WO2014107094A1

WO2014107094A1 - Sensing assembly for secondary battery module and secondary battery module provided with sensing assembly

Info

Publication number: WO2014107094A1
Application number: PCT/KR2014/000150
Authority: WO
Inventors: 조세훈; 이지윤; 음영환; 황규민
Original assignee: 에스케이이노베이션 주식회사
Priority date: 2013-01-07
Filing date: 2014-01-07
Publication date: 2014-07-10
Also published as: CN104904037B; CN104904037A; KR20140091123A; KR101986384B1

Abstract

The present invention relates to a sensing assembly for a secondary battery module and to a secondary battery module provided with a sensing assembly and a substrate holder in the sensing assembly. The sensing assembly is mounted in the secondary battery module with a plurality of battery cells, and connected to the cell tab of the battery cells so as to sense the voltage of the battery cells, and is characterized by including: a plate-like substrate holder formed as an insulation member fixed to a side part of the cell tab; a plurality of voltage-sensing connection members including a tab connection part fixed to the substrate holder through insert-injection and extended to the cell tab so as to be fixed thereto, and a substrate connection part arranged in the upper part of the substrate holder; and a sensing PCB detachably attached to the upper part of the substrate holder for sensing the voltage of the cell tab by contacting the substrate connection part when seated on the upper part of the substrate holder. Thus the sensing assembly for the secondary battery module and the secondary battery module provided with the sensing assembly according to the present invention have a structure such that the sensing PCB is connected to the substrate holder only by means of resilient contact, thereby simplifying attachment or detachment of the sensing PCB to or from the substrate holder, and facilitating maintenance and repair.

Description

Sensing assembly for a secondary battery module and a secondary battery module having the sensing assembly

[Cross References of Related Applications]

This application claims priority to Korean Patent Application No. 10-2013-0001558, filed January 7, 2013, the contents of which are incorporated by reference in their entirety for reference.

The present invention relates to a sensing assembly for a secondary battery module and a secondary battery module having the sensing assembly.

The secondary battery is a battery which can be repeatedly charged and discharged, and obtains energy through an electrochemical reaction of an internal active material. The performance of such a secondary battery is influenced by, for example, the charging method, the degree of discharge, the temperature environment during storage and use, the load level and the number of charge and discharge cycles.

Recently, secondary batteries have been developed in the field of lithium ion batteries, lithium polymer batteries, or fuel cells having high energy density and light mass, and are widely used in industrial, automotive, portable, or mobile power supplies.

On the other hand, such a secondary battery is equipped with various protection and control circuits in a bare cell, and also modularized to be suitable for an external system to be used and used as a secondary battery module.

The circuit controls the charging and discharging of the secondary battery module, as well as blocks the circuit during the overcharging or overdischarging of the secondary battery module, thereby extending the life of the secondary battery module and further preventing the risk of explosion or fire. In addition, recently, a monitoring system has been adopted to inform in real time the remaining discharge capacity or temperature of the secondary battery module in use.

The monitoring system includes a sensing assembly that continuously detects a voltage or temperature of a battery cell constituting the secondary battery module and informs the outside.

The sensing assembly includes a sensing PCB electrically connected to the cell tab of each battery cell, and informs the temperature or voltage of the battery cell to the outside through a connector mounted on the sensing PCB.

On the other hand, the conventional sensing assembly has poor solderability (soldering) in order to electrically connect the sensing PCB on which the connector is mounted to the legs electrically connected to the cell tabs. .

As is known, the sensing assembly includes a substrate holder seated and fixed to a secondary battery module, and a sensing (where various components and circuits are formed to sense voltage and temperature of a battery cell) fixed to an upper portion of the substrate holder. Although it consists of a PCB, it is very inconvenient to connect the connection leg fixed to the board | substrate holder, and the circuit mounted in the sensing PCB. That is, since the legs and the sensing PCB are fixedly integrated through soldering, assembly and separation of the sensing PCB with respect to the substrate holder is cumbersome.

10 and 11 are views for reference to explain the problem of the above-described conventional sensing assembly.

Referring to the drawings, it can be seen that a plurality of legs 65 are provided at both sides of the substrate holder 69. The leg 65 is inserted into the substrate holder 69, and one end extending horizontally is connected to the cell tab, and the other end 65a protrudes upward for coupling with the sensing PCB 63.

The sensing PCB 63 coupled to the upper portion of the substrate holder 69 is formed with circuits and various components such as the connector 67 as described above, and has through-holes 63a at both sides. The through hole 63a is a hole provided so that the fixing screw 63b passes downward to engage the female screw hole 69a.

In addition, a plurality of coupling holes 63c are formed in the edge portion of the sensing PCB 63. The coupling hole 63c is a passage through which the other end 65a of the leg 65 passes upward when the sensing PCB 63 is seated in the substrate holder 69. The other end 65a is a portion that is connected to the circuit of the sensing PCB 63 in a state where the coupling hole 63c passes.

As described above, in the conventional sensing assembly, the connection of the sensing PCB 63 to the substrate holder 69 is very inconvenient, which senses the sensing end of the other end 65a of the leg 65 raised above the sensing PCB 63. This is because it is necessary to weld the connection part of the circuit one by one. In addition, since the flow soldering (flowe soldering) and the reflow (reflow) process must be applied for the welding process, the work is very inconvenient, of course, requires a very skilled technique.

In addition, when a circuit pattern, a component, a fuse, or the like of the sensing PCB 63 is cut off or the sensing PCB is unable to operate due to other reasons, the recovery of the sensing assembly 61 is virtually impossible, and thus the whole module including the battery cell is not possible. Must be replaced.

If the sensing PCB malfunctions, anyway, the sensing PCB 63 must be separated from the substrate holder 69 and replaced with a new sensing PCB. As described above, the legs of the substrate holder and the sensing PCB perform soldering. It is very difficult to separate the sensing PCB easily and cleanly from the substrate holder as long as it is completely fixed. The workability is bad.

The present invention has been made to solve the above problems, and has a structure in which the sensing PCB is connected to the substrate holder through only elastic contact, so that the assembly and separation of the sensing PCB to the substrate holder is simple and easy to maintain. An object of the present invention is to provide a secondary battery module sensing assembly and the secondary battery module having the sensing assembly.

According to an aspect of the present invention, there is provided a sensing assembly for a secondary battery module including: a substrate holder taking the form of a plate as an insulating member fixed to a cell tab side of a battery cell in a secondary battery module having a plurality of battery cells; A plurality of voltage sensing connection members fixed to the substrate holder through insert injection, having a tab connection part extending toward the cell tab and fixed to the cell tab, and a substrate connection part disposed on the substrate holder; And a sensing PCB which is detachably coupled to the upper portion of the substrate holder and receives the voltage of the cell tab by contacting each of the substrate connection parts while being mounted on the upper portion of the substrate holder.

In addition, the substrate connecting portion is elastically deformable.

In addition, another sensing assembly for a secondary battery module of the present invention for achieving the above object is mounted on a secondary battery module having a plurality of battery cells to sense the voltage and temperature emitted from the battery cell, the shape of the plate An insulating substrate holder; A temperature sensing connection member disposed on an upper surface of the substrate holder and coupled to a thermistor sensing the temperature of the battery cell; A sensing PCB is coupled to the upper portion of the substrate holder to be detachable, and in contact with the temperature sensing connection member while seated on the upper portion of the substrate holder.

In addition, the temperature sensing connection member is elastically deformable by an external force.

In addition, the said board | substrate connection part takes the form of a leaf spring or a coil spring.

The temperature sensing connection member may take the form of a leaf spring or a coil spring.

In addition, a female screw hole is formed on an upper surface of the substrate holder, and the sensing PCB is coupled to the substrate holder by a fixing screw coupled to the female screw hole through the sensing PCB.

In addition, the substrate holder is in the form of a rectangular plate and the upper edge portion is formed integrally with the wall portion protruding above the substrate holder, for mounting the sensing PCB to the substrate holder, one side of the wall portion A fitting slit is formed on the inward surface to support a portion of the sensing PCB therein, and a fixing means for receiving and fixing another portion of the sensing PCB is provided on the wall opposite to the fitting slit.

In addition, the opening is formed in the upper wall is located on the fixing means, the fixing means; It is rotatably installed on the wall portion, and after the other portion of the sensing PCB is seated in the opening is fixed to the wall by moving toward the opening side, it comprises a locking lever for restraining the sensing PCB in the opening.

In addition, the secondary battery module of the present invention for achieving the above object, and a case for receiving a plurality of battery cells, connected to the cell tab of the battery cell in a state supported by the case senses and senses the voltage of the battery cell In the secondary battery module comprising a sensing assembly for transmitting the voltage information to the outside, The sensing assembly comprises; A substrate holder in the form of a plate as an insulating member fixed to the side of the cell tab; A plurality of voltage sensing connection members fixed to the substrate holder through insert injection, having a tab connection part extending toward the cell tab and fixed to the cell tab, and a substrate connection part disposed on the substrate holder; And a sensing PCB which is detachably coupled to the upper portion of the substrate holder and receives the voltage of the cell tab by contacting each of the substrate connection parts while being mounted on the upper portion of the substrate holder.

In addition, the substrate connecting portion is elastically deformable by an external force.

In addition, another secondary battery module of the present invention for achieving the above object, and a case for receiving a plurality of battery cells; Sensing the temperature of the battery cell while being supported by the case, and transmitting the sensed temperature information to the outside, the insulating substrate holder in the form of a plate, and disposed on the upper surface of the substrate holder and the temperature of the battery cell And a sensing assembly having a temperature sensing connection member coupled to a sensing thermistor, and a sensing PCB coupled to and detachably attached to an upper portion of the substrate holder, the sensing PCB being in contact with the temperature sensing connection member while seated on an upper portion of the substrate holder. .

In addition, the substrate connection portion may take the form of a leaf spring or a coil spring.

In addition, an opening opening is formed in the upper wall is located on the fixing means, the fixing means; It is rotatably installed on the wall portion, and after the other portion of the sensing PCB is seated in the opening is fixed to the wall by moving toward the opening side, it comprises a locking lever for restraining the sensing PCB in the opening.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, the terms or words used in this specification and claims are not to be interpreted in a conventional and dictionary sense, and the inventors may appropriately define the concept of terms in order to best describe their own invention. Based on the principle that the present invention should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Since the sensing assembly for the secondary battery module and the secondary battery module including the sensing assembly of the present invention having the above structure have a structure in which the sensing PCB is connected to the plate holder through only elastic contact, the sensing PCB for the substrate holder is provided. Simple assembly and disassembly and easy maintenance.

1 is a perspective view of a sensing assembly and a secondary battery module having the sensing assembly according to an embodiment of the present invention.

2 is a partially exploded perspective view of the secondary battery module illustrated in FIG. 1.

3 is a diagram illustrating the structure of the sensing assembly shown in FIG. 1 in more detail.

4 is an exploded perspective view illustrating an exploded view of the sensing assembly illustrated in FIG. 1.

FIG. 5 is a side view of the sensing assembly shown in FIG. 1.

FIG. 6 is a bottom view illustrating a bottom surface of a sensing PCB in the sensing assembly shown in FIG. 1.

7 is a side view illustrating a mounting structure of a sensing PCB on a substrate holder in the sensing assembly.

8 is a perspective view illustrating another example of a sensing assembly according to an embodiment of the present invention.

9 is an exploded perspective view showing another example of a sensing assembly according to an embodiment of the present invention.

10 and 11 are views for reference to explain the problem of the conventional sensing assembly.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

In the present specification, in adding reference numerals to the elements of each drawing, it should be noted that the same elements as possible, even if displayed on different drawings have the same number as possible.

In addition, terms such as “first”, “second”, “one side” and “other side” are used to distinguish one component from another component, and the component is limited by the terms. It is not.

In addition, in the description of the present invention, detailed descriptions of related well-known technologies that may unnecessarily obscure the subject matter of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a sensing assembly and a secondary battery module having the sensing assembly according to an embodiment of the present invention, and FIG. 2 is a partially exploded perspective view of the secondary battery module illustrated in FIG. 1.

As illustrated, the secondary battery module 31 in which the sensing assembly 33 according to the present embodiment is mounted includes a box-shaped case 13 accommodating a plurality of battery cells 29 and a case 13 of the case 13. A plurality of battery cells 29 arranged therein, a frame 15 having a rectangular frame shape positioned on the case 13, and a housing 17 provided in the center of the frame 15 and providing a supporting force. And a sensing assembly 33 installed in the housing 17 and connected to the cell tab 27 of the battery cell 29.

The battery cells 29 are formed in the shape of the positive and negative cell tabs on the top 12 are disposed adjacent to the inside of the case 13, the sensing assembly 33 of the positive and negative cell tabs of the battery cell 29 In the state located between, it is welded to the cell tab 27 of both battery cells 29.

The sensing assembly 33 continuously monitors the voltage and temperature of each battery cell 29 and sends it to an external monitoring device through the connector 23.

The sensing assembly 33 includes a substrate holder 45 seated and fixed to the housing 17, a voltage sensing connection member 47 inserted into the substrate holder 45, and a substrate holder 45. The packing 41 is fitted to the upper surface of the edge portion, and the sensing PCB 35 is fixed to the upper portion of the packing (41).

In the sensing PCB, various components and circuits for sensing the voltage and temperature of the battery cell 29 are formed, and the connector 23 is mounted. The connector 23 is a connection portion connected to an external monitoring device.

The substrate holder 45 takes the form of a rectangular plate and has six and seven voltage sensing connection members 47 on both sides in the width direction. The voltage sensing connection member 47 may be made of any conductive metal such as copper or aluminum, but is limited to phosphor bronze, beryllium copper, and brass having excellent elastic resilience to increase the effect of the invention. In addition, the voltage sensing connection member is inserted when the substrate holder 45 is molded, and a part of the voltage sensing connection member is inserted into the substrate holder 45.

One end of the voltage sensing connection member 47 is a tab connection portion 47a, which extends from both side portions in the width direction of the substrate holder 47 to the respective cell tabs 27 and is welded to the cell step 27. The other end of the voltage sensing connection member 47 is exposed to the upper surface of the substrate holder 45. The portion exposed to the upper surface is a substrate connecting portion 47b that elastically connects to the bottom surface of the sensing PCB 35.

The voltage sensing connection member 47 serves to connect each battery cell 29 to the sensing PCB 35.

3 is a view illustrating in detail the structure of the substrate holder 45 of the sensing assembly 33 shown in FIG.

As shown, the substrate holder 45 takes the form of a rectangular plate and is fitted inside the housing 17. The coupling method of the substrate holder 45 to the housing 17 may employ any coupling method. Alternatively, the substrate holder 45 may not be firmly fixed to the housing 17 as long as the tab connection portion 47a is welded to each cell tab 27.

A rectangular packing groove 45b is formed at an upper edge portion of the substrate holder 45. The packing groove 45b is a groove having a predetermined width and depth and accommodates the packing 41.

In addition, a plurality of support protrusions 45c are integrally formed in the inner region of the packing groove 45b. The support protrusion 45c is for determining a relative position of the sensing PCB 35 with respect to the substrate holder 45, and is formed in the fitting groove 35a formed at both edges in the width direction of the sensing PCB 35. Is fitted.

As the fitting groove 35a is inserted into the support protrusion 45c, the sensing PCB 35 may be supported on the upper portion of the substrate holder 45 in parallel with the substrate holder 45.

In addition, female screw holes 45a are provided on the upper surfaces of both ends in the longitudinal direction of the substrate holder 45. The female screw hole 45a is a hole in which a female thread is formed on the inner circumferential surface thereof, and the fixing screw 43 is engaged.

The fixing screw 43 passes downward through the sensing PCB 35 to be coupled to the female screw hole 45a to fix the sensing PCB 35 to the upper portion of the substrate holder 45. The fixing method of the sensing PCB 35 with respect to the substrate holder 45 may be variously changed.

In addition, the substrate connecting portion 47b disposed on the upper surface of the substrate holder 45 takes the form of a leaf spring bent a plurality of times. Since the board connection part 47b has an elastic force, for example, when the force is applied to the substrate, the substrate connection part 47b is deformed by pressing down.

In particular, the temperature sensing connection member 49 is provided at the center of the substrate holder 45. The temperature sensing connection member 49 is made of a conductive metal member such as copper or aluminum, and is connected to the thermistor 51 of FIG. 6 as shown in FIG. The thermistor 51 will be described later.

The temperature sensing connection member 49 is also made of copper or aluminum and is bent to have elasticity to take the form of a leaf spring, which is pressed downward when the sensing PCB 35 is seated on the substrate holder 45. do.

4 is an exploded view illustrating the sensing assembly 33 illustrated in FIG. 1.

As shown, a plurality of voltage sensing connection members 47 are fixed to the substrate holder 45. As described above, since the substrate holder 45 is molded in the state where the voltage sensing connection member 47 is inserted into the mold during molding, the substrate holder 45 includes a part of the voltage sensing connection member 47 therein.

The tab connecting portion 47a, which is one end of the voltage sensing connecting member 47, extends in parallel on both sides of the substrate holder 45. As shown in FIG. In addition, the board connecting portion 47b, which is the other end of the voltage sensing connecting member 47, is located on the upper surface of the substrate holder 45. The substrate connecting portion 47b is bent and takes the form of a leaf spring.

The packing 41 inserted into the packing groove 45b is made of soft silicone or rubber, and seals the lower space of the sensing PCB 35 so that external moisture is absorbed into the lower space of the sensing PCB 35. Do not allow penetration. Since the lower space is an electrical connection space between the substrate connecting portion 47b and the temperature sensing connecting member 49 with respect to the sensing PCB 35, it is very important to block external moisture.

On the other hand, the sensing PCB 35 is to inform the outside of the voltage and temperature information through the connector 23, various electronic components for this is mounted. In addition, the sensing PCB 35 includes a plurality of fuses 39. The fuse 39 is cut when an abnormal situation occurs to protect the secondary battery module 31.

5 is a side view of the sensing assembly 33 shown in FIG.

Referring to the drawings, it can be seen that a thermistor holder 45d is provided below the substrate holder 45, and a thermistor 51 is inserted into the thermistor holder 45d. The thermistor holder 45d has a substantially cylindrical shape and is integral with the bottom surface of the substrate holder 45 to accommodate the thermistor 51 therein.

The thermistor 51 detects the temperature of the battery cell 29 with its lower end positioned between the battery cells 29, and converts the temperature into an electrical signal to the temperature sensing connection member 49. The temperature information transmitted to the temperature sensing connection member 49 is reported to the external monitoring device through the sensing PCB 35.

FIG. 6 is a bottom view illustrating a bottom surface of the sensing PCB 35 in the sensing assembly 33 shown in FIG. 1.

As shown, a plurality of connecting

portions

35b and 35c are located on the bottom surface of the sensing PCB 35. The

connection parts

35b and 35c correspond to the board connection part 47b in a one-to-one correspondence with elastic contact and the second connection part in contact with the temperature sensing connection member 49.

7 is a side view illustrating a mounting structure of a sensing PCB to a substrate holder in the sensing assembly.

Referring to the drawings, it can be seen that the sensing PCB 35 is fixed to the upper portion of the substrate connecting portion 45 by the fixing screw 43. The sensing PCB 35 is horizontally maintained above the substrate connection part 45. In addition, the space under the sensing PCB 35 is sealed by the packing 41.

In addition, the board connection part 47b of the voltage sensing connection member 47 is in contact with the first connection part 35b while being pressed down by the sensing PCB 35.

When the fixing screw 43 is loosened in this state, the sensing PCB 35 is separated from the substrate holder 45. That is, by loosening the fixing screw 43, the external monitoring device (not shown) can be separated from the secondary battery module 31.

The same reference numerals as the above reference numerals denote the same members having the same function.

Referring to the drawings, a coil spring type substrate connecting portion 47c is arranged at the outer periphery of the upper surface of the substrate holder 45, and the coil spring type temperature sensing connecting member 50 is fixed to the center portion of the substrate holder 45. have.

The substrate connecting portion 47c is fixed to the upper surface of the substrate holder 45 in a state of being connected to the voltage sensing connecting member 47, and presses the sensing PCB 35 downward when it is seated on the upper portion of the substrate connecting portion 47c. And elastic deformation. The board connection part 47c plays the same role as the plate spring type board connection part 47b described above.

In addition, the temperature sensing connection member 50 is connected to the thermistor 51 and transmits the temperature information received from the thermistor 51 to the second connection portion 35c on the bottom surface of the sensing PCB 35. The temperature sensing connection member 50 is a shape of a coil spring, and is compressed when the sensing PCB 35 is fixed on the substrate holder 45.

9 is an exploded perspective view showing another example of the sensing assembly 33 according to an embodiment of the present invention.

As shown in the drawing, the wall portion 45e is integrally formed on the upper surface of the substrate holder 45. The wall portion 45e takes the form of a rectangular frame and has a fitting slit 45f on one side inwardly facing surface. The fitting slit 45f is a groove extending in the horizontal direction and accommodates the fitting portion 35d provided at one end of the sensing PCB 35.

The fitting portion 35d is a portion protruding in the longitudinal direction of the sensing PCB 35 formed at one end of the sensing PCB 35. In the sensing PCB 35, another fitting portion 35e is provided on the opposite side of the fitting portion 35d. The fitting portion 35e is a portion that is locked to the lock lever 45n in a state of being seated in the opening 45k.

In the substrate holder 45, an opening 45k and a locking lever 45n are provided on the opposite side of the fitting slit 45f. The opening 45k and the locking lever 45n are for accommodating and fixing the fitting portion 35e.

The opening 45k is a portion open to the upper portion of the wall 45e. Since the opening 45k is open to the upper side, for example, the fitting part 35d of the sensing PCB 35 is inserted when the other fitting part 35e is lowered while the fitting slit 45f is fitted. The part 35e can be seated in the opening 45k.

The locking lever 45n is a rod-like member that can be rotated in the direction of arrow a or the opposite direction while being supported by the fixing pin 45q. In particular, the support surface 45r is formed in the bottom surface of the lock lever 45n. The support surface 45r is a portion for pressing and supporting the fitting portion 35e downward.

That is, when the locking lever 45n is rotated in the direction of arrow a in the state where the fitting portion 35e is seated on the opening 45k, the supporting surface 45r is inserted into the opening 45k. Interviewing the fitting portion 35e and supporting the fitting portion 35e downward.

Reference numeral 45m denotes a protrusion. The projection portion 45m is fitted into the groove portion 45p formed at the distal end portion of the locking lever 45n when the locking lever 45n is rotated and inserted into the opening 45k, so that the locking lever 45n is pulled out. It serves to support.

As mentioned above, the present invention has been described in detail through specific embodiments, which are intended to specifically describe the present invention, but the present invention is not limited thereto, and one having ordinary skill in the art within the technical idea of the present invention. It is apparent that the deformation and improvement can be made by.

All modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.

[Description of the code]

13: Case

15: Frame

17: Housing

23: Connector

It is a cell tab

29: battery cell

31: secondary battery module

33: sensing assembly

35: sensing PCB

35a: fitting groove

35b: First connection part

35c: second connection

35d, 35e:

39: fuse

41: Packing

43: set screw

45: substrate holder

45a: female thread hole

45b: Packing groove

45c: support protrusion

45d: thermistor holder

45e: Wall part

45f: fitting slit

45k: Opening

45m: protrusion

45n: Lock lever

45p: Groove

45q: fixed pin

45r: ground level

47: voltage sensing connection member

47a: tap connection

47b: Board connection

47c: Board connection

49, 50: temperature sensing connection member

51: thermistor

Claims

A substrate holder in the form of a plate as an insulating member fixed to a cell tab side of a battery cell in a secondary battery module having a plurality of battery cells;

A plurality of voltage sensing connection members fixed to the substrate holder through insert injection, having a tab connection part extending toward the cell tab and fixed to the cell tab, and a substrate connection part disposed on the substrate holder;

And a sensing PCB coupled to the upper part of the substrate holder to be detachably attached to the upper part of the substrate holder, the sensing PCB receiving the voltage of the cell tab by contacting each of the substrate connection parts.
The method according to claim 1,

The substrate connection part is a sensing assembly for the secondary battery module elastically deformable.
As mounted on a secondary battery module having a plurality of battery cells to sense the voltage and temperature emitted from the battery cell,

An insulating substrate holder in the form of a plate;

A temperature sensing connection member disposed on an upper surface of the substrate holder and coupled to a thermistor sensing the temperature of the battery cell;

And a sensing PCB coupled to the upper part of the substrate holder to be detachably attached to the upper part of the substrate holder, the sensing PCB contacting the temperature sensing connection member.
The method according to claim 3,

The temperature sensing connection member is a sensing assembly for a secondary battery module elastically deformable by an external force.
The method according to claim 2,

The substrate connection part is a sensing assembly for a secondary battery module taking the form of a leaf spring or a coil spring.
The method according to claim 4,

The temperature sensing connection member is a sensing assembly for a secondary battery module taking the form of a leaf spring or a coil spring.
The method according to any one of claims 1 to 4,

A female screw hole is formed on the upper surface of the substrate holder.

The sensing PCB is a sensing assembly for a secondary battery module coupled to the substrate holder by a fixing screw coupled to the female screw hole through the sensing PCB.
The method according to any one of claims 1 to 4,

The substrate holder is in the form of a rectangular plate, and the upper edge portion of the substrate holder is integrally formed with a wall portion protruding above the substrate holder.

For mounting the sensing PCB to the substrate holder,

One side inwardly of the wall portion is provided with a fitting slit for supporting a portion of the sensing PCB therein, the second wall portion of the opposite side of the fitting slit secondary battery provided with a fixing means for receiving and fixing another portion of the sensing PCB Sensing assembly for module.
The method according to claim 8,

On the wall portion where the fixing means is located is formed an opening opening to the upper,

The fixing means;

The secondary battery module is rotatably installed in the wall part, and after the other part of the sensing PCB is seated in the opening, and then moved to the opening side to be fixed to the wall, the secondary battery module includes a locking lever for restraining the sensing PCB in the opening. Sensing assembly.
A secondary battery module includes a case accommodating a plurality of battery cells, and a sensing assembly connected to a cell tab of the battery cell while being supported by the case to sense a voltage of the corresponding battery cell and transmit sensed voltage information to the outside. To

The sensing assembly is;

A substrate holder in the form of a plate as an insulating member fixed to the side of the cell tab;

A plurality of voltage sensing connection members fixed to the substrate holder through insert injection, having a tab connection part extending toward the cell tab and fixed to the cell tab, and a substrate connection part disposed on the substrate holder;

A secondary battery module comprising a sensing PCB coupled to the upper portion of the substrate holder detachably, the sensing PCB receives the voltage of the cell tab in contact with each of the substrate connection in a state seated on the upper portion of the substrate holder.
The method according to claim 10,

The substrate connection part may be elastically deformable by an external force.
A case accommodating a plurality of battery cells;

Sensing the temperature of the battery cell while being supported by the case, and transmitting the sensed temperature information to the outside, the insulating substrate holder in the form of a plate, and disposed on the upper surface of the substrate holder and the temperature of the battery cell And a sensing assembly having a temperature sensing connection member coupled to a sensing thermistor, and a sensing assembly coupled to the upper part of the substrate holder to be detachable, the sensing PCB being in contact with the temperature sensing connection member while seated on the upper part of the substrate holder. Secondary battery module.
The method according to claim 12,

The temperature sensing connection member is a secondary battery module capable of elastic deformation by an external force.
The method according to claim 11,

The substrate connection part is a secondary battery module taking the form of a leaf spring or coil spring.
The method according to claim 13,

The temperature sensing connection member is a secondary battery module in the form of a leaf spring or coil spring.
The method according to any one of claims 10 to 13,

A female screw hole is formed on the upper surface of the substrate holder.

The sensing PCB is coupled to the substrate holder by a fixing screw coupled to the female screw hole through the sensing PCB.
The method according to any one of claims 10 to 13,

The substrate holder is in the form of a rectangular plate, and the upper edge portion of the substrate holder is integrally formed with a wall portion protruding above the substrate holder.

For mounting the sensing PCB to the substrate holder,

One side inwardly of the wall portion is provided with a fitting slit for supporting a portion of the sensing PCB therein, the second wall portion of the opposite side of the fitting slit secondary battery provided with a fixing means for receiving and fixing another portion of the sensing PCB module.
The method according to claim 17,

On the wall portion where the fixing means is located is formed an opening opening to the upper,

The fixing means;

Secondary battery module comprising a lock lever is rotatably installed on the wall portion, the other part of the sensing PCB is seated in the opening and then moved to the opening side to be fixed to the wall, thereby restraining the sensing PCB in the opening.