CN210154134U - Secondary heat exchange device for automobile air conditioner - Google Patents
Secondary heat exchange device for automobile air conditioner Download PDFInfo
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- CN210154134U CN210154134U CN201921056854.6U CN201921056854U CN210154134U CN 210154134 U CN210154134 U CN 210154134U CN 201921056854 U CN201921056854 U CN 201921056854U CN 210154134 U CN210154134 U CN 210154134U
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Abstract
The utility model discloses a secondary heat exchange device for an automobile air conditioner, which relates to the technical field of automobile air conditioning systems and comprises a high-pressure connecting pipe, a low-pressure connecting pipe, a sleeve, a first connecting pressing plate and a second connecting pressing plate; the first connecting pressing plate is provided with a high-temperature inlet part and a low-temperature outlet part; the second connecting pressing plate is provided with a low-temperature inlet part and a high-temperature outlet part; the inner pipe of the sleeve is internally provided with a low-temperature channel which is communicated with a low-temperature outlet part of the first connecting pressing plate; a high-temperature channel is arranged between the outer pipe and the inner pipe of the sleeve and is communicated with the high-temperature inlet part of the first connecting pressing plate; the upper end of the sleeve is provided with a connector; one end of the low-pressure connecting pipe is communicated with the low-temperature inlet part of the second connecting pressing plate, and the other end of the low-pressure connecting pipe is communicated with the low-temperature channel through the interface part; one end of the high-pressure connecting pipe is communicated with the high-temperature outlet part of the second connecting pressing plate, and the other end of the high-pressure connecting pipe is communicated with the high-temperature channel through the connector part.
Description
Technical Field
The utility model relates to a vehicle air conditioning system technical field, specifically a secondary heat transfer device for vehicle air conditioner.
Background
The automobile air conditioning system adopts a vapor compression type refrigeration principle. The air conditioning system mainly comprises a compressor, a condenser, a liquid storage dryer, a thermal expansion valve, an evaporator and high-low pressure pipelines. The principle is as follows: the low-temperature low-pressure liquid refrigerant enters the evaporator, absorbs heat and vaporizes under certain pressure to become low-temperature low-pressure gaseous refrigerant, is sucked and compressed by the compressor to become high-temperature high-pressure gaseous refrigerant, releases heat through the condenser, is condensed into low-temperature high-pressure liquid refrigerant, passes through the thermostatic expansion valve, returns to a low-temperature low-pressure state, and flows into the evaporator again to absorb heat and vaporize, so that a refrigeration cycle is completed.
The low-pressure pipeline of the air conditioner absorbs heat at low temperature to dissipate energy. The low-pressure pipe is connected with an outlet of the evaporator, the temperature of the refrigerant coming out is low due to the low temperature of the evaporator in the air-conditioning refrigeration process, so that water drops can be condensed on the surface of a low-pressure pipeline of the air conditioner in summer, which is the embodiment of heat absorption of the low-pressure pipeline, and the energy can be dissipated to an engine compartment through the low-pressure pipe in a heat transfer mode, so that the load of a compressor and an engine can be increased. The high-pressure pipeline is connected with the outlet of the condenser assembly and the outlet of the compressor assembly, and high-temperature and high-pressure liquid is filled in the high-pressure pipeline in the working process of the air-conditioning system and needs to be cooled, so that the temperature of a refrigerant at the inlet of the evaporator is reduced, and the refrigerating performance of the air-conditioning system is improved.
In recent years, along with the attention of people to the environment, the emission of greenhouse gases of automobiles is reduced, and the improvement of fuel efficiency is more and more important to the automobile industry, so that the state also develops a plurality of incentives in this aspect.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a secondary heat transfer device for vehicle air conditioner can realize the secondary heat transfer among the air conditioning system, improves air conditioner refrigeration efficiency.
In order to achieve the above purpose, the utility model adopts the technical proposal that: a secondary heat exchange device for an automobile air conditioner comprises a high-pressure connecting pipe, a low-pressure connecting pipe, a sleeve, a first connecting pressing plate and a second connecting pressing plate; the first connecting pressing plate is provided with a high-temperature inlet part for high-temperature and high-pressure refrigerant to flow in and a low-temperature outlet part for low-temperature and low-pressure refrigerant to flow out; the second connecting pressing plate is provided with a low-temperature inlet part for low-temperature and low-pressure refrigerants to flow in and a high-temperature outlet part for high-temperature and high-pressure refrigerants to flow out; the inner pipe of the sleeve is internally provided with a low-temperature channel for flowing low-temperature and low-pressure refrigerant, and the low-temperature channel is communicated with the low-temperature outlet part of the first connecting pressing plate; a high-temperature channel for high-temperature and high-pressure refrigerant to flow is arranged between the outer pipe and the inner pipe of the sleeve and is communicated with the high-temperature inlet part of the first connecting pressing plate; the upper end of the sleeve is provided with a connector; one end of the low-pressure connecting pipe is communicated with the low-temperature inlet part of the second connecting pressing plate, and the other end of the low-pressure connecting pipe is communicated with the low-temperature channel through the interface part; one end of the high-pressure connecting pipe is communicated with the high-temperature outlet part of the second connecting pressing plate, and the other end of the high-pressure connecting pipe is communicated with the high-temperature channel through the connector part.
The further improvement lies in that: the high temperature channel is composed of a plurality of gap channels surrounding the inner pipe.
The further improvement lies in that: the sleeve is provided with pipe clamps at the position close to the upper end and the position close to the lower end.
The further improvement lies in that: the inner side of the pipe clamp is provided with a rubber pad, and the mounting lug of the pipe clamp is provided with a lining and a shock pad.
The further improvement lies in that: and the low-temperature inlet part and the high-temperature outlet part of the second connecting pressing plate are both provided with first O-shaped sealing rings.
The further improvement lies in that: and a high-pressure filling valve is arranged on the high-pressure connecting pipe and is provided with a high-pressure valve core and a high-pressure valve cap.
The further improvement lies in that: the high-pressure connecting pipe is provided with a sight glass seat, and the sight glass seat is provided with a glass lens, a plastic gasket and a second O-shaped sealing ring which are fixed by a tightening nut.
The further improvement lies in that: the sight glass seat is provided with a pressure switch.
The further improvement lies in that: the low-pressure connecting pipe is provided with a low-pressure filling valve which is provided with a low-pressure valve core and a low-pressure valve cap.
The beneficial effects of the utility model reside in that:
the utility model discloses utilized the principle of heat exchange, utilized unnecessary energy reuse to the refrigerant that makes the entering evaporation case will arrive lower temperature, with this reinforcing vehicle air conditioner refrigeration effect. Besides enhancing the refrigeration effect, the air conditioner can save energy and oil, and is environment-friendly and efficient.
The physical characteristics of two pipelines in the working process of the air conditioning system, namely, a low-pressure pipeline, namely, a refrigerant just comes out of an evaporator at a low temperature and absorbs heat from the environment, so that if the energy cannot be effectively utilized, the energy is dissipated in a heat radiation mode due to the fact that the temperature of an engine cabin is high in the running process of a whole vehicle, and energy loss is caused; meanwhile, the high-temperature and high-pressure refrigerant of the high-pressure pipeline of the air conditioner needs to dissipate heat to improve the refrigeration performance, and the high-pressure and low-pressure pipe integrated secondary heat exchange device for the air conditioner can effectively solve the problems.
Drawings
FIG. 1 is a schematic structural view of a secondary heat exchange device in an embodiment of the present invention;
fig. 2 is a schematic structural view of another view angle of the secondary heat exchange device in the embodiment of the present invention;
fig. 3 is a sectional view of the sleeve according to the embodiment of the present invention;
fig. 4 is the schematic diagram of the secondary heat exchange device in the embodiment of the present invention.
Reference numerals:
1-a sleeve; 11-an interface section; 12-a pipe clamp; 13-rubber pad; 14-a shock pad; 15-inner tube; 16-an outer tube; 17-a cryogenic channel; 18-high temperature channels;
2-high pressure connecting pipe; 21-a high pressure filling valve; 22-a sight glass seat; 23-a pressure switch;
3-a low-pressure connecting pipe; 31-a low pressure filling valve;
4-a first connecting pressure plate; 41-high temperature inlet part; 42-low temperature outlet;
5-a second connecting pressure plate; 51-high temperature outlet; 52-low temperature inlet portion.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.
The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides a secondary heat exchange device for an automobile air conditioner, including a high-pressure connection pipe 2 and a low-pressure connection pipe 3, and further including a sleeve 1, a first connection pressing plate 4, and a second connection pressing plate 5;
the first connecting pressure plate 4 has a high-temperature inlet 41 into which a high-temperature and high-pressure refrigerant (70 to 80 degrees centigrade) flows and a low-temperature outlet 42 from which a low-temperature and low-pressure refrigerant (5 to 10 degrees centigrade) flows;
the second connecting platen 5 has a low-temperature inlet 52 into which a low-temperature and low-pressure refrigerant flows and a high-temperature outlet 51 from which a high-temperature and high-pressure refrigerant flows; specifically, the low-temperature inlet portion 52 and the high-temperature outlet portion 51 of the second connecting platen 5 are both provided with first O-ring seals.
Referring to fig. 3, the inner tube 15 of the casing 1 has a low temperature passage 17 for flowing a low temperature and low pressure refrigerant therein, the low temperature passage 17 communicating with the low temperature outlet portion 42 of the first connection pressing plate 4; a high temperature passage 18 through which high temperature and high pressure refrigerant flows is formed between the outer tube 16 and the inner tube 15 of the casing tube 1, and the high temperature passage 18 is communicated with the high temperature inlet portion 41 of the first connecting presser plate 4; the upper end of the sleeve 1 is provided with a connecting part 11; specifically, the high temperature passage 18 is composed of a plurality of slit passages surrounding the inner pipe 15. The sleeve 1 is provided with a pipe clamp 12 both near the upper end and near the lower end. The inner side of the pipe clamp 12 is provided with a rubber pad 13, and the mounting ears of the pipe clamp 12 are provided with an inner lining and a shock pad 14.
One end of the low-pressure connecting pipe 3 is communicated with the low-temperature inlet part 52 of the second connecting pressing plate 5, and the other end of the low-pressure connecting pipe 3 is communicated with the low-temperature channel 17 through the interface part 11; specifically, the low-pressure connection pipe 3 is provided with a low-pressure filling valve 31, and the low-pressure filling valve 31 has a low-pressure spool and a low-pressure bonnet. The function of filling the refrigerant from the low-pressure side is satisfied.
One end of the high-pressure connection pipe 2 is connected to the high-temperature outlet 51 of the second connection platen 5, and the other end of the high-pressure connection pipe 2 is connected to the high-temperature passage 18 through the joint 11. Specifically, the high-pressure connection pipe 2 is provided with a high-pressure filling valve 21, and the high-pressure filling valve 21 has a high-pressure valve core and a high-pressure valve cap. The function of charging the refrigerant from the high-pressure side is satisfied. The high-pressure connecting pipe 2 is provided with a sight glass seat 22, and the sight glass seat 22 is provided with a glass lens, a plastic gasket and a second O-shaped sealing ring which are fixed by a tightening nut. The sight glass seat 22 can be used for observing the state of the refrigerant inside the pipeline to determine the charging amount of the refrigerant; the lens base 22 is provided with a pressure switch 23. The pressure switch 23 can transmit a pressure signal to the air conditioning system to perform self-regulation operation.
The utility model discloses a theory of operation does:
referring to fig. 4, in use, the high temperature and high pressure refrigerant of 70-80 degree flows into the middle gap channel (high temperature channel) H-G-F-E-D formed between the outer tube and the inner tube of the bushing from the point H of the first connection pressing plate, flows into the expansion valve through the channel ④ - ③ - ② - ① and the evaporator core flows into the compressor through the channel a-B-C-D-E-F-G-H-I, and circulates repeatedly, the high temperature and high pressure refrigerant of 70-80 degree flows into the inner tube when passing through the channel H-G-F-E-D is low temperature and low pressure refrigerant of 5-10 degree, the refrigerant of the two channels forms the secondary heat exchange of the air conditioning system at the section of the channel H-G-F-E-D (bushing section), so as to improve the cooling efficiency of the air conditioner.
In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.
Claims (9)
1. The utility model provides a secondary heat transfer device for vehicle air conditioner, includes high pressure connecting pipe (2) and low pressure connecting pipe (3), its characterized in that: the device also comprises a sleeve (1), a first connecting pressing plate (4) and a second connecting pressing plate (5);
the first connecting pressure plate (4) is provided with a high-temperature inlet (41) into which high-temperature and high-pressure refrigerant flows and a low-temperature outlet (42) from which low-temperature and low-pressure refrigerant flows;
the second connecting pressure plate (5) is provided with a low-temperature inlet (52) for low-temperature and low-pressure refrigerant to flow in and a high-temperature outlet (51) for high-temperature and high-pressure refrigerant to flow out;
the inner pipe (15) of the sleeve (1) is internally provided with a low-temperature channel (17) for flowing low-temperature and low-pressure refrigerant, and the low-temperature channel (17) is communicated with a low-temperature outlet part (42) of the first connecting pressing plate (4); a high-temperature channel (18) for flowing high-temperature and high-pressure refrigerant is arranged between the outer pipe (16) and the inner pipe (15) of the sleeve (1), and the high-temperature channel (18) is communicated with a high-temperature inlet part (41) of the first connecting pressing plate (4); the upper end of the sleeve (1) is provided with a connector part (11);
one end of the low-pressure connecting pipe (3) is communicated with a low-temperature inlet part (52) of the second connecting pressing plate (5), and the other end of the low-pressure connecting pipe (3) is communicated with the low-temperature channel (17) through an interface part (11);
one end of the high-pressure connecting pipe (2) is communicated with the high-temperature outlet part (51) of the second connecting pressing plate (5), and the other end of the high-pressure connecting pipe (2) is communicated with the high-temperature channel (18) through the connector part (11).
2. The secondary heat exchange device of claim 1, wherein: the high temperature channel (18) is composed of a plurality of slit channels surrounding the inner pipe (15).
3. The secondary heat exchange device of claim 1, wherein: the sleeve (1) is provided with a pipe clamp (12) at the position close to the upper end and the position close to the lower end.
4. The secondary heat exchange device of claim 3, wherein: the inner side of the pipe clamp (12) is provided with a rubber pad (13), and an inner liner and a shock pad (14) are arranged at the mounting lug of the pipe clamp (12).
5. The secondary heat exchange device of claim 1, wherein: and the low-temperature inlet (52) and the high-temperature outlet (51) of the second connecting pressing plate (5) are both provided with first O-shaped sealing rings.
6. The secondary heat exchange device of claim 1, wherein: and a high-pressure filling valve (21) is arranged on the high-pressure connecting pipe (2), and the high-pressure filling valve (21) is provided with a high-pressure valve core and a high-pressure valve cap.
7. The secondary heat exchange device of claim 1, wherein: the high-pressure connecting pipe (2) is provided with a sight glass seat (22), and the sight glass seat (22) is provided with a glass lens, a plastic gasket and a second O-shaped sealing ring which are fixed by screwing nuts.
8. The secondary heat exchange device of claim 7, wherein: the sight glass seat (22) is provided with a pressure switch (23).
9. The secondary heat exchange device of claim 1, wherein: the low-pressure connecting pipe (3) is provided with a low-pressure filling valve (31), and the low-pressure filling valve (31) is provided with a low-pressure valve core and a low-pressure valve cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921056854.6U CN210154134U (en) | 2019-07-08 | 2019-07-08 | Secondary heat exchange device for automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921056854.6U CN210154134U (en) | 2019-07-08 | 2019-07-08 | Secondary heat exchange device for automobile air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN210154134U true CN210154134U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921056854.6U Active CN210154134U (en) | 2019-07-08 | 2019-07-08 | Secondary heat exchange device for automobile air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771583A (en) * | 2021-08-21 | 2021-12-10 | 豫新汽车热管理科技有限公司 | Heat pump air conditioning system containing intermediate heat exchanger and integrating power battery heat management |
-
2019
- 2019-07-08 CN CN201921056854.6U patent/CN210154134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771583A (en) * | 2021-08-21 | 2021-12-10 | 豫新汽车热管理科技有限公司 | Heat pump air conditioning system containing intermediate heat exchanger and integrating power battery heat management |
| CN113771583B (en) * | 2021-08-21 | 2023-08-08 | 豫新汽车热管理科技有限公司 | Heat pump air conditioning system with intermediate heat exchanger for integrated power battery thermal management |
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