CN217235789U - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
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- CN217235789U CN217235789U CN202220034027.2U CN202220034027U CN217235789U CN 217235789 U CN217235789 U CN 217235789U CN 202220034027 U CN202220034027 U CN 202220034027U CN 217235789 U CN217235789 U CN 217235789U
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- 238000004378 air conditioning Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 description 115
- 230000001954 sterilising effect Effects 0.000 description 10
- 238000004659 sterilization and disinfection Methods 0.000 description 10
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The utility model relates to an air conditioning technology field specifically provides an indoor set of air conditioner aims at solving the current relatively poor problem of user experience when using of indoor set of air conditioner. The utility model provides an indoor set body of machine in air conditioning is formed with first installation position, and ion generator installs to first installation position, and ion generator includes: an ionizer body including a plurality of ion generating electrodes; an electrode protection member provided to the ionizer body and covering at least a part of the outer periphery of the plurality of ion generating electrodes; a light emitting member provided to the ionizer body; a soft light component which is arranged on the propagation path of partial light emitted by the light-emitting component, and the partial light is emitted after passing through the soft light component so as to: at least information related to the ionizer can be indicated by the portion of the light. The utility model provides an indoor unit of air conditioner can prolong the life of ion generating electrode to and can promote user experience.
Description
Technical Field
The utility model relates to an air conditioning technology field specifically provides an indoor unit of air conditioner.
Background
Air conditioners have become one of the indispensable household appliances of modern homes. In addition to the basic cooling/heating functions, some existing air conditioners also have a sterilization function, for example, by configuring an ultraviolet sterilization unit or an ionizer. However, in order to ensure the integrity of the appearance of the air conditioner, the ultraviolet sterilization unit or the ion generator is installed at a hidden position in the air conditioner, and a user cannot visually observe the specific installation position and know the running state of the air conditioner, so that the user experience is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned technical problem, promptly, solve the relatively poor problem of user experience when using in the current air conditioning.
In order to solve the technical problem, the utility model provides an indoor unit of an air conditioner, which comprises an indoor unit body and an ion generator, wherein the indoor unit body is provided with an air outlet, a first installation part is formed at the position of the indoor unit body close to the air outlet, the ion generator is installed at the first installation part,
the ionizer includes:
an ionizer body including a plurality of ion generating electrodes; an electrode protection member provided to the ion generator main body so as to cover at least a part of an outer periphery of the plurality of ion generating electrodes, as viewed in an extending direction of the ion generating electrodes; a light emitting member provided at a position of the ionizer body close to the ion generating electrode; and a soft light member disposed on a propagation path of a portion of the light emitted from the light emitting member, the portion of the light exiting through the soft light member so as to: at least information related to the ionizer can be indicated by the portion of the light rays.
The utility model provides an air-conditioning indoor unit, through set up luminous component and soft light component on the ion generator body, change at least partial light that luminous component sent into soft light with the help of soft light component, with the mode outgoing of soft light, thereby can indicate the information relevant with ion generator to the user, like the mounted position of instructing ion generator at the indoor unit body, working mode, running state etc. make the user can learn information such as the mounted position of this ion generator directly perceivedly, increase the degree of trust of user to the product; in addition, through setting up the electrode protection component, set up the electrode protection component in the ion generator body with the mode of a part of at least cladding a plurality of ion generating electrode's periphery, not only can reduce the exposure degree of ion generating electrode in the environment, in order to reduce the influence of environmental factor to ion generating electrode, and then prolong ion generating electrode's life, and be favorable to promoting the holistic pleasing to the eye degree of ion generator, thereby promote user experience, and be favorable to strengthening user's purchase intention, indirectly promote the sales volume of product.
The ionizer body includes a plurality of ion generating electrodes including at least one positive ion generating electrode and one negative ion generating electrode.
As the information related to the ionizer, there may be mounting position information of the ionizer on the indoor unit body, operation state information of the ionizer, operation mode information of the ionizer, and the like, wherein the operation state information and the operation mode information may be indicated by a degree of brightness, a frequency of change in brightness, and the like of light emitted from the light emitting member.
Further, the electrode protecting member covers at least a part of the outer periphery of the plurality of ion generating electrodes in many cases. For example, the electrode protection member may be an integrated structure, the electrode protection member of the integrated structure simultaneously covers the peripheries of the plurality of ion generating electrodes, for example, a plurality of through holes for the ion generating electrodes to pass through are formed on the electrode protection member of the block structure, most of each ion generating electrode is disposed in the corresponding through hole, and the end of the ion generating electrode protrudes from each through hole or is flush with the end face of the through hole. Alternatively, the electrode protection member may be a split structure including a plurality of sub-members, each of which can cover the outer periphery of one or more ion generating electrodes, for example, the sub-members are a plurality of cylindrical structures, the ion generating electrodes are disposed in the corresponding cylindrical structures, and the ends of the ion generating electrodes extend out of the cylindrical structures or are flush with the end surfaces of the cylindrical structures.
In the utility model, the light-emitting component and the electrode protection component can be independent components which are respectively connected to the ion generator body; or can be connected into an integral structure, such as a threaded connection, an adhesion connection and the like; or may be integrally formed.
Since the soft light member may be disposed in various ways, such as completely covering the light emitting member, or only on a propagation path of a part of the light, there is a case where a part of the light is directly emitted without passing through the soft light member, and it can be understood that at least a part of the light which does not pass through the soft light member also has a function of indicating information related to the ionizer.
With regard to the air conditioning indoor unit described above, in some possible embodiments, the light softening member is connected to the ionizer body through the electrode protecting member.
Thus, an arrangement of the light softening member and the electrode protecting member is provided. Through setting up like this, be about to the sheen component be connected to the electrode protection component, can make the holistic structure of ion generator simpler, still be favorable to promoting overall structure's intensity in addition.
It is understood that the soft light member and the electrode protection member may be independently connected to the ionizer body.
In some possible embodiments, the light softening member and the electrode protection member are integrally formed or connected as a single structure.
By so arranging, the processing and assembly of the components can be facilitated.
With regard to the above-described air conditioning indoor unit, in some possible embodiments, the electrode protecting member is integrally formed or connected with the ionizer body as a single structure.
The electrode protection component and the ion generator body are connected into an integrated structure and can be realized by any one or more modes of interference fit, clamping, insertion, screw connection, bonding and the like.
Through the arrangement, the ion generating electrode can be protected, and the processing of each component is convenient.
In some possible embodiments, the electrode protection member is made of a light-emitting material or a light-guiding material.
It can be understood that when the electrode protection member is made of a light-emitting material or a light-guiding material, the light emitted by the light-emitting member can be further processed, so that part of the light emitted by the light-emitting member becomes softer and more easily accepted by a user in the transmission process, i.e., the light-emitting member and the light-softening member can achieve the effect of softening light.
The light-emitting material may be an organic light-emitting material or an inorganic light-emitting material, such as plastic or glass with phosphor added. The light guide material may be an inorganic light guide material or an organic light guide material, such as a fiber optic material.
With regard to the air conditioning indoor unit described above, in some possible embodiments, the ionizer body is provided with a second mounting portion at which the electrode protecting member is provided.
Through setting up the second installation position, can make things convenient for being connected of electrode protection component and ion generator body, also make things convenient for the location of electrode protection component simultaneously.
The second mounting portion can be implemented in various manners, such as a boss structure, a groove structure, etc., which are formed on the ionizer body, wherein the boss structure is preferably a boss structure with a hollow interior. In addition, the part of the boss structure corresponding to the side wall of the boss structure can be vertical or inclined relative to the surface of the ion generator body.
In some possible embodiments, the second mounting portion is a boss structure formed on the ionizer body.
In this way, an implementation of the second mounting location is provided. A boss structure is formed on the ion generator body to construct a second installation part, so that the electrode protection component can be positioned conveniently.
With regard to the above-mentioned air conditioning indoor unit, in some feasible embodiments, the ionizer body includes a housing, the housing is formed with a first connecting structure, the first mounting portion is formed with a second connecting structure, and the ionizer body is connected to the first mounting portion through the cooperation of the first connecting structure and the second connecting structure.
In some possible embodiments, the first connecting structure is a protrusion formed on the casing, and the second connecting structure is a groove adapted to the protrusion; or
The first connecting structure is a groove formed in the shell, and the second connecting structure is a protrusion matched with the groove.
It will be appreciated that the number of projections and recesses may be one or more. Specifically, the first connecting structure may be a groove, and the second connecting structure may be a protrusion or a plurality of discontinuous protrusions, and the plurality of discontinuous protrusions are spaced apart along the extending direction of the groove. Alternatively, the first connecting structure may be a plurality of grooves arranged at intervals, each groove is matched with one protrusion or a plurality of discontinuous protrusions (second connecting structure), and the interval direction of the plurality of grooves is perpendicular to the extending direction of the grooves. The same applies to the case where the first connecting structure is a protrusion.
With regard to the air conditioning indoor unit described above, in some possible embodiments, the ion generator body includes a first ion generating electrode and a second ion generating electrode, the first ion generating electrode and the second ion generating electrode are disposed at a distance, and the light emitting member is located between the first ion generating electrode and the second ion generating electrode.
Through setting up like this, can avoid luminous component's light to penetrate people's eye directly to a certain extent, help reducing the light intensity, promote user's visual perception.
It is to be understood that the light emitting member may be disposed at any position near the first and second ion generating electrodes.
With the air conditioning indoor unit described above, in some possible embodiments, at least a portion of the light emitting member protrudes from an outer surface of the ionizer body.
Thus, an arrangement of the light emitting member is provided. By this arrangement, the light emitting member favorably exhibits an indicating function.
It is understood that the light emitting member may be hidden inside the ionizer body in a state where the light can be smoothly emitted.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention, in which an installation position of an ionizer is shown;
fig. 2 is a schematic structural diagram of an ionizer provided by an embodiment of the present invention;
list of reference numerals:
1. an indoor unit body; 2. an ion generator; 20. a housing; 200. a second mounting location; 201. a first connecting structure; 202. an end face; 21. an ion generating electrode; 22. a light emitting member; 23. an electrode protection member.
Detailed Description
First, it should be noted that the following embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Next, in order to better explain the present invention, numerous specific details are set forth in the following detailed description. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details.
In the description of the present invention, the terms "inner", "outer", "top", "bottom", etc. indicating directions or positional relationships are based on directions or positional relationships in actual use, which are merely for convenience of description, and do not indicate or imply that the apparatus to be protected must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, "not marked" in the present invention means that the corresponding structure is not shown in the drawings, but is indicated in the drawings.
In order to better understand the technical solution of the present invention, the structure and sterilization principle of the ionizer will be explained first.
The utility model provides an ion generator is positive anion generator, as the name implies can produce positive ion and anion simultaneously. The positive and negative ion generator has a positive ion generating electrode and a negative ion generating electrode, the positive ion generating electrode is connected with a direct current positive high voltage, the negative ion generating electrode is connected with a direct current negative high voltage, the electrodes usually adopt tungsten needles or graphite electrodes, and the following embodiments take the graphite electrode as an example. When the two electrodes are connected with electricity, corona is generated between the two electrodes, outer layer electrons of certain atoms in the air are separated from the orbit to become free electrons under the action of the corona, and the atoms losing the electrons are in positive polarity; the free electrons are negative-electrode, and since the separated free electrons cannot exist in the space independently for a long time, the separated free electrons are combined with other nonpolar molecules in the air, so that the part of gas molecules obtaining the electrons are negative-electrode (for example, negative oxygen ions are generated), and the process is called air ionization. When negative ions in the air are combined with microbes such as bacteria and viruses in the air, molecular protein structures of the microbes such as the bacteria and the viruses can be damaged, structural change or energy transfer is generated, and therefore the microbes such as the bacteria and the viruses die, and the sterilization effect is achieved. Therefore, the ion sterilization has a better sterilization effect than the ultraviolet sterilization because the positive and negative ions generated by the ion generator can be diffused to any indoor area along with the air outlet of the air conditioner, thereby achieving the indoor omni-directional sterilization.
The ion generator that traditional air conditioning indoor set disposed generally sets up in the air outlet of indoor set, receives the influence of air outlet department structure, and the user can't observe ion generator's position very conveniently or very directly perceivedly, and also can't learn ion generator's running state in ion generator operation process, to some users, probably can doubtful to the normal operating of the function of disinfecting of air conditioning indoor set, is unfavorable for the user to use the product with putting one's mind on, and then influences user experience.
Based on this, the utility model provides a can carry out the air conditioning indoor set that real-time instructed to the operating position and the operating condition of ion generator simultaneously, help the user to use the air conditioner product with great care.
The present invention provides an air conditioning indoor unit, which will be described below with reference to fig. 1 and 2. Fig. 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention, in which an installation position of an ionizer is shown; fig. 2 is a schematic structural diagram of an ionizer according to an embodiment of the present invention.
As shown in fig. 1, an air conditioning indoor unit according to an embodiment of the present invention includes an indoor unit body 1 and an attachment member (not shown) such as a mounting bracket, etc., connected to the indoor unit body 1. The indoor unit body 1 includes a base (not shown), i.e., a frame, in which a fan, a heat exchanger, an air duct, and the like are disposed. The air inlet of the air channel is formed at the top of the base body, and a grid and a filter screen are arranged at the air inlet and used for filtering air entering the air channel. The air outlet of the air duct is formed at the bottom of the base body, an air deflector is arranged at the air outlet, and the air outlet quantity and the air outlet direction of the indoor unit can be adjusted by changing the extension direction of the air deflector. The right side wall of the base body corresponding to the air outlet is provided with a first installation part, the ion generator 2 is installed on the first installation part, the ion generator 2 can simultaneously generate positive ions and negative ions, and the positive ions and the negative ions can be dissipated to all places indoors along with air outlet of the indoor unit, so that all-round sterilization of indoor air is realized.
As shown in fig. 2, the ionizer in this embodiment includes an ionizer body including a housing 20, an ion generating module provided in the housing 20, and a light emitting member 22 and an electrode protecting member 23 provided in the housing 20. The ion generating module includes a high voltage power converting part (not shown) and an ion generating electrode 21, the high voltage power converting part is used for converting a low voltage into an alternating high voltage through a pulse oscillation circuit, an overvoltage current limiting circuit, a high-low voltage isolating circuit and other circuits after an input direct current or alternating current is processed by an EMI (Electromagnetic Interference) processing circuit and a lightning stroke protection circuit, then pure direct current negative high voltage and direct current positive high voltage are obtained after rectification and filtering, the direct current negative high voltage and the direct current positive high voltage are connected to the ion generating electrode 21 of the ion generator through an electric wire, and the position of the ion generating electrode 21 is the emission end of the ion generator. The ion generating electrode 21 includes a positive ion generating electrode and a negative ion generating electrode, wherein the number of the positive and negative ion generating electrodes may be the same or different, and when the number of the positive and negative ion generating electrodes is different, it is preferable that the number of the negative ion generating electrodes is greater than the number of the positive ion generating electrodes. As shown in fig. 2, the ion generating electrode in the present embodiment includes a first ion generating electrode (negative ion generating electrode) and a second ion generating electrode (positive ion generating electrode), both of which are graphite electrodes, i.e., carbon brushes.
When the ion generator works, the positive ion generating electrode is connected with positive high-voltage electricity, the negative ion generating electrode is connected with negative high-voltage electricity, the high-voltage electricity generates corona between the tips of the positive electrode and the negative electrode, so that air is ionized, and the negative ion generating electrode emits a large amount of electrons (e-) at high speed, and the electrons cannot exist in the air for a long time and can be immediately absorbed by oxygen molecules (O-) in the air 2 ) Trapping to generate air negative oxygen ions, so-called negative ions.
The high voltage power conversion part and other electrical components in the embodiment of the present invention are integrated on a circuit board (not shown), and the circuit board is fixed in a containing cavity (not shown) formed by the housing 20.
In order to protect the ion generating electrode 21 and to make the appearance of the ion generator more flat and beautiful, the housing 20 in the embodiment of the present invention is provided with an electrode protecting member 23. In order to avoid discomfort to the user caused by the direct radiation of the light emitted from the light emitting member 22, a soft light member is further disposed on the propagation path of a portion of the light emitted from the light emitting member 22 in this embodiment, and the portion of the light can be converted into soft and more acceptable soft light after being emitted from the soft light member, so as to indicate the installation position, the operation state, and the like of the ionizer.
The soft light component and the electrode protection component 23 in this embodiment are integrally formed, that is, the soft light component playing a role of soft light is used as a part of the electrode protection component 23, so that not only can the ion generating electrode and the soft light be protected, but also the installation and the processing of the component are convenient.
As shown in fig. 2, a second mounting portion 200 is formed on an end surface 202 of the casing 20 facing the outlet direction of the indoor unit main body in a protruding manner, and the second mounting portion 200 has a boss structure. The boss structure is formed with U type blocky structure along the same direction of its own outstanding direction, and light-emitting component 22 is located the semi-enclosed space that U type blocky structure and boss structure's surface enclose and establish formation, and like this, the part that U type blocky structure and light-emitting component 22 correspond can carry out the sheen processing to the light that light-emitting component 22 sent, realizes the effect of sheen component. Through holes (not marked) are formed in the U-shaped block structure near the two ends, and the ion generating electrode 21 in a strip structure passes through the through holes and extends out of the surface of the U-shaped block structure by about 3mm, so that most parts of the ion generating electrode 21 are covered in the U-shaped block structure. This reduces the degree of exposure of the ion generating electrode 21, thereby protecting the ion generating electrode 21 and providing a more beautiful appearance.
In this embodiment, the electrode protection member 23 having a U-shaped block structure is integrally connected to the case 20 by adhesion. It will be appreciated that the electrode protecting member 23 may be connected to the housing 20 by other connection means. Further, the ion generating electrode 21 may be further wrapped with an insulating film and placed in the electrode protecting member 23.
In this embodiment, the ion generating electrode 21 includes a first ion generating electrode and a second ion generating electrode, the light emitting member 22 is mounted on the housing 20 at a position corresponding to a position between the first ion generating electrode and the second ion generating electrode, a portion of the light emitting member 22 protrudes out of the outer surface of the boss structure, a portion of light emitted by the light emitting member 22 can irradiate the electrode protecting member 23, and the electrode protecting member 23 is made of a light emitting material or a light guiding material.
In order to enhance the installation stability of the ionizer, a first installation portion (not labeled) is formed at a position of the indoor unit body near the air outlet, and the ionizer is installed at the first installation portion. Specifically, as shown in fig. 1 and 2, a first connecting structure 201 is formed on a side wall of a housing 20 of the ion generator, the first connecting structure 201 is specifically two protrusions arranged at intervals along a vertical direction, correspondingly, a second connecting structure (not shown) is formed at a first installation position of the indoor unit body, the second connecting structure is two grooves adapted to the two protrusions, and during installation, the protrusions are inserted into the grooves, so that not only can the connection stability of the ion generator be improved, but also the ion generator can be guided through the cooperation of the protrusions and the grooves, and therefore, the installation process of the ion generator is faster and more convenient.
The ion generator configured in the air conditioning indoor unit provided by the embodiment can at least indicate the installation position of the ion generator. When the ion generator starts to work, the light-emitting component is controlled to light, and when the ion generator stops running or is turned off due to faults, the light-emitting component is turned off, so that a user can know whether the ion generator works normally or not while knowing the installation position of the ion generator. It will be appreciated that the light emitting members may also be illuminated individually if desired.
So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (10)
1. An indoor unit of an air conditioner is characterized by comprising an indoor unit body and an ion generator, wherein the indoor unit body is provided with an air outlet, a first installation part is formed at the position, close to the air outlet, of the indoor unit body, the ion generator is installed at the first installation part,
the ionizer includes:
an ionizer body including a plurality of ion generating electrodes;
an electrode protection member provided to the ionizer body so as to cover at least a part of an outer periphery of the plurality of ion generating electrodes, as viewed in an extending direction of the ion generating electrodes;
a light emitting member provided at a position of the ionizer body near the ion generating electrode; and
a soft light component which is arranged on the propagation path of partial light emitted by the light-emitting component, and the partial light is emitted after passing through the soft light component so as to:
at least information related to the ionizer can be indicated by the portion of the light rays.
2. The indoor unit of an air conditioner according to claim 1, wherein the soft light member is connected to the ionizer body through the electrode protecting member.
3. An indoor unit of an air conditioner according to claim 2, wherein the soft light member and the electrode protecting member are integrally formed or connected as an integral structure.
4. The indoor unit of an air conditioner according to claim 3, wherein the electrode protecting member is integrally formed or connected to the ionizer body as an integral structure.
5. An indoor unit of an air conditioner according to claim 4, wherein the electrode protecting member is made of a light-emitting material or a light-guiding material.
6. The indoor unit of an air conditioner according to claim 2, wherein the ionizer body is provided with a second mounting portion at which the electrode protecting member is provided.
7. The indoor unit of claim 6, wherein the second installation portion is a boss structure formed at the ionizer body.
8. The indoor unit of claim 1, wherein the ionizer body comprises a case formed with a first coupling structure, the first mounting portion is formed with a second coupling structure, and the ionizer body is coupled to the first mounting portion by fitting of the first coupling structure and the second coupling structure.
9. An indoor unit of an air conditioner according to claim 8, wherein the first connecting structure is a projection formed on the casing, and the second connecting structure is a groove fitted to the projection; or
The first connecting structure is a groove formed in the shell, and the second connecting structure is a protrusion matched with the groove.
10. The indoor unit of an air conditioner according to any one of claims 1 to 9, wherein the ion generator body includes a first ion generating electrode and a second ion generating electrode, the first ion generating electrode and the second ion generating electrode being disposed at an interval, and the light emitting member is located between the first ion generating electrode and the second ion generating electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220034027.2U CN217235789U (en) | 2022-01-07 | 2022-01-07 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220034027.2U CN217235789U (en) | 2022-01-07 | 2022-01-07 | Indoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217235789U true CN217235789U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220034027.2U Active CN217235789U (en) | 2022-01-07 | 2022-01-07 | Indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217235789U (en) |
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2022
- 2022-01-07 CN CN202220034027.2U patent/CN217235789U/en active Active
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