CN220818017U - Circuit breaking device and air conditioner - Google Patents
Circuit breaking device and air conditioner Download PDFInfo
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- CN220818017U CN220818017U CN202321907720.7U CN202321907720U CN220818017U CN 220818017 U CN220818017 U CN 220818017U CN 202321907720 U CN202321907720 U CN 202321907720U CN 220818017 U CN220818017 U CN 220818017U
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- power supply
- main control
- circuit board
- control circuit
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims description 6
- 239000003570 air Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The utility model relates to the technical field of heat pumps, in particular to a circuit breaking device and an air conditioner. The circuit breaking device is applied to an air conditioner, and the air conditioner comprises a shell and a main control circuit board, wherein the main control circuit board is connected with a power supply; the circuit breaking device is connected with the shell; the circuit breaking device is used for breaking connection between the main control circuit board and the power supply in a state that water is arranged at the bottom of the shell. The utility model provides a circuit breaking device and an air conditioner, which are used for solving the technical problem of electric leakage of a shell caused by the fact that water at the bottom of the shell of the air conditioner contacts with a charged wire and a charged electronic component at the bottom of the shell in the prior art.
Description
Technical Field
The utility model relates to the technical field of heat pumps, in particular to a circuit breaking device and an air conditioner.
Background
An air conditioner is an apparatus for adjusting and controlling parameters such as temperature, humidity, and flow rate of ambient air in a building or structure by manual means.
Taking an indoor unit of an air conditioner as an example, the indoor unit can comprise a shell, an evaporator, a water receiving disc and an indoor fan, wherein the evaporator, the water receiving disc and the indoor fan are positioned in the shell, and the water receiving disc is positioned below the evaporator and can receive condensed water falling from the evaporator.
In the prior art, although the water collector can accept the condensed water falling from the evaporator, water still exists at the bottom of the shell, for example, when the wind speed of the indoor fan is too high, the condensed water on the surface of the evaporator can be splashed to the bottom of the shell under the action of the indoor fan, however, a charged wire and a plurality of charged electronic components are arranged at the bottom of the shell, and when the splashed condensed water contacts the charged wire and the charged electronic components at the bottom of the shell, the shell is easy to leak, so that certain potential safety hazards exist.
Disclosure of utility model
The utility model provides a circuit breaking device and an air conditioner, which are used for solving the technical problem of electric leakage of a shell caused by the fact that water at the bottom of the shell of the air conditioner contacts with a charged wire and a charged electronic component at the bottom of the shell in the prior art.
The utility model provides a circuit breaking device which is applied to an air conditioner, wherein the air conditioner comprises a shell and a main control circuit board, and the main control circuit board is connected with a power supply; the circuit breaking device is connected with the shell; the circuit breaking device is used for breaking connection between the main control circuit board and the power supply in a state that water is arranged at the bottom of the shell.
According to one embodiment of the utility model, a circuit breaking device comprises a drive unit and a breaking unit; the driving unit is positioned at the bottom of the shell and is connected with the inner wall of the shell; the disconnecting unit is connected with the power supply and the main control circuit board; the drive unit is used for driving the disconnection unit to move in a state that water at the bottom of the shell contacts the drive unit so as to disconnect the connection between the main control circuit board and the power supply through the disconnection unit.
According to one embodiment of the utility model, the drive unit is a structural member made of a water-swellable material.
According to one embodiment of the utility model, a fuse is connected between the power supply and the main control circuit board; the disconnection unit is used for enabling the main control circuit board to be short-circuited in a state that water at the bottom of the shell is in contact with the driving unit.
According to one embodiment of the utility model, the breaking unit comprises a first conductive part and a second conductive part; the first conductive part is connected with the live wire of the power supply and the free end of the driving unit; the second conductive part is connected with a zero line of the power supply; the driving unit is used for driving the first conductive part to move towards the second conductive part in a state that water at the bottom of the shell is in contact with the driving unit so as to be connected with the second conductive part.
The present utility model also provides an air conditioner, comprising: a housing; the main control circuit board is connected with the shell and the power supply; the circuit breaking device of the above embodiment is connected with the casing and is used for breaking the connection between the main control circuit board and the power supply in the state that water is arranged at the bottom of the casing.
According to one embodiment of the utility model, a circuit breaking device comprises a drive unit and a breaking unit; the driving unit is positioned at the bottom of the shell and is connected with the inner wall of the shell; the disconnecting unit is connected with the power supply and the main control circuit board; the drive unit is used for driving the disconnection unit to move in a state that water at the bottom of the shell contacts the drive unit so as to disconnect the connection between the main control circuit board and the power supply through the disconnection unit.
According to one embodiment of the utility model, the main control circuit board is connected with a controller, and the controller is used for disconnecting the main control circuit board from the power supply in a state that water is arranged at the bottom of the machine shell.
According to one embodiment of the present utility model, the breaking unit includes a third conductive portion and a fourth conductive portion; the third conductive part is connected with a live wire of a power supply; the fourth conductive part is connected with a zero line of a power supply; the driving unit is used for driving the third conductive part to move towards the fourth conductive part in a state that water at the bottom of the shell is in contact with the driving unit so as to be connected with the fourth conductive part; the controller is used for disconnecting the connection between the main control circuit board and the power supply in a state that the third conductive part is connected with the fourth conductive part.
According to one embodiment of the utility model, the controller is connected with the warning device, and the controller is used for controlling the warning device to send out warning when the third conductive part is connected with the fourth conductive part.
According to the circuit breaking device and the air conditioner, the circuit breaking device can break the connection between the main control circuit board and the power supply in the state that water is arranged at the bottom of the shell, so that the wires and a plurality of electronic components at the bottom of the shell are uncharged, and even if condensed water at the bottom of the shell contacts the wires and the electronic components, the electric leakage of the shell is avoided, so that the safety can be improved, unnecessary potential safety hazards are avoided, and the technical problem of shell electric leakage caused by the fact that water at the bottom of the shell of the air conditioner contacts the charged wires and the charged electronic components at the bottom of the shell in the prior art can be solved.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an air conditioner (indoor unit) of the present utility model.
Fig. 2 is a schematic diagram of the circuit interrupting device of the present utility model.
Fig. 3 is another schematic diagram of the circuit interrupting device of the present utility model.
Fig. 4 is a schematic diagram of one embodiment of the circuit interrupting device of the present utility model.
Reference numerals:
100. A circuit breaking device; 110. a driving unit; 120. a disconnection unit; 121. a first conductive portion; 122. a second conductive portion; 123. a bracket; 200. a housing; 300. a main control circuit board; 400. a power supply; 500. and a fuse.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present embodiment, the meaning of "plurality" is at least two, for example, two, three, etc., unless explicitly defined otherwise.
In this embodiment, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present embodiment can be understood by those of ordinary skill in the art according to the specific circumstances.
In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Fig. 1 to 4 show a circuit breaking device 100 and an air conditioner provided by the present utility model, and as can be seen from the figures, the circuit breaking device 100 of the present utility model is applied to an air conditioner, the air conditioner includes a casing 200 and a main control circuit board 300, and the main control circuit board 300 is connected with a power supply 400; the circuit breaking device 100 is connected with the case 200; the circuit breaking device 100 is used for breaking the connection between the main control circuit board 300 and the power supply 400 in a state that water is present at the bottom of the cabinet 200.
In the embodiment, in the state that the bottom of the casing 200 has water, the circuit breaking device 100 can break the connection between the main control circuit board 300 and the power supply 400, so that the wires and a plurality of electronic components at the bottom of the casing 200 are not electrified, and even if the condensed water at the bottom of the casing 200 contacts the wires and the electronic components, the leakage of the casing 200 is not caused, thereby improving the safety and avoiding unnecessary potential safety hazards; the problem of the prior art that the water at the bottom of the casing 200 of the air conditioner contacts the electrified wires and electrified electronic components at the bottom of the casing 200, which results in the leakage of the casing 200, can be solved.
In the present embodiment, the casing 200 may be an indoor unit casing 200, an outdoor unit casing 200, or other suitable types; the main control circuit board 300 may be disposed in the casing 200; the power source 400 may be alternating current.
As shown in fig. 2 to 4, the circuit breaking apparatus 100 may include a driving unit 110 and a breaking unit 120 according to an embodiment of the present utility model; the driving unit 110 is positioned at the bottom of the inside of the cabinet 200 and is connected to the inner wall of the cabinet 200; the disconnection unit 120 connects the power supply 400 and the main control circuit board 300; wherein, the driving unit 110 is used to drive the disconnection unit 120 to move in a state that water at the bottom of the cabinet 200 is in contact therewith, so as to disconnect the connection between the main control circuit board 300 and the power supply 400 through the disconnection unit 120.
In specific implementation, for example, when the wind speed of the indoor fan is too high, under the action of the indoor fan, the condensed water on the surface of the evaporator is splashed to the bottom of the casing 200, and after the driving unit 110 contacts with the condensed water, the breaking unit 120 can be driven to move, and the connection between the main control circuit board 300 and the power supply 400 is broken through the breaking unit 120.
In this embodiment, the drive unit 110 is a structural member made of a water-swellable material. For example, drive unit 110 may be conventional water-swellable cotton.
As shown in fig. 4, a fuse 500 is connected between the power supply 400 and the main control circuit board 300 according to an embodiment of the present utility model; the disconnection unit 120 serves to short-circuit the main control circuit board 300 in a state that water at the bottom of the cabinet 200 is in contact with the driving unit 110.
In specific implementation, for example, when the wind speed of the indoor fan is too high, under the action of the indoor fan, condensed water on the surface of the evaporator is splashed to the bottom of the casing 200, water at the bottom of the casing 200 is contacted with the driving unit 110, the driving unit 110 expands after the contact, the driving unit 110 can drive (or can be triggered) the disconnecting unit 120 to move along with the increase of the volume of the driving unit 110, the main control circuit board 300 is shorted through the disconnecting unit 120, after the main control circuit board 300 (or can be triggered), the power supply 400 is shorted, as the power supply 400 is not loaded, the resistance in the circuit is smaller, and the current in the circuit is larger, according to the characteristics of the fuse 500, when the current flowing through the fuse 500 abnormally rises to a certain height and heat, the fuse 500 is fused, so that the circuit is disconnected, that is, the fuse 500 is fused after the short circuit, and the main control circuit board 300 and the power supply 400 are disconnected; therefore, even if the condensed water at the bottom of the casing 200 contacts the lead wires and the electronic components, the leakage of the casing 200 is not caused, so that the safety is improved, and unnecessary potential safety hazards are avoided.
In this embodiment, the fuse 500 may be a resettable fuse (or resettable fuse).
In particular, through the above structure arrangement, after the water at the bottom of the casing 200 is cleaned, the power supply 400 and the main control circuit board 300 do not need to be manually connected, so that the maintenance is convenient.
As shown in fig. 2 to 4, the breaking unit 120 may include a first conductive part 121 and a second conductive part 122 according to one embodiment of the present utility model; the first conductive part 121 is connected with the live wire of the power supply 400 and one end of the free end of the driving unit 110, which is not connected with the bottom wall of the casing 200; the second conductive part 122 is connected with a zero line of the power supply 400; wherein the driving unit 110 is used for driving the first conductive part 121 to move toward the second conductive part 122 in a state that water at the bottom of the cabinet 200 is in contact with the driving unit 110 to connect the second conductive part 122.
In this embodiment, the air conditioner may include an electric cabinet provided with a terminal block having a first terminal and a second terminal insulated from each other, the first terminal being connected to a live wire of the power supply 400, the second terminal being connected to a neutral wire of the power supply 400; the first conductive part 121 may be connected to an upper end of the driving unit 110, and the first conductive part 121 is connected to a fire wire of the power supply 400 through a first terminal; the second conductive part 122 is located above the first conductive part 121, for example, the second conductive part 122 is located above the first conductive part 121, is connected to the bottom of the cabinet 200 through the bracket 123, is located above the first conductive part 121, and the second conductive part 122 is connected to the neutral line of the power supply 400 through the second terminal.
In particular, in a normal state, a gap is formed between the first conductive part 121 and the second conductive part 122, that is, in a state where there is no water at the bottom of the casing 200, the first conductive part 121 and the second conductive part 122 are not connected; for example, when the wind speed of the indoor fan is too high, under the action of the indoor fan, condensed water on the surface of the evaporator is splashed to the bottom of the casing 200, water at the bottom of the casing 200 is contacted with the driving unit 110, the driving unit 110 expands after the contact, and as the volume of the driving unit 110 increases, the expansion of the driving unit 110 can drive the first conductive part 121 to move towards the second conductive part 122 and move to abut against the second conductive part 122, so that the main control circuit board 300 is short-circuited, that is, the breaking unit 120 is arranged in parallel with the main control circuit board 300, after the main control circuit board 300 (or a load) is short-circuited, the power supply 400 does not pass through the load, so that the resistance in the circuit is small, the current in the circuit is large, and according to the characteristics of the fuse 500, when the current flowing through the fuse 500 abnormally rises to a certain height and heat, the fuse 500 is fused, so that the circuit is broken, that is, if the fuse 500 is fused, the main control circuit board 300 is disconnected from the power supply 400; therefore, even if the condensed water at the bottom of the casing 200 contacts the lead wires and the electronic components, the leakage of the casing 200 is not caused, so that the safety is improved, and unnecessary potential safety hazards are avoided.
The utility model also provides an air conditioner, which comprises a shell 200, a main control circuit board 300 and the circuit breaking device 100 in the above embodiment, wherein the main control circuit board 300 is connected with the shell 200 and a power supply 400; the circuit breaking device 100 is connected to the cabinet 200 for breaking the connection between the main control circuit board 300 and the power supply 400 in a state that water is present at the bottom of the cabinet 200. The specific structure, the working principle and the beneficial effects of the circuit breaking device 100 are the same as those of the above embodiment, and are not described herein again.
According to one embodiment of the present utility model, the circuit breaking device 100 includes a driving unit 110 and a breaking unit 120; the driving unit 110 is positioned at the bottom of the inside of the cabinet 200 and is connected to the inner wall of the cabinet 200; the disconnection unit 120 connects the power supply 400 and the main control circuit board 300; wherein, the driving unit 110 is used to drive the disconnection unit 120 to move in a state that water at the bottom of the cabinet 200 is in contact therewith, so as to disconnect the connection between the main control circuit board 300 and the power supply 400 through the disconnection unit 120.
In particular, for example, when the wind speed of the indoor fan is too high, under the action of the indoor fan, the condensed water on the surface of the evaporator is splashed to the bottom of the casing 200, the water at the bottom of the casing 200 is contacted with the driving unit 110, and after the driving unit 110 contacts with the condensed water, the breaking unit 120 can be driven to move, so that the connection between the main control circuit board 300 and the power supply 400 is broken through the breaking unit 120.
In this embodiment, the drive unit 110 is a structural member made of a water-swellable material. For example, drive unit 110 may be conventional water-swellable cotton.
According to an embodiment of the present utility model, the main control circuit board 300 is connected to a controller for disconnecting the main control circuit board 300 from the power supply 400 in a state that the bottom of the cabinet 200 has water.
In the present embodiment, the breaking unit 120 includes a third conductive part and a fourth conductive part; the third conductive part is connected with a live wire of the power supply 400; the fourth conductive part is connected with a zero line of the power supply 400; the driving unit 110 is used for driving the third conductive part to move towards the fourth conductive part in a state that water at the bottom of the cabinet 200 is in contact with the driving unit 110 so as to be connected with the fourth conductive part; the controller is used for disconnecting the main control circuit board 300 from the power supply 400 in a state that the third conductive part is connected with the fourth conductive part.
In the implementation, after the third conductive portion and the fourth conductive portion are connected, the controller can receive the connection signal, so that the connection between the main control circuit board 300 and the power supply 400 is disconnected by the controller.
According to one embodiment of the present utility model, the controller is connected to the warning device, and is used for controlling the warning device to send out a warning alert in a state that the third conductive part is connected to the fourth conductive part, so as to alert people that water is present at the bottom of the casing 200.
In one possible embodiment, the warning device may be a buzzer.
In another possible embodiment, the warning device may be a light emitting diode.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "manner," "particular modes," or "some modes," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or mode is included in at least one embodiment or mode of the embodiments of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or manner. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or ways. Furthermore, various embodiments or modes and features of various embodiments or modes described in this specification can be combined and combined by those skilled in the art without mutual conflict.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The circuit breaking device is characterized by being applied to an air conditioner, wherein the air conditioner comprises a shell (200) and a main control circuit board (300), and the main control circuit board (300) is connected with a power supply (400);
The circuit breaking device is connected with the shell (200);
The circuit breaking device is used for breaking the connection between the main control circuit board (300) and the power supply (400) in a state that water is arranged at the bottom of the casing (200).
2. The circuit breaking device according to claim 1, characterized in that it comprises a drive unit (110) and a breaking unit (120);
The driving unit (110) is positioned at the bottom of the inside of the shell (200) and is connected with the inner wall of the shell (200);
The disconnecting unit (120) is connected with the power supply (400) and the main control circuit board (300);
The driving unit (110) is used for driving the disconnecting unit (120) to move in a state that water at the bottom of the casing (200) is contacted with the water, so that the connection between the main control circuit board (300) and the power supply (400) is disconnected through the disconnecting unit (120).
3. The circuit breaking device according to claim 2, characterized in that the drive unit (110) is a structural member made of a water-swellable material.
4. A circuit breaking device according to claim 2 or 3, characterized in that,
A fuse (500) is connected between the power supply (400) and the main control circuit board (300);
The disconnection unit (120) is used for short-circuiting the main control circuit board (300) in a state that water at the bottom of the casing (200) is in contact with the driving unit (110).
5. The circuit breaking device according to claim 4, characterized in that the breaking unit (120) comprises a first conductive part (121) and a second conductive part (122);
The first conductive part (121) is connected with a live wire of the power supply (400) and the free end of the driving unit (110);
The second conductive part (122) is connected with a zero line of the power supply (400);
Wherein the driving unit (110) is configured to drive the first conductive part (121) to move toward the second conductive part (122) in a state that water at the bottom of the casing (200) is in contact with the driving unit (110) so as to connect the second conductive part (122).
6. An air conditioner, comprising:
A housing (200);
a main control circuit board (300) connected with the casing (200) and the power supply (400);
A circuit breaking device according to any one of claims 1 to 3, connected to the cabinet (200) for breaking the connection between the main control circuit board (300) and the power supply (400) in a state where water is present at the bottom of the cabinet (200).
7. The air conditioner according to claim 6, wherein,
The circuit breaking device comprises a driving unit (110) and a breaking unit (120);
The driving unit (110) is positioned at the bottom of the inside of the shell (200) and is connected with the inner wall of the shell (200);
The disconnecting unit (120) is connected with the power supply (400) and the main control circuit board (300);
The driving unit (110) is used for driving the disconnecting unit (120) to move in a state that water at the bottom of the casing (200) is contacted with the water, so that the connection between the main control circuit board (300) and the power supply (400) is disconnected through the disconnecting unit (120).
8. The air conditioner of claim 7, wherein the main control circuit board (300) is connected with a controller for disconnecting the main control circuit board (300) from the power supply (400) in a state that the bottom of the cabinet (200) has water.
9. The air conditioner of claim 8, wherein the air conditioner further comprises a fan,
The breaking unit (120) includes a third conductive portion and a fourth conductive portion;
the third conductive part is connected with a live wire of the power supply (400);
the fourth conductive part is connected with a zero line of the power supply (400);
The driving unit (110) is used for driving the third conductive part to move towards the fourth conductive part in a state that water at the bottom of the shell (200) is in contact with the driving unit (110) so as to be connected with the fourth conductive part;
The controller is used for disconnecting the connection between the main control circuit board (300) and the power supply (400) in a state that the third conductive part is connected with the fourth conductive part.
10. The air conditioner according to claim 9, wherein the controller is connected with a warning device, and the controller is configured to control the warning device to issue a warning alert in a state that the third conductive portion is connected with the fourth conductive portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907720.7U CN220818017U (en) | 2023-07-19 | 2023-07-19 | Circuit breaking device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907720.7U CN220818017U (en) | 2023-07-19 | 2023-07-19 | Circuit breaking device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220818017U true CN220818017U (en) | 2024-04-19 |
Family
ID=90677759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321907720.7U Active CN220818017U (en) | 2023-07-19 | 2023-07-19 | Circuit breaking device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220818017U (en) |
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2023
- 2023-07-19 CN CN202321907720.7U patent/CN220818017U/en active Active
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