Air conditioner

Abstract

The air conditioner comprises an air conditioner shell and an electric control box, a mounting cavity used for mounting a ventilation heat exchange component is defined in the air conditioner shell, the electric control box is arranged on the side face of the air conditioner shell and comprises a circuit board and at least one access cover, the circuit board is vertically arranged, one side in the thickness direction of the circuit board faces the mounting cavity, and the other side in the thickness direction of the circuit board faces the access cover. The access cover is detachably arranged on one side, deviating from the mounting cavity, of the circuit board in the thickness direction of the circuit board; wherein a matching structure is arranged at the upper end of the access cover, the air conditioner comprises a limiting structure, the limiting structure is detachably matched with the matching structure, and the limiting structure limits the matching structure to move downwards during matching. As long as the limiting structure is still in the matched state with the matching structure, the limiting structure can prevent the access cover from moving downwards, so that the access cover is controllable in disassembly, the situation that the access cover falls down without being controlled in the disassembly process can be improved, and the situation that the access cover falls to hurt people or is damaged is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment, and in particular to an air conditioner. Background Technology

[0002] The electrical control box is the control center of an air conditioner. When repairing or replacing the electrical control box, it is necessary to remove the casing or access cover. However, in related technologies, during the removal of the casing or access cover, the operator must maintain support while removing it; otherwise, it may fall and cause injury to objects or people. The disassembly operation is quite difficult and has room for improvement. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an air conditioner that reduces the difficulty of disassembling the access cover and improves the situation where the access cover falls uncontrollably during disassembly, reducing the possibility of the access cover falling and injuring or damaging people.

[0004] An air conditioner according to an embodiment of the present invention includes: an air conditioner housing, wherein an installation cavity for installing ventilation and heat exchange components is defined within the air conditioner housing; an electrical control box, wherein the electrical control box is disposed on the side of the air conditioner housing and includes a circuit board and at least one inspection cover, wherein the circuit board is vertically disposed with one side in the thickness direction facing the installation cavity, and the inspection cover is detachably disposed on the side of the circuit board in the thickness direction opposite to the installation cavity; wherein the upper end of the inspection cover has a mating structure, and the air conditioner includes a limiting structure, wherein the limiting structure is detachably mated with the mating structure, and when mated, the limiting structure restricts the mating structure from moving downward.

[0005] According to the embodiment of the present invention, during the disassembly of the air conditioner, as long as the limiting structure is still in a cooperating state with the mating structure, the limiting structure can prevent the inspection cover from moving downward, making the disassembly of the inspection cover controllable. This can improve the situation where the inspection cover falls downward uncontrollably during the disassembly process and reduce the occurrence of the inspection cover falling and injuring or damaging people.

[0006] In some embodiments, the inspection cover includes a first inspection cover, the mating structure on the first inspection cover is a first mating structure, the limiting structure that mates with the first mating structure is a first limiting structure, and the first mating structure and the first limiting structure are hooked together.

[0007] In some embodiments, the first mating structure is recessed toward the mounting cavity to define a hanging groove that opens toward the direction away from the mounting cavity, and the first limiting structure extends obliquely downward toward the mounting cavity to extend into the hanging groove.

[0008] In some embodiments, the control box includes a box assembly and an outer cover. A first receiving cavity is formed within the box assembly, and the circuit board is disposed within the first receiving cavity. The outer cover is disposed on the side of the box assembly opposite to the mounting cavity to form a second receiving cavity with the box assembly. At least a portion of the wiring harness connected to the circuit board extends into the second receiving cavity. The outer cover is the first inspection cover.

[0009] In some embodiments, the first access cover includes a cover body, the first mating structure is connected to the upper end of the cover body and recessed relative to the cover body in the direction toward the mounting cavity to define a hanging groove that opens toward the direction away from the mounting cavity; the air conditioner housing includes a top plate with a downwardly extending extension at the edge of the top plate, and the first limiting structure extends obliquely from the lower end of the extension from top to bottom toward the direction near the mounting cavity to extend into the hanging groove.

[0010] In some embodiments, the box assembly includes a box body and an inner cover, the first receiving cavity being defined between the box body and the inner cover, the inner cover including at least one of the access cover.

[0011] In some embodiments, the electrical control box includes a second inspection cover, the mating structure on the second inspection cover is a second mating structure, the limiting structure that mates with the second mating structure is a second limiting structure, and the second mating structure and the second limiting structure are clamped together.

[0012] In some embodiments, the second limiting structure includes a first stop portion and a second stop portion, and the second mating structure includes a first clamping portion and a second clamping portion. The first clamping portion abuts against the side of the first stop portion near the mounting cavity, and the second clamping portion abuts against the side of the second stop portion away from the mounting cavity, so as to clamp the second limiting structure by the first clamping portion and the second clamping portion.

[0013] In some embodiments, the second limiting structure includes a strip plate extending along the upper length direction of the second inspection cover. The strip plate includes a central section and two end sections. There are two end sections located at the two ends of the central section. The central section forms an open-bottomed insertion hole. The portion of the central section located on the side of the insertion hole away from the mounting cavity constitutes the first stop portion. The two end sections respectively constitute the second stop portion. There are two second clamping portions, which are disposed on both sides of the first clamping portion along the length direction, and the second clamping portions and the first clamping portions are spaced apart along the length direction.

[0014] In some embodiments, the strip further includes an end segment located on the side of the two end segments away from the central segment. The lower surface of the end segment and the lower surface of the central segment both protrude downward relative to the lower surfaces of the two end segments to form a limiting groove between the two end segments and the central segment and the end segment. The upper end of the second inspection cover has a platform portion. The first clamping portion and the second clamping portion both protrude upward from the edge of the platform portion away from the mounting cavity. The platform portion also has an upwardly protruding rib portion located on the side of the second clamping portion near the mounting cavity and cooperating with the limiting groove.

[0015] In some embodiments, the strip plate is further provided with side clamps at both ends in the length direction, and the upper end of the second inspection cover is clamped between the side clamps on both sides.

[0016] In some embodiments, the air conditioner includes a housing assembly having a first receiving cavity formed therein, the circuit board being disposed within the first receiving cavity, the housing assembly including a housing body and an inner cover, the first receiving cavity being defined between the housing body and the inner cover, the inner cover including at least one second access cover.

[0017] In some embodiments, the inner cover includes a first inner cover and a second inner cover. The first inner cover has an opening area that is directly opposite to an electrical component and / or terminal socket on the circuit board. The second inner cover is used to open and close the opening area. The second inner cover is a second inspection cover. The second limiting structure is integrated on the upper end of the first inner cover.

[0018] In some embodiments, the electrical control box further includes an outer cover disposed on the side of the box assembly opposite to the mounting cavity to form a second receiving cavity between the outer cover and the box assembly, wherein at least a portion of the wiring harness connected to the circuit board extends into the second receiving cavity, and the outer cover is the maintenance cover.

[0019] In some embodiments, the separation of the limiting structure from the mating structure is configured to be performed after the access cover is flipped upwards relative to the air conditioning housing from its initial state by more than a preset angle.

[0020] In some embodiments, the preset angle is not less than 30°.

[0021] In some embodiments, the separation of the limiting structure from the mating structure is configured to be achieved by translational movement of the access cover relative to the air conditioning housing, the translational movement including at least one of upward translation and horizontal translation.

[0022] In some embodiments, the access cover is provided with a handle.

[0023] In some embodiments, the lower part and / or side of the access cover also have a connecting structure, and the air conditioner includes a mounting structure that engages with the connecting structure or is fastened by fasteners.

[0024] In some embodiments, the control box includes a box assembly and an outer cover. A first receiving cavity is formed within the box assembly, and the circuit board is disposed within the first receiving cavity. The box assembly includes a box body and an inner cover, and the first receiving cavity is defined between the box body and the inner cover. The outer cover is disposed on the side of the box assembly opposite to the mounting cavity to form a second receiving cavity with the box assembly. At least a portion of the wiring harness connected to the circuit board extends into the second receiving cavity. At least one of the outer cover and the inner cover includes the access cover.

[0025] In some embodiments, the outer cover is the access cover and cooperates with the limiting structure integrated on the air conditioner housing; and / or, the inner cover includes a first inner cover and a second inner cover, the first inner cover having an opening area that is directly opposite to an electrical component and / or terminal socket on the circuit board, the second inner cover being used to open and close the opening area, the second inner cover being the access cover and cooperating with the limiting structure integrated on the first inner cover.

[0026] In some embodiments, a wire harness structure is provided on the side of the inner cover facing the second receiving cavity, the inner cover has a wire passage area, and at least a portion of the wire harness connected to the circuit board extends from the wire passage area into the second receiving cavity, the second receiving cavity being sealed except for the wire passage area.

[0027] In some embodiments, the air conditioner is a ceiling-mounted air conditioner and includes an indoor unit and a base component, the indoor unit being disposed on the base component, and the electrical control box being disposed on the side of the indoor unit.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] Figure 1 This is a partial structural cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0030] Figure 2 This is a partial structural schematic diagram of an air conditioner according to an embodiment of the present invention;

[0031] Figure 3 It is based on Figure 1 A magnified view of region A in the example shown;

[0032] Figure 4 This is a schematic diagram of the disassembly structure of the outer cover according to an embodiment of the present utility model;

[0033] Figure 5 This is a cross-sectional view of another part of the structure of an air conditioner according to one embodiment of the present invention;

[0034] Figure 6 It is based on Figure 4 A magnified view of region B in the example shown;

[0035] Figure 7 This is an exploded view of the inner cover according to an embodiment of the present invention;

[0036] Figure 8 This is a partially enlarged view of the inner cover after assembly according to an embodiment of the present utility model;

[0037] Figure 9 This is a schematic diagram of the structure of the second inner cover according to an embodiment of the present utility model;

[0038] Figure 10 This is an exploded view of a portion of the structure of an air conditioner according to an embodiment of the present invention;

[0039] Figure 11 It is based on Figure 5 A magnified view of region C in the example shown;

[0040] Figure 12 This is a partial structural schematic diagram of an air conditioner according to one embodiment of the present invention from another angle;

[0041] Figure 13 This is a partial structural cross-sectional view of an air conditioner according to one embodiment of the present invention from another angle.

[0042] Figure label:

[0043] Air conditioner 1000;

[0044] Electrical control box 100; preset angle a;

[0045] Box assembly 1; first receiving cavity 10; box body 11; inner cover 12; first inner cover 121; opening area 1211; second inner cover 122; wire harness structure 123; wire passage area 124;

[0046] Outer cover 2; Second receiving cavity 20; Notch 21;

[0047] Circuit board 3;

[0048] Inspection cover 4; First inspection cover 41; Cover body 411; Second inspection cover 42; Platform part 421; Rib part 4211; Mating structure 43; First mating structure 431; Hanging groove 4311; First part 4312; Second part 4313; Second mating structure 432; First clamping part 4321; Protrusion 43211; Support rib 43212; Second clamping part 4322; Protruding plate 43221; Handle part 44; Connecting structure 45;

[0049] Air conditioner housing 200; mounting cavity 201;

[0050] Top plate 5; Extension section 51;

[0051] Ventilation and heat exchange component 300; heat exchange assembly 301; ventilation assembly 302;

[0052] Limiting structure 400;

[0053] First limiting structure 6;

[0054] Second limiting structure 7; strip plate 71; central section 711; insertion hole 7111; first stop part 7112; two end sections 712; straight line X where the ends of the two end sections are away from the mounting cavity; second stop part 7121; end section 713; limiting groove 714; side clamping plate 72;

[0055] Mounting structure 500; First fixing hole 51; Second fixing hole 52;

[0056] Indoor unit component 600; Indoor unit base 601; Positioning structure 6011; Mounting shell 602; Indoor unit body 603;

[0057] Base component 700;

[0058] Hanging bracket 800. Detailed Implementation

[0059] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0060] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0061] The air conditioner 1000 of this utility model is described below with reference to the accompanying drawings.

[0062] According to an embodiment of the present utility model, the air conditioner 1000, such as Figures 1-3 As shown, the air conditioner 1000 includes an air conditioner housing 200 and an electrical control box 100. The air conditioner housing 200 defines a mounting cavity 201 for installing a ventilation and heat exchange component 300. The electrical control box 100 is disposed on the side of the air conditioner housing 200 and includes a circuit board 3 and at least one inspection cover 4. The circuit board 3 is vertically disposed with one side in the thickness direction facing the mounting cavity 201. The inspection cover 4 is detachably disposed on the side of the circuit board 3 in the thickness direction away from the mounting cavity 201. The upper end of the inspection cover 4 has a mating structure 43. The air conditioner 1000 includes a limiting structure 400, which is detachably mated with the mating structure 43. When mated, the limiting structure 400 restricts the mating structure 43 from moving downward.

[0063] An installation cavity 201 is defined within the air conditioner housing 200. A ventilation and heat exchange component 300 is disposed within the installation cavity 201. The ventilation and heat exchange component 300 generates a flowing heat exchange airflow, and the air conditioner housing 200 protects the ventilation and heat exchange component 300. The electrical control box 100 being located on the side of the air conditioner 1000 means that the electrical control box 100 is located on the side of the air conditioner 1000 in the horizontal direction. The electrical control box 100 is located outside the air conditioner housing 200, facilitating its installation and maintenance.

[0064] The electrical control box 100 includes a circuit board 3. The circuit board 3 is vertically arranged, meaning that the thickness of the circuit board 3 is set in a horizontal or approximately horizontal direction, so that one side of the circuit board 3 in the thickness direction faces the mounting cavity 201.

[0065] The control box 100 also includes a maintenance cover 4, which is detachably disposed on the side of the circuit board 3 away from the mounting cavity 201 in the thickness direction. That is, the maintenance cover 4 is detachable, but the specific connection position of the maintenance cover 4 is not limited. For example, the maintenance cover 4 can be connected to other parts of the control box 100, or the maintenance cover 4 can also be connected to the air conditioner housing 200.

[0066] When in the installed position, the inspection cover 4 provides protection by covering the side of the circuit board 3 away from the mounting cavity 201 in the thickness direction. Removing the inspection cover 4 opens up space on the side of the circuit board 3 away from the mounting cavity 201 in the thickness direction, allowing for further operation. For example, removing the inspection cover 4 exposes the circuit board 3, allowing for repair or replacement; or, for another example, removing the inspection cover 4 exposes the space on the side of the inspection cover 4 closest to the mounting cavity 201, allowing for repair or replacement of other parts of the control box 100. By providing the inspection cover 4, only the cover needs to be removed for maintenance, eliminating the need to remove the entire control box 100 from the air conditioner housing 200, thus improving operational convenience.

[0067] Therefore, by positioning the inspection cover 4 on the side of the circuit board 3 away from the mounting cavity 201 in the thickness direction, a larger space is exposed when the inspection cover 4 is removed, providing more space for inspection and operation, thus facilitating the inspection and maintenance of the electrical control box 100. Furthermore, the larger external space of the air conditioner 1000 on the side of the circuit board 3 away from the mounting cavity 201 in the thickness direction provides more space for the removal and installation of the inspection cover 4, further facilitating its removal and installation.

[0068] The inspection cover 4 is also vertically installed. The upper end of the inspection cover 4 has a mating structure 43. The air conditioner 1000 includes a limiting structure 400. The limiting structure 400 and the mating structure 43 are detachably mated. When the limiting structure 400 and the mating structure 43 are mated, the limiting structure 400 restricts the mating structure 43 from moving downward. When the mating structure 43 and the limiting structure 400 are disengaged, the limiting structure 400 removes the restriction on the mating structure 43, and the inspection cover 4 can move downward relative to the air conditioner housing 200 to remove the inspection cover 4.

[0069] Because of the limiting structure 400, during the disassembly of the inspection cover 4, as long as the limiting structure 400 is still in a cooperating state with the mating structure 43, the limiting structure 400 can prevent the inspection cover 4 from moving downward, making the disassembly of the inspection cover 4 controllable. The operator does not need to keep controlling the inspection cover 4, which simplifies the disassembly operation of the inspection cover 4 and reduces the difficulty of operation.

[0070] When the electrical control box 100 is positioned high, the limiting structure 400 can prevent the inspection cover 4 from moving downward as long as it is in a cooperating state with the cooperating structure 43. This can improve the situation where the inspection cover 4 falls downward uncontrollably during disassembly, thereby reducing the occurrence of the inspection cover 4 falling and injuring people or being damaged.

[0071] According to the embodiment of the present utility model, in the process of disassembling the inspection cover 4, as long as the limiting structure 400 is still in a cooperating state with the cooperating structure 43, the limiting structure 400 can prevent the inspection cover 4 from moving downward, so that the disassembly of the inspection cover 4 is controllable. This can improve the situation where the inspection cover 4 falls downward uncontrollably during the disassembly process and reduce the occurrence of the inspection cover 4 falling and injuring or damaging people.

[0072] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the inspection cover 4 includes a first inspection cover 41, a first mating structure 43 on the first inspection cover 41, a first mating structure 431, and a first limiting structure 6 that mates with the first mating structure 431. The first mating structure 431 and the first limiting structure 6 are hooked together.

[0073] The inspection cover 4 includes a first inspection cover 41, the upper end of which has a first mating structure 431. The air conditioner 1000 includes a first limiting structure 6. The first mating structure 431 and the first limiting structure 6 are engaged by hooking. When the first limiting structure 6 and the first mating structure 431 are engaged by hooking, the first limiting structure 6 and the first mating structure 431 restrict the first inspection cover 41 from moving downward.

[0074] The first mating structure 431 and the first limiting structure 6 are hooked together. The structure is simple and can reduce the manufacturing difficulty. The assembly and disassembly processes of the hooked engagement are also relatively simple, which facilitates the disassembly and installation of the first inspection cover 41.

[0075] In some embodiments of this utility model, such as Figure 3 As shown, the first mating structure 431 is recessed in the direction of the mounting cavity 201 to define a hanging groove 4311 that is open in the direction away from the mounting cavity 201, and the first limiting structure 6 extends obliquely from top to bottom in the direction close to the mounting cavity 201 to extend into the hanging groove 4311.

[0076] The first mating structure 431 includes a first portion 4312 extending upward toward the mounting cavity 201 and a second portion 4313 extending upward away from the mounting cavity 201. The second portion 4313 is located above the first portion 4312. The first mating structure 431 defines an open hanging groove 4311 in a direction away from the mounting cavity 201. The first limiting structure 6 extends obliquely downward toward the mounting cavity 201 to enter the hanging groove 4311. The first limiting structure 6 receives the second portion 4313 and restricts the downward movement of the first mating structure 431.

[0077] The first mating structure 431 is recessed towards the mounting cavity 201 and does not protrude towards the direction away from the mounting cavity 201, thus reducing the space occupied in the direction away from the mounting cavity 201; and since the first mating structure 431 is recessed towards the mounting cavity 201 and is located within the outline of the electrical control box 100, it can reduce interference with the outside and the external structure is less likely to cause damage to the first mating structure 431.

[0078] Thus, the first mating structure 431 hooks with the first limiting structure 6, and the first inspection cover 41 can rotate at a certain angle relative to the air conditioner housing 200.

[0079] When the first inspection cover 41 is rotated relative to the air conditioner housing 200 beyond a preset angle a, the first limiting structure 6 is moved out of the hanging groove 4311, thereby releasing the first limiting structure 6 from the first mating structure 431, and the first inspection cover 41 can be removed. The disassembly and assembly process of the first inspection cover 41 is simple.

[0080] When the first inspection cover 41 is flipped no more than the preset angle a, the first limiting structure 6 extends into the hanging groove 4311 and maintains its support for the first mating structure 431. Under the action of supporting force and gravity, the first inspection cover 41 has a tendency to return to the vertical position. That is, the first inspection cover 41 can achieve automatic reset, which can improve the installation stability of the first inspection cover 41.

[0081] In some embodiments of this utility model, such as Figure 1 and Figure 4 As shown, the electrical control box 100 includes a box assembly 1 and an outer cover 2. A first receiving cavity 10 is formed inside the box assembly 1. The circuit board 3 is disposed in the first receiving cavity 10. The outer cover 2 is disposed on the side of the box assembly 1 away from the mounting cavity 201, so as to form a second receiving cavity 20 between the outer cover 1 and the box assembly 1. At least a portion of the wiring harness connected to the circuit board 3 extends into the second receiving cavity 20. The outer cover 2 is a first inspection cover 41.

[0082] The electrical control box 100 includes a box assembly 1 and an outer cover 2. The box assembly 1 has a first receiving cavity 10, and the circuit board 3 is disposed in the first receiving cavity 10. The box assembly 1 can protect the circuit board 3. The outer cover 2 is disposed on the side of the box assembly 1 opposite to the mounting cavity 201. A second receiving cavity 20 is formed between the outer cover 2 and the box assembly 1. At least a portion of the external end of the wire harness connected to the circuit board 3 extends into the second receiving cavity 20. The box assembly 1 thereby separates the circuit board 3 disposed in the first receiving cavity 10 from the wire harness extending into the second receiving cavity 20. The box assembly 1 isolates the wire harness from the circuit board 3 and the onboard electrical components on the circuit board 3, which can better achieve safe isolation of electrical components and reduce interference and contact between the wire harness and the onboard electrical components.

[0083] The external end of the wiring harness refers to the end of the wiring harness connected to the circuit board 3 that is furthest from the circuit board 3. It is understood that functional modules, such as lighting components or purification components, can be electrically connected to the circuit board 3 and jointly controlled by the control box 100. Extending the external end of the wiring harness into the second mounting cavity 201 facilitates the connection of the wiring harness outside the control box 100 with the wiring harness extended into the second receiving cavity 20, improving operational convenience.

[0084] The outer cover 2 is the first inspection cover 41. After removing the first inspection cover 41, the second receiving cavity 20 and the wiring harness extending into the second receiving cavity 20 can be exposed, allowing for the inspection and maintenance of the components and wiring harness inside the second receiving cavity 20, or for connecting the wiring harness outside the control box 100 to the wiring harness extending into the second receiving cavity 20. These operations can be performed by removing the first inspection cover 41 without having to remove the entire control box 100 from the air conditioner housing 200, thus improving operational convenience.

[0085] Furthermore, by configuring the electrical control box 100 with a box assembly 1 and an outer cover 2, when the outer cover 2 is removed, the box assembly 1 still protects the circuit board 3 within the first receiving cavity 10 during maintenance and replacement of the components in the second receiving cavity 20 and the wiring harness extending to the second receiving cavity 20. This reduces accidental contact with the circuit board 3 and improves the operational reliability of the electrical control box 100.

[0086] It is worth noting that not only the outer cover 2 can be the first maintenance cover 41, but in some other embodiments, the covers at other locations of the electrical control box 100 can also be constructed as the first maintenance cover 41.

[0087] In some embodiments of this utility model, the outer cover 2 is constructed as a sheet metal part. The outer cover 2 is disposed on the side of the box assembly 1 away from the mounting cavity 201. The outer cover 2 has fireproof and flame-retardant functions and can protect the circuit board 3 and other components inside the box assembly 1.

[0088] In some embodiments of this utility model, such as Figure 6 and Figure 3As shown, the first inspection cover 41 includes a cover body 411, and a first mating structure 431 is connected to the upper end of the cover body 411 and recessed relative to the cover body 411 in the direction toward the mounting cavity 201 to define a hanging groove 4311 that opens in the direction away from the mounting cavity 201; the air conditioner housing 200 includes a top plate 5, the edge of the top plate 5 having a downwardly extending extension 51, and a first limiting structure 6 extending obliquely from the lower end of the extension 51 from top to bottom in the direction toward the mounting cavity 201 to extend into the hanging groove 4311.

[0089] The first mating structure 431 is recessed towards the mounting cavity 201 and does not protrude towards the direction away from the mounting cavity 201, thus reducing the space occupied in the direction away from the mounting cavity 201; and since the first mating structure 431 is recessed towards the mounting cavity 201 and is located within the outline of the electrical control box 100, it can reduce interference with the outside and the external structure is less likely to cause damage to the first mating structure 431.

[0090] The edge of the top plate 5 has a downwardly extending extension section 51. The first limiting structure 6 is connected to the lower end of the extension section 51. The first limiting structure 6 extends obliquely from top to bottom toward the mounting cavity 201. The first limiting structure 6 extends into the hanging groove 4311. The first limiting structure 6 supports the upper end of the first mating structure 431 from bottom to top. The first limiting structure 6 restricts the first mating structure 431 from moving downward.

[0091] By setting the first limiting structure 6 on the top plate 5 of the air conditioner 1000, the first mating structure 431 at the upper end of the outer cover 2 is mated with the first limiting structure 6, and the upper end of the outer cover 2 is higher than the upper end of the box assembly 1, so that the outer cover 2 fully covers the box assembly 1, thereby improving the protective effect of the outer cover 2.

[0092] In some embodiments of this utility model, such as Figure 5 As shown, the box assembly 1 includes a box body 11 and an inner cover 12, a first receiving cavity 10 is defined between the box body 11 and the inner cover 12, and the inner cover 12 includes at least one access cover 4.

[0093] The box assembly 1 includes a box body 11 and an inner cover 12. The inner cover 12 is detachably coupled to the box body 11 or other structures of the electrical control box 100, thereby opening the first receiving cavity 10 to facilitate the maintenance or replacement of the circuit board 3 and other components inside the first receiving cavity 10.

[0094] The inner cover 12 can be a single, integral cover, in which case the inner cover 12 is an inspection cover 4; or, the inner cover 12 can also be composed of multiple cover bodies, at least one of which is an inspection cover 4. It is worth noting that the inspection cover 4 included in the inner cover 12 can be in the structural form of the first inspection cover 41, or it can be an inspection cover 4 in other structural forms.

[0095] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the electrical control box 100 includes a second inspection cover 42, a mating structure 43 on the second inspection cover 42 is a second mating structure 432, and a limiting structure 400 that mates with the second mating structure 432 is a second limiting structure 7. The second mating structure 432 and the second limiting structure 7 are clamped together.

[0096] The inspection cover 4 includes a second inspection cover 42, the upper end of which has a second mating structure 432. The air conditioner 1000 includes a second limiting structure 7. The second mating structure 432 and the second limiting structure 7 are clamped together. When the second limiting structure 7 and the second mating structure 432 are clamped together, the second inspection cover 42 is restricted from moving downward.

[0097] The second mating structure 432 is clamped on the second limiting structure 7, and / or the second limiting structure 7 is clamped on the second mating structure 432. The assembly and disassembly processes of the second mating structure 432 and the second limiting structure 7 are relatively simple, thereby facilitating the disassembly and installation of the second inspection cover 42.

[0098] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the second limiting structure 7 includes a first stop portion 7112 and a second stop portion 7121, and the second mating structure 432 includes a first clamping portion 4321 and a second clamping portion 4322. The first clamping portion 4321 abuts against the side of the first stop portion 7112 near the mounting cavity 201, and the second clamping portion 4322 abuts against the side of the second stop portion 7121 away from the mounting cavity 201, so as to clamp the second limiting structure 7 through the first clamping portion 4321 and the second clamping portion 4322.

[0099] The second limiting structure 7 includes a first stop portion 7112 and a second stop portion 7121. Both the first stop portion 7112 and the second stop portion 7121 have a side end close to the mounting cavity 201 and a side end away from the mounting cavity 201. The second mating structure 432 includes a first clamping portion 4321 and a second clamping portion 4322. The first clamping portion 4321 abuts against the side of the first stop portion 7112 close to the mounting cavity 201, and the second clamping portion 4322 abuts against the side of the second stop portion 7121 away from the mounting cavity 201. The first clamping part 4321 applies a force away from the mounting cavity 201 to the first stop part 7112, and the second clamping part 4322 applies a force close to the mounting cavity 201 to the second stop part 7121. The first clamping part 4321 and the second clamping part 4322 clamp the second limiting structure 7. The clamping action of the first clamping part 4321 and the second clamping part 4322 restricts the downward movement of the second inspection cover 42.

[0100] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the second limiting structure 7 includes a strip plate 71 extending along the upper length direction of the second inspection cover 42. The strip plate 71 includes a central section 711 and two end sections 712. The two end sections 712 are two in number and located at the two ends of the central section 711. The central section 711 forms an insertion hole 7111 with an open bottom. The portion of the central section 711 located on the side of the insertion hole 7111 away from the mounting cavity 201 constitutes a first stop portion 7112. The two end sections 712 respectively constitute a second stop portion 7121. There are two second clamping portions 4322, which are disposed on both sides of the first clamping portion 4321 along the length direction, and the second clamping portions 4322 and the first clamping portions 4321 are spaced apart along the length direction.

[0101] The strip plate 71 includes a central section 711 and two end sections 712. There are two end sections 712 located at both ends of the central section 711, each forming a second stop portion 7121. The central section 711 defines a first stop portion 7112. Correspondingly, there are two second clamping portions 4322 and one first clamping portion 4321. The two second clamping portions 4322 are positioned on either side of the first clamping portion 4321. The first clamping portion 4321 and one side of the second clamping portion 4322 together form a clamping fit, and the first clamping portion 4321 and the other side of the second clamping portion 4322 together form a clamping fit. The second mating structure 432 and the second limiting structure 7 are subjected to balanced forces along the upper length direction of the second inspection cover 42, which can improve the situation where the second mating structure 432 and the second limiting structure 7 are tilted towards one side of the upper length direction of the second inspection cover 42, thereby improving the stability of the fit between the second mating structure 432 and the second limiting structure 7.

[0102] The central section 711 has an open-bottomed insertion hole 7111. A first clamping part 4321 extends from the bottom of the central section 711 into the insertion hole 7111, thereby causing the first clamping part 4321 to abut against the portion of the central section 711 located on the side of the insertion hole 7111 away from the mounting cavity 201. The first clamping part 4321 applies a force away from the mounting cavity 201 to the portion of the central section 711 located on the side of the insertion hole 7111 away from the mounting cavity 201.

[0103] The two end segments 712 respectively form the second stop portion 7121, and the second clamping portion 4322 stops on the side of the two end segments 712 away from the mounting cavity 201. The second clamping portion 4322 applies a force to the two end segments 712 in the direction toward the mounting cavity 201. The clamping action of the first clamping portion 4321 and the second clamping portion 4322 restricts the downward movement of the second inspection cover 42.

[0104] The central section 711 has a bottom-opening socket 7111, optionally, such as Figure 7 and Figure 8 As shown, the socket 7111 is a through hole that runs through the central section 711 in the vertical direction; alternatively, the socket 7111 may be constructed as a blind hole that is open downwards and closed upwards.

[0105] In some embodiments of this utility model, such as Figure 7 As shown, the socket 7111 is a square hole; or it can be other shapes.

[0106] In some embodiments of this utility model, a socket 7111 may be provided on the central section 711; or, there may be multiple sockets 7111, and correspondingly, there may be multiple first clamping parts 4321, which are arranged one-to-one with the sockets 7111.

[0107] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the central section 711 protrudes in a direction away from the mounting cavity 201 compared to the two end sections 712. The insertion hole 7111 on the central section 711 is positioned away from the mounting cavity 201, as shown... Figure 8 As shown, the straight line X is located on the side of the two end segments 712 facing away from the mounting cavity 201. The straight line X passes through the socket 7111. The part of the central segment 711 located on the side of the socket 7111 away from the mounting cavity 201 is set away from the mounting cavity 201 compared to the straight line X. When the first clamping part 4321 abuts against the portion of the central section 711 located on the side away from the mounting cavity 201 of the insertion hole 7111, and the second clamping part 4322 abuts against the side of the two end sections 712 away from the mounting cavity 201, the abutting position of the first clamping part 4321 is farther away from the mounting cavity 201 than the abutting position of the second clamping part 4322. The first clamping part 4321 applies a force to the first abutting part 7112 in a direction away from the mounting cavity 201, and the second clamping part 4322 applies a force to the second abutting part 7121 in a direction toward the mounting cavity 201. The first clamping part 4321 and the second clamping part 4322 form an interleaved clamping engagement, which further improves the clamping engagement stability of the second mating structure 432 and the second limiting structure 7, and is conducive to improving the installation stability of the second inspection cover 42.

[0108] In some embodiments of this utility model, such as Figure 8 As shown, the first clamping part 4321 applies a force to the first stop part 7112 in a direction away from the mounting cavity 201, and the second clamping part 4322 applies a force to the second stop part 7121 in a direction toward the mounting cavity 201. The cooperation between the second mating structure 432 and the second limiting structure 7 forms a mating form similar to that of a shaft and a bushing.

[0109] Therefore, as Figure 11As shown, with the second mating structure 432 and the second limiting structure 7 clamping together, the second inspection cover 42 can rotate at a certain angle relative to other parts of the electrical control box 100.

[0110] When the second inspection cover 42 is rotated away from the mounting cavity 201 by more than a preset angle a, the first clamping part 4321 is removed from the insertion hole 7111, thereby releasing the contact between the first clamping part 4321 and the first stop part 7112. Then the mutual clamping force between the first clamping part 4321 and the second clamping part 4322 disappears, and the second mating structure 432 and the second limiting structure 7 can be directly separated, and the second inspection cover 42 can be removed. The disassembly and assembly process of the second inspection cover 42 is simple.

[0111] When the second inspection cover 42 is rotated away from the mounting cavity 201 by no more than a preset angle a, the first clamping part 4321 is still inside the insertion hole 7111 and maintains contact with the first stop part 7112. Under the action of clamping force and gravity, the second inspection cover 42 has a tendency to return to the vertical position, that is, the second inspection cover 42 has a tendency to rotate towards the mounting cavity 201.

[0112] Therefore, after flipping the second inspection cover 42 away from the mounting cavity 201 by no more than a preset angle α, releasing the force that flipped the second inspection cover 42 will cancel the flipping force, and the second inspection cover 42 will automatically reset and close. Here, "reset" means that the second inspection cover 42 returns to the position where it is installed in the electrical control box 100 after rotating a certain angle relative to other parts of the electrical control box 100.

[0113] Because the second inspection cover 42 has the function of automatically resetting after being flipped at a certain angle, the operation of opening the second inspection cover 42 slightly is much simpler, without having to completely remove the second inspection cover 42. It also makes the reinstallation of the second inspection cover 42 more convenient. For example, when it is necessary to fix the second inspection cover 42 with screws, it is not necessary to hold the second inspection cover 42 in place; screws can be driven with one hand, making the operation convenient.

[0114] In some embodiments of this utility model, the cooperation between the second clamping part 4322 and the second stop part 7121 can limit the size of a preset angle α of the second inspection cover 42 rotating away from the mounting cavity 201.

[0115] In some embodiments of this utility model, such as Figure 7 and Figure 9As shown, the first clamping part 4321 is constructed as a protrusion 43211 protruding upward from the upper end of the second inspection cover 42. The protrusion 43211 can extend from bottom to top into the insertion hole 7111 as the second inspection cover 42 rotates relative to the strip plate 71. Alternatively, the protrusion 43211 can move towards the mounting cavity 201 relative to the strip plate 71 as the second inspection cover 42 moves, so that after passing the first stop part 7112, the protrusion 43211 is inserted into the insertion hole 7111. A crisp "click" sound can be heard when the protrusion 43211 enters the insertion hole 7111, and a tactile feel is provided to facilitate the installation of the second inspection cover 42.

[0116] like Figure 9 As shown, a support rib 43212 connected to the upper end of the second inspection cover 42 is provided on the side of the protrusion 43211 near the mounting cavity 201. The support rib 43212 gradually decreases in size from bottom to top towards the protrusion 43211. The support rib 43212 can improve the structural stability of the first clamping part 4321, thereby improving the cooperation stability between the first clamping part 4321 and the first stop part 7112. On the other hand, the support rib 43212 can play a guiding role. When the second inspection cover 42 moves relative to the strip plate 71 towards the mounting cavity 201, the support rib 43212 first contacts the first stop part 7112. The structure of the support rib 43212 guides the first stop part 7112 obliquely upward, so that the protrusion 43211 can easily pass over the first stop part 7112 and enter the insertion hole 7111.

[0117] In some embodiments of this utility model, such as Figures 7-9 As shown, the strip plate 71 also includes an end section 713, which is located on the side of the two end sections 712 away from the central section 711. The lower surface of the end section 713 and the lower surface of the central section 711 both protrude downward relative to the lower surface of the two end sections 712 to form a limiting groove 714 between the lower surface of the two end sections 712 and the central section 711 and the end section 713. The upper end of the second inspection cover 42 has a platform portion 421. The first clamping portion 4321 and the second clamping portion 4322 both protrude upward from the edge of the platform portion 421 away from the mounting cavity 201. The platform portion 421 also has an upwardly protruding rib portion 4211, which is located on the side of the second clamping portion 4322 near the mounting cavity 201 and cooperates with the limiting groove 714.

[0118] The lower surface of the end section 713 on the strip plate 71 protrudes downward relative to the lower surfaces of the two end sections 712, and the lower surface of the central section 711 protrudes downward relative to the lower surfaces of the two end sections 712, thereby forming a limiting groove 714 that blocks along the upper length direction of the second inspection cover 42 below the two end sections 712.

[0119] At least a portion of the platform portion 421 extends into the lower end of the strip plate 71, such that the first clamping portion 4321 on the platform portion 421 extends upward into the insertion hole 7111. The platform portion 421 also has an upwardly protruding rib portion 4211, which is disposed adjacent to the second clamping portion 4322 and is designed to engage with the limiting grooves 714 below the end sections 712. The lower portion of the end section 713 limits the rib portion 4211 along the length direction of the strip plate 71, and the lower portion of the central section 711 also limits the rib portion 4211 along the length direction of the strip plate 71, thereby reducing the movement of the second inspection cover 42 relative to the second limiting structure 7 along the upper length direction of the second inspection cover 42 and further improving the installation stability of the second inspection cover 42.

[0120] There are two end segments 713, each located on the side of the two end segments 712 away from the central segment 711. There are also two limiting grooves 714 formed between the end segments 713 and the central segment 711. Correspondingly, there are two protruding ribs 4211 on the platform, each corresponding to one of the limiting grooves 714.

[0121] In some embodiments of this utility model, such as Figure 9 As shown, a protruding plate 43221 protrudes upward from the edge of the platform portion 421 away from the mounting cavity 201. The protruding plate 43221 defines the second clamping portion 4322, as shown. Figure 7 and Figure 8 As shown, the protruding plate 43221 not only abuts against the side of the two end sections 712 away from the mounting cavity 201, but also abuts against the side of the end section 713 away from the mounting cavity 201, which can further improve the fit stability of the second mating structure 432 and the second limiting structure 7.

[0122] like Figure 9 As shown, the rib portion 4211 and the convex plate 43221 are integrally formed, which can improve the structural stability of the platform portion 421, thereby further improving the fit stability between the second mating structure 432 and the second limiting structure 7.

[0123] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the strip plate 71 is also provided with side clamps 72 at both ends in the length direction, and the upper end of the second inspection cover 42 is clamped between the side clamps 72 on both sides.

[0124] The side clamp 72 limits the upper end of the second inspection cover 42 along the length direction of the upper end of the second inspection cover 42, thereby reducing the movement of the second inspection cover 42 relative to the second limiting structure 7 along the length direction of the upper end of the second inspection cover 42, and further improving the installation stability of the second inspection cover 42.

[0125] In some embodiments of this utility model, such as Figure 9 As shown, the upper end of the second inspection cover 42 has a platform portion 421. A protruding plate 43221 protrudes upward from the edge of the platform portion 421 away from the mounting cavity 201. The protruding plate 43221 defines the second clamping portion 4322. The side clamping plates 72 on both sides also clamp the second clamping portion 4322 along the length direction of the upper end of the second inspection cover 42, thereby improving the stability of the fit between the second mating structure 432 and the second limiting structure 7.

[0126] In some embodiments of this utility model, such as Figure 5 and Figure 10 As shown, the air conditioner 1000 includes a box assembly 1, a first receiving cavity 10 is formed in the box assembly 1, a circuit board 3 is disposed in the first receiving cavity 10, the box assembly 1 includes a box body 11 and an inner cover 12, the first receiving cavity 10 is defined between the box body 11 and the inner cover 12, and the inner cover 12 includes at least one second inspection cover 42.

[0127] The box assembly 1 includes a box body 11 and an inner cover 12. The inner cover 12 is detachably coupled to the box body 11 or other structures of the electrical control box 100, thereby opening the first receiving cavity 10 to facilitate the maintenance and replacement of the circuit board 3 and other components inside the first receiving cavity 10.

[0128] The inner cover 12 can be a single, integral cover, in which case the inner cover 12 is the second maintenance cover 42; or, the inner cover 12 can also be composed of multiple cover bodies, at least one of which is the second maintenance cover 42.

[0129] It is worth noting that the inner cover 12 of the box assembly 1 includes at least one second access cover 42, but is not limited thereto; covers at other locations of the electrical control box 100 may also be configured as second access covers 42.

[0130] In some embodiments of this utility model, such as Figure 10 and Figure 11 As shown, the inner cover 12 includes a first inner cover 121 and a second inner cover 122. The first inner cover 121 has an opening area 1211, which is directly opposite to the electrical components and / or terminal sockets on the circuit board 3. The second inner cover 122 is used to switch the opening area 1211. The second inner cover 122 is a second inspection cover 42. The second limiting structure 7 is integrated at the upper end of the first inner cover 121.

[0131] The first inner cover 121 and the second inner cover 122 together define the first receiving cavity 10. The first inner cover 121 has an opening area 1211, and the second inner cover 122 is used to open and close the opening area 1211. When the second inner cover 122 opens the opening area 1211, the electrical components and / or terminal sockets on the circuit board 3 inside the first receiving cavity 10 are exposed, thereby allowing maintenance and repair of the electrical components and / or terminal sockets on the circuit board 3. When the second inner cover 122 closes the opening area 1211, the first inner cover 121 and the second inner cover 122 together protect the internal circuit board 3.

[0132] The second inner cover 122 is the second inspection cover 42. The upper end of the second inner cover 122 is clamped and engaged with the upper end of the first inner cover 121. The assembly and disassembly processes of the second inner cover 122 and the first inner cover 121 are relatively simple, thereby facilitating the maintenance and repair of electrical components and / or terminal sockets on the circuit board 3 through the opening area 1211.

[0133] In some embodiments of this utility model, such as Figure 5 As shown, the electrical control box 100 also includes an outer cover 2, which is located on the side of the box assembly 1 away from the mounting cavity 201 to form a second receiving cavity 20 between the outer cover 2 and the box assembly 1. At least a portion of the wiring harness connected to the circuit board 3 extends into the second receiving cavity 20. The outer cover 2 is an inspection cover 4.

[0134] When it is necessary to inspect or connect the wiring harness in the second receiving cavity 20 of the electrical control box 100, or when it is necessary to repair or replace the components in the second receiving cavity 20, the outer cover 2 can be removed. The outer cover 2 is the inspection cover 4. The assembly and disassembly of the inspection cover 4 are relatively simple and easy to operate.

[0135] When it is necessary to maintain and repair the electrical components and / or terminal sockets on the circuit board 3, the first inner cover 121 can be removed from the second opening. The first inner cover 121 is the second inspection cover 42. The assembly and disassembly of the second inspection cover 42 are relatively simple and easy to operate.

[0136] The outer cover 2 is an inspection cover 4. Optionally, the outer cover 2 can be a second inspection cover 42, which is clamped and engaged with the second limiting structure 7 through the second mating structure 432; or, alternatively, the outer cover 2 can also be the first inspection cover 41 mentioned above, which is hooked and engaged with the first limiting structure 6 through the first mating structure 431; or, alternatively, the outer cover 2 can also be an inspection cover 4 of other structural forms that is detachably engaged with the limiting structure 400.

[0137] In some embodiments of this utility model, such as Figure 11As shown, the separation of the limiting structure 400 and the mating structure 43 is configured to be carried out after the access cover 4 is flipped upward relative to the air conditioning housing 200 from the initial state by more than a preset angle a.

[0138] It is understandable that the upper end of the inspection cover 4 has a mating structure 43 that engages with the limiting structure 400. Therefore, when the inspection cover 4 is flipped relative to the air conditioner housing 200, the lower end of the inspection cover 4 is rotated upward, that is, the inspection cover 4 can be flipped upward relative to the air conditioner housing 200.

[0139] The state of the inspection cover 4 when it is in the normal working position is the initial state of the inspection cover 4. After the inspection cover 4 is flipped upward from the initial state relative to the air conditioner housing 200 beyond the preset angle a, the limiting structure 400 is separated from the mating structure 43, so that the inspection cover 4 can be removed. The disassembly operation of the inspection cover 4 is simple and reduces the difficulty of operation.

[0140] When the inspection cover 4 flips upward relative to the air conditioner housing 200 from its initial state without exceeding the preset angle a, the limiting structure 400 keeps the mating structure 43 in a limited position. The limiting structure 400 restricts the inspection cover 4 from being removed, making the disassembly of the inspection cover 4 controllable. This can improve the situation where the inspection cover 4 falls downward uncontrollably during the disassembly process and reduce the occurrence of the inspection cover 4 falling and injuring or damaging people.

[0141] In some embodiments of this utility model, when the inspection cover 4 flips upward relative to the air conditioner housing 200 from the initial state without exceeding a preset angle a, the limiting structure 400 restricts the cooperating structure 43 so that the inspection cover 4 has a tendency to return to the initial state position, that is, the inspection cover 4 can achieve automatic reset.

[0142] Because the inspection cover 4 has the function of flipping upwards at a certain angle and automatically resetting, it is much simpler to open the inspection cover 4 slightly for inspection, without having to remove the entire inspection cover 4. After the inspection is completed, the inspection cover 4 will automatically return to its initial position.

[0143] In some embodiments of this utility model, such as Figure 11 As shown, the preset angle α is not less than 30°.

[0144] If the preset angle 'a' is too small, the access cover 4 will flip slightly upwards relative to the air conditioner housing 200 from its initial state, causing the limiting structure 400 to separate from the mating structure 43, allowing the access cover 4 to be removed. However, this makes disassembly control of the access cover 4 difficult. If the preset angle 'a' is too large, the access cover 4 will need to flip upwards at a large angle relative to the air conditioner housing 200 from its initial state to be removed. This makes disassembly and installation of the access cover 4 difficult and increases the operational complexity.

[0145] Optionally, the preset angle α can be 30°, 35°, 45°, 55°, 60°, etc.

[0146] In some embodiments of this utility model, the preset angle α is 45°.

[0147] When the inspection cover 4 is rotated upward from the initial state to within 45° relative to the air conditioner housing 200, the limiting structure 400 keeps the mating structure 43 in a limited position, and the inspection cover 4 cannot be removed, making the disassembly of the inspection cover 4 controllable; when the inspection cover 4 is rotated upward from the initial state to within 45° relative to the air conditioner housing 200, the limiting structure 400 is disengaged from the mating structure 43, and the inspection cover 4 can be removed, making the disassembly of the inspection cover 4 simple.

[0148] In some embodiments of this utility model, the separation of the limiting structure 400 from the mating structure 43 is configured to be achieved by the translational movement of the access cover 4 relative to the air conditioning housing 200, the translational movement including at least one of upward translation and horizontal translation.

[0149] The inspection cover 4 can move relative to the air conditioner housing 200. When the inspection cover 4 moves to the disassembly position where the limiting structure 400 releases the restriction on the mating structure 43, the inspection cover 4 can be removed. The disassembly operation of the inspection cover 4 is simple and reduces the difficulty of operation. However, when the inspection cover 4 has not moved to the moving position relative to the air conditioner housing 200, the limiting structure 400 keeps the mating structure 43 in a limiting position. The limiting structure 400 restricts the inspection cover 4 from being removed, making the disassembly of the inspection cover 4 controllable. This can improve the situation where the inspection cover 4 falls uncontrollably downwards during the disassembly process, and reduce the possibility of the inspection cover 4 falling and injuring or damaging people.

[0150] Optionally, the translational movement of the access cover 4 relative to the air conditioner housing 200 can be an upward translation, which can be a vertical upward translation or an inclined upward translation. Alternatively, the translational movement of the access cover 4 relative to the air conditioner housing 200 can also be a horizontal translation. Alternatively, the translational movement of the access cover 4 relative to the air conditioner housing 200 can be a combination of upward and horizontal translation.

[0151] In some embodiments of this utility model, such as Figure 10 As shown, the inspection cover 4 is provided with a handle 44.

[0152] The inspection cover 4 is equipped with a handle 44, which makes it easy for operators to hold the inspection cover 4 and apply force, thereby improving the convenience of disassembling and assembling the inspection cover 4.

[0153] In some embodiments of this utility model, such as Figure 7 As shown, the lower part and / or side of the access cover 4 also have a connecting structure 45. The air conditioner 1000 includes a mounting structure 500, which is engaged with the connecting structure 45 or fastened by fasteners.

[0154] The inspection cover 4 is not only limited by the mating structure 43 and the limiting structure 400, but also by the connecting structure 45 and the mounting structure 500, which can improve the installation stability of the inspection cover 4.

[0155] Furthermore, since the limiting structure 400 is also in a mating state with the mating structure 43, the limiting structure 400 can prevent the inspection cover 4 from moving downward. Thus, when the limiting structure 400 and the mating structure 43 are mating, there is no need to hold the inspection cover 4 to fix it in place. The operator can connect the connecting structure 45 to the mounting structure 500 with one hand, such as by driving screws with one hand, which is convenient.

[0156] In some embodiments of this utility model, such as Figure 4 and Figure 7 As shown, the connecting structure 45 is configured as a connecting hole, and the mounting structure 500 includes a mounting hole. Fasteners pass through the connecting hole and connect with the fixing hole, thereby fixing the inspection cover 4 and improving the installation stability of the inspection cover 4.

[0157] In some embodiments of this utility model, such as Figure 5 As shown, the electrical control box 100 includes a box assembly 1 and an outer cover 2. A first receiving cavity 10 is formed inside the box assembly 1, and a circuit board 3 is disposed within the first receiving cavity 10. The box assembly 1 includes a box body 11 and an inner cover 12, and the first receiving cavity 10 is defined between the box body 11 and the inner cover 12; Figure 1 As shown, the outer cover 2 is located on the side of the box assembly 1 opposite to the mounting cavity 201, forming a second receiving cavity 20 between it and the box assembly 1. At least a portion of the wiring harness connected to the circuit board 3 extends into the second receiving cavity 20, as shown. Figure 4 and Figure 10 As shown, at least one of the outer cover 2 and the inner cover 12 includes an inspection cover 4.

[0158] When it is necessary to inspect or connect the wiring harness in the second receiving cavity 20 of the electrical control box 100, or to repair or replace the components in the second receiving cavity 20, the outer cover 2 can be removed. When the outer cover 2 is an inspection cover 4, the assembly and disassembly process of the inspection cover 4 is relatively simple, thus facilitating the operation of the wiring harness and components in the second receiving cavity 20.

[0159] When maintenance and repair of the circuit board 3 in the first receiving cavity 10 are required, or when repair or replacement of other components in the first receiving cavity 10 are required, the inner cover 12 can be removed. When the inner cover 12 is an inspection cover 4, the assembly and disassembly process of the inspection cover 4 is relatively simple, thus facilitating the operation of the circuit board 3 and components in the second receiving cavity 20.

[0160] At least one of the outer cover 2 and the inner cover 12 includes an inspection cover 4. The outer cover 2 or the inner cover 12 may be the first inspection cover 41 described above, which is hooked and engaged with the first limiting structure 6 through the first mating structure 431. The outer cover 2 or the inner cover 12 may also be the second inspection cover 42 described above, which is clamped and engaged with the second limiting structure 7 through the second mating structure 432. The outer cover 2 or the inner cover 12 may also be an inspection cover 4 of other structural forms to be detachably engaged with the limiting structure 400.

[0161] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the outer cover 2 is an inspection cover 4 and cooperates with the limiting structure 400 integrated on the air conditioner housing 200.

[0162] In some specific embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the outer cover 2 is a first inspection cover 41. The upper end of the first inspection cover 41 has a first mating structure 431. The first mating structure 431 includes a first part 4312 extending from bottom to top toward the mounting cavity 201, and a second part 4313 extending from bottom to top toward the direction away from the mounting cavity 201. The second part 4313 is located above the first part 4312. The first mating structure 431 defines a hanging groove 4311 that is open in the direction away from the mounting cavity 201.

[0163] The air conditioner housing 200 includes a top plate 5. The edge of the top plate 5 has a downwardly extending extension section 51. The lower end of the extension section 51 extends obliquely downward toward the mounting cavity 201 to form a first limiting structure 6. The first limiting structure 6 extends obliquely into the hanging groove 4311. The first limiting structure 6 receives the first part 4312 of the first mating structure 431 from bottom to top. The first limiting structure 6 restricts the downward movement of the first mating structure 431.

[0164] Furthermore, since the first limiting structure 6 supports the first part 4312 of the first mating structure 431 from bottom to top, when the first inspection cover 41 is rotated upward relative to the air conditioner housing 200 by no more than 45 degrees, the first limiting structure 6 maintains support on the first mating structure 431, and the first inspection cover 41 will not fall downward. Under the cooperation of the first limiting structure 6 and the first mating structure 431, as well as the action of gravity, when the first inspection cover 41 is rotated upward relative to the air conditioner housing 200 by no more than 45 degrees, the first inspection cover 41 has a tendency to return to the initial position of covering the second receiving cavity 20, that is, the first inspection cover 41 can achieve automatic reset.

[0165] like Figure 4As shown, the lower part of the first inspection cover 41 has a connecting structure 45, and the air conditioner housing 200 has a mounting structure 500. The mounting structure 500 is constructed as a first fixing hole 51, and the fixing screw passes through the connecting structure 45 and the first fixing hole 51 for fastening connection.

[0166] The upper end of the first inspection cover 41 is hooked, and the lower part of the first inspection cover 41 is fixedly connected, which can improve the connection reliability of the first inspection cover 41. When it is necessary to repair the wire harness or components in the second receiving cavity 20, the first inspection cover 41 can be rotated open by removing the fixing screw at the bottom. When the opening angle is less than 45 degrees, the first inspection cover 41 will not fall out and can automatically reset and close. The fixing screw can be driven with one hand, making the maintenance operation convenient.

[0167] In some embodiments of this utility model, such as Figure 10 As shown, the inner cover 12 includes a first inner cover 121 and a second inner cover 122. The first inner cover 121 has an opening area 1211, which is directly opposite to the electrical components and / or terminal sockets on the circuit board 3. The second inner cover 122 is used to switch the opening area 1211. The second inner cover 122 is an inspection cover 4 and cooperates with the limiting structure 400 integrated on the first inner cover 121.

[0168] The second inner cover 122 is an inspection cover 4. The assembly and disassembly of the second inner cover 122 and the first inner cover 121 are relatively simple, which makes it convenient to maintain and repair the electrical components and / or terminal sockets on the circuit board 3 through the opening area 1211.

[0169] In some specific embodiments of this utility model, such as Figure 7 and Figure 11 As shown, the second inner cover 122 is the second inspection cover 42. The upper end of the second inspection cover 42 has a second mating structure 432. The first inner cover 121 has a second limiting structure 7. The first limiting structure 6 and the second limiting structure 7 are clamped together.

[0170] The second limiting structure 7 includes a first stop portion 7112 and a second stop portion 7121. The second mating structure 432 includes a first clamping portion 4321 and a second clamping portion 4322. The first clamping portion 4321 abuts against the side of the first stop portion 7112 near the mounting cavity 201. The first clamping portion 4321 applies a force away from the mounting cavity 201 to the first stop portion 7112. The second clamping portion 4322 abuts against the side of the second stop portion 7121 away from the mounting cavity 201. The second clamping portion 4322 applies a force close to the mounting cavity 201 to the second stop portion 7121, so as to clamp the second limiting structure 7 through the first clamping portion 4321 and the second clamping portion 4322.

[0171] When the second inspection cover 42 is flipped upwards relative to the first inner cover 121 by no more than 45 degrees, the second limiting structure 7 keeps the second mating structure 432 in a limited position, preventing the second inspection cover 42 from falling downwards. Furthermore, under the action of clamping force and gravity, when the second inspection cover 42 is flipped upwards relative to the first inner cover 121 by no more than 45 degrees, the second inspection cover 42 has a tendency to return to the position of the closed opening area 1211, that is, the second inspection cover 42 can achieve automatic reset.

[0172] The lower part of the second inspection cover 42 has a connecting structure 45, and the first inner cover 121 has an installation structure 500. The installation structure 500 is constructed as a screw post, and a second fixing hole 52 is provided on the screw post. The fixing screw passes through the connecting structure 45 and the second fixing hole 52 for fastening connection.

[0173] The upper part of the second inspection cover 42 is clamped and engaged, while the lower part is fixedly connected, which improves the connection reliability of the second inspection cover 42. When maintenance and repair are required on the electrical components and / or terminal sockets on the circuit board 3, the second inspection cover 42 can be rotated open by removing the fixing screws at the bottom. When the opening angle is less than 45 degrees, the second inspection cover 42 will not fall out and can automatically reset and close, allowing for one-handed screw tightening and convenient maintenance operations.

[0174] In some embodiments of this utility model, such as Figure 10 As shown, the inner cover 12 includes a first inner cover 121 and a second inner cover 122. The first inner cover 121 has an opening area 1211, and the second inner cover 122 is used to open and close the opening area 1211. The first inner cover 121 and the second inner cover 122 are made of 5VA-grade flame-retardant material, and the second inner cover 122 seals the opening area 1211, preventing air convection between the first receiving cavity 10 and the outside, leaving only space for the wiring harness to pass through, thus improving the fire safety of the electrical control box 100.

[0175] In some embodiments of this utility model, the outer cover 2 is located on the outermost side, with its upper part connected to the top plate 5 of the air conditioner housing 200 by a snap-fit ​​structure, and its lower part connected to the base of the air conditioner housing 200 by screws; the second inner cover 122 cooperates with the first inner cover 121 to cover the terminal sockets and other components inside the first receiving cavity 10, thus isolating the air convection between the inside and outside of the electrical control box 100, leaving only space for the wire harness to pass through, thereby improving the fire safety of the electrical control box 100; the first inner cover 121 has a wire groove and a wire buckle structure for standardizing the wiring routing; the box body 11 is used to install the electrical control board and electrical components, and together with the second inner cover 122 and the first inner cover 121, it forms the box assembly 1; in addition, the box body 11 has a wire inlet groove for guiding the wire harness to standardize the wiring routing.

[0176] In some embodiments of this utility model, such as Figure 7As shown, a wire harness structure 123 is provided on the side of the inner cover 12 facing the second receiving cavity 20. The inner cover 12 has a wire passage area 124. At least a portion of the wire harness connected to the circuit board 3 extends from the wire passage area 124 into the second receiving cavity 20. The second receiving cavity 20 is sealed except for the wire passage area 124.

[0177] The inner cover 12 has a wiring area 124, through which the wire harness connected to the circuit board 3 extends from the first receiving cavity 10 into the second receiving cavity 20 for connection to the external wiring harness of the control box 100. A wire harness structure 123 is provided on the side of the inner cover 12 facing the second receiving cavity 20. The wire harness structure 123 can limit the wire harness extending into the second receiving cavity 20, improving the neatness of the wire harness routing.

[0178] The second receiving cavity 20 is sealed except for the wire passing area 124. The second receiving cavity 20 is open at the wire passing area 124, allowing external wire harnesses to pass through, which facilitates the connection of wire harnesses extending into the second receiving cavity 20 with the wire harnesses connected to the circuit board 3.

[0179] In some embodiments of this utility model, such as Figure 7 As shown, the inner cover 12 has a through hole extending vertically at the wire passage area 124. A winding plate is provided on the side of the through hole away from the mounting cavity 201. The winding plate is constructed as a wire bundle structure 123. There are multiple winding plates and they are spaced apart in the vertical direction.

[0180] At least a portion of the wire harness connected to the circuit board 3 extends from the via into the second receiving cavity 20. The wire harness connected to the circuit board 3 extends into the second receiving cavity 20 and is wound on the winding board, thereby improving the routing regularity of the wire harness and reducing the wobbling of the wire harness in the second receiving cavity 20.

[0181] In some embodiments of this utility model, such as Figure 4 and Figure 12 As shown, a notch 21 is provided on the outer cover 2. The notch 21 is positioned opposite to the wire passage area 124. The external wiring harness of the electrical control box 100 can extend from the notch 21 to the second receiving cavity 20.

[0182] In some embodiments of this utility model, such as Figure 12 and Figure 13 As shown, the air conditioner 1000 is a ceiling-mounted air conditioner 1000 and includes an indoor unit 600 and a base 700. The indoor unit 600 is mounted on the base 700, and the electrical control box 100 is located on the side of the indoor unit 600.

[0183] In some embodiments of this utility model, such as Figure 12As shown, the indoor unit component 600 includes an indoor unit body 603 and an indoor unit base 601. The indoor unit body 603 is mounted above the indoor unit base 601 and is fixedly connected by screws. The base component 700 is mounted below the indoor unit base 601 and is fixedly connected by screws. The indoor unit component 600 also includes a mounting housing 602, which is fixedly connected to the indoor unit body 603 by screws. The electrical control box 100 is mounted above the indoor unit base 601 and is adjacent to the indoor unit body 603 and the mounting housing 602. The electrical control box 100 is fixedly connected to the indoor unit base 601 by screws and to the mounting housing 602 by screws.

[0184] In some embodiments of this utility model, such as Figure 12 and Figure 13 As shown, the electrical control box 100 is located on the side of the indoor unit component 600 and on the indoor unit base 601. The indoor unit base 601 has a positioning structure 6011 for positioning the electrical control box 100.

[0185] The electrical control box 100 is installed on the indoor unit base 601. The indoor unit base 601 has a positioning structure 6011, which is composed of one or more ribs. It is used to position the electrical control box 100 during disassembly and assembly. When assembling the electrical control box 100, it can be directly pushed to the positioning structure 6011 to ensure accurate positioning. The operation is convenient and quick.

[0186] In some embodiments of this utility model, such as Figure 13 As shown, the ventilation and heat exchange component 300 includes a heat exchange assembly 301 and a ventilation assembly 302. The heat exchange assembly 301 and the ventilation assembly 302 are installed adjacent to each other and together form the core of the air conditioner 1000. They are installed inside the indoor unit component 600 of the air conditioner 1000 and are respectively connected and fixed to the indoor unit base 601 with screws.

[0187] In some embodiments of this utility model, such as Figure 12 and Figure 13 As shown, the air conditioner 1000 is a ceiling-mounted air conditioner 1000, including a mounting bracket 800. The mounting bracket 800 is located on both sides of the indoor unit component 600 and is fixed to the indoor unit base 601 with screws. It can be an independent part or it can be integrally formed with the indoor unit component 600 or the base component 700, and can be used with the hanging rod assembly to achieve ceiling installation.

[0188] The 1000 ceiling-mounted air conditioner has a compact structure and occupies little space, making it widely applicable in small spaces such as kitchens and bathrooms. The 1000 ceiling-mounted air conditioner can be suspended in the ceiling, making installation convenient.

[0189] In some specific embodiments of this utility model, the air conditioner 1000 is a ceiling-mounted air conditioner 1000. In view of the problem that the maintenance and installation of existing kitchen air conditioners are inconvenient, the ceiling-mounted air conditioner 1000 is small in size, with a length, width and height of 580mm*260mm*260mm.

[0190] In some other embodiments of this utility model, the air conditioner 1000 is a ceiling-mounted air conditioner 1000 and includes an indoor unit component 600 and a base component 700. The base component 700 may also be disposed on the side of the indoor unit component 600; or, the indoor unit component 600 and the base component 700 are separately disposed, and a flexible connection such as an air duct is added between the indoor unit component 600 and the base component 700.

[0191] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0192] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0193] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0194] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0195] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0196] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises: an air conditioner shell, which defines an installation cavity for installing a ventilation and heat exchange component inside; an electric control box, which is arranged at a side of the air conditioner shell and comprises an electric circuit board and at least one maintenance cover, the electric circuit board is arranged vertically and one side thereof in the direction of the thickness of the board faces the installation cavity, and the maintenance cover is detachably arranged on the side of the electric circuit board in the direction of the thickness of the board and away from the installation cavity; wherein the upper end of the maintenance cover is provided with a matching structure, the air conditioner comprises a limiting structure, the limiting structure is detachably matched with the matching structure, and when matched, the limiting structure limits the downward movement of the matching structure.

2. The air conditioner of claim 1, wherein The maintenance cover comprises a first maintenance cover, the matching structure on the first maintenance cover is a first matching structure, the limiting structure matched with the first matching structure is a first limiting structure, and the first matching structure and the first limiting structure are hooking matched.

3. The air conditioner of claim 2, wherein The first matching structure is recessed in the direction facing the installation cavity to define a hooking groove open in the direction away from the installation cavity, and the first limiting structure extends downward from top to bottom in the direction close to the installation cavity to extend into the hooking groove.

4. The air conditioner of claim 2, wherein The electric control box comprises a box assembly and an outer cover, the box assembly forms a first accommodating cavity inside, the electric circuit board is arranged in the first accommodating cavity, and the outer cover is arranged on the side of the box assembly away from the installation cavity to form a second accommodating cavity with the box assembly, the outer connecting end of at least part of the wire harness connected with the electric circuit board extends into the second accommodating cavity, and the outer cover is the first maintenance cover.

5. The air conditioner of claim 4, wherein The first maintenance cover comprises a cover body, the first matching structure is connected to the upper end of the cover body and recessed in the direction facing the installation cover relative to the cover body to define a hooking groove open in the direction away from the installation cavity, and the top plate of the air conditioner shell comprises an extension section extending downward from the edge of the top plate, and the first limiting structure extends downward from top to bottom in the direction close to the installation cavity from the lower end of the extension section to extend into the hooking groove.

6. The air conditioner of claim 4, wherein The box assembly comprises a box body and an inner cover, the first accommodating cavity is defined between the box body and the inner cover, and the inner cover comprises at least one maintenance cover.

7. The air conditioner of claim 1, wherein The electric control box comprises a second maintenance cover, the matching structure on the second maintenance cover is a second matching structure, the limiting structure matched with the second matching structure is a second limiting structure, and the second matching structure and the second limiting structure are clamping matched.

8. The air conditioner of claim 7, wherein The second limiting structure comprises a first stop portion and a second stop portion, the second matching structure comprises a first clamping portion and a second clamping portion, the first clamping portion abuts against the side of the first stop portion close to the installation cavity, and the second clamping portion abuts against the side of the second stop portion away from the installation cavity to clamp the second limiting structure through the first clamping portion and the second clamping portion.

9. The air conditioner of claim 8, wherein The second limiting structure comprises a strip-shaped plate extending along the length direction of the upper end of the second access cover, the strip-shaped plate comprises a central segment and two end segments, the two end segments are located at two ends of the central segment respectively, the central segment is formed with a bottom-opened insertion hole, a portion of the central segment located on a side of the insertion hole away from the mounting cavity constitutes the first stop portion, and the two end segments constitute the second stop portion respectively; the second clamping portions are two and are arranged on two sides of the first clamping portion along the length direction, and the second clamping portions are arranged at intervals with the first clamping portion along the length direction.

10. The air conditioner of claim 9, wherein The strip-shaped plate further comprises an end segment located on a side of the two end segments away from the central segment, the lower surfaces of the end segment and the central segment are both convex downward relative to the lower surfaces of the two end segments, so as to form a limiting groove between the two end segments and between the central segment and the end segment, the upper end of the second access cover has a platform portion, the first clamping portion and the second clamping portion are both convex upward from edges of the platform portion away from the mounting cavity, and the platform portion further has a convex rib portion convex upward, the convex rib portion is located on a side of the second clamping portion close to the mounting cavity and is matched with the limiting groove.

11. The air conditioner of claim 9, wherein The two ends of the strip-shaped plate in the length direction are further provided with side clamping plates, and the upper end of the second access cover is clamped between the side clamping plates on two sides.

12. The air conditioner of claim 7, wherein The air conditioner comprises a box assembly, a first containing cavity is formed in the box assembly, the circuit board is arranged in the first containing cavity, the box assembly comprises a box body and an inner cover, the first containing cavity is defined between the box body and the inner cover, and the inner cover comprises at least one second access cover.

13. The air conditioner of claim 12, wherein The inner cover comprises a first inner cover and a second inner cover, the first inner cover has an opening area, the opening area is arranged opposite to the electrical elements and / or the terminal sockets on the circuit board, the second inner cover is used for opening and closing the opening area, the second inner cover is the second access cover, and the second limiting structure is integrated at the upper end of the first inner cover.

14. The air conditioner of claim 12, wherein The electric control box further comprises an outer cover, the outer cover is arranged on a side of the box assembly away from the mounting cavity, so as to form a second containing cavity between the outer cover and the box assembly, and the outer ends of at least part of the wire harness connected with the circuit board extend into the second containing cavity, and the outer cover is the access cover.

15. The air conditioner according to any one of claims 1-14, wherein The disconnection of the limiting structure and the cooperation structure is configured to be performed after the access cover is flipped more than a preset angle upward relative to the air conditioner shell from an initial state.

16. The air conditioner of claim 15, wherein The preset angle is not less than 30°.

17. The air conditioner of claim 1, wherein The disconnection of the limiting structure and the cooperation structure is configured to be realized through a translation movement of the access cover relative to the air conditioner shell, and the translation movement comprises at least one of upward translation and horizontal translation.

18. The air conditioner of claim 1, wherein A handle portion is arranged on the access cover.

19. The air conditioner of claim 1, wherein The lower part and / or the side edge of the access cover further has a connecting structure, the air conditioner comprises a mounting structure, and the mounting structure is snap-fitted with the connecting structure or is fastened and connected through fasteners.

20. The air conditioner of claim 1, wherein The electric control box comprises a box assembly and an outer cover, a first accommodating cavity is formed in the box assembly, the circuit board is arranged in the first accommodating cavity, the box assembly comprises a box body and an inner cover, and the first accommodating cavity is defined between the box body and the inner cover; the outer cover is arranged on a side of the box assembly away from the mounting cavity to form a second accommodating cavity with the box assembly, and the outer connecting end of at least part of the wire harness connected with the circuit board extends into the second accommodating cavity; and at least one of the outer cover and the inner cover comprises the maintenance cover.

21. The air conditioner of claim 20, wherein The outer cover is the maintenance cover and cooperates with the limiting structure integrated on the air conditioner shell. And / or, the inner cover comprises a first inner cover and a second inner cover, the first inner cover is provided with an opening area, the opening area is arranged opposite to the electrical element and / or the terminal socket on the circuit board, and the second inner cover is used for opening and closing the opening area; the second inner cover is the maintenance cover and cooperates with the limiting structure integrated on the first inner cover.

22. The air conditioner of claim 21, wherein A wire bundling structure is arranged on a side of the inner cover facing the second accommodating cavity, the inner cover is provided with a wire passing area, the outer connecting end of at least part of the wire harness connected with the circuit board extends into the second accommodating cavity through the wire passing area, and the second accommodating cavity is sealed except the wire passing area.

23. The air conditioner of claim 1, wherein The air conditioner is a ceiling type air conditioner and comprises an indoor unit part and a base part, the indoor unit part is arranged on the base part, and the electric control box is arranged on a side of the indoor unit part.

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