WO2024082384A1

WO2024082384A1 - Indoor unit of wall-mounted air conditioner

Info

Publication number: WO2024082384A1
Application number: PCT/CN2022/135276
Authority: WO
Inventors: 李轻
Original assignee: 广州视源电子科技股份有限公司; 合肥视研电子科技有限公司
Priority date: 2022-10-21
Filing date: 2022-11-30
Publication date: 2024-04-25
Also published as: CN218565574U

Abstract

The present application discloses an indoor unit of a wall-mounted air conditioner, comprising a base, a housing, a panel, and an electronic control assembly. The housing is disposed on the base; the panel is disposed on the front surface of the housing; the panel, the housing, and the base together define an accommodating cavity; the housing is provided with an air inlet and an air outlet spaced apart from each other, and both the air inlet and the air outlet are communicated with the accommodating cavity; the accommodating cavity is provided with a negative pressure area and a mounting area communicated with each other; the electronic control assembly comprises an electronic control box and an electronic control board; the electronic control box is disposed in the mounting area; the electronic control box is provided with a mounting cavity; the electronic control board is disposed in the mounting cavity; the mounting area is located at one end of the base; the electronic control box has a first side plate and a second side plate arranged at an angle; the first side plate faces the negative pressure area; the first side plate and the second side plate are each provided with first ventilation holes communicated with the mounting cavity, so as to form an airflow channel in the mounting cavity; and the electronic control board is located in the airflow channel. The indoor unit of the wall-mounted air conditioner has a good heat dissipation effect.

Description

Wall-mounted air conditioner indoor unit

This application claims priority to the Chinese patent application filed with the China Patent Office on October 21, 2022, with application number 202222794706.2, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of air conditioning, and in particular to a wall-mounted air conditioning indoor unit.

Background technique

Wall-mounted air conditioners are not restricted by the installation location and are easier to match with indoor decoration. They have the functions of purifying, ventilating and cooling indoor air.

The indoor unit of the air conditioner is an important part of the wall-mounted air conditioner, which usually includes an electric control box and a fan. Among them, the electric control box is equipped with a control device, which can provide protection for the control device. The control device will generate a lot of heat during operation, but the heat dissipation effect of the electric control box is not good, resulting in the inability of the control device to effectively dissipate heat, so that the temperature of the control device in the electric control box rises, thereby affecting the operation of the indoor unit of the air conditioner.

Summary of the invention

The purpose of the embodiments of the present application is to provide a wall-mounted air conditioner indoor unit with a simple structure and good heat dissipation effect.

To achieve this purpose, the present application embodiment adopts the following technical solutions:

A wall-mounted air conditioner indoor unit is provided, comprising a base, an outer shell, a panel and an electric control component, the outer shell is arranged on the base, the panel is arranged on the front surface of the outer shell, the panel, the outer shell and the base jointly define a accommodating cavity, the outer shell is provided with an air inlet and an air outlet at intervals, the air inlet and the air outlet are both communicated with the accommodating cavity, the accommodating cavity has a negative pressure area and an installation area that are communicated with each other, the electric control component comprises an electric control box and an electric control board, the electric control box is arranged in the installation area, the electric control box has an installation cavity, the electric control board is arranged in the installation cavity, the installation area is located at one end of the base, the electric control box has a first side plate and a second side plate arranged at an angle, the first side plate is opposite to the negative pressure area, the first side plate and the second side plate are both provided with a first ventilation hole communicated with the installation cavity to form an air flow channel in the installation cavity, and the electric control board is located in the air flow channel.

As a solution for the indoor unit of a wall-mounted air conditioner, it also includes a radiator, which is arranged on a side of the electric control panel facing the first side panel, and the radiator is adjacent to the first ventilation hole of the second side panel.

As a solution for a wall-mounted air conditioner indoor unit, the electric control box is provided with an opening connected to the installation cavity, and installation grooves are provided on two opposite cavity walls of the installation cavity. The installation grooves are connected to the opening, and the opposite ends of the electric control board are inserted into the installation grooves.

As a solution for the wall-mounted air conditioner indoor unit, it also includes a cover body, and the width of the installation groove gradually decreases from the opening toward the bottom of the installation cavity; and/or,

The distance between the groove bottoms of the two installation grooves gradually decreases from the opening toward the cavity bottom of the installation cavity.

As a solution for the indoor unit of a wall-mounted air conditioner, it also includes fasteners, and the electric control board is fixed in the installation cavity by the fasteners.

As a solution for the indoor unit of a wall-mounted air conditioner, it also includes a support member, one end of which abuts against the electric control board, and the other end abuts against the cavity wall of the installation cavity, and the support member is fixed between the electric control board and the inner wall of the electric control box by the fastener.

As a solution for a wall-mounted air conditioner indoor unit, the support member is provided with a first mounting hole and a second mounting hole at opposite ends thereof, the electric control board is provided with a third mounting hole adapted to the first mounting hole, a fourth mounting hole adapted to the second mounting hole is penetrated through the side wall of the electric control box, and at least two fasteners are provided, one of the fasteners passes through the third mounting hole and is inserted into the first mounting hole, and the other fastener passes through the fourth mounting hole and is inserted into the second mounting hole.

As a solution for the indoor unit of a wall-mounted air conditioner, the electric control board is electrically connected to the external device through wires, and a first wire groove for the wires to pass through is provided on the side wall of the electric control box.

As a solution for the indoor unit of a wall-mounted air conditioner, it also includes a cover body, which is arranged at the opening of the electric control box. The cover body is provided with a wire pressing portion protruding toward one end of the electric control box, and the wire pressing portion is inserted into the first wire passing groove to press the wire against the first wire passing groove.

As a solution for a wall-mounted air conditioner indoor unit, a first wire passing plate is provided in the installation cavity, and the first wire passing plate is spaced apart from the cavity wall of the installation cavity to form the first wire passing groove.

As an optional solution for the indoor unit of a wall-mounted air conditioner, a first arc-shaped opening is recessed at the notch of the first wire-passing groove; and/or,

The wire pressing portion has an end surface facing the first wire passing groove and is concavely provided with a second arc-shaped opening.

As a solution for a wall-mounted air conditioner indoor unit, the electric control box is further provided with a second wire passing groove for the wire to pass through, and the first wire passing groove and the second wire passing groove are arranged at intervals.

As a solution for the indoor unit of a wall-mounted air conditioner, a second wire passing plate is arranged at an interval outside the first side panel, and the second wire passing groove is formed between the second wire passing plate and the first side panel. A notch is arranged on the first side panel, and the notch is connected to the second wire passing groove. A wire buckle is arranged on the second wire passing plate, and the wire buckle fixes the wire in the second wire passing groove.

By arranging the first ventilation holes on both the first side plate and the second side plate of the electric control box, the heat dissipation efficiency of the electric control component is improved, and the heat generated by the electric control board in the electric control box during operation can be discharged outside the electric control box through the first ventilation holes. Furthermore, the electric control box is arranged on the installation area, and the first side plate of the electric control box is facing the negative pressure area. When the wall-mounted air conditioner is in operation, the negative pressure area forms a negative pressure, so that the airflow from the outside can enter the accommodating cavity from the air inlet. Since the second side plate is facing the air inlet, the airflow can directly enter the installation cavity of the electric control box from the first ventilation hole of the second side plate, and then the airflow sends the heat in the installation cavity from the first ventilation hole of the first side plate to the installation area. Since the installation area and the negative pressure area are connected, the airflow will enter the negative pressure area under the action of the negative pressure, and finally the heat will be discharged from the negative pressure area from the air outlet along with the airflow, thereby realizing the rapid heat dissipation of the wall-mounted air conditioner. The indoor unit of the wall-mounted air conditioner forms airflow through the action of the negative pressure area, and forms an airflow channel in the electric control box, and the electric control board is located in the airflow channel to actively dissipate heat for the electric control board, which greatly improves the efficiency compared with passive heat dissipation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a disassembled schematic diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present application;

FIG2 is an air flow diagram of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present application;

FIG3 is a schematic diagram of the disassembly of the electric control assembly of the embodiment of the present application;

FIG4 is a schematic structural diagram of a cover body according to an embodiment of the present application;

FIG5 is a schematic diagram of an electric control assembly according to an embodiment of the present application from a first viewing angle (the cover is not shown);

FIG6 is a schematic diagram of the electric control assembly according to the embodiment of the present application from a second viewing angle (the cover is not shown);

FIG7 is a schematic diagram of the coordination of the electric control board, the fastener, the support member and the electric control box according to an embodiment of the present application;

FIG. 8 is a schematic diagram of the structure of the electric control box according to an embodiment of the present application.

In the figure:

1. Base; 11. Installation area; 12. Negative pressure area; 2. Electric control box; 21. Installation cavity; 211. Installation slot; 22. First side panel; 221. First ventilation hole; 222. Notch; 23. Second side panel; 24. First wire slot; 25. Second wire slot; 26. First wire board; 27. Second wire board; 271. Wire pressing buckle; 28. Snap-on; 29. Third side panel; 291. Fourth installation hole; 30. Fourth side panel; 3. Electric control board; 31. Third installation hole; 4. Radiator; 5. Housing; 51. Air inlet; 52. Air outlet; 6. Cover; 61. Wire pressing part; 611. Second arc-shaped opening; 62. Slot; 7. Fastener; 8. Support member; 81. First installation hole; 82. Second installation hole; 9. Panel.

Detailed ways

The technical solutions of the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments are only part of the embodiments of the present application.

As shown in Figures 1 to 3, the present application discloses a wall-mounted air conditioner indoor unit including a main body, a ventilator, a heat exchanger and an electric control component. The main body includes a base 1, a shell 5 and a panel 9. The shell 5 is arranged on the base 1, and the panel 9 is arranged on the front surface of the shell 5. The shell 5 contains the base 1 therein. The panel 9, the shell 5 and the base 1 jointly define a receiving cavity. A grid-shaped air inlet 51 is arranged on the upper surface of the shell 5, and an air outlet 52 is arranged on the lower front part of the shell 5. The air inlet 51 and the air outlet 52 are both connected to the receiving cavity. The receiving cavity has a negative pressure area 12 and an installation area 11 that are connected to each other. The ventilator and the heat exchanger are arranged in the negative pressure area, and the electric control component is arranged in the installation area 11. After the ventilator is started, a negative pressure will be formed in the negative pressure area 12, so that the airflow can enter the receiving cavity from the air inlet 51, and then the airflow is cooled or heated by the heat exchanger and then discharged from the air outlet 52, thereby realizing the cooling or heating function of the air conditioner.

The electric control assembly includes an electric control box 2 and an electric control board 3. The electric control box 2 is arranged in the installation area 11. The electric control box 2 has an installation cavity 21. The electric control board 3 is arranged in the installation cavity 21. The electric control box 2 has a first side plate 22 and a second side plate 23 arranged at an angle. The first side plate 22 faces the negative pressure area 12, and the second side plate 23 faces the air inlet 51, so as to prevent the housing 5 from blocking the air inlet of the first ventilation hole 221 on the second side plate 23. The first side plate 22 and the second side plate 23 are both provided with a first ventilation hole 221 connected with the installation cavity 21 to form an air flow channel in the installation cavity 21, and the electric control board 3 is located in the air flow channel. By providing the first ventilation hole 221 on the first side plate 22 and the second side plate 23 of the electric control box 2, the heat dissipation efficiency of the electric control assembly is improved, and the heat generated by the electric control board 3 in the electric control box 2 during operation can be discharged out of the electric control box 2 through the first ventilation hole 221. Furthermore, the electric control box 2 is arranged on the installation area 11, and the first side panel 22 of the electric control box 2 faces the negative pressure area 12. When the wall-mounted air conditioner is in operation, the negative pressure area 12 forms a negative pressure so that the external airflow can enter the accommodating cavity from the air inlet 51. Since the second side panel 23 faces the air inlet 51, the airflow can directly enter the installation cavity 21 of the electric control box 2 from the first ventilation hole 221 of the second side panel 23, and then the airflow sends the heat in the installation cavity 21 from the first ventilation hole 221 of the first side panel 22 to the installation area 11. Since the installation area 11 and the negative pressure area 12 are connected, the airflow will enter the negative pressure area 12 under the action of negative pressure, and finally the heat will be discharged from the negative pressure area 12 along with the airflow from the air outlet 52, thereby realizing the rapid heat dissipation of the wall-mounted air conditioner. The wall-mounted air conditioner forms an airflow through the negative pressure area 12, and forms an airflow channel in the electric control box 2, and the electric control board 3 is located in the airflow channel to actively dissipate heat for the electric control board 3, which greatly improves the efficiency of passive heat dissipation. In addition, the installation area 11 is set at one end of the base 1, and the electric control box 2 is installed on the installation area 11, which can achieve heat dissipation of the electric control components without affecting the air inlet and outlet of the negative pressure area 12.

Optionally, a dustproof net is detachably provided at the air inlet 51 to prevent dust or mosquitoes from entering the accommodating cavity. In other embodiments, the dustproof net can be welded to the housing 5 or the dustproof net can be integrally formed, which is not limited to this embodiment.

Optionally, the first side plate 22 and the second side plate 23 are vertically arranged, and this design forms a 90° airflow channel in the installation cavity 21, which can better remove the heat in the installation cavity 21. Of course, in other embodiments, the angle between the first side plate 22 and the second side plate 23 is an acute angle or an obtuse angle, which is not limited to this embodiment.

In one embodiment, the first side plate 22 and the second side plate 23 are arranged opposite to each other, and the electric control board 3 is located between the first side plate 22 and the second side plate 23. This design allows the airflow entering from the first ventilation hole 221 to blow directly onto the electric control board 3 to directly take away the heat on the electric control board 3.

Since the electric control board 3 in the electric control box 2 integrates the inner and outer panels of the air conditioner, the functions such as the power supply unit, the outdoor fan drive unit, and the outdoor compressor drive unit are integrated on the electric control board 3. A large amount of heat will be generated during the operation of the electric control board 3. Therefore, it is necessary to further improve the heat dissipation efficiency of the electric control board 3. In this embodiment, as shown in Figures 2 and 4, a radiator 4 is arranged on the electric control board 3, and the radiator 4 is located on the side of the electric control board 3 facing the first side panel 22, and the radiator 4 is adjacent to the first ventilation hole 221 of the second side panel 23. In other words, the radiator 4 is in contact with the second side panel 23, or the radiator 4 is in a position with a small spacing from the second side panel 23, so that when the radiator 4 is in this position, it is closer to the first ventilation hole 221 than other positions. It is understandable that by arranging the radiator 4 on the electric control board 3, the heat on the electric control board 3 can be quickly transferred to the radiator 4, and then the radiator 4 uses its own heat dissipation characteristics to dissipate the heat in the installation cavity 21, and the radiator 4 is close to the first ventilation hole 221 of the second side plate 23, and is located in the air flow channel, so that the airflow entering the first ventilation hole 221 can quickly bring the heat emitted from the radiator 4 out of the installation cavity 21 from the first ventilation hole 221 of the first side plate 22, so as to achieve efficient heat dissipation of the electric control components of the wall-mounted air conditioner. In other embodiments, the radiator 4 can also be arranged on other sides of the electric control board 3.

Specifically, the radiator 4 includes a mounting plate and a plurality of radiating fins. The mounting plate is arranged on the electric control board 3. All radiating fins are arranged at intervals on the mounting plate. The radiator 4 can dissipate heat quickly by arranging a plurality of radiating fins.

Optionally, the mounting plate and the heat dissipation fins are both made of aluminum metal material, which is light in weight and has good heat dissipation effect. In other embodiments, the heat dissipation fins and the mounting plate can also be made of other materials, not limited to this embodiment.

In this embodiment, as shown in Figures 4 and 5, the electric control box 2 is provided with an opening connected to the installation cavity 21, and installation grooves 211 are provided on the two opposite cavity walls of the installation cavity 21. The installation grooves 211 are connected to the opening, and the opposite ends of the electric control board 3 are inserted into the installation grooves 211 to facilitate the disassembly and assembly of the electric control board 3 in the electric control box 2.

Specifically, the width of the mounting groove 211 gradually decreases from the opening toward the bottom of the mounting cavity 21. It should be noted that the width of the mounting groove 211 refers to the distance between the two relative groove walls along the length direction of the mounting groove 211. Through this design, the shape of the mounting groove 211 is similar to a trumpet shape, which can accurately position the electric control board 3. During the insertion process of the electric control board 3, the size of the mounting groove 211 gradually decreases, so that the groove wall of the mounting groove 211 gradually increases the limit of the electric control board 3. After the electric control board 3 is inserted into the bottom, it is pre-fixed in the electric control box 2 to limit the movement of the electric control board 3 in the front and rear directions.

In another embodiment, the spacing between the bottoms of the two mounting grooves 211 gradually decreases from the opening toward the bottom of the mounting cavity 21, so that when the electric control board 3 is inserted into the two mounting grooves 211, the bottoms of the two mounting grooves 211 gradually increase the limit of the electric control board 3 to limit the movement of the electric control board 3 in the left and right directions.

In the actual production process, the width of the installation groove 211 and the distance between the bottoms of the two installation grooves 211 gradually decrease from the opening toward the bottom of the installation cavity 21. During the installation of the electric control board 3, the installation groove 211 can gradually enhance the limitation of the front and rear directions and the left and right directions of the electric control board 3 at the same time, so as to improve the installation stability of the electric control board 3.

Specifically, guide portions (not shown in the drawings) are provided on opposite sides of the electric control board 3, and the shape of the guide portions is adapted to the mounting groove 211, so that after the electric control board 3 is installed in the mounting groove 211, the guide portions cooperate with the mounting groove 211, and there will be no gap between the groove wall of the mounting groove 211 and the electric control board 3, so that the electric control board 3 can be installed in the electric control box 2 more stably.

Optionally, the cross section of the electric control box 2 is similar to a rectangular structure, wherein the electric control box 2 has a third side plate 29 arranged opposite to the first side plate 22, and the electric control box 2 has a fourth side plate 30 arranged opposite to the second side plate 23. The electric control box has a simple structure and is easy to produce.

In this embodiment, the two mounting grooves 211 are respectively arranged on the second side plate 23 and the fourth side plate 30. When the electric control board 3 is installed in the mounting grooves 211, the electric control board 3 is perpendicular to the second side plate 23, and because the second side plate 23 and the first side plate 22 are also vertically arranged, so that the largest side of the electric control board 3 faces the first side plate 22, when the airflow entering the first ventilation hole 221 on the second side plate 23 blows on the electric control board 3, the airflow can quickly take out the heat from the first ventilation hole 221 of the first side plate 21, thereby improving the heat dissipation effect.

Optionally, two mounting plates are provided on opposite side walls of the mounting cavity 21 and protrude toward the interior of the mounting cavity 21 , and a mounting groove 211 is formed between the two mounting plates.

Optionally, the mounting groove 211 is formed by punching the side wall of the electric control box 2 from inside to outside. The mounting groove 211 formed by punching has higher strength and lower processing cost.

In this embodiment, one of the two mounting grooves 211 is formed by stamping the side wall of the electric control box 2 , and the other mounting groove 211 is formed by arranging two mounting plates on the cavity wall of the mounting cavity 21 at intervals.

Specifically, there is a distance between the mounting groove 211 and the first side plate 22 and the third side plate 29 respectively. Therefore, when the electric control board 3 is installed in the mounting groove 211, the electric control board 3 is also spaced from the first side plate 22 and the third side plate 29 to avoid the electric control board 3 being in close contact with the first side plate 22 and the third side plate 29, so that the air flow around the electric control board 3 is good, thereby improving the heat dissipation effect of the electric control board 3.

Since the electric control board 3 integrates the functions of the indoor and outdoor electric control boards and a radiator 4 is provided on the electric control board 3, the weight of the electric control board 3 is heavier than that of an ordinary electric control board 3, as shown in FIGS. 5 to 7, in order to further improve the installation stability of the electric control board 3 in the installation cavity 21, the electric control board 3 is fixed in the installation cavity 21 by fasteners 7.

Specifically, a support member 8 is provided between the electric control board 3 and the cavity wall of the installation cavity 21 to support the electric control board 3. The electric control board 3 is a precision device, and the electric control board 3 is spaced from the third side plate 29 and the first side plate 22. Therefore, only the end of the electric control board 3 is supported by the groove wall of the installation groove 211, and the middle part is relatively weak and easily damaged under the action of external force. By providing the support member 8 between the electric control board 3 and the installation cavity 21 to support the electric control board 3, the pressure resistance of the electric control board 3 is increased, thereby improving the service life of the electric control board 3.

Since the electric control box 2 is generally produced by a drafting method, it is impossible to directly form the support member 8 on the electric control box 2 in one piece during production, so the support member 8 and the electric control box 2 are detachably connected. In this embodiment, one end of the support member 8 abuts against the electric control board 3, and the other end abuts against the cavity wall of the mounting cavity 21, and the support member 8 is fixed between the electric control board 3 and the inner side wall of the electric control box 2 by a fastener 7. Specifically, the support member 8 is provided with a first mounting hole 81 and a second mounting hole 82 at opposite ends, the electric control board 3 is provided with a third mounting hole 31 adapted to the first mounting hole 81, and the side wall of the electric control box 2 is provided with a fourth mounting hole 291 adapted to the second mounting hole 82, and at least two fasteners 7 are provided, one of which passes through the third mounting hole 31 and is inserted into the first mounting hole 81, and the other fastener 7 passes through the fourth mounting hole 291 and is inserted into the second mounting hole 82. In this embodiment, each support member 8 is locked by two fasteners 7, so that the stability between the support member 8, the electric control board 3 and the electric control box 2 is high. Optionally, the fastener 7 is a screw, and the screw is screwed into the first mounting hole 81 and the third mounting hole 31 to achieve a threaded connection between the electric control board 3 and the support member 8, and the screw is screwed into the second mounting hole 82 and the fourth mounting hole 291 to achieve a threaded connection between the support member 8 and the third side plate 29. In this embodiment, six support members 8 are provided, 12 fasteners 7 are provided, and the six support members 8 are arranged at intervals to improve the support effect and installation stability of the electric control board 3. In other embodiments, the number of support members 8 can be 2, 3 or other numbers, not limited to this embodiment.

Optionally, the support column is used for support, and a through hole is provided in the axial direction of the support column, and a first mounting hole 81 and a second mounting hole 82 are formed at opposite ends of the through hole. During the processing, a through hole is drilled through the support column by a drilling tool. Compared with a blind hole, the through hole does not need to consider the depth of the drilling, and the processing is convenient. In addition, this design does not need to drill holes on the opposite sides of the support column, and the operation steps are simple, and the processing cost is low.

In other embodiments, a through hole is provided along the axis of the support member 8. Each support member 8 can lock the support member 8, the electric control board 3 and the third side panel 29 by only one screw. During the specific installation, the screw can be passed through the fourth mounting hole 291, the through hole and the third mounting hole 31 in sequence to achieve fixation.

In this embodiment, as shown in Figures 5 and 8, the electric control board 3 is connected to the external device through wires (not shown in the drawings), and a first wire groove 24 for the wires to pass through is provided on the side wall of the electric control box 2. The operator can freely thread the wires at the first wire groove 24, which is convenient for the installation of the electric control component.

Specifically, as shown in FIG3 and FIG4 , a cover 6 is provided at the opening of the electric control box 2, and a wire pressing portion 61 is provided at one end of the cover 6 protruding toward the electric control box 2, and the wire pressing portion 61 is inserted into the first wire groove 24 to press the wires tightly into the first wire groove 24. It is understandable that after the electric control board 3 and wires and other equipment are installed, in order to avoid the opening of the electric control box 2 from being exposed, a cover 6 will be provided on the opening cover of the electric control box 2, and the cover 6 can also play the role of insect prevention and waterproofing. The wire pressing portion 61 of the cover 6 can be inserted into the first wire groove 24 to press the wires to prevent the wires from being pulled out under the action of external force, so as to protect the wires and ensure the stability of the wire installation.

Specifically, a first wire-passing plate 26 is disposed in the installation cavity 21, and the first wire-passing plate 26 is spaced apart from the cavity wall of the installation cavity 21 to form a first wire-passing groove 24. During installation, the wire is placed at the notch of the first wire-passing groove 24, and then the wire pressing portion 61 is inserted into the first wire-passing groove 24 to achieve pressing of the wire.

Optionally, a first arc-shaped opening is recessed at the notch of the first wire-passing slot 24, and the wire passes through the first arc-shaped opening. The first arc-shaped opening can limit the wire and reduce sliding of the wire during installation.

Optionally, a second arc-shaped opening 611 is recessed on one end surface of the wire pressing portion 61 facing the first wire passing groove 24, and the second arc-shaped opening 611 can also limit the wire. During the process of inserting the wire pressing portion 61 into the first wire passing groove 24, the first arc-shaped opening and the second arc-shaped opening 611 act together on the wire to further improve the stability of the wire.

In this embodiment, as shown in Fig. 3, the electric control box 2 and the cover body 6 are snap-connected. Specifically, a snap-on protrusion 28 is protruding from the outer wall of the electric control box 2, and a snap-on groove 62 is provided on the cover body 6 corresponding to the snap-on protrusion 28. The snap-on protrusion 28 is snap-connected in the snap-on groove 62, and the snap-on connection is convenient for assembly and disassembly.

In one embodiment, the electric control box 2 and the cover body 6 are threadedly connected. Specifically, a fifth mounting hole is set at the open end of the electric control box 2, and a sixth mounting hole is set on the cover body 6. The screw passes through the fifth mounting hole and is inserted into the sixth mounting hole to fix the cover body 6 on the electric control box 2, and the threaded connection has high stability.

In the actual production process, the electric control box 2 is provided with a clamping protrusion 28 on one side and a fifth mounting hole on the other side. Similarly, the cover body 6 is provided with a clamping slot 62 on one side and a sixth mounting hole on the other side. During installation, the clamping protrusion 28 is first clamped in the clamping slot 62, and then the screws are screwed into the sixth mounting hole and the fifth mounting hole. The electric control box 2 and the cover body 6 are used together in two ways of clamping thread connection, which not only ensures the efficiency of disassembly and assembly, but also ensures the stability of the connection between the two.

In this embodiment, as shown in Figures 4 and 5, the electric control box 2 is further provided with a second wire groove 25 for the wires to pass through, and the first wire groove 24 and the second wire groove 25 are arranged at intervals. By spacing the first wire groove 24 and the second wire groove 25, the wires in the electric control box 2 can be selected to pass through different wire grooves, and the wiring flexibility is high.

Specifically, the first wire groove 24 is arranged on the side panel opposite to the electric control box 2 and the second side panel 23, and the second wire groove 25 is arranged on the first side panel 22. Therefore, the first wire groove 24 and the second wire groove 25 are located on different side panels, and the wires can be threaded in different directions when wiring.

Specifically, a second wire passing plate 27 is arranged outside the first side plate 22, and a second wire passing groove 25 is formed between the second wire passing plate 27 and the first side plate 22. A notch 222 is arranged on the first side plate 22, and the notch 222 is connected to the second wire passing groove 25. A wire pressing buckle 271 is arranged on the second wire passing plate 27 to fix the wire in the second wire passing groove 25 through the wire pressing buckle 271, thereby improving the stability of the wire in the second wire passing groove 25.

Specifically, one side of the second side plate 23 extends outward to be connected to the second wire-passing plate 27 , a support plate is provided at the bottom of the second wire-passing plate 27 , and one end of the support plate away from the second wire-passing plate 27 is connected to the first side plate 22 .

Optionally, the wire pressing buckle 271 is formed by bending the second wire passing plate 27 , and the wire pressing buckle 271 formed by bending has a high structural strength and is not easily damaged.

Claims

A wall-mounted air conditioner indoor unit, comprising a base, an outer shell, a panel and an electric control assembly, the outer shell is arranged on the base, the panel is arranged on the front surface of the outer shell, the panel, the outer shell and the base jointly define a accommodating cavity, the outer shell is provided with an air inlet and an air outlet at intervals, the air inlet and the air outlet are both communicated with the accommodating cavity, the accommodating cavity has a negative pressure area and an installation area that are communicated with each other, the electric control assembly comprises an electric control box and an electric control board, the electric control box is arranged in the installation area, the electric control box has an installation cavity, the electric control board is arranged in the installation cavity, the installation area is located at one end of the base, the electric control box has a first side plate and a second side plate arranged at an angle, the first side plate is opposite to the negative pressure area, the first side plate and the second side plate are both provided with a first ventilation hole communicated with the installation cavity to form an air flow channel in the installation cavity, and the electric control board is located in the air flow channel.
The wall-mounted air conditioner indoor unit according to claim 1 further includes a radiator, wherein the radiator is arranged on a side of the electric control panel facing the first side panel, and the radiator is adjacent to the first ventilation hole of the second side panel.
According to the wall-mounted air conditioner indoor unit according to claim 1 or 2, wherein the electric control box is provided with an opening connected to the installation cavity, and installation grooves are provided on two opposite cavity walls of the installation cavity, the installation grooves are connected to the opening, and the opposite ends of the electric control board are inserted into the installation grooves.
The wall-mounted air conditioner indoor unit according to claim 3, wherein the width of the mounting groove gradually decreases from the opening toward the bottom of the mounting cavity; and/or,

The distance between the groove bottoms of the two installation grooves gradually decreases from the opening toward the cavity bottom of the installation cavity.
The wall-mounted air conditioner indoor unit according to claim 3 further comprises a fastener, and the electric control board is fixed in the installation cavity by the fastener.
The wall-mounted air conditioner indoor unit according to claim 5 further includes a support member, one end of which abuts against the electric control board, and the other end abuts against the cavity wall of the installation cavity, and the support member is fixed between the electric control board and the inner wall of the electric control box by the fastener.
The wall-mounted air conditioner indoor unit according to claim 6, wherein the support member is provided with a first mounting hole and a second mounting hole at opposite ends thereof, the electric control board is provided with a third mounting hole adapted to the first mounting hole, a fourth mounting hole adapted to the second mounting hole is penetrated through the side wall of the electric control box, and at least two fasteners are provided, one of the fasteners passes through the third mounting hole and is inserted into the first mounting hole, and the other fastener passes through the fourth mounting hole and is inserted into the second mounting hole.
According to the wall-mounted air conditioner indoor unit according to claim 1 or 2, the electric control board is electrically connected to the external device through a wire, and a first wire groove for the wire to pass through is provided on the side wall of the electric control box.
The wall-mounted air conditioner indoor unit according to claim 8 further includes a cover body, wherein the cover body covers the opening of the electric control box, and the cover body is provided with a wire pressing portion protruding toward one end of the electric control box, and the wire pressing portion is inserted into the first wire passing groove to press the wire tightly into the first wire passing groove.
The wall-mounted air conditioner indoor unit according to claim 9, wherein a first wire passing plate is provided in the installation cavity, and the first wire passing plate is spaced from the cavity wall of the installation cavity to form the first wire passing groove.
The wall-mounted air conditioner indoor unit according to claim 9, wherein a first arc-shaped opening is recessed at the notch of the first wire-passing groove; and/or,

The wire pressing portion has an end surface facing the first wire passing groove and is concavely provided with a second arc-shaped opening.
The wall-mounted air conditioner indoor unit according to claim 8, wherein the electric control box is further provided with a second wire groove for the wire to pass through, and the first wire groove and the second wire groove are arranged at intervals.
The wall-mounted air conditioner indoor unit according to claim 12, wherein a second wire passing plate is spaced apart outside the first side panel, the second wire passing groove is formed between the second wire passing plate and the first side panel, a notch is provided on the first side panel, the notch is connected to the second wire passing groove, a wire buckle is provided on the second wire passing plate, and the wire buckle fixes the wire in the second wire passing groove.