Outdoor unit and air conditioner

Abstract

The outdoor unit comprises a top cover plate, a right side plate and an electric appliance cover plate, a mounting groove is formed in the right side plate, the electric appliance cover plate is mounted in the mounting groove, the mounting groove extends to the top of the right side plate, a limiting groove is formed between the top cover plate and the mounting groove, and the top of the electric appliance cover plate is limited in the limiting groove; the outdoor unit further comprises an electric control box, a base plate and a middle partition plate, the middle partition plate is installed on the base plate, the interior of the outdoor unit is divided into a fan cavity and a compressor cavity by the middle partition plate, a wiring terminal box is installed on the electric control box, a wiring cavity is formed in the wiring terminal box, and the wiring cavity and the compressor cavity are arranged in a sealed mode. According to the outdoor unit, the waterproof performance of the outdoor unit is improved, and then the safety performance of the outdoor unit is improved; and 2, the wiring cavity and the compressor cavity are sealed, so that the wiring cavity is not communicated with the compressor cavity, the explosion-proof performance of the outdoor unit is improved, and the safety performance of the outdoor unit is further improved.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning, and in particular to an outdoor unit and an air conditioner. Background Art

[0002] Air conditioners are divided into integrated air conditioners and split air conditioners. Split air conditioners include an indoor unit and an outdoor unit. The indoor unit and the outdoor unit have housings respectively. Electrical components are arranged in the housing of the outdoor unit. The wiring terminals of the electrical components are electrically connected to the indoor unit through wires. Usually, the housing of the outdoor unit is in the shape of a box. A mounting opening adapted to the wiring terminal is arranged on the side panel of the housing of the outdoor unit. The wire connected to the wiring terminal passes through the mounting opening. An electrical cover is arranged at the mounting opening. However, the waterproof performance of the electrical cover in the prior art is poor, and water can easily enter the outdoor unit, causing safety hazards.

[0003] Refrigerant, also known as coolant, refrigerant, or snow seed, is a medium substance used to complete energy conversion in various heat engines. Refrigerants commonly used in the current air-conditioning and refrigeration industry, such as R22, not only have a significant destructive effect on the ozone layer, but also have a significant greenhouse effect. According to the provisions of the Montreal Protocol, the use of refrigerants such as R22 that are not conducive to environmental protection will be fully restricted worldwide in 2030. However, emerging environmentally friendly refrigerants that are generally favored at present, such as R290, have the disadvantages of being flammable and explosive. When used in air conditioners, their leakage needs to be strictly controlled, which may bring dangers.

[0004] The outdoor unit is equipped with a circuit board, and the electric control box in the outdoor unit is the main structure to ensure the normal and reliable operation of the circuit board. When the electric control box is in use, there will be occasional electric sparks. When the flammable and explosive emerging environmentally friendly refrigerant leaks in the outdoor unit, the leakage concentration reaches a certain level, combined with the occasional electric sparks inside the electric control box, an electric ignition effect will occur, causing the product to burn or explode, bringing safety risks to the user's normal use.

[0005] In summary, the safety performance of the outdoor unit in the prior art is relatively poor. Not only is the waterproof performance poor, but it is also prone to explosion.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide an outdoor unit and an air conditioner to solve the problem that the outdoor unit in the prior art not only has poor waterproof performance, but is also prone to explosion and has poor overall safety performance.

[0008] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0009] An outdoor unit, the outdoor unit includes a top cover plate, a right side plate and an electrical cover plate, the right side plate is provided with an installation groove, the electrical cover plate is installed in the installation groove, the installation groove extends to the top of the right side plate, a limiting groove is formed between the top cover plate and the installation groove, the top of the electrical cover plate is limited in the limiting groove on the inner side of the top cover plate; the outdoor unit also includes an electric control box, a chassis and a middle partition plate, the middle partition plate is installed on the chassis, the middle partition plate divides the interior of the outdoor unit into a fan chamber and a compressor chamber, a wiring terminal box is installed on the electric control box, a wiring chamber is provided in the wiring terminal box, and the wiring chamber and the compressor chamber are sealed.

[0010] The outdoor unit described in the present invention has the following advantages: first, the top of the electrical cover is limited in the limiting groove on the inner side of the top cover, which can prevent water from entering the interior of the outdoor unit from the top of the electrical cover, thereby improving the waterproof performance of the outdoor unit, thereby improving the safety performance of the outdoor unit, and at the same time improving the installation strength of the electrical cover; second, the sealing arrangement between the wiring chamber and the compressor chamber makes the wiring chamber and the compressor chamber not connected, and if the refrigerant leaks, the refrigerant in the compressor chamber can be prevented from entering the wiring terminal box, thereby reducing the risk of explosion caused by the accumulation of refrigerant leakage, thereby ensuring the reliable operation of the wiring terminal box, improving the safety performance of the wiring terminal box, thereby improving the explosion-proof performance of the outdoor unit, and improving the safety performance of the outdoor unit.

[0011] Furthermore, a folded convex edge is provided on the top of the electrical appliance cover plate, and the folded convex edge cooperates with the limiting groove.

[0012] On the one hand, this setting can prevent water from entering the outdoor unit from the top of the electrical cover, thereby improving the waterproof performance of the outdoor unit and thus improving the safety performance of the outdoor unit; on the other hand, it also improves the installation strength of the electrical cover.

[0013] Furthermore, a wiring window is provided in the installation groove, and waterproof bosses are provided around the wiring window.

[0014] This arrangement can further prevent water from entering the interior of the outdoor unit from around the wiring window, further improving the waterproof performance of the outdoor unit, thereby improving the safety performance of the outdoor unit.

[0015] Furthermore, a first mounting hole is set in the mounting groove, and a second mounting hole is set on the electrical cover plate. The second mounting hole cooperates with the first mounting hole, and a third fastener passes through the second mounting hole and the first mounting hole to mount the electrical cover plate in the mounting groove.

[0016] Furthermore, a handle is provided on the electrical appliance cover, and the handle is used for carrying the outdoor unit.

[0017] This setting makes it easy to transport the outdoor unit.

[0018] Furthermore, the electrical appliance cover is integrally formed by injection molding.

[0019] This arrangement improves the structural strength of the electrical appliance cover.

[0020] Furthermore, a wiring heat dissipation portion is provided on the electrical cover plate, the wiring heat dissipation portion is provided to protrude toward the outside of the outdoor unit, and a wiring channel is formed between the wiring heat dissipation portion and the mounting groove.

[0021] This arrangement facilitates wiring and heat dissipation, and the wiring heat dissipation portion is arranged to protrude toward the outside of the outdoor unit to prevent water from entering the interior of the outdoor unit from the wiring heat dissipation portion, further improving the waterproof performance of the outdoor unit, thereby improving the safety performance of the outdoor unit.

[0022] Furthermore, the electric control box is an integrated aluminum casting.

[0023] The arrangement utilizes an aluminum casting integrated molding arrangement to ensure the structural strength of the electric control box so that it meets explosion-proof requirements, while also improving the efficiency of the processing, production and assembly of the electric control box.

[0024] Furthermore, a fresh air module is arranged on the electrical control box, and the fresh air module includes an air inlet device and an air outlet device. A accommodating cavity is arranged in the electrical control box, the air inlet device is connected with the external space and is used to introduce air into the accommodating cavity, and the air outlet device is connected with the fan cavity, and is used to discharge the air inside the accommodating cavity; wherein the air inlet device is arranged in an inclined downward shape from one end close to the electrical control box to one end away from the electrical control box.

[0025] By arranging a fresh air module including an air inlet device and an air outlet device on the electric control box, when in use, since the air outlet device is connected with the fan cavity, when the fan is in use, a negative pressure is generated in the fan cavity of the outdoor unit, and the outdoor air enters the accommodating cavity through the air inlet device to cool the electric control board device, and then the mixed and cooled gas flows to the fan cavity through the air outlet device, and finally is discharged to the outside of the outdoor unit, so as to ensure the heat dissipation effect of the electric control box and the electric control board device inside it. Since the electric control box introduces external fresh air through the air inlet device, it is connected with the external space, and the air inlet device is inclined from one end close to the electric control box to the end away from the electric control box The downward arrangement can prevent rainwater or condensation water from being brought into the electric control box by external air along the air inlet device, thereby ensuring the reliable use of electrical components inside the electric control box. At the same time, by introducing a fresh air module flowing to the electric control box, it can prevent flammable and explosive emerging environmentally friendly refrigerants from entering the electric control box and accumulating to an explosive concentration when leaking. Even if there is a refrigerant leakage, the air in the containing cavity of the electric control box can be continuously replaced under the action of the air inlet device and the air outlet device arranged on the electric control box, reducing the risk of refrigerant detonating when the electric control board device emits an electric spark, thereby improving the safety performance of the electric control box and thereby improving the safety performance of the outdoor unit.

[0026] The present invention provides an outdoor unit and an air conditioner. Compared with the prior art, the outdoor unit of the present invention has the following beneficial effects:

[0027] 1) In the outdoor unit and air conditioner described in the present invention, the top of the electrical cover is limited in the limiting groove on the inner side of the top cover. On the one hand, it can prevent water from entering the interior of the outdoor unit from the top of the electrical cover, thereby improving the waterproof performance of the outdoor unit and further improving the safety performance of the outdoor unit; on the other hand, it also improves the installation strength of the electrical cover.

[0028] 2) In the outdoor unit and air conditioner described in the present invention, a sealing arrangement between the wiring cavity and the compressor cavity makes the wiring cavity and the compressor cavity not connected. If the refrigerant leaks, the refrigerant in the compressor cavity can be prevented from entering the wiring terminal box, thereby reducing the risk of explosion caused by accumulation of refrigerant leakage, thereby ensuring the reliable operation of the wiring terminal box, improving the safety performance of the wiring terminal box, and further improving the explosion-proof performance of the outdoor unit, thereby improving the safety performance of the outdoor unit.

[0029] 3) An outdoor unit and air conditioner described in the present invention, by arranging a fresh air module including an air inlet device and an air outlet device on the electric control box, when in use, since the air outlet device is connected to the fan cavity, when the fan is in use, the fan cavity of the outdoor unit generates a negative pressure, and the outdoor air enters the interior of the electric control box accommodating cavity through the air inlet device to cool the electric control board device, and then the mixed and cooled gas flows to the fan cavity through the air outlet device, and finally discharged to the outside of the outdoor unit, so as to ensure the heat dissipation effect of the electric control box and the electric control board device inside the outdoor unit. Since the electric control box introduces external fresh air through the air inlet device, it is connected to the external space, and the air inlet device is moved from one end close to the electric control box to the far end It is arranged in an inclined downward shape away from one end of the electric control box to prevent rainwater or condensation water from being brought into the electric control box by external air along the air inlet device, thereby ensuring the reliable use of electrical components inside the electric control box. At the same time, by introducing a fresh air module flowing to the electric control box, it is prevented that flammable and explosive emerging environmentally friendly refrigerants enter the electric control box and accumulate to an explosive concentration when leaking. Even if there is a refrigerant leakage, the air in the chamber of the electric control box can be continuously replaced under the action of the air inlet device and the air outlet device arranged on the electric control box, thereby reducing the risk of refrigerant detonating when the electric control board device emits electric sparks, improving the safety of the use of the electric control box, and thereby improving the safety performance of the outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is one of the three-dimensional structural schematic diagrams of an outdoor unit according to an embodiment of the present invention;

[0031] Figure 2 The second is a schematic diagram of a three-dimensional structure of an outdoor unit according to an embodiment of the present invention;

[0032] Figure 3 This is one of the three-dimensional structural schematic diagrams of an electrical appliance cover plate of an outdoor unit according to an embodiment of the present invention;

[0033] Figure 4 The second is a schematic diagram of the three-dimensional structure of an electrical cover plate of an outdoor unit according to an embodiment of the present invention;

[0034] Figure 5 The third schematic diagram of the three-dimensional structure of an outdoor unit according to an embodiment of the present invention;

[0035] Figure 6 It is a three-dimensional structural schematic diagram of an electric control box of an outdoor unit according to an embodiment of the present invention;

[0036] Figure 7 It is a schematic diagram of the exploded structure of an electric control box of an outdoor unit according to an embodiment of the present invention;

[0037] Figure 8 It is a front view structural schematic diagram of an air inlet device of an outdoor unit according to an embodiment of the present invention;

[0038] Fig. 9 A schematic diagram of the top view of the structure of an air inlet device of an outdoor unit according to an embodiment of the present invention;

[0039] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure along the BB section line.

[0040] Description of reference numerals:

[0041] 1. Outdoor unit; 11. Top cover; 12. Right side panel; 121. Mounting slot; 122. Wiring window; 123. Waterproof boss; 124. First mounting hole; 13. Chassis; 14. Back panel; 2. Electrical cover; 21. Second mounting hole; 22. Handle; 23. Wiring and heat dissipation; 24. Folded convex edge; 3. Electric control box; 30. Accommodating cavity; 31. Cover; 32. Box; 4. Middle partition; 5. Heat exchanger; 6. , fan assembly; 7, terminal box; 70, wiring chamber; 8, motor bracket; 100, fresh air module; 110, air inlet device; 1101, air inlet pipe; 1102, first connecting part; 1103, second connecting part; 1104, first air outlet; 1105, second air outlet; 1106, air supply channel; 1107, first water baffle; 1108, second water baffle; 1109, positioning column; 120, air outlet device. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The descriptions of "first", "second", etc. mentioned in the embodiments of the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0044] Example 1

[0045] like Figures 1 to 10 As shown, in this embodiment, an outdoor unit is provided, such as Figure 1 and Figure 2 As shown, the outdoor unit 1 includes a top cover plate 11, a right side plate 12 and an electrical cover plate 2. A mounting groove 121 is provided on the right side plate 12. The electrical cover plate 2 is installed in the mounting groove 121. The mounting groove 121 extends to the top of the right side plate 12. A limiting groove is formed between the top cover plate 11 and the mounting groove 121. The top of the electrical cover plate 2 is limited in the limiting groove on the inner side of the top cover plate 11. Specifically, as Figure 5 As shown, the outdoor unit 1 also includes an electric control box 3, a chassis 13 and a middle partition 4, wherein the middle partition 4 is mounted on the chassis 13, and the middle partition 4 divides the interior of the outdoor unit 1 into a fan chamber and a compressor chamber. A terminal box 7 is mounted on the electric control box 3, and a wiring chamber 70 is arranged in the terminal box 7, and the wiring chamber 70 is sealed from the compressor chamber.

[0046] In the outdoor unit 1 described in this embodiment, the top of the electrical cover 2 is limited in the limiting groove on the inner side of the top cover 11. On the one hand, it can prevent water from entering the interior of the outdoor unit 1 from the top of the electrical cover 2, thereby improving the waterproof performance of the outdoor unit 1 and further improving the safety performance of the outdoor unit 1; on the other hand, it also improves the installation strength of the electrical cover 2.

[0047] In the outdoor unit 1 described in the present embodiment, a sealing arrangement is provided between the wiring cavity 70 and the compressor cavity so that the wiring cavity 70 is not connected to the compressor cavity. If a refrigerant leaks, the refrigerant in the compressor cavity can be prevented from entering the wiring terminal box 7, thereby reducing the risk of explosion caused by accumulation of refrigerant leakage, thereby ensuring the reliable operation of the wiring terminal box 7, improving the safety performance of the wiring terminal box 7, and further improving the explosion-proof performance of the outdoor unit 1, thereby improving the safety performance of the outdoor unit 1.

[0048] Specifically, Figure 3 As shown, a folded convex edge 24 is provided on the top of the electrical appliance cover plate 2, and the folded convex edge 24 cooperates with the limiting groove.

[0049] On the one hand, this arrangement can prevent water from entering the interior of the outdoor unit 1 from the top of the electrical cover 2, thereby improving the waterproof performance of the outdoor unit 1 and thus improving the safety performance of the outdoor unit 1; on the other hand, it also improves the installation strength of the electrical cover 2.

[0050] Specifically, Figure 1 As shown, a wiring window 122 is provided in the installation groove 121 , and a waterproof boss 123 is provided around the wiring window 122 .

[0051] This arrangement can further prevent water from entering the interior of the outdoor unit 1 from around the wiring window 122 , further improving the waterproof performance of the outdoor unit 1 , thereby improving the safety performance of the outdoor unit 1 .

[0052] Specifically, Figure 1 As shown, a first mounting hole 124 is provided in the mounting groove 121. Figure 3 and Figure 4 As shown, a second mounting hole 21 is provided on the electrical cover plate 2 , and the second mounting hole 21 matches with the first mounting hole 124 . A third fastener passes through the second mounting hole 21 and the first mounting hole 124 to mount the electrical cover plate 2 in the mounting groove 121 .

[0053] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, a handle portion 22 is provided on the electrical appliance cover plate 2 , and the handle portion 22 is used for carrying the outdoor unit 1 .

[0054] This arrangement facilitates the transportation of the outdoor unit 1 .

[0055] The electrical appliance cover plate 2 is integrally formed by injection molding.

[0056] This arrangement improves the structural strength of the electrical appliance cover 2.

[0057] Specifically, Figure 2 and Figure 4As shown, a wiring heat dissipation portion 23 is provided on the electrical cover plate 2 , and the wiring heat dissipation portion 23 is provided to protrude toward the outside of the outdoor unit 1 , and a wiring channel is formed between the wiring heat dissipation portion 23 and the mounting groove 121 .

[0058] This arrangement facilitates wiring and heat dissipation. The wiring heat dissipation portion 23 is arranged to protrude toward the outside of the outdoor unit 1 to prevent water from entering the interior of the outdoor unit 1 through the wiring heat dissipation portion 23, further improving the waterproof performance of the outdoor unit 1, thereby improving the safety performance of the outdoor unit 1.

[0059] Specifically, the electric control box 3 is formed by aluminum casting in one piece.

[0060] This arrangement utilizes an aluminum casting integrated molding arrangement to ensure the structural strength of the electric control box 3 so that it meets explosion-proof requirements, while also improving the efficiency of the processing, production and assembly of the electric control box 3 .

[0061] Specifically, Figure 5 As shown, a fan assembly 6 is installed in the fan cavity, and a compressor assembly is installed in the compressor cavity. The fan assembly 6 and the compressor assembly are arranged on opposite sides of the middle partition 4.

[0062] Specifically, Figure 6 As shown, a fresh air module 100 is provided on the electric control box 3. Figure 6 and Figure 7 As shown, the fresh air module 100 includes an air inlet device 110 and an air outlet device 120, and a accommodating cavity 30 is arranged in the electric control box 3, and the accommodating cavity 30 is used to accommodate and install the electric control board device; the air inlet device 110 is connected with the external space and is used to introduce air into the accommodating cavity 30, and the air outlet device 120 is connected with the fan cavity, and the air outlet device 120 is used to discharge the air inside the accommodating cavity 30; wherein, the air inlet device 110 is arranged in an inclined downward shape from one end close to the electric control box 3 to the end away from the electric control box 3.

[0063] An outdoor unit 1 described in this embodiment is provided with a fresh air module 100 including an air inlet device 110 and an air outlet device 120 on the electric control box 3. When in use, since the air outlet device 120 is connected to the fan cavity, when the fan is in use, the fan cavity of the outdoor unit 1 generates a negative pressure, and the outdoor air enters the accommodating cavity 30 through the air inlet device 110 to cool the electric control board device, and then the mixed and cooled gas flows to the fan cavity through the air outlet device 120, and is finally discharged to the outside of the outdoor unit 1, so as to ensure the heat dissipation effect of the electric control box 3 and the electric control board device inside the outdoor unit 1. Since the electric control box 3 introduces external fresh air through the air inlet device 110, which is connected to the external space, the air inlet device 110 is moved from one end close to the electric control box 3 to the far end. It is arranged in an inclined downward shape away from one end of the electric control box 3 to prevent rainwater or condensed water from being brought into the electric control box 3 by external air along the air inlet device 110, thereby ensuring the reliable use of electrical components inside the electric control box 3. At the same time, by introducing a fresh air module 100 flowing to the electric control box 3, it is prevented that the flammable and explosive emerging environmentally friendly refrigerant enters the electric control box 3 and accumulates to an explosive concentration when leaking. Even if there is a refrigerant leakage, under the action of the air inlet device 110 and the air outlet device 120 arranged on the electric control box 3, the air in the accommodating cavity 30 of the electric control box 3 can be continuously replaced, thereby reducing the risk of detonating the refrigerant when the electric control board device emits an electric spark, thereby improving the safety performance of the use of the electric control box 3, and then improving the safety performance of the outdoor unit 1.

[0064] An outdoor unit 1 described in this embodiment continuously injects fresh air into the accommodating chamber 30 inside the electric control box 3 through the provided fresh air module 100 to perform air replacement, thereby improving the heat dissipation effect and, at the same time, preventing external rainwater or condensed water from entering the electric control box 3, ensuring that the electrical components inside the electric control box 3 can be used reliably, reducing the risk of explosion caused by leakage and accumulation of refrigerant, ensuring the reliable operation of the electric control box 3, improving the safety performance of the electric control box 3, and thereby improving the safety performance of the outdoor unit 1.

[0065] Specifically, Figure 7 As shown, the electric control box 3 includes a box body 32 and a cover body 31 . The accommodating cavity 30 is arranged on the box body 32 . The cover body 31 is connected to the box body 32 and can close the accommodating cavity 30 .

[0066] Specifically, Figure 8 and Fig.10 As shown, the air inlet device 110 includes an air inlet pipe portion 1101 , an internal air supply channel 1106 of the air inlet pipe portion 1101 , and a water baffle device is arranged inside the air supply channel 1106 .

[0067] When in use, since the air supply channel 1106 is arranged in an inclined shape as a whole along with the air inlet pipe portion 1101, and a water baffle device is formed on the inner wall of the air inlet pipe portion 1101, it is further prevented from flowing toward the electric control box 3 along the inner wall of the air inlet pipe portion 1101 when it rains heavily, thereby ensuring the reliability of the waterproofness of the electric control box 3 and further improving the safety performance of the outdoor unit 1.

[0068] Preferably, the water baffle device is arranged at an angle to the inner wall of the air inlet pipe 1101. As a specific example of the present application, the water baffle device is arranged perpendicular to the central axis of the air inlet pipe 1101.

[0069] Specifically, Fig.10 As shown, the water baffle device includes at least two water baffles, namely a first water baffle 1107 and a second water baffle 1108. The first water baffle 1107 and the second water baffle 1108 are respectively arranged inside the air supply channel 1106 near the two ends.

[0070] This arrangement reduces the possibility of rainwater accumulation inside the air supply channel 1106 and prevents rainwater or condensed water from flowing along the inner wall of the air inlet pipe 1101 into the electric control box 3, thereby further improving the waterproof performance of the electric control box 3, ensuring the safe operation of the internal components of the electric control box 3, and thus improving the safety performance of the outdoor unit 1.

[0071] Specifically, Fig.10 As shown, the air inlet pipe 1101 is arranged in a rectangular shape as a whole, and the first water baffle 1107 and the second water baffle 1108 are respectively arranged on the two side surfaces with larger areas of the air inlet pipe 1101. The above arrangement enables the first water baffle 1107 and the second water baffle 1108 to be staggered along the length direction of the central axis of the air inlet pipe 1101, distributed on the two side surfaces with larger areas on both sides of the length direction of the central axis, so that they can cover the entire air supply channel 1106, and on the basis of ensuring that the air inlet device 110 is waterproof and reliable, the air inlet effect of the air inlet device 110 can be ensured at the same time.

[0072] Specifically, Figure 8 , Fig. 9 and Fig.10As shown, a first connection part 1102 and a second connection part 1103 are respectively provided at opposite ends of the air inlet pipe part 1101, the first connection part 1102 is used to be detachably connected to the back plate 14 on the outdoor unit 1, and the second connection part 1103 is used to be connected to the electric control box 3. Specifically, flanges are provided at the ends of the air inlet pipe part 1101 to form the first connection part 1102 and the second connection part 1103 respectively, a first air outlet 1104 is formed at the center of the first connection part 1102, for the air supply channel 1106 to communicate with the external air of the outdoor unit 1, a second air outlet 1105 is formed at the center of the second connection part 1103, for the air supply channel 1106 to communicate with the receiving chamber 30 in the electric control box 3, the first connection part 1102 is connected to the back plate 14 by connecting screws, and the second connection part 1103 is connected to the electric control box 3 by connecting screws.

[0073] This arrangement ensures the convenience of installation and the reliability of connection of the air inlet device 110.

[0074] Specifically, Figure 8 and Fig.10 As shown, a positioning column 1109 is provided on the side of the first connection portion 1102 away from the second connection portion 1103, and the positioning column 1109 is positioned and plugged with the back plate 14. This arrangement further improves the convenience of the air inlet device 110 during installation.

[0075] Specifically, Figure 5 As shown, the outdoor unit 1 further includes a heat exchanger 5 , and the heat exchanger 5 is mounted on the chassis 13 .

[0076] Specifically, Figure 5 As shown, the outdoor unit 1 further includes a motor bracket 8, one end of the electric control box 3 is mounted on the motor bracket 8, a terminal box 7 is mounted on the other end of the electric control box 3, and the electric control box 3 is mounted on the middle partition 4 near the middle; a first positioning and limiting structure is provided on the terminal box 7, such as Figure 6 As shown, a second positioning and limiting structure is provided on the electric control box 3, and the second positioning and limiting structure is engaged with the first positioning and limiting structure.

[0077] The electric control box 3 is connected to the motor bracket 8, the middle partition plate 4 and the terminal box 7 respectively, which improves the balance and stability of the installation of the electric control box 3 and, on the other hand, improves the installation efficiency of the electric control box 3.

[0078] Compared with the prior art, in the outdoor unit described in the present invention, the top cover plate 11, the electrical cover plate 2, the electric control box 3, the terminal box 7, the fresh air module 101 and other structures are interconnected and work together. Under the joint effect of waterproofing and explosion-proofing, the safety of the outdoor unit 1 is greatly improved.

[0079] 1. In the outdoor unit 1 described in this embodiment, the top of the electrical cover 2 is limited in the limiting groove on the inner side of the top cover 11. On the one hand, it can prevent water from entering the interior of the outdoor unit 1 from the top of the electrical cover 2, thereby improving the waterproof performance of the outdoor unit 1 and further improving the safety performance of the outdoor unit 1; on the other hand, it also improves the installation strength of the electrical cover 2.

[0080] 2. In the outdoor unit 1 described in this embodiment, a sealing arrangement is provided between the wiring cavity 70 and the compressor cavity, so that the wiring cavity 70 and the compressor cavity are not connected. If the refrigerant leaks, the refrigerant in the compressor cavity can be prevented from entering the wiring terminal box 7, thereby reducing the risk of explosion caused by accumulation of refrigerant leakage, thereby ensuring the reliable operation of the wiring terminal box 7, improving the safety performance of the wiring terminal box 7, and further improving the explosion-proof performance of the outdoor unit 1, thereby improving the safety performance of the outdoor unit 1.

[0081] 3. An outdoor unit 1 described in this embodiment is provided with a fresh air module 100 including an air inlet device 110 and an air outlet device 120 on the electric control box 3. When in use, since the air outlet device 120 is connected to the fan cavity, when the fan is in use, a negative pressure is generated in the fan cavity of the outdoor unit 1, and the outdoor air enters the accommodating cavity 30 through the air inlet device 110 to cool the electric control board device, and then the mixed and cooled gas flows to the fan cavity through the air outlet device 120, and is finally discharged to the outside of the outdoor unit 1, so as to ensure the heat dissipation effect of the electric control box 3 and the electric control board device inside the outdoor unit 1. Since the electric control box 3 introduces external fresh air through the air inlet device 110, which is connected to the external space, the air inlet device 110 is introduced from one end close to the electric control box 3 to the outside. The end away from the electric control box 3 is arranged in an inclined downward shape to prevent rainwater or condensed water from being brought into the electric control box 3 by external air along the air inlet device 110, thereby ensuring the reliable use of electrical components inside the electric control box 3. At the same time, by introducing a fresh air module 100 flowing to the electric control box 3, it is prevented that the flammable and explosive emerging environmentally friendly refrigerant enters the electric control box 3 and accumulates to an explosive concentration when leaking. Even if there is a refrigerant leakage, under the action of the air inlet device 110 and the air outlet device 120 arranged on the electric control box 3, the air in the accommodating cavity 30 of the electric control box 3 can be continuously replaced, thereby reducing the risk of detonating the refrigerant when the electric control board device emits an electric spark, thereby improving the safety performance of the use of the electric control box 3, and then improving the safety performance of the outdoor unit 1.

[0082] Example 2

[0083] This embodiment provides an air conditioner, which includes an indoor unit and an outdoor unit 1 as described in any one of Embodiment 1.

[0084] The air conditioner includes not only the outdoor unit 1 but also other related components. Since the specific structures and specific assembly relationships of the related components are prior art, they will not be described in detail here.

[0085] The advantages of the air conditioner described above and the outdoor unit described above relative to the prior art are the same and will not be described in detail here.

[0086] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An outdoor unit, characterized in that: The outdoor unit comprises a top cover plate (11), a right side plate (12) and an electrical cover plate (2); a mounting groove (121) is arranged on the right side plate (12); the electrical cover plate (2) is mounted in the mounting groove (121); the mounting groove (121) extends to the top of the right side plate (12); a limiting groove is formed between the top cover plate (11) and the mounting groove (121); the top of the electrical cover plate (2) is limited in the limiting groove; the outdoor unit (1) also comprises an electric control box (3), a chassis (13) and a middle partition plate (4); the middle partition plate (4) is mounted on the chassis (13); the middle partition plate (4) divides the interior of the outdoor unit (1) into a fan chamber and a compressor chamber; a wiring terminal box (7) is mounted on the electric control box (3); a wiring chamber (70) is arranged in the wiring terminal box (7); the wiring chamber (70) is sealed from the compressor chamber.

2. An outdoor unit according to claim 1, characterized in that: A folded convex edge (24) is provided on the top of the electrical appliance cover plate (2), and the folded convex edge (24) cooperates with the limiting groove.

3. An outdoor unit according to claim 2, characterized in that: A wiring window (122) is provided in the installation groove (121), and waterproof bosses (123) are provided around the wiring window (122).

4. An outdoor unit according to claim 3, characterized in that: A first mounting hole (124) is provided in the mounting groove (121), and a second mounting hole (21) is provided on the electrical appliance cover plate (2); the second mounting hole (21) matches the first mounting hole (124); a third fastener passes through the second mounting hole (21) and the first mounting hole (124) to mount the electrical appliance cover plate (2) in the mounting groove (121).

5. An outdoor unit according to claim 4, characterized in that: A handle portion (22) is provided on the electrical appliance cover plate (2), and the handle portion (22) is used for carrying the outdoor unit (1).

6. An outdoor unit according to claim 5, characterized in that: The electrical appliance cover plate (2) is integrally formed by injection molding.

7. An outdoor unit according to claim 6, characterized in that: A wiring heat dissipation portion (23) is provided on the electrical appliance cover plate (2), the wiring heat dissipation portion (23) is provided to protrude toward the outside of the outdoor unit (1), and a wiring channel is formed between the wiring heat dissipation portion (23) and the mounting groove (121).

8. The outdoor unit according to claim 1, characterized in that: The electric control box (3) is an integrally formed aluminum casting.

9. An outdoor unit according to claim 8, characterized in that: A fresh air module (100) is arranged on the electric control box (3), the fresh air module (100) comprising an air inlet device (110) and an air outlet device (120), a receiving chamber (30) is arranged in the electric control box (3), the air inlet device (110) is communicated with the external space and is used to take air into the receiving chamber (30), the air outlet device (120) is communicated with the fan chamber, and the air outlet device (120) is used to discharge the air inside the receiving chamber (30); wherein the air inlet device (110) is arranged in an inclined downward shape from one end close to the electric control box (3) to one end away from the electric control box (3).

10. An air conditioner, characterized in that: The air conditioner comprises an outdoor unit and an indoor unit as claimed in any one of claims 1 to 9.

Images