Waterproof cover, electric control box and outdoor unit

Abstract

The utility model relates to the technical field of air conditioners, and discloses a waterproof cover, an electric control box and an outdoor unit. The waterproof cover comprises a cover body, a connecting piece is arranged in an inner cavity of the cover body, a first ventilation hole communicated with the inner cavity is formed in the connecting piece, and a second ventilation hole communicated with the inner cavity is formed in the cover body; and the protective cover is used for covering the heat dissipation hole of the electric control box, the protective cover is arranged on the connecting piece, the protective cover is provided with a third ventilation hole communicated with the first ventilation hole, and the third ventilation hole, the first ventilation hole and the second ventilation hole form a heat dissipation channel. According to the waterproof cover, when a fire breaks out in the electric control box, the arrangement of the protective cover enables flames to be blocked by the protective cover when the flames spread to the protective cover, so that the occurrence of the flames spreading to electric devices in an outdoor unit is reduced, and the problem that the electric devices in the outdoor unit are easy to burn out when the fire breaks out in the electric control box is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioners, and particularly relates to a waterproof cover, an electric control box and an outdoor unit. BACKGROUND

[0002] Various electric controls in an outdoor unit of an air conditioner are usually arranged in an electric control box. In the related art, a heat dissipation hole is formed in an electric control box to dissipate heat of electric controls in the electric control box. However, when a fire breaks out in the electric control box, the fire can spread from the heat dissipation hole to outside the electric control box, so that electric devices in the outdoor unit are easily burned.

[0003] Therefore, it is necessary to improve the prior art.

[0004] The above information is given as background information only to assist with an understanding of the present disclosure. No admission is made nor should it be inferred that any of the above information can constitute prior art with respect to the present disclosure. SUMMARY

[0005] Embodiments of the present application provide a waterproof cover, an electric control box and an outdoor unit to solve the problem that electric devices in the outdoor unit are easily burned when a fire breaks out in the electric control box.

[0006] In a first aspect, embodiments of the present application provide a waterproof cover, comprising:

[0007] a cover body, an inner cavity of the cover body is provided with a connecting piece, a first ventilation hole is formed in the connecting piece and communicates with the inner cavity, and a second ventilation hole is formed in the cover body and communicates with the inner cavity;

[0008] a protective cover for covering a heat dissipation hole of the electric control box, the protective cover is arranged on the connecting piece, the protective cover is provided with a third ventilation hole communicating with the first ventilation hole, and the third ventilation hole, the first ventilation hole and the second ventilation hole form a heat dissipation channel.

[0009] In a possible implementation, the connecting piece is provided with a receiving groove for accommodating the protective cover, and the first ventilation hole is formed in the connecting piece and communicates with the receiving groove.

[0010] In a possible implementation, the connecting piece comprises a first connecting part, a second connecting part and a third connecting part connected in sequence, the first connecting part, the second connecting part and the third connecting part enclose to form a receiving groove for accommodating the protective cover, and the first ventilation hole is formed in the second connecting part.

[0011] In a possible implementation, at least one of the first connecting part, the second connecting part or the third connecting part is provided with a blocking strip, and at least part of the blocking strip extends to an opening of the receiving groove.

[0012] In a possible implementation, the connecting piece is arranged on one side of the inner cavity in the first direction, the second vent hole is arranged on the side of the cover body away from the first direction, and the first vent hole is arranged opposite to the second vent hole.

[0013] In a possible implementation, the waterproof cover further comprises a water baffle, and the water baffle is fixedly connected to the side of the cover body away from the first direction.

[0014] In a possible implementation, a side of the cover body is provided with a flange, the flange is provided with a hook for connecting with an external device, and the flange is provided with a connecting hole for penetrating an external connecting piece.

[0015] In a possible implementation, a plurality of fourth vent holes are arranged on the cover body, the plurality of fourth vent holes are arranged on the side of the cover body in the second direction and / or the side of the cover body away from the second direction, and the fourth vent holes are in communication with the inner cavity.

[0016] In a second aspect, the embodiments of the present application further provide an electric control box, which comprises the waterproof cover according to any one of the above.

[0017] In a third aspect, the embodiments of the present application further provide an outdoor unit, which comprises the waterproof cover according to any one of the above.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The waterproof cover provided by the embodiments of the present application can meet the requirement of normal exhaust of the heat dissipation airflow when the waterproof cover is arranged on the electric control box, the heat dissipation airflow flowing out of the heat dissipation hole can flow into the inner cavity through the third vent hole and the first vent hole in sequence, and finally flow out of the waterproof cover through the second vent hole; when a fire breaks out in the electric control box, the arrangement of the protective cover can block the flame when the flame spreads to the protective cover, thereby reducing the occurrence of the flame spreading to the electrical devices in the outdoor unit, and solving the problem that the electrical devices in the outdoor unit are easily burned when a fire breaks out in the electric control box. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0021] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.

[0022] Figure 1 This is a schematic diagram of the structure of the waterproof cover provided in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the exploded structure of the waterproof cover provided in the embodiments of this application.

[0024] In the diagram: 1. Cover; 11. Inner cavity; 12. Second ventilation hole; 13. Fourth ventilation hole; 14. Flanged edge; 141. Hook; 142. Connecting hole; 2. Protective cover; 21. Third ventilation hole; 22. Air cavity; 3. Connector; 31. First connecting part; 32. Second connecting part; 33. Third connecting part; 34. First ventilation hole; 35. Baffle strip; 36. Receiving groove; 4. Water baffle. Detailed Implementation

[0025] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0026] In the description of this application, 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, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0028] This application provides a waterproof cover, an electrical control box, and an outdoor unit to solve the problem that electrical components inside the outdoor unit are easily burned when a fire occurs inside the electrical control box. The following description will be provided in conjunction with the accompanying drawings.

[0029] Please see Figure 1 and Figure 2 This application provides a waterproof cover, including a cover body 1 and a protective cover 2. The inner cavity 11 of the cover body 1 is provided with a connector 3, and the connector 3 has a first ventilation hole 34 communicating with the inner cavity 11. The cover body 1 has a second ventilation hole 12 communicating with the inner cavity 11. The protective cover 2 is used to cover the heat dissipation holes of the electrical control box. The protective cover 2 is disposed on the connector 3, and the protective cover 2 has a third ventilation hole 21 communicating with the first ventilation hole 34. The third ventilation hole 21, the first ventilation hole 34, and the second ventilation hole 12 form a heat dissipation channel.

[0030] When the waterproof cover is installed on the electrical control box, the cooling airflow from the heat dissipation hole can flow into the inner cavity 11 through the third ventilation hole 21 and the first ventilation hole 34 in sequence, and finally flow out of the waterproof cover through the second ventilation hole 12, which can meet the needs of normal exhaust of cooling airflow. When a fire occurs inside the electrical control box, the protective cover 2 can block the flame when it spreads to the protective cover 2, thereby reducing the occurrence of the flame spreading to the electrical components inside the outdoor unit and solving the problem that the electrical components inside the outdoor unit are easily burned when a fire occurs inside the electrical control box.

[0031] Please see Figure 1 and Figure 2 In this embodiment, the cover 1 is rectangular in shape. In some embodiments of this application, the cover 1 is cylindrical or other polygonal prism-shaped. The inner cavity 11 of the cover 1 has an opening, which faces one side in the thickness direction of the cover 1. A flange 14 is integrally formed on one side of the opening of the inner cavity 11. In this embodiment, the flange 14 is provided with a hook and a connecting hole 142. The number of hooks 141 is set to three. The hooks 141 are used to cooperate with the hanging holes on the electrical control box so that the waterproof cover can be hung on the electrical control box. The connecting hole 142 is used for the external connector 3 to pass through. In this embodiment, by cooperating the hooks 141 with the hanging holes and the bolt passing through the connecting hole 142 and being fixedly connected to the electrical control box, the cover 1 and the electrical control box can be fixedly connected.

[0032] Please see Figure 1 and Figure 2 The cover 1 has multiple second ventilation holes 12 and multiple fourth ventilation holes 13. Both the second ventilation holes 12 and the fourth ventilation holes 13 are elongated holes. The second ventilation holes 12 are all located on the side of the cover 1 facing away from the first direction, and are spaced equally along the second direction. In this embodiment, the multiple fourth ventilation holes 13 are located on both sides of the cover 1 in the second direction, and the fourth ventilation holes 13 on the same side of the cover 1 are spaced equally along the first direction. In some embodiments of this application, the multiple fourth ventilation holes are located on one side of the cover 1 in the second direction or on the side of the cover 1 facing away from the second direction. Both the second ventilation holes 12 and the fourth ventilation holes 13 communicate with the inner cavity 11, allowing the cooling airflow flowing into the inner cavity 11 to exit through the second ventilation holes 12 and the fourth ventilation holes 13, reducing the impact of the waterproof cover on the cooling airflow and thus improving the heat dissipation capacity of the electrical control box.

[0033] It should be noted that in this embodiment, the first direction is the length direction of the cover 1, and the second direction is the width direction of the cover 1.

[0034] Please see Figure 1 and Figure 2In this embodiment, the protective cover 2 is rectangular in shape and has an air cavity 22. The opening direction of the air cavity 22 is consistent with the opening direction of the inner cavity 11, and the third ventilation hole 21 communicates with the air cavity 22. When the waterproof cover is connected to the electrical control box, the opening of the air cavity 22 is directly opposite the heat dissipation hole of the electrical control box. This not only allows the cooling airflow from the heat dissipation hole to flow into the air cavity 22 and into the inner cavity 11 through the third ventilation hole 21 and the first ventilation hole 34, but also allows the protective cover 2 to isolate the flame inside the electrical control box. In this embodiment, the protective cover 2 is made of metal to give it good fire resistance, while the cover body 1 is made of plastic to reduce its weight.

[0035] Please see Figure 1 and Figure 2 The connector 3 is fixedly connected to the sidewall of the inner cavity 11 in the first direction. Specifically, the connector 3 includes a first connecting part 31, a second connecting part 32, and a third connecting part 33 connected in sequence. The end of the first connecting part 31 away from the second connecting part 32 and the end of the third connecting part 33 away from the second connecting part 32 are both fixedly connected to the sidewall of the inner cavity 11 in the first direction. The first connecting part 31, the second connecting part 32, the third connecting part 33, and the sidewall of the inner cavity 11 together form a receiving groove 36 for accommodating and fixing the protective cover 2. In this embodiment, the first ventilation hole 34 is opened on the second connecting part 32, so that the first ventilation hole 34 is directly opposite to at least part of the second ventilation hole 12, which is conducive to the heat dissipation airflow discharged from the first ventilation hole 34 being discharged from the second ventilation hole 12.

[0036] Please see Figure 1 and Figure 2 At least one of the first connecting part 31, the second connecting part 32, or the third connecting part 33 is provided with a baffle 35. In this embodiment, the baffle 35 is integrally formed on the side of the second connecting part 32 away from the cavity wall of the inner cavity 11. One end of the baffle 35 is connected to the side of the second connecting part 32 away from the cavity wall of the inner cavity 11, and the other end extends toward the opening of the receiving groove 36, so that when the protective cover 2 is received in the receiving groove 36, the baffle 35 can restrict the protective cover 2 from falling out of the receiving groove 36, thereby improving the stability of the connection between the protective cover 2 and the connecting member 3.

[0037] Please see Figure 1 and Figure 2 The waterproof cover also includes a water baffle 4, which is used to block the second ventilation hole 12 to reduce water splashing into the inner cavity 11 from the second ventilation hole 12. In this embodiment, the water baffle 4 is located on the side of the cover 1 away from the first direction. One side of the water baffle 4 is fixedly connected to the side of the cover 1 away from the opening of the inner cavity 11, and the other side of the water baffle 4 extends toward the side of the opening of the inner cavity 11 of the cover 1 to block the second ventilation hole 12.

[0038] This application also provides an electrical control box, which includes the waterproof cover described above. Since the electrical control box has the aforementioned waterproof cover, it possesses at least some or all of the beneficial effects of the waterproof cover, which will not be elaborated upon here.

[0039] This application also provides an outdoor unit, which includes the waterproof cover described above. Since the outdoor unit has the aforementioned waterproof cover, it possesses at least some or all of the beneficial effects of the waterproof cover, which will not be elaborated upon here.

[0040] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0041] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A waterproof cover, characterized in that, include: The cover has an inner cavity with a connector, the connector having a first ventilation hole communicating with the inner cavity, and the cover having a second ventilation hole communicating with the inner cavity. A protective cover is used to cover the heat dissipation holes of the electrical control box. The protective cover is disposed on the connector. The protective cover is provided with a third ventilation hole that communicates with the first ventilation hole. The third ventilation hole, the first ventilation hole, and the second ventilation hole form a heat dissipation channel.

2. The waterproof cover according to claim 1, characterized in that, The connector has a receiving groove for accommodating the protective cover, and the first ventilation hole is formed on the connector and communicates with the receiving groove.

3. The waterproof cover according to claim 2, characterized in that, The connector includes a first connecting part, a second connecting part, and a third connecting part connected in sequence. The first connecting part, the second connecting part, and the third connecting part enclose a receiving groove for accommodating the protective cover. The first ventilation hole is opened in the second connecting part.

4. The waterproof cover according to claim 3, characterized in that, At least one of the first connecting portion, the second connecting portion, or the third connecting portion is provided with a baffle, and at least a portion of the baffle extends toward the opening of the receiving groove.

5. The waterproof cover according to claim 2, characterized in that, The connector is located on one side of the inner cavity in the first direction, and the second ventilation hole is located on the side of the cover opposite to the first direction. The first ventilation hole and the second ventilation hole are arranged opposite to each other.

6. The waterproof cover according to claim 1, characterized in that, The waterproof cover also includes a water baffle, which is fixedly connected to the side of the cover body away from the first direction.

7. The waterproof cover according to claim 1, characterized in that, One side of the cover is provided with a flange, and the flange is provided with a hook for connecting to external equipment. The flange is also provided with a connection hole for external connectors to pass through.

8. The waterproof cover according to claim 1, characterized in that, The cover has multiple fourth ventilation holes, which are located on one side of the cover in the second direction and / or on the side of the cover away from the second direction. The fourth ventilation holes are connected to the inner cavity.

9. An electrical control box, characterized in that, The electrical control box includes a waterproof cover as described in any one of claims 1-8.

10. An outdoor unit, characterized in that, The outdoor unit includes a waterproof cover as described in any one of claims 1-8.

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