Air-tight waterproof structure and air conditioner

Abstract

The utility model discloses a kind of airtight waterproof structure and air conditioner, belong to air conditioning technical field.Airtight waterproof structure is assembled on electric control box body, wire passes through airtight waterproof structure and enters electric control box body;Airtight waterproof structure includes sealing gasket, sealing press plate and fixing piece;Sealing press plate is installed on electric control box body by fixing piece, sealing gasket is sleeved on the circumferential side of wire, the sealing press plate is in abutment with the sealing gasket, so that the sealing gasket is interference fit with wire.The utility model prevents gas leakage to electric control box interior, avoids the safety risk of ignition, explosion and the like caused by flammable refrigerant leakage.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, specifically relating to an airtight and waterproof structure and an air conditioner. Background Technology

[0002] With the increasing severity of global warming and people's pursuit of a healthy living environment, air conditioners are gaining popularity due to their ability to exchange heat between indoor and outdoor air. However, the waterproof performance of air conditioners currently on the market is as follows: the national standard requires an IPX4 waterproof rating, which only requires that water does not enter live parts, or that it can be quickly discharged if it does. There are no special regulations for air conditioning equipment that uses flammable refrigerants. If there is a leak of flammable gas in the refrigeration system, it will permeate the area around the electrical control box. Without reliable sealing measures, flammable gas will enter the cavity of the electrical control box, and if the live parts inside the box happen to generate an electric arc, it could cause an explosion or other risks. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an airtight and waterproof structure and air conditioner, which prevents gas from leaking into the electrical control box and avoids the safety risks of fire and explosion caused by the leakage of flammable refrigerant.

[0004] This utility model provides the following technical solution:

[0005] In a first aspect, an airtight and waterproof structure is provided, which is assembled on an electrical control box, and a wire passes through the airtight and waterproof structure into the electrical control box; the airtight and waterproof structure includes a sealing gasket, a sealing pressure plate, and a fixing member; the sealing pressure plate is installed on the electrical control box through the fixing member, the sealing gasket is sleeved on the periphery of the wire, and the sealing pressure plate abuts against the sealing gasket, so that the sealing gasket and the wire are interference-fitted.

[0006] As an optional technical solution of this utility model, the sealing gasket includes an outer cone and an inner cone, the height of the inner cone is higher than the height of the outer cone, and the wire passes through the inner cone.

[0007] As an optional technical solution of this utility model, the longitudinal sections of both the outer cone and the inner cone are conical.

[0008] As an optional technical solution of this utility model, the sealing pressure plate includes a first inclined part, a first horizontal part, a second inclined part and a second horizontal part connected in sequence. The first inclined part abuts against the outer peripheral side of the inner cone, the first horizontal part is parallel to the top of the outer cone, the second inclined part abuts against the outer peripheral side of the outer cone, and the second horizontal part is installed on the electrical control box by a fixing member.

[0009] As an optional technical solution of this utility model, there is a gap between the first horizontal part and the outer cone.

[0010] As an optional technical solution of this utility model, the sealing gasket is a rubber gasket.

[0011] As an optional technical solution of this utility model, the fixing component includes bolts and nuts, and the sealing pressure plate is fixed to the electrical control box by the matching bolts and nuts.

[0012] In a second aspect, an air conditioner is provided, comprising an electrical control box, wires, and the airtight and waterproof structure described in the first aspect.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The airtight and waterproof structure provided by this utility model uses a sealing plate to press the sealing gasket tightly. The sealing gasket undergoes elastic deformation after being squeezed by the sealing plate, thereby achieving an interference fit between the sealing gasket and the wire, preventing gas leakage into the electrical control box, and avoiding safety risks such as fire and explosion caused by flammable refrigerant leakage. Attached Figure Description

[0015] Figure 1 This is an assembly diagram of the airtight and waterproof structure and the electrical control box in an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the airtight and waterproof structure in an embodiment of this utility model.

[0017] The markings in the diagram are as follows: 1. Sealing gasket; 2. Sealing pressure plate; 2.1. First inclined part; 2.2. First horizontal part; 2.3. Second inclined part; 2.4. Second horizontal part; 3. Wire; 4. Electrical control box; 5. Inner cone; 6. Outer cone; 7. Bolt; 8. Nut. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0019] Example 1

[0020] This embodiment provides an airtight and waterproof structure, such as Figure 1 As shown, the airtight and waterproof structure is assembled on the electrical control box 4, and the wire 3 passes through the airtight and waterproof structure into the electrical control box 4.

[0021] like Figure 2As shown, the airtight and waterproof structure includes a sealing gasket 1, a sealing pressure plate 2, and a fixing component; the sealing pressure plate 2 is installed on the electrical control box 4 through the fixing component, the sealing gasket 1 is sleeved on the periphery of the wire 3, and the sealing pressure plate 2 abuts against the sealing gasket 1, so that the sealing gasket 1 and the wire 3 are interference-fitted, thereby achieving airtightness.

[0022] Further, the sealing gasket 1 includes an outer cone 6 and an inner cone 5, the inner cone 5 being higher than the outer cone 6, and the wire 3 passing through the inner cone 5. Both the outer cone 6 and the inner cone 5 have conical longitudinal sections. The sealing pressure plate 2 includes a first inclined portion 2.1, a first horizontal portion 2.2, a second inclined portion 2.3, and a second horizontal portion 2.4 connected in sequence. The first inclined portion 2.1 abuts against the outer periphery of the inner cone 5, the first horizontal portion 2.2 is parallel to the top of the outer cone 6, the second inclined portion 2.3 abuts against the outer periphery of the outer cone 6, and the second horizontal portion 2.4 is mounted on the electrical control box 4 by a fastener. The sealing gasket 1 undergoes elastic deformation after being compressed by the sealing pressure plate 2. The mating contact surface between the sealing gasket 1 and the sealing pressure plate 2 is conical, and the mating becomes tighter as the sealing pressure plate 2 moves downwards, thus tightly wrapping the wire 3 with the sealing gasket 1, achieving an interference fit between the sealing gasket 1 and the wire 3, thereby achieving an IP67 level of airtightness and waterproofing.

[0023] Furthermore, there is a gap between the first horizontal part 2.2 and the outer cone 6, which is used to press the sealing gasket 1 downward by the sealing pressure plate 2.

[0024] Furthermore, the sealing gasket 1 is made of rubber, which can deform under compression to apply pressure to the wire 3. Figure 2 The middle arrow indicates the direction of the force.

[0025] Furthermore, the fasteners include bolts 7 and nuts 8, and the sealing plate 2 is fixed to the electrical control box 4 by the matching bolts 7 and nuts 8.

[0026] Example 2

[0027] This embodiment provides an air conditioner, including an electrical control box 4, wires 3, and the airtight and waterproof structure described in Embodiment 1.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An airtight and waterproof structure, characterized in that: The airtight and waterproof structure is assembled on the electrical control box (4), and the wire (3) passes through the airtight and waterproof structure and enters the electrical control box (4). The airtight and waterproof structure includes a sealing gasket (1), a sealing pressure plate (2), and a fixing component; the sealing pressure plate (2) is installed on the electrical control box (4) through the fixing component, the sealing gasket (1) is sleeved on the periphery of the wire (3), and the sealing pressure plate (2) abuts against the sealing gasket (1) so that the sealing gasket (1) and the wire (3) are interference fit.

2. The airtight and waterproof structure according to claim 1, characterized in that: The sealing gasket (1) includes an outer cone (6) and an inner cone (5), the height of the inner cone (5) being higher than the height of the outer cone (6), and the wire (3) passing through the inner cone (5).

3. The airtight and waterproof structure according to claim 2, characterized in that: The longitudinal sections of both the outer cone (6) and the inner cone (5) are conical.

4. The airtight and waterproof structure according to claim 2, characterized in that: The sealing plate (2) includes a first inclined part (2.1), a first horizontal part (2.2), a second inclined part (2.3), and a second horizontal part (2.4) connected in sequence. The first inclined part (2.1) abuts against the outer periphery of the inner cone (5), the first horizontal part (2.2) is parallel to the top of the outer cone (6), the second inclined part (2.3) abuts against the outer periphery of the outer cone (6), and the second horizontal part (2.4) is installed on the electrical control box (4) by a fastener.

5. The airtight and waterproof structure according to claim 4, characterized in that: There is a gap between the first horizontal part (2.2) and the outer cone (6).

6. The airtight and waterproof structure according to claim 1, characterized in that: The sealing gasket (1) is a rubber gasket.

7. The airtight and waterproof structure according to claim 1, characterized in that: The fasteners include bolts (7) and nuts (8), and the sealing plate (2) is fixed to the electrical control box (4) by the matching bolts (7) and nuts (8).

8. An air conditioner, characterized in that: It includes an electrical control box (4), wires (3), and an airtight and waterproof structure as described in any one of claims 1-7.

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