CN210220035U

CN210220035U - Air conditioner

Info

Publication number: CN210220035U
Application number: CN201920742284.XU
Authority: CN
Inventors: Yihui Xu; 徐以会; Yanlin He; 何延林; Peng Wang; 王朋; Fajun Wang; 王法军
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Shandong Air Conditioning Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-03-31
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to an air conditioner, which comprises an outdoor unit, wherein the outdoor unit comprises an outdoor unit main control panel, a compressor and an alternating current contactor connected with the outdoor unit main control panel and the compressor, and is characterized by also comprising a sealing device used for sealing the alternating current contactor; the sealing device comprises an upper shell, a lower shell, a sealing ring and a sealing gasket; the sealing ring is sleeved at the upper end of the lower shell, and the sealing ring is extruded when the upper shell is buckled on the lower shell; the lateral wall of the lower shell is provided with a mounting groove, the sealing gasket is clamped in the mounting groove and is in contact fit with the sealing ring, and the sealing gasket is provided with a through hole for leading out the connecting wire of the alternating current contactor. The utility model discloses the air conditioner is used for sealed ac contactor, with ac contactor and the reliable isolation of refrigerant R32, improves air conditioner operation security.

Description

Air conditioner

Technical Field

The utility model belongs to the technical field of the outer machine of air-conditioner, concretely relates to air conditioner that AC contactor carries out sealing in to air conditioner outdoor unit.

Background

Currently, in air conditioners which are marketed in the european union, R32 refrigerant, which has inflammable and explosive characteristics, is used, and when this refrigerant is used, it is required to strictly seal all ignition sources. For example, an ac contactor is used to start a compressor, but the ac contactor itself does not have an explosion-proof characteristic and is a fire source in terms of safety. Therefore, in an air conditioner using an R32 refrigerant and an ignition source such as an ac contactor, it is necessary to strictly seal the ac contactor to prevent safety accidents such as explosion and combustion caused by leakage of the R32 refrigerant when the air conditioner is operated and contact with the ac contactor.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air conditioner for the ac contactor that sealed off-premises station main control board and compressor all link to each other reliably keeps apart ac contactor and refrigerant R32, improves air conditioner operation security.

In order to solve the technical problem, the utility model provides a following technical scheme solves:

an air conditioner comprises an outdoor unit, wherein the outdoor unit comprises an outdoor unit main control board, a compressor and an alternating current contactor connected with the outdoor unit main control board and the compressor, and is characterized by further comprising a sealing device used for sealing the alternating current contactor; the sealing device comprises an upper shell, a lower shell, a sealing ring and a sealing gasket; the sealing ring is sleeved at the upper end of the lower shell, and the sealing ring is extruded when the upper shell is buckled on the lower shell; the lateral wall of the lower shell is provided with a mounting groove, the sealing gasket is clamped in the mounting groove and is in contact fit with the sealing ring, and the sealing gasket is provided with a through hole for leading out the connecting wire of the alternating current contactor.

In order to place the sealing ring, a groove surrounding the opening of the lower shell is formed in the upper end of the lower shell, and the sealing ring is embedded into the groove.

Further, the groove is an arc groove, a square groove or a conical groove.

In order to realize the installation of the sealing gasket, at least one convex rib is arranged on the inner wall of the installation groove, a first notch and at least one second notch matched with each convex rib are arranged on the sealing gasket, and one part of the sealing ring is embedded into the second notch.

Further, the shape of the second notch matches the shape of the groove.

In order to enhance the buffer capacity of the upper shell and the lower shell and avoid the deformation of the shells, the sealing ring is a hollow sealing ring.

Further, the quantity of mounting groove with the quantity of sealed pad is two, and two mounting grooves are seted up on the relative lateral wall of casing down, just sealed pad corresponds the card and is gone into in the mounting groove.

Further, a hot melt adhesive is coated at the gap between the connection line and the perforation.

In order to realize the fixation between the upper shell and the lower shell, a plurality of upper mounting bosses are arranged on the upper shell, a plurality of lower mounting bosses corresponding to the upper mounting bosses are arranged on the lower shell, screw holes are formed in the upper mounting bosses, thread grooves are formed in the lower mounting bosses, and screws penetrate through the screw holes and are screwed into the thread grooves.

Compared with the prior art, the utility model discloses an advantage and beneficial effect are: the sealing washer is used for sealed casing and the gap between the casing down, and the mounting groove on the casing lateral wall is gone into to sealed the card of filling up, and with the cooperation of sealing washer contact, realizes casing sealed in mounting groove department down, improves whole sealing device's leakproofness, reliably keeps apart ac contactor and refrigerant R32, improves air conditioner operation security.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a sealing device in an embodiment of an air conditioner according to the present invention;

fig. 2 is an exploded view of a sealing device in an embodiment of the air conditioner of the present invention, showing an ac contactor inside the sealing device;

FIG. 3 is a partial structural view of a sealing ring and a sealing pad of the sealing device of the embodiment of the present invention disposed on a lower housing;

fig. 4 is a partial structural view of a lower housing of a sealing device in an embodiment of an air conditioner according to the present invention, in which a sealing ring is shown;

FIG. 5 is an enlarged view of portion A of FIG. 2;

fig. 6 is a structural diagram of a sealing gasket in a sealing device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The conventional air conditioner includes an outdoor unit including an outdoor unit main control panel, a compressor, and an ac contactor connected to both the outdoor unit main control panel and the compressor, in order to seal an ignition source such as the ac contactor 50 and prevent the ac contactor from contacting a refrigerant R32, as shown in fig. 1 and 2, the present embodiment relates to a sealing device for sealing the ac contactor, including an upper casing 10, a lower casing 20, and a sealing structure, the sealing structure including a sealing ring 30 and a sealing gasket (only one sealing gasket 40 is marked in fig. 2); the sealing ring 30 is sleeved at the upper end of the lower shell 10, and the sealing ring 30 is extruded when the upper shell 10 is buckled on the lower shell 20; as shown in fig. 3 and 5, a mounting groove is formed on the side wall of the lower housing 20, only the mounting groove 22 into which the gasket 40 is inserted is shown in fig. 5, the gasket 40 is inserted into the mounting groove 22 and is in contact fit with the sealing ring 30, and as shown in fig. 6, a through hole 43 for leading out a connection line of the ac contactor 50 is formed in the gasket 40.

Specifically, in order to place the seal ring 30, as shown in fig. 3 to 5, in the present embodiment, a groove 21 is provided around the opening at the upper end of the lower housing 20, and the shape of the groove 21 in the present embodiment is a circular arc, but may be other shapes such as a square shape or a cone shape, which is not limited herein. When the upper case 10 is fastened to the lower case 20, the upper case 10 presses the seal ring 30 around the opening thereof, and the seal ring 30 is compressed and deformed, thereby sealing a gap between the upper case 10 and the lower case 20. As shown in fig. 2, in the present embodiment, mounting grooves are formed in both of the opposite sidewalls of the lower case 20, but it is needless to say that mounting grooves may be formed in one sidewall or an adjacent sidewall, and for the sake of brevity, only the structure and mounting relationship of the mounting grooves 22 and the gasket 40 will be described below.

As shown in fig. 2 and 5, the mounting groove 22 is a U-shaped groove, and at least one rib 221 is protruded on an inner wall of the mounting groove 22, and as shown in fig. 6, the gasket 40 is provided with a first notch 41 and at least one second notch 42, the number of the second notches 42 is the same as the number of the ribs 221, and when the gasket 40 is snapped into the mounting groove 22, the corresponding rib 221 is snapped into the second notch 42, and as shown in fig. 3, a portion of the sealing ring 30 is snapped into the first notch 41. In this embodiment, the shape of the first notch 41 matches the shape of the groove 21, i.e. the first notch 41 and the groove 21 are equal in depth and width, so that when the two gaskets are correspondingly snapped into the mounting groove, the groove 21, the first notch 41 of the gasket 40 and the first notch of the other gasket (not labeled) form a complete circumferential groove around the opening of the lower housing 20 for carrying the sealing ring 30.

As shown in fig. 1, the upper case 10 and the lower case 20 are fixed by screws, specifically, as shown in fig. 2, four corners of the upper case 10 are provided with mounting bosses 11, and four corners of the upper end of the lower case 20 are also provided with mounting bosses 12, the mounting bosses 11 are provided with screw holes, the mounting bosses 12 are provided with thread grooves, screws pass through the screw holes and are screwed into the thread grooves, so as to realize the fixed connection between the upper case 10 and the lower case 20, at this time, the seal ring 30 is extruded and deformed, and the seal between the upper case 10 and the lower case 20 is realized. In order to enhance the buffer between the upper casing 10 and the lower casing 20 and avoid the deformation of the casings, as shown in fig. 4, the seal ring 30 of the present embodiment is a hollow seal ring, and the compression amount of the seal ring 30 is increased.

As shown in fig. 6, two through holes 43 are formed in the gasket 40 for threading the ac contactor 50, and when the ac contactor 50 operates, it needs to be wired to an external electrical device (e.g., an outdoor unit main control board or a compressor); and in order to improve the sealing performance of the whole sealing device, hot melt adhesive sealing is performed at the position of the perforation 43 after the connecting line passes through the perforation 43. Of course, the sealing device may be used not only to seal the ac contactor 50, but also to seal other types of ignition sources.

The embodiment provides an air conditioner, the sealing ring 30 is used for sealing the gap between the upper shell 10 and the lower shell 20, the sealing gasket 40 is clamped into the mounting groove 22 on the side wall of the lower shell 20, the sealing between the lower shell 20 and the sealing gasket 40 is realized, a part of the sealing ring 30 is clamped into the groove 41 of the sealing gasket 40, when the upper shell 10 is screwed and fixed to the lower shell 20, the effective sealing between the upper shell 10, the sealing ring 30, the sealing gasket 40 and the lower shell 20 is realized, the sealing reliability of the whole sealing device is realized, and therefore the sealing device is reliably isolated from an R32 refrigerant.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An air conditioner comprises an outdoor unit, wherein the outdoor unit comprises an outdoor unit main control board, a compressor and an alternating current contactor connected with the outdoor unit main control board and the compressor, and is characterized by further comprising a sealing device used for sealing the alternating current contactor; the sealing device comprises an upper shell, a lower shell, a sealing ring and a sealing gasket; the sealing ring is sleeved at the upper end of the lower shell, and the sealing ring is extruded when the upper shell is buckled on the lower shell; the lateral wall of the lower shell is provided with a mounting groove, the sealing gasket is clamped in the mounting groove and is in contact fit with the sealing ring, and the sealing gasket is provided with a through hole for leading out the connecting wire of the alternating current contactor.

2. The air conditioner according to claim 1, wherein a groove is formed at an upper end of the lower case to surround the opening of the lower case, and the packing is fitted into the groove.

3. The air conditioner according to claim 2, wherein the groove is an arc-shaped groove, a square-shaped groove or a tapered groove.

4. The air conditioner as claimed in claim 2, wherein the mounting groove is provided at an inner wall thereof with at least one rib, the sealing gasket is provided with a first notch and at least one second notch engaged with each rib, and a portion of the sealing gasket is fitted into the first notch.

5. The air conditioner of claim 4, wherein the shape of the first notch matches the shape of the groove.

6. An air conditioner according to any one of claims 1 to 5, wherein said seal ring is a hollow seal ring.

7. The air conditioner according to any one of claims 1 to 5, wherein the number of the mounting grooves and the number of the gasket are two, two mounting grooves are opened on opposite sidewalls of the lower case, and the gasket is correspondingly snapped into the mounting grooves.

8. The air conditioner according to any one of claims 1 to 5, wherein a hot melt adhesive is coated at a gap between the connection line and the perforation.

9. The air conditioner according to any one of claims 1 to 5, wherein a plurality of upper mounting bosses are provided on the upper casing, and a plurality of lower mounting bosses corresponding to the respective upper mounting bosses are provided on the lower casing, a screw hole is provided on each upper mounting boss, a screw groove is provided on each lower mounting boss, and a screw is screwed into the screw groove through the screw hole.