CN216218214U

CN216218214U - Low pressure controller waterproof construction

Info

Publication number: CN216218214U
Application number: CN202122497480.5U
Authority: CN
Inventors: 王嘉羣
Original assignee: Guang Zhou Ting Shen Electric Co ltd
Current assignee: Guang Zhou Ting Shen Electric Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-04-05
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a waterproof structure of a low-voltage controller, which comprises a first shell, a second shell and a PCBA (printed circuit board assembly), wherein the four corners of the bottom end in the first shell are fixedly connected with second nut posts, the top ends of the four second nut posts are respectively movably connected with the four corners of the lower surface of the PCBA carrier, two first seal grooves are formed in the outer side of the upper surface of the first shell, second seal grooves are formed in the front and rear ends of the upper surface of the first shell, two first seal grooves are formed in the outer side of the lower surface of the second shell, second seal grooves are formed in the front and rear ends of the lower surface of the second shell, the four corners of the top end in the second shell are fixedly connected with the first nut posts, mounting holes are formed in the four corners of the upper surface of the second shell, and the second shell is fixedly mounted with the first shell through fastening screws. The utility model solves the problems that the low-pressure controller is easy to feed water, the low-pressure controller is inconvenient to disassemble and the control keys are complex to install.

Description

Low pressure controller waterproof construction

Technical Field

The utility model relates to the technical field of low-voltage controller waterproofing, in particular to a low-voltage controller waterproofing structure.

Background

When the low-voltage controller is used as an air compressor, the low-voltage controller makes necessary electronic elements, and when the fins of the evaporator are seriously accumulated with dust, the circulating air quantity of the indoor unit is reduced, the refrigerant is insufficient, and the evaporator is frosted or frozen, the suction pressure is too low, so that the air conditioner can not normally work and the compressor is extremely harmful. Therefore, in a large refrigerating device, a low-pressure controller is arranged on a suction pipe of a compressor, and when the suction pressure is too low, the low-pressure controller automatically cuts off a main circuit of an air conditioner through a control circuit board.

But current low pressure controller is in outdoor environment for a long time, receive the erosion of rainwater easily, consequently it is very easy because of the phenomenon of intaking appears, thereby make the circuit board in the low pressure controller receive the damage, thereby make the low pressure controller destroy, and, current low pressure controller structure is comparatively complicated, especially adopt to pour into a large amount of waterproof glue into in waterproof aspect usually, carry out water repellent treatment, low pressure controller is difficult to open after adopting this kind of water repellent treatment mode, inconvenient dismantlement, and simultaneously, current low pressure controller is comparatively complicated in the installation of control button, consequently, need a low pressure controller waterproof construction to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a waterproof structure of a low-voltage controller, which has the advantages of good waterproof performance, convenience in disassembly and convenience in control key installation, and solves the problems that the low-voltage controller is easy to feed water, the low-voltage controller is inconvenient to disassemble and the control keys are complex to install.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a low pressure controller waterproof construction, includes first shell, second shell and PCBA support plate, the inside bottom four corners department fixedly connected with second nut post of first shell, four second nut capital end respectively with PCBA support plate lower surface four corners department swing joint, the first shell upper surface outside is equipped with two first seal grooves, both ends all are equipped with the second seal groove around the first shell upper surface, the second shell lower surface outside is equipped with two first seal grooves, both ends all are equipped with the second seal groove around the second shell lower surface, the equal first nut post of fixedly connected with in the inside top four corners department of second shell, second shell upper surface four corners department all is equipped with the mounting hole, the second shell passes through fastening screw and first shell fixed mounting.

Preferably, a second rubber waterproof ring is arranged in the middle of the lower surface of the first shell in an opening and embedded mode, a silica gel key is arranged on the upper surface of the second rubber waterproof ring in an embedded mode, and the top end of the silica gel key is in contact with the lower surface of the PCBA carrier plate but is not fixedly connected with the lower surface of the PCBA carrier plate.

Preferably, the four top ends of the first nut columns are respectively communicated with the four mounting holes in the upper surface of the second shell, fourth rubber waterproof rings are embedded into the four mounting holes in the upper surface of the second shell, and sealing plugs are movably mounted in the four mounting holes in the upper surface of the second shell.

Preferably, the two first sealing grooves on the first shell and the two first sealing grooves on the second shell are matched in position and are embedded with two first rubber waterproof rings.

Preferably, two second seal grooves on the first shell and two second seal grooves on the second shell are matched in position and are all embedded with third rubber waterproof rings, connecting wires are movably mounted in the two third rubber waterproof rings, and one end of each connecting wire is electrically connected with the PCBA carrier plate.

Preferably, the top ends of the four second nut columns are matched with the bottom ends of the four first nut columns in position and are not contacted.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the first shell and the second shell are arranged and fixedly connected through the fastening screws, the first rubber waterproof ring is arranged at the joint of the first shell and the second shell, and the original waterproof glue is replaced by the first rubber waterproof ring, so that the low-pressure controller subjected to waterproof treatment still has the function of convenient disassembly, and the effect that the low-pressure controller can still be conveniently disassembled after waterproof treatment is achieved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the first housing of the present invention;

FIG. 3 is a schematic side sectional view of the present invention;

fig. 4 is a schematic top view of a second housing according to the present invention.

In the figure: 1. a first housing; 2. a first rubber waterproof ring; 3. a second housing; 4. a first nut post; 5. sealing the plug; 6. a connecting wire; 7. fastening screws; 8. a second rubber waterproof ring; 9. a silica gel key; 10. a PCBA carrier plate; 11. a second nut post; 12. a first seal groove; 13. a second seal groove; 14. a third rubber waterproof ring; 15. and a fourth rubber waterproof ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, an embodiment of the present invention includes: the utility model provides a low pressure controller waterproof construction, includes first shell 1, second shell 3 and

PCBA support plate

10, 1 inside bottom four corners fixedly connected with second nut post 11 of first shell, four second nut posts 11 tops and four first nut posts 4 bottom position phase-matchs and contactless. The top ends of the four second nut columns 11 are respectively movably connected with four corners of the lower surface of the PCBA carrier plate 10, the middle of the lower surface of the first shell 1 is provided with a hole and is embedded with a second rubber waterproof ring 8, the upper surface of the second rubber waterproof ring 8 is embedded with a silica gel key 9, and the top end of the silica gel key 9 is in contact with but not fixedly connected with the lower surface of the PCBA carrier plate 10. Through setting up the waterproof circle 8 of second rubber to install the waterproof circle 8 embedding of second rubber in the trompil of first shell 1 lower surface, simultaneously, install the waterproof circle 8 of second rubber with the embedding of silica gel button 9, and make the contact of silica gel button 9 one end and PCBA support plate 10, thereby make the installation of control installation become more convenient, reached conveniently carry out keying operation and the effect that button installation department possesses waterproof function. The outside of the upper surface of the first shell 1 is provided with two first sealing grooves 12, the front and back ends of the upper surface of the first shell 1 are provided with second sealing grooves 13, the outside of the lower surface of the second shell 3 is provided with two first sealing grooves 12, and the two first sealing grooves 12 on the first shell 1 and the two first sealing grooves 12 on the second shell 3 are matched in position and embedded with two first rubber waterproof rings 2. Both ends all are equipped with second seal groove 13 around the second shell 3 lower surface, and the waterproof circle of third rubber 14 is installed in two second seal grooves 13 on the first shell 1 and two second seal grooves 13 position phase-matches on the second shell 3 and all the embedding, and equal movable mounting has connecting wire 6 in two waterproof circles of third rubber 14, and connecting wire 6 one end is connected with PCBA support plate 10 electricity.

The equal fixedly connected with of the inside top four corners department of second shell 3

first nut post

4, 3 upper surface four corners departments of second shell all are equipped with the mounting hole, four first nut post 4 tops respectively with four mounting holes intercommunication of 3 upper surfaces of second shell, all the embedding is installed in four mounting holes of 3 upper surfaces of second shell and is had fourth rubber waterproof ring 15, equal movable mounting has sealed end cap 5 in four mounting holes of 3 upper surfaces of second shell. The second housing 3 is fixedly mounted to the first housing 1 by fastening screws 7. Through setting up first shell 1 and second shell 3 to through fastening screw 7 with

first shell

1 and 3 fixed connection of second shell, inform and set up first rubber waterproof ring 2 in

first shell

1 and 3 junctions of second shell, replace original waterproof glue through first rubber waterproof ring 2, thereby make the low pressure controller after the water repellent still possess the function of convenient dismantlement, reached the effect that can conveniently dismantle still after the water repellent.

The working principle is as follows: when the low-voltage controller is used, the first shell 1 and the second shell 3 are fixedly connected through the fastening screws 7, the sealing plugs 5 are plugged into the mounting holes, the first rubber waterproof ring 2 arranged in the first sealing groove 12 enables the interiors of the first shell 1 and the second shell 3 to be kept in a sealing state, a waterproof effect is achieved, the silica gel key 9 is arranged in the hole formed in the first shell 1 through the second rubber waterproof ring 8, the waterproof performance of the control switch is improved, and the third rubber waterproof ring 14 is arranged in the second sealing groove 13, so that the waterproof performance of the connecting wire 6 is not reduced after the connecting wire is connected with the low-voltage controller.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A low pressure controller waterproof construction, includes first shell (1), second shell (3) and PCBA support plate (10), its characterized in that: the four corners of the bottom end inside the first shell (1) are fixedly connected with second nut posts (11), the top ends of the four second nut posts (11) are respectively movably connected with the four corners of the lower surface of the PCBA carrier plate (10), two first sealing grooves (12) are arranged on the outer side of the upper surface of the first shell (1), the front end and the rear end of the upper surface of the first shell (1) are respectively provided with a second sealing groove (13), two first sealing grooves (12) are arranged on the outer side of the lower surface of the second shell (3), the front end and the rear end of the lower surface of the second shell (3) are respectively provided with a second sealing groove (13), four corners of the top end inside the second shell (3) are fixedly connected with first nut columns (4), the four corners of the upper surface of the second shell (3) are provided with mounting holes, and the second shell (3) is fixedly mounted with the first shell (1) through fastening screws (7).

2. The waterproof structure of the low-voltage controller according to claim 1, wherein: trompil and embedding are installed in the middle of first shell (1) lower surface and are had waterproof circle of second rubber (8), and the waterproof circle of second rubber (8) upper surface embedding installs silica gel button (9), but not fixed connection of contact of silica gel button (9) top and PCBA support plate (10) lower surface.

3. The waterproof structure of the low-voltage controller according to claim 1, wherein: four first nut post (4) top communicates with four mounting holes of second shell (3) upper surface respectively, and the waterproof circle of fourth rubber (15) is installed all to the embedding in four mounting holes of second shell (3) upper surface, and equal movable mounting has sealed end cap (5) in four mounting holes of second shell (3) upper surface.

4. The waterproof structure of the low-voltage controller according to claim 1, wherein: two first seal grooves (12) on the first shell (1) and two first seal grooves (12) on the second shell (3) are matched in position and are embedded with two first rubber waterproof rings (2).

5. The waterproof structure of the low-voltage controller according to claim 1, wherein: two second seal grooves (13) on first shell (1) and two second seal grooves (13) on second shell (3) position phase-match and all the embedding install third rubber waterproof ring (14), equal movable mounting has connecting wire (6) in two third rubber waterproof rings (14), and connecting wire (6) one end is connected with PCBA support plate (10) electricity.

6. The waterproof structure of the low-voltage controller according to claim 1, wherein: the top ends of the four second nut columns (11) are matched with the bottom ends of the four first nut columns (4) in position and are not contacted.