CN215989502U

CN215989502U - Grounding structure applied to compressor

Info

Publication number: CN215989502U
Application number: CN202122506847.5U
Authority: CN
Inventors: 邱忠本
Original assignee: Rechi Precision Co Ltd
Current assignee: Rechi Precision Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-08
Anticipated expiration: 2031-10-18

Abstract

A grounding structure applied to a compressor, comprising: the electric connector is provided with a first electronic pin, a second electronic pin and a third electronic pin, wherein the distances between any two electronic pins are equal; the junction box is clamped with the electric connector and is provided with three electronic contact holes which are correspondingly clamped with the first electronic pin, the second electronic pin and the third electronic pin respectively; the ground terminal is inserted into the containing groove of the junction box; when the terminal box is clamped with the electric joint, the grounding terminal can touch the surface of the electric joint, so that the grounding requirement is easily finished, the assembly process is simplified, the assembly efficiency is improved, the purposes of saving time and labor, being simple and reliable are achieved, and the grounding performance of the compressor is ensured.

Description

Grounding structure applied to compressor

Technical Field

The utility model relates to the technical field of compressors, in particular to a grounding structure applied to a compressor.

Background

According to the prior art, the rotary compressor mainly comprises a top cover assembly, a machine shell, a bottom cover, a foot rest, a motor unit, a crankshaft, a pump body unit and a filter flask arranged outside the machine shell, wherein the top cover and the bottom cover are respectively fixedly welded at the upper end and the lower end of the machine shell and seal the two ends of the machine shell; the pump body unit is positioned at one end of the interior of the machine shell close to the bottom cover and mainly comprises a cylinder body and a ring; the pump body unit is connected with a filter flask positioned outside the casing through an air suction connecting pipe, an inlet pipe is arranged at the upper end of the filter flask, a low-temperature low-pressure gas refrigerant medium in the inlet pipe enters the pump body unit through the air suction connecting pipe after being filtered by the filter flask.

Compressors are widely used in various household appliances, such as: in a refrigeration (heat) circulation system of an air conditioner, a dryer, a dehumidifier, a dishwasher, a heat pump water heater, a refrigerator, a freezer and the like, a household appliance manufacturer often requires a compressor supplier to arrange a grounding threaded hole on the compressor according to 3C and UL related certification requirements and to ensure the safety of the electrical appliance of the compressor so as to install a grounding terminal, and the grounding threaded hole of the compressor is mostly designed on a filter bottle bracket or on a hem of a tripod of the compressor at present. The screw hole needs to be punched with a bottom hole in advance to be tapped. In order to ensure the conductivity, the contact surface of the threaded hole and the grounding terminal has certain antirust capacity and is not painted. If the ground connection screw hole is on the filter flask support, the compressor manufacture factory can carry out nickel plating to whole filter flask support usually to can need before the coating of compressor to fill in at ground connection screw hole safety rubber buffer.

However, with the above prior art, there are the following disadvantages:

1. the compressor is used for household appliances and has a grounding function so as to avoid the occurrence of an electric induction accident and guarantee the safety of personnel. Therefore, when a manufacturer assembles the compressor, the manufacturer can connect the power line and the grounding line of the compressor, but due to the diversity of grounding requirements, various problems of the production line are easily caused.

2. When the household appliance is provided with the compressor, the rubber protective plug is required to be removed. The integral nickel plating surface treatment mode of the bracket increases the processing time and the processing cost of the bracket; the use of protective rubber on the support increases labor and protection costs. When the grounding threaded hole is arranged on the bottom foot, a grounding screw and a gasket are usually pre-installed before coating of the compressor, and the screw and the gasket are also required to be taken down when the compressor is installed in the air conditioner. Therefore, the grounding threaded hole is designed on the filter bottle bracket or the hem of the triangular foot rest, which is not beneficial to saving the cost.

In view of the above, the present inventor has made an intensive study on the above prior art and applied the study in cooperation with the theory to try to solve the above problems, which is an improved objective of the present inventor.

Disclosure of Invention

Therefore, the present invention is directed to provide a grounding structure for a compressor, which overcomes the drawbacks of conventional grounding structure, simplifies the assembly process of grounding terminal, saves time and labor, and ensures the grounding performance of the compressor.

To achieve the above objects, the present invention provides a grounding structure for a compressor, comprising:

the electric connector is provided with a first electronic pin, a second electronic pin and a third electronic pin, wherein the distances between any two electronic pins are equal;

the junction box is clamped with the electric connector and is provided with three electronic contact holes which are correspondingly clamped with the first electronic pin, the second electronic pin and the third electronic pin respectively;

the method is characterized in that:

the junction box is provided with a grounding terminal which is abutted against the electric connector.

Preferably, the terminal box has a first surface and a second surface opposite to each other, and a receiving groove is formed at a front end of the second surface, into which the ground terminal is inserted.

Preferably, the depth of the accommodating groove of the junction box is H1, the total length of the grounding terminal is L1, and H1 is equal to or greater than L1.

Preferably, two sides of the bottom end of the accommodating groove are respectively formed with a resisting end, and the resisting end extends towards the inside of the accommodating groove, so that a groove is formed between the two resisting ends.

Preferably, the grounding terminal has a main body, a plurality of elastic side wall pieces and an elastic contact piece, the elastic side wall pieces are arranged on two sides of the front end of the main body, and the elastic contact piece is arranged on the front end of the main body and integrally protrudes and is opposite to the direction of the main body.

Preferably, the elastic contact piece comprises a piece body part and an abutting part, wherein the piece body part is integrally connected with the front end of the body part and extends to enable the piece body part to be opposite to the body part; the abutting portion is connected to the sheet portion and is used for abutting against the electrical connector.

Preferably, before the elastic contact piece is compressed, the top end of the abutting part is set as point A, after the elastic contact piece is compressed, the top end of the abutting part is set as point B, the distance between the point A and the point B is D, and the requirement that D is more than or equal to 0.5mm and less than or equal to 20mm is met.

Preferably, the two sides of the rear end of the ground terminal extend downwards to form arc-shaped pieces, so that the rear end of the ground terminal is formed with a jack portion.

Preferably, the front end of the first surface is provided with a plurality of electronic access slots, the electronic contact holes are arranged on the second surface, and the electronic contact holes penetrate through the first surface and are respectively communicated with the electronic access slots.

Preferably, the ground terminal is made of an elastic material.

According to the structure, the utility model has the beneficial effects that: the accommodating groove of the junction box is used for the ground terminal to be inserted into, wherein the ground terminal is made of elastic materials; when the terminal box is clamped with the electric joint, the abutting part of the elastic contact sheet of the grounding terminal can touch the surface of the electric joint, thereby easily completing the grounding requirement; the structure overcomes the defect of grounding of the traditional compressor, simplifies the assembly process, improves the assembly efficiency, saves time and labor, is simple and reliable, and ensures the grounding performance of the compressor.

Drawings

Fig. 1 is a perspective view of a grounding structure applied to a compressor according to the present invention.

Fig. 2 is a sectional view of a grounding structure applied to a compressor according to the present invention.

Fig. 3 is an exploded view of a grounding structure applied to a compressor according to the present invention.

Fig. 4 is a bottom perspective view of the terminal block applied to the grounding structure of the compressor in accordance with the present invention.

Fig. 5 is a side view of a ground terminal of a ground structure applied to a compressor according to the present invention.

1 Electrical terminal 10 mounting base

101 first surface of end cap 1011

1012 second surface 1013 via

1014 annular protuberance 102 skirt

11 first electronic pin 12 second electronic pin

13 third electronic pin

2 terminal box 21 electronic contact hole

22 contact hole 23 electronic contact hole

24 first face 241 electronic access slot

25 second face 251 accommodating groove

2511 abutting end 2512 groove

3 ground terminal 331 body portion

32 resilient side wall piece 33 resilient contact piece

331 sheet part 332 abutting part

34 arc-shaped piece of insertion hole part 341

D distance H1 depth

L1 length

Detailed Description

For the purpose of understanding the nature, content and advantages of the present invention, as well as the advantages thereof, reference should be made to the following detailed description of the preferred embodiment, which is to be read in connection with the accompanying drawings, wherein the same or similar elements are illustrated in the drawings and are not intended to limit the utility model to the exact construction and operation illustrated and described, but rather, the utility model is to be construed broadly and limited only by the appended drawings.

First, referring to fig. 1 to 5, fig. 1 is a perspective view of a grounding structure applied to a compressor according to the present invention, fig. 2 is a sectional view of the grounding structure applied to the compressor according to the present invention, fig. 3 is an exploded view of the grounding structure applied to the compressor according to the present invention, fig. 4 is a bottom perspective view of a terminal box of the grounding structure applied to the compressor according to the present invention, and fig. 5 is a side view of a grounding terminal of the grounding structure applied to the compressor according to the present invention. The grounding structure applied to the compressor of the present invention comprises: an electrical connector 1, a terminal block 2 and a ground terminal 3.

The electrical connector 1, which has a predetermined shape as a whole, has a first electronic pin 11, a second electronic pin 12 and a third electronic pin 13, which are all equidistant from each other, that is, the first electronic pin 11, the second electronic pin 12 and the third electronic pin 13 are arranged equidistantly on the electrical connector 1 in a regular triangle, that is, the first electronic pin 11, the second electronic pin 12 and the third electronic pin 13 are CSR pins, where C represents a main line, S represents a secondary line and R represents a common line.

To further explain the overall structure of the electrical connector 1, the electrical connector 1 further includes a mounting base 10 made of metal, the mounting base 10 having an end cap 101 and a skirt 102; wherein, the overall outer contour of the end cap 101 is circular, and the end cap 101 has a first surface 1011 and a second surface 1012 opposite to the first surface 1011; a plurality of through holes 1013 penetrating the first surface 1011 and the second surface 1012 are formed on the end cap 101; a protruding annular protrusion 1014 is arranged around the through hole 1013, and the annular protrusion 1014 is positioned at the lower side of the end cover 101; the skirt 102 is located at the lower end of the end cap 101, and the outer diameter of the skirt 102 is larger than that of the end cap 101.

The junction box 2 is clamped with the electric connector 1, and the junction box 1 is provided with three electronic contact holes 21, 22 and 23; are correspondingly engaged with the first electronic pin 11, the second electronic pin 12 and the third electronic pin 13, respectively. The junction box 2 has a first surface 24 and a second surface 25 opposite to each other, and a receiving groove 251 is disposed at a front end of the second surface 25, the receiving groove 251 is used for the insertion of the grounding terminal 3, and the grounding terminal 3 is made of elastic material.

With the above structure, the following is further described:

in this embodiment, the depth of the receiving groove 251 of the second surface 25 of the terminal box 2 is H1, the total length of the ground terminal 3 is L1, and H1 is greater than or equal to L1, and the ground terminal 3 is prevented from being exposed out of the receiving groove 251 when the ground terminal 3 is inserted into the receiving groove 251 by using the condition that the depth H1 of the receiving groove 251 is greater than or equal to the total length L1 of the ground terminal 3.

In this embodiment, two abutting ends 2511 are respectively formed at two sides of the bottom end of the receiving groove 251, the abutting ends 2511 extend towards the receiving groove 251, so that a groove 2512 is formed between the two abutting ends 2511, and by this condition, it can be ensured that when the ground terminal 3 is inserted into the receiving groove 251, the two abutting ends 2511 can prevent the ground terminal 3 from falling.

In this embodiment, the front end of the first surface 24 of the terminal box 2 is provided with a plurality of electronic access slots 241, the electronic contact holes 21, 22, 23 are provided on the second surface 25, the electronic contact holes 21, 22, 23 penetrate through the first surface 24 and are respectively communicated with the electronic access slots 241, and the electronic access slots 241 are respectively used for the first electronic pins 11, the second electronic pins 12 and the third electronic pins 13 of the electrical connector 1 to be inserted.

In this embodiment, the grounding terminal 3 has a main body 31, a plurality of elastic side wall pieces 32 and an elastic contact piece 33, the elastic side wall pieces 32 are disposed on two sides of the front end of the main body 31 and extend downward, the elastic contact piece 33 is disposed on the front end of the main body 31 and integrally protrudes and is opposite to the direction of the main body 31; when the grounding terminal 3 is inserted into the receiving groove 251 of the junction box 2, the elastic side wall pieces 32 elastically abut against two side walls of the receiving groove 251 for positioning, so as to prevent the connecting terminal 3 from falling off, and the elastic side wall pieces 32 can generate a restoring elastic force after being pressed and deformed; wherein the number of the elastic side wall pieces 32 on one side of the body portion 31 is at least more than one.

In this embodiment, the elastic contact piece 33 includes a sheet body 331 and an abutting portion 332, the sheet body 331 is integrally connected to the front end of the main body 31 and extends, so that the sheet body 331 is opposite to the main body 31; the abutting portion 332 is connected to the sheet portion 331, and the abutting portion 332 is arc-shaped as a whole and is used for abutting against the electrical connector 1; when the ground terminal 3 is inserted into the receiving groove 251 of the terminal box 2, the sheet body 331 of the elastic contact piece 33 extends out of the groove 2512 of the receiving groove 251 to reach the abutting portion 332 attached to the surface of the electrical connector 1, and the elastic contact piece 33 can generate a restoring elastic force after being pressed and deformed.

In this embodiment, before the elastic contact piece 33 is compressed, the top end of the abutting portion 332 is set as point a, after the elastic contact piece 33 is compressed, the top end of the abutting portion 332 is set as point B, the distance between point a and point B is D, and D is greater than or equal to 0.5mm and less than or equal to 20mm, specifically, when the grounding terminal 3 is inserted into the accommodating groove 251 of the terminal box 2 and the terminal box 2 is not combined with the electrical connector 1, the abutting portion 332 of the elastic contact piece 33 of the grounding terminal 3 is not in contact with the electrical connector 1, and at this time, the top end of the abutting portion 332 is the point a; when the terminal block 2 is assembled with the electrical connector 1, the abutting portion 332 of the elastic contact piece 33 of the ground terminal 3 touches the electrical connector 1, and at this time, the top end of the abutting portion 332 is the point B, so the distance D between the point a and the point B, that is, the elastic range of the elastic contact piece 33 of the ground terminal 3 is between 0.5mm and 20 mm.

In this embodiment, the arc pieces 341 extend downward from two sides of the rear end of the ground terminal 3, so that the rear end of the ground terminal 3 forms a receptacle portion 34, and the receptacle portion 34 of the ground terminal 3 is used for inserting a ground copper end.

To sum up, the terminal box 2 of the present invention is provided with a receiving groove 251, two sides of the bottom end of the receiving groove 251 are respectively formed with a resisting end 2511, and a groove 2512 is formed between the two resisting ends 2511, so that when the ground terminal 3 is inserted into the receiving groove 251, the structure of the two resisting ends 2511 and the elastic side wall pieces 32 of the ground terminal 3 are elastically abutted against the two walls of the receiving groove 251 for positioning, wherein the elastic side wall pieces 32 can generate a restoring elastic force after being deformed, so as to prevent the ground terminal 3 from falling off, and the sheet body portion 331 of the elastic contact piece 33 extends out of the groove 2512 of the receiving groove 251, wherein the elastic contact piece 33 can generate a restoring elastic force after being deformed; therefore, when the terminal block 2 is engaged with the electrical connector 1, the abutting portion 332 of the elastic contact piece 33 of the grounding terminal 3 will touch the surface of the electrical connector 1, thereby easily completing the grounding requirement.

The utility model has the beneficial effects that:

the ground terminal 3 is inserted through the receiving groove 251 of the junction box 2, wherein the ground terminal 3 is made of elastic material; when the terminal block 2 is engaged with the electrical connector 1, the abutting portion 332 of the elastic contact piece 33 of the grounding terminal 3 will touch the surface of the electrical connector 1, so as to easily accomplish the grounding requirement; the structure overcomes the defect of grounding of the traditional compressor, simplifies the assembly process, improves the assembly efficiency, saves time and labor, is simple and reliable, and ensures the grounding performance of the compressor.

However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the patent specification should be included in the scope of the present invention.

Claims

1. A grounding structure applied to a compressor, comprising:

the method is characterized in that:

2. The grounding structure as claimed in claim 1, wherein the terminal box has a first surface and a second surface opposite to each other, and a receiving groove is formed at a front end of the second surface for the grounding terminal to be inserted into.

3. The grounding structure as claimed in claim 2, wherein the depth of the receiving groove of the terminal box is H1, the total length of the grounding terminal is L1, and H1 ≧ L1 is satisfied.

4. The grounding structure as claimed in claim 2, wherein a pair of opposing ends are formed at two sides of the bottom end of the receiving cavity, and the opposing ends extend toward the receiving cavity, such that a groove is formed between the two opposing ends.

5. The grounding structure for a compressor as claimed in claim 2, wherein the grounding terminal has a body portion, a plurality of elastic side wall pieces disposed at both sides of the front end of the body portion, and an elastic contact piece disposed at the front end of the body portion to protrude integrally in a direction opposite to the body portion.

6. The grounding structure for a compressor as claimed in claim 5, wherein the resilient contact plate includes a plate body portion integrally connected to the front end of the main body portion and extending therefrom such that the plate body portion is opposite to the main body portion; the abutting portion is connected to the sheet portion and is used for abutting against the electrical connector.

7. The grounding structure for a compressor as claimed in claim 6, wherein the top end of the abutting portion is set as point A before the elastic contact piece is compressed, the top end of the abutting portion is set as point B after the elastic contact piece is compressed, the distance between point A and point B is D, and the distance between point A and point B satisfies 0.5mm ≦ D ≦ 20 mm.

8. The grounding structure for a compressor as claimed in claim 2, wherein the rear end of the grounding terminal has arc-shaped pieces extending downward at both sides thereof such that the rear end of the grounding terminal is formed with a socket portion.

9. The grounding structure for a compressor as claimed in claim 2, wherein the front end of the first surface has a plurality of electrical contact slots, the electrical contact holes are formed in the second surface, and the electrical contact holes penetrate the first surface and are respectively connected to the electrical contact slots.

10. The grounding structure for a compressor as claimed in claim 1, wherein the grounding terminal is made of an elastic material.