CN220856236U

CN220856236U - Shunt resistor shell

Info

Publication number: CN220856236U
Application number: CN202322636763.2U
Authority: CN
Inventors: 郁静; 崔海滨
Original assignee: Anhui Laifu Electronic Technology Co ltd
Current assignee: Anhui Laifu Electronic Technology Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-04-26
Anticipated expiration: 2033-09-27

Abstract

The utility model provides a shunt resistor shell, and belongs to the technical field of shunt resistors. The shunt resistor housing comprises: the upper shell, the pivot, the picture peg, the inferior valve, the swivel becket, upper shell one side sets up two first recesses, the opposite side of first recess sets up the second recess, the pivot level sets up in first recess, the picture peg restriction is in horizontal migration in the second recess, the inferior valve corresponds the setting in upper shell below, inferior valve one side sets up the third recess, a lateral wall of third recess sets up the slot, the rim on inferior valve one side is fixed to the swivel becket, two swivel becket swing joint is on a pivot, wherein, upper shell and inferior valve inner wall contact shunt resistor's electrode part, the shell is whole with the upper shell enclosure, the picture peg can get into in the slot, upper shell and inferior valve enclose the metal contact pin part of shunt resistor, avoid shunt resistor to fall into a large amount of dust in the in-process of long-time use, and then influence shunt resistor's resistance's precision.

Description

Shunt resistor shell

Technical Field

The utility model relates to the technical field of shunt resistors, in particular to a shunt resistor shell.

Background

The current divider is an instrument for measuring direct current, and is manufactured according to the principle that voltage is generated at two ends of a resistor when direct current passes through the resistor, and conventionally, the medium and small currents are measured to be the resistor, and the large currents are measured to be the current divider. The resistor and the shunt are the most widely applied current measurement modes, current is led to pass through the resistor, voltage drops at two ends of the resistor are measured, a ohm law is directly used for converting a current signal into a voltage signal, and the operation is simple and the cost is low.

When the shunt is used for a long time, dust in the air can influence the resistance accuracy and the service life of the shunt, and therefore, the utility model provides the shunt resistor shell.

Disclosure of Invention

In order to make up for the defects, the utility model provides a shunt resistor shell, which aims to solve the problem that dust in air can affect the resistance accuracy and the service life of the existing shunt when the shunt is adhered to the air in the long-time use process.

The utility model is realized in the following way:

The present utility model provides a shunt resistor housing comprising:

the upper shell is provided with two first grooves on one side, and second grooves are formed on the opposite side of the first grooves;

The two groups of rotating shafts are horizontally arranged in the first groove;

The plugboard is limited to horizontally move in the second groove;

the lower shell is correspondingly arranged below the upper shell, a third groove is formed in one side of the lower shell, and a slot is formed in one side wall of the third groove;

Four sets of rotating rings, wherein the rotating rings are fixed at the edge opening at one side of the lower shell, and two rotating rings are movably connected to one rotating shaft;

The upper shell and the inner wall of the lower shell are in contact with the electrode part of the shunt resistor, the lower shell and the upper shell are enclosed into a whole, and the plugboard can enter the slot.

Preferably, the top surface of the upper case is reciprocally folded in a horizontal direction.

Preferably, the bottom surface of the lower case is reciprocally folded in a horizontal direction.

Preferably, the method further comprises:

Eight groups of first rubber pads, first rubber pad is fixed in the corner of epitheca inner wall, first rubber pad sets up the contact department of epitheca and the electrode part of resistance shunt.

Preferably, the method further comprises:

eight groups of second rubber pads, the second rubber pad is fixed in the corner of inferior valve inner wall, the second rubber pad sets up inferior valve and resistance shunt's motor part contact department.

Preferably, first openings are formed in two side walls of the upper shell in the horizontal direction, and the upper shell is enabled to penetrate horizontally through the first openings.

Preferably, the two side walls of the lower shell in the horizontal direction are provided with second openings, and the second openings enable the lower shell to penetrate horizontally.

Preferably, the inner wall of the upper shell is provided with a plurality of cooling fins.

Preferably, the inner wall of the lower shell is provided with a plurality of cooling fins.

The beneficial effects of the utility model are as follows: 1. in the shunt resistor shell, the upper shell and the lower shell are connected to each other to enclose the metal pin part of the shunt resistor, so that the shunt resistor is prevented from falling into a large amount of dust in the long-time use process, and the accuracy of the resistance value of the shunt resistor is prevented from being influenced.

2. In the shunt resistor shell, the top surface of the upper shell and the bottom surface of the lower shell are arranged in a reciprocating folding shape for better heat dissipation, so that better heat dissipation is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a shunt resistor housing and shunt resistor combination according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a shunt resistor housing (open state) according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a shunt resistor housing (closed state) according to an embodiment of the present utility model;

fig. 4 is a schematic view of another form of construction of the top surface of the upper shell according to an embodiment of the present utility model.

In the figure: the upper shell 1, the first groove 11, the second groove 12, the first opening 13, the rotating shaft 2, the plugboard 3, the lower shell 4, the third groove 41, the slot 42, the second opening 43, the rotating ring 5, the housing whole 6, the first rubber pad 7, the second rubber pad 8 and the shunt resistor 9.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the present utility model is further explained below with reference to the specific drawings.

It will be understood that when an element is referred to as being "fixed to" another element in this disclosure, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Examples

As shown in fig. 1-4, the present utility model provides a shunt resistor housing comprising: the upper shell 1, the rotating shaft 2, the plugboard 3, the lower shell 4 and the rotating ring 5, wherein two first grooves 11 are arranged on one side of the upper shell 1, a second groove 12 is arranged on the opposite side of the first grooves 11, the rotating shaft 2 is horizontally arranged in the first grooves 11, the plugboard 3 is limited to move horizontally in the second grooves 12, the lower shell 4 is correspondingly arranged below the upper shell 1, a third groove 41 is arranged on one side of the lower shell 4, a slot 42 is arranged on one side wall of the third groove 41, the rotating ring 5 is fixed at an edge on one side of the lower shell 4, the two rotating rings 5 are movably connected on the rotating shaft 2, wherein the upper shell 1 and the inner wall of the lower shell 4 are contacted with electrode parts of the shunt resistor 9, the lower shell 4 and the upper shell 1 are enclosed into a shell whole 6, the insert plate 3 can enter the slot 42, as shown in fig. 1, the rotating shaft 2 of the upper case 1 is connected with the rotating ring 5 of the lower case 4, the upper case 1 and the lower case 4 can rotate around the rotating shaft 2, when the insert plate 3 of the upper case 1 and the lower case 4 is not connected with the slot 42 end, i.e. as shown in fig. 2, the shunt resistor 9 is placed between the upper case 1 and the lower case 4, so that the inner wall of the upper case 1 contacts with the electrode part of the shunt resistor 9 of the inner wall of the lower case 4, it is required to say that the upper case 1 and the lower case 4 are made of insulating materials, the insert plate 3 is moved into the slot 42 after the upper case 1 and the lower case 4 are closed, so that the upper case 1 and the lower case 4 are fixed, and the insert plate 3 can be separated from the slot 42 when opened again,

It should be noted that, as shown in fig. 1, the whole casing 6 does not cover the connection screw of the shunt resistor 9, that is, the whole casing 6 only shields the metal pins and part of the electrode areas of the shunt resistor 9, the whole casing 6 has small volume and light weight, and can adapt to some applications with sensitive weight requirements, the possibility of heat accumulation of the whole casing 6 with small volume is lower, the heat generated by the shunt resistor 9 is dispersed into the surrounding environment more rapidly, and meanwhile, the whole casing 6 with small volume is beneficial to later maintenance and more convenient for replacing the shunt resistor 9.

In this embodiment, the top surface of the upper shell 1 and the top surface of the lower shell 4 are folded reciprocally along the horizontal direction, which increases the surface area of the whole shell 6, and is beneficial to heat dissipation, as shown in fig. 1-4, preferably, the vertical side surfaces in the reciprocally folded structure of the upper shell 1 and the lower shell 4 are through-arranged, so that the heat in the whole shell 6 can flow out through the vertical through position of the reciprocally folded part, and meanwhile, the reciprocally folded structure can play a certain role in dust prevention, wherein the reciprocally folded structure can be in a right angle folded angle form as shown in fig. 1-3, thus being convenient for processing, or the reciprocally folded protruding part is in an arc shape as shown in fig. 4, thus being convenient for subsequent cleaning.

In this embodiment, further comprising: the first rubber pad 7 and the second rubber pad 8, the corner of upper casing 1 inner wall is fixed to first rubber pad 7, and the contact department of electrode part of upper casing 1 and resistance shunt 9 is set up to first rubber pad 7, and the corner of lower casing 4 inner wall is fixed to second rubber pad 8, and the motor part contact department of lower casing 4 and resistance shunt is set up to second rubber pad 8. The arrangement of the rubber pad can reduce the direct contact of the upper shell 1 and the lower shell 4 with the shunt resistor 9, so that the heat dissipation area of the upper shell 1 and the lower shell 4 is increased, and the shunt resistor 9 dissipates heat better.

In the present embodiment, the upper case 1 is provided with the first openings 13 on both horizontal side walls, the first openings 13 allow the upper case 1 to pass through in the horizontal direction, and the lower case 4 is provided with the second openings 43 on both horizontal side walls, and the second openings 43 allow the lower case 4 to pass through in the horizontal direction. I.e. the part of the housing whole 6 contacting the shunt resistor 9 is made through.

In this embodiment, the inner wall of the upper shell 1 is provided with a plurality of cooling fins, the inner wall of the lower shell 4 is provided with a plurality of cooling fins, heat dissipation is increased, the cooling fins are preferably made of sheet brass, and heat conduction silicone grease is smeared on the surface of the cooling fins and a part of the area of the shunt resistor 9, so that heat conduction is enhanced.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A shunt resistor housing, comprising:

The plugboard is limited to horizontally move in the second groove;

2. A shunt resistor housing according to claim 1 wherein the top surface of said upper housing is reciprocally folded in a horizontal direction.

3. A shunt resistor housing according to claim 1, wherein the bottom surface of said lower housing is reciprocally folded in a horizontal direction.

4. A shunt resistor housing according to claim 1, further comprising:

5. A shunt resistor housing according to claim 1, further comprising:

6. A shunt resistor housing according to claim 1, wherein said upper housing is provided with first openings in both side walls in the horizontal direction, said first openings allowing said upper housing to pass through in the horizontal direction.

7. A shunt resistor housing according to claim 1, wherein said lower housing is provided with second openings in both side walls in the horizontal direction, said second openings allowing said lower housing to pass through in the horizontal direction.

8. A shunt resistor housing according to claim 1, wherein said upper housing inner wall is provided with a plurality of fins.

9. A shunt resistor housing according to claim 1, wherein said lower housing inner wall is provided with a plurality of fins.