CN219611344U

CN219611344U - Capacitor discharging device

Info

Publication number: CN219611344U
Application number: CN202320462787.8U
Authority: CN
Inventors: 李争; 任雪佳; 高鹏; 孙建国; 张永久; 冷友斌
Original assignee: Feihe Gannan Dairy Products Co ltd; Feihe Harbin Dairy Co ltd; Feihe Jilin Dairy Co ltd; Feihe Longjiang Dairy Co ltd; Feihe Tailai Dairy Products Co ltd; Feihe Zhenlai Dairy Co ltd; Heilongjiang Feihe Dairy Co Ltd
Current assignee: Feihe Gannan Dairy Products Co ltd; Feihe Harbin Dairy Co ltd; Feihe Jilin Dairy Co ltd; Feihe Longjiang Dairy Co ltd; Feihe Tailai Dairy Products Co ltd; Feihe Zhenlai Dairy Co ltd; Heilongjiang Feihe Dairy Co Ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-08-29
Anticipated expiration: 2033-03-10

Abstract

The utility model provides a capacitor discharging device, comprising: the test structure comprises a first diode and a second diode which are arranged in parallel, the conduction directions of the first diode and the second diode are opposite, and the test structure is connected between a first wire and a second wire; a first resistor connected to the first conductor; a second resistor connected between the first wire and the second wire; the second resistor and the first diode are arranged in parallel, and the second resistor and the second diode are arranged in parallel. The technical scheme of the utility model effectively solves the problem of lower efficiency of maintaining the circuit board in the related technology.

Description

Capacitor discharging device

Technical Field

The utility model relates to the technical field of capacitor discharge, in particular to a capacitor discharge device.

Background

At present, when the circuit board is maintained, the electrolytic capacitor on the circuit board can have high-voltage electricity, and if the high-voltage electricity of the electrolytic capacitor is not released, the electric shock of maintenance personnel can be caused, so that safety accidents are caused.

In the related art, when the circuit board is maintained, the electrolytic capacitor is tested through the electroprobe, the electrolytic capacitor is confirmed to be maintained again without high voltage, if the electrolytic capacitor is provided with high voltage, the high voltage of the electrolytic capacitor is required to be released first and then maintained, the maintenance efficiency can be affected by the mode, and the maintenance efficiency is further affected due to the fact that the electrolytic capacitor is large in discharging difficulty, the maintenance difficulty is further increased, the maintenance efficiency is further affected, and safety risks exist in the discharging process.

Disclosure of Invention

The utility model mainly aims to provide a capacitor discharging device which is used for solving the problem of low efficiency of maintaining a circuit board in the related art.

In order to achieve the above object, the present utility model provides a capacitive discharge device comprising: the test structure comprises a first diode and a second diode which are arranged in parallel, the conduction directions of the first diode and the second diode are opposite, and the test structure is connected between a first wire and a second wire; a first resistor connected to the first conductor; a second resistor connected between the first wire and the second wire; the second resistor and the first diode are arranged in parallel, and the second resistor and the second diode are arranged in parallel.

Further, the capacitor discharging device further comprises a third resistor connected between the first wire and the second wire and connected in series with the second resistor, and the resistance value of the second resistor is smaller than that of the third resistor.

Further, the ratio of the resistance of the first resistor to the resistance of the second resistor is between 6 and 10, and/or the ratio of the resistance of the first resistor to the resistance of the third resistor is between 4 and 7.

Further, the first resistor is located between the second resistor and the test structure.

Further, the capacitor discharge device further comprises a shell, the first diode, the second diode, the first resistor and the second resistor are all arranged in the shell, and the end part of the first wire and the end part of the second wire are both extended out of the shell.

Further, a first through hole and a second through hole are formed in the shell, the first diode is inserted into the first through hole, and the second diode is inserted into the second through hole.

Further, the capacitor discharge device further comprises a first connecting arm and a second connecting arm which are arranged at intervals and connected with the shell, the end part of the first connecting arm, which is far away from the shell, is provided with a first metal part, the end part of the second connecting arm, which is far away from the shell, is provided with a second metal part, the inside of the first connecting arm is provided with a first connecting hole, the inside of the second connecting arm is provided with a second connecting hole, a first wire is inserted into the first connecting hole and connected with the first metal part, and a second wire is inserted into the second connecting hole and connected with the second metal part.

Further, the shell, the first connecting arm and the second connecting arm are all made of insulating materials.

Further, the first connecting arm is telescopically arranged, and the second connecting arm is telescopically arranged.

Further, the first connecting arm comprises a plurality of first connecting sleeves which are arranged in a nested manner, the cross section area of the first connecting sleeves is gradually reduced from the direction close to the shell to the direction far away from the shell, the second connecting arm comprises a plurality of second connecting sleeves which are arranged in a nested manner, and the cross section area of the second connecting sleeves is gradually reduced from the direction close to the shell to the direction far away from the shell.

By applying the technical scheme of the utility model, the test structure comprises a first diode and a second diode. The test structure is connected between the first wire and the second wire, the first resistor is connected on the first wire, the second resistor is connected between the first wire and the second wire, specifically, the conduction directions of the first diode and the second diode are opposite, the second resistor and the first diode are arranged in parallel, and the second resistor and the second diode are arranged in parallel. Through foretell setting, first wire and second wire can be connected with the electric capacity, and then can realize discharging under test structure's effect, simultaneously, the setting of first resistance and second resistance can avoid the voltage in the electric capacity too big, and leads to first diode and second diode to be broken down. Meanwhile, the conducting directions of the first diode and the second diode are opposite, so that the capacitor can be discharged no matter which direction is connected with the capacitor, and the discharging efficiency of the capacitor can be improved. Therefore, the technical scheme of the utility model effectively solves the problem of lower efficiency of maintaining the circuit board in the related technology.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic circuit configuration of an embodiment of a capacitive discharge device according to the present utility model;

FIG. 2 is a schematic diagram showing a perspective structure of the capacitive discharge device of FIG. 1;

fig. 3 shows a schematic cross-sectional view of the capacitive discharge device of fig. 2.

Wherein the above figures include the following reference numerals:

10. a test structure; 11. a first diode; 12. a second diode; 21. a first wire; 22. a second wire; 31. a first resistor; 32. a second resistor; 33. a third resistor; 40. a housing; 41. a first through hole; 42. a second through hole; 51. a first connecting arm; 511. a first metal part; 512. a first connection hole; 513. a first connection sleeve; 52. a second connecting arm; 521. a second metal part; 522. a second connection hole; 523. and a second connecting sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1, in the present embodiment, the capacitive discharge device includes: test structure 10, first resistor 31, and second resistor 32. The test structure 10 comprises a first diode 11 and a second diode 12 arranged in parallel, the conducting directions of the first diode 11 and the second diode 12 are opposite, and the test structure 10 is connected between a first wire 21 and a second wire 22. The first resistor 31 is connected to the first wire 21. The second resistor 32 is connected between the first wire 21 and the second wire 22. Wherein the second resistor 32 is arranged in parallel with the first diode 11, and the second resistor 32 is arranged in parallel with the second diode 12.

By applying the technical solution of the present embodiment, the test structure 10 comprises a first diode 11 and a second diode 12. The test structure 10 is connected between the first conductive line 21 and the second conductive line 22, the first resistor 31 is connected on the first conductive line 21, the second resistor 32 is connected between the first conductive line 21 and the second conductive line 22, specifically, the conduction directions of the first diode 11 and the second diode 12 are opposite, the second resistor 32 and the first diode 11 are arranged in parallel, and the second resistor 32 and the second diode 12 are arranged in parallel. Through the above arrangement, the first conductive wire 21 and the second conductive wire 22 can be connected with the capacitor, and then discharge can be realized under the effect of the test structure 10, and meanwhile, the arrangement of the first resistor 31 and the second resistor 32 can avoid that the voltage in the capacitor is too large, so that the first diode 11 and the second diode 12 are broken down. Meanwhile, the conducting directions of the first diode 11 and the second diode 12 are opposite, so that the capacitor can be discharged no matter which direction is connected with the capacitor, and the discharging efficiency of the capacitor can be improved. Therefore, the technical scheme of the embodiment effectively solves the problem of lower efficiency of maintaining the circuit board in the related technology.

As shown in fig. 1, in the present embodiment, the capacitive discharge device further includes a third resistor 33 connected between the first conductive line 21 and the second conductive line 22 and disposed in series with the second resistor 32, and the resistance value of the second resistor 32 is smaller than that of the third resistor 33. The second resistor 32 and the third resistor 33 are connected in series, so that the resistance value in the circuit can be overlapped, and the discharging process can be safer.

As shown in fig. 1, in the present embodiment, the ratio of the resistance value of the first resistor 31 to the resistance value of the second resistor 32 is between 6 and 10, and the ratio of the resistance value of the first resistor 31 to the resistance value of the third resistor 33 is between 4 and 7. The arrangement can ensure the effect of capacitor discharge. Specifically, in the present embodiment, the resistance of the first resistor 31 is 15 kilo ohms, the resistance of the second resistor 32 is 2 kilo ohms, and the resistance of the third resistor 33 is 3 kilo ohms.

As shown in fig. 1, in the present embodiment, the first resistor 31 is located between the second resistor 32 and the test structure 10. The arrangement can improve the discharging effect of the capacitor.

As shown in fig. 1, in the present embodiment, the capacitive discharge device further includes a housing 40, and the first diode 11, the second diode 12, the first resistor 31, and the second resistor 32 are disposed in the housing 40, and the end of the first conductive wire 21 and the end of the second conductive wire 22 extend out of the housing 40. The above-mentioned arrangement of the housing 40 can protect the first diode 11, the second diode 12, the first resistor 31 and the second resistor 32 from being damaged by collision.

As shown in fig. 2 and 3, in the present embodiment, a first through hole 41 and a second through hole 42 are provided on the housing 40, the first diode 11 is inserted into the first through hole 41, and the second diode 12 is inserted into the second through hole 42. The above arrangement facilitates the operator to observe the first diode 11 and the second diode 12.

As shown in fig. 2 and 3, in the present embodiment, the capacitive discharge device further includes a first connection arm 51 and a second connection arm 52 disposed at intervals and connected to the housing 40, the end of the first connection arm 51 away from the housing 40 is provided with a first metal portion 511, the end of the second connection arm 52 away from the housing 40 is provided with a second metal portion 521, the inside of the first connection arm 51 is provided with a first connection hole 512, the inside of the second connection arm 52 is provided with a second connection hole 522, the first wire 21 is inserted into the first connection hole 512 and connected to the first metal portion 511, and the second wire 22 is inserted into the second connection hole 522 and connected to the second metal portion 521. The above-described arrangement of the first connection arm 51 and the second connection arm 52 can make the process of discharging the capacitor safer, i.e., the discharge can be achieved by simply bringing the first metal portion 511 and the second metal portion 521 into contact with the capacitor.

As shown in fig. 2 and 3, in the present embodiment, the housing 40, the first connecting arm 51 and the second connecting arm 52 are all made of insulating materials. The arrangement of the insulating material can enable operators to be safer in the discharging process of the capacitor.

As shown in fig. 2 and 3, in the present embodiment, the first connection arm 51 is telescopically arranged, and the second connection arm 52 is telescopically arranged. The arrangement can enable the universality of the capacitor discharging device to be better, and capacitors in different positions or different models can be discharged.

As shown in fig. 2 and 3, in the present embodiment, the first connecting arm 51 includes a plurality of first connecting sleeves 513 arranged in a nested manner, the cross-sectional area of the first connecting sleeve 513 gradually decreases from the direction closer to the housing 40 to the direction away from the housing 40, and the second connecting arm 52 includes a plurality of second connecting sleeves 523 arranged in a nested manner, the cross-sectional area of the second connecting sleeve 523 gradually decreases from the direction closer to the housing 40 to the direction away from the housing 40. The first connecting sleeve 513 and the second connecting sleeve 523 have simple structures, are convenient to set, and can realize the extension and retraction of the first connecting arm 51 and the second connecting arm 52 under the action of the first connecting sleeve 513 and the second connecting sleeve 523.

Specifically, when the capacitive discharge device of the present embodiment is used, the first metal portion 511 and the second metal portion 521 are in contact with the capacitor, and at this time, the first diode 11 or the second diode 12 is turned on, and when the first diode 11 or the second diode 12 is turned off, the discharge is proved to be completed. When the first and second metal parts 511 and 521 are in contact with the capacitor, neither the first diode 11 nor the second diode 12 is lighted, and it is proved that there is no electricity on the capacitor.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A capacitive discharge device, comprising:

the test structure (10) comprises a first diode (11) and a second diode (12) which are arranged in parallel, the conducting directions of the first diode (11) and the second diode (12) are opposite, and the test structure (10) is connected between a first lead (21) and a second lead (22);

a first resistor (31) connected to the first wire (21);

a second resistor (32) connected between the first wire (21) and the second wire (22);

wherein a second resistor (32) is arranged in parallel with the first diode (11), and the second resistor (32) is arranged in parallel with the second diode (12).

2. The capacitive discharge device according to claim 1, further comprising a third resistor (33) connected between the first conductor (21) and the second conductor (22) and arranged in series with the second resistor (32), the second resistor (32) having a resistance value smaller than the third resistor (33).

3. Capacitive discharge device according to claim 2, characterized in that the ratio of the resistance of the first resistor (31) to the resistance of the second resistor (32) is between 6 and 10 and/or the ratio of the resistance of the first resistor (31) to the resistance of the third resistor (33) is between 4 and 7.

4. The capacitive discharge device according to claim 1, characterized in that the first resistor (31) is located between the second resistor (32) and the test structure (10).

5. The capacitive discharge device according to claim 1, further comprising a housing (40), wherein the first diode (11), the second diode (12), the first resistor (31) and the second resistor (32) are all arranged in the housing (40), and wherein the end of the first wire (21) and the end of the second wire (22) both protrude from the housing (40).

6. The capacitive discharge device according to claim 5, characterized in that the housing (40) is provided with a first through hole (41) and a second through hole (42), the first diode (11) being inserted into the first through hole (41), the second diode (12) being inserted into the second through hole (42).

7. The capacitive discharge device according to claim 5, further comprising a first connecting arm (51) and a second connecting arm (52) which are arranged at intervals and connected with the housing (40), wherein the end of the first connecting arm (51) away from the housing (40) is provided with a first metal part (511), the end of the second connecting arm (52) away from the housing (40) is provided with a second metal part (521), the inside of the first connecting arm (51) is provided with a first connecting hole (512), the inside of the second connecting arm (52) is provided with a second connecting hole (522), and the first wire (21) is inserted into the first connecting hole (512) and connected with the first metal part (511), and the second wire (22) is inserted into the second connecting hole (522) and connected with the second metal part (521).

8. The capacitive discharge device of claim 7, wherein the material of the housing (40), the first connecting arm (51) and the second connecting arm (52) is an insulating material.

9. The capacitive discharge device according to claim 7, characterized in that the first connecting arm (51) is telescopically arranged and the second connecting arm (52) is telescopically arranged.

10. The capacitive discharge device according to claim 9, wherein the first connecting arm (51) comprises a plurality of first connecting sleeves (513) arranged in a nested manner, the cross-sectional area of the first connecting sleeves (513) gradually decreases from the direction approaching the housing (40) to the direction away from the housing (40), and the second connecting arm (52) comprises a plurality of second connecting sleeves (523) arranged in a nested manner, the cross-sectional area of the second connecting sleeves (523) gradually decreases from the direction approaching the housing (40) to the direction away from the housing (40).