CN220933177U

CN220933177U - Current sensor testing device

Info

Publication number: CN220933177U
Application number: CN202322540212.6U
Authority: CN
Inventors: 王博文; 陈奇
Original assignee: Huisi Electronics Shanghai Co ltd
Current assignee: Huisi Electronics Shanghai Co ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-05-10
Anticipated expiration: 2033-09-18

Abstract

The application discloses a current sensor testing device which is used for detecting at least one current sensor. The temperature adjusting mechanism is arranged on the testing mechanism and comprises a temperature adjusting box, the temperature adjusting box is provided with a circulating channel, a liquid inlet communicated with the circulating channel and a liquid outlet communicated with the circulating channel, and cooling liquid enters the circulating channel from the liquid inlet and is finally discharged from the liquid outlet. The current sensor is detachably mounted to the test mechanism so that the cooling liquid flowing through the flow channel is heat-exchanged with the test mechanism by being in contact with the inner wall of the flow channel, thereby adjusting the temperature of the test mechanism. The S-shaped circulation channel can prolong the flowing time of the cooling liquid in the circulation channel, so that the cooling liquid can be fully contacted with the inner wall of the circulation channel.

Description

Current sensor testing device

Technical Field

The utility model relates to the technical field of current sensor testing equipment, in particular to a current sensor testing device.

Background

A current sensor is a device for measuring the magnitude of a current in a circuit. To ensure the accuracy of the current sensor in subsequent use, the current sensor needs to be tested for its performance by a testing device before shipment.

The test device is usually provided with a strip copper bar for transmitting current. The strip copper bar can generate heat due to the self resistance during working. At present, the current sensor testing device needs to perform current detection in the testing box, and the temperature of the whole testing device is adjusted by introducing air into the testing box, however, the heat conduction performance of the air is lower, so that the temperature adjustment speed of the testing device is low and the efficiency is low.

Disclosure of utility model

It is an advantage of the present utility model to provide a current sensor testing device that adjusts the temperature of the testing device with the aid of a cooling fluid, thereby increasing the rate of temperature adjustment of the testing device.

Another advantage of the present utility model is to provide a current sensor testing device that utilizes materials with high thermal conductivity for heat transfer, thereby accelerating the rate of temperature regulation of the testing device.

To achieve at least one of the above advantages, the present utility model provides a current sensor testing apparatus for detecting at least one current sensor, the current sensor testing apparatus comprising:

A testing mechanism, the current sensor being detachably mounted to the testing mechanism;

The temperature adjusting mechanism is arranged on the testing mechanism and comprises a temperature adjusting box, the temperature adjusting box is provided with a circulating channel, a liquid inlet communicated with the circulating channel and a liquid outlet communicated with the circulating channel, and cooling liquid enters the circulating channel from the liquid inlet and is finally discharged from the liquid outlet.

According to an embodiment of the present utility model, the flow channel is S-shaped.

According to an embodiment of the utility model, the temperature adjusting box comprises a box body and two connectors, wherein the box body forms the circulation channel, the two connectors are respectively arranged on the box body, the two connectors are respectively communicated with two ends of the circulation channel, and an external pipeline is communicated with the circulation channel through the connectors.

According to an embodiment of the utility model, the tank comprises an upper housing and a lower housing, the temperature regulating tank further comprises a sealing member, the upper housing is detachably mounted on the lower housing, the sealing member is mounted at edges of the upper housing and the lower housing, and the upper housing and the lower housing jointly form the circulation channel.

According to an embodiment of the utility model, each temperature adjusting mechanism further comprises a heat conducting member mounted on the outer surface of the box body, the temperature adjusting box is in contact with the testing mechanism through the heat conducting member, the heat conducting member has a heat conducting coefficient higher than that of the box body, and the heat conducting member is made of an insulating material.

According to an embodiment of the present utility model, the temperature adjustment mechanism further includes a flow control member, the flow control member is mounted on an external pipeline in communication with the liquid inlet, the flow control member is used for bubbling the cooling liquid into the circulation channel, and the flow control member is capable of adjusting the flow rate and the flow velocity of the cooling liquid flowing into the circulation channel.

According to an embodiment of the present utility model, the temperature adjusting mechanism includes a temperature adjusting member, and the temperature adjusting member is mounted on an external pipeline connected to the liquid inlet for adjusting the temperature of the cooling liquid flowing into the circulation channel.

According to an embodiment of the present utility model, the test mechanism includes a carrying table, two connecting pieces and a copper bar set, the two connecting pieces are respectively mounted on opposite sides of the carrying table, the copper bar set includes two fixed copper bars and a connecting copper bar, the two fixed copper bars are respectively fixedly mounted on the two connecting pieces, the connecting copper bar penetrates through an installation slot formed by the current sensor, and the connecting copper bar is detachably connected between the two fixed copper bars, one side of the temperature adjusting box provided with the heat conducting piece is attached to the fixed copper bars or/and the connecting copper bars, when one fixed copper bar is supplied with current, the current flows to the connecting copper bar through the fixed copper bar supplied with current, and the current flows to the other fixed copper bar after passing through the current sensor, wherein the carrying table is made of an insulating material.

According to an embodiment of the present utility model, the testing mechanism further comprises two electrical connectors, the two electrical connectors are respectively mounted on the two connectors, the electrical connectors are used for connecting wires, and the connectors are made of conductive materials.

According to an embodiment of the utility model, the current sensor testing device further comprises a testing box and at least one air cooling piece, wherein the testing box is provided with a mounting cavity, the testing mechanism is mounted in the mounting cavity, and the air cooling piece is mounted in the testing box and used for blowing air into the mounting cavity.

Drawings

Fig. 1 shows a schematic structural diagram of a current sensor testing device according to the present utility model.

Fig. 2 shows a schematic diagram of a part of a current sensor testing device according to the present utility model.

Fig. 3 shows a schematic view of the structure of the temperature regulating tank according to the utility model.

Fig. 4 shows an exploded view of a part of the structure of the temperature regulating mechanism according to the utility model.

Fig. 5 shows a cross-sectional view of a current sensor testing apparatus according to the present utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 and 2, a current sensor testing apparatus according to a preferred embodiment of the present utility model is described in detail below, and is configured to perform current detection on at least one current sensor 900.

Preferably, the current sensor 900 forms an insertion slot 90001.

Referring to fig. 2, the current sensor testing apparatus includes at least one temperature adjustment mechanism 100 and a testing mechanism 200.

Referring to fig. 2 to 4, in particular, each of the temperature adjustment mechanisms 100 includes a temperature adjustment box 110. The temperature-adjusting tank 110 forms a circulation channel 11001, a liquid inlet 11002 communicated with the circulation channel 11001, and a liquid outlet 11003 communicated with the circulation channel 11001. The cooling liquid enters the flow channel 11001 from the liquid inlet 11002 and finally is discharged from the liquid outlet 11003.

The current sensor 900 is detachably mounted to the test mechanism 200. The temperature adjustment tank 110 is mounted to the test mechanism 200 so that the cooling liquid flowing through the flow channel 11001 is heat-exchanged with the test mechanism 200 by being in contact with the inner wall of the flow channel 11001, thereby adjusting the temperature of the test mechanism 200.

In one example, the cooling fluid is implemented as an aqueous solution or cooling oil, or the like.

It should be noted that the flow channel 11001 has an S-shape. In this way, the S-shaped flow channel 11001 can extend the duration of the flow of the cooling liquid in the flow channel 11001, and the cooling liquid flows unidirectionally in the S-shaped flow channel 11001, so that the cooling liquid can fully contact with the inner wall of the flow channel 11001, thereby improving the temperature adjusting effect of the test mechanism 200.

In one embodiment, the temperature regulating tank 110 may be machined by milling grooves to form the flow channel 11001.

As a deformable matter, the temperature-adjusting tank 110 may be formed by welding a plate material to form the flow passage 11001.

It should be noted that the flow channel 11001 formed by the temperature-adjusting box 110 has different lengths and/or cross-sectional areas, and the heat exchange ratio to the testing mechanism 200 is also different. It is understood that the user may select the temperature adjusting mechanism 100 with proper size, volume, heat exchange ratio and number according to the actual requirement, so as to ensure the temperature adjusting effect on the testing mechanism 200.

Preferably, the temperature regulating tank 110 comprises a tank 111 and two connectors 112, wherein the tank 111 forms the flow channel 11001. The two joints 112 are respectively mounted to the case 111, and the two joints 112 are respectively communicated with both end portions of the flow passage 11001 so that an external pipe communicates with the flow passage 11001 through the joints 112.

In one embodiment, the housing 111 is implemented from an insulating material.

Referring to fig. 4, further, each of the temperature adjustment mechanisms 100 further includes a heat conducting member 120.

The heat conductive member 120 is mounted to an outer surface of the case 111. The temperature-adjusting tank 110 is in contact with the testing mechanism 200 through the heat-conducting member 120. The thermal conductive member 120 has a thermal conductivity higher than that of the case 111, and the thermal conductive member 120 is made of an insulating material, and the material of the case 111 may not be limited. In this way, the cooling liquid flowing in the temperature adjustment tank 110 exchanges heat with the test mechanism 200 through the heat conductive member 120. Since the heat conductive member 120 has good heat conductivity, the temperature adjusting effect of the temperature adjusting mechanism 100 on the temperature adjusting of the test mechanism 200 can be improved.

In one example, the thermally conductive member 120 is implemented as a thermally conductive silicone sheet.

In one embodiment, the housing 111 is integrally formed.

As a modification of the previous embodiment, the case 111 includes an upper case 1111 and a lower case 1112. The tempering tank 110 further comprises a sealing member 113. The upper case 1111 is detachably mounted to the lower case 1112, and the sealing member 113 is mounted at a joint of the upper case 1111 and the lower case 1112. The upper housing 1111 and the lower housing 1112 together form the flow channel 11001. That is, the user can clean the inner wall of the flow channel 11001 by detaching the upper case 1111 from the lower case 1112, thereby ensuring smooth flow of the flow channel 11001.

In one example, the seal 113 is implemented as a rubber ring.

Further, the temperature regulating mechanism 100 also includes a flow control member 130. The flow control member 130 communicates with the liquid inlet 11002 via an external connection, the flow control member 130 is configured to blow cooling liquid into the flow channel 11001, and the flow control member 130 is configured to adjust the flow rate and the flow velocity of the cooling liquid flowing into the flow channel 11001.

In one example, the flow control 130 is implemented to include a pump.

Further, the temperature adjusting mechanism 100 includes a temperature adjusting member 140. The temperature adjusting member 140 is mounted on an external pipeline in communication with the liquid inlet 11002, and is used for adjusting the temperature of the cooling liquid flowing into the circulation channel 11001. It will be appreciated that coolant flows through the flow channel 11001 at different temperatures can provide different degrees of temperature regulation of the test mechanism 200.

In one example, the temperature adjusting member 140 may be implemented as, but not limited to, any one of a cold heat exchanging mechanism, a pneumatic fin mechanism, and a liquid cooling heat dissipating mechanism. Specifically, the test mechanism 200 includes a carrier 210, two connectors 220, and a copper bar set 230.

In one embodiment, two of the connectors 220 are respectively mounted on opposite sides of the carrying platform 210. The copper bar set 230 includes two fixed copper bars 231 and a connecting copper bar 232. The two fixed copper bars 231 are fixedly installed to the two connection members 220, respectively. The connection copper bar 232 penetrates through the insertion groove 90001 formed by the current sensor 900, and the connection copper bar 232 is detachably connected between the two fixed copper bars 231. The side of the temperature adjusting box 110, on which the heat conducting member 120 is mounted, is attached to the fixed copper bar 231 or/and the connection copper bar 232, so as to adjust the temperature of the fixed copper bar 231 or/and the connection copper bar 232.

When a current is applied to one of the fixed copper bars 231, the current flows to the connection copper bar 232 through the fixed copper bar 231 to which the current is applied, and the current flows to the other fixed copper bar 231 after passing through the insertion groove 90001 formed by the current sensor 900, thereby realizing performance detection of the current sensor 900. In this process, the excessive current load may cause the temperature of the fixed copper bar 231 and the connection copper bar 232 to rise suddenly, and the cooling liquid flowing through the temperature adjusting tank 110 absorbs the temperature of the fixed copper bar 231 and/or the connection copper bar 232 through the heat conducting member 120, so as to quickly adjust the temperature of the fixed copper bar 231 and/or the connection copper bar 232.

Preferably, the carrier 210 is implemented of an insulating material.

Preferably, the connection 220 is made of an electrically conductive material. The test mechanism 200 also includes two electrical contacts 240. Two of the power connectors 240 are mounted to the two of the connection members 220, respectively, and the power connectors 240 are made of a conductive material so that an external current is communicated with the fixed copper bar 231 through the power connectors 240.

In one example, the electrical connector 240 is implemented as a copper tube nose.

Referring to fig. 1, further, the current sensor testing apparatus further includes a testing box 300. The test box 300 has a mounting cavity 30001, and the test mechanism 200 is mounted to the mounting cavity 30001.

It should be noted that the flow control member 130 and the temperature adjusting member 140 are disposed outside the test box 300, so that a user can directly adjust and control the flow control member 130 and the temperature adjusting member 140.

Preferably, the current sensor testing device further comprises at least one air cooling member 400. The air cooling member 400 is mounted to the test box 300 to blow air into the mounting chamber 30001, thereby controlling the temperature of the test mechanism 2000.

In one example, the air cooler 400 is implemented to include a fan.

Referring to fig. 5, further, the temperature adjustment mechanism 100 further includes a heat preservation layer group 150. The insulation layer 150 is disposed on the outer peripheral wall of the case 111 facing the inner wall of the installation cavity 30001, so as to reduce heat exchange between the case 111 and the heat conducting member 120 and the environment.

Preferably, the insulation layer 150 includes an insulation layer 151. The insulating layer 151 is disposed on the outer peripheral wall of the case 111 facing the inner wall of the installation cavity 30001, so as to reduce temperature loss of the case 111.

In one example, the insulating layer 151 is implemented to be made of a high temperature foam/silicone material.

Preferably, the insulation layer 150 further includes an insulation layer 152. The heat insulation layer 152 is disposed on a side of the heat insulation layer 151 facing away from the case 111, so as to reduce the influence of the external environment on the case 111.

In one example, the insulating layer 152 is implemented as being made of an aluminum foil material.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. The current sensor testing device is used for detecting at least one current sensor, and is characterized in that the current sensor testing device comprises:

2. The current sensor testing device of claim 1, wherein the flow channel is S-shaped.

3. The current sensor testing device according to claim 2, wherein the temperature adjusting tank includes a tank body and two joints, wherein the tank body forms the flow passage, the two joints are respectively mounted to the tank body, and the two joints are respectively communicated with both end portions of the flow passage, and an external pipe is communicated with the flow passage through the joints.

4. The current sensor testing device of claim 3, wherein the housing comprises an upper housing and a lower housing, the temperature regulating tank further comprising a seal, the upper housing being removably mounted to the lower housing, and the seal being mounted at a seam of the upper housing and the lower housing, the upper housing and the lower housing together forming the flow channel.

5. The current sensor testing device according to claim 3 or 4, wherein each of the temperature adjustment mechanisms further comprises a heat conductive member mounted to an outer surface of the case, the temperature adjustment case is in contact with the testing mechanism through the heat conductive member, a heat conductive coefficient of the heat conductive member is higher than that of the case, and the heat conductive member is made of an insulating material.

6. The current sensor testing device of claim 5, wherein the temperature adjustment mechanism further comprises a flow control member mounted on an external conduit in communication with the inlet, the flow control member configured to blow coolant into the flow channel, and the flow control member configured to adjust the flow rate and the flow rate of the coolant into the flow channel.

7. The current sensor testing device of claim 6, wherein the temperature adjusting mechanism comprises a temperature adjusting member mounted on an external pipeline in communication with the liquid inlet for adjusting the temperature of the cooling liquid flowing into the flow channel.

8. The current sensor testing device according to claim 7, wherein the testing mechanism comprises a carrying table, two connecting members and a copper bar group, the two connecting members are respectively installed at opposite sides of the carrying table, the copper bar group comprises two fixed copper bars and a connecting copper bar, the two fixed copper bars are respectively fixedly installed at the two connecting members, the connecting copper bar penetrates through an installation slot formed by the current sensor, the connecting copper bar is detachably connected between the two fixed copper bars, one side of the temperature adjusting box provided with the heat conducting member is attached to the fixed copper bars or/and the connecting copper bar, when one fixed copper bar is electrified, the current flows to the connecting copper bar through the fixed copper bar electrified, and the current flows to the other fixed copper bar after passing through the current sensor, wherein the carrying table and the temperature adjusting box are made of insulating materials.

9. The current sensor testing device of claim 8, wherein the testing mechanism further comprises two electrical connectors, the two electrical connectors being mounted to the two connectors, respectively, the electrical connectors being configured to connect wires, the connectors and the electrical connectors each being formed of an electrically conductive material.

10. The current sensor testing apparatus of claim 9, further comprising a test box having a mounting cavity, the test mechanism being mounted to the mounting cavity, and at least one air-cooled member mounted to the test box for blowing air into the mounting cavity.