CN216559122U - Hall current sensor is testing arrangement in batches - Google Patents
Hall current sensor is testing arrangement in batches Download PDFInfo
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- CN216559122U CN216559122U CN202122930404.9U CN202122930404U CN216559122U CN 216559122 U CN216559122 U CN 216559122U CN 202122930404 U CN202122930404 U CN 202122930404U CN 216559122 U CN216559122 U CN 216559122U
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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Abstract
The utility model provides a batch testing device for Hall current sensors, which comprises two pressing plates, namely an upper pressing plate and a lower pressing plate, wherein the Hall current sensors to be tested are placed between the two pressing plates, a plurality of floating current bars are arranged on the upper surface of the lower pressing plate, gaps for placing the Hall current sensors are reserved between the adjacent floating current bars, the floating current bars are conductors, and the two floating current bars at the head end and the tail end are connected with a wiring terminal. The batch testing device for the Hall current sensors, which is created by the utility model, is characterized in that the clamping force of the current bar is maintained at a certain level by means of the design of the floating current bar, the reliable contact between the tooling current bar and the primary side current bar of the product is ensured, and the damage of the tooling test current bar to the indentation, scratch and the like of the primary side current bar of the product can be effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of batch testing of Hall current sensors, and particularly relates to a batch testing device for Hall current sensors.
Background
In the prior art scheme, when a rated current is loaded on a primary side current bar of a small Hall current sensor (200A), the test is generally carried out by assembling auxiliary tools such as a cylinder, a large force clamp, a bench clamp and the like and testing a red copper test current bar, and the tools have the following defects:
1. the fixture has large clamping force, and is easy to cause poor effects such as indentation, scratching and the like on a primary side current bar of the Hall current sensor, damage to a coating and influence on the service life of the sensor;
2. the type of tool has a complex structure, is much larger than a Hall current sensor in size, does not have the possibility of simultaneously testing a plurality of sensors, can only test a single sensor, and cannot improve the product efficiency;
3. the tool is complex in structure and large in size, and a plurality of components which cannot resist the high temperature of 125 ℃ exist, so that the tests such as temperature drift and aging cannot be performed in a temperature box.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a batch testing apparatus for hall current sensors.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a Hall current sensor batch testing device comprises two pressing plates, namely an upper pressing plate and a lower pressing plate, a Hall current sensor to be tested is placed between the two pressing plates, the upper surface of the lower pressing plate is provided with a plurality of floating current rows, each floating current row is installed on the lower pressing plate through an independent elastic assembly, a gap for placing the Hall current sensor is reserved between adjacent floating current rows, one of the two primary side current rows of the Hall current sensor is placed on the floating current row on one side, and the other is placed on the floating current row on the other side;
the upper pressing plate is placed above the Hall current sensor and used for pressing the Hall current sensor downwards;
the floating current bar is a conductor, and the two floating current bars at the head end and the tail end are connected with a wiring terminal.
Furthermore, the lower surface of the lower pressing plate is also provided with a floating current bar which is opposite to the floating current bar of the lower pressing plate.
Furthermore, the floating current rows are arranged in two rows, and the two rows of floating current rows are connected through a flexible lead.
Furthermore, the wiring terminal is fixedly connected to the pressing plate, and the wiring terminal is connected with the floating current bar through a flexible lead.
Further, the width between adjacent floating current rows corresponds to the width of the casting of the hall current sensor.
Furthermore, the elastic component comprises a fixing bolt in threaded connection with the pressing plate, a screw rod of the fixing bolt penetrates through the pressing plate and extends to one side with a floating current bar, a through hole with a diameter corresponding to the screw rod is formed in the center of the floating current bar, a floating spring is sleeved on the outer side of the screw rod, one end of the floating spring is fixedly connected with the pressing plate, and the other end of the floating spring is fixedly connected with the floating current bar.
Furthermore, the fixing bolt is an inner hexagonal counter bore bolt, and a counter bore corresponding to a nut of the fixing bolt is arranged on one side, away from the floating current bar, of the pressure plate.
Compared with the prior art, the batch testing device for the Hall current sensors has the following advantages:
(1) the batch testing device for the Hall current sensors, which is created by the utility model, is characterized in that the clamping force of the current bar is maintained at a certain level by means of the design of the floating current bar, the reliable contact between the tooling current bar and the primary side current bar of the product is ensured, and the damage of the tooling test current bar to the indentation, scratch and the like of the primary side current bar of the product can be effectively reduced.
(2) The utility model greatly reduces the volume of the test tool, and can place a plurality of products into the temperature box for testing so as to meet the test requirements of product aging, temperature test and the like.
Drawings
The accompanying drawings, which 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 without limitation. In the drawings:
fig. 1 is an overall structural diagram of a batch testing device for hall current sensors according to an embodiment of the present invention;
FIG. 2 is a structural view of a lower platen according to an embodiment of the present invention;
FIG. 3 is a front view of the apparatus according to the embodiment of the present invention;
FIG. 4 is a cross-sectional view of a spring assembly according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a test conduction according to an embodiment of the present invention.
Reference numerals:
1. a lower pressing plate; 2. a floating current bar; 21. a floating spring; 22. fixing the bolt; 3. a Hall current sensor; 31. casting the body; 32. a primary side current bar; 4. a flexible wire; 5. a wiring terminal; 6. And (5) an upper pressing plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the utility model, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable 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 meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The utility model will be described in detail with reference to the following embodiments with reference to the attached drawings.
As shown in fig. 1, a batch testing device for hall current sensors comprises two pressing plates, namely an upper pressing plate 6 and a lower pressing plate 1, wherein hall current sensors to be tested are placed between the two pressing plates, the upper surface of the lower pressing plate 1 is provided with a plurality of floating current rows 2, each floating current row 2 is installed on the lower pressing plate 1 through an independent elastic assembly, a gap for placing a hall current sensor 3 is reserved between adjacent floating current rows 2, and two primary side current rows 32 of the hall current sensors 3 are arranged, wherein one of the two primary side current rows is placed on the floating current row 2 on one side, and the other one of the two primary side current rows is placed on the floating current row 2 on the other side;
the upper pressing plate 6 is placed above the Hall current sensor 3 and used for pressing the Hall current sensor 3 downwards;
as shown in fig. 1 and 2, the floating current bar 2 is a conductor, is made of red copper and is plated with tin on the surface to prevent oxidation, the two floating current bars 2 at the head end and the tail end are connected with a connecting terminal 5, and one floating current bar is connected with a positive test lead and the other floating current bar is connected with a negative test lead during testing.
The lower surface of the lower pressing plate 1 is also provided with a floating current bar 2, the floating current bar 2 is opposite to the floating current bar 2 of the lower pressing plate 1, the floating current bar 2 is arranged at the upper part and the lower part, so that the floating current bar 2 is completely attached to the primary current bar 32 of the Hall current sensor 3, and the contact resistance is reduced.
The upper and lower pressing plates 1 can be tightly pressed through bolt matching during testing, and bolt holes can be specifically arranged at the edges or the central areas of the upper and lower pressing plates 1 and are matched with bolts for fixing.
The arrangement of the floating current bars 2 is two lines, the two floating current bars 2 are connected through the flexible lead 4, the working space on the pressing plate is reasonably utilized, and batch testing of more Hall current sensors 3 can be realized under the condition that the pressing plate is not lengthened.
The wiring terminal 5 is fixedly connected to the pressing plate, and the wiring terminal 5 is connected with the floating current bar 2 through the flexible lead 4. The upper pressing plate 6 and the lower pressing plate 1 are fixedly connected with the wiring terminals 5, when the test is carried out, as shown in fig. 3, the two wiring terminals 5 on the same side in fig. 3 can be connected with the upper wiring terminal 5 and the lower wiring terminal 5 at the same time, and can also be connected with one wiring terminal, preferably connected with two wiring terminals at the same time, so that the internal current can reach 200A more easily, and under the condition that the test current can reach 200A, only one wiring terminal 5 can be connected.
The width between adjacent floating current row 2 corresponds with the width of pouring body 31 of hall current sensor 3, can carry on spacingly to hall current sensor 3, prevents the horizontal hunting, leads to the test result inaccurate.
As shown in fig. 3 and 4, the elastic component includes a fixing bolt 22 in threaded connection with the pressure plate, a screw of the fixing bolt 22 extends to one side of the floating current bar 2 after penetrating through the pressure plate, a through hole with a diameter corresponding to the screw is arranged at the center of the floating current bar 2, a floating spring 21 is sleeved outside the screw, one end of the floating spring 21 is fixedly connected with the pressure plate, and the other end of the floating spring is fixedly connected with the floating current bar 2.
The floating spring 21 is a main component of the floating current bar 2, and is installed between the floating current bar 2 and the upper and lower pressing plates 1, and the pretightening force of the floating spring 21 can ensure that the floating current bar 2 and the primary current bar 32 of the sensor are in floating fit at any position in a working interval.
Fixing bolt 22 is hexagon socket head cap counter bore bolt, and the one side that floating current row 2 was kept away from to the clamp plate is equipped with the counter bore that corresponds with fixing bolt 22's nut, makes the surface of clamp plate more level and more smooth, is convenient for place.
During testing, the hall current sensors 3 to be tested are placed between the adjacent floating current bars 2 on the lower pressing plate 1, as shown in fig. 5, 16 hall current sensors 3 can be measured simultaneously, then the upper pressing plate 6 is pressed from the upper side, the floating current bars 2 can conduct the 32 pins of the primary current bars of the two sensors, the specific conduction mode is that the primary current bar 32 IP-of the sensor a is conducted with the primary current bar 32IP + of the sensor B through the floating current bar 2, and so on, finally the floating current bar 2 conducts the primary sides of the 16 sensors, and the wiring terminal is connected with the current of 200A for testing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the utility model, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a hall current sensor is testing arrangement in batches which characterized in that: the Hall current sensor to be detected is placed between the two pressing plates, a plurality of floating current bars are arranged on the upper surface of the lower pressing plate, each floating current bar is installed on the lower pressing plate through an independent elastic assembly, a gap for placing the Hall current sensor is reserved between adjacent floating current bars, and two primary side current bars of the Hall current sensor are placed, wherein one of the two primary side current bars is placed on the floating current bar on one side, and the other one is placed on the floating current bar on the other side;
the upper pressing plate is placed above the Hall current sensor and used for pressing the Hall current sensor downwards;
the floating current bar is a conductor, and the two floating current bars at the head end and the tail end are connected with a wiring terminal.
2. The hall current sensor batch test apparatus of claim 1, wherein: the floating current rows are arranged in two rows, and the two rows of floating current rows are connected through flexible wires.
3. The hall current sensor batch test apparatus of claim 1, wherein: the wiring terminal is fixedly connected to the pressing plate, and the wiring terminal is connected with the floating current bar through a flexible wire.
4. The hall current sensor batch test apparatus of claim 1, wherein: the width between adjacent floating current bars corresponds to the width of the casting of the hall current sensor.
5. The hall current sensor batch test apparatus of claim 1, wherein: the elastic component comprises a fixing bolt in threaded connection with the pressing plate, a screw rod of the fixing bolt penetrates through the pressing plate and extends to one side with a floating current bar, a through hole with a diameter corresponding to the screw rod is formed in the center of the floating current bar, a floating spring is sleeved on the outer side of the screw rod, one end of the floating spring is fixedly connected with the pressing plate, and the other end of the floating spring is fixedly connected with the floating current bar.
6. The Hall current sensor batch testing device of claim 5, wherein: the fixing bolt is an inner hexagonal counter bore bolt, and a counter bore corresponding to a nut of the fixing bolt is arranged on one side, away from the floating current bar, of the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122930404.9U CN216559122U (en) | 2021-11-26 | 2021-11-26 | Hall current sensor is testing arrangement in batches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122930404.9U CN216559122U (en) | 2021-11-26 | 2021-11-26 | Hall current sensor is testing arrangement in batches |
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| Publication Number | Publication Date |
|---|---|
| CN216559122U true CN216559122U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122930404.9U Active CN216559122U (en) | 2021-11-26 | 2021-11-26 | Hall current sensor is testing arrangement in batches |
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| CN (1) | CN216559122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117368808A (en) * | 2023-10-10 | 2024-01-09 | 上海深启半导体科技有限公司 | Hall sensor calibration device and method and storage medium |
-
2021
- 2021-11-26 CN CN202122930404.9U patent/CN216559122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117368808A (en) * | 2023-10-10 | 2024-01-09 | 上海深启半导体科技有限公司 | Hall sensor calibration device and method and storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A batch testing device for Hall current sensor Effective date of registration: 20220627 Granted publication date: 20220517 Pledgee: Tianjin Zhongguancun Science and Technology Financing Guarantee Co.,Ltd. Pledgor: Tianjin Xinsen Electronic Technology Co.,Ltd. Registration number: Y2022120000030 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230906 Granted publication date: 20220517 Pledgee: Tianjin Zhongguancun Science and Technology Financing Guarantee Co.,Ltd. Pledgor: Tianjin Xinsen Electronic Technology Co.,Ltd. Registration number: Y2022120000030 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231218 Address after: Room 401-026, 4th Floor, Zhengling High tech Park (Core Space), No. 2 Cuizhu Second Street, Xiangzhou District, Zhuhai City, Guangdong Province, 519070 Patentee after: Zhuhai Xinsen Electronic Technology Co.,Ltd. Address before: 300000 Floor 9, building 1, Zhongguancun Science and Technology City collaborative development center, intersection of Xihuan North Road and Tangtong highway, Baodi District, Tianjin Patentee before: Tianjin Xinsen Electronic Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |