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CN-224216821-U - External amplification testing device

CN224216821UCN 224216821 UCN224216821 UCN 224216821UCN-224216821-U

Abstract

The application discloses an external amplification testing device, which belongs to the technical field of detection of automobile power distribution circuit boards and comprises a substrate, a detection terminal and a fixing piece, wherein the detection terminal is connected with the substrate, the substrate is used for bearing a piece to be detected, the detection terminal is used for being connected with the piece to be detected so as to electrically connect a circuit to be detected in the circuit board with the detection terminal, the fixing piece is connected with the substrate and comprises a fixing plate, a fixing hole is formed in the fixing plate, an opening of the fixing hole faces one side, far away from the substrate, of a fixing table, and the detection terminal penetrates through the fixing hole so as to fix the detection terminal on the substrate through the fixing piece. According to the application, the external detection terminal of the circuit board is used for replacing the contact between the to-be-detected point and the detection probe, so that the technical problems of detection reliability reduction and circuit board and electronic devices damage caused by the fact that the detection probe falls outside the to-be-detected area due to the fact that the area of the to-be-detected point is small are solved.

Inventors

  • DU YIMING
  • Yong Zhengyu
  • DONG LU
  • ZHENG PENG

Assignees

  • 江苏由甲申田新能源科技有限公司

Dates

Publication Date
20260508
Application Date
20250415

Claims (10)

  1. 1. An external amplification test device, comprising: A substrate (10), wherein the substrate (10) is used for loading a piece to be tested, the substrate (10) is provided with a first direction (X), a second direction (Y) and a third direction (Z) which are arranged in an intersecting manner, and the substrate (10) is arranged in an extending manner along a plane formed by the first direction (X) and the second direction (Y); A detection terminal (20), wherein the detection terminal (20) is used for being electrically connected with the piece to be detected; The fixing device comprises a fixing piece (30), wherein the fixing piece (30) is connected with a base plate (10), the fixing piece (30) comprises a fixing plate (31), the fixing plate (31) is provided with a fixing hole (311) arranged along the third direction (Z), and an opening of the fixing hole (311) faces to one side of the fixing plate (31) away from the base plate (10); The detection terminal (20) is connected with the fixed plate (31) and at least partially penetrates through the fixed hole (311).
  2. 2. The external amplification test apparatus according to claim 1, wherein the detection terminal (20) includes: A detection part (21), wherein the detection part (21) at least partially penetrates through the fixing hole (311); A wire connection part (22), wherein the wire connection part (22) is connected with the detection part (21), the wire connection part (22) is partially arranged in the fixed hole (311), and the wire connection part (22) is arranged at one side of the detection part (21) close to the substrate (10) along the third direction (Z) and penetrates out from one side of the fixed hole (311) close to the substrate (10); A locking portion (23), wherein the locking portion (23) is connected with the wiring portion (22) and is arranged on one side of the fixing plate (31) close to the substrate (10) along the third direction (Z); The fixing plate (31) further comprises a first limiting part (312), the first limiting part (312) is arranged on the inner wall of the fixing hole (311) and is arranged on one side, close to the substrate (10), of the detection part (21), and the first limiting part (312) is at least partially overlapped with the orthographic projection of the detection part (21) along the third direction (Z).
  3. 3. The external amplification test apparatus as set forth in claim 2, wherein the fixing member (30) further comprises a supporting block (32), the supporting block (32) is connected to the fixing plate (31), and the supporting block (32) is disposed on a side of the fixing plate (31) close to the substrate (10) along the third direction (Z); The supporting block (32) and the fixing plate (31) are enclosed to form an abdication groove (33), the wiring part (22) penetrates into the abdication groove (33) from the fixing hole (311), and the locking part (23) is arranged in the abdication groove (33).
  4. 4. The external connection amplification test apparatus according to claim 1, wherein the substrate (10) further has a wire groove (11), an opening of the wire groove (11) is oriented toward a side of the substrate (10) near the fixing member (30) along the third direction (Z), and the fixing member (30) spans the opening of at least a portion of the track of the wire groove (11).
  5. 5. The external amplification test apparatus according to claim 4, the external amplification testing device is characterized by further comprising: The wiring terminal (40) is arranged on one side, close to the detection terminal (20), of the substrate (10) along the third direction (Z), the wiring terminal (40) and the fixing piece (30) are arranged at intervals along the track direction of the wire groove (11), and the wiring terminal (40) is straddled in an opening of at least part track of the wire groove (11); The wire pressing device comprises a substrate (10), a wire groove (11), a wire pressing member (41), a wire connecting terminal (40) and a wire pressing member (41), wherein the wire pressing member (41) is arranged on one side, close to the detection terminal (20), of the substrate (10) along the third direction (Z), the wire connecting terminal (40) and the fixing member (30) are arranged at intervals along the track direction of the wire groove (11), the wire pressing member (41) spans an opening of at least part of the track of the wire groove (11), and the wire pressing member (41) is connected with the wire connecting terminal (40) and is connected with the substrate (10).
  6. 6. The external connection amplification test apparatus according to claim 1, wherein the substrate (10) has a first carrying groove (12) extending along the third direction (Z), an opening of the first carrying groove (12) faces a side of the substrate (10) close to the detection terminal (20), and the first carrying groove (12) is used for placing a workpiece to be tested.
  7. 7. The external amplification test apparatus as set forth in claim 6, further comprising a cover plate (60), the cover plate (60) being connected to the base plate (10), the cover plate (60) being disposed on a side of the base plate (10) close to the detection terminal (20) along the third direction (Z) and covering an opening of a part of the first carrying groove (12); The cover plate (60) is provided with a first through hole (61), and the first through hole (61) is formed along the third direction (Z) and is communicated with the first bearing groove (12).
  8. 8. The external amplification test apparatus as set forth in claim 7, wherein a plurality of the first carrying grooves (12) are provided, the plurality of the first carrying grooves (12) are provided at intervals along the first direction (X), and a carrying table (13) is formed between two adjacent first carrying grooves (12); The cover plate (60) comprises a first crimping piece (62), and the orthographic projection of the first crimping piece (62) is at least partially overlapped with the bearing table (13) along the third direction (Z).
  9. 9. The externally-connected amplification test apparatus according to claim 8, wherein the cover plate (60) further comprises a second crimp member (63), the second crimp member (63) is connected to the first crimp member (62), and the second crimp member (63) is disposed on a side of the first crimp member (62) close to the first bearing groove (12) along the first direction (X).
  10. 10. The external magnification test device according to claim 7, further comprising a compression member (50), the compression member (50) comprising: The pressing block (51) is arranged on one side, close to the cover plate (60), of the substrate (10) along the third direction (Z), the pressing block (51) is provided with a connecting hole (511) which is arranged in a penetrating mode along the third direction (Z), the pressing block (51) comprises a second limiting part (512), and the second limiting part (512) is arranged on the inner wall of the connecting hole (511) and is arranged on one side, close to the substrate (10), of the connecting hole (511) along the third direction (Z); The connecting piece (52) comprises a connecting rod (521) and a third limiting part (522), wherein the connecting piece (52) penetrates through the connecting hole (511) and penetrates out of one side, close to the substrate (10), of the connecting hole (511) to be connected with the substrate (10), the third limiting part (522) penetrates through the connecting hole (511), is arranged on one side, far away from the substrate (10), of the connecting rod (521) along the third direction (Z), and the orthographic projection of the connecting rod (521) is covered by an orthographic circle of the third limiting part (522) along the third direction (Z); The elastic piece (53), elastic piece (53) cover is located connecting rod (521), along third direction (Z), the both ends of elastic piece (53) respectively with second spacing portion (512) with third spacing portion (522) are connected.

Description

External amplification testing device Technical Field The application belongs to the technical field of detection of automobile power distribution circuit boards, and particularly relates to an external amplification testing device. Background In a battery module of a vehicle, high-voltage power distribution devices such as BDUs (Battery Disconnect Unit, battery disconnect units), PDUs (Power Distribution Unit, power distribution units), BMUs (Battery Management Unit, battery management units) and the like are generally required to perform power distribution management on batteries. In the above-mentioned high-voltage power distribution equipment, breaking control is generally performed by electric control devices such as a circuit breaker, a relay, a contactor, a switching device, and an overload protector, and on-off of the electric control devices is controlled by a PCB board (Printed Circuit Board, a printed circuit board) and/or an FPC board (Flexible Printed Circuit, a flexible printed circuit board). The PCB and the FPC board need to be subjected to qualified circuit detection before shipment, but the PCB board and the FPC board are higher in integration, so that the contact area of a to-be-detected point is smaller, the drop point precision control requirement on the detection probe is higher, the problem that the detection probe falls outside a to-be-detected area easily occurs, the detection reliability is reduced, and meanwhile, if the probe falls in an area outside the to-be-detected point, the circuit board body, the circuit and the electronic element are easily damaged. Disclosure of utility model The utility model aims to develop an external amplification testing device, and aims to solve the technical problem that in the prior art, the area of a circuit board to be tested is smaller, and the detection reliability is reduced due to the fact that a detection probe falls outside the area to be tested. The application provides an external amplification testing device, which comprises: The device comprises a substrate, a first sensor and a second sensor, wherein the substrate is used for loading a piece to be tested and is provided with a first direction, a second direction and a third direction which are arranged in an intersecting mode, and the substrate extends along a plane formed by the first direction and the second direction; And the detection terminal is used for being electrically connected with the to-be-detected piece. The fixing piece is connected with the substrate; the fixing piece comprises a fixing plate, wherein the fixing plate is provided with a fixing hole arranged along the third direction, and the opening of the fixing hole faces to one side of the fixing plate away from the substrate; The detection terminal is connected with the fixing plate and at least partially penetrates through the fixing hole. In some embodiments, the detection terminal comprises: The detection part at least partially penetrates through the fixing hole; The wiring part is arranged on one side of the detection part close to the substrate along the third direction and penetrates out from one side of the fixing hole close to the substrate; The locking part is connected with the wiring part and is arranged on one side, close to the substrate, of the fixing plate along the third direction; The fixing plate further comprises a first limiting part, the first limiting part is arranged on the inner wall of the fixing hole and is arranged on one side, close to the substrate, of the detection part, and the orthographic projection of the first limiting part and the orthographic projection of the detection part are at least partially overlapped along the third direction. In some embodiments, the fixing member further includes a supporting block connected to the fixing plate, and the supporting block is disposed on a side of the fixing plate near the substrate along the third direction; The supporting block and the fixing plate are enclosed to form an abdication groove, the wiring part penetrates into the abdication groove from the fixing hole, and the locking part is arranged in the abdication groove. In some embodiments, the substrate further has a wire slot, and the opening of the wire slot faces to one side of the substrate near the fixing member along the third direction, and the fixing member spans the opening of at least part of the track of the wire slot. In some embodiments, the external amplification test apparatus further comprises: The wiring terminal is arranged on one side of the substrate close to the detection terminal along the third direction, is arranged at intervals with the fixing piece along the track direction of the wire groove, and is straddled over the opening of at least part track of the wire groove; The wire groove is formed in the substrate, the wire groove is arranged on one side of the substrate, close to the detection terminal, along the third direction, the wire terminal is arrange