CN216792353U

CN216792353U - Resistance multi-cycle test tool

Info

Publication number: CN216792353U
Application number: CN202123360645.0U
Authority: CN
Inventors: 李岩; 谢小荣; 徐玲玲
Original assignee: Rudong Baolian Electronic Technology Co ltd
Current assignee: Rudong Baolian Electronic Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-21
Anticipated expiration: 2031-12-28

Abstract

The application relates to a resistor multi-cycle test tool, relates to the technical field of resistor tests, and aims to solve the problem that the working efficiency of a piezoresistor test is low because an operator manually tests each resistor to be tested; the surge generator is electrically connected with the circulating distributor, and the current transformer is electrically connected with the oscilloscope; one end of the positive and negative connection wires, which is far away from the circulating distributor, is connected with an installation assembly, the installation assembly comprises an installation seat and a gland, a plurality of elastic sheets are connected onto the installation seat, and the elastic sheets are averagely divided into two rows and arranged on two sides of the top wall of the installation seat in the width direction; the top wall of the gland is provided with a mounting opening in a penetrating way, the inner side wall of the gland is provided with two pressing strips, and the two pressing strips are respectively positioned above one row of support sheets; a limiting part is arranged between the mounting seat and the gland. This application has the effect that improves the work efficiency of piezo-resistor test.

Description

Resistance multi-cycle test tool

Technical Field

The application relates to the technical field of resistance testing, in particular to a repeated resistance cycle testing tool.

Background

The voltage dependent resistor is a resistor device with nonlinear volt-ampere characteristics, and is mainly used for voltage clamping when a circuit bears overvoltage, and absorbing redundant current to protect a sensitive device.

In the related technology, after the volume production of the piezoresistors is completed, a part of samples are taken from the volume of piezoresistors to carry out surge test, and the maximum voltage which can be borne by the piezoresistors is tested to judge whether the piezoresistors are qualified or not; when the piezoresistor is tested, a surge generator is utilized, a positive pole wire and a negative pole wire of the surge generator penetrate through a current transformer, and one side of the current transformer is electrically connected with an oscilloscope; during testing, an operator holds the positive and negative electrode connecting wires to be in contact with the positive and negative electrodes of the piezoresistor to be tested to form a loop, then adjusts the surge generator to further increase the voltage until the current measured by the current transformer is suddenly displayed on the oscilloscope, and the maximum voltage which can be borne by the piezoresistor to be tested can be obtained.

In view of the above-mentioned related technologies, the inventor believes that when testing the piezoresistor, an operator needs to hold the positive and negative connection wires of the surge generator to sequentially contact each piezoresistor to be tested, and when the piezoresistor to be tested has a large number of samples, the working efficiency of the piezoresistor test is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the work efficiency of piezo-resistor test, this application provides a resistance multiple cycle test frock.

The application provides a resistance multiple cycle test frock adopts following technical scheme:

a resistance multi-cycle test tool comprises a surge generator, a cycle distributor, a current transformer and an oscilloscope; the surge generator is electrically connected with the circulating distributor, the circulating distributor is connected with a plurality of positive and negative connecting wires, the positive and negative connecting wires penetrate through the current transformer, and the current transformer is electrically connected with the oscilloscope; one end of the positive and negative connection wire, which is far away from the circulating distributor, is connected with a mounting assembly, the mounting assembly comprises a mounting seat and a gland, the mounting seat is connected with a plurality of elastic sheets, the elastic sheets are averagely divided into two rows and arranged on two sides of the width direction of the top wall of the mounting seat, and one of the elastic sheets in one row and one of the elastic sheets in the other row, which corresponds to the other row, form a pair; the elastic piece comprises an integrally formed mounting piece, a connecting rod, clamping pieces and supporting pieces, the mounting piece is connected with the mounting seat, a welding rod penetrating through the mounting seat is arranged on the mounting piece, the clamping pieces and the supporting pieces are connected above the mounting piece through the connecting rod, one row of the clamping pieces are positioned on one side, close to the other row of the connecting rods, of the corresponding row of the connecting rods, and one row of the supporting pieces are positioned on one side, far away from the other row of the connecting rods, of the corresponding row of the connecting rods; the top wall of the gland is provided with a mounting opening in a penetrating manner, the inner side wall of the gland is provided with two pressing strips, and the two pressing strips are respectively positioned above one row of supporting sheets; and a limiting part is arranged between the mounting seat and the gland.

By adopting the technical scheme, the gland cover is arranged above the mounting seat and presses the gland downwards, the two pressing strips are respectively pressed on one row of the supporting sheets, the two pressing strips press down to drive the supporting sheets to move along with the pressing of the gland, so that the connecting rod is driven to bend, the two rows of the supporting sheets move towards the direction away from each other, and the two rows of the clamping sheets move towards the direction away from each other, so that the abdicating of the resistor mounting is realized; at the moment, the six resistors to be tested penetrate through the mounting opening and are respectively moved between one pair of clamping pieces, then the pressure on the pressing cover is removed, the elastic force of the connecting rod drives the clamping pieces and the supporting piece to reset, meanwhile, each pair of clamping pieces clamps the corresponding resistor to be tested, and the limiting pieces limit the relative positions of the pressing cover and the base; and then, connecting six pairs of leads on the welding rod with positive and negative connecting wires corresponding to the circulating distributor according to the positive and negative electrodes, starting the surge generator, and sequentially and circularly outputting the voltage output by the surge generator from the six pairs of positive and negative connecting wires by the circulating distributor, thereby realizing the circulating test of the six resistors to be tested. The setting of installation component can test a plurality of resistance under surge generator's primary voltage output, has reduced operating personnel and has tested the condition that every resistance to be tested carries out the test in proper order, has improved the work efficiency of piezo-resistor test.

Preferably, the pair of elastic pieces comprises an even number of two or more than two and are symmetrically arranged on two sides of the top wall of the mounting seat.

By adopting the technical scheme, when the point measuring resistor is clamped, two or more clamping pieces are added at each end of the resistor, so that the stress point clamped at one end of the resistor is increased, and the clamping stable layer of the resistor is improved.

Preferably, the mounting seat is provided with a support table, and the support table is located between the two rows of elastic sheets.

Through adopting above-mentioned technical scheme, after the resistance that awaits measuring inserts the installing port, stop the removal immediately with the contact of brace table, it is spacing that the resistance that awaits measuring can be treated to the brace table, reduces the circumstances that the resistance that awaits measuring removed and crosses the clamping piece.

Preferably, the limiting part comprises a limiting rod and a limiting buckle, the limiting rod is located on the mounting seat, the limiting buckle is located at the limiting rod and far away from one end of the mounting seat, a limiting table is arranged on the outer side wall of the gland, and the limiting buckle is buckled on the limiting table.

By adopting the technical scheme, when the gland is pressed down, the limiting rod and the limiting buckle move in opposite directions with the limiting table, when the limiting buckle moves to be in contact with the side wall of the limiting table, the limiting buckle is manually stirred to move in the direction away from the gland to realize abdication of the limiting table, and meanwhile, the limiting rod is elastically deformed; when the limiting buckle moves to cross the position of the limiting platform, the tension of the limiting buckle is removed, so that the elastic force of the limiting rod for restoring drives the limiting buckle to reset, and the limiting buckle is arranged on one side of the limiting platform, so that the relative position of the gland and the base is limited.

Preferably, the outer side wall of the gland is provided with a sliding groove for inserting the limiting rod, and the limiting table is positioned on the bottom wall of the sliding groove.

Through adopting above-mentioned technical scheme, the spout inside wall can lead the relative movement of gag lever post, stability when improving gag lever post and spacing platform relative movement.

Preferably, the top wall of the limit buckle is provided with a slope wall, and the slope wall can abut against the side wall of the limit table.

Through adopting above-mentioned technical scheme, when spacing knot removed the inclined plane wall and contacts with spacing platform lateral wall, spacing platform promoted spacing knot to keeping away from the gland direction and removing in order to realize stepping down to spacing platform under the guide effect of inclined plane wall, reduced the condition that operating personnel manually stirred spacing knot, improved the convenience of operation.

Preferably, the two rows of the supporting pieces are provided with pressing grooves for inserting the corresponding pressing strips.

Through adopting above-mentioned technical scheme, when the backing sheet was pushed down to the layering, can insert the indent, the layering further pushes down the indent inside wall and realizes pushing down to the backing sheet, and the indent inside wall can be spacing to the layering, when reducing the layering and pushing down the backing sheet, and the condition that takes place relative slip between the backing sheet.

Preferably, the inner side wall of the gland is provided with a plurality of limiting grooves, and a plurality of clamping pieces and supporting pieces on the same connecting rod are respectively inserted into one limiting groove and are in clearance fit with the inner side wall of each limiting groove; two the layering runs through one of them one row of spacing inslot lateral wall respectively.

Through adopting above-mentioned technical scheme, spacing inslot lateral wall can be spacing to clamping piece and backing sheet, and when reducing layering drive clamping piece and backing sheet and remove, the connecting rod takes place radial unbalance, leads to the condition that clamping piece and backing sheet take place the dislocation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the setting of installation component can test a plurality of resistance under surge generator's primary voltage output, has reduced operating personnel and has tested the condition that every resistance to be tested carries out the test in proper order, has improved the work efficiency of piezo-resistor test.

2. The supporting table can limit the resistor to be tested, and the situation that the resistor to be tested moves across the clamping piece when the resistor to be tested is installed is reduced.

3. The inner side wall of the pressing groove can limit the pressing strip, so that the situation that the pressing strip slides relative to the supporting sheet when pressing the supporting sheet is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a resistance multi-cycle test fixture in an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram for showing a positional relationship between a limiting groove and a bead in the embodiment of the present application.

Description of reference numerals: 1. a mounting seat; 11. a support table; 2. a gland; 21. layering; 22. a chute; 23. a limiting table; 24. a limiting groove; 25. an installation port; 3. an elastic sheet; 31. mounting a sheet; 311. welding a rod; 32. a connecting rod; 33. a support sheet; 331. pressing a groove; 34. a clip; 4. a limiting member; 41. a limiting rod; 42. a limit buckle; 421. a sloped wall; 5. a surge generator; 6. a circulating distributor; 7. a current transformer; 8. an oscilloscope.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses resistance multi-cycle test tool. Referring to fig. 1, the resistance multi-cycle test tool comprises a surge generator 5, a cycle distributor 6, a current transformer 7, an oscilloscope 8 and a mounting assembly, wherein the surge generator 5 is electrically connected with the cycle distributor 6 according to positive and negative electrodes, the cycle distributor 6 is provided with a plurality of pairs of positive and negative connecting wires, and the cycle distributor 6 can sequentially output the voltage output by the surge generator 5 from the plurality of pairs of positive and negative connecting wires; the current transformer 7 is arranged on one side of the circulating distributor 6, the current transformer 7 is electrically connected with the oscilloscope 8, and positive and negative connecting wires of the circulating distributor 6 penetrate through the current transformer 7.

Referring to fig. 1 and 2, one end of the positive and negative connection wires, which is far away from the circulating distributor 6, is connected with a mounting assembly, the mounting assembly comprises a mounting seat 1 and a gland 2, and a plurality of elastic sheets 3 are embedded in the top wall of the mounting seat 1; the elastic pieces 3 are equally divided into two rows and arranged on two sides of the top wall of the mounting seat 1 in the width direction, two elastic pieces 3 in one row of elastic pieces 3 form a pair with two elastic pieces 3 in the other row of elastic pieces 3 corresponding to the positions, and six pairs of elastic pieces 3 are shared in the embodiment.

Referring to fig. 2, the elastic sheet 3 includes an integrally formed mounting sheet 31, a connecting rod 32, a clamping sheet 34 and a supporting sheet 33, the mounting sheet 31 is connected to the mounting base 1, the connecting rod 32 is connected to the mounting sheet 31, the clamping sheet 34 and the supporting sheet 33 are connected to one end of the connecting rod 32 far away from the mounting sheet 31, one row of clamping sheets 34 is located at one side of the corresponding row of connecting rods 32 close to the other row of connecting rods 32, and one row of supporting sheets 33 is located at one side of the corresponding row of connecting rods 32 far away from the other row of connecting rods 32; the support sheet 33 is provided with a pressing groove 331; the lower end of the mounting plate 31 is integrally formed with a welding rod 311, the welding rod 311 passes through the mounting base 1 and extends out from the bottom wall of the mounting base 1, and a conducting wire can be connected to the pair of welding rods 311.

Referring to fig. 1, 2 and 3, the top wall of the gland 2 is provided with a mounting opening 25 in a penetrating manner, the inner side wall of the gland 2 is provided with two pressing strips 21, and the two pressing strips 21 are respectively positioned above one row of supporting sheets 33; a limiting piece 4 is arranged between the mounting seat 1 and the gland 2; when the device is used, the gland 2 is covered above the mounting seat 1, the gland 2 is pressed downwards, the two pressing strips 21 are respectively inserted into one row of pressing grooves 331, the inner side walls of the pressing grooves 331 are pressed downwards by the two pressing strips 21 along with the pressing of the gland 2 to drive the supporting sheets 33 to move, so that the connecting rod 32 is driven to bend, the two rows of supporting sheets 33 move towards the direction away from each other, and meanwhile, the two rows of clamping sheets 34 move towards the direction away from each other to realize abdication of resistor mounting; at the moment, six resistors to be tested penetrate through the mounting port 25 and are respectively moved to a position between one pair of clamping pieces 34, then the pressure on the gland 2 is removed, the clamping pieces 34 and the supporting piece 33 are driven to reset by the elastic force of the connecting rod 32, meanwhile, each pair of clamping pieces 34 clamps the corresponding resistor to be tested, and the limiting piece 4 limits the relative position of the gland 2 and the base; and then, the six pairs of leads on the welding rod 311 are connected with the positive and negative connecting wires corresponding to the circulating distributor 6 according to the positive and negative poles, the surge generator 5 is started, and the circulating distributor 6 sequentially and circularly outputs the voltage output by the surge generator 5 from the six pairs of positive and negative connecting wires, so that the six resistors to be tested are circularly tested.

Referring to fig. 2, a supporting table 11 is arranged on the mounting base 1, the supporting table 11 is located between the two rows of elastic pieces 3, and after the resistor to be tested is inserted into the mounting opening 25, the supporting table 11 can limit the resistor to be tested, so that the situation that the resistor to be tested moves over the clamping pieces 34 is reduced.

Referring to fig. 2, the limiting member 4 includes a limiting rod 41 and a limiting buckle 42, the limiting rod 41 is integrally formed at two ends of the bottom wall of the mounting base 1, and the limiting buckle 42 is integrally formed at one end of the limiting rod 41 far from the mounting base 1; the spout 22 has been seted up to gland 2 lateral wall, and gag lever post 41 inserts in spout 22, and spout 22 diapire integrated into one piece has spacing platform 23, and spacing knot 42 roof is provided with the inclined plane wall 421. When the gland 2 is pressed down, the limiting rod 41 and the limiting buckle 42 slide in the chute 22, when the limiting buckle 42 moves until the inclined wall 421 contacts with the side wall of the limiting table 23, the limiting table 23 pushes the limiting buckle 42 to move in the direction away from the gland 2 under the guiding action of the inclined wall 421 so as to realize abdication of the limiting table 23, and meanwhile, the limiting rod 41 generates elastic deformation; when the limit buckle 42 moves across the position of the limit table 23, the elastic force restored by the limit rod 41 drives the limit buckle 42 to reset, so that the limit buckle 42 is buckled on one side of the limit table 23 to limit the relative position of the gland 2 and the base.

Referring to fig. 2 and 3, the inner side wall of the gland 2 is provided with a plurality of limiting grooves 24, a plurality of clamping pieces 34 and supporting pieces 33 on the same connecting rod 32 are respectively inserted into one of the limiting grooves 24 and are in clearance fit with the inner side wall of the limiting groove 24, and the two pressing strips 21 respectively penetrate through the inner side wall of one of the rows of limiting grooves 24. The limiting groove 24 is limited by the inner side wall of the limiting groove 34 and the supporting sheet 33, so that the situation that the clamping sheet 34 and the supporting sheet 33 are dislocated due to radial unbalance of the connecting rod 32 when the clamping sheet 34 and the supporting sheet 33 are driven by the pressing strip 21 to move is reduced.

The implementation principle of the resistance multi-cycle test tool in the embodiment of the application is as follows:

the pressing cover 2 is covered above the mounting seat 1, the pressing cover 2 is pressed downwards, the two pressing strips 21 are respectively inserted into one row of pressing grooves 331, the inner side walls of the pressing grooves 331 are pressed downwards by the two pressing strips 21 along with the pressing of the pressing cover 2 to drive the supporting sheets 33 to move, so that the connecting rod 32 is driven to bend, the two rows of supporting sheets 33 move towards the direction away from each other, and meanwhile, the two rows of clamping sheets 34 move towards the direction away from each other to realize abdication of resistor mounting; at the moment, six resistors to be tested penetrate through the mounting port 25 and are respectively moved to a position between one pair of clamping pieces 34, then the pressure on the gland 2 is removed, the clamping pieces 34 and the supporting piece 33 are driven to reset by the elastic force of the connecting rod 32, meanwhile, each pair of clamping pieces 34 clamps the corresponding resistor to be tested, and the limiting piece 4 limits the relative position of the gland 2 and the base; and then, the six pairs of leads on the welding rod 311 are connected with the positive and negative connecting wires corresponding to the circulating distributor 6 according to the positive and negative poles, the surge generator 5 is started, and the circulating distributor 6 sequentially and circularly outputs the voltage output by the surge generator 5 from the six pairs of positive and negative connecting wires, so that the six resistors to be tested are circularly tested, and the working efficiency of the piezoresistor test is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A multi-cycle resistance testing tool comprises a surge generator (5), a cycle distributor (6), a current transformer (7) and an oscilloscope (8); the surge generator (5) is electrically connected with the circulating distributor (6), the circulating distributor (6) is connected with a plurality of positive and negative connecting wires, the positive and negative connecting wires penetrate through the current transformer (7), and the current transformer (7) is electrically connected with the oscilloscope (8); the method is characterized in that: one end, far away from the circulating distributor (6), of the positive and negative wiring is connected with a mounting assembly, the mounting assembly comprises a mounting seat (1) and a gland (2), the mounting seat (1) is connected with a plurality of elastic sheets (3), the elastic sheets (3) are averagely divided into two rows and arranged on two sides of the width direction of the top wall of the mounting seat (1), and one elastic sheet (3) in one row of elastic sheets (3) and one elastic sheet (3) in the other row of elastic sheets (3) in a position corresponding to each other form a pair; the elastic sheet (3) comprises an integrally formed mounting sheet (31), a connecting rod (32), a clamping sheet (34) and a supporting sheet (33), the mounting sheet (31) is connected with the mounting seat (1), a welding rod (311) penetrating through the mounting seat (1) is arranged on the mounting sheet (31), the clamping sheet (34) and the supporting sheet (33) are connected above the mounting sheet (31) through the connecting rod (32), one row of the clamping sheet (34) is located on one side, close to the other row of the connecting rod (32), of the corresponding row of the connecting rod (32), and one row of the supporting sheet (33) is located on one side, far away from the other row of the connecting rod (32), of the corresponding row of the connecting rod (32); the top wall of the gland (2) is provided with a mounting port (25) in a penetrating manner, the inner side wall of the gland (2) is provided with two pressing strips (21), and the two pressing strips (21) are respectively positioned above one row of supporting sheets (33); a limiting part (4) is arranged between the mounting seat (1) and the gland (2).

2. The multi-cycle resistance testing tool according to claim 1, characterized in that: the pair of elastic pieces (3) comprises two or more even numbers and are symmetrically arranged on two sides of the top wall of the mounting seat (1).

3. The multi-cycle resistance testing tool according to claim 1, characterized in that: a supporting table (11) is arranged on the mounting seat (1), and the supporting table (11) is located between the two rows of elastic sheets (3).

4. The multi-cycle resistance testing tool according to claim 1, characterized in that: locating part (4) are including gag lever post (41) and spacing knot (42), gag lever post (41) are located mount pad (1), spacing knot (42) are located gag lever post (41) and keep away from mount pad (1) one end, gland (2) lateral wall is provided with spacing platform (23), spacing knot (42) are detained and are established on spacing platform (23).

5. The multi-cycle resistance testing tool according to claim 4, wherein: the outer side wall of the gland (2) is provided with a sliding groove (22) for inserting the limiting rod (41), and the limiting table (23) is located on the bottom wall of the sliding groove (22).

6. The multi-cycle resistance testing tool according to claim 5, wherein: the top wall of the limit buckle (42) is provided with a slope wall (421), and the slope wall (421) can be abutted against the side wall of the limit table (23).

7. The multi-cycle resistance testing tool according to claim 1, characterized in that: the two rows of support sheets (33) are provided with pressing grooves (331) for inserting corresponding pressing strips (21).

8. The multi-cycle resistance testing tool according to claim 1, characterized in that: a plurality of limiting grooves (24) are formed in the inner side wall of the gland (2), and a plurality of clamping pieces (34) and supporting pieces (33) on the same connecting rod (32) are respectively inserted into one of the limiting grooves (24) and are in clearance fit with the inner side wall of each limiting groove (24); the two pressing strips (21) respectively penetrate through the inner side wall of one row of limiting grooves (24).