CN219715522U - Battery clamp - Google Patents

Abstract

The utility model provides a battery clamp, which belongs to the technical field of battery testing, and comprises two clamping plates, wherein the surfaces of the two clamping plates, which are close to each other, are detachably connected; grooves are respectively formed in the surfaces, close to each other, of the two clamping plates, clamping spaces are formed in the two grooves and used for bearing the battery to be tested, so that the battery to be tested is pressurized to generate constraint, and in the process of carrying out repeated cyclic test on the battery to be tested, the phenomenon of gas expansion of the battery to be tested is avoided, and the performance of cyclic test of the battery to be tested is improved; the two partition plates are detachably arranged in the two grooves respectively, the surfaces of the two partition plates, which are close to each other, are respectively provided with the heat insulation layers, the battery clamp with the heat insulation function is used for carrying out the circulation test on the battery to be tested, when heat insulation is not needed, the two partition plates can be detached, and the clamp with the certain heat dissipation function is used for carrying out the circulation test on the battery to be tested, so that the battery clamp is very convenient.

Description

Battery clamp

Technical Field

The utility model belongs to the technical field of battery testing, and particularly relates to a battery clamp.

Background

With the development of lithium ion battery technology, the lithium ion battery needs to be subjected to cycle performance test and characterization analysis. Typical tests include cyclic tests of the battery at low, normal and high temperatures to verify the difference between the actual performance of the battery and the preset results, and sometimes also to perform a spot check on the purchased battery to determine whether the actual battery performance is consistent with the specifications.

However, at present, in the process of testing the cycle performance of the battery, the real working environment of the battery in the module cannot be simulated, and some batteries can also have the phenomenon of expanding gas and expanding, so that the internal structure of the battery is easy to deform, and the test of the battery cannot be completed.

Disclosure of Invention

The utility model aims to provide a battery clamp aiming at the defects of the prior art, so as to solve the problems that in the process of testing the cycle performance of a battery, the actual working environment of the battery in a module cannot be simulated, and some batteries can also have the phenomenon of expanding gas and expanding, so that the internal structure of the battery is easy to deform and the test of the battery cannot be completed.

In order to achieve the above object, the present utility model provides a battery clamp, which comprises two clamping plates, wherein the surfaces of the two clamping plates, which are close to each other, are detachably connected;

grooves are respectively formed on the surfaces, close to each other, of the two clamping plates, and clamping spaces are formed on the two grooves and used for bearing batteries to be tested;

the two partition boards are detachably arranged in the two grooves respectively, and the surfaces, close to each other, of the two partition boards are provided with heat insulation layers respectively.

Preferably, the clamping plate is a heat dissipation plate.

Preferably, at least one through hole is formed in at least one clamping plate, and the through hole is used for enabling a sensing wire of a temperature measuring piece attached to the battery to be measured to pass through.

Preferably, the through hole extends towards the direction of the clamping space, sequentially penetrates through the partition plate and the heat insulation layer, and is communicated with the clamping space.

Preferably, the grooves extend out of two ends of the clamping plate, two side walls of the grooves are respectively provided with a slideway, and two side edges of the partition plate are respectively connected in the two slideways in a sliding manner.

Preferably, one of the two clamping plates and the other surface close to each other are respectively provided with at least one threaded hole and at least one mounting hole, a plurality of threaded holes are respectively communicated with a plurality of mounting holes, and the communicated threaded holes are used for connecting threaded locking pieces in the mounting holes.

Preferably, the battery clamp further comprises at least one fixing pin, the fixing pin is embedded in the through hole, a wiring hole is formed in the fixing pin, the wiring hole is communicated with the clamping space, and the wiring hole is used for enabling the sensing wire to pass through.

Preferably, a limiting groove is formed in one surface, close to the battery to be measured, of the fixing pin, the limiting groove is communicated with the wiring hole, and the limiting groove is used for placing a temperature measuring piece.

Preferably, the battery clamp further comprises at least one limiting mechanism, the limiting mechanism comprising:

the bolt piece is in pressure connection with one surface of the fixing pin, which is far away from the battery to be tested, and one end of the bolt piece is connected with the clamping plate;

the inserting block is provided with a clamping groove on one surface, the clamping groove is pressed on the other end of the bolt piece, and the inserting block is connected with the clamping plate.

Preferably, the thickness of the insulating layer is at least 5mm.

The utility model provides a battery clamp, which has the beneficial effects that: grooves are respectively formed on the surfaces, close to each other, of the two clamping plates of the clamp, clamping spaces are formed on the two grooves and used for bearing the battery to be tested, so that the battery to be tested is pressurized to generate constraint, and in the process of carrying out repeated cyclic test on the battery to be tested, the phenomenon of gas expansion of the battery to be tested is avoided, and the performance of cyclic test of the battery to be tested is improved;

the two partition boards of the clamp are detachably arranged in the two grooves respectively, the surfaces of the two partition boards, which are close to each other, are respectively provided with the heat insulation layers, when heat insulation test is needed, the two partition boards can be installed in the two grooves, the battery clamp with the heat insulation function is used for carrying out circulation test on the battery to be tested, when heat insulation is not needed, the two partition boards can be detached, and the clamp with the certain heat dissipation function is used for carrying out circulation test on the battery to be tested, so that the clamp is very convenient.

The two clamping plates of the clamp are detachably connected, so that the clamp can be repeatedly utilized infinitely in the battery testing process, the testing cost is effectively reduced, the utilization rate of the clamp is improved, and the clamp has the characteristics of simplicity and flexibility in operation.

The clamping space of the clamp can simulate the real working environment of the battery in the module, ensure the accuracy of a test result and realize the test of the battery.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.

FIG. 1 shows a schematic exploded view of a battery clamp according to one embodiment of the utility model;

FIG. 2 shows an enlarged schematic view of the structure of FIG. 1 at A;

fig. 3 is a perspective view showing a clamping plate of a battery clamp according to an embodiment of the present utility model;

fig. 4 is a schematic perspective view showing a separator of a battery holder according to an embodiment of the present utility model;

fig. 5 is a perspective view showing a fixing pin of a battery clamp according to an embodiment of the present utility model;

fig. 6 is a perspective view showing a latch plate of a battery clamp according to an embodiment of the present utility model;

fig. 7 is a schematic perspective view showing an insert block of a battery clamp according to an embodiment of the present utility model;

reference numerals illustrate:

1. a clamping plate; 2. a groove; 3. a through hole; 4. a partition plate; 5. a slideway; 6. a threaded locking member; 7. a fixing pin; 8. a wiring hole; 9. a limit groove; 10. a latch plate; 11. inserting blocks; 12. a clamping groove.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below. While the preferred embodiments of the present utility model are described below, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

As shown in fig. 1 to 4, the present utility model provides a battery clamp comprising two clamping plates 1, the surfaces of the clamping plates 1 adjacent to each other being detachably connected;

grooves 2 are respectively formed on the surfaces, close to each other, of the two clamping plates 1, and clamping spaces are formed on the two grooves 2 and used for bearing batteries to be tested;

the two partition boards 4, the two partition boards 4 are detachably arranged in the two grooves 2 respectively, and the surfaces of the two partition boards 4 close to each other are provided with heat insulation layers respectively.

Specifically, in order to solve the problem that in the process of carrying out the cycle performance test on the battery, the real working environment of the battery in the module cannot be simulated, and the expansion phenomenon can occur to some batteries, so that the internal structure of the battery is easy to deform and the test on the battery cannot be completed, the utility model provides a battery clamp, the heat insulation layer of the clamp can be adhered to a baffle plate 4, grooves 2 are respectively arranged on the surfaces, close to each other, of two clamping plates of the clamp, of the clamp are respectively provided with a clamping space, the two grooves 2 are used for bearing the battery to be tested, so that the battery to be tested is pressurized to generate constraint, and in the process of carrying out the cycle test on the battery to be tested, the expansion phenomenon of the battery to be tested is avoided, and the performance of the cycle test of the battery is improved; the two partition boards 4 of the fixture are detachably arranged in the two grooves 2 respectively, the surfaces, close to each other, of the two partition boards 4 are respectively provided with the heat insulation layers, when heat insulation test is needed, the two partition boards 4 can be installed in the two grooves to serve as the fixture with the heat insulation function for carrying out circulation test on the battery, when heat insulation is not needed, the two partition boards 4 can be detached to serve as the fixture with a certain heat dissipation function for carrying out circulation test on the battery, and the fixture is quite convenient. The two clamping plates 1 of the clamp are detachably connected, so that the clamp can be repeatedly utilized infinitely in the battery testing process, the testing cost is effectively reduced, the utilization rate of the clamp is improved, and the clamp has the characteristics of simplicity and flexibility in operation.

Preferably, the clamping plate 1 is a heat dissipating plate.

Specifically, the heat dissipation splint can be stainless steel splint, aluminium splint, bakelite splint, hard plastics splint or have heat dissipation function's splint, when not needing to keep warm, can dismantle two baffles 4 and expect, through the heat dispersion of heat dissipation splint, carry out the circulation test as the anchor clamps that have certain heat dissipation function to the battery that awaits measuring, consequently, this anchor clamps can satisfy heat preservation and heat dissipation requirement, and is very convenient when using.

Preferably, at least one through hole 3 is arranged on at least one clamping plate 1, and the through hole 3 is used for enabling a sensing wire of a temperature measuring piece attached to a battery to be measured to pass through;

the through holes 3 extend towards the clamping space, sequentially penetrate through the partition plate 4 and the heat insulation layer, and are communicated with the clamping space.

Specifically, the temperature measuring piece can be adhered to the battery to be measured through the high-temperature adhesive tape, the number of through holes 3 on at least one clamping plate 1 is three, three through holes 3 are distributed on the clamping plate 1 at intervals, the shape of each through hole 3 can be a waist-shaped hole, when the battery to be measured is subjected to cycle performance test, the temperature measuring piece can be adhered to the battery to be measured, and a sensing wire of the temperature measuring piece can penetrate through the through holes 3 to be connected with peripheral control equipment.

Preferably, the groove 2 extends out of two ends of the clamping plate 1, two side walls of the groove 2 are respectively provided with a slide way 5, and two side walls of the partition plate 4 are respectively connected in the two slide ways 5 in a sliding way.

Specifically, two slides 5 of recess 2 are used for conveniently dismantling location baffle 3, play the guide effect to baffle 3, and when baffle 3 slides in recess 2, slide 5 can avoid baffle 3 to break away from recess 2.

Preferably, one of the two clamping plates 1 and the other surface thereof, which are close to each other, are respectively provided with at least one threaded hole and at least one mounting hole, the plurality of threaded holes are respectively communicated with the plurality of mounting holes, and the communicated threaded holes and the mounting holes are used for connecting the threaded locking member 6.

Specifically, four threaded holes can be respectively formed in the two sides of the groove 2 on the surface of one clamping plate 1, four mounting holes can be respectively formed in the two sides of the groove 2 on the surface of the other clamping plate 1, when the two clamping plates 1 are fixedly connected with each other, the threaded holes communicated with each other can be used for being connected with the threaded locking piece 6 in the mounting holes, the threaded locking piece 6 can be a bolt and a nut, and after the bolt is screwed into the threaded holes communicated with each other and the mounting holes, the nut is screwed on the bolt, so that the two clamping plates 1 are fixedly connected.

Preferably, the battery clamp further comprises at least one fixing pin 7, the fixing pin 7 is embedded in the through hole, a wiring hole 8 is formed in the fixing pin 7, the wiring hole 8 is communicated with the clamping space, and the wiring hole 8 is used for enabling the sensing wire to pass through.

Specifically, the shape of the fixing pin 7 is the same as that of the through hole, and the fixing pin 7 is in a waist shape, so that the phenomenon that the through hole 3 is too large to cause local stress of the battery to be tested and bulge occurs at the position of the through hole 3 can be avoided by the fixing pin 7.

Preferably, a limiting groove 9 is formed in one face, close to the battery to be measured, of the fixing pin 7, the limiting groove 9 is communicated with the wiring hole 8, and the limiting groove 9 is used for placing a temperature measuring piece.

Specifically, the temperature measuring piece is placed in the limiting groove 9, and the temperature measuring piece can be prevented from being crushed by the fixing pin 7.

As shown in fig. 2, 5 and 6, the battery clamp preferably further includes at least one limiting mechanism comprising:

the bolt piece 10 is pressed on one surface of the fixing pin 7 far away from the battery to be tested, and one end of the bolt piece 10 is connected to the clamping plate 1;

the insert 11, one side of insert 11 is equipped with draw-in groove 12, and draw-in groove 12 crimping is on the other end of bolt piece 10, and insert 11 connects splint 1.

Specifically, one end of the bolt sheet 10 is provided with a bolt sheet mounting hole, the position of the clamping plate 1 corresponding to the bolt sheet mounting hole is provided with a bolt sheet threaded hole, and when the bolt sheet 10 is pressed on one surface of the fixing pin 7 far away from the battery to be tested, the bolt sheet can pass through the bolt sheet mounting hole and be in threaded connection with the bolt sheet threaded hole so as to be used for limiting one end of the bolt sheet;

the insert 11 is provided with an insert mounting hole, the position of the clamping plate 1 corresponding to the insert mounting hole is provided with an insert threaded hole, and when the clamping groove 12 of the insert 11 is in pressure connection with the other end of the insert, the insert bolt passes through the insert mounting hole and is in threaded connection with the insert threaded hole so as to be used for limiting the other end of the insert, and the insert 4 is prevented from rotating in the using or carrying process.

Preferably, the thickness of the insulating layer is at least 5mm.

Specifically, the heat preservation layer is guaranteed to have certain heat preservation function.

In summary, when the battery clamp provided by the utility model needs to be subjected to heat preservation for carrying out cyclic test on the battery to be tested, a bolt passes through a threaded hole of one clamping plate 1, and one clamping plate 1 is placed on a plane; two edge walls of one of the partition boards 4 with heat insulation layers are inserted into two slide ways 5 of one of the clamping boards 1, and then one of the partition boards 4 is fixed in the groove 2 of one of the clamping boards 1 through flat head bolts, so that one of the partition boards 4 is prevented from moving; placing the battery to be tested on one of the partition boards 4 with the heat preservation layer, wherein the heat preservation layer is in contact with the battery to be tested; inserting two edge walls of the other partition board 4 with the heat insulation layer into two slide ways 5 of the other clamping board 1, and fixing the other partition board 4 in the groove 2 of the other clamping board 1 through flat head bolts to prevent the other partition board 4 from moving; the other clamping plate 1 is placed on the battery to be tested, the bolts penetrate through the mounting holes of the other clamping plate 1, and nuts are screwed on the bolts to realize connection and fixation of the two clamping plates 1; attaching a temperature measuring part to a battery to be measured through the through hole 3, embedding the fixing pin 7 into the through hole, and simultaneously enabling a sensing wire of the temperature measuring part to pass through the wiring hole 8 and be connected with external control equipment, and avoiding right angles of the sensing wire so as to avoid wire breakage; the bolt sheet 10 is pressed on one surface of the fixed pin 7 far away from the battery to be tested, passes through the bolt sheet mounting hole through the bolt sheet bolt and is in threaded connection with the bolt sheet threaded hole so as to be used for limiting one end of the bolt sheet 10, and the clamping groove 12 of the plug 11 is pressed on the other end of the bolt sheet 10, passes through the plug mounting hole through the plug bolt and is in threaded connection with the plug threaded hole so as to be used for limiting the other end of the bolt sheet 10, so that the bolt sheet 4 is prevented from rotating in the using or carrying process; and finally, placing the clamp in a constant temperature test oven, and connecting the battery to be tested with a test circuit to test the performance of the battery.

When the battery is required to be subjected to circulation test by heat dissipation, the two partition boards 4 are only required to be taken out from the grooves 2 of the two clamping boards 1 respectively, and then the clamp is assembled according to the content, and the heat dissipation effect is realized through the heat dissipation performance of the clamping boards 1, so that the clamp can meet the heat preservation and heat dissipation requirements and is very convenient to use.

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.

Claims (10)

1. The battery clamp is characterized by comprising two clamping plates, wherein the surfaces of the two clamping plates, which are close to each other, are detachably connected;

grooves are respectively formed on the surfaces, close to each other, of the two clamping plates, and clamping spaces are formed on the two grooves and used for bearing batteries to be tested;

the two partition boards are detachably arranged in the two grooves respectively, and the surfaces, close to each other, of the two partition boards are provided with heat insulation layers respectively.

2. The battery clamp of claim 1, wherein the clamping plate is a heat sink.

3. The battery clamp according to claim 1, wherein at least one clamping plate is provided with at least one through hole for passing a sensing wire of a temperature measuring member attached to the battery to be measured.

4. A battery holder according to claim 3, wherein the through hole extends in the direction of the holding space, penetrates the separator and the insulating layer in order, and communicates with the holding space.

5. The battery clamp according to claim 1, wherein the grooves extend out of two ends of the clamping plate, two side walls of the grooves are respectively provided with a slideway, and two side edges of the partition plate are respectively connected in the two slideways in a sliding manner.

6. A battery holder according to claim 1, wherein one of said clamping plates and the other of said clamping plates are provided with at least one threaded hole and at least one mounting hole, respectively, and a plurality of said threaded holes are in communication with a plurality of said mounting holes, respectively, and said threaded holes in communication with said mounting holes are for connection of threaded fasteners.

7. The battery clamp of claim 4, further comprising at least one anchor pin embedded in the through hole, the anchor pin having a routing hole in communication with the clamping space, the routing hole for passing the sensing wire.

8. The battery clamp according to claim 7, wherein a limiting groove is formed in one surface of the fixing pin, which is close to the battery to be tested, and is communicated with the wiring hole, and the limiting groove is used for placing a temperature measuring piece.

9. The battery clamp of claim 7, further comprising at least one limiting mechanism, the limiting mechanism comprising:

the bolt piece is in pressure connection with one surface of the fixing pin, which is far away from the battery to be tested, and one end of the bolt piece is connected with the clamping plate;

the inserting block is provided with a clamping groove on one surface, the clamping groove is pressed on the other end of the bolt piece, and the inserting block is connected with the clamping plate.

10. The battery clamp of claim 1, wherein the insulating layer has a thickness of at least 5mm.