CN216433334U

CN216433334U - Expansion force testing tool fixture

Info

Publication number: CN216433334U
Application number: CN202122894253.6U
Authority: CN
Inventors: 范虎斌
Original assignee: Jingmen Zhonggong Machinery Co ltd
Current assignee: Jingmen Zhonggong Machinery Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-03
Anticipated expiration: 2031-11-22

Abstract

The utility model relates to an expansibility test fixture, including top fixed plate, bottom plate, install on the top fixed plate and bulldoze the subassembly, the top fixed plate with install many guide posts between the bottom plate, it includes clamp plate, pressure sensor to bulldoze the subassembly, the clamp plate is located the upside of bottom plate, the clamp plate with install locating component between the bottom plate. Through the quick location installation of the battery of being convenient for of installation location subassembly between clamp plate and bottom plate, bulldoze the subassembly through the installation on top fixed plate, drive deflector and pressure sensor through the rotation of lead screw and move in this direction, when pressure sensor remove the back of targetting in place, with the centre gripping about the battery, the bulging force of battery is monitored to the in-process accessible pressure sensor's of battery charge-discharge cycle pressure value afterwards. The expansion force testing tool fixture is simple in structure and convenient to operate.

Description

Expansion force testing tool fixture

Technical Field

The utility model belongs to the technical field of the lithium cell detects technique and specifically relates to an expansibility test fixture.

Background

At present, the application range of lithium batteries is wider and wider, the safety performance of the lithium batteries is more important, various indexes of the lithium batteries are usually detected in the production process of the lithium batteries, and the lithium batteries can be put on the market after meeting the safety standard. It is necessary for a lithium battery to be assembled into a module to measure the change in expansion force during its charge and discharge cycles. The expansion force test of the single storage battery needs to be carried out through a test tool, and the existing test tool is complex in structure and troublesome in operation process.

Therefore, an expansion force testing tool clamp is needed to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide an expansibility test fixture.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides an expansibility test fixture, includes top fixed plate, bottom plate, install on the top fixed plate and bulldoze the subassembly, the top fixed plate with install many guide posts between the bottom plate, it includes clamp plate, pressure sensor to bulldoze the subassembly, the clamp plate is located the upside of bottom plate, the clamp plate with install locating component between the bottom plate.

Preferably, the above mentioned expansion force testing tool fixture, wherein the pushing assembly further includes a screw rod, a screw rod sleeve is embedded in the top fixing plate, the screw rod penetrates through the inside of the screw rod sleeve, and the screw rod is adapted to push the pressure sensor to move downwards.

Preferably, in the above expansion force testing tool fixture, the guide plate is installed at the lower end of the screw rod, the pressure sensor is installed at the lower side of the guide plate, the pressure sensor is located at the upper side of the pressing plate, and the guide plate and the pressing plate are both in sliding connection with the guide column.

Preferably, the expansive force testing tool fixture comprises two skid heat insulation plates, wherein one skid heat insulation plate is fixed on the upper surface of the bottom plate, the other skid heat insulation plate is fixed on the lower surface of the pressing plate, and limiting blocks are arranged on two sides of the two skid heat insulation plates.

Preferably, in the expansive force testing tool clamp, the surfaces, far away from each other, of the two skid heat insulation plates are provided with a plurality of heat dissipation grooves which are arranged at equal intervals.

Preferably, in the expansive force testing tool fixture, threaded holes are formed in both sides of the skid heat insulation plate, through grooves are formed in the limiting block, the limiting block and the skid heat insulation plate are fixed through bolts, the bolts penetrate through the through grooves, and the through grooves are suitable for adjusting the positions of the limiting block.

Preferably, in the above expansion force testing tool fixture, a plurality of guide sleeves are embedded in the guide plate, the guide posts penetrate through the guide sleeves, and the guide sleeves are slidably connected with the guide posts.

The utility model has the advantages that: through the quick location installation of the battery of being convenient for of installation location subassembly between clamp plate and bottom plate, bulldoze the subassembly through the installation on top fixed plate, drive deflector and pressure sensor through the rotation of lead screw and move in this direction, when pressure sensor remove the back of targetting in place, with the centre gripping about the battery, the bulging force of battery is monitored to the in-process accessible pressure sensor's of battery charge-discharge cycle pressure value afterwards. The expansive force testing tool fixture is simple in structure and convenient to operate.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of a skid insulation board;

FIG. 3 is a top view of a stop block;

fig. 4 is a plan view of the guide plate.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a top fixing plate, 2 parts of a guide plate, 3 parts of a pressing plate, 4 parts of a bottom plate, 5 parts of a guide post, 6 parts of a guide sleeve, 7 parts of a screw rod, 8 parts of a pressure sensor, 9 parts of a skid heat insulation plate, 10 parts of a limiting block, 11 parts of a screw rod sleeve, 12 parts of a battery, 13 parts of a through groove, 14 parts of a heat dissipation groove, 15 parts of a through hole, 16 parts of a threaded hole.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the expansion force testing tool fixture is characterized in that: including top fixed plate 1, bottom plate 4, install on top fixed plate 1 and bulldoze the subassembly, install four guide posts 5 that are parallel to each other between top fixed plate 1 and the bottom plate 4, four guide posts 5 and bottom plate 4 mutually perpendicular. The pushing and pressing assembly comprises a pressing plate 3, a pressure sensor 8 and a screw rod 7, the pressing plate 3 is located on the upper side of the bottom plate 4, and a positioning assembly is installed between the pressing plate 3 and the bottom plate 4.

The screw rod sleeve 11 is embedded in the center of the inner part of the top fixing plate 1, and the screw rod 7 penetrates through the inner part of the screw rod sleeve 11. The lower end of the screw rod 7 is provided with the guide plate 2, and a thrust bearing is arranged between the screw rod 7 and the guide plate 2, so that the screw rod 7 and the guide plate are movably connected in the radial direction and fixedly connected in the axial direction. The pressure sensor 8 is installed on the lower side of the guide plate 2, specifically, a plurality of through holes 15 are arranged on the guide plate 2, and screws pass through the through holes 15 and are fixed with the upper side of the pressure sensor 8 through threaded connection. The pressure sensor 8 is positioned on the upper side of the pressing plate 3, a plurality of guide sleeves 6 are embedded in four corners of the inner portions of the guide plate 2 and the pressing plate 3, the guide columns 5 penetrate through the guide sleeves 6, and the guide sleeves 6 are in sliding connection with the guide columns 5, so that the guide plate 2 and the pressing plate 3 can be in sliding connection with the guide columns 5. The guide plate 2 is used for transmitting the pressure of the screw rod 7 to the pressure sensor 8, plays a role in guiding and keeps the guide plate 2 horizontal all the time. The cross section of the top of the screw rod 7 is a regular hexagon, so that the screw rod 7 can be conveniently clamped into the top of the screw rod 7 through a tool, and the screw rod 7 can be conveniently rotated.

The positioning component comprises two skid heat insulation plates 9, one skid heat insulation plate 9 is fixed on the upper surface of the bottom plate 4, and the other skid heat insulation plate 9 is fixed on the lower surface of the pressing plate 3. The two sides of two skid heat insulating boards 9 are all provided with stopper 10, and the both sides of skid heat insulating board 9 all are provided with screw hole 16, and rectangular shape through groove 13 has been seted up to the inside of stopper 10, passes through the bolt fastening between stopper 10 and the skid heat insulating board 9, and the bolt passes through the inside of leading to groove 13. When testing, put battery 12 on the skid heat insulating board 9 of downside to the card is between stopper 10, stopper 10 can be adjusted according to battery 12's size, guarantees to block battery 12 and does not take place to rock. During adjustment, the bolt is loosened, the limiting block 10 moves along the through groove 13, and after adjustment is finished, the bolt is locked. The one side of keeping away from each other of two lumber skid heat insulating boards 9 all is provided with many radiating grooves 14, and many radiating grooves 14 equidistance are arranged, are convenient for dispel the heat of lithium cell release fast in the test procedure.

During operation, the battery 12 is placed into the positioning assembly, the guide plate 2 and the pressure sensor 8 are pushed to be pressed downwards through the rotary screw 7, so that the lower surface of the pressure sensor 8 is attached to the pressing plate 3 until the pressure sensing value of the pressure sensor 8 is zero, then the battery 12 is subjected to charge and discharge circulation, and in the process, the expansion force of the battery 12 can be reflected through the pressure sensing value of the pressure sensor 8.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides an expansibility test fixture which characterized in that: including top fixed plate (1), bottom plate (4), install on top fixed plate (1) and bulldoze the subassembly, top fixed plate (1) with install many guide posts (5) between bottom plate (4), it includes clamp plate (3), pressure sensor (8) to bulldoze the subassembly, clamp plate (3) are located the upside of bottom plate (4), clamp plate (3) with install locating component between bottom plate (4).

2. The expansion force testing tool clamp of claim 1, wherein: the pushing assembly further comprises a screw rod (7), a screw rod sleeve (11) is embedded in the top fixing plate (1), the screw rod (7) penetrates through the inside of the screw rod sleeve (11), and the screw rod (7) is suitable for pushing the pressure sensor (8) to move downwards.

3. The expansion force testing tool clamp of claim 2, wherein: deflector (2) are installed to the lower extreme of lead screw (7), pressure sensor (8) are installed the downside of deflector (2), pressure sensor (8) are located the upside of clamp plate (3), deflector (2) with clamp plate (3) all with guide post (5) sliding connection.

4. The expansion force testing tool clamp of claim 1, wherein: the positioning assembly comprises two skid heat insulation plates (9), one skid heat insulation plate (9) is fixed on the upper surface of the bottom plate (4), the other skid heat insulation plate (9) is fixed on the lower surface of the pressing plate (3), and limiting blocks (10) are arranged on two sides of the two skid heat insulation plates (9).

5. The expansion force testing tool clamp of claim 4, wherein: the surfaces, far away from each other, of the two skid heat insulation plates (9) are provided with a plurality of heat dissipation grooves (14), and the heat dissipation grooves (14) are arranged at equal intervals.

6. The expansion force testing tool clamp of claim 4, wherein: both sides of the skid heat-insulating plate (9) are provided with threaded holes (16), through grooves (13) are formed in the limiting blocks (10), the limiting blocks (10) are fixed with the skid heat-insulating plate (9) through bolts, the bolts penetrate through the inside of the through grooves (13), and the through grooves (13) are suitable for adjusting the positions of the limiting blocks (10).

7. The expansion force testing tool clamp of claim 3, wherein: the guide plate (2) is embedded with a plurality of guide sleeves (6), the guide column (5) penetrates through the guide sleeves (6), and the guide sleeves (6) are connected with the guide column (5) in a sliding mode.