CN111122035A - Battery module expansion force detection device - Google Patents
Battery module expansion force detection device Download PDFInfo
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- CN111122035A CN111122035A CN201911296779.5A CN201911296779A CN111122035A CN 111122035 A CN111122035 A CN 111122035A CN 201911296779 A CN201911296779 A CN 201911296779A CN 111122035 A CN111122035 A CN 111122035A
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- workbench
- fixedly connected
- battery module
- detection part
- plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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Abstract
The invention discloses a battery module expansion force detection device which comprises a workbench and a detection part arranged at the upper end of the workbench, wherein the detection part comprises a fixed detection part fixedly connected with the workbench and a movable detection part slidably connected with the workbench, the workbench is provided with a power part for driving the movable detection part to reciprocate on the workbench, one side of a base close to the movable detection part is slidably connected with a first extrusion plate, and a sensor is fixedly connected between the first extrusion plate and the base; this application is through setting up fixed first stripper plate and gliding second stripper plate, at the in-process that uses, will wait to detect battery module place between two stripper plates can, but also can be through the initial position of adjusting two stripper plates, and then carry out the bulging force test to the not unidimensional battery of different grade type, therefore, improved general performance, compatibility, further improved the rate of utilization of equipment.
Description
Technical Field
The invention relates to the technical field of battery module detection, in particular to a battery module expansion force detection device.
Background
Lithium ion battery is in the charge-discharge working process, and the chemical reaction that inside electric core takes place can make the shell internal pressure increase, and then arouse that electric core shell takes place the inflation, and the battery module also correspondingly receives the inflation extrusion between inside electric core and warp, and this brings the potential safety hazard for battery module and battery pack. In order to provide theoretical basis and reference for aspects such as module structural design, resistance to compression material selection, battery package structural design, reduce the potential safety hazard that module inflation deformation brought, must carry out the charge-discharge experiment to the module, detect module expansibility data value.
The existing module expansion force detection equipment can only be used for testing a square lithium battery module, and can not be used for carrying out corresponding experimental tests on a newly-emerging soft package battery module in the market. Simultaneously, the pretightning force of module is all through rotatory the advancing (retreat) of workman manual operation lead screw and is exerted and adjust, and the size of power is difficult to control, and the process is wasted time and energy, and the maneuverability of equipment is relatively poor, and degree of automation is not high.
Disclosure of Invention
The present invention is directed to a device for detecting expansion force of a battery module, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a battery module expansion force detection device comprises a workbench and a detection part arranged at the upper end of the workbench, wherein the detection part comprises a fixed detection part fixedly connected with the workbench and a movable detection part slidably connected with the workbench, and the workbench is provided with a power part for driving the movable detection part to reciprocate on the workbench;
the fixed detection part comprises a base fixedly connected with the workbench, one side of the base close to the movable detection part is connected with a first extrusion plate in a sliding mode, and a sensor is fixedly connected between the first extrusion plate and the base;
the movement detection part comprises a second extrusion plate which is in sliding connection with the workbench, and the second extrusion plate is arranged corresponding to the first extrusion plate;
the power part comprises a power motor used for pushing the second extrusion plate to slide, and the power motor is fixedly connected with the workbench.
As a further scheme of the invention: the workbench comprises a workbench support and a workbench surface fixedly connected to the upper end of the workbench support, and the bottom end of the workbench support is fixedly connected with an adjustable ground foot.
As a further scheme of the invention: the upper end of the workbench is fixedly connected with a display instrument in signal connection with the sensor and a control button communicated with the power motor.
As a further scheme of the invention: the first extrusion plate is connected with the base in a sliding mode through at least one supporting shaft, and the supporting shaft is fixedly connected to one side, close to the first extrusion plate, of the base.
As a further scheme of the invention: the utility model discloses a base, including base, back shaft, first stripper plate, guide sleeve, first stripper plate, base, back shaft, first stripper plate, second stripper plate, base, one end fixedly connected with stopper, the back shaft is equipped with two and is located the coplanar, the guide sleeve has been cup jointed on the back shaft, first stripper plate fixed connection in on the guide sleeve, the back shaft is kept.
As a further scheme of the invention: the mobile detection part comprises a first guide rail fixedly connected with the workbench, a first sliding block is connected to the first guide rail in a sliding mode, and a second extrusion plate is fixedly connected to the upper end of the first sliding block.
As a further scheme of the invention: the second extrusion plate with fixedly connected with reinforcing plate between the first slider, the reinforcing plate is located the second extrusion plate is kept away from one side of first extrusion plate, the reinforcing plate is equipped with two.
As a further scheme of the invention: the power portion comprises a supporting seat, the power motor is fixedly connected to the supporting seat, a push plate is connected to one side, close to the second extrusion plate, of the supporting seat in a sliding mode, and the power motor is in power connection with the push plate.
As a further scheme of the invention: the push plate passes through the second guide rail with workstation upper end sliding connection, second guide rail fixed connection with the workstation upper end.
As a further scheme of the invention: the push plate is in power connection with the power motor through the spiral worm screw lifter, and an output shaft of the power motor is in power connection with an input shaft of the spiral worm screw lifter through a coupler.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the expansion force testing device, the fixed first extrusion plate and the sliding second extrusion plate are arranged, the battery module to be tested is placed between the two extrusion plates in the using process, and the expansion force testing can be performed on batteries of different types and sizes by adjusting the initial positions of the two extrusion plates, so that the universality and compatibility are improved, and the utilization rate of the device is further improved;
2. according to the battery module, the pressure sensor with the rectangular structure is placed at the rear end of the first extrusion plate, and in the using process, the expansion force of the battery module is transmitted to the first extrusion plate firstly and then transmitted to the pressure sensor through the first extrusion plate, so that the stress of the pressure sensor is more uniform, and the detection precision is improved;
3. this application passes through servo motor as drive power, drives the push pedal through servo motor, the stripper plate removes to apply initial pressure for the module that awaits measuring, initial pressure is controllable adjustable moreover, the uniformity of the experiment initial condition of assurance, after detecting the completion simultaneously, can unload the initial pressure of the bulging force of battery module and stripper plate through servo motor reversal, therefore the simple easy operation of whole experimentation.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic structural diagram of a worktable according to the embodiment;
FIG. 3 is a schematic view of the fixing end face structure of the present embodiment;
FIG. 4 is a schematic structural diagram of a moving end face of the present embodiment;
FIG. 5 is a schematic structural diagram of the power mechanism of the present embodiment;
in the figure: 1-a workbench, 11-a workbench bracket, 12-adjustable feet, 13-a workbench surface, 14-a display instrument and 15-a control button;
2-fixing a detection part, 21-a base, 22-a sensor, 23-a first extrusion plate, 24-a support shaft, 25-a guide sleeve and 26-a limiting block;
3-a movement detection part, 31-a first guide rail, 32-a first slide block, 33-a second extrusion plate and 34-a reinforcing plate;
4-power part, 41-support seat, 42-spiral turbine screw lifter, 43-power motor, 44-coupler, 45-second guide rail and 46-push plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, in an embodiment of the present invention, a device for detecting an expansion force of a battery module includes a worktable 1 and a detection portion disposed at an upper end of the worktable 1, the detection portion includes a fixed detection portion 2 fixedly connected to the worktable 1 and a movable detection portion 3 slidably connected to the worktable 1, and the worktable 1 is provided with a power portion 4 for driving the movable detection portion 3 to reciprocate on the worktable 1.
The workbench 1 comprises a workbench support 11 and a workbench surface 13 fixedly connected to the upper end of the workbench support 11, the workbench support 11 is of a square tube welding frame structure, the bottom end of the workbench support 11 is fixedly connected with an adjustable foot margin 12, so that the workbench surface 13 can be quickly leveled through the adjustable foot margin 12, and the upper end of the workbench 1 is fixedly connected with a display 14 in signal connection with a sensor 22 and a control button 15 communicated with a power motor 43.
The fixed detection part 2 comprises a base 21, the base 21 is of an L-shaped structure, one end of the base 21 is fixedly connected with the working table 13, the other end of the base 21 extends in the direction far away from the working table 13 to form a supporting plate, one side of the base 21 close to the movable detection part 3 is fixedly connected with two supporting shafts 24, the supporting shafts 24 are arranged in parallel with the working table 13, guide sleeves 25 are sleeved on the supporting shafts 24, the guide sleeves 25 can slide on the supporting shafts 24, first extrusion plates 23 are fixedly connected on the guide sleeves 25, therefore, the first extrusion plates 23 can slide in a reciprocating mode relative to the base 21 through the guide sleeves 25, a sensor 22 is installed between the first extrusion plates 23 and the base 21, the sensor 22 is fixedly connected with the base 21, the sensor 22 is a pressure sensor with a rectangular specification, the reliability of a pressure value can be increased, and in addition, the sensor 22, the real-time detection data of the sensor 22 can be displayed by the display 14.
The movement detection part 3 comprises two first guide rails 31 fixedly connected with the working table surface 13, a first sliding block 32 is connected onto the first guide rails 31 in a sliding manner, the first sliding block 32 slides on the first guide rails 31 in a direction close to or far away from the first extrusion plate 23, a second extrusion plate 33 is fixedly connected onto the first sliding block 32, the second extrusion plate 33 and the first sliding block 32 are connected in an enhanced manner through two reinforcing plates 34, the reinforcing plates 34 are located on one side, away from the first extrusion plate 23, of the second extrusion plate 33, and an avoidance groove begins to be formed in one side, close to the power part 4, of the first sliding block 32.
The power portion 4 includes a supporting seat 41 fixedly connected to the working platform 13, a power motor 43 is fixedly connected to the supporting seat 41, in this embodiment, the power motor 43 is a servo motor, a push plate 46 is slidably connected to one side of the supporting seat 41 close to the second extrusion plate 33, a lower end of the push plate 46 is slidably connected to the working platform 13 through a second guide rail 45, and the other end of the push plate 46 is power-connected to the power motor 43 through a spiral worm screw lifter 42, so as to drive the push plate 46 to reciprocate on the second guide rail 45 through the power motor 43, meanwhile, the second guide rail 45 is coaxially arranged with the avoiding groove on the first slider 32, and the width of the second guide rail 45 is smaller than that of the avoiding groove, so as to ensure that the push plate 46 can contact the second handle 33 and drive the second extrusion plate 33 to move towards the direction close to the first extrusion plate 23, in this embodiment, the control button 15 on the working platform 13 is communicated with the power motor 43, furthermore, the working state of the power motor can be controlled by the control button 15, such as on/off, rotating speed and steering, the spiral worm screw lifter 42 is of a trapezoidal screw rod structure, the input end of the spiral worm screw lifter 42 is in power connection with the output shaft of the power motor 43 through a coupler, and the output screw rod of the spiral worm screw lifter 42 is in threaded connection with the push plate 46.
When the device is used, the distance between the first extrusion plate 23 and the second extrusion plate 33 is adjusted according to the type of a battery to be tested and the size of the battery, the pretightening force of the sensor 22 is set, then the battery module 5 is placed between the first extrusion plate 23 and the second extrusion plate 33, the control button 15 starts the servo motor, the servo motor drives the push plate 46 to move towards the direction close to the battery module 5, firstly, the push plate 46 contacts the second extrusion plate 33 and pushes the second extrusion plate 33 to move towards the direction close to the first extrusion plate 23, then, the second extrusion plate 33 contacts the battery module 5 and begins to extrude the battery module 5, and due to the transmission effect of force, the pressure of the second extrusion plate 33 acting on the battery module 5 is transmitted to the first extrusion plate 23. And then extrude sensor 22 through first stripper plate 23 and show current pressure numerical value by sensor 22 in real time, then show in real time on display instrument 14, when reaching preset pressure, close motor 43, because spiral turbine lead screw riser 42 of trapezoidal lead screw structure has self-locking function, therefore after closing motor 43, the rigidity of second stripper plate 33, can carry out the bulging force to battery module 5 this moment and detect, passageway battery module and performance charge and discharge most, it can to detect the pressure value of passing through middle battery module 5 of charge and discharge and record through pressure sensor, it can to start motor 43 and reversal after the detection is accomplished, make push pedal 46 reset, reset second stripper plate 33 simultaneously and can carry out the detection of next time.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The device for detecting the expansion force of the battery module comprises a workbench (1) and a detection part arranged at the upper end of the workbench (1), and is characterized in that the detection part comprises a fixed detection part (2) fixedly connected with the workbench (1) and a movable detection part (3) in sliding connection with the workbench (1), and a power part (4) for driving the movable detection part (3) to reciprocate on the workbench (1) is arranged on the workbench (1);
the fixed detection part (2) comprises a base (21) fixedly connected with the workbench (1), one side of the base (21) close to the movable detection part (3) is connected with a first extrusion plate (23) in a sliding mode, and a sensor (22) is fixedly connected between the first extrusion plate (23) and the base (21);
the movement detection part (3) comprises a second extrusion plate (33) connected with the workbench (1) in a sliding manner, and the second extrusion plate (33) is arranged corresponding to the first extrusion plate (23);
the power part comprises a power motor (43) used for pushing the second extrusion plate (33) to slide, and the power motor (43) is fixedly connected with the workbench (1).
2. The battery module expansion force detection device according to claim 1, wherein the workbench (1) comprises a workbench bracket (11) and a workbench surface (13) fixedly connected to the upper end of the workbench bracket (11), and an adjustable anchor (12) is fixedly connected to the bottom end of the workbench bracket (11).
3. The battery module expansion force detection device according to claim 1, wherein a display (14) in signal connection with the sensor (22) and a control button (15) communicated with the power motor (43) are fixedly connected to the upper end of the workbench (1).
4. The battery module expansion force detection device according to claim 1, wherein the first pressing plate (23) is slidably connected with the base (21) through at least one support shaft (24), and the support shaft (24) is fixedly connected to one side of the base (21) close to the first pressing plate (23).
5. The battery module expansion force detection device according to claim 4, wherein two support shafts (24) are arranged and located in the same plane, a guide sleeve (25) is sleeved on each support shaft (24), the first pressing plate (23) is fixedly connected to the guide sleeve (25), and a limit block (26) is fixedly connected to one end, far away from the base (21), of each support shaft (24).
6. The battery module expansion force detection device according to claim 1, wherein the movement detection part (3) comprises a first guide rail (31) fixedly connected with the workbench (1), a first sliding block (32) is slidably connected on the first guide rail (31), and the second pressing plate (33) is fixedly connected to the upper end of the first sliding block (32).
7. The battery module expansion force detection device according to claim 6, wherein a reinforcing plate (34) is fixedly connected between the second pressing plate (33) and the first sliding block (32), the reinforcing plate (34) is located on one side of the second pressing plate (33) far away from the first pressing plate (23), and two reinforcing plates (34) are provided.
8. The device for detecting the expansion force of the battery module as claimed in claim 1, wherein the power portion (4) comprises a supporting base (41), the power motor (43) is fixedly connected to the supporting base (41), a push plate (46) is slidably connected to one side of the supporting base (41) close to the second extrusion plate (33), and the power motor (43) is in power connection with the push plate (46).
9. The device for detecting the expansion force of the battery module as claimed in claim 8, wherein the push plate (46) is slidably connected with the upper end of the workbench (1) through a second guide rail (45), and the second guide rail (45) is fixedly connected with the upper end of the workbench (1).
10. The battery module expansion force detection device according to claim 9, wherein the push plate (46) is in power connection with the power motor (43) through a spiral worm screw lifter (42), and an output shaft of the power motor (43) is in power connection with an input shaft of the spiral worm screw lifter (42) through a coupling (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296779.5A CN111122035A (en) | 2019-12-16 | 2019-12-16 | Battery module expansion force detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296779.5A CN111122035A (en) | 2019-12-16 | 2019-12-16 | Battery module expansion force detection device |
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| CN111122035A true CN111122035A (en) | 2020-05-08 |
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| CN201911296779.5A Pending CN111122035A (en) | 2019-12-16 | 2019-12-16 | Battery module expansion force detection device |
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Cited By (2)
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| CN111999661A (en) * | 2020-08-10 | 2020-11-27 | 南京莱迪新能源科技有限公司 | Comprehensive experimental device for monitoring working state of lithium ion battery for new energy storage |
| CN114593855A (en) * | 2022-03-31 | 2022-06-07 | 重庆长安新能源汽车科技有限公司 | Method for testing expansion force of battery module |
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Application publication date: 20200508 |