Battery mechanical experiment test equipment

Abstract

The utility model discloses battery mechanics experiment test equipment which comprises a bottom plate, a vertical plate, an impact mechanism, a clamping mechanism and a display screen. The bottom plate lies on the front face of the vertical plate, and the vertical plate is fixedly installed on the rear portion of the bottom plate and is perpendicular to the bottom plate. The impact mechanism is fixedly mounted at the upper part of the vertical plate; a concave sample groove is formed in the upper end surface of the bottom plate, and the clamping mechanisms are fixedly mounted on the left side and the right side of the sample groove and located under the impact mechanism; a first enclosure is fixedly mounted on the periphery of the clamping mechanism on the bottom plate; a second fence is fixedly mounted on the periphery of the first fence, and a section of vacant window is formed in the second fence; stop blocks are arranged in front of and behind the sample groove; the display screen is fixed on one side of the vertical plate through a connecting rod which is provided with a control switch. According to the utility model, the impact heads with different shapes can be replaced in sequence, the stress and deformation of the battery when the battery is impacted by impact objects with different shapes can be detected, and meanwhile, double fences are arranged, so that the protection capability in an impact experiment is greatly enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing, in particular to a testing device used for battery mechanics experiments. Background Art

[0002] A battery refers to a cup, trough or other container or part of a composite container that contains electrolyte solution and metal electrodes to generate current. It is a device that can convert chemical energy into electrical energy. It has positive and negative electrodes. With the advancement of science and technology, batteries generally refer to small devices that can generate electrical energy. Such as solar cells. The performance parameters of batteries mainly include electromotive force, capacity, specific energy and resistance. Using batteries as energy sources, we can obtain current with stable voltage, stable current, long-term stable power supply, and little external influence. In addition, the battery has a simple structure, is easy to carry, and is easy to charge and discharge. It is not affected by external climate and temperature. The performance is stable and reliable. It plays a great role in all aspects of modern social life. Before leaving the factory, the battery will undergo various tests, including puncture test, large discharge test, extrusion test, extrusion test, impact test, etc. Among them, the impact test is to test the stability of the battery under impact, which is an important test item.

[0003] At present, with the increasing severity of environmental problems and the continuous development of electronic products, batteries have gradually become the main energy carrier used in people's daily necessities and production supplies, especially lithium batteries. With the development of science and technology, lithium batteries have now become mainstream. The existing heavy object impact device for battery detection can generally only use a single specification or a single mode of heavy objects for testing. Replacing the impact weight will affect the accuracy of the test result due to structural reasons, and the existing device has a complex structure and is inconvenient to adjust during use, which affects the rapid progress of the detection work. Therefore, a heavy object impact device for battery detection is provided;

[0004] Chinese patent application number CN202020368980.1 discloses a heavy object impact device for battery detection, which includes a fixed chassis, a detection support column is fixedly connected to the top of the fixed chassis, a wire binding column is fixedly connected to the surface of the detection support column, a pendant line is fixedly connected to the bottom of the wire binding column, a binding block is fixedly connected to the bottom of the pendant line, an angle measuring plate is provided on one side of the binding block, an impact fixing seat is fixedly connected to one side of the detection support column, a battery clamp is fixedly connected to the top of the impact fixing seat, a vertical fixing plate is provided on one side of the battery clamp, and a vertical clamp is fixedly connected to one side of the vertical fixing plate. The disadvantage is that although this technical solution can assist in adjusting the impact force, due to the lack of corresponding protective structure, when the detection is carried out, the detected battery is prone to explosion due to the impact, and the battery shell is broken during the explosion, which can easily cause the internal material to splash, and the high temperature generated instantly can easily cause harm to the surrounding operators, and there are certain safety hazards. In addition, when the battery is impacted, the impact surface is not only judged by the force, but also by the impact area and the shape of the impact object, which will affect the test results. The technical solution protected by the above patent application lacks the function of adjusting the shape of the impact object, resulting in inaccurate and comprehensive test results. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a battery mechanics experimental testing device.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is that a battery mechanics experimental testing device comprises a bottom plate (1), a vertical plate (2), an impact mechanism (3), a clamping mechanism (4) and a display screen;

[0007] The bottom plate (1) lies flat below the vertical plate (2), and the vertical plate is fixedly mounted on the rear of the bottom plate and is perpendicular to the bottom plate;

[0008] The impact mechanism (3) is fixedly mounted on the upper part of the vertical plate, and the clamping mechanism (4) is located directly below the impact mechanism;

[0009] The upper end surface of the bottom plate (1) is provided with a concave sample groove (42), and the clamping mechanism is fixedly mounted on the bottom plate and located on the left and right sides of the sample groove;

[0010] A first enclosure (5) is fixedly installed on the bottom plate at the periphery of the clamping mechanism; a second enclosure (6) is fixedly installed on the periphery of the first enclosure, and the second enclosure is provided with a vacant window (10);

[0011] A base (45) is fixedly mounted at the bottom of the sample tank (42), and a stopper is fixedly mounted on the base. The stoppers are respectively arranged in front and at the rear of the sample tank (42);

[0012] The display screen (8) is fixed to one side of the vertical plate through a connecting rod (7), and a control switch (9) is arranged on the connecting rod.

[0013] Preferably, the impact mechanism (3) comprises a mounting frame (31), an impact cylinder (32), a pressure sensor (33), a connecting frame (34) and an impact assembly (35);

[0014] The mounting frame is fixedly mounted on the upper part of the vertical plate (2), the impact cylinder is fixed on the mounting frame, and the output end of the impact cylinder passes through the mounting frame and extends downward;

[0015] A pressure sensor (33) is fixedly mounted on the output end of the impact cylinder, a connecting frame (34) is fixedly mounted on the bottom of the pressure sensor, and the connecting frame is connected to the impact assembly (35).

[0016] Further preferably, the impact assembly (35) includes a driving motor (351), a cross (352), a monitoring camera (312), a first impact head (353), a second impact head (354), a third impact head (355) and a fourth impact head (356);

[0017] The driving motor is fixedly installed in the middle of the connection frame, and the output end of the driving motor extends downward from the connection frame to be connected to the cross; a monitoring camera is provided at the bottom of the cross, and a transparent lens baffle (313) is provided in front of the lens of the monitoring camera; and a first impact head, a second impact head, a third impact head and a fourth impact head are fixedly installed at the bottom of the outer end of the cross respectively;

[0018] The driving motor drives the cross to rotate and drives the first impact head, the second impact head, the third impact head and the fourth impact head to rotate synchronously.

[0019] More preferably, the first impact head is in the shape of a cone, the second impact head has a square cross section, the third impact head is in the shape of a truncated cone, and the fourth impact head is in the shape of a cone with a hemispherical apex.

[0020] A further preferred embodiment is that the bottom surface of the connection frame is fixedly connected to the circular plate (36), a lifting rod (311) is fixedly arranged at the front of the circular plate and the lifting rod is perpendicular to the upper end surface of the circular plate, and the upper part of the lifting rod is slidably connected to the lifting rod hole arranged on the mounting frame;

[0021] Support blocks (37) are fixedly mounted on the tops of the four outer ends of the cross respectively, and a rotatable rolling ball (38) is embedded in the top of the support block, and the top of the rolling ball is in rolling contact with the bottom surface of the circular plate.

[0022] Still further preferably, a guard plate (39) is provided at the front edge of the circular plate, and the guard plate corresponds to the window (10) of the second enclosure.

[0023] Preferably, the clamping mechanism comprises a clamping cylinder (43) and a clamping block (44);

[0024] A mounting groove (41) for mounting a clamping cylinder is provided on each side of the sample groove;

[0025] A clamping cylinder is respectively arranged in the two installation grooves, and the output ends of the two clamping cylinders are connected with the clamping blocks; the clamping cylinders drive the clamping blocks to move simultaneously and toward or away from each other in the sample groove.

[0026] Preferably, the cross-sectional shape of the first enclosure is an isosceles trapezoid; both the first enclosure and the second enclosure are made of stainless steel reinforced steel.

[0027] The beneficial effects of the utility model are:

[0028] Impact heads of different shapes can be replaced in sequence to detect the force and deformation of sample batteries when impacted by objects of different shapes, thereby obtaining more comprehensive experimental data with strong practicality.

[0029] Enhanced protection during impact test. The first enclosure and the second enclosure are respectively set on the periphery of the impact mechanism to play a role of surrounding protection during the experiment. At the same time, the sample battery to be tested is placed in a concave sample slot, and a circular plate is set above the sample slot, and a base is set at the bottom of the sample slot, which greatly enhances the protection of the sample battery above and below during the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the battery mechanics experimental testing equipment of the utility model;

[0032] Figure 2 A sample tank structure diagram of an embodiment of the battery mechanics experimental test equipment of the utility model;

[0033] Figure 3 It is a side view of an embodiment of the battery mechanics experimental testing equipment of the utility model;

[0034] Figure 4 A top view of the impact mechanism of the battery mechanics experimental test equipment embodiment of the utility model;

[0035] Figure 5 It is a front view of the impact mechanism of the embodiment of the battery mechanics experimental testing equipment of the utility model;

[0036] Figure 6 A bottom view of the impact mechanism of the battery mechanics experimental test equipment embodiment of the utility model;

[0037] Figure 7 It is a rear view of the impact mechanism of the battery mechanics experimental testing equipment embodiment of the present utility model.

[0038] Description of the numbers in the figure:

[0039] 1-bottom plate; 2-vertical plate, 3-impact mechanism, 31-mounting frame, 32-impact cylinder, 33-pressure sensor, 34-connecting frame, 35-impact assembly, 351-driving motor, 352-cross, 353-first impact head, 354-second impact head, 355-third impact head, 356-fourth impact head, 36-round plate, 37-support block, 38-rolling ball, 39-guard plate, 310-reinforcement plate, 311-lifting rod, 312-monitoring camera, 313-lens baffle, 4-clamping mechanism, 41-mounting groove, 42-sample groove, 43-clamping cylinder, 44-clamping block, 45-base, 46-V-groove, 47-block, 5-first enclosure, 6-second enclosure, 7-connecting rod, 8-display screen, 9-control switch, 10-window. DETAILED DESCRIPTION

[0040] Figure 1 The invention relates to a testing device for battery mechanics experiments, which is composed of a bottom plate 1, a vertical plate 2, an impact mechanism 3, a clamping mechanism 4, a first enclosure 5, a second enclosure 6, a connecting rod 7 and a display screen 8.

[0041] The bottom plate 1 is placed flat below the vertical plate, and the vertical plate 2 is fixedly mounted on the rear of the bottom plate and is perpendicular to the bottom plate. The bottom plate and the vertical plate are fixedly connected together to form a solid base for the entire device.

[0042] The impact mechanism 3 is fixedly installed on the upper part of the vertical plate, and the clamping mechanism 4 is fixedly installed in the center of the bottom plate, and the clamping mechanism is located directly below the impact mechanism.

[0043] The bottom plate is respectively fixed with a first enclosure 5 and a second enclosure 6. The first enclosure is fixed to the periphery of the clamping mechanism, and the second enclosure is fixedly installed on the periphery of the inner enclosure. The first enclosure and the second enclosure form a double enclosure at the periphery of the clamping mechanism.

[0044] The display screen 8 is fixed to one side of the vertical plate through a connecting rod 7, and a control switch 9 is arranged on the connecting rod. The control switch is used to start, close and control the movement of the clamping mechanism and the impact mechanism.

[0045] The clamping mechanism 4 is composed of a mounting groove 41 , a sample groove 42 , a clamping cylinder 43 and a clamping block 44 .

[0046] exist Figure 2In the embodiment, a sample groove 42 is recessed downwards in the center of the upper end surface of the bottom plate 1, and a mounting groove 41 for mounting and fixing a clamping cylinder is provided on each side of the sample groove. A clamping cylinder is respectively installed in each of the two mounting grooves, and the output end of the clamping cylinder is fixedly connected to the clamping block. The output ends of the two clamping cylinders located on both sides of the sample groove can drive the clamping block to move simultaneously and toward or away from each other in the sample groove, thereby completing the clamping action.

[0047] The sample slot is used to load the battery test sample (hereinafter referred to as the sample battery), and is also the experimental test area. The sample battery is placed between the clamps on both sides. The front ends of the clamps on both sides are provided with V-shaped grooves, forming a pair of jaws for clamping the experimental battery, which can easily clamp and position the round sample battery or the arc sample battery.

[0048] exist Figure 3 In the embodiment, the cross section of the first enclosure 5 is designed to be an isosceles trapezoid, and both the first enclosure 5 and the second enclosure 6 are made of stainless steel reinforcement. A vacant window 10 is provided in the middle of the second enclosure 6, through which the sample battery can be conveniently placed into the sample slot on the bottom plate, and the sample battery residue in the sample slot can also be easily cleaned.

[0049] A base 45 is installed below the sample tank 42, and the base is fixed at the bottom of the sample tank. Two stoppers 47 are arranged on the base. The two stoppers are respectively fixed on the base and located at the front and back of the sample tank, just blocking the front and back of the sample battery. The front and rear stoppers can also limit the sample battery, improving the stability of the sample battery placed on the base 45.

[0050] The impact mechanism 3 is composed of a mounting frame 31, an impact cylinder 32, a pressure sensor 33, a connecting frame 34 and an impact assembly 35. The mounting frame 31 is fixedly mounted on the upper part of the vertical plate 2, the impact cylinder 32 is fixed on the mounting frame 31, and the output end of the impact cylinder 32 extends downward from the bottom of the impact cylinder and passes through the mounting frame.

[0051] A pressure sensor 33 is fixedly mounted on the end surface of the output end of the impact cylinder 32 , and the bottom of the pressure sensor 33 is fixedly connected to a connection frame 34 , which is in the shape of a rectangular frame. The connection frame 34 is fixedly connected to an impact assembly 35 .

[0052] exist Figure 4 In the figure, the impact assembly 35 is composed of a driving motor 351, a cross 352, a monitoring camera 312, a first impact head 353, a second impact head 354, a third impact head 355 and a fourth impact head 356.

[0053] The driving motor 351 is fixed in the middle of the connecting frame 34, and the output end of the driving motor extends downward from the connecting frame 34 and is fixedly connected to the center of the cross 352. A monitoring camera 312 is provided at the bottom of the cross. A transparent lens baffle 313 is provided in front of the lens of the monitoring camera. In this embodiment, a tempered glass cover covering the monitoring camera is used as the lens baffle ( Figure 6 ). The first impact head 353, the second impact head 354, the third impact head 355 and the fourth impact head 356 are fixedly installed at the bottom of the four outer ends of the cross. Among them, the first impact head 353 is in the shape of a cone, the cross section of the second impact head 354 is a square, the third impact head 355 is in the shape of a truncated cone, and the fourth impact head 356 is in the shape of a cone with a hemispherical vertex. During the experiment, the driving motor is started to drive the cross at the bottom to rotate, and the first impact head, the second impact head, the third impact head and the fourth impact head can be rotated to the front end position of the impact assembly in turn, so as to simulate the impact of impact objects of different shapes and improve the accuracy of the detection experiment.

[0054] A circular plate 36 is fixedly mounted at the bottom of the connection frame 34. The circular plate moves synchronously with the up and down movement of the output end of the impact cylinder. A lifting rod 311 is provided at the front of the circular plate. The lower end of the lifting rod is perpendicular to the circular plate and fixedly connected to the front of the circular plate. The upper part of the lifting rod passes through the lifting rod hole set on the mounting frame 31. The lifting rod slides up and down in the lifting rod hole ( Figure 4 ).

[0055] In addition, four support blocks 37 are fixedly installed on the top of the four outer ends of the cross 352, and a ball 38 is embedded in the top of each support block. The ball can roll on the top of the support block. Due to the gravity of the circular plate itself, the bottom surface of the circular plate always keeps in contact with the top of the ball.

[0056] The purpose of setting the circular plate is to support the four outer ends of the cross 352 by having the rolling ball on the top of the support block fit with the bottom of the circular plate 36, thereby improving the stability of the overall operation of the cross, and setting rolling balls on the top of the four outer ends of the cross to fit with the circular plate and roll on the circular plate to reduce the friction of the cross operation.

[0057] A guard plate 39 ( Figure 5 ), the guard plate 39 corresponds to the window 10 in the middle section of the second enclosure. The guard plate can cover the window on the second enclosure to improve safety. The guard plate is made of stainless steel reinforced steel. In this embodiment, the guard plate is made of 4Cr13 stainless steel plate.

[0058] A reinforcing plate 310 is fixedly installed at the connection points of the mounting frame 31 and the vertical plate on both sides. The reinforcing plate is triangular, so that the two sides of the mounting frame 31 are firmly connected to the vertical plate. By setting the reinforcing plate 310, the stability of the overall installation of the mounting frame 31 can be improved, thereby improving the use stability of the device.

[0059] The working principle of this embodiment:

[0060] During the experiment, the sample battery is first placed on the base 45 in the sample slot 42 and between the front and rear blocks 47. The clamping cylinders 43 arranged on both sides of the sample slot are started by controlling the switch 9. The output ends of the clamping cylinders on both sides respectively drive the clamping blocks 44 on both sides to move toward each other. The two clamping blocks firmly clamp the battery in the slot 46 located on the inner side of the clamping block 44 and complete the clamping action.

[0061] The driving motor 351 is started to drive the cross to rotate to select the impact head shape used in the current experiment, such as selecting the first impact head 353.

[0062] The impact cylinder 32 is started to drive the impact assembly 35 disposed at the bottom thereof to move downward, and simultaneously drives the first impact head 353 located at the front end of the impact assembly to move downward, and the first impact head 353 moves downward and impacts the sample battery.

[0063] While striking the sample battery, the first impact head transmits the reverse impact force to the pressure sensor 33 , and the pressure sensor performs pressure detection and records the magnitude of the reverse impact force received.

[0064] The thrust of the impact cylinder can be adjusted by adjusting the air intake pressure of the impact cylinder 32, thereby realizing impact tests with different pressures. The driving motor 351 installed in the connection frame 34 can also be started to drive the cross 352 to rotate, so that the second impact head 354, the third impact head 355 and the fourth impact head 356 are rotated to the front end in turn, so as to replace the impact heads of different shapes to detect the stress conditions of the battery when it is hit by impact objects of different shapes ( Figure 7 ).

[0065] During the experiment, the first enclosure 5 and the second enclosure 6 are used to shield the sample battery placed in the sample slot on the bottom plate. During the experiment, the sample battery is located in the sunken sample slot 42. Even if the sample battery is broken and exploded, it is blocked by the frame of the sample slot, which can effectively prevent the battery debris from splashing around, thereby reducing the harm to the human body. At the same time, the side and front shapes of the first enclosure 5 are both isosceles trapezoids, which can block and guide the splashing debris to the inside of the enclosure, further suppressing its splashing around. And during the impact test, as the impact assembly moves downward, the guard plate 39 fixedly connected to the front edge of the circular plate moves downward synchronously with the circular plate 36. The lowered guard plate just blocks the front of the window 10 on the second enclosure, which constitutes a further protection, thereby preventing the splashing debris from causing harm to the operator.

[0066] The pressure during impact can be detected by the pressure sensor 33 and the data can be displayed on the display screen 8 in real time, which is convenient for recording data and easy to use.

[0067] The above-described implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. Battery mechanics experimental test equipment, characterized by: It comprises a bottom plate, a vertical plate, an impact mechanism (3), a clamping mechanism (4) and a display screen; The bottom plate (1) lies flat below the vertical plate (2), and the vertical plate is fixedly mounted on the rear of the bottom plate and is perpendicular to the bottom plate; The impact mechanism (3) is fixedly mounted on the upper part of the vertical plate; the clamping mechanism (4) is located directly below the impact mechanism; The upper end surface of the bottom plate is provided with a concave sample groove (42), and the clamping mechanism is fixedly mounted on the bottom plate and is located on the left and right sides of the sample groove; A first enclosure (5) is fixedly mounted on the bottom plate at the periphery of the clamping mechanism; a second enclosure (6) is fixedly mounted on the periphery of the first enclosure, and the second enclosure is provided with a vacant window (10); A base (45) is fixedly mounted at the bottom of the sample tank (42), and a stopper is fixedly mounted on the base, and the stopper is respectively arranged in front and at the rear of the sample tank (42); The display screen (8) is fixed to one side of the vertical plate via a connecting rod (7), and a control switch (9) is arranged on the connecting rod.

2. The battery mechanics experimental testing equipment according to claim 1, characterized in that: The impact mechanism (3) comprises a mounting frame (31), an impact cylinder (32), a pressure sensor (33), a connecting frame (34) and an impact assembly (35); The mounting frame is fixedly mounted on the upper part of the vertical plate (2), the impact cylinder is fixed on the mounting frame, and the output end of the impact cylinder passes through the mounting frame and extends downward; A pressure sensor (33) is fixedly mounted on the output end of the impact cylinder, a connection frame (34) is fixedly mounted on the bottom of the pressure sensor, and the connection frame is fixedly connected to the impact assembly (35).

3. The battery mechanics experimental testing equipment according to claim 2, characterized in that: The impact assembly (35) includes a driving motor (351), a cross (352), a monitoring camera (312), a first impact head (353), a second impact head (354), a third impact head (355) and a fourth impact head (356); The driving motor is fixedly installed in the middle of the connection frame, and the output end of the driving motor extends downward from the connection frame and is connected to the cross; a monitoring camera is provided at the bottom of the cross, and a transparent lens baffle (313) is provided in front of the lens of the monitoring camera; a first impact head, a second impact head, a third impact head and a fourth impact head are fixedly installed at the bottom of the outer end of the cross respectively; The driving motor drives the cross to rotate and drives the first impact head, the second impact head, the third impact head and the fourth impact head to rotate synchronously.

4. The battery mechanics experimental testing equipment according to claim 3, characterized in that: The first impact head is in the shape of a cone, the second impact head has a square cross section, the third impact head is in the shape of a truncated cone, and the fourth impact head is in the shape of a cone with a hemispherical vertex.

5. The battery mechanics experimental testing equipment according to claim 3, characterized in that: The bottom surface of the connection frame is fixedly connected to the circular plate (36), a lifting rod (311) is fixedly arranged at the front of the circular plate and is perpendicular to the upper end surface of the circular plate, and the upper part of the lifting rod is slidably connected to a lifting rod hole arranged on the mounting frame; Support blocks (37) are fixedly mounted on the tops of the four outer ends of the cross, and a rotatable rolling ball (38) is embedded in the top of the support block. The top of the rolling ball is in rolling contact with the bottom surface of the circular plate.

6. The battery mechanics experimental test equipment according to claim 5, characterized in that: A guard plate (39) is provided at the front edge of the circular plate, and the guard plate corresponds to the window (10) of the second enclosure.

7. The battery mechanics experimental testing equipment according to claim 1, characterized in that: The clamping mechanism comprises a clamping cylinder (43) and a clamping block (44); Both sides of the sample tank are respectively provided with a mounting groove (41) for mounting a clamping cylinder; A clamping cylinder is respectively installed in the two installation grooves, and the output ends of the two clamping cylinders are connected to the clamping blocks; the clamping cylinders drive the clamping blocks to move simultaneously and toward or away from each other in the sample groove.

8. The battery mechanics experimental testing equipment according to claim 1, characterized in that: The cross-sectional shape of the first enclosure is an isosceles trapezoid; the first enclosure and the second enclosure are both made of stainless steel reinforced steel.

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