Battery detection clamp

Abstract

The utility model provides a battery detection clamp. The battery detection clamp comprises a rack, a limiting plate, a moving rod, a displacement sensor, a flexible part and a pressure sensor, the limiting plate is mounted on the rack; the position of the limiting plate can be adjusted up and down in the height direction of the rack; the moving rod penetrates through the limiting plate and is in sliding connection with the limiting plate; the displacement sensor is mounted on the moving rod; the flexible part is located below the limiting plate and detachably connected with one end of the moving rod. The battery is clamped between the flexible part and the bottom of the rack; the pressure sensor is disposed in the flexible member. In the application, when the battery reaches the required expansion thickness, the limiting plate is arranged to control the battery to expand to a certain thickness, and then the pressure test is continued; the position of the limiting plate can be adjusted, so that the requirements of batteries with different thicknesses and different test requirements can be met; by arranging the pressure sensor and the displacement sensor, the expansion condition and the pressure change of the battery can be monitored in real time, and accurate data support is provided for battery performance evaluation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and more particularly relates to a battery detection clamp. BACKGROUND

[0002] In the field of batteries, the cycle expansion of a silicon negative electrode battery is an important indicator for evaluating a battery cell. Sometimes, the thickness expansion of a silicon-based negative electrode soft package battery is too large, which may cause the soft package battery to deform and thus have poor performance.

[0003] The current fixed clamp test method fixes the battery in the middle of the clamp plate, and uses the upper and lower steel plates to fix the thickness of the battery for testing, and does not have testing and recording capabilities.

[0004] The thickness expansion of the current soft package battery with a silicon negative electrode is a key number, and sometimes is accompanied by deformation. The cycle thickness expansion rate needs to be recorded and determined in a timely manner. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the embodiment of the application is to provide a battery detection clamp to solve the technical problem that the cycle thickness expansion rate of the battery is difficult to test in the prior art.

[0006] To achieve the above purpose, the technical scheme adopted by the application is: a battery detection clamp is provided, which comprises a rack, a limiting plate, a moving rod, a displacement sensor, a flexible piece and a pressure sensor; the limiting plate is installed on the rack; the position of the limiting plate can be adjusted up and down along the height direction of the rack; the moving rod penetrates through the limiting plate and is in sliding connection with the limiting plate; the displacement sensor is installed on the moving rod; the flexible piece is located below the limiting plate and is detachably connected with one end of the moving rod; a battery is clamped between the flexible piece and the bottom of the rack; and the pressure sensor is arranged in the flexible piece.

[0007] Further, one end of the moving rod is provided with a suction cup, and the suction cup is detachably connected with the flexible piece.

[0008] Further, the moving rod is a light hollow pipe.

[0009] Further, the battery detection clamp further comprises an air cavity and a first air pipe, the air cavity is installed on the rack, one end of the first air pipe is connected with the air cavity, and the other end of the first air pipe penetrates through the moving rod and is connected with the suction cup.

[0010] Further, the battery detection clamp further comprises a telescopic driving piece, the telescopic driving piece is installed on the rack, one end of the telescopic driving piece is connected with the limiting plate, and the telescopic driving piece drives the limiting plate to move up and down. Further, the battery detection clamp further comprises a telescopic driving piece, the telescopic driving piece is installed on the rack, one end of the telescopic driving piece is connected with the limiting plate, and the telescopic driving piece drives the limiting plate to move up and down.

[0011] Further, the telescopic driving member is a cylinder, and the battery detection clamp further comprises a second air pipe, one end of the second air pipe being connected with the air cavity, and the other end of the second air pipe being connected with the cylinder.

[0012] Further, the battery detection clamp further comprises a signal receiver, the signal receiver being mounted on the rack and being electrically connected with the displacement sensor.

[0013] Further, the flexible member is further provided with a communication module, and the communication module is electrically connected with the pressure sensor.

[0014] Further, the moving rod is provided with two, and each moving rod is provided with one displacement sensor.

[0015] Further, the rack comprises a bottom plate, a first side plate, a top plate and a second side plate, the bottom plate, the first side plate, the top plate and the second side plate being sequentially connected to form a frame structure, and the battery is placed on the bottom plate.

[0016] The battery detection clamp provided by the application has the following beneficial effects: compared with the prior art, when the battery reaches the required inflation thickness, the limiting plate can be used to control the battery to inflate to a certain thickness, and then the pressure test is continued; the position of the limiting plate can be adjusted to meet the requirements of batteries of different thicknesses and different test requirements; the pressure sensor and the displacement sensor can be used to monitor the inflation condition and the pressure change of the battery in real time, to provide accurate data support for battery performance evaluation and to improve the detection efficiency; the pressure sensor is arranged on the flexible member, the softness of the flexible member can be used to make the pressure sensor contact the battery more closely, to improve the accuracy of the pressure test, and at the same time, the contraction change of the flexible member can also be used to determine whether the battery is deformed. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 The battery detection clamp provided by the application has the following beneficial effects: compared with the prior art, when the battery reaches the required inflation thickness, the limiting plate can be used to control the battery to inflate to a certain thickness, and then the pressure test is continued; the position of the limiting plate can be adjusted to meet the requirements of batteries of different thicknesses and different test requirements; the pressure sensor and the displacement sensor can be used to monitor the inflation condition and the pressure change of the battery in real time, to provide accurate data support for battery performance evaluation and to improve the detection efficiency; the pressure sensor is arranged on the flexible member, the softness of the flexible member can be used to make the pressure sensor contact the battery more closely, to improve the accuracy of the pressure test, and at the same time, the contraction change of the flexible member can also be used to determine whether the battery is deformed.

[0019] Figure 2 The battery detection clamp provided by the application has the following beneficial effects: compared with the prior art, when the battery reaches the required inflation thickness, the limiting plate can be used to control the battery to inflate to a certain thickness, and then the pressure test is continued; the position of the limiting plate can be adjusted to meet the requirements of batteries of different thicknesses and different test requirements; the pressure sensor and the displacement sensor can be used to monitor the inflation condition and the pressure change of the battery in real time, to provide accurate data support for battery performance evaluation and to improve the detection efficiency; the pressure sensor is arranged on the flexible member, the softness of the flexible member can be used to make the pressure sensor contact the battery more closely, to improve the accuracy of the pressure test, and at the same time, the contraction change of the flexible member can also be used to determine whether the battery is deformed.

[0020] In the drawings, various reference signs represent the following items:

[0021] 100 - rack; 110 - bottom plate; 120 - first side plate; 130 - top plate; 140 - second side plate; 150 - protection plate;

[0022] 200 - limiting plate;

[0023] 300 - moving rod; 310 - suction cup;

[0024] 400 - flexible member;

[0025] 500 - air cavity; 510 - first air pipe; 520 - second air pipe;

[0026] 600 - telescopic driving member;

[0027] 700 - signal receiver; 710 - cable;

[0028] 800 - battery. DETAILED DESCRIPTION

[0029] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0033] The battery detection clamp provided by the embodiment of the present application is suitable for a silicon negative electrode soft package battery. Figure 1 and Figure 2 The battery detection clamp provided by the embodiment of the present application will be described. The battery detection clamp comprises a rack 100, a limiting plate 200, a moving rod 300, a displacement sensor, a flexible piece 400 and a pressure sensor. The limiting plate 200 is installed on the rack 100. The position of the limiting plate 200 can be adjusted up and down along the height direction of the rack 100. The moving rod 300 penetrates through the limiting plate 200 and is in sliding connection with the limiting plate 200. The displacement sensor is installed on the moving rod 300. The flexible piece 400 is located below the limiting plate 200 and is detachably connected with one end of the moving rod 300. The battery 800 is clamped between the flexible piece 400 and the bottom of the rack 100. The pressure sensor is arranged in the flexible piece 400.

[0034] Compared with the prior art, in the embodiment of the present application, when the battery 800 reaches the required swelling thickness, the limiting plate 200 can be used to control the battery 800 to swell to a certain thickness and then continue the pressure test. The position of the limiting plate 200 can be adjusted to meet the requirements of batteries 800 of different thicknesses and different test requirements. By arranging the pressure sensor and the displacement sensor, the swelling condition and the pressure change of the battery 800 can be monitored in real time, accurate data support is provided for the performance evaluation of the battery 800, and the detection efficiency is improved. The pressure sensor is arranged on the flexible piece 400, and the softness of the flexible piece 400 can make the pressure sensor contact the battery 800 more closely, improve the accuracy of the pressure test, and at the same time, by observing the contraction change of the flexible piece 400, whether the battery 800 deforms can also be determined.

[0035] In an embodiment of the present application, referring to Figure 1 and Figure 2 One end of the moving rod 300 is provided with a suction cup 310, and the suction cup 310 is detachably connected with the flexible piece 400.

[0036] In the embodiment, the suction cup 310 can be used to fix the flexible piece 400 on the moving rod 300, and the movement of the flexible piece 400 is facilitated.

[0037] It can be understood that when the battery 800 is not placed, the suction cup 310 has suction force, and the flexible piece 400 is adsorbed on the suction cup 310. The moving rod 300 can be pulled to drive the flexible piece 400 to move, so as to facilitate the placement of the battery 800. When the battery 800 is placed, the suction cup 310 has no suction force, the suction cup 310 is separated from the flexible piece 400, and the flexible piece 400 naturally falls and covers on the battery 800, so as to ensure the accuracy of the pressure test of the battery 800.

[0038] In an embodiment of the present application, the moving rod 300 is a light hollow tube.

[0039] In the embodiment, the moving rod 300 is a light hollow tube, which not only reduces the weight of the moving rod 300, but also provides a convenient condition for installing other components, such as the air pipe, in the light hollow tube. The design of the light hollow tube makes the whole battery detection fixture more portable, easy to operate and maintain.

[0040] In an embodiment of the present application, please refer to Figure 1 and Figure 2 , the battery detection fixture further comprises an air cavity 500 and a first air pipe 510, the air cavity 500 is installed on the rack 100, one end of the first air pipe 510 is connected with the air cavity 500, and the other end of the first air pipe 510 passes through the moving rod 300 and is connected with the suction cup 310.

[0041] In the embodiment, the air cavity 500 and the first air pipe 510 are provided to realize the pneumatic control of the suction cup 310, and improve the convenience and accuracy of the operation. The air cavity 500 is used to provide a gas source, and the gas is delivered to the suction cup 310 through the first air pipe 510 to realize the adsorption and release functions of the suction cup 310. Specifically, when the flexible piece 400 needs to be fixed, the air cavity 500 provides a positive pressure to make the suction cup 310 generate a suction force to firmly adsorb the flexible piece 400 on the suction cup 310; when the flexible piece 400 needs to be released, the air cavity 500 provides a negative pressure or stops supplying gas to make the suction cup 310 lose the suction force, and the flexible piece 400 naturally falls and covers on the battery 800.

[0042] In an embodiment of the present application, please refer to Figure 1 and Figure 2 , the battery detection fixture further comprises a telescopic driving piece 600, the telescopic driving piece 600 is installed on the rack 100, one end of the telescopic driving piece 600 is connected with the limiting plate 200, and the telescopic driving piece 600 is used to drive the limiting plate 200 to move up and down.

[0043] In the embodiment, the telescopic driving piece 600 is provided to conveniently adjust the position of the limiting plate 200 to adapt to the batteries 800 with different thicknesses and different test requirements. The telescopic driving piece 600 can be an electric push rod, an air cylinder or the like, and the telescopic length of the telescopic driving piece 600 is controlled to realize the accurate position adjustment of the limiting plate 200.

[0044] In an embodiment of the present application, the telescopic driving piece 600 is an air cylinder, please refer to Figure 1 and Figure 2 , the battery detection fixture further comprises a second air pipe 520, one end of the second air pipe 520 is connected with the air cavity 500, and the other end of the second air pipe 520 is connected with the air cylinder.

[0045] In this embodiment, by setting the second air pipe 520, the pneumatic control of the air cylinder is realized, and the convenience and accuracy of operation are further improved. The second air pipe 520 is used to deliver the gas in the air cavity 500 to the air cylinder, realizing the extension and retraction movement of the air cylinder, thereby driving the limit plate 200 to move up and down. Specifically, when it is necessary to adjust the position of the limit plate 200, the air cavity 500 provides corresponding air pressure, and the gas is delivered to the air cylinder through the second air pipe 520. The air cylinder performs extension and retraction movement according to the change of air pressure, drives the limit plate 200 to move up and down, so as to achieve the purpose of adjusting the position.

[0046] In an embodiment of the present application, please refer to Figure 1 and Figure 2 The battery detection clamp further comprises a signal receiver 700, which is installed on the rack 100 and electrically connected with the displacement sensor.

[0047] In this embodiment, the signal receiver 700 can receive the signals transmitted by the displacement sensor in real time, and transmit the signals to the external device for processing and analysis. The signal receiver 700 can be a wireless receiver or a wired receiver, which is selected according to actual needs. The setting of the signal receiver 700 enables the battery detection clamp to interact with the external device, which is convenient for data recording and analysis. In this embodiment, the displacement sensor can be connected with the signal receiver 700 through the cable 710.

[0048] In an embodiment of the present application, the flexible member 400 is further provided with a communication module, which is electrically connected with the pressure sensor.

[0049] In this embodiment, the communication module can transmit the pressure data detected by the pressure sensor to the external device in a wireless manner. The communication module can be a Bluetooth module, a Wi-Fi module, etc., which is selected according to actual needs. The setting of the communication module enables the pressure data to be transmitted in real time, which is convenient for data recording and analysis.

[0050] In this embodiment, the flexible member 400 can be made of non-woven fabric or other materials with good flexibility and durability. The non-woven fabric not only can provide sufficient supporting force, but also can effectively buffer the pressure change of the battery during the test process, ensuring the accuracy of the test result. At the same time, the air permeability of the non-woven fabric also helps to dissipate heat and prevent the battery from overheating during the test process.

[0051] In an embodiment of the present application, please refer to Figure 1 and Figure 2 The moving rod 300 is provided with two, and each moving rod 300 is provided with a displacement sensor.

[0052] In this embodiment, by setting two moving rods 300 and displacement sensors, the expansion of the battery 800 can be more comprehensively monitored. The displacement sensor can monitor the displacement change of the moving rod 300 in real time, so as to calculate the expansion thickness of the battery 800. The setting of the two displacement sensors makes the battery detection clamp more accurately monitor the expansion of the battery 800.

[0053] It can be understood that the two moving rods 300 are symmetrically arranged, and the two moving rods 300 are respectively located on the left half and the right half of the surface of the flexible member 400; correspondingly, if the thickness of the left half and the right half of the battery 800 expands inconsistently, it can also be reflected to the different upward distances of the two displacement sensors. At the same time, the signal receiver 700 will set the adjustment limit plate 200 according to the signal on the side of the maximum displacement distance. The moving distance of the whole downward movement is set.

[0054] In an embodiment of the present application, please refer to Figure 1 and Figure 2 , the rack 100 includes a bottom plate 110, a first side plate 120, a top plate 130 and a second side plate 140, and the bottom plate 110, the first side plate 120, the top plate 130 and the second side plate 140 are sequentially connected to form a frame structure; the battery 800 is placed on the bottom plate 110.

[0055] In this embodiment, by setting the bottom plate 110, the first side plate 120, the top plate 130 and the second side plate 140, a stable frame structure is formed, which can effectively support the battery 800 and the various components of the detection clamp. The bottom plate 110 is used to place the battery 800, the first side plate 120 and the second side plate 140 are used to support the top plate 130, and the top plate 130 is used to install other components. The design of the frame structure makes the battery detection clamp more stable and reliable.

[0056] Specifically, the telescopic driving member 600 is installed on the inner side of the top plate 130, the signal receiver 700 is installed on the inner side of the top plate 130, and the air cavity 500 is installed on the outer side of the top plate 130. The top plate 130 is further provided with a protective plate 150, which is used to protect the air cavity 500 from being damaged.

[0057] In another embodiment of the present application, the bottom plate 110 is further provided with a positioning member, which is used to limit the position of the battery 800 to ensure that the battery 800 does not move during the detection process. The positioning member can be a groove, a protrusion or other shapes, which is designed according to the shape and size of the battery 800. The design of the positioning member makes the battery 800 more stable during the detection process, and improves the accuracy of the detection.

[0058] The working principle of the battery detection clamp provided in the embodiment of the present application is as follows:

[0059] By controlling the air cavity 500 and the first air pipe 510, the suction cup 310 generates suction force, firmly adsorbing the flexible piece 400 on the suction cup 310. By pulling the moving rod 300, the flexible piece 400 is moved, and the battery 800 to be detected is placed on the bottom plate 110 of the rack 100;

[0060] After the battery 800 is placed, the suction cup 310 releases the suction force, and the suction cup 310 and the flexible piece 400 are separated. The flexible piece 400 naturally falls and covers the battery 800, to ensure the accuracy of the pressure test of the battery 800;

[0061] When the battery 800 starts to swell, the limiting plate 200 limits the swelling thickness of the battery 800. At this time, the displacement sensor monitors the displacement change of the moving rod 300 in real time and transmits the data to the signal receiver 700. The signal receiver 700 transmits the data to the external device for processing and analysis;

[0062] At the same time, the pressure sensor monitors the pressure change of the battery 800 in real time and transmits the data to the communication module. The communication module transmits the data to the external device for processing and analysis;

[0063] By analyzing the data of the displacement sensor and the pressure sensor, the swelling condition and the pressure change of the battery 800 can be monitored in real time, to provide accurate data support for the performance evaluation of the battery 800. In addition, by observing the contraction change of the flexible piece 400, whether the battery 800 deforms can also be judged;

[0064] When the battery 800 swells to a certain extent, the air cylinder can be controlled to extend and retract by controlling the air cavity 500 and the second air pipe 520, so as to drive the limiting plate 200 to move up and down, to adjust the position of the limiting plate 200, to adapt to batteries 800 of different thicknesses and different test requirements.

[0065] Through the above steps, the accurate detection and evaluation of the battery 800 can be realized.

[0066] The above only describes the preferred embodiments of the present application and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery detection fixture, characterized by, The utility model relates to a battery detection clamp, including: A rack; A limiting plate is installed on the rack; The position of the limiting plate can be adjusted up and down along the height direction of the rack; A moving rod is through the limiting plate and is slidably connected with the limiting plate; A displacement sensor is installed on the moving rod; A flexible piece is located below the limiting plate and is detachably connected with one end of the moving rod; A battery is clamped between the flexible piece and the bottom of the rack; A pressure sensor is arranged in the flexible piece.

2. The battery detection fixture of claim 1, wherein, One end of the moving rod is provided with a suction cup, and the suction cup is detachably connected with the flexible piece.

3. The battery detection fixture of claim 2, wherein, The moving rod is a light hollow pipe.

4. The battery detection fixture of claim 3, wherein, Further comprising an air cavity and a first air pipe, the air cavity is installed on the rack, one end of the first air pipe is connected with the air cavity, the other end of the first air pipe passes through the moving rod and is connected with the suction cup.

5. The battery detection fixture of claim 4, wherein, The battery detection clamp further comprises a telescopic drive, the telescopic drive is installed on the rack, one end of the telescopic drive is connected with the limiting plate, and the telescopic drive drives the limiting plate to move up and down.

6. The battery detection fixture of claim 5, wherein, The telescopic drive is a pneumatic cylinder, and the battery detection clamp further comprises a second air pipe, one end of the second air pipe is connected with the air cavity, and the other end of the second air pipe is connected with the pneumatic cylinder.

7. The battery test fixture of claim 1, wherein The battery detection clamp further comprises a signal receiver, the signal receiver is installed on the rack and is electrically connected with the displacement sensor.

8. The battery test fixture of claim 1, wherein, The flexible piece is further provided with a communication module, and the communication module is electrically connected with the pressure sensor.

9. The battery test fixture of claim 1, wherein, The moving rod is provided with two, and one displacement sensor is arranged on each moving rod.

10. The battery test fixture of any one of claims 1-9, wherein, The rack includes a bottom plate, a first side plate, a top plate and a second side plate, the bottom plate, the first side plate, the top plate and the second side plate are sequentially connected to form a frame structure, and the battery is placed on the bottom plate.

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