A Comprehensive Parameter Testing Device and Method for High-Current Power Batteries

Abstract

The present invention discloses a comprehensive parameter testing device and method for high-current power batteries, which relates to the technical field of battery detection devices. The device includes a bearing base. By providing adjustable first and second probe assemblies, the positive and negative electrodes at different positions of the power battery can be adapted. Moreover, during the connection process between the probe assemblies and the power battery, the cleaning of the metal sleeves can be achieved, and at the same time, the generated gas is used to purge the positive and negative terminals of the power battery, avoiding the situation that the circuit conduction of the positive and negative electrodes of the power battery or the metal sleeves of the probe assemblies is unstable due to dust. By providing a bearing plate and changing the distance from the detection device by means of a sliding rod, the detection of power batteries of different sizes can be adapted. The metal sleeve and the threaded head are connected by threads, and the probe assemblies are mainly connected to the positive and negative terminals of the power battery through the metal sleeves. Therefore, when the metal sleeve is damaged, it can be disassembled and replaced without replacing the entire probe assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection devices, and in particular to a large-current power battery comprehensive parameter testing device and a testing method. Background Art

[0002] A power battery is a power source that provides power for tools, mostly referring to the storage batteries that provide power for electric vehicles, electric trains, electric bicycles, and golf carts. It is mainly different from the starting battery used for starting an automobile engine. Valve-regulated lead-acid batteries, open-type tubular lead-acid batteries, and lithium iron phosphate batteries are mostly used. In the research and development and production of large-scale power batteries, the performance of power batteries is an important indicator to measure the quality. Among them, the charge and discharge tests of power batteries are important links in the performance test of power batteries.

[0003] However, at present, in the internal of the comprehensive parameter detection device for power batteries, detection probes are connected to the positive and negative electrodes of the power battery. The long-term contact and friction between the detection probes and the power battery are likely to cause wear on its outer wall and adhesion of dust and impurities, affecting the circuit conduction between the power battery and the detection probes. In addition, the traditional power battery testing device is relatively large in size and inconvenient to carry, which adds difficulties to the testing work. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a large-current power battery comprehensive parameter testing device and a testing method, which solve the problems that the long-term contact and friction between the detection probes and the power battery are likely to cause wear on its outer wall and adhesion of dust and impurities, affecting the circuit conduction between the power battery and the detection probes, and the traditional power battery testing device is relatively large in size and inconvenient to carry, which adds difficulties to the testing work.

[0005] To achieve the above object, the present invention is realized by the following technical solutions: A comprehensive parameter testing device for high-current power batteries, including a bearing seat, a loading groove is opened at the top of the bearing seat, a power battery is movably arranged inside the loading groove, a detection device is fixedly arranged at the left end of the bearing seat, a protective cover is slidably arranged on the top of the bearing seat, and sliding holes are respectively opened on the front and rear sides of the right side wall of the bearing seat. Slide rods are slidably arranged inside the two sliding holes, and a bearing plate is fixedly connected to one ends of the two slide rods. A first adjustment groove is opened on the right side wall of the detection device, a first slider is slidably arranged inside the first adjustment groove, a first probe assembly is arranged on the right side wall of the first slider, a first lead screw is threadedly connected inside the first slider, and one end of the first lead screw penetrates through the bearing seat and is fixedly connected to a knob. A second adjustment groove is opened on the left side wall of the bearing plate, a second slider is slidably arranged inside the second adjustment groove, second probe assemblies are arranged on the left side walls of the second sliders, and a second lead screw is threadedly connected inside the second slider, and one end of the second lead screw penetrates through the bearing plate and extends to the outside.

[0006] The first probe assembly includes a flange plate, a probe and a plurality of air blowing assemblies are respectively fixedly connected to one side wall of the flange plate, and a threaded head is fixedly arranged at one end of the flange plate. A metal sleeve is threadedly connected to the outer wall of the threaded head, a cleaning assembly is slidably sleeved on the outer wall of the metal sleeve, and one side wall of the cleaning assembly is fixedly connected to all the air blowing assemblies.

[0007] Further, support feet are respectively fixedly connected to the front and rear sides of the bottom of the detection device, and universal wheels are arranged on the front and rear sides of the bottom of the bearing plate.

[0008] Further, the slide rod and the bearing seat are fixedly connected by bolts. A T-shaped groove is opened on the top of the bearing seat, and T-shaped blocks are respectively fixedly arranged on the front and rear sides of the bottom of the protective cover. The T-shaped groove and the T-shaped block are adapted in structure.

[0009] Further, the first probe assembly and the second probe assembly are two components with exactly the same structure.

[0010] Further, the cleaning assembly includes a cleaning ring, a plurality of bristles are uniformly fixedly connected to the inner wall of the cleaning ring, and a plurality of thimbles are uniformly fixedly arranged on one side wall of the cleaning ring and a plurality of air outlet holes are opened.

[0011] Further, the air blowing assembly includes a piston cylinder, a piston is slidably arranged inside the piston cylinder, a piston rod is fixedly arranged at one end of the piston, and an air hole is jointly opened inside the piston and the piston rod. A spring is jointly fixedly connected between the air hole and the cavity of the piston cylinder.

[0012] Further, each piston rod is respectively connected to one of the air outlet holes.

[0013] Further, the metal sleeve is a component made of silver material.

[0014] The present invention also discloses a test method for a comprehensive parameter test device of a high-current power battery, and the specific method includes the following steps:

[0015] Step 1, adjusting the probe assembly: respectively adjust the first slider and the second slider according to the size of the power battery to be tested, so that the positions of the first probe assembly and the second probe assembly correspond to the positive and negative electrodes at both ends of the power battery, and then pull the carrier plate to make the distance between the carrier plate and the side wall of the detection device much larger than the length of the power battery, and then place the power battery into the loading slot;

[0016] Step 2, cleaning operation: place the power battery into the loading slot, and then push one end (positive electrode or negative electrode) of the power battery into contact with the first probe assembly. When the power battery presses the cleaning assembly, the cleaning assembly slides along the outer wall of the metal sleeve, and at the same time cleans the surface of the metal sleeve. Then push the carrier plate closer to the power battery, connect the second probe assembly to one of the positive and negative electrodes of the power battery, and fix the sliding rod and the bearing seat with the fastening bolt. The working process of the second probe assembly is exactly the same as that of the first probe assembly;

[0017] Step 3, flushing operation: in Step 2, during the process of the first probe assembly and the second probe assembly being pushed, the cleaning ring pushes the piston rod to slide inside the piston cylinder, and the gas inside the piston cylinder is squeezed by the piston and discharged through the air hole, and finally impacts on the positive or negative electrode end of the power battery through the air outlet hole. Beneficial effects

[0018] The present invention provides a comprehensive parameter test device and a test method for a high-current power battery. Compared with the prior art, the following beneficial effects are achieved:

[0019] 1. A comprehensive parameter testing device and method for high-current power batteries, comprising a bearing seat. A loading groove is formed at the top of the bearing seat. A power battery is movably arranged inside the loading groove. A detection device is fixedly arranged at the left end of the bearing seat. A protective cover is slidably arranged on the top of the bearing seat. Slide holes are formed on both the front and rear sides of the right side wall of the bearing seat. Slide rods are slidably arranged inside the two slide holes. A bearing plate is fixedly connected to one ends of the two slide rods. A first adjustment groove is formed on the right side wall of the detection device. A first slider is slidably arranged inside the first adjustment groove. A first probe assembly is arranged on the right side wall of the first slider. A first lead screw is threadedly connected inside the first slider. One end of the first lead screw penetrates through the bearing seat and is fixedly connected to a knob. A second adjustment groove is formed on the left side wall of the bearing plate. A second slider is slidably arranged inside the second adjustment groove. Second probe assemblies are arranged on the left side walls of the second sliders. A second lead screw is threadedly connected inside the second slider. One end of the second lead screw penetrates through the bearing plate and extends to the outside. By providing adjustable first and second probe assemblies, the positive and negative electrodes at different positions of the power battery can be adapted. Moreover, during the connection of the probe assemblies to the power battery, the metal sleeves can be cleaned, and the generated gas is used to purge the positive and negative terminals of the power battery, avoiding the situation where the positive and negative electrodes of the power battery or the metal sleeves of the probe assemblies cause unstable circuit conduction due to dust, thereby improving the test accuracy of the device.

[0020] 2. A comprehensive parameter testing device and method for high-current power batteries. By providing a bearing plate to change the distance from the detection device through slide rods, it can be adapted to the detection of power batteries of different sizes, increasing the applicable range of the device.

[0021] 3. A comprehensive parameter testing device and method for high-current power batteries. The first probe assembly includes a flange plate. A probe and several air blowing assemblies are fixedly connected to one side wall of the flange plate. A threaded head is fixedly arranged at one end of the flange plate. A metal sleeve is threadedly connected to the outer wall of the threaded head. A cleaning assembly is slidably sleeved on the outer wall of the metal sleeve. One side wall of the cleaning assembly is fixedly connected to all the air blowing assemblies. The metal sleeve and the threaded head are connected by threads. The probe assembly is mainly connected to the positive and negative terminals of the power battery through the metal sleeve. Therefore, when the metal sleeve is damaged, it can be disassembled and replaced, without the need to replace the entire probe assembly, saving manufacturing costs, avoiding waste of materials, and being beneficial to the accuracy of the testing process at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 is an exploded three-dimensional structural schematic diagram of the present invention;

[0024] Figure 3Schematic diagram of the enlarged three-dimensional structure of part A of the present invention;

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the carrier plate of the present invention;

[0026] Figure 5 Schematic diagram of the exploded three-dimensional structure of the first probe assembly of the present invention;

[0027] Figure 6 Schematic diagram of the three-dimensional structure of the cleaning assembly of the present invention;

[0028] Figure 7 Schematic diagram of the exploded three-dimensional structure of the air blowing assembly of the present invention;

[0029] In the figure: 1, carrier seat; 2, loading groove; 3, power battery; 4, detection device; 5, protective cover; 6, sliding hole; 7, sliding rod; 8, carrier plate; 9, first adjustment groove; 10, first slider; 11, first probe assembly; 111, flange; 112, probe; 113, air blowing assembly; 1131, piston cylinder; 1132, piston; 1133, piston rod; 1134, air hole; 1135, spring; 114, threaded head; 115, metal sleeve; 116, cleaning assembly; 1161, cleaning ring; 1162, brush bristles; 1163, thimble; 1164, air outlet hole; 12, first lead screw; 13, second adjustment groove; 14, second slider; 15, second probe assembly; 16, second lead screw. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-7, the present invention provides a technical solution: a comprehensive parameter testing device for high-current power batteries, including a bearing base 1. A loading groove 2 is opened at the top of the bearing base 1. A power battery 3 is movably arranged inside the loading groove 2. A detection device 4 is fixedly arranged at the left end of the bearing base 1. A protective cover 5 is slidably arranged on the top of the bearing base 1. Slide holes 6 are opened on both the front and rear sides of the right side wall of the bearing base 1. Slide rods 7 are slidably arranged inside the two slide holes 6. One ends of the two slide rods 7 are fixedly connected together to form a bearing plate 8. A first adjustment groove 9 is opened on the right side wall of the detection device 4. A first slider 10 is slidably arranged inside the first adjustment groove 9. A first probe assembly 11 is arranged on the right side wall of the first slider 10. A first lead screw 12 is threadedly connected inside the first slider 10. One end of the first lead screw 12 penetrates through the bearing base 1 and is fixedly connected with a knob. A second adjustment groove 13 is opened on the left side wall of the bearing plate 8. A second slider 14 is slidably arranged inside the second adjustment groove 13. Second probe assemblies 15 are arranged on the left side walls of the second sliders 14. A second lead screw 16 is threadedly connected inside the second slider 14. One end of the second lead screw 16 penetrates through the bearing plate 8 and extends to the outside. The first probe assembly 11 includes a flange plate 111. A probe 112 and a plurality of air blowing assemblies 113 are respectively fixedly connected to one side wall of the flange plate 111. A threaded head 114 is fixedly arranged at one end of the flange plate 111. A metal sleeve 115 is threadedly connected to the outer wall of the threaded head 114. A cleaning assembly 116 is slidably sleeved on the outer wall of the metal sleeve 115. One side wall of the cleaning assembly 116 is fixedly connected with all the air blowing assemblies 113. Support feet are fixedly connected to both the front and rear sides of the bottom of the detection device 4. Universal wheels are arranged on both the front and rear sides of the bottom of the bearing plate 8. The slide rod 7 and the bearing base 1 are fixedly connected by bolts. A T-shaped groove is opened on the top of the bearing base 1. T-shaped blocks are fixedly arranged on both the front and rear sides of the bottom of the protective cover 5. The T-shaped groove and the T-shaped block are adapted in structure. The first probe assembly 11 and the second probe assembly 15 are two components with exactly the same structure. The cleaning assembly 116 includes a cleaning ring 1161. A plurality of bristles 1162 are evenly fixedly connected to the inner wall of the cleaning ring 1161. A plurality of thimble pins 1163 are evenly fixedly arranged on one side wall of the cleaning ring 1161 and a plurality of air outlet holes 1164 are opened. The air blowing assembly 113 includes a piston cylinder 1131. A piston 1132 is slidably arranged inside the piston cylinder 1131. A piston rod 1133 is fixedly arranged at one end of the piston 1132. An air hole 1134 is jointly opened inside the piston 1132 and the piston rod 1133. A spring 1135 is fixedly connected between the air hole 1134 and the cavity of the piston cylinder 1131. Each piston rod 1133 is respectively connected to one of the air outlet holes 1164. The metal sleeve 115 is made of silver material.

[0032] The present invention also discloses a testing method for a comprehensive parameter testing device for high-current power batteries. The specific method includes the following steps:

[0033] Step 1. Adjust the probe assembly: According to the size of the power battery to be tested, adjust the first slider 10 and the second slider 14 respectively, so that the positions of the first probe assembly 11 and the second probe assembly 15 correspond to the positive and negative electrodes at both ends of the power battery. Then pull the carrier plate 8 to make the distance between the carrier plate 8 and the side wall of the detection device 4 much larger than the length of the power battery. Then place the power battery into the loading slot 2;

[0034] Step 2. Cleaning operation: Place the power battery into the loading slot 2, and then push one end (the positive or negative electrode) of the power battery to contact the first probe assembly 11. When the power battery presses the cleaning component 116, the cleaning component 116 slides along the outer wall of the metal sleeve 115, and at the same time cleans the surface of the metal sleeve 115. Then push the carrier plate 8 closer to the power battery. The second probe assembly 15 is connected to one of the positive and negative electrodes of the power battery. Fix the sliding rod 7 and the bearing seat 1 with the fastening bolt. The working process of the second probe assembly 15 is exactly the same as that of the first probe assembly 11;

[0035] Step 3. Flushing operation: In Step 2, when the first probe assembly 11 and the second probe assembly 15 are being pushed, the cleaning ring 1161 pushes the piston rod 1133 to slide inside the piston cylinder 1131. The gas inside the piston cylinder 1131 is squeezed by the piston 1132 and discharged through the air hole 1134, and finally impacts on the positive or negative electrode end of the power battery through the air outlet hole 1164.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A comprehensive parameter testing device for high-current power batteries, comprising a bearing seat (1), characterized in that: A loading groove (2) is formed at the top of the bearing seat (1), a power battery (3) is movably arranged inside the loading groove (2), a detection device (4) is fixedly arranged at the left end of the bearing seat (1), a protective cover (5) is slidably arranged on the top of the bearing seat (1), and sliding holes (6) are formed on both the front and rear sides of the right side wall of the bearing seat (1). Slide rods (7) are slidably arranged inside the two sliding holes (6), and the two slide rods (7) are fixedly connected to a bearing plate (8) at one end. A first adjustment groove (9) is formed on the right side wall of the detection device (4), a first slider (10) is slidably arranged inside the first adjustment groove (9), a first probe assembly (11) is arranged on the right side wall of the first slider (10), a first lead screw (12) is threadedly connected inside the first slider (10), one end of the first lead screw (12) penetrates through the bearing seat (1) and is fixedly connected to a knob. A second adjustment groove (13) is formed on the left side wall of the bearing plate (8), a second slider (14) is slidably arranged inside the second adjustment groove (13), second probe assemblies (15) are arranged on the left side walls of the second sliders (14), and a second lead screw (16) is threadedly connected inside the second slider (14). One end of the second lead screw (16) penetrates through the bearing plate (8) and extends to the outside; The first probe assembly (11) includes a flange plate (111), a probe (112) and a plurality of air blowing assemblies (113) are fixedly connected to one side wall of the flange plate (111) respectively, a threaded head (114) is fixedly arranged at one end of the flange plate (111), a metal sleeve (115) is threadedly connected to the outer wall of the threaded head (114), a cleaning assembly (116) is slidably sleeved on the outer wall of the metal sleeve (115), and one side wall of the cleaning assembly (116) is fixedly connected to all the air blowing assemblies (113); The cleaning assembly (116) includes a cleaning ring (1161), a plurality of bristles (1162) are uniformly fixedly connected to the inner wall of the cleaning ring (1161), a plurality of thimbles (1163) are uniformly fixedly arranged on one side wall of the cleaning ring (1161), and a plurality of air outlet holes (1164) are formed; The air blowing assembly (113) includes a piston cylinder (1131), a piston (1132) is slidably arranged inside the piston cylinder (1131), a piston rod (1133) is fixedly arranged at one end of the piston (1132), an air hole (1134) is formed inside the piston (1132) and the piston rod (1133) together, and a spring (1135) is fixedly connected between the air hole (1134) and the cavity of the piston cylinder (1131).

2. The comprehensive parameter testing device for high-current power batteries according to claim 1, wherein: Support feet are fixedly connected to both the front and rear sides of the bottom of the detection device (4), and universal wheels are arranged on both the front and rear sides of the bottom of the bearing plate (8).

3. The comprehensive parameter testing device for high-current power batteries according to claim 2, characterized in that: The sliding rod (7) is fixedly connected to the bearing seat (1) by bolts. A T-shaped groove is formed at the top of the bearing seat (1). T-shaped blocks are fixedly arranged on both the front and rear sides of the bottom of the protective cover (5). The T-shaped groove and the T-shaped block are adapted to each other in structure.

4. The comprehensive parameter testing device for high-current power batteries according to claim 3, wherein: The first probe assembly (11) and the second probe assembly (15) are two components with exactly the same structure.

5. The comprehensive parameter testing device for high-current power batteries according to claim 4, wherein: Each piston rod (1133) is respectively connected to one of the air outlet holes (1164).

6. The comprehensive parameter testing device for high-current power batteries according to claim 5, wherein: The metal sleeve (115) is a component made of silver material.

7. A test method for the comprehensive parameter test device of high-current power batteries according to claim 6, characterized in that: The method includes the following steps: Step 1, adjusting the probe assembly: Adjust the first slider (10) and the second slider (14) respectively according to the size of the power battery to be tested, so that the positions of the first probe assembly (11) and the second probe assembly (15) correspond to the positive and negative electrodes at both ends of the power battery. Then pull the bearing plate (8) to make the distance between the bearing plate (8) and the side wall of the detection device (4) much larger than the length of the power battery. Then place the power battery into the loading slot (2). Step 2, cleaning operation: Place the power battery into the loading slot (2). Then push one end (the positive or negative electrode) of the power battery to contact the first probe assembly (11). When the power battery squeezes the cleaning component (116), the cleaning component (116) slides along the outer wall of the metal sleeve (115), and at the same time cleans the surface of the metal sleeve (115). Then push the bearing plate (8) close to the power battery. The second probe assembly (15) is connected to one of the positive and negative electrodes of the power battery. Fix the sliding rod (7) and the bearing seat (1) with the fastening bolt. The working process of the second probe assembly (15) is exactly the same as that of the first probe assembly (11). Step 3, flushing operation: During the process that the first probe assembly (11) and the second probe assembly (15) are pushed in Step 2, the cleaning ring (1161) pushes the piston rod (1133) to slide inside the piston cylinder (1131). The gas inside the piston cylinder (1131) is squeezed by the piston (1132) and discharged through the air hole (1134), and finally impacts on the positive or negative end of the power battery through the air outlet hole (1164).

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