Battery charging and discharging detection equipment

Abstract

The utility model relates to the technical field of battery production equipment, in particular to battery charging and discharging detection equipment. A battery charging and discharging detection device is used for charging and discharging a battery, a first movable frame is slidably connected to a mounting frame, a second movable frame is slidably connected to the mounting frame, the first movable frame is located above the second movable frame, a battery supporting assembly is used for placing the battery, and a first probe assembly is arranged on the first movable frame. The first probe assembly is arranged on the first movable frame, the second probe assembly is arranged on the second movable frame, the movable frame driving assembly is fixedly installed on one of the first movable frame and the second movable frame, and the output end of the movable frame driving assembly is connected to the other one. The movable frame driving assembly can drive the first movable frame and the second movable frame to be close to each other in the vertical direction so that the first probe assembly and the second probe assembly can make contact with the positive electrode and the negative electrode of the battery. And a lifting structure does not need to be arranged on the battery supporting assembly, so that the operation process is simplified.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery production equipment, and in particular to a battery charging and discharging detection equipment. BACKGROUND

[0002] The technical field of battery production equipment is an important part of the battery industry, which covers the entire production process of batteries from raw material processing to finished battery assembly. In this process, there are multiple key process links such as capacity distribution and formation, and each link has a very high requirement for the precision, efficiency and automation degree of the equipment. With the rapid development of the battery industry, higher standards are put forward for the performance and reliability of manufacturing equipment, which promotes the continuous technological innovation and process optimization of the industry. The battery charging and discharging detection equipment includes capacity distribution equipment, formation equipment, pre-charging equipment, etc.

[0003] The battery charging and discharging detection equipment contacts the probe assembly with the battery and charges and discharges the battery through the lifting probe assembly. The lifting structure of the existing battery charging and discharging detection equipment is complex, the manufacturing cost is high, and it is not easy to operate. CONTENT OF THE INVENTION

[0004] The application embodiment discloses a battery charging and discharging detection equipment, which can realize that the battery support assembly and the battery are fixed, the first probe assembly vertically moves downward to contact the positive electrode of the battery, and the second probe assembly vertically moves upward to contact the negative electrode of the battery. The structure is simple, easy to operate, the manufacturing cost is low, the stability of the battery is guaranteed, and the damage of the battery is reduced.

[0005] In order to achieve the above-mentioned purpose, the application embodiment discloses a battery charging and discharging detection equipment applied to a battery module, the battery module includes a battery, the battery charging and discharging detection equipment can charge and discharge the battery, and the battery charging and discharging detection equipment includes:

[0006] A mounting frame;

[0007] A first movable frame which is slidingly connected to the mounting frame;

[0008] A second movable frame which is slidingly connected to the mounting frame, and the first movable frame is located above the second movable frame;

[0009] A battery support assembly which is used for placing the battery;

[0010] A first probe assembly which is arranged on the first movable frame;

[0011] A second probe assembly which is arranged on the second movable frame;

[0012] An active frame driving assembly is fixedly installed on one of the first active frame and the second active frame, and an output end of the active frame driving assembly is connected to the other one of the first active frame and the second active frame. When the active frame driving assembly is in an extension state, the active frame driving assembly can drive the first active frame and the second active frame to move away from each other in the vertical direction. When the active frame driving assembly is in a contraction state, the active frame driving assembly can drive the first active frame and the second active frame to move close to each other in the vertical direction, so that the first probe assembly and the second probe assembly are in contact with the positive and negative poles of the battery.

[0013] As an optional implementation, the active frame driving assembly includes a cylinder, one of the first active frame and the second active frame is connected to a driving end of the cylinder, and the other one is connected to a non-driving end of the cylinder. The cylinder can drive the first active frame to move vertically downward, so that the first probe assembly is in contact with the positive pole of the battery. The cylinder can drive the second active frame to move vertically upward, so that the second probe assembly is in contact with the negative pole of the battery.

[0014] As an optional implementation, the battery charging and discharging detection device further includes a guide, a first sliding member and a second sliding member. The guide is arranged on the mounting frame and is arranged in the vertical direction. The first sliding member and the second sliding member are both slidingly connected to the guide. The first active frame is connected to the first sliding member, and the second active frame is connected to the second sliding member.

[0015] As an optional implementation, the battery charging and discharging detection device further includes a positioning member arranged on the mounting frame. When the first active frame moves downward in the vertical direction to the point where the first probe assembly is in contact with the positive pole of the battery, the first active frame abuts against the positioning member. When the second active frame moves upward in the vertical direction to the point where the second probe assembly is in contact with the negative pole of the battery, the second active frame abuts against the positioning member.

[0016] As an optional implementation, the battery charging and discharging detection device further includes a first adjusting member and a second adjusting member. The first active frame is provided with a first extension portion arranged in the vertical direction corresponding to the positioning member. A first adjusting hole is arranged in the vertical direction in the first extension portion. The first adjusting member is movably connected to the first extension portion through the first adjusting hole, so as to adjust the length of the first adjusting member protruding from the lower surface of the first extension portion. When the first probe assembly is in contact with the positive pole of the battery, the lower end of the first adjusting member abuts against the positioning member.

[0017] The second movable frame is provided with a second extension part, the second extension part is provided corresponding to the positioning part in the vertical direction, a second adjusting hole is provided in the second extension part in the vertical direction, and the second adjusting part is movably connected to the second extension part through the second adjusting hole to adjust the length of the second adjusting part extending out of the upper surface of the second extension part, so that when the second probe assembly contacts the negative electrode of the battery, the upper end of the second adjusting part abuts against the positioning part.

[0018] As an optional implementation, the first adjusting part and the second adjusting part are both screws, the first adjusting hole is provided with a first thread, the screw rod of the first adjusting part is threadedly connected with the first adjusting hole, the second adjusting hole is provided with a second thread, and the screw rod of the second adjusting part is threadedly connected with the second adjusting hole.

[0019] As an optional implementation, the battery charging and discharging detection device further comprises first and second limiting blocks, the first and second limiting blocks are both arranged on the mounting frame, the first limiting block is arranged close to the upper end of the guide part, and the second limiting block is arranged close to the lower end of the guide part, so that when the first movable frame moves vertically upward to be close to the upper end of the guide part, the first sliding part can abut against the first limiting block, and when the second movable frame moves vertically downward to be close to the lower end of the second movable frame, the second sliding part can abut against the second limiting block.

[0020] As an optional implementation, the first probe assembly comprises a plurality of first probe rows, each first probe row is fixedly arranged on the first movable frame, each first probe row extends in a first horizontal direction, and a plurality of first probe rows are arranged in a second horizontal direction in sequence.

[0021] The second probe assembly comprises a plurality of second probe rows, each second probe row is fixedly arranged on the second movable frame, each second probe row extends in the first horizontal direction, and a plurality of second probe rows are arranged in the second horizontal direction in sequence, and each second probe row is arranged corresponding to each first probe row in the vertical direction.

[0022] As an optional implementation, the first movable frame comprises a first bearing frame and a first connecting plate, the first connecting plate is slidably connected to the mounting frame, the first bearing frame is fixedly connected to the first connecting plate, and the first probe row is fixedly arranged on the first bearing frame.

[0023] The second movable frame comprises a second bearing plate and a second connecting plate, the second connecting plate is slidingly connected to the mounting frame, and the second bearing frame is fixedly connected to the second connecting plate, and the second probe array is fixedly arranged on the second bearing frame.

[0024] As an optional implementation, the battery support assembly comprises a fixing frame, the battery module is arranged on the fixing frame, and the fixing frame can avoid the moving path of the first movable frame and the second movable frame in the vertical direction in the first horizontal direction.

[0025] Compared with the prior art, the application has the following beneficial effects:

[0026] The battery charging and discharging detection equipment provided by the embodiment of the application has the following beneficial effects: when the movable frame driving assembly is in the stretched state, the movable frame driving assembly can drive the first movable frame and the second movable frame to move away from each other in the vertical direction; when the movable frame driving assembly is in the contracted state, the movable frame driving assembly can drive the first movable frame and the second movable frame to move close to each other in the vertical direction, so that the first probe assembly and the second probe assembly are in contact with the positive and negative poles of the battery. By placing the battery on the fixed battery support assembly and arranging the first probe assembly and the second probe assembly on the movable frame, the operator only needs to place the battery module on the battery support assembly, and the battery is always stationary, so that a lifting structure does not need to be arranged on the battery support assembly, the operation process is simplified, the battery is not easily damaged, and the stability and safety of the equipment are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0028] Figure 1 The structural schematic diagram of the battery charging and discharging detection equipment disclosed by the embodiment of the application in the first perspective view;

[0029] Figure 2 The structural schematic diagram of the battery charging and discharging detection equipment disclosed by the embodiment of the application in the second perspective view;

[0030] Figure 3 The structural schematic diagram of the battery charging and discharging detection equipment disclosed by the embodiment of the application in the second perspective view; Figure 2 The sectional view of A-A in FIG. 1.

[0031] Explanation of reference signs:

[0032] 100 - battery charge and discharge detection device; 1 - mounting frame; 11 - guide; 111 - first limit block; 112 - second limit block; 2 - first movable frame; 21 - first sliding piece; 22 - first extension; 22a - first adjusting hole; 23 - first adjusting piece; 24 - first bearing frame; 25 - first connecting plate; 3 - second movable frame; 31 - second sliding piece; 32 - second extension; 32a - second adjusting hole; 33 - second adjusting piece; 34 - second bearing frame; 35 - second connecting plate; 4 - battery support assembly; 41 - fixed frame; 42 - battery module; 421 - battery tray; 5 - first probe assembly; 51 - first probe row; 6 - second probe assembly; 61 - second probe row; 7 - movable frame driving assembly; 71 - air cylinder; 71a - driving end; 71b - non-driving end; 8 - positioning piece; X - first horizontal direction; Y - second horizontal direction. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] In the present application, the terms "upper", "lower", "top", "bottom", "inner", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0035] In addition, in addition to indicating the orientation or positional relationship, some of the above terms can also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0036] In addition, the terms "provided with", "provided with", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0037] In addition, the terms "first", "second" and the like are used merely to distinguish different devices, elements or components (which can be of the same or different type and configuration), and are not intended to indicate or imply relative importance or significance of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] The battery production technology field is an important part of the battery industry, which covers the entire production process of batteries from raw material processing to finished battery assembly. In this process, there are many key process links such as capacity distribution and formation, each of which has very high requirements for the accuracy, efficiency and automation level of the equipment. With the rapid development of the battery industry, higher standards for the performance and reliability of manufacturing equipment are required, prompting the industry to continuously innovate technology and optimize processes. Battery charge and discharge detection equipment includes capacity distribution equipment, formation equipment, pre-charging equipment, etc.

[0039] Battery capacity distribution is a key step in battery manufacturing and quality control. Capacity distribution refers to charging and discharging tests on batteries to accurately measure the actual capacity of the battery, ensuring that each battery unit in the battery pack has similar performance. The battery is first charged at a constant current until it reaches the preset charging cutoff voltage. After charging is complete, the battery is allowed to rest for a period of time to allow the temperature and pressure inside the battery to naturally balance. After resting, the battery is discharged at a constant current until the discharge cutoff voltage is reached. The discharge current is usually set according to the rated capacity of the battery. After discharge is complete, the battery is again allowed to rest to simulate the rest state in actual use. After resting, the battery is charged at a constant current for a second time until the charging cutoff voltage is reached. After constant current charging, the battery enters a constant voltage charging phase, during which the charging current gradually decreases until it reaches a very low value, indicating that the battery is close to full charge. After constant voltage charging is complete, the battery is subjected to a final constant current discharge to determine its actual capacity. During the entire capacity distribution process, the battery's voltage, current, and temperature are monitored and recorded in real time. After capacity distribution is complete, the battery's performance is evaluated by analyzing these data, and the battery is classified according to its capacity and internal resistance. Based on the results of the capacity distribution test, the battery is classified into different grades for subsequent assembly and use.

[0040] Battery charge and discharge detection equipment contacts the battery through a lifting probe assembly and charges and discharges the battery. The charge and discharge equipment generally includes multiple probes to achieve the purpose of contacting multiple batteries at a time. In the prior art, the battery tray is placed on the battery carrier, the battery is placed in the battery tray, the battery carrier can be lifted, the upper probe assembly moves vertically downward to contact the positive electrode of the battery, and the battery carrier is lowered. The upper probe assembly and the battery move downward together until the negative electrode of the battery contacts the lower probe assembly. The battery carrier must be designed with a lifting structure while ensuring that it supports the battery. Such a structure is relatively complex and has a high manufacturing cost, and the operation is also relatively complex.

[0041] Based on this, the embodiment of the present application discloses a battery charging and discharging detection device, the battery and the battery support assembly are fixed, the movable frame driving assembly can drive the first movable frame and the second movable frame to approach in the vertical direction, so that the probe assembly contacts the positive and negative poles of the battery. This lifting structure is simple, easy to operate, low in manufacturing cost, ensures the stability of the battery, and reduces the damage of the battery.

[0042] The technical solutions of the present application will be further described below in combination with embodiments and drawings.

[0043] Please refer to Figure 1 and Figure 2 , Figure 1 The structure schematic diagram of the battery charging and discharging detection device 100 disclosed by the embodiment of the present application is in the first perspective, Figure 2 The structure schematic diagram of the battery charging and discharging detection device 100 disclosed by the embodiment of the present application is in the second perspective. The embodiment of the present application discloses a battery charging and discharging detection device 100 for charging and discharging the battery, which comprises:

[0044] The mounting frame 1;

[0045] The first movable frame 2 is slidingly connected to the mounting frame 1;

[0046] The second movable frame 3 is slidingly connected to the mounting frame 1, and the first movable frame 2 is located above the second movable frame 3;

[0047] The battery support assembly 4 is used for placing the battery, and the positive pole of the battery faces upward and the negative pole faces downward;

[0048] The first probe assembly 5 is arranged on the first movable frame 2;

[0049] The second probe assembly 6 is arranged on the second movable frame 3;

[0050] The movable frame driving assembly 7 is fixedly installed on one of the first movable frame 2 and the second movable frame 3, and the output end of the movable frame driving assembly 7 is connected to the other one. When the movable frame driving assembly 7 is in the stretched state, the movable frame driving assembly 7 can drive the first movable frame 2 and the second movable frame 3 to move away in the vertical direction. When the movable frame driving assembly 7 is in the contracted state, the movable frame driving assembly 7 can drive the first movable frame 2 and the second movable frame 3 to approach in the vertical direction, so that the first probe assembly 5 and the second probe assembly 6 contact the positive and negative poles of the battery.

[0051] In this way, the first probe assembly 5 and the second probe assembly 6 can be brought into contact with the positive and negative poles of the battery by driving the first movable frame 2 and the second movable frame 3 to move vertically towards each other by the movable frame driving assembly 7, so as to power the battery to test the voltage, current and temperature of the battery. The battery support assembly 4 and the battery are fixed, and only the movable frame is driven to move by the movable frame driving assembly 7. On the premise of ensuring the accurate contact between the positive and negative poles of the battery and the probe assemblies, the operation steps of pressing the positive and negative poles of the battery by the first probe assembly 5 and the second probe assembly 6 are simplified, and the battery is not easily damaged, thereby enhancing the stability and safety of the equipment.

[0052] It should be noted that the mounting frame 1, the first movable frame 2 and the second movable frame 3 can have any possible shape, which is not limited in the present embodiment.

[0053] It should be further noted that the movable frame driving assembly 7 can be any possible driving assembly capable of driving the first movable frame 2 and the second movable frame 3 to move linearly in the vertical direction by stretching and contracting, which is not limited in the present embodiment.

[0054] As an optional embodiment, in combination with Figure 1 and Figure 2 , the movable frame driving assembly 7 comprises a pneumatic cylinder 71, one of the first movable frame 2 and the second movable frame 3 is connected to the driving end 71a of the pneumatic cylinder 71, and the other is connected to the non-driving end 71b of the pneumatic cylinder 71. The pneumatic cylinder 71 can drive the first movable frame 2 to move vertically downwards so that the first probe assembly 5 is in contact with the positive pole of the battery. The pneumatic cylinder 71 can drive the second movable frame 3 to move vertically upwards so that the second probe assembly 6 is in contact with the negative pole of the battery.

[0055] Specifically, when the non-driving end 71b of the cylinder 71 is connected with the second movable frame 3 and the driving end 71a of the cylinder 71 is connected with the first movable frame 2, and the first probe assembly 5 and the second probe assembly 6 are not in contact with the positive and negative poles of the battery, the piston rod of the cylinder 71 retracts, and due to the gravity of the first movable frame 2, the first movable frame 2 will first move vertically downward until the first probe assembly 5 is in contact with the positive pole of the battery. At this time, since the first movable frame 2 above cannot continue to move downward, the second movable frame 3 will move vertically upward under the driving force of the retraction of the cylinder 71 until the second probe assembly 6 is in contact with the negative pole of the battery. When the piston rod of the cylinder 71 extends out of the cylinder barrel, due to the gravity of the second movable frame 3, the second movable frame 3 will first move vertically downward to a certain position until it cannot move downward, and at this time, the first movable frame 2 will move vertically upward under the driving force of the cylinder 71, so that the first probe assembly 5 and the second probe assembly 6 are both away from the positive and negative poles of the battery. When the non-driving end 71b of the cylinder 71 is connected with the first movable frame 2 and the driving end 71a of the cylinder 71 is connected with the second movable frame 3, then by the same reasoning, when the piston rod of the cylinder 71 retracts, the first movable frame 2 will first descend, and the second movable frame 3 will later ascend, and when the piston rod of the cylinder 71 extends out of the cylinder barrel, the second movable frame 3 will first descend, and the first movable frame 2 will later ascend.

[0056] In this way, through one cylinder 71, the first probe assembly 5 above can first contact the positive pole of the battery, and the second probe assembly 6 below can later contact the negative pole of the battery, which ensures that the current of the battery always flows from the positive pole to the negative pole, preventing the current from flowing in the opposite direction due to operational errors, which may cause abnormal chemical reactions inside the battery and increase the safety hazard. As a mature linear actuator, the cylinder 71 can directly convert electrical energy into linear motion, which simplifies the mechanical structure, reduces the number of transmission components, and may reduce maintenance costs and failure rates. Moreover, the response speed of the cylinder 71 is usually fast, and it can provide relatively precise position control, which helps to improve the efficiency and accuracy of the battery charge and discharge detection equipment 100 when detecting and sorting batteries.

[0057] In addition, compared with some other types of driving mechanisms, such as hydraulic cylinders, the cylinder 71 does not consume energy when not working, which helps to reduce the energy consumption of the equipment and reduce the risk of pollution. Therefore, using one cylinder 71 to drive the first probe assembly 5 and the second probe assembly 6 to move in the vertical direction can improve the performance of the battery charge and discharge detection equipment 100, including improving the response speed, accuracy, driving force, and automation level, while reducing maintenance costs and environmental pollution.

[0058] Alternatively, the movable frame and the mounting frame 1 can be directly attached by magnetic force, and the sliding of the movable frame on the mounting frame 1 can be realized by cooperating with the movable frame driving assembly 7, but this way is high in cost and will cause wear to the movable frame.Figure 1 And Figure 2 In this embodiment, the battery charging and discharging detection device 100 further comprises a guide 11, a first sliding piece 21 and a second sliding piece 31. The guide 11 is arranged on the mounting frame 1 and extends in the vertical direction. The first sliding piece 21 and the second sliding piece 31 are both slidingly connected to the guide 11. The first movable frame 2 is connected to the first sliding piece 21, and the second movable frame 3 is connected to the second sliding piece 31.

[0059] The guide 11 is a guide rail extending in the vertical direction, and the first sliding piece 21 and the second sliding piece 31 are sliding blocks. The sliding cooperation between the guide rail and the sliding blocks ensures the linearity and stability of the movement of the first movable frame 2 and the second movable frame 3 in the vertical direction, reduces the deviation and shaking during movement, improves the reliability of the capacity distribution process, reduces the friction between the movable frame and the mounting frame 1, reduces wear and tear, prolongs the service life of the device, and enhances the structural stability and operational safety of the entire device. The vertical arrangement of the guide rail guides the movement of the movable frame along the predetermined trajectory, ensuring that the first probe assembly 5 and the second probe assembly 6 accurately contact the positive and negative electrodes of the battery, improving the accuracy and consistency of the capacity distribution. Moreover, the adjustment and maintenance of the guide rail and the sliding block are relatively easy, without the need for complex disassembly process, reducing the difficulty and time cost of device maintenance.

[0060] In some optional embodiments, in combination with Figure 1 And Figure 2 The battery charging and discharging detection device 100 further comprises a positioning piece 8 arranged on the mounting frame 1. When the first movable frame 2 moves downward in the vertical direction to contact the positive electrode of the battery with the first probe assembly 5, the first movable frame 2 and the positioning piece 8 abut. When the second movable frame 3 moves upward in the vertical direction to contact the negative electrode of the battery with the second probe assembly 6, the second movable frame 3 and the positioning piece 8 abut.

[0061] The positioning member 8 can ensure that the first movable frame 2 and the second movable frame 3 stop accurately when moving to a specific position, thereby ensuring the accuracy of the contact between the first probe assembly 5 and the second probe assembly 6 and the positive and negative poles of the battery. Such accurate positioning reduces the risk of poor contact and improves the reliability and repeatability of the capacity test process. After the first probe assembly 5 contacts the positive pole of the battery, the positioning member 8 can stop the first movable frame 2 from continuing to move vertically downward, and after the second probe assembly 6 contacts the negative pole of the battery, the positioning member 8 can stop the second movable frame 3 from continuing to move vertically upward, accurately positioning the contact points between the first probe assembly 5 and the second probe assembly 6 and the positive and negative poles of the battery. This reduces the positioning time before the capacity test, improves the efficiency of the battery capacity test, avoids hard contact between the probe assemblies and other parts of the battery or the device caused by excessive movement of the first movable frame 2 and the second movable frame 3, reduces damage caused by mechanical impact, protects the battery and the probe assemblies, and also reduces safety hazards caused by improper operation or device failure, improving the safety of the operator and the device.

[0062] It can be understood that the positioning member 8 can be of any possible shape, which is not limited in the embodiment.

[0063] In some embodiments, the first movable frame 2 and the second movable frame 3 are connected to the first adjusting member 23 and the second adjusting member 33, respectively. Figure 2 and Figure 3 , Figure 3 The first movable frame 2 and the second movable frame 3 are connected to the first adjusting member 23 and the second adjusting member 33, respectively. Figure 2 The battery charge and discharge detection device 100 further comprises a first adjusting member 23 and a second adjusting member 33. The first movable frame 2 is provided with a first extension 22, which is arranged in correspondence with the positioning member 8 in the vertical direction. The first extension 22 is provided with a first adjusting hole 22a in the vertical direction. The first adjusting member 23 is movably connected to the first extension 22 through the first adjusting hole 22a, so as to adjust the length of the first adjusting member 23 protruding from the lower surface of the first extension 22, so that the lower end of the first adjusting member 23 abuts against the positioning member 8 when the first probe assembly 5 contacts the positive pole of the battery. The second movable frame 3 is provided with a second extension 32, which is arranged in correspondence with the positioning member 8 in the vertical direction. The second extension 32 is provided with a second adjusting hole 32a in the vertical direction. The second adjusting member 33 is movably connected to the second extension 32 through the second adjusting hole 32a, so as to adjust the length of the second adjusting member 33 protruding from the upper surface of the second extension 32, so that the upper end of the second adjusting member 33 abuts against the positioning member 8 when the second probe assembly 6 contacts the negative pole of the battery.

[0064] In this way, the length of the first adjusting member 23 extending out of the lower surface of the first extension 22 and the length of the second adjusting member 33 extending out of the second extension 32 can be adjusted according to the different lengths of the battery in the vertical direction, and then the minimum distance between the first probe assembly 5 and the second probe assembly 6 in the vertical direction is matched with the distance between the positive and negative electrodes of the battery, so that when the first adjusting member 23 abuts against the positioning member 8, the first probe assembly 5 just contacts the positive electrode of the battery, and when the second adjusting member 33 abuts against the positioning member 8, the second probe assembly 6 just contacts the negative electrode of the battery. Therefore, the battery charging and discharging detection device 100 can adapt to batteries of different models and sizes, improve the flexibility and application range of the device, avoid mechanical damage to the battery or the probe assembly caused by excessive pressure, prolong the service life of the device, reduce the possibility of unnecessary mechanical stress and poor contact, improve the safety during operation, and reduce the risk of injury to the operator.

[0065] It can be understood that there are various ways to cooperate the adjusting member and the extension. In a first possible implementation, the two can be connected through snap fit, and then the length of the adjusting member extending out of the extension is adjusted, which is simple in design. In a second possible implementation, the adjusting member and the extension are connected through threads, which are more closely matched. The present embodiment does not limit this.

[0066] As an optional implementation, in combination with Figure 3 , the first adjusting member 23 and the second adjusting member 33 are both screws, the first adjusting hole 22a is provided with a first thread (not shown in the figure), the screw rod of the first adjusting member 23 is threadedly connected with the first adjusting hole 22a, and the second adjusting hole 32a is provided with a second thread (not shown in the figure), and the screw rod of the second adjusting member 33 is threadedly connected with the second adjusting hole 32a.

[0067] Through the cooperation of the screw and the threaded hole, the adjusting member can be finely adjusted in the adjusting hole, so as to finely adjust the minimum distance between the first probe assembly 5 and the second probe assembly 6 in the vertical direction, improve the accuracy of the cooperation between the probe assembly and the battery, the threaded connection provides good fastening, ensures that the adjusted state can be stably maintained, and will not be loosened automatically due to equipment vibration or temperature change, improves the stability and reliability of the equipment, and the operator can conveniently finely adjust the length of the adjusting member extending out of the adjusting hole by turning the first adjusting member 23 and the second adjusting member 33, simplifies the maintenance process. Moreover, the screw is a common standard part, which is relatively low in cost, easy to obtain and replace, reduces the initial cost and subsequent maintenance cost of the equipment.

[0068] In combination with Figure 1 and Figure 2The battery charging and discharging detection device 100 further comprises a first limiting block 111 and a second limiting block 112, both of which are arranged on the mounting frame 1. The first limiting block 111 is arranged close to the upper end of the guide piece 11, and the second limiting block 112 is arranged close to the lower end of the guide piece 11. When the first movable frame 2 moves vertically upward to be close to the upper end of the guide piece 11, the first sliding piece 21 can abut against the first limiting block 111. When the second movable frame 3 moves vertically downward to be close to the lower end of the guide piece 3, the second sliding piece 31 can abut against the second limiting block 112.

[0069] In this way, the arrangement of the first limiting block 111 and the second limiting block 112 ensures that the first movable frame 2 and the second movable frame 3 can be accurately stopped when reaching the limit position, effectively preventing the first movable frame 2 and the second movable frame 3 from overshooting due to the out-of-control or improper operation of the movable frame driving assembly 7, avoiding the movable frame from being separated from the guide piece 11, protecting the structural integrity of the device, and prolonging the service life of the device. The structure is simple, the movement range of the movable frame is controlled through physical limiting, the requirement for accurate control of the driving system is reduced, the complexity of the control system is simplified, and the control difficulty and cost are reduced.

[0070] It can be understood that the first limiting block 111 and the second limiting block 112 can be any possible shape, which is not limited in the embodiment.

[0071] In some optional embodiments, in combination with Figure 1 and Figure 2 The first probe assembly 5 comprises a plurality of first probe rows 51, each of which is fixedly arranged on the first movable frame 2 and extends along the first horizontal direction X. The plurality of first probe rows 51 are arranged in sequence along the second horizontal direction Y, and the second horizontal direction Y is perpendicular to the first horizontal direction X. The second probe assembly 6 comprises a plurality of second probe rows 61, each of which is fixedly arranged on the second movable frame 3 and extends along the first horizontal direction X. The plurality of second probe rows 61 are arranged in sequence along the second horizontal direction Y, and each second probe row 61 is arranged in correspondence with each first probe row 51 in the vertical direction.

[0072] By arranging a plurality of probe rows parallel along the second horizontal direction Y, each probe row extending along the first horizontal direction X comprises a plurality of probes, so that a plurality of groups of batteries can be measured at the same time, effectively improving the battery capacity distribution efficiency. If a probe row fails, the damaged part can be replaced individually without replacing the entire probe assembly, reducing maintenance cost and time.

[0073] In combination with Figure 1 and Figure 2The first movable frame 2 comprises a first bearing frame 24 and a first connecting plate 25, the first connecting plate 25 is slidingly connected to the mounting frame 1, the first bearing frame 24 is fixedly connected to the first connecting plate 25, and the first probe row 51 is fixedly arranged on the first bearing frame 24; the second movable frame 3 comprises a second bearing frame 34 and a second connecting plate 35, the second connecting plate 35 is slidingly connected to the mounting frame 1, the second bearing frame 34 is fixedly connected to the second connecting plate 35, and the second probe row 61 is fixedly arranged on the second bearing frame 34.

[0074] In this way, the connecting plate is connected with the sliding member, the length direction of the connecting plate is arranged along the vertical direction, the bearing frame is connected with the connecting plate, the probe row is fixed on the bearing frame, a stable structure is formed, the mechanical strength and stability of the whole probe assembly are improved, the vibration and the like caused by the movement of the first sliding member 21 and the second sliding member 31 along the vertical direction is reduced, the deformation or damage of the movable frame structure is avoided, and it is ensured that the probe assembly can move along the vertical direction more stably.

[0075] As an optional implementation, in combination with Figure 2 The battery support assembly 4 comprises a fixed frame 41, and the battery module 42 is arranged on the fixed frame 41. The fixed frame 41 can avoid the movement path of the first movable frame 2 and the second movable frame 3 along the vertical direction in the first horizontal direction X. Specifically, the battery support assembly 4 comprises a first fixed frame (not shown in the figure) and a second fixed frame (not shown in the figure), and the first fixed frame and the second fixed frame are arranged at the two ends of the base (not shown in the figure) along the first horizontal direction X, that is, on the two sides of the first movable frame 2 and the second movable frame 3 along the first horizontal direction X, and the battery module 42 is arranged on the first fixed frame and the second fixed frame. In this way, when the first movable frame 2 and the second movable frame 3 move up and down along the vertical direction, the fixed frame 41 supporting the battery module 42 will not hinder the movement thereof.

[0076] In some optional implementations, the battery module 42 comprises a battery tray 421 and a battery, the battery tray 421 is arranged on the fixed frame 41, the top of the battery tray 421 is provided with an opening (not shown in the figure) to enable the first probe row 51 to pass through the opening and contact the positive electrode of the battery, and the bottom of the battery tray 421 is provided with an avoiding hole (not shown in the figure) to enable the second probe row 61 to pass through the avoiding hole and contact the negative electrode of the battery. In this way, it is ensured that the first probe row 51 and the second probe row 61 can stably contact the positive electrode and the negative electrode of the battery, and the safety of the operation of the equipment is improved.

[0077] When the battery charging and discharging detection equipment 100 operates, in combination with Figure 1 and Figure 2, assuming that the non-driving end 71b of the cylinder 71 is connected with the second movable frame 3 and the driving end 71a of the cylinder 71 is connected with the first movable frame 2, first adjust the length of the first adjusting member 23 extending out of the lower surface of the first extension 22 and the length of the second adjusting member 33 extending out of the second extension 32 according to the different length of the battery in the vertical direction, at this time the first probe assembly 5 and the second probe assembly 6 are not in contact with the positive and negative poles of the battery, the piston rod of the cylinder 71 is retracted, due to the gravity of the first movable frame 2, the first movable frame 2 will move vertically downward first until the first probe assembly 5 is in contact with the positive pole of the battery, at this time the lower end of the first adjusting member 23 is in abutment with the positioning member 8, the first movable frame 2 cannot continue to move downward, so at this time the second movable frame 3 will move vertically upward under the driving force of the retraction of the cylinder 71 until the second probe assembly 6 is in contact with the negative pole of the battery, at this time the upper end of the second adjusting member 33 is in abutment with the positioning member 8; when the piston rod of the cylinder 71 extends out of the cylinder barrel, due to the gravity of the second movable frame 3, the second movable frame 3 will move vertically downward first until the second sliding member 31 is in abutment with the second limiting block 112, at this time the first movable frame 2 will move vertically upward under the driving force of the cylinder 71 until the first sliding member 21 is in abutment with the first limiting block 111, at this time the first probe assembly 5 and the second probe assembly 6 are both away from the positive and negative poles of the battery, so as to carry out the next operation.

[0078] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery charge and discharge detection device for charging and discharging a battery, characterized in that: include: Mounting rack; a first movable frame, the first movable frame being slidably connected to the mounting frame; a second movable frame, the second movable frame being slidably connected to the mounting frame, and the first movable frame being located above the second movable frame; A battery support assembly, the battery support assembly is used to support the battery module; a first probe assembly, wherein the first probe assembly is disposed on the first movable frame; a second probe assembly, the second probe assembly being disposed on the second movable frame; A movable frame driving assembly, wherein the movable frame driving assembly is fixedly mounted on one of the first movable frame and the second movable frame, and the output end of the movable frame driving assembly is connected to the other one. When the movable frame driving assembly is in an extended state, the movable frame driving assembly can drive the first movable frame and the second movable frame to move away from each other in a vertical direction. When the movable frame driving assembly is in a contracted state, the movable frame driving assembly can drive the first movable frame and the second movable frame to move closer together in a vertical direction so that the first probe assembly and the second probe assembly contact the positive and negative poles of the battery.

2. The battery charge and discharge detection device according to claim 1, characterized in that: The movable frame driving assembly includes a cylinder, one of the first movable frame and the second movable frame is connected to the driving end of the cylinder, and the other is connected to the non-driving end of the cylinder. The cylinder can drive the first movable frame to move vertically downward so that the first probe assembly contacts the positive pole of the battery, and the cylinder can drive the second movable frame to move vertically upward so that the second probe assembly contacts the negative pole of the battery.

3. The battery charge and discharge detection device according to claim 2, characterized in that: The battery charge and discharge detection equipment also includes a guide member, a first sliding member and a second sliding member. The guide member is arranged on the mounting frame, and the guide member is arranged in a vertical direction. The first sliding member and the second sliding member are both slidably connected to the guide member. The first movable frame is connected to the first sliding member, and the second movable frame is connected to the second sliding member.

4. The battery charge and discharge detection device according to any one of claims 1 to 3, characterized in that: The battery charge and discharge detection equipment also includes a positioning member, which is arranged on the mounting frame so that when the first movable frame moves downward in the vertical direction until the first probe assembly contacts the positive pole of the battery, the first movable frame and the positioning member abut against each other, and when the second movable frame moves upward in the vertical direction until the second probe assembly contacts the negative pole of the battery, the second movable frame and the positioning member abut against each other.

5. The battery charge and discharge detection device according to claim 4, characterized in that: The battery charge and discharge detection device further includes a first adjusting member and a second adjusting member. The first movable frame is provided with a first extension portion, the first extension portion is arranged to correspond to the positioning member in the vertical direction, and a first adjusting hole is provided in the first extension portion along the vertical direction. The first adjusting member is movably connected to the first extension portion through the first adjusting hole to adjust the length of the first adjusting member extending from the lower surface of the first extension portion, so that when the first probe assembly contacts the positive electrode of the battery, the lower end of the first adjusting member abuts against the positioning member; A second extension portion is provided on the second movable frame, and the second extension portion is arranged corresponding to the positioning member in the vertical direction. A second adjustment hole is provided in the second extension portion along the vertical direction. The second adjustment member can be movably connected to the second extension portion through the second adjustment hole to adjust the length of the second adjustment member extending out of the upper surface of the second extension portion, so that when the second probe assembly contacts the negative pole of the battery, the upper end of the second adjustment member abuts against the positioning member.

6. The battery charge and discharge detection device according to claim 5, characterized in that: The first adjusting member and the second adjusting member are both screws, a first thread is provided in the first adjusting hole, the screw of the first adjusting member is threadedly connected to the first adjusting hole, a second thread is provided in the second adjusting hole, the screw of the second adjusting member is threadedly connected to the second adjusting hole.

7. The battery charge and discharge detection device according to claim 3, characterized in that: The battery charge and discharge detection equipment also includes a first limit block and a second limit block, and the first limit block and the second limit block are both arranged on the mounting frame, the first limit block is arranged close to the upper end of the guide member, and the second limit block is arranged close to the lower end of the guide member, so that when the first movable frame moves vertically upward to close to the upper end of the guide member, the first sliding member can abut against the first limit block, and when the second movable frame moves vertically downward to close to the lower end of the second movable frame, the second sliding member can abut against the second limit block.

8. The battery charge and discharge detection device according to claim 1, characterized in that: The first probe assembly includes a plurality of first probe rows, each of which is fixedly disposed on the first movable frame and extends along a first horizontal direction. The plurality of first probe rows are sequentially disposed along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. The second probe assembly includes a second probe row, and there are multiple second probe rows. Each second probe row is fixed on the second movable frame, and each second probe row extends along the first horizontal direction. Multiple second probe rows are arranged in sequence along the second horizontal direction, and each second probe row is arranged corresponding to each first probe row in the vertical direction.

9. The battery charge and discharge detection device according to claim 8, characterized in that: The first movable frame includes a first supporting frame and a first connecting plate, the first connecting plate is slidably connected to the mounting frame, the first supporting frame is fixedly connected to the first connecting plate, and the first probe row is fixedly arranged on the first supporting frame; The second movable frame includes a second supporting frame and a second connecting plate. The second connecting plate is slidably connected to the mounting frame. The second supporting frame is fixedly connected to the second connecting plate. The second probe row is fixedly arranged on the second supporting frame.

10. The battery charge and discharge detection device according to claim 9, characterized in that: The battery support assembly includes a fixing frame, the battery module is arranged on the fixing frame, and the fixing frame can avoid the moving paths of the first movable frame and the second movable frame along the vertical direction in the first horizontal direction.

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