Testing device

Abstract

The utility model belongs to the technical field of battery testing, and discloses a testing device. The testing device is used for battery testing and comprises a base, a testing assembly, a protective cover and a locking mechanism, the base is used for bearing the three-electrode battery; the test assembly is arranged on the base, and the test assembly can be electrically connected with the electrodes of the battery respectively; the protective cover can be arranged on the base in a covering manner; the locking mechanism is arranged on one of the protective cover and the base, and the locking mechanism is detachably connected with the other one of the protective cover and the base. The protection cover can protect the testing assembly when the testing device is not used, elements on the wet base can be protected, damage caused by dust falling or external force and other factors is prevented, and therefore the service life of the testing device is prolonged.

Description

Technical Field

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

[0002] Batteries include two-electrode batteries and three-electrode batteries. Three-electrode batteries are batteries used in the study of electrochemical reaction processes and have very wide applications in the fields of electrochemical analysis and electrochemical energy storage. The three parts that make up a three-electrode battery include a working electrode (i.e., the positive electrode), an auxiliary electrode (i.e., the negative electrode), and a reference electrode. By charging and discharging between the working electrode and the auxiliary electrode and detecting the voltage curves among the working electrode, the auxiliary electrode, and the reference electrode, the material properties of each electrode can be obtained.

[0003] In the existing testing devices, the testing components and the fixing mechanism for three-electrode or two-electrode batteries are integrated on the testing base, so that the detection environment is regular and convenient for users to manage. However, the testing components are directly exposed, and when not in use, the testing components on the base cannot be protected, which is not conducive to long-term use. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a testing device that can protect the testing components when not in use, which is beneficial to the long-term use of the testing device.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A testing device for battery testing, the testing device includes:

[0007] A base for carrying a battery;

[0008] Testing components arranged on the base, and the testing components can be electrically connected to the electrodes of the battery respectively;

[0009] A protective cover that can cover the base;

[0010] A locking mechanism arranged on one of the protective cover and the base, and the locking mechanism is detachably connected to the other of the protective cover and the base.

[0011] As an optional solution of the above testing device, the protective cover is rotatably connected to the base to switch between an open position and a closed position, and the locking mechanism is used to fix the protective cover at the closed position.

[0012] As an optional solution of the above testing device, one end of the protective cover is rotatably connected to the base, and the opposite end of the protective cover can be connected to the base through the locking mechanism.

[0013] As an alternative to the above test device, the locking mechanism includes:

[0014] A trigger member rotatably disposed on one of the base and the protective cover, with at least a part of the trigger member located outside the base and the protective cover;

[0015] A locking member connected to the trigger member, and a locking groove is provided on the other of the protective cover and the base, and the locking member can be inserted into the locking groove.

[0016] As an alternative to the above test device, one of the top surface of the base and the bottom surface of the protective cover is provided with a first installation groove, and a through hole communicating with the first installation groove is provided on the side, and the other is provided with a second installation groove, and the second installation groove can communicate with the first installation groove;

[0017] One end of the trigger member is located in the first installation groove, the other end of the trigger member passes through the through hole, and the locking groove is provided in the second installation groove.

[0018] As an alternative to the above test device, the locking mechanism further includes an anti-misoperation component that can restrict the rotation of the trigger member;

[0019] The anti-misoperation component includes:

[0020] At least two anti-rotation members arranged circumferentially around the trigger member, a positioning groove is provided on the base or the protective cover, the anti-rotation members are slidably connected to the trigger member and can extend into the positioning groove;

[0021] A pulling member connecting the anti-rotation members;

[0022] A first elastic member for driving the anti-rotation members to move in the direction of extending into the positioning groove.

[0023] As an alternative to the above test device, the trigger member includes a rotating shaft and a rotating part connected to the rotating shaft, the locking member is connected to the rotating shaft, the rotating part is located outside the base and the protective cover, and the anti-rotation members slidably pass through the rotating part;

[0024] And / or, one end of the first elastic member is connected to or abuts against the trigger member, and the other end of the first elastic member is connected to or abuts against the anti-rotation members;

[0025] And / or, the anti-rotation member includes a rod portion and a limiting portion protruding radially from the rod portion. One end of the rod portion can extend into the positioning groove, the other end of the rod portion is connected to the pulling member, and the limiting portion can abut against the base or the protective cover to restrict the length of the rod portion extending into the positioning groove;

[0026] And / or, at least two of the anti-rotation members are evenly spaced circumferentially around the trigger member.

[0027] As an alternative embodiment of the above test device, the base is provided with a fixing position for carrying the battery;

[0028] The test device further includes a positioning mechanism connected to the test assembly. The positioning mechanism is slidably disposed on the base to adjust the distance between the test assembly and the fixing position.

[0029] As an alternative embodiment of the above test device, the positioning mechanism includes:

[0030] A moving member slidably connected to the base, and the test assembly is disposed on the moving member;

[0031] An elastic protrusion connected to the moving member. A plurality of grooves are spaced along the arrangement direction of the moving member and the fixing position on the base, and the elastic protrusion can be snapped into any one of the grooves.

[0032] As an alternative embodiment of the above test device, the elastic protrusion is made of an elastic material;

[0033] Or, the elastic protrusion includes a second elastic member and a protrusion portion, and the second elastic member connects the protrusion portion and the moving member;

[0034] Or, the elastic protrusion includes a second elastic member, a protrusion portion and a telescopic rod. One end of the telescopic rod is connected to the moving member, the other end is connected to the protrusion portion, the second elastic member is sleeved on the telescopic rod, one end of the second elastic member abuts or connects the telescopic rod, and the other end abuts or connects the protrusion portion.

[0035] As an alternative embodiment of the above test device, the number of the elastic protrusions is set to be plural, and the plural elastic protrusions are arranged in a straight line, and the arrangement direction is perpendicular to the sliding direction of the moving member;

[0036] And / or, the base is provided with a sliding groove, the moving member is slidably disposed in the sliding groove, the sliding groove extends to the side wall of the base to form a long hole, and one end of the moving member is connected with a handle, and the handle passes through the long hole to extend out of the base.

[0037] As an alternative embodiment of the above test device, the test device further includes a clamping mechanism disposed on the base for fixing the battery.

[0038] As an alternative embodiment of the above test device, the clamping mechanism includes:

[0039] Two oppositely arranged clamping parts;

[0040] Two sliding members, each clamping part is connected to a sliding member, and the sliding member is slidably connected to the base to drive the two clamping parts to approach or separate from each other.

[0041] A turntable rotatably connected to the base;

[0042] Two connecting rods, one end of each connecting rod is rotatably connected to the turntable, and the other end is rotatably connected to the sliding member;

[0043] A transmission assembly connected to the turntable for driving the turntable to rotate.

[0044] As an alternative embodiment of the above test device, an installation cavity is provided in the base, and an avoidance hole communicating with the installation cavity is provided on the top surface of the base. The transmission assembly, the turntable, the sliding member, and the connecting rod are all located in the installation cavity, and the sliding member passes through the avoidance hole to connect the clamping part.

[0045] As an alternative embodiment of the above test device, the transmission assembly includes:

[0046] An operating member located outside the base;

[0047] A rotating shaft, one end of which is connected to the operating member, and the other end extends into the base;

[0048] A first bevel gear connected to the other end of the rotating shaft;

[0049] A second bevel gear coaxially fixed to the turntable, and the second bevel gear meshes with the first bevel gear.

[0050] Advantages of the present utility model:

[0051] In the test device provided by the present utility model, the protective cover can be covered on the base, and the fixing of the protective cover and the base is achieved through the locking mechanism, so as to protect the test components when the test device is not in use, and can protect the components on the damp base, prevent dust from falling or being damaged due to external forces and other factors, thereby increasing the service life of the test device. Description of the Drawings

[0052] Figure 1It is a schematic structural diagram of the testing device provided by the present utility model;

[0053] Figure 2 It is a sectional view of the testing device provided by the present utility model;

[0054] Figure 3 It is a schematic partial structure diagram of the locking mechanism provided by the present utility model;

[0055] Figure 4 It is Figure 2 The partial enlarged view at position B in

[0056] Figure 5 It is Figure 1 The partial enlarged view at position A in

[0057] Figure 6 It is Figure 2 The partial enlarged view at position C in

[0058] Figure 7 It is a sectional view of the base and the clamping mechanism provided by the present utility model;

[0059] Figure 8 It is a schematic structural diagram of the base and the clamping mechanism provided by the present utility model.

[0060] In the figure:

[0061] 10. Base; 11. Sliding groove; 12. Groove; 13. First installation groove; 141. Upper cavity; 142. Lower cavity; 20. Protection cover; 21. Handle; 22. Second installation groove; 23. Locking groove; 30. Locking mechanism; 31. Locking member; 311. Locking part; 312. Connecting part; 32. Triggering member; 321. Rotating shaft; 322. Rotating part; 33. Anti-misoperation component; 331. Anti-rotation member; 3311. Rod part; 3312. Limiting part; 332. First elastic member; 333. Pulling member; 40. Positioning mechanism; 41. Moving member; 42. Elastic protrusion; 421. Protrusion part; 422. Second elastic member; 423. Telescopic rod; 4231. Outer rod; 4232. Inner rod; 43. Handle; 51. Clamping part; 52. Sliding member; 53. Turntable; 54. Connecting rod; 55. Transmission component; 551. Operating member; 552. Rotating shaft; 553. First bevel gear; 554. Second bevel gear; 56. Sliding rod; 60. Testing component. Specific embodiments

[0062] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0063] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0064] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0065] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0066] This embodiment provides a testing device, which can be used to test two-electrode batteries or three-electrode batteries. In this embodiment, taking the test of a three-electrode battery as an example for illustration. Among them, the three-electrode battery includes a working electrode, an auxiliary electrode, and a reference electrode. The testing device can charge and discharge between the working electrode and the auxiliary electrode, detect the voltage curves among the working electrode, the auxiliary electrode, and the reference electrode, so as to obtain the material properties of each electrode.

[0067] Such as Figure 1 and Figure 2As shown in the figure, the test device includes a base 10, a test component 60, and a protective cover 20. The base 10 is used to carry the three-electrode battery to be tested. The test component 60 is arranged on the base 10. The test component 60 can be electrically connected to the working electrode, the auxiliary electrode, and the reference electrode respectively to perform charge and discharge and obtain the voltage curves between the working electrode, the auxiliary electrode, and the reference electrode. The protective cover 20 can cover the base 10 and is fixed to the base 10 through a locking mechanism 30, so as to protect the test component 60 when the test device is not in use, protect the components on the damp base 10, prevent dust from falling or damage caused by external forces and other factors, thereby increasing the service life of the test device.

[0068] It should be noted here that the test component 60 is an existing technology in the art and will not be specifically introduced in this embodiment.

[0069] In this embodiment, the locking mechanism 30 is arranged on the base 10. The locking mechanism 30 can be detachably connected to the protective cover 20, so as to conveniently fix or unlock the protective cover 20 and the base 10 as needed, enabling the protective cover 20 to freely switch between the open position and the closed position.

[0070] In other embodiments, the locking mechanism 30 can also be arranged on the protective cover 20. Correspondingly, the locking mechanism 30 can be detachably connected to the base 10, so as to conveniently fix or unlock the protective cover 20 and the base 10 as needed.

[0071] In this embodiment, the protective cover 20 is rotatably connected to the base 10. The locking mechanism 30 can fix the protective cover 20 in the closed position, that is, the protective cover 20 covers the outside of the test component 60 to prevent the test component 60 from being exposed. The protective cover 20 is rotatably connected to the base 10, and the position of the protective cover 20 is switched by rotating the protective cover 20, which is convenient to operate.

[0072] Specifically, one end of the protective cover 20 is rotatably connected to the base 10, and the other end of the protective cover 20 can be detachably connected to the locking mechanism 30. The rotating end and the fixed end of the protective cover 20 are arranged opposite to each other, which is beneficial to improving the fixing effect of the protective cover 20 and the base 10, and is beneficial to the protective cover 20 fully covering the upper part of the base 10, thereby protecting the test component 60.

[0073] Optionally, the protective cover 20 and the base 10 can be rotatably connected through a hinge.

[0074] Optionally, a handle 21 is arranged on the protective cover 20, which is convenient for the tester to rotate the protective cover 20 through the handle 21 for convenient operation.

[0075] In other embodiments, the protective cover 20 may not be connected to the base 10. When the testing device is not in use, the protective cover 20 can be directly buckled onto the base 10 from above and then fixed to the base 10 through the locking mechanism 30. Optionally, at least two locking mechanisms 30 may be provided to increase the connection positions between the protective cover 20 and the base 10 and improve the fixing effect of the protective cover 20.

[0076] As Figure 3 shown, the locking mechanism 30 includes a trigger member 32 and a locking member 31. The trigger member 32 is rotatably arranged on the base 10, and at least part of the trigger member 32 is located outside the base 10 for the convenience of testers to touch. The locking member 31 is connected to the trigger member 32. A locking groove 23 is provided on the protective cover 20. The locking member 31 can be driven by the trigger member 32 to insert into the locking groove 23, thereby locking the protective cover 20 and the base 10. The structure is simple and the operation is convenient.

[0077] When it is necessary to fix the protective cover 20 to the base 10, the tester can rotate the trigger member 32. The rotation of the trigger member 32 drives the locking member 31 to move, so that the locking member 31 is inserted into the locking groove 23, thereby locking the base 10 and the protective cover 20. When it is necessary to open the protective cover 20, the tester can rotate the trigger member 32 in the reverse direction. The trigger member 32 drives the locking member 31 to move in the reverse direction. After the locking member 31 disengages from the locking groove 23, the tester can rotate the protective cover 20 to expose the test assembly 60.

[0078] It can be understood that to ensure the fixing effect, the direction in which the locking member 31 inserts into the locking groove 23 is set at an angle to the vertical direction, so that the locking member 31 cooperating with the locking groove 23 can exert a force in the vertical direction on the protective cover 20, thereby achieving the purpose of locking the protective cover 20 and the base 10.

[0079] In this embodiment, the locking groove 23 extends in a substantially horizontal direction, so that when the protective cover 20 is rotated, the force exerted by the locking member 31 on the protective cover 20 generally extends in the vertical direction to prevent the protective cover 20 from rotating.

[0080] To facilitate the cooperation between the locking member 31 and the locking groove 23, the size of the notch end of the locking groove 23 is larger to ensure the smooth insertion of the locking member 31. Exemplarily, the notch of the locking groove 23 is trumpet-shaped, or at least the size of the notch of the locking groove 23 is larger than the corresponding size of the locking member 31.

[0081] As Figure 3As shown in the figure, a first mounting groove 13 is provided on the top surface of the base 10, and a through hole communicating with the first mounting groove 13 is provided on the side of the base 10; a second mounting groove 22 is provided on the bottom surface of the protective cover 20. When the protective cover 20 covers the base 10, the first mounting groove 13 and the second mounting groove 22 are aligned and communicate with each other. One end of the trigger member 32 is located in the first mounting groove 13, and the other end of the trigger member 32 passes through the through hole to extend outside the base 10; a locking groove 23 is provided in the second mounting groove 22. One end of the locking member 31 is connected to the trigger member 32, and the other end can extend into the second mounting groove 22 so that the locking member 31 can be inserted into the locking groove 23. In some embodiments, the first mounting groove 13 may be located on the protective cover 20. Correspondingly, the second mounting groove 22 is located on the base 10.

[0082] In this embodiment, by placing part of the locking mechanism 30 in the first mounting groove 13 and the second mounting groove 22, most of the structure of the locking mechanism 30 can be hidden to protect the locking mechanism 30 and ensure the reliability and service life of the locking mechanism 30.

[0083] Optionally, the locking member 31 includes a connecting portion 312 and a locking portion 311. The connecting portion 312 and the locking portion 311 are connected and generally form an inverted L shape to facilitate the insertion of the locking portion 311 into the locking groove 23.

[0084] As Figure 4 shown, the trigger member 32 includes a rotating shaft 321 and a rotating portion 322 connected to the rotating shaft 321. The rotating shaft 321 extends horizontally and is rotatably arranged in the first mounting groove 13. One end of the rotating shaft 321 extends outside the base 10 through the through hole. The connecting portion 312 of the locking member 31 is sleeved on the rotating shaft 321 and fixed to the rotating shaft 321 to rotate together with the rotating shaft 321; the rotating portion 322 is connected to one end of the rotating shaft 321 extending outside the base 10, and the rotating portion 322 is exposed, facilitating the tester to drive the rotating shaft 321 to rotate by rotating the rotating portion 322 to lock or unlock the protective cover 20 and the base 10.

[0085] Optionally, a bearing may be provided in the through hole. The rotating shaft 321 is inserted into the bearing and fixed to the inner ring of the bearing to provide a rotational support for the rotating shaft 321.

[0086] To enable the locking member 31 to maintain the state of being inserted into the locking groove 23 or the state of disengaging from the locking groove 23 and avoid the tester accidentally touching and changing the state of the locking member 31, the locking mechanism 30 further includes an anti-misoperation component 33. The anti-misoperation component 33 can restrict the rotation of the trigger member 32 to avoid accidental triggering.

[0087] Specifically, in combination with Figure 4 and Figure 5As shown, the anti-mis-touch assembly 33 includes a pulling member 333, a first elastic member 332 and at least two anti-rotation members 331. The at least two anti-rotation members 331 are arranged around the circumference of the trigger member 32, and a positioning groove is arranged on the base 10. The anti-rotation member 331 is slidably connected with the trigger member 32 and can be inserted into the positioning groove; the pulling member 333 is connected to the anti-rotation member 331, and the pulling member 333 is located on the side of the rotating member away from the trigger member 32; the first elastic member 332 is used to drive the anti-rotation member 331 to move in the direction of inserting into the positioning groove.

[0088] When the anti-trigger component is not subjected to external force, the anti-rotation part 331 is inserted into the corresponding positioning groove under the action of the first elastic part 332. Due to the cooperation between the anti-rotation part 331 and the positioning groove, the trigger part 32 is prevented from rotating, so that the trigger part 32 is in a state where it cannot rotate, so as to stably maintain the current state of the locking part 31.

[0089] When the state of the locking member 31 needs to be changed, the tester can pull the pulling member 333 to move the pulling member 333 away from the base 10. The pulling member 333 will drive the anti-rotation member 331 to disengage from the positioning groove, thereby releasing the constraint on the trigger member 32. At this time, the tester can rotate the trigger member 32 to change the state of the locking member 31.

[0090] In this embodiment, the anti-rotation member 331 is slidably disposed through the rotating portion 322 to make the structure more compact and facilitate simplification of the structure.

[0091] In order to make it easier for the anti-rotation part 331 to be inserted into the positioning groove after the tester releases the pulling part 333, at least two anti-rotation parts 331 are evenly spaced around the circumference of the trigger part 32, and at least two positioning grooves are evenly spaced around the through hole to ensure that after the trigger part 32 rotates a certain angle, each anti-rotation part 331 can be directly opposite to a positioning groove, so as to facilitate the cooperation between the anti-rotation part 331 and the positioning groove.

[0092] In this embodiment, the first elastic member 332, the rotating portion 322 and the pulling member 333 are arranged in sequence, one end of the first elastic member 332 is connected to or abuts the rotating portion 322, and the other end is connected to or abuts the anti-rotation member 331. The first elastic member 332 is always in a compressed state so as to provide force for the anti-rotation member 331 to be inserted into the positioning groove.

[0093] In other embodiments, the two ends of the first elastic member 332 can be respectively connected to the base 10 and the anti-rotation member 331, or the two ends of the first elastic member 332 can be respectively connected to the rotating part 322 and the pulling member 333, and the first elastic member 332 is a tension spring to provide force for the anti-rotation member 331 to be inserted into the positioning groove.

[0094] To limit the mating length between the anti-rotation member 331 and the positioning groove, the anti-rotation member 331 includes a rod portion 3311 and a limiting portion 3312 protruding radially along the rod portion 3311. One end of the rod portion 3311 can extend into the positioning groove, the other end of the rod portion 3311 is connected to a pulling member 333, and the limiting portion 3312 can abut against the base 10 to restrict the length of the rod portion 3311 extending into the positioning groove.

[0095] Optionally, the first elastic member 332 can abut against the limiting portion 3312 to ensure that the force applied by the first elastic member 332 to the anti-rotation member 331 is parallel to the rod portion 3311 of the anti-rotation member 331.

[0096] To facilitate adaptation to three-electrode batteries of different sizes, the base 10 is provided with a fixing position for carrying the three-electrode battery; the testing device further includes a positioning mechanism 40, the positioning mechanism 40 is connected to the testing component 60, and the positioning mechanism 40 is slidably arranged on the base 10 to adjust the distance between the testing component 60 and the fixing position. By adjusting the distance between the testing component 60 and the fixing position, on the one hand, when taking and placing the three-electrode battery, the distance between the testing component 60 and the fixing position can be increased, and the testing component 60 can avoid the three-electrode battery, facilitating taking and placing; on the other hand, the position of the testing component 60 can be adjusted according to the size of the three-electrode battery or the two-electrode battery to facilitate the electrical connection of the testing component 60 to the working electrode, the auxiliary electrode, and the reference battery respectively. When the tested battery is a two-electrode battery, the testing component 60 is electrically connected to the positive and negative electrodes of the two-electrode battery respectively.

[0097] To facilitate adjustment of the position of the testing component 60, as shown in Figure 1 and Figure 2 the positioning mechanism 40 includes a moving member 41 and an elastic protrusion 42. The moving member 41 is slidably connected to the base 10, and the testing component 60 is arranged on the moving member 41, so that the moving member 41 can drive the testing component 60 to approach or move away from the fixing position; the elastic protrusion 42 is connected to the moving member 41, and a plurality of grooves 12 are arranged at intervals on the base 10 along the arrangement direction of the moving member 41 and the fixing position, and the elastic protrusion 42 can be snapped into any one of the grooves 12.

[0098] When using the testing device, according to the size of the three-electrode battery, the moving member 41 can be slid so that the elastic protrusion 42 on the moving member 41 is snapped into the groove 12 with an appropriate distance from the fixing position. The position of the moving member 41 and the testing component 60 is fixed through the cooperation between the elastic protrusion 42 and the groove 12, facilitating testing. Since the elastic protrusion 42 has elasticity, during the process of the elastic protrusion 42 being snapped into the groove 12 or disengaging from the groove 12, only the force applied to the moving member 41 needs to be increased to achieve it, and there is an obvious feeling of jamming when the elastic protrusion 42 is snapped into the groove 12, which is convenient for the tester to know whether the positions of the moving member 41 and the testing component 60 are fixed properly.

[0099] As shown Figure 6 in the figure, the elastic protrusion 42 includes a second elastic member 422, a protrusion portion 421, and a telescopic rod 423. One end of the telescopic rod 423 is connected to the moving member 41, and the other end is connected to the protrusion portion 421. The second elastic member 422 is sleeved on the telescopic rod 423. One end of the second elastic member 422 abuts or is connected to the telescopic rod 423, and the other end abuts or is connected to the protrusion portion 421. The telescopic rod 423 can be telescoped under the elastic force of the second elastic member 422 to drive the protrusion portion 421 to move; the telescopic rod 423 can guide the second elastic member 422 to prevent the second elastic member 422 from being bent and deformed when stressed, ensure the accuracy of the direction of the elastic force provided by the second elastic member 422, and this kind of setting has a compact structure.

[0100] Optionally, the telescopic rod 423 includes an outer rod 4231 and an inner rod 4232 which are nested. The inner rod 4232 can slide relative to the outer rod 4231. The outer rod 4231 is connected to the moving member 41, and the inner rod 4232 is connected to the protrusion portion 421. The two ends of the second elastic member 422 respectively abut or are connected to the outer rod 4231 and the protrusion portion 421.

[0101] Optionally, the protrusion portion 421 can be hemispherical to facilitate the protrusion portion 421 to enter or exit the groove 12.

[0102] Optionally, the inner wall of the groove 12 can be an arc surface to facilitate the protrusion portion 421 to enter or exit the groove 12.

[0103] In some embodiments, the elastic protrusion 42 includes a second elastic member 422, a protrusion portion 421, and a guide rod. One end of the guide rod is slidably connected to the moving member 41, and the other end is connected to the protrusion portion 421. The second elastic member 422 is sleeved on the guide rod. One end of the second elastic member 422 abuts or is connected to the moving member 41, and the other end abuts or is connected to the guide rod or the protrusion portion 421. The guide rod can guide the second elastic member 422 to prevent the second elastic member 422 from being bent and deformed when stressed, ensure the accuracy of the direction of the elastic force provided by the second elastic member 422, and this kind of setting has a compact structure.

[0104] In some embodiments, the elastic protrusion 42 can be made of an elastic material, or the elastic protrusion 42 includes a second elastic member 422 and a protrusion portion 421. The second elastic member 422 connects the protrusion portion 421 and the moving member 41, that is, the guide rod can be not provided.

[0105] To improve the fixing effect of the moving part 41, the number of elastic protrusions 42 can be set to multiple. The multiple elastic protrusions 42 are arranged in a straight line, and the arrangement direction is perpendicular to the sliding direction of the moving part 41. Among them, each elastic protrusion 42 is correspondingly provided with a plurality of grooves 12 arranged in a straight line. The arrangement direction of the plurality of grooves 12 is the arrangement direction of the moving part 41 and the fixing position, so that the distance between each groove 12 and the fixing position is different.

[0106] To protect the positioning mechanism 40, a sliding groove 11 is provided in the base 10. The moving part 41 is slidably arranged in the sliding groove 11 to guide the moving direction of the moving part 41. The sliding groove 11 extends to the side wall of the base 10 to form a long hole. One end of the moving part 41 is connected with a handle 43, and the handle 43 passes through the long hole to extend outside the base 10, so that the tester can conveniently adjust the position of the moving part 41 by holding the handle 43.

[0107] As Figure 7 and Figure 8 shown, the testing device further includes a clamping mechanism. The clamping mechanism is arranged on the base 10 and is used to fix the three-electrode battery at the fixing position to facilitate the testing component 60 to test the three-electrode battery.

[0108] Specifically, the clamping mechanism includes a transmission component 55, a turntable 53, two relatively arranged clamping parts 51 and two connecting rods 54. Among them, the two clamping parts 51 can slide relative to the base 10 to approach or separate from each other. The turntable 53 is rotatably connected to the base 10. One end of the connecting rod 54 is rotatably connected to the turntable 53, and the other end is rotatably connected to the clamping part 51. The transmission component 55 is connected to the turntable 53 and is used to drive the turntable 53 to rotate. When the turntable 53 rotates, the turntable 53 and the connecting rod 54 rotate relative to each other, and the connecting position of the connecting rod 54 and the turntable 53 makes a circular motion, driving the connecting rod 54 to move. Since the clamping part 51 can only slide relative to the base 10, the clamping part 51 and the connecting rod 54 will also rotate relative to each other, and the clamping part 51 is driven by the connecting rod 54 to slide relative to the base 10 to realize the approach or separation of the two clamping parts 51.

[0109] In this embodiment, the clamping part 51 and the connecting rod 54 are connected by a sliding part 52. The sliding part 52 is slidably connected to the base 10. The clamping part 51 is fixed on the sliding part 52, and the connecting rod 54 is rotatably connected to the sliding part 52. It can be understood that the turntable 53, the connecting rod 54 and the sliding part 52 form a crank-slider structure to convert the rotation of the turntable 53 into the sliding of the sliding part 52.

[0110] Optionally, a sliding rod 56 is provided on the base 10, and the sliding part 52 is slidably sleeved on the sliding rod 56 to restrict the sliding direction of the sliding part 52.

[0111] Specifically, the rotation point of the connecting rod 54 and the turntable 53 is eccentrically arranged relative to the rotation center of the turntable 53. To ensure the opposite or back-and-forth movement of the two sliding members 52, the two connecting rods 54 are symmetrically arranged relative to the rotation center of the turntable 53 to ensure the synchronization of the two sliding members 52.

[0112] To make the structure of the testing device more compact, an installation cavity is provided inside the base 10, and an avoidance hole communicating with the installation cavity is provided on the top surface of the base 10. The transmission assembly 55, the turntable 53, the sliding members 52, and the connecting rods 54 are all located inside the installation cavity, and the sliding members 52 pass through the avoidance hole to connect the clamping portions 51. By providing the installation cavity, the internal space of the base 10 can be fully utilized to hide most of the structures of the clamping mechanism, protect the clamping mechanism through the base 10 to avoid damage to the clamping mechanism, and also prevent the clamping mechanism from interfering with the testing assembly 60.

[0113] In this embodiment, the transmission assembly 55 includes an operating member 551, a rotating shaft 552, a first bevel gear 553, and a second bevel gear 554. The operating member 551 is located outside the base 10 for easy access by the tester; one end of the rotating shaft 552 is connected to the operating member 551, and the other end extends into the installation cavity; the first bevel gear 553 is connected to the other end of the rotating shaft 552; the second bevel gear 554 is coaxially fixed to the turntable 53, and the second bevel gear 554 meshes with the first bevel gear 553. When the tester rotates the operating member 551, the operating member 551 can drive the rotating shaft 552 to rotate, and drive the turntable 53 to rotate through the meshing of the first bevel gear 553 and the second bevel gear 554, so as to realize the approach or separation of the two clamping portions 51. The bevel gear transmission occupies a small space, which is beneficial to reducing the requirement for the height of the base 10, thereby reducing the size of the base 10; the bevel gear transmission can change the transmission direction, making the axis of the turntable 53 and the rotating shaft 552 perpendicular, which is beneficial to arranging the operating member 551 on the side of the base 10 for easy operation; by manually operating to control the clamping mechanism, it can avoid damaging the three-electrode battery due to excessive clamping force.

[0114] In some embodiments, the rotating shaft 552 can be connected to a motor to realize the electric drive of the transmission assembly 55, replacing manual operation and reducing the operation intensity of the tester.

[0115] In some embodiments, the operating member 551, the first bevel gear 553, and the second bevel gear 554 can also be directly replaced by a motor.

[0116] In some embodiments, the turntable 53, the connecting rod 54, the first bevel gear 553, and the second bevel gear 554 can be replaced by a lead screw and nuts. Among them, the lead screw is a double-threaded lead screw, and nuts are provided on each thread. The spiral directions of the two threads are opposite, the nuts are connected to the sliding members 52, and the operating member 551 is connected to the lead screw.

[0117] In this embodiment, the installation cavity includes an upper cavity 141 and a lower cavity 142. The turntable 53, the connecting rod 54 and the sliding member 52 are arranged in the upper cavity 141, and the transmission assembly 55 is arranged in the lower cavity 142, which can reduce the size of the lower cavity 142 and ensure the strength of the base 10.

[0118] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A testing device for battery testing, characterized in that: The testing device comprises: A base (10) for carrying a battery; A test component (60) is disposed on the base (10), and the test component (60) can be electrically connected to the electrodes of the battery respectively; A protective cover (20), wherein the protective cover (20) can be covered on the base (10); A locking mechanism (30) is arranged on one of the protective cover (20) and the base (10), and the locking mechanism (30) is detachably connected to the other of the protective cover (20) and the base (10).

2. The testing device according to claim 1, characterized in that: The protective cover (20) is rotatably connected to the base (10) so as to switch between an open position and a closed position, and the locking mechanism (30) is used to fix the protective cover (20) in the closed position.

3. The testing device according to claim 2, characterized in that: One end of the protective cover (20) is rotatably connected to the base (10), and the other end of the protective cover (20) can be connected to the base (10) via the locking mechanism (30).

4. The testing device according to any one of claims 1 to 3, characterized in that: The locking mechanism (30) comprises: a trigger member (32) rotatably disposed on one of the base (10) and the protective cover (20), wherein at least a portion of the trigger member (32) is located outside the base (10) and the protective cover (20); A locking member (31), the locking member (31) being connected to the trigger member (32), the other of the protective cover (20) and the base (10) being provided with a locking groove (23), the locking member (31) being insertable into the locking groove (23).

5. The testing device according to claim 4, characterized in that: One of the top surface of the base (10) and the bottom surface of the protective cover (20) is provided with a first mounting groove (13), and a through hole communicating with the first mounting groove (13) is provided on the side, and the other is provided with a second mounting groove (22), and the second mounting groove (22) can communicate with the first mounting groove (13); One end of the trigger member (32) is located in the first installation groove (13), the other end of the trigger member (32) passes through the through hole, and the locking groove (23) is arranged in the second installation groove (22).

6. The testing device according to claim 4, characterized in that: The locking mechanism (30) further comprises an anti-accidental touch component (33), wherein the anti-accidental touch component (33) is capable of restraining the trigger member (32) from rotating; The anti-mistaken touch component (33) comprises: at least two anti-rotation parts (331), at least two of the anti-rotation parts (331) are arranged around the circumference of the trigger part (32), a positioning groove is arranged on the base (10) or the protective cover (20), and the anti-rotation part (331) is slidably connected to the trigger part (32) and can extend into the positioning groove; A pulling member (333) connected to the anti-rotation member (331); A first elastic member (332), wherein the first elastic member (332) is used to drive the anti-rotation member (331) to move in a direction extending into the positioning groove.

7. The testing device according to claim 6, characterized in that: The trigger member (32) comprises a rotating shaft (321) and a rotating portion (322) connected to the rotating shaft (321), the locking member (31) is connected to the rotating shaft (321), the rotating portion (322) is located outside the base (10) and the protective cover (20), and the anti-rotation member (331) is slidably disposed on the rotating portion (322); And / or, one end of the first elastic member (332) is connected to or abuts against the trigger member (32), and the other end of the first elastic member (332) is connected to or abuts against the anti-rotation member (331); And / or, the anti-rotation component (331) comprises a rod portion (3311) and a limiting portion (3312) protruding radially along the rod portion (3311), one end of the rod portion (3311) can extend into the positioning groove, the other end of the rod portion (3311) is connected to the pulling member (333), and the limiting portion (3312) can abut against the base (10) or the protective cover (20) to restrict the length of the rod portion (3311) extending into the positioning groove; And / or, at least two of the anti-rotation components (331) are evenly spaced around the circumference of the trigger component (32).

8. The testing device according to any one of claims 1 to 3, characterized in that: The base (10) is provided with a fixing position, and the fixing position is used to carry the battery; The testing device further comprises a positioning mechanism (40), wherein the positioning mechanism (40) is connected to the testing component (60), and the positioning mechanism (40) is slidably disposed on the base (10) to adjust the distance between the testing component (60) and the fixed position.

9. The testing device according to claim 8, characterized in that: The positioning mechanism (40) comprises: A moving part (41) is slidably connected to the base (10), and the testing component (60) is arranged on the moving part (41); The elastic protrusion (42) is connected to the movable member (41), and a plurality of grooves (12) are arranged on the base (10) at intervals along the arrangement direction of the movable member (41) and the fixed position, and the elastic protrusion (42) can be inserted into any one of the grooves (12).

10. The testing device according to claim 9, characterized in that: The elastic protrusion (42) is made of elastic material; Alternatively, the elastic protrusion (42) comprises a second elastic member (422) and a protruding portion (421), and the second elastic member (422) connects the protruding portion (421) and the moving member (41); Alternatively, the elastic protrusion (42) comprises a second elastic member (422), a protrusion (421) and a telescopic rod (423); one end of the telescopic rod (423) is connected to the movable member (41), and the other end is connected to the protrusion (421); the second elastic member (422) is sleeved on the telescopic rod (423); one end of the second elastic member (422) abuts or is connected to the telescopic rod (423), and the other end abuts or is connected to the protrusion (421).

11. The testing device according to claim 9, characterized in that: The number of the elastic protrusions (42) is set to be multiple, and the multiple elastic protrusions (42) are arranged in a straight line, and the arrangement direction is perpendicular to the sliding direction of the moving member (41); And / or, the base (10) is provided with a sliding groove (11), the moving member (41) is slidably arranged in the sliding groove (11), the sliding groove (11) extends to the side wall of the base (10) to form a long hole, one end of the moving member (41) is connected to a handle (43), and the handle (43) passes through the long hole to extend out of the base (10).

12. The testing device according to any one of claims 1 to 3, characterized in that: The testing device further comprises a clamping mechanism, which is arranged on the base (10) and is used to fix the battery.

13. The testing device according to claim 12, characterized in that: The clamping mechanism comprises: Two clamping parts (51) arranged opposite to each other; Two sliding members (52), each of the clamping parts (51) is connected to the sliding member (52), and the sliding member (52) is slidably connected to the base (10) to drive the two clamping parts (51) to move closer to or farther away from each other A rotating disk (53) is rotatably connected to the base (10); two connecting rods (54), one end of each connecting rod (54) being rotatably connected to the rotating disk (53), and the other end of each connecting rod (54) being rotatably connected to the sliding member (52); The transmission assembly (55) is connected to the rotating disk (53) and is used to drive the rotating disk (53) to rotate.

14. The testing device according to claim 13, characterized in that: The base (10) is provided with a mounting cavity, and the top surface of the base (10) is provided with a avoidance hole connected with the mounting cavity. The transmission assembly (55), the turntable (53), the sliding member (52) and the connecting rod (54) are all located in the mounting cavity, and the sliding member (52) passes through the avoidance hole to connect with the clamping portion (51).

15. The testing device according to claim 13, characterized in that: The transmission assembly (55) comprises: An operating member (551) is located outside the base (10); A rotating shaft (552), one end of which is connected to the operating member (551) and the other end of which extends into the base (10); A first bevel gear (553) connected to the other end of the rotating shaft (552); The second bevel gear (554) is coaxially fixed to the rotating disk (53), and the second bevel gear (554) is meshed with the first bevel gear (553).

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