Test device

Abstract

The application provides a testing device, which comprises a supporting frame with an installation space inside, two conductive bodies and a pressure detecting part, a battery installation position for installing a battery is arranged in the installation space; the two conductive bodies are respectively used for contacting the positive pole and the negative pole of the battery on the battery installation position to charge or discharge the battery; when the battery generates gas in the inside due to charging and discharging, the internal gas pressure will generate pressure on the outer wall of the battery, the gas pressure in the inside of the battery is detected by making at least part of the detecting part contact the outer wall of the battery, so that the real-time pressure of the battery in the charging and discharging process is obtained, and the problem that the internal pressure of the battery is difficult to accurately measure in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery pressure testing, in particular to a testing device. BACKGROUND

[0002] A lithium battery is a rechargeable battery that mainly relies on the back-and-forth intercalation and deintercalation of lithium ions between the positive electrode and the negative electrode to work, so as to realize the storage and release of energy.

[0003] However, during the charging and discharging process of the lithium battery, an electrochemical reaction occurs inside, which produces a large amount of gas, thereby causing the lithium battery to bulge.

[0004] At present, there are two methods to test the internal pressure of the battery:

[0005] One way is to fill air into the battery, observe the pressure relief pressure of the explosion-proof valve or exhaust valve, and then determine the internal pressure value of the battery. However, this testing method has the following problems: when the battery bulges seriously, although it exceeds the limit value of the restraint force, it does not reach the pressure relief value of the explosion-proof valve or exhaust valve, and if it is applied, it will damage the structure of the PACK box during use, and even cause short circuit, explosion and other dangerous situations during vehicle use.

[0006] Another way is to determine the internal pressure of the battery through simulation testing, which has a certain error compared with the gas pressure generated during actual use of the battery, thereby causing the internal pressure of the battery to be unable to be accurately tested. SUMMARY

[0007] The main purpose of the present application is to provide a testing device to solve the problem of difficult accurate measurement of the internal pressure of the battery in the prior art.

[0008] In order to achieve the above purpose, according to one aspect of the present application, a testing device is provided, which comprises: a support frame, the inside of the support frame has a mounting space, a battery mounting position for mounting a battery is arranged in the mounting space; a pressure detection component, the pressure detection component is located in the mounting space, at least part of the pressure detection component is used to contact the outer wall of the battery located on the battery mounting position; two conductive bodies, the two conductive bodies are respectively used to contact the positive electrode and the negative electrode of the battery to charge the battery or make the battery discharge.

[0009] Further, the testing device further comprises a transmission assembly, the transmission assembly is located in the mounting space, the transmission assembly comprises a first transmission part and a second transmission part matched with the first transmission part, so that the second transmission part moves in a predetermined direction under the cooperation of the first transmission part and the second transmission part; wherein the second transmission part is connected with the pressure detection component to drive the pressure detection component to approach or move away from the battery mounting position.

[0010] Further, the first transmission part has an external thread, and the second transmission part has an internal thread matched with the external thread, so that the first transmission part and the second transmission part are threadedly matched.

[0011] Further, the first transmission part is a rod-shaped structure, the first transmission part is rotatably arranged on the support frame around an axis of the first transmission part, and the external thread is arranged on an outer wall surface of the first transmission part along an extension direction of the first transmission part; the second transmission part has a sleeving hole, and the internal thread is arranged on a hole wall of the sleeving hole, and the second transmission part is sleeved on the first transmission part through the sleeving hole.

[0012] Further, the testing device further comprises a connecting plate, the connecting plate is located in the mounting space, the pressure detection component is arranged on the connecting plate, and the connecting plate is connected with the second transmission part, so that the second transmission part drives the pressure detection component to move through the connecting plate.

[0013] Further, the testing device further comprises a guide rod, the guide rod extends along a predetermined direction and is fixed on the support frame; the connecting plate is provided with a guide hole, and the connecting plate is slidably sleeved on the guide rod through the guide hole.

[0014] Further, the testing device further comprises a driving assembly, the driving assembly comprises: a transmission plate, each of the conductive bodies is a columnar structure, each of the conductive bodies is arranged on the transmission plate, one end of each of the conductive bodies is used for contacting the positive electrode or the negative electrode of the battery, and the other end of each of the conductive bodies is used for being connected with the electric wire; and a transmission rod, the transmission rod is rotatably arranged around a predetermined axis, and the transmission rod is connected with the transmission plate, so that the transmission rod drives the two conductive bodies to approach or move away from the positive electrode and the negative electrode of the battery through the transmission plate.

[0015] Further, the driving assembly further comprises: a driving seat, the driving seat is arranged on the support frame; and an operation rod, the operation rod is hinged to the driving seat and connected with the transmission rod, so that the operation rod drives the transmission rod to rotate.

[0016] Further, the transmission plate has two penetrating holes, and the two conductive bodies are arranged in one-to-one correspondence with the penetrating holes; wherein each of the conductive bodies comprises a first column segment and a second column segment connected with each other, at least part of the first column segment of each of the conductive bodies is movably arranged in the corresponding penetrating hole; one end of the second column segment of each of the conductive bodies away from the first column segment thereof is used for contacting the positive electrode or the negative electrode of the battery; and one end of the first column segment of each of the conductive bodies away from the second column segment thereof is used for being connected with the electric wire.

[0017] Further, an outer circumference of a cross section of the second column segment perpendicular to an extension direction thereof is greater than an outer circumference of a cross section of the first column segment perpendicular to an extension direction thereof; and each of the second column segments is provided with an elastic member between the transmission plate and the second column segment, and each of the elastic members is sleeved on a part of the corresponding first column segment between the transmission plate and the second column segment.

[0018] Further, the support frame comprises a top plate for enclosing the mounting space, the top plate is provided with a mounting opening, the mounting opening is arranged opposite to the battery mounting position, so that the battery enters the battery mounting position through the mounting opening; and / or a support plate arranged in the mounting space, the battery mounting position is arranged on the support plate; and / or a first side plate and a second side plate arranged opposite to each other, the first side plate and the second side plate are arranged on the bottom plate, and the first side plate, the second side plate and the bottom plate are used for enclosing the mounting space.

[0019] Further, the test device further comprises a backing plate, the backing plate is located on the side of the battery mounting position away from the pressure detection component, so that the backing plate is clamped between the support frame and the battery arranged on the battery mounting position; wherein the backing plate is made of insulating material.

[0020] By applying the technical scheme of the present application, the test device comprises a support frame with a mounting space inside, and a battery mounting position for mounting a battery is arranged in the mounting space; the test device further comprises two conductive bodies, which can form an electric circuit when the two conductive bodies are in contact with the positive electrode and the negative electrode of the battery arranged on the battery mounting position, so as to charge the battery or make the battery discharge. The test device further comprises a pressure detection component, at least part of the pressure detection component is in contact with the outer wall of the battery arranged on the battery mounting position, when the battery generates gas in its interior due to charging and discharging, the internal gas pressure will generate pressure on the outer wall of the battery, by making at least part of the detection component in contact with the outer wall of the battery, the internal gas pressure of the battery is detected, so as to obtain the real-time pressure of the battery during charging and discharging, thereby solving the problem that it is difficult to accurately measure the internal pressure of the battery in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the exemplary embodiments of the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0022] Figure 1 A structural schematic diagram of an embodiment of the test device according to the present application is shown;

[0023] Figure 2 A side view of the test device in Figure 1 from a first perspective is shown;

[0024] Figure 3 An enlarged view of Figure 2 of the test device is shown;

[0025] Figure 4 A side view of the test device in Figure 1 from a second perspective is shown;

[0026] Figure 5 a side view of the third perspective of the testing device in Figure 1

[0027] Figure 6 a top view of the testing device in Figure 1

[0028] wherein the above-mentioned drawings include the following reference signs:

[0029] 100, testing device;

[0030] 10, support frame; 11, first side plate; 12, second side plate; 13, support plate; 14, top plate; 141, mounting opening; 15, bottom plate; 16, mounting space; 17, reinforcing rib;

[0031] 20, pressure detection component; 21, sensing part;

[0032] 30, electric conductor; 31, first column segment; 32, second column segment; 33, elastic member;

[0033] 40, transmission assembly; 41, first transmission part; 411, external thread; 42, second transmission part;

[0034] 431, first bearing; 432, second bearing; 44, operation handle;

[0035] 50, connecting plate; 51, sleeve; 60, guide rod;

[0036] 70, driving assembly; 71, transmission plate; 72, transmission rod; 73, driving seat; 74, operation rod;

[0037] 80, backing plate; 90, display screen;

[0038] 201, battery. DETAILED DESCRIPTION

[0039] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0040] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0041] ​​It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0042] The present application provides a testing device 100, please refer to Figures 1 to 6 The testing device 100 comprises a support frame 10, a pressure detection component 20 and two conductive bodies 30. The support frame 10 has an installation space 16 inside, and a battery installation position for installing a battery 201 is arranged in the installation space 16. The pressure detection component 20 is located in the installation space 16, and at least part of the pressure detection component 20 is used to contact the outer wall of the battery 201 located on the battery installation position. The two conductive bodies 30 are respectively used to contact the positive electrode and the negative electrode of the battery 201 to charge or discharge the battery 201.

[0043] In the testing device 100 of the present application, the testing device 100 comprises a support frame 10 having an installation space 16 inside, and a battery installation position for installing a battery 201 is arranged in the installation space 16. The testing device 100 further comprises two conductive bodies 30, which can form an electric circuit when the two conductive bodies 30 respectively contact the positive electrode and the negative electrode of the battery 201 located on the battery installation position, so as to charge or discharge the battery 201. The testing device 100 further comprises a pressure detection component 20, at least part of which contacts the outer wall of the battery 201 located on the battery installation position. When the battery 201 generates gas in its interior due to charging and discharging, the internal gas pressure will generate pressure on the outer wall of the battery 201. By contacting at least part of the pressure detection component 20 with the outer wall of the battery 201, the size of the internal gas pressure of the battery 201 can be detected, so as to obtain the real-time pressure size of the battery 201 during charging and discharging, thereby solving the problem that it is difficult to accurately measure the internal pressure size of the battery in the prior art.

[0044] Moreover, the size of the restraint force of the PACK box module can be designed according to the pressure value of the tested battery 201. The testing device 100 can also perform pressure relief in advance before the battery 201 is deformed greatly, so as to prevent the battery 201 from being seriously bulged or exploded. Moreover, it can be directly observed that the battery can reach the maximum gas pressure or stop generating gas after how many times of charging and discharging.

[0045] It should be noted that the battery 201 in the present application refers to the battery 201 located on the battery installation position.

[0046] Optionally, the pressure detecting component 20 is a pressure sensor, and the sensing part 21 of the pressure sensor is used to contact the outer wall of the battery 201 located on the battery mounting position.

[0047] In the embodiment, the testing device 100 further comprises a transmission assembly 40 located in the mounting space 16, the transmission assembly 40 comprises a first transmission part 41 and a second transmission part 42 matched with the first transmission part 41, so that the second transmission part 42 moves in a predetermined direction under the cooperation of the first transmission part 41 and the second transmission part 42; wherein the second transmission part 42 is connected with the pressure detecting component 20 to drive the pressure detecting component 20 to approach or move away from the battery mounting position. That is, when the second transmission part 42 drives the pressure detecting component 20 to move in the predetermined direction, the pressure detecting component 20 approaches or moves away from the battery mounting position.

[0048] Specifically, the first transmission part 41 has an external thread 411, and the second transmission part 42 has an internal thread matched with the external thread 411, so that the first transmission part 41 and the second transmission part 42 are threadedly matched.

[0049] Specifically, the first transmission part 41 is a rod-shaped structure, the first transmission part 41 is rotatably arranged on the support frame 10 about its axis, and the external thread 411 is arranged on the outer wall surface of the first transmission part 41 along the extension direction of the first transmission part 41. Preferably, the first transmission part 41 is a lead screw.

[0050] Specifically, the second transmission part 42 has a sleeving hole, and the internal thread is arranged on the hole wall of the sleeving hole, and the second transmission part 42 is sleeved on the first transmission part 41 through the sleeving hole.

[0051] Specifically, when the first transmission part 41 rotates about its axis, the second transmission part 42 moves along the axial direction of the first transmission part 41, that is, the axial direction of the first transmission part 41 is the above-mentioned predetermined direction.

[0052] Specifically, the testing device 100 further comprises a connecting plate 50 located in the mounting space 16, the pressure detecting component 20 is arranged on the connecting plate 50, and the connecting plate 50 is connected with the second transmission part 42, so that the second transmission part 42 drives the pressure detecting component 20 to move through the connecting plate 50.

[0053] Specifically, the testing device 100 further comprises a guide rod 60 extending in a predetermined direction and fixed on the support frame 10; the connecting plate 50 is provided with a guide hole, and the connecting plate 50 is slidably sleeved on the guide rod 60 through the guide hole, so that when the connecting plate 50 moves in the above-mentioned predetermined direction, it slides along the guide rod 60 through the guide hole.

[0054] Optionally, a sleeve 51 is arranged between the connecting plate 50 and the guide rod 60, the sleeve 51 is fixed in the guide hole, and the sleeve 51 is sleeved on the guide rod 60 in a slidable manner. In this way, the axial sliding of the connecting plate 50 along the guide rod 60 can be effectively ensured, and the wear between the connecting plate 50 and the guide rod 60 during sliding can be reduced.

[0055] Optionally, the sleeve 51 is made of metal. Preferably, the sleeve 51 is made of copper.

[0056] Optionally, the guide rod 60 is two, the connecting plate 50 is provided with two guide holes, and the two guide holes are arranged in one-to-one correspondence with the two guide rods 60, so that each guide rod 60 is arranged in the corresponding guide hole. Among them, the two guide rods 60 are parallel to each other.

[0057] Optionally, the two guide holes on the connecting plate 50 are respectively located on both sides of the pressure detection component 20.

[0058] For the specific structure of the support frame 10, the support frame 10 includes a top plate 14, a first side plate 11, a second side plate 12 and a bottom plate 15, the first side plate 11 and the second side plate 12 are arranged on the bottom plate 15, and the top plate 14 is arranged on the first side plate 11 and the second side plate 12. The top plate 14, the first side plate 11, the second side plate 12 and the bottom plate 15 jointly form a mounting space 16.

[0059] Specifically, the support frame 10 further includes a support plate 13, the support plate 13 is arranged in the mounting space 16, and the battery mounting position is arranged on the support plate 13.

[0060] Optionally, the support plate 13 is a strip-shaped plate, and the two ends of the support plate 13 are fixedly connected with the first side plate 11 and the second side plate 12 respectively.

[0061] Optionally, the support plate 13 is two, and the two support plates 13 are arranged in a spaced manner along a direction perpendicular to the above-mentioned predetermined direction; the battery mounting position is arranged on the two support plates 13, that is, the battery 201 located on the battery mounting position is arranged on the two support plates 13.

[0062] Optionally, the transmission assembly 40 is located between the two support plates 13.

[0063] Specifically, the top plate 14 is provided with a mounting opening 141, the mounting opening 141 is arranged opposite to the battery mounting position, so that the battery 201 enters the battery mounting position through the mounting opening 141. The two conductive bodies 30 contact the positive electrode and the negative electrode of the battery 201 through the mounting opening 141, and after completing the pressure test on the battery 201, the two conductive bodies 30 are separated from the positive electrode and the negative electrode of the battery 201 through the mounting opening 141.

[0064] Specifically, the first side plate 11 and the second side plate 12 are both provided with the reinforcing ribs 17 between the bottom plate 15 to enhance the stability of the support frame 10. Optionally, the first side plate 11 and the bottom plate 15 are provided with a plurality of reinforcing ribs 17 arranged at intervals; the second side plate 12 and the bottom plate 15 are provided with a plurality of reinforcing ribs 17 arranged at intervals.

[0065] Specifically, the test device 100 further comprises a pad plate 80, which is located at the side of the battery mounting position away from the pressure detection component 20, so that the pad plate 80 is clamped between the support frame 10 and the battery 201 located on the battery mounting position; wherein the pad plate 80 is made of insulating material. Since the support frame 10 is usually made of metal material, the pad plate 80 is arranged between the battery 201 and the support frame 10 to play an insulating role between the battery 201 and the support frame 10, avoiding the short circuit phenomenon of the battery 201 due to contact with metal.

[0066] Specifically, the two ends of the first transmission part 41 are rotatably arranged on the first side plate 11 and the second side plate 12, respectively.

[0067] Optionally, the two ends of the first transmission part 41 are provided with bearings between the first side plate 11 and the second side plate 12, so that the first transmission part 41 can rotate relative to the first side plate 11 and the second side plate 12. Specifically, the first end of the first transmission part 41 is provided with a first bearing 431 between the first side plate 11, and the second end of the first transmission part 41 is provided with a second bearing 432 between the second side plate 12.

[0068] Optionally, the second end of the first transmission part 41 is arranged to extend out of the mounting space 16, i.e. the second end of the first transmission part 41 is arranged to extend out of the second side plate 12, so that the first transmission part 41 is rotated by operating the second end of the first transmission part 41.

[0069] Optionally, the second end of the first transmission part 41 is provided with an operating handle 44, so that the first transmission part 41 is rotated by operating the operating handle 44.

[0070] Specifically, the two ends of each guide rod 60 are fixedly connected with the first side plate 11 and the second side plate 12, respectively.

[0071] Specifically, the pad plate 80 is clamped between the first side plate 11 and the battery 201 located on the battery mounting position; the pressure detection component 20 moves between the battery 201 located on the battery mounting position and the second side plate 12.

[0072] In the embodiment, the testing device 100 further comprises a display screen 90, which is electrically connected with the pressure detecting component 20 to display the pressure value detected by the pressure detecting component 20, so that the staff can visually read the pressure value through the display screen 90, and then the staff can conveniently obtain the real-time internal pressure of the battery 201 during the charging and discharging process.

[0073] Specifically, the display screen 90 is arranged on the support frame 10. Optionally, the display screen 90 is arranged on the top plate 14.

[0074] In the embodiment, the testing device 100 further comprises a driving assembly 70, which comprises a transmission plate 71 and a transmission rod 72. Each of the conductive bodies 30 is in a columnar structure, and each of the conductive bodies 30 is arranged on the transmission plate 71. One end of each of the conductive bodies 30 is used to contact the positive or negative electrode of the battery 201, and the other end of each of the conductive bodies 30 is used to be connected with an electric wire. The transmission rod 72 is rotatably arranged around a predetermined axis, and the transmission rod 72 is connected with the transmission plate 71, so that the transmission rod 72 drives the two conductive bodies 30 to approach or move away from the positive and negative electrodes of the battery 201 through the transmission plate 71, so as to make the two conductive bodies 30 contact or separate from the positive and negative electrodes of the battery 201.

[0075] Optionally, the other end of each of the conductive bodies 30 is provided with a nut, and the electric wire is screwed on the other end of each of the conductive bodies 30 through the nut, so as to connect the other end of each of the conductive bodies 30 with the electric wire.

[0076] Specifically, the driving assembly 70 further comprises a driving seat 73 and an operating rod 74. The driving seat 73 is arranged on the support frame 10. The operating rod 74 is hinged to the driving seat 73 and connected with the transmission rod 72, so as to drive the transmission rod 72 to rotate through the operating rod 74. In the specific implementation process, the operating rod 74 is operated to rotate around the predetermined axis, and the operating rod 74 drives the transmission rod 72 to rotate around the predetermined axis.

[0077] Optionally, the operating rod 74 is connected with the middle part of the transmission rod 72. One end of the transmission rod 72 is connected with the transmission plate 71, and the other end of the transmission rod 72 is hinged to the driving seat 73.

[0078] Optionally, the end of the operating rod 74 away from the driving seat 73 is provided with a handle part.

[0079] Specifically, the driving seat 73 is arranged on the top plate 14.

[0080] Specifically, as shown in FIG. 1, Figure 2 and Figure 3As shown, the transmission plate 71 has two through holes, and two conductive bodies 30 are arranged in the two through holes one by one; each conductive body 30 comprises a first column segment 31 and a second column segment 32 which are connected to each other, at least part of the first column segment 31 of each conductive body 30 is movably arranged in the corresponding through hole; the end of the second column segment 32 of each conductive body 30 which is away from the first column segment 31 is used to contact the positive electrode or the negative electrode of the battery 201; and the end of the first column segment 31 of each conductive body 30 which is away from the second column segment 32 is used to be connected with the electric wire.

[0081] Specifically, the second column segment 32 of each conductive body 30 is located on the side of the transmission plate 71 which is close to the battery 201.

[0082] Specifically, the outer circumference of the cross section of the second column segment 32 which is perpendicular to the extending direction of the second column segment 32 is greater than the outer circumference of the cross section of the first column segment 31 which is perpendicular to the extending direction of the first column segment 31; each second column segment 32 is provided with an elastic member 33 between the transmission plate 71 and the second column segment 32, and each elastic member 33 is sleeved on the part of the corresponding first column segment 31 which is between the transmission plate 71 and the second column segment 32. In this way, when the size of the battery 201 on the battery mounting position is different, the positions of the two conductive bodies 30 can be adjusted, that is, the position of the end of each second column segment 32 which is away from the first column segment 31 can be adjusted, so that the end of each second column segment 32 which is away from the first column segment 31 can contact the positive electrode or the negative electrode of the battery 201 of different sizes, and then the test device 100 can be applicable to the battery 201 of different sizes, thereby improving the versatility of the test device 100.

[0083] Alternatively, the driving assembly 70 can also use a pneumatic cylinder or a manual valve instead, and the pneumatic cylinder or the manual valve is used to drive the conductive body 30 to approach or move away from the positive electrode and the negative electrode of the battery 201.

[0084] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0085] In the test device 100 of the present application, the test device 100 comprises a support frame 10 with an installation space 16 inside, and a battery installation position is arranged in the installation space 16 for installing a battery 201; the test device 100 further comprises two conductive bodies 30, which can form an electric circuit when the two conductive bodies 30 are in contact with the positive and negative poles of the battery 201 located on the battery installation position, so as to charge the battery 201 or make the battery 201 discharge. The test device 100 further comprises a pressure detection component 20, at least a part of the pressure detection component 20 is in contact with the outer wall of the battery 201 located on the battery installation position, when the battery 201 generates gas in the inside due to charging and discharging, the internal gas pressure will generate pressure on the outer wall of the battery 201, the pressure detection component 20 is in contact with the outer wall of the battery 201 to detect the internal gas pressure of the battery 201, so as to obtain the real-time pressure of the battery 201 in the charging and discharging process, and further solve the problem that it is difficult to accurately measure the internal pressure of the battery in the prior art.

[0086] It should be noted that the terms "first", "second", and the like in the description and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0087] For ease of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0088] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A battery pressure testing device, characterized by, The test device comprises: a support frame (10) having an installation space (16) in the interior of the support frame (10), a battery installation position for installing a battery (201) being arranged in the installation space (16); a pressure detection component (20) arranged in the installation space (16), at least a part of the pressure detection component (20) being used to contact an outer wall of the battery (201) arranged on the battery installation position; two conductive bodies (30) respectively used to contact a positive electrode and a negative electrode of the battery (201) to charge or discharge the battery (201); a driving assembly (70) comprising a transmission plate (71) and a transmission rod (72), each of the conductive bodies (30) is in a columnar structure, each of the conductive bodies (30) is arranged on the transmission plate (71), one end of each of the conductive bodies (30) is used to contact the positive electrode or the negative electrode of the battery (201), and the other end of each of the conductive bodies (30) is used to be connected with an electric wire; the transmission rod (72) is rotatably arranged around a predetermined axis, the transmission rod (72) is connected with the transmission plate (71) to drive the two conductive bodies (30) to approach or move away from the positive electrode and the negative electrode of the battery (201) through the transmission plate (71); a backing plate (80) arranged on a side of the battery installation position away from the pressure detection component (20) to be clamped between the support frame (10) and the battery (201) arranged on the battery installation position.

2. The battery pressure testing device of claim 1, wherein, The test device further comprises: a transmission assembly (40) arranged in the installation space (16), the transmission assembly (40) comprising a first transmission part (41) and a second transmission part (42) matched with the first transmission part (41) to move the second transmission part (42) in a predetermined direction under the cooperation of the first transmission part (41) and the second transmission part (42); wherein the second transmission part (42) is connected with the pressure detection component (20) to drive the pressure detection component (20) to approach or move away from the battery installation position.

3. The battery pressure testing device of claim 2, wherein, The first transmission part (41) has an external thread (411), and the second transmission part (42) has an internal thread matched with the external thread (411) to threadedly match the first transmission part (41) and the second transmission part (42).

4. The test device for battery pressure according to claim 3, wherein the first transmission part (41) is in a rod-like structure, the first transmission part (41) is rotatably arranged on the support frame (10) around an axis thereof, and the external thread (411) is arranged on an outer wall surface of the first transmission part (41) in an extension direction of the first transmission part (41). The second transmission part (42) has a sleeving hole, the internal thread is arranged on the hole wall of the sleeving hole, and the second transmission part (42) is sleeved on the first transmission part (41) through the sleeving hole.

5. The battery pressure testing device of claim 2, wherein, The test device further comprises: A connecting plate (50) is located in the mounting space (16), the pressure detection component (20) is arranged on the connecting plate (50), and the connecting plate (50) is connected with the second transmission part (42) to drive the second transmission part (42) to move the pressure detection component (20) through the connecting plate (50).

6. The battery pressure testing device of claim 5, wherein, The test device further comprises: A guide rod (60) extends along the predetermined direction and is fixed on the support frame (10); a guide hole is arranged on the connecting plate (50), and the connecting plate (50) is slidably sleeved on the guide rod (60) through the guide hole.

7. The battery pressure testing device of claim 1, wherein, The driving assembly (70) further comprises: A driving seat (73) is arranged on the support frame (10); An operating rod (74) is hinged to the driving seat (73) and connected with the transmission rod (72) to drive the transmission rod (72) to rotate through the operating rod (74).

8. The battery pressure testing device of claim 1, wherein, The transmission plate (71) has two through holes, and the two conductive bodies (30) are arranged in one-to-one correspondence with the through holes; Each conductive body (30) comprises a first column segment (31) and a second column segment (32) connected with each other, at least part of the first column segment (31) of each conductive body (30) is movably arranged in the corresponding through hole, one end of the second column segment (32) of each conductive body (30) away from the first column segment (31) is used for contacting the positive electrode or the negative electrode of the battery (201), and one end of the first column segment (31) of each conductive body (30) away from the second column segment (32) is used for connecting with the electric wire.

9. The battery pressure testing apparatus of claim 8, wherein, The outer circumference of the cross section of the second column segment (32) perpendicular to the extension direction thereof is greater than the outer circumference of the cross section of the first column segment (31) perpendicular to the extension direction thereof; Each second column segment (32) and the transmission plate (71) are provided with an elastic member (33), and each elastic member (33) is sleeved on the part of the corresponding first column segment (31) between the transmission plate (71) and the second column segment (32).

10. The battery pressure testing device of claim 1, wherein, The support frame (10) comprises: A top plate (14) is used for enclosing the mounting space (16), an installation opening (141) is arranged on the top plate (14), the installation opening (141) is arranged opposite to the battery mounting position, so that the battery (201) enters the battery mounting position through the installation opening (141); and / or A support plate (13) is arranged in the mounting space (16), and the battery mounting position is arranged on the support plate (13); and / or The first side plate (11), the second side plate (12) and the bottom plate (15), the first side plate (11) and the second side plate (12) are oppositely arranged, the first side plate (11) and the second side plate (12) are arranged on the bottom plate (15), and the first side plate (11), the second side plate (12) and the bottom plate (15) are used for enclosing the mounting space (16).

11. The battery pressure testing device of claim 1, wherein, The backing plate (80) is made of insulating material.

Images