Testing device and testing system for battery
By designing fluid channels and telescopic conductive structures suitable for battery testing devices, the problem that existing devices cannot simulate the actual working conditions of battery oil cooling is solved, achieving accurate simulation and safety adaptability of batteries, and providing real-time detection capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing testing equipment cannot simulate the actual operating conditions of batteries when cooled by oil, especially the cooling effect on the upper part of the battery is poor.
A testing device was designed, including a housing, an oil inlet pipe, an oil outlet pipe, conductive components, and spacers. It simulates the oil cooling process through a fluid channel to ensure that the oil flows from the front or back of the battery. Combined with telescopic conductive components and a sealing structure, it can adapt to batteries of different specifications. It is equipped with a detection unit to monitor the cooling medium parameters.
It achieves accurate simulation of battery oil cooling, adapts to batteries of different specifications, improves the accuracy and safety of testing, and monitors the cooling effect in real time through the detection unit.
Smart Images
Figure CN224095973U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, and in particular to a testing device and testing system for batteries. Background Technology
[0002] During the battery manufacturing process, it is necessary to test the temperature state of the battery during actual use using testing equipment.
[0003] The testing devices in the related technologies cannot simulate the actual operating conditions of batteries when they are cooled by oil. Utility Model Content
[0004] In view of the above problems, this application provides a testing device and testing system for batteries, which can solve the problem that existing testing devices cannot simulate the actual working conditions of batteries when cooled by oil.
[0005] To address the aforementioned technical problems, this application proposes a testing apparatus for batteries, comprising:
[0006] The housing has a sealed chamber inside, and the battery is disposed in the sealed chamber. The sealed chamber is configured to accommodate the battery. The housing has a first groove and a second groove on opposite sides along a first direction. The first groove is configured to form an oil inlet chamber with the side wall of the battery, and the second groove is configured to form an oil outlet chamber with the other side wall of the battery.
[0007] An oil inlet pipe is disposed in the housing and communicates with the oil inlet chamber;
[0008] An oil outlet pipe is provided in the housing and communicates with the oil outlet chamber;
[0009] A first conductive element is disposed in the housing and configured to be electrically connected to the positive terminal of the battery.
[0010] A second conductive element is disposed in the housing and configured to be electrically connected to the negative terminal of the battery.
[0011] At least two spacer bars are provided on at least one side of the battery along a second direction. A fluid channel is formed between two adjacent spacer bars. One end of the fluid channel is connected to the oil inlet chamber, and the other end of the fluid channel is connected to the oil outlet chamber. The first direction is the flow direction of the fluid in the fluid channel, and the second direction intersects with the first direction.
[0012] In the technical solution of this application embodiment, the battery is in working state after the first conductive element and the second conductive element are connected to conduct electricity. When the oil enters the oil inlet chamber from the oil inlet pipe, then flows into the oil outlet chamber through the fluid channel, and finally exits from the oil outlet pipe, since the fluid can flow through either the front or back of the battery during the flow through the fluid channel, the actual working conditions of the battery when cooled by oil can be accurately simulated.
[0013] In some embodiments, the housing includes a body and a plate, the body having an opening on one side along the second direction, the plate being connected to the opening side of the body, and the plate and the body together forming the sealed chamber;
[0014] The body has a first groove and a second groove respectively on opposite sides along the first direction inside the body.
[0015] The oil inlet pipe, the oil outlet pipe, the first conductive element, and the second conductive element are all disposed on the main body.
[0016] In this way, the battery can be easily placed in the sealed chamber by removing the plate from the main body.
[0017] In some embodiments, two telescopic conductive elements are further included, both of which are disposed inside the body;
[0018] The first conductive element and the second conductive element are respectively electrically connected to the two telescopic conductive elements.
[0019] In this way, the telescopic conductive component facilitates the connection of the first conductive component to the corresponding positive terminal, and at the same time, it also facilitates the connection of the second conductive component to the corresponding negative terminal.
[0020] In some embodiments, the telescopic conductive element includes an insulating shell, a column, a movable plate, an elastic element, and a conductive needle;
[0021] The insulating shell is fixed inside the main body, the column is disposed inside the insulating shell along a third direction, the movable plate is disposed inside the insulating shell, the movable plate is sleeved on the column, and the movable plate can move relative to the column along the third direction, the elastic member is sleeved on the column, and one end of the elastic member abuts against the movable plate;
[0022] One end of the conductive needle is connected to the movable plate, and the other end of the conductive needle passes through the bottom surface of the insulating shell and is located in the sealed cavity.
[0023] The first conductive element and the second conductive element are respectively electrically connected to the movable plate.
[0024] In this way, as the conductive needle moves relative to the moving plate, the length of the conductive needle in the sealed chamber will change. This allows the conductive needle to contact the terminals on the battery when batteries of different sizes are placed inside the casing, thus enabling the entire device to adapt to batteries of different sizes.
[0025] In some embodiments, the surface of the conductive needle is provided with an anti-oxidation layer. This prevents oxidation of the conductive needle surface during use.
[0026] In some embodiments, the first conductive element and / or the second conductive element are conductive bolts, the conductive bolts are rotatably connected to the body, and the conductive bolts pass through the insulating shell and are electrically connected to the movable plate;
[0027] When the conductive bolt rotates relative to the body, the conductive bolt can drive the insulating shell to move along the third direction.
[0028] In this way, rotating the conductive bolt can move the movable plate, which in turn causes the conductive needle to extend and retract.
[0029] In some embodiments, the main body is provided with an explosion-proof valve port. This improves the safety of the overall device during use.
[0030] In some embodiments, a first seal is further included, which is disposed within the explosion-proof valve port.
[0031] This ensures that the sealed chamber remains sealed during use, preventing oil leakage.
[0032] In some embodiments, a pad is also included, the pad being disposed on the side of the plate facing the battery, and / or,
[0033] The gasket is located inside the main body on the side facing the battery. The internal dimensions of the sealed chamber are adjusted using the gasket so that the overall device is compatible with batteries of different sizes.
[0034] In some embodiments, the gasket includes at least two stacked connecting plates that are detachably connected to each other. This allows the thickness of the gasket to be adjusted by changing the number of connecting plates, thereby enabling the adjustment of the size of the corresponding sealing chamber according to actual needs.
[0035] In some embodiments, a flexible layer is provided on the side of the pad facing the battery. This prevents the pad from rubbing against the battery and causing damage to the battery surface.
[0036] In some embodiments, a sealing ring is also included, which is disposed between the body and the plate. This ensures a tight seal between the body and the plate.
[0037] In some embodiments, a fastener is also included, which is configured to connect the body to the plate. This facilitates the connection of the body and the plate together.
[0038] In some embodiments, the spacer strip is a rubber strip.
[0039] By using rubber strips as corresponding fluid channels, and because rubber strips are easy to bend and cut, they can be quickly adjusted according to actual needs.
[0040] In some embodiments, a second seal is further included, which is disposed between the upper inner side of the housing and the upper surface of the battery.
[0041] In this way, the second seal seals the top of the battery with the top of the casing, and the bottom of the battery abuts against the bottom of the casing, thus preventing oil leakage from the top or bottom.
[0042] In some embodiments, the second seal is an elastic seal.
[0043] This application also provides a battery testing system for use with any of the testing devices described in the embodiments of this application, including: a liquid storage unit, a power delivery unit, a cooling unit, and a reflux unit;
[0044] The oil outlet of the liquid storage unit is connected in sequence to the power transmission unit, the cooling unit and the oil inlet pipe through a pipeline. The liquid storage unit is configured to store the circulating medium, the power transmission unit is configured to drive the circulation of the circulating medium, and the cooling unit is configured to cool the circulating medium.
[0045] The reflux unit is configured to connect the oil outlet pipe to the oil inlet of the liquid storage unit.
[0046] In some embodiments, a flow regulating unit is further included, which is disposed between the power delivery unit and the cooling unit. This facilitates the adjustment of the flow rate of the corresponding circulating medium.
[0047] In some embodiments, a first detection unit is further included, which is disposed between the cooling unit and the oil inlet pipe and configured to detect the pressure of the circulating medium. This facilitates the detection of the pressure of the corresponding circulating medium.
[0048] In some embodiments, a second detection unit is further included, which is disposed between the first detection unit and the oil inlet pipe and configured to detect the flow rate of the circulating medium. This facilitates the detection of the flow rate of the corresponding circulating medium.
[0049] In some embodiments, a third detection unit is further included, which is disposed between the second detection unit and the oil inlet pipe and configured to detect the temperature of the circulating medium before it enters the oil inlet pipe. This facilitates the detection of the temperature of the circulating medium before it enters the oil inlet pipe.
[0050] In some embodiments, a fourth detection unit is further included, which is disposed between the oil outlet pipe and the oil inlet end of the liquid storage unit and is configured to detect the temperature of the circulating medium after heat exchange. This facilitates the detection of the temperature of the circulating medium after heat exchange.
[0051] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0052] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0053] Figure 1 A schematic diagram of the structure of a battery testing apparatus provided in some embodiments of this application;
[0054] Figure 2 for Figure 1 Exploded view;
[0055] Figure 3 A schematic diagram of a battery provided for some embodiments of this application;
[0056] Figure 4 Schematic diagram of a telescopic conductive element provided for some embodiments of this application;
[0057] Figure 5 This is a schematic diagram of the battery and spacer bar in some embodiments of this application;
[0058] Figure 6 This is a schematic diagram of a battery testing system provided in some embodiments of this application.
[0059] The reference numerals in the detailed embodiments are as follows:
[0060] 10. Shell; 101. Body; 1011. Explosion-proof valve port; 1012. Oil inlet chamber; 1013. Oil outlet chamber; 102. Plate; 11. Oil inlet pipe; 12. Oil outlet pipe; 13. First conductive element; 14. Second conductive element; 15. Fastener; 16. Telescopic conductive element; 161. Insulating shell; 162. Column; 163. Moving plate; 164. Elastic element; 165. Conductive needle; 17. First sealing element; 18. Sealing ring; 19. Battery; 191. Positive terminal; 192. Negative terminal; 20. Spacer bar; 21. Fluid channel; 22. Pad; 23. Liquid storage unit; 24. Power transmission unit; 25. Flow regulation unit; 26. Cooling unit; 27. First detection unit; 28. Second detection unit; 29. Third detection unit; 30. Fourth detection unit. Detailed Implementation
[0061] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0063] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0064] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0065] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0066] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0067] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0068] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0069] In the battery manufacturing process, it is necessary to use testing equipment to simulate the temperature state of the battery during actual use.
[0070] In the testing devices of the related technologies, the coolant can only cool the bottom of the battery when in use, and the cooling effect on the top of the battery is poor. This makes it impossible to simulate the actual working conditions when the battery is cooled by oil.
[0071] Based on the above considerations, in order to solve the problem that existing testing devices cannot simulate the actual working conditions of batteries when cooled by oil, this application proposes a testing device for batteries. The device includes a housing, an oil inlet pipe, an oil outlet pipe, a first conductive element, a second conductive element, and at least two spacers. The housing is provided with a sealed chamber configured to accommodate a battery. The housing is provided with a first groove and a second groove on opposite sides along a first direction. The first groove is configured to form an oil inlet chamber with the side wall of the battery, and the second groove is configured to form an oil outlet chamber with the other side wall of the battery. An oil inlet pipe is disposed in the housing and communicates with the oil inlet chamber; an oil outlet pipe is disposed in the housing and communicates with the oil outlet chamber; a first conductive element is disposed in the housing and is configured to be electrically connected to the positive terminal of the battery; a second conductive element is disposed in the housing and is configured to be electrically connected to the negative terminal of the battery; spacers are disposed on at least one side of the battery along a second direction, and a fluid channel is formed between two adjacent spacers. One end of the fluid channel communicates with the oil inlet chamber, and the other end of the fluid channel communicates with the oil outlet chamber. The first direction is the flow direction of the fluid in the fluid channel, and the second direction intersects with the first direction.
[0072] In the technical solution of this application embodiment, when the battery is placed inside the casing, the bottom surface of the battery is in close contact with the inner bottom surface of the casing. The first conductive element is in contact with the positive terminal of the battery, and the second conductive element is in contact with the negative terminal of the battery. Simultaneously, the right side of the battery and the first groove on the right side of the casing together form an oil inlet chamber, and the left side of the battery and the second groove on the left side of the casing together form an oil outlet chamber. After the first and second conductive elements are connected for conduction, the battery is in a working state. Oil enters the oil inlet chamber from the oil inlet pipe, then flows through the fluid channel into the oil outlet chamber, and finally exits through the oil outlet pipe. Because the fluid can flow through either the front or back of the battery during the flow through the fluid channel, the actual operating conditions of the battery when cooled by oil can be accurately simulated.
[0073] According to some embodiments of this application, such as Figure 1 and combined Figure 2 , Figure 3As shown, this application provides a battery testing device, which includes a housing 10, an oil inlet pipe 11, an oil outlet pipe 12, a first conductive element 13, a second conductive element 14, and at least two spacer bars 20. The housing 10 has a sealed chamber configured to accommodate a battery. Inside the housing 10, a first groove and a second groove are respectively provided on opposite sides along a first direction. The first groove is configured to form an oil inlet chamber 1012 with the side wall of the battery, and the second groove is configured to form an oil outlet chamber 1013 with the other side wall of the battery. The oil inlet pipe 11 is disposed in the housing 10 and communicates with the oil inlet chamber 1012. The oil outlet pipe 12... Pipe 12 is disposed in housing 10, and oil outlet pipe 12 is connected to oil outlet chamber 1013. First conductive element 13 is disposed in housing 10 and configured to be electrically connected to the positive terminal of the battery. Second conductive element 14 is disposed in housing 10 and configured to be electrically connected to the negative terminal of the battery. Spacer strip 20 is disposed on at least one side of the battery along the second direction. A fluid channel 21 is formed between two adjacent spacer strips 20. One end of the fluid channel 21 is connected to oil inlet chamber 1012, and the other end of the fluid channel 21 is connected to oil outlet chamber 1013. The first direction is the flow direction of the fluid in the fluid channel 21, and the second direction intersects with the first direction.
[0074] The first direction in this embodiment is as follows: Figure 2 The first direction is the X-axis, and the second direction is the Y-axis. The angle between the X-axis and the Y-axis can be 85°, 90°, etc. For ease of explanation, the following explanation will use the example of the X-axis being perpendicular to the Y-axis.
[0075] In this embodiment, both the first conductive element 13 and the second conductive element 14 can be conductive bolts, conductive wires, etc., and there is no limitation here.
[0076] In this embodiment, a spacer strip 20 may be provided on one of the large surfaces of the battery 19 along the Y-axis direction, or a spacer strip 20 may be provided on both large surfaces of the battery 19 along the Y-axis direction; there is no limitation here.
[0077] refer to Figure 3 As shown, this embodiment may include two or three equally spaced strips 20. The spacer strips 20 may be made of rubber or plastic, and the specific material may be determined according to the actual situation. This embodiment does not limit the specific material. Each spacer strip 20 may be adhered to the side of the battery 19 along the Y-axis direction, and each spacer strip 20 extends along the X-axis direction. Of course, it is understood that the spacer strips 20 may also be bent and extended, which is not limited here.
[0078] When the battery 19 is placed inside the housing 10, the bottom surface of the battery 19 is in close contact with the inner bottom surface of the housing 10. The first conductive element 13 is in contact with the positive terminal 191 on the battery 19, and the second conductive element 14 is in contact with the negative terminal 192 on the battery 19. At the same time, the right side of the battery 19 and the first groove on the right side of the housing 10 together form an oil inlet cavity 1012, and the left side of the battery 19 and the second groove on the left side of the housing 10 together form an oil outlet cavity 1013.
[0079] When the first conductive element 13 and the second conductive element 14 are connected to conduct electricity, the battery 19 is in working condition. Oil enters the oil inlet chamber 1012 from the oil inlet pipe 11, then flows through the fluid channel 21 into the oil outlet chamber 1013, and finally exits through the oil outlet pipe 12. Since the fluid can flow through either the front or back of the battery 19 during its flow through the fluid channel 21, the actual operating conditions of the battery 19 when cooled by oil can be accurately simulated.
[0080] According to some embodiments of this application, such as Figure 2 As shown, the housing 10 includes a body 101 and a plate 102. The body 101 has an opening on one side along the second direction, and the plate 102 is connected to the opening side of the body 101. The plate 102 and the body 101 together enclose a sealed chamber. The body 101 has a first groove and a second groove on opposite sides along the first direction. The oil inlet pipe 11, the oil outlet pipe 12, the first conductive element 13 and the second conductive element 14 are all disposed on the body 101.
[0081] The first and second directions in this embodiment can be referred to the description above, and will not be repeated here.
[0082] In this embodiment, the body 101 has a hollow structure inside. The front side of the body 101 along the Y-axis has an opening. The plate 102 can be connected to the opening side of the body 101 by bolts. At this time, the plate 102 and the body 101 together form a sealed cavity.
[0083] When the battery 19 is placed in the corresponding sealed chamber, the right side of the battery 19 along the X-axis direction and the first groove inside the right side of the body 101 form an oil inlet chamber 1012, and the left side of the battery 19 along the X-axis direction and the second groove inside the left side of the body 101 form an oil outlet chamber 1013.
[0084] The oil inlet pipe 11, the oil outlet pipe 12, the first conductive element 13, and the second conductive element 14 can all be connected to the upper side of the main body 101, and there is no limitation here.
[0085] In use, the battery 19 can be easily placed in the sealed chamber by removing the plate 102 from the body 101.
[0086] According to some embodiments of this application, such as Figure 2 As shown, it also includes two telescopic conductive elements 16, both of which are disposed inside the body 101; at the same time, the first conductive element 13 and the second conductive element 14 are electrically connected to the two telescopic conductive elements 16 respectively.
[0087] In this embodiment, the telescopic conductive element 16 can be snapped or bolted to the upper side inside the body 101, which is not limited here.
[0088] In this embodiment, the telescopic conductive element 16 can be a telescopic conductive rod, a spring rod, etc. The specific type can be determined according to the actual situation, and this specification does not limit it in this embodiment.
[0089] When the telescopic conductive member 16 is fixed inside the body 101, the first conductive member 13 is electrically connected to one of the telescopic conductive members 16, and the second conductive member 14 is electrically connected to the other telescopic conductive member 16.
[0090] In use, when batteries 19 of different sizes are placed inside the main body 101, the distance between the upper side of each battery 19 and the upper side of the interior of the main body 101 varies. The telescopic conductive element 16 automatically adjusts its length to facilitate electrical connection between the first conductive element 13 and the corresponding positive terminal 191, and between the second conductive element 14 and the corresponding negative terminal 192. This allows the entire device to be used for testing batteries of different specifications.
[0091] According to some embodiments of this application, such as Figure 4 As shown, the telescopic conductive element 16 includes an insulating shell 161, a column 162, a movable plate 163, an elastic element 164, and a conductive needle 165. The insulating shell 161 is fixed inside the main body 101. The column 162 is disposed within the insulating shell 161 along a third direction. The movable plate 163 is disposed inside the insulating shell 161, fitted onto the column 162, and is movable relative to the column 162 along a third direction. The elastic element 164 is fitted onto the column 162, with one end abutting against the movable plate 163. One end of the conductive needle 165 is connected to the movable plate 163, and the other end of the conductive needle 165 passes through the bottom surface of the insulating shell 161 and is located within the sealed cavity. The first conductive element 13 and the second conductive element 14 are electrically connected to the movable plate 163 respectively.
[0092] In this embodiment, the third direction is as follows: Figure 4 The Z-axis direction in the equation.
[0093] In this embodiment, the elastic element 164 can refer to a component that can deform under the action of external force and return to its original shape after the external force is removed. The elastic element 164 can be elastically compressed in the Z direction. The elastic element 164 can be made of metal or non-metal, such as leaf spring, coil spring, gas spring, rubber spring, etc. The specific material can be determined according to the actual situation. This embodiment of the specification does not limit this.
[0094] In this embodiment, the insulating shell 161 can be a plastic shell, a resin shell, etc., and there is no limitation here.
[0095] This embodiment includes multiple conductive pins 165, such as 10 or 15, etc., which are not limited here.
[0096] In this embodiment, the insulating shell 161 can be fixed to the upper side of the body 101 by bolts or snap-fit. The column 162 is fixed to the insulating shell 161 along the Z-axis. The movable plate 163 is located on the bottom surface of the insulating shell 161. The movable plate 163 is sleeved on the column 162 and can move relative to the column 162 along the Z-axis. The elastic element 164 is sleeved on the column 162. The upper end of the elastic element 164 abuts against the upper side of the insulating shell 161, and the lower end of the elastic element 164 abuts against the upper surface of the movable plate 163. One end of the conductive needle 165 is connected to the movable plate 163, and the other end of the conductive needle 165 passes through the bottom surface of the insulating shell 161 and is located in the sealed cavity. When the movable plate 163 presses against the elastic element 164, the movable plate 163 can synchronously drive the conductive needle 165 to move relative to the bottom surface of the insulating shell 161 in the Z-axis direction.
[0097] In this embodiment, both the first conductive element 13 and the second conductive element 14 can be snapped onto the upper side of the body 101. One end of the first conductive element 13 is located outside the body 101, and the other end passes through the corresponding insulating shell 161 and is electrically connected to the movable plate 163. The connection structure of the second conductive element 14 is the same as that of the first conductive element 13, and will not be described again here.
[0098] In the initial state: the elastic element 164 is at its natural length, and at this time, the conductive needle 165 is partially located outside the bottom surface of the insulating shell 161.
[0099] When the battery 19 is placed inside the body 101, when the positive terminal 191 or negative terminal 192 on the battery 19 comes into contact with the corresponding conductive pin 165, the positive terminal 191 or negative terminal 192 will push the conductive pin 165 to move upward along the Z-axis, and the conductive pin 165 will push the elastic member 164 to compress through the moving plate 163.
[0100] After the test is completed, the battery 19 is removed from the body 101, the elastic element 164 springs back, and the conductive pin 165 resets.
[0101] In this way, when the conductive needle 165 moves relative to the moving plate 163, the length of the conductive needle 165 in the sealed chamber will change. This way, when batteries 19 of different sizes are placed in the body 101, the conductive needle 165 can contact the positive terminal 191 or the negative terminal 192 on the battery 19, so that the whole device can be adapted to batteries 19 of different sizes.
[0102] It should be noted that the structure of the telescopic conductive component described above is merely an example. Other structures can also be used in alternative solutions, such as a telescopic metal rod. This application does not impose any special restrictions on the specific structure of the telescopic conductive component, as long as the above structure can achieve the purpose of this application.
[0103] According to some embodiments of this application, the surface of the conductive needle 165 is provided with an anti-oxidation layer.
[0104] In this embodiment, the anti-oxidation layer can be a gold plating layer, nickel plating layer, etc., and is not limited here.
[0105] Because the conductive needle 165 has an anti-oxidation layer on its surface, it can avoid oxidation and corrosion during use, which would lead to a decrease in conductivity.
[0106] According to some embodiments of this application, the first conductive element 13 and / or the second conductive element 14 are conductive bolts. The conductive bolts are rotatably connected to the body 101, and the conductive bolts pass through the insulating shell 161 and are electrically connected to the moving plate 163. When the conductive bolts rotate relative to the body 101, the conductive bolts can drive the insulating shell 161 to move in a third direction.
[0107] In this embodiment, a threaded hole is provided on the main body 101. The conductive bolt mates with the corresponding threaded hole. After passing through the threaded hole, the conductive bolt passes through the insulating shell 161 and is electrically connected to the movable plate 163. When the conductive bolt is rotated, it can drive the movable plate 163 to move relative to the insulating shell 161 along the Z-axis direction, thereby synchronously driving the conductive needle 165 to extend relative to the insulating shell 161 in the Z-axis direction.
[0108] When batteries 19 of different sizes are placed inside the body 101, the conductive pins 165 can be made to contact the positive terminal 191 or negative terminal 192 on the battery 19 by rotating the corresponding conductive bolts, so that the whole device can be adapted to batteries 19 of different sizes.
[0109] According to some embodiments of this application, such as Figure 1 As shown, an explosion-proof valve port 1011 is provided on the main body 101.
[0110] When the battery 19 is placed inside the main body 101, the position of the explosion-proof valve on the battery 19 is directly opposite the position of the explosion-proof valve port 1011, which can improve the safety of the overall device during use.
[0111] According to some embodiments of this application, a first seal 17 is also included, which is disposed within the explosion-proof valve port 1011.
[0112] In this embodiment, the first sealing element 17 can be a sponge, rubber, etc., and there is no limitation here.
[0113] When in use, the explosion-proof valve port 1011 is sealed by the first sealing element 17, which can ensure that the sealing chamber of the whole device is in a sealed state during use, thus preventing oil leakage.
[0114] According to some embodiments of this application, such as Figure 5 As shown, it also includes a pad 22, which is disposed on the side of the plate 102 facing the battery, and / or, the pad 22 is disposed inside the body 101 on the side facing the battery.
[0115] In this embodiment, the pad 22 can be provided only on the side of the plate 102 facing the battery 19, or the pad 22 can be provided only inside the body 101 on the side facing the battery 19, or the pad 22 can be provided on opposite sides of the plate 102 and the body 101. For ease of explanation, the following description will use the example of the pad 22 being provided on the side of the plate 102 facing the battery 19.
[0116] In this embodiment, the pad 22 can be snapped onto the plate 102, or the pad 22 can be connected to the plate 102 by bolts, which is not limited here.
[0117] refer to Figure 5 As shown, by installing a pad 22 on the side of the plate 102 facing the battery 19, the overall sealed chamber can be adjusted in the Y-axis direction under the action of the pad 22 after the plate 102 is fixed to the body 101, so that the overall device can be compatible with fixing batteries of different sizes.
[0118] According to some embodiments of this application, the pad 22 includes at least two stacked connecting plates that are detachably connected to each other.
[0119] In this embodiment, the two stacked connecting plates can be fitted together by a structure of protrusions and slots, which is not limited here.
[0120] In use, the thickness of the corresponding pad 22 can be adjusted by increasing or decreasing the number of connecting plates, thereby allowing the size of the corresponding sealing chamber to be adjusted according to actual needs.
[0121] According to some embodiments of this application, a flexible layer is provided on the side of the pad 22 facing the battery.
[0122] The flexible layer in this embodiment can be a rubber layer, a resin layer, etc., and is not limited here.
[0123] By providing a flexible layer on the side of the pad 22 facing the battery, the pad 22 can be prevented from rubbing against the battery and causing damage to the battery surface.
[0124] According to some embodiments of this application, such as Figure 2 As shown, it also includes a sealing ring 18, which is disposed between the body 101 and the plate 102. In this way, the sealing of the connection between the body 101 and the plate 102 can be ensured.
[0125] According to some embodiments of this application, a fastener 15 is also included, which is configured to connect the body 101 and the plate 102.
[0126] In this embodiment, the fastener 15 can be a bolt, a connecting pin, etc., and there is no limitation here.
[0127] The main body 101 and the plate 102 can be easily connected together using fastener 15.
[0128] According to some embodiments of this application, the spacer 20 is a rubber strip.
[0129] By using rubber strips as corresponding fluid channels, and because rubber strips are easy to bend and cut, they can be quickly adjusted according to actual needs.
[0130] It is understandable that the aforementioned spacer 20 could also be a resin strip, etc., and this is not limited here.
[0131] According to some embodiments of this application, a second seal is also included, which is disposed between the upper inner side of the housing 10 and the upper surface of the battery. In this way, the second seal seals the upper surface of the battery and the upper inner surface of the housing 10, at which point the bottom surface of the battery abuts against the bottom inner surface of the housing 10, thereby preventing oil leakage from the top.
[0132] According to some embodiments of this application, the second seal is an elastic seal.
[0133] The elastic seal in this embodiment can be rubber, sponge, etc., and is not limited here.
[0134] Since the second seal is an elastic seal, when the battery is placed inside the housing 10, the corresponding elastic seal can be compressed according to the distance between the upper side of the inside of the housing 10 and the upper surface of the battery, so as to be suitable for batteries of different sizes.
[0135] like Figure 6 As shown, this application also provides a battery testing system for any of the testing devices described in the embodiments of this application. The system includes a liquid storage unit 23, a power delivery unit 24, a cooling unit 26, and a reflux unit. The oil outlet of the liquid storage unit 23 is connected to the power delivery unit 24, the cooling unit 26, and the oil inlet pipe 11 in sequence via pipes. The liquid storage unit 23 is configured to store circulating medium. The power delivery unit 24 is configured to drive the circulation of the circulating medium. The cooling unit 26 is configured to cool the circulating medium. The reflux unit is configured to connect the oil outlet pipe 12 to the oil inlet of the liquid storage unit 23.
[0136] In this embodiment, the liquid storage unit 23 can be an oil storage tank, the power transmission unit 24 can be an oil pump, the cooling unit 26 can be a tubular cooler, and the reflux unit can be a return oil pump. The specifics can be determined according to the actual situation, and this specification does not limit them in this embodiment.
[0137] The specific structure of the measuring device in this embodiment refers to the above embodiments. Since the testing system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0138] According to some embodiments of this application, such as Figure 6 As shown, the test system also includes a flow regulation unit 25, which is disposed between the power transmission unit 24 and the cooling unit 26.
[0139] In this embodiment, the flow regulating unit 25 can be a speed regulating valve, which is not limited here.
[0140] During use, the flow rate of the corresponding circulating medium can be easily adjusted through the flow rate adjustment unit 25.
[0141] According to some embodiments of this application, such as Figure 6 As shown, the testing system also includes a first detection unit 27, which is located between the cooling unit 26 and the oil inlet pipe 11 and is configured to detect the pressure of the circulating medium.
[0142] In this embodiment, the first detection unit 27 can be a pressure gauge, which is not limited here.
[0143] During use, the pressure of the corresponding circulating medium can be easily detected through the first detection unit 27.
[0144] According to some embodiments of this application, such as Figure 6As shown, the testing system also includes a second detection unit 28, which is located between the first detection unit 27 and the oil inlet pipe 11 and is configured to detect the flow rate of the circulating medium.
[0145] In this embodiment, the second detection unit 28 can be a flow meter, which is not limited here.
[0146] In use, the flow rate of the corresponding circulating medium can be easily detected through the second detection unit 28.
[0147] According to some embodiments of this application, such as Figure 6 As shown, the testing system also includes a third detection unit 29, which is located between the second detection unit 28 and the oil inlet pipe 11 and is configured to detect the temperature of the circulating medium before it enters the oil inlet pipe 11.
[0148] In this embodiment, the third detection unit 29 can be a thermometer, which is not limited here.
[0149] During use, the temperature of the circulating medium before entering the oil inlet pipe can be easily detected through the third detection unit 29.
[0150] According to some embodiments of this application, such as Figure 6 As shown, the testing system also includes a fourth detection unit 30, which is located between the oil outlet pipe 12 and the oil inlet end of the liquid storage unit 23 and is configured to detect the temperature of the circulating medium after heat exchange.
[0151] In this embodiment, the fourth detection unit 30 can be a thermometer, which is not limited here.
[0152] During use, the temperature of the circulating medium after heat exchange can be easily detected through the fourth detection unit 30.
[0153] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A testing device for batteries, characterized in that, include: The housing has a sealed chamber inside, which is configured to accommodate a battery. The housing has a first groove and a second groove on opposite sides along a first direction. The first groove is configured to form an oil inlet chamber with the side wall of the battery, and the second groove is configured to form an oil outlet chamber with the other side wall of the battery. An oil inlet pipe is disposed in the housing and communicates with the oil inlet chamber; An oil outlet pipe is provided in the housing and communicates with the oil outlet chamber; A first conductive element is disposed in the housing and configured to be electrically connected to the positive terminal of the battery. A second conductive element is disposed in the housing and configured to be electrically connected to the negative terminal of the battery. At least two spacer bars are provided on at least one side of the battery along a second direction. A fluid channel is formed between two adjacent spacer bars. One end of the fluid channel is connected to the oil inlet chamber, and the other end of the fluid channel is connected to the oil outlet chamber. The first direction is the flow direction of the fluid in the fluid channel, and the second direction intersects with the first direction.
2. The battery testing apparatus according to claim 1, characterized in that, The housing includes a body and a plate. The body has an opening on one side along the second direction. The plate is connected to the opening side of the body, and the plate and the body together enclose the sealed chamber. The body has a first groove and a second groove respectively on opposite sides along the first direction inside the body. The oil inlet pipe, the oil outlet pipe, the first conductive element, and the second conductive element are all disposed on the main body.
3. The battery testing apparatus according to claim 2, characterized in that, It also includes two telescopic conductive elements, both of which are disposed inside the main body; The first conductive element and the second conductive element are respectively electrically connected to the two telescopic conductive elements.
4. The battery testing apparatus according to claim 3, characterized in that, The telescopic conductive component includes an insulating shell, a column, a movable plate, an elastic element, and a conductive needle. The insulating shell is fixed inside the main body, the column is disposed inside the insulating shell along a third direction, the movable plate is disposed inside the insulating shell, the movable plate is sleeved on the column, and the movable plate can move relative to the column along the third direction, the elastic member is sleeved on the column, and one end of the elastic member abuts against the movable plate; One end of the conductive needle is connected to the movable plate, and the other end of the conductive needle passes through the bottom surface of the insulating shell and is located in the sealed cavity. The first conductive element and the second conductive element are respectively electrically connected to the movable plate.
5. The battery testing apparatus according to claim 4, characterized in that, The surface of the conductive needle is provided with an anti-oxidation layer.
6. The testing apparatus for batteries according to claim 4, characterized in that, The first conductive element and / or the second conductive element is a conductive bolt, which is rotatably connected to the body and passes through the insulating shell to be electrically connected to the movable plate; When the conductive bolt rotates relative to the body, the conductive bolt can drive the insulating shell to move along the third direction.
7. The testing apparatus for batteries according to any one of claims 2 to 6, characterized in that, The main body is provided with an explosion-proof valve port.
8. The testing apparatus for batteries according to claim 7, characterized in that, It also includes a first seal, which is disposed inside the explosion-proof valve port.
9. The testing apparatus for batteries according to any one of claims 2 to 6, characterized in that, It also includes a pad, the pad being disposed on the side of the plate facing the battery, and / or, The pad is disposed inside the body on the side facing the battery.
10. The testing apparatus for batteries according to claim 9, characterized in that, The pad includes at least two stacked connecting plates that are detachably connected to each other.
11. The testing apparatus for batteries according to claim 9, characterized in that, The pad has a flexible layer on the side facing the battery.
12. The testing apparatus for batteries according to any one of claims 2 to 6, characterized in that, It also includes a sealing ring, which is disposed between the body and the plate.
13. The testing apparatus for batteries according to any one of claims 2 to 6, characterized in that, It also includes fasteners configured to connect the body to the plate.
14. The testing apparatus for batteries according to any one of claims 1 to 6, characterized in that, The spacer strip is a rubber strip.
15. The testing apparatus for batteries according to any one of claims 1 to 6, characterized in that, It also includes a second seal, which is disposed between the upper side of the inside of the housing and the upper surface of the battery.
16. The testing apparatus for batteries according to claim 15, characterized in that, The second seal is an elastic seal.
17. A testing system for batteries, used in the testing apparatus as described in any one of claims 1 to 16, characterized in that, include: Liquid storage unit, power transmission unit, cooling unit, and reflux unit; The oil outlet of the liquid storage unit is connected in sequence to the power transmission unit, the cooling unit and the oil inlet pipe through a pipeline. The liquid storage unit is configured to store the circulating medium, the power transmission unit is configured to drive the circulation of the circulating medium, and the cooling unit is configured to cool the circulating medium. The reflux unit is configured to connect the oil outlet pipe to the oil inlet of the liquid storage unit.
18. The battery testing system according to claim 17, characterized in that, It also includes a flow regulation unit, which is disposed between the power transmission unit and the cooling unit.
19. The battery testing system according to claim 17, characterized in that, It also includes a first detection unit, which is disposed between the cooling unit and the oil inlet pipe and is configured to detect the pressure of the circulating medium.
20. The battery testing system according to claim 19, characterized in that, It also includes a second detection unit, which is disposed between the first detection unit and the oil inlet pipe and is configured to detect the flow rate of the circulating medium.
21. The battery testing system according to claim 20, characterized in that, It also includes a third detection unit, which is disposed between the second detection unit and the oil inlet pipe and is configured to detect the temperature of the circulating medium before it enters the oil inlet pipe.
22. The battery testing system according to claim 17, characterized in that, It also includes a fourth detection unit, which is located between the oil outlet pipe and the oil inlet of the liquid storage unit and is configured to detect the temperature of the circulating medium after heat exchange.