CN117129887A - Battery module performance testing devices and equipment - Google Patents
Battery module performance testing devices and equipment Download PDFInfo
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- CN117129887A CN117129887A CN202311232238.2A CN202311232238A CN117129887A CN 117129887 A CN117129887 A CN 117129887A CN 202311232238 A CN202311232238 A CN 202311232238A CN 117129887 A CN117129887 A CN 117129887A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
本申请涉及一种电池模组性能检测装置及设备，电池模组性能检测装置包括机台、承载模组以及压头模组，其中：承载模组设置于机台，用于电池模组的承载；压头模组与承载模组间隔设置于机台，压头模组在机台上能够朝向靠近或远离承载模组的方向运动，压头模组包括发热件以及与发热件接触的导热件，导热件被配置为响应于压头模组与承载模组的抵接而与电池模组接触。本申请提供的电池模组性能检测装置，可对电池模组同步进行温度与压力检测，提高电池模组的检测效率，导热件直接与电池模组接触，可提高施加于电池模组上的温度控制精度，有利于对电池模组温度的控制，提高电池模组的检测可靠性，且可对电池模组进行多种温度环境的模拟检测。
This application relates to a battery module performance testing device and equipment. The battery module performance testing device includes a machine, a load-bearing module and a pressure head module. The load-bearing module is provided on the machine and is used to carry the battery module. ; The pressure head module and the load-bearing module are arranged on the machine platform at intervals. The pressure head module can move toward or away from the load-bearing module on the machine platform. The pressure head module includes a heating element and a heat conductive element in contact with the heating element. , the thermal conductive member is configured to contact the battery module in response to the contact between the pressure head module and the load-carrying module. The battery module performance detection device provided by this application can simultaneously detect the temperature and pressure of the battery module to improve the detection efficiency of the battery module. The thermal conductive member is in direct contact with the battery module and can increase the temperature applied to the battery module. The control accuracy is conducive to controlling the temperature of the battery module, improving the detection reliability of the battery module, and can simulate and detect the battery module in various temperature environments.
Description
Technical Field
The application relates to the technical field of battery performance detection, in particular to a battery module performance detection device and equipment.
Background
At present, the lithium ion battery has the advantages of high energy density, good cycle performance, green pollution-free property and the like, and is widely applied to the fields of digital products, electric automobiles, energy storage and the like. In order to ensure the performance of the produced battery, the battery needs to be charged and discharged for detection, and bad batteries and backward batteries are eliminated.
The detection of the charge and discharge performance of the battery can reflect the performance difference of the battery in practical application, the charge and discharge modes mainly can be divided into constant current, constant voltage, constant resistance and constant power charge and discharge, and the battery is charged and discharged in different modes to have larger influence on the capacity of the battery, and meanwhile, different characteristics of the battery can be reflected. However, when the battery is charged or discharged, a large amount of heat is released from the battery itself, and the charge or discharge performance of the battery changes with the change of temperature, so that the temperature needs to be controlled in order to improve the detection effect. At present, the constant temperature control is usually carried out on the detection environment of the battery, and the detection environment is single, so that the simulation cannot be carried out on various temperature environments at the same time, the temperature on the battery is not easy to control, and the pressure detection cannot be carried out on the battery at the same time in the temperature detection process of the battery.
Disclosure of Invention
Based on this, it is necessary to provide a device and equipment for detecting the performance of a battery module, which are necessary to solve the problems that the temperature and the pressure of the battery cannot be detected simultaneously and the temperature on the battery is not easy to control in the existing process of detecting the charge and discharge performance of the battery.
A battery module performance detection apparatus, the battery module performance detection apparatus comprising:
a machine table;
the bearing module is arranged on the machine and used for bearing the battery module;
the pressure head module is arranged on the machine table at intervals, the pressure head module can move towards the direction close to or far away from the bearing module, the pressure head module comprises a heating piece and a heat conducting piece in contact with the heating piece, and the heat conducting piece is configured to be in contact with the battery module in response to the butt joint of the pressure head module and the bearing module.
In one embodiment, the carrying module comprises a carrying plate and at least one clamping assembly arranged on the carrying plate, and the clamping assembly is used for clamping and fixing the battery module.
In one embodiment, the clamping assembly includes a base and a clamp plate pivotally connected to the base, the clamp plate configured to switch between a clamped state and an unlocked state in response to rotation of the clamp plate on the base; wherein:
in the unlocking state, an opening end for inserting the battery module is formed between the clamping plate and the base; and in the clamping state, a clamping space for placing the battery module is formed between the clamping plate and the base, and the clamping plate is pressed on the battery module.
In one embodiment, an electrode block is disposed in the clamping space, and when the battery module is located in the clamping space, the battery module is connected with the electrode block in a guiding manner.
In one embodiment, the electrode block is provided with a pressing block, the pressing block is embedded with at least one elastic piece, the elastic piece extends to the outer side of the pressing block and is connected with the opening end of the clamping plate through a bolt with the same height, and the deformation direction of the elastic piece is consistent with the movement direction of the pressure head module.
In one embodiment, the ram module further comprises a platen;
the pressure head module still includes heat dissipation module and control, heat dissipation module set up in on the clamp plate, generate heat the piece the heat conduction piece and the control all set up in the heat dissipation module, just the control with generate heat a communication connection.
In one embodiment, the heat conducting member includes a heat conducting plate and at least one heat conducting silica gel member embedded on the heat conducting plate, the heat conducting plate is disposed in the heat dissipating module and contacts with the heat generating member, and the heat conducting silica gel member is configured to contact with the battery module in response to the contact between the pressure head module and the bearing module.
In one embodiment, the ram module further comprises a first temperature sensor and at least one second temperature sensor; wherein,
the first temperature sensor is embedded in the heat dissipation module and used for acquiring the temperature of the heat conducting plate;
the second temperature sensor is embedded in the heat-conducting plate and used for acquiring the temperature of the heat-conducting silica gel piece.
In one embodiment, the battery module performance detection device further includes a pressure detection module, the pressure detection module is disposed on the machine, and the pressure detection module is configured to obtain the pressure on the battery module.
A battery module performance detection apparatus, the battery module performance detection apparatus comprising:
a frame;
the battery module performance detection device according to any one of the above technical solutions, wherein the machine is disposed on the frame;
the box body is arranged on the rack, covers the outer side of the battery module performance detection device, and is provided with a plurality of heat dissipation modules.
According to the battery module performance detection device and the battery module performance detection equipment, when the battery module is required to be subjected to performance detection, the battery module is placed on the bearing module, the pressure head module is driven to move towards the direction close to the bearing module, when the pressure head module is abutted to the battery module, the pressure head module applies preset pressure on the battery module, and meanwhile, the heat generated by the heating piece is directly conducted onto the battery module through the heat conducting piece, so that the battery module is subjected to performance detection under the environment conditions of preset pressure and preset temperature. The battery module performance detection device provided by the application can synchronously detect the temperature and the pressure of the battery module, improves the detection efficiency of the battery module, can improve the temperature control precision applied to the battery module by directly contacting the heat conducting piece with the battery module, is beneficial to controlling the temperature of the battery module, improves the detection reliability of the battery module, and can adjust the detection temperature environment of the battery module by changing the heating value of the heating piece so as to carry out the simulation detection of various temperature environments of the battery module.
Drawings
Fig. 1 is a schematic structural view of a battery module performance detection apparatus provided in some embodiments.
Fig. 2 is a schematic structural diagram of a carrier module provided in some embodiments.
Fig. 3 is an exploded view of a carrier module provided in some embodiments.
Fig. 4 is a schematic structural view of a carrier plate provided in some embodiments.
Fig. 5 is a schematic structural diagram of a ram module provided in some embodiments.
Fig. 6 is an exploded view of a carrier module provided in some embodiments.
Fig. 7 is a schematic structural diagram of a load module, a ram module, a driving module, and a pressure detecting module according to some embodiments.
Fig. 8 is a schematic structural view of a battery module performance detection apparatus provided in some embodiments.
Reference numerals:
100. a battery module performance detection device;
110. a machine table; 111. a guide post;
120. a carrying module; 121. a carrier plate; 1211. a heat conductive silica gel section; 122. a clamping assembly; 1221. a base; 1222. a clamping plate; 1223. a pin shaft; 1224. a torsion spring; 123. a carrying plate; 1231. a limiting block; 1232. a carrying space; 1233. a photoelectric sensor; 124. an electrode block; 125. a connector; 126. briquetting; 127. an elastic member; 128. a contour bolt; 129. a protective plate; 1291. a through hole; 130. a pressure head module; 131. a heat generating member; 132. a heat conductive member; 1321. a heat conductive plate; 1322. a thermally conductive silicone member; 133. a pressing plate; 1331. a linear bearing; 1332. a first reinforcing plate; 1333. a second reinforcing plate; 1334. a connecting plate; 1335. a groove is embedded; 134. a heat dissipation module; 135. a first temperature sensor; 136. a second temperature sensor; 137. fixing the pressing block; 140. a driving module; 150. a pressure detection module; 151. a membrane pressure sensor; 152. a pressure gauge;
200. a battery module;
300. a battery module performance detection device;
310. a frame; 320. a case; 321. a heat dissipation module; 322. a temperature control meter; 323. and (5) a preview window.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
The following describes the technical scheme provided by the embodiment of the application with reference to the accompanying drawings.
As shown in fig. 1-3, the present application provides a battery module performance detecting device 100, where the battery module performance detecting device 100 includes a machine 110, a carrier module 120, and a press head module 130 for performing performance detection on a battery module 200. In this embodiment, the battery module performance detection device 100 is configured to perform performance detection on the battery module 200. In other possible embodiments, the battery module performance detection device 100 may be further configured to perform performance detection on a chip, an electronic control board, or the like.
The carrying module 120 is disposed on the machine 110, so that the carrying module 120 is fixed on the machine 110, and the carrying module 120 is used for carrying and placing the battery module 200, so as to fix the battery module 200 on the battery module performance detecting device 100 for performance detection. It should be noted that, in this embodiment, as shown in fig. 4, the battery module performance detecting device 100 further includes a carrying plate 123, the carrying plate 123 is disposed on the machine 110 by screwing, welding, etc., a plurality of limiting blocks 1231 are disposed on the carrying plate 123 in a protruding manner, a carrying space 1232 is formed between the plurality of limiting blocks 1231 and the carrying plate 123, and the carrying space 1232 is used for placing the carrying module 120, so as to detachably dispose the carrying module 120 on the machine 110. When the carrier module 120 is disposed in the carrier space 1232, the plurality of limiting blocks 1231 abut against the side walls of the carrier module 120 to limit the position of the carrier module 120 on the carrier plate 123. Preferably, the plurality of limiting blocks 1231 are slidably disposed on the carrying plate 123, and the size of the carrying space 1232 is adjusted by adjusting the positions of the plurality of limiting blocks 1231 on the carrying plate 123, so as to accommodate the accommodating placement of the carrying modules 120 with different specifications. In addition, the supporting plate 123 is provided with a photoelectric sensor 1233, and the photoelectric sensor 1233 can sense whether the supporting plate 123 is provided with the supporting module 120, and feed back the information about whether the supporting module 120 is in place to the operator, so as to prompt the operator to perform the subsequent operation.
The ram module 130 is disposed on the machine 110, and the ram module 130 is disposed at an interval with the carrier module 120, where the ram module 130 can move on the machine 110 in a direction approaching or separating from the carrier module 120. The pressure head module 130 includes a heat generating element 131 and a heat conducting element 132, wherein the heat conducting element 132 contacts with the heat generating element 131, so that heat generated by the heat generating element 131 can be directly conducted to the heat conducting element 132. The heat conductive member 132 is configured to contact the battery module 200 in response to the abutment of the ram module 130 with the carrier module 120, in other words, when the ram module 130 moves toward the carrier module 120 and abuts on the carrier module 120, the heat conductive member 132 contacts the battery module 200. Specifically, when the performance of the battery module 200 is to be detected, the battery module 200 is placed on the carrier module 120, and the pressure head module 130 is driven to move towards the direction close to the carrier module 120, when the pressure head module 130 abuts against the battery module 200, the pressure head module 130 applies a preset pressure on the battery module 200, and the heat conducting member 132 directly conducts the heat generated by the heat generating member 131 to the battery module 200, so that the battery module 200 can perform performance detection under the preset pressure and the preset temperature conditions. And after the performance of the battery module 200 is detected, the pressure head module 130 is driven to move towards a direction away from the bearing module 120, so that the detected battery module 200 can be conveniently detached and replaced.
According to the battery module performance detection device 100 provided by the application, temperature and pressure detection can be synchronously performed on the battery module 200, the detection efficiency of the battery module 200 is improved, the heat conduction member 132 is directly contacted with the battery module 200, the temperature control precision applied to the battery module 200 can be improved, the control of the temperature of the battery module 200 is facilitated, the detection reliability of the battery module 200 is improved, and the detection temperature environment of the battery module 200 can be adjusted by changing the heating value of the heating member 131 so as to perform simulation detection of various temperature environments on the battery module 200.
In an embodiment, as shown in fig. 1-3, the carrier module 120 includes a carrier 121 and at least one clamping assembly 122, the clamping assembly 122 is disposed on the carrier 121, and the clamping assembly 122 is used for clamping and fixing the battery module 200, so as to fix the battery module 200 on the battery module performance detecting device 100 for performance detection. In this embodiment, the number of the clamping assemblies 122 is preferably plural, and the plurality of battery modules 200 can be clamped and fixed on the battery module performance detecting device 100 by the plurality of clamping assemblies 122, so as to detect the performance of the plurality of battery modules 200 at the same time, thereby improving the performance detecting efficiency of the battery modules 200.
Further, as shown in fig. 1-3, the clamping assembly 122 includes a base 1221 and a clamping plate 1222, wherein the base 1221 is disposed on the carrier plate 121 by screwing, welding, etc., and the clamping plate 1222 is pivotally connected to the base 1221. As in the present embodiment, one of the ends of the clamping plate 1222 is rotatably connected to the base 1221 through a pin 1223, and a torsion spring 1224 is provided at the connection between the clamping plate 1222 and the base 1221, and the torsion spring 1224 is used for restoring the clamping plate 1222 when the clamping plate 1222 rotates around the pin 1223 relative to the base 1221. The clamp plate 1222 is configured to switch between a clamped state and an unlocked state in response to rotation of the clamp plate 1222 on the base 1221, in other words, the clamp plate 1222 has a clamped state and an unlocked state, the clamp plate 1222 switching between the clamped state and the unlocked state when the clamp plate 1222 is rotated on the base 1221. Wherein, in the unlocked state, an open end into which the power supply module 200 is inserted is formed between the clamping plate 1222 and the base 1221; in the clamped state, a clamping space is formed between the clamping plate 1222 and the base 1221, the clamping space is used for placing the battery module 200, and when the battery module 200 is placed in the clamping space, the clamping plate 1222 is pressed on the battery module 200 to clamp and fix the battery module 200 on the base 1221. Specifically, when the operator applies a force to the connection end of the clamping plate 1222 and the base 1221 and rotates the clamping plate 1222 relative to the base 1221, the clamping plate 1222 is opened relative to the base 1221 and an opening end into which the power module 200 is inserted is formed between the clamping plate 1222 and the base 1221, and when the battery module 200 is inserted between the clamping plate 1222 and the base 1221, the operator removes the force applied to the clamping plate 1222, and the clamping plate 1222 is restored and pressed against the battery module 200 by the elasticity of the torsion spring 1224 to clamp and fix the battery module 200 to the base 1221.
In order to perform the charge-discharge performance test on the battery module 200, in one embodiment, as shown in fig. 1 to 3, the electrode block 124 is disposed in the clamping space. When the battery module 200 is located in the clamping space, the battery module 200 is connected with the electrode block 124 in a conductive manner, and the battery module 200 is powered by the electrode block 124, so that the battery module 200 can be electrified and charged and discharged. As in the present embodiment, the electrode block 124 is further communicatively connected with the connector 125, the battery module 200 has a lead terminal, and when the battery module 200 is located in the clamping space, the lead terminal of the battery module 200 is plugged onto the electrode block 124 to achieve conductive connection between the battery module 200 and the electrode block 124, and the battery module 200 is powered by the connector 125 and the electrode block 124, so that the battery module 200 can be powered on and perform charging and discharging operations.
Further, as shown in fig. 1-3, the electrode block 124 is provided with a pressing block 126, and the electrode block 124 is pressed on the base 1221 by the pressing block 126, so as to prevent the electrode block 124 from shifting in position during the long-term detection process, thereby improving the reliability of the conductive connection position between the battery module 200 and the electrode block 124. The briquetting 126 is embedded with at least one elastic component 127, the elastic component 127 part stretches out to the briquetting 126 outside, and the tip that the elastic component 127 stretches out to the briquetting 126 outside is connected with the open end of splint 1222 through the bolt 128 of contour, when splint 1222 is in the grip state, adjust the interval between splint 1222 open end and the base 1221 through the bolt 128 of contour, because elastic component 127 can take place elastic deformation, can make splint 1222 have certain floating amount, and then adjust the centre gripping space size, can satisfy the centre gripping of different thickness specification battery module 200, can avoid battery module 200 because the interference of splint 1222 can't the centre gripping in place again, and then guarantee that battery module 200 can with electrode piece 124 alignment guide. The elastic deformation direction of the elastic member 127 is consistent with the movement direction of the pressure head module 130, when the pressure head module 130 abuts against and applies pressure on the battery module 200, the elastic member 127 can buffer the acting force of the pressure head module 130, so as to prevent the pressure head module 130 from directly acting on the battery module 200 to cause damage to the battery module 200 in the abutting process.
In this embodiment, the elastic member 127 is a return spring. In other possible embodiments, the elastic member 127 may be an elastic sheet or other elastic member, and the present application is not limited with respect to the specific type of the elastic member 127.
As shown in fig. 2 and 3, the carrier plate 121 is provided with the thermally conductive silicone parts 1211 corresponding to the clamping units 122, that is, the number of thermally conductive silicone parts 1211 is identical to the number of clamping units 122. When the battery module 200 is fixed on the base 1221, the battery module 200 is partially attached to the thermally conductive silicone part 1211. Because the battery module 200 expands in volume during the detection of the charge and discharge performance, and heat is generated, the battery module 200 is partially attached to the heat conductive silicone part 1211, when the battery module 200 expands in volume during the detection of the charge and discharge performance and presses the heat conductive silicone part 1211, the heat conductive silicone part 1211 deforms to provide a space for allowing the battery module 200 to expand, and the heat conductive silicone part 1211 can rapidly conduct the heat generated by the battery module 200 to the outside, so as to avoid the fluctuation influence of the heat accumulation generated inside the battery module 200 on the detection temperature of the battery module 200, and further improve the reliability of the detection result of the battery module 200.
In this embodiment, as shown in fig. 2 and 3, a protection plate 129 is disposed on the carrier 121. The protection plate 129 is disposed on the carrier plate 121 by screwing, welding, or the like, and the protection plate 129 is covered on the clamping assembly 122. The protection plate 129 is provided with through holes 1291 for the rotation of the clamping plates 1222, that is, the number of through holes 1291 formed in the protection plate 129 is identical to the number of the clamping assemblies 122, the through holes 1291 in the protection plate 129 can prevent the rotation of the clamping plates 1222 from being affected, and the circuits of the electrode blocks 124, the connectors 125 and other components can be regulated between the protection plate 129 and the carrier plate 121, the circuits are protected by the protection plate 129, and the overall cleanliness of the carrier module 120 is ensured.
In order to drive the ram module 130 to move toward or away from the carrier module 120, in one embodiment, as shown in fig. 1, 5 and 6, the ram module 130 further includes a platen 133. The platen 133 is provided with a plurality of linear bearings 1331 at intervals in the circumferential direction, as shown in fig. 6 in the present embodiment, the number of the linear bearings 1331 is four, and the four linear bearings 1331 are located at four diagonal corners of the platen 133, respectively. The heating element 131 and the heat conducting element 132 are disposed on the pressing plate 133, so as to realize the installation and fixation of the heating element 131 and the heat conducting element 132. The machine 110 is provided with a plurality of guide posts 111, and a plurality of linear bearings 1331 are mutually matched with the plurality of guide posts 111, for example, the plurality of linear bearings 1331 are correspondingly sleeved on the plurality of guide posts 111, and the extending direction of the plurality of guide posts 111 is consistent with the moving direction of the pressure head module 130. When the acting force is applied to the pressing plate 133, the pressing plate 133 can drive the heating element 131 and the heat conducting element 132 to move towards the direction close to or far away from the bearing module 120, and in the moving process of the pressing plate 133, the guide post 111 can guide the moving direction of the pressing plate 133, so that the deviation of the abutting position of the pressing plate 133 and the bearing module 120 is avoided, and the linear bearing 1331 has the advantage of small friction, so that the pressing plate 133 can be prevented from being worn out greatly in the moving process of the guide post 111, and the stability of the pressing plate 133 in the moving process is ensured.
In this embodiment, as shown in fig. 6, the pressing plate 133 is further provided with a first reinforcing plate 1332 and a second reinforcing plate 1333 in a stacked manner, and the structural strength of the pressing plate 133 can be improved by the first reinforcing plate 1332 and the second reinforcing plate 1333, so that the pressing plate 133 is prevented from being deformed or even broken due to the excessive driving force.
Specifically, as shown in fig. 1, 6 and 7, the battery module performance detecting device 100 further includes a driving module 140, the driving module 140 is disposed on the machine 110, and the driving module 140 is in transmission connection with the ram module 130, and the driving module 140 is used for driving the ram module 130 to move in a direction approaching or separating from the carrier module 120. In this embodiment, the driving module 140 is provided with a pressure sensor, and the pressure sensor can feed back the pressure in the pressing process of the driving module 140, and feed back the pressure in the pressing process of the driving module 140 to the control module, so that the control module can adjust the pressure in the pressing process of the driving module 140 in real time. The pressing plate 133 is provided with a connecting plate 1334, and the driving module 140 is disposed on the connecting plate 1334, so that the driving module 140 is indirectly fixed on the machine 110. The driving module 140 is an electric cylinder, the pressing plate 133 is connected to the output end of the driving module 140, when the driving module 140 outputs power, the power can be output to the pressing plate 133 to drive the pressing head module 130 to move towards the direction close to or far away from the bearing module 120, the pressure sensor feeds back the pressure in the pressing process of the driving module 140, and the pressure signal is fed back to the control module, and the control module adjusts the pressure in the pressing process of the driving module 140 in real time.
It should be noted that, the driving module 140 is not limited to the above-provided electric cylinder, but may be other elements capable of outputting power, such as a servo motor, an oil cylinder, etc., and the present application is not limited to the specific type of the driving module 140.
In order to complete the construction operation of the battery module 200 in the preset temperature environment, in one embodiment, as shown in fig. 1, 3 and 6, the pressure head module 130 further includes a heat dissipation module 134 and a control member. The heat dissipation module 134 is disposed on the pressing plate 133, for example, an embedded groove 1335 is formed on the pressing plate 133, and the heat dissipation module 134 is embedded in the embedded groove 1335, so as to realize the installation and fixation of the heat dissipation module 134 on the pressing plate 133. The heating element 131, the heat conducting element 132 and the control element are all arranged in the heat dissipation module 134, and the control element is in communication connection with the heating element 131. Conventionally, the battery module is directly placed in an environment with a preset temperature, the temperature of the battery module is not easy to control, and the environment where the battery module is located needs a long time to build, so that the detection efficiency of the battery module is seriously affected. According to the battery module performance detection device 100 provided by the application, whether the heat generating work of the heating element 131 is performed or not and the quantity of the generated heat are controlled by the control element, and the heat generated by the heating element 131 is directly transmitted to the battery module 200 by the heat conducting element 132, so that the temperature on the battery module 200 is easy to control, the heat transmission time is short, and the detection efficiency and the detection result reliability of the battery module 200 can be obviously improved.
Further, as shown in fig. 1, 3 and 6, the heat conducting member 132 includes a heat conducting plate 1321 and at least one heat conducting silica gel member 1322 embedded on the heat conducting plate 1321. The heat conducting plate 1321 is disposed in the heat dissipating module 134, and the heat conducting plate 1321 contacts with the heat generating element 131, so that the heat generated on the heat generating element 131 can be directly conducted to the heat conducting plate 1321 and further conducted to the heat conducting silica gel element 1322. The heat-conducting silicone member 1322 is configured to contact the battery module 200 in response to the contact between the pressure head module 130 and the carrier module 120, in other words, when the pressure head module 130 contacts the carrier module 120, the heat-conducting silicone member 1322 contacts the battery module 200, so that the heat generated by the heat-generating member 131 can be directly conducted to the battery module 200, and the battery module 200 can perform performance detection under the preset temperature condition. According to the battery module performance detection device 100 provided by the application, as the heat-conducting silica gel piece 1322 has flexibility and can deform, when the heat-conducting silica gel piece 1322 is contacted with the battery module 200, the heat-conducting silica gel piece 1322 deforms and is attached to the battery module 200, so that the uniformity of heat conducted to the battery module 200 by the heat-conducting silica gel piece 1322 can be improved, and the temperature control precision in the performance detection process of the battery module 200 is further improved. It should be noted that the number of the thermally conductive silicone members 1322 is preferably consistent with the number of the battery modules 200 to be tested.
In this embodiment, the control element is a PLC logic controller, the heating element 131 is a cooling plate, and the heat conducting element 132 is disposed on a side of the cooling plate that generates heat. When the control member sends a command to the heating member 131 and controls the heating member 131 to generate heat, the heat generated by the heating member 131 is transferred to the heat conducting member 132 and further transferred to the battery module 200 through the heat conducting member 132, so as to provide a temperature required in the performance detection process of the battery module 200. Of course, in other possible embodiments, the control element may be a chip or other control element, and the heat generating element 131 may be a resistance wire or other heat generating element, and the application is not limited to the specific type of the control element and the heat generating element 131.
In order to further improve the reliability of the performance test result of the battery module 200, in one embodiment, as shown in fig. 3 and 6, the pressure head module 130 further includes a first temperature sensor 135 and at least one second temperature sensor 136. The first temperature sensor 135 is embedded on the heat dissipation module 134, the first temperature sensor 135 is used for obtaining the temperature of the heat conducting plate 1321, the second temperature sensor 136 is embedded on the heat conducting plate 1321, and the second temperature sensor 136 is used for obtaining the temperature of the heat conducting silica gel piece 1322. The first temperature sensor 135 and the second temperature sensor 136 are respectively provided with a fixed pressing block 137, and the fixed pressing blocks 137 are pressed on the first temperature sensor 135 and the second temperature sensor 136 to ensure the installation stability of the first temperature sensor 135 on the heat dissipation module 134 and the installation stability of the second temperature sensor 136 on the heat conducting plate 1321. In this embodiment, the first temperature sensor 135 and the second temperature sensor 136 are both in communication connection with the control member, when the first temperature sensor 135 and/or the second temperature sensor 136 obtain that the temperature deviates from the preset temperature, the first temperature sensor 135 and/or the second temperature sensor 136 feed back the temperature deviation signal to the control member, and adjust the heat generating amount of the heat generating member 131 through the control member, so as to accurately control the temperatures of the heat conducting plate 1321 and the heat conducting silica gel member 1322, so that the temperature transmitted to the battery module 200 through the heat conducting silica gel member 1322 is consistent with the preset temperature, and further improve the reliability of the performance detection result of the battery module 200.
In this embodiment, at least one heat dissipating member is further disposed on the heat dissipating module 134. Because the heat generating element 131 and the heat generating element 131 are accompanied by the diffusion of part of heat into the heat dissipating module 134 during the heat conduction process, the heat accumulated in the heat dissipating module 134 is timely conducted to the outside through the heat dissipating element (such as a heat dissipating fan, a heat dissipating fin, etc.), so that the heat accumulated in the heat dissipating module 134 is prevented from interfering with the heat on the heat conducting element 132, the heat on the heat conducting element 132 is kept within a preset temperature range, and the temperature controllability of the heat conducted to the battery module 200 through the heat conducting element 132 is further improved.
In order to monitor the pressure applied by the ram module 130 to the carrier module 120, in one embodiment, as shown in fig. 1, 6 and 7, the battery module performance detecting apparatus 100 further includes a pressure detecting module 150. The pressure detection module 150 is disposed on the machine 110, and the pressure detection module 150 is configured to obtain the pressure on the battery module 200. When the pressure of the pressure head module 130 acting on the battery module 200 deviates from the preset pressure, the pressure detection module 150 feeds back a pressure deviation signal to the control module or the operator, and the control module or the operator adjusts the output power of the driving module 140 to timely adjust the pressure of the pressure head module 130 acting on the battery module 200, so that the battery module 200 can perform performance detection under the preset pressure condition, and the performance detection reliability of the battery module 200 is improved.
In this embodiment, as shown in fig. 7, the pressure detection module 150 includes a film pressure sensor 151 and a pressure gauge 152 communicatively connected to the film pressure sensor 151. The film pressure sensor 151 is disposed on the frame 310 and is located above the bearing module 120, when the pressure head module 130 moves towards the direction close to the bearing module 120, the pressure head module 130 is firstly in contact with the film pressure sensor 151 and transmits pressure to the battery module 200 through the film pressure sensor 151, in the pressing process of the pressure head module 130, the pressure of the pressure head module 130 acting on the battery module 200 is fed back to the pressure measuring instrument 152 by the film pressure sensor 151, the pressure of the pressure head module 130 acting on the battery module 200 is displayed and fed back to an operator by the pressure measuring instrument 152, so that the operator can adjust the pressure of the pressure head module 130 acting on the battery module 200 in time. Moreover, since the film pressure sensor 151 has flexibility, the film pressure sensor 151 can be pulled up or put down when being stressed, so that the film pressure sensor 151 has a certain abdication space in the process of disassembling and assembling the battery module 200, thereby facilitating the disassembly and assembly operation of the battery module 200. It should be noted that, the pressure detecting module 150 is not limited to the combination of the film pressure sensor 151 and the pressure measuring instrument 152, but may be a pressure sensor or other elements capable of obtaining the pressure, and the specific type of the pressure detecting module 150 is not limited to the present application.
In addition, as shown in fig. 1 and 8, the present application further provides a battery module performance detection apparatus 300, where the battery module performance detection apparatus 300 includes a rack 310, a battery module performance detection device 100 as described in the above technical solution, and a case 320. The machine 110 is disposed on the frame 310 by screwing, welding, etc., the box 320 is disposed on the frame 310 by screwing, clamping, etc., and the box 320 is covered on the outer side of the battery module performance detecting device 100, so as to create a closed environment for the battery module performance detecting device 100, and improve the environmental stability and safety of the battery module performance detecting device 100 in the performance detecting process of the battery module 200.
Be provided with a plurality of heat dissipation module 321 on the box 320, heat dissipation module 321 is for setting up radiator fan, the heat dissipation net etc. on box 320, because battery module 200 can accompany the production of heat in charge-discharge performance testing process, this part heat can disperse to box 320 inside, discharge the heat of the inside gathering of box 320 to the external world through heat dissipation module 321, in order to guarantee that box 320 inside temperature is in a lower level all the time, prevent that box 320 internal environment is too high from causing the interference to battery module 200's detection environment, can lead to the damage of battery module 200 even. And a temperature control meter 322 is provided on the case 320 to monitor the temperature of the internal environment of the case 320, thereby preventing the internal environment of the case 320 from being excessively high to interfere with the temperature environment of the battery module 200. The box 320 is further provided with a preview window 323, a maintenance window and a safety door, the preview window 323 is a transparent glass piece, the performance detection process of the battery module 200 is visualized in the detection process of the battery module performance detection device 100 through the preview window 323, and when the internal components of the battery module performance detection device 100 are damaged, the damaged components can be maintained or replaced through the maintenance window. The safety door is pivotally connected to the case 320, and is in a normally closed state in the process of detecting the battery module 200 by the battery module performance detecting device 100, so as to ensure the stability and safety of the battery module 200 in the detecting process, and after the detection of the battery module 200 is completed, the safety door is opened, so that the detected battery module 200 is conveniently taken out, or the replaced battery module 200 is re-entered into the case 320 through the safety door to perform performance detection, thereby improving the convenience of the battery module performance detecting device 300.
It should be noted that, an operation button (such as a reset button, a start-stop button, etc.) may be further disposed on the case 320, and an operator may operate the battery module performance detection device 100 through the operation button outside the case 320, so as to further improve the convenience of the battery module performance detection apparatus 300. As to what type of operation buttons are provided on the case 320, the setting can be made according to the detection requirements, and the present application is not limited.
The following describes in detail the detection process of the battery module by the battery module performance detection apparatus 300 according to the present application with reference to fig. 1 to 8.
First, the safety door is opened, and the carrying module 120 is detachably disposed on the machine 110, so that the connection between the carrying module 120 and the machine 110 is released, and the carrying module 120 is taken out from the box 320. Then, a force is applied to the connection end of the clamping plate 1222 and the base 1221 and the clamping plate 1222 is rotated with respect to the base 1221, the clamping plate 1222 is opened with respect to the base 1221 and an opening end into which the power supply module 200 is inserted is formed between the clamping plate 1222 and the base 1221, and the battery module 200 is inserted between the clamping plate 1222 and the base 1221 for clamping and fixing. Then, the operator pulls up the film pressure sensor 151 while reconnecting the carrier module 120 to which the battery module 200 is fixed to the machine 110, and completes the connection between the connector 125 and the electrode block 124, removes the force applied to the film pressure sensor 151, and restores the film pressure sensor 151 to its original position. Continuing to close the safety door, driving the pressure head module 130 to move towards the direction close to the bearing module 120, when the pressure head module 130 is abutted against the battery module 200, setting the temperature of heat generated by the heating element 131 to be a certain value within the range of 10-90 ℃ so that the heat conducted by the heat conducting element 132 to the battery module 200 is consistent with the preset temperature, setting the pressure of the driving module 140 to be a certain value within the range of 700-1000N, enabling the driving module 140 to contact the film pressure sensor 151, enabling the film pressure sensor 151 to feed back the pressure on the battery module 200 in real time, enabling the connector 125 to conduct the electrode block 124 and supplying power to the battery module 200, and enabling the battery module 200 to perform charge and discharge tests under the preset temperature and pressure conditions. Then, after the test of the battery module 200 is completed, the safety door is opened, the operator pulls up the film pressure sensor 151, and removes the carrier module 120 from the case 320, disconnecting the connector 125. Finally, the battery module 200 is taken out from the carrier module 120, and the temperature and pressure test of the battery module 200 is completed.
In the present embodiment, the pressure applied to the battery module 200 is set after the temperature applied to the battery module 200 is set. However, in other possible embodiments, the pressure applied to the battery module 200 may be set first, and then the temperature applied to the battery module 200 may be set. The order of the temperature and the pressure applied to the battery module 200 is not limited in the present application.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. The utility model provides a battery module performance detection device which characterized in that, battery module performance detection device includes:
a machine table;
the bearing module is arranged on the machine and used for bearing the battery module;
the pressure head module is arranged on the machine table at intervals, the pressure head module can move towards the direction close to or far away from the bearing module, the pressure head module comprises a heating piece and a heat conducting piece in contact with the heating piece, and the heat conducting piece is configured to be in contact with the battery module in response to the butt joint of the pressure head module and the bearing module.
2. The battery module performance detection device according to claim 1, wherein the carrier module comprises a carrier plate and at least one clamping assembly arranged on the carrier plate, and the clamping assembly is used for clamping and fixing the battery module.
3. The battery module performance detection device of claim 2, wherein the clamping assembly comprises a base and a clamping plate pivotally connected to the base, the clamping plate configured to switch between a clamped state and an unlocked state in response to rotation of the clamping plate on the base; wherein:
in the unlocking state, an opening end for inserting the battery module is formed between the clamping plate and the base; and in the clamping state, a clamping space for placing the battery module is formed between the clamping plate and the base, and the clamping plate is pressed on the battery module.
4. The battery module performance detection device according to claim 3, wherein an electrode block is provided in the clamping space, and the battery module is connected to the electrode block when the battery module is positioned in the clamping space.
5. The battery module performance detection device according to claim 4, wherein a pressing block is arranged on the electrode block, at least one elastic piece is embedded in the pressing block, the elastic piece extends out of the pressing block and is connected with the opening end of the clamping plate through a bolt with the same height, and the deformation direction of the elastic piece is consistent with the movement direction of the pressure head module.
6. The battery module performance inspection apparatus according to claim 1, wherein the pressure head module further comprises a pressure plate;
the pressure head module still includes heat dissipation module and control, heat dissipation module set up in on the clamp plate, generate heat the piece the heat conduction piece and the control all set up in the heat dissipation module, just the control with generate heat a communication connection.
7. The battery module performance detection device of claim 6, wherein the thermally conductive member comprises a thermally conductive plate and at least one thermally conductive silicone member embedded on the thermally conductive plate, the thermally conductive plate being disposed within the heat dissipation module and in contact with the heat generating member, the thermally conductive silicone member being configured to contact the battery module in response to the pressure head module abutting the load bearing module.
8. The battery module performance detection device of claim 7, wherein the ram module further comprises a first temperature sensor and at least one second temperature sensor; wherein,
the first temperature sensor is embedded in the heat dissipation module and used for acquiring the temperature of the heat conducting plate;
the second temperature sensor is embedded in the heat-conducting plate and used for acquiring the temperature of the heat-conducting silica gel piece.
9. The battery module performance detection device of claim 1, further comprising a pressure detection module disposed on the machine, the pressure detection module configured to obtain a magnitude of pressure on the battery module.
10. A battery module performance detection apparatus, characterized in that the battery module performance detection apparatus includes:
a frame;
the battery module performance detection device according to any one of claims 1 to 9, the machine being provided to the frame;
the box body is arranged on the rack, covers the outer side of the battery module performance detection device, and is provided with a plurality of heat dissipation modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311232238.2A CN117129887A (en) | 2023-09-22 | 2023-09-22 | Battery module performance testing devices and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311232238.2A CN117129887A (en) | 2023-09-22 | 2023-09-22 | Battery module performance testing devices and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117129887A true CN117129887A (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311232238.2A Pending CN117129887A (en) | 2023-09-22 | 2023-09-22 | Battery module performance testing devices and equipment |
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| CN (1) | CN117129887A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI885629B (en) * | 2023-12-04 | 2025-06-01 | 國家中山科學研究院 | Battery Assembly Pressure Test Equipment |
| WO2025112391A1 (en) * | 2023-11-30 | 2025-06-05 | 苏州华兴源创科技股份有限公司 | Test fixture and device |
-
2023
- 2023-09-22 CN CN202311232238.2A patent/CN117129887A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025112391A1 (en) * | 2023-11-30 | 2025-06-05 | 苏州华兴源创科技股份有限公司 | Test fixture and device |
| TWI885629B (en) * | 2023-12-04 | 2025-06-01 | 國家中山科學研究院 | Battery Assembly Pressure Test Equipment |
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