Battery cell test auxiliary tool and battery cell test system

Abstract

The utility model discloses a battery cell test auxiliary tool and a battery cell test system. The tool comprises a clamp and a detection platform, a clamping space is arranged in the clamp, a to-be-detected cell is placed in the clamping space, and a first male plug and a second male plug are arranged on the two sides of the clamp; a plurality of test clamping grooves are formed in the detection platform, and the clamps have a first state of being inserted into the test clamping grooves and a second state of being pulled out of the test clamping grooves; a first female plug and a second female plug are arranged on two sides of each test card slot, and are electrically connected with the charging and discharging equipment through corresponding wires; and in the first state, the first male plug and the second male plug are electrically connected with two tabs of the to-be-tested battery cell, the first male plug is matched with the first female plug in a plugging manner, and the second male plug is matched with the second female plug in a plugging manner, so that the to-be-tested battery cell is electrically connected with the charging and discharging equipment to form a charging and discharging loop. The tool can avoid disordered arrangement of wires of a detection platform, realizes ordered placement of battery cells, and improves the battery cell test accuracy.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery technical field, concretely relates to a kind of electric core test auxiliary tool and electric core test system. BACKGROUND

[0002] The detection platform of existing electric core is directly connected with charge-discharge equipment by wire, on the one hand, in the case where the number of test channels is large, there are detection platform wire harness disorder, test electric core sample disorder placement, and electric core sample and test channel connection error, on the other hand, it needs to spend more time to install and remove detection platform, which affects the test efficiency of electric core, and causes misjudgment or leakage of electric core etc. UTILITY MODEL CONTENTS

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide an electric core test auxiliary tool and electric core test system.

[0004] The first aspect of the utility model provides an electric core test auxiliary tool, comprising:

[0005] Clamp, the clamping space is provided in the clamp, the clamping space is used to place the electric core to be measured, the two sides of the clamp are provided with first male plug and second male plug respectively;

[0006] Detection platform, the detection platform is provided with a plurality of interval test card slots, the clamp has the first state of inserting the test card slot and the second state of pulling out from the test card slot;The two sides of each test card slot are provided with first female plug and second female plug respectively, and the first female plug and the second female plug are electrically connected with charge-discharge equipment through corresponding wire;

[0007] In the first state, the first male plug and the second male plug are used to be electrically connected with the two tab of the electric core to be measured, the first male plug is inserted with the first female plug, and the second male plug is inserted with the second female plug, so that the electric core to be measured is electrically connected with the charge-discharge equipment to form charge-discharge loop.

[0008] The electric core test auxiliary tool provided by the utility model can realize rapid test, on the one hand, it can greatly reduce the time of detection platform building or removing charge-discharge machine test channel, on the other hand, it can realize automatic hot plug test for fixed process, and further, it can realize the integration of multiple test card slots, and solve the problems of detection platform wire disorder and electric core test sample disorder placement, improve the accuracy of electric core test.

[0009] In addition, the electric core test auxiliary tool of the utility model can further have the following additional technical features:

[0010] Preferably, the first male plug and the second male plug each comprise a conductive substrate, a plurality of first conductive inserts are arranged on one side of the conductive substrate at intervals, and a first insertion slot is formed between two adjacent first conductive inserts;

[0011] The first female plug and the second female plug each comprise a conductive socket, a plurality of second conductive inserts are arranged in the conductive socket at intervals, and a second insertion slot is formed between two adjacent second conductive inserts.

[0012] In the first state, the first conductive insert is inserted into the second insertion slot to realize electrical connection, and the second conductive insert is inserted into the second insertion slot to realize electrical connection.

[0013] Preferably, the thickness of the first conductive insert along the interval arrangement direction of the test card slot decreases in turn from the insertion direction of the first conductive insert into the first insertion slot.

[0014] The thickness of the second conductive insert along the interval arrangement direction of the test card slot decreases in turn from the insertion direction of the second conductive insert into the second insertion slot.

[0015] Preferably, the first conductive insert and the second conductive insert are both trapezoidal in cross section perpendicular to the interval arrangement direction of the test card slot.

[0016] Preferably, the clamp comprises a support seat, the support seat is provided with a limiting slot, a cover plate is detachably connected to the support seat, the cover plate is located in the limiting slot, and the clamp space is formed between the cover plate and the support seat.

[0017] Preferably, through holes are correspondingly arranged on the support seat and the cover plate, bolts are assembled in the through holes, the bolts pass through the through holes on the cover plate and the support seat, and the bolts can adjust the size of the clamping space under the action of their own rotation.

[0018] Preferably, the first male plug and the second male plug are arranged on both sides of the support seat, and a handle is arranged on the support seat.

[0019] Preferably, a clamping groove is arranged at the bottom of the clamp, a two-dimensional code is fixedly arranged in the clamping groove, and test process information of the battery cell is stored in the two-dimensional code; a scanning device is arranged in each test card slot, and in the first state, the scanning device is used to scan the two-dimensional code to obtain the test process information of the corresponding battery cell to be tested.

[0020] Preferably, the bottom of the clamp is provided with a first contact a and a first contact b respectively, and the test card slot is correspondingly provided with a second contact c and a second contact d; in the first state, the first contact a and the second contact c are in contact, and the first contact b and the second contact d are in contact, and form a loop detection circuit with the loop detection component, which is used to determine whether the clamp is inserted into the test card slot.

[0021] Preferably, the two sides of the detection platform are respectively provided with a first channel line slot and a second channel line slot, the first channel line slot is correspondingly provided with the first female plug, and the first channel line slot is used to lay the wire connected with the first female plug; the second channel line slot is correspondingly provided with the second female plug, and the second channel line slot is used to lay the wire connected with the second female plug.

[0022] Preferably, the first channel line slot and the second channel line slot each include a vertical line slot and a horizontal line slot which are connected by bending, and each of the first channel line slots is distributed on the detection platform and is not in communication with each other, and each of the second channel line slots is distributed on the detection platform and is not in communication with each other.

[0023] In a second aspect of the utility model, a battery cell test system is provided, which comprises: a charge-discharge device and the battery cell test auxiliary tool of any embodiment of the application, and the charge-discharge device is electrically connected with the first female plug and the second female plug through the corresponding wire.

[0024] Preferably, the system further comprises a touch detection circuit, and the touch detection circuit is used to determine whether the handle on the clamp is in a touch state.

[0025] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0026] Other characteristics, objects and advantages of the application will become more apparent through reading the following detailed description of non-restrictive embodiments made with reference to the accompanying drawings:

[0027] Figure 1 A perspective view of the battery cell test auxiliary tool provided for the embodiment of the application is shown in the figure;

[0028] Figure 2 A perspective view of the detection platform provided for the embodiment of the application is shown in the figure;

[0029] Figure 3 A top view of the detection platform provided for the embodiment of the application is shown in the figure;

[0030] Figure 4 The mating structure diagram of the first male plug and the first female plug is provided for the embodiment of the present application;

[0031] Figure 5 The structure diagram of the first female plug is provided for the embodiment of the present application; Figure 4 The local enlarged view at A in the middle;

[0032] Figure 6 The structure diagram of the first female plug is provided for the embodiment of the present application;

[0033] Figure 7 The perspective structure diagram of the clamp (assembled with the battery cell) is provided for the embodiment of the present application;

[0034] Figure 8 The side view of the clamp is provided for the embodiment of the present application;

[0035] Figure 9 The structure diagram of the battery cell is provided for the embodiment of the present application;

[0036] Figure 10 The battery cell test system diagram is provided for the embodiment of the present application;

[0037] Figure 11 The loop detection circuit and the touch detection circuit diagram are provided for the embodiment of the present application;

[0038] Figure 12 The test flowchart of the clamp (assembled with the battery cell) inserted into the test card slot is provided for the embodiment of the present application;

[0039] Figure 13 The test flowchart of the clamp (assembled with the battery cell) pulled out from the test card slot is provided for the embodiment of the present application.

[0040] In the above diagrams:

[0041] 100 clamp; 101 first male plug; 1011 conductive base plate; 1012 first conductive plug plate; 1013 adapter plate; 1014 mounting plate; 102 second male plug; 103 support seat; 1031 handle; 1032 card slot; 104 cover plate; 1041 screw hole; 1042 screw; 105 first contact a; 106 first contact b; 107 third contact m;

[0042] 110 detection platform; 111 test card slot; 1111 scanning device; 1112 second contact c; 1113 second contact d; 1114 third contact n;

[0043] 112 first female plug; 1121 conductive socket; 1122 second conductive plug plate; 1123 lug; 113 second female plug; 114 first channel wire slot; 115 second channel wire slot; 116 assembly slot;

[0044] 120 charge-discharge middle machine; 121 charge-discharge upper machine;

[0045] 130 loop detection component;

[0046] 140 first capacitor; 141 second capacitor; 142 switch; 143 power supply; 144 analog-to-digital converter; 145 voltage detector;

[0047] 150 microcontroller; 151 network switch;

[0048] 160 cell; 161 tab. DETAILED DESCRIPTION

[0049] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for ease of description.

[0050] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0051] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0052] Unless otherwise required by the context, the term "comprising" is interpreted to mean "including, but not limited to" throughout the specification and claims.

[0053] In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to mean that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The illustrative representation of the above terms does not necessarily mean the same embodiment or example. In addition, the specific features, structures, materials or characteristics described can be included in any one or more embodiments or examples in any appropriate manner.

[0054] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0055] In a first aspect of the utility model, refer to Figures 1 to 9 , provide a kind of electric core test auxiliary tool, comprising:

[0056] Clamp 100, the clamping space is arranged in the clamp 100, the clamping space is used to place the electric core 160 to be measured, the two sides of the clamp 100 are provided with first male plug 101 and second male plug 102 respectively;

[0057] Detection platform 110, a plurality of interval test card slots 111 are arranged in the detection platform 110, the clamp 100 has the first state of being inserted into the test card slot 111 and the second state of being pulled out from the test card slot 111;The two sides of each test card slot 111 are provided with first female plug 112 and second female plug 113 respectively, and the first female plug 112 and the second female plug 113 are electrically connected with charge and discharge equipment through corresponding lead wire;

[0058] In the first state, the first male plug 101 and the second male plug 102 are used to be electrically connected with the two tab 161 of the electric core 160 to be measured, the first male plug 101 is inserted with the first female plug 112, and the second male plug 102 is inserted with the second female plug 113, so that the electric core 160 to be measured is electrically connected with the charge and discharge equipment to form charge and discharge loop.

[0059] The electric core 160 to be measured can be soft package electric core, aluminum shell electric core and the like, such as lithium ion soft package electric core, and the electric core 160 is single-sided tab electric core, i.e. the two tab 161 of the electric core 160 are located on the same side of the electric core 160, and the polarity of the two tab 161 is different, and exemplarily, refer to Figure 9 , the two tab 161 are positive tab and negative tab respectively.

[0060] Detection platform 110 is arranged along the first direction (such as Figure 1The plurality of test card slots 111 are spaced apart in the middle x direction, and are evenly distributed in the detection platform 110 at equal intervals, or can be distributed in a non-uniform manner. The clamping space provided in the clamp 100 can clamp and fix the battery cell 160. When the battery cell 160 is clamped and fixed in the clamp 100, the clamp 100 is inserted into the corresponding test card slot 111 of the detection platform 110. During the process of inserting the clamp 100 into the test card slot 111, the first male plug 101 on the clamp 100 is inserted into the first female plug 112 of the detection platform 110, and the second male plug 102 on the clamp 100 is inserted into the second female plug 113 of the detection platform 110. Then, the first male plug 101 on the clamp 100 is electrically connected to one tab 161 of the battery cell 160, and the second male plug 102 is electrically connected to the other tab 161 of the battery cell 160. Since the first female plug 112 is always electrically connected to the charge and discharge equipment through a wire in the first state and the second state, and the second female plug 113 is always electrically connected to the charge and discharge equipment through a wire in the first state and the second state, the battery cell 160 can be connected to the charge and discharge equipment and form a charge and discharge loop through the plug-in cooperation of the clamp 100 and the detection platform 110.

[0061] It can be understood that in the embodiments of the present application, the clamp 100 can be one or more, and a person skilled in the art can set it according to actual needs. For example, the number of clamps 100 is equal to the number of test card slots 111, so that each clamp 100 can be inserted into the test card slot 111 one by one, and the battery cell test auxiliary tool provided in the embodiments of the present application can simultaneously assist in assembling a plurality of battery cells 160, further improving the test efficiency of the battery cell 160. In this example, through the cooperation of the test card slot 111, the clamp 100 and the battery cell 160, each battery cell 160 can be orderly placed on the detection platform 110, and the situation of missing measurement or false measurement of the battery cell 160 can be avoided, improving the accuracy of the battery cell 160 test.

[0062] In the example, the first male plug 101 and the second male plug 102 are electrically connected to the two tabs 161 of the battery cell 160 in the following manner: a conductive wire is connected between the first male plug 101, the second male plug 102, and the two tabs 161. Specifically, one end of the conductive wire is connected to the first male plug 101 through screwing, and the other end of the conductive wire is connected to one of the two tabs 161 of the battery cell 160 through screwing. The other end of the conductive wire is connected to the second male plug 102 through screwing, and the other end of the conductive wire is connected to the other of the two tabs 161 of the battery cell 160 through screwing. For example, screw holes 1041 are formed in the two tabs 161 of the battery cell 160, and screw holes 1041 are formed in the first male plug 101 and the second male plug 102. The two ends of the conductive wire are provided with screw heads, and the screw heads are screwed into the screw holes 1041. Correspondingly, the first female plug 112 and the second female plug 113 can also be fixedly connected by screwing, welding, or the like.

[0063] In the example, the first female plug 112 and the second female plug 113 are constrained in the detection platform 110, so that the detection platform 110 has a neat, beautiful, and orderly appearance. The first female plug 112 and the second female plug 113 corresponding to each test card slot 111 of the detection platform 110 are always electrically connected to the charging and discharging device, which saves the time for building the detection platform 110 and improves the detection efficiency of the battery cell 160. The battery cell 160 is connected to the first female plug 112 through the first male plug 101, and is connected to the second female plug 113 through the second male plug 102, so that the battery cell 160, the detection platform 110, and the charging and discharging device form a charging and discharging circuit in series, achieving plug and play. Through the cooperation of the clamp 100 and the detection card slots 1032 in the detection platform 110, the test samples of the battery cell 160 are placed in an orderly manner, avoiding false detection and missed detection of the battery cell 160, and improving the accuracy of the detection of the battery cell 160.

[0064] The battery cell test auxiliary tool provided by the utility model can realize rapid testing, can greatly reduce the time for building or disassembling the detection platform to occupy the test channel of the charging and discharging machine, can realize automatic hot plug testing for a fixed process, can realize integration of multiple test card slots, and solves the problems of disordered wires of the detection platform and disordered placement of battery cell test samples, thereby improving the accuracy of battery cell testing.

[0065] In some embodiments, with reference to Figures 4 to 6 The first male plug 101 and the second male plug 102 each include a conductive base plate 1011, a plurality of first conductive inserts 1012 are arranged on one side of the conductive base plate 1011, and a first slot is formed between two adjacent first conductive inserts 1012.

[0066] The first female plug 112 and the second female plug 113 each include a conductive socket 1121, a plurality of second conductive insertion plates 1122 are arranged in the conductive socket 1121 at intervals, and a second insertion slot is formed between two adjacent second conductive insertion plates 1122.

[0067] In the first state, the first conductive insertion plate 1012 is in plug-in cooperation with the second insertion slot to realize electrical connection, and the second conductive insertion plate 1122 is in plug-in cooperation with the second insertion slot to realize electrical connection.

[0068] In this example, through the plug-in cooperation of the plurality of first conductive insertion plates 1012 and the corresponding plurality of first insertion slots, and the plug-in cooperation of the plurality of second conductive insertion plates 1122 and the corresponding plurality of second insertion slots, the electrical connection between the first male plug 101 and the first female plug 112 is more firm, and the electrical connection between the second male plug 102 and the second female plug 113 is more firm, avoiding the situation of poor contact.

[0069] In some embodiments, with reference to Figure 4 The conductive base plate 1011 is further fixedly provided with an adapter plate 1013, the adapter plate 1013 is fixedly connected with the clamp 100, a mounting plate 1014 is fixedly arranged on one side of the adapter plate 1013 close to the inside of the clamp 100, and screw holes 1041 are arranged on the mounting plate 1014, which are used to assemble screw heads of conductive wires connected with the tab 161 of the battery cell 160.

[0070] The detection platform 110 is provided with assembly grooves 116 on both sides of the test card slot 111, the first female plug 112 and the second female plug 113 can be assembled into the assembly grooves 116, so that the first female plug 112 and the second female plug 113 are hidden in the detection platform 110, improving the safety of the detection platform 110. The two sides of the conductive socket 1121 are further provided with lugs 1123, and the detection platform 110 is provided with mounting grooves matched with the lugs 1123, so that the conductive socket 1121 can be fixed in the detection platform 110 through the lugs 1123.

[0071] In some embodiments, with reference to Figures 4 to 6 The thickness of the first conductive insertion plate 1012 along the interval arrangement direction of the test card slot 111 decreases in turn from the insertion direction of the first conductive insertion plate 1012 into the first insertion slot;

[0072] The thickness of the second conductive insertion plate 1122 along the interval arrangement direction of the test card slot 111 decreases in turn from the insertion direction of the second conductive insertion plate 1122 into the second insertion slot.

[0073] Specifically, the spacing direction of the test card slot 111 is the first direction, and the spacing direction perpendicular to the test card slot 111 is the second direction (e.g., Figure 1 (in the y-direction), the insertion direction of the first conductive insert 1012 into the first slot is the third direction (e.g., in the y-direction). Figure 1 The first, second, and third directions are arranged perpendicularly to each other (in the z-direction). The thickness of the first conductive plug 1012 decreases sequentially along the first direction from the insertion direction of the first conductive plug 1012 into the first slot, and the thickness of the second conductive plug 1122 decreases sequentially along the first direction from the insertion direction of the second conductive plug 1122 into the second slot. This serves as a guide to facilitate the insertion and mating of the first male plug 101 and the first female plug 112, as well as the insertion and mating of the second male plug 102 and the second female plug 113.

[0074] In some embodiments, reference Figures 4 to 6 The cross-sections of the first conductive insert 1012 and the second conductive insert 1122 along the spacing direction perpendicular to the test slot 111 are both trapezoidal.

[0075] Specifically, the first male plug 101 and the first female plug 112 employ multiple sets of trapezoidal first conductive plates 1012 and second conductive plates 1122, increasing the contact area between the first male plug 101 and the first female plug 112, improving current carrying capacity, and converting a vertical force in a third direction into a horizontal component force in a first direction. The vertical force is provided by the weight of the clamp 100 and the battery cell 160 itself, making the horizontal component force much greater than the vertical force, thereby making the connection between the first male plug 101 and the first female plug 112 more reliable. The second male plug 102 has the same structure as the first male plug 101, and the first female plug 112 and the second female plug 113 have the same structure. The connection principle and effect of the second male plug 102 and the second female plug 113 are the same as those of the first male plug 101 and the first female plug 112, and will not be described again in this application.

[0076] In some embodiments, reference Figure 7 and Figure 8 The clamp 100 includes a support base 103, the support base 103 has a limiting groove, and a cover plate 104 is detachably connected to the support base 103. The cover plate 104 is located in the limiting groove and forms the clamping space with the support base 103.

[0077] Specifically, a U-shaped limiting groove is formed in the support base 103, and the cover plate 104 is located in the U-shaped limiting groove and cooperates with the support base 103 to form a clamping space. The clamping space can firmly clamp the battery cell 160, so as to ensure that the battery cell 160 is fixed firmly. It can be understood that the clamp 100 itself is not electrified, which ensures the insulation of the charging and discharging circuit and the loop detection circuit, and improves the safety of the battery cell 160 test.

[0078] In some embodiments, with reference to Figure 7 and Figure 8 , the support base 103 and the cover plate 104 are provided with through screw holes 1041 corresponding to each other, and bolts 1042 are fitted in the screw holes 1041. The bolts 1042 pass through the screw holes 1041 in the cover plate 104 and the support base 103, and the bolts 1042 can adjust the size of the clamping space under the action of their own rotation.

[0079] Specifically, the cover plate 104 and the support base 103 are provided with through screw holes 1041 at corresponding positions, and the bolts 1042 pass through the screw holes 1041 in the cover plate 104 and the support base 103 in sequence, so that the cover plate 104 is screw-connected with the support base 103. By using bolts 1042 of different lengths or adjusting the depth of the bolts 1042 screwed into the screw holes 1041, the different test warning force requirements of the battery cell 160 can be met, and the fixing requirements of different models of the battery cell 160 can be met. Different models of the battery cell 160 refer to at least one of the length, width or height of the battery cell 160 being different.

[0080] It can be understood that the length of the clamping space in the second direction is greater than the length of the battery cell 160, and the width of the clamping space in the first direction can be adjusted by the bolts 1042.

[0081] In some embodiments, with reference to Figure 7 and Figure 8 , the first male plug 101 and the second male plug 102 are arranged on both sides of the support base 103, and the support base 103 is provided with a handle 1031.

[0082] Specifically, the handle 1031 is arranged to facilitate the test operator to hold the clamp 100 by hand, thereby improving the convenience of testing the battery cell 160. In addition, the handle 1031 can be used as a capacitance detection component, which can be used to assist in determining whether the test operator touches the clamp 100.

[0083] In some embodiments, with reference to Figure 3 and Figure 8The bottom of the clamp 100 is provided with a clamping groove 1032, a two-dimensional code is fixedly arranged in the clamping groove 1032, and test flow information of the battery cell 160 is stored in the two-dimensional code; each test clamping groove 111 is provided with a scanning device 1111, and the scanning device 1111 is used for scanning the two-dimensional code to obtain the test flow information of the corresponding battery cell 160 in the first state.

[0084] Specifically, the test clamping grooves 111 are arranged in one-to-one correspondence with the clamps 100, and the test clamping grooves 111 and the corresponding clamps 100 are respectively provided with identification information, and the identification information of at least part of the test clamping grooves 111 is different from each other, and the identification information of at least part of the clamps 100 is different from each other, the identification information of each test clamping groove 111 and the identification information of the corresponding clamps 100 can be the same or different, and the identification information is used to enable each clamp 100 to be inserted into the corresponding designated test clamping groove 111. For example, the test clamping grooves 111 and the clamps 100 are N, N≥2, preferably, N is 6-12, for example, the identification information of the N test clamping grooves 111 is 1, 2, 3, …, N, and the identification information of the corresponding N clamps 100 is 1, 2, 3, …, N, then the clamp 1001 can only be inserted into the test clamping groove 1111, the clamp 1002 can only be inserted into the test clamping groove 1112, and so on, and the clamp 100N can only be inserted into the test clamping groove 111N; for another example, the identification information of the N test clamping grooves 111 is 1a, 1b, 1c, …, 1n, and the identification information of the corresponding N clamps 100 is 2a, 2b, 2c, …, 2n, then the clamp 1001a can only be inserted into the test clamping groove 1112a, the clamp 1001b can only be inserted into the test clamping groove 1112b, and so on, and the clamp 1001n can only be inserted into the test clamping groove 1112n. The above identification information is only an example for illustration, and other identification information can also be used.

[0085] The bottom of each clamp 100 is fixedly provided with a two-dimensional code through the clamping groove 1032, the two-dimensional codes on the clamps 100 with different identification information store different information, wherein the two-dimensional codes store the model of the battery cell 160 and the test flow corresponding to the battery cell 160, different two-dimensional codes correspond to the test flow of different types of battery cells 160, meet the test requirements of different types of battery cells 160, or different two-dimensional codes correspond to different test flows of the same type of battery cell 160. The detection platform 110 provided in the embodiment of the application can test the charging performance, discharging performance, standing performance, short circuit performance, and rate performance of the battery cell 160.

[0086] The detection platform 110 is provided with a recess in the test card slot 111, and the recess is located at a position corresponding to the card slot 1032. The code scanning device is assembled in the recess, so that the scanning device 1111 is hidden in the detection platform 110 and does not interfere with the plug-in cooperation of the clamp 100 and the test card slot 111. The scanning device 1111 in the test card slot 111 scans the two-dimensional code at the bottom of the clamp 100 inserted into the test card slot 111, so as to obtain the test process information corresponding to the battery cell 160, and then test the battery cell 160 in the clamp 100 according to the obtained test process information. In this example, through the cooperation of the two-dimensional code and the scanning device 1111, different types of battery cells 160 can be tested according to the test process corresponding to the type of battery cell 160, so that the type of battery cell 160 and the corresponding test process are one-to-one corresponding, avoiding the test error of the battery cell 160 and improving the accuracy of the battery cell 160 test; the same type of battery cell 160 can also be tested according to different test processes, so that the battery cell 160 can be tested according to the required test process of the user, and the accuracy of the battery cell 160 test is improved.

[0087] In some embodiments, with reference to Figure 3 、 Figure 8 and Figure 11 , the bottom of the clamp 100 is provided with a first contact a 105 and a first contact b 106 on both sides, respectively, and the test card slot 111 is correspondingly provided with a second contact c 1112 and a second contact d 1113; in the first state, the first contact a 105 and the second contact c 1112 are in contact, and the first contact b 106 and the second contact d 1113 are in contact, and form a loop detection circuit with the loop detection component 130, which is used to determine whether the clamp 100 is inserted into the test card slot 111.

[0088] Specifically, the first contact a 105 and the first contact b 106 are electrically connected, the second contact c 1112 and the second contact d 1113 are electrically connected with the loop detection component 130, in the first state, the first contact a 105 and the second contact c 1112 are in contact, and the first contact b 106 and the second contact d 1113 are in contact, and form a loop detection circuit with the loop detection component 130, by which it can be determined whether the clamp 100 is inserted into the test card slot 111. For example, the loop detection component 130 can be a PLC (Programmable Logic Controller) communication device that can send a periodic pulse signal, if the pulse signal can be received, the loop detection circuit is turned on, and it is determined that the clamp 100 is in the inserted state; otherwise, the pulse signal cannot be received, and the clamp 100 is in the pulled-out state. For another example, the loop detection component 130 is a voltage detector 145, if the voltage detector 145 detects voltage, the loop detection circuit is turned on, and it is determined that the clamp 100 is in the inserted state; otherwise, the voltage cannot be detected, and the clamp 100 is in the pulled-out state.

[0089] In some embodiments, with reference to Figure 1 and Figure 2 , two sides of the detection platform 110 are respectively provided with a first channel wire slot 114 and a second channel wire slot 115, the first channel wire slot 114 is provided in one-to-one correspondence with the first female plug 112, and the first channel wire slot 114 is used to arrange the wires connected with the first female plug 112; the second channel wire slot 115 is provided in one-to-one correspondence with the second female plug 113, and the second channel wire slot 115 is used to arrange the wires connected with the second female plug 113.

[0090] Specifically, the wires connected with the first female plug 112 and the second female plug 113 and the charging and discharging equipment are respectively constrained in the detection platform 110 through the first channel wire slot 114 and the second channel wire slot 115, avoiding disorderly placement of the wires, so that the appearance of the detection platform 110 is neat, beautiful and orderly.

[0091] In some embodiments, with reference to Figure 1 and Figure 2 , the first channel wire slot 114 and the second channel wire slot 115 each include a vertically bent and communicated vertical wire slot and a horizontal wire slot, each of the first channel wire slots 114 is spaced apart and not communicated with each other on the detection platform 110, and each of the second channel wire slots 115 is spaced apart and not communicated with each other on the detection platform 110.

[0092] In the example, the bent and communicated vertical linear grooves and horizontal linear grooves form L-shaped channel linear grooves, and the L-shaped channel linear grooves are distributed at intervals on the detection platform 110, the vertical linear grooves corresponding to each test card slot 111 are distributed at intervals along the first direction, and the horizontal linear grooves corresponding to part of the test card slots 111 are distributed at intervals along the third direction, so that the L-shaped channel linear grooves located on the same side of the detection platform 110 are not communicated with each other, the arrangement of the wires is facilitated, the appearance of the detection platform 110 is neat, beautiful and orderly, and the space utilization rate of the detection platform 110 can be improved.

[0093] In the second aspect of the utility model, Figure 10 The utility model discloses a kind of battery test systems, including: charge-discharge equipment and the battery test auxiliary tool described in any embodiment of the application, the charge-discharge equipment is electrically connected with the first female plug 112 and the second female plug 113 by corresponding wire.

[0094] Specifically, the charge-discharge equipment includes a charge-discharge upper computer 121 and a charge-discharge middle computer 120, the charge-discharge middle computer 120 is electrically connected with the first female plug 112 and the second female plug 113 of each test card slot 111 through wires, and the charge-discharge middle computer 120 can perform charging and discharging operations on the battery 160 assembled in each test card slot 111, and can obtain working parameter information of the corresponding battery 160, including voltage, current, temperature and other information. The charge-discharge middle computer 120 can interact with the charge-discharge upper computer 121 through a network switch 151, the network switch 151 can send battery 160 test process information and start-stop information of battery 160 test in each test channel to the charge-discharge upper computer 121, and the charge-discharge upper computer 121 controls the charge-discharge middle computer 120 to perform corresponding operations according to the information sent by the network switch 151, such as controlling the scanning device 1111 to scan two-dimensional code information and controlling the start-stop of battery 160 test.

[0095] It should be noted that the battery test system of the application can also include a microcontroller 150, which is electrically connected with the charge-discharge middle computer 120, and the microcontroller 150 can obtain two-dimensional code information scanned by the scanning device 1111, touch state information of the handle 1031 and insertion state information of the clamp 100 in the test card slot 111, etc.

[0096] In some embodiments, with reference to Figure 11The system further comprises a touch detection circuit for determining whether the handle 1031 on the clamp 100 is in a touched state. The bottom of the clamp 100 is further provided with a third contact m 107, and the test card slot 111 is provided with a third contact n 1114. In the first state, the third contact m 107 and the third contact n 1114 are in contact, and the third contact n 1114 is sequentially connected with a switch 142 and a first capacitor 140 in series. The switch 142 and the first capacitor 140 are connected with an analog-to-digital converter 144 (ADC) and a voltage detector 145. One end of the first capacitor 140 is grounded (GND), and one end of the switch 142 is connected with a power supply 143 for providing a power supply 143 voltage (Vcc). When the test operator holds the handle 1031, the test operator is directly grounded as a second capacitor 141 (human body capacitor), and forms a touch detection circuit with the switch 142, the first capacitor 140, the ADC and the voltage detector 145. The switch 142 can be a MOS tube switch, such as a high-frequency switch. The first end of the switch 142 is connected with the power supply 143, the second end of the switch 142 is connected with the third contact n 1114, and the third end of the switch 142 is connected with the first capacitor 140. If the first end and the third end of the switch 142 are in communication, the power supply 143 charges the first capacitor 140. If the second end and the third end of the switch 142 are in communication, if the voltage of the first capacitor 140 decreases slightly, through ADC conversion, the voltage value obtained by the voltage detector 145 is close to Vcc and is greater than or equal to 80% Vcc, it is determined that the handle 1031 is in an untouched state. If the voltage of the first capacitor 140 decreases greatly, through ADC conversion, the voltage value obtained by the voltage detector 145 is small (less than or equal to 20% Vcc), it is determined that the handle 1031 is in a touched state.

[0097] It should be noted that the touch detection circuit formed by the third contact m 107 and the third contact n 1114, and the loop detection circuit formed by the first contact a 105, the first contact b 106, the second contact c 1112 and the second contact d 1113 are insulated and do not interfere with each other.

[0098] The use method of the battery cell test system provided by the utility model is as follows:

[0099] Reference Figure 12 The clamp 100 assembled with the battery cell 160 is inserted into the test card slot 111:

[0100] The test operator inserts the battery cell 160 into the clamping space of the corresponding clamp 100, and then inserts the clamp 100 assembled with the battery cell 160 into the idle test card slot 111 in the detection platform 110;

[0101] The first contact a 105 and the first contact b 106 at the bottom of the clamp 100 are in contact with the second contact c 1112 and the second contact d 1113 in the test card slot 111 respectively to form a loop detection circuit, the third contact m 107 at the bottom of the clamp 100 is in contact with the third contact n 1114 in the test card slot 111 to form a touch detection circuit, and the first male plug 101 and the second male plug 102 on the clamp 100 are inserted into the first female plug 112 and the second female plug 113 on the detection platform 110 respectively to form a charging and discharging loop.

[0102] The touch detection circuit is continuously detected for a first preset time (such as 1-3s), and it is determined that the test operator does not touch the handle 1031 of the clamp 100; the voltage of the battery cell 160 is detected by the charging and discharging midpoint machine 120 in the charging and discharging loop, and if the voltage of the battery cell 160 increases and reaches a voltage threshold, it is determined that the charging and discharging loop is turned on, for example, if the voltage of the battery cell 160 is detected to increase from below 0.5v to above 1.5v, it is determined that the charging and discharging loop is turned on. Then, the two-dimensional code at the bottom of the clamp 100 is scanned by the scanning device 1111 in the test card slot 111, and the test process information corresponding to the battery cell 160 can be obtained, the test process information of the battery cell 160 obtained is matched with the test process information of the battery cell 160 issued by the network switch 151, if the matching is successful, the battery cell 160 is tested according to the obtained test process information, otherwise, an alarm information is issued, such as a pop-up warning, a sound alarm, etc.

[0103] The charging and discharging upper computer 121 continuously detects the state of the clamp 100 equipped with the battery cell 160 for a second preset time (such as 4-8s), and if the battery cell 160 is found to be inserted in the wrong position of the clamp 100 within the second preset time, the battery cell 160 can be pulled out, and the test of the battery cell 160 is interrupted, and then the battery cell 160 is put into the required clamp 100 again, and the performance test of the battery cell 160 is performed again.

[0104] The charging and discharging upper computer 121 judges whether the test process of the battery cell 160 is completed, if the test process is completed, the next battery cell 160 is tested in the test process; otherwise, the test of the battery cell 160 is continued until the test process of the battery cell 160 is completed, and the test of the battery cell 160 is ended.

[0105] Reference Figure 13 The clamp 100 equipped with the battery cell 160 is pulled out from the test card slot 111:

[0106] If the handle 1031 is continuously touched and the touch time reaches the third preset time (1s or more), or the loop detection circuit detects that the self-loop is disconnected, it indicates that the first contact a 105 and the second contact c 1112 are disconnected, and the first contact b 106 and the second contact d 1113 are disconnected, and it is determined that the clamp 100 is in poor contact with the test card slot 111. It is detected whether the test process of the battery cell 160 is completed, if the battery cell 160 is tested, the test is ended, the clamp 100 is pulled out from the slot, if the battery cell 160 is not tested, the test is interrupted, and the operator does not touch the handle 1031 and inserts the clamp 100 and the test card slot 111 into the position, and then continues to test the battery cell 160.

[0107] The battery cell test system provided by the embodiments of the present application can realize the hot plug function of the clamp 100 (assembled with the battery cell 160) and the test card slot 111, that is, plug and play, and the automatic start-stop function is achieved.

[0108] The above description is only the preferred embodiments of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the utility model range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the combination of the above technical features or equivalent features without departing from the utility model concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form a technical solution.

Claims

1. An electrode testing aid characterized by, The utility model relates to a kind of test fixture and test platform, including: Clamp (100), the clamp (100) is provided with clamping space inside, the clamping space is used to place the battery to be measured (160), the two sides of the clamp (100) are provided with first male plug (101) and second male plug (102) respectively; Detection platform (110), the detection platform (110) is provided with multiple interval test card slots (111) inside, the clamp (100) has the first state of insertion test card slot (111) and the second state of pulling out test card slot (111);The two sides of each test card slot (111) are provided with first female plug (112) and second female plug (113) respectively, and first female plug (112) and second female plug (113) are electrically connected with charging and discharging equipment by corresponding wire; In the first state, first male plug (101) and second male plug (102) are used to be electrically connected with the two tabs (161) of the battery to be measured (160), and first male plug (101) is inserted into first female plug (112), and second male plug (102) is inserted into second female plug (113), so that the battery to be measured (160) is electrically connected with charging and discharging equipment to form charging and discharging loop.

2. The battery cell test assist tool of claim 1, wherein, First male plug (101) and second male plug (102) both include conductive substrate (1011), and one side of conductive substrate (1011) is provided with multiple first conductive plugboards (1012) at intervals, and first insertion slot is formed between adjacent two first conductive plugboards (1012); First female plug (112) and second female plug (113) both include conductive socket (1121), and multiple second conductive plugboards (1122) are provided at intervals in conductive socket (1121), and second insertion slot is formed between adjacent two second conductive plugboards (1122); In the first state, first conductive plugboard (1012) is inserted into second insertion slot to realize electrical connection, and second conductive plugboard (1122) is inserted into second insertion slot to realize electrical connection.

3. The battery cell test assist tool of claim 2, wherein, The thickness of first conductive plugboard (1012) along the interval arrangement direction of test card slot (111) decreases in turn from the insertion direction of first conductive plugboard (1012) inserted into first insertion slot; The thickness of second conductive plugboard (1122) along the interval arrangement direction of test card slot (111) decreases in turn from the insertion direction of second conductive plugboard (1122) inserted into second insertion slot.

4. The battery cell test assist tool of claim 2, wherein, The cross section of first conductive plugboard (1012) and second conductive plugboard (1122) along the interval arrangement direction of test card slot (111) is trapezoidal.

5. The battery cell test assist tool of claim 1, wherein, The clamp (100) includes support seat (103), the support seat (103) is provided with limiting groove, and the cover plate (104) is detachably connected on the support seat (103), the cover plate (104) is located in the limiting groove, and the clamping space is formed between the cover plate (104) and the support seat (103).

6. The battery cell test assist tool of claim 5, wherein, Corresponding threaded holes (1041) are arranged on the support base (103) and the cover plate (104), bolts (1042) are arranged in the threaded holes (1041), the bolts (1042) pass through the threaded holes (1041) on the cover plate (104) and the support base (103), and the bolts (1042) can adjust the size of the clamping space under the action of self rotation.

7. The battery cell test assist tool of claim 5, wherein, The first male plug (101) and the second male plug (102) are arranged on the two sides of the support base (103), and a handle (1031) is arranged on the support base (103).

8. The battery cell testing auxiliary tool of claim 1, wherein, A card slot (1032) is arranged at the bottom of the clamp (100), a two-dimensional code is fixedly arranged in the card slot (1032), and test process information of the battery cell (160) is stored in the two-dimensional code; a scanning device (1111) is arranged in each test card slot (111), and in the first state, the scanning device (1111) is used for scanning the two-dimensional code to obtain the test process information of the corresponding battery cell (160) to be tested.

9. The battery cell testing auxiliary tool of claim 1, wherein, First contact a (105) and first contact b (106) are arranged on the two sides of the bottom of the clamp (100), and second contact c (1112) and second contact d (1113) are correspondingly arranged in the test card slot (111); in the first state, the first contact a (105) and the second contact c (1112) are in contact, the first contact b (106) and the second contact d (1113) are in contact, and a loop detection circuit is formed with a loop detection component (130), and the loop detection circuit is used for determining whether the clamp (100) is inserted into the test card slot (111).

10. The battery cell testing auxiliary tool of claim 1, wherein, First channel wire grooves (114) and second channel wire grooves (115) are arranged on the two sides of the detection platform (110), the first channel wire grooves (114) are arranged in one-to-one correspondence with the first female plugs (112), and the first channel wire grooves (114) are used for arranging wires connected with the first female plugs (112); the second channel wire grooves (115) are arranged in one-to-one correspondence with the second female plugs (113), and the second channel wire grooves (115) are used for arranging wires connected with the second female plugs (113).

11. The battery cell testing auxiliary tool of claim 10, wherein, The first channel wire grooves (114) and the second channel wire grooves (115) each include a vertical wire groove and a horizontal wire groove which are connected by bending, the first channel wire grooves (114) are distributed on the detection platform (110) and are not connected with each other, and the second channel wire grooves (115) are distributed on the detection platform (110) and are not connected with each other.

12. A cell testing system, comprising: The application relates to a clamp (100) and a detection platform (110) which are used for testing a battery cell (160), and the clamp (100) comprises a support base (103), a cover plate (104), a first male plug (101), a second male plug (102), a first female plug (112), a second female plug (113), a test card slot (111) and a detection platform (110). The clamp (100) is used for clamping the battery cell (160) to be tested, the cover plate (104) is arranged on the support base (103), the first male plug (101) and the second male plug (102) are arranged on the two sides of the support base (103), the first female plug (112) and the second female plug (113) are arranged on the detection platform (110), the test card slot (111) is arranged on the detection platform (110), the test card slot (111) is used for clamping the clamp (100), and the detection platform (110) is used for clamping the battery cell (160) to be tested. The clamp (100) is used for clamping the battery cell (160) to be tested, the cover plate (104) is arranged on the support base (103), the first male plug (101) and the second male plug (102) are arranged on the two sides of the support base (103), the first female plug (112) and the second female plug (113) are arranged on the detection platform (110), the test card slot (111) is arranged on the detection platform (110), the test card slot (111) is used for clamping the clamp (100), and the detection platform (110) is used for clamping the battery cell (160) to be tested. The clamp (100) is used for clamping the battery cell (160) to be tested, the cover plate (104) is arranged on the support base (103), the first male plug (101) and the second male plug (102) are arranged on the two sides of the support base (103), the first female plug (112) and the second female plug (113) are arranged on the detection platform (110), the test card slot (111) is arranged on the detection platform (110), the test card slot (111) is used for clamping the clamp (100), and the detection platform (110) is used for clamping the battery cell (160) to be tested. The clamp (100) is used for clamping the battery cell (160) to be tested, the cover plate (104) is arranged on the support base (103), the first male plug (101) and the second male plug (102) are arranged on the two sides of the support base (103), the first female plug (112) and the second female plug (113) are arranged on the detection platform (110), the test card slot (111) is arranged on the detection platform (110), the test card slot (111) is used for clamping the clamp (100), and the detection platform (110) is used for clamping the battery cell (160) to be tested. The clamp (100) is used for clamping the battery cell (160) to be tested, the cover plate (104) is arranged on the support base (103), the first male plug (101) and the second male plug (102) are arranged on the two sides of the support base (103), the first female plug (112) and the second female plug (113) are arranged on the detection platform (110), the test card slot (111) is arranged on the detection platform (110), the test card slot (111) is used for clamping the clamp (100), and the detection platform (110) is used for clamping the battery cell (160) to be tested.

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