Battery tab temperature testing device

Abstract

The utility model provides a battery tab temperature testing device. The battery tab temperature testing device comprises a first body, a second body and a temperature measuring device, the first body and the second body are oppositely arranged and movably connected with each other, and the first body and the second body are used for being arranged at two ends of a to-be-tested battery to clamp the to-be-tested battery; the first body is provided with two connecting pieces extending towards the direction of the second body, the ends, facing the second body, of the two connecting pieces are used for abutting against a positive tab and a negative tab in a to-be-detected battery respectively, and the two connecting pieces are both used for being connected with a detection line of a detection device; a detection channel is arranged in the connecting piece and communicated with the two sides, facing and backing on to the second body, of the first body, and a detection head of the temperature measuring device is arranged in the detection channel and located at the end, close to the second body, of the detection channel, so that the detection head is close to a tab of a battery to be detected, and errors caused by heat loss of the tab are reduced; and the precision of temperature monitoring during battery testing is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery detection, and in particular to a battery tab temperature testing device. Background Art

[0002] The charge and discharge test of energy storage batteries is a necessary means to verify the performance of energy storage batteries. When charging and discharging the battery, in addition to electrical physical parameters such as voltage and current, the temperature change characteristics are also the most noteworthy physical characteristics, because the heat generation characteristics of the battery are crucial to the heat dissipation design and thermal runaway protection of the energy storage battery. Since rectangular batteries are mostly used in vehicles, the temperature changes of rectangular batteries during the charging and discharging process are very noteworthy. The structure of a rectangular battery usually includes a shell, a positive ear, a negative ear and two bolts. The positive ear and the negative ear are arranged inside the shell. On one side of the shell, there are through holes respectively opposite to the positive ear and the negative ear. The two bolts are connected in the two through holes. The two bolts are connected to the positive ear and the negative ear respectively, so that the two bolts are exposed on one side of the shell. The external equipment is connected to the two bolts to complete the connection operation with the positive and negative electrodes of the battery.

[0003] In the charge and discharge test of rectangular batteries, the lugs are the part of the battery that is most likely to generate heat during the charge and discharge process, and its temperature monitoring is crucial. Existing temperature measuring devices are connected to the battery casing or to bolts exposed on the battery surface to detect the temperature of the battery during charge and discharge. That is, the battery temperature monitored by the existing temperature measuring devices is the temperature of the battery surface. There is a certain error between the monitored temperature data and the temperature changes inside the battery, which affects the accuracy of temperature monitoring during battery testing. Utility Model Content

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a battery tab temperature testing device.

[0005] The present disclosure provides a battery tab temperature testing device, comprising a first body, a second body and a temperature measuring device;

[0006] The first body and the second body are arranged opposite to each other and are movably connected to each other, and the first body and the second body are used to be arranged at two ends of the battery to be tested to clamp the battery to be tested;

[0007] The first body is provided with two connectors extending in the direction of the second body, and the ends of the two connectors facing the second body are respectively used to abut against the positive ear and the negative ear inside the battery to be tested, and the two connectors are both used to connect with the detection line of the detection device;

[0008] A detection channel is provided inside the connecting piece, and the detection channel connects the two sides of the first body facing toward and facing away from the second body. The detection head of the temperature measuring device is arranged in the detection channel and is located at one end of the detection channel close to the second body.

[0009] Optionally, the connecting member includes a connecting tube and a conductive member, the connecting tube is passed through the first body along the direction of the first body toward the second body, the detection channel is arranged inside the connecting tube, the conductive member is arranged on the first body and connected to the connecting tube, and the detection line of the detection device is connected to the conductive member.

[0010] Optionally, the two conductive members are both arranged on a side of the first body facing the second body;

[0011] The first body is provided with two connection vias, the two connection vias are respectively arranged opposite to the two conductive members, and the detection line of the detection device is connected to the conductive members through the connection vias.

[0012] Optionally, the conductive member includes a first mounting plate, a second mounting plate and a connecting plate;

[0013] The first mounting plate and the second mounting plate are respectively connected to two ends of the connecting plate, the first mounting plate is connected to the connecting pipe, and the second mounting plate is arranged opposite to the connecting through hole.

[0014] Optionally, a first mounting hole is provided on the first mounting plate, the connecting pipe is passed through the first mounting hole, and the connecting pipe abuts against the inner wall of the first mounting hole, and a second mounting hole is provided on the second mounting plate, and the first mounting hole is coaxially arranged with the connecting through hole.

[0015] Optionally, a protection tube is provided in the detection channel, and the interior of the protection tube is communicated with the detection channel, so that the end of the detection head in the detection channel is located inside the protection tube;

[0016] Optionally, a wire management bracket is provided on a side of the first body facing away from the second body, and part of the connecting wires between the detection head and the temperature measuring device are connected to the wire management bracket.

[0017] Optionally, one side of the first body toward the second body is recessed to form a first limiting groove, and one side of the second body toward the first body is recessed to form a second limiting groove, and two ends of the battery to be tested are respectively inserted into the first limiting groove and the second limiting groove.

[0018] Optionally, the first body and the second body are connected to each other via an elastic member.

[0019] Optionally, a first fixing piece is disposed on an edge of the first body, a second fixing piece is disposed on an edge of the second body, and one end of the elastic piece is detachably connected to the first fixing piece, and the other end is detachably connected to the second fixing piece.

[0020] Optionally, the first fixing member, the second fixing member and the elastic member are all multiple in number;

[0021] A plurality of first fixing members are arranged at intervals on the edge of the first body around the center of the first body, and a plurality of second fixing members are arranged at intervals on the edge of the second body around the center of the second body;

[0022] Along the direction from the first body to the second body, the plurality of first fixing members and the plurality of second fixing members are arranged relatively to each other in a one-to-one correspondence, the relative first fixing members and the second fixing members form a fixing member group, and the plurality of elastic members are connected to the plurality of fixing member groups in a one-to-one correspondence.

[0023] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0024] The battery tab temperature testing device provided by the present disclosure comprises a first body, a second body and a temperature measuring device; the first body and the second body are arranged relative to each other and are movably connected to each other, the first body and the second body are used to be arranged at two ends of a battery to be tested to clamp the battery to be tested, so that the first body and the second body can be stably installed on the battery to be tested; the first body is provided with two connectors extending in the direction of the second body, the ends of the two connectors facing the second body are respectively used to abut against the positive tab and the negative tab inside the battery to be tested, and the two connectors are both used to connect with the detection line of the detection device, so that the detection device can be electrically connected to the battery to be tested through the two connection lines, so that the detection device can perform a detection operation on the battery to be tested; a detection channel is arranged inside the connector, the detection channel connects the two sides of the first body facing toward and away from the second body, the detection head of the temperature measuring device is arranged in the detection channel, and is located at one end of the detection channel close to the second body, so that the detection head is close to the tab of the battery to be tested, so as to reduce the error caused by the heat loss of the tab, so that the temperature data collected by the detection head can accurately reflect the temperature change of the tab of the battery to be tested, and improve the accuracy of temperature monitoring during battery testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 It is a perspective view of the exploded structure of the battery tab temperature testing device and the battery to be tested according to the embodiment of the present disclosure;

[0028] Figure 2 A perspective view of the structure of the battery tab temperature testing device and the battery to be tested after being assembled according to an embodiment of the present disclosure;

[0029] Figure 3 This is a schematic diagram of the structure of the first body of the embodiment of the present disclosure;

[0030] Figure 4 This is a perspective structural diagram of the first body of the embodiment of the present disclosure;

[0031] Figure 5 This is a perspective structural diagram of the second body according to an embodiment of the present disclosure;

[0032] Figure 6 A side perspective view of the connecting pipe according to an embodiment of the present disclosure;

[0033] Figure 7 It is a schematic diagram of the structure of the conductive member described in the embodiment of the present disclosure.

[0034] Among them, 1. first body; 11. first limiting groove; 12. first fixing member; 13. wire management bracket; 14. connecting hole; 2. second body; 21. second limiting groove; 22. second fixing member; 3. connecting member; 31. connecting tube; 32. conductive member; 321. first mounting plate; 322. second mounting plate; 323. connecting plate; 324. first mounting hole; 325. second mounting hole; 33. detection channel; 34. protection tube; 4. battery to be tested; 5. detection head. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0037] Reference Figures 1 to 7 As shown, an embodiment of the present disclosure provides a battery tab temperature testing device, comprising a first body 1, a second body 2 and a temperature measuring device; the first body 1 and the second body 2 are arranged opposite to each other and movably connected to each other, and the first body 1 and the second body 2 are used to be arranged at both ends of a battery 4 to be tested to clamp the battery 4 to be tested; two connectors 3 extending in the direction of the second body 2 are provided on the first body 1, and the ends of the two connectors 3 facing the second body 2 are respectively used to abut against the positive tab and the negative tab inside the battery 4 to be tested, and the two connectors 3 are used to connect with the detection line of the detection device; a detection channel 33 is provided inside the connector 3, and the detection channel 33 connects the two sides of the first body 1 facing and facing away from the second body 2, and the detection head 5 of the temperature measuring device is arranged in the detection channel 33, and is located at one end of the detection channel 33 close to the second body 2.

[0038] Specifically, the first body 1 and the second body 2 are plate structures, the first body 1 and the second body 2 are parallel to each other and arranged opposite to each other, and the first body 1 and the second body 2 can be slidably connected to the bracket, and the bracket extends from the first body 1 toward the second body 2, so that the first body 1 can move in the direction close to or away from the second body 2; when the battery 4 to be tested is placed between the first body 1 and the second body 2, the first body 1 and the second body 2 can be arranged at both ends of the battery 4 to be tested, and the first body 1 and the second body 2 are close to each other, so that the first body 1 and the second body 2 are clamped at both ends of the battery 4 to be tested; the first body 1 and the second body 2 can be made of plastic or synthetic resin materials, so that the first body 1 and the second body 2 cannot conduct electricity, thereby avoiding the electrical connection between the connector 3 and the battery 4 to be tested and making the first body 1 and the second body 2 charged as a whole.

[0039] The first body 1 and the second body 2 mentioned above can also be connected by a spring, so that the first body 1 can move relative to the second body 2 in a direction close to or away from the second body 2, so that after the battery 4 to be tested is between the first body 1 and the second body 2, the elasticity of the spring makes the first body 1 and the second body 2 approach each other, so that the first body 1 and the second body 2 can be clamped at both ends of the battery 4 to be tested.

[0040] The above-mentioned connecting member 3 can be selected as a tube or column structure, and a detection channel 33 is provided inside the connecting member 3. The connecting member 3 extends from the first body 1 toward the second body 2, and the detection channel 33 extends from the first body 1 toward the second body 2, that is, the extension directions of the connecting member 3 and the detection channel 33 are consistent.

[0041] The above-mentioned battery to be tested 4 includes a shell, a positive electrode ear, and a negative electrode ear. The positive electrode ear and the negative electrode ear are arranged inside the shell. Two power-through holes are arranged on one side of the shell, and the two power-through holes are arranged opposite to the positive electrode ear and the negative electrode ear respectively. After the battery to be tested 4 is arranged between the first body 1 and the second body 2, the side surface of the battery to be tested 4 with the two power-through holes faces the first body 1, so that the two connectors 3 can respectively pass through the two power-through holes on the shell and enter the inside of the shell, so that the ends of the two connectors 3 facing the second body 2 are respectively in contact with the positive electrode ear and the negative electrode ear, so that the ends of the two connectors 3 facing the second body 2 are respectively electrically connected to the positive electrode ear and the negative electrode ear.

[0042] The above-mentioned connecting parts 3 are made of conductive metal materials. After the two connecting parts 3 are connected to the detection line of the detection device, and the two connecting parts 3 are connected to the positive and negative ears of the battery 4 to be tested, the detection device can form a closed loop with the battery 4 to be tested through the two connecting parts 3, so that the detection device is electrically connected to the battery 4 to be tested, so that the detection device can perform charging and discharging detection operations on the battery 4 to be tested.

[0043] A through hole can be selectively provided on the above-mentioned connector 3 so that the connector 3 has a hollow structure, so that the space inside the connector 3 serves as a detection channel 33. The detection channel 33 can connect the two sides of the first body 1 facing and facing away from the second body 2 in the connector 3, that is, after the end of the connector 3 facing the second body 2 is connected to the pole ear of the battery 4 to be tested, the end of the detection channel 33 close to the second body 2 is shielded by the pole ear of the battery 4 to be tested, and the end of the detection head 5 is at the end of the detection channel 33 close to the second body 2. The distance between the detection head 5 at the end of the detection channel 33 close to the second body 2 and the pole ear is relatively close, which can reduce the error caused by the heat loss of the pole ear, so that the temperature data collected by the detection head 5 can accurately reflect the temperature change of the pole ear of the battery 4 to be tested.

[0044] The detection head 5 of the above-mentioned temperature measuring device enters the detection channel 33 through the end of the detection channel 33 away from the battery 4 to be tested, and the detection head 5 can move freely along the detection channel 33. The detection head 5 moves to the end of the detection channel 33 close to the second body 2. At this time, the detection head 5 is in a position close to the pole ear of the battery 4 to be tested, so that the detection head 5 can collect the temperature of the pole ear of the battery 4 to be tested when the battery 4 to be tested is working.

[0045] The two ends of the above-mentioned connecting member 3 can be selected to be located on both sides of the first body 1 along the direction of the first body 1 toward the second body 2, and the end of the connecting member 3 located on the side of the first body 1 facing the second body 2 can be used to be inserted into the interior of the battery 4 to be tested and connected with the pole ear inside the battery 4 to be tested; of course, it is also possible to select one end of the connecting member 3 to be flush with the side of the first body 1 away from the second body 2, and the other end to extend toward the direction of the second body 2, so that the end of the connecting member 3 facing the second body 2 can be inserted into the interior of the battery 4 to be tested and connected with the pole ear inside the battery 4 to be tested.

[0046] The detection head 5 of the temperature measuring device can be selected to include a transmission optical fiber, the head of the transmission optical fiber is connected to the fiber grating demodulator, and the tail of the transmission optical fiber is engraved with a fiber grating sensor with a length of 8-10 mm for temperature monitoring, so that the fiber grating sensor at the tail of the transmission optical fiber can detect the temperature of the internal ear of the battery 4 to be tested; the transmission optical fiber is non-conductive, so that the current on the connector 3 will not affect the work of the transmission optical fiber to detect the temperature;

[0047] The number of the above-mentioned detection heads 5 can be selected to be two, and the two detection heads 5 are respectively arranged in the two detection channels 33 to simultaneously detect the temperature of the positive electrode ear and the negative electrode ear; of course, the number of the detection head 5 can also be selected to be one, and one detection head 5 is arranged in any detection channel 33, so that the detection head 5 can detect the temperature of the positive electrode ear or the negative electrode ear.

[0048] The detection device has two detection lines, which are respectively connected to two connectors 3 so that the two detection lines are respectively electrically connected to the positive and negative tabs of the battery 4 to be tested, thereby forming a loop between the detection device and the battery 4 to be tested.

[0049] When the battery tab temperature testing device provided by the embodiment of the present disclosure is used specifically, the first body 1 and the second body 2 are arranged at the two ends of the battery 4 to be tested, and the first body 1 and the second body 2 are brought close to each other, so that the connecting piece 3 on the first body 1 is inserted into the interior of the battery 4 to be tested toward one end of the second body 2, and the two connecting pieces 3 are respectively connected to the positive tab and the negative tab of the battery 4 to be tested toward one end of the second body 2, and the detection head 5 of the temperature measuring device is inserted into the detection channel 33 from the end of the detection channel 33 away from the second body 2, and the detection head 5 moves along the detection channel 33 toward the second body 2, so that the detection head 5 moves to the end of the detection channel 33 close to the tab of the battery 4 to be tested; the detection line of the detection device is connected to the two connecting pieces 3 respectively, and the detection device is electrically connected to the battery 4 to be tested through the two connecting pieces 3, so that the detection device performs charging and discharging detection operations on the battery to be tested, and the detection head 5 of the temperature measuring device detects the temperature of the tab of the battery 4 to be tested in the detection channel 33.

[0050] The battery tab temperature testing device provided by the embodiment of the present disclosure comprises a first body 1, a second body 2 and a temperature measuring device; the first body 1 and the second body 2 are arranged relative to each other and are movably connected to each other, and the first body 1 and the second body 2 are used to be arranged at both ends of a battery 4 to be tested to clamp the battery 4 to be tested, so that the first body 1 and the second body 2 can be stably installed on the battery 4 to be tested; two connectors 3 extending in the direction of the second body 2 are provided on the first body 1, and the ends of the two connectors 3 facing the second body 2 are respectively used to abut against the positive tab and the negative tab inside the battery 4 to be tested, and the two connectors 3 are used to connect to the detection line of the detection device , so that the detection device can be electrically connected to the battery 4 to be tested through the two connectors 3, so that the detection device can perform detection operations on the battery 4 to be tested; a detection channel 33 is provided inside the connector 3, and the detection channel 33 connects the two sides of the first body 1 facing toward and away from the second body 2. The detection head 5 of the temperature measuring device is arranged in the detection channel 33 and is located at one end of the detection channel 33 close to the second body 2, so that the detection head 5 is close to the pole ear of the battery 4 to be tested, reducing the error caused by the heat loss of the pole ear, so that the temperature data collected by the detection head 5 can accurately reflect the temperature change of the pole ear of the battery 4 to be tested, thereby improving the accuracy of temperature monitoring during battery testing.

[0051] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, in some embodiments, the connecting member 3 includes a connecting tube 31 and a conductive member 32, the connecting tube 31 is penetrated on the first body 1 along the direction from the first body 1 to the second body 2, the detection channel 33 is arranged inside the connecting tube 31, the conductive member 32 is arranged on the first body 1 and connected to the connecting tube 31, and the detection line of the detection device is connected to the conductive member 32. In this arrangement, the connecting tube 31 is used to connect to the pole ear of the battery 4 to be tested, the conductive member 32 is connected to the connecting tube 31, and the connecting line of the detection device is connected to the conductive member 32, so that the connecting line of the detection device is electrically connected to the pole ear of the battery to be tested through the conductive member 32 and the connecting tube 31. The connecting tube 31 is a hollow tube structure with a large volume. It is inconvenient for the detection line to maintain a stable connection with the connecting tube 31, and the detection line is also easy to interfere with the line body of the detection head 5 on the connecting tube 31. The conductive member 32 is connected to the connecting tube 31, so that the detection line and the detection head 5 are respectively arranged on different structures of the connecting member 3, thereby avoiding mutual interference between the detection line and the detection head 5 and improving the convenience of connecting the detection device and the temperature measuring device to the connecting member 3.

[0052] Specifically, the connecting tube 31 is a metal tube extending from the first body 1 toward the second body 2, so that the connecting tube 31 can conduct electricity. The interior of the connecting tube 31 is hollow, and the space inside the connecting tube 31 is the detection channel 33. After the connecting tube 31 is passed through the first body 1, the detection channel 33 connects the two sides of the first body 1; it can be selected that the first body 1 is provided with an assembly hole, the connecting tube 31 is passed through the assembly hole, and the connecting tube 31 is bonded to the inner wall of the assembly hole so that the connecting tube 31 is passed through the first body 1; of course, the first body 1 can also be selected to be manufactured by an injection molding process, and the connecting tube 31 is placed in the injection mold of the first body 1, and the connecting tube 31 is passed through the first body 1 during the injection molding process of the first body 1.

[0053] The conductive member 32 may be a metal sheet or a metal block. The conductive member 32 may be bonded to the first body 1 , or a buckle may be provided on the first body 1 , and the conductive member 32 is connected to the buckle by buckling.

[0054] The above-mentioned conductive member 32 can be selectively arranged on the side of the first body 1 facing the second body 2, one end of the conductive member 32 is connected to the connecting tube 31, and the other end extends to the outside of the edge of the first body 1 in a direction away from the connecting tube 31, and the detection line of the detection device is connected to the end of the conductive member 32 away from the connecting tube 31; of course, the conductive member 32 can also be selected to be arranged on the side of the first body 1 facing away from the second body 2, one end of the conductive member 32 is connected to the outer side surface of the connecting tube 31, and the other end extends in a direction away from the connecting tube 31, and the detection line of the detection device is connected to the end of the conductive member 32 away from the connecting tube 31.

[0055] A metal clip may be optionally provided on the above-mentioned conductive member 32 to clamp the detection line of the detection device. Of course, a through hole may also be provided on the conductive member 32 to pass a bolt through the through hole to clamp the detection line of the detection device between the conductive member 32 and the end of the bolt.

[0056] Reference Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the two conductive members 32 are both arranged on the side of the first body 1 facing the second body 2; the first body 1 is provided with two connecting vias 14, and the two connecting vias 14 are respectively arranged opposite to the two conductive members 32, and the detection line of the detection device is connected to the conductive member 32 through the connecting vias 14. In this way, when the first body 1 is arranged on the battery 4 to be tested, the first body 1 can cover the conductive member 32, reduce the exposed area of ​​the conductive member 32, and avoid electric shock to the user, and the connecting vias 14 can make the detection line of the detection device electrically connected to the conductive member 32 through the connecting vias 14, so that the detection device can perform detection operation on the battery 4 to be tested.

[0057] Specifically, the two connecting parts 3 each include a conductive part 32, and the two conductive parts 32 are both located on the side of the first body 1 facing the second body 2, so that when the first body 1 is set on the battery 4 to be tested, the first body 1 can cover the conductive part 32, reduce the exposed area of ​​the conductive part 32, and avoid electric shock to the user.

[0058] The connection via 14 on the above-mentioned first body 1 can be selected to penetrate the first body 1 along the direction from the first body 1 to the second body 2, so that the connection via 14 can be opposite to the two conductive parts 32, and the detection line of the detection device can be selected to pass through the connection via 14 and abut against the conductive part 32, so that the detection line is electrically connected to the conductive part 32; of course, the connection via 14 can also be selected to be a screw hole, and a metal bolt is used to pass through the connection via 14 and abut against the conductive part 32, and the detection line is connected to the metal bolt passing through the connection via 14, so that the detection line and the conductive part 32 are electrically connected; or it is not limited to that the connection via 14 is a through hole, and a screw hole is set at a position opposite to the conductive part 32 and the connection via 14, and a metal bolt is used to pass through the connection via and the screw hole of the conductive part 32 to connect, and the detection line is connected to the metal bolt passing through the connection via 14, so that the detection line and the conductive part 32 are electrically connected.

[0059] Reference Figure 4 and Figure 7 As shown, in some embodiments, the conductive member 32 includes a first mounting plate 321, a second mounting plate 322 and a connecting plate 323; the first mounting plate 321 and the second mounting plate 322 are respectively connected to the two ends of the connecting plate 323, the first mounting plate 321 is connected to the connecting tube 31, and the second mounting plate 322 is arranged opposite to the connecting via 14. In this way, the first mounting plate 321 can be used for electrical connection with the connecting tube 31, the second mounting plate 322 is arranged opposite to the connecting via 14 to be used for electrical connection with the detection line passing through the connecting via 14, and the connecting plate 323 is used to adjust the relative position between the first mounting plate 321 and the second mounting plate 322, so that the second mounting plate 322 can be located at a position opposite to the connecting via 14, and the structures of the first mounting plate 321, the second mounting plate 322 and the connecting plate 323 are simple and the manufacturing cost is low.

[0060] Specifically, the first mounting plate 321, the second mounting plate 322 and the connecting plate 323 can be selected to be plate structures, the connecting plate 323 extends radially along the connecting tube 31, and the first mounting plate 321 and the second mounting plate 322 can be selected to be in the same plane as the connecting plate 323; of course, it is also possible to select the first body 1 to be recessed on one side toward the second body 2 to form a first limiting groove 11, the connecting plate 323 and the first mounting plate 321 are arranged at the bottom of the first limiting groove 11, the second mounting plate 322 is arranged on the side wall of the first limiting groove 11, and the connecting through hole 14 is located on the side wall of the first limiting groove 11, so that the connecting through hole 14 can be arranged relative to the second mounting plate 322.

[0061] The above-mentioned first mounting plate 321 can be optionally provided with a through hole, and the connecting tube 31 is inserted into the through hole of the first mounting plate 321, and the outer side surface of the connecting tube 31 is fit-connected with the inner wall of the through hole, so that the first mounting plate 321 is connected to the connecting tube 31; of course, it is also possible to select that the first mounting plate 321 is provided with a screw hole, and the outer side surface of the connecting tube 31 is provided with a thread, so that the connecting tube 31 is threadedly connected to the first mounting plate 321.

[0062] The above-mentioned second mounting plate 322 is arranged opposite to the connecting via 14, so that the detection line can abut against the second mounting plate 322 after passing through the connecting via 14. Of course, a through hole can also be set on the second mounting plate 322, so that the detection line passing through the connecting via 14 can be passed through the through hole of the second mounting plate 322, as long as the detection line can be electrically connected to the second mounting plate 322 through the connecting via 14.

[0063] Reference Figure 4 and Figure 7 As shown, in some embodiments, a first mounting hole 324 is provided on the first mounting plate 321, and the connecting tube 31 is inserted into the first mounting hole 324, and the connecting tube 31 abuts against the inner wall of the first mounting hole 324, and a second mounting hole 325 is provided on the second mounting plate 322, and the first mounting hole 324 is coaxially arranged with the connecting via 14. In this arrangement, the plugging of the connecting tube 31 with the first mounting hole 324 can electrically connect the first mounting plate 321 with the connecting tube 31, and the convenience of the electrical connection operation between the conductive member 32 and the connecting tube 31 is improved, and the detection line passing through the connecting via 14 can be inserted into the second mounting hole 325, so that the second mounting hole 325 can limit the movement of the detection line, and the stability of the electrical connection between the detection line and the second mounting plate 322 is improved.

[0064] Specifically, the first mounting hole 324 can be selected to be a through hole. After the connecting tube 31 is inserted into the first mounting hole 324, the outer side surface of the connecting tube 31 is connected to the inner wall of the first mounting hole 324 by welding. Of course, the conductive member 32 can also be bonded to the surface of the first body 1, so that after the connecting tube 31 is inserted into the first mounting hole 324, the outer side surface of the connecting tube 31 abuts against the inner wall of the first mounting hole 324, so that the first mounting plate 321 is electrically connected to the connecting tube 31.

[0065] The second mounting hole 325 can be a screw hole. A metal bolt passes through the connecting hole 14 and is threadedly connected to the second mounting hole 325 . The detection line is connected to the end of the metal bolt to achieve electrical connection with the second mounting plate 322 .

[0066] Reference Figure 6As shown, in some embodiments, a protection tube 34 is provided in the detection channel 33, and the interior of the protection tube 34 is connected to the detection channel 33, so that the end of the detection head 5 of the temperature measuring device in the detection channel 33 is located inside the protection tube 34. In this way, the detection head 5 can be located in the protection tube 34, and when the outside world collides with the connecting tube 31, the protection tube 34 absorbs the vibration on the connecting tube 31, reduces the vibration amplitude of the connecting tube 31, and prevents the inner wall of the connecting tube 31 from colliding with the detection head 5, so that the protection tube 34 protects the detection head 5.

[0067] Specifically, the protective tube 34 can be selected as a copper tube. A cover plate is provided at one end of the copper tube, which covers the port of the copper tube. A limit hole is provided on the cover plate, and the detection head 5 can be inserted into the interior of the copper tube through the limit hole. The copper tube is arranged inside the detection channel 33. The outer side surface of the copper tube can be connected to the inner wall of the detection channel 33 by welding or bonding. The end of the copper tube with the cover plate is arranged to face away from the second body 2, so that the detection head 5 can enter the interior of the copper tube through the limit hole when it moves along the detection channel 33 toward the second body 2.

[0068] Of course, the protective tube 34 can also be selected to be a hollow tube structure. The protective tube 34 is arranged inside the detection channel 33, so that when the detection head 5 moves along the detection channel 33, the detection head 5 can extend into the interior of the protective tube 34, so that the detection head 5 is surrounded by the protective tube 34 in the radial direction of the detection channel 33, so that the protective tube 34 can absorb the vibration on the connecting tube 31.

[0069] Reference Figures 1 to 4 As shown, in some embodiments, a wire management bracket 13 is provided on the side of the first body 1 facing away from the second body 2, and part of the connecting wires between the detection head 5 and the temperature measuring device are connected to the wire management bracket 13. In this way, part of the connecting wires between the detection head 5 and the temperature measuring device can be overlapped on the wire management bracket 13, so as to avoid the connecting wires being piled up at the opening of the detection channel 33 and hindering the detection head 5 from moving along the detection channel 33.

[0070] Specifically, the wire management bracket 13 can be selected to extend from the second body 2 toward the first body 1, so that there is a certain distance between the connecting wires on the wire management bracket 13 and the first body 1, thereby preventing the connecting wires from accumulating at the end of the detection channel 33 and hindering the detection head 5 from moving along the detection channel 33.

[0071] A through hole can be optionally set on the above-mentioned wire management bracket 13, and the detection head 5 of the temperature measuring device passes through the through hole on the wire management bracket 13 and then enters the detection channel 33, so that the connecting line is overlapped in the through hole of the wire management bracket 13; of course, an elastic clip can also be optionally set on the wire management bracket 13, and the elastic clip clamps the connecting line, so that part of the connecting line can be overlapped on the wire management bracket 13.

[0072] Reference Figures 1 to 7As shown, in some embodiments, the first body 1 is recessed on one side facing the second body 2 to form a first limiting groove 11, and the second body 2 is recessed on one side facing the first body 1 to form a second limiting groove 21, and the two ends of the battery 4 to be tested are respectively inserted into the first limiting groove 11 and the second limiting groove 21. Such a configuration improves the stability of the first body 1 and the second body 2 at the two ends of the battery 4 to be tested, and prevents the first body 1 and the second body 2 from being offset relative to the battery 4 to be tested when they are vibrated.

[0073] Specifically, the first limiting groove 11 and the second limiting groove 21 are both rectangular grooves, and the sizes of the first limiting groove 11 and the second limiting groove 21 are adapted to the battery 4 to be tested, so that the two ends of the battery 4 to be tested can be inserted into the first limiting groove 11 and the second limiting groove 21 respectively, and the two ends of the battery 4 to be tested are respectively abutted against the inner walls of the first limiting groove 11 and the second limiting groove 21.

[0074] Reference Figure 1 and Figure 2 As shown, in some embodiments, the first body 1 and the second body 2 are connected to each other through an elastic member. In this way, when the first body 1 and the second body 2 are arranged at the two ends of the battery 4 to be tested, the elastic member is in a tensioned state and drives the first body 1 and the second body 2 to approach each other, so that the first body 1 and the second body 2 are closely attached to the two ends of the battery 4 to be tested, and the stability of the first body 1 and the second body 2 on the battery 4 to be tested is improved.

[0075] Specifically, the first body 1 and the second body 2 can be connected by multiple springs, or by multiple elastic rubber strips. When the first body 1 and the second body 2 are at the two ends of the battery 4 to be tested, the elastic member is in a tensioned state, so that the first body 1 and the second body 2 are close to each other under the elastic force of the elastic member, so that the first body 1 and the second body 2 are tightly fitted at the two ends of the battery 4 to be tested. Of course, the first body 1 and the second body 2 can also be connected by an elastic member, the first body 1 and the second body 2 have a certain weight, the second body 2 is placed on the ground, the battery 4 to be tested is placed on the second body 2, the first body 1 is placed on the top side of the battery 4 to be tested, and the connector 3 is in a state of being inserted into the battery 4 to be tested, and the elastic force of an elastic member will not cause the first body 1 to deviate and fall off from the top side of the battery 4 to be tested.

[0076] Reference Figures 1 to 5As shown, in some embodiments, a first fixing member 12 is provided at the edge of the first body 1, a second fixing member 22 is provided at the edge of the second body 2, one end of the elastic member is detachably connected to the first fixing member 12, and the other end is detachably connected to the second fixing member 22. With such arrangement, when the first body 1 and the second body 2 are installed at the two ends of the battery 4 to be tested, the first body 1 and the second body 2 are first arranged at the two ends of the battery 4 to be tested, and when the elastic member is connected to the first fixing member 12 and the second fixing member 22, and the first body 1 and the second body 2 are removed from the battery 4 to be tested, the elastic member is disconnected from the first fixing member 12, so that the first body 1 can freely move in a direction away from the second body 2, thereby improving the convenience of installing and removing the battery tab temperature test device from the battery to be tested.

[0077] Specifically, the first fixing member 12 can be selected as a protrusion or a hook, and the second fixing member 22 can be selected as a protrusion or a hook. Rings are set at both ends of the elastic member, so that the first body 1 and the second body 2 can be first set at both ends of the battery 4 to be tested, and then the elastic member is stretched so that the rings at both ends of the elastic member can be respectively connected with the first fixing member 12 and the second fixing member 22; when the first body 1 and the second body 2 are removed from the battery 4 to be tested, the elastic member is separated from the first fixing member 12, so that the first body 1 can move freely in the direction away from the second body 2, thereby removing the first body 1 from the battery 4 to be tested.

[0078] Reference Figures 1 to 5 As shown, in some embodiments, the number of the first fixing member 12, the second fixing member 22 and the elastic member are all multiple; multiple first fixing members 12 are arranged at the edge of the first body 1 at intervals around the center of the first body 1, and multiple second fixing members 22 are arranged at the edge of the second body 2 at intervals around the center of the second body 2; along the direction from the first body 1 to the second body 2, multiple first fixing members 12 and multiple second fixing members 22 are arranged one by one, and the relative first fixing members 12 and second fixing members 22 form a fixing member group, and multiple elastic members are connected to the multiple fixing member groups one by one. In this way, the first body 1 and the second body 2 are connected to each other through multiple elastic members, and the elastic force applied by the multiple elastic members to the first body 1 and the second body 2 is in a balanced state in the direction perpendicular to the first body 1 toward the second body 2, thereby improving the stability of the first body 1 and the second body 2 on the battery 4 to be tested.

[0079] Specifically, a rectangular block structure of the first body 1 and the second body 2 can be selected, a first fixing member 12 is respectively arranged on the four edges of the first body 1, a second fixing member 22 is respectively arranged on the four edges of the second body 2, and the number of elastic members is four, so that the four first fixing members 12 and the four second fixing members 22 are relatively arranged in a one-to-one correspondence to form four fixing member groups, and the four elastic members are connected to the four connecting member groups in a one-to-one correspondence, so that multiple positions of the first body 1 and the second body 2 are subjected to the elastic force of the elastic member, so that the elastic forces exerted on the first body 1 and the second body 2 are symmetrical and balanced with each other, so that the first body 1 and the second body 2 are subjected to balanced forces and are stably arranged at both ends of the battery 4 to be tested.

[0080] Of course, it is also possible to choose to provide a first fixing member 12 at two opposite edges of the first body 1, and a second fixing member 22 at two opposite edges of the second body 2. Along the direction from the first body 1 to the second body 2, the two first fixing members 12 and the two second fixing members 22 are arranged one by one in relative correspondence to form two fixing member groups. The number of elastic members is two, and the two elastic members are respectively connected to the two fixing member groups, so that the two elastic forces acting on the first body 1 and the second body 2 are in a balanced state in the direction perpendicular to the first body 1 toward the second body 2.

[0081] When the battery tab temperature testing device provided by the embodiment of the present disclosure is used, the first body 1 and the second body 2 are arranged at the two ends of the battery 4 to be tested, and the multiple elastic members are connected to the multiple fixing member groups, so that the elastic force of the elastic members drives the first body 1 and the second body 2 to approach each other, so that the first body 1 and the second body 2 clamp the battery 4 to be tested; the two connecting tubes 31 on the first body 1 are inserted into the two power-through holes of the battery 4 to be tested toward one end of the second body 2, so that the two connecting tubes 31 are respectively connected to the positive tab and the negative tab inside the battery 4 to be tested, and the detection device is provided with two detection lines, and the two detection lines are respectively connected to the positive tab and the negative tab inside the battery 4 to be tested. The two detection lines are respectively passed through two connecting holes 14, so that the two detection lines are electrically connected to the second mounting plates 322 of the two conductive members 32; the temperature measuring device is provided with two detection heads 5, and the two detection heads 5 respectively enter the detection channel 33 through the two detection channels 33 at one end away from the second body 2, and the detection head 5 moves along the detection channel 33 so that the detection head 5 is located in the protection tube 34 of the detection channel 33, and the detection head 5 moves to the end of the detection channel 33 close to the second body 2; the detection device performs charging and discharging detection on the battery 4 to be tested through the two detection lines, and the two detection heads 5 respectively detect the temperature of the positive ear and the negative ear.

[0082] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0083] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery tab temperature testing device, characterized in that: It comprises a first body (1), a second body (2) and a temperature measuring device; The first body (1) and the second body (2) are arranged opposite to each other and are movably connected to each other. The first body (1) and the second body (2) are used to be arranged at two ends of the battery to be tested (4) to clamp the battery to be tested (4); The first body (1) is provided with two connecting members (3) extending in a direction toward the second body (2), and the ends of the two connecting members (3) facing the second body (2) are respectively used to abut against the positive electrode ear and the negative electrode ear inside the battery (4) to be tested, and the two connecting members (3) are both used to connect to the detection line of the detection device; A detection channel (33) is provided inside the connecting member (3), and the detection channel (33) connects the two sides of the first body (1) facing toward and facing away from the second body (2). The detection head (5) of the temperature measuring device is arranged in the detection channel (33) and is located at one end of the detection channel (33) close to the second body (2).

2. The battery tab temperature testing device according to claim 1, characterized in that: The connecting member (3) comprises a connecting tube (31) and a conductive member (32); the connecting tube (31) is arranged on the first body (1) in a direction from the first body (1) toward the second body (2); the detection channel (33) is arranged inside the connecting tube (31); the conductive member (32) is arranged on the first body (1) and connected to the connecting tube (31); and the detection line of the detection device is connected to the conductive member (32).

3. The battery tab temperature testing device according to claim 2, characterized in that: The two conductive members (32) are both arranged on a side of the first body (1) facing the second body (2); The first body (1) is provided with two connection vias (14), the two connection vias (14) are respectively arranged opposite to the two conductive members (32), and the detection line of the detection device is connected to the conductive member (32) through the connection vias (14).

4. The battery tab temperature testing device according to claim 3, characterized in that: The conductive member (32) comprises a first mounting plate (321), a second mounting plate (322) and a connecting plate (323); The first mounting plate (321) and the second mounting plate (322) are respectively connected to two ends of the connecting plate (323); the first mounting plate (321) is connected to the connecting pipe (31); and the second mounting plate (322) is arranged opposite to the connecting through hole (14).

5. The battery tab temperature testing device according to claim 4, characterized in that: The first mounting plate (321) is provided with a first mounting hole (324), the connecting tube (31) is inserted into the first mounting hole (324), and the connecting tube (31) abuts against the inner wall of the first mounting hole (324); the second mounting plate (322) is provided with a second mounting hole (325), and the first mounting hole (324) is coaxially arranged with the connecting through hole (14).

6. The battery tab temperature testing device according to any one of claims 1 to 5, characterized in that: A protection tube (34) is provided in the detection channel (33), and the interior of the protection tube (34) is communicated with the detection channel (33), so that the end of the detection head (5) in the detection channel (33) is located inside the protection tube (34).

7. The battery tab temperature testing device according to any one of claims 1 to 5, characterized in that: A wire management bracket (13) is provided on a side of the first body (1) facing away from the second body (2), and part of the connecting wires between the detection head (5) and the temperature measuring device are connected to the wire management bracket (13).

8. The battery tab temperature testing device according to any one of claims 1 to 5, characterized in that: The first body (1) is recessed on one side facing the second body (2) to form a first limiting groove (11), and the second body (2) is recessed on one side facing the first body (1) to form a second limiting groove (21), and the two ends of the battery (4) to be tested are respectively inserted into the first limiting groove (11) and the second limiting groove (21).

9. The battery tab temperature testing device according to any one of claims 1 to 5, characterized in that: The first body (1) and the second body (2) are connected to each other via an elastic member.

10. The battery tab temperature testing device according to claim 9, characterized in that: A first fixing member (12) is provided on the edge of the first body (1), a second fixing member (22) is provided on the edge of the second body (2), one end of the elastic member is detachably connected to the first fixing member (12), and the other end is detachably connected to the second fixing member (22).

11. The battery tab temperature testing device according to claim 10, characterized in that: The first fixing member (12), the second fixing member (22) and the elastic member are all multiple in number; A plurality of first fixing members (12) are arranged at intervals around the center of the first body (1) and at the edge of the first body (1); a plurality of second fixing members (22) are arranged at intervals around the center of the second body (2) and at the edge of the second body (2); Along the direction from the first body (1) toward the second body (2), a plurality of the first fixing members (12) and a plurality of the second fixing members (22) are arranged relatively to each other in a one-to-one correspondence, the first fixing members (12) and the second fixing members (22) relatively to each other form a fixing member group, and a plurality of the elastic members are connected to the plurality of the fixing member groups in a one-to-one correspondence.

Images