Cable follow-up mechanism, vertical formation clamp and battery detection equipment

Abstract

The utility model provides a cable follow-up mechanism, a vertical formation clamp and battery detection equipment. The cable follow-up mechanism comprises a bottom plate, a guide column vertically penetrating through the bottom plate, a first supporting piece horizontally arranged on the guide column, a first driving piece arranged on the surface of the bottom plate and a second supporting piece vertically arranged. Wherein the first supporting piece, the second supporting piece and the first driving piece are all located above the bottom plate, and the first supporting piece is used for supporting and connecting a cable arranged on a layer plate in the vertical formation clamp and is suitable for moving downwards along the guide column along with the layer plate; the second supporting piece is used for abutting against the first supporting piece under the driving of the first driving piece when the laminate moves to the pressurizing position, so that the first supporting piece provides an upward first supporting force for the cable, the pulling problem of the cable to the laminate can be remarkably reduced, the downward pressure generated by the cable to the laminate is reduced, and the reliability of the cable is improved. And the pressurization effect of formation is effectively ensured.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a cable follower mechanism, a vertical formation fixture, and a battery testing device. Background Art

[0002] During the battery formation process, in order to avoid battery bulging, the battery must be effectively pressurized. This is because the internal chemical reaction will generate a large amount of heat during the battery formation process, causing the battery volume to change. If the heat cannot be dispersed in a timely and effective manner, the battery will bulge due to excessive internal pressure. Therefore, it is very important to pressurize the battery.

[0003] However, in the existing vertical pressurized formation fixture, it is necessary to connect the power cabinet and the probe assembly on the shelf through cables. In particular, when multiple battery cells need to be pressurized on each shelf at the same time, the cables need to extend to the upper surface of the shelf, which will exert downward pressure on the shelf. As a result, during the pressurization process of the shelf, there will be a problem of the cables pulling the shelf. That is, the downward pressure generated by the cables will cause the pressure exerted by the shelf on the battery cells to increase, affecting the pressurization effect of the formation. Utility Model Content

[0004] The main purpose of the embodiments of the present application is to propose a cable follower mechanism, a vertical formation fixture and a battery testing device to solve the technical problem that during the layer pressurization process of the traditional solution, the cable pulls the layer, and the downward pressure generated by the cable causes the layer to apply an increased pressure on the battery cell, affecting the pressurization effect of the formation.

[0005] In the first aspect, to achieve the above-mentioned purpose, an embodiment of the present application proposes a cable following mechanism, which is applied to a vertical forming fixture, and the cable following mechanism comprises: a base plate, a guide column vertically passing through the base plate, a first support member horizontally arranged on the guide column, a first driving member arranged on the surface of the base plate, and a second support member vertically arranged; wherein, the first support member, the second support member and the first driving member are all located above the base plate, the first support member is used to support and connect the cable arranged on the middle plate of the vertical forming fixture, and is suitable for following the layer plate to move downward along the guide column; the second support member is used to abut against the first support member under the drive of the first driving member when the layer plate moves to the pressurized position, so that the first support member provides a first upward supporting force for the cable.

[0006] In some embodiments, a slot is provided at a position of the second support member close to the first support member. When the layer plate moves to the pressurized position, the first driving member is used to drive the second support member to move toward the second support member so that the slot is plugged into and matched with the first support member. The second support member provides an upward second supporting force to the first support member through the slot.

[0007] In some embodiments, a second driving member is disposed under the bottom plate, and the second driving member is used to provide an upward third supporting force for the second supporting member when the second supporting member supports and fixes the first supporting member.

[0008] In some embodiments, when a pressure detection unit is provided on the layer plate, the second driving member is electrically connected to the pressure detection unit, and is used to adjust the third supporting force according to the battery cell pressure data obtained by the pressure detection unit to change the magnitude of the first supporting force.

[0009] In the second aspect, to achieve the above-mentioned purpose, an embodiment of the present application proposes a vertical forming fixture, which includes a fixture frame, a cable follower mechanism as described in any one of the embodiments of the first aspect above, which is arranged on one side of the fixture frame, and a plurality of layer plates placed in the fixture frame, and the layer plates are connected with cables.

[0010] In some embodiments, a plurality of counterweight blocks are disposed on the outside of the clamp frame, and the counterweight blocks are connected to the layer plate via ropes, and the counterweight blocks are used to apply a vertical upward force to the layer plate.

[0011] In some embodiments, the four corners of the layer plate are connected to the counterweight blocks via ropes.

[0012] In some embodiments, the fixture frame is further provided with an offset detection unit, and the offset detection unit is used to obtain the downward offset of the layer plate.

[0013] In some embodiments, a pressure detection unit is provided on the base of the fixture frame, and the surface of the pressure detection unit is in contact with the bottom of the layer plate. A plurality of pressure sensing points are provided on the surface of the pressure detection unit, and each of the pressure sensing points corresponds to at least one group of local pressure driving components provided on the layer plate, and the layer plate carries multiple groups of battery cells; when the layer plate is used to simultaneously pressurize multiple groups of battery cells, the pressure detection unit is used to obtain battery cell pressure data of different battery cells through the plurality of pressure sensing points, so that the corresponding local pressure driving components perform pressure compensation on the battery cells according to the battery cell pressure data.

[0014] In a third aspect, to achieve the above-mentioned purpose, an embodiment of the present application proposes a battery testing device, comprising a vertical formation fixture as described in any one of the embodiments in the above-mentioned second aspect.

[0015] The cable following mechanism proposed in the embodiment of the present application has the following beneficial effects: the present application proposes a cable following mechanism, which is applied to a vertical forming fixture, and the cable following mechanism comprises: a base plate, a guide column vertically passing through the base plate, a first support member horizontally arranged on the guide column, a first driving member arranged on the surface of the base plate, and a second support member vertically arranged; wherein the first support member, the second support member and the first driving member are all located above the base plate, the first support member is used to support and connect the cable arranged on the middle plate of the vertical forming fixture, and is suitable for following the layer plate to move downward along the guide column; the second support member is used to abut against the first support member under the drive of the first driving member when the layer plate moves to the pressurized position, so as to press the first support member A support fixation is formed so that the first support member provides a first upward supporting force for the cable. It can be understood that the present application scheme realizes the supporting connection of the cable connected to the layer plate through the first support member, and in the process of the layer plate moving downward, the first support member moves downward accordingly. When the layer plate moves to the formation pressurization position, the second support member can be driven by the first driving member to move toward the first support member. At this time, the second support member will fix the first support member and provide an upward supporting force for the first support member, so that the first support member can provide support for the cable during pressurization, thereby significantly reducing the problem of the cable pulling on the layer plate, reducing the downward pressure generated by the cable on the layer plate, and effectively ensuring the pressurization effect of the formation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of a cable follower mechanism provided in an embodiment of the present application;

[0017] Figure 2 is a partial structural schematic diagram of a cable follower mechanism provided in an embodiment of the present application;

[0018] Figure 3 It is a structural schematic diagram of the front direction of the vertical forming fixture provided in an embodiment of the present application;

[0019] Figure 4 It is a schematic structural diagram of the back side of the vertical forming fixture provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0023] During the formation process of the battery, in order to avoid bulging of the battery, the battery must be effectively pressurized. This is because during the formation process of the battery, the internal chemical reaction will generate a large amount of heat, causing the battery volume to change. If the heat cannot be dispersed in time and effectively, the battery will bulge due to excessive internal pressure. Therefore, it is very important to pressurize the battery. However, in the existing vertical pressurized formation fixture, it is necessary to connect the power cabinet and the probe assembly on the shelf by cables. In particular, when multiple battery cells need to be pressurized on each shelf at the same time, the cables need to extend to the upper surface of the shelf, which will generate downward pressure on the shelf, so that during the pressurization process of the shelf, there will be a problem of the cable pulling the shelf, that is, the downward pressure generated by the cables will cause the pressure applied by the shelf to the battery cells to increase, affecting the pressurization effect of the formation.

[0024] In order to solve the technical problem that during the pressurization process of the layer plate in the traditional solution, the cable pulls the layer plate, and the downward pressure generated by the cable causes the pressure applied by the layer plate to the battery cell to increase, thereby affecting the pressurization effect of the formation, the present embodiment provides a cable following mechanism, a vertical formation fixture and a battery testing device, the cable following mechanism comprising: a bottom plate, a guide column vertically passing through the bottom plate, a first support member horizontally arranged on the guide column, a first driving member arranged on the surface of the bottom plate and a second support member vertically arranged; wherein the first support member, the second support member and the first driving member are all located above the bottom plate, the first support member is used to support and connect the cable arranged on the layer plate in the vertical formation fixture, and is suitable for following the layer plate to move downward along the guide column; the second support member is used to abut against the first support member under the drive of the first driving member when the layer plate moves to the pressurization position, and support and fix the first support member, so that the first support member provides an upward first supporting force for the cable, thereby significantly reducing the problem of the cable pulling the layer plate, reducing the downward pressure generated by the cable on the layer plate, and effectively ensuring the pressurization effect of the formation.

[0025] A detailed description is given below in conjunction with the accompanying drawings.

[0026] Please refer to Figure 1and Figure 2 , Figure 1 is a schematic structural diagram of a cable follower mechanism 100 provided in an embodiment of the present application, Figure 2 1 is a partial structural diagram of a cable follower mechanism 100 provided in an embodiment of the present application; in the first aspect, in order to achieve the above-mentioned purpose, an embodiment of the present application proposes a cable follower mechanism 100, the cable follower mechanism 100 is applied to a vertical forming fixture, and the cable follower mechanism 100 comprises: a bottom plate 101, a guide column 102 vertically passing through the bottom plate 101, a first support member 103 horizontally arranged on the guide column 102, a first driving member 106 arranged on the surface of the bottom plate 101, and a second support member 106 arranged vertically. 5; wherein the first support member 103, the second support member 105 and the first driving member 106 are all located above the bottom plate 101; the first support member 103 is used to support and connect the cable 104 arranged on the middle plate of the vertical forming fixture, and is suitable for following the plate to move downward along the guide column 102; the second support member 105 is used to support and fix the first support member 103 under the drive of the first driving member 106 when the plate moves to the pressurized position, so that the first support member 103 provides a first upward supporting force for the cable 104.

[0027] It can be understood that the present application scheme realizes the support connection of the cable 104 connected to the layer plate through the first support member 103, and when the layer plate moves downward, the first support member 103 moves downward accordingly. When the layer plate moves to the formation pressurization position, the second support member 105 can be driven by the first driving member 106 to move toward the first support member 103. At this time, the second support member 105 will fix the first support member 103 and provide an upward supporting force for the first support member 103, so that the first support member 103 can provide support for the cable 104 during pressurization, thereby significantly reducing the pulling problem of the cable 104 on the layer plate, reducing the downward pressure generated by the cable 104 on the layer plate, and effectively ensuring the pressurization effect of the formation.

[0028] In some embodiments, Figure 1 and Figure 2 As shown, the first support member 103 can slide in the vertical direction along the guide column 102, and then move downward along the guide column 102 along with the pressurized downward movement of the layer plate, so as to ensure that when the layer plate reaches the preset pressurized position, the first support member 103 can still fix the cable 104 and provide the cable 104 with a first upward supporting force.

[0029] In some embodiments, a plurality of parallel first support members 103 are arranged along the guide column 102 according to a preset fixed interval, and a plurality of cables 104 of a plurality of layer boards are connected to corresponding first support members 103, so that the plurality of first support members 103 can all be fixedly connected to the corresponding cables 104 and provide an upward first supporting force for the cables 104, thereby reducing the downward pressure exerted by the cables 104 on the layer boards.

[0030] In some embodiments, a slot 108 is provided at a position of the second support member 105 close to the first support member 103. When the layer plate moves to the pressurized position, the first driving member 106 is used to drive the second support member 105 to move toward the second support member 105 so that the slot 108 is plugged into and matched with the first support member 103. The second support member 105 provides an upward second supporting force to the first support member 103 through the slot 108, so that the first support member 103 can effectively provide an upward first supporting force to the cable 104.

[0031] In some embodiments, two second support members 105 are arranged in parallel to correspond to two adjacent guide columns 102. A plurality of first support members 103 are arranged on the guide columns 102 at corresponding positions on both sides of the two second support members 105. At the same time, the two first support members 103 at the same height are connected by a connecting plate. A plurality of slots 108 corresponding to the plurality of first support members 103 are arranged on the second support member 105. When the layer plate moves to the pressurized position, the first driving member 106 is used to horizontally drive the two second support members 105 to move toward the second support member 105 on which the pressurized layer plate cable 104 is fixed. , so that the slots 108 of the two second support members 105 are plugged into and matched with the connecting plate, and the second support member 105 provides an upward second supporting force for the first support member 103 through the slots 108 and the connecting plate. It can be imagined that the connecting plate is supported and fixed by the slots 108 of the two second support members 105, so that the two first support members 103 can support and fix the two cables 104 of the pressurized layer board at the same height, so as to further improve the supporting effect of the layer board, and make the support of the cable 104 more stable. Similarly, it can be imagined that multiple cables 104 of the layer board can also be supported at the same time through the present application.

[0032] In some embodiments, a second driving member is disposed below the bottom plate 101, and the second driving member includes: Figure 1 and Figure 2The supporting cylinder 107 shown in the figure is used to provide an upward third supporting force for the second supporting member 105 when the second supporting member 105 supports and fixes the first supporting member 103. Specifically, the pushing portion of the supporting cylinder 107 is located directly below the second supporting member 105, and a through hole is provided on the bottom plate 101 directly below the second supporting member 105, so that the pushing portion can pass through the bottom plate 101 through the through hole and contact the bottom of the second supporting member 105, and then when the layer plate moves to the pressurized position, the supporting cylinder 107 can provide an upward third supporting force for the second supporting member 105 through the pushing portion.

[0033] It can be imagined that when the supporting cylinder 107 pushes the second supporting member 105, since the second supporting member 105 supports and fixes the first supporting member 103, the first supporting member 103 supports and connects the cable 104 set on the middle plate of the vertical forming fixture. Therefore, when the supporting cylinder 107 provides an upward third supporting force for the second supporting member 105 and the third supporting force changes, the first supporting force will also change accordingly, and then the supporting effect provided by the first supporting member 103 for the cable 104 can be changed by adjusting the pressurization pressure of the supporting cylinder 107. Therefore, in some embodiments, when a pressure detection unit is provided on the layer plate, the supporting cylinder 107 is electrically connected to the pressure detection unit, and is used to adjust the third supporting force according to the battery cell pressure data obtained by the pressure detection unit to change the size of the first supporting force, that is, by giving the measured pressure, the supporting force on the cable 104 can be adjusted by adjusting the output pressure of the supporting cylinder 107, and the pressure is further adjusted to improve the pressure uniformity.

[0034] Please refer to Figure 3 and Figure 4 , Figure 3 3 is a schematic diagram of the structure of the vertical forming fixture 300 provided in an embodiment of the present application from the front direction. Figure 4300 is a schematic diagram of the structure of the back side of the vertical forming fixture 300 provided in the embodiment of the present application; in the second aspect, in order to achieve the above-mentioned purpose, the embodiment of the present application proposes a vertical forming fixture 300, the vertical forming fixture 300 includes a fixture frame 301, a cable follower mechanism 100 as any one of the embodiments of the first aspect above arranged on one side of the fixture frame 301, and a plurality of layer plates 302 placed in the fixture frame 301, the layer plates 302 are connected to the cables 104, wherein the cables 104 can be It is conceivable that, when the layer plate 302 moves downward, the first support member 103 also moves downward accordingly. When the layer plate 302 reaches the formation pressurization position, the first driving member 106 will drive the second support member 105 to be close to the first support member 103. At this time, the second support member 105 will fix the first support member 103 to provide it with an upward supporting force. This can prevent the cable 104 in the vertical formation fixture 300 from pulling the layer plate 302, reduce the downward pressure on the layer plate 302, and thus ensure the pressurization effect of the formation.

[0035] In some embodiments, a plurality of counterweights 303 are disposed on the outside of the fixture frame 301. The counterweights 303 are connected to the layer plates 302 via ropes. The counterweights 303 are used to apply a vertical upward force to the layer plates 302. The layer plates 302 at the bottom of the fixture frame 301 may not be connected to the counterweights 303. The counterweights 303 are used to apply a vertical upward force to the layer plates 302 to avoid affecting the pressure control of the battery cells due to the weight of the layer plates 302 themselves.

[0036] In some embodiments, the fixture frame 301 is an external support structure for preventing the layer 302 from being Figure 3 As shown, the clamp frame 301 includes a base and two side support plates arranged opposite to each other on the base, a rope connected to the counterweight block 303 passes through the top of the side support plate, and multiple counterweight blocks 303 are suspended on the outer side of the side support. The cable follower mechanism can be set in the direction where the side support plate is not set on the base.

[0037] In some embodiments, the four corners of the layer plate 302 are connected to the counterweight blocks 303 by ropes. It can be understood that the four corners of the layer plate 302 are connected to the counterweight blocks 303 so that the layer plate 302 is evenly stressed, avoiding the method of connecting the counterweight blocks 303 diagonally, which causes the layer plate 302 to be asymmetrically stressed, resulting in increased deformation and further leading to the problem of low pressure uniformity.

[0038] In some embodiments, an offset detection unit is also provided on the clamp frame 301, and the offset detection unit is used to obtain the downward pressure offset of the layer plate 302. After obtaining the downward pressure offset, the downward pressure offset can be used to realize timely feedback and correction of the position of the layer plate 302 through the corresponding driving component, thereby further ensuring the pressurization effect of the formation.

[0039] In some embodiments, a pressure detection unit is provided on the base of the clamp frame 301, and the surface of the pressure detection unit is in contact with the bottom of the layer plate 302. A plurality of pressure sensing points are provided on the surface of the pressure detection unit, and each pressure sensing point corresponds to at least one group of local pressure driving members provided on the layer plate 302, and the layer plate 302 carries multiple groups of battery cells; when the layer plate 302 is used to simultaneously pressurize and form multiple groups of battery cells, the pressure detection unit is used to obtain the battery cell pressure data of different battery cells through the plurality of pressure sensing points, so that the corresponding local pressure driving members perform pressure compensation on the battery cells according to the battery cell pressure data. It can be imagined that, when the layer plate 302 can carry multiple battery cells, the multiple groups of battery cells can be pressurized and formed simultaneously. At the same time, a plurality of pressure sensing points are provided on the surface of the pressure detection unit on the base, and the pressures of different battery cells can be respectively known. Each pressure sensing point corresponds to at least one group of local pressure driving members, thereby realizing pressure compensation control to optimize the pressurization effect of formation and prevent the battery from bulging due to excessive or uneven internal pressure.

[0040] It is worth noting that, in some embodiments, the second driving component in the present application adjusts the pressure of the piezoelectric cell according to the force information, and the local pressure driving component performs pressure compensation on the battery cell according to the battery cell pressure data. These related steps are all performed under the control of a microcontroller outside or inside the battery detection equipment. The microcontroller and the specific adjusted pressure values ​​of the second driving component and the local pressure driving component can be set by technical personnel in this field according to actual conditions, and the specific setting details are not related to the structural features embodied in the present application.

[0041] In the third aspect, to achieve the above-mentioned purpose, the embodiment of the present application proposes a battery testing device, including a vertical formation fixture as in any one of the embodiments in the second aspect above. It is worth noting that since the battery testing device of the embodiment of the present application has the vertical formation fixture of the above-mentioned embodiment, and the vertical formation fixture of the above-mentioned embodiment includes the cable follow-up mechanism of the above-mentioned embodiment, therefore, the specific implementation manner and technical effects of the manufacturing device of the embodiment of the present application can refer to the specific implementation manner and technical effects of the vertical formation fixture and the cable follow-up mechanism of any of the above-mentioned embodiments.

[0042] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0043] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A cable follower mechanism, characterized in that: The cable follower mechanism is applied to a vertical forming fixture, and the cable follower mechanism comprises: a bottom plate, a guide column vertically passing through the bottom plate, a first support member horizontally arranged on the guide column, a first driving member arranged on the surface of the bottom plate, and a second support member vertically arranged; Among them, the first support member, the second support member and the first driving member are all located above the base plate, the first support member is used to support the cable set on the layer plate connected to the vertical forming fixture, and is suitable for following the layer plate to move downward along the guide column; the second support member is used to abut against the first support member under the drive of the first driving member when the layer plate moves to the pressurized position, so that the first support member provides a first upward supporting force for the cable.

2. The cable follower mechanism according to claim 1, characterized in that: The second support member is provided with a slot at a position close to the first support member. When the layer plate moves to the pressurized position, the first driving member is used to drive the second support member to move toward the second support member so that the slot is plugged into and matched with the first support member. The second support member provides a second upward supporting force for the first support member through the slot.

3. The cable follower mechanism according to claim 1, characterized in that: A second driving member is disposed below the bottom plate, and the second driving member is used for providing an upward third supporting force to the second supporting member when the second supporting member supports and fixes the first supporting member.

4. The cable follower mechanism according to claim 3, characterized in that: In the case where a pressure detection unit is provided on the layer plate, the second driving member is electrically connected to the pressure detection unit and is used to adjust the third supporting force according to the battery cell pressure data obtained by the pressure detection unit to change the magnitude of the first supporting force.

5. A vertical forming fixture, characterized in that: The vertical forming fixture comprises a fixture frame, a cable follower mechanism as claimed in any one of claims 1 to 4 arranged on one side of the fixture frame, and a plurality of layer plates placed in the fixture frame, wherein the layer plates are connected with cables.

6. The vertical chemical formation fixture according to claim 5, characterized in that: A plurality of counterweight blocks are arranged on the outside of the clamp frame, and the counterweight blocks are connected to the layer plate through ropes. The counterweight blocks are used to apply a vertical upward force to the layer plate.

7. The vertical chemical formation fixture according to claim 6, characterized in that: The four corners of the layer plate are connected with the counterweight blocks through ropes.

8. The vertical chemical formation fixture according to claim 5, characterized in that: The fixture frame is also provided with an offset detection unit, and the offset detection unit is used to obtain the downward offset of the layer plate.

9. The vertical chemical formation fixture according to claim 5, characterized in that: A pressure detection unit is arranged on the base of the fixture frame, the surface of the pressure detection unit contacts the bottom of the layer plate, a plurality of pressure sensing points are arranged on the surface of the pressure detection unit, each of the pressure sensing points corresponds to at least one group of local pressure driving members arranged on the layer plate, and the layer plate carries a plurality of groups of battery cells; When the layer plate is used to pressurize and form multiple groups of battery cells at the same time, the pressure detection unit is used to obtain battery cell pressure data of different battery cells through multiple pressure sensing points, so that the corresponding local pressure driving component can perform pressure compensation on the battery cells according to the battery cell pressure data.

10. A battery testing device, characterized in that: It comprises the vertical forming fixture as described in any one of claims 5 to 9.

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