Push balance structure and battery formation fixture

Abstract

The present invention belongs to the field of laminating machinery, and in particular relates to a pushing balancing structure and a battery formation fixture, comprising two groups of balancing assemblies symmetrically connected at both ends of the same group of laminate assemblies, the balancing assemblies comprising two connecting members, a guide seat and a guide rod; the guide seat is arranged at the end of the middle layer of the laminate assembly, the guide seat is provided with a guide hole, and the guide rod slides through the guide hole; the connecting member is provided with a first connecting part and a second connecting part; the second connecting part is provided with a connecting hole; the first connecting pin passes through the two connecting holes and is connected to the guide rod; the first connecting parts of the two connecting members are respectively pivotally connected to the ends of the other two layer boards of the same group of laminate assemblies; one layer of the laminate assembly is pushed, and each connecting member in the balancing assemblies on both sides of the laminate assembly pushes the corresponding guide rod to slide along the guide hole, and the guide rod pushes the other connecting member, so that the two connecting members rotate around the first connecting pin to compress the distance between adjacent layer boards in the laminate assembly.

Description

Technical Field

[0001] The invention belongs to the field of laminating machinery, and in particular relates to a pushing balance structure and a battery formation fixture. Background Art

[0002] Lamination mechanisms are widely used in mechanical equipment, for example, battery capacity separation fixtures and battery formation fixtures, in which batteries are pressed tightly by lamination.

[0003] In the Chinese patent literature, the publication number is: CN105958123A, which discloses a 64-channel polymer lithium-ion battery formation fixture, which records: the 64-channel laminate includes a heating plate, a fixture plate, a temperature sensor, a connecting chain, a silicone plate and a battery pole ear contact pin for clamping the pole ear of the polymer lithium-ion battery, and a plurality of fixture plates are arranged in parallel with each other, and the polymer lithium-ion battery is clamped between two of them; the surface of the fixture plate for clamping the polymer lithium-ion battery is attached with a heating plate, and the surface opposite to the heating plate is attached with a silicone plate; the inside of the fixture plate is equipped with a temperature sensor, and the ends of the fixture plate are connected to each other through a connecting chain. The pressure control device presses the 64-channel laminate and automatically adjusts the pressure to meet the set requirements. The temperature control cabinet is an operation to control the temperature of each laminate, and the battery formation cabinet is an operation to charge and discharge the polymer lithium-ion battery after it is pressurized and heated.

[0004] However, when the clamp pressure plate is pressing the battery, the clamp pressure plate is supported on the guide rod, and the guide rod needs to support the clamp pressure plate and the battery. Due to the inconsistent thickness of the battery, and there is a fitting gap between the clamp pressure plate and the guide rod, the clamp pressure plate will be tilted during pressing, which will lead to uneven pressure on the battery. Therefore, during pressure formation or capacity separation, the uneven pressure on the battery makes it difficult to control the quality of battery formation or capacity separation, thereby reducing the performance of the battery. In addition, when the clamp pressure plate is pressing the battery, it is stuck on the guide rod. Summary of the invention

[0005] The purpose of the present invention is to provide a push-balance structure and a battery formation fixture, aiming to solve the problem that when laminating products with inconsistent thickness, the pressing plate will be tilted, resulting in uneven force on the pressed objects.

[0006] To achieve the above-mentioned purpose, the push-balancing structure provided by the embodiment of the present invention comprises two groups of balancing components symmetrically connected at both ends of the same group of laminate assemblies, the balancing components comprising two connecting members, a guide seat and a guide rod; the guide seat is arranged at the end of the middle layer board of the laminate assembly, the guide seat is provided with a guide hole, and the guide rod slides through the guide hole; the connecting member is provided with a first connecting part and a second connecting part; the second connecting part is provided with a connecting hole; the connecting holes of the two connecting members overlap, and the first connecting pin passes through the connecting holes of the two connecting members and is connected to the guide rod; the first connecting parts of the two connecting members are respectively pivotally connected to the ends of the other two layer boards of the same group of laminate assemblies; one layer board in the laminate assembly is pushed, and each of the connecting members in the balancing components on both sides of the laminate assembly pushes the corresponding guide rod to slide along the guide hole, and the guide rod pushes the other connecting member, so that the two connecting members rotate around the first connecting pin to compress the distance between adjacent layer boards in the laminate assembly.

[0007] Furthermore, the balancing assembly also includes a connecting sleeve, the connecting sleeve passes through the two overlapping connecting holes, the first connecting pin passes through the connecting sleeve and is connected to the guide rod, the connecting hole and the connecting sleeve are clearance-matched, and a gasket is provided on the connecting sleeve to isolate the two connecting parts.

[0008] Furthermore, the two connecting members in the balancing assembly are each provided with an arc groove, the arc groove coincides with the center of the connecting hole, and the second connecting pin passes through the arc grooves of the two connecting members to be connected to the guide rod.

[0009] Furthermore, when the second connecting pin limits the ends of the two arc-shaped grooves, the pivots of the two first connecting parts and the center of the second connecting pin are on the same horizontal line.

[0010] Furthermore, the arc angle of the arc groove is 35°-55°.

[0011] The above one or more technical solutions in the push-balancing structure provided by the embodiment of the present invention have at least the following technical effects: the balancing components at both ends of the same group of laminate assemblies push a layer of laminate in the laminate assembly, and each of the connecting parts in the balancing components on both sides of the laminate assembly pushes the corresponding guide rod to slide along the guide hole, and the guide rod pushes the other connecting part, so that the two connecting parts rotate around the first connecting pin, compressing the distance between adjacent laminates in the laminate assembly; thereby, when the laminates press the product, under the action of the two balancing components, the adjacent laminates can move in conjunction, avoiding the problem of the laminates tilting due to the inconsistent thickness of the pressed object when the laminates move along the supporting guide rods; ensuring that the pressed products are subjected to uniform force, and effectively reducing the problem of laminate wear.

[0012] A battery formation fixture includes the pushing and balancing structure, and also includes two support seats, two groups of guide support assemblies, layer plates, a pushing mechanism and a power mechanism; the two support seats are arranged opposite to each other, and the two groups of guide support assemblies are arranged opposite to each other between the two support seats, the pushing mechanism and multiple layer plates are slidably connected to the two guide support assemblies, and the power mechanism is arranged on one of the support seats and connected to the pushing mechanism; every three adjacent layer plates form a group of laminate assembly, and the layer plate at the tail end of the laminate assembly is the layer plate at the front end of the next laminate assembly, and the two ends of each laminate assembly are connected to the balancing assembly; the layer plate in the middle of the laminate assembly is connected to the guide seat; the first connecting parts of the two connecting members are respectively pivotally connected to the ends of the other two layer plates in the same group of laminate assemblies.

[0013] Furthermore, the same group of the laminate assembly is provided with two groups of the push-balancing structures; the two groups of the balancing components of one group of the push-balancing structures are symmetrically arranged at the upper end of the end of the laminate assembly, and the two groups of the balancing components of the other group of the push-balancing structures are symmetrically arranged at the lower end of the end of the laminate assembly.

[0014] Furthermore, the guide rod slidably passes through the guide seats of the two balancing assemblies located on the same side.

[0015] Furthermore, the connecting member at the rear end of the balancing component and the first connecting portion of the connecting member at the front end of the adjacent balancing component overlap with each other and are pivotally connected to the corresponding layer plate.

[0016] Furthermore, the guide support assembly includes two first support guide shafts which are arranged in parallel up and down and pass through the layer plate, and two second support guide shafts which are arranged in parallel up and down and pass through the pushing mechanism.

[0017] Furthermore, the layer plate is provided with a guide through hole for the corresponding first support guide shaft to pass through, and a plurality of rolling support members tangent to the surface of the first support guide shaft are provided in the guide through hole; when the layer plate moves along the first support guide shaft, the rolling support member rolls along the first support guide shaft.

[0018] Furthermore, the side surface of the layer plate is also provided with an inwardly recessed cavity along the outer edge of each of the guide through holes, and the bottom wall of the cavity is also provided with an inwardly recessed air avoidance gap along the edge of the guide through hole, and positioning grooves are provided at both ends of the air avoidance gap; the rolling support member includes a support shaft and a rolling bearing, the rolling bearing is sleeved on the support shaft, the two ends of the support shaft are positioned in the corresponding positioning grooves, and one side of the rolling bearing extends into the guide through hole; a cover plate is also provided in the cavity for pressing the support shaft in the positioning groove, and the cover plate is screwed to the layer plate; the bottom of the cover plate is provided with an air avoidance position corresponding to the rolling bearing.

[0019] The above one or more technical solutions in the battery formation fixture provided by the embodiment of the present invention have at least the following technical effects:

[0020] 1. A battery is arranged between adjacent layer plates. When clamping the battery, the power mechanism pushes the pushing mechanism, and the pushing mechanism pushes the layer plates to press the battery. During the pressing process, the connecting piece close to the pushing mechanism in the two sets of balancing components connected to the layer plate assembly pushes the guide rod, so that the guide rod slides downward along the guide hole, and the connecting piece rotates around the first connecting pin to compress the gap between adjacent layer plates. At the same time, under the push of the power mechanism, the guide rod is pushed, so that the layer plates move along the guide support assembly in a direction away from the power mechanism, and at the same time, a connecting piece rotates around the first connecting pin. During rotation, another connecting member rotates synchronously around the first connecting pin, thereby enabling adjacent layer plates to be linked together. Even if the thickness of the pressed batteries is different, the adjacent layer plates will not be tilted, thereby achieving synchronous movement along the guide support assembly, and under the action of the corresponding balancing assembly, each layer plate can move smoothly, thereby avoiding the problem of uneven force on the battery caused by the layer plates tilting due to the different thickness of the batteries during the process of pressing the batteries, thereby ensuring the quality of battery formation, and avoiding the problem of increased wear on the layer plates and the guide support assembly due to the layer plates tilting when moving along the guide support assembly.

[0021] 2. After the formation is completed, the power mechanism pulls the pushing mechanism to move along the guide support assembly, so that when the layer plate releases the battery, the two connecting parts in each group of balance assemblies rotate around the first connecting pin and unfold, so that the layer plate can be fully opened, thereby facilitating the removal of the formed battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A stereoscopic view of a push-balance structure provided in an embodiment of the present invention disposed on a laminate assembly.

[0024] Figure 2 A front view of a push-balance structure provided in an embodiment of the present invention disposed on a laminate assembly.

[0025] Figure 3 A three-dimensional diagram of a push-balance structure provided in an embodiment of the present invention.

[0026] Figure 4 An exploded diagram of a push-balance structure provided in an embodiment of the present invention.

[0027] Figure 5 A three-dimensional diagram of a battery formation fixture provided in an embodiment of the present invention.

[0028] Figure 6 A three-dimensional diagram of the balancing assembly of the battery formation fixture provided by an embodiment of the present invention connected to the layer plate.

[0029] Figure 7 A three-dimensional diagram of the layer plate of the battery formation fixture provided in an embodiment of the present invention.

[0030] Figure 8 A partial exploded view of the layer plate of the battery formation fixture provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] In one embodiment of the present invention, Figure 1-4As shown, a push-balance structure includes two groups of balancing assemblies 100 symmetrically connected to the two ends of the same group of laminate assemblies, and the balancing assemblies 100 include two connecting pieces 110, a guide seat 120 and a guide rod 130. The guide seat 120 is arranged at the end of the middle layer of the laminate assembly, and a guide hole 121 is provided on the guide seat 120, and the guide rod 130 slides through the guide hole 121. The connecting member 110 is provided with a first connecting portion 111 and a second connecting portion 112; a connecting hole 113 is provided on the second connecting portion 112; the connecting holes 113 of the two connecting members 110 overlap, and the first connecting pin 114 passes through the connecting holes 113 of the two connecting members 110 and is connected to the guide rod 130; the first connecting portions 111 of the two connecting members 110 are respectively pivoted to the ends of the other two layer boards in the same group of laminate assemblies; one layer of the laminate assembly is pushed, and each of the connecting members 110 in the balancing assembly 100 on both sides of the laminate assembly pushes the corresponding guide rod 130 to slide along the guide hole, and the guide rod 130 pushes the other connecting member 110, so that the two connecting members 110 rotate around the first connecting pin 114, compressing the distance between adjacent layer boards in the laminate assembly. In this embodiment, since the balancing components 100 at both ends of the same group of laminate assemblies push a layer of the laminate assembly to move, each of the connecting members 110 in the balancing components on both sides of the laminate assembly simultaneously pushes the corresponding guide rod 130 to slide along the guide hole 121, and the guide rod 130 pushes the other connecting member 110, so that the two connecting members 110 rotate around the first connecting pin 114, and the distance between adjacent laminates in the laminate assembly is compressed; thereby, when the laminates press the product, under the action of the two balancing components 100, the adjacent laminates are moved in conjunction, and the problem of the laminates being tilted due to the different thickness of the pressed objects when the laminates move along the supporting guide rods is avoided; thereby, it is ensured that the pressed products are subjected to uniform force, and the problem of laminate wear can be effectively reduced. Furthermore, multiple groups of laminate assemblies can be connected in series through multiple groups of push-balancing structures in this embodiment. Therefore, multiple groups of products can be laminated at one time, and during the lamination process, the layers of the laminate assembly can be prevented from tilting during movement, thereby ensuring the stability of the layer operation and making the multiple groups of laminated products balanced in force.

[0036] Further, refer to Figure 4The balancing assembly 100 further includes a connecting sleeve 140, the connecting sleeve 140 passes through the two overlapping connecting holes 113, the first connecting pin 114 passes through the connecting sleeve 140 and is connected to the guide rod 130, the connecting hole 113 and the connecting sleeve 140 are clearance-matched, and a gasket 141 is sleeved on the connecting sleeve 140 to isolate the two connecting members 110. In this embodiment, the connecting member 110 and the connecting sleeve 140 rotate, thereby reducing the wear of the connecting member 110, and the gasket 141 is arranged between the two connecting members 110, thereby avoiding the contact between the two connecting members 110, preventing the two connecting members 110 from rubbing against each other when rotating, and thereby making the two connecting members 110 rotate around the connecting sleeve 140 more smoothly.

[0037] Further, refer to Figure 3 and Figure 4 , the two connecting members 110 in the balancing assembly 100 are also provided with an arc groove 115, the arc groove 115 coincides with the center of the connecting hole 113, and the second connecting pin 116 passes through the arc grooves 115 of the two connecting members 110 and is connected to the guide rod 130. In this embodiment, when the layer plate is pressed, the arc groove 115 on the connecting member 110 close to the driving force direction pushes the second connecting pin 116, so that the guide rod 130 slides downward along the guide hole 121, and then the two connecting members 110 rotate around the first connecting pin 114, so that the layer plates can be pressed against each other and the products set therebetween. And the arc groove 115 can make the two connecting members 110 realize linkage, and the arc groove 115 can limit the two connecting members 110, so that when the layer plate connected thereto moves to a certain distance, the layer plate can be prevented from moving again, so as to protect the first connecting pin 114.

[0038] Further, refer to Figure 1 and Figure 3 When the second connecting pin 116 limits the ends of the two arc-shaped grooves 115, the pivots of the two first connecting parts 111 and the centers of the second connecting pin 116 are on the same horizontal line. In this embodiment, when the laminate assembly releases the pressed product, the arc-shaped grooves 115 limit the two connecting members 110 to avoid the problem of the laminate assembly being compressed back during the opening process.

[0039] Further, refer to Figure 3 and Figure 4 , the arc angle of the arc groove 115 is 35°-55°. In this embodiment, when the laminate assembly presses the product, the arc groove 115 and the second connecting pin 116 are limited, and there is a certain limit gap in the lamination of the laminate assembly, which avoids the problem of the laminate assembly exploding the pressed product.

[0040] A battery formation fixture, please refer to Figure 1-Figure 6, which includes the push-balance structure, and also includes two support seats 200, two groups of guide support assemblies 300, a layer plate 400, a push mechanism 500 and a power mechanism (as shown in the attached figure); the two support seats 200 are arranged oppositely, the two groups of guide support assemblies 300 are arranged oppositely between the two support seats 200, and the push mechanism 500 and the plurality of layer plates 400 are slidably connected to the two guide support assemblies 300. The power mechanism is arranged on one of the support seats 200 and connected to the push mechanism 500. Every three adjacent layers 400 form a group of laminate assemblies, and the layer 400 at the tail end of the laminate assembly is the layer 400 at the front end of the next laminate assembly, and the two ends of each laminate assembly are connected to the balancing assembly 100; the layer 400 in the middle of the laminate assembly is connected to the guide seat 120; the first connecting parts 111 of the two connecting members 110 are respectively pivotally connected to the ends of the other two layers 400 in the same group of laminate assemblies. In this embodiment, a battery is arranged between adjacent layer plates 400. When clamping the battery, the power mechanism pushes the pushing mechanism 500, and the pushing mechanism 500 pushes the connecting member of the pushing mechanism to push the guide rod, so that the guide rod slides downward along the guide hole, so that the connecting plate presses the battery; in the process of pressing, the connecting member 110 close to the pushing mechanism 500 in the two groups of balancing components 100 connected to the laminate assembly rotates around the first connecting pin 114 to compress the gap between adjacent layer plates 400, and at the same time, under the push of the power mechanism, the guide rod 130 is pushed, so that the layer plate 400 moves along the guide support assembly 300 in the direction away from the power mechanism, and at the same time, a connecting member 110 rotates around the first When the connecting pin 114 rotates, the other connecting member 110 rotates synchronously around the first connecting pin 114, thereby enabling the adjacent layer plates 400 to be linked. Even if the thickness of the pressed batteries is different, the adjacent layer plates 400 will not be tilted, thereby achieving synchronous movement along the guide support assembly 300, and under the action of the corresponding balancing assembly 100, each layer plate 400 can move smoothly, thereby avoiding the problem of the layer plate 400 tilting due to the different thickness of the battery during the process of pressing the battery, resulting in uneven force on the battery, thereby ensuring the quality of battery formation, and avoiding the problem of the layer plate 400 tilting when moving along the guide support assembly 300 and increasing the wear of the layer plate 400 and the guide support assembly 300. After the formation is completed, the pushing mechanism 500 is pulled by the power mechanism to move along the guide support assembly 300, so that when the layer plate 400 releases the battery, the two connecting members 110 in each group of the balancing assembly 100 rotate around the first connecting pin 114 and unfold, so that the layer plate 400 can be fully and equidistantly opened, thereby facilitating the removal of the formed battery.

[0041] Further, refer to Figure 5 and Figure 6, the same group of the laminate assembly is provided with two groups of the push-balance structures. Specifically, the two groups of the balance components 100 of one group of the push-balance structures are symmetrically arranged at the upper end of the laminate assembly, and the two groups of the balance components 100 of the other group of the push-balance structures are symmetrically arranged at the lower end of the laminate assembly. In this embodiment, by arranging the balance components 100 at the upper and lower ends of the laminate assembly, the stability of the operation of the laminate 400 is increased.

[0042] Further, refer to Figure 5 and Figure 6 The guide rod 130 slides through the guide seats 120 of the two balancing assemblies 100 located on the same side. In this embodiment, the two balancing assemblies 100 share the same guide rod 130, so that the two groups of balancing assemblies 100 at the upper and lower ends can be linked to avoid the problem of the upper and lower tilting of the layer board 400 due to the unbalanced force caused by the high height and heavy weight of the layer board 400.

[0043] Further, refer to Figure 6 The connecting member 110 at the rear end of the balancing assembly 100 overlaps with the first connecting portion 111 of the connecting member 110 at the front end of the adjacent balancing assembly 100, and is pivotally connected to the corresponding layer plate 400. In this embodiment, each group of adjacent balancing assemblies 100 is connected in series, so that the overall structure is simple and the manufacturing cost is low; and when each layer plate 400 is pushed to press or release the battery, the layer plate 400 is smoothly pushed and pulled by the balancing assembly 100, so that the layer plate 400 can slide stably and smoothly along the guide support assembly.

[0044] Further, refer to Figure 5 and Figure 6 The guide support assembly 300 includes two first support guide shafts 310 arranged in parallel and passing through the layer plate 400, and two second support guide shafts 320 arranged in parallel and passing through the pushing mechanism 500. In this embodiment, the pushing mechanism 500 is driven by the power mechanism to slide along the second support guide shafts 320, thereby pushing the layer plate 400 to slide along the first support guide shafts 310, thereby pressing and releasing the battery.

[0045] Further, refer to Figure 7 and Figure 8, the layer plate 400 is provided with a guide hole 401 for the corresponding first support guide shaft 310 to pass through, and a plurality of rolling support members 410 tangent to the surface of the first support guide shaft 310 are provided in the guide hole 401. When the layer plate 400 moves along the first support guide shaft 310, the rolling support member 410 rolls along the first support guide shaft 310. In this embodiment, since the rolling support member 410 is connected to the first support guide shaft 310 passing through the guide hole 401 by rolling, the original sliding contact is replaced by rolling contact, which reduces the friction force, thereby reducing the wear of the layer plate 400 and the first support guide shaft 310; and reduces the driving force of the driving layer plate to press the battery, thereby reducing energy consumption. During the formation process, when the adjacent layer plates 400 press the battery, due to the reduction of friction, the pressure detected by the pressure sensor is close to the pressure on the battery, so during the battery formation process, the pressure of the battery formation can be well controlled to improve the quality of the battery formation.

[0046] Further, refer to Figure 8 The side of the layer plate 400 is also provided with an inwardly recessed cavity 402 along the outer edge of each of the guide through holes 401, and the bottom wall of the cavity 402 is also provided with an inwardly recessed air-avoiding gap 403 along the edge of the guide through hole 401, and both ends of the air-avoiding gap 403 are provided with positioning grooves 404. The rolling support 410 includes a support shaft 411 and a rolling bearing 412, and the rolling bearing 412 is sleeved on the support shaft 411, and both ends of the support shaft 411 are positioned in the corresponding positioning grooves 404, and one side of the rolling bearing 412 extends into the guide through hole 401; a cover plate 413 is also provided in the cavity, which is used to press the support shaft 411 in the positioning groove 404, and the cover plate 413 is screwed to the layer plate 400; the bottom of the cover plate 413 is provided with an air-avoiding position corresponding to the rolling bearing 412. In this embodiment, the rolling bearing 412 is sleeved on the support shaft 411, the support shaft 411 is positioned in the positioning groove 404, and the support shaft 411 is pressed and fixed in the positioning groove 404 by the cover plate 413. In this way, one side of the rolling bearing 412 extends into the guide through hole 401, so when the first support guide shaft 310 passes through the guide through hole 401, the rolling bearing 412 contacts the first support guide shaft 310, thereby realizing the rolling support of the layer plate 400 on the first support guide shaft 310. In addition, the rolling bearing 412 and the support shaft 411 can be replaced in this structure.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A push-balance structure, comprising two groups of balancing components symmetrically connected at both ends of the same group of laminate components, characterized in that: The balancing assembly includes two connecting members, a guide seat and a guide rod; the guide seat is arranged at the end of the middle layer board of the laminate assembly, and the guide seat is provided with a guide hole, and the guide rod slides through the guide hole; the connecting member is provided with a first connecting part and a second connecting part; the second connecting part is provided with a connecting hole; the connecting holes of the two connecting members overlap, and the first connecting pin passes through the connecting holes of the two connecting members and is connected to the guide rod; the first connecting parts of the two connecting members are respectively pivoted to the ends of the other two layer boards in the same group of laminate assembly; one layer board in the laminate assembly is pushed, and each of the connecting members in the balancing assembly on both sides of the laminate assembly pushes the corresponding guide rod to slide along the guide hole, and the guide rod pushes the other connecting member, so that the two connecting members rotate around the first connecting pin, thereby compressing the distance between adjacent layer boards in the laminate assembly.

2. The push-balance structure according to claim 1, characterized in that: The balancing assembly also includes a connecting sleeve, which passes through the two overlapping connecting holes, the first connecting pin passes through the connecting sleeve and is connected to the guide rod, the connecting hole and the connecting sleeve are clearance-matched, and a gasket is provided on the connecting sleeve to isolate the two connecting parts.

3. The push-balance structure according to claim 1, characterized in that: The two connecting members in the balancing assembly are both provided with an arc groove, the arc groove coincides with the center of the connecting hole, and the second connecting pin passes through the arc grooves of the two connecting members and is connected to the guide rod.

4. The push-balance structure according to claim 3, characterized in that: When the second connecting pin limits the ends of the two arc-shaped grooves, the pivots of the two first connecting parts and the center of the second connecting pin are on the same horizontal line.

5. The push-balance structure according to claim 4, characterized in that: The arc angle of the arc groove is 35°-55°.

6. A battery formation fixture, characterized in that: It includes the pushing balancing structure described in any one of claims 1 to 5, and also includes two support seats, two groups of guide support assemblies, layer plates, a pushing mechanism and a power mechanism; the two support seats are arranged opposite to each other, and the two groups of guide support assemblies are arranged opposite to each other between the two support seats, the pushing mechanism and multiple layer plates are slidably connected to the two guide support assemblies, and the power mechanism is arranged on one of the support seats and connected to the pushing mechanism; every three adjacent layer plates form a group of laminate assembly, and the layer plate at the tail end of the laminate assembly is the layer plate at the front end of the next laminate assembly, and the two ends of each laminate assembly are connected to the balancing assembly; the layer plate in the middle of the laminate assembly is connected to the guide seat; the first connecting parts of the two connecting members are respectively pivotally connected to the ends of the other two layer plates in the same group of laminate assemblies.

7. The battery formation fixture according to claim 6, characterized in that: The same group of the laminate assembly is provided with two groups of the push-balancing structures; the two groups of the balancing components of one group of the push-balancing structures are symmetrically arranged at the upper end of the laminate assembly, and the two groups of the balancing components of the other group of the push-balancing structures are symmetrically arranged at the lower end of the laminate assembly.

8. The battery formation fixture according to claim 7, characterized in that: The guide rod slidably passes through the guide seats of the two balancing assemblies located on the same side.

9. The battery formation fixture according to claim 6, characterized in that: The connecting member at the rear end of the balancing component and the first connecting portion of the connecting member at the front end of the adjacent balancing component overlap with each other and are pivotally connected to the corresponding layer plate.

10. The battery formation fixture according to claim 6, characterized in that: The guide support assembly includes two first support guide shafts which are arranged in parallel up and down and pass through the layer plate, and two second support guide shafts which are arranged in parallel up and down and pass through the pushing mechanism.

11. The battery formation fixture according to claim 10, characterized in that: The layer plate is provided with a guide through hole for the corresponding first support guide shaft to pass through, and a plurality of rolling support members tangent to the surface of the first support guide shaft are provided in the guide through hole; when the layer plate moves along the first support guide shaft, the rolling support member rolls along the first support guide shaft.

12. The battery formation fixture according to claim 11, characterized in that: The side surface of the layer plate is also provided with an inwardly recessed cavity along the outer edge of each of the guide through holes, and the bottom wall of the cavity is also provided with an inwardly recessed air avoidance gap along the edge of the guide through hole, and positioning grooves are provided at both ends of the air avoidance gap; the rolling support member includes a support shaft and a rolling bearing, the rolling bearing is sleeved on the support shaft, the two ends of the support shaft are positioned in the corresponding positioning grooves, and one side of the rolling bearing extends into the guide through hole; a cover plate is also provided in the cavity for pressing the support shaft in the positioning groove, and the cover plate is connected to the layer plate screws; the bottom of the cover plate is provided with an air avoidance position corresponding to the rolling bearing.

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