Lithium ion battery core package transferring and fixing mechanism device

Abstract

In the device, a connecting rod is rotatably connected with a base through a rolling bearing, the connecting rod is provided with a through hole, a front check block is transversely connected to the connecting rod and can make contact with a battery cell in a clutch mode, an upper guide column is connected with the connecting rod through the through hole, a pair of clamping springs are arranged at the two ends of the upper guide column respectively, and the two ends of a lower guide column penetrate out of the base. One end of the tension spring is connected with the clamping spring, and the other end of the tension spring is connected with the lower guide column. The device is not easy to break, pole piece dislocation caused by battery cell shaking is prevented, and the stability and the generation efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery core pack production, in particular to a lithium ion battery core pack transfer and fixing mechanism device. Background Art

[0002] Lithium-ion battery core packs are usually composed of positive electrode sheets, negative electrode sheets and separators. They are designed with different numbers of layers according to the different capacities used. There are usually two processes: stacking and winding. Wound cells generally do not have pole sheet misalignment during transportation, while stacked cells are prone to pole sheet misalignment during transportation. Therefore, there is a mechanism to fix the battery core pack on the tray transportation mechanism of stacked cells.

[0003] The stacked cell fixing block device currently used is prone to breakage, and the torsion spring used inside has a very short life. The torsion spring used in the existing mechanism is subject to mechanical strain after long-term opening and closing, and is generally replaced after three months of use. Broken spring debris may randomly fall into the core package, which is difficult to detect in time, and circulates to subsequent processes, resulting in increased rework and scrap. The lack of pressure when fixing the cell will cause the pole piece to be misaligned during the transportation process of the cell. It is necessary to increase the structural stability to avoid the occurrence of poor core package.

[0004] The above information disclosed in the background technology section is only used to enhance the understanding of the background of the present invention and therefore may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium-ion battery core pack transfer and fixing mechanism device, which can prevent the mechanism from breaking easily during the operation of the battery core tray, avoid the battery core from being unable to be pressed tightly, prevent the pole piece from being misaligned due to the shaking of the battery core, reduce safety hazards, improve the stability of the mechanism and production efficiency, and facilitate replacement and maintenance.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a lithium-ion battery core pack transfer and fixing mechanism device comprising:

[0008] Base,

[0009] A connecting rod is rotatably connected to the base via a rolling bearing, and the connecting rod is provided with a through hole.

[0010] A front stopper, which is laterally connected to the connecting rod and can contact the battery cell in a disengageable manner,

[0011] an upper guide column connected to the connecting rod via the through hole,

[0012] A pair of retaining springs are disposed at both ends of the upper guide column.

[0013] The lower guide column has two ends extending through the base, and the lower guide column is parallel to the upper guide column.

[0014] A pair of tension springs, one end of the tension spring is connected to the clip spring, and the other end is connected to the lower guide column.

[0015] In the lithium-ion battery core pack transfer and fixing mechanism device, the rolling bearing is pressed down by a downward pressure cylinder to actuate the connecting rod to rotate upward.

[0016] In the lithium-ion battery core pack transfer and fixing mechanism device, the connecting rod extends along the longitudinal center line of the base.

[0017] In the lithium-ion battery core pack transfer and fixing mechanism device, the front stopper is symmetrically distributed relative to the connecting rod and extends perpendicularly to the longitudinal center line.

[0018] In the lithium-ion battery core pack transfer and fixing mechanism device, the bottom of the front stopper has a fixing surface for fixing the battery core.

[0019] In the lithium-ion battery core pack transfer and fixing mechanism device, the fixing surface is a horizontal surface.

[0020] In the lithium-ion battery core pack transfer and fixing mechanism device, the upper guide pillar and the lower guide pillar are both kept in a horizontal state.

[0021] In the lithium-ion battery core pack transfer and fixing mechanism device, a pair of tension springs are symmetrically distributed relative to the connecting rod.

[0022] In the lithium-ion battery core pack transfer and fixing mechanism device, the distance between the upper guide pillar and the lower guide pillar is the same as the length of the tension spring in its natural state.

[0023] In the lithium-ion battery core pack transfer and fixing mechanism device, the lithium-ion battery core pack transfer and fixing mechanism device is a symmetrical structure.

[0024] In the above technical scheme, the utility model provides a lithium-ion battery core pack transfer and fixing mechanism device, which has the following beneficial effects: the utility model reduces safety hazards, makes the core pack more stable during transportation, and the core pack will not shake, avoiding the pole piece dislocation during the transportation of the battery cell in the tray, thereby avoiding the great safety risk of the dislocated pole piece during the production process. The device can operate stably and will not immediately cause the pole piece dislocation of the core pack in the event of a failure, and prevents broken parts from falling into the battery cell and causing the core pack to be scrapped. The spring of the device can ensure normal production for at least 6 months, greatly increasing the service life of the mechanism, improving the efficiency and safety of the battery cell production process, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic structural diagram of a lithium-ion battery core pack transfer and fixation mechanism device provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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.

[0031] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In 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 directly connected or indirectly connected 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 present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] See also Figure 1 As shown, in one embodiment, a lithium-ion battery core pack transfer and fixing mechanism device of the utility model includes:

[0036] Base 8,

[0037] The connecting rod 7 is rotatably connected to the base 8 via a rolling bearing 6, and the connecting rod 7 is provided with a through hole.

[0038] The front stopper 1 is laterally connected to the connecting rod 7 and can contact the battery cell in a disengageable manner.

[0039] The upper guide column 2 is connected to the connecting rod 7 via the through hole.

[0040] A pair of retaining springs 3 are provided at both ends of the upper guide column 2.

[0041] The lower guide column 5 has bases 8 at both ends thereof, and the lower guide column 5 is parallel to the upper guide column 2.

[0042] A pair of tension springs 4, one end of each tension spring 4 is connected to the clamping spring 3, and the other end is connected to the lower guide column 5.

[0043] In a preferred embodiment of the lithium-ion battery core pack transfer and fixing mechanism device, the rolling bearing 6 is pressed down by a pressing cylinder to actuate the connecting rod 7 to rotate upward.

[0044] In a preferred embodiment of the lithium-ion battery core pack transfer and fixation mechanism device, the connecting rod 7 extends along the longitudinal center line of the base 8 .

[0045] In a preferred embodiment of the lithium-ion battery core pack transfer and fixing mechanism device, the front stopper 1 is symmetrically distributed relative to the connecting rod 7 and extends perpendicularly to the longitudinal center line.

[0046] In a preferred embodiment of the lithium-ion battery core pack transfer and fixing mechanism device, the bottom of the front stopper 1 has a fixing surface for fixing the battery core.

[0047] In a preferred embodiment of the lithium-ion battery core pack transfer and fixation mechanism device, the fixing surface is a horizontal surface.

[0048] In a preferred embodiment of the lithium-ion battery core pack transfer and fixing mechanism device, the upper guide pillar 2 and the lower guide pillar 5 are both kept in a horizontal state.

[0049] In a preferred embodiment of the lithium-ion battery core pack transfer and fixation mechanism device, a pair of tension springs 4 are symmetrically distributed relative to the connecting rod 7 .

[0050] In a preferred embodiment of the lithium-ion battery core pack transfer and fixing mechanism device, the distance between the upper guide pillar 2 and the lower guide pillar 5 is the same as the length of the tension spring 4 in its natural state.

[0051] In a preferred embodiment of the lithium-ion battery core pack transfer and fixation mechanism device, the lithium-ion battery core pack transfer and fixation mechanism device is a symmetrical structure.

[0052] In one embodiment, the lower guide post 5 acts as a support point to drive the connecting rod 7 to move up and down, thereby driving the front block 1 to clamp the core package. The deformation force of the tension spring 4 during use is smaller than the deformation force of the torsion spring, which greatly improves the life of the tension spring 4. The guide posts are designed to be upper guide posts 2 and lower guide posts 5, and the tension springs 4 at both ends are fixed with clips 3, which increases the stability of the mechanism.

[0053] In one embodiment, the lithium-ion battery core pack transfer and fixing mechanism is fixed on the left and right sides of the battery tray to clamp the battery, fix the battery so that it does not shake up and down or left and right. When the battery tray enters the equipment machine to load the battery, the downward pressure cylinder inside the machine will press down on the roller bearing 6 to drive the connecting rod 7 to move upward, and the tension spring 4 is stretched due to the action of the upper guide column 2 and the lower guide column 5. After the battery is placed inside the tray, the downward pressure cylinder rises to release the pressure of the roller bearing 6, and the upper guide column 2 and the lower guide column 5 return to their original positions to release the tension of the tension spring 4. When the battery tray moves to the unloading place, it is blocked by the logistics line lifting cylinder, and at the same time, the downward pressure cylinder presses down on the roller bearing 6 to drive the connecting rod 7 to move upward, and the tension spring 4 is stretched due to the action of the upper guide column 2 and the lower guide column 5. After the unloading manipulator grabs the battery, the downward pressure cylinder rises to release the pressure of the roller bearing 6, and the upper guide column 2 and the lower guide column 5 return to their original positions to release the tension of the tension spring 4. The mechanism undergoes two actions in total during the loading and unloading of a battery cell, and the tension spring 4 is stretched twice and released twice. Due to the large production volume, the improved mechanism greatly improves the integrity of the battery tray.

[0054] Finally, it should be noted that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present application.

[0055] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lithium-ion battery core pack transfer and fixing mechanism device, characterized in that: These include, Base, A connecting rod is rotatably connected to the base via a rolling bearing, and the connecting rod is provided with a through hole. A front stopper, which is laterally connected to the connecting rod and can contact the battery cell in a disengageable manner, an upper guide column connected to the connecting rod via the through hole, A pair of retaining springs are disposed at both ends of the upper guide column. The lower guide column has two ends extending through the base, and the lower guide column is parallel to the upper guide column. A pair of tension springs, one end of the tension spring is connected to the clip spring, and the other end is connected to the lower guide column.

2. A lithium-ion battery core pack transfer and fixing mechanism device according to claim 1, characterized in that: The rolling bearing is pressed down by a pressing cylinder to actuate the connecting rod to rotate upward.

3. A lithium-ion battery core pack transfer and fixing mechanism device according to claim 1, characterized in that: The connecting rod extends along the longitudinal center line of the base.

4. A lithium-ion battery core pack transfer and fixing mechanism device according to claim 3, characterized in that: The front stopper is symmetrically distributed relative to the connecting rod and extends perpendicularly to the longitudinal center line.

5. The lithium-ion battery core pack transfer and fixing mechanism device according to claim 1, characterized in that: The bottom of the front stopper has a fixing surface for fixing the battery core.

6. A lithium-ion battery core pack transfer and fixing mechanism device according to claim 5, characterized in that: The fixing surface is a horizontal surface.

7. A lithium-ion battery core pack transfer and fixing mechanism device according to claim 1, characterized in that: The upper guide column and the lower guide column are both kept in a horizontal state.

8. The lithium-ion battery core pack transfer and fixing mechanism device according to claim 1, characterized in that: A pair of tension springs are symmetrically distributed relative to the connecting rod.

9. A lithium-ion battery core pack transfer and fixing mechanism device according to claim 1, characterized in that: The distance between the upper guide post and the lower guide post is the same as the length of the tension spring in a natural state.

10. A lithium-ion battery core pack transfer and fixing mechanism device according to claim 1, characterized in that: The lithium-ion battery core pack transfer and fixing mechanism device is a symmetrical structure.

Images