Battery sealing mold

Abstract

The utility model provides a battery sealing mold, which relates to the technical field of battery mold equipment and comprises a lower sealing mold, a middle sealing mold and a plurality of upper sealing molds. The sealing middle die is connected with the sealing lower die; any sealing upper die can be combined with or separated from one end, far away from the sealing lower die, of the sealing middle die, when any sealing upper die is combined with the sealing middle die, the sealing upper die, the sealing middle die and the sealing lower die can jointly define a containing cavity, and an anti-skid part is arranged at one end, far away from the sealing upper die, of the containing cavity. The sealing shapes of the upper sealing dies are different, the batteries are sealed through the upper sealing dies respectively, the shapes of the sealing positions of the batteries are gradually formed, the situation that the batteries slip or deviate when the upper sealing dies are closed can be reduced through the anti-skid parts, the batteries in the containing cavity are fixed and limited, and the sealing effect of the batteries is improved. And the deformation defect of battery sealing is reduced, and the accuracy of battery sealing is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery mold equipment, and more specifically, to a battery sealing mold. Background Art

[0002] A battery sealing mold is a key mold used to seal the top of a battery case during the battery manufacturing process to ensure that the internal chemical substances of the battery do not leak. Due to a certain gap between the battery and the battery sealing mold, there may be slippage or offset of the battery during the processing of the battery by the battery sealing mold, resulting in local appearance deformation defects of the battery, which affects the sealing quality of the battery. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a battery sealing mold, which is used for processing and sealing a battery. The anti-slip part can reduce the situation of battery slippage or offset when the upper sealing die is closed, and ensure the accuracy of the battery during sealing.

[0004] The first aspect of the utility model provides a battery sealing mold, which includes a lower sealing die, a middle sealing die, and a plurality of upper sealing dies.

[0005] Lower sealing die;

[0006] Middle sealing die, which is connected to the lower sealing die;

[0007] A plurality of upper sealing dies, any one of the upper sealing dies can be closed or separated from one end of the middle sealing die away from the lower sealing die. When any one of the upper sealing dies is closed with the middle sealing die, the upper sealing die, the middle sealing die, and the lower sealing die can jointly define a receiving cavity, and an anti-slip part is arranged at one end of the receiving cavity away from the upper sealing die.

[0008] In a possible embodiment of the utility model, the lower sealing die is provided with a first groove, the middle sealing die is provided with a second through groove, and the upper sealing die is provided with a third groove. The first groove, the second through groove, and the third groove jointly form the receiving cavity.

[0009] In a possible embodiment of the utility model, the plurality of upper sealing dies include a first upper sealing die, a second upper sealing die, and a third upper sealing die.

[0010] In a possible embodiment of the utility model, the third grooves of the first upper sealing die, the second upper sealing die, and the third upper sealing die are all different.

[0011] In a possible embodiment of the utility model, the center lines of the first groove, the second through groove, and the third groove are collinear.

[0012] In a possible embodiment of the present utility model, the anti-slip portion is provided at the bottom of the first groove.

[0013] In a possible embodiment of the present utility model, the anti-slip portion is a concavo-convex structure.

[0014] In a possible embodiment of the present utility model, the lower die of the seal also has a fourth groove, the fourth groove is provided at the bottom of the first groove, and the anti-slip portion is arranged around the fourth groove.

[0015] In a possible embodiment of the present utility model, the center line of the fourth groove is collinear with the center line of the first groove.

[0016] In a possible embodiment of the present utility model, the accommodating cavity is a cylindrical structure or a cubic structure.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: A battery sealing die provided by the present utility model is used for processing and sealing a battery. The upper sealing die, the middle sealing die and the lower sealing die define an accommodating cavity. The sealing shapes of multiple upper sealing dies are all different. By using multiple upper sealing dies to seal the battery respectively, the shape of the sealing position of the battery is gradually formed. The accommodating cavity is used to place the battery to be sealed. Since there will be a certain gap between the side wall of the accommodating cavity and the battery, the anti-slip portion can reduce the situation of battery slipping or offset when the upper sealing die is closed, fix and limit the battery in the accommodating cavity, reduce the deformation defect that occurs during battery sealing, and ensure the accuracy when the battery is sealed. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of the battery sealing die provided in some embodiments of the present utility model;

[0020] Figure 2 Structural schematic diagram of the lower die of the seal of the battery sealing die provided in some embodiments of the present utility model;

[0021] Figure 3 Structural schematic diagram of the anti-slip portion of the battery sealing die provided in some embodiments of the present utility model.

[0022] Description of main component symbols;

[0023] 100 - Battery sealing die; 110 - Lower sealing die; 111 - Anti - slip part; 112 - First groove; 113 - Fourth groove; 120 - Middle sealing die; 121 - Second through - groove; 130 - Upper sealing die; 131 - First upper sealing die; 132 - Second upper sealing die; 133 - Third upper sealing die; 134 - Third groove; 140 - Accommodating cavity; 200 - Battery. Specific implementation manners

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0026] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed when in use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The following will describe in detail some embodiments of the present utility model with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0031] Embodiment 1

[0032] Referring to Figure 1 As shown, an embodiment of the present application provides a battery sealing mold 100, which includes a lower sealing mold 110, a middle sealing mold 120, and a plurality of upper sealing molds 130.

[0033] Specifically, referring to Figure 1 and Figure 2 As shown, the middle sealing mold 120 is connected to the lower sealing mold 110; any one of the upper sealing molds 130 can be mated or separated from one end of the middle sealing mold 120 away from the lower sealing mold 110. When any one of the upper sealing molds 130 is mated with the middle sealing mold 120, the upper sealing mold 130, the middle sealing mold 120, and the lower sealing mold 110 can jointly define a receiving cavity 140. An anti-slip portion 111 is provided at one end of the receiving cavity 140 away from the upper sealing mold 130. The upper sealing mold 130, the middle sealing mold 120, and the lower sealing mold 110 define the receiving cavity 140. The sealing shapes of the plurality of upper sealing molds 130 are all different. By respectively sealing the battery 200 with the plurality of upper sealing molds 130, the shape of the sealing position of the battery 200 is gradually formed. The battery 200 to be sealed is placed in the receiving cavity 140. Since there will be a certain gap between the side wall of the receiving cavity 140 and the battery 200, the anti-slip portion 111 can reduce the situation of slipping or offset of the battery 200 when the upper sealing mold 130 is mated, fix and limit the battery 200 in the receiving cavity 140, and reduce the deformation defect that occurs during the sealing of the battery 200.

[0034] It can be understood that battery crimping sealing is a process in battery production where a crimping process is used through a mold to seal the battery case cover to ensure the sealing of the battery and prevent electrolyte leakage.

[0035] It should be noted that referring toFigure 1 and Figure 2 As shown in Figure 2 , the battery sealing die 100 has a first direction. Exemplarily, the first direction is taken as the length direction of the battery sealing die 100. It can be understood that the above definition is only for facilitating the understanding of the relative position relationship of each part in the battery sealing die 100, and should not be construed as a limitation to this application.

[0036] In one embodiment, optionally, as Figure 1 shown, the lower sealing die 110 is provided with a first groove 112, the middle sealing die 120 is provided with a second through groove 121, and the upper sealing die 130 is provided with a third groove 134. The first groove 112, the second through groove 121 and the third groove 134 together form the accommodating cavity 140. Correspondingly, the first groove 112 of the lower sealing die 110 is arranged corresponding to the second through groove 121 of the middle sealing die 120, and the second through groove 121 of the middle sealing die 120 is arranged corresponding to the third groove 134 of the upper sealing die 130. The upper sealing die 130 is a movable die, so that the upper sealing die 130 can displace relative to the middle sealing die 120 and the lower sealing die 110 to complete the stamping of the battery 200. The battery 200 to be sealed is placed in the accommodating cavity 140 for processing, and the battery 200 is fixed and limited to facilitate stamping and forming of the battery 200 during mold closing.

[0037] Optionally, the multiple upper sealing dies 130 include a first upper sealing die 131, a second upper sealing die 132 and a third upper sealing die 133. Since different types of upper sealing dies 130 are required to perform multiple processing stampings on the battery 200 during the process of curling and sealing the battery 200, and multiple processing stampings are a production process for sealing the battery 200, the sealing position of the battery 200 will gradually change.

[0038] In one embodiment, optionally, in combination with Figure 2 and Figure 3 shown, the anti-slip portion 111 is arranged at the bottom of the first groove 112. Since there is a certain gap between the battery 200 and the accommodating cavity 140, the battery 200 may slip or shift in the horizontal direction. The anti-slip portion 111 plays an anti-slip role on the battery 200, increasing the friction between the battery 200 and the bottom of the first groove 112 of the lower sealing die 110, preventing the battery 200 to be processed from slipping during the stamping of the upper sealing die 130, and reducing the influence on the processing quality of the curling and sealing of the battery 200.

[0039] In summary, the battery sealing die 100 is used for processing and sealing the battery 200. The upper sealing die 130, the middle sealing die 120, and the lower sealing die 110 define a receiving cavity 140. The sealing shapes of the multiple upper sealing dies 130 are all different. By using the multiple upper sealing dies 130 to seal the battery 200 respectively, the shape of the sealing position of the battery 200 is gradually formed. The battery 200 to be sealed is placed in the receiving cavity 140. Since there is a certain gap between the side wall of the receiving cavity 140 and the battery 200, the anti-slip portion 111 can reduce the situation of slipping or offsetting of the battery 200 when the upper sealing die 130 is closed, fix and limit the battery 200 in the receiving cavity 140, reduce the deformation defects occurring during the sealing of the battery 200, and ensure the accuracy when the battery 200 is sealed.

[0040] Embodiment 2

[0041] Reference Figures 1 to 3 As shown, an embodiment of the present application provides another battery sealing die 100. The battery sealing die 100 includes a lower sealing die 110, a middle sealing die 120, and multiple upper sealing dies 130.

[0042] Specifically, with reference to Figure 1 and Figure 2 shown, the middle sealing die 120 is connected to the lower sealing die 110; any one of the upper sealing dies 130 can be closed or separated from one end of the middle sealing die 120 away from the lower sealing die 110. By using the multiple upper sealing dies 130 to seal the battery 200 respectively, the shape of the sealing position of the battery 200 is gradually formed.

[0043] In this embodiment, when any one of the upper sealing dies 130 is closed with the middle sealing die 120, the upper sealing die 130, the middle sealing die 120, and the lower sealing die 110 can jointly define a receiving cavity 140. An anti-slip portion 111 is provided at one end of the receiving cavity 140 away from the upper sealing die 130. The upper sealing die 130, the middle sealing die 120, and the lower sealing die 110 define the receiving cavity 140. The sealing shapes of the multiple upper sealing dies 130 are all different. The battery 200 to be sealed is placed in the receiving cavity 140. Since there is a certain gap between the side wall of the receiving cavity 140 and the battery 200, the anti-slip portion 111 can reduce the situation of slipping or offsetting of the battery 200 when the upper sealing die 130 is closed, fix and limit the battery 200 in the receiving cavity 140, and reduce the deformation defects occurring during the sealing of the battery 200.

[0044] It should be noted that, with reference to Figure 1 and Figure 2 shown, the battery sealing die 100 has a first direction. Exemplarily, the first direction is taken as the length direction of the battery sealing die 100.

[0045] In one embodiment, optionally, as Figure 1 shown, the lower sealing die 110 is provided with a first groove 112, the middle sealing die 120 is provided with a second through groove 121, and the upper sealing die 130 is provided with a third groove 134. The first groove 112, the second through groove 121, and the third groove 134 together form the accommodation cavity 140. Correspondingly, the first groove 112 of the lower sealing die 110 is arranged corresponding to the second through groove 121 of the middle sealing die 120, the second through groove 121 of the middle sealing die 120 is arranged corresponding to the third groove 134 of the upper sealing die 130. The upper sealing die 130 is a movable die, so that the upper sealing die 130 can displace relative to the middle sealing die 120 and the lower sealing die 110 to complete the stamping of the battery 200. The battery 200 to be sealed is placed in the accommodation cavity 140 for processing.

[0046] Optionally, the multiple upper sealing dies 130 include a first upper sealing die 131, a second upper sealing die 132, and a third upper sealing die 133. Since different types of upper sealing dies 130 are required to perform multiple processing stampings on the battery 200 during the process of curling and sealing the battery 200, and multiple processing stampings are a production process for sealing the battery 200, the sealing position of the battery 200 will gradually change. Exemplarily, the lower sealing die 110, the middle sealing die 120, and any one of the upper sealing dies 130 are arranged in sequence along the first direction.

[0047] Further, as Figure 1 shown, the third grooves 134 of the first upper sealing die 131, the second upper sealing die 132, and the third upper sealing die 133 are all different. Different upper sealing dies 130 with different shapes of the third groove 134 can be selected according to different situations, so that the sealing position of the battery 200 reaches a shape that meets the standard and improves the sealing performance of the sealing position of the battery 200.

[0048] Optionally, referring to Figure 1 and Figure 2 shown, the center lines of the first groove 112, the second through groove 121, and the third groove 134 are collinear, that is, the center lines of the first groove 112, the second through groove 121, and the third groove 134 are parallel to each other and on the same line, so as to ensure that the shape of the accommodation cavity 140 formed by the first groove 112, the second through groove 121, and the third groove 134 can match the shape of the battery 200 to be processed. Exemplarily, the upper sealing die 130 moves towards the middle sealing die 120, and the moving direction of the upper sealing die 130 is parallel to the center lines of the first groove 112, the second through groove 121, and the third groove 134 respectively.

[0049] In one embodiment, optionally, in combination with Figure 2 and Figure 3 As shown, the anti-slip portion 111 is disposed at the bottom of the first groove 112. Since there is a certain gap between the battery 200 and the receiving cavity 140, the battery 200 may slip or shift in the horizontal direction. The anti-slip portion 111 plays an anti-slip role for the battery 200, increasing the friction between the battery 200 and the bottom of the first groove 112 of the lower sealing die 110, preventing the battery 200 to be processed from slipping during the stamping process of the upper sealing die 130, and reducing the influence on the processing quality of the crimping and sealing of the battery 200. Further, the anti-slip portion 111 is an uneven structure, and the uneven structure is to enhance the friction on the surface of the anti-slip portion 111, which can provide friction in different directions and reduce the occurrence of sliding. Exemplarily, the uneven structure can be one of a grid-like structure, a wavy line structure, and a dot-like structure.

[0050] In one embodiment, optionally, the lower sealing die 110 further defines a fourth groove 113. The fourth groove 113 is disposed at the bottom of the first groove 112, and the anti-slip portion 111 is disposed around the fourth groove 113. The fourth groove 113 is used to place the pole of the battery 200. The size specification of the fourth groove 113 is larger than the size specification of the pole of the battery 200. The fourth groove 113 realizes insulation setting for the pole of the battery 200. The anti-slip portion 111 anti-slips and positions the battery 200, so as to facilitate processing and sealing after pre-charging the battery 200.

[0051] Optionally, the center line of the fourth groove 113 is collinear with the center line of the first groove 112, that is, the fourth groove 113 is located at the center position of the first groove 112. Exemplarily, the fourth groove 113 is a cylindrical structure.

[0052] In one embodiment, optionally, the receiving cavity 140 is a cylindrical structure or a cubic structure. The receiving cavity 140 is used to place the battery 200. The shape structure of the receiving cavity 140 can be selected according to the shape of the circular battery 200 or the square battery 200, and no specific limitation is made here.

[0053] In all the examples shown and described here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0054] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. A battery sealing mold, characterized in that, Comprising: Lower sealing die; Middle sealing die, the middle sealing die is connected to the lower sealing die; Multiple upper sealing dies, any one of the upper sealing dies can be clamped or separated from one end of the middle sealing die away from the lower sealing die. When any one of the upper sealing dies is clamped with the middle sealing die, the upper sealing die, the middle sealing die and the lower sealing die can jointly define a receiving cavity, and an anti-slip portion is provided at one end of the receiving cavity away from the upper sealing die.

2. The battery sealing die according to claim 1, wherein, The lower sealing die is provided with a first groove, the middle sealing die is provided with a second through groove, and the upper sealing die is provided with a third groove. The first groove, the second through groove and the third groove jointly form the receiving cavity.

3. The battery sealing mold according to claim 2, characterized in that, The multiple upper sealing dies include a first upper sealing die, a second upper sealing die and a third upper sealing die.

4. The battery sealing die according to claim 3, wherein The third grooves of the first upper sealing die, the second upper sealing die and the third upper sealing die are all different.

5. The battery sealing mold according to claim 2, characterized in that, The center lines of the first groove, the second through groove and the third groove are collinear.

6. The battery sealing mold according to claim 2, characterized in that, The anti-slip portion is provided at the bottom of the first groove.

7. The battery sealing die according to claim 6, wherein, The anti-slip portion is an uneven structure.

8. The battery sealing mold according to claim 6, characterized in that, The lower sealing die is further provided with a fourth groove, the fourth groove is provided at the bottom of the first groove, and the anti-slip portion is disposed around the fourth groove.

9. The battery sealing die according to claim 8, characterized in that, The center line of the fourth groove is collinear with the center line of the first groove.

10. The battery sealing die according to any one of claims 1 to 9, characterized in that, The receiving cavity is a cylindrical structure or a cubic structure.

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