Battery injection mold

Abstract

The utility model provides a battery injection mold. The battery injection mold comprises an upper mold plate and a lower mold plate, the upper mold plate is arranged above the lower mold plate in a covering manner, a glue injection cavity and a glue injection groove are jointly defined by the upper mold plate and the lower mold plate, the glue injection cavity comprises a PCB cavity and a battery cell cavity which are communicated with each other, and a groove opening of the glue injection groove is communicated with the PCB cavity; the drainage piece is movably arranged in the glue injection cavity in the vertical direction and has a drainage position and an avoiding position, when the drainage piece is located at the drainage position, the first end of the drainage piece extends to the notch of the glue injection groove, the second end of the drainage piece extends to the side, away from the battery cell cavity, of the PCB cavity, and when the drainage piece is located at the avoiding position, the second end of the drainage piece extends to the notch of the glue injection groove. And the drainage piece avoids the notch of the glue injection groove. Through the technical scheme provided by the invention, the problem that the battery cell is easy to deform when the PCB and the battery cell are packaged in the related technology can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a battery injection mold. Background Art

[0002] Consumer electronic products, such as mobile phones or laptops, are equipped with lithium batteries to power them. Among them, lithium-ion batteries need to be packaged by low-pressure battery injection molds to package the PCB board and the battery cell tabs together.

[0003] In the related art, during the glue injection process, since the glue injection port is arranged opposite to the battery cell and the glue injection port is arranged at an angle, the impact force of the glue directly acts on the battery cell. Under the action of the impact force, the battery cell as a whole will move in the direction away from the PCB board, thereby squeezing the bottom of the battery cell and causing it to deform. Utility Model Content

[0004] The utility model provides a battery injection mold to solve the problem in the related art that when a PCB board and a battery core are packaged, the battery core is easily deformed.

[0005] The utility model provides a battery injection mold, which comprises: an upper mold plate; a lower mold plate, wherein the upper mold plate cover is arranged above the lower mold plate, the upper mold plate and the lower mold plate jointly enclose a glue injection cavity and a glue injection groove, the glue injection cavity comprises a PCB board cavity and a battery cell cavity which are connected, and the notch of the glue injection groove is connected with the PCB board cavity; a drainage piece is movably arranged in the glue injection cavity along the vertical direction, the drainage piece has a drainage position and an avoidance position, when the drainage piece is located at the drainage position, the first end of the drainage piece extends to the notch of the glue injection groove, the second end of the drainage piece extends to a side of the PCB board cavity away from the battery cell cavity, and when the drainage piece is located at the avoidance position, the drainage piece avoids the notch of the glue injection groove.

[0006] Furthermore, the notch of the glue injection groove is located on the side of the PCB board cavity, and the drainage piece is located on the side of the notch of the glue injection groove facing the battery cell cavity.

[0007] Furthermore, the guide member is an arc-shaped plate arranged in the vertical direction, and the notch of the glue injection groove is arranged corresponding to the outer arc surface of the arc-shaped plate.

[0008] Furthermore, a guide groove is arranged at the notch of the glue injection groove, the guide groove is arranged vertically, and the guide member is movably inserted in the guide groove.

[0009] Furthermore, when the guide member is located at the avoidance position, the lower surface of the guide member fits with the bottom surface of the glue injection cavity, and the upper surface of the guide member is located below the glue injection groove.

[0010] Furthermore, the battery injection mold also includes a driving motor, which is drivingly connected to the drainage member so that the driving motor moves between the drainage position and the avoidance position.

[0011] Furthermore, the battery injection mold also includes a retractable telescopic part, the upper template has a receiving hole, the receiving hole passes through the lower surface of the upper template, the telescopic part is arranged in the receiving hole, and the telescopic part can drive the drainage part to move from the drainage position to the avoidance position.

[0012] Furthermore, the upper template has a first groove, the lower template has a second groove corresponding to the first groove, and the first groove and the second groove together form a glue injection cavity; the upper template has a first drainage groove, the first drainage groove is connected to the first groove, the lower template has a second drainage groove corresponding to the first drainage groove, the second drainage groove is connected to the second groove, and the first drainage groove and the second drainage groove together form a glue injection groove.

[0013] Furthermore, a PCB board supporting protrusion is arranged in the PCB board cavity.

[0014] Furthermore, the battery injection mold has two injection cavities, which are spaced apart along the length direction of the battery injection mold. The injection groove is located between the two injection cavities. The injection groove has two notches, and the two notches of the injection groove are respectively connected to the corresponding injection cavities.

[0015] By applying the technical solution of the utility model, the battery injection mold includes an upper template, a lower template and a drain piece. When in use, the drain piece is first placed in the drainage position. Since the first end of the drain piece extends to the notch of the glue injection groove, and the second end of the drain piece extends to the side of the PCB board cavity away from the battery cell cavity, the drain piece can be used to guide the glue material, thereby preventing the glue material from directly impacting the battery cell, thereby preventing the battery cell from moving. After the glue injection is completed on one side of the drain piece draining the glue material, the drain piece is moved vertically from the drainage position to the avoidance position at the notch of the glue injection groove. At this time, the battery cell and the PCB board can be fixed by the part that has been injected with glue, and the glue can fill the side that is not filled with glue material to seal the PCB board and the battery cell. By adopting the above scheme, the drain piece can be used to prevent the glue material from directly impacting the battery cell. At the same time, the injected glue can be used to fix the battery cell, thereby preventing the battery cell from moving and the battery cell will not be deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram showing a flow guide member of a battery injection mold provided according to an embodiment of the utility model located at a flow guide position;

[0018] Figure 2A structural schematic diagram showing a flow guide member of a battery injection mold provided according to an embodiment of the utility model being located in an avoidance position.

[0019] The above drawings include the following reference numerals:

[0020] 1. PCB board; 2. Battery cell;

[0021] 10. lower template; 11. glue injection cavity; 12. glue injection groove; 13. second groove; 14. second drainage groove;

[0022] 20. Drainage piece. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a battery injection mold, which includes an upper mold plate, a lower mold plate 10, and a guide member 20. The upper mold plate cover is arranged above the lower mold plate 10, and the upper mold plate and the lower mold plate 10 jointly enclose a glue injection cavity 11 and a glue injection groove 12. The glue injection cavity 11 includes a PCB board cavity and a battery cell cavity that are connected, and the notch of the glue injection groove 12 is connected to the PCB board cavity; the guide member 20 is vertically movably arranged in the glue injection cavity 11, and the guide member 20 has a drainage position and an avoidance position. When the guide member 20 is located at the drainage position, the first end of the guide member 20 extends to the notch of the glue injection groove 12, and the second end of the guide member 20 extends to a side of the PCB board cavity away from the battery cell cavity. When the guide member 20 is located at the avoidance position, the guide member 20 avoids the notch of the glue injection groove 12.

[0025] By applying the technical solution of the utility model, the battery injection mold includes an upper template, a lower template 10 and a guide piece 20. When in use, the guide piece 20 is first placed in the drainage position. Since the first end of the guide piece 20 extends to the notch of the glue injection groove 12, and the second end of the guide piece 20 extends to the side of the PCB board cavity away from the battery cell cavity, the guide piece 20 can be used to guide the glue to avoid the glue directly impacting the battery cell, thereby preventing the battery cell 2 from moving. After the glue is injected on one side of the guide piece 20 to drain the glue, the guide piece 20 is moved vertically from the drainage position to the avoidance position at the notch of the glue injection groove 12. At this time, the battery cell 2 and the PCB board 1 can be fixed by the part that has been injected with glue, and the glue can fill the side that is not filled with glue to seal the PCB board 1 and the battery cell 2. By adopting the above solution, the drainage member 20 can be used to prevent the rubber from directly impacting the battery cell 2. At the same time, the injected rubber is used to fix the battery cell 2, thereby preventing the battery cell from moving and preventing the battery cell 2 from deforming.

[0026] In this embodiment, the extension direction of the second end of the guide member 20 is arranged parallel to the side wall of the PCB board 1, thereby preventing the rubber from impacting the battery cell 2. At the same time, the rubber will flow along the second end of the PCB board 1, and then the rubber will flow parallel to the PCB board 1, thereby not impacting the battery cell 2 and the PCB board 1.

[0027] The notch of the glue injection groove 12 can be located on the side of the PCB cavity away from the battery cell cavity, or can be arranged on the side of the PCB cavity, as long as the drainage member 20 can be used to guide the glue.

[0028] It should be noted that the guide member 20 is movable in the vertical direction, where the vertical direction refers to the direction from the upper template to the lower template 10 , or the direction from the lower template 10 to the upper template.

[0029] In this embodiment, the notch of the glue injection groove 12 is located at the side of the PCB board cavity, and the guide member 20 is located at the side of the notch of the glue injection groove 12 facing the battery cell cavity. With the above arrangement, the guide member 20 can guide the glue to prevent the glue from directly impacting the PCB board 1 and the battery cell 2.

[0030] like Figure 1 As shown, the guide member 20 is a vertically arranged arc plate, and the notch of the glue injection groove 12 is arranged corresponding to the outer arc surface of the arc plate. By setting the guide member 20 as an arc plate to guide the glue, it has the advantages of simple structure and easy arrangement.

[0031] The notch of the injection groove is provided with a guide groove, which is arranged vertically, and the guide member 20 is movably inserted in the guide groove. The guide groove can be used to guide the guide member 20, so as to facilitate the vertical movement of the guide member 20.

[0032] Specifically, when the guide member 20 is in the avoidance position, the lower surface of the guide member 20 fits the bottom surface of the glue injection cavity 11, and the upper surface of the guide member 20 is located below the glue injection groove 12. With the above arrangement, when the guide member 20 is in the avoidance position, the notch of the glue injection groove 12 can be fully avoided so as not to hinder the flow of the glue.

[0033] In the first embodiment of the present application, the battery injection mold further comprises a driving motor, which is connected to the drainage member 20 to move the driving motor between the drainage position and the avoidance position. The driving motor is used to drive the drainage member 20 to move, which has the advantages of simple structure and easy setting.

[0034] In the first embodiment, the guide member 20 is arranged on the lower template 10, and the driving motor can be arranged on the lower template 10. At this time, it is only necessary to guide the glue entering the glue injection cavity of the lower template 10.

[0035] Specifically, the driving motor can be a linear motor, which is connected to the guide member 20, and the guide member 20 is driven by the linear motor to move vertically in a straight line. In the initial state, the guide member 20 is located at the guide position to guide the rubber material. After the glue injection is completed on one side of the guide member 20 to guide the rubber material, the linear motor is used to drive the guide member 20 to move vertically from the guide position to the avoidance position.

[0036] In the second embodiment of the present application, the battery injection mold further includes a retractable telescopic member, the upper template has a receiving hole, the receiving hole passes through the lower surface of the upper template, the telescopic member is arranged in the receiving hole, and the telescopic member can drive the drainage member 20 to move from the drainage position to the avoidance position. The telescopic member is used to directly drive the drainage member 20 to move vertically, which has the advantages of simple structure and easy setting.

[0037] In the second embodiment, the telescopic member can be automatically telescoped to contact the flow guiding member 20, thereby moving the flow guiding member.

[0038] Specifically, the telescopic member can be an electric push rod, the push rod of the electric push rod is inserted into the receiving hole and connected to the guide member 20, thereby driving the guide member 20 to move. In the initial state, the guide member 20 is located at the drainage position to guide the rubber material. After the glue injection is completed on one side of the guide member 20 to drain the rubber material, the electric push rod is used to drive the guide member 20 to move to the avoidance position.

[0039] In other embodiments, when the notch of the glue injection groove 12 is located on the side of the PCB board 1 away from the battery cell 2, a drainage piece 20 can be set on both the upper template and the lower template 10. At the same time, a driving motor can be set on both the upper template and the lower template 10 and be driven and connected to the corresponding drainage piece 20.

[0040] like Figure 1As shown, the upper template has a first groove, and the lower template 10 has a second groove 13 corresponding to the first groove. The first groove and the second groove 13 together form a glue injection cavity 11. The glue injection cavity using the above structure has the advantages of simple structure and easy processing.

[0041] Specifically, the upper template has a first drainage groove, which is connected to the first groove, and the lower template 10 has a second drainage groove 14 corresponding to the first drainage groove, which is connected to the second groove 13, and the first drainage groove and the second drainage groove 14 together form a glue injection groove 12. The glue injection groove 12 with the above structure has the advantages of simple structure and easy processing.

[0042] Specifically, a PCB board supporting protrusion is arranged in the PCB board cavity. The PCB board can be supported by the PCB board supporting protrusion to create space for the flow of the rubber material, which is conducive to the flow of the rubber material.

[0043] like Figure 1 As shown, the battery injection mold has two injection cavities 11, the two injection cavities 11 are spaced apart along the length direction of the battery injection mold, and the injection groove 12 is located between the two injection cavities 11. The injection groove 12 has two notches, and the two notches of the injection groove 12 are respectively connected to the corresponding injection cavities 11. With the above structure, two groups of PCB boards 1 and battery cells 2 can be sealed simultaneously by using the two injection cavities 11 to improve work efficiency.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0046] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0047] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0048] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery injection mold, characterized in that: The battery injection mold comprises: Upper template; A lower template (10), wherein the upper template cover is arranged above the lower template (10), the upper template and the lower template (10) together enclose a glue injection cavity (11) and a glue injection groove (12), the glue injection cavity (11) comprises a PCB board cavity and a battery cell cavity which are connected, and the notch of the glue injection groove (12) is connected to the PCB board cavity; A flow guide (20) is movably arranged in the glue injection cavity (11) along the vertical direction, and the flow guide (20) has a flow guide position and an avoidance position. When the flow guide (20) is located at the flow guide position, the first end of the flow guide (20) extends to the notch of the glue injection groove (12), and the second end of the flow guide (20) extends to a side of the PCB board cavity away from the battery cell cavity. When the flow guide (20) is located at the avoidance position, the flow guide (20) avoids the notch of the glue injection groove (12).

2. The battery injection mold according to claim 1, characterized in that: The notch of the glue injection groove (12) is located on the side of the PCB board cavity, and the drainage member (20) is located on the side of the notch of the glue injection groove (12) facing the battery cell cavity.

3. The battery injection mold according to claim 2, characterized in that: The flow guide member (20) is a vertically arranged arc-shaped plate, and the notch of the glue injection groove (12) is arranged corresponding to the outer arc surface of the arc-shaped plate.

4. The battery injection mold according to claim 2, characterized in that: A guide groove is provided at the notch of the glue injection groove (12), the guide groove is arranged vertically, and the guide member (20) is movably inserted in the guide groove.

5. The battery injection mold according to claim 2, characterized in that: When the flow guide member (20) is located at the avoidance position, the lower surface of the flow guide member (20) fits the bottom surface of the glue injection cavity (11), and the upper surface of the flow guide member (20) is located below the glue injection groove (12).

6. The battery injection mold according to any one of claims 1 to 5, characterized in that: The battery injection mold further comprises a driving motor, which is drivingly connected to the drainage member (20) so as to enable the driving motor to move between the drainage position and the avoidance position.

7. The battery injection mold according to any one of claims 1 to 5, characterized in that: The battery injection mold also includes a retractable telescopic member, the upper template has a receiving hole, the receiving hole passes through the lower surface of the upper template, the telescopic member is arranged in the receiving hole, and the telescopic member can drive the drainage member (20) to move from the drainage position to the avoidance position.

8. The battery injection mold according to any one of claims 1 to 5, characterized in that: The upper mold plate has a first groove, and the lower mold plate (10) has a second groove (13) arranged corresponding to the first groove, and the first groove and the second groove (13) together enclose the glue injection cavity (11); The upper template has a first drainage groove, the first drainage groove is connected to the first groove, the lower template (10) has a second drainage groove (14) arranged corresponding to the first drainage groove, the second drainage groove (14) is connected to the second groove (13), and the first drainage groove and the second drainage groove (14) together form the glue injection groove (12).

9. The battery injection mold according to any one of claims 1 to 5, characterized in that: A PCB board supporting protrusion is arranged in the PCB board cavity.

10. The battery injection mold according to any one of claims 1 to 5, characterized in that: The battery injection mold has two injection cavities (11), the two injection cavities (11) are arranged at intervals along the length direction of the battery injection mold, the injection groove (12) is located between the two injection cavities (11), the injection groove (12) has two notches, and the two notches of the injection groove (12) are respectively connected to the corresponding injection cavities (11).

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