Viscose guide structure and battery

Abstract

The utility model relates to the field of battery structures, in particular to an adhesive diversion structure and a battery. The adhesive flow guide structure comprises a plurality of adhesive blocking convex blocks; the multiple glue blocking protruding blocks are arranged on the inner wall of the shell, and a glue containing runner is arranged between any two adjacent glue blocking protruding blocks. The plurality of glue blocking convex blocks form a plurality of convex rows, and the plurality of convex rows are arranged at intervals along a first direction; the first direction is the direction in which the battery cell enters the shell; the glue blocking protruding blocks of the adjacent protruding rows are arranged in a staggered mode. According to the adhesive flow guide structure, the structural adhesive can be blocked and shunted, so that the structural adhesive is uniformly distributed at all positions on the side wall, and the structural adhesive is prevented from being accumulated at the bottom of the shell. And the enough bonding area and filling thickness between the battery cell and the side wall can be ensured, so that the connection between the battery cell and the shell is reliable.

Description

Technical Field

[0001] The present application relates to the field of battery structures, and in particular to a viscose flow-guiding structure and a battery. Background Art

[0002] When assembling CTP structures or other module structures that rely on structural adhesive for fixation, it is necessary to ensure both the application area and the application thickness of the structural adhesive, so as to ensure that the structural adhesive effectively fills the gap between the battery cell and the structural parts to form a reliable connection structure.

[0003] In actual engineering applications, in order to improve the integrity of the structure and reduce the use of connectors, the battery cells are directly installed in a U-shaped shell or a box-shaped shell to form a module. In this case, glue is required on the side wall of the shell to fix the battery cells, thereby ensuring structural strength and heat dissipation performance. If the side wall of the shell is a planar structure, when the battery cells are slid and pushed, the structural glue will be pushed to the bottom of the shell by the battery cells and accumulated, resulting in insufficient actual adhesive (including insufficient adhesive layer thickness to fill the gap, insufficient bonding area, etc.), affecting structural strength, heat dissipation performance and overall stability. Utility Model Content

[0004] The purpose of the present application is to provide a viscose flow guide structure and a battery, which can block and divert the structural adhesive so that the structural adhesive is evenly distributed on the side wall of the shell and avoid the accumulation of the structural adhesive at the bottom of the shell.

[0005] The present application provides a glue guide structure, including a plurality of glue blocking protrusions;

[0006] A plurality of the glue blocking protrusions are arranged on the inner wall of the housing, and a glue flow channel is arranged between any two adjacent glue blocking protrusions;

[0007] The plurality of glue blocking protrusions form a plurality of protrusion rows, and the plurality of protrusion rows are arranged at intervals along a first direction; the first direction is a direction in which the battery cell enters the shell; the glue blocking protrusions of adjacent protrusion rows are arranged in a staggered manner.

[0008] In the above technical solution, further, between two adjacent protrusion rows, the glue blocking protrusions of one of the protrusion rows are opposite to the glue containing channels of the other protrusion row.

[0009] In the above technical solution, further, it also includes a diversion component;

[0010] Between two adjacent protrusion rows, the protrusion row facing away from the first direction is a first protrusion row, and the other protrusion row is a second protrusion row; a confluence area is provided between the glue-containing flow channel formed by the first protrusion row and the corresponding glue-blocking protrusions of the second protrusion row;

[0011] The confluence area is provided with the diversion component, and the diversion component is used to divert and guide the viscose.

[0012] In the above technical solution, further, the diversion component includes at least one rubber stopper;

[0013] The plurality of glue blocking protrusions arranged around the confluence area form a plurality of glue containing channels connected to the confluence area, wherein at least one of the glue containing channels is provided with the glue blocking member.

[0014] In the above technical solution, further, the length direction of the glue blocking member is the direction in which the glue containing channel where the glue blocking member is located guides the glue.

[0015] In the above technical solution, further, the rubber blocking member is an elastic body, and the height difference between the rubber blocking member and the inner wall of the shell is greater than the height difference between the rubber blocking protrusion and the inner wall of the shell.

[0016] In the above technical solution, further, the plurality of glue-blocking protrusions of the protrusion row are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

[0017] In the above technical solution, further, the plurality of the rubber blocking protrusions of the protrusion row are evenly arranged; and the plurality of the protrusion rows are evenly arranged.

[0018] In the above technical solution, further, the rubber-blocking protrusion is a regular hexagonal protrusion formed by stamping the shell, and the length direction of a diagonal line of the regular hexagonal protrusion is the first direction.

[0019] The present application also provides a battery, comprising the viscose flow guide structure described in the above solution.

[0020] Compared with the prior art, the beneficial effects of this application are:

[0021] The adhesive flow guide structure provided by the present application can block and divert the structural adhesive so that the structural adhesive is evenly distributed at various positions on the side wall, avoiding the accumulation of the structural adhesive at the bottom of the shell. It can also ensure that there is sufficient bonding area and filling thickness between the battery cell and the side wall, so that the connection between the battery cell and the shell is reliable.

[0022] The present application also provides a battery, including the viscose flow guide structure described in the above solution. Based on the above analysis, it can be seen that the battery also has the above beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the assembly structure of the housing and the battery cell provided in this application;

[0025] Figure 2 A first structural schematic diagram of the viscose flow guide structure provided in the present application;

[0026] Figure 3 This is a second structural schematic diagram of the viscose guide structure provided in the present application.

[0027] In the figure: 101-shell; 102-battery cell; 103-glue blocking protrusion; 104-glue flow channel; 105-socket; 106-shunt component; 107-confluence area; 108-glue blocking member. DETAILED DESCRIPTION

[0028] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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 ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] The viscose flow guide structure provided in the present application can be arranged on the side wall of the U-shaped shell or the box-shaped shell, see Figures 1 to 3 As shown, the viscose guide structure shown in the figure is arranged on the side wall of the U-shaped shell.

[0033] Specifically, the adhesive guide structure includes a plurality of adhesive blocking protrusions 103; the plurality of adhesive blocking protrusions 103 are arranged on the inner wall of the shell 101, and an adhesive flow channel 104 is arranged between any two adjacent adhesive blocking protrusions 103; the plurality of adhesive blocking protrusions 103 form a plurality of protrusion rows, and the plurality of protrusion rows are arranged at intervals along a first direction; the first direction is the direction in which the battery cell 102 enters the shell 101; the adhesive blocking protrusions 103 of adjacent protrusion rows are staggered.

[0034] Specifically, before assembling the battery cell 102 with the shell 101, glue is first applied on the side walls on both sides of the shell 101 by a glue machine. The glue application position is located at the socket 105 of the shell 101, and the thickness of the glue is relatively thick. In the process of sliding the battery cell 102 from the socket 105 above the shell 101 into the shell 101, since the multiple glue blocking protrusions 103 on the side wall are in close contact with the battery cell 102, the gaps between the multiple glue blocking protrusions 103 form a glue flow channel 104. In the process of the battery cell 102 continuing to move downward, the battery cell 102 will push the structural glue that is higher than the glue blocking protrusions 103, so that the structural glue flows downward along the glue flow channel 104, thereby filling the glue flow channel 104 of the entire side wall. In other words, the glue flow channel 104 leaves a movement channel for the structural glue, so that the excess structural glue flows to the area with a thinner glue application thickness, so that the thickness of the structural glue at each position on the side wall is evenly distributed. Filling the adhesive flow channel 104 with structural adhesive can ensure that there is sufficient bonding area and filling thickness between the battery cell 102 and the side wall, so that the connection between the battery cell 102 and the housing 101 is reliable.

[0035] Furthermore, since the multiple glue blocking protrusions 103 of adjacent protrusion rows are arranged in a staggered manner, the glue flow channels 104 are also arranged in a staggered manner, which can avoid the problem of glue areas being gathered on the same vertical line and causing local over-dense glue application and no glue in other locations, so that the distribution of the structural glue on the entire side wall is more uniform. And as the battery cell 102 gradually moves downward, the glue blocking protrusions 103 in the lower row can prevent the excessive structural glue in the upper row from flowing downward, so that a part of the structural glue can remain on the upper part of the side wall, thereby preventing too much structural glue from being pushed to the bottom of the shell 101 and accumulating.

[0036] In an optional solution of this embodiment, between two adjacent protrusion rows, the glue blocking protrusions 103 of one protrusion row are opposite to the glue containing flow channels 104 of the other protrusion row. Figure 3As shown, in order from top to bottom, the first layer of the protrusion row is provided with four glue blocking protrusions 103, and the four glue blocking protrusions 103 form three glue containing channels 104, and the second layer of the protrusion row is provided with three glue blocking protrusions 103, and the three glue blocking protrusions 103 are respectively opposite to the three glue containing channels 104 of the upper layer. In the process of the battery cell 102 moving downward to push the structural glue, the glue blocking protrusions 103 of the lower layer can play a role in blocking and diverting the structural glue, so that a part of the structural glue is retained in the upper part of the side wall, and a part of the structural glue is diverted to various positions of the lower part of the side wall, so that the distribution of the structural glue is more uniform.

[0037] In an optional solution of this embodiment, the multiple glue blocking protrusions 103 of the protrusion row are arranged at intervals along the second direction, and the second direction is perpendicular to the first direction. Optionally, the multiple glue blocking protrusions 103 of the protrusion row are arranged evenly; multiple protrusion rows are arranged evenly.

[0038] In this embodiment, if Figure 3 As shown, a plurality of adhesive blocking protrusions 103 of a layer of protrusion rows are arranged at intervals in the horizontal direction, and the spacing between the plurality of adhesive blocking protrusions 103 is equal. Further, a plurality of protrusion rows are arranged at intervals in the vertical direction, and the distances between two adjacent layers of protrusion rows are equal. In the process of the battery cell 102 moving downward to push the structural adhesive, the structural adhesive accumulated at the socket 105 can be evenly pushed to each adhesive flow channel 104 to make the structural adhesive evenly distributed.

[0039] It should be noted that the number of the glue blocking protrusions 103 in a protrusion row needs to be determined according to the width of the side wall. Figure 3 The first layer of protrusion row is provided with four glue blocking protrusions 103. Due to space limitation, the protruding area of ​​the glue blocking protrusions 103 at both ends is half of the protruding area of ​​the middle glue blocking protrusion 103. The number of protrusion rows needs to be determined according to the height of the side wall.

[0040] In an optional solution of this embodiment, the rubber blocking protrusion 103 is a regular hexagonal protrusion formed by stamping the housing 101, and the length direction of a diagonal line of the regular hexagonal protrusion is the first direction.

[0041] In this embodiment, the adhesive stopper 103 is a boss structure formed by stamping the side wall of the housing 101. The adhesive stopper 103 is an integral structure of the housing 101 to improve the structural integrity. Compared with the planar structure of the side wall, the boss formed by stamping reduces the gap between the side wall of the housing 101 and the battery cell 102, which can ensure that the thickness of the structural adhesive is sufficient to tightly bond the battery cell 102.

[0042] The shape of the adhesive blocking protrusion 103 is not limited to the regular hexagon shown in the figure, and the shape of the adhesive blocking protrusion 103 can also be other shapes. However, compared with the adhesive blocking protrusion 103 of other shapes, the regular hexagonal adhesive blocking protrusion 103 has a relatively better guiding effect on the structural adhesive. Figures 1 to 3 As shown, any three adjacent rubber-blocking protrusions 103 form a three-way intersection-shaped confluence area 107, and each confluence area 107 is connected, thereby forming a "four-way" flow channel structure. Each branch flow channel of the confluence area 107 is formed by the relative parallel edges of two adjacent rubber-blocking protrusions 103, and the width of the branch flow channel is constant, which has a better guiding effect on the structural adhesive. If the rubber-blocking protrusion 103 is set to be circular, the branch flow channel is formed by relative arc edges, and the width of the branch flow channel is thin in the middle and wide at both ends, which is easy to cause the problem of poor flow of the structural adhesive.

[0043] Embodiment 2

[0044] The viscose guide structure in the second embodiment is an improvement on the above embodiment, and the technical contents disclosed in the above embodiment will not be described repeatedly, and the contents disclosed in the above embodiment also belong to the contents disclosed in the second embodiment.

[0045] In an optional solution of this embodiment, the adhesive flow guiding structure further includes a flow diversion component 106. Between two adjacent protrusion rows, the protrusion row facing away from the first direction is the first protrusion row, and the other protrusion row is the second protrusion row; a confluence area 107 is provided between the adhesive flow channel 104 formed by the first protrusion row and the corresponding adhesive blocking protrusion 103 of the second protrusion row; the confluence area 107 is provided with a flow diversion component 106, and the flow diversion component 106 is used to divert and guide the adhesive.

[0046] In this embodiment, during the downward movement of the battery cell 102, even if there is a glue blocking protrusion 103 to block the structural glue from moving downward, due to the large downward force exerted by the battery cell 102 on the structural glue, some of the structural glue will flow downward from the gap between the glue blocking protrusion 103 and the battery cell 102 under the thrust, which can easily cause the problem of uneven distribution of the structural glue. The present application further provides a shunt component 106 in the confluence area 107 to shunt and guide the structural glue, so that the structural glue can flow to the glue containing flow channels 104 on both sides of the lower glue blocking protrusion 103, so that the structural glue is evenly distributed and the distribution thickness is equal.

[0047] In an optional solution of this embodiment, the diversion component 106 includes at least one glue blocking member 108, and a plurality of glue blocking protrusions 103 arranged around the confluence area 107 form a plurality of glue containing channels 104 connected to the confluence area 107, wherein at least one glue containing channel 104 is provided with a glue blocking member 108.

[0048] In this embodiment, if Figure 3As shown, the flow dividing component 106 in the figure includes three glue blocking members 108; the three glue blocking members 108 are star-shaped connection structures; three glue blocking protrusions 103 arranged around the confluence area 107 form three glue containing flow channels 104, and the three glue blocking members 108 are respectively located in the three glue containing flow channels 104. Optionally, the glue blocking member 108 is in a long strip shape, and the length direction of the glue blocking member 108 is the direction in which the glue containing flow channel 104 where the glue blocking member 108 is located guides the glue.

[0049] Furthermore, the three adhesive flow channels 104 connected to the confluence area 107 are branch flow channels, and the three adhesive blocking members 108 of the flow diversion assembly 106 are respectively located in the three branch flow channels of the confluence area 107, which can enhance the diversion effect on the structural adhesive, so that the structural adhesive of the upper layer is evenly dispersed to the adhesive flow channels 104 on both sides of the lower layer under the action of thrust. It can also ensure that enough structural adhesive is stably retained in each adhesive flow channel 104, avoiding the accumulation of structural adhesive at the bottom of the shell 101.

[0050] Optionally, the multiple rubber blocking members 108 may be arranged in a proximal connection and a distal divergent arrangement as shown in the figure, or the proximal ends of the multiple rubber blocking members 108 may be arranged in a gap arrangement. And among the multiple branch flow channels connected to the confluence area 107, the rubber blocking member 108 may be provided in only one or two branch flow channels.

[0051] It should be noted that for Figure 3 In the second layer of the raised row, since there is a large gap between the glue blocking protrusions 103 at both ends and the side wall edge, a diverter component 106 is also provided there. However, the diverter component 106 is only provided with two glue blocking parts 108 according to the space characteristics to block and divert the structural glue at this position.

[0052] In the optional scheme of this embodiment, the rubber stopper 108 is a compressible elastic body, specifically, the rubber stopper 108 is a flexible rubber stopper strip made of foam or rubber material. The height difference between the rubber stopper 108 and the inner wall of the shell 101 is greater than the height difference between the rubber stopper protrusion 103 and the inner wall of the shell 101, that is, the height of the rubber stopper strip is slightly higher than the height of the stamped rubber stopper protrusion 103, forming a high-low matching rubber control flow channel structure. The slightly higher rubber stopper 108 forms an interference fit with the battery cell 102, which allows the structural glue to be enriched around the rubber stopper 108, ensuring that the thickness of the structural glue can be in close contact with the battery cell 102 to form an effective bond.

[0053] Embodiment 3

[0054] Embodiment 3 of the present application provides a battery, including the viscose flow guide structure of any of the above embodiments, and thus has all the beneficial technical effects of the viscose flow guide structure of any of the above embodiments, which will not be elaborated here.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In addition, a person skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present application and forming different embodiments.

Claims

1. A viscose flow guide structure, characterized in that: including a plurality of rubber stopper bumps; A plurality of the glue blocking protrusions are arranged on the inner wall of the housing, and a glue flow channel is arranged between any two adjacent glue blocking protrusions; The plurality of glue blocking protrusions form a plurality of protrusion rows, and the plurality of protrusion rows are arranged at intervals along a first direction; the first direction is a direction in which the battery cell enters the shell; the glue blocking protrusions of adjacent protrusion rows are arranged in a staggered manner.

2. The viscose flow guide structure according to claim 1, characterized in that: Between two adjacent protrusion rows, the glue blocking protrusions of one protrusion row are opposite to the glue containing flow channels of the other protrusion row.

3. The viscose flow guide structure according to claim 2, characterized in that: Also included is a flow diversion assembly; Between two adjacent protrusion rows, the protrusion row facing away from the first direction is a first protrusion row, and the other protrusion row is a second protrusion row; a confluence area is provided between the glue-containing flow channel formed by the first protrusion row and the corresponding glue-blocking protrusions of the second protrusion row; The confluence area is provided with the diversion component, and the diversion component is used to divert and guide the viscose.

4. The viscose flow guide structure according to claim 3, characterized in that: The flow diversion component includes at least one rubber stopper; The plurality of glue blocking protrusions arranged around the confluence area form a plurality of glue containing channels connected to the confluence area, wherein at least one of the glue containing channels is provided with the glue blocking member.

5. The viscose flow guide structure according to claim 4, characterized in that: The length direction of the glue blocking member is the direction in which the glue containing channel where the glue blocking member is located guides the glue.

6. The viscose flow guide structure according to claim 5, characterized in that: The rubber-blocking component is an elastic body, and the height difference between the rubber-blocking component and the inner wall of the shell is greater than the height difference between the rubber-blocking protrusion and the inner wall of the shell.

7. The viscose flow guide structure according to claim 1, characterized in that: The plurality of glue-blocking protrusions of the protrusion row are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

8. The viscose flow guide structure according to claim 7, characterized in that: The plurality of glue blocking protrusions of the protrusion row are evenly arranged; and the plurality of protrusion rows are evenly arranged.

9. The viscose flow guide structure according to claim 1, characterized in that: The rubber-blocking protrusion is a regular hexagonal protrusion formed by stamping the shell, and the length direction of a diagonal line of the regular hexagonal protrusion is the first direction.

10. A battery, characterized in that: It comprises the viscose flow guiding structure as claimed in any one of claims 1 to 9.

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