Composite adapter plate, battery and electric equipment

Abstract

The utility model provides a composite adapter plate, a battery and electric equipment, and relates to the technical field of battery manufacturing. The composite adapter plate comprises an adapter piece and a supporting block, wherein the adapter piece is used for being connected with a tab. The supporting block comprises a first subsection, a second subsection and a third subsection which are sequentially connected, and the first subsection and the third subsection are parallel and oppositely arranged. And the first section, the second section and the third section form a fixing groove for accommodating the adapter plate and the tab. The tab is clamped between the first section and the switching piece, and the third section is positioned on one side, far away from the tab, of the switching piece. The composite adapter plate can effectively fix the tab and prevent the tab from being inversely inserted into the roll core, so that the safety of the battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a composite adapter plate, a battery and an electrical device. Background Art

[0002] During the lithium battery production process, the tabs and adapters are generally connected through ultrasonic welding, and the core is assembled after welding. There is no restriction on the bending of the tabs during the assembly process, which may easily cause the tabs to be inserted into the core and cause short circuits, posing a safety hazard. Utility Model Content

[0003] The utility model aims to provide a composite adapter plate, a battery and an electrical device, which can fix the pole ear and prevent the pole ear from being reversely inserted into the winding core to cause a short circuit.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a composite adapter plate, comprising:

[0006] An adapter sheet, the adapter sheet is used to connect with the tab;

[0007] A support block, the support block comprises a first segment, a second segment and a third segment connected in sequence, the first segment and the third segment are parallel and arranged opposite to each other; the first segment, the second segment and the third segment form a fixing groove for accommodating the adapter and the tab;

[0008] The pole tab is sandwiched between the first segment and the adapter plate, and the third segment is located on a side of the adapter plate away from the pole tab.

[0009] In an optional embodiment, a side of the first segment close to the third segment and / or a side of the third segment close to the first segment is provided with a convex rib.

[0010] In an optional embodiment, the second segment abuts against one end of the adapter plate; the length of the end of the first segment away from the second segment exceeds the edge of the end of the adapter plate away from the second segment, and the excess portion is used to fix and support the pole ear.

[0011] In an optional embodiment, the end of the first segment away from the second segment is in an arc shape.

[0012] In an optional embodiment, the extension length of the third segment is smaller than the extension length of the first segment.

[0013] In an optional embodiment, a guiding slope is provided at one end of the third segment away from the second segment.

[0014] In an optional embodiment, the first segment and the third segment are formed with notches opposite to the second segment, and the notches are in the shape of bell mouths.

[0015] In an optional implementation, the support block is made of insulating material.

[0016] In a second aspect, the utility model provides a battery, comprising a winding core having a pole ear and a composite adapter plate as described in any one of the aforementioned embodiments, wherein the pole ear and the adapter plate are connected, and the pole ear and the adapter plate are located in a fixing groove of the support block.

[0017] In a third aspect, the utility model provides an electrical device, comprising the battery as described in the above embodiment.

[0018] The beneficial effects of the embodiments of the utility model include:

[0019] The composite adapter plate provided in the embodiment of the utility model adopts an adapter plate and a support block to jointly fix the pole ear, and the pole ear is clamped between the first segment of the support block and the adapter plate. This can effectively prevent the pole ear from being inserted into the winding core backwards and causing a short circuit, thereby improving the reliability and safety of the battery structure.

[0020] The battery and electrical equipment provided by the embodiment of the utility model include the above-mentioned composite adapter plate, which can effectively prevent the tab from being inserted into the winding core backwards to cause a short circuit, reduce safety hazards, and improve the reliability and safety of the battery structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of the composite adapter plate and the tab connection provided by the embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the structure of an adapter sheet of a composite adapter plate provided in an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a first perspective of a first structure of a support block of a composite adapter plate provided by an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of a second viewing angle of a first structure of a support block of a composite adapter plate provided in an embodiment of the utility model;

[0026] Figure 5 A schematic diagram of a second structure of a support block of a composite adapter plate provided in an embodiment of the utility model;

[0027] Figure 6 A schematic diagram of the structure of the welding of the adapter and the tab provided in the embodiment of the utility model;

[0028] Figure 7 A schematic diagram of the structure of the support block installed after the adapter and the tab are welded according to an embodiment of the utility model;

[0029] Figure 8 A schematic diagram of the connection structure of the support block after the core is closed provided by an embodiment of the utility model;

[0030] Fig. 9 for Figure 8 A local enlarged schematic diagram of the middle A;

[0031] Fig.10 A schematic diagram of the connection structure of the support block provided by an embodiment of the utility model after the core is closed from another perspective.

[0032] Icons: 110 - adapter plate; 111 - first connecting plate; 112 - connecting portion; 113 - second connecting plate; 120 - support block; 121 - first segment; 122 - second segment; 123 - third segment; 124 - fixing groove; 125 - convex rib; 126 - guide slope; 210 - winding core; 220 - pole ear. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] 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 present invention to be protected, 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 this field without creative work are within the scope of protection of the present invention.

[0035] 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.

[0036] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 the present invention can be understood according to specific circumstances.

[0039] Please refer to Figure 1 This embodiment provides a composite adapter plate, which is used in a battery structure. The composite adapter plate is used to fix the tab 220 to prevent the tab 220 from being reversely inserted into the winding core 210 and causing a short circuit.

[0040] Combination Figures 2 to 4 The composite adapter plate includes an adapter sheet 110 and a support block 120. The adapter sheet 110 is used to connect to the pole lug 220. The support block 120 includes a first segment 121, a second segment 122 and a third segment 123 connected in sequence, and the first segment 121 and the third segment 123 are arranged in parallel and opposite to each other. The first segment 121, the second segment 122 and the third segment 123 form a fixing groove 124 for accommodating the adapter sheet 110 and the pole lug 220. The pole lug 220 is clamped between the first segment 121 and the adapter sheet 110, and the third segment 123 is located on the side of the adapter sheet 110 away from the pole lug 220. The composite adapter plate can effectively fix the pole lug 220, prevent the pole lug 220 from being inserted inversely into the winding core 210, and improve the safety of the battery.

[0041] In this embodiment, the adapter 110 includes a first connecting piece 111, a connecting portion 112, and a second connecting piece 113 connected in sequence. The first connecting piece 111 and the second connecting piece 113 are arranged in parallel. The first connecting piece 111, the connecting portion 112, and the second connecting piece 113 are connected to form a U shape. The first connecting piece 111 and the second connecting piece 113 are respectively used to connect to two tabs 220. The first connecting piece 111, the connecting portion 112, and the second connecting piece 113 can be integrally formed or separately connected.

[0042] Two support blocks 120 are provided on each adapter plate 110. The two support blocks 120 are connected to the first connecting plate 111 and the second connecting plate 113 respectively. The notches of the fixing grooves 124 formed by the two support blocks 120 are away from each other. In other words, the second segments 122 of the two support blocks 120 are respectively connected to the side where the first connecting plate 111 and the second connecting plate 113 are close to each other. In this way, it is conducive to effectively fixing and protecting the tabs 220.

[0043] The support block 120 is made of insulating material, such as non-metallic material. Optionally, the material of the support block 120 includes but is not limited to PP, PET, PC or PPS modified materials that are resistant to electrolyte corrosion.

[0044] A convex rib 125 is provided on one side of the first segment 121 close to the third segment 123 and / or on one side of the third segment 123 close to the first segment 121. It can be understood that a convex rib 125 is provided on one side of the first segment 121 close to the third segment 123. Alternatively, a convex rib 125 is provided on one side of the third segment 123 close to the first segment 121. Alternatively, a convex rib 125 is provided on one side of the first segment 121 and the third segment 123 close to each other. The provision of the convex rib 125 can make the clamping of the support block 120 and the first connecting piece 111 or the second connecting piece 113 more stable and reliable, and has a certain clamping and fastening force on the tab 220 and the adapter sheet 110, thereby preventing the support block 120 and the adapter sheet 110 from relative displacement.

[0045] The shape, size, number and distribution position of the ribs 125 can be flexibly set according to actual conditions and are not specifically limited here.

[0046] Optionally, the second segment 122 abuts against one end of the adapter sheet 110. The length of one end of the first segment 121 away from the second segment 122 exceeds the edge of one end of the adapter sheet 110 away from the second segment 122, and the excess portion is used to fix and support the pole lug 220. It can be understood that the second segment 122 abuts against one end of the first connecting sheet 111 close to the second connecting sheet 113, or the second segment 122 abuts against one end of the second connecting sheet 113 close to the first connecting sheet 111. During the core closing process, when the pole lug 220 is bent, it can be bent along one end of the first segment 121 away from the second segment 122. In this way, the portion of the end of the first segment 121 away from the second segment 122 that exceeds the edge of the first connecting sheet 111 or the second connecting sheet 113 can play a role in shaping, fixing and supporting the bending of the pole lug 220, so that the shape of the pole lug 220 after bending is more regular, and prevent the pole lug 220 from being inserted into the winding core 210 in reverse to cause a short circuit.

[0047] Optionally, the end of the first segment 121 away from the second segment 122 is in an arc shape to prevent scratching or puncturing the tab 220. Of course, in some embodiments, the end of the first segment 121 away from the second segment 122 can also be rounded to avoid damage to the tab 220.

[0048] Optionally, the extension length of the third segment 123 is less than the extension length of the first segment 121. The first segment 121 mainly supports the pole lug 220, and the end of the first segment 121 away from the second segment 122 is conducive to forming the bent profile of the pole lug 220. The third segment 123 is mainly used to cooperate with the first segment 121 to clamp the adapter 110 and the pole lug 220. The third segment 123 only needs to be parallel to and opposite to the first segment 121, and its extension length is not limited. In this embodiment, the third segment 123 is shorter, shorter than the first segment 121. This arrangement can avoid structures such as the injection hole on the cover plate, and can also have the effect of reducing weight.

[0049] Of course, in some other embodiments, the third segment 123 may also be as long as the first segment 121. In addition, the third segment 123 is adaptively provided with an avoidance hole to avoid structures such as the injection hole, which can also play a role in reducing weight.

[0050] Combination Figure 5 , a guiding slope 126 is provided at one end of the third segment 123 away from the second segment 122. Alternatively, a guiding slope 126 is provided at one end of the first segment 121 away from the second segment 122. Alternatively, a guiding slope 126 is provided on each of the first segment 121 and the third segment 123. This facilitates the assembly of the support block 120 and the adapter sheet 110 and improves assembly and disassembly efficiency.

[0051] Alternatively, the first segment 121 and the third segment 123 are formed with notches opposite to the second segment 122, and the notches are in the shape of bell mouths. This arrangement is also to facilitate the assembly of the support block 120 and the adapter 110, improve the assembly and disassembly efficiency, and avoid scratching the tab 220 during the assembly process.

[0052] The embodiment of the utility model further provides a battery, comprising a winding core 210 having a pole tab 220 and the composite adapter plate as described above, wherein the pole tab 220 is connected to the adapter plate 110, and the pole tab 220 and the adapter plate 110 are located in the fixing groove 124 of the support block 120. It should be noted that the assembly principle of the pole tab 220 and the composite adapter plate is as follows:

[0053] Combination Figure 6 , place at least two cores 210 opposite to each other, and the tabs 220 on the two cores 210 are opposite to each other. Place the adapter 110 between the two cores 210. The first connecting piece 111 is welded to the tab 220 of one of the cores 210, and the second connecting piece 113 is welded to the tab 220 of the other core 210. It is easy to understand that each core 210 is provided with a positive pole tab 220 and a negative pole tab 220. When connecting two cores 210, two adapters 110 are required. For example, one adapter 110 is used to connect the positive pole tabs 220 of two cores 210. Another adapter 110 is used to connect the negative pole tabs 220 of two cores 210.

[0054] Combination Figure 7 and Figure 1 After the tab 220 and the adapter sheet 110 are welded, the support block 120 is installed. Optionally, the support block 120 is installed from the end of the tab 220 away from the winding core 210, and the notch of the fixing slot 124 of the support block 120 faces the winding core 210, and moves toward the direction close to the winding core 210 until the second segment 122 abuts against the edge of the first connecting sheet 111 or the second connecting sheet 113, so that the tab 220 is sandwiched between the first segment 121 and the first connecting sheet 111 or the second connecting sheet 113. Among them, the end of the first segment 121 away from the second segment 122 exceeds the edge of the first connecting sheet 111 or the second connecting sheet 113.

[0055] Combination Figures 8 to 10 , bend the tab 220, and close the two winding cores 210. The tab 220 is bent along the end of the first segment 121 away from the second segment 122. The first segment 121 supports and fixes the tab 220, which is conducive to a more regular contour shape of the tab 220 after bending. At the same time, the first segment 121 can also protect the welding area of ​​the tab 220 and the adapter 110, thereby improving the reliability of the welding structure.

[0056] The present utility model also provides an electric device, including a device body and a battery as described above. The electric device includes but is not limited to a vehicle, a ship or an aircraft. The battery can be used to provide driving power for the device body, and can also be used as a power source for a control system of the device body, which is not specifically limited here.

[0057] In summary, the composite adapter board, battery and electrical equipment provided by the embodiments of the present invention have the following beneficial effects, including:

[0058] The composite adapter plate provided by the embodiment of the utility model adopts the adapter sheet 110 and the support block 120 to jointly fix the pole ear 220, and the pole ear 220 is sandwiched between the first segment 121 of the support block 120 and the adapter sheet 110, which can effectively prevent the pole ear 220 from being inserted into the winding core 210 and causing a short circuit, thereby improving the reliability and safety of the battery structure. The support block 120 is provided with a convex rib 125, which has a reliable structure and is non-slip and non-loose. The third segment 123 is shorter than the first segment 121, which can avoid the injection hole, etc., and can also play a role in weight reduction. In addition, the first segment 121 exceeds the edge of the adapter sheet 110, which can support and shape the bending part of the pole ear 220, so that the contour shape of the pole ear 220 after bending is more regular, preventing the pole ear 220 from being inserted into the winding core 210, and protecting the welding area of ​​the pole ear 220.

[0059] The battery and electrical equipment provided by the embodiment of the utility model include the above-mentioned composite adapter plate, which can effectively prevent the tab 220 from being inserted into the winding core 210 in reverse to cause a short circuit, reduce safety hazards, and improve the reliability and safety of the battery structure.

[0060] 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 composite adapter plate, characterized in that: include: An adapter plate (110), wherein the adapter plate (110) is used to be connected to the tab (220); A support block (120), the support block (120) comprising a first segment (121), a second segment (122) and a third segment (123) connected in sequence, the first segment (121) and the third segment (123) being arranged opposite to and in parallel; the first segment (121), the second segment (122) and the third segment (123) forming a fixing groove (124) for accommodating the adapter plate (110) and the tab (220); The pole lug (220) is sandwiched between the first segment (121) and the adapter plate (110), and the third segment (123) is located on a side of the adapter plate (110) away from the pole lug (220).

2. The composite adapter plate according to claim 1, characterized in that: A convex rib (125) is provided on a side of the first segment (121) close to the third segment (123) and / or a side of the third segment (123) close to the first segment (121).

3. The composite adapter plate according to claim 1, characterized in that: The second segment (122) abuts against one end of the adapter plate (110); the length of one end of the first segment (121) away from the second segment (122) exceeds the edge of one end of the adapter plate (110) away from the second segment (122), and the excess portion is used to fix and support the pole ear (220).

4. The composite adapter plate according to claim 3, characterized in that: One end of the first segment (121) away from the second segment (122) is in an arc shape.

5. The composite adapter plate according to claim 1, characterized in that: The extension length of the third section (123) is shorter than the extension length of the first section (121).

6. The composite adapter plate according to claim 1, characterized in that: An end of the third segment (123) away from the second segment (122) is provided with a guiding inclined surface (126).

7. The composite adapter plate according to claim 1, characterized in that: The first segment (121) and the third segment (123) are formed with slots opposite to the second segment (122), and the slots are in the shape of bell mouths.

8. The composite adapter plate according to any one of claims 1 to 7, characterized in that: The support block (120) is made of insulating material.

9. A battery, characterized in that: It comprises a winding core (210) having a pole ear (220) and a composite adapter plate as claimed in any one of claims 1 to 8, wherein the pole ear (220) and the adapter plate (110) are connected, and the pole ear (220) and the adapter plate (110) are located in a fixing groove (124) of the support block (120).

10. An electrical device, characterized in that: Comprising the battery as claimed in claim 9.

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