Battery adapter plate, battery and electric equipment

Abstract

The utility model provides a battery adapter plate, a battery and electric equipment, and relates to the technical field of battery manufacturing. The battery adapter plate comprises a connecting sheet and a shaping sheet connected with the connecting sheet. The connecting piece comprises a first section, a second section and a third section which are connected in sequence; the first segment and the third segment are arranged in parallel. The shaping sheet comprises a free end and a connecting end; the first section and the third section are respectively connected with the connecting end of the shaping sheet, and the shaping sheet and the first section as well as the shaping sheet and the third section respectively form two clamping grooves with opposite notches; and the clamping grooves are used for clamping the tabs. The thickness of the shaping piece is smaller than that of the connecting piece. The battery adapter plate can fix the tabs and prevent the tabs from being inversely inserted into the roll core to cause short circuit, and is more reliable in structure and high in safety.

Description

Technical Field

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

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

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

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

[0005] In a first aspect, the utility model provides a battery adapter plate, comprising a connecting piece and a shaping piece connected to the connecting piece;

[0006] The connecting piece comprises a first segment, a second segment and a third segment which are connected in sequence; the first segment and the third segment are arranged in parallel;

[0007] The shaping sheet comprises a free end and a connecting end; the first segment and the third segment are respectively connected to the connecting end of the shaping sheet, and the shaping sheet and the first segment and the third segment respectively form a clamping groove with two notches facing away from each other; the clamping groove is used to clamp the pole lug;

[0008] The thickness of the shaping sheet is smaller than the thickness of the connecting sheet.

[0009] In an optional embodiment, the first segment, the second segment and the third segment are connected in a U shape, and a gap is formed between the first segment and the third segment;

[0010] The connecting ends of the shaping sheet are respectively connected to one side of the first segment and the third segment close to the notch.

[0011] In an optional embodiment, a deformed curved portion is provided between the free end and the connecting end of the shaping sheet.

[0012] In an optional embodiment, the deformed curved portion includes a fold provided on the shaping sheet.

[0013] In an optional embodiment, a groove and / or a through hole is provided on the fold.

[0014] In an optional embodiment, when the shaping sheet is used to press the pole ear, the free end of the shaping sheet on the first segment extends out or is flush with the end of the first segment away from the third segment; the free end of the shaping sheet on the third segment extends out or is flush with the end of the third segment away from the first segment.

[0015] In an optional embodiment, the end portion of the free end of the shaping sheet is bent in a direction away from the connecting sheet to form a curled portion.

[0016] In an optional embodiment, the material of the shaping sheet is the same as the material of the connecting sheet.

[0017] In a second aspect, the utility model provides a battery, comprising a winding core having a pole ear and a battery adapter plate as described in any one of the aforementioned embodiments, wherein the pole ear and the connecting piece are welded, and the pole ear is located in the clamping groove.

[0018] In a third aspect, the utility model provides an electrical device, comprising the battery as described in the above embodiment.

[0019] The beneficial effects of the embodiments of the utility model include:

[0020] The battery adapter plate provided by the embodiment of the utility model includes a connected shaping sheet and a connecting sheet. The shaping sheet and the connecting sheet are connected to form a clamping groove for clamping the pole ear, which can effectively fix the pole ear, and the shaping sheet can prevent the pole ear from being inserted backwards into the winding core and causing a short circuit, which is beneficial to improving the structural reliability and safety of the battery.

[0021] The battery and electrical equipment provided by the embodiments of the utility model include the above-mentioned battery adapter plate, which has a safe and reliable structure and reduces the risk of short circuit caused by the reverse insertion of the tab into the winding core. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 A schematic structural diagram of a flattened state of a shaping sheet of a battery adapter provided by an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the connection structure between the battery adapter plate and the tab after the battery core is closed provided in an embodiment of the utility model;

[0025] Figure 3A structural schematic diagram of a first viewing angle of a shaping sheet of a battery adapter plate provided by an embodiment of the utility model before being flattened;

[0026] Figure 4 A schematic structural diagram of a battery adapter plate provided by an embodiment of the utility model before the shaping sheet is flattened from a second viewing angle;

[0027] Figure 5 A schematic structural diagram of a first-view perspective of a shaping sheet of a battery adapter plate holding a tab provided by an embodiment of the utility model;

[0028] Figure 6 for Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0029] Figure 7 Another structural schematic diagram of a battery adapter plate provided in an embodiment of the utility model;

[0030] Figure 8 A schematic diagram of the structure of the battery adapter provided by the embodiment of the utility model before the shaping sheet presses the pole ear;

[0031] Fig. 9 A schematic diagram of the structure of the battery adapter provided by the embodiment of the utility model after the shaping sheet presses the pole ear;

[0032] Fig.10 for Fig. 9 A local enlarged schematic diagram of point A in the middle.

[0033] Icons: 100-battery adapter plate; 110-connecting plate; 111-first segment; 112-second segment; 113-third segment; 114-notch; 120-shaping plate; 121-clamping groove; 122-deformed bending portion; 123-curling portion; 124-connecting end; 125-free end; 200-battery; 210-winding core; 220-ear. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Please refer to Figure 1 and Figure 2 The battery adapter plate 100 provided in this embodiment can be applied to the battery 200 . It can effectively prevent the tab 220 from being inserted into the winding core 210 in reverse to cause a short circuit, thereby improving the reliability and safety of the battery 200 .

[0041] Combination Figure 3 , Figure 4The battery adapter plate 100 includes a connecting piece 110 and a shaping piece 120 connected to the connecting piece 110. The connecting piece 110 includes a first segment 111, a second segment 112 and a third segment 113 which are connected in sequence. Among them, the first segment 111 and the third segment 113 are arranged in parallel. The first segment 111, the second segment 112 and the third segment 113 are connected in a U shape. The shaping piece 120 includes a free end 125 and a connecting end 124. The first segment 111 and the third segment 113 are respectively connected to the connecting end 124 of the shaping piece 120, and the shaping piece 120 forms a clamping groove 121 with two notches facing each other with the first segment 111 and the third segment 113. The clamping groove 121 is used to clamp the pole ear 220, which effectively fixes the pole ear 220 and prevents the pole ear 220 from being inserted into the winding core 210 backwards to cause a short circuit. The thickness of the shaping sheet 120 is less than that of the connecting sheet 110. This facilitates the bending and deformation of the shaping sheet 120 to better fix and clamp the tab 220. The battery adapter plate 100 can fix the tab 220 and prevent the tab 220 from being inserted into the winding core 210 backwards to cause a short circuit. The structure is more reliable and safer.

[0042] The first segment 111, the second segment 112 and the third segment 113 are connected in a U-shape, and a notch 114 is formed between the first segment 111 and the third segment 113. The connecting end 124 of the shaping sheet 120 is respectively connected to the first segment 111 and the third segment 113 on one side close to the notch 114. The notch of the clamping groove 121 formed by the first segment 111 and the shaping sheet 120 is arranged toward the side away from the notch 114. The notch of the clamping groove 121 formed by the third segment 113 and the shaping sheet 120 is arranged toward the side away from the notch 114.

[0043] Optionally, a deformable curved portion 122 is provided between the free end 125 and the connecting end 124 of the shaping sheet 120. The deformable curved portion 122 is used to bend and deform the shaping sheet 120 so as to better approach or abut against the connecting sheet 110. That is, the deformable curved portion 122 is used to make the notch of the clamping groove 121 easier to become smaller so as to better clamp and fix the tab 220.

[0044] Optionally, the deformed curved portion 122 includes a fold provided on the shaping sheet 120. This facilitates the shaping sheet 120 to rotate about the fold as an axis, so that the notch of the clamping groove 121 becomes smaller, and the tab 220 is better fixed.

[0045] Optionally, grooves and / or through holes are provided on the fold. It is understandable that only grooves can be provided on the fold, and the number, shape, size and distribution position of the grooves are not limited. Alternatively, only through holes can be provided on the fold, and the number, shape, size and distribution position of the through holes are not limited. Alternatively, grooves and through holes are provided on the fold respectively, and the number, shape, size and distribution position of the grooves and through holes are not limited. Providing grooves or through holes can reduce the resistance of the shaping sheet 120 to rotate around the fold, making bending and deformation easier and more convenient to operate. At the same time, it is conducive to ventilation, weight reduction, and improved heat dissipation effect.

[0046] It can be understood that the connection ends 124 of the two shaping sheets 120 are welded to the first segment 111 and the third segment 113 respectively. There is a certain distance between the side of the connection end 124 close to the free end 125 and the fold. The distance is roughly equal to the thickness of the tab 220. This arrangement allows the tab 220 to better abut against the shaping sheet 120 and the connection sheet 110, and has a better fixing and supporting effect on the tab 220.

[0047] Combination Figure 5 , Figure 6 When the shaping sheet 120 is used to press the tab 220, the free end 125 of the shaping sheet 120 on the first segment 111 extends out or is flush with the end of the first segment 111 away from the third segment 113. The free end 125 of the shaping sheet 120 on the third segment 113 extends out or is flush with the end of the third segment 113 away from the first segment 111.

[0048] In this embodiment, the free end 125 of the shaping sheet 120 extends beyond the side away from the first segment 111 and the third segment 113. With this arrangement, when the tab 220 is bent during the core assembly process, the portion of the shaping sheet 120 that extends beyond the first segment 111 and the third segment 113 can effectively support and fix the tab 220. In other words, when the tab 220 is bent, it can be bent along the free end 125 of the shaping sheet 120, and the tab 220 can be abutted against the free end 125 of the shaping sheet 120 after being bent, that is, the portion of the shaping sheet 120 that extends beyond the first segment 111 and the third segment 113 can effectively support and fix the tab 220, so that the tab 220 is bent into a more regular shape, and the tab 220 is prevented from being reversely bent and inserted downward into the winding core 210, causing the winding core 210 to short-circuit. At the same time, the shaping sheet 120 can also protect the welding area of ​​the tab 220 and the connecting sheet 110 .

[0049] Of course, in some embodiments, the free end 125 of the shaping sheet 120 may also be flush with the edge of the first segment 111 or the third segment 113. Alternatively, the free end 125 of the shaping sheet 120 is located on the first segment 111 or the third segment 113. That is, in the extension direction of the second segment 112, the length of the shaping sheet 120 is less than the length of the first segment 111 or the third segment 113. This can also prevent the tab 220 from being inserted into the winding core 210 backwards, and protect the welding area of ​​the tab 220. In this embodiment, the length of the first segment 111 is equal to the length of the third segment 113.

[0050] Combination Figure 7 , the end of the free end 125 of the shaping sheet 120 is bent in a direction away from the connecting sheet 110 to form a curling portion 123. In this embodiment, the curling portion 123 is in a circular ring shape, that is, after the free end 125 of the shaping sheet 120 is bent approximately 360 degrees, the end of the free end 125 is in contact with or connected to the surface of the shaping sheet 120. Of course, the shape and size of the curling portion 123 are not specifically limited. The curling portion 123 can prevent the shaping sheet 120 from scratching the tab 220, and protect the tab 220.

[0051] Optionally, the material of the shaping sheet 120 is the same as that of the connecting sheet 110. The shaping sheet 120 and the connecting sheet 110 are both made of metal, including but not limited to at least one of aluminum, iron, copper, palladium, nickel, gold and silver.

[0052] The battery adapter plate 100 provided in this embodiment is connected in the following manner:

[0053] Combination Figure 8 , two shaping sheets 120 and a connecting sheet 110 are welded to form two clamping grooves 121 with notches facing each other. Take the connection of the first battery cell and the second battery cell as an example. The first battery cell is provided with a positive pole tab 220 and a negative pole tab 220, and the second battery cell is provided with a positive pole tab 220 and a negative pole tab 220. The positive pole tab 220 on the first battery cell and the positive pole tab 220 on the second battery cell are respectively placed in two clamping grooves 121 on the same battery adapter plate 100. The negative pole tab 220 on the first battery cell and the negative pole tab 220 on the second battery cell are respectively placed in two clamping grooves 121 on another battery adapter plate 100. Each pole tab 220 is welded to the corresponding connecting sheet 110.

[0054] Combination Fig. 9 and Fig.10 After welding, the shaping sheet 120 is flattened along the fold so that the shaping sheet 120 is roughly parallel to the connecting sheet 110 , and the shaping sheet 120 is arranged close to the pole tab 220 to clamp and fix the pole tab 220 .

[0055] Combination Figure 2, the first battery cell and the second battery cell are combined, each pole ear 220 is bent in the direction close to the shaping sheet 120, and each pole ear 220 can be bent along the end of the free end 125 of the shaping sheet 120, so that the free end 125 of the shaping sheet 120 can limit, fix and support the pole ear 220, so that the bending shape of the pole ear 220 is more regular. In addition, the shaping sheet 120 can prevent the pole ear 220 from being inserted into the winding core 210 in reverse to cause a short circuit, and can also protect the welding area of ​​the pole ear 220 and the connecting sheet 110.

[0056] When viewed from the top of the battery cell after the cells are assembled, the structure of the battery 200 is, from top to bottom, a connecting sheet 110 , a tab 220 , and a shaping sheet 120 .

[0057] The embodiment of the utility model also provides a battery 200, including a winding core 210 with a pole tab 220 and the battery adapter plate 100 as described above, the pole tab 220 and the connecting sheet 110 are welded, and the pole tab 220 is located in the clamping groove 121. In the battery 200, the shaping sheet 120 supports, limits and protects the pole tab 220, and the bending shape of the pole tab 220 is more regular, which effectively prevents the pole tab 220 from being inserted into the winding core 210 to cause a short circuit, and can also protect the welding area of ​​the pole tab 220 and the connecting sheet 110. The structure is reliable and the safety is high.

[0058] The embodiment of the utility model provides an electric device, including the aforementioned battery 200. The electric device includes but is not limited to a vehicle, a ship or an aircraft.

[0059] In summary, the battery adapter plate 100, the battery 200 and the electrical equipment provided by the embodiment of the utility model have the following beneficial effects, including:

[0060] The battery adapter plate 100 provided by the embodiment of the utility model includes a connected shaping sheet 120 and a connecting sheet 110. The shaping sheet 120 and the connecting sheet 110 are connected to form a clamping groove 121 for clamping the pole ear 220, which can effectively fix the pole ear 220, and the shaping sheet 120 can prevent the pole ear 220 from being inserted into the winding core 210 in reverse to cause a short circuit, which is beneficial to improving the structural reliability and safety of the battery 200. The shaping sheet 120 can also limit the bending part of the pole ear 220, so that the shape of the bent pole ear 220 is more regular. In addition, it can also protect the welding area of ​​the pole ear 220 and the connecting sheet 110, and the structure is reliable, which is beneficial to prolonging the service life of the battery 200.

[0061] The battery 200 and the electrical equipment provided by the embodiment of the utility model include the above-mentioned battery adapter plate 100, which has a safe and reliable structure and reduces the risk of short circuit caused by the tab 220 being inserted inverted into the winding core 210.

[0062] 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 adapter plate, characterized in that: It comprises a connecting piece (110) and a shaping piece (120) connected to the connecting piece (110); The connecting piece (110) comprises a first segment (111), a second segment (112) and a third segment (113) which are connected in sequence; the first segment (111) and the third segment (113) are arranged in parallel; The shaping sheet (120) comprises a free end (125) and a connecting end (124); the first segment (111) and the third segment (113) are respectively connected to the connecting end (124) of the shaping sheet (120); the shaping sheet (120) and the first segment (111) and the third segment (113) respectively form two clamping grooves (121) with notches facing away from each other; the clamping groove (121) is used to clamp the pole lug (220); The thickness of the shaping sheet (120) is smaller than the thickness of the connecting sheet (110).

2. The battery adapter plate according to claim 1, characterized in that: The first segment (111), the second segment (112) and the third segment (113) are connected in a U shape, and a gap (114) is formed between the first segment (111) and the third segment (113); The connecting ends (124) of the shaping sheet (120) are respectively connected to one side of the first segment (111) and the third segment (113) close to the notch (114).

3. The battery adapter plate according to claim 1, characterized in that: A deformed curved portion (122) is provided between the free end (125) and the connecting end (124) of the shaping sheet (120).

4. The battery adapter plate according to claim 3, characterized in that: The deformed curved portion (122) comprises a fold provided on the shaping sheet (120).

5. The battery adapter plate according to claim 4, characterized in that: The fold is provided with a groove and / or a through hole.

6. The battery adapter plate according to claim 1, characterized in that: When the shaping sheet (120) is used to press the pole ear (220), the free end (125) of the shaping sheet (120) on the first segment (111) extends out or is flush with an end of the first segment (111) away from the third segment (113); the free end (125) of the shaping sheet (120) on the third segment (113) extends out or is flush with an end of the third segment (113) away from the first segment (111).

7. The battery adapter plate according to claim 1, characterized in that: The end portion of the free end (125) of the shaping sheet (120) is bent in a direction away from the connecting sheet (110) to form a curling portion (123).

8. The battery adapter plate according to any one of claims 1 to 7, characterized in that: The material of the shaping sheet (120) is the same as the material of the connecting sheet (110).

9. A battery, characterized in that: It comprises a winding core (210) having a pole lug (220) and a battery adapter plate as claimed in any one of claims 1 to 8, wherein the pole lug (220) and the connecting sheet (110) are welded, and the pole lug (220) is located in the clamping groove (121).

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

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