Protection assembly, battery and electric device

Abstract

The utility model discloses a protection assembly, a battery and a power utilization device, the protection assembly has a thickness direction and a width direction, and the protection assembly comprises a hard board, a connecting piece and a soft board. A groove is formed in the hard board, and the groove is sunken in the thickness direction; the connecting piece comprises a first connecting structure and a second connecting structure connected with the first connecting structure, and the first connecting structure is welded to the groove wall, in the width direction, of the groove. The soft board is partially arranged in the groove and pressed on the first connecting structure, the second connecting structure is bent relative to the first connecting structure, the bending direction of the second connecting structure faces the soft board, and at least part of the second connecting structure is pressed on the side, away from the first connecting structure, of the soft board. The protection assembly can reduce the influence on the thickness of the battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a protection assembly, a battery and a power consumption device. BACKGROUND

[0002] In a battery structure, a PCB protection plate is usually provided, which refers to an integrated circuit board for protecting the safety of the battery. Its main function is to protect the battery from overcharging, over-discharging, overcurrent, short circuit and high temperature, etc. dangerous conditions, prolonging the service life of the battery. The PCB protection plate usually includes a soft plate and a hard plate. In the traditional battery structure, the soft plate and the hard plate of the PCB protection plate are usually realized by welding. The thickness of the PCB plate after welding is usually thick, which leads to the thickness of the battery being thick. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to overcome the shortcomings of the prior art and provide a protection assembly that can reduce the impact on the thickness of the battery.

[0004] The present application also provides a battery.

[0005] The present application also provides a power consumption device.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] According to the protection assembly of the first aspect of the present application, there is a thickness direction and a width direction. The protection assembly comprises: a hard plate, the hard plate is provided with a groove, the groove is recessed along the thickness direction; a connecting piece, the connecting piece comprises a first connecting structure and a second connecting structure connected with the first connecting structure, the first connecting structure is welded with the groove wall along the width direction; a soft plate, the soft plate is partially arranged in the groove and is pressed on the first connecting structure, the second connecting structure is bent relative to the first connecting structure, the bending direction of the second connecting structure is towards the soft plate, and the second connecting structure is at least partially pressed on one side of the soft plate away from the first connecting structure.

[0008] The protection assembly of the present application has the following advantages:

[0009] In the protection assembly of the application, the soft plate is placed in the groove on the hard plate to reduce the thickness of the protection assembly after the soft plate is connected with the hard plate. When the soft plate is connected with the hard plate, the first connecting structure of the connecting piece is welded with the groove wall along the width direction, the soft plate is pressed on the first connecting structure, and the second connecting structure is bent towards the soft plate relative to the first connecting structure and is pressed on the side of the soft plate away from the first connecting structure. Therefore, the soft plate is clamped and fixed by the first connecting structure and the second connecting structure, and the soft plate is connected with the hard plate by the connecting piece. This connection method can improve the connection stability between the soft plate and the hard plate and reduce the influence on the thickness of the protection assembly, thereby reducing the influence on the thickness of the battery.

[0010] According to the protection assembly of the first aspect of the application, the connecting piece is provided in plurality, and the plurality of connecting pieces are symmetrically arranged at both ends of the soft plate along the width direction and are symmetrically arranged along the width direction.

[0011] According to the protection assembly of the first aspect of the application, the second connecting structure has a pressing portion and a limiting portion, one end of the limiting portion is connected with the pressing portion, the other end of the limiting portion is connected with the first connecting structure, the pressing portion is pressed on the side of the soft plate away from the first connecting structure along the thickness direction, and the limiting portions symmetrically arranged along the width direction are respectively abutted with both ends of the soft plate along the width direction.

[0012] According to the protection assembly of the first aspect of the application, in the thickness direction, the height of the groove is L1, and the thickness of the soft plate is L2, and L1≥L2 is satisfied.

[0013] According to the protection assembly of the first aspect of the application, the limiting portion is arranged in extension along the thickness direction, and the length of the limiting portion along the width direction is L3, and L3≥L2 is satisfied.

[0014] According to the protection assembly of the first aspect of the application, the connecting piece further has a protruding structure, the protruding structure is arranged on the second connecting structure and protrudes from the second connecting structure, and the protruding structure is located on the pressing surface of the second connecting structure and the soft plate and is pressed on the soft plate.

[0015] According to the protection assembly of the first aspect of the application, the protruding structure is provided in plurality, and the plurality of protruding structures are distributed on the pressing surface of the second connecting structure and the soft plate along the width direction and are pressed on the soft plate.

[0016] According to the protection assembly of the first aspect of the present application, the protection assembly further comprises an adhesive layer, and the second connecting structure is adhered to the soft plate through the adhesive layer.

[0017] According to the battery of the second aspect of the present application, the protection assembly described above.

[0018] The battery of the present application has the following advantages:

[0019] In the battery of the present application, since the protection assembly described above can have a relatively thin thickness, the battery of the present application can have a relatively thin thickness, so that the battery of the present application can meet the demand of the use scenario of the ultra-thin battery.

[0020] According to the power consuming device of the third aspect of the present application, the protection assembly described above or the battery described above.

[0021] The power consuming device of the present application has the following advantages:

[0022] In the power consuming device of the present application, since the protection assembly described above or the battery described above both have a relatively thin thickness, the power consuming device of the present application can have a relatively small structure size, so that the power consuming device of the present application can meet the demand of the use scenario of small size. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0024] Figure 1 A top view structural schematic diagram of the protection assembly in the present application is shown;

[0025] Figure 2 A front view structural schematic diagram of the protection assembly in the present application is shown;

[0026] Figure 3 A side view structural schematic diagram of the protection assembly in the present application is shown;

[0027] Figure 4 A structural schematic diagram of the connecting piece and the soft plate in the present application is shown Figure 1 .

[0028] Figure 5 A structural schematic diagram of the connecting piece and the soft plate in the present application is shown Figure 2 .

[0029] Explanation of main element symbols:

[0030] 100 - hard plate; 110 - groove;

[0031] 200 - connecting piece; 210 - first connecting structure; 220 - second connecting structure; 221 - press-fit portion; 222 - limiting portion; 230 - protruding structure;

[0032] 300 - soft plate;

[0033] x - thickness direction; y - width direction; z - length direction. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely for the purpose of explanation of the present application, and are not to be understood as a limitation of the present application.

[0035] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0039] Referring to Figure 3 , Figure 4 and Figure 2 , the protective assembly involved in the embodiments of the present application has a thickness direction x and a width direction y, the thickness direction x intersects the width direction y, and the protective assembly comprises a hard plate 100, a connecting piece 200 and a soft plate 300.

[0040] Specifically, the hard plate 100 is provided with a groove 110, the groove 110 is recessed along the thickness direction x; the connecting piece 200 comprises a first connecting structure 210 and a second connecting structure 220 connected with the first connecting structure 210, the first connecting structure 210 is welded with the groove wall of the groove 110 along the width direction y; the soft plate 300 is partially arranged in the groove 110 and is pressed on the first connecting structure 210, the second connecting structure 220 is bent relative to the first connecting structure 210, the bending direction of the second connecting structure 220 is towards the soft plate 300 and is at least partially pressed on one side of the soft plate 300 away from the first connecting structure 210.

[0041] It should be noted that the thickness direction x is the direction indicated by x in Figure 3 and Figure 1 , and the width direction y is the direction indicated by y in Figure 1 .

[0042] In the protection assembly of the present application, since the hard plate 100 is provided with the groove 110 recessed along the thickness direction x, the soft plate 300 can be partially placed in the groove 110 to reduce the thickness of the protection assembly after the soft plate 300 is connected with the hard plate 100. When the soft plate 300 is connected with the hard plate 100, the first connecting structure 210 of the connecting piece 200 is welded with the groove wall of the groove 110 along the width direction y, the soft plate 300 is pressed on the first connecting structure 210, and the second connecting structure 220 is bent relative to the first connecting structure 210 towards the soft plate 300 and is pressed on the side of the soft plate 300 away from the first connecting structure 210. Therefore, the soft plate 300 can be clamped and fixed by the first connecting structure 210 and the second connecting structure 220, so that the soft plate 300 is connected with the hard plate 100 by the connecting piece 200. This connection method can not only improve the connection stability between the soft plate 300 and the hard plate 100, but also reduce the influence on the thickness of the protection assembly, thereby reducing the influence on the thickness of the battery.

[0043] Specifically, in the present embodiment, the second connecting structure 220 is cold-pressed and combined on the side of the soft plate 300 away from the first connecting structure 210.

[0044] Specifically, in the present embodiment, the protection assembly of the present application is a PCB protection plate.

[0045] Referring to Figure 1 As shown in the figure, the connecting piece 200 is provided with a plurality of connecting pieces 200, and the plurality of connecting pieces 200 are symmetrically arranged at both ends of the soft plate 300 along the width direction y, and the symmetrically arranged connecting pieces 200 are respectively connected with both sides of the soft plate 300 along the width direction y.

[0046] In the present embodiment, since the plurality of connecting pieces 200 are symmetrically arranged at both ends of the soft plate 300 along the width direction y, and the symmetrically arranged connecting pieces 200 are respectively connected with both sides of the soft plate 300 along the width direction y, the soft plate 300 can be simultaneously pressed by the symmetrically arranged connecting pieces 200 along the width direction y to improve the connection stability between the soft plate 300 and the hard plate 100.

[0047] Specifically, the protection assembly also has a length direction z, which intersects with the width direction y and the thickness direction x, and the length direction z is Figure 2 and Figure 5 The direction z refers to the direction that the hard plate 100 is provided with a plurality of connecting pieces 200 at both ends along the width direction y, and the plurality of connecting pieces 200 at both ends of the soft plate 300 along the width direction y are arranged along the length direction z, thereby further improving the connection stability between the soft plate 300 and the hard plate 100.

[0048] Referring to Figure 3As shown, the second connecting structure 220 has a pressing portion 221 and a limiting portion 222, one end of the limiting portion 222 is connected with the pressing portion 221, the other end of the limiting portion 222 is connected with the first connecting structure 210, the pressing portion 221 is pressed on the side of the soft plate 300 away from the first connecting structure 210 along the thickness direction x, and the limiting portions 222 symmetrically arranged along the width direction y are respectively abutted with the two ends of the soft plate 300 along the width direction y.

[0049] In the embodiment, the pressing portion 221 is pressed on the side of the soft plate 300 away from the first connecting structure 210 along the thickness direction x to realize the fixed connection between the soft plate 300 and the hard plate 100, and the limiting portions 222 symmetrically arranged along the width direction y are respectively abutted with the two ends of the soft plate 300 along the width direction y, so that the displacement of the soft plate 300 along the width direction y is limited by the limiting portions 222, avoiding the displacement of the soft plate 300 along the width direction y when the pressing portion 221 is pressed on the soft plate 300, thereby improving the accuracy of the positional relationship between the soft plate 300 and the hard plate 100 during the connection process.

[0050] Referring to Figure 5 As shown, the height of the groove 110 along the thickness direction x is L1, and the thickness of the soft plate 300 is L2, and L1≥L2 is satisfied.

[0051] In the embodiment, if the height L1 of the groove 110 and the thickness L2 of the soft plate 300 satisfy L1

[0052] Referring to Figure 5 As shown, the limiting portion 222 is arranged along the thickness direction x, the length of the limiting portion 222 along the thickness direction x is L3, and L3>L2 is satisfied.

[0053] In the embodiment, if the length L3 of the limiting portion 222 along the thickness direction x and the thickness L2 of the soft plate 300 along the thickness direction x satisfy L3≤L2, when the second connecting structure 220 is bent relative to the first connecting structure 210 towards the soft plate 300, the limiting portion 222 cannot cover the end of the soft plate 300 along the width direction y, and the pressing portion 221 cannot cover the side of the soft plate 300 along the thickness direction x away from the first connecting structure 210, so that the stability of the connection between the connecting piece 200 and the soft plate 300 is reduced, and further the stability of the connection between the soft plate 300 and the hard plate 100 is reduced. If the length L3 of the limiting portion 222 along the thickness direction x and the thickness L2 of the soft plate 300 along the thickness direction x satisfy L3>L2, when the second connecting structure 220 is bent relative to the first connecting structure 210 towards the soft plate 300, the limiting portion 222 can cover the end of the soft plate 300 along the width direction y, and the pressing portion 221 can cover the side of the soft plate 300 along the thickness direction x away from the first connecting structure 210, so that the connecting piece 200 forms a clamping and fixing state to the soft plate 300, and the stability of the connection between the connecting piece 200 and the soft plate 300 is improved, and further the stability of the connection between the soft plate 300 and the hard plate 100 is improved.

[0054] With continued reference to Figure 5 As shown in FIG. 2, the connecting piece 200 further has a protruding structure 230, which is arranged on the second connecting structure 220 and protrudes from the second connecting structure 220, and the protruding structure 230 is located on the pressing surface of the second connecting structure 220 and the soft plate 300, and is pressed on the soft plate 300.

[0055] In the embodiment, since the protruding structure 230 protrudes from the second connecting structure 220, and the protruding structure 230 is located on the pressing surface of the second connecting structure 220 and the soft plate 300, and is pressed on the soft plate 300, when the second connecting structure 220 is pressed on the soft plate 300, the protruding structure 230 can abut against the soft plate 300 and be embedded in the soft plate 300, so as to improve the stability of the connection between the second connecting structure 220 and the soft plate 300, and avoid the soft plate 300 from moving between the second connecting structure 220 and the hard plate 100.

[0056] With continued reference to ​ As shown in FIG. 2, the protruding structure 230 has a plurality of protruding structures 230, which are distributed on the pressing surface of the second connecting structure 220 and the soft plate 300 along the width direction y, and are pressed on the soft plate 300.

[0057] In the embodiment, since the plurality of protruding structures 230 are distributed on the pressing surface of the second connecting structure 220 and the soft plate 300 in the width direction y, the roughness of the pressing surface of the second connecting structure 220 and the soft plate 300 can be increased by the plurality of protruding structures 230. When the second connecting structure 220 and the soft plate 300 are pressed, the higher the roughness of the pressing surface, the greater the mutual traction between the second connecting structure 220 and the soft plate 300, and the higher the stability of the connecting structure between the second connecting structure 220 and the soft plate 300, and the higher the stability of the connecting structure between the hard plate 100 and the soft plate 300.

[0058] Specifically, in the embodiment, the protection assembly further includes an adhesive layer, and the second connecting structure 220 and the soft plate 300 are bonded by the adhesive layer.

[0059] Specifically, in the embodiment, the adhesive layer has an adhesive structure glue, and the second connecting structure 220 and the soft plate 300 are bonded by the adhesive structure glue in the adhesive layer.

[0060] In the embodiment, after the second connecting structure 220 and the soft plate 300 are pressed, the second connecting structure 220 and the soft plate 300 can be bonded by the adhesive layer, so as to further improve the stability of the connection between the second connecting structure 220 and the soft plate 300, avoid the loosening between the second connecting structure 220 and the soft plate 300, and further improve the connection stability between the soft plate 300 and the hard plate 100.

[0061] The battery related to the embodiment of the application includes the above-mentioned protection assembly.

[0062] In the battery of the application, since the above-mentioned protection assembly can have a relatively thin thickness, the battery of the application can have a relatively thin thickness, so that the battery of the application can meet the demand of the use scene of the ultra-thin battery.

[0063] The use device related to the embodiment of the application includes the above-mentioned protection assembly or the above-mentioned battery.

[0064] Specifically, in some embodiments, the use device of the application includes the above-mentioned protection assembly, and in other embodiments, the use device of the application includes the above-mentioned battery.

[0065] In the use device of the application, since the above-mentioned protection assembly or the above-mentioned battery has a relatively thin thickness, the use device of the application can have a relatively small structure size, so that the use device of the application can meet the demand of the use scene of small size.

[0066] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terms "comprise", "comprising", "include", "including", "contain", "containing" or variations thereof are used inclusively and do not exclude the additional inclusion of unrecited features, structures, materials, or characteristics. In addition, it is understood that the description of the present application is not intended to limit the application to the particular form and embodiment disclosed herein; various modifications, equivalents, and alternatives, etc. of the embodiments described herein can be made by those skilled in the art without departing from the scope of the application.

[0067] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present application, and the ordinary skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A protection assembly, characterized in that, The protection assembly has a thickness direction (x) and a width direction (y), and comprises: a hard plate (100) provided with a groove (110) recessed along the thickness direction (x); a connecting piece (200) comprising a first connecting structure (210) and a second connecting structure (220) connected with the first connecting structure (210), the first connecting structure (210) being welded with the groove wall of the groove (110) along the width direction (y); a soft plate (300) partially arranged in the groove (110) and pressed on the first connecting structure (210), the second connecting structure (220) being bent relative to the first connecting structure (210), the bending direction of the second connecting structure (220) being towards the soft plate (300) and at least partially pressed on one side of the soft plate (300) away from the first connecting structure (210).

2. The protective assembly of claim 1, wherein, The connecting piece (200) has a plurality of connecting pieces (200) symmetrically arranged at both ends of the soft plate (300) along the width direction (y), and the connecting pieces (200) symmetrically arranged along the width direction (y) are connected with both sides of the soft plate (300) along the width direction (y), respectively.

3. The protective assembly of claim 2, wherein, The second connecting structure (220) has a pressing portion (221) and a limiting portion (222), one end of the limiting portion (222) is connected with the pressing portion (221), the other end of the limiting portion (222) is connected with the first connecting structure (210), the pressing portion (221) is pressed on one side of the soft plate (300) away from the first connecting structure (210) along the thickness direction (x), and the limiting portions (222) symmetrically arranged along the width direction (y) are respectively abutted with both ends of the soft plate (300) along the width direction (y).

4. The protective assembly of claim 3, wherein, In the thickness direction (x), the height of the groove (110) is L1, and the thickness of the soft plate (300) is L2, and L1≥L2 is satisfied.

5. The protective assembly of claim 4, wherein, The limiting portion (222) is arranged along the thickness direction (x), and the length of the limiting portion (222) along the width direction (y) is L3, and L3≥L2 is satisfied.

6. The protective assembly of claim 1, wherein, The connecting piece (200) further has a protruding structure (230) arranged on the second connecting structure (220) and protruding from the second connecting structure (220), and the protruding structure (230) is located on the pressing surface of the second connecting structure (220) and the soft plate (300) and is pressed on the soft plate (300).

7. The protective assembly of claim 6, wherein, The protruding structure (230) has a plurality of protruding structures (230) distributed on the pressing surface of the second connecting structure (220) and the soft plate (300) along the width direction (y), and are all pressed on the soft plate (300).

8. The protective assembly of claim 1, wherein, The protection assembly further comprises an adhesive layer, and the second connecting structure (220) is adhered to the soft plate (300) through the adhesive layer.

9. A battery, characterized by Comprising: The protection assembly according to any one of claims 1-8.

10. An electrical device, characterized by Comprising: The protection assembly according to any one of claims 1-8 or the battery according to claim 9.

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