Fixing assembly, circuit board assembly, battery assembly and equipment

Abstract

The utility model discloses a fixing assembly, a circuit board assembly, a battery assembly and equipment. The fixing assembly comprises a fixing piece, a connecting piece and a fastening piece, the fixing piece comprises a first surface extending in the first direction, a mounting hole extending in the second direction is formed in the first surface, and the fastening piece penetrates through the connecting piece and then is inserted into the mounting hole to be fixedly connected with the fixing piece. After the fixing assembly is fixedly connected with the surface of an object, the included angle between the second direction and the horizontal direction ranges from 10 degrees to 80 degrees, the included angle between the extending direction of the threaded connection structure and the direction of the comprehensive acting force is reduced, and therefore the influence of the comprehensive acting force formed by acting force from all directions on the fastening connection structure under the motion working condition is reduced; therefore, the fixed connection reliability of the fixing piece and the connecting piece is higher, looseness is not prone to occurring, and the reliability of the fixing assembly is improved.

Description

Technical Field

[0001] This application relates to the field of battery components, and more specifically, to a fixing component, a circuit board assembly, a battery component, and an apparatus. Background Technology

[0002] Many objects in daily life are in motion, such as bicycles, motorcycles, vehicles, and various objects attached to these devices, such as batteries and seats, which are often in horizontal motion. When an object is in motion and moving horizontally, it may encounter obstacles or potholes, resulting in forces perpendicular to the horizontal plane. When objects in motion need to be connected using connectors, threaded connections are typically used to secure the object and connector in either a horizontal or vertical direction, working together to achieve a fixed connection and structural stability. However, under motion, the object and connector may be subjected to forces of varying intensity from different directions. Horizontally or vertically threaded connections have a probability of loosening under stress, leading to loosening of the fasteners and reducing the safety of the connection between the object and the connector. Utility Model Content

[0003] To address at least one problem existing in the prior art, this application provides a fixing component, a circuit board assembly, a battery assembly, and a device.

[0004] This application provides a switching assembly, characterized in that it includes:

[0005] A fastener, the fastener including a first surface extending along a first direction, the first surface having a mounting hole extending along a second direction, the first direction and the second direction having an included angle;

[0006] A connector is disposed on the first surface, and the connector is provided with a through hole;

[0007] Fasteners, the fasteners being adapted to pass through the through hole and be inserted into the mounting hole and screwed to the fastener;

[0008] The fastener is adapted to be fixedly connected to the surface of the object, and the angle between the second direction and the horizontal direction after the fixed connection is in the range of [10°, 80°].

[0009] In some embodiments, the fastener further includes a mounting surface extending in a third direction and adapted to be fixedly connected to the surface of the object;

[0010] The first direction and the third direction are at an angle α, where 10°≦α≦80°.

[0011] In some embodiments, the first surface and the connector are in surface-to-surface contact.

[0012] In some implementations, the first direction and the second direction are perpendicular.

[0013] In some embodiments, the first surface is provided with a groove, and the connector is disposed in the groove.

[0014] In some embodiments, the connector includes a first end and a second end, the first end being disposed on the first surface, and the second end being adapted to connect to an external device.

[0015] In some embodiments, the first surface is provided with a groove, and the fastener further includes a second surface adjacent to the first surface. The groove extends through the second surface in a first direction, and the first end is disposed in the groove and extends through the second surface.

[0016] In some embodiments, the fastener includes a mounting surface, and the mounting surface, the first end, and the second end are arranged sequentially in a direction perpendicular to the mounting surface; or the second end, the mounting surface, and the first end are arranged sequentially.

[0017] This application also provides a circuit board assembly, including: a circuit board and a fixing component provided in this application, wherein the circuit board includes two opposing sides; the fixing component is fixedly connected to one side of the circuit board.

[0018] In some embodiments, the circuit board is provided with a first connecting portion, and the fastener includes a mounting portion, the mounting portion and the first connecting portion being fixedly connected to make the fastener and the circuit board electrically connected.

[0019] This application also provides a battery assembly, including: a circuit board assembly provided in this application, and a cell assembly, wherein the cell assembly and the circuit board are electrically connected.

[0020] In some embodiments, the battery cell assembly includes a plurality of battery cells, each battery cell having a positive electrode connector and a negative electrode connector;

[0021] The circuit board is provided with a plurality of second connection portions, which are adapted to be electrically connected to the positive electrode connector and the negative electrode connector respectively.

[0022] In some embodiments, the circuit board is provided with a first lead-out hole that penetrates the circuit board along the thickness direction of the circuit board, and the first lead-out hole is correspondingly provided with the positive electrode connector and the negative electrode connector;

[0023] The positive electrode connector and the negative electrode connector are respectively passed through the first lead-out hole and folded over before being welded to the second connecting part.

[0024] In some embodiments, the battery assembly further includes an insulating member, the insulating member having a second lead-out hole corresponding to the first lead-out hole, the insulating member being disposed between the circuit board and the cell assembly, the positive electrode connector and the negative electrode connector passing through the second lead-out hole and the first lead-out hole in sequence and being folded over and welded to the second connecting portion.

[0025] In some embodiments, the fixing component includes at least one first fixing component and at least one second fixing component, wherein the first fixing component and the second fixing component have opposite polarities.

[0026] In some embodiments, the connector includes a first end and a second end remote from the first end. In the height direction of the cell assembly, the first end extends in a direction remote from the cell assembly, and the second end is remote from the cell assembly relative to the first end. The second end is adapted to be electrically connected to a protection board or an external circuit.

[0027] In some embodiments, the cell assembly is disposed on the side of the circuit board away from the fixing assembly.

[0028] This application also provides a device, including the fixing component provided in this application, and / or the circuit board assembly provided in this application, and / or the battery assembly provided in this application.

[0029] The fixing component of this application includes a fixing member, a fastener, and a connector. The fixing member includes a first surface extending along a first direction, and the first surface has a mounting hole extending along a second direction. The fastener passes through the connector and is then inserted into the mounting hole to securely connect with the fixing member. When the fixing component is fixedly connected to the surface of an object, there is an angle of 10° to 80° between the second direction and the horizontal direction. When the object moves on the horizontal plane, it experiences a horizontal force. If it encounters an obstacle, it may generate a force perpendicular to the horizontal direction. By limiting the angle between the second direction and the horizontal plane to [10°, 80°], the influence of the combined force under motion conditions on the fastening connection structure can be reduced to a certain extent, making the fixed connection of the fixing member and the connector more reliable, less prone to loosening, and improving the reliability of the fixing component.

[0030] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0032] Figure 1 This is a schematic diagram of the fixing component of a fastener-simulated slider according to certain embodiments of this application;

[0033] Figure 2 This is an exploded view of the fixed component structure in some embodiments of this application;

[0034] Figure 3 This is an overall schematic diagram of the battery assembly according to certain embodiments of this application;

[0035] Figure 4 This is a partial explosion diagram of a battery assembly according to certain embodiments of this application.

[0036] Explanation of key component symbols:

[0037] 10-Battery assembly; 100-Circuit board; 101-First lead-out hole; 102-Second connecting part; 103-First connecting part;

[0038] 200 - Fastener; 201 - First surface; 2011 - Groove; 202 - Second surface; 203 - Mounting part; 204 - Mounting hole;

[0039] 300 - Connector; 310 - First connector; 320 - Second connector; 301 - First end; 302 - Through hole; 303 - Second end;

[0040] 400 - Battery cell assembly; 410 - Battery cell; 401 - Positive terminal connector; 402 - Negative terminal connector;

[0041] 500 - Insulating component; 501 - Second lead-out hole;

[0042] 600 - Fixed assembly; 700 - Circuit board assembly;

[0043] 20 - Fasteners; 30 - Washers;

[0044] X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0045] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0046] Many objects in daily life are in motion, such as bicycles, motorcycles, vehicles, and various objects attached to these devices, such as batteries and seats, which are often in horizontal motion. When an object is in motion and moving horizontally, it may encounter obstacles or potholes, resulting in forces perpendicular to the horizontal plane. When objects in motion need to be connected using connectors, threaded connections are typically used to secure the object and connector in either a horizontal or vertical direction, working together to achieve a fixed connection and structural stability. However, under motion, the object and connector may be subjected to forces of varying intensity from different directions. Horizontally or vertically threaded connections have a probability of loosening under stress, leading to loosening of the fasteners and reducing the safety of the connection between the object and the connector.

[0047] To address the aforementioned issues, this patent proposes a fixing component for fixed connection to the surface of an object undergoing motion. The fixing component includes a fixing member, a fastener, and a connector. The fixing member includes a first surface extending along a first direction, and a mounting hole extending along a second direction. The connector has a through hole, through which the fastener passes and is inserted into the mounting hole to achieve a screw connection between the fastener and the fixing member. After the fixing component is fixedly connected to the object surface, the angle between the second direction and the horizontal direction is [10°, 80°]. When an object moves on a horizontal plane, it experiences a horizontal force. If it encounters an obstacle, it may generate a force perpendicular to the horizontal direction. By limiting the angle between the second direction and the horizontal plane to [10°, 80°], the influence of the combined forces under motion conditions on the fastening connection structure can be reduced to a certain extent, resulting in higher reliability of the fixed connection between the fixing member and the connector, reducing the likelihood of loosening, and improving the reliability of the fixing component.

[0048] Normally, the surface of an object that is fixedly connected to a fastener is a horizontal plane. Other surfaces that are close to a horizontal plane are also suitable for installing the fastener provided in this application. The direction of travel of the object can be changed to a second direction. The embodiments of this application are only designed for the mounting surface and the first surface for objects that are frequently in horizontal movement. When the object is frequently in other directions, the same effect of preventing screws and fasteners from loosening can be achieved by adjusting the extension direction of the object surface and the mounting hole. No limitation is made here.

[0049] Theoretical analysis shows that when the screw or bolt is vertically oriented, vertical forces have a relatively small impact on the thread structure, while horizontal forces have a relatively large impact. Conversely, when the screw or bolt is horizontally oriented, horizontal forces have a relatively small impact on the thread structure, while vertical forces have a relatively large impact. In other words, when the direction of the force is parallel to the axis of the screw or bolt, vibration has a relatively small impact on the thread structure; when the direction of vibration is perpendicular to the axis of the screw or bolt, the force has a relatively large impact on the thread structure.

[0050] When an object moves horizontally, it is usually subjected to a horizontal force, making it prone to loosening of the threaded fasteners mounted vertically on the object. Similarly, when an object is subjected to an external force perpendicular to the horizontal direction, the threaded fasteners mounted horizontally are also prone to loosening. Horizontally moving objects typically receive a combination of forces from various directions, and the direction of this combined force often forms an angle with both the horizontal and vertical directions.

[0051] The present application provides a fixing component in which the extension direction of the screw or bolt has a certain angle with the horizontal direction, so that the angle between the extension direction of the threaded connection structure and the direction of the combined force is smaller, thereby reducing the influence of vibration from various directions on the fastening connection structure under motion conditions, making the fixing connection of the fixing parts and the connecting parts more reliable, less prone to loosening, and improving the reliability of the fixing component.

[0052] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0053] Please see Figure 1 The fixing component 600 includes a fixing member 200, a connecting member 300, and a fastener 20. The fixing member 200 includes a first surface 201 extending along a first direction X, and a mounting hole 204 extending along a second direction Y. The connecting member 300 includes a through hole 302, through which the fastener 20 passes and is inserted into the mounting hole 204 to be screwed to the fixing member 200. When the fixing component 600 is fixedly connected to the object surface, the angle between the second direction and the horizontal direction is [10°, 80°]. When the object moves horizontally, if it encounters an obstacle and generates a combined force S with a certain angle to the horizontal plane, the angle between the second direction Y and the combined force S is smaller than when the mounting hole is perpendicular to the horizontal direction. In this case, the fixing member 200 and the connecting member 300 in the fixing component 600 are less likely to loosen, improving the reliability and safety of the connection between the object and the connecting member.

[0054] The fastener 200 also includes a mounting portion 203 adapted for fixed connection with the surface of an object. The mounting portion 203 extends toward a third direction Z, and the third direction and the first direction form an angle α, where 10°≦α≦80°.

[0055] In some embodiments, the first direction X and the second direction Y are perpendicular, in which case the nut 21 can fit against the first surface 201, making the screw connection tighter.

[0056] After the mounting part 203 is fixedly connected to the object surface, the mounting part usually extends in a horizontal direction, that is, the object surface extends in a horizontal direction, meaning that the third direction is horizontal at this time. At this time, the angle between the second direction Y and the third direction Z is equal to the difference between 90° and angle α.

[0057] In some embodiments, the first direction X and the second direction Y may not be perpendicular. When the included angle α between the first surface 201 and the mounting part 203 does not meet the requirements of the fixing component 600, when the mounting hole 204 is provided for the fixing member 200, the extension direction of the mounting hole 204 does not have to be perpendicular to the first surface 201. The direction of the mounting hole 204 can be appropriately tilted relative to the first surface 201 so that the included angle with the first surface 201 is less than 90°, and a corresponding fastener 20 is designed to complete the fastening connection between the fixing member 200 and the connector 300.

[0058] This application also includes a circuit board assembly 700, please refer to... Figure 4 The circuit board assembly 700 includes a circuit board 100 and a fixing assembly 600, which is fixed to one side of the circuit board 100.

[0059] The circuit board assembly 700 is typically used in battery assemblies. The battery assembly 10 including the circuit board assembly 700 of this application will be described below with reference to the accompanying drawings.

[0060] Normally, to ensure that the battery components in two- or three-wheeled electric vehicles or other vehicles can be safely powered, the battery components 10 are placed vertically along their height direction, while the circuit board assembly is placed horizontally on top of the cell assembly 400.

[0061] Please see Figure 2 The battery assembly 10 includes a circuit board assembly 700 and a cell assembly 400. The circuit board 100 and the cell assembly 400 are electrically connected, and the cell assembly 400 can supply power to a protection board or an external circuit through the circuit board 100.

[0062] The fastener 200 and the circuit board 100 are fixedly connected on the side away from the cell assembly 400 to achieve electrical connection between the fastener 200 and the circuit board 100, and the fastener 200 includes a first surface 201 facing away from the circuit board 100.

[0063] The connector 300 includes a first end 301 and a second end 303. The second end 303 is adapted to be electrically connected to a protection board or an external circuit. The connector 300 enables the battery cell assembly 400 to be electrically connected to the protection board or an external circuit.

[0064] The first end 301 and the first surface 201 are fixedly connected to make the connector 300 and the fastener 200 electrically connected.

[0065] In some embodiments, referring to 1, the fastener 20 may be a screw, with a through hole at the first end 301 and a mounting hole 204 extending in the second direction Y at the fastener 200. The fastener 20 passes through the through hole and is inserted into the mounting hole 204 and screwed to the mounting hole 204 for fixation. Tightening the fastener 20 will fix the first end 301 and the first surface 201 together.

[0066] When the battery assembly 10 is subjected to vibration or impact forces from multiple directions, the combined force S is formed. The smaller the angle between the direction of the combined force S and the second direction Y, the less likely the combined force S on the fixing component 600 will cause the connection between the fastener 200 and the fixing member 200 to loosen. This makes the fixed connection between the first end 301 and the first surface 201 more reliable and improves the safety performance of the battery assembly 10.

[0067] In some embodiments, the first end 301 is a sheet-like component; see [link to relevant documentation]. Figures 1-4 The first end 301 is a sheet-like component that comes into contact with the first surface 201. This increases the contact area between the first end 301 and the first surface 201, improving the conductivity between the fastener 200 and the connector 300, making their conductivity more stable and reliable.

[0068] In some embodiments, reference Figures 2-4 When the battery cell assembly is placed vertically, the circuit board 100 is placed on top of the battery cell assembly and placed horizontally. The extension direction of the first surface 201, i.e. the first direction X, has an angle α with the horizontal direction. The angle α is preferably selected as 45°. At this time, when the electrical equipment is subjected to forces perpendicular to the horizontal plane and parallel to the horizontal plane, the direction of the combined force is close to parallel with the second direction Y or the angle is smaller, which reduces the impact of the combined force on the fixed connection between the fixing member 200 and the first end face 301, and improves the reliability and stability of the battery assembly.

[0069] In some embodiments, when the fastener 20 passes through the through hole and is inserted into the mounting hole and the fastener to achieve a fixed connection, the first end 301 may be displaced in the circumferential direction of the fastener 20 due to the combined force during the operation of the electrical equipment. In order to avoid the relative displacement between the first end 301 and the first surface 201, a groove 2011 can be provided on the first surface 201. When the first end 301 is provided in the groove, the first end 301 can be prevented from moving in the circumferential direction of the fastener 20.

[0070] In some embodiments, the fastener 200 further includes a second surface 202 adjacent to the first surface 201. A groove 2011 penetrates the second surface 202 in the first direction X. The first end 301 is disposed in the groove 2011 and penetrates the second surface 202. The second surface 202 forms a slot that can hold the first end 301. This can better prevent the first end 301 from shifting around the fastener 20 on the first surface 201, thereby further enhancing the reliability of the battery assembly.

[0071] Furthermore, the groove 2011 can be configured to correspond to the shape of the first end 301 so that the first end 301 is better fixed in the groove 2011.

[0072] When the groove 2011 is provided, the mounting hole 204 can be provided in the groove 2011 to correspond to the fastening of the fastener 20 to the first end 301, which will not be described in detail here.

[0073] In some embodiments, the mounting surface 203, the first end 301, and the second end 303 are arranged sequentially in a direction perpendicular to the mounting surface 203; or the second end 303, the mounting surface 203, and the first end 301 are arranged sequentially. In this embodiment, the circuit board assembly is disposed on top of the cell assembly, and the protection board or external circuit that needs to be connected to the circuit board assembly is disposed on top of the circuit board assembly. In this case, the mounting surface 203, the first end 301, and the second end 303 are arranged sequentially, that is, the second end 303 is disposed on top of the first end 301.

[0074] In some embodiments, if the object to be connected to the second end 303 is below the mounting surface 203, then the second end 303, the mounting surface 203, and the first end 301 are arranged sequentially in the height direction of the mounting surface 203, that is, the connector extends downward.

[0075] In some embodiments, reference Figure 3 and Figure 4The battery assembly 10 also includes a washer 30. The washer 30 has a through hole and is disposed between the fastener 20 and the first end 301. The fastener 20 passes through the through hole and the through hole in sequence and is inserted into the mounting hole 204 to be fixedly connected to the fastener 200. When the fastener 20 is a screw, the fastener usually has a nut 21. The washer 30 is disposed between the nut 21 and the first end 301. During the screwing process of the fastener 20 and the mounting hole 204, the washer 30 will abut between the nut and the first end 301, which will make the screwing connection between the fastener 20 and the fastener 200 more reliable and secure.

[0076] In some embodiments, the battery cell assembly 400 includes a plurality of battery cells 410, each battery cell 410 having a positive electrode connector 401 and a negative electrode connector 402.

[0077] Normally, the positive connector 401 is the positive tab, and the negative connector 402 is the negative tab. The circuit board 100 is provided with multiple first lead-out holes 101 and multiple second connection parts 102. After the positive connector 401 and the negative connector 402 pass through the first lead-out holes 101, they are folded over and electrically connected to the second connection parts 102 respectively. At this time, the positive connector 401 or the negative connector 402 can be fixedly electrically connected to the second connection parts 102 by soldering.

[0078] Multiple battery cells 410 can be connected in series or in parallel through multiple second connection parts 102 on the circuit board 100.

[0079] In some embodiments, the battery assembly 10 further includes an insulator 500 disposed between the circuit board 100 and the cell assembly 400 to isolate the circuit board 100 and the cell assembly 400 and prevent short circuits.

[0080] Please refer to Figure 2 The insulating component 500 is provided with a second lead-out hole 501. Preferably, the second lead-out hole 501 is provided corresponding to the first lead-out hole 101. The positive electrode connector 401 and the negative electrode connector 402 can pass through the second lead-out hole 501 and the first lead-out hole 101 in sequence and then be folded to achieve electrical connection with the second connecting part 102. The function of the insulating component 500 is to isolate the circuit board 100 and the battery cell assembly to prevent short circuit.

[0081] In some embodiments, the circuit board assembly includes a circuit board 100 and a fixing component 600. The circuit board has a first connecting portion 103, and the fixing component 200 has a mounting portion 203. By welding the mounting portion 203 and the first connecting portion 103, a fixed connection between the fixing component 200 and the circuit board 100 can be achieved. It should be noted that the fixing component 200 can be a metal part, that is, it is conductive. The electrical connection between the fixing component 200 and the circuit board can be achieved by welding the first connecting portion 103 and the mounting portion 203. The electrical connection between the connecting component 300 and the first surface 201 can be achieved by the fixed connection between the first end 301 and the first surface 201. That is, the electrical connection between the battery cell assembly 400 and the connecting component 300 can be achieved through the fixing component 200.

[0082] In some embodiments, the circuit board 100 may be an adapter board. In the battery field, adapter boards are typically used to electrically connect multiple battery cells 410, and the multiple battery cells 410 are connected in series or in parallel through the internal wiring of the adapter board. Plating pads on the adapter board can also allow the positive or negative terminals on the adapter board to be led out of the adapter board, thereby enabling the battery cell assembly 400 to charge or discharge externally.

[0083] In some embodiments, the battery assembly 10 includes at least two fixing components 600, namely, the fixing components 600 include a first fixing component 210 and a second fixing component 220. The first fixing component 210 and the second fixing component 220 are fixedly connected to the circuit board 100 and have opposite polarities. The connectors 300 are also correspondingly provided with a first connector 310 and a second connector 320. Both the first connector 310 and the second connector 320 include a first end 301 and a second end 303 away from the first end 301. In the height direction of the cell assembly, the protection board or external circuit is usually located on the circuit board 100. Therefore, the first end 301 extends in a direction away from the cell assembly 400, and the second end 303 is away from the cell assembly 400 relative to the first end 301. The second end 303 is suitable for electrical connection with the protection board or external circuit so that the cell assembly 400 and external devices can meet the charging or discharging needs.

[0084] The external circuit can be a protection board for the battery assembly or other external circuits.

[0085] The screw 20 includes a nut 21 and a stud 22. The connector 300 is disposed between the nut 21 and the first surface 201. The structure of the screw 20 is conventional technology and will not be described in detail here.

[0086] This application also provides a device, which includes a fixing component and / or a battery component provided in any embodiment of this application.

[0087] The device can be a two- or three-wheeled electric vehicle. When the two- or three-wheeled electric vehicle is subjected to impact forces from multiple directions during driving, the battery assembly 10 provided in this application is designed with an angle between the extension direction of the mounting hole 204 and the horizontal plane, so that the fixed connection between the connector 300 and the fixing member 200 is not easy to loosen, thereby improving the reliability of the electrical equipment.

[0088] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A fixing component, characterized in that, include: A fastener, the fastener including a first surface extending along a first direction, the first surface having a mounting hole extending along a second direction, the first direction and the second direction having an included angle; A connector is disposed on the first surface, and the connector is provided with a through hole; Fasteners, the fasteners being adapted to pass through the through hole and be inserted into the mounting hole and screwed to the fastener; The fastener is adapted to be fixedly connected to the surface of the object, and the angle between the second direction and the horizontal direction after the fixed connection is in the range of [10°, 80°].

2. The fixture assembly of claim 1, wherein, The fastener further includes a mounting surface that extends along a third direction and is adapted to be fixedly connected to the surface of the object; The first direction and the third direction are at an angle α, where 10°≦α≦80°.

3. The fixing component according to claim 1, characterized in that, The first surface and the connector are in surface-to-surface contact.

4. The fixture assembly of claim 1, wherein, The first direction and the second direction are perpendicular.

5. The fixture assembly of claim 1, wherein, The first surface is provided with a groove, and the connector is disposed in the groove.

6. The fixture assembly of any one of claims 1-5, wherein, The connector includes a first end and a second end, the first end being disposed on the first surface, and the second end being adapted to connect to an external device.

7. The fixture assembly of claim 6, wherein, The first surface is provided with a groove, and the fastener also includes a second surface adjacent to the first surface. The groove penetrates the second surface in a first direction, and the first end is provided in the groove and penetrates the second surface.

8. The fixing component according to claim 6, characterized in that, The fastener includes a mounting surface, and in a direction perpendicular to the mounting surface, the mounting surface, the first end, and the second end are arranged in sequence; or the second end, the mounting surface, and the first end are arranged in sequence.

9. A circuit board assembly, characterized by include: Circuit board, including opposite sides; And the fixing component according to any one of claims 1-8, wherein the fixing member is fixedly connected to one side of the circuit board.

10. The circuit board assembly according to claim 9, characterized in that, The circuit board is provided with a first connecting part, and the fixing member includes a mounting part. The mounting part and the first connecting part are fixedly connected to make the fixing member and the circuit board electrically connected.

11. A battery assembly, characterized in that, include: The circuit board assembly according to any one of claims 9-10, and the battery cell assembly, wherein the battery cell assembly and the circuit board are electrically connected.

12. The battery assembly of claim 11, wherein, The battery cell assembly includes multiple battery cells, and each battery cell is provided with a positive electrode connector and a negative electrode connector; The circuit board is provided with a plurality of second connection portions, which are adapted to be electrically connected to the positive electrode connector and the negative electrode connector respectively.

13. The battery assembly of claim 12, wherein, The circuit board is provided with a first lead hole that penetrates the circuit board along the thickness direction of the circuit board, and the first lead hole is correspondingly provided with the positive electrode connector and the negative electrode connector; The positive electrode connector and the negative electrode connector are respectively passed through the first lead-out hole and folded over before being welded to the second connecting part.

14. The battery assembly of claim 13, wherein, The battery assembly further includes an insulating component, which has a second lead-out hole corresponding to the first lead-out hole. The insulating component is disposed between the circuit board and the cell assembly. The positive electrode connector and the negative electrode connector pass through the second lead-out hole and the first lead-out hole in sequence and are folded over and then welded to the second connecting part.

15. The battery assembly of claim 11, wherein, The fixing component includes at least one first fixing component and at least one second fixing component, wherein the first fixing component and the second fixing component have opposite polarities.

16. The battery assembly according to claim 11, characterized in that, The connector includes a first end and a second end away from the first end. In the height direction of the cell assembly, the first end extends in a direction away from the cell assembly, and the second end is away from the cell assembly relative to the first end. The second end is adapted to be electrically connected to a protection board or an external circuit.

17. The battery assembly of claim 11, wherein, The battery cell assembly is located on the side of the circuit board away from the fixing assembly.

18. An apparatus, comprising: It includes the fixing component as described in any one of claims 1-8, and / or the circuit board assembly as described in any one of claims 9-10, and / or the battery assembly as described in any one of claims 11-17.

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