Battery holder and battery assembly

Abstract

The application discloses a battery seat and a battery assembly. The disclosed battery seat comprises a battery seat body (100), a positive electrode electric connecting piece (200) and a negative electrode electric connecting piece (300). The battery seat body (100) is provided with an accommodating groove (110) for accommodating a battery (400). The bottom wall of the accommodating groove (110) is provided with an adsorbing plane (101). The positive electrode electric connecting piece (200) and the negative electrode electric connecting piece (300) are arranged on the battery seat body (100) and avoid the adsorbing plane (101). The positive electrode electric connecting piece (200) and the negative electrode electric connecting piece (300) are respectively used for electrically connecting with a positive electrode (410) of the battery (400) and a negative electrode of the battery (400). The above scheme can alleviate the problem that the battery seat in the related art wastes production materials and working hours, thereby increasing the production cost.

Description

Technical Field

[0001] This application belongs to the field of battery module design technology, specifically relating to a battery holder and a battery module. Background Technology

[0002] The battery holder is mounted on the circuit board using a surface mount technology, which allows for a denser and more automated placement of the battery holder and other electronic components on the circuit board. To facilitate the suction of the nozzle of the surface mount equipment, a suction cap is designed. During the installation process, the nozzle can indirectly suction the battery holder by cooperating with the suction cap, thereby mounting the battery holder on the circuit board.

[0003] While the aforementioned technology enables the battery holder to be installed on the circuit board, it requires an additional suction cap to cooperate with the nozzle. This means that the suction cap must be installed on the battery holder before installation begins and removed from the battery holder after installation, resulting in wasted production materials and time, and consequently, higher production costs. Utility Model Content

[0004] This utility model discloses a battery holder and battery assembly to alleviate the problem of high production costs caused by the waste of production materials and labor hours in the battery holders involved in related technologies.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: In the first aspect, this application discloses a battery holder, which includes a battery holder body, a positive electrode electrical connector and a negative electrode electrical connector; The battery holder body has a receiving groove for accommodating the battery. The bottom wall of the receiving groove has an adsorption plane. The positive electrode electrical connector and the negative electrode electrical connector are both disposed on the battery holder body and both avoid the adsorption plane. The positive electrode electrical connector and the negative electrode electrical connector are respectively used to make electrical connections with the positive electrode and the negative electrode of the battery.

[0006] Secondly, this application discloses a battery assembly, which includes a battery and the battery holder described above. The battery is disposed in the receiving groove, and the positive electrode connector and the negative electrode connector are electrically connected to the positive electrode and the negative electrode of the battery, respectively.

[0007] The technical solution adopted in this utility model can achieve the following technical effects: The battery holder disclosed in this application improves upon the structure of battery holders in related technologies by providing an adsorption plane on the bottom wall of the receiving groove. Both the positive and negative electrical connectors avoid this adsorption plane. This allows the nozzle of the surface mount equipment to adsorb the battery holder body through the adsorption plane during installation, enabling the battery holder to be moved and mounted on the circuit board. This structure eliminates the need for additional components (such as the adsorption cap described in the background art) connected to the battery holder. The battery holder uses other components to cooperate with the nozzle, reducing material waste and avoiding wasted time removing other components from the battery holder, thus lowering production costs. Attached Figure Description

[0008] Figure 1 This is an exploded structural diagram of the battery assembly disclosed in the embodiments of this application; Figure 2 This is a schematic diagram of the assembled battery holder as disclosed in the embodiments of this application.

[0009] Explanation of reference numerals in the attached figures: 100 - Battery holder body, 110 - Receiving groove, 111 - First slot, 112 - Second slot, 120 - First connecting groove, 130 - Second connecting groove, 140 - Protrusion, 101 - Adsorption surface. 200 - Positive electrode connector, 210 - Second connection part, 211 - Second latch, 220 - First bend, 221 - Second clearance notch, 230 - Second bend, 240 - Second power supply connection part, 250 - Second spring arm. 300 - Negative electrical connector, 310 - Negative electrical connector body, 311 - First spring arm, 312 - First clearance notch, 313 - First power supply connection part, 320 - First connection part, 321 - First buckle, 400 - Battery, 410 - Positive electrode. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0011] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more.

[0012] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0013] Please refer to Figures 1 to 2 This application discloses a battery holder, which includes a battery holder body 100, a positive electrode electrical connector 200, and a negative electrode electrical connector 300.

[0014] The battery holder body 100 is the basic component of the battery holder, providing mounting positions for other components of the battery holder. Both the positive electrode connector 200 and the negative electrode connector 300 are located within the battery holder body 100. Furthermore, the battery holder body 100 also forms functional spaces or structures, such as the receiving groove 110, the first connecting groove 120, the second connecting groove 130, the first locking slot 111, and the second locking slot 112, as described later.

[0015] The battery holder body 100 has a receiving groove 110 for accommodating the battery 400. The bottom wall of the receiving groove 110 has an adsorption plane 101. The positive electrode electrical connector 200 and the negative electrode electrical connector 300 are both disposed on the battery holder body 100 and both avoid the adsorption plane 101. The adsorption plane 101 is used to cooperate with the nozzle of the surface mount equipment, so that the nozzle can be adsorbed on the adsorption plane 101. The battery holder body 100 is adsorbed by the cooperation between the nozzle and the adsorption plane 101, thereby achieving adsorption of the battery holder and enabling the battery holder to be moved and installed on the circuit board. Specifically, the surface mount equipment can install the battery holder onto the circuit board by the cooperation between the nozzle and the adsorption plane 101. The nozzle can cooperate with the adsorption plane 101 by vacuum adsorption, electrostatic adsorption, etc. The circuit board can be a printed circuit board, a rigid-flex circuit board, etc., and this application embodiment does not limit the specific type of circuit board.

[0016] The positive electrode connector 200 and the negative electrode connector 300 are the core components in the battery holder that realize the electrical connection with the battery 400. The positive electrode connector 200 and the negative electrode connector 300 are used to make electrical connections with the positive electrode 410 and the negative electrode of the battery 400, respectively.

[0017] The battery holder disclosed in this application improves upon the structure of battery holders in related technologies by providing an adsorption plane 101 on the bottom wall of the receiving groove 110. Both the positive electrode connector 200 and the negative electrode connector 300 are positioned to avoid the adsorption plane 101. This allows the nozzle of the surface mount equipment to adsorb the battery holder body 100 through the adsorption plane 101 during installation, thereby enabling the battery holder to be moved and mounted on the circuit board. This structure eliminates the need for additional components (such as the adsorption cap described in the background art) connected to the battery holder, allowing the battery holder to interact with the nozzle through other components. This reduces material waste and avoids wasting time removing other components from the battery holder, thus lowering production costs.

[0018] Optionally, the area of ​​the adsorption plane 101 can be greater than or equal to the area of ​​the end face of the adsorption end of the nozzle, so as to facilitate the mating of the nozzle with the adsorption plane 101. In addition, the adsorption plane 101 can be a circular plane, a rectangular plane, etc., and the specific shape of the adsorption plane 101 is not limited in the embodiments of this application.

[0019] Furthermore, the adsorption plane 101 can be distributed near the central area of ​​the bottom wall of the receiving groove 110, or it can be distributed in the central area of ​​the bottom wall of the receiving groove 110, so that the force when the nozzle adsorbs the battery holder body 100 through the adsorption plane 101 is more uniform, thereby enabling the nozzle to adsorb the battery holder body 100 more stably through the adsorption plane 101.

[0020] In a further technical solution, the negative electrode electrical connector 300 may be at least partially disposed in the receiving groove 110, and the negative electrode electrical connector 300 may be connected to the bottom wall of the receiving groove 110. The negative electrode electrical connector 300 may include a negative electrode electrical connector body 310, the first end of which may be disposed in the receiving groove 110 and used to elastically contact the negative electrode, thereby realizing the electrical connection between the negative electrode electrical connector 300 and the negative electrode. Because the first end of the negative electrode electrical connector body 310 can elastically contact the negative electrode, this structure can reduce the risk of separation between the first end of the negative electrode electrical connector body 310 and the negative electrode, thus minimizing the impact on the stability of the connection between the first end of the negative electrode electrical connector body 310 and the negative electrode, thereby improving the stability of the electrical connection between the negative electrode electrical connector 300 and the negative electrode.

[0021] In one embodiment, the negative electrode electrical connection body 310 may include a first elastic arm 311, which may be distributed at the first end of the negative electrode electrical connection body 310. The free end of the first elastic arm 311 may be bent away from the bottom wall of the receiving groove 110 to elastically contact the negative electrode, so as to realize the electrical connection between the negative electrode electrical connector 300 and the negative electrode. The first elastic arm 311 may be provided with a first clearance notch 312 or clearance hole, which may be opposite to the adsorption plane 101, so as to conveniently avoid the adsorption plane 101 and minimize the impact on the adsorption plane 101 of the nozzle.

[0022] In this structure, when the battery 400 is placed in the receiving groove 110, the first elastic arm 311 can undergo a first elastic deformation under the action of the battery 400, thereby at least partially contacting the bottom wall of the receiving groove 110. This helps to reduce the space occupied by the first elastic arm 311 within the receiving groove 110, allowing the battery 400 to be installed more compactly in the receiving groove 110. Of course, when the battery 400 is removed from the receiving groove 110, the first elastic arm 311 can return to its natural state (i.e., a state without deformation due to external force).

[0023] In other embodiments, the negative electrode electrical connection body 310 may also include a spring. The spring may be distributed at the first end of the negative electrode electrical connection body 310 and used to elastically abut against the negative electrode to realize the electrical connection between the negative electrode electrical connection member 300 and the negative electrode. At the same time, the spring may be arranged around the adsorption plane 101 to avoid the adsorption plane 101. The hole formed by the spring serves as an avoidance channel to avoid the suction nozzle from extending into and adsorbing the adsorption plane 101.

[0024] In an optional technical solution, the battery holder body 100 may also have a first connecting groove 120 communicating with the receiving groove 110. The first connecting groove 120 may be provided on the side wall of the receiving groove 110. The negative electrode electrical connection body 310 may also include a first power supply connection part 313. The first power supply connection part 313 may be distributed at the second end of the negative electrode electrical connection body 310. The first power supply connection part 313 may extend through the first connecting groove 120 to the outside of the battery holder body 100 for power supply connection, so as to facilitate power supply connection.

[0025] Specifically, the first power supply connection part 313 is used to electrically connect with the negative terminal connection part on the circuit board, thereby enabling power supply connection to the circuit board. The first power supply connection part 313 can be electrically connected to the negative terminal connection part by means of soldering, plugging, etc. The embodiments of this application do not limit the specific electrical connection method between the first power supply connection part 313 and the negative terminal connection part.

[0026] Furthermore, the negative electrode electrical connector 300 may also include a first connecting portion 320, and the negative electrode electrical connector body 310 may be connected to the first connecting portion 320. The first connecting portion 320 may be disposed in the receiving groove 110, and the bottom wall of the receiving groove 110 may have a first locking groove 111. The first connecting portion 320 and the first locking groove 111 may engage to achieve the connection between the negative electrode electrical connector 300 and the bottom wall of the receiving groove 110. This structure, through the engaging cooperation between the first connecting portion 320 and the first locking groove 111, facilitates the convenient and rapid connection between the negative electrode electrical connector 300 and the bottom wall of the receiving groove 110.

[0027] Specifically, the first connecting part 320 may include a first snap fastener 321, which can engage with the first slot 111 to achieve an engagement between the first connecting part 320 and the first slot 111. Of course, the first connecting part 320 may also be connected to the bottom wall of the receiving groove 110 by means of bonding, welding, or other methods.

[0028] Optionally, the negative electrode electrical connection body 310 and the first connection part 320 can be an integral structure, which simplifies the installation process and facilitates installation. Of course, the negative electrode electrical connection body 310 and the first connection part 320 can also be separate structures, which can be connected by welding, bonding or other methods. This application embodiment does not limit this.

[0029] In the embodiments disclosed in this application, the positive electrode 410 and the negative electrode can be distributed at opposite ends of the battery 400, and the distribution direction of the positive electrode 410 and the negative electrode can be parallel to the orientation of the opening of the receiving groove 110. The negative electrode electrical connector 300 can be at least partially disposed in the receiving groove 110 and can be connected to the bottom wall of the receiving groove 110. When the battery 400 is disposed in the receiving groove 110, the positive electrode 410 can face the opening of the receiving groove 110, that is, the positive electrode 410 can be opposite to the bottom wall of the receiving groove 110, and the negative electrode can face the bottom wall of the receiving groove 110, that is, the negative electrode can be opposite to the bottom wall of the receiving groove 110. The positive electrode electrical connector 200 can elastically abut against the positive electrode 410 to realize the electrical connection between the positive electrode electrical connector 200 and the positive electrode 410. At the same time, the elastic abutment of the positive electrode electrical connector 200 against the positive electrode 410 can press the battery against the bottom wall of the receiving groove 110, so that the battery 400 can press the negative electrode electrical connector 300 at least partially against the bottom wall of the receiving groove 110 through the negative electrode to realize the electrical connection between the negative electrode electrical connector 300 and the negative electrode.

[0030] In this structure, the positive electrode connector 200 elastically abuts against the positive electrode 410 to achieve a relatively stable electrical connection between the positive electrode connector 200 and the positive electrode 410. At the same time, the positive electrode connector 200 can press the battery against the bottom wall of the receiving groove 110, thereby also achieving a relatively stable electrical connection between the negative electrode connector 300 and the negative electrode. This allows the positive electrode connector 200 and the negative electrode connector 300 to be stably connected to the positive electrode 410 and the negative electrode of the battery 400, respectively, and allows the battery 400 to be stably installed in the receiving groove 110.

[0031] Furthermore, when the negative electrode electrical connector 300 includes a negative electrode electrical connector body 310, the negative electrode electrical connector body 310 includes a first elastic arm 311, and the battery 400 is disposed in the receiving groove 110, the positive electrode electrical connector 200 elastically abuts against the positive electrode 410, which can press the battery against the bottom wall of the receiving groove 110. This allows the battery 400 to press the first elastic arm 311 against the bottom wall of the receiving groove 110 through the negative electrode, so that the first elastic arm 311 can elastically abut against the negative electrode relatively stably, thereby achieving a relatively stable electrical connection between the negative electrode electrical connector 300 and the negative electrode.

[0032] In one feasible technical solution, the positive electrode electrical connector 200 may be at least partially disposed in the receiving groove 110. The positive electrode electrical connector 200 may include a second connecting portion 210, a first bending portion 220 and a second bending portion 230 connected in sequence, that is, the second connecting portion 210 may be indirectly connected to the second bending portion 230 through the first bending portion 220.

[0033] The second connecting portion 210 can be distributed at the first end of the positive electrode connector 200, and the second connecting portion 210 can be connected to the bottom wall of the receiving groove 110. The first bending portion 220 can be distributed at the second end of the positive electrode connector 200 and can protrude from the side wall of the receiving groove 110. The first bending portion 220 can be located at the opening of the receiving groove 110. The first bending portion 220 can be provided with a second clearance notch 221, which is used to avoid the battery 400. The second bending portion 230 can protrude from the side of the first bending portion 220 away from the bottom wall of the receiving groove 110 and can be opposite to the second clearance notch 221.

[0034] When the battery 400 is disposed in the receiving groove 110, the second clearance notch 221 can avoid the battery 400, so as to minimize the impact on the contact between the second bend 230 and the positive electrode 410. The second bend 230 can elastically abut against the positive electrode 410, so that the positive electrode electrical connector 200 can elastically abut against the positive electrode 410, thereby realizing the electrical connection between the positive electrode electrical connector 200 and the positive electrode 410. In this structure, since the second bend 230 can elastically abut against the positive electrode 410, the positive electrode electrical connector 200 can elastically abut against the positive electrode 410 more stably, which helps to improve the stability of the electrical connection between the positive electrode electrical connector 200 and the positive electrode 410.

[0035] Furthermore, in this structure, since the second bend 230 protrudes from the side of the first bend 220 away from the bottom wall of the receiving groove 110, when the battery 400 is installed into the receiving groove 110, the second bend 230 can guide the battery 400 to slide along the second bend 230, so that the battery 400 can slide between the second bend 230 and the bottom wall of the receiving groove 110, thereby making it easier to install the battery 400 into the receiving groove 110.

[0036] Optionally, the second connecting portion 210, the first bending portion 220, and the second bending portion 230 can be an integral structure, which simplifies the installation process and facilitates installation. Of course, the second connecting portion 210, the first bending portion 220, and the second bending portion 230 can also be separate structures. The second connecting portion 210 and the first bending portion 220, as well as the first bending portion 220 and the second bending portion 230, can be connected by welding, bonding, or other methods. This application embodiment does not impose any limitations on this.

[0037] Furthermore, the second connecting portion 210 may include a second snap fastener 211, and the bottom wall of the receiving groove 110 may also have a second slot 112. The second snap fastener 211 can engage with the second slot 112 to achieve the connection between the second connecting portion 210 and the bottom wall of the receiving groove 110, thereby achieving the connection between the positive electrode electrical connector 200 and the bottom wall of the receiving groove 110. This structure, through the snap-fit ​​engagement between the positive electrode electrical connector 200 and the second slot 112, can conveniently and quickly achieve the connection between the positive electrode electrical connector 200 and the bottom wall of the receiving groove 110. Of course, the second connecting portion 210 can also be connected to the bottom wall of the receiving groove 110 by means of bonding, welding, etc., to achieve the connection between the positive electrode electrical connector 200 and the bottom wall of the receiving groove 110.

[0038] To ensure a more stable installation of the battery 400 in the receiving groove 110, at least one protrusion 140 may be provided on the side wall of the receiving groove 110. The protrusion 140 may be located within the receiving groove 110 and at its opening. When the battery 400 is placed in the receiving groove 110, the protrusion 140 may abut against the positive electrode 410, further pressing the battery against the bottom wall of the receiving groove 110. This allows the negative electrode connector 300 to be more stably connected to the negative electrode, further reducing the risk of the battery 400 detaching from the receiving groove 110 and ensuring a more stable installation of the battery 400 within the receiving groove 110. It should be noted that the protrusion 140 and the battery 400 may be insulated from each other.

[0039] To further improve the stability of the battery 400 installed in the receiving groove 110, the positive electrode electrical connector 200 may also include a second elastic arm 250 disposed in the receiving groove 110, the second elastic arm 250 protruding from the side wall of the receiving groove 110. When the battery 400 is disposed in the receiving groove 110, the second elastic arm 250 can undergo a second elastic deformation, allowing the second elastic arm 250 to elastically abut against the battery 400, thereby pressing the battery 400 against the portion of the side wall of the receiving groove 110 opposite to the second elastic arm 250, thus clamping the battery 400 between the second elastic arm 250 and the portion of the side wall of the receiving groove 110, further reducing the risk of the battery 400 detaching from the receiving groove 110, and thus further improving the stability of the battery 400 installed in the receiving groove 110. Furthermore, when the battery 400 is removed from the receiving groove 110, the second elastic arm 250 can return to its natural state (i.e., a state without deformation due to external force).

[0040] Optionally, there may be multiple second spring arms 250 to more stably press the battery 400 against the portion of the sidewall of the receiving groove 110 opposite to the second spring arms 250.

[0041] In one embodiment, the battery holder body 100 may also have a second connecting groove 130 communicating with the receiving groove 110. The second connecting groove 130 may be provided on the side wall of the receiving groove 110. The positive electrode electrical connector 200 may also include a second power supply connection portion 240. The second power supply connection portion 240 may be distributed at the first end of the positive electrode electrical connector 200. The second power supply connection portion 240 may extend through the second connecting groove 130 to the outside of the battery holder body 100 for power supply connection, so as to facilitate power supply connection.

[0042] Specifically, the second power supply connection portion 240 is used to electrically connect to the positive terminal contact portion on the circuit board, thereby enabling power supply to the circuit board. The second power supply connection portion 240 can be electrically connected to the positive terminal contact portion by means of soldering, plugging, etc. This embodiment does not limit the specific electrical connection method between the second power supply connection portion 240 and the positive terminal contact portion. Furthermore, when the battery holder body 100 has a first connection slot 120 and a second connection slot 130, the first connection slot 120 and the second connection slot 130 can be relatively distributed for layout purposes.

[0043] Furthermore, when the first power supply connection 313 is electrically connected to the negative terminal connection, the second power supply connection 240 is electrically connected to the positive terminal connection, and the positive terminal connection 200 and the negative terminal connection 300 are electrically connected to the positive terminal 410 and the negative terminal of the battery 400, respectively, the battery 400 can supply power to the circuit board.

[0044] To reduce the area occupied by the battery holder on the circuit board, the thickness of the sidewall of the receiving groove 110 can be reduced, thereby reducing the cross-sectional area of ​​the battery holder body 100, which in turn helps to reduce the area occupied by the battery holder on the circuit board. Specifically, the thickness direction of the sidewall of the receiving groove 110 can be perpendicular to the opening direction of the receiving groove 110, the cross-section of the battery holder body 100 can be perpendicular to the opening direction of the receiving groove 110, and the layout surface of the circuit board can be perpendicular to the opening direction of the receiving groove 110.

[0045] Based on the battery holder disclosed in the embodiments of this application, this application further discloses a battery assembly. The disclosed battery assembly includes a battery 400 and a battery holder as described in any of the above embodiments. The battery 400 is disposed in a receiving groove 110, and a positive electrode electrical connector 200 and a negative electrode electrical connector 300 are respectively electrically connected to the positive electrode 410 and the negative electrode of the battery 400. Specifically, the battery 400 may be a button battery, and this application does not limit the specific type of battery 400.

[0046] The above embodiments of this utility model focus on describing the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0047] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A battery holder, characterized in that, It includes a battery holder body (100), a positive electrical connector (200), and a negative electrical connector (300). The battery holder body (100) has a receiving groove (110) for accommodating the battery (400). The bottom wall of the receiving groove (110) has an adsorption plane (101). The positive electrode electrical connector (200) and the negative electrode electrical connector (300) are both provided on the battery holder body (100) and both avoid the adsorption plane (101). The positive electrode electrical connector (200) and the negative electrode electrical connector (300) are respectively used to make electrical connections with the positive electrode (410) and the negative electrode of the battery (400).

2. The battery holder according to claim 1, characterized in that, The negative electrode electrical connector (300) is at least partially disposed in the receiving groove (110) and connected to the bottom wall of the receiving groove (110). The negative electrode electrical connector (300) includes a negative electrode electrical connector body (310). The first end of the negative electrode electrical connector body (310) is disposed in the receiving groove (110) and is used to elastically abut against the negative electrode to realize the electrical connection between the negative electrode electrical connector (300) and the negative electrode.

3. The battery holder according to claim 2, characterized in that, The negative electrode electrical connection body (310) includes a first elastic arm (311), which is distributed at the first end of the negative electrode electrical connection body (310). The free end of the first elastic arm (311) is bent away from the bottom wall of the receiving groove (110) to elastically abut against the negative electrode. The first elastic arm (311) is provided with a first clearance notch (312) or clearance hole, which is opposite to the adsorption plane (101).

4. The battery holder according to claim 2, characterized in that, The battery holder body (100) is also provided with a first connecting groove (120) communicating with the receiving groove (110). The negative electrode electrical connection body (310) also includes a first power supply connection part (313). The first power supply connection part (313) is distributed at the second end of the negative electrode electrical connection body (310). The first power supply connection part (313) extends through the first connecting groove (120) to the outside of the battery holder body (100) for power supply connection.

5. The battery holder according to claim 2, characterized in that, The negative electrode electrical connector (300) further includes a first connecting part (320), the negative electrode electrical connector body (310) is connected to the first connecting part (320), the first connecting part (320) is disposed in the receiving groove (110), the bottom wall of the receiving groove (110) is provided with a first slot (111), and the first connecting part (320) is engaged with the first slot (111).

6. The battery holder according to claim 1, characterized in that, The positive electrode (410) and the negative electrode are distributed at opposite ends of the battery (400), and the negative electrode electrical connector (300) is at least partially disposed in the receiving groove (110) and connected to the bottom wall of the receiving groove (110); When the battery (400) is placed in the receiving groove (110), the positive electrode (410) faces the opening of the receiving groove (110), the negative electrode faces the bottom wall of the receiving groove (110), and the positive electrode electrical connector (200) elastically abuts against the positive electrode (410) to realize the electrical connection between the positive electrode electrical connector (200) and the positive electrode (410), and the battery (400) presses the negative electrode electrical connector (300) at least partially against the bottom wall of the receiving groove (110) through the negative electrode to realize the electrical connection between the negative electrode electrical connector (300) and the negative electrode.

7. The battery holder according to claim 6, characterized in that, The positive electrode electrical connector (200) is at least partially disposed in the receiving groove (110), and the positive electrode electrical connector (200) includes a second connecting portion (210), a first bending portion (220) and a second bending portion (230) connected in sequence. The second connecting portion (210) is distributed at the first end of the positive electrode connector (200) and connected to the bottom wall of the receiving groove (110). The first bending portion (220) is distributed at the second end of the positive electrode connector (200) and protrudes from the side wall of the receiving groove (110). The first bending portion (220) is provided with a second clearance notch (221). The second bending portion (230) protrudes from the side of the first bending portion (220) away from the bottom wall of the receiving groove (110) and is opposite to the second clearance notch (221). When the battery (400) is placed in the receiving groove (110), the second clearance notch (221) avoids the battery (400), and the second bend (230) elastically abuts against the positive electrode (410).

8. The battery holder according to claim 7, characterized in that, The battery holder body (100) is also provided with a second connecting groove (130) communicating with the receiving groove (110). The positive electrode electrical connector (200) also includes a second power supply connection part (240). The second power supply connection part (240) is distributed at the first end of the positive electrode electrical connector (200). The second power supply connection part (240) extends through the second connecting groove (130) to the outside of the battery holder body (100) for power supply connection.

9. The battery holder according to claim 6, characterized in that, The positive electrode electrical connector (200) also includes a second spring arm (250) disposed in the receiving groove (110), the second spring arm (250) protruding from the side wall of the receiving groove (110); When the battery (400) is disposed in the receiving groove (110), the second elastic arm (250) elastically abuts against the battery (400) to press the battery (400) against the portion of the sidewall of the receiving groove (110) opposite to the second elastic arm (250).

10. A battery assembly, characterized in that, Includes a battery (400) and a battery holder according to any one of claims 1 to 9, wherein the battery (400) is disposed in the receiving groove (110), and the positive electrode electrical connector (200) and the negative electrode electrical connector (300) are respectively electrically connected to the positive electrode (410) and the negative electrode of the battery (400).

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