Battery charging device

Abstract

The utility model discloses a battery charging device. The battery charging device comprises a base, a first clamping assembly, a second clamping assembly and a charging assembly, the first clamping assembly is arranged at one end, in the preset direction, of the base, the first clamping assembly is provided with a plurality of limiting parts, the limiting parts are arranged in the circumferential direction of a preset circle at intervals and can move in the radial direction of the preset circle so as to limit the periphery, close to the first end, of the cylindrical battery, and the preset circle is arranged on a plane perpendicular to the preset direction; the second clamping assembly is arranged at the other end, in the preset direction, of the base and used for limiting the second end. The charging assembly is arranged on the base and located on the side, away from the second clamping assembly, of the first clamping assembly in the preset direction, the side, facing the first clamping assembly in the preset direction, of the charging assembly is provided with a plurality of electrode parts, and the electrode parts correspond to the positive electrode and the negative electrode of the cylindrical battery respectively. The battery charging device provided by the utility model can be used for charging cylindrical batteries with various shapes and specifications.

Description

Technical Field

[0001] This application relates to the technical field of battery charging, and particularly to a battery charging device. Background Art

[0002] A cylindrical rechargeable battery is a rechargeable cylindrical battery with a limited number of charge cycles. It is usually used in conjunction with a charging device. The advantages of rechargeable batteries are economy, environmental protection, sufficient power, and suitability for high-power and long-term use of electrical appliances. Traditional battery charging devices can usually only charge batteries with a single outer shape specification. Once the outer shape of the battery changes, they are not applicable, resulting in poor versatility and a low user experience. Summary of the Utility Model

[0003] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and provide a battery charging device that can charge cylindrical batteries with multiple outer shape specifications.

[0004] To achieve the above purpose, the technical solution adopted in this application is as follows:

[0005] The battery charging device according to an embodiment of this application is used to charge a cylindrical battery with positive and negative electrodes provided at the same end. The cylindrical battery includes a first end provided with positive and negative electrodes and a second end opposite to the first end. The battery charging device includes: a base; a first clamping assembly provided at one end of the base along a preset direction. The first clamping assembly has a plurality of limiting parts, and the plurality of limiting parts are spaced apart in the circumferential direction of a preset circle and can move along the radial direction of the preset circle to limit the outer circumference of the cylindrical battery near the first end. The preset circle is set in a plane perpendicular to the preset direction; a second clamping assembly provided at the other end of the base along the preset direction for limiting the second end; a charging assembly provided on the base and located on the side of the first clamping assembly away from the second clamping assembly along the preset direction. The charging assembly has a plurality of electrode parts on the side facing the first clamping assembly along the preset direction, and the plurality of electrode parts respectively correspond to the positive and negative electrodes of the cylindrical battery.

[0006] The battery charging device of this application has the following advantages:

[0007] In the above battery charging device, since the multiple electrode parts of the charging component respectively correspond to the positive electrode and the negative electrode of the cylindrical battery, the cylindrical battery can be charged by the charging component. At the same time, during the charging process of the cylindrical battery, the second clamping component can generate a thrust on the second end of the cylindrical battery, so that the second clamping component pushes the cylindrical battery towards the charging component, enabling the positive and negative electrodes of the cylindrical battery to be reliably in contact with the corresponding electrode parts respectively. It is possible to limit and charge cylindrical batteries of different lengths. Meanwhile, the outer periphery of the cylindrical battery near the first end can be limited by the multiple limiting parts of the first clamping component. Further, since each limiting part can move along the radial direction of a preset circle, the first clamping component can limit cylindrical batteries of different diameters. Thus, the above battery charging device can charge cylindrical batteries of various external dimensions, so as to be applicable to cylindrical batteries of different lengths and different diameters.

[0008] According to the battery charging device of the embodiment of the present application, the limiting part is an elastic clamping arm, and the elastic clamping arm can elastically abut against the side surface of the cylindrical battery after the cylindrical battery is inserted into the first clamping component.

[0009] According to the battery charging device of the embodiment of the present application, the first clamping component further includes a clamping seat, the clamping seat is provided with a receiving portion, one end of the receiving portion along the preset direction is provided with a first opening, and a plurality of the elastic clamping arms are arranged around the receiving portion. At least a part of the cylindrical battery passes through the first opening and is arranged in the receiving portion, and is clamped by the plurality of elastic clamping arms.

[0010] According to the battery charging device of the embodiment of the present application, three spaced fixed slots are provided at one end of the clamping seat along the preset direction away from the first opening. The charging component includes a first electrode part and two second electrode parts. The first electrode part and the two second electrode parts respectively pass through one of the fixed slots, and the first electrode part is located between the two second electrode parts. The first end is electrically connected to the first electrode part and one of the second electrode parts.

[0011] According to the battery charging device of the embodiment of the present application, the distances between the second electrode parts and the first electrode part are different.

[0012] According to the battery charging device of the embodiment of the present application, the base is provided with a receiving cavity and a second opening communicating with the receiving cavity. The first clamping component and the charging component are both arranged in the receiving cavity. After the cylindrical battery is inserted into the second opening, it is limited by the plurality of limiting parts and at least partially hidden in the receiving cavity.

[0013] According to the battery charging device of the embodiment of the present application, the second clamping assembly is movably connected to the base and is slidably arranged relative to the base along the preset direction to change the distance from the charging assembly in the preset direction.

[0014] According to the battery charging device of the embodiment of the present application, the second clamping assembly includes an elastic connecting member and a resisting member slidable relative to the base along the preset direction. One end of the elastic connecting member along the preset direction is connected to the resisting member, and the other end of the elastic connecting member along the preset direction is connected to the base or the charging assembly to elastically drive the resisting member to slide along the preset direction towards the charging assembly.

[0015] According to the battery charging device of the embodiment of the present application, the base includes an upper shell and a lower shell connected to the upper shell. A sliding space is provided between the upper shell and the lower shell. The upper shell is also provided with an avoidance opening communicating with the sliding space. At least a part of the resisting member is limited in the sliding space through the avoidance opening and slides in the sliding space along the preset direction.

[0016] According to the battery charging device of the embodiment of the present application, the resisting member has a resisting part and a sliding part connected to the resisting part. The resisting part abuts against the cylindrical battery and at least partially penetrates through the avoidance opening, and the sliding part is limited in the sliding space. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Shows a three-dimensional structural schematic diagram of the battery charging device in the present application;

[0019] Figure 2 Shows a cross-sectional structural schematic diagram of the battery charging device in the present application;

[0020] Figure 3 Shows a connection structural schematic diagram of the first clamping assembly, the second clamping assembly and the charging assembly in the present application;

[0021] Figure 4 Shows a connection structural schematic diagram of the first clamping assembly and the charging assembly in the present application;

[0022] Figure 5Shows a schematic structural view of the second clamping assembly in the present application;

[0023] Figure 6 Shows a three-dimensional sectional structural view of the battery charging device in the present application;

[0024] Figure 7 Shows a schematic structural view of the base in the present application.

[0025] Description of main component symbols:

[0026] 100 - Base; 110 - Accommodating cavity; 120 - Second opening; 130 - Upper shell; 131 - Avoidance opening; 132 - Avoidance groove; 133 - Arc surface; 140 - Lower shell; 141 - Support rib plate; 150 - Sliding space; 160 - Charging port;

[0027] 200 - First clamping assembly; 210 - Limiting part; 220 - Clamping seat; 221 - Accommodating part; 222 - First opening; 223 - Fixed groove; 224 - Avoidance opening;

[0028] 300 - Second clamping assembly; 310 - Elastic connecting piece; 320 - Abutted piece; 321 - Abutting part; 322 - Sliding part;

[0029] 400 - Charging assembly; 410 - First electrode part; 420 - Second electrode part;

[0030] 20 - Cylindrical battery. Detailed description of the specific implementation

[0031] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where 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 by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0032] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0034] In the present application, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0036] Referring to Figure 1 and Figure 2 As shown, the battery charging device involved in the embodiment of the present application is used to charge a cylindrical battery 20 with a positive electrode and a negative electrode provided at the same end. The cylindrical battery 20 includes a first end provided with a positive electrode and a negative electrode and a second end opposite to the first end. The battery charging device includes: a base 100, a first clamping assembly 200, a second clamping assembly 300, and a charging assembly 400.

[0037] Specifically, the first clamping assembly 200 is disposed at one end of the base 100 along a preset direction. The first clamping assembly 200 has a plurality of limiting portions 210, and the plurality of limiting portions 210 are spaced apart in the circumferential direction of a preset circle and can move along the radial direction of the preset circle to limit the outer circumference of the cylindrical battery 20 near the first end. The preset circle is disposed in a plane perpendicular to the preset direction. The second clamping assembly 300 is disposed at the other end of the base 100 along the preset direction for limiting the second end. The charging assembly 400 is disposed on the base 100 and is located on the side of the first clamping assembly 200 away from the second clamping assembly 300 along the preset direction. The side of the charging assembly 400 facing the first clamping assembly 200 along the preset direction has a plurality of electrode portions, and the plurality of electrode portions respectively correspond to the positive and negative electrodes of the cylindrical battery 20.

[0038] It should be noted that the preset direction is Figure 1 the direction indicated by x in

[0039] In the above battery charging device, since the plurality of electrode portions of the charging assembly 400 respectively correspond to the positive and negative electrodes of the cylindrical battery 20, the cylindrical battery 20 can be charged through the charging assembly 400. At the same time, during the charging process of the cylindrical battery 20, the second clamping assembly 300 can generate a thrust on the second end of the cylindrical battery 20, so that the second clamping assembly 300 pushes the cylindrical battery 20 along the preset direction towards the charging assembly 400, so that the positive and negative electrodes of the cylindrical battery 20 can respectively come into reliable contact with the corresponding electrode portions. It is possible to limit and charge cylindrical batteries 20 of different lengths. At the same time, the outer circumference of the cylindrical battery 20 near the first end can be limited by the plurality of limiting portions 210 of the first clamping assembly 200. Further, since each limiting portion 210 can move along the radial direction of the preset circle, the first clamping assembly 200 can limit cylindrical batteries 20 of different diameters. In this way, the above battery charging device can charge cylindrical batteries 20 of various outer shape specifications to be applicable to cylindrical batteries 20 of different lengths and different diameters.

[0040] Refer to Figure 3As shown, the limiting part 210 is an elastic clamping arm. After the cylindrical battery 20 is inserted into the first clamping assembly 200, each elastic clamping arm elastically abuts against the side surface of the cylindrical battery 20. Among them, after the cylindrical battery 20 is inserted, the deformation amount of each elastic clamping arm increases, so that each elastic clamping arm has an elastic potential energy towards the cylindrical battery 20, thereby limiting the cylindrical battery 20 from all around. Among them, "a plurality of limiting parts 210 are arranged at intervals in the circumferential direction of a preset circle" means that a plurality of limiting parts 210 are arranged around the space for installing the cylindrical battery 20 in the first clamping assembly 200, rather than strictly limiting a plurality of limiting parts 210 on a certain circumference. The accompanying drawings of this embodiment show the case where the outer shape of the cylindrical battery 20 is cylindrical, then the preset circle can be. It can be understood that it is a concentric circle of the cylindrical battery 20, and a plurality of limiting parts 210 can be arranged concentrically; in other embodiments, the outer shape of the cylindrical battery 20 can also be square, oval, etc. For such non-cylindrical cylindrical batteries 20, a plurality of limiting parts 210 may not be arranged concentrically. During design, only the positions of the corresponding elastic clamping arms need to be adjusted correspondingly.

[0041] In this embodiment, after the cylindrical battery 20 is inserted into the first clamping assembly 200, each elastic clamping arm elastically abuts against the side surface of the cylindrical battery 20. Therefore, the outer circumference of the cylindrical battery 20 near the first end can be limited by a plurality of elastic clamping arms. At the same time, since each elastic clamping arm has an elastic potential energy towards the cylindrical battery 20, when cylindrical batteries 20 with different diameters are inserted into the first clamping assembly 200, each elastic clamping arm can elastically abut against the side surface of the cylindrical battery 20, so as to limit cylindrical batteries 20 with different diameters and ensure the stability of the cylindrical battery 20 during charging. In this way, the above-mentioned battery charging device can charge cylindrical batteries 20 with different diameters.

[0042] Refer to Figure 3 As shown, the first clamping assembly 200 further includes a clamping seat 220. The clamping seat 220 is provided with a receiving portion 221, that is, the aforementioned "space for installing the cylindrical battery 20 in the first clamping assembly 200". One end of the receiving portion 221 in the preset direction is provided with a first opening 222. A plurality of elastic clamping arms are arranged around the receiving portion 221. At least a part of the cylindrical battery 20 passes through the first opening 222 and is inserted into the receiving portion 221 and is clamped by a plurality of elastic clamping arms.

[0043] Specifically, refer to Figure 3 As shown, in this embodiment, the receiving portion 221 extends in the preset direction.

[0044] In this embodiment, when the cylindrical battery 20 needs to be charged, the cylindrical battery core is pushed along a preset direction towards the accommodating part 221 at the first opening 222, so that at least a part of the cylindrical battery 20 is accommodated in the accommodating part 221. In this way, at least a part of the cylindrical battery 20 can be surrounded by the accommodating part 221 to preliminarily limit the cylindrical battery 20 along its circumferential direction. At the same time, when at least a part of the cylindrical battery 20 is accommodated in the accommodating part 221, it can be clamped by a plurality of elastic clamping arms, and thus the cylindrical battery 20 can be fixed by the elastic clamping arms, so as to improve the stability of the circumferential limit of the cylindrical battery 20 and ensure the stability of the cylindrical battery 20 during the charging process.

[0045] Specifically, referring to Figure 3 As shown, in this embodiment, a plurality of avoidance openings 224 communicating with the inside of the accommodating part 221 are formed on the side wall of the clamping seat 220 along the circumferential direction of the cylindrical battery 20. Each elastic clamping arm is disposed in an avoidance opening 224, so that each elastic clamping arm can swing elastically along the circumferential direction of the cylindrical battery 20, and each elastic clamping arm is integrally formed with the clamping seat 220 to improve the structural stability of the elastic clamping arm.

[0046] Referring to Figure 3 and Figure 4 As shown, at one end of the clamping seat 220 away from the first opening 222 along the preset direction, three fixed slots 223 are provided at intervals. The charging assembly 400 includes a first electrode part 410 and two second electrode parts 420. The first electrode part 410 and the two second electrode parts 420 are respectively inserted into a fixed slot 223, and the first electrode part 410 is located between the two second electrode parts 420. The first end is electrically connected to the first electrode part 410 and one of the second electrode parts 420.

[0047] Specifically, in this embodiment, each fixed slot 223 communicates with the accommodating part 221, and the opening of each fixed slot 223 faces the accommodating part 221, so that a first electrode part 410 and two second electrode parts 420 of the charging assembly 400 all face the accommodating part 221, so as to realize the electrical connection between the charging assembly 400 and the cylindrical battery 20.

[0048] Specifically, in this embodiment, the first electrode part 410 is a positive electrode part, and the positive electrode part contacts the positive electrode of the cylindrical battery 20. The second electrode part 420 is a negative electrode part, and the negative electrode part contacts the negative electrode of the cylindrical battery 20, so as to realize the electrical connection between the charging assembly 400 and the positive and negative electrodes of the cylindrical battery 20.

[0049] In this embodiment, one first electrode part 410 and two second electrode parts 420 of the charging component 400 can be fixed through a plurality of fixing grooves 223. At the same time, when the cylindrical battery 20 is electrically connected to the charging component 400, the charging component 400 can be limited in a preset direction through the clamping seat 220, so as to improve the electrical connection reliability between the charging component 400 and the cylindrical battery 20. When the cylindrical battery 20 is inserted into the accommodating part 221, the first end of the cylindrical battery 20 can be electrically connected to the first electrode part 410 and one of the second electrode parts 420, so as to realize the electrical connection between the charging component 400 and the cylindrical battery 20 and charge the cylindrical battery 20.

[0050] Refer to Figure 4 As shown, the distances between each second electrode part 420 and the first electrode part 410 are different.

[0051] It should be noted that for the cylindrical battery 20 with the positive and negative electrodes at the same end, the distances between the positive and negative electrodes of the cylindrical batteries 20 with different diameters are different.

[0052] In this embodiment, when the cylindrical battery 20 is electrically connected to the charging component 400, the positive electrode of the cylindrical battery 20 can be in contact with the first electrode part 410, and the negative electrode of the cylindrical battery 20 can be in contact with one of the second electrode parts 420. Since the distances between each second electrode part 420 and the first electrode part 410 are different, the negative electrodes of the cylindrical batteries 20 with different diameters can be in contact with different second electrode parts 420, so as to achieve the purpose of charging the cylindrical batteries 20 with different diameters.

[0053] Refer to Figure 2 and Figure 6 As shown, the base 100 is provided with an accommodating cavity 110 and a second opening 120 communicating with the accommodating cavity 110. The first clamping component 200 and the charging component 400 are both arranged in the accommodating cavity 110. After the cylindrical battery 20 is inserted into the second opening 120, it is limited by a plurality of limiting parts 210 and at least partially hidden in the accommodating cavity 110.

[0054] In this embodiment, when charging the cylindrical battery 20, the cylindrical battery 20 can be inserted into the accommodating cavity 110 through the second opening 120, and the cylindrical battery 20 can be clamped by the first clamping component 200 in the accommodating cavity 110, and the cylindrical battery 20 can be charged by the charging component 400 in the accommodating cavity 110. In this process, at least part of the cylindrical battery 20 can be hidden in the accommodating cavity 110 of the base 100. In this way, the cylindrical battery 20 can be prevented from detaching from the above-mentioned battery charging device during charging, so as to further improve the stability of the cylindrical battery 20 during the charging process.

[0055] Refer toFigure 1 and Figure 2 As shown in Figure 2 , the second clamping assembly 300 is movably connected to the base 100 and is slidably arranged relative to the base 100 along a preset direction to change the distance from the charging assembly 400 in the preset direction.

[0056] In this embodiment, the distance between the second clamping assembly 300 and the charging assembly 400 in the preset direction can be changed by sliding the second clamping assembly 300 relative to the base 100 along the preset direction. Thus, for cylindrical batteries 20 of different lengths, the second clamping assembly 300 can abut against the second end of the cylindrical battery 20 and can push the cylindrical battery 20 along the preset direction towards the charging assembly 400 so that the first end of the cylindrical battery 20 abuts against the charging assembly 400, thereby achieving the purpose of charging cylindrical batteries 20 of different lengths.

[0057] Referring to Figure 3 As shown in Figure 3 , the second clamping assembly 300 includes an elastic connecting member 310 and a resisting member 320 that is slidable relative to the base 100 along a preset direction. One end of the elastic connecting member 310 in the preset direction is connected to the resisting member 320, and the other end of the elastic connecting member 310 in the preset direction is connected to the base 100 or the charging assembly 400 to elastically drive the resisting member 320 to slide towards the charging assembly 400 along the preset direction.

[0058] In this embodiment, when the cylindrical battery 20 is charged in the above battery charging device, the second end of the cylindrical battery 20 abuts against the resisting member 320. At this time, the elastic connecting member 310 has elastic potential energy to drive the resisting member 320 to slide towards the charging assembly 400 along the preset direction, which can enhance the connection stability between the resisting member 320 and the first end of the cylindrical battery 20. At the same time, the resisting member 320 can push the cylindrical battery 20 along the preset direction towards the charging assembly 400 and make the first end of the cylindrical battery 20 abut against the charging assembly 400, so that reliable contact is achieved between the cylindrical battery 20 and the charging assembly 400, and the electrical connection stability between the cylindrical battery 20 and the charging assembly 400 is improved.

[0059] Specifically, in some embodiments, the elastic connecting member 310 is a tension spring. One end of the tension spring along the preset direction is connected to the abutting member 320, and the other end of the tension spring along the preset direction is connected to the charging assembly 400. When the second end of the cylindrical battery 20 abuts against the abutting member 320, the tension spring is stretched and has an elastic potential energy to drive the abutting member 320 to slide along the preset direction towards the charging assembly 400, so as to enhance the connection stability between the abutting member 320 and the first end of the cylindrical battery 20. In other embodiments, the elastic connecting member 310 is a compression spring. One end of the compression spring along the preset direction is connected to the abutting member 320, and the other end of the compression spring along the preset direction is connected to the end of the base 100 away from the charging assembly 400. When the second end of the cylindrical battery 20 abuts against the abutting member 320, the compression spring is compressed and has an elastic potential energy to drive the abutting member 320 to slide along the preset direction towards the charging assembly 400, so as to enhance the connection stability between the abutting member 320 and the first end of the cylindrical battery 20.

[0060] Referring to Figure 1 , Figure 2 and Figure 6 As shown, the base 100 includes an upper housing 130 and a lower housing 140 connected to the upper housing 130. A sliding space 150 is provided between the upper housing 130 and the lower housing 140. The upper housing 130 is further provided with an avoidance opening 131 communicating with the sliding space 150. At least part of the abutting member 320 is limited in the sliding space 150 through the avoidance opening 131 and slides in the sliding space 150 along the preset direction.

[0061] In this embodiment, the abutting member 320 can be limited by the sliding space 150 so that the abutting member 320 moves along the preset direction in the sliding space 150. At the same time, at least part of the abutting member 320 can be exposed outside the upper housing 130 through the avoidance opening 131 so that the abutting member 320 can abut against the second end of the cylindrical battery 20, thereby limiting the cylindrical battery 20 in its length direction.

[0062] Specifically, referring to Figure 7 As shown, in this embodiment, the accommodation cavity 110 is located in the upper housing 130, and an avoidance groove 132 extending along the preset direction is provided at a position of the upper housing 130 where the accommodation cavity 110 is not located. The part of the abutting member 320 exposed outside the upper housing 130 is inserted into the avoidance groove 132. The avoidance groove 132 communicates with the second opening 120, so as to facilitate the cylindrical battery 20 to be inserted into the second opening 120 through the avoidance groove 132, and at the same time facilitate the abutting member 320 to slide relative to the base 100 along the preset direction.

[0063] Specifically, referring to Figure 7As shown, in this embodiment, the outer surface of the upper housing 130 at the edge of the avoidance opening 131 is an arc surface 133, which is adapted to the shape of the cylindrical battery 20 to avoid interference with the surface of the cylindrical battery 20, and at the same time can form a better degree of surrounding for the cylindrical battery 20.

[0064] Specifically, as shown in Figure 6 In this embodiment, the lower housing 140 has two support rib plates 141 extending along a preset direction. The two support rib plates 141 are spaced apart and are both spaced from the inner surface of the upper housing 130 to define a sliding space 150 between the two support rib plates 141 and the upper housing 130. In this way, when the abutting member 320 slides in the sliding space 150, both ends of the abutting member 320 can be supported by the two support rib plates 141, and the contact area between the abutting member 320 and the lower housing 140 can be reduced to reduce the friction between the abutting member 320 and the lower housing 140 and improve the sliding smoothness of the abutting member 320 in the sliding space 150.

[0065] Referring to Figure 5 and Figure 6 As shown, the abutting member 320 has an abutting portion 321 and a sliding portion 322 connected to the abutting portion 321. The abutting portion 321 abuts against the cylindrical battery 20 and at least partially passes through the avoidance opening 131, and the sliding portion 322 is limited in the sliding space 150.

[0066] In this embodiment, since the sliding portion 322 slides in the sliding space 150 along a preset direction, the abutting portion 321 can be driven to slide along the preset direction through the sliding portion 322, so that the abutting portion 321 can abut against the second end of the cylindrical battery 20. Further, the cylindrical battery 20 is pushed along the preset direction towards the charging assembly 400 by the abutting member 320 to limit the cylindrical battery 20 between the abutting portion 321 and the charging assembly 400, and improve the contact reliability between the cylindrical battery 20 and the charging assembly 400 and the electrical connection stability between the cylindrical battery 20 and the charging assembly 400.

[0067] Referring to Figure 7 As shown, a charging port 160 is provided near the charging assembly 400 on the base 100, and an external power supply device can be connected through the charging port 160 to supply power to the charging assembly 400, so that the charging assembly 400 can supply power to the cylindrical battery 20.

[0068] Specifically, in this embodiment, the charging port 160 can be a Type-C charging port, a USB charging port, a Lightning charging port, etc.

[0069] Specifically, in some embodiments, the second clamping assembly 300 is made of an insulating material to prevent the formation of an electric current on the second clamping assembly 300 from causing harm to the user.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0071] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A battery charging device for charging a cylindrical battery with a positive electrode and a negative electrode provided at the same end, characterized in that, The cylindrical battery includes a first end provided with a positive electrode and a negative electrode, and a second end opposite to the first end. The battery charging device includes: A base (100); A first clamping assembly (200) provided at one end of the base (100) along a preset direction (x). The first clamping assembly (200) has a plurality of limiting portions (210). The plurality of limiting portions (210) are spaced apart in the circumferential direction of a preset circle and can move along the radial direction of the preset circle to limit the outer circumference of the cylindrical battery near the first end. The preset circle is arranged in a plane perpendicular to the preset direction (x); A second clamping assembly (300) provided at the other end of the base (100) along the preset direction (x) for limiting the second end; A charging assembly (400) provided on the base (100) and located on a side of the first clamping assembly (200) away from the second clamping assembly (300) along the preset direction (x). The charging assembly (400) has a plurality of electrode portions on a side facing the first clamping assembly (200) along the preset direction (x). The plurality of electrode portions respectively correspond to the positive electrode and the negative electrode of the cylindrical battery.

2. The battery charging device according to claim 1, wherein, The limiting portion (210) is an elastic clamping arm, and the elastic clamping arm can elastically abut against the side surface of the cylindrical battery after the cylindrical battery is inserted into the first clamping assembly (200).

3. The battery charging device according to claim 2, characterized in that The first clamping assembly (200) further includes a clamping seat (220). The clamping seat (220) is provided with a receiving portion (221). One end of the receiving portion (221) along the preset direction (x) is provided with a first opening (222). The plurality of elastic clamping arms are arranged around the receiving portion (221). At least a part of the cylindrical battery passes through the first opening (222) into the receiving portion (221) and is clamped by the plurality of elastic clamping arms.

4. The battery charging device according to claim 3, wherein, Three spaced fixed slots (223) are provided at one end of the clamping seat (220) away from the first opening (222) along the preset direction (x). The charging assembly (400) includes a first electrode portion (410) and two second electrode portions (420). The first electrode portion (410) and the two second electrode portions (420) respectively pass through one of the fixed slots (223), and the first electrode portion (410) is located between the two second electrode portions (420). The first end is electrically connected to the first electrode portion (410) and one of the second electrode portions (420).

5. The battery charging device according to claim 4, characterized in that, The distances between each of the second electrode portions (420) and the first electrode portion (410) are different.

6. The battery charging device according to claim 1, characterized in that, The base (100) is provided with a receiving cavity (110) and a second opening (120) communicating with the receiving cavity (110). The first clamping assembly (200) and the charging assembly (400) are both arranged in the receiving cavity (110). After the cylindrical battery is inserted into the second opening (120), it is limited by a plurality of the limiting portions (210) and at least partially hidden in the receiving cavity (110).

7. The battery charging device according to any one of claims 1-6, characterized in that, The second clamping assembly (300) is movably connected to the base (100) and is slidably arranged relative to the base (100) along the preset direction (x) to change the distance from the charging assembly (400) in the preset direction (x).

8. The battery charging device according to claim 7, characterized in that, The second clamping assembly (300) includes an elastic connecting member (310) and a resisting member (320) slidable relative to the base (100) along the preset direction (x). One end of the elastic connecting member (310) along the preset direction (x) is connected to the resisting member (320), and the other end of the elastic connecting member (310) along the preset direction (x) is connected to the base (100) or the charging assembly (400) to elastically drive the resisting member (320) to slide along the preset direction (x) towards the charging assembly (400).

9. The battery charging device according to claim 8, characterized in that, The base (100) includes an upper housing (130) and a lower housing (140) connected to the upper housing (130). A sliding space (150) is provided between the upper housing (130) and the lower housing (140). The upper housing (130) is further provided with an avoidance opening (131) communicating with the sliding space (150). At least a part of the resisting member (320) is limited in the sliding space (150) through the avoidance opening (131) and slides in the sliding space (150) along the preset direction (x).

10. The battery charging device according to claim 9, characterized in that, The resisting member (320) has a resisting portion (321) and a sliding portion (322) connected to the resisting portion (321). The resisting portion (321) abuts against the cylindrical battery and at least partially passes through the avoidance opening (131), and the sliding portion (322) is limited in the sliding space (150).

Images