Battery and electric equipment

Abstract

The utility model relates to a battery and electric equipment, the battery comprises a battery cell, the battery cell comprises a shell and a positive pole, the end face of the shell is provided with an opening, and the positive pole extends out of the shell from the opening; a containing space is formed in the sleeving shell, the sleeving shell is arranged on the outer shell in a sleeving mode and makes partial contact with the outer shell, and the positive pole is located in the containing space; the supporting frame is fixedly installed on the sleeving shell, and a fixing part and a through hole are formed in the supporting frame; the positive terminal is fixedly mounted on the fixing part and comprises a connecting piece, and the connecting piece penetrates through the through hole and is used for being electrically connected with the positive pole. Through the technical scheme, the battery provided by the utility model can improve the self energy density and reduce the manufacturing cost.

Description

Technical Field

[0001] The present disclosure relates to the field of battery technology, and in particular, to a battery and an electrical device. Background Art

[0002] In a rechargeable battery, the battery cell body is usually sleeved in a metal sleeve, and the positive electrode guide pin and the negative electrode guide pin are led out in the same direction from the same end of the battery cell body. The negative electrode guide pin is electrically connected to the metal sleeve through the negative electrode sheet, and the positive electrode guide pin and the negative electrode guide pin are electrically connected to the USB plug assembly respectively. With this arrangement, the bottom of the metal sleeve is the negative electrode of the rechargeable battery, and the positive electrode of the rechargeable battery is arranged on the top of the metal sleeve. In this way, the required size of the metal sleeve is longer, which will lead to higher battery costs. In addition, the metal sleeve is sleeved on the outside of the battery cell body, which increases the radial size of the battery, affecting the battery energy density. Utility Model Content

[0003] The purpose of the present disclosure is to provide a battery and an electrical device that can improve the battery energy density and reduce the manufacturing cost.

[0004] In order to achieve the above object, the present disclosure provides a battery, the battery comprising:

[0005] A battery cell, the battery cell comprising a shell and a positive electrode column, the end surface of the shell being provided with an opening so that the positive electrode column can extend from the opening to the outside of the shell;

[0006] A sleeve shell, the sleeve shell is formed with a receiving space, and is sleeved on the outer shell and is in conductive contact with the outer shell, the sleeve shell is used as a negative electrode output terminal, and the positive electrode column is located in the receiving space; and

[0007] A positive terminal is mounted on the casing and insulated from the casing, and is electrically connected to the positive electrode post.

[0008] Optionally, the battery further includes a circuit board, and the circuit board is arranged in the accommodation space.

[0009] The suit shell is provided with an opening, the circuit board is provided with a charging interface, and the charging interface is exposed outside the suit shell through the opening.

[0010] Optionally, the positive electrode and the negative electrode of the circuit board are electrically connected to the positive electrode column and the casing respectively, and the positive terminal is connected to the positive electrode of the circuit board.

[0011] Optionally, the inner wall of the housing is connected with a lead-out piece, and the lead-out piece is attached to the circuit board and connected by welding.

[0012] Optionally, the lead-out piece is formed in the housing by stamping.

[0013] Optionally, an annular contact surface is formed on the outer peripheral wall of the shell, the annular contact surface is connected to the end surface, and the sleeve shell is in conductive contact with the annular contact surface.

[0014] Optionally, the outer shell includes a main body and a connecting concave ring, the connecting concave ring is recessed inward from the main body and a stop surface is formed between the main body, the inner wall of the sleeve shell is formed with a connecting protrusion, the end of the sleeve shell stops at the stop surface, and the connecting protrusion is interference fit in the connecting concave ring and is stopped in the connecting concave ring through the stop surface and the annular contact surface.

[0015] Optionally, the battery further comprises a support frame, which is fixedly mounted on the casing and has a fixing portion and a through hole; the positive terminal is fixedly mounted on the fixing portion and comprises a connecting piece, which passes through the through hole for electrical connection with the positive electrode column.

[0016] Optionally, the support frame includes a support body and a support platform, the support platform protrudes from the support body in a radial direction of the support body, and the support platform abuts against an end surface of the sleeve shell.

[0017] Optionally, the support frame is provided with a positioning protrusion, which extends from the support platform along the axial direction of the support body, and the sleeve shell is provided with a positioning groove, which is recessed from the end face of the sleeve shell along the axial direction of the sleeve shell, and the positioning protrusion is inserted into the positioning groove.

[0018] Optionally, the support body is connected to the circuit board via a snap-fit ​​structure, the snap-fit ​​structure includes a snap-fit ​​portion and a snap-fit ​​groove that cooperate with each other, one of the support body and the circuit board is provided with the snap-fit ​​portion, and the other is provided with the snap-fit ​​groove.

[0019] Optionally, the support body is formed with a clamping portion, the clamping portion is configured as an L-shaped block, the L-shaped block comprises a first block and a second block, the first block is connected to the support body and extends along the axial direction of the support body, the second block is connected to the first block and is formed with a stop surface,

[0020] The circuit board is provided with a clamping groove, which is recessed inward from the edge of the circuit board. The L-shaped block is inserted into the clamping groove, and the stop surface is in contact with the circuit board to support the circuit board.

[0021] Optionally, the support frame is configured as an insulating member.

[0022] Optionally, the positive terminal includes an end cover and a plug-in piece, the plug-in piece is connected to the end cover, the fixing portion is configured as a plug-in slot, the end cover is covered on the support frame, and the plug-in piece is plugged into the plug-in slot.

[0023] Optionally, the connecting piece is connected to the end cover and is spaced apart from the plug-in piece, the circuit board is provided with a connecting socket, the connecting piece is inserted into the connecting socket and is in conductive contact with a wall surface of the connecting socket.

[0024] Optionally, the connecting sheet includes a sheet-like body and a bending portion, the sheet-like body is connected to the end cover, the bending portion is bent from the end of the sheet-like body toward the end cover, and the sheet-like body and the bending portion are respectively in conductive contact with two wall surfaces opposite to the connecting socket and are welded together.

[0025] Optionally, the battery includes a conductive connector, the circuit board is provided with a mounting hole, the conductive connector is fixed in the mounting hole, and the positive electrode column passes through the conductive connector and is in conductive contact with the conductive connector.

[0026] Optionally, the conductive connector includes a hollow body, an overlapping flange and a limiting flange, the hollow body forms a channel for the positive electrode column to pass through, the overlapping flange and the limiting flange are respectively formed at two opposite ends of the hollow body and are bent away from the hollow body.

[0027] The hollow body is arranged in the mounting hole, and the overlapping flange and the limiting flange are overlapped on two opposite surfaces of the circuit board respectively.

[0028] According to a second aspect of the present disclosure, there is provided an electrical device, the electrical device comprising the above-mentioned battery.

[0029] Through the above technical scheme, in the battery provided by the present invention, the battery cell includes an outer shell and a positive electrode post extending out of the outer shell, the casing is partially in contact with the outer shell, and the positive terminal is installed on the casing, and is electrically connected to the positive electrode post while being insulated from the casing. Among them, the battery cell provided by the present invention uses the outer shell as a whole as the negative electrode, so that the casing in conductive contact with the outer shell serves as the negative electrode output terminal of the battery, so that when the positive electrode post of the battery cell is connected to other components of the battery, the negative electrode of the battery cell can be connected to the component through the casing, that is, the casing can be installed at one end of the battery cell casing close to the positive electrode post, thereby facilitating the component to be connected to the positive electrode post of the battery cell and the negative electrode of the battery cell at the same time, and at the same time, the size of the casing can be shortened to reduce the production cost of the battery. In addition, the casing is arranged at one end of the battery cell casing, which can also reduce the radial size of the battery and improve the energy density of the battery.

[0030] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0032] Figure 1 is a schematic diagram of the structure of a battery provided by the present disclosure;

[0033] Figure 2 is an exploded schematic diagram of a battery provided by the present disclosure;

[0034] Figure 3 is a schematic cross-sectional view of a battery provided by the present disclosure;

[0035] Figure 4 is another cross-sectional schematic diagram of a battery provided by the present disclosure;

[0036] Figure 5 is another cross-sectional schematic diagram of a battery provided by the present disclosure;

[0037] Figure 6 is a schematic diagram of the structure of the housing in the battery provided by the present disclosure;

[0038] Figure 7 is a schematic structural diagram of a support frame in a battery provided by the present disclosure;

[0039] Figure 8 is a schematic diagram of the structure of a circuit board in a battery provided by the present disclosure;

[0040] Fig. 9 It is a schematic diagram of the structure of the circuit board and the support frame in the battery provided by the present disclosure;

[0041] Fig.10 is a schematic structural diagram of a positive terminal in a battery provided by the present disclosure;

[0042] Fig.11 It is a schematic diagram of the structure of the conductive connector in the battery provided by the present invention.

[0043] Description of Reference Numerals

[0044] 1. Battery cell; 11. Shell; 111. Annular contact surface; 112. Main body; 113. Connecting concave ring; 114. Stop surface; 12. Positive pole; 2. Set shell; 21. Accommodating space; 22. Connecting protrusion; 23. Lead-out piece; 231. Connecting hole; 24. Positioning groove; 3. Circuit board; 31. Snap-in groove; 32. Connecting socket; 4. Support frame; 41. Fixing part; 411. Plug-in groove; 42 , through hole; 43, supporting body; 44, supporting platform; 45, positioning protrusion; 46, clamping part; 461, first block; 462, second block; 463, stop surface; 5, positive terminal; 51, connecting piece; 511, sheet body; 512, bending part; 52, end cover; 53, plug-in piece; 6, charging interface; 7, conductive connector; 71, hollow body; 72, overlapping flange; 73, limiting flange. DETAILED DESCRIPTION

[0045] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0046] In the present disclosure, unless otherwise specified, the directional words used, such as "inside" and "outside", are "inside" and "outside" relative to the corresponding component's own outline. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0047] In the related art, the battery cell includes a positive electrode post and a negative electrode post, and the positive electrode post and the negative electrode post need to be connected to other components in the battery at the same time, such as a circuit board, a plug assembly, etc. Normally, the positive electrode post is connected to the circuit board and are jointly arranged at one end of the battery cell, and the negative electrode post is connected to the circuit board through a negative electrode patch, or is connected to the circuit board through a steel shell mounted on the outside of the battery cell shell.

[0048] In the exemplary embodiments of the present disclosure, reference is made to Figures 1 to 11 As shown, a battery is provided, the battery comprising: a battery cell 1, a casing 2 and a positive terminal 5, the battery cell 1 comprising a casing 11 and a positive pole post 12, the end surface of the casing 11 is provided with an opening, so that the positive pole post 12 can extend from the opening to the outside of the casing 11; the casing 2 is formed with a receiving space 21, and is sleeved on the casing 11 and is in conductive contact with the casing 11, the casing 2 is used as a negative output terminal, and the positive pole post 12 is located in the receiving space 21; the positive terminal 5 is installed in the casing 2 and is insulated from the casing 2, and the positive terminal 5 is electrically connected to the positive pole post 12.

[0049] Through the above technical scheme, in the battery provided by the present disclosure, the battery cell 1 includes a shell 11 and a positive electrode column 12 extending out of the shell 11, the casing 2 is partially in contact with the shell 11, and the positive terminal 5 is installed on the casing 2, and is electrically connected to the positive electrode column 12 while being insulated from the casing 2, wherein the battery cell 1 provided by the present disclosure uses the shell 11 as a whole as the negative electrode, so that the casing 2 in conductive contact with the shell 11 serves as the negative electrode output terminal of the battery, so that when the positive electrode column 12 of the battery cell 1 is connected to other components of the battery, the negative electrode of the battery cell 1 can be connected to the component through the casing 2, that is, the casing 2 can be installed at one end of the shell 11 of the battery cell 1 close to the positive electrode column 12, thereby facilitating the component to be connected to the positive electrode column 12 of the battery cell 1 and the negative electrode of the battery cell 1 at the same time, and at the same time, the size of the casing 2 can be shortened to reduce the production cost of the battery, and in addition, the casing 2 is arranged at one end of the shell 11 of the battery cell 1, which can also reduce the radial size of the battery and improve the energy density of the battery.

[0050] In the battery provided in the present disclosure, as an exemplary embodiment, reference is made to Figure 2 and Figure 3 As shown in , the battery may further include a circuit board 3, the circuit board 3 may be arranged in the accommodating space 21, the suit shell 2 may be provided with an opening, the circuit board 3 may be provided with a charging interface 6, and the charging interface 6 is exposed to the outside of the suit shell 2 through the opening, so that an external power source can charge the battery through the charging interface 6 and the circuit board 3. In addition, the charging interface 6 may also be provided in any suitable form to achieve the purpose of charging the battery through the charging interface 6, such as a USB interface, a type-c interface, etc., and the present disclosure does not make any specific restrictions on this.

[0051] Among them, as an exemplary embodiment, the positive and negative electrodes of the circuit board 3 can be electrically connected to the positive electrode column 12 and the casing 2 respectively, and the connecting piece 51 can be connected to the positive electrode of the circuit board 3. In this way, when the casing 2 is installed at the end of the casing 11 of the battery cell 1 close to the positive electrode column 12, the circuit board 3 can also be arranged at a position close to the positive electrode column 12, so as to realize the connection between the circuit board 3 and the positive electrode column 12 and the negative electrode output end. At this time, the positive electrode column 12 of the battery cell 1 is directly electrically connected to the circuit board 3, and the negative electrode column of the battery cell 1 can be in contact with the casing 11 of the battery cell 1 so that the casing 11 serves as the negative electrode of the battery cell 1. The casing 2 is in contact with the casing 11 and electrically connected to the circuit board 3, so that the negative electrode column of the battery cell 1 can be electrically connected to the circuit board 3. Therefore, the axial size of the casing 2 can be designed according to the distance between the circuit board 3 and the casing 11, and the circuit board 3 is arranged at the end of the casing 11 where the positive electrode column 12 is arranged, thereby achieving the purpose of shortening the size of the casing 2 and reducing the production cost of the battery.

[0052] In the battery provided in the present disclosure, the housing 2 can be electrically connected to the circuit board 3 in any suitable manner, and the present disclosure does not impose any specific limitation on this. Figure 3 As shown in , the inner wall of the suit shell 2 can be connected with a lead piece 23, and the lead piece 23 is attached to the circuit board 3 and welded to achieve electrical connection between the suit shell 2 and the circuit board 3, so that the electrical connection between the circuit board 3 and the housing 11 is achieved by using the suit shell 2 as a conductive member. The lead piece 23 can be formed on the suit shell 2 in any suitable manner. In an exemplary embodiment of the present disclosure, reference is made to Figure 6 As shown in the figure, the lead-out piece 23 is formed on the suit shell 2 by stamping. On the one hand, this facilitates processing and makes the connection between the suit shell 2 and the lead-out piece 23 more stable. On the other hand, the lead-out piece 23 and the suit shell 2 are integrated into one piece, which can reduce the internal resistance of the electrical connection between the suit shell 2 and the circuit board 3 and avoid battery energy loss.

[0053] The lead-out piece 23 and the circuit board 3 may be welded in any suitable manner, such as soldering or laser welding, and the present disclosure does not impose any specific limitation on this. Figure 6 As shown, when the lead-out piece 23 and the circuit board 3 are connected by soldering, a connection hole 231 can be provided on the lead-out piece 23, so that the molten tin liquid can leak from the connection hole 231 to between the lead-out piece 23 and the circuit board 3 during the soldering connection, thereby facilitating the soldering connection.

[0054] In the specific implementation provided by the present disclosure, the housing 11 can be constructed in any suitable form to achieve the purpose of electrical connection with the housing 11, and the present disclosure does not impose any specific limitation on this. Figures 2 to 5 As shown, the outer wall of the shell 11 can be formed with an annular contact surface 111, which is connected to the end face, and the sheath shell 2 is in conductive contact with the annular contact surface 111, wherein the end face is the end face of the shell 11 of the battery cell 1, and the positive pole 12 extends from an opening set on the end face, that is, the annular contact surface 111 is set at one end of the shell 11 close to the positive pole 12, that is, the sheath shell 2 is arranged at one end of the shell 11 close to the positive pole 12, and the sheath shell 2 is connected to the shell 11 of the battery cell 1 by contacting with the annular contact surface 111. In this way, the distance between the positive and negative poles of the battery cell 1 is shortened, which facilitates the electrical connection between the battery cell 1 and other components in the battery.

[0055] In order to achieve the fixation between the suit shell 2 and the outer shell 11, in one embodiment provided in the present disclosure, reference Figure 3 and Figure 5As shown in , the housing 11 may include a main body 112 and a connecting concave ring 113, the connecting concave ring 113 is recessed inward from the main body 112 and a stop surface 114 is formed between the main body 112, and a connecting protrusion 22 is formed on the inner wall of the set shell 2, the end of the set shell 2 is stopped at the stop surface 114, and the connecting protrusion 22 is interference-fitted in the connecting concave ring 113 and is stopped in the connecting concave ring 113 through the stop surface 114 and the annular contact surface 111. Through the above-mentioned arrangement, a snap-in interference fit is achieved between the set shell 2 and the housing 11, and the connection stability is ensured while the detachability is achieved, which is convenient for the early assembly of the battery and the later recycling. Among them, the connecting protrusion 22 can be formed on the inner wall of the set shell 2 in the form of welding, or can be integrally formed with the set shell 2 in the form of stamping, etc., and any suitable arrangement can be selected according to the actual use situation, and the present disclosure does not make specific restrictions on this.

[0056] Further, in some embodiments provided in the present disclosure, a plurality of connection protrusions 22 may be provided, and the plurality of connection protrusions 22 are arranged at intervals along the circumference of the sheath shell 2 , thereby further increasing the stability of the connection between the sheath shell 2 and the outer shell 11 .

[0057] In the battery provided in the present disclosure, the battery can achieve the insulation connection between the positive terminal 5 and the casing 2 by any suitable method, and the present disclosure does not make any specific limitation on this. As an exemplary embodiment, refer to Figure 2 and Figure 7 As shown in , the battery may further include a support frame 4, which is fixedly mounted on the casing 2 and is formed with a fixing portion 41 and a through hole 42, and a positive terminal 5 may be fixedly mounted on the fixing portion 41 and include a connecting piece 51, which passes through the through hole 42 for electrical connection with the positive electrode column 12. In other words, the positive terminal 5 may be fixed to the support frame 4 through the fixing portion 41, and the connecting piece 51 may extend to the positive electrode column 12 through the through hole 42 and be electrically connected to the positive electrode column 12, so that the positive terminal 5 serves as the positive output terminal of the battery, and is insulated from the negative output terminal, i.e., the casing 2, through the support frame 4.

[0058] In the battery provided in the present disclosure, the support frame 4 can be designed in any suitable manner according to actual needs, and the present disclosure does not impose any specific restrictions on this. Figure 7 and Fig. 9 As shown in , the support frame 4 may include a support body 43 and a support platform 44, the support platform 44 protrudes from the support body 43 in the radial direction of the support body 43, and the support platform 44 abuts against the end surface of the set shell 2. In this way, the support platform 44 is supported between the set shell 2 and the positive terminal 5, thereby ensuring the insulation between the set shell 2 as the negative electrode of the battery cell 1 and the positive terminal 5, and avoiding the occurrence of short circuit in the battery.

[0059] The support frame 4 can be fixed to the housing 2 in any suitable manner, and the present disclosure does not impose any specific limitation on this. Figure 6 and Figure 7 As shown in , the support frame 4 can be provided with a positioning protrusion 45, and the positioning protrusion 45 extends from the support platform 44 along the axial direction of the support body 43, and the set shell 2 can be provided with a positioning groove 24, and the positioning groove 24 is recessed from the end surface of the set shell 2 along the axial direction of the set shell 2, and the positioning protrusion 45 is inserted into the positioning groove 24. The position between the support frame 4 and the set shell 2 is limited by the clamping of the positioning groove 24 and the positioning protrusion 45 to prevent the support frame 4 from sliding relative to the set shell 2. In some other embodiments, the set shell 2 can also be provided with a positioning protrusion 45, and correspondingly, the support frame 4 can be provided with a positioning groove 24 that cooperates with the positioning protrusion 45, which can also achieve the fixation between the support frame 4 and the set shell 2, and the present disclosure does not make specific restrictions on this. In addition, in specific use, the positioning protrusion 45 can be set to any suitable shape, such as a cone and a rectangle, and the positioning groove 24 is correspondingly set to a shape that is compatible with the outer contour of the positioning protrusion 45, and the present disclosure does not make specific restrictions on this.

[0060] In the battery provided in the present disclosure, the support frame 4 can be fixed to the circuit board 3 in any suitable form, and the present disclosure does not impose any specific restrictions on this. Fig. 9 As shown in the figure, the support body 43 and the circuit board 3 can be connected through a clamping structure, and the clamping structure includes a clamping portion 46 and a clamping groove 31 that cooperate with each other. One of the support body 43 and the circuit board 3 is provided with a clamping portion 46, and the other is provided with a clamping groove 31. In this way, not only can the connection between the support frame and the circuit board 3 be achieved through the clamping portion 46 and the clamping groove 31, but also the support frame 4 and the circuit board 3 can be quickly disassembled when necessary.

[0061] The clamping portion 46 and the clamping slot 31 may be of any suitable design, and the present disclosure does not impose any specific limitation on this. Figures 7 to 9As shown, the support body 43 may be formed with a clamping portion 46, and the clamping portion 46 may be constructed as an L-shaped block, the L-shaped block includes a first block 461 and a second block 462, the first block 461 is connected to the support body 43 and extends along the axial direction of the support body 43, the second block 462 is connected to the first block 461 and is formed with a stop surface 463, and the circuit board 3 may be provided with a clamping groove 31, the clamping groove 31 is recessed inward from the edge of the circuit board 3, the L-shaped block is inserted into the clamping groove 31, and the stop surface 463 is in contact with the circuit board 3 to support the circuit board 3. Through the above arrangement, the stop surface 463 is in contact with the circuit board 3 to achieve the position fixation between the support body 43 and the circuit board 3 along the axial direction of the support body 43, and then the set shell 2 is sleeved on the outside of the support frame 4 to play a role of a tight hoop for the clamping portion 46, so that the clamping of the clamping portion 46 and the clamping groove 31 is more stable.

[0062] In the battery provided by the present disclosure, the support frame 4 can be constructed as an insulating member, so that the support frame 4 can not only support and limit the circuit board 3 and other components, but also provide insulation protection for the positive terminal 5, so that the positive terminal 5 can be stably connected to the circuit board 3, and can avoid the positive terminal 5 from directly contacting the casing 2 to cause a short circuit. In specific use, the support frame 4 can be made of any insulating material including plastic, and the present disclosure does not make any specific restrictions on this.

[0063] In the battery provided in the present disclosure, the positive terminal 5 can be designed in any suitable manner according to actual needs. Fig.10 As shown in the figure, the positive terminal 5 may include an end cover 52 and a plug-in piece 53, the plug-in piece 53 is connected to the end cover 52, the fixing portion 41 is constructed as a plug-in slot 411, the end cover 52 is covered on the support frame 4, and the plug-in piece 53 is plugged into the plug-in slot 411, thereby realizing the connection and fixation between the support body 43 and the positive terminal 5.

[0064] In the battery provided herein, the connecting piece 51 can be connected to the end cover 52 and spaced apart from the plug-in piece 53. The circuit board 3 is provided with a connecting socket 32. The connecting piece 51 is inserted into the connecting socket 32 ​​and is in conductive contact with the wall of the connecting socket 32. In this way, the end cover 52 and the positive pole of the circuit board 3 are connected through the connection between the connecting piece 51 and the connecting socket 32. When the battery supplies power to the outside, the end cover 52 serves as the positive output terminal to supply power to the outside.

[0065] Among them, the connecting piece 51 can select any suitable design. In an exemplary embodiment provided by the present disclosure, the connecting piece 51 may include a sheet-like body 511 and a bending portion 512, the sheet-like body 511 is connected to the end cover 52, the bending portion 512 is bent from the end of the sheet-like body 511 toward the end cover 52, the sheet-like body 511 and the bending portion 512 are respectively in conductive contact with the two opposite walls of the connecting socket 32 ​​and welded, when the positive terminal 5 needs to be installed, it is only necessary to align the connecting piece 51 toward the connecting socket 32 ​​and insert it, after entering the connecting socket 32, the bending portion 512 is compressed toward the sheet-like body 511 under the action of the inner wall of the connecting socket 32, so as to achieve full contact between the connecting piece 51 and the inner wall of the connecting socket 32, that is, to achieve full contact between the connecting piece 51 and the circuit board 3, thereby ensuring the reliability of the electrical connection between the positive terminal 5 and the circuit board 3. In addition, the full contact between the connecting piece 51 and the connecting socket 32 ​​can also play a certain positioning role, which is convenient for the subsequent welding between the connecting piece 51 and the circuit board 3.

[0066] In addition, in some other embodiments of the present disclosure, welding may not be used to connect the sheet-like body 511 and the bent portion 512 to the wall of the connecting socket 32. It is only necessary to ensure that the sheet-like body 511 and the bent portion 512 can respectively contact and conduct electricity with the wall of the connecting socket 32. The specific connection method can be selected arbitrarily according to actual needs, and the present disclosure does not impose any specific restrictions on this.

[0067] In the present disclosure, the battery may further include a conductive connector 7, the circuit board 3 is provided with a mounting hole, the conductive connector 7 is fixed in the mounting hole, the positive electrode column 12 is passed through the conductive connector 7 and is in conductive contact with the conductive connector 7, so that the conductive connector 7 is provided to realize the connection between the positive electrode column 12 and the circuit board 3.

[0068] In the specific implementations provided in the present disclosure, the conductive connector 7 can be designed in any suitable manner according to actual needs. Fig.11 As shown, the conductive connector 7 may include a hollow body 71, an overlap flange 72 and a limit flange 73. The hollow body 71 is formed with a channel for the positive pole 12 to pass through. The overlap flange 72 and the limit flange 73 are respectively formed at two opposite ends of the hollow body 71 and are bent away from the hollow body 71. The hollow body 71 is arranged in the mounting hole, and the overlap flange 72 and the limit flange 73 are respectively overlapped on two opposite surfaces of the circuit board 3. Through the above arrangement, the arrangement of the overlap flange 72 and the limit flange 73 can facilitate the fixing of the conductive connector 7 as a whole on the circuit board 3 for conductive connection, and can also form a trumpet-shaped structure at the open end of the hollow body 71 for the convenience of inserting the positive pole 12 into the hollow body 71.

[0069] On the basis of the above technical solution, the present disclosure further provides an electric device, which includes the above battery. The electric device provided by the present disclosure also has the above characteristics, which will not be described here in order to avoid repetition.

[0070] In the present disclosure, the electrical device may be any suitable electrical device such as a mobile phone, a portable device, a laptop computer, a vehicle (such as a fuel vehicle, a gas vehicle, or a new energy vehicle, etc.), and the present disclosure does not impose any specific restrictions on this.

[0071] refer to Figures 1 to 11 As shown, the specific implementation principle of the embodiment of the present disclosure is: when the battery is in use, the shell 11 as a whole serves as the negative electrode of the battery cell 1, and the positive electrode post 12 as the positive electrode of the battery cell 1 extends from the end of the shell 11 where an opening is provided. At this time, the circuit board 3 is arranged close to the positive electrode post 12 and is directly electrically connected to the positive electrode post 12 to achieve electrical connection with the positive electrode of the battery cell 1. Since the shell 11 as a whole serves as the negative electrode of the battery cell 1, in order to save the production cost of the battery, the set shell 2 can be arranged to contact the area of ​​the shell 11 close to the positive electrode post 12 (i.e., the annular contact surface 111), thereby achieving electrical connection between the set shell 2 and the shell 11 of the battery cell 1. In this case, the axial dimension of the set shell 2 can be designed to be smaller, which can save the production cost of the battery, and the set shell 2 is arranged at one end of the shell 11 of the battery cell 1, which can shorten the radial dimension of the battery and improve the energy density of the battery. Specifically, the casing 2 is directly in contact with the annular contact surface 111 in the outer shell 11 to achieve conduction, and then the lead-out piece 23 is welded to the circuit board 3 to achieve conduction from the casing 2 to the circuit board 3, and the positive pole 12 is plugged into the conductive connector 7 located on the circuit board 3, so that the positive and negative poles of the battery cell 1 are connected and conducted with the circuit board 3 respectively, and further, the positive terminal 5 is connected to the circuit board 3 through the connection between the connecting piece 51 and the connecting socket 32, and when the battery needs to be charged, the charging interface 6 provided on the circuit board 3 charges the battery. In addition, the support frame 4 provided in the casing 2 can not only support the circuit board 3 and the positive terminal 5 respectively, but also achieve insulation protection between the positive terminal 5 and the casing 2.

[0072] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0074] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery, characterized in that: The battery comprises: A battery cell, the battery cell comprising a shell and a positive electrode column, the end surface of the shell being provided with an opening so that the positive electrode column can extend from the opening to the outside of the shell; A sleeve shell, the sleeve shell is formed with a receiving space, and is sleeved on the outer shell and is in conductive contact with the outer shell, the sleeve shell is used as a negative electrode output terminal, and the positive electrode column is located in the receiving space; and A positive terminal is mounted on the casing and insulated from the casing, and is electrically connected to the positive electrode post.

2. The battery according to claim 1, characterized in that The battery further includes a circuit board, and the circuit board is arranged in the accommodation space. The suit shell is provided with an opening, the circuit board is provided with a charging interface, and the charging interface is exposed outside the suit shell through the opening.

3. The battery according to claim 2, characterized in that The positive electrode and the negative electrode of the circuit board are electrically connected to the positive electrode column and the casing respectively, and the positive electrode terminal is connected to the positive electrode of the circuit board.

4. The battery according to claim 2, characterized in that The inner wall of the housing is connected with a lead-out piece, and the lead-out piece is attached to the circuit board and connected by welding.

5. The battery according to claim 4, characterized in that The lead-out piece is formed in the housing by punching.

6. The battery according to any one of claims 1 to 5, characterized in that An annular contact surface is formed on the outer peripheral wall of the housing, and the annular contact surface is connected to the end surface, and the sleeve shell is in conductive contact with the annular contact surface.

7. The battery according to claim 6, characterized in that The outer shell includes a main body and a connecting concave ring, the connecting concave ring is recessed inward from the main body and a stop surface is formed between the main body, a connecting protrusion is formed on the inner wall of the sleeve shell, the end of the sleeve shell stops at the stop surface, and the connecting protrusion is interference fit in the connecting concave ring and is stopped in the connecting concave ring through the stop surface and the annular contact surface.

8. The battery according to claim 2, characterized in that The battery also includes a support frame, which is fixedly mounted on the casing and formed with a fixing portion and a through hole. The positive terminal is fixedly mounted on the fixing portion and includes a connecting piece, which passes through the through hole for electrical connection with the positive electrode column.

9. The battery according to claim 8, characterized in that The support frame includes a support body and a support platform. The support platform protrudes from the support body in a radial direction of the support body, and the support platform abuts against an end surface of the sleeve shell.

10. The battery according to claim 9, characterized in that The support frame is provided with a positioning protrusion, which extends from the support platform along the axial direction of the support body, and the sleeve shell is provided with a positioning groove, which is recessed from the end surface of the sleeve shell along the axial direction of the sleeve shell, and the positioning protrusion is inserted in the positioning groove.

11. The battery according to claim 9, characterized in that The support body is connected to the circuit board via a clamping structure, wherein the clamping structure comprises a clamping portion and a clamping groove that cooperate with each other, and one of the support body and the circuit board is provided with the clamping portion, and the other is provided with the clamping groove.

12. The battery according to claim 11, characterized in that The support body is formed with a clamping portion, and the clamping portion is configured as an L-shaped block, and the L-shaped block includes a first block and a second block, wherein the first block is connected to the support body and extends along the axial direction of the support body, and the second block is connected to the first block and formed with a stop surface, The circuit board is provided with a clamping groove, which is recessed inward from the edge of the circuit board. The L-shaped block is inserted into the clamping groove, and the stop surface is in contact with the circuit board to support the circuit board.

13. The battery according to any one of claims 8 to 12, characterized in that: The support frame is configured as an insulating member.

14. The battery according to claim 8, characterized in that The positive terminal comprises an end cover and a plug-in piece, the plug-in piece is connected to the end cover, the fixing portion is configured as a plug-in slot, the end cover is covered on the support frame, and the plug-in piece is plugged into the plug-in slot.

15. The battery according to claim 14, characterized in that The connecting piece is connected to the end cover and is spaced apart from the plug-in piece. The circuit board is provided with a connecting socket. The connecting piece is inserted into the connecting socket and is in conductive contact with the wall surface of the connecting socket.

16. The battery according to claim 15, characterized in that The connecting sheet includes a sheet-like body and a bending portion, the sheet-like body is connected to the end cover, the bending portion is bent from the end of the sheet-like body toward the end cover, and the sheet-like body and the bending portion are respectively in conductive contact with two wall surfaces opposite to the connecting socket and are welded together.

17. The battery according to claim 2, characterized in that The battery comprises a conductive connector, the circuit board is provided with a mounting hole, the conductive connector is fixed in the mounting hole, and the positive electrode column passes through the conductive connector and is in conductive contact with the conductive connector.

18. The battery according to claim 17, characterized in that The conductive connector includes a hollow body, an overlap flange and a limit flange, the hollow body forms a channel for the positive electrode column to pass through, the overlap flange and the limit flange are respectively formed at two opposite ends of the hollow body and are bent away from the hollow body, The hollow body is arranged in the mounting hole, and the overlapping flange and the limiting flange are overlapped on two opposite surfaces of the circuit board respectively.

19. An electrical equipment, characterized in that: The electric device comprises a battery according to any one of claims 1-18.

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