Battery and electric equipment

Abstract

The embodiment of the utility model provides a battery and electric equipment, and relates to the technical field of battery manufacturing. The battery comprises a battery cell, a circuit board and an electrical element; a tab is arranged at one end of the battery cell, the circuit board is provided with a main body part and a first folding part which are connected with each other, an electrical element is arranged on a first surface of the first folding part, and the first folding part is folded towards one side deviating from the first surface of the main body part to form a bent structure; the first surface of the first folding part and the first surface of the main body part are outer surfaces of the bending structure; the tab is electrically connected with the main body part, and the first surface of the first folding part faces the other end, opposite to the tab, of the battery cell. By folding the circuit board, the electrical element is positioned at the lower part, close to the battery cell, of the main body part of the circuit board, so that the space between the lower end of the circuit board and the battery cell is fully utilized, and the size of the battery in the height direction is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing, and specifically relates to a battery and electrical equipment. Background Art

[0002] Soft-pack batteries have the advantages of good safety performance, light weight, large battery capacity, customizability and low customization cost. They are widely used in handheld electronic cigarette devices and other 3C (Computer, Communication, Consumer Electronics) electronic devices.

[0003] Common soft-pack batteries include a bracket and a soft-pack cell. One cell can be stacked with one bracket or two brackets. The cell's tabs extend from the holes on the top PCBA (Printed Circuit Board Assembly) plate and are bent on the welding platform on the top of the PCBA. Through laser welding, the current is connected in series and collected. A large number of electrical components and related electrical connection structures for control are also integrated on the top of the PCBA.

[0004] In the related art, since the electrical components and electrical connection structures integrated on the upper part of the battery occupy a certain space, especially the space of the battery in the height direction, the existing bracket structure is not suitable for application scenarios with small installation space and high power demand. Utility Model Content

[0005] The purpose of the embodiments of the utility model is to provide a battery and an electrical device in order to solve the problem that the control components and electrical connection structures integrated on the upper part of the battery in the related art occupy a large space.

[0006] In order to solve the above technical problems, the utility model is achieved as follows:

[0007] In a first aspect, an embodiment of the utility model provides a battery, including a battery cell, a circuit board and an electrical component;

[0008] A pole ear is provided at one end of the battery cell, the circuit board has a main body and a first folded portion connected to each other, the electrical element is provided on a first surface of the first folded portion, the first folded portion is folded toward a side away from the first surface of the main body to form a bent structure, and the first surface of the first folded portion and the first surface of the main body are outer surfaces of the bent structure;

[0009] The tab is electrically connected to the main body, and the first surface of the first folded portion faces the other end of the battery cell opposite to the tab.

[0010] Optionally, a pole lug is provided at the end of the battery cell, and the pole lug includes a first conductive portion and a second conductive portion connected to each other;

[0011] The extension direction of the first conductive portion is parallel to the height direction of the battery cell, and the extension direction of the second conductive portion is obliquely intersecting with the height direction of the battery cell;

[0012] One end of the first conductive part is connected to one end of the battery cell, the other end of the first conductive part is connected to the second conductive part, and the second conductive part is electrically connected to the main body.

[0013] Optionally, the battery further comprises an insulating protective member;

[0014] The insulating protection component is connected to the battery core or the circuit board.

[0015] Optionally, the insulating protection member includes a first insulating protection member;

[0016] The first insulating protection member is located in the bending structure, and the first insulating protection member is bonded between the first folding portion and the main body portion.

[0017] Optionally, the insulating protection member includes a second insulating protection member or a magnetic insulating protection member;

[0018] The second insulating protection member or the magnetic insulating protection member is disposed on the main body and covers the pole lug.

[0019] Optionally, the insulating protection member includes a third insulating protection member;

[0020] The third insulating protection member is bonded to the outer surface of the bending structure and covers the electrical element.

[0021] Optionally, the insulating protection member includes a fourth insulating protection member;

[0022] There are at least two battery cells, and any two adjacent battery cells are glued together or the fourth insulating protection member is bonded between any two adjacent battery cells.

[0023] Optionally, the battery further comprises a housing;

[0024] The shell is coated on the outside of the battery core, the circuit board and the electrical components.

[0025] Optionally, the insulating protection member includes a fifth insulating protection member;

[0026] The fifth insulating protection member is bonded between the battery core and the shell.

[0027] Optionally, the circuit board includes a PCB and an FPC electrically connected to each other;

[0028] One of the PCB and the FPC has the main body portion, and the other of the PCB and the FPC has the first folded portion.

[0029] In a second aspect, an embodiment of the utility model further provides an electrical device, comprising the battery described in any one of the above embodiments.

[0030] The battery provided in the embodiment of the utility model includes a battery cell, a circuit board and an electrical component. A pole ear is provided on the top of the battery cell. The circuit board includes a main body and a first folding portion that are interconnected. The pole ear is electrically connected to the first surface, i.e., the upper surface, of the main body, and the first folding portion is folded toward the first surface away from the main body so that the circuit board forms a bent structure. The electrical component is located on the first surface, i.e., the outer side of the bent structure of the first folding portion, that is, by bending the first folding portion, the electrical component arranged on the first folding portion is located near the lower end of the battery cell. Compared with the prior art in which the electrical component is arranged at the upper end of the circuit board, the electrical component of the embodiment of the utility model is located at the lower end of the circuit board, which makes full use of the space between the lower end of the circuit board and the battery cell, reduces the size of the battery in the height direction, and is suitable for application scenarios with small installation space and high power demand.

[0031] The electrical equipment provided by the embodiment of the utility model has the same advantages as the battery provided by the above embodiment compared with the related art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the battery structure provided by the embodiment of the utility model;

[0033] Figure 2 In the present utility model embodiment Figure 1 Local cross-sectional view along AA direction;

[0034] Figure 3 In the present utility model embodiment Figure 1 Partial cross-sectional view along direction BB;

[0035] Figure 4 This is a schematic diagram of the structure of the battery cell, circuit board and welding tooling in the embodiment of the utility model;

[0036] Figure 5 This is a schematic diagram of the first step of the battery assembly process in the embodiment of the utility model;

[0037] Figure 6 This is a schematic diagram of the second step of the battery assembly process in the embodiment of the utility model;

[0038] Figure 7 It is a schematic diagram of the third step of the battery assembly process in the embodiment of the utility model;

[0039] Figure 8 It is a schematic diagram of the fourth step of the battery assembly process in the embodiment of the utility model;

[0040] Fig. 9 This is an exploded diagram of the battery structure when three battery cells are used in the embodiment of the utility model;

[0041] Fig.10 It is a cross-sectional view of the battery structure when three battery cells are used in the embodiment of the utility model.

[0042] Reference numerals:

[0043] 1-battery cell, 1a-first battery cell, 1b-second battery cell, 11-ear, 111-first conductive part, 112-second conductive part, 12-top seal, 2-circuit board, 201-PCB board, 202-FPC board, 21-main body, 211-first solder pad, 212-second solder pad, 213-first surface of the main body, 214-second surface of the main body, 22-first folding part, 221-first surface of the first folding part, 222-second surface of the first folding part, 23-second folding part, 231-connector, 3-electrical component, 4-insulating protection part, 41-first insulating protection part, 42-second insulating protection part, 43-third insulating protection part, 44-fourth insulating protection part, 45-fifth insulating protection part, 5-shell, 6-welding tooling, 61-first limiting groove, 62-second limiting groove. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0046] The battery and electrical equipment provided by the embodiments of the present utility model are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0047] Reference Figures 1 to 3 The utility model provides a battery, including a battery cell 1, a circuit board 2 and an electrical component 3; a pole ear 11 is provided at one end of the battery cell 1, the circuit board 2 has a main body 21 and a first folding portion 22 connected to each other, the electrical component 3 is provided on a first surface 221 of the first folding portion, the first folding portion 22 is folded toward a side away from the first surface 213 of the main body to form a bending structure, the first surface 221 of the first folding portion and the first surface 213 of the main body are outer surfaces of the bending structure; the pole ear 11 is electrically connected to the main body 21, and the first surface 221 of the first folding portion faces the other end of the battery cell 1 opposite to the pole ear 11.

[0048] Specifically, if Figures 1 to 3 As shown, the battery provided in the embodiment of the utility model is a soft-pack battery, including a battery cell 1, a circuit board 2 and an electrical component 3. The outside of the battery cell 1 is coated with an aluminum-plastic film, which plays the role of heat insulation, moisture-proof and protection of the internal structure of the battery cell. The number of battery cells 1 is one, two or more, which is not limited in this embodiment. The top seal 12 of the aluminum-plastic film is located at the end of the battery cell 1, and the pole ear 11 is connected to the battery cell 1 and extends from the top seal 12. The circuit board 2, also known as the battery protection board, is arranged near the end of the battery cell 1, and performs overcharge, over-discharge, overcurrent and short-circuit protection functions by collecting and monitoring the status and parameters of the battery. The circuit board 2 has a main body 21 and a first folding portion 22 that are interconnected. The electrical component 3 is arranged on the first folding portion 22, and a soldering pad is arranged on the first surface 213 of the main body, that is, the upper surface facing away from the battery cell 1. The pole ear 11 and the soldering pad are laser welded to form an electrical connection between the pole ear 11 and the circuit board 2. As shown Figure 4As shown, since the utility model omits the battery support structure, in order to effectively limit the position during the welding process to improve the welding reliability and consistency, the welding tool 6 is used to assist the welding between the pole ear 11 and the circuit board 2. In some embodiments, two battery cells, namely the first battery cell 1a and the second battery cell 1b, are used as an example for explanation: the welding tool 6 is placed on the workbench, the main body 21 of the circuit board 2 is aligned and placed in the first limiting groove 61 of the welding tool 6, the first battery cell 1a and the second battery cell 1b are respectively aligned and placed in the second limiting grooves 62 located on both sides of the first limiting groove 61, and a nickel sheet is arranged between the pad and the pole ear to facilitate welding and forming, the pole ear 11 of the positive terminal of the first battery cell 1a and the pole ear 11 of the positive terminal of the second battery cell 1b are laser welded at the first pad 211 of the main body 21, and the pole ear 11 of the negative terminal of the first battery cell 1a and the pole ear 11 of the negative terminal of the second battery cell 1b are laser welded at the second pad 212 of the main body 21, and the electrical connection between the battery cell 1 and the circuit board 2 is completed. The positive electrode tab of this embodiment is an aluminum tab, and the negative electrode tab is a nickel tab. In order to take safety into consideration, the battery cell 1 adopts a lithium iron phosphate battery cell.

[0049] Specifically, if Figures 1 to 3 As shown, an electrical component 3 is arranged on the first surface 221 of the first folding portion. After the pole ear 11 and the circuit board 2 are welded and formed, the first folding portion 22 is folded toward the side away from the first surface 213 of the main body, that is, the negative Z direction, so that the first folding portion 22 and the main body 21 form a bending structure. After folding, the first surface 213 of the main body and the first surface 221 of the first folding portion are the outer surfaces of the bending structure, and the second surface 214 of the main body and the second surface 222 of the first folding portion are the inner surfaces of the bending structure. This bending structure can be a U-shaped bending structure, a V-shaped bending structure or a bending structure composed of two right angles. The present embodiment is a U-shaped bending structure. After folding, the electrical component 3 is located on the outer surface of the U-shaped structure, that is, the electrical component 3 is located at the lower part of the first folding portion 22 along the negative Z direction. Taking the structure designed with two battery cells 1 as an example, after folding, the electrical component 3 is located between the top seals 12 of the two battery cells 1, which effectively utilizes this spatial position, avoids the arrangement of the electrical component 3 and related electrical connection structures on the upper part of the circuit board 2 along the positive Z direction, and reduces the height dimension of the battery along the Z direction. In addition, the circuit board 2 also includes a second folding portion 23, on which a connector 231 is arranged for electrical connection with an external electrical device. The first folding portion 22 is connected to one side of the main body 21, and the second folding portion 23 is connected to the other side of the main body 21. When the first folding portion 22 is folded downward along the negative Z direction, the second folding portion 23 is folded upward along the positive Z direction and partially extends out of the battery, so as to facilitate the electrical connection of the connector 231 with the external electrical device, and a three-layer stacking structure is formed by the folded circuit board 2.

[0050] The battery provided in this embodiment folds the first folding portion toward the lower end of the battery cell, so that the electrical component is located at the lower part of the main body of the circuit board close to the battery cell. Compared with the prior art that sets the electrical component at the upper end of the circuit board, the embodiment of the utility model fully utilizes the space between the lower end of the circuit board and the battery cell, reduces the size of the battery in the height direction, and is suitable for application scenarios with small installation space and high power demand.

[0051] Optionally, refer to Figure 2 and Figure 3 The electrode tab 11 includes a first conductive portion 111 and a second conductive portion 112 that are connected to each other; an extension direction of the first conductive portion 111 is parallel to a height direction of the battery cell 1, and an extension direction of the second conductive portion 112 is obliquely intersecting with the height direction of the battery cell 1; one end of the first conductive portion 111 is connected to one end of the battery cell 1, and the other end of the first conductive portion 111 is connected to the second conductive portion 112, and the second conductive portion 112 is electrically connected to the main body 21.

[0052] Specifically, if Figure 2 and Figure 3As shown, the tab 11 is in a bent structure to form a first conductive part 111 and a second conductive part 112 that are connected to each other obliquely. Among them, the extension direction of the first conductive part 111 is parallel to the height direction of the battery cell 1 along the Z direction, and the extension direction of the second conductive part 112 is obliquely intersected with the extension direction of the first conductive part 111. Generally, the angle between the extension direction of the second conductive part 112 and the extension direction of the first conductive part 111 is set to be between 80° and 100°. Exemplarily, the value of this angle can be 80°, 85°, 90°, 95° or 100°. When the length directions of the two battery cells 1 are set to be parallel, it is necessary to set the second conductive part 112 perpendicular to the first conductive part 111, and the tab 11 is in an L-shaped bent structure, which can make the circuit board 2 perpendicular to the length direction of the battery cell 1, and it is easier to assemble and position the battery cell. On the one hand, during actual assembly, parts will produce certain deformation and assembly errors, so the angle between the extension direction of the second conductive part 112 and the extension direction of the first conductive part 111 is designed to be close to 90°, such as 85° or 88°; on the other hand, if the length directions of the two battery cells 1 are obliquely intersected and not completely parallel, in order to facilitate the assembly and positioning of the battery cells, the angle between the extension direction of the second conductive part 112 and the extension direction of the first conductive part 111 is set to be close to 90°. On the basis of facilitating the assembly of battery cells and circuit boards, this example reduces the size of the pole ear 11 along the Z direction, i.e., the height direction of the battery cell 1, by bending the pole ear 11, thereby reducing the size of the battery in the height direction. One end of the first conductive part 111 is connected to the upper end of the battery cell 1, and the other end is connected to the second conductive part 112. In this embodiment, the pole ear portion coated with the pole ear glue is bent to avoid deformation of the welded portion of the pole ear 11, i.e., the second conductive part 112, due to bending.

[0053] Specifically, if Figure 2 and Figure 3 As shown, when two battery cells 1 are used, the two battery cells 1 are respectively located on both sides of the circuit board 2 after being bent. Fig. 9 and Fig.10 As shown, when three or more battery cells 1 are used, some through holes need to be provided on the circuit board 2 for extending the tabs 11 of some battery cells 1 , and after the tabs 11 are bent, they are laser welded to the main body 21 of the circuit board 2 .

[0054] Optionally, refer to Figure 2 , Figure 3 and Figure 6 , the battery further includes an insulating protective member 4;

[0055] The insulating protection member 4 is connected to the battery core 1 or the circuit board 2 .

[0056] Specifically, an insulating protection member 4 is provided on the outside of the battery cell 1 or on the surface of the circuit board 2 to insulate and protect the battery cell 1 or the circuit board 2 to prevent the battery cell 1 or the circuit board 2 from being scratched, damaged or causing leakage and short circuit during the assembly process.

[0057] Optionally, refer to Figure 2 , Figure 3 and Figure 6 The insulating protection member 4 includes a first insulating protection member 41 ; the first insulating protection member 41 is located in the bending structure, and the first insulating protection member 41 is bonded between the first folding portion 22 and the main body portion 21 .

[0058] Specifically, if Figure 2 , Figure 3 and Figure 6 As shown, before the first folding portion 22 is folded, the first insulating protective member 41 is bonded to one side of the main body 21 along the negative Z direction, and the first insulating protective member 41 has double-sided adhesive. After the first folding portion 22 is folded, the first insulating protective member 41 is located in the U-shaped bending structure and bonded between the first folding portion 22 and the main body 21. On the one hand, the U-shaped bending structure can be effectively shaped to avoid residual stress during folding, so that the first folding portion 22 is reversely bent. On the second hand, the first insulating protective member 41 can effectively insulate and isolate the first folding portion 22 from the main body 21 to prevent the hard circuit board from scratching the soft circuit board. On the third hand, since some electrical components are also provided on one side of the main body 21 along the negative Z direction, the first insulating protective member 41 effectively covers and protects the electrical components, so that the first insulating protective member 41 and the electrical components form a certain space sharing, which is friendly to the material of the electrical components. When vibrating or impacted, it can effectively reduce shock and prevent the components and circuit boards from being squeezed and damaged. The first insulating protection member 41 is a foamed soft non-dry medium, including but not limited to CR (Chloroprene Rubber) foam or EVA (Ethylene-Vinyl-Acetate-Copolymer) foam.

[0059] Optionally, refer to Figure 2 , Figure 3 and Figure 6 The insulating protection member 4 includes a second insulating protection member 42 or a magnetic insulating protection member; the second insulating protection member 42 or the magnetic insulating protection member is disposed on the main body 21 and covers the pole lug 11 .

[0060] Specifically, if Figure 2 , Figure 3 and Figure 6As shown, after the welding between the pole ear 11 and the main body 21 of the circuit board 2 is completed, a second insulating protective member 42 with adhesive backing is bonded to the upper end of the pole ear 11. The second insulating protective member 42 is a soft non-dry medium. On the first hand, in order to adapt to bonding on uneven areas, it should have the characteristics of softness. On the second hand, it needs to have the characteristics of breakdown resistance and insulation, and be able to withstand a voltage of at least 100V. On the third hand, its thickness is relatively thin, which reduces the space occupied. On the fourth hand, it has a certain scratch resistance to prevent external parts from scratching the pole ear 11 and the circuit board 2, affecting the welding effect. Its materials include but are not limited to thin PC (Polycarbonate) sheets or glutinous rice paper. In addition, under the premise of ensuring the bonding effect, the second insulating protection part 42 can be replaced with a magnetic insulating protection part of the same thickness according to the actual needs of the product. On the basis of meeting the insulation protection performance, the pole ear 11 and the circuit board 2 are magnetically shielded and structurally protected. The magnetic shielding part needs to pass certain EMC (Electro-Magnetic patibility) tests to ensure its anti-interference ability in the electromagnetic field.

[0061] Optionally, refer to Figure 2 , Figure 3 and Figure 6 The insulating protection member 4 includes a third insulating protection member 43 ; the third insulating protection member 43 is bonded to the outer surface of the bending structure and covers the electrical component 3 .

[0062] Specifically, if Figure 2 , Figure 3 and Figure 6 As shown, after folding the first folding portion 22, the electrical component 3 is located at the lower part of the main body 21 along the negative Z direction and close to the end of the battery cell 1. Therefore, in order to prevent the circuit board 2 from scratching the battery cell 1 and the electrical component 3, a third insulating protective member 43 is bonded to the outer side of the U-shaped bending structure formed by the first folding portion 22 and the main body 21, and covers the pole lug 11 at the same time. The third insulating protective member 43 is located between the electrical component 3 and the battery cell 1, and can insulate the charged environment formed by the circuit board 2 and the pole lug 11 to ensure the electrical safety of the circuit board 2. Since the surface of the electrical component 3 is uneven, the third insulating protective member 43 is set as a soft non-dry medium and is provided with a backing adhesive to improve the adhesion, and needs to have the characteristics of breakdown resistance and insulation, and can withstand a voltage of at least 100V. The material of the third insulating protective member 43 includes but is not limited to thin PC sheets or glutinous rice paper.

[0063] Optionally, refer to Figure 2 , Figure 3 and Figure 6The insulating protection member 4 includes a fourth insulating protection member 44; there are at least two battery cells 1, and any two adjacent battery cells 1 are glued or the fourth insulating protection member 44 is bonded between any two adjacent battery cells 1.

[0064] Specifically, if Figure 2 , Figure 3 and Figure 6 As shown, when at least two stacked cells 1 are loaded, any two adjacent cells 1 are glued by dispensing or a fourth insulating protective member 44 is bonded between two adjacent cells 1 to improve the reliability of the connection between the multiple cells 1. The fourth insulating protective member 44 is a soft non-dry medium, which effectively protects the structure of the cell 1 and avoids scratching and damage to the cell 1. It is also provided with a double-sided adhesive, has insulating and heat-insulating properties, isolates the heat between the cells 1, and reduces the risk of heat transfer. The material of the fourth insulating protective member 44 includes but is not limited to PC or PP (Polypropylene).

[0065] Optionally, refer to Figure 1 and Figure 8 The battery further includes a shell 5 ; the shell 5 covers the outside of the battery core 1 , the circuit board 2 and the electrical component 3 .

[0066] Specifically, if Figure 1 and Figure 8 As shown, after the battery cells 1 are grouped, they are placed inside the housing 5, which provides an effective insulating compartment for the battery cell group. The housing 5 is made of engineering plastics with good insulation performance and can meet the use requirements of a small space. Figure 2 and Figure 3 The shell 5 is provided with an opening to facilitate extending the connector 231 provided on the second folding portion 23 for electrical connection with an external electrical device.

[0067] Optionally, refer to Figure 8 The insulating protection member 4 includes a fifth insulating protection member 45 ; the fifth insulating protection member 45 is bonded between the battery core 1 and the shell 5 .

[0068] Specifically, if Figure 8 As shown, before the battery cell 1 is installed in the housing 5, a fifth insulating protective member 45 is bonded around the side of the battery cell 1 to prevent the aluminum-plastic film of the battery cell 1 from being damaged during the assembly process, thereby damaging the structure of the battery cell 1, that is, to establish a protective layer on the side of the battery cell 1. The fifth insulating protective member 45 is a soft non-drying medium with withstand voltage insulation properties, and its material includes but is not limited to PC or PP.

[0069] Optionally, refer to Figures 2 to 4The circuit board 2 includes a PCB board 201 and an FPC board 202 which are electrically connected to each other; one of the PCB board 201 and the FPC board 202 has the main body portion 21, and the other of the PCB board 201 and the FPC board 202 has the first folding portion 22.

[0070] Specifically, if Figures 2 to 4 As shown, the circuit board 2 is composed of a PCB board 201 (Printed Circuit Board) and an FPC board 202 (Flexible Printed Circuit). A main body 21 can be provided on the PCB board 201 for welding with the pole ear 11, and a first folding portion 22 can be provided on the FPC board 202 to fold the FPC board 202 toward the negative Z direction; or, a main body 21 can be provided on the FPC board 202 for welding with the pole ear 11, and a first folding portion 22 can be provided on the PCB board 201 to fold the PCB board 201 toward the negative Z direction. Since the FPC board 202 is highly flexible, the PCB board 201 is usually electrically connected to the middle of the FPC board 202 to fold the FPC board 202, and the PCB board 201 is relatively hard, so a soldering pad is provided to ensure welding reliability.

[0071] In some embodiments, the battery is assembled using the following steps:

[0072] Step 1: Figure 5 As shown, the PCB board 201 is placed in the first limiting groove 61 of the welding tool 6, and the first battery cell 1a and the second battery cell 1b are respectively placed in the second limiting grooves 62 located on both sides of the first limiting groove 61, and laser welding is performed between the battery cell's tab 11 and the PCB board 201.

[0073] Step 2: Figure 6 As shown, the second insulating protective member 42 is bonded to the upper part of the tab 11, and the first insulating protective member 41 is bonded to the lower part of the PCB board 201. Then, the first folded portion 22 of the FPC board 202 is folded toward the negative Z direction, and the second folded portion 23 of the FPC board 202 is folded toward the positive Z direction, so that the first folded portion 22 forms a U-shaped structure with the PCB board 201 through the bonding effect of the first insulating protective member 41. After the U-shaped structure is formed, the third insulating protective member 43 is bonded to the outer side of the U-shaped structure facing the negative Z direction to cover the electrical component 3 and the tab 11. At the same time, the fourth insulating protective member 44 is bonded to the surface of the battery cell 1.

[0074] Step 3: Figure 7 As shown, the tab 11 of the battery cell 1 is bent 90°, the battery cell 1 is placed vertically, and the side surfaces of adjacent battery cells 1 are connected together via a fourth insulating protective member 44 .

[0075] Step 4: Figure 8 As shown, a fifth insulating protective member 45 is bonded to the outside of the battery core 1 , and the battery core 1 is installed in the housing 5 .

[0076] An embodiment of the utility model further provides an electrical device, comprising the battery described in any one of the above embodiments.

[0077] The power-consuming device provided in the embodiment of the utility model is a handheld electronic cigarette device or other 3C electronic device. The power-consuming device adopts the battery provided in any of the above embodiments, which reduces the space occupied and makes the power-consuming device more portable, and is suitable for application scenarios with small installation space and high power demand.

[0078] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0079] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A battery, characterized in that: Including battery cells, circuit boards and electrical components; A pole ear is provided at one end of the battery cell, the circuit board has a main body and a first folded portion connected to each other, the electrical element is provided on a first surface of the first folded portion, the first folded portion is folded toward a side away from the first surface of the main body to form a bent structure, and the first surface of the first folded portion and the first surface of the main body are outer surfaces of the bent structure; The tab is electrically connected to the main body, and the first surface of the first folded portion faces the other end of the battery cell opposite to the tab.

2. The battery according to claim 1, characterized in that The electrode tab includes a first conductive portion and a second conductive portion connected to each other; The extension direction of the first conductive portion is parallel to the height direction of the battery cell, and the extension direction of the second conductive portion is obliquely intersecting with the height direction of the battery cell; One end of the first conductive part is connected to one end of the battery cell, the other end of the first conductive part is connected to the second conductive part, and the second conductive part is electrically connected to the main body.

3. The battery according to claim 1 or 2, characterized in that: The battery also includes an insulating protective member; The insulating protection component is connected to the battery core or the circuit board.

4. The battery according to claim 3, characterized in that The insulating protection member includes a first insulating protection member; The first insulating protection member is located in the bending structure, and the first insulating protection member is bonded between the first folding portion and the main body portion.

5. The battery according to claim 3, characterized in that The insulating protection member includes a second insulating protection member or a magnetic insulating protection member; The second insulating protection member or the magnetic insulating protection member is disposed on the main body and covers the pole lug.

6. The battery according to claim 3, characterized in that The insulating protection member includes a third insulating protection member; The third insulating protection member is bonded to the outer surface of the bending structure and covers the electrical element.

7. The battery according to claim 3, characterized in that The insulating protection member includes a fourth insulating protection member; There are at least two battery cells, and any two adjacent battery cells are glued together or the fourth insulating protection member is bonded between any two adjacent battery cells.

8. The battery according to claim 3, characterized in that The battery also includes a housing; The shell is coated on the outside of the battery core, the circuit board and the electrical components.

9. The battery according to claim 8, characterized in that The insulating protection member includes a fifth insulating protection member; The fifth insulating protection member is bonded between the battery core and the shell.

10. The battery according to claim 1, characterized in that The circuit board includes a PCB and an FPC electrically connected to each other; One of the PCB and the FPC has the main body portion, and the other of the PCB and the FPC has the first folded portion.

11. An electrical device, characterized in that: A battery comprising any one of claims 1 to 10.

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