Battery and electric device

Abstract

The battery comprises a protection plate, a lifting piece, an injection molding block and a battery cell, the protection plate is arranged on one side of the battery cell, the two ends of the lifting piece are provided with a lifting part and an embedding part respectively, the embedding part is connected with the protection plate in a lap joint mode, the injection molding block is integrally wrapped on the outer side of the protection plate and the outer side of the embedding part, and the injection molding block is connected with the battery cell. And the lifting part is exposed out of the injection molding block. According to the utility model, the mounting position of the lifting sheet is changed from the original side arrangement to the head arrangement, so that the lifting sheet is fixed on the protection plate in an injection molding manner. According to the utility model, the thickness of only one layer of gummed paper is increased, and the lifting sheet does not occupy the thickness of the battery; and the lifting piece and the easy-to-tear sticker are separately arranged, so that the situation that the adhesion area of the easy-to-tear sticker is too small due to overlapping of the lifting piece and the easy-to-tear sticker is avoided. Therefore, according to the optimized lifting sheet, the thickness of the battery is not increased, and meanwhile, the bonding area of the easy-to-tear tape can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage devices, in particular to a battery and an electrical device. Background Art

[0002] A handle and a tearable sticker are usually attached to the surface of a battery. The handle is used to take out the battery core from the battery compartment, and the tearable sticker is used to fix the battery core. Currently, the handles are basically arranged on both sides of the battery, and there are two structural forms between the handle and the tearable sticker: one is an integrated structure of the handle and the tearable sticker; the other is a split stacking structure of the handle and the tearable sticker. For a structure with high requirements for the bonding area, the handle and the tearable sticker need to be designed in an overlapping form, resulting in the handle occupying the thickness of the battery and the bonding area at the bottom of the tearable sticker being too small. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a battery and an electrical device, which solve the technical problems that the handle occupies the thickness of the battery and the bonding area at the bottom of the tearable sticker is too small.

[0004] To achieve the above purpose, the utility model provides a battery, including a protection board, a lifting piece, an injection molding block and a battery core. The protection board is arranged on one side of the battery core. Lifting parts and embedding parts are respectively arranged at both ends of the lifting piece. The embedding part is lapped and connected with the protection board. The injection molding block integrally wraps the outside of the protection board and the embedding part, and the lifting part is exposed outside the injection molding block.

[0005] Preferably, it further includes a top sealing edge fixed to the head of the battery core. The top sealing edge is arranged parallel to the lower part or the side of the protection board. The embedding part is lapped between the top sealing edge and the protection board; the top sealing edge is embedded in the injection molding block.

[0006] Preferably, the embedding part is a U-shaped structure, and the U-shaped structure abuts between the top sealing edge and the protection board; the U-shaped structure includes an upper abutting part abutting against the protection board, a lower abutting part abutting against the top sealing edge, and a vertical connecting part integrally and vertically connecting between the upper abutting part and the lower abutting part; the upper abutting part and the lower abutting part are parallel and distributed from bottom to top; an injection molding cavity for hot melt colloid injection is formed at the center of the U-shaped structure; a glue injection gap is formed between the upper abutting part and the head of the battery core, and the glue injection gap is used to guide the hot melt colloid to be injected between the protection board and the battery core.

[0007] Preferably, the lifting part is a sheet-like structure, and the lifting part extends from the side of the protection board facing the battery core to the outside of the injection molding block.

[0008] Preferably, the embedding part is an S-shaped structure. A clamping groove for clamping and cooperating with the top sealing edge is formed at one end of the S-shaped structure, and the other end of the S-shaped structure extends closely along the side of the protection board facing the battery core and is bent and lapped on the side of the protection board away from the top sealing edge;

[0009] The S-shaped structure includes a bottom abutting portion that abuts against the bottom side surface of the top sealing edge, a middle abutting portion that abuts against the upper side surface of the top sealing edge, an upper abutting portion that abuts against the upper side surface of the protection plate, a right connecting portion integrally and vertically connected between the bottom abutting portion and the middle abutting portion, and a left connecting portion integrally and vertically connected between the middle abutting portion and the upper abutting portion. Both the left connecting portion and the right connecting portion are vertically connected to both ends of the middle abutting portion respectively;

[0010] The bottom abutting portion, the right connecting portion, and the middle abutting portion are connected in sequence to enclose a clamping groove that is in clamping fit with the top sealing edge;

[0011] A glue injection cavity for injecting hot melt colloid is formed between the middle abutting portion, the left connecting portion, and the lower side surface of the protection plate.

[0012] Preferably, the lifting portion is a sheet-like structure, and the lifting portion extends parallel to the side of the protection plate away from the top sealing edge to the outside of the injection molding block.

[0013] Preferably, the lifting portion is a sheet-like structure, the lifting portion intersects perpendicularly with the side of the protection plate away from the top sealing edge, and the lifting portion extends vertically along the side of the protection plate away from the top sealing edge to the outside of the injection molding block.

[0014] Preferably, the embedding portion is formed with a glue injection hole.

[0015] Preferably, the embedding portion is an L-shaped structure, and one end of the L-shaped structure is embedded into the injection molding block and clamped between the top sealing edge and the protection plate.

[0016] Preferably, the lifting portion is a folding structure; when the folding structure is in a folded state, the lifting portion adheres to the top side surface of the injection molding block; when the folding structure is in an unfolded state, the lifting portion is perpendicular to the top side surface of the injection molding block.

[0017] Preferably, at least one side of the folding structure is provided with a cementing ear; when the folding structure is in a folded state, the cementing ear is cemented to the top side surface of the injection molding block.

[0018] Preferably, the embedding portion overlaps at least one end of the protection plate, and the lifting portion extends from one end of the injection molding block to the outside of the injection molding block.

[0019] The present utility model also provides an electric device, including the battery described in any one of the above.

[0020] Compared with the background art, in the present utility model, the embedding part of the lifting piece is injection-molded and fixed on the protection board by means of an injection molding block. The present utility model optimizes the installation method of the lifting piece, and at the same time changes the installation position and fixing form of the lifting piece. The installation position of the lifting piece is changed from the original side setting to the head setting, and its fixing form is changed from the original adhesive fixing to injection molding fixing. That is, the optimized lifting piece is fixed on the protection board by means of injection molding. The change in the installation method of the lifting piece in the present utility model will, on the one hand, only increase the thickness of a layer of adhesive tape for the battery, and there is a height difference between the battery and the battery core, so the lifting piece will not occupy the battery thickness; on the other hand, it will also separate the lifting piece from the easy-to-tear sticker, avoiding the overlap of the lifting piece and the easy-to-tear sticker resulting in too small an adhesive area of the easy-to-tear sticker. Therefore, the optimized lifting piece in the present utility model can increase the adhesive area of the easy-to-tear sticker without increasing the battery thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0022] Figure 1 The structural diagram of the battery provided by the first specific embodiment of the present utility model;

[0023] Figure 2 For Figure 1 exploded view;

[0024] Figure 3 For Figure 1 The state diagram when the tail of the lifting piece in

[0025] Figure 4 For Figure 1 The back side schematic diagram of the lifting piece in

[0026] Figure 5 For Figure 1 The state diagram when the lifting piece and the protection board in

[0027] Figure 6 For Figure 1 The longitudinal sectional view when the lifting piece and the protection board in

[0028] Figure 7 For Figure 1 The longitudinal sectional view after the lifting piece and the protection board in

[0029] Figure 8 The schematic diagram of the battery provided by the second specific embodiment of the present utility model;

[0030] Figure 9 is Figure 8 a state diagram of the lifting piece and the protection plate before folding;

[0031] Figure 10 is Figure 9 a longitudinal sectional view of

[0032] Figure 11 is Figure 8 a longitudinal sectional view of the lifting piece and the protection plate after folding and injection molding in

[0033] Figure 12 is Figure 8 a schematic diagram of the lifting piece and the protection plate before folding and injection molding in

[0034] Figure 13 is Figure 12 a longitudinal sectional view and a partial enlarged view of

[0035] Figure 14 is Figure 8 a schematic diagram of the lifting piece and the protection plate during folding and injection molding in

[0036] Figure 15 is Figure 14 a longitudinal sectional view and a partial enlarged view of

[0037] Figure 16 a schematic diagram of the battery provided by the third specific embodiment of the present utility model;

[0038] Figure 17 is Figure 16 a longitudinal sectional view of

[0039] Figure 18 a state diagram of the lifting piece of the battery provided by the fourth specific embodiment of the present utility model in a folded state;

[0040] Figure 19 is Figure 18 an exploded view of

[0041] Figure 20 is Figure 18 a schematic diagram of the lifting handle in

[0042] Figure 21 is Figure 20 a side view of

[0043] Figure 22 a state diagram of the lifting piece of the battery provided by the fourth specific embodiment of the present utility model in an unfolded state;

[0044] Figure 23 is Figure 22 a schematic diagram of the lifting piece in an unfolded state in

[0045] Figure 24 It is a state diagram when the lifting piece of the battery provided by the fifth specific embodiment of the present utility model is not attached to the injection molding block;

[0046] Figure 25 It is a state diagram when the lifting piece of the battery provided by the fifth specific embodiment of the present utility model is attached to the injection molding block.

[0047] The reference numerals are as follows:

[0048] 1 - Battery, 2 - Battery cell, and 3 - Peelable sticker;

[0049] 11 - Protection board, 12 - Lifting piece, 13 - Injection molding block, and 14 - Top sealing edge;

[0050] 121 - Lifting part, 122 - Embedding part, and 123 - Glue injection hole;

[0051] 1211 - Folding structure and 1212 - Bonding ear;

[0052] 1221 - U-shaped structure;

[0053] 12211 - Upper abutting part, 12212 - Lower abutting part, 12213 - Vertical connecting part, 12214 - Injection molding cavity, and 12215 - Glue injection gap;

[0054] 1222 - S-shaped structure;

[0055] 12221 - Bottom layer abutting part, 12222 - Intermediate abutting part, 12223 - Upper layer abutting part, 12224 - Right side connecting part, and 12225 - Left side connecting part;

[0056] 1223 - L-shaped structure. Detailed implementation manners

[0057] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0058] In order to enable those skilled in the art in this technical field to better understand the solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] The embodiment of the present utility model discloses a battery, as shown in the attached Figures 1 to 3As shown, it includes a protection board 11, a lifting piece 12, an injection molding block 13, and a battery cell 2. The protection board 11 is arranged on one side of the battery cell 2. A flexible connector is attached to the protection board 11 for electrically connecting the battery cell 2 and the main board of the device terminal, enabling the protection board 11 to provide overvoltage and overcurrent protection, avoiding explosion caused by excessive instantaneous current or voltage during charging, and enhancing the safety during charging.

[0060] The lifting piece 12 is an insulating adhesive tape used to lift the battery from the battery compartment. As shown in the attachment Figure 4 and 5 As shown, the two ends of the lifting piece 12 are respectively provided with a lifting part 121 and an embedding part 122. The embedding part 122 is overlapped and connected with the protection board 11. The injection molding block 13 integrally wraps the outside of the protection board 11 and the embedding part 122, enabling the lifting piece 12 to be integrally fixed on the protection board 11 by means of the embedding part 122. The injection molding block 13 is formed by curing a heated and melted insulating colloid. The lifting part 121 is exposed outside the injection molding block 13 for convenient finger lifting.

[0061] In summary, the present utility model optimizes the installation method of the lifting piece 12, and at the same time changes the installation position and fixing form of the lifting piece 12. The installation position of the lifting piece 12 is changed from the original side setting to the head setting, and its fixing form is changed from the original adhesive fixing to injection molding fixing. That is, the optimized lifting piece 12 is fixed on the protection board 11 by injection molding. The change in the installation method of the lifting piece 12 in the present utility model, on the one hand, will only increase the thickness of one layer of adhesive tape for the battery, and there is a height difference between the battery 1 and the battery cell 2, so the lifting piece 12 will not occupy the battery thickness; on the other hand, it will also separate the lifting piece 12 from the easy-to-tear sticker 3, avoiding the overlapping of the lifting piece 12 and the easy-to-tear sticker 3 resulting in too small an adhesive area of the easy-to-tear sticker 3. Therefore, the optimized lifting piece 12 in the present utility model can increase the adhesive area of the easy-to-tear sticker 3 without increasing the battery thickness.

[0062] In addition, as shown in the attachment Figure 1 As shown, the separation setting method of the lifting piece 12 and the easy-to-tear sticker 3 is easy to simplify the structural design of the easy-to-tear sticker 3 and increase the contact area between the back of the easy-to-tear sticker 3 and the battery compartment. It can not only simplify the die-cutting process of the easy-to-tear sticker 3, reduce the production cost, but also increase the adhesive area of the easy-to-tear sticker 3, making the battery firmly fixed in the battery compartment.

[0063] As shown in the attachment Figure 6 and 7 As shown, the battery 1 further includes a top sealing edge 14 fixedly arranged at the head of the battery cell 2. The top sealing edge 14 is arranged parallel to the lower part of the protection board 11. The embedding part 122 is overlapped between the top sealing edge 14 and the protection board 11. The top sealing edge 14 is embedded in the injection molding block 13, enabling the injection molding block 13 to completely wrap the protection board 11, the embedding part 122, and the top sealing edge 14 in an injection molding fixing manner. As shown in the attachment Figure 7As shown, the connection reliability of the lifting piece 12 is increased.

[0064] In the first specific embodiment, as shown in the attached Figure 6 and 7 figures, the embedding part 122 is a U-shaped structure 1221, and the U-shaped structure 1221 abuts between the top sealing edge 14 and the protection plate 11. The U-shaped structure 1221 includes an upper abutting part 12211 that abuts against the protection plate 11, a lower abutting part 12212 that abuts against the top sealing edge 14, and a vertical connecting part 12213 that is integrally and vertically connected between the upper abutting part 12211 and the lower abutting part 12212; the upper abutting part 12211 and the lower abutting part 12212 are parallel to each other and are distributed in a lower-upper manner. A pouring cavity 12214 is formed at the center of the U-shaped structure 1221 for the hot melt colloid to flow in during injection molding, increasing the contact area between the lifting piece 12 and the injection molding block 13, and enhancing the connection reliability among the protection plate 11, the embedding part 122, and the top sealing edge 14. A glue injection gap 12215 is formed between the upper abutting part 12211 and the head of the battery cell 2. The glue injection gap 12215 is used to guide the hot melt colloid to be injected between the protection plate 11 and the battery cell 2. It can not only allow the lifting piece 12 to pass through but also allow the hot melt colloid to flow in during injection molding, enhancing the connection reliability between the protection plate 11 and the lifting piece 12. The top sealing edge 14 is arranged higher than the back surface of the battery cell 2, so that a notch is formed on the side of the top sealing edge 14 away from the U-shaped structure 1221, and the hot melt colloid solidifies in the notch, increasing the connection strength between the injection molding block 13 and the top sealing edge 14. The widths of the injection molding block 13, the protection block, the U-shaped structure 1221, and the top sealing edge 14 satisfy: the width of the injection molding block 13 > the width of the protection plate 11 > the width of the U-shaped structure 1221 > the width of the top sealing edge 14, ensuring that the injection molding block 13 can completely wrap the protection plate 11, the embedding part 122, and the top sealing edge 14.

[0065] In the first specific embodiment, as shown in the attached Figure 6 and 7 figures, the lifting piece 12 adopts a tail leading-out method, that is, the lifting piece 12 is led out from the side of the injection molding block 13 close to the battery cell 2. The lifting part 121 is a sheet-like structure. The lifting part 121 is led out from the side of the protection plate 11 facing the battery cell 2 to the outside of the injection molding block 13, and the lifting part 121 can be bent and attached to the front surface of the battery cell 2. The tail leading-out method of the lifting piece 12 is suitable for a battery cell 2 with a longer length. Of course, the lifting piece 12 can also be led out perpendicular to the protection plate 11.

[0066] In the first specific embodiment, as shown in the attached Figure 4 figures, the embedding part 122 is formed with a glue injection hole 123 for the hot melt colloid to flow in during injection molding. The injection plastic solidifies in the glue injection hole 123 to form a limiting column. By increasing the contact area between the lifting piece 12 and the injection molding block 13, the lifting piece 12 is prevented from detaching from the injection molding block 13, thereby enhancing the connection strength between the lifting piece 12 and the injection molding block 13.

[0067] In the second specific embodiment, as shown in Figure 11 、 13 and Figure 15, the embedding part 122 is an S-shaped structure 1222. One end of the S-shaped structure 1222 is engaged and fitted with the top sealing edge 14 to ensure a reliable connection between the embedding part 122 and the top sealing plate. The other end of the S-shaped structure 1222 extends closely along the side of the protection plate 11 facing the battery cell 2. When it extends to be flush with the top side surface of the protection plate 11, it is then bent and overlapped on the side of the protection plate 11 away from the top sealing edge 14 (i.e., the top side surface of the protection plate 11). The bending contact surface of the embedding part 122 increases, and the connection among the protection plate 11, the embedding part 122, and the top sealing edge 14 is more reliable.

[0068] The S-shaped structure 1222 includes a bottom layer abutting part 12221 abutting against the bottom side surface of the top sealing edge 14, an intermediate abutting part 12222 abutting against the upper side surface of the top sealing edge 14, an upper layer abutting part 12223 abutting against the upper side surface of the protection plate 11, a right side connecting part 12224 integrally and vertically connected between the bottom layer abutting part 12221 and the intermediate abutting part 12222, and a left side connecting part 12225 integrally and vertically connected between the intermediate abutting part 12222 and the upper layer abutting part 12223. The left side connecting part 12225 and the right side connecting part 12224 are respectively vertically connected to both ends of the intermediate abutting part 12222. The bottom layer abutting part 12221, the right side connecting part 12224, the intermediate abutting part 12222, the left side connecting part 12225, and the upper layer abutting part 12223 are connected in sequence to form the S-shaped structure 1222. The bottom layer abutting part 12221, the right side connecting part 12224, and the intermediate abutting part 12222 are connected in sequence to enclose an engaging groove that is engaged and fitted with the top sealing edge 14. The engaging part is a U-shaped groove and is fixedly engaged with the top sealing edge 14. A glue injection cavity is formed between the intermediate abutting part 12222, the left side connecting part 12225, and the lower side surface of the protection plate 11. That is, an injection molding cavity is formed between the side wall of the engaging groove and the protection plate 11 for the hot melt colloid to flow into during injection molding, so as to enhance the connection strength between the protection plate 11 and the lifting piece 12. A gap is formed between the lifting part 121 and the battery cell 2 for the hot melt colloid to flow into during injection molding, so as to enhance the connection strength between the battery cell 2 and the lifting piece 12.

[0069] In the second specific embodiment, as shown in Figure 8 and 11 to Figure 15, the lifting piece 12 adopts a head leading-out method, that is, the lifting piece 12 is led out from the side of the injection molding block 13 away from the battery cell 2. The lifting part 121 is a sheet-like structure, and the lifting part 121 extends parallel to the side of the protection plate 11 away from the top sealing edge 14 to the outside of the injection molding block 13. With the head leading-out method of the lifting piece 12, the injection molding difficulty is lower and it is easier to be injection molded.

[0070] Compared with the first specific embodiment, the key of the second specific embodiment lies in changing the structure of the embedding part 122, changing from the U-shaped structure 1221 to the S-shaped structure 1222. The structure of the S-shaped structure 1222 is more complex than that of the U-shaped structure 1221, which is reflected in that the S-shaped structure 1222 can increase the contact area between the protection plate 11 and the top sealing edge 14 with the embedding part 122, and also increase the embedding length of the embedding part 122 in the injection molding block 13, thereby increasing the connection strength among the protection plate 11, the embedding part 122 and the top sealing edge 14, and making the fixing of the lifting piece 12 more reliable.

[0071] In the third specific embodiment, as shown in the attached Figure 17 and 18 figure, the lifting piece 12 is led out from the middle, that is, the lifting piece 12 is led out from the top side of the injection molding block 13. The lifting part 121 is a sheet-like structure. The lifting part 121 is vertically intersected with the side of the protection plate 11 away from the top sealing edge 14, and the lifting part 121 extends vertically along the side of the protection plate 11 away from the top sealing edge 14 to the outside of the injection molding block 13, as shown in the attached Figure 17 figure.

[0072] Compared with the second specific embodiment, the key of the third specific embodiment lies in changing the leading-out method of the lifting part 121. The middle leading-out method of the lifting piece 12 can prevent the lifting part 121 from being accidentally pressed into the battery compartment when the battery is installed in the battery compartment, and it is easier to assemble the battery.

[0073] In the fourth specific embodiment, as shown in the attached Figures 20 to 21 figure, the embedding part 122 is an L-shaped structure 1223. One end of the L-shaped structure 1223 is bent and embedded in the injection molding block 13 and clamped between the top sealing edge 14 and the protection plate 11, which can also fix the lifting piece 12 on the protection plate 11 by injection molding.

[0074] In the fourth specific embodiment, the lifting part 121 is a folding structure 1211. As shown in the attached Figures 18 to 19 figure, when the folding structure 1211 is in the folded state, the lifting part 121 adheres to the top side surface of the injection molding block 13, so that the lifting part 121 does not overlap the battery core 2. By using the height difference between the battery core 2 and the battery 1, the lifting part 121 does not occupy the battery thickness, and even can reduce the battery thickness. As shown in the attached Figures 22 to 23 figure, when the folding structure 1211 is in the unfolded state, the lifting part 121 is perpendicular to the top side surface of the injection molding block 13, and the area of the lifting part 121 increases, making it easier to hold and lift the battery core 2.

[0075] The folding structure 1211 is preferably a Z-shaped laminated structure, so that the folding thickness of the folding structure 1211 is thinner and does not occupy the battery thickness. In the folded state, the lifting piece 12 is U-shaped, that is, the L-shaped structure 1223 of the embedding part 122 and the folding structure 1211 of the lifting part 121 are integrally connected to form a U-shaped structure 1221.

[0076] In four specific embodiments, as shown in the appendix Figure 23 it is shown that at least one side of the folding structure 1211 is provided with a cementing ear 1212; when the folding structure 1211 is in a folded state, the cementing ear 1212 is cemented to the top side surface of the injection molding block 13, ensuring that the folding structure 1211 is reliably fixed on the injection molding block 13 during battery assembly, and preventing the folding structure 1211 from unfolding randomly and affecting the battery assembly quality and assembly efficiency. A cementing ear 1212 is symmetrically provided on each side of the folding structure 1211, and an adhesive is inherent on the back surface of the cementing ear 1212.

[0077] Compared with the first specific embodiment, the key in the fourth specific embodiment lies in changing the structure of the embedding part 122. The optimized structure of the embedding part 122 is simpler, easier to be injection-molded and formed, with lower processing difficulty and lower processing cost.

[0078] In the fifth specific embodiment, as shown in the appendix Figures 24 to 25 it is shown that the embedding part 122 overlaps at least one end of the protection board 11, and the lifting part 121 extends from one end of the injection molding block 13 to the outside of the injection molding block 13. When not lifted, the lifting part 121 adheres to the top side of the injection molding block 13. As a preferred embodiment, a lifting piece 12 is symmetrically embedded at each end of the injection molding block 13. Compared with the first specific embodiment, the key in the fifth specific embodiment lies in changing the setting position of the lifting piece 12, changing from side placement to end placement, which can adapt to the protection board 11 with more electronic components installed, increasing the usage scenarios and having better adaptability.

[0079] The present utility model also provides a battery, including the above-mentioned battery 1. The battery 1 is fixed to the head of the battery cell 2. The installation position of the lifting piece 12 is changed, without occupying the battery thickness. Under the condition that the installation space of the battery compartment remains unchanged, the battery capacity can be increased by increasing the battery thickness, and the battery capacity is larger.

[0080] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0081] Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A battery, characterized in that, It includes a protection board (11), a lifting piece (12), an injection molding block (13) and an electric core (2). The protection board (11) is arranged on one side of the electric core (2). Both ends of the lifting piece (12) are respectively provided with a lifting part (121) and an embedding part (122). The embedding part (122) is lap-connected with the protection board (11). The injection molding block (13) integrally covers the outside of the protection board (11) and the embedding part (122), and the lifting part (121) is exposed outside the injection molding block (13).

2. The battery according to claim 1, wherein It further includes a top sealing edge (14) fixed to the head of the electric core (2). The top sealing edge (14) is arranged parallel to the lower part or the side of the protection board (11), and the embedding part (122) is lapped between the top sealing edge (14) and the protection board (11); the top sealing edge (14) is embedded in the injection molding block (13).

3. The battery according to claim 2, characterized in that, The embedding part (122) is of a U-shaped structure (1221). The U-shaped structure (1221) abuts between the top sealing edge (14) and the protection board (11). The U-shaped structure (1221) includes an upper abutting part (12211) abutting against the protection board (11), a lower abutting part (12212) abutting against the top sealing edge (14), and a vertical connecting part (12213) integrally and vertically connected between the upper abutting part (12211) and the lower abutting part (12212). The upper abutting part (12211) and the lower abutting part (12212) are parallel and distributed in a lower-upper manner. An injection molding cavity (12214) for hot melt colloid injection is formed at the center of the U-shaped structure (1221). A glue injection gap (12215) is formed between the upper abutting part (12211) and the head of the electric core (2), and the glue injection gap (12215) is used to guide the hot melt colloid to be injected between the protection board (11) and the electric core (2).

4. The battery according to claim 3, wherein The lifting part (121) is of a sheet-like structure, and the lifting part (121) extends from the side of the protection board (11) facing the electric core (2) to the outside of the injection molding block (13).

5. The battery according to claim 2, characterized in that, The embedding part (122) is of an S-shaped structure (1222). One end of the S-shaped structure (1222) is in snap-fit with the top sealing edge (14), and the other end thereof closely extends along the side of the protection board (11) facing the electric core (2) and is bent and lapped on the side of the protection board (11) away from the top sealing edge (14); The S-shaped structure (1222) includes a bottom contact portion (12221) that abuts against the bottom side surface of the top sealing edge (14), an intermediate contact portion (12222) that abuts against the top side surface of the top sealing edge (14), an upper contact portion (12223) that abuts against the top side surface of the protection plate (11), a right connecting portion (12224) integrally and vertically connected between the bottom contact portion (12221) and the intermediate contact portion (12222), and a left connecting portion (12225) integrally and vertically connected between the intermediate contact portion (12222) and the upper contact portion (12223). The left connecting portion (12225) and the right connecting portion (12224) are respectively and perpendicularly connected to both ends of the intermediate contact portion (12222). The bottom contact portion (12221), the right connecting portion (12224), and the intermediate contact portion (12222) are sequentially connected to form a snap-in groove that is snap-fitted with the top sealing edge (14). A glue injection cavity for injecting a hot melt colloid is formed between the intermediate contact portion (12222), the left connecting portion (12225), and the bottom side surface of the protection plate (11).

6. The battery according to claim 5, wherein The lifting portion (121) is a sheet-like structure, and the lifting portion (121) extends parallel to the side of the protection plate (11) away from the top sealing edge (14) to the outside of the injection molding block (13).

7. The battery according to claim 5, characterized in that, The lifting portion (121) is a sheet-like structure, the lifting portion (121) intersects perpendicularly with the side of the protection plate (11) away from the top sealing edge (14), and the lifting portion (121) extends vertically along the side of the protection plate (11) away from the top sealing edge (14) to the outside of the injection molding block (13).

8. The battery according to claim 3, characterized in that, The embedding portion (122) is formed with a glue injection hole (123).

9. The battery according to claim 2, wherein, The embedding portion (122) is an L-shaped structure (1223), and one end of the L-shaped structure (1223) is embedded in the injection molding block (13) and clamped between the top sealing edge (14) and the protection plate (11).

10. The battery according to claim 9, wherein, The lifting portion (121) is a folding structure (1211); when the folding structure (1211) is in a folded state, the lifting portion (121) adheres to the top side surface of the injection molding block (13); when the folding structure (1211) is in an unfolded state, the lifting portion (121) is perpendicular to the top side surface of the injection molding block (13).

11. The battery according to claim 10, wherein, At least one side of the folding structure (1211) is provided with a cementing ear (1212); when the folding structure (1211) is in the folded state, the cementing ear (1212) is cemented to the top side surface of the injection molding block (13).

12. The battery according to any one of claims 1 to 7, characterized in that, The embedding portion (122) overlaps at least one end of the protection plate (11), and the lifting portion (121) extends from one end of the injection molding block (13) to the outside of the injection molding block (13).

13. An electrical device, characterized in that, Including the battery according to any one of claims 1 to 12.

Images