CN212323051U - Rechargeable battery capable of being assembled quickly - Google Patents

Abstract

The utility model discloses a rechargeable battery capable of being assembled quickly, which is characterized in that a contact pin led out from a battery cell body is arranged on a battery cell, and a needle sleeve is arranged on a circuit protection board, so that the battery cell and the circuit protection board can be quickly electrically connected through the insertion and combination of the contact pin and the needle sleeve; set up on anodal apron and extend the connection piece to the circuit protection board to set up a first slot on the circuit protection board, make anodal apron and circuit protection board can realize the electricity fast through inserting of connection piece and first slot and connect, just so can save the process of welding the wire, improve the convenience of electricity connection between electric core, circuit protection board and the anodal apron, reduce the degree of difficulty of rechargeable battery equipment. And, set up the circuit protection board in parallel with the terminal surface of electric core, can significantly reduce the circuit protection board and occupy and the space to can reserve bigger space and set up the electric core of bulky large capacity, improve rechargeable battery's capacity.

Description

Rechargeable battery capable of being assembled quickly

Technical Field

The utility model relates to a rechargeable battery's technical field, in particular to but rapid Assembly's rechargeable battery.

Background

The rechargeable lithium battery mainly comprises two types, one type is an integrated rechargeable battery with a USB charging interface, and the other type is a rechargeable battery with a battery and a charger separated.

The existing rechargeable battery with the USB charging interface generally comprises a shell, an electric core, an integrated circuit protection board (PCBA), a plastic shell, a face shell and a positive terminal, wherein the electric core, the integrated circuit protection board (PCBA), the plastic shell and the face shell are sequentially sleeved on the shell, the integrated circuit protection board is inserted into the plastic shell and is connected with the electric core through a wire, the positive terminal is fixed at one end, away from the electric core, of the face shell and is connected with the integrated circuit protection board through the wire, the shell is connected with the integrated circuit protection board through the wire, so that the positive terminal is the output positive electrode of the battery, and the bottom cover is the output negative electrode of the battery.

The battery has a complex structure and is relatively complex to assemble, particularly the welding difficulty of the lead is high, and the lead is easily extruded and pulled to cause fracture in the assembling process. Moreover, as the integrated circuit protection board is integrated with various electronic components and multifunctional USB charging interfaces, the integrated circuit protection board can occupy a considerable part of battery space, so that the battery capacity is greatly reduced.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model aims at providing a but rapid Assembly's rechargeable battery to improve rechargeable battery's capacity.

In order to achieve the above object, the rechargeable battery capable of being assembled rapidly provided by the present invention comprises a housing, an electric core, a circuit protection board, a plastic cap, and an anode cover plate, wherein the electric core is inserted into the housing, and the plastic cap is inserted into an opening portion of the housing;

the battery cell is provided with a contact pin which is led out from the battery cell body, the circuit protection board is provided with a needle sleeve which is matched with the contact pin, and the battery cell and the circuit protection board are electrically connected through the insertion of the contact pin and the needle sleeve;

the circuit protection board is parallel to the end face of the electric core and is clamped on one side, close to the electric core, of the plastic cap;

the positive cover plate is covered on one side, far away from the battery cell, of the plastic cap and is provided with a connecting sheet which penetrates through the plastic cap and extends towards the circuit protection plate, the circuit protection plate is provided with a slot matched with the connecting sheet, and the positive cover plate is electrically connected with the circuit protection plate through matching of the connecting sheet and the first slot.

Optionally, the circuit protection board is electrically connected with the housing through a negative conductive sheet, the upper end of the negative conductive sheet is inserted into the second slot of the circuit protection board, and the outer side surface of the body of the negative conductive sheet is electrically connected with the inner side surface of the housing in a contact manner.

Optionally, the needle sleeve has a horizontal portion perpendicular to the needle sleeve body, and the horizontal portion is soldered to the pad of the circuit protection board and electrically connected to the circuit protection board.

Optionally, the lower end of the needle sleeve extends towards the battery cell along the axial direction of the needle sleeve main body to form an extension section, and when the battery is assembled, the end of the extension section abuts against the upper end face of the battery cell.

Optionally, an insulating sheet is arranged between the circuit protection board and the upper end face of the battery cell, and the extending section of the needle sleeve penetrates through the insulating sheet and abuts against the upper end face of the battery cell.

Optionally, the lower end of the needle guard has a counter bore structure.

Optionally, the plastic cap has a positioning plate and a back-off plate on the periphery, and the circuit protection board has a positioning groove and a clamping groove on the periphery corresponding to the positioning plate and the back-off plate.

Optionally, a limiting groove is formed in the positioning piece, the upper end face of the circuit protection board abuts against the limiting groove when the circuit protection board is buckled on the plastic cap, and the inverted buckle position of the inverted buckle piece is buckled on the lower end face of the circuit protection board.

Optionally, the upper end surface of the circuit protection board is provided with a USB interface in a perpendicular manner, and the plastic cap and the anode cover plate are respectively provided with an avoidance groove for exposing the upper end port of the USB interface.

Optionally, the avoidance groove on the positive cover plate is larger than the avoidance groove on the plastic cap.

The utility model provides a rechargeable battery, through set up the contact pin of drawing forth from the electric core body on electric core, set up the needle cover with contact pin complex on the circuit protection board to this makes electric core and circuit protection board can realize the electricity through the cooperation of inserting of contact pin and needle cover fast and connect; through set up the connection piece that extends to the circuit protection board on anodal apron to set up one on the circuit protection board and the first slot of connection piece cooperation, make anodal apron and circuit protection board can realize the electricity fast through the interpolation of connection piece and first slot and connect with this. Just so can save the process of welding the wire, simplify the electric connection mode between electric core, circuit protection shield and the anodal apron greatly, improve the three and connect the complex convenience, reduce the degree of difficulty of rechargeable battery equipment, facilitate for improving rechargeable battery packaging efficiency.

And, through setting up the circuit protection board in parallel with the terminal surface of electric core, the space that can significantly reduce the circuit protection board and occupy to can reserve bigger space and set up the electric core of bulky large capacity, improve rechargeable battery's capacity.

And, adopt the joint cooperation between circuit protection board and the plastic cap, during the equipment, can accomplish interconnect with anodal apron, plastic cap, circuit protection board joint in proper order together, improve the convenience of battery equipment greatly, effectively save the equipment time of battery.

Drawings

Fig. 1 is an exploded view of an embodiment of a rapidly assembled rechargeable battery according to the present invention;

fig. 2 is a schematic structural diagram of a charging terminal according to an embodiment of the rapidly assembled rechargeable battery of the present invention;

fig. 3 is a schematic structural diagram of the charging terminal of an embodiment of the rapidly assembled rechargeable battery of the present invention;

fig. 4 is a schematic structural view of the charging end of the rapidly assembled rechargeable battery according to an embodiment of the present invention wrapped with a PVC heat shrinkage film;

fig. 5 is a schematic structural diagram of an electrical connection between a battery cell and a circuit protection board;

FIG. 6 is a schematic view of the structure of the positive cover plate electrically connected to the circuit protection plate;

FIG. 7 is a schematic view of the structure of the lower end surface of the circuit protection board;

FIG. 8 is a schematic view of the structure of the upper end surface of the circuit protection board

FIG. 9 is a schematic view of the installation of the insulation sheet;

fig. 10 is a schematic structural view of the plastic cap being clamped with the circuit protection board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1, 2, 5 and 6 of the specification, an embodiment of the present invention provides a rechargeable battery capable of being assembled quickly, which includes a housing 1, a battery cell 2, a circuit protection board 3, a plastic cap 4, and an anode cover plate 5, wherein the battery cell 2 is inserted into the housing 1, and the plastic cap 4 is inserted into an opening of the housing 1.

The battery cell 2 is provided with a contact pin 21 led out from the body of the battery cell 2, a needle sleeve 31 matched with the contact pin 21 is arranged on the circuit protection board 3, and the battery cell 2 and the circuit protection board 3 are electrically connected through the contact pin 21 and the needle sleeve 31.

The circuit protection board 3 is parallel to the end face of the electric core 2 and is clamped on one side, close to the electric core 2, of the plastic cap 4. The circuit protection board 3 is provided with a charging management chip and electronic elements forming an accessory circuit of the charging management chip, and the charging management chip can realize constant voltage output, charging management and protection and overcurrent and overcharge and overdischarge protection so as to improve intelligent charging and discharging of the rechargeable battery and improve the use safety of the rechargeable battery. In this embodiment, the charging management chip and the electronic component are attached to the circuit protection board 3 in the form of SMT patches, so that the area of the circuit protection board 3 can be effectively reduced, the size of the circuit protection board 3 can be reduced to the same degree as the size of the end face of the battery cell 2, and the circuit protection board 3 can be arranged parallel to the end face of the battery cell 2.

Anodal apron 5 lid connects in the one side that electric core 2 was kept away from to plastic cap 4, and it has the connection piece 5a that passes plastic cap 4 and extend to circuit protection board 3, is equipped with on the circuit protection board 3 with connection piece 5a complex slot, anodal apron 5 is connected with circuit protection board 3 through the cooperation of connection piece 5a and first slot 3 a.

The utility model provides a rechargeable battery through set up on electric core 2 from the outside contact pin 21 of drawing forth of electric core 2 body, set up on circuit protection board 3 with contact pin 21 complex needle cover 31 to this makes electric core 2 and circuit protection board 3 can close the cooperation through the insertion of contact pin 21 and needle cover 31 and realize the electricity fast and be connected. Through set up the connection piece 5a that extends to circuit protection board 3 on anodal apron 5 to set up one on circuit protection board 3 and the first slot 3a of connection piece 5a cooperation, make anodal apron 5 and circuit protection board 3 can realize the electricity fast through the interpolation of connection piece 5a and first slot 3a and connect. Just so can save the process of welding the wire, simplify the electric connection mode between electric core 2, circuit protection shield 3 and the anodal apron 5 greatly, improve the three and connect the complex convenience, reduce the degree of difficulty of rechargeable battery equipment, facilitate for improving rechargeable battery packaging efficiency.

And, through setting up circuit protection shield 3 in parallel with the terminal surface of electric core 2, can significantly reduce circuit protection shield 3 shared and space to can reserve bigger space and set up bulky large capacity's electric core 2, improve rechargeable battery's capacity.

And, adopt the joint cooperation between circuit protection shield 3 and the plastic cap 4, during the equipment, can accomplish interconnect with anodal apron 5, plastic cap 4, circuit protection shield 3 joint together in proper order, improve the convenience of battery equipment greatly, effectively save the equipment time of battery.

As shown in fig. 5, in the present embodiment, a negative conductive sheet 6 is disposed on the peripheral side of the circuit protection board 3, and the upper end of the negative conductive sheet 6 is inserted into the second slot 3b on the peripheral side of the circuit protection board 3, and the lower end thereof extends downward in the axial direction of the battery cell 2. Therefore, when the circuit protection board 3 is inserted into the opening of the casing 1 along with the plastic cap 4, the outer side surface of the body of the negative electrode conductive sheet 6 is in contact with the inner side surface of the casing 1 to form electrical connection, and the negative electrode of the battery is guided to the bottom of the casing 1.

Through set up negative pole conducting strip 6 with the form of pegging graft in week side at circuit protection board 3, can remove the loaded down with trivial details of negative pole conducting strip 6 welding on circuit protection board 3 from, facilitate for the battery equipment.

In addition, as shown in fig. 1, in this embodiment, an insulating rubber sheet 11 is disposed at the bottom of the battery cell 2, and when the battery cell 2 is inserted into the casing 1, the battery cell 2 is fixed in the casing 1 through the insulating rubber sheet 11, so as to prevent the battery cell 2 from rotating relative to the casing 1.

In addition, as shown in fig. 1 and 4, the exterior of the case 1 is wrapped with a PVC heat shrink film 7 to protect the battery.

Preferably, as shown in fig. 5, in the present embodiment, the upper end portion of the negative conductive sheet 6 has a hook-shaped portion 6a, and the negative conductive sheet 6 can be hung on the circuit protection board 3 through the hook-shaped portion 6a, so as to improve the firmness of the matching between the negative conductive sheet 6 and the circuit protection board 3 and ensure a stable electrical connection therebetween.

Alternatively, as shown in fig. 5, in this embodiment, the needle sheath 31 has a horizontal portion 31a perpendicular to the main body of the needle sheath 31, and the horizontal portion 31a is soldered to the pad of the circuit protection board 3 to be electrically connected to the circuit protection board 3. Through set up horizontal part 31a on needle cover 31 to improve the joint strength of needle cover 31 and circuit protection board 3, make circuit protection board 3 realize stable connection cooperation through the inseparable interpolation of needle cover 31 and contact pin 21, difficult production is not hard up, facilitates for rechargeable battery's whole equipment.

Preferably, as shown in fig. 7, in this embodiment, the lower end of the needle sleeve 31 extends toward the electric core 2 along the axial direction of the main body of the needle sleeve 31 to form an extension 31 b. During the equipment, the tip butt of this extension 31b of needle cover 31 is at the upper end of electric core 2 to keep certain interval with electric core 2, avoid extruding electric core 2 in assembling process, and avoid circuit protection board 3 and electric core 2 direct contact and cause rechargeable battery short circuit, improve rechargeable battery's security performance. Meanwhile, the extension section 31b of the needle sleeve 31 can also increase the length of the insertion fit between the needle sleeve 31 and the insertion pin 21, so that the tightness of the fit between the needle sleeve 31 and the insertion pin 21 is improved, and the connection strength and the electric connection stability between the circuit protection board 3 and the battery core 2 are further improved.

Still further, as shown in fig. 7, in the present embodiment, the lower end portion of the needle sleeve 31 has a counter bore structure 31c to provide a location for the insertion pin 21 to be inserted into the needle sleeve 31, so as to improve the convenience of connecting and matching the circuit protection board 3 and the electric core 2. Meanwhile, in this embodiment, the counter bore structure 31c is in a circular truncated cone shape, and can increase the area of the lower end surface of the needle sleeve 31 to increase the contact area between the needle sleeve 31 and the battery cell 2, and reduce the risk of deformation of the battery cell 2 caused by too large assembling force between the needle sleeve 31 and the battery cell 2.

Still further, as shown in fig. 9, in the present embodiment, an insulating sheet is provided between the circuit protection plate 3 and the upper end surface of the battery cell 2, and the extension 31b of the needle sheath 31 passes through the insulating sheet 22 and abuts against the upper end surface of the battery cell 2. Through set up insulating piece 22 between circuit protection board 3 and electric core 2 to form absolute insulating relation between assurance circuit protection board 3 and electric core 2, avoid the intercommunication between the two to cause the battery short circuit.

Alternatively, as shown in fig. 3 and fig. 5, in the present embodiment, the USB interface 32 is vertically disposed on the upper end surface of the circuit protection board 3, and the plastic cap 4 and the positive electrode cover plate 5 are respectively provided with an avoiding groove 4a and an avoiding groove 5b for exposing the upper end port of the USB interface 32. The USB interface 32 is used to connect an external power supply to charge the battery cell 2. The USB interface 32 is vertically disposed on the circuit protection board 3, so that the circuit protection board 3 and the plastic cap 4 can be connected together by coaxial insertion, thereby improving the convenience of battery assembly.

In this embodiment, the port of the USB interface 32 is designed as a non-guiding interface, that is, the USB interface 32 is linear as a whole, and the port is not folded outwards. Thereby facilitating the smoother buckling of the circuit protection board 3 on the plastic cap 4.

Preferably, as shown in fig. 3, in the present embodiment, the avoiding groove 5b on the positive electrode cover plate 5 is larger than the avoiding groove 4a on the plastic cap 4, so as to avoid the charging head plugged on the USB interface 32 from forming a contact electrical connection with the positive electrode cover plate 5, thereby causing a charging safety hazard.

As shown in fig. 8 and 10, in the present embodiment, the plastic cap 4 has a positioning piece 4b and an inverted piece 4c on the periphery, and the circuit protection board 3 has a positioning groove 3c and a locking groove 3d on the periphery corresponding to the positioning piece 4b and the inverted piece 4 c. Because the USB interface 32 is opposite to the avoiding groove 4a on the plastic cap 4, the positioning piece 4b is disposed on the peripheral side of the plastic cap 4, so that the avoiding groove 4a on the USB interface 32 and the plastic cap 4 can be aligned accurately. The reverse buckle piece 4c is arranged on the peripheral side of the plastic cap 4, so that the plastic cap 4 and the circuit protection board 3 are clamped.

And, through setting up the week side at plastic cap 4 with back-off piece 4c to in the axial setting along plastic cap 4, in order to realize plastic cap 4 and circuit protection board 3 along the axial joint cooperation of battery, reduce the complexity of joint structure between the two, facilitate for the cooperation of both in narrow and small space. The circuit protection board 3 can be arranged on the inner ring side of the plastic cap 4, and the circuit protection board 3 can be protected to a certain extent.

As shown in fig. 10, in the present embodiment, the positioning piece 4b is provided with a limiting groove 4d, and when the circuit protection board 3 is fastened to the plastic cap 4 during battery assembly, the upper end surface of the circuit protection board 3 abuts against the limiting groove 4d, and the reverse position of the reverse piece 4c is fastened to the lower end surface of the circuit protection board 3.

Therefore, the circuit protection board 3 is limited at the lower end part of the plastic cap 4 by arranging the limiting groove 4d on the positioning sheet 4b, so as to provide a certain heat dissipation space for the circuit protection board 3. And, can also guarantee the stability of circuit protection board 3 and plastic cap connection complex.

The above is only the preferred embodiment of the present invention, not used in the present invention, and any slight modifications, equivalent replacements and improvements made by the technical entity of the present invention to the above embodiments should be included in the protection scope of the technical solution of the present invention.

Claims (10)

1. A rechargeable battery capable of being assembled quickly is characterized by comprising a shell, an electric core, a circuit protection board, a plastic cap and an anode cover plate, wherein the electric core is inserted in the shell, and the plastic cap is inserted in an opening part of the shell;

the battery cell is provided with a contact pin which is led out from the battery cell body, the circuit protection board is provided with a needle sleeve which is matched with the contact pin, and the battery cell and the circuit protection board are electrically connected through the insertion of the contact pin and the needle sleeve;

the circuit protection board is parallel to the end face of the electric core and is clamped on one side, close to the electric core, of the plastic cap;

the positive cover plate is covered on one side, far away from the battery cell, of the plastic cap and is provided with a connecting sheet which penetrates through the plastic cap and extends towards the circuit protection plate, the circuit protection plate is provided with a slot matched with the connecting sheet, and the positive cover plate is electrically connected with the circuit protection plate through matching of the connecting sheet and the first slot.

2. The rechargeable battery capable of being assembled quickly as claimed in claim 1, wherein the circuit protection board is electrically connected to the housing through a negative conductive sheet, an upper end of the negative conductive sheet is inserted into the second slot of the circuit protection board, and an outer side surface of a body of the negative conductive sheet is electrically connected to an inner side surface of the housing in a contact manner.

3. The rechargeable battery pack capable of being quickly assembled as claimed in claim 1, wherein the needle sheath has a horizontal portion perpendicular to the main body of the needle sheath, and the horizontal portion is soldered to the pad of the circuit protection board and electrically connected to the circuit protection board.

4. The rechargeable battery capable of being assembled quickly as claimed in claim 3, wherein the lower end of the needle sleeve extends toward the electric core along the axial direction of the needle sleeve main body to form an extension section, and when the battery is assembled, the end of the extension section abuts against the upper end face of the electric core.

5. The rechargeable battery of claim 4, wherein an insulating sheet is disposed between the circuit protection board and the upper end surface of the battery cell, and the extension of the needle sleeve is abutted against the upper end surface of the battery cell through the insulating sheet.

6. The quick-fit rechargeable battery of claim 5, wherein the lower end of the needle hub has a counter-bore configuration.

7. The rechargeable battery pack of claim 1, wherein the plastic cap has a positioning plate and a reverse-locking plate on the periphery thereof, and the circuit protection board has a positioning groove and a locking groove on the periphery thereof corresponding to the positioning plate and the reverse-locking plate.

8. The rechargeable battery of claim 7, wherein the positioning plate is provided with a limiting groove, the upper end surface of the circuit protection plate abuts against the limiting groove when the circuit protection plate is fastened on the plastic cap, and the reverse fastening position of the reverse fastening plate is fastened on the lower end surface of the circuit protection plate.

9. The rechargeable battery with the quick assembly function as claimed in any one of claims 1 to 8, wherein a USB port is vertically disposed on the upper end surface of the circuit protection board, and an avoiding groove for exposing the upper end port of the USB port is disposed on each of the plastic cap and the positive cover plate.

10. The quick-assemblable rechargeable battery as claimed in claim 9, wherein the escape groove on the positive electrode cap plate is larger than the escape groove on the plastic cap.

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