CN218849556U

CN218849556U - D type 1.5V constant voltage lithium battery

Info

Publication number: CN218849556U
Application number: CN202222538837.4U
Authority: CN
Inventors: 张舒德; 刘满仓; 胡善阳
Original assignee: Shenzhen Pade New Energy Co ltd
Current assignee: Shenzhen Pade New Energy Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-04-11
Anticipated expiration: 2032-09-23

Abstract

The utility model provides a D type 1.5V constant voltage lithium cell relates to battery technology field, solves the technical problem that the difficult processing of 3.7V rechargeable lithium cell that spot welding exists is bad, the mantissa of joining in marriage. The battery comprises single batteries which are AA batteries or AAA batteries, the single batteries are more than two and are connected in parallel to form a battery pack, the negative pole and the positive pole of the battery pack are respectively connected with a voltage reduction protection plate, the voltage reduction protection plate and the single batteries are arranged in a D-shaped steel shell, and a cover cap is arranged on the opening side of the D-shaped steel shell and a sealing ring is arranged between the opening side of the D-shaped steel shell and the cover cap. The AA or AAA battery is selected from a 3.7V rechargeable lithium battery which is not needed in the production process, after the 3.7V rechargeable lithium batteries are connected in parallel, the voltage of the formed battery pack is still 3.7V, and a voltage reduction protective plate is required to be additionally arranged to reduce the voltage of the battery pack to 1.5V. The utility model provides a D type 1.5V constant voltage lithium cell can charge repeatedly and use, and also is lighter than disposable D type battery in weight.

Description

D type 1.5V constant voltage lithium battery

Technical Field

The utility model belongs to the technical field of the battery technique and specifically relates to a D type 1.5V constant voltage lithium cell is related to.

Background

A battery refers to a device that can convert chemical energy into electrical energy, having a positive and a negative electrode, in a portion of the space of a cup, tank or other container or composite container that holds an electrolyte solution and metal electrodes to generate an electrical current.

A disposable D-type battery (the D-type battery is also called a No. 1 battery, generally has a diameter of phi 32.2 and a height of 61.5 mm), cannot be charged, and needs to be replaced by a new battery after being used; meanwhile, the capacity of the disposable D-type battery is generally low, and the weight of the disposable D-type battery is slightly heavy.

The AAA battery is a No. 7 battery, and the battery is cylindrical, 43.6 mm high and 10.1 mm in diameter; AA batteries are also known as size 5 batteries and generally have dimensions of 14mm in diameter and 50mm in height. The No. 5 and No. 7 3.7V rechargeable lithium batteries have small volume and moderate capacity, so the rechargeable lithium batteries are widely used in a plurality of small electric appliances and digital products. In the production process, when the No. 5 (or No. 7) 3.7V rechargeable lithium battery is connected in a spot welding mode, if the spot welding is poor, the No. 5 (or No. 7) 3.7V rechargeable lithium battery is subjected to shelving treatment.

Based on this, the utility model discloses utilize the bad 3.7V rechargeable lithium battery of spot welding to retrieve and make into D type 1.5V constant voltage lithium cell, not only can charge the use repeatedly, moreover, also be lighter than disposable D type battery in weight.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a D type 1.5V constant voltage lithium cell has solved the difficult technical problem who handles of the 3.7V rechargeable lithium cell that the spot welding exists is bad, the mantissa of joining in marriage among the prior art. The utility model provides a plurality of technological effects that preferred technical scheme among a great deal of technical scheme can produce are seen in the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of D type 1.5V constant voltage lithium cell, including battery cell, step-down protection shield, D type steel casing, sealing washer and block, wherein, battery cell is AA battery or AAA battery, battery cell is one, perhaps, battery cell is more than two and each battery cell parallel connection forms the group battery, the negative pole and the positive pole of group battery respectively with the step-down protection shield is connected, the step-down protection shield with battery cell sets up in the D type steel casing, the negative pole end of step-down protection shield with the bottom of D type steel casing is connected, the positive terminal of step-down protection shield with the block is connected, the block sets up the opening side of D type steel casing and be provided with between the two the sealing washer.

Furthermore, the single batteries are AA batteries, and the number of the single batteries is-one; or the single batteries are AAA batteries, and the number of the single batteries is-one.

Furthermore, the single batteries are AA batteries, the number of the single batteries is several, and the AA batteries form a structure in the shape of a Chinese character 'pin'.

Further, the constant voltage lithium cell still includes the support body, the support body cover is established threely outside the battery cell, the support body is tubular structure just the cross sectional shape of support body is "protruding" type, and is three the battery cell clamp is established in the support body.

Further, the bottoms of the three parallel single batteries are adhered to the bottom of the D-shaped steel shell; or, be provided with the elastic deformation slat on the support body, the elastic deformation slat follows the circumference direction of support body distributes, the extrusion of elastic deformation slat the support body with be used for between the D shaped steel shell with the support body is fixed in the D shaped steel shell.

Further, the length of the frame body is smaller than that of the single batteries, anti-skid grains are arranged on the frame body, and radiating holes are distributed in the frame body.

Furthermore, the number of the single batteries is more than two, the single batteries are connected in an adhesive mode, and the bottoms of the single batteries are adhered to the bottom of the D-shaped steel shell.

Further, it is three the battery cell is first battery cell, second battery cell and third battery cell respectively, first battery cell's positive pole with the positive pole of second battery cell all is connected with first pure nickel piece spot welding, first pure nickel piece with the positive pole of third battery cell all is connected with the pure nickel piece spot welding of second, first pure nickel piece with being connected of step-down protection shield.

Further, the negative pole of the first single battery and the negative pole of the second single battery are connected with a third pure nickel piece in a spot welding mode, the third pure nickel piece and the negative pole of the third single battery are connected with a fourth pure nickel piece in a spot welding mode, the third pure nickel piece protrudes out the first single battery and the bottom of the D-shaped steel shell in a spot welding mode, and the negative end of the pressure reduction protection plate is connected with the third pure nickel piece in a spot welding mode.

The utility model provides a D type 1.5V constant voltage lithium cell, including single cell, the step-down protection shield, D type steel casing, sealing washer and block, wherein, single cell is AA battery or AAA battery, single cell is one, perhaps, single cell is more than two and each single cell parallel connection forms the group battery, the negative pole and the positive pole of group battery are connected with the step-down protection shield respectively, the step-down protection shield sets up in D type steel casing with single cell, the negative pole end of step-down protection shield is connected with the bottom of D type steel casing, the positive terminal of step-down protection shield is connected with the block, the block setting is provided with the sealing washer at the opening side of D type steel casing and between the two. The single battery is selected from 3.7V rechargeable lithium batteries with poor spot welding or matched group mantissas in the production process, and after three 3.7V rechargeable lithium batteries are connected in parallel, the voltage of the formed battery pack is still 3.7V, so that a voltage reduction protective plate needs to be additionally arranged to reduce the voltage of the battery pack to 1.5V. The utility model provides a D type 1.5V constant voltage lithium cell realizes not only can charging repeatedly the use, moreover, also is lighter than disposable D type battery in weight.

The utility model discloses preferred technical scheme can also produce following technological effect at least:

through the mode of clamping the single battery in the frame body, the connection mode is simple, and the disassembly and assembly of the single battery are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of three unit batteries connected in parallel according to an embodiment of the present invention;

fig. 2 is a schematic top view of three unit batteries connected in parallel according to an embodiment of the present invention;

fig. 3 is a schematic front view of a voltage-reducing protection plate according to an embodiment of the present invention;

fig. 4 is a schematic front view of a D-type 1.5V constant voltage lithium battery provided by an embodiment of the present invention;

fig. 5 is a schematic front view of three unit batteries connected in parallel according to an embodiment of the present invention (showing a frame body).

Figure 1-cell; 101-a first cell; 102-a second cell; 103-a third single battery; 2-decompression protecting plate; 201-cell positive connection end; 202-cap connection end; 203-negative electrode connecting end; 3-D type steel shell; 4, pressing a cover cap; 5-a frame body; 6-elastically deforming the lath; 7-first pure nickel sheet; 8-second pure nickel sheet; 9-third pure nickel sheet; 10-fourth pure nickel flake.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

The AAA battery is a No. 7 battery, is cylindrical, has the height of 43.6 millimeters and the diameter of 10.1 millimeters; AA batteries, also known as 5 size batteries, typically measure 14mm in diameter and 50mm in height, and 5 and 7 # 3.7V rechargeable lithium batteries, are small and moderate in capacity and are therefore widely used in many small appliances and digital products. In the production process, when the No. 5 (or No. 7) 3.7V rechargeable lithium battery is connected in a spot welding mode, if the spot welding fails, the No. 5 (or No. 7) 3.7V rechargeable lithium battery is subjected to shelving treatment. Based on this, the utility model discloses utilize the spot welding failure or join in marriage the 3.7V rechargeable lithium battery of group mantissa and retrieve and make into D type 1.5V constant voltage lithium cell, not only can charge the use repeatedly, moreover, also be lighter than disposable D type battery in weight.

The concrete structure is as follows: the utility model provides a D type 1.5V constant voltage lithium cell, including single cell 1, step-down protection shield 2, D type steel shell 3, sealing washer and block 4, wherein, single cell 1 is AA battery or AAA battery, single cell 1 is one, or, single cell 1 is more than two and each single cell 1 parallel connection forms the group battery, the negative pole and the positive pole of group battery are connected with step-down protection shield 2 respectively, step-down protection shield 2 sets up in D type steel shell 3 with single cell 1, the negative pole end of step-down protection shield 2 is connected with the bottom of D type steel shell 3, the positive terminal of step-down protection shield 2 is connected with block 4, block 4 sets up the opening side of D type steel shell 3 and is provided with the sealing washer between the two (the output of block 4 is the positive pole, the output of whole D type steel shell 3 is the negative pole, positive pole and negative pole are kept apart by the sealing washer in the middle. The single batteries 1 are AA batteries, and the number of the single batteries 1 is 1 to 3; or, the single batteries 1 are AAA batteries, and the number of the single batteries 1 is 3-7.

Next, a 1.5V constant voltage lithium battery in D-type, which includes three AA batteries, is further described by examples 1 and 2.

Example 1:

the utility model provides a D type 1.5V constant voltage lithium cell, including battery cell 1, step-down protection shield 2, D type steel casing 3, sealing washer and gland lid 4, wherein, battery cell 1 is three and three battery cell 1 parallel connection, parallelly connected three battery cell 1's negative pole and positive pole are connected with step-down protection shield 2 respectively, step-down protection shield 2 sets up in D type steel casing 3 with battery cell 1, step-down protection shield 2's negative pole end is connected with D type steel casing 3's bottom, step-down protection shield 2's positive pole end is connected with gland lid 4, gland lid 4 sets up the opening side at D type steel casing 3 and is provided with the sealing washer between the two. The single battery 1 is a 5 # 3.7V rechargeable lithium battery discarded in the production process, and after three 3.7V rechargeable lithium batteries are connected in parallel, the voltage of the formed battery pack is still 3.7V, so a voltage reduction protection plate 2 needs to be additionally arranged to reduce the voltage of the battery pack to 1.5V. The utility model provides a D type 1.5V constant voltage lithium cell realizes not only can charging repeatedly the use, moreover, also is lighter than disposable D type battery in weight.

The AA battery is also called a 5 battery, and its general size is 14mm in diameter and 50mm in height, and the D battery is also called a 1 battery, and its general diameter is 32.2 mm and height is 61.5mm, so that three unit batteries 1 can be arranged in a delta structure to facilitate the placement of the three unit batteries 1 in the D type steel case 3. The bottom and top of the three cells 1 are flush.

Preferably, the D-type 1.5V constant voltage lithium battery further comprises a frame body 5, the frame body 5 is sleeved outside the three unit batteries 1, the frame body 5 is of a cylindrical structure, the cross section of the frame body 5 is in a convex shape, and the three unit batteries 1 are clamped in the frame body 5. The connection mode is simple by clamping the single battery 1 in the frame body 5.

The bottoms of the three parallel single batteries 1 are adhered to the bottom of the D-shaped steel shell 3; alternatively, it is preferable to set: be provided with elastic deformation slat 6 on the support body 5, elastic deformation slat 6 distributes along the circumferential direction of support body 5, and the extrusion of elastic deformation slat 6 is in order to be used for fixing support body 5 in D shaped steel shell 3 between support body 5 and D shaped steel shell 3. Referring to fig. 5, showing support body 5 and the elastic deformation slat 6 arranged on the support body 5, fixing the support body 5 in the D-shaped steel shell 3 through the elastic deformation slat 6, the connection is simple, and the installation and the disassembly of the support body 5 are convenient.

The length of the frame body 5 is less than that of the single battery 1, and the head and the bottom of the single battery 1 protrude out of the frame body 5; anti-skid grains are arranged on the frame body 5, so that the three single batteries 1 can be conveniently installed in the frame body 5 by holding the frame body 5 by hands; radiating holes are distributed on the frame body 5.

As for the parallel connection of the three unit batteries 1, the following is specific:

referring to fig. 1, three single batteries 1 are respectively a first single battery 101, a second single battery 102 and a third single battery 103, the positive electrode of the first single battery 101 and the positive electrode of the second single battery 102 are both connected with a first pure nickel sheet 7 by spot welding, the positive electrodes of the first pure nickel sheet 7 and the third single battery 103 are both connected with a second pure nickel sheet 8 by spot welding, and the first pure nickel sheet 7 is connected with a voltage-reducing protection plate 2. The first pure nickel plate 7 is connected to the cell positive electrode connection end 201 of the decompression protection plate 2, and the decompression protection plate 2 202 of the decompression protection plate 2 is connected to the capping cap 4.

Referring to fig. 2, the negative electrode of the first unit cell 101 and the negative electrode of the second unit cell 102 are both connected to the third pure nickel plate 9 by spot welding, the negative electrodes of the third pure nickel plate 9 and the third unit cell 103 are both connected to the fourth pure nickel plate 10 by spot welding, the third pure nickel plate 9 protrudes from the first unit cell 101 and is connected to the bottom of the D-shaped steel shell 3 by spot welding, and the negative end (negative connection end 203) of the voltage-reducing protection plate 2 is connected to the third pure nickel plate 9 by spot welding.

Example 2:

the utility model provides a D type 1.5V constant voltage lithium cell, including battery cell 1, step-down protection shield 2, D type steel casing 3, sealing washer and gland lid 4, wherein, battery cell 1 is three and three battery cell 1 parallel connection, parallelly connected three battery cell 1's negative pole and positive pole are connected with step-down protection shield 2 respectively, step-down protection shield 2 sets up in D type steel casing 3 with battery cell 1, the negative pole end of step-down protection shield 2 is connected with D type steel casing 3's bottom, step-down protection shield 2's positive pole end is connected with gland lid 4, gland lid 4 sets up and is provided with the sealing washer at D type steel casing 3's opening side and between the two. The 5 # 3.7V rechargeable lithium battery discarded in the production process is selected as the single battery 1, and after three 3.7V rechargeable lithium batteries are connected in parallel, the voltage of the formed battery pack is still 3.7V, so that a voltage reduction protection plate 2 needs to be additionally arranged to reduce the voltage of the battery pack to 1.5V. The utility model provides a D type 1.5V constant voltage lithium cell realizes not only can charge repeatedly the use, moreover, also is lighter than disposable D type battery in weight.

The a battery is also called a 5 battery, and the general size is 14mm in diameter and 50mm in height, the D battery is also called a 1 battery, and the general size is 32.2 mm in diameter and 61.5mm in height, so three unit batteries 1 can be arranged in a delta structure to facilitate the placement of the three unit batteries 1 in the D-shaped steel shell 3. The bottom and top of the three unit cells 1 are flush.

The three single batteries 1 are connected in an adhesive manner, and the bottoms of the three single batteries 1 connected in parallel are adhered to the bottom of the D-shaped steel shell 3.

referring to fig. 1, three single batteries 1 are respectively a first single battery 101, a second single battery 102 and a third single battery 103, the positive electrode of the first single battery 101 and the positive electrode of the second single battery 102 are connected with a first pure nickel sheet 7 in a spot welding manner, the positive electrodes of the first pure nickel sheet 7 and the third single battery 103 are connected with a second pure nickel sheet 8 in a spot welding manner, and the first pure nickel sheet 7 is connected with a voltage-reducing protection plate 2. The first pure nickel plate 7 is connected to the cell positive electrode connection end 201 of the decompression protection plate 2, and the decompression protection plate 2 202 of the decompression protection plate 2 is connected to the capping cap 4.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A D-type 1.5V constant-voltage lithium battery is characterized by comprising a single battery (1), a decompression protection plate (2), a D-type steel shell (3), a sealing ring and a cover cap (4),

the battery pack is characterized in that the single batteries (1) are AA batteries or AAA batteries, one single battery (1) is adopted, or more than two single batteries (1) are adopted, the single batteries (1) are connected in parallel to form a battery pack, the negative pole and the positive pole of the battery pack are respectively connected with the voltage reduction protection plate (2), the voltage reduction protection plate (2) and the single batteries (1) are arranged in the D-shaped steel shell (3), the negative pole end of the voltage reduction protection plate (2) is connected with the bottom of the D-shaped steel shell (3), the positive pole end of the voltage reduction protection plate (2) is connected with the cap (4), the cap (4) is arranged on the opening side of the D-shaped steel shell (3), and the sealing ring is arranged between the opening side of the D-shaped steel shell (3).

2. The D-type 1.5V constant voltage lithium battery as claimed in claim 1, wherein the single batteries (1) are AA batteries, and the number of the single batteries (1) is 1-3; or the single batteries (1) are AAA batteries, and the number of the single batteries (1) is 3-7.

3. The D-type 1.5V constant voltage lithium battery as claimed in claim 2, wherein the single batteries (1) are AA batteries, the number of the single batteries (1) is 3, and 3 AA batteries form a structure like a Chinese character 'pin'.

4. The D-type 1.5V constant voltage lithium battery as claimed in claim 3, further comprising a frame body (5), wherein the frame body (5) is sleeved outside the three unit batteries (1), the frame body (5) is of a cylindrical structure, the cross-sectional shape of the frame body (5) is of a convex shape, and the three unit batteries (1) are clamped in the frame body (5).

5. The D-type 1.5V constant-voltage lithium battery as claimed in claim 4, wherein the bottoms of three parallel-connected unit batteries (1) are adhered to the bottom of the D-type steel shell (3); or, be provided with elastic deformation slat (6) on support body (5), elastic deformation slat (6) are followed the circumference direction of support body (5) distributes, elastic deformation slat (6) extrusion support body (5) with between D shaped steel shell (3) in order to be used for with support body (5) are fixed in D shaped steel shell (3).

6. The D-type 1.5V constant-voltage lithium battery according to claim 4, wherein the length of the frame body (5) is less than that of the single battery (1), the frame body (5) is provided with anti-skid lines, and the frame body (5) is distributed with heat dissipation holes.

7. The D-type 1.5V constant-voltage lithium battery as claimed in claim 1, wherein the number of the single batteries (1) is more than two, the single batteries (1) are connected in an adhesive manner, and the bottoms of the single batteries (1) are adhered to the bottom of the D-type steel shell (3).

8. The D-type 1.5V constant voltage lithium battery as claimed in claim 3, wherein the three single batteries (1) are a first single battery (101), a second single battery (102) and a third single battery (103), the positive electrode of the first single battery (101) and the positive electrode of the second single battery (102) are connected with a first pure nickel plate (7) through spot welding, the positive electrodes of the first pure nickel plate (7) and the third single battery (103) are connected with a second pure nickel plate (8) through spot welding, and the first pure nickel plate (7) is connected with the voltage reduction protection plate (2).

9. The D-type 1.5V constant voltage lithium battery as claimed in claim 8, wherein the negative electrode of the first unit cell (101) and the negative electrode of the second unit cell (102) are both spot-welded to a third pure nickel plate (9), the negative electrodes of the third pure nickel plate (9) and the third unit cell (103) are both spot-welded to a fourth pure nickel plate (10), the third pure nickel plate (9) protrudes from the first unit cell (101) and is spot-welded to the bottom of the D-type steel shell (3), and the negative end of the voltage-reducing protection plate (2) is spot-welded to the third pure nickel plate (9).