WO2016101701A1

WO2016101701A1 - Improved rechargeable battery assembly

Info

Publication number: WO2016101701A1
Application number: PCT/CN2015/093143
Authority: WO
Inventors: 商晓东; 赵卿舒; 赵舒浩
Original assignee: 商晓东
Priority date: 2014-12-23
Filing date: 2015-10-29
Publication date: 2016-06-30
Also published as: CN104538578A

Abstract

Disclosed is an improved rechargeable battery assembly, comprising: a charging battery body provided with a positive terminal and a negative terminal; a power connector plug comprising a plug end and a connection sleeve fixedly connected to the plug end, a first magnetic substance being fixed to the connection sleeve; a PCB board electrically connected to the positive terminal and the negative terminal, a gold finger electrically connected to the PCB board being disposed on the PCB board; a battery cap assembly comprising a cap body and a positive connecting piece, the cap body being a magnetizer or a second magnetic substance magnetically attracted to the first magnetic substance, and the cap body being detachably fixed to the power connector plug; an end of the positive connecting piece has an elastic and electrical contact with the gold finger, and another end thereof forms a convex part. The present invention realizes easy assembly of the battery cap assembly, and ensures a reliable and stable electrical connection between the battery cap assembly and the PCB board, such that the rechargeable battery assembly operates stably.

Description

Improved rechargeable battery pack

Technical field

The present invention relates to the field of battery technology, and more particularly to an improved rechargeable battery assembly.

Background technique

As one of the most common power supply devices, batteries are widely used in a variety of portable electronic products such as razors, remote controls, wireless mice or keyboards, camcorders, and MP3, MP4 and other devices. The battery includes a disposable battery and a rechargeable battery, and the rechargeable battery can be repeatedly charged and discharged compared to a disposable battery that cannot be repeatedly charged. Since the total utilization cost of the rechargeable battery is low and the environment is less polluted, It has been more widely used than disposable batteries.

A common rechargeable battery includes a charger that is externally coupled to a rechargeable battery, and a charging circuit (referred to as a rechargeable battery pack) that is integral with the rechargeable battery is directly connected to the power source. It is charged. Compared with the external charging device, the built-in charging circuit can be carried directly and the rechargeable battery connected to the power supply is more convenient and less expensive.

The Chinese invention patent No. 200580040272.3 discloses a rechargeable battery assembly, and the invention patent (hereinafter referred to as Patent 1) rechargeable battery assembly can be folded and used to supply power to the load through the protrusion discharge on the cap. When charging, it is connected to the USB port of the computing device or the peripheral device through the USB port of the rechargeable battery assembly, and the rechargeable battery unit is charged by the computing device or the peripheral device instead of charging with the AC power source, thereby improving the rechargeable battery. life.

However, this patent 1 has the following disadvantages:

The patent 1 discloses that the protrusion forms an electrical connection between the first terminal connection and the rechargeable battery unit, thereby forming a bypass of the data and power connector plug recharging circuit, the battery assembly is connected to the first terminal and the second The load between the terminals transfers current, which is achieved as power to the load. This patent uses the recharging circuit as a bypass when powering the load, that is, the rechargeable circuit is used only when charging the rechargeable battery unit, reducing the utilization of components in the rechargeable battery assembly. The complexity of the structure of the rechargeable battery assembly is increased, and the second terminal passes through the data and the power connector plug may touch the recharging circuit or the positioning with the first terminal is inaccurate, so that the rechargeable battery assembly is unstable. .

The Chinese invention patent No. 201210071612.0 discloses a rechargeable battery assembly, and the third terminal of the invention patent (hereinafter referred to as Patent 2) is positioned by the insulating sheet and the second positive terminal, and assembly is difficult, and the third terminal is The gold finger connected to the second positive terminal is a hard contact, so it is susceptible to external vibration and causes poor contact, poor conductivity, and even loose. In addition, the battery cap assembly is inserted through a tight fit or a clearance fit. The plug end is easy to loose, and after the battery cap assembly is removed, it needs to be connected to the rechargeable battery body through the wire rope, otherwise it is easy to be lost, and when the plug end is inserted into the external USB, the battery cap assembly will hang under the rechargeable battery body, giving The insertion of other terminal devices into adjacent USB ports is a hindrance and is inconvenient to use.

Summary of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide an improved rechargeable battery assembly, which realizes convenient assembly and disassembly of the battery cap assembly and ensures the battery cap group. The reliable and stable electrical connection between the device and the PCB enables stable operation of the rechargeable battery pack.

The object of the present invention is achieved by the following technical solutions:

Improved rechargeable battery packs, including:

Recharging the battery body, the rechargeable battery body is provided with a positive terminal and a negative terminal;

a power connector plug, the power connector plug includes a plug end and a connecting sleeve fixed to the plug end, the connecting sleeve is fixedly connected to one end of the rechargeable battery body having a negative terminal, the first magnetic body is fixed on the connecting sleeve, and the plug end is fixed Used to connect with an external USB port;

a PCB board electrically connected to the positive terminal and the negative terminal for controlling charging and discharging of the rechargeable battery body, wherein the PCB board is installed in the power connector plug, and the PCB board is provided with the PCB board Connected golden finger;

a battery cap assembly comprising a cap body and a positive electrode connector, the cap body being a magnetizer or a second magnetic body magnetically attracted to the first magnetic body, the second magnetic body being magnetic with the rechargeable battery body The cap body is detachably fixed to the power connector plug; one end of the positive electrode connector is in elastic electrical contact with the gold finger, and the other end of the positive electrode connector protrudes from the cap body to form a convex portion outside the cap body.

Preferably, the first magnetic body is a magnet, and the magnet is fixed on an end surface of the connecting sleeve away from the charging battery body, and the magnet is disposed in the cap body.

Preferably, the cap body has a hollow tubular shape inside and is enclosed on the outer circumference of the plug end. The magnets are more than one, and each magnet has an arc-shaped wall that fits the inner wall of the cap body.

Preferably, the positive electrode connector comprises a positive electrode connector and a positive electrode connecting cap, and the positive electrode connecting cap protrudes from the cap body to the outside of the cap body to form the convex portion, and one end of the positive electrode connector is The positive connection cap is fixed and electrically connected, and the other end of the positive connector is elastically coupled and electrically connected to the surface of the gold finger.

Preferably, the positive connector includes a tip end and a resilient end leg, the end end is fixedly and electrically connected to the positive electrode connecting cap; the elastic end leg is wavy and has a bulge arching to the gold finger, the arching The portion is in electrical contact with the surface of the gold finger, elastically fits along the normal surface of the gold finger, and is in sliding engagement with the surface of the gold finger.

Preferably, one end of the cap body remote from the charging battery body is provided with a snap ring, and the positive connecting cap includes the convex portion and an annular flange at the end of the convex portion, and a ring is arranged between the positive connecting cap and the snap ring The cover sheet, the convex portion sequentially passes through the annular cover sheet and the snap ring and protrudes out of the outer surface of the cap. The outer diameter of the annular flange is larger than the inner diameter of the annular cover sheet.

Preferably, the plug end comprises a plug frame and a metal sleeve disposed on a periphery of the insert frame, the metal sleeve is U-shaped, and the first side surface and the insert frame are fixedly connected by the matched first buckle structure, the first The two sides and the insert are fixedly connected by the matched second snap structure, wherein the height of the first side is equal to the height of the insert, the height of the second side is greater than the height of the first side and smaller than the outer shell of the external USB port the height of.

Preferably, the improved rechargeable battery assembly includes a positive contact piece connected between the positive electrode terminal and the PCB board, a negative electrode contact piece connected between the negative electrode terminal and the PCB board, and a use a separator for preventing a short circuit caused by contact between the positive electrode tab and the negative electrode contact pad, the separator is matched with a transverse cross section of the rechargeable battery body, the separator is fixed between the rechargeable battery body and the connecting sleeve, and the positive electrode contact is passed through The card slot provided in the partition plate is connected between the positive electrode terminal and the PCB board, and the negative electrode contact piece is connected between the negative electrode terminal and the PCB board along the outer wall edge of the partition plate.

Compared with the prior art, the beneficial effects of the present invention are:

Before the battery cap assembly is removed, the battery cap assembly can be formed by the negative terminal and the convex portion of the body of the rechargeable battery body to form a power supply mode similar to that of a common battery such as AAA, AA, C, and D. After the power connector plug can be used to discharge the terminal with the external USB port, and the external battery can be charged by the external terminal through the power connector plug, thereby improving the utilization rate of the charge and discharge in the PCB. It is also possible to keep the positive electrode connector in elastic electrical contact with the gold finger before the battery cap assembly is removed, which is equivalent to maintaining reliable discharge and stability of the rechargeable battery assembly through the convex portion and the negative electrode terminal, and preventing vibration. The invention has stable and reliable work, prolongs the service life, greatly improves the production efficiency and the yield in the production, and improves the production capacity;

At the same time, the elastic electrical contact mounting method also forms a foreseeable easier assembly and disassembly of the battery cap assembly, and the assembled battery cap assembly can be coupled with the first magnetic body to further strengthen the positive electrode connector and the gold finger. Elastic electrical contact, while also preventing the battery cap assembly from loosening, the removal of the removed battery cap assembly, when the cap is set to the second magnetic body, can also be coupled with the rechargeable battery body, thus replacing the traditional use The wire rope improves the flexibility and convenience of use, and can effectively prevent the battery cap assembly from being lost.

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

DRAWINGS

1 is an exploded perspective view of a rechargeable battery assembly of the present invention;

2 is a schematic view showing a first discharge structure of the rechargeable battery assembly of the present invention;

3 is a schematic view showing the cooperation relationship between the positive electrode connector and the gold finger of the rechargeable battery assembly of the present invention;

4 is a schematic diagram of a second discharge structure or recharging structure of the rechargeable battery assembly of the present invention.

In the figure: 1, rechargeable battery body; 11, positive terminal; 12, negative terminal; 2, power connector plug; 21, plug end; 211, insert frame; 212, metal casing; 22, connecting sleeve; a magnetic body; 231, curved wall; 3, PCB board; 31, gold finger; 4, battery cap assembly; 41, cap body; 411, snap ring; 42, positive connection; 421, convex; 422, positive Connector; 423, positive connection cap; 424, tip; 425, elastic end leg; 426, arched portion; 427, annular flange; 43, annular cover piece; 5, positive contact piece; 6, negative contact piece; 7, partition; 71, card slot.

detailed description

In a preferred embodiment of the invention, the improved rechargeable battery assembly is preferably cylindrical in shape and has the same shape as a conventional AAA, AA, C, D, and the like battery. Also, in the preferred embodiments for illustrating and explaining the scope of the present invention and the description of the drawings, if only described as a USB port, it refers to the USB port of the computing device or the USB port of the terminal device.

The improved rechargeable battery assembly shown in FIGS. 1 to 3 includes: a rechargeable battery body 1, a power connector connector 2, a PCB board 3, and a battery cap assembly 4, wherein;

Recharging the battery body 1, the rechargeable battery body 1 is provided with a positive terminal 11 and a negative terminal 12;

a power connector plug 2 including a plug end 21 and a connecting sleeve 22 fixed to the plug end 21, the connecting sleeve 22 being fixed to one end of the rechargeable battery body 1 having the negative terminal 12, the connecting sleeve 22 The first magnetic body 23 is fixed, and the plug end 21 is used for mating connection with an external USB port;

a PCB board 3 electrically connected to the positive terminal 11 and the negative terminal 12 for controlling charging and discharging of the rechargeable battery body 1 , the PCB board 3 being mounted in the power connector plug 2 , the PCB board 3 a gold finger 31 electrically connected to the PCB board 3 is disposed thereon;

a battery cap assembly 4 including a cap body 41 and a positive electrode connecting member 42 , the cap body 41 being a magnet or a second magnetic body magnetically attracted to the first magnetic body 23 , the second magnetic body The battery body 1 can be magnetically attracted, and the cap body 41 is detachably fixed to the power connector plug 2; one end of the positive electrode connector 42 is in elastic electrical contact with the gold finger 31, and the other end of the positive electrode connector 42 is capped. The body 41 projects out to the outside of the cap 41 to form a convex portion 421.

The preferred embodiment of the present invention can realize two kinds of discharge functions and one charging function, respectively, a first discharge structure discharged through the battery cap assembly 4, a second discharge structure for supplying power to the terminal device through the power connector plug 2, and The power connector plug 2 is a recharging structure for charging the rechargeable battery body 1. Correspondingly, a charging and discharging circuit can be generally disposed on the PCB board 3, and more specifically can be divided into a charging circuit and a discharging circuit, and a first positive terminal, a first negative terminal, a second positive terminal, and a second positive terminal are disposed on the charging and discharging circuit. A second negative terminal, wherein the second positive terminal is electrically connected to the gold finger 31.

In the first discharge structure, as shown in FIG. 2 , the first positive terminal is electrically connected to the positive terminal 11 , the first negative terminal is electrically connected to the negative terminal 12 , and the second positive terminal is electrically connected to the positive electrode connector 42 . The convex portion 421 provides a current; in the recharging structure, the battery cap assembly 4 is removed. As shown in FIG. 4, the power connector plug 2 is connected to the USB port, and the gold finger 31 is electrically connected to the positive pin of the USB port. The external computing device charges the rechargeable battery body 1 through the power connector plug 2 through the charging and discharging circuit; in the second discharge structure, The battery cap assembly 4 is removed. As shown in FIG. 4, the power connector plug 2 is connected to the USB port, the gold finger 31 is electrically connected to the positive pin of the USB port, and the rechargeable battery body 1 is charged through the power connector plug 2. The discharge circuit charges the terminal device.

As a preferred embodiment, as shown in FIG. 1, the first magnetic body 23 is a magnet that is fixed to the end face of the connecting sleeve 22 away from the rechargeable battery body 1, and the magnet is disposed in the cap body 41. The magnet can be magnetically attracted to the cap body 41 to facilitate the attachment and detachment of the battery cap assembly 4. When the cap body 41 is set as the second magnetic body, the cap body 41 can also be sucked on the rechargeable battery body 1, and the positive electrode terminal 11 and the negative electrode terminal 12 of the rechargeable battery body 1 are generally made of an iron material as a conductive metal.

In order to further enhance the force of the magnetic attraction and maintain a good degree of firmness, the cap body 41 has a hollow tubular shape inside and is enclosed on the outer circumference of the plug end 21, and the magnet is more than one, as shown in FIG. Each of the magnets has an arcuate wall 231 that fits snugly against the inner wall of the cap 41. The arcuate wall 231 mates with the inner wall of the cap 41 to prevent the cap 41 from being shaken or loose.

For further assembly, as shown in FIG. 1, the positive electrode connector 42 includes a positive electrode connector 422 and a positive electrode connecting cap 423. The positive electrode connecting cap 423 protrudes from the inside of the cap body 41 toward the cap body 41 to form the convex portion 421, and the positive electrode is connected. One end of the 422 is fixedly and electrically connected to the positive connection cap 423, and the other end of the positive connector 422 is elastically and electrically connected to the surface of the gold finger 31. When assembling, the positive electrode connecting cap 423 can be directly fixed, and then the positive electrode connector 422 is fixed, which is easy to form a quick alignment with the gold finger 31.

The elastic electrical contact manner of the positive electrode connector 42 and the gold finger 31 is preferably as shown in FIG. 3, the positive electrode connector 422 includes a tip end 424 and an elastic end leg 425, and the end 424 is The positive connection cap 423 is fixed and electrically connected; the elastic end leg 425 has a wave shape and has a bulging portion 426 arched toward the gold finger 31, and the bulging portion 426 is in electrical contact with the surface of the gold finger 31 along the gold finger 31. The normal elastic fit of the surface is in sliding engagement with the surface of the gold finger 31. The elastic force formed by the arched portion 426 maintains the adhesion to the surface of the gold finger 31. The positive electrode connecting member 42 of the present example is made of copper material to improve the conduction performance and reduce heat generation. At the same time, since the positive electrode connecting member 42 is only in elastic contact with the gold finger 31, it is not necessary to provide the elastic end piece 425 which is too long, which saves more. Copper material to reduce costs.

In order to further facilitate the installation and disassembly, and prevent foreign matter from falling into the cap body 41, as shown in FIG. 1, a cap ring 411 is disposed at one end of the cap body 41 away from the rechargeable battery body 1, and the positive electrode connecting cap 423 includes the The convex portion 421 and the annular flange 427 at the end of the convex portion 421 are provided with an annular cover sheet 43 between the positive connecting cap 423 and the snap ring 411. The convex portion 421 is sequentially extended through the annular cover sheet 43 and the snap ring 411. Outside the cap body 41, the outer diameter of the annular flange 427 is larger than the inner diameter of the annular cover sheet 43, so as to form a loop-and-loop fastening manner, which facilitates assembly and disassembly.

The plug end 21 of the present embodiment includes a socket 211 and a metal sleeve 212 disposed on the periphery of the insert frame 211. The metal sleeve 212 is U-shaped, and the first side surface and the insert frame 211 pass through the matched first buckle structure. a fixed connection, the second side thereof and the insert frame 211 are fixedly connected by the matched second snap structure, wherein the height of the first side is equal to the height of the insert 211, and the height of the second side is greater than the height of the first side And less than the height of the outer USB port's outer casing. The metal casing 212 is connected to the outer casing of the USB port to increase the strength of the power connector plug 2 or the entire improved rechargeable battery assembly to enhance the strength and safety.

More specifically, the improved rechargeable battery assembly includes a positive contact piece 5 connected between the positive electrode terminal 11 and the PCB board 3, and a negative electrode contact piece connected between the negative electrode terminal 12 and the PCB board 3. 6. A spacer 7 for preventing a short circuit caused by contact between the positive electrode tab 5 and the negative electrode contact 6, wherein the spacer 7 is matched with a lateral cross section of the rechargeable battery body 1, and the spacer 7 is fixed to the rechargeable battery body Between the connecting sleeve 22 and the connecting sleeve 22, the positive electrode tab 5 is connected between the positive terminal 11 and the PCB board 3 through the card slot 71 provided in the partition plate 7, and the negative electrode contact piece 6 is connected along the outer wall edge of the partition plate 7. Between the negative terminal 12 and the PCB board 3. The partition plate 7 can prevent the PCB board 3 from falling directly onto the rechargeable battery body 1 to connect the charging and discharging circuit on the PCB board 3 to the positive terminal 11 and the negative terminal 12 to cause confusion of the circuit, wherein the card slot 71 is used for the PCB. The card of the board 3 is inserted and fixed.

The above embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention belong to the present invention. The scope of the claim.

Claims

An improved rechargeable battery assembly, comprising:

Recharging the battery body, the rechargeable battery body is provided with a positive terminal and a negative terminal;

a power connector plug, the power connector plug includes a plug end and a connecting sleeve fixed to the plug end, the connecting sleeve is fixedly connected to one end of the rechargeable battery body having a negative terminal, the first magnetic body is fixed on the connecting sleeve, and the plug end is fixed For connecting with an external USB port; the PCB board is electrically connected to the positive terminal and the negative terminal for controlling charging and discharging of the rechargeable battery body, and the PCB board is installed in the power connector plug, the PCB a gold finger electrically connected to the PCB board; a battery cap assembly comprising a cap body and a positive electrode connector, the cap body being a magnetizer or a second magnetically attracted to the first magnetic body a magnetic body, the second magnetic body is magnetically coupled to the rechargeable battery body, the cap body is detachably fixed to the power connector plug; one end of the positive electrode connector is in elastic electrical contact with the gold finger, and the other end of the positive electrode connector Extending from the inside of the cap to the outside of the cap forms a convex portion.
The improved rechargeable battery assembly according to claim 1, wherein the first magnetic body is a magnet, and the magnet is fixed to an end face of the connecting sleeve remote from the main body of the rechargeable battery, and the magnet is disposed in the cap body.
The improved rechargeable battery assembly according to claim 2, wherein the cap body has a hollow tubular shape inside and is enclosed on the outer circumference of the plug end, and the magnets are more than one, and each of the magnets has a The inner wall of the cap fits the matching curved wall.
The improved rechargeable battery assembly according to any one of claims 1 to 3, wherein the positive electrode connector comprises a positive electrode connector and a positive electrode connecting cap, and the positive electrode connecting cap is extended from the cap body to the outside of the cap body. The convex portion, one end of the positive connector is connected to the positive electrode The cap is fixed and electrically connected, and the other end of the positive connector is elastically and electrically connected to the surface of the gold finger.
The improved rechargeable battery assembly according to claim 4, wherein said positive connector comprises a terminal end and an elastic end leg, and the end is fixedly and electrically connected to the positive electrode connecting cap; the elastic end leg is wavy And having a bulging portion that is arched toward the gold finger, the bulging portion is in electrical contact with the surface of the gold finger, elastically fits along the normal direction of the surface of the gold finger, and is in sliding engagement with the surface of the gold finger.
The improved rechargeable battery assembly according to claim 5, wherein a cap away from the end of the cap body of the rechargeable battery body is provided with a snap ring, the positive connecting cap including the convex portion and the edge of the convex portion The annular flange is provided with an annular cover sheet between the positive connecting cap and the snap ring. The convex portion sequentially passes through the annular cover sheet and the snap ring and protrudes out of the outer surface of the cap. The outer diameter of the annular flange is larger than the inner diameter of the annular cover sheet.
The improved rechargeable battery assembly according to any one of claims 1 to 3, wherein the plug end comprises a plug frame and a metal sleeve disposed on a periphery of the insert frame, and the metal sleeve is U-shaped. The first side and the insert are fixedly connected by the matching first snap structure, and the second side thereof and the insert are fixedly connected by the matched second snap structure, wherein the height of the first side is equal to the insert The height of the second side is greater than the height of the first side and less than the height of the outer USB port.
The improved rechargeable battery assembly according to any one of claims 1 to 3, wherein the improved rechargeable battery assembly comprises a positive electrode contact connected between the positive terminal and the PCB Connected between the negative terminal and the PCB board a negative electrode contact, and a separator for preventing a short circuit caused by contact between the positive electrode contact and the negative electrode contact, the separator is matched with a transverse cross section of the rechargeable battery body, and the separator is fixed to the rechargeable battery body and the connecting sleeve The positive electrode contact is connected between the positive terminal and the PCB through a card slot provided in the partition, and the negative contact is connected between the negative terminal and the PCB along the outer wall edge of the partition.