CN219393593U - Battery pack dismounting structure - Google Patents

Abstract

The utility model relates to a battery pack dismounting structure, which comprises a fixed base, a movable base and an elastic guide rod, wherein one end of the elastic guide rod is spliced with the fixed base, and the other end of the elastic guide rod is embedded into a circulating guide groove of the movable base and slides along the circulating guide groove; the circulating guide groove comprises a first guide groove, a second guide groove and a third guide groove which are sequentially connected end to end, and the second guide groove is concave towards one side of the spring assembly, so that when the battery pack is installed, the other end of the elastic guide rod slides into the concave part of the second guide groove from the initial position along the first guide groove; when the battery assembly is disassembled, the other end of the elastic guide rod slides out of the concave part of the second guide groove and slides to the initial position along the third guide groove. The utility model replaces the structure that the side wall of the machine body is provided with the control button, is beneficial to reducing the volume of the equipment, and has more stable limiting effect of the elastic guide rod at the concave part of the second guide groove.

Description

Battery pack dismounting structure

Technical Field

The utility model relates to the field of batteries, in particular to a battery pack dismounting structure.

Background

Some electronic products have larger battery power requirements, and the battery is a battery pack formed by packaging a plurality of small batteries into a whole, so that a user can conveniently put the battery into or take the battery out of the product at one time. The battery pack has large volume and large weight, so that the battery groove of the electronic product is internally provided with an automatic ejection mechanism, and the disassembly and assembly efficiency of the battery pack is improved.

For example, a hair clipper with a replaceable battery disclosed in chinese patent No. CN202684948U, a spring for ejecting the battery is arranged in a battery compartment, and when the battery is not limited by other mechanisms, the spring can eject the battery rapidly, so that the efficiency is improved; in order to limit the battery inside the machine body, as described in the patent, a control button is generally disposed on the machine body, the control button is clamped on the battery clamp through a button clamp, the control button is pressed, and the battery can be ejected when the battery is limited by the unlocking button clamp.

Although the battery is quickly assembled and disassembled in the prior art, the lateral wall of the machine body is required to be provided with a control button assembly in a sufficient space, so that the transverse size and the volume of the machine body of the equipment are increased, and the outer wall surface of the battery is required to be provided with a raised battery buckle, so that the complexity of the surface structure of the battery is increased; in addition, after long-time use, along with button buckle elastic force variation, the button buckle can't block the battery well, leads to control button to the fixed effect of battery not good.

Disclosure of Invention

In order to solve the problems that in the existing battery dismounting structure, a mode of fixing a battery by adopting a buckle piece on the side wall of a battery body causes that the size of the battery body is large, the surface structure of the battery is complex, and the battery cannot be well fixed by the buckle piece, the utility model provides a battery pack dismounting structure.

The technical scheme of the utility model is as follows:

the battery pack dismounting structure comprises a fixed base and a movable base, wherein the fixed base is provided with a spring assembly for ejecting the movable base, one side of the movable base, which is far away from the spring assembly, is abutted against the battery pack, the battery pack dismounting structure also comprises an elastic guide rod, one end of the elastic guide rod is spliced with the fixed base, and the other end of the elastic guide rod is embedded into a circulating guide groove of the movable base and slides along the circulating guide groove;

the circulating guide groove comprises a first guide groove, a second guide groove and a third guide groove which are connected end to end in sequence, and the second guide groove is concave towards one side of the spring assembly, so that when the battery pack is installed, the other end of the elastic guide rod slides into the concave part of the second guide groove from the initial position along the first guide groove; when the battery assembly is disassembled, the other end of the elastic guide rod slides out of the concave part of the second guide groove and slides to the initial position along the third guide groove.

The utility model according to the above scheme is characterized in that a first step is arranged at the joint of the first guide groove and the second guide groove, and the first guide groove positioned at the first step is higher than the second guide groove;

a second step is arranged at the joint of the second guide groove and the third guide groove, and the second guide groove positioned at the second step is higher than the third guide groove;

the joint of the third guide groove and the first guide groove is provided with a third step, and the third guide groove positioned at the third step is higher than the first guide groove.

Further, a fourth step is arranged in the inner concave part of the second guide groove, and the sliding-in end positioned at the fourth step is higher than the sliding-out end.

Further, from the initial position to the first step, the groove surface height of the first guide groove gradually increases.

Further, from the second step to the third step, the groove surface height of the third guide groove gradually increases.

The utility model according to the scheme is characterized in that the spring assembly comprises a pressure spring and a sleeve rod, the sleeve rod is arranged on the outer side face of the fixed base, and the pressure spring is sleeved on the sleeve rod.

The utility model according to the scheme is characterized in that the end face of the fixed base is provided with the PCB with the spring pin, and the spring pin is in contact connection with the bottom contact of the battery pack.

Further, a protective cover is arranged on the PCB, and small holes corresponding to the spring pins are formed in the protective cover.

According to the scheme, the movable base is characterized in that the side wall of the movable base is provided with a plurality of movable steel balls, and the diameter of each steel ball is larger than the thickness of the side wall, so that the steel balls are exposed from the inner side and the outer side of the side wall.

Further, the side wall of the movable base is provided with a plurality of holes for placing the steel balls, and the aperture of the holes is gradually reduced from the outer side of the side wall to the inner side of the side wall.

Further, a circle of clamping grooves are formed in the bottom of the battery pack, and the part, extending into the side wall of the movable base, of the steel balls is connected with the clamping grooves.

Further, the battery pack dismounting structure further comprises a battery support, and one end, provided with a steel ball, of the movable base is inserted into the battery support and is in sliding connection with the inner side wall of the battery support through the steel ball.

The utility model according to the scheme has the beneficial effects that:

the utility model utilizes the cooperation of the circulating guide groove and the elastic guide rod to change the relative positions of the fixed base and the movable base, thereby realizing the ejection of the movable base or the clamping of the movable base, and the battery pack is arranged in the groove of the movable base, when the movable base is ejected, the battery can be pulled out, and when the movable base is clamped, the battery can be completely filled; the utility model replaces the structure that the control button is arranged on the side wall of the machine body, is beneficial to reducing the volume of the machine body of the equipment, and has better, more stable and reliable limiting effect of the elastic guide rod at the concave part of the second guide groove;

the operation mode of the utility model is simpler and more convenient, and the end part of the battery pack is only required to be pressed no matter the battery pack is disassembled or the battery pack is assembled.

Drawings

FIG. 1 is a schematic diagram of the structure of the battery pack and the present utility model;

FIG. 2 is an exploded view of the movable base and the stationary base portions of the present utility model;

FIG. 3 is a schematic view showing a state in which a battery pack ejects a battery holder;

fig. 4 is a schematic view showing a state in which a battery pack is mounted in a battery holder;

FIG. 5 is a schematic view of a circulation chute portion of the mobile base;

FIG. 6 is a schematic view of a movement track of the elastic guide rod in the circulation guide groove;

FIG. 7 is a schematic illustration of the connection of the flexible guide rod to the circulation guide slot;

FIG. 8 is an enlarged view of portion A of FIG. 7;

fig. 9 is a schematic diagram of the connection of the steel ball and the elastic piece.

In the drawing of the figure,

1. a movable base;

11. a circulation guide groove; 111. a first guide groove; 112. a second guide groove; 1121. a slide-in end; 1122. a slide-out end;

113. a third guide groove; 100. an initial position; 101. a first step; 102. a second step; 103. a third step;

104. a fourth step; 12. opening holes; 121. steel balls;

2. a fixed base;

21. an elastic guide rod; 22. a protective cover; 23. a spring needle; 24. a loop bar; 241. a pressure spring; 25. positioning a guide rod;

26. a spring piece;

3. a battery holder; 31. an elastic sheet;

4. a battery pack;

41. a clamping groove.

Detailed Description

For a better understanding of the objects, technical solutions and technical effects of the present utility model, the present utility model will be further explained below with reference to the drawings and examples. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present.

The direction orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is commonly put when the product of the application is used, or the orientation or positional relationship which is commonly understood by those skilled in the art, or the orientation or positional relationship which is commonly put when the product of the application is used, only for convenience of description of the application and simplification of description, and is not intended to indicate or imply that the device or element to be referred must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the application.

The terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a number" is two or more, unless specifically defined otherwise.

As shown in fig. 1 to 4, a battery pack assembling and disassembling structure includes a battery holder 3, the battery holder 3 forming a groove for accommodating a battery pack; still include unable adjustment base 2 and movable base 1, unable adjustment base 2 and movable base 1 all set up in battery support 3 bottom, unable adjustment base 2 and battery support 3 relative fixation (for example unable adjustment base 2 and battery support 3 all fixed connection are at electronic equipment's shell body), but movable base 1 locates between unable adjustment base 2 and the battery support 3 and back and forth movement, specifically, unable adjustment base 2 is equipped with the spring assembly who is used for popping out movable base 1, the bottom of movable base is connected to the spring assembly, the top of movable base then inserts in the battery support 3, and the movable base top is equipped with the trench that is used for placing group battery 4, when group battery 4 pack into battery support 3 and by the push to the bottom, group battery 4 is connected with the trench at movable base 1 top, continue to push group battery 4 inwards, then promote movable base 1 and be close to unable adjustment base 2, extrude the spring assembly simultaneously.

The battery pack dismounting structure further comprises an elastic guide rod 21, one end of the elastic guide rod 21 is spliced with the fixed base 2, and the other end of the elastic guide rod is embedded into the circulating guide groove 11 of the movable base 1 and slides along the circulating guide groove 11. The circulation guide groove 11 comprises a first guide groove 111, a second guide groove 112 and a third guide groove 113 which are sequentially connected end to end, and the second guide groove 112 is concave towards one side of the spring assembly, so that when the battery pack 4 is installed, the other end of the elastic guide rod 21 slides into the concave position of the second guide groove 112 along the first guide groove 111 from the initial position 100; when the battery pack is detached, the other end of the elastic guide rod 21 slides out of the recess of the second guide groove 112 and slides to the initial position 100 along the third guide groove 113.

As shown in fig. 5 to 8, in the present utility model, in order to ensure that the elastic guide bar 21 circularly slides in the circulation guide groove 11 (i.e., the first guide groove 111-the second guide groove 112-the third guide groove 113-the first guide groove 111- … …) in the battery mounting/dismounting process, a first step 101 is provided at the connection between the first guide groove 111 and the second guide groove 112, and the first guide groove 111 located at the first step 101 is higher than the second guide groove 112; the connection part of the second guide groove 112 and the third guide groove 113 is provided with a second step 102, and the second guide groove 112 positioned at the second step 102 is higher than the third guide groove 113; the third step 103 is arranged at the connection part of the third guide groove 113 and the first guide groove 111, and the third guide groove 113 positioned at the third step 103 is higher than the first guide groove 111.

The working principle of the utility model is as follows:

when the battery pack 4 is installed, the battery pack 4 is inserted into the battery bracket 3 until the bottom of the battery pack 4 enters the slot of the movable base 1 and pushes the movable base 1 to approach the fixed base 2, thereby compressing the spring assembly between the two bases. Meanwhile, the elastic guide rod 21 slides from the initial position 100 of the first guide groove 111 to the second guide groove 112, and in the sliding process, as the third step 103 is arranged between the first guide groove 111 and the third guide groove 113, the third step 103 can prevent the elastic guide rod 21 from entering the third guide groove 113, so that the elastic guide rod 21 can be ensured to slide into the first guide groove 111 smoothly; after sliding along the first guide groove 111 to the first step 101, the elastic guide rod 21 falls into the second guide groove 112.

After releasing the pushing force applied to the battery pack 4, the movable base 1 moves away from the fixed base 2 under the action of the spring assembly, and the first step 101 can prevent the elastic guide rod 21 from retreating to the first guide groove 111, so that the elastic guide rod 21 can be ensured to smoothly slide to the concave position of the second guide groove 112, and the battery pack 4 is assembled.

When the battery pack 4 is disassembled, the battery pack 4 is pressed, the movable base 1 is pushed to be close to the fixed base 2 again, and at the moment, the elastic guide rod 21 slides to the second step 102 from the concave part of the second guide groove 112 and falls into the third guide groove 113; releasing the pressure applied to the battery pack 4, under the action of the spring assembly, the movable base 1 moves in a direction away from the fixed base 2, at this time, the elastic guide rod 21 slides along the third guide groove 113 to the third step 103 at the joint of the first guide groove 111 and the third guide groove 113, falls into the first guide groove 111, returns to the initial position 100, at this time, the end part of the battery pack 4 exposes the battery support 3, and the battery pack 4 can be pulled out, so that the battery pack 4 is detached.

It can be seen that the utility model utilizes the cooperation of the circulation guide groove 11 and the elastic guide rod 21 to change the relative positions of the fixed base 2 and the movable base 1, thereby realizing the ejection of the movable base 1 or the clamping of the movable base 1, and the battery pack 4 is arranged in the groove position of the movable base 1, when the movable base 1 is ejected, the battery can be pulled out, and when the movable base 1 is clamped, the battery is arranged in the battery bracket 3. The utility model replaces the structure that the control button is arranged on the side wall of the machine body, is beneficial to reducing the volume of the machine body of the equipment, and has better limit effect of the elastic guide rod at the concave part of the second guide groove. Compared with the prior art, the utility model has simple and convenient operation mode, and the end part of the battery pack 4 is only required to be pressed no matter the battery pack 4 is disassembled or the battery pack 4 is assembled.

In the present utility model, the inner recess of the second guide groove 112 is provided with the fourth step 104, and the sliding-in end 1121 located at the fourth step 104 is higher than the sliding-out end 1122 thereof. The second guide groove 112 is a broken line, a concave (concave) position of the second guide groove 112 is formed at a turning position, a fourth step 104 is arranged at the turning position, the second guide groove 112 is divided into two sections by taking the fourth step 104 as a boundary line, one section close to the first guide groove 111 is a sliding-in end 1121, and one section close to the third guide groove 113 is a sliding-out end 1122. The fourth step 104 serves to ensure that the flexible guide rod 21 can only slide out of the recess to the third guide channel 113.

In an alternative embodiment, the groove surface height of the first guide groove 111 gradually increases from the initial position 100 to the direction of the first step 101. The groove surface height of the third guide groove 113 gradually increases from the second step 102 to the third step 103. By means of the structural design, the change of the groove height between the adjacent sub-guide grooves of the circulation guide groove 11 is realized, and the elastic guide rod 21 slides in the circulation guide groove 11 more stably. In other alternative embodiments, the groove surfaces of the first guide groove 111 and the third guide groove 113 can be in a slope-horizontal plane-slope structure, the middle section of the guide groove is a horizontal plane, and slopes are arranged at two ends of the guide groove, and the height of the groove surface is changed by virtue of the slopes.

As shown in fig. 2, in the present utility model, a positioning guide rod 25 is provided at a side of a fixed base 2, a movable base 1 is provided with a through hole corresponding to the positioning guide rod 25, the positioning guide rod 25 is inserted into the through hole, the diameter of the positioning guide rod is smaller than the diameter of the through hole, and the movable base and the fixed base are slidably connected by the positioning guide rod.

The spring assembly comprises a pressure spring 241 and a sleeve rod 24, the sleeve rod 24 is arranged on the outer side face of the fixed base 2, one end of the pressure spring 241 is sleeved on the sleeve rod 24, the other end of the pressure spring is higher than the fixed base 2, and the other end of the pressure spring is in butt joint with the movable base 1.

In this embodiment, the fixing base 2 is provided with two positioning guide rods 25 and two loop bars 24, and the positioning guide rods 25 and the loop bars 24 are arranged at intervals.

In the utility model, the elastic guide rod 21 is C-shaped, one end is inserted into a hole on the fixed base 2, the other end is embedded into the circulating guide groove 11, and the other end can swing by taking the hole as the center, so that the elastic guide rod 21 can automatically adjust when sliding in the circulating guide groove 11 and is not twisted or damaged. The C-shaped elastic guide rod 21 is opened towards one side of the circulation guide groove 11, and the elastic piece 26 can be arranged in the fixed base 2 and pressed above the elastic guide rod 21, so that the elastic guide rod 21 stably slides in the circulation guide groove 11 without being separated from the circulation guide groove 11. The specific structure of the spring piece 26 is not required, and the spring piece can be adaptively installed inside the fixed base 2, and one side of the spring piece is provided with a U-shaped spring piece which is pressed above the elastic guide rod 21. The elastic guide rod 21 and the elastic sheet have certain elasticity, so that the elastic guide rod 21 can smoothly move to the position with higher groove surface in the circulation guide groove 11.

In the utility model, a PCB board with a spring pin 23 is arranged on the end face of a fixed base 2, and the spring pin 23 is in contact connection with the bottom contact of a battery pack 4. When the battery pack 4 is put in place (the elastic guide rod 21 is located in the recess of the second guide groove 112), the spring pin 23 abuts against the bottom of the battery pack 4 and is electrically connected with the contact, and the spring pin 23 has a certain compression amount but is not fully compressed.

In the utility model, a protective cover 22 is arranged on the PCB, and the protective cover 22 is provided with small holes corresponding to the spring pins 23. The spring pins 23 penetrate through the corresponding small holes, and the protective cover 22 plays a role in protecting the PCB and the spring pins 23 on the PCB.

In the utility model, the side wall of the movable base 1 is provided with a plurality of movable steel balls 121, and the diameter of each steel ball 121 is larger than the thickness of the side wall, so that the steel balls 121 are exposed at the inner side and the outer side of the side wall. The steel balls 121 are used for reducing contact friction at the outer side part of the side wall, and the steel balls 121 are used for limiting the battery pack 4 at the inner side part of the side wall.

As shown in fig. 1 and 9, specifically, the battery pack assembling and disassembling structure further includes a battery holder 3, an elastic piece 31 for pressing inward is provided at the bottom of the battery holder 3, and the inner wall of the elastic piece 31 contacts with the steel ball 121 for pressing the steel ball 121 to prevent the steel ball from coming off the ball hole (opening 12).

One end provided with a steel ball 121 on the movable base 1 is inserted into the battery bracket 3, the steel ball 121 is abutted with the elastic piece 31, when the movable base 1 is displaced, the steel ball 121 rolls in the opening 12, the elastic piece 31 always presses the steel ball 121 to prevent the steel ball from falling out of the opening 12, and the steel ball 121 plays a role in reducing friction, so that the movable base 1 and the battery bracket 3 slide more smoothly.

Specifically, a circle of clamping groove 41 is arranged at the bottom of the battery pack 4, and the part of the steel ball 121 extending into the side wall of the movable base 1 is connected with the clamping groove 41. After the tail end of the battery pack 4 is inserted into the movable base 1 and is in place, the steel balls 121 are embedded into the clamping grooves 41, so that the battery pack 4 is clamped with the movable base 1, and the battery pack 4 is driven by the movable base 1 to move; the spring assembly ejects the movable base 1, namely ejects the battery pack 4, and at the moment, the battery pack 4 can be pulled out from the movable base 1 only by slightly pulling the battery pack 4 with force, so that the clamping groove 41 is separated from the limitation of the steel balls 121.

In other alternative embodiments, the inner side wall of the movable base 1 is provided with a rough surface, so that the connection between the battery pack 4 and the movable base 1 is realized, and the limiting effect of the steel balls 121 is replaced; the inner side wall of the movable base 1 can be provided with telescopic convex teeth which are clamped with the outer side wall of the battery pack 4.

In this embodiment, the side wall of the movable base 1 is provided with a plurality of openings 12 for placing the steel balls 121, and the aperture of the openings 12 gradually decreases from the outside of the side wall to the inside of the side wall. When the steel ball 121 is installed, the steel ball 121 is placed into the opening 12 from the outer side surface of the side wall, and the steel ball 121 can roll in the opening 12.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The battery pack dismounting structure comprises a fixed base and a movable base, wherein the fixed base is provided with a spring assembly for ejecting the movable base, and one side of the movable base, which is far away from the spring assembly, is abutted against the battery pack;

the circulating guide groove comprises a first guide groove, a second guide groove and a third guide groove which are connected end to end in sequence, and the second guide groove is concave towards one side of the spring assembly, so that when the battery pack is installed, the other end of the elastic guide rod slides into the concave part of the second guide groove from the initial position along the first guide groove; when the battery assembly is disassembled, the other end of the elastic guide rod slides out of the concave part of the second guide groove and slides to the initial position along the third guide groove.

2. The battery pack dismounting structure according to claim 1, wherein a first step is provided at a connection position of the first guide groove and the second guide groove, and the first guide groove located at the first step is higher than the second guide groove;

a second step is arranged at the joint of the second guide groove and the third guide groove, and the second guide groove positioned at the second step is higher than the third guide groove;

the joint of the third guide groove and the first guide groove is provided with a third step, and the third guide groove positioned at the third step is higher than the first guide groove.

3. The battery pack assembling and disassembling structure according to claim 2, wherein the recess of the second guide groove is provided with a fourth step, and the slide-in end located at the fourth step is higher than the slide-out end thereof.

4. The battery pack attaching and detaching structure according to claim 2, wherein the groove surface height of the first guide groove gradually increases from the initial position to the first step.

5. The battery pack attachment/detachment structure according to claim 2, wherein a groove surface height of the third guide groove gradually increases from the second step to the third step.

6. The battery pack disassembly and assembly structure according to claim 1, wherein the spring assembly comprises a pressure spring and a sleeve rod, the sleeve rod is arranged on the outer side surface of the fixed base, and the pressure spring is sleeved on the sleeve rod.

7. The battery pack dismounting structure according to claim 1, wherein the end face of the fixing base is provided with a PCB board with a spring pin, and the spring pin is in contact connection with a bottom contact of the battery pack.

8. The battery pack dismounting structure according to claim 1, wherein the side wall of the movable base is provided with a plurality of movable steel balls, and the diameter of each steel ball is larger than the thickness of the side wall, so that the steel balls are exposed from the inner side and the outer side of the side wall.

9. The battery pack dismounting structure according to claim 8, wherein a circle of clamping grooves are formed in the bottom of the battery pack, and the portions, extending into the side walls of the movable base, of the steel balls are connected with the clamping grooves.

10. The battery pack dismounting structure according to claim 8, further comprising a battery support, wherein one end of the movable base provided with a steel ball is inserted into the battery support and is slidably connected with the inner side wall of the battery support through the steel ball.