CN219106360U

CN219106360U - Dustproof and waterproof structure of battery pack electric quantity display button

Info

Publication number: CN219106360U
Application number: CN202223334537.0U
Authority: CN
Inventors: 沙凯
Original assignee: Jiangsu Dartek Technology Co Ltd
Current assignee: Jiangsu Dartek Technology Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-30
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to the technical field of battery packs, in particular to a dustproof and waterproof structure of a battery pack electric quantity display button, which comprises a shell, wherein a yielding hole is formed in the shell, an electric quantity display switch is arranged at the bottom of the yielding hole, a button capable of guiding movement towards one side of the display switch is arranged in the yielding hole, and a spring is arranged between the button and the shell. According to the utility model, the spring is arranged between the button and the shell, so that compared with the traditional plastic button, the elastic fatigue cannot be generated due to excessive elastic deformation times, the spring is adopted as an elastic structure with elastic movement, and the second groove and the inner groove arranged at the bottom of the second groove are arranged in the shell, so that the difficulty of entering dust and rainwater into the shell is increased, and a good dustproof and waterproof effect is achieved.

Description

Dustproof and waterproof structure of battery pack electric quantity display button

Technical Field

The utility model relates to the technical field of battery packs, in particular to a dustproof and waterproof structure of a battery pack electric quantity display button.

Background

The battery PACK generally refers to a combined battery, and an electric core, a battery protection board, a battery connecting sheet, label paper and the like are combined and processed into a product required by a customer through a battery PACK process.

In the patent of application number CN201921897277.3, the patent name is a battery package, including the battery package main part, the upper surface of battery package main part is equipped with electric connection assembly, the upper surface of battery package main part still is equipped with the boss, the both sides of boss are equipped with press assembly spare, one side of boss is equipped with down the cavity, is equipped with switch and pilot lamp in this lower cavity. In the conventional battery pack structure, the switch is disposed on the side or upper surface of the battery pack body, resulting in the switch protruding from the body, so that the switch is easily touched during transportation and packaging, causing unnecessary trouble. In the application, the boss is arranged on the battery pack main body, the boss is provided with the lower concave cavity, the switch and the indicator lamp are arranged in the lower concave cavity, so that the switch cannot protrude out of the main body structure, the switch cannot be touched in the transportation and packaging processes, and meanwhile, the boss is also used for arranging the pressing assembly part which is used for assembling the battery pack to the electric tool;

the button structure in the above technology realizes the triggering of the battery pack circuit structure by pressing, but the gap between the whole telescopic structure and the shell is overlarge, dust and water drops easily enter from the gap, and the button structure is not pressed smoothly.

Therefore, a dustproof and waterproof structure of a battery pack capacity display button is provided to solve the above-mentioned problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects existing in the prior art, the utility model provides a dustproof and waterproof structure of a battery pack electric quantity display button, which can effectively solve the problem that in the prior art, gaps between the battery pack button and a shell are overlarge, and water drops and dust easily enter the gaps to cause unsmooth button pressing.

Technical proposal

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a dustproof and waterproof structure of a battery power-pack display button, which comprises a shell, wherein a yielding hole is formed in the shell, a power display switch is arranged at the bottom of the yielding hole, a button capable of guiding movement towards one side of the display switch is arranged in the yielding hole, and a spring is arranged between the button and the shell, wherein the button is composed of a guide pillar and a dust cover, the guide pillar extends into the yielding hole and faces the power display switch, the dust cover is arranged at one end of the guide pillar away from the yielding hole, and protrudes towards one end of the shell along the outer edge direction of the dust cover towards one end of the shell towards the outer edge of the shell and is embedded in the shell.

The novel dustproof cover is characterized in that two cavities are further formed in the shell and are concentric with the yielding hole, the yielding hole sequentially comprises a first groove and a second groove from inside to outside, the spring is arranged in the first groove, one side of the spring abuts against the end face of the dustproof cover, the second groove is used for embedding a protruding part on the dustproof cover, the upper end face of the first groove is parallel to the dustproof cover but does not intersect with the dustproof cover, and the length of the spring is higher than that of the upper end face of the first groove.

Further, the guide post comprises a shaft steel wire retainer ring, the shaft steel wire retainer ring is sleeved on the outer side of the guide post, and the diameter of the shaft steel wire retainer ring is larger than the aperture of the abdication hole and is abutted against one end of the abdication hole, which is far away from the dust cover.

Further, the hole bottom of the second groove is also provided with an inner groove, the inner groove is arranged at the bottom of the second groove and is attached to the outer edge of the second groove to be downwards arranged, and meanwhile, the inner groove is opposite to one end of the protruding part of the dust cover and is in plug-in fit with the protruding part on the dust cover.

Further, the depth of the inner groove is larger than the height of the spring beyond the upper end face of the first groove.

Further, the annular width of the inner groove is larger than the thickness of the protruding part of the dust cover.

Further, the depth of the inner groove is smaller than half of the depth of the second groove, and the inner groove is in clearance fit with the dust cover.

Further, a rubber layer is arranged at one end of the dust cover, which is far away from the guide post.

Further, the coverage area of the rubber layer is larger than the area of the dust cover.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the utility model has the following beneficial effects:

according to the utility model, the spring is arranged between the button and the shell, so that compared with the traditional plastic button, the elastic fatigue cannot be generated due to excessive elastic deformation times, the spring is adopted as an elastic structure with elastic movement, and the second groove and the inner groove arranged at the bottom of the second groove are arranged in the shell, so that the difficulty of entering dust and rainwater into the shell is increased, and a good dustproof and waterproof effect is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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 evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic side view of a battery pack according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of the structure a in fig. 1 according to an embodiment of the present utility model.

Reference numerals in the drawings represent respectively: 1. a housing; 11. a relief hole; 12. an electric quantity display switch; 13. a first groove; 14. a second groove; 141. an inner tank; 2. a button; 21. a guide post; 211. a steel wire retainer ring for the shaft; 22. a dust cover; 3. and (3) a spring.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The utility model is further described below with reference to examples.

Examples: in the prior art, when a large-capacity battery pack is used for cutting cement by a lithium electric angle grinder or a lithium electric hammer is used for punching holes in cement or a wall surface, a large amount of dust is often generated, operators can spray water even for reducing dust emission, dust exists in the working environment at the moment, water vapor exists in the working environment, the dust enters into all gaps of the battery pack, and especially the button is blocked by the dust, even the water vapor enters into the battery pack, so that all parts in the battery pack are damaged;

in addition, the electric quantity display button of the battery pack in the prior art works by means of elastic deformation of the plastic part, but after the time is long, the plastic button can be fatigued and is in elastic failure, so that the final electric quantity display button is in failure.

Based on this, this scheme provides a dustproof and waterproof structure of battery package electric quantity display button, refer to fig. 1-2, whole battery package mainly includes casing 1, offer a hole 11 of stepping down on casing 1, five pieces of batteries have been arranged in casing 1's inside, and the upper end of battery has been laid one deck circuit board, be provided with the electric quantity display switch 12 that is used for showing the battery residual electric quantity on the circuit board, can send out the warning when pressing electric quantity display switch 12, the electric connection mode that is between electric quantity display switch 12 and the battery electric quantity in this case is known technique, and the warning mode that sends out when triggering electric quantity display switch 12 can be the mode that the lamp twinkles or the display screen shows the residual electric quantity, same is known technique, this scheme is not too much described.

The triggering point of the power display switch 12 is opposite to the hole bottom of the yielding hole 11, a button 2 capable of guiding movement towards one side of the power display switch 12 is arranged in the yielding hole 11, and when the button 2 moves towards one side of the power display switch 12, the power display switch 12 is triggered when the button 2 is abutted against the power display switch 12.

But the difference is, be provided with spring 3 between button 2 and the casing 1 in this scheme, when button 2 moves towards electric quantity display switch 12 one side, spring 3 receives the compression and holds certain elastic potential energy, and when loosening button 2, spring 3 releases the elastic potential energy of holding and rebound button 2 normal position, and button 2 and electric quantity display switch 12 break away from the disconnection.

The button 2 in this scheme comprises guide pillar 21 and shield 22, and guide pillar 21 extends into hole 11 of stepping down and just to electric quantity display switch 12, and shield 22 installs in the one end that hole 11 was stepped down was kept away from to the guide pillar 21, and shield 22 wholly is hollow cylinder form, and hollow face towards the one end of casing 1, and guide pillar 21 vertical fixation is in the middle part of shield 22 towards casing 1 one end, and hole 11 runs through casing 1 setting of stepping down, and button 2 inserts in hole 11 of stepping down and can lead to move about a certain distance.

The button 2 is mounted on the housing 1 in a limited manner, specifically, a piece of shaft steel wire retainer ring 211 is sleeved on the guide post 21, the shaft steel wire retainer ring 211 is sleeved on the outer side of the guide post 21, and the diameter of the shaft steel wire retainer ring is larger than the aperture of the abdication hole 11 and is abutted against one end of the abdication hole 11 far away from the dust cover 22.

The two cavities concentric with the yielding hole 11, namely the first groove 13 and the second groove 14, are sequentially formed in the outer side of the yielding hole 11 from inside to outside, the spring 3 in the scheme is arranged in the first groove 13, the upper end of the spring 3 exceeds the upper end face of the first groove 13 by a certain distance and abuts against the end face of the dust cover 22, the upper end face of the first groove 13 is parallel to but does not intersect with the dust cover 22, and the length of the spring 3 is higher than the upper end face of the first groove 13, so that when the dust cover 22 moves towards one side of the shell 1, the spring 3 can be compressed to a certain extent, and the purpose of accumulating elastic potential energy of the spring 3 is achieved.

Furthermore, the lower end face of the dust cover 22, that is, the outer edge of one end of the housing 1 protrudes toward one end of the housing 1 along the outer edge direction of the dust cover 22 and is embedded in the second groove 14, and no matter whether the button 2 is in a pressed state or a relaxed state, the protruding part of the dust cover 22 is always embedded in the second groove 14, and external dust cannot enter the second groove 14 along with the pressing of the button 2.

In order to further prevent water drops or dust from entering through the relief hole 11 or other holes, the smooth pressing of the button 2 is hindered, an inner groove 141 is further provided at the bottom of the hole of the second groove 14, the inner groove 141 is provided at the bottom of the second groove 14 and is attached to the outer edge of the second groove 14, and the inner groove 141 is provided opposite to one end of the protruding portion of the dust cover 22 and is in plug-in fit with the protruding portion of the dust cover 22.

Therefore, when the button 2 is pressed, the protruding part on the dust cover 22 is further inserted into the inner groove 141, the inner groove 141 and the second groove 14 form a dislocation height difference, the possibility that the dust in the interior is carried out is further increased, meanwhile, the friction stroke between the whole button 2 part and the shell 1 is reduced due to the short telescopic stroke of the whole button 2, and the possibility that the movement is blocked by the dust between the shell 1 and the button 2 is further avoided.

The depth of the inner groove 141 is greater than the height of the spring 3 beyond the upper end surface of the first groove 13, that is, when the bottom end of the dust cover 22 abuts against the bottom of the inner groove 141, the spring 3 is already compressed for a certain distance, and the bottom end of the dust cover 22 is always located in the inner groove 141 in the process of compressing the spring 3, so as to further ensure the sealing degree of the periphery of the dust cover 22.

In another embodiment, the depth of the inner groove 141 is greater than the height of the spring 3 above the upper end surface of the first groove 13, that is, the dust cap 22 abuts against the upper end surface of the first groove 13 when the spring 3 is compressed for a certain distance.

The annular width of the inner groove 141 is larger than the thickness of the protruding part of the dust cover 22, when the protruding part of the dust cover 22 is embedded in the inner groove 141, the distance between the protruding part of the dust cover and the groove wall of the inner groove 141 is about 0.1 mm to 0.2 mm, and when the inner groove 141 and the inner groove are mutually movable, the distance can block some large particle dust, so that the dust is prevented from entering the space between the inner groove and the outer groove, and the friction force between the dust and the outer groove is increased.

Optionally, the end of the dust cover 22 far away from the guide post 21 in the scheme is provided with a rubber layer, the dust cover 22 is encapsulated through the rubber layer, and the coverage area of the rubber layer is larger than the area of the dust cover 22, so that the function of blocking ash and water is further improved, and the possibility that dust or water drops enter the inner part of the cavity is reduced.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The dustproof and waterproof structure of a battery pack electric quantity display button comprises a shell (1), wherein a yielding hole (11) is formed in the shell (1), an electric quantity display switch (12) is arranged at the bottom of the yielding hole (11), and the dustproof and waterproof structure is characterized in that a button (2) capable of guiding movement towards one side of the display switch (12) is arranged in the yielding hole (11), and a spring (3) is arranged between the button (2) and the shell (1);

wherein the button (2) is composed of a guide post (21) and a dust cover (22), the guide post (21) extends into the abdication hole (11) and is opposite to the electric quantity display switch (12), the dust cover (22) is arranged at one end of the guide post (21) far away from the abdication hole (11), and protrudes towards one end of the shell (1) along the outer edge direction of the dust cover (22) towards one end of the shell (1) towards the outer edge direction of the shell (1) and is embedded in the shell (1),

two cavities concentric with the abdication hole (11) are further formed in the shell (1), and the abdication hole (11) sequentially comprises:

the first groove (13), the spring (3) is arranged in the first groove (13) and one side of the spring is propped against the end face of the dust cover (22);

the second groove (14) is used for embedding a protruding part on the dust cover (22);

the upper end face of the first groove (13) is parallel to the dust cover (22) but does not intersect with the dust cover, and the length of the spring (3) is higher than that of the upper end face of the first groove (13).

2. The dustproof and waterproof structure of a battery pack capacity display button according to claim 1, wherein the guide post (21) comprises:

the steel wire retainer ring (211) for the shaft is sleeved on the outer side of the guide pillar (21), and the diameter of the steel wire retainer ring (211) for the shaft is larger than the aperture of the abdication hole (11) and is abutted against one end, far away from the dust cover (22), of the abdication hole (11).

3. The dustproof and waterproof structure of the battery pack capacity display button according to claim 1, wherein the hole bottom of the second groove (14) is further provided with:

the inner groove (141) is arranged at the bottom of the second groove (14) and is attached to the outer edge of the second groove (14), and meanwhile, the inner groove (141) is opposite to one end of the protruding part of the dust cover (22) and is in plug-in fit with the protruding part of the dust cover (22).

4. A dustproof and waterproof structure of a battery pack capacity display button according to claim 3, wherein the depth of the inner groove (141) is greater than the height of the spring (3) beyond the upper end surface of the first groove (13).

5. A dustproof and waterproof structure of a battery pack capacity display button according to claim 3, wherein the inner groove (141) has a ring width larger than the thickness of the protruding portion of the dustproof cover (22).

6. A dust and water proof structure of a battery pack capacity display button according to claim 3, wherein the depth of the inner groove (141) is less than half the depth of the second groove (14), and the inner groove (141) is in clearance fit with the dust cover (22).

7. The dustproof and waterproof structure of the battery pack capacity display button according to claim 1, wherein a rubber layer is arranged at one end of the dustproof cover (22) far away from the guide post (21).

8. The dust-and-water-proof structure of a battery charge amount display button of claim 7, wherein the rubber layer has a coverage area larger than that of the dust cover (22).