CN215070214U

CN215070214U - Waterproof battery pack

Info

Publication number: CN215070214U
Application number: CN202121540534.5U
Authority: CN
Inventors: 陆春桃; 严安
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-12-07
Anticipated expiration: 2031-07-07

Abstract

The utility model discloses a waterproof battery pack, which comprises a battery pack casing in which a circuit board is installed; a power supply terminal is mounted on the circuit board and matched with the battery pack casing, and the power supply terminal A first sealing ring is installed thereon to realize the sealing of the power supply terminal and the battery pack case. The utility model can effectively prevent water from entering the battery pack, thereby avoiding the problem of damage to the battery caused by water entering the battery pack.

Description

Waterproof battery pack

Technical Field

The utility model relates to a battery technology field, concretely relates to waterproof battery package.

Background

The electric tool can effectively reduce the labor intensity of workers and improve the working efficiency of the workers, is popular with users, and is widely applied to the fields of building, decoration, garden, family cleaning and the like. Such as electric drills, electric saws, vacuum cleaners, lawn mowers, pruners, etc. In order to make the range of use of the power tool not limited by the commercial power, the power tool is generally provided with a battery pack so that the power tool can be used in places without a commercial power plug.

When the battery pack operates in a humid environment, it is required that the battery pack has high waterproof performance. However, the existing battery pack shell has gaps and poor sealing performance, and cannot effectively prevent water from entering the battery pack, so that short circuit is often caused by water entering the battery pack.

In view of the above, there is a need for an improved battery pack to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a waterproof battery package to there is the space in improving the battery package casing, sealing performance is poor, can not effectually prevent that water from getting into the battery package in, the problem that the time often can cause the damage to the battery because of intaking in the battery package.

The utility model provides a waterproof battery package, include:

a battery pack case in which a circuit board is mounted;

and the power supply terminal is arranged on the circuit board and matched with the battery pack shell, and a first sealing ring is arranged on the power supply terminal so as to realize the sealing of the power supply terminal and the battery pack shell.

In an embodiment of the present invention, the battery pack case includes an upper case and a lower case, the upper case is fixedly connected to the lower case, a terminal interface is disposed on a top surface of the upper case, and the power supply terminal is disposed in the terminal interface.

The utility model discloses an in the embodiment, the edge that lower casing and last casing are connected is provided with the round seal groove, install the second sealing washer in the seal groove, work as lower casing with during upper casing fixed mounting, in order to realize upper casing with sealed between the casing down.

In an embodiment of the present invention, one side of the top of the battery pack case is provided with a retaining member mounting groove, and a retaining member is mounted in the retaining member mounting groove and sealed by a mounting groove cover.

In an embodiment of the present invention, a water guiding groove is disposed between the mounting groove cover and the battery pack case.

In an embodiment of the present invention, a plurality of bosses are disposed in the retaining member mounting groove, a thread structure is disposed in the boss, the mounting groove cover is connected to the lower case of the battery pack by a bolt, and the bolt extends into the bottom of the lower case.

The utility model discloses an in the embodiment, still be provided with display device in the locating part mounting groove, display device is used for showing the residual capacity and/or voltage and/or electric current and/or the electric core temperature and/or the trouble of battery package, just display device is the LCD display screen.

In an embodiment of the present invention, the display device is attached with a waterproof label.

The utility model discloses an in one embodiment, the battery package still includes the interface that charges, the one end of the interface that charges with circuit board electric connection, one of the other end is served and is provided with the third sealing washer, in order to realize the battery package casing with the sealed of the interface that charges.

In an embodiment of the present invention, a protective cover is further disposed outside the charging interface, and the protective cover is located at the interface of the battery pack case.

The utility model provides a waterproof battery package all sets up sealed waterproof construction through the power supply terminal at the battery package and other structurally to improve its sealed waterproof performance, in the effectual water entering battery package of avoiding, thereby avoid leading to the fact the problem of damage to the battery because of intaking in the battery package.

Drawings

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

Fig. 1 is a schematic structural diagram of a waterproof battery pack according to the present invention.

Fig. 2 is a schematic structural diagram of a battery cell support and a circuit board according to an embodiment of the invention.

Fig. 3 is a schematic view of an internal structure of an upper housing according to an embodiment of the invention.

Fig. 4 is an exploded view of a power supply terminal according to an embodiment of the invention.

Fig. 5 is a schematic diagram of an explosive structure according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of the lower housing and the second sealing ring according to an embodiment of the invention.

Fig. 7 is a schematic structural diagram of a circuit board according to an embodiment of the invention.

Fig. 8 is a schematic structural diagram of a charging interface according to an embodiment of the invention.

Fig. 9 is a schematic structural diagram of a lower housing according to an embodiment of the invention.

Fig. 10 is a schematic view of a water chute structure according to an embodiment of the invention.

Fig. 11 is a schematic structural diagram of a position limiting element according to an embodiment of the invention.

Fig. 12 is another angle structure diagram of the upper housing according to an embodiment of the present invention.

Fig. 13 is a schematic view illustrating an assembly of the protection plug and the charging interface according to an embodiment of the invention.

Description of reference numerals:

a battery pack 100; a housing 10; a cell support 14; a circuit board 13; an electrode sheet 141; a charging interface 122; a third seal ring 123; an upper case 11; a lower case 12; a convex portion 1101; a slide rail 1102; a terminal interface 131; a power supply terminal 132; a seal groove 115; a second seal ring 116; a threaded through bore 1201; a tab mount 1321; insert piece 1322; vertical ribs 1323; a first sealing ring 1324; a stopper 111; a limiting pressing part 1111; a stopper post 1112; a limiting piece mounting groove 112; a mounting slot cover 1121; a water chute 101; a boss 11201; a display device 1115; waterproof label 11151; the air holes 1116; a socket 113; a protective plug 117.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

In order to solve the problems that a gap exists in a battery pack shell, the sealing performance is poor, water cannot be effectively prevented from entering the battery pack, and the battery is often damaged due to water entering the battery pack, the invention provides a waterproof battery pack, as shown in fig. 1 and fig. 2, the battery pack 100 comprises a shell 10, a battery cell support 14 and a circuit board 13 are installed in the shell 10, the battery cell support 14 is located in the battery pack shell 10, a plurality of battery cells are respectively installed in the battery cell support 14, the battery cells are connected through electrode plates 141, and the battery cells are electrically connected with the circuit board 13.

As shown in fig. 3 and 4, in the present embodiment, the power supply terminal 132 is mounted on the circuit board 13 and located at the terminal interface 131, specifically, in the present embodiment, a terminal mounting groove 1311 is provided inside the upper housing 11, and the power supply terminal 132 is mounted on the circuit board 13 and located in the terminal mounting groove 1311, so that the cooperation between the insert mounting seat 1321 and the terminal mounting groove 1311 of the first sealing ring 1324 on the power supply terminal 132 achieves a sealing effect.

As shown in fig. 3 and 4, in the present embodiment, the power supply terminal 132 includes a plug-in mounting seat 1321 and a plurality of plug-in pieces 1322, the blade mount 1321 is mounted on the circuit board 13, the plurality of blades 1322 are mounted on the blade mount 1321, the height of the insert sheet mounting seat 1321 is higher than the height of the insert sheet 1322, and the bottom of the insert sheet 1322 is electrically connected with the circuit board 13, and every two male tabs 1322 are separated from each other by the vertical lattice ribs 1323, specifically, the insert mounting seat 1321 is provided with an open mounting groove on two adjacent surfaces, a plurality of vertical grid ribs 1323 are distributed in the groove at intervals, the groove is divided into a plurality of independent and mutually separated spaces, the height of the vertical grid ribs 1323 is higher than that of the insertion piece 1322, to isolate each tab 1322 individually to avoid interference between the tabs 1322. In addition, in this embodiment, a circle of sealing groove 1320 is disposed at the bottom of the insert mounting seat 1321, a first sealing ring 1324 is disposed in the sealing groove 1320, and the first sealing ring 1324 deforms under the extrusion of the insert mounting seat 1321 and the battery pack case 10 to fill the gap between the insert mounting seat 1321 and the battery pack case 10, so as to achieve a sealing effect. After the water enters the terminal interface 131, the insert pieces 1322 are separately separated from each other, so that the insert pieces 1322 do not interfere with each other, and due to the sealing effect of the first sealing ring 1324, no gap exists between the insert piece mounting seat 1321 and the battery pack case 10, so that the water entering from the terminal interface 131 cannot enter the battery pack and is easily discharged from the terminal interface 131.

As shown in fig. 5 and 6, in this embodiment, the battery pack case 10 includes an upper case 11 and a lower case 12, the upper case 11 is fixedly connected to the lower case 12, the cell holder 14 and the circuit board 13 are accommodated in an accommodating cavity formed by assembling the upper case 11 and the lower case 12, a convex portion 1101 is disposed on a top surface of the upper case 11, slide rails 1102 are disposed on two sides of the convex portion 1101, the terminal interface 131 is disposed at one end of the convex portion 1101 and is located between the slide rails 1102 on two sides of the convex portion 1101, and when the external electric tool is connected to the battery pack 100 through the slide rails 1102, the power supply terminal 132 is electrically connected to the external electric tool.

As shown in fig. 6, in the present embodiment, a ring of sealing groove 115 is disposed at an edge where the lower case 12 and the upper case 11 are connected, a second sealing ring 116 is installed in the sealing groove 115, and when the lower case 12 and the upper case 11 are fixed, the second sealing ring 116 is deformed under the pressing force of the upper case 11 and the lower case 12 to fill the gap between the upper case 11 and the lower case 12 to form a seal, so as to prevent water from entering the battery pack from the gap between the upper case 11 and the lower case 12.

As shown in fig. 6, in this embodiment, the upper case 11 and the lower case 12 are connected by screws, specifically, four corners of the lower case 12 are respectively provided with a threaded through hole 1201, the interior of the upper case 11 is also provided with four threaded holes with a certain depth corresponding to the interior of the upper case, screws extend into the threaded through holes 1201 from the bottom of the lower case 12 and are connected with the threaded holes of the upper case 11, and the threaded connection between the upper case 11 and the lower case 12 is such that the threaded holes are at the bottom of the lower case 12, thereby preventing water from entering the battery pack from the threaded holes.

As shown in fig. 1 and 7 to 8, in this embodiment, the battery pack further includes a charging interface 122, the charging interface 122 is mounted on the circuit board 13, one end of the charging interface 122 protrudes out of the side surface of the circuit board 13, a third sealing ring 123 is mounted on one end of the charging interface 122 protruding out of the side surface of the circuit board 13, and the third sealing ring 123 deforms under the compression of the battery pack housing 10 and the charging interface 122 to achieve sealing.

As shown in fig. 9 and 10, in this embodiment, a limiting member mounting groove 112 is provided on the upper case 11 of the battery pack case 10, a limiting member 111 is installed in the limiting member mounting groove 112 and sealed by a mounting groove cover 1121, the limiting member 111 is used for easily separating the battery pack 100 when the battery pack 100 is inserted into or removed from the battery pack case 10, a water guiding groove 101 is provided between the mounting groove cover 1121 and the battery pack case 10, so that water entering the limiting member mounting groove 112 can rapidly flow out from the water guiding groove 101 to prevent water from accumulating at the water guiding groove 101, thereby affecting the waterproof performance of the battery pack.

As shown in fig. 9, in the embodiment, a plurality of threaded holes are formed in the retaining member mounting groove 112, and bolts are fixedly connected to the mounting groove cover 1121 through the threaded holes, and a boss 11201 is formed at the threaded hole, and the height of the boss 11201 is higher than the bottom surface of the retaining member mounting groove 112, so as to prevent the bolts from being soaked in water, and prevent water from entering the battery pack through a gap between the bolts and the threaded holes.

As shown in fig. 9, in the embodiment, a display device 1115 is further disposed in the limiting member mounting groove 112, and the display device may be used for displaying the remaining power of the battery pack 100, and may also be used for displaying the voltage, the current, the cell temperature, the fault, and the like of the battery pack 100. The display device may also display operating parameters of the power tool, such as the rotational speed of the motor, etc., when the battery pack 100 is coupled to and operated by the power tool. The display device is preferably an LCD display screen, but should not be limited thereto.

As shown in fig. 9 to 11, in the present embodiment, the display device is fixed on the upper housing 11 and located beside the limiting member 111. Specifically, the limiting member 111 includes a limiting pressing portion 1111 and a limiting post 1112, and the limiting pressing portion 1111 is used for an operator to operate so as to release the lock between the battery pack 100 and the electric tool; the position-limiting post 1112 is used for realizing fixed connection between the battery pack 100 and an external device.

As shown in fig. 9 to 11, in the present embodiment, preferably, the display device is fixed on the upper housing 11 and located between the position-limiting pressing portion 1111 and the position-limiting post 1112, for the purpose of: when the battery pack 100 is combined with the electric tool, an operator can see the content displayed on the display device in the using process, and when abnormality occurs in the operation process or the working process of the battery pack 100 and/or the electric tool, the abnormality can be timely found and processed, so that the occurrence of danger is avoided.

Of course, the display device may be mounted on the front side of the battery pack 100, i.e. on the side of the position-limiting pressing portion 1111 away from the position-limiting pillar 1112.

As shown in fig. 5, in the present embodiment, a waterproof label 11151 is attached to the display device 1115 to enhance the waterproof performance of the display device. In this embodiment, an air hole 1116 is further disposed in the limiting member mounting groove 112, the battery pack 100 generates gas in the using process or the air inside the battery pack expands due to the heat generated by the battery core, the air hole 1116 is used for exhausting the air inside the battery pack 100, and in the whole button moving process: the bottom circular groove of the position-limiting member 111 covers the air holes 1116 at all times, so that water is prevented from entering the battery pack 100 through the air holes 1116.

As shown in fig. 12, in this embodiment, a socket 113 is formed on the lower housing 12, the charging interface 122 is located at the socket 113, the charging interface is, for example, a Type-C interface, and the Type-C interface is electrically connected to the circuit board 13 to realize electrical connection between the battery cell and the Type-C interface, so as to facilitate implementation of power output/input of the battery cell assembly by using the Type-C interface.

As shown in fig. 1 and 13, in the present embodiment, the battery pack case 10 is substantially rectangular, the Type-C interface is provided on the long side of the battery pack case 10, and the stopper 111 is provided near the short side of the upper case 11. In this embodiment, all be provided with on the relative both sides long edge that sets up of battery package casing 10 Type-C interface, Type-C interface includes: the interface comprises a first Type-C interface and a second Type-C interface. Correspondingly, the two insertion ports 113 are formed on the two long sides of the battery pack case 10, specifically, on the two long sides of the upper case 11, and the direction of the insertion port 113 is perpendicular to the two long sides.

As shown in fig. 13, in this embodiment, a protective cover is further installed on the battery pack case 10 of the battery pack, and the protective cover is located at the socket 113 to cover the charging interface 122, so as to achieve waterproof and dustproof effects. Specifically, in this embodiment, the protective cover is the protection plug 117, the one end of the protection plug 117 is inserted in the interface 122 that charges, with the interface 122 phase-match that charges, the other end with interface 113 phase-match that charges to cover the interface 122 that charges, in order to realize sealed effect, in order to further improve waterproof, dirt-proof effect.

The invention provides a waterproof battery pack, which improves the sealing performance of the battery pack through a sealing structure arranged on a power supply terminal and sealing structures arranged on other parts of the battery pack, and effectively avoids water from entering the battery pack, thereby avoiding the problem that the battery is damaged due to water entering the battery pack.

The above description is only a preferred embodiment of the present application and a description of the applied technical principle, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.

Other technical features than those described in the specification are known to those skilled in the art, and are not described herein in detail in order to highlight the innovative features of the present invention.

Claims

1. A waterproof battery pack, characterized in that, comprising:

a battery pack casing, in which a circuit board is installed;

A power supply terminal is mounted on the circuit board and matched with the battery pack housing, and a first sealing ring is mounted on the power supply terminal to achieve sealing between the power supply terminal and the battery pack housing.

2 . The waterproof battery pack according to claim 1 , wherein the battery pack casing comprises an upper casing and a lower casing, the upper casing is fixedly connected to the lower casing, and the A terminal interface is provided on the top surface of the upper casing, and the power supply terminal is located in the terminal interface.

3 . The waterproof battery pack according to claim 2 , wherein a sealing groove is formed on the edge connecting the lower case and the upper case, and a second sealing ring is installed in the sealing groove. 3 . When the lower casing and the upper casing are fixedly assembled, the sealing between the upper casing and the lower casing is realized.

4 . The waterproof battery pack according to claim 1 , wherein a limiter installation groove is provided on one side of the top of the battery pack housing, and a limiter is installed in the limiter installation groove, and Sealed by mounting slot cover.

5 . The waterproof battery pack according to claim 4 , wherein a water guiding groove is provided between the installation groove cover and the battery pack casing. 6 .

6 . The waterproof battery pack according to claim 4 , wherein a plurality of bosses are arranged in the installation groove of the limiter, the bosses are of a threaded structure, and the installation groove cover is connected to the installation groove. 7 . The lower casings of the battery pack are connected by bolts, and the bolts extend from the bottom of the lower casing into the bottom of the installation slot cover.

7 . The waterproof battery pack according to claim 4 , wherein a display device is further provided in the limiter installation groove, and the display device is used to display the remaining power and/or voltage and/or voltage of the battery pack. 8 . /or current and/or cell temperature and/or fault, and the display device is an LCD display screen.

8 . The waterproof battery pack according to claim 7 , wherein a layer of waterproof labels is attached to the display device. 9 .

9 . The waterproof battery pack according to claim 1 , wherein the battery pack further comprises a charging interface, one end of the charging interface is electrically connected to the circuit board, and one end of the other end is provided with a charging interface. 10 . A third sealing ring is used to seal the battery pack housing and the charging interface.

10 . The waterproof battery pack according to claim 9 , wherein a protective cover is further provided outside the charging interface, and the protective cover is located at the insertion interface of the battery pack casing. 11 .