Battery pack convenient to install

Abstract

The utility model relates to the technical field of battery packs, and discloses a battery pack convenient to install, which comprises an upper shell, a lower shell and a fixing assembly, a clamping groove is formed in the upper shell; the lower shell is arranged below the upper shell, and the lower shell and the upper shell are connected in a buckled mode to form a containing cavity. A battery cell module is arranged in the placing cavity; the fixing assembly comprises a fixing table and two sets of clamping blocks. The fixing table is arranged in the upper shell and located above the containing cavity. The two groups of clamping blocks are distributed at one end of the fixed table left and right; one end of each clamping block is provided with a protruding part extending outwards. The two clamping block pieces are connected with elastic pieces. The two sides of the upper shell are provided with open grooves for the protruding parts to be exposed, and the open grooves are located in the side walls of the clamping grooves. A guide assembly used for guiding the clamping block is arranged between the upper shell and the fixing table.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a battery pack that is easy to install. Background Art

[0002] In the field of power tools, cordless power tools often use high energy density battery packs as power tool battery packs to power the power tools.

[0003] The power tool battery pack has a power tool interface connected to the power tool or the charger. When the charger is connected, the charger charges the battery pack in the power tool battery pack, and when the power tool is connected, the power tool battery pack discharges the battery pack. For example, the Chinese patent document with publication number CN 204088423U, whose patent name is A lithium battery pack for an electric tool, mentions "comprising a battery pack lower cover, a battery pack and an upper cover, wherein a battery pack is installed in an inner cavity where the lower cover and the upper cover are buckled together, a control panel is connected to the upper end of the battery pack, a DC socket connected to the battery pack at the lower end is arranged in a rectangular notch arranged on one side of the control panel, a battery pack button seat is movably installed on one side of the control panel, and a spring connected to the battery pack at the lower end is installed on the inner side of the lower end of the battery pack button seat". This structure solves the problems of large size, heavy weight and inconvenience in carrying. However, the fixing effect between the existing battery pack and the electric tool is poor. When the electric tool is working, it will produce severe vibration or accidental contact, and the battery pack is easy to detach from the card slot of the electric tool, causing the battery pack to fall off, affecting the normal use of the electric tool.

[0004] Therefore, there is an urgent need for a battery pack that is easy to install to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a battery pack that is easy to install, so as to solve the problem that the fixing effect between the existing battery pack and the power tool is poor, and the battery pack is easy to detach from the card slot of the power tool, causing the battery pack to fall and affecting the normal use of the power tool.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A battery pack that is easy to install, a battery pack that is easy to install, comprising an upper shell, a lower shell and a fixing assembly; a card slot is provided on the upper shell; the lower shell is arranged below the upper shell, and the lower shell is snap-fitted and connected to the upper shell to form a placement cavity; a battery cell module is arranged in the placement cavity; the fixing assembly comprises a fixing platform and two groups of card blocks; the fixing platform is arranged in the upper shell and is located above the placement cavity; the two groups of card blocks are distributed on one end of the fixing platform on the left and right; a protrusion extending outward is provided at one end of the card block; the two groups of card blocks are connected with an elastic member; slots for the protrusion to be exposed outside are provided on both sides of the upper shell, and the slots are located on the side walls of the card slot; a guide assembly for guiding the card block is provided between the upper shell and the fixing platform.

[0008] As a preferred solution for a battery pack that is easy to install, a pressing portion protruding outward is provided on one side of the block; and a friction layer is provided on the pressing portion.

[0009] As a preferred solution for a battery pack that is easy to install, the guide assembly includes a first guide column, a second guide column, a first guide groove and a second guide groove; the first guide groove is arranged on the pressing portion; the second guide column is arranged on the raised portion; the first guide column and the second guide column are arranged front and back in the upper shell; the first guide column is arranged opposite to the first guide groove, and the second guide column is arranged opposite to the second guide groove.

[0010] As a preferred solution for a battery pack that is easy to install, the first guide column is slidably connected to the first guide groove, and the second guide column is slidably connected to the second guide groove; the first guide column and the second guide column are respectively fixedly connected to the fixing platform.

[0011] As a preferred solution for a battery pack that is easy to install, a first slide groove is provided on the pressing portion, and the first guide groove is located on one side of the first slide groove; a first guide rail corresponding to the first slide groove is provided in the upper shell.

[0012] As a preferred solution for a battery pack that is easy to install, a second slide groove is provided on the raised portion, and the second slide groove is located on one side of the second slide groove; a second guide rail corresponding to the second slide groove is provided in the upper shell.

[0013] As a preferred solution for a battery pack that is easy to install, a limit block is provided on the fixing platform; the limit block is located between the two groups of the clamping blocks.

[0014] As a preferred solution for a battery pack that is easy to install, the battery cell module includes a circuit board, a battery cell holder and a metal connecting piece; the circuit board is arranged under the fixing platform, and a connecting terminal is arranged at one end of the circuit board; the battery cell holder is arranged under the circuit board, and a plurality of placement slots are arranged in the battery cell holder; the metal connecting piece is arranged on the battery cell holder and connected to the circuit board.

[0015] As a preferred solution for a battery pack that is easy to install, the connecting terminal is passed through the fixing platform and extends into the upper shell; a limiting groove corresponding to the connecting terminal is provided in the upper shell.

[0016] As a preferred solution for a battery pack that is easy to install, the upper shell is provided with outwardly extending connecting pins at the four corners, and the connecting pins are provided with fixing grooves; the lower shell is provided with fixing blocks corresponding to the fixing grooves at the four corners; and the connecting pins are fixedly connected to the lower shell.

[0017] The beneficial effects of the utility model are:

[0018] By setting a fixing component, when the power tool and the battery pack are installed, the bottom end of the power tool is installed on the upper shell along the card slot, and is engaged with the bottom end of the power tool through the protrusions on both sides, so as to prevent the battery pack from falling off from the bottom end of the power tool easily, thereby improving the installation stability of the battery pack; when disassembling, by pressing the card blocks on both sides, the card blocks drive the protrusions to detach from the bottom end of the power tool, thereby facilitating the disassembly between the power tool and the battery pack and simplifying the installation steps between the power tool and the battery pack; at the same time, by setting a guide component, the card block can move smoothly during the movement to avoid jamming, and the guide component can also limit the stroke of the card block to prevent the card block from exceeding the stroke, thereby improving the service life of the card block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of a battery pack that is easy to install provided by the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the fixing assembly provided by the utility model;

[0021] Figure 3 A schematic diagram of the overall structure of the fixing assembly provided by the utility model;

[0022] Figure 4 A schematic diagram of the overall structure of the upper shell provided by the utility model;

[0023] Figure 5 A schematic diagram of the overall structure of the lower shell provided by the utility model;

[0024] Figure 6This is a schematic diagram of the overall structure of the battery module provided by the utility model.

[0025] Among them, the reference numerals in the figure are:

[0026] 10. Upper shell; 11. Card slot; 12. Limiting slot; 13. Connecting foot; 14. Fixing slot; 20. Lower shell; 21. First guide rail; 22. Second guide rail; 23. Fixing block; 31. Fixing platform; 311. Limiting block; 32. Card block; 321. Protruding portion; 322. Pressing portion; 33. Elastic member; 34. First slide groove; 35. Second slide groove; 40. First guide column; 42. Second guide column; 43. First guide groove; 44. Second guide groove; 50. Circuit board; 51. Cell holder; 511. Placement slot; 52. Metal connecting piece; 53. Connecting terminal. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present utility model.

[0031] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more than two. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] In one embodiment of the present invention, Figure 1-6 As shown, a battery pack that is easy to install is provided, including an upper shell 10, a lower shell 20 and a fixing assembly. A card slot 11 is provided on the upper shell 10. The lower shell 20 is arranged below the upper shell 10, and the lower shell 20 is snap-fitted and connected to the upper shell 10 to form a placement cavity. A battery cell module is arranged in the placement cavity. The fixing assembly includes a fixing platform 31 and two groups of card blocks 32. The fixing platform 31 is arranged in the upper shell 10 and is located above the placement cavity. The two groups of card blocks 32 are distributed on one end of the fixing platform 31. A protrusion 321 extending outward is provided at one end of the card block 32. The two groups of card blocks 32 are connected with an elastic member 33. Grooves for the protrusion 321 to be exposed are provided on both sides of the upper shell 10, and the grooves are located on the side walls of the card slot 11. A guide assembly for guiding the card block 32 is provided between the upper shell 10 and the fixing platform 31.

[0033] In this embodiment, the elastic member 33 includes a telescopic rod and a spring. The telescopic rod is disposed between the two groups of blocks 32. The spring is sleeved outside the telescopic rod and is located between the two groups of blocks 32. Under the action of the telescopic rod and the spring, the two groups of blocks 32 have a force to move away from each other, so that the protrusion 321 of the block 32 can be stably clamped on the bottom end of the power tool, thereby improving the stability of the battery pack installed on the bottom end of the power tool.

[0034] By setting a fixing component, when the power tool and the battery pack are installed, the bottom end of the power tool is installed on the upper shell 10 along the card slot 11, and is engaged with the bottom end of the power tool through the protrusions 321 on both sides, so as to prevent the battery pack from falling off the bottom end of the power tool easily, thereby improving the installation stability of the battery pack. When disassembling, by pressing the card blocks 32 on both sides, the card blocks 32 drive the protrusions 321 to detach from the bottom end of the power tool, thereby facilitating the disassembly between the power tool and the battery pack and simplifying the installation steps between the power tool and the battery pack. At the same time, by setting a guide component, the card block 32 can move smoothly during the movement to avoid jamming, and the guide component can also limit the stroke of the card block 32 to prevent the card block 32 from moving beyond the stroke, thereby improving the service life of the card block 32.

[0035] Preferably, a pressing portion 322 protruding outward is provided on one side of the block 32. A friction layer is provided on the pressing portion 322. The friction layer includes a plurality of groups of bosses distributed on the pressing portion 322 at equal intervals. The friction force on the surface of the pressing portion 322 is increased by providing the friction layer, so that the pressing portion 322 can better contact with the pressed object and exert force.

[0036] Specifically, the guide assembly includes a first guide column 40, a second guide column 42, a first guide groove 43 and a second guide groove 44. The first guide groove 43 is provided on the pressing portion 322. The second guide column 42 is provided on the protrusion 321. The first guide column 40 and the second guide column 42 are provided in the upper shell 10 front and back. The first guide column 40 is arranged opposite to the first guide groove 43, and the second guide column 42 is arranged opposite to the second guide groove 44. The first guide column 40 is slidably connected to the first guide groove 43, and the second guide column 42 is slidably connected to the second guide groove 44. The first guide column 40 and the second guide column 42 are fixedly connected to the fixed platform 31 respectively. By providing the first guide column 40, the second guide column 42, the first guide groove 43 and the second guide groove 44, when the block 32 moves, under the guiding action of the first guide column 40, the second guide column 42, the first guide groove 43 and the second guide groove 44, the block 32 can move smoothly between the fixed platform 31 and the upper shell 10 to avoid jamming. At the same time, the first guide column 40, the second guide column 42, the first guide groove 43 and the second guide groove 44 can also play a limiting role to avoid the block 32 from moving beyond the travel, thereby increasing the service life of the block 32.

[0037] Furthermore, the pressing portion 322 is provided with a first slide groove 34, and the first guide groove 43 is located on one side of the first slide groove 34. A first guide rail corresponding to the first slide groove 34 is provided in the upper shell 10. By providing the first slide groove 34 and the first guide groove 43, a guiding effect is played between the block 32 and the upper shell 10, so that the block 32 can move smoothly.

[0038] Furthermore, the protrusion 321 is provided with a second slide groove 35, and the second slide groove 35 is located on one side of the second slide groove 35. The upper shell 10 is provided with a second guide rail 21 and a first guide rail 22 corresponding to the second slide groove 35. By providing the second slide groove 35 and the second guide groove 44, a guiding effect is played between the block 32 and the upper shell 10, so that the block 32 can move smoothly.

[0039] Furthermore, a limit block 311 is provided on the fixing platform 31. The limit block 311 is located between the two groups of card blocks 32. By providing the limit block 311, the limit position of the movement of the two groups of card blocks 32 is limited, so that the two groups of card blocks 32 are prevented from overtravel and causing the two groups of card blocks 32 to collide, thereby increasing the service life of the card blocks 32.

[0040] Preferably, the battery module includes a circuit board 50, a battery bracket 51 and a metal connecting piece 52. The circuit board 50 is arranged below the fixing platform 31, and a connecting terminal 53 is arranged at one end of the circuit board 50. The battery bracket 51 is arranged below the circuit board 50, and a plurality of placement grooves 511 are arranged in the battery bracket 51, and the battery is installed in the placement grooves 511. The metal connecting piece 52 is arranged on the battery bracket 51 and connected to the circuit board 50. Under the action of the battery, the circuit board 50 and the metal connecting piece 51, the power source is provided to the electric tool through the connecting terminal 53.

[0041] Furthermore, the connection terminal 53 is inserted through the fixing platform 31 and extends into the upper housing 10. A limiting groove 12 corresponding to the connection terminal 53 is provided in the upper housing 10. By providing the limiting groove 12, the connection terminal 53 can be stably installed between the upper housing 10 and the upper shell, thereby improving the connection stability of the connection terminal 53.

[0042] Preferably, the upper shell 10 is provided with connecting feet 13 extending outward at four corners, and the connecting feet 13 are provided with fixing grooves 14. The lower shell 20 is provided with fixing blocks 23 corresponding to the fixing grooves 14 at four corners. The connecting feet 13 are fixedly connected to the lower shell 20. When the upper shell 10 and the lower shell 20 are installed, the fixing grooves 14 are engaged with the fixing blocks 23 to complete the preliminary fixation, and then the upper shell 10 and the lower shell 20 are further fixed by screws, thereby achieving the fixation between the upper shell 10 and the lower shell 20, simplifying the fixing steps between the upper shell 10 and the lower shell 20.

[0043] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A battery pack that is easy to install, characterized in that: include: An upper shell, wherein a card slot is provided on the upper shell; A lower shell, the lower shell is arranged below the upper shell, the lower shell is buckled and connected with the upper shell to form a placement cavity; a battery cell module is arranged in the placement cavity; A fixing assembly, the fixing assembly comprising a fixing platform and two groups of card blocks; the fixing platform is arranged in the upper shell and is located above the placement cavity; the two groups of card blocks are distributed on one end of the fixing platform; one end of the card block is provided with a protrusion extending outward; the two groups of card blocks are connected with an elastic member; Wherein, grooves for the protrusion to be exposed are arranged on both sides of the upper shell, and the grooves are located on the side walls of the card slot; and a guide component for guiding the card block is arranged between the upper shell and the fixing platform.

2. The battery pack that is easy to install according to claim 1, characterized in that: A pressing portion protruding outward is provided on one side of the clamping block; a friction layer is provided on the pressing portion.

3. The easy-to-install battery pack according to claim 2, characterized in that: The guide assembly includes a first guide column, a second guide column, a first guide groove and a second guide groove; the first guide groove is arranged on the pressing part; the second guide column is arranged on the protruding part; the first guide column and the second guide column are arranged in the upper shell body front and back; the first guide column is arranged opposite to the first guide groove, and the second guide column is arranged opposite to the second guide groove.

4. The battery pack that is easy to install according to claim 3, characterized in that: The first guide post is slidably connected to the first guide groove, and the second guide post is slidably connected to the second guide groove; the first guide post and the second guide post are fixedly connected to the fixing platform respectively.

5. The battery pack that is easy to install according to claim 4, characterized in that: The pressing portion is provided with a first slide groove, and the first guide groove is located at one side of the first slide groove; and the upper shell is provided with a first guide rail corresponding to the first slide groove.

6. The battery pack that is easy to install according to claim 5, characterized in that: The protruding portion is provided with a second slide groove, and the second slide groove is located at one side of the second slide groove; a second guide rail corresponding to the second slide groove is provided in the upper shell body.

7. The easy-to-install battery pack according to claim 1, characterized in that: The fixing platform is provided with a limit block; the limit block is located between the two groups of the clamping blocks.

8. The battery pack that is easy to install according to claim 1, characterized in that: The battery cell module includes a circuit board, a battery cell bracket and a metal connecting piece; the circuit board is arranged below the fixing platform, and a connecting terminal is arranged at one end of the circuit board; the battery cell bracket is arranged below the circuit board, and a plurality of placement slots are arranged in the battery cell bracket; the metal connecting piece is arranged on the battery cell bracket and connected to the circuit board.

9. The battery pack that is easy to install according to claim 8, characterized in that: The connecting terminal is passed through the fixing platform and extends into the upper shell; a limiting groove corresponding to the connecting terminal is arranged in the upper shell.

10. The easy-to-install battery pack according to claim 1, characterized in that: The upper shell has four corners with outwardly extending connecting feet, and the connecting feet are provided with fixing grooves; the lower shell has four corners with fixing blocks corresponding to the fixing grooves; the connecting feet are fixedly connected to the lower shell.

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