Electric tool with externally embedded battery pack

Abstract

The utility model discloses an electric tool with an externally embedded battery pack, which comprises a main shell, an adapter shell detachably connected with the main shell is arranged in the main shell, a battery pack component in pluggable connection with the adapter shell is arranged in the adapter shell, and the battery pack component comprises a battery pack main body and a button for locking; a first limiting column and a second limiting column are arranged on the main shell, and a first limiting hole and a second limiting hole are formed in the adapter shell; the first limiting column is installed in the first limiting hole, and the second limiting column is installed in the second limiting hole. A first limiting protrusion is arranged on the battery pack body, a first limiting groove is formed in the switching shell, and when the battery pack assembly is installed in the switching shell, the first limiting protrusion is clamped in the first limiting groove. According to the utility model, the switching shell used for switching is arranged between the main shell and the battery pack assembly, so that the battery pack is suitable for various types of control panels and battery pack assemblies, and the universality is better.

Description

Technical Field

[0001] This utility model belongs to the field of power tool technology, specifically relating to a power tool with an externally mounted battery pack. Background Technology

[0002] Power tool housings often feature a battery pack that snaps into the handle area, with a one-piece molded battery pack interface. A control board is located at this interface, allowing the power tool to power on when the battery pack and housing are assembled. However, in practical use, the control board and battery pack interface are often too large, making it difficult for the housing to properly accommodate them. This results in existing battery packs and housings being incompatible, necessitating redesign and significant resource waste. Therefore, a power tool with an externally mounted battery pack is needed to overcome these difficulties. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing an electric tool with an externally mounted battery pack. This invention provides an adapter housing between the main housing and the battery pack assembly for conversion, thereby adapting to various models of control boards and battery pack assemblies, resulting in better versatility.

[0004] The objective of this invention is achieved through the following technical solution: an electric tool with an externally mounted battery pack, comprising a main housing, an adapter housing detachably connected to the main housing, and a battery pack assembly pluggably connected to the adapter housing, the battery pack assembly including a battery pack body and a locking button; the main housing has a first limiting post and a second limiting post, and the adapter housing has a first limiting hole and a second limiting hole; the first limiting post is installed in the first limiting hole, and the second limiting post is installed in the second limiting hole; the battery pack body has a first limiting protrusion, and the adapter housing has a first limiting groove, wherein when the battery pack assembly is installed in the adapter housing, the first limiting protrusion is engaged in the first limiting groove.

[0005] Preferably, the main housing includes a first housing and a second housing joined together, and the adapter housing includes a third housing and a fourth housing joined together; the first housing is disposed outside the third housing, and the second housing is disposed outside the fourth housing; the first limiting post has a first screw hole, and the second limiting post has a second screw hole; the screw in the first screw hole passes through the second housing, the fourth housing, the third housing, and the first housing in sequence; the screw in the second screw hole passes through the fourth housing, the third housing, and the first housing in sequence; the button and the battery pack body are slidably connected, and the battery pack body is snapped into the adapter housing.

[0006] Preferably, the first housing is provided with a first limiting post, and the third housing is provided with a first limiting hole; the first limiting post is prismatic in shape, and the outline of the first limiting post and the outline of the first limiting hole are adapted to each other.

[0007] Preferably, the first housing is provided with a second limiting post, and the third housing and the fourth housing are both provided with a second limiting hole; the second limiting post is cylindrical, and the outline of the second limiting post and the outline of the second limiting hole are adapted to each other.

[0008] Preferably, the main housing has a pair of first strip-shaped slots, and the outer side of the adapter housing has a pair of first strip-shaped protrusions; the outlines of the first strip-shaped slots and the outlines of the first strip-shaped protrusions are adapted to each other, and when the adapter housing is installed in the main housing, the first strip-shaped protrusions are located in the first strip-shaped slots.

[0009] Preferably, the third housing has a first columnar protrusion, and the fourth housing has a first through hole. When the third housing and the fourth housing are fitted together, the first columnar protrusion is installed in the first through hole. The third housing has a screw mounting post, and the fourth housing has a mounting hole. The mounting hole and the screw mounting post are coaxially arranged.

[0010] Preferably, the adapter housing has a pair of first limiting grooves inside, and the outer side of the battery pack body has a pair of first limiting protrusions; the contours of the first limiting grooves and the contours of the first limiting protrusions are adapted to each other, and when the battery pack body is installed in the adapter housing, the first limiting protrusions are located in the first limiting grooves; the battery pack body has a button that is slidably connected to it.

[0011] Preferably, the button has a locking protrusion at its end and a limiting groove inside the adapter housing; when the button is pushed, the locking protrusion can move relative to the limiting groove.

[0012] Preferably, the outer layer of the main housing is provided with a detachable protective sleeve, and the protective sleeve, the adapter housing and the main housing are fixed together by screws.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The main shell and the adapter shell are designed separately and are fixed by screws for easy disassembly and assembly; 2. The adapter shell is equipped with a battery pack assembly that can be detachably connected to it, so that various types of battery pack assemblies can be installed through the adapter shell, avoiding repeated mold opening and improving versatility. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2This is an exploded view of the present invention;

[0016] Figure 3 This is a diagram of the internal structure of the present invention;

[0017] Figure 4 This is a three-dimensional view of the first shell.

[0018] Figure 5 This is a three-dimensional view of the second shell.

[0019] Figure 6 This is a three-dimensional view of the third shell.

[0020] Figure 7 This is a three-dimensional view of the fourth shell.

[0021] Figure 8 A 3D representation of the button;

[0022] The markings in the diagram are as follows: 1. Main housing; 101. First housing; 102. Second housing; 103. First strip-shaped slot; 2. Adapter housing; 21. Third housing; 22. Fourth housing; 23. First strip-shaped protrusion; 24. Limiting groove; 3. Battery pack assembly; 31. Battery pack body; 32. Button; 33. Locking protrusion; 4. First limiting post; 41. First screw hole; 5. Second limiting post; 51. Second screw hole; 6. First limiting hole; 7. Second limiting hole; 8. First limiting protrusion; 9. First limiting groove; 10. Sheath; 11. First columnar protrusion; 12. First through hole; 13. Screw mounting post; 14. Mounting hole; Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] like Figures 1 to 8 As shown, this embodiment discloses an electric tool with an externally mounted battery pack, including a main housing 1. The main housing 1 has an adapter housing 2 detachably connected to it. The adapter housing 2 has a battery pack assembly 3 pluggably connected to it. The battery pack assembly 3 includes a battery pack body 31 and a locking button 32. The main housing 1 has a first limiting post 4 and a second limiting post 5. The adapter housing 2 has a first limiting hole 6 and a second limiting hole 7. The first limiting post 4 is installed in the first limiting hole 6, and the second limiting post 5 is installed in the second limiting hole 7. The battery pack body 31 has a first limiting protrusion 8, and the adapter housing 2 has a first limiting groove 9. When the battery pack assembly 3 is installed in the adapter housing 2, the first limiting protrusion 8 is engaged in the first limiting groove 9.

[0025] The main housing 1 includes a first housing 101 and a second housing 102 that are spliced ​​together. The adapter housing 2 includes a third housing 21 and a fourth housing 22 that are spliced ​​together. The first housing 101 is located outside the third housing 21, and the second housing 102 is located outside the fourth housing 22. The first limiting post 4 has a first screw hole 41, and the second limiting post 5 has a second screw hole 51. The screw in the first screw hole 41 passes through the second housing 102, the fourth housing 22, the third housing 21, and the first housing 101 in sequence. The screw in the second screw hole 51 passes through the fourth housing 22, the third housing 21, and the first housing 101 in sequence. The button 32 and the battery pack body 31 are slidably connected, and the battery pack body 31 is snap-fitted into the adapter housing 2. The first housing 101 has a first limiting post 4, and the third housing 21 has a first limiting hole 6. The first limiting post 4 is prismatic, and the outline of the first limiting post 4 and the outline of the first limiting hole 6 are adapted to each other. The first housing 101 is provided with a second limiting post 5, and the third housing 21 and the fourth housing 22 are each provided with a second limiting hole 7; the second limiting post 5 is cylindrical, and the outline of the second limiting post 5 and the outline of the second limiting hole 7 are adapted to each other. The main housing 1 is provided with a pair of first strip-shaped slots 103, and the outer side of the adapter housing 2 is provided with a pair of first strip-shaped protrusions 23; the outlines of the first strip-shaped slots 103 and the outlines of the first strip-shaped protrusions 23 are adapted to each other, and when the adapter housing 2 is installed in the main housing 1, the first strip-shaped protrusions 23 are located in the first strip-shaped slots 103. The third housing 21 has a first columnar protrusion 11, and the fourth housing 22 has a first through hole 12. When the third housing 21 and the fourth housing 22 are fitted together, the first columnar protrusion 11 is installed in the first through hole 12. The third housing 21 has a screw mounting post 13, and the fourth housing 22 has a mounting hole 14. The mounting hole 14 and the screw mounting post 13 are coaxially arranged. The adapter housing 2 has a pair of first limiting grooves 9, and the outer side of the battery pack body 31 has a pair of first limiting protrusions 8. The contours of the first limiting grooves 9 and the first limiting protrusions 8 are adapted to each other. When the battery pack body 31 is installed in the adapter housing 2, the first limiting protrusions 8 are located in the first limiting grooves 9. The battery pack body 31 has a button 32 that is slidably connected to it. The end of the button 32 has a locking protrusion 33, and the adapter housing 2 has a limiting groove 24. When the button 32 is pushed, the locking protrusion 33 can move relative to the limiting groove 24. The outer layer of the main housing 1 is provided with a detachable protective sleeve 10, and the protective sleeve 10, the adapter housing 2 and the main housing 1 are fixed together by screws.

[0026] The specific operation process of this embodiment is as follows: When assembly is required, first fix the third housing 21 and the fourth housing 22 together with screws; align and install the first columnar protrusion 11 and the first through hole 12, and then drive screws into the screw mounting post 13 and the mounting hole 14, so that the third housing 21 and the fourth housing 22 can be fixed; then align and install the first limiting hole 6 on the adapter housing 2 and the first limiting post 4 on the main housing 1, align and install the second limiting hole 7 on the adapter housing 2 and the second limiting post 7 on the main housing 1, and then install the second housing 102. The main housing 1 and the adapter housing 2 are then fitted together and the sheath 10 is installed on the outside of the main housing 1. Finally, screws are driven into the first screw hole 41 and the second screw hole 51, so that the main housing 1 and the adapter housing 2 can be firmly installed together. When it is necessary to install the battery pack assembly 3, push the button 32 to make the locking protrusion 33 on the button 32 move aside, and then insert the battery pack body 31 into the adapter housing 2. Then push the button 32 again to make the locking protrusion 33 engage in the limiting groove 24 of the adapter housing 2, so that the battery pack assembly 3 and the adapter housing 2 can be stably assembled together.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A power tool with an externally mounted battery pack, comprising a main housing (1), characterized in that, The main housing (1) is provided with a detachable adapter housing (2), and the adapter housing (2) is provided with a pluggable battery pack assembly (3), which includes a battery pack body (31) and a locking button (32). The main housing (1) is provided with a first limiting post (4) and a second limiting post (5), and the adapter housing (2) is provided with a first limiting hole (6) and a second limiting hole (7). The first limiting post (4) is installed in the first limiting hole (6), and the second limiting post (5) is installed in the second limiting hole (7). The battery pack body (31) is provided with a first limiting protrusion (8), and the adapter housing (2) is provided with a first limiting groove (9). When the battery pack assembly (3) is installed in the adapter housing (2), the first limiting protrusion (8) is stuck in the first limiting groove (9).

2. The power tool with an externally mounted battery pack according to claim 1, characterized in that, The main housing (1) includes a first housing (101) and a second housing (102) spliced ​​together. The adapter housing (2) includes a third housing (21) and a fourth housing (22) spliced ​​together. The first housing (101) is located on the outside of the third housing (21), and the second housing (102) is located on the outside of the fourth housing (22). The first limiting post (4) has a first screw hole (41), and the second limiting post (5) has a second screw hole (51). The screw in the first screw hole (41) passes through the second housing (102), the fourth housing (22), the third housing (21), and the first housing (101) in sequence. The screw in the second screw hole (51) passes through the fourth housing (22), the third housing (21), and the first housing (101) in sequence. The button (32) and the battery pack body (31) are slidably connected, and the battery pack body (31) is snapped into the adapter housing (2).

3. The power tool with an externally mounted battery pack according to claim 2, characterized in that, The first housing (101) is provided with a first limiting post (4), and the third housing (21) is provided with a first limiting hole (6); the first limiting post (4) is prismatic, and the outline of the first limiting post (4) and the outline of the first limiting hole (6) are adapted to each other.

4. The power tool with an externally mounted battery pack according to claim 2, characterized in that, The first housing (101) is provided with a second limiting post (5), and the third housing (21) and the fourth housing (22) are both provided with a second limiting hole (7); the second limiting post (5) is cylindrical, and the outline of the second limiting post (5) and the outline of the second limiting hole (7) are adapted to each other.

5. The power tool with an externally mounted battery pack according to claim 2, characterized in that, The main housing (1) is provided with a pair of first strip slots (103), and the outer side of the adapter housing (2) is provided with a pair of first strip protrusions (23); the outline of the first strip slot (103) and the outline of the first strip protrusion (23) are adapted to each other, and when the adapter housing (2) is installed in the main housing (1), the first strip protrusion (23) is set in the first strip slot (103).

6. The power tool with an externally mounted battery pack according to claim 2, characterized in that, The third housing (21) is provided with a first columnar protrusion (11), and the fourth housing (22) is provided with a first through hole (12). When the third housing (21) and the fourth housing (22) are fitted together, the first columnar protrusion (11) is installed in the first through hole (12). The third housing (21) is provided with a screw mounting post (13), and the fourth housing (22) is provided with a mounting hole (14). The mounting hole (14) and the screw mounting post (13) are coaxially arranged.

7. The power tool with an externally mounted battery pack according to claim 2, characterized in that, The adapter housing (2) is provided with a pair of first limiting grooves (9), and the battery pack body (31) is provided with a pair of first limiting protrusions (8) on its outer side; the outlines of the first limiting grooves (9) and the first limiting protrusions (8) are adapted to each other, and when the battery pack body (31) is installed in the adapter housing (2), the first limiting protrusions (8) are located in the first limiting grooves (9); the battery pack body (31) is provided with a button (32) that is slidably connected to it.

8. The power tool with an externally mounted battery pack according to claim 7, characterized in that, The button (32) has a locking protrusion (33) at its end, and the adapter housing (2) has a limiting groove (24) inside; when the button (32) is pushed, the locking protrusion (33) can move relative to the limiting groove (24).

9. The power tool with an externally mounted battery pack according to claim 1, characterized in that, The outer layer of the main housing (1) is provided with a detachable protective sleeve (10), and the protective sleeve (10), the adapter housing (2) and the main housing (1) are fixed together by screws.

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