Chain saw

Abstract

The utility model discloses a chain saw which comprises a shell, a motor and a plug-in type battery pack, the motor and the plug-in type battery pack are installed in the shell, a handle is arranged at one end of the shell, the motor is located at the other end of the shell, the plug-in type battery pack is located between the handle and the motor, the chain saw comprises a battery bin, and the battery bin is arranged in the shell. The battery compartment is mounted in the shell, and the plug-in battery pack is mounted in the shell through the battery compartment. The chain saw provides a mounting structure for the plug-in battery pack in an indirect connection mode, the mounting structure is independent of the shell, and the mounting function of the shell and the plug-in battery pack can be recovered in a replacement mode. And the technical effect that different plug-in type battery packs are configured by using the same shell can be realized, so that the compatibility of the chain saw is greatly improved.

Description

Technical Field

[0001] This utility model relates to a chainsaw, and more particularly to a pluggable battery pack mounting structure for the chainsaw. Background Technology

[0002] Wireless chainsaws, powered by removable battery packs, offer significant flexibility compared to corded, electrically driven chainsaws. However, removable battery packs have limited power, and a single pack is insufficient for extended operation; typically, power can only be obtained by replacing the entire battery pack. Currently, the structure for mounting the removable battery pack in a chainsaw consists solely of the chainsaw's housing; the battery pack mounting mechanism is simply a component within the housing. The drawback of this design is that if the battery pack mounting structure is damaged, the entire housing must be replaced for repair. Clearly, this is extremely costly for consumers. Furthermore, in existing technology, the battery pack mounting structure is fixed to the housing. Due to rapid advancements in battery technology, there are instances where next-generation battery technologies require optimized mounting structures. Consequently, chainsaws cannot be equipped with next-generation removable battery packs, meaning they are incompatible with other battery pack models. Summary of the Invention

[0003] The technical problem to be solved by this invention is how to replace the installation structure of the pluggable battery pack, thereby obtaining a chainsaw with lower operating costs.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The chainsaw includes a housing, a motor, and a pluggable battery pack. The motor and the pluggable battery pack are installed inside the housing. A handle is provided at one end of the housing, and the motor is located at the other end of the housing. The pluggable battery pack is located between the handle and the motor. The chainsaw includes a battery compartment, which is installed inside the housing. The pluggable battery pack is installed inside the housing through the battery compartment. The battery compartment has a cavity for accommodating the pluggable battery pack. The top of the battery compartment has an opening for the pluggable battery pack to pass through. A socket is provided on the inner side wall of the battery compartment, and a locking component is provided on the outer side wall of the battery compartment. The inner bottom surface of the battery compartment has an ejection part for pushing the pluggable battery pack out of the battery compartment. The battery compartment has a pop-out component extending towards the opening. A limiting protrusion is provided on the outer wall of the battery compartment, and the arrangement of the limiting protrusion is inclined to the direction of the battery compartment opening. A limiting hole corresponding to the limiting protrusion is provided inside the housing. A positioning rib is provided on the top of the battery compartment. A positioning groove corresponding to the positioning rib is provided inside the housing. A support surface corresponding to the bottom of the battery compartment is provided inside the housing. The battery compartment is fixedly connected to the housing by the limiting protrusion being embedded in the limiting hole and the positioning rib being embedded in the positioning groove. The bottom of the battery compartment is connected to the support surface. The pluggable battery pack is movably connected to the housing by being embedded in the battery compartment. The pluggable battery pack is movably connected to the battery compartment by a locking component. The socket is connected to the output port of the pluggable battery pack.

[0005] The design concept of this technical solution is that the pluggable battery pack is not directly connected to the housing, but rather indirectly connected through a battery compartment. Before assembly, the battery compartment structure is independent of the housing, eliminating the need for the housing to accommodate the structure for installing the pluggable battery pack, thus significantly reducing the complexity of the housing structure. The battery compartment only needs to meet the requirement of accommodating the pluggable battery pack; its volume is smaller than the housing volume, simplifying design and manufacturing, and making assembly between the battery compartment and the housing easy. When the battery compartment is damaged, it can be repaired by disassembling the housing and replacing it with a new battery compartment. Furthermore, when a new generation of pluggable battery packs requires a new connection method, or when using a different pluggable battery pack with a different connection method, only the battery compartment with the corresponding connection method needs to be replaced, allowing the existing chainsaw to be optimized and modified. This design allows for the use of the same housing to accommodate different pluggable battery packs, thereby significantly improving the chainsaw's compatibility.

[0006] To facilitate standardized docking, the battery compartment is equipped with two opposing guide rails located inside the compartment. The pluggable battery pack has guide grooves on both sides corresponding to the guide rails. The pluggable battery pack slides within the battery compartment by embedding itself in these guide grooves. When the distance between the guide rails and the inner wall of the battery compartment is fixed, the pluggable battery pack has a fixed range of motion based on the guide rails, which is beneficial for achieving standardized docking. To reduce the weight of the battery compartment, the guide rails are not solid. Instead, the cross-section of the guide rail in the direction perpendicular to its extension direction is S-shaped. Straight guide sections are staggered on both sides of the guide rail in the extension direction, and connecting parts are provided between these guide sections.

[0007] As a preferred locking component, the locking component includes a locking fastener and a torsion spring. The middle part of the locking fastener is movably mounted on the housing via a pivot. The torsion spring is sleeved on the pivot. One end of the torsion spring is connected to the locking fastener, and the other end of the torsion spring is connected to the housing. One end of the locking fastener is a pressing part located outside the housing, and the other end of the locking fastener is a lock head located inside the housing. The surface of the pluggable battery pack is provided with a lock hole corresponding to the lock head.

[0008] The pop-out component is used to push the plug-in battery pack out of the battery compartment. The pop-out component includes a spring seat, a compression spring, and a rubber sleeve. One end of the compression spring is fixed to the spring seat. The rubber sleeve has a semi-enclosed structure. Both the compression spring and the spring seat are embedded in the rubber sleeve. The battery compartment has a mounting groove for installing the pop-out component. One end of the rubber sleeve and the spring seat are located in the mounting groove.

[0009] This utility model adopts the above-mentioned technical solution: the chainsaw provides an installation structure for a pluggable battery pack through an indirect connection. The installation structure is independent of the housing, and the installation function of the housing and the pluggable battery pack can be restored by replacement. It also allows for the use of the same housing to configure different pluggable battery packs, thereby significantly improving the chainsaw's compatibility. Attached Figure Description

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of a chainsaw of the present invention, which is equipped with a pluggable battery pack.

[0012] Figure 2 This is a schematic diagram of the battery compartment and housing assembly of a chainsaw according to the present invention;

[0013] Figure 3 This is a perspective view of the housing of a chainsaw according to the present invention;

[0014] Figure 4 This is a schematic diagram of the internal structure of the casing of a chainsaw according to the present invention;

[0015] Figure 5 This is a perspective view of the battery compartment of a chainsaw according to the present invention.

[0016] Figure 6 This is a schematic diagram of the internal structure of the battery compartment of a chainsaw according to the present invention;

[0017] Figure 7 A perspective view of a pluggable battery pack for a chainsaw according to this utility model;

[0018] Figure 8 This is a schematic diagram of the ejector component of a chainsaw, which is a utility model. Detailed Implementation

[0019] like Figure 1 , 2 As shown in figures 3, 4, 5, 6, 7, and 8, the chainsaw has a housing 1, a motor 2, a pluggable battery pack 3, and a battery compartment 4. The motor 2, the pluggable battery pack 3, and the battery compartment 4 are all installed inside the housing 1. One end of the housing 1 has a handle structure for easy hand gripping, and the motor 2 is located at the other end of the housing 1, adjacent to the drive chain. The battery compartment 4 is used to install the pluggable battery pack 3. The battery compartment 4 is fixedly connected to the housing 1 and located inside the housing 1; thus, the pluggable battery pack 3 is installed inside the housing 1 through the battery compartment 4.

[0020] The battery compartment 4 has a cavity inside to accommodate the pluggable battery pack 3, and the top of the battery compartment 4 has an opening for the pluggable battery pack 3 to pass through, which is exposed on the surface of the housing 1.

[0021] The inner wall of the battery compartment 4 is provided with a socket 20 for connecting the pluggable battery pack 3 to draw power and a guide rail 5 for guiding the movement of the pluggable battery pack 3. The outer wall of the battery compartment 4 is provided with a locking component 6 for connecting the pluggable battery pack 3. The inner bottom surface of the battery compartment 4 is provided with an ejection component 8 for pushing the pluggable battery pack 3 out of the battery compartment 4.

[0022] The locking component 6 includes a locking element 7 and a torsion spring. The locking element 7 is elongated, and its middle portion is movably mounted on the housing 1 via a pivot, allowing it to swing on the housing 1. The torsion spring is fitted onto the pivot, with one end connected to the locking element 7 and the other end connected to the housing 1. The force exerted by the torsion spring on the locking element 7 causes it to swing to its extreme position. One end of the locking element 7 is a pressing part, which is always located outside the housing 1. The other end of the locking element 7 is a lock head, which can pass through the housing 1 and extend into its interior. The surface of the plug-in battery pack 3 has a lock hole corresponding to the lock head. Initially, the lock head is inside the housing 1. When the plug-in battery pack 3 is located inside the battery compartment 4, the lock head can be inserted into the lock hole, thus connecting the plug-in battery pack 3 and the battery compartment 4 as one unit. In use, pressing the pressing part of the locking element 7 located outside the battery compartment 4 disengages the lock head from the cavity of the battery compartment 4.

[0023] The socket 20 is located near the bottom of the battery compartment 4. A guide rail 5 is distributed on each side of the socket 20, and all guide rails 5 are located inside the battery compartment 4. The pluggable battery pack 3 has guide grooves 9 on both sides corresponding to the guide rails 5. When the pluggable battery pack 3 is inserted into the battery compartment 4, the guide rails 5 embed into the guide grooves 9, guiding the direction of movement. The pluggable battery pack 3 can also slide within the battery compartment 4 via the guide rails 5 embedded in the guide grooves 9. The two guide rails 5 are not solid structures. The cross-section of the guide rail 5 in the direction perpendicular to its extension direction is S-shaped. Straight guide portions 10 are staggered on both sides of the guide rail 5 in its extension direction, and connecting portions 11 are provided between the guide portions 10. Because the surface of the guide grooves 9 is continuous, the guide portions 10 of the guide rails 5 can continuously provide guidance to the pluggable battery pack 3.

[0024] The pop-out component 8 is located at the bottom of the cavity of the battery compartment 4, extending towards the opening. The pop-out component 8 includes a spring seat 12, a compression spring 13, and a rubber sleeve 14. One end of the compression spring 13 is fixed to the spring seat 12, and two compression springs 13 are fixedly mounted on the spring seat 12. The rubber sleeve 14 has a semi-enclosed structure; during installation, the other end of the compression spring 13 extends into the rubber sleeve 14 until the spring seat 12 is embedded within it. The battery compartment 4 has an internal mounting groove for installing the pop-out component 8; during installation, one end of the rubber sleeve 14 and the spring seat 12 are located within the mounting groove.

[0025] The outer wall of the battery compartment 4 is provided with limiting protrusions 15, the arrangement direction of which is inclined to the opening direction of the battery compartment 4; the inside of the housing 1 is provided with limiting holes 16 corresponding to the limiting protrusions 15, and after installation, the limiting protrusions 15 are embedded in the limiting holes 16. The top of the battery compartment 4 is provided with positioning ribs 17, and the inside of the housing 1 is provided with positioning grooves 18 corresponding to the positioning ribs 17, and after installation, the positioning ribs 17 are embedded in the positioning grooves 18. The inside of the housing 1 is provided with a support surface 19 corresponding to the bottom of the battery compartment 4, and after installation, the bottom of the battery compartment 4 is connected to the support surface 19, which provides support force to the battery compartment 4. The top of the battery compartment 4 is provided with a stepped surface, and after installation, the housing 1 covers the stepped surface, so that the battery compartment 4 forms a continuous transition structure at the surface of the housing 1 where the opening is located. Finally, the battery compartment 4 is fixedly connected to the housing 1.

[0026] When the plug-in battery pack 3 is attached to the housing 1, first insert the bottom of the plug-in battery pack 3 with the output port into the battery compartment 4, align the guide groove 9 with the guide rail 5, and lower the plug-in battery pack 3 according to the guidance of the guide rail 5 and its own weight. Then push the plug-in battery pack 3 forcefully until the lock head is embedded in the lock hole and the socket 20 is connected to the output port of the plug-in battery pack 3. At this time, pushing the plug-in battery pack 3 will squeeze the pop-out part 8, and the compression spring 13 and rubber sleeve 14 will be deformed. Since the plug-in battery pack 3 is movably connected to the housing 1 by being embedded in the battery compartment 4, and the plug-in battery pack 3 is movably connected to the battery compartment 4 by the locking part 6, the lock head can be disengaged from the lock hole by the latch 7 to achieve the unlocking effect. The pop-out part 8 pushes the plug-in battery pack 3 to move out of the housing 1, and the plug-in battery pack 3 can be removed from the housing 1.

Claims

1. A chainsaw, the chainsaw comprising a housing (1), a motor (2), and a pluggable battery pack (3), the motor (2) and the pluggable battery pack (3) being mounted inside the housing (1), a handle being provided at one end of the housing (1), the motor (2) being located at the other end of the housing (1), and the pluggable battery pack (3) being located between the handle and the motor (2), characterized in that: The chainsaw includes a battery compartment (4), which is installed inside a housing (1). A pluggable battery pack (3) is installed inside the housing (1) via the battery compartment (4). The battery compartment (4) has a cavity for accommodating the pluggable battery pack (3). The top of the battery compartment (4) has an opening for the pluggable battery pack (3). A socket (20) is provided on the inner wall of the battery compartment (4), and a locking component (6) is provided on the outer wall of the battery compartment (4). An ejector component (8) is provided on the inner bottom surface of the battery compartment (4) for ejecting the pluggable battery pack (3) from the battery compartment (4). The ejector component (8) extends towards the opening. A limiting protrusion (15) is provided on the outer wall of the battery compartment (4). The arrangement direction of the limiting protrusion (15) is inclined to the direction of the opening of the battery compartment (4). The housing ( 1) The internal part is provided with a limiting hole (16) corresponding to the limiting protrusion (15), the top of the battery compartment (4) is provided with a positioning rib (17), the internal part of the housing (1) is provided with a positioning groove (18) corresponding to the positioning rib (17), the internal part of the housing (1) is provided with a support surface (19) corresponding to the bottom of the battery compartment (4), the battery compartment (4) is fixedly connected to the housing (1) by the limiting protrusion (15) embedded in the limiting hole (16) and the positioning rib (17) embedded in the positioning groove (18), the bottom of the battery compartment (4) is connected to the support surface (19), the plug-in battery pack (3) is movably connected to the housing (1) by being embedded in the battery compartment (4), the plug-in battery pack (3) is movably connected to the battery compartment (4) by the locking component (6), and the socket (20) is connected to the output port of the plug-in battery pack (3).

2. The chainsaw according to claim 1, characterized in that: The battery compartment (4) is provided with two opposing guide rails (5). The guide rails (5) are located inside the battery compartment (4). The plug-in battery pack (3) has guide grooves (9) on both sides corresponding to the guide rails (5). The plug-in battery pack (3) slides in the battery compartment (4) by being embedded in the guide grooves (9) through the guide rails (5). The cross-section of the guide rails (5) in the direction perpendicular to the extension direction of the guide rails (5) is S-shaped. The guide rails (5) have straight guide parts (10) staggered on both sides of the extension direction. The guide rails (5) have connecting parts (11) between the guide parts (10).

3. The chainsaw according to claim 1, characterized in that: The locking component (6) includes a locking buckle (7) and a torsion spring. The middle part of the locking buckle (7) is movably mounted on the housing (1) via a rotating shaft. The torsion spring is sleeved on the rotating shaft. One end of the torsion spring is connected to the locking buckle (7), and the other end of the torsion spring is connected to the housing (1). One end of the locking buckle (7) is a pressing part located outside the housing (1). The other end of the locking buckle (7) is a lock head located inside the housing (1). The surface of the pluggable battery pack (3) is provided with a lock hole corresponding to the lock head.

4. The chainsaw according to claim 1, characterized in that: The pop-out component (8) includes a spring seat (12), a compression spring (13), and a rubber sleeve (14). One end of the compression spring (13) is fixed on the spring seat (12). The rubber sleeve (14) has a semi-closed structure. The compression spring (13) and the spring seat (12) are both embedded in the rubber sleeve (14). The battery compartment (4) is provided with a mounting groove for installing the pop-out component (8). One end of the rubber sleeve (14) and the spring seat (12) are located in the mounting groove.

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