Battery pack mounting structure, electric device and method for removing battery pack

Patent metadata

Field	Value
Publication number	US-2026038948-A1
Application number	US-202519355883-A
Country	US
Kind code	A1
Filing date	Oct 10, 2025
Priority date	Apr 13, 2023
Publication date	Feb 5, 2026
Grant date	—

Abstract

A battery pack mounting structure includes a mounting body configured to support a battery pack; a compartment cover movably mounted on the mounting body and configured to cooperate with the mounting body to form an accommodation cavity for accommodating the battery pack, the compartment cover having a first position where the compartment cover cooperates with the mounting body to close the accommodation cavity, and a second position where the compartment cover is opened to allow access to the battery pack; and a locking mechanism configured to lock or unlock the battery pack. The compartment cover is connected to the locking mechanism in a linkage manner. When the compartment cover is in the first position, the locking mechanism locks the battery pack, and movement of the compartment cover from the first position to the second position triggers a position change of the locking mechanism to unlock the battery pack.

First claim

What is claimed is:

1 . A battery pack mounting structure comprising:
a mounting body configured to support a battery pack; a compartment cover movably mounted at the mounting body and configured to cooperate with the mounting body to form an accommodation cavity for accommodating the battery pack, the compartment cover including a first position where the compartment cover cooperates with the mounting body to close the accommodation cavity and a second position where the compartment cover is opened to allow access to the battery pack; and a locking mechanism configured to lock or unlock the battery pack, wherein movement of the compartment cover from the first position to the second position is configured to trigger a position change of the locking mechanism to unlock the battery pack.

2 . The battery pack mounting structure according to claim 1 , wherein:
the compartment cover is connected to the locking mechanism in a linkage manner, and when the compartment cover moves from the first position to the second position, a position of the locking mechanism is changed to unlock the battery pack.

3 . The battery pack mounting structure according to claim 2 , wherein:
when the compartment cover is in the first position, the locking mechanism locks the battery pack, and the locking mechanism comprises:
a main locking member including a locking position for locking the battery pack in the accommodation cavity and an unlocking position for releasing the battery pack in the accommodation cavity; and
a linkage assembly connected to the compartment cover and configured to act on the main locking member,
wherein when the compartment cover moves from the first position to the second position, the linkage assembly drives the main locking member to move from the locking position to the unlocking position.

4 . The battery pack mounting structure according to claim 3 , wherein:
the compartment cover is pivotally connected to the mounting body and configured to rotate around an axis of a pivot shaft to the first position and the second position respectively, and the linkage assembly comprises:
an actuating member connected to the compartment cover to rotate synchronously around the axis of the pivot shaft; and
a moving member abutting against the actuating member and configured to act on the main locking member,
wherein when the compartment cover rotates from the first position to the second position, the actuating member pushes against the moving member, and the moving member drives the main locking member to move from the locking position to the unlocking position.

5 . The battery pack mounting structure according to claim 4 , wherein:
the actuating member is a pawl or a cam, and the moving member is a push rod; or the actuating member is a gear, and the moving member is a rack.

6 . The battery pack mounting structure according to claim 4 , wherein:
the pivot shaft is connected to the compartment cover to rotate synchronously around an axis of the pivot shaft, and the actuating member is actively disposed at the pivot shaft.

7 . The battery pack mounting structure according to claim 4 , wherein:
the linkage assembly is provided with a guiding portion, the main locking member is connected to the moving member through the guiding portion, the guiding portion is configured to guide the main locking member to move along a preset path, the locking position and the unlocking position are both located on the preset path, the guiding portion comprises a first guiding inclined surface and a second guiding inclined surface abutting against each other, the first guiding inclined surface is disposed on the main locking member, and the second guiding inclined surface is disposed on the moving member.

8 . The battery pack mounting structure according to claim 3 , wherein:
the battery pack mounting structure further comprises a reset assembly configured to move the main locking member from the unlocking position to the locking position when the compartment cover changes from the second position to the first position; and the reset assembly comprises:
a base disposed on the mounting body, the main locking member being movably mounted in the base; and
a first elastic member including one end pushing against the base and another end pushing against the main locking member,
wherein when the compartment cover moves from the second position to the first position, the main locking member moves from the unlocking position to the locking position under action of the first elastic member.

9 . The battery pack mounting structure according to claim 1 , wherein:
the compartment cover comprises a grip portion for an operator to grip and open the compartment cover, and the battery pack mounting structure further comprises an unlocking member configured to trigger the locking mechanism to unlock the battery pack, wherein a distance between the unlocking member and the grip portion is configured to allow an operator to apply an external force to the unlocking member while opening the compartment cover with one hand, so as to achieve opening the compartment cover and unlocking the battery pack with one hand by the operator.

10 . An electric device comprising:
a battery pack mounting structure including:
a mounting body configured to support a battery pack;
a locking mechanism configured to lock the battery pack to maintain the battery pack at an installation position, or release the battery pack to allow the battery pack to detach from the installation position; and
an anti-detachment assembly configured to prevent the battery pack from detaching from the installation position when the electric device is turned from a horizontal state to a vertical state.

11 . The electric device according to claim 10 , wherein the anti-detachment assembly comprises:
an auxiliary locking member configured to switch between an unlocking position for releasing the battery pack and a locking position for locking the battery pack; and a retaining member configured to prevent the auxiliary locking member from displacing from the locking position of the auxiliary locking member to the unlocking position of the auxiliary locking member when the electric device is turned from the horizontal state to the vertical state.

12 . The electric device according to claim 11 , wherein:
when the electric device is in the vertical state, the retaining member is coupled to the auxiliary locking member to prevent the auxiliary locking member from displacing from the locking position of the auxiliary locking member to the unlocking position of the auxiliary locking member; and when the electric device is in the horizontal state, the retaining member is disengaged from the auxiliary locking member, and the auxiliary locking member is free to switch between the locking position of the auxiliary locking member and the unlocking position of the auxiliary locking member.

13 . The electric device according to claim 11 , wherein:
when the electric device is in the vertical state, the retaining member is coupled to the auxiliary locking member by gravity, and when the electric device is in the horizontal state, the retaining member is disengaged from the auxiliary locking member by gravity.

14 . The electric device according to claim 10 , wherein the battery pack mounting structure further comprises a compartment cover movably mounted on the mounting body and configured to cooperate with the mounting body to form an accommodation cavity for accommodating the battery pack, the compartment cover including a first position where the

Assignees

• Positec Power Tools Suzhou Co Ltd

Inventors

• Geng Lichao
• Zhang Yu

Classifications

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• A01D2101/00

  Lawn-mowers · CPC title

• A01D34/78

  electric · CPC title

• H01M50/271

  Lids or covers for the racks or secondary casings · CPC title

• H01M50/247 Primary

  specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers · CPC title