Power supply assembly and electric tool

Abstract

The utility model provides a power supply assembly configured to supply power to an electric tool and a household electrical appliance, the electric tool comprises a tool host, the household electrical appliance comprises a base, the power supply assembly comprises a battery pack and a connecting element, the connecting element comprises a first locking part and a first mounting part, the first mounting part is detachably mounted on the battery pack, and the first locking part is detachably mounted on the base. The first locking part is detachably mounted on the tool host; the battery pack comprises a second locking part, and the second locking part is detachably locked on the machine base; when the connecting element is combined with the battery pack, the power supply assembly is configured to be detachably mounted on the tool host and supplies power to the electric tool; and when the connecting element is separated from the battery pack, the battery pack is configured to be detachably mounted on the base to supply power to the household appliance.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a power supply assembly and an electric tool. Background Art

[0002] In the field of power tools, lithium battery-powered tools are becoming more and more popular. Lithium batteries have the advantages of high energy density, light weight, and long life. More importantly, the power supply interface of lithium-powered tools is unified (i.e., the battery pack is platformized), so that the same battery pack can power dozens or even hundreds of tools, such as electric screwdrivers, electric drills, electric hammers, angle grinders, sanders, jigsaws, reciprocating saws, electric circular saws, chain saws, pruning machines, etc.

[0003] On the other hand, in the field of household appliances, especially small household appliances, most of them are powered by AC power. The power supply cables will interfere with the user's operation, and the use of AC power is not very safe. In response to this, household appliances with built-in lithium batteries have appeared on the market. However, each machine needs to be equipped with a lithium battery, which will inevitably increase the cost. Utility Model Content

[0004] The present application provides a power supply assembly and an electric tool, wherein the power supply assembly can be applicable to electric tools and household appliances.

[0005] On the one hand, the present application provides a power supply assembly configured to supply power to an electric tool and a household appliance, wherein the electric tool includes a tool main body, the household appliance includes a machine base, the power supply assembly includes a battery pack and a connecting element, the connecting element includes a first locking portion and a first mounting portion, the first mounting portion is detachably mounted on the battery pack, and the first locking portion is detachably mounted on the tool main body; the battery pack includes a second locking portion, and the second locking portion is detachably locked to the machine base; when the connecting element is combined with the battery pack, the power supply assembly is configured to be detachably mounted on the tool main body to supply power to the electric tool; when the connecting element is detached from the battery pack, the battery pack is configured to be detachably mounted on the machine base to supply power to the household appliance.

[0006] Furthermore, the battery pack includes a base, a battery cell shell, and a battery cell accommodated between the base and the battery cell shell, the connecting element is sleeved on the battery pack, and the first mounting portion is assembled with the base.

[0007] Furthermore, the first mounting portion and the first locking portion extend in opposite directions.

[0008] Further, the first mounting portion is an elastic arm, and / or the first locking portion is an elastic arm.

[0009] Furthermore, the connecting element further includes a main body and an unlocking portion connected to the main body, wherein the unlocking portion connects the first locking portion and the first mounting portion and is configured to release the locking state of the first locking portion and the first mounting portion.

[0010] Furthermore, the unlocking portion has rotational freedom, and the rotation axis is perpendicular to the extension direction of the first mounting portion and the first locking portion.

[0011] Furthermore, when the battery pack is assembled on the base, the battery pack is completely accommodated in the base.

[0012] On the other hand, the present application further provides an electric tool, which includes a tool main body and a power supply assembly as described above, wherein the power supply assembly is detachably mounted on the tool main body.

[0013] Furthermore, the tool host includes a shell, the power supply component is partially received in a receiving cavity formed by the shell, and the first locking portion is locked to the shell.

[0014] Furthermore, the base and the unlocking portion are exposed outside the shell.

[0015] The power supply assembly of the present application can be adapted to a variety of power tools, and the battery pack can be adapted to a variety of household appliances, further improving versatility and helping to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the power supply component of the present application.

[0017] Figure 2 yes Figure 1 The cross-sectional view of the power supply assembly is shown, and the section line is perpendicular to the unlocking portion.

[0018] Figure 3 It is a three-dimensional schematic diagram of an embodiment of the household appliance of the present application.

[0019] Figure 4 yes Figure 3 A cross-sectional view of a household appliance is shown.

[0020] Figure 5 It is a three-dimensional schematic diagram of an embodiment of the electric tool of the present application. DETAILED DESCRIPTION

[0021] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.

[0022] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantity restrictions, but indicate that there is at least one. "Multiple" or "several" means two and more than two. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper" are only for convenience of explanation and are not limited to one position or one spatial orientation. Similar words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] The present application provides a power supply assembly that can supply power to electric tools and household appliances. The electric tools are, for example, electric drills, angle grinders, electric hammers, reciprocating saws, electric chain saws, pruning machines, lawn mowers, etc., which include a tool host, which includes a housing, a motor housed in the housing, an output shaft, and a transmission mechanism for transmitting the motor power to the output shaft (some electric tools are direct-drive structures and do not have a transmission mechanism); the household appliances are, for example, food processors (juicers, blenders, egg beaters, cooking sticks, etc.), vacuum cleaners, etc., which include a machine base, which includes a housing and a motor housed in the housing. When the household appliance is a food processor, the household appliance also includes a cup body and a whipping structure (such as a stirring knife) located in the cup body.

[0024] Please combine Figure 1 to Figure 2 The power supply assembly 100 includes a battery pack 10 and a connecting element 20. The battery pack 10 can be directly combined with the base and completely accommodated in the base (refer to Figure 4 ), and then power the household appliances. When the battery pack 10 is combined with the connecting element 20, the whole can be combined with the host to power the power tool. At this time, the power supply component is partially stored in the host (refer to Figure 5 ).

[0025] Specifically, the battery pack 10 includes a base 11, a cell shell 12, and cells 13 contained between the base and the cell shell. The number of cells 13 may be one or more. Of course, a power management system may also be integrated in the base.

[0026] The connecting element 20 is mounted on the battery pack 10, and includes a first locking portion 21 and a first mounting portion 22. The first mounting portion 22 is detachably mounted on the base 11 of the battery pack 10, and the first locking portion 21 is detachably mounted on the tool host. The battery pack 10 also includes a second locking portion 14, which is detachably locked to the base. Optionally, the first mounting portion 22 and the first locking portion 21 extend in opposite directions. Furthermore, the first mounting portion 22 and the first locking portion 21 are both elastic arms.

[0027] The connecting element 20 further includes a main body 23 and an unlocking portion 24 connected to the main body, wherein the unlocking portion 24 connects the first locking portion 21 and the first mounting portion 22 and is configured to release the locking state of the first locking portion and the first mounting portion. Preferably, the unlocking portion 24 has a rotational degree of freedom, and the rotation axis is perpendicular to the extension direction of the first mounting portion 22 and the first locking portion 21.

[0028] Please combine Figure 3 and Figure 4 The battery pack 20 is contained in the base 30 of the household appliance. The household appliance further comprises a cooking cup 40 and an accessory 50 disposed in the cooking cup. The accessory 50 is driven by a motor 35 of the base 30. The host 30 comprises a third locking portion 31 and a release portion 32. The third locking portion 31 is used to cooperate with the second locking portion to lock the battery pack 20, and the release portion 32 is used to unlock the battery pack. The release portion may be provided with a reset spring 33 and an ejection spring 34 for ejecting the battery pack, so that the user can conveniently take the unlocked battery pack 20.

[0029] Please combine Figure 5 The present application also provides an electric tool, which includes a main body 200 and a power supply assembly 100 of any of the aforementioned embodiments, wherein the power supply assembly 100 is detachably mounted on the tool main body 200 , and the tool main body 200 is provided with a fourth locking portion that cooperates with the first locking portion 21 .

[0030] The tool host 200 includes a housing 201, the fourth locking portion is a recess formed in the housing, the power supply assembly 100 is partially received in the receiving cavity formed by the housing 201, and the first locking portion 21 is locked with the fourth locking portion of the housing. The battery pack base 21 and the unlocking portion 24 are exposed outside the housing 201, which is beneficial to the heat dissipation of the battery pack and also allows the user to perform the unlocking operation.

[0031] The power supply assembly of the present application can be adapted to a variety of power tools, and the battery pack can be adapted to a variety of household appliances, further improving versatility and helping to reduce costs.

[0032] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred embodiment as above, it is not intended to limit the present application. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still falls within the scope of the technical solution of the present application.

Claims

1. A power supply assembly configured to supply power to an electric tool and a household appliance, wherein the electric tool comprises a tool main body and the household appliance comprises a machine base, characterized in that: The power supply assembly includes a battery pack and a connecting element, the connecting element includes a first locking portion and a first mounting portion, the first mounting portion is detachably mounted on the battery pack, and the first locking portion is detachably mounted on the tool host; the battery pack includes a second locking portion, and the second locking portion is detachably locked to the base; When the connecting element is combined with the battery pack, the power supply assembly is configured to be detachably mounted on the tool host to power the power tool; when the connecting element is detached from the battery pack, the battery pack is configured to be detachably mounted on the base to power the household appliance.

2. The power supply assembly according to claim 1, characterized in that: The battery pack includes a base, a battery cell shell, and a battery cell accommodated between the base and the battery cell shell. The connecting element is sleeved on the battery pack, and the first mounting portion is assembled with the base.

3. The power supply assembly according to claim 2, characterized in that: The first mounting portion and the first locking portion extend in opposite directions.

4. The power supply assembly according to claim 3, characterized in that: The first mounting portion is an elastic arm, and / or the first locking portion is an elastic arm.

5. The power supply assembly according to claim 3, characterized in that: The connecting element further comprises a main body and an unlocking portion connected to the main body, wherein the unlocking portion connects the first locking portion and the first mounting portion and is configured to release a locking state of the first locking portion and the first mounting portion.

6. The power supply assembly according to claim 5, characterized in that: The unlocking portion has a rotational degree of freedom, and a rotation axis is perpendicular to an extension direction of the first mounting portion and the first locking portion.

7. The power supply assembly according to claim 2, characterized in that: When the battery pack is assembled on the base, the battery pack is completely contained in the base.

8. An electric tool, characterized in that: The electric tool comprises a tool main body and a power supply assembly as claimed in any one of claims 2 to 7, wherein the power supply assembly is detachably mounted on the tool main body.

9. The electric tool according to claim 8, characterized in that: The tool host comprises a shell, the power supply assembly is partially received in a receiving cavity formed by the shell, and the first locking portion is locked to the shell.

10. The electric tool according to claim 9, characterized in that: The base and the unlocking portion are exposed outside the shell.

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