Handheld electric tool

Abstract

The utility model discloses a handheld electric tool which comprises a direct-current power source detachably connected to an operation shell. The direct-current power supply comprises a battery cell and a power supply shell for supporting the battery cell; the holding part is used for being held by an operator during operation; the power supply shell comprises a first shell, and the first shell is arranged on the holding part and forms the outer surface of the holding part; the ratio of the surface area of the first shell to the total surface area of the power supply shell is larger than or equal to 40%. The first shell of the direct-current power supply is used for holding, so that the size of the holding part is not increased or can be reduced while the discharge performance of the direct-current power supply is improved, and the use comfort of a user is improved.

Description

Technical Field

[0001] The present application relates to a power tool, and more particularly to a handheld power tool. Background Art

[0002] A handheld power tool in the related art is powered by a DC power supply, usually a battery pack. A battery receiving portion is formed in the holding portion of the power tool, and the battery receiving portion has only one opening for the battery pack to enter and exit.

[0003] For a cylindrical battery pack, the battery pack is inserted into the opening along the extension axis of the holding portion. After installation, the battery pack is located inside the holding portion, and the holding portion surrounds the battery pack.

[0004] For a rectangular battery pack, the battery pack is disposed outside the holding portion, and the sizes of the battery receiving portion and the battery pack are much larger than the size of the portion for the user to hold. When the user uses the machine, the user does not hold the battery pack.

[0005] With the increasing demand for high power and long battery life, the size of the battery pack is generally increased. For a battery pack with a voltage less than or equal to 12V, it is generally a cylindrical battery pack. Increasing the size of the battery pack means increasing the diameter of the battery pack. Correspondingly, the size of the battery receiving portion of the power tool for accommodating the battery also increases.

[0006] This section provides background information related to the present application, and these background information are not necessarily prior art. Summary of the Utility Model

[0007] An object of the present application is to solve or at least alleviate some or all of the above problems. To this end, an object of the present application is to provide a more compact and better ergonomic handheld power tool.

[0008] To achieve the above object, the present application adopts the following technical solutions:

[0009] A handheld power tool, comprising: a housing including a main housing and an operation housing, wherein the operation housing is formed or connected to the main housing, and the operation housing extends along a first straight line; an output portion at least partially located outside the main housing, the output portion being configured to output torque; a drive assembly at least partially disposed inside the main housing for driving the output portion; a DC power supply detachably connected to the operation housing; the DC power supply including a battery cell and a power supply housing for supporting the battery cell; a holding portion for an operator to grip during operation; the power supply housing including a first housing disposed on the holding portion and constituting an outer surface of the holding portion; the ratio of the surface area of the first housing to the total surface area of the power supply housing is greater than or equal to 40%.

[0010] In some embodiments, a first connection portion is provided on the operation housing, a second connection portion is provided on the power supply housing, and the second connection portion is locked with the first connection portion by circumferentially moving relative to the first connection portion.

[0011] In some embodiments, a first connection portion is provided on the operation housing, a second connection portion is provided on the power supply housing, and the second connection portion is locked with the first connection portion by moving in a direction perpendicular to the first straight line.

[0012] In some embodiments, a first connection portion is provided on the operation housing, a second connection portion is provided on the power supply housing, and the second connection portion is locked with the first connection portion by moving in the direction of the first straight line.

[0013] In some embodiments, the power supply housing further includes a second housing, and the second connection portion is provided on the second housing.

[0014] In some embodiments, the power supply housing further includes a decorative panel. When the second connection portion is locked with the first connection portion, the outer surface of the decorative panel is smoothly connected with the outer surface of the operation housing to form a single surface.

[0015] In some embodiments, a first texture is provided on the outer surface of the operation housing, a second texture is provided on the outer surface of the decorative panel, and when the second connection portion is locked with the first connection portion, the first texture is docked with the second texture.

[0016] In some embodiments, the voltage of the DC power supply is greater than or equal to 4V and less than or equal to 24V.

[0017] In some embodiments, the battery cell is columnar, and the axis of the battery cell extends substantially along the first straight line direction.

[0018] In some embodiments, along the direction perpendicular to the first straight line, the ratio of the maximum value of the diameter of the cross-section of the first housing to the maximum value of the diameter of the cross-section of the holding portion is greater than or equal to 0.8 and less than or equal to 1.

[0019] A hand-held power tool includes: a housing including a main housing and an operation housing, wherein the operation housing is formed or connected to the main housing, and the operation housing extends along a first straight line; an output portion at least partially located outside the main housing, the output portion being configured to output torque; a drive assembly at least partially disposed within the main housing for driving the output portion; a DC power supply held on the operation housing, the length direction of the DC power supply being parallel to the first straight line; the DC power supply including a battery cell and a power supply housing for supporting the battery cell; a holding portion for an operator to grip during operation, at least a part of the power supply housing being disposed in the holding portion and forming the outer surface of the holding portion; along the first straight line direction, the overlapping length of the battery cell and the operation housing is less than or equal to 0.8 times the length of the battery cell.

[0020] A hand-held power tool, comprising: a housing including a main housing and an operating housing, wherein the operating housing is formed or connected to the main housing, and the operating housing extends along a first straight line; an output portion at least partially located outside the main housing, the output portion being configured to output torque; a drive assembly at least partially disposed within the main housing for driving the output portion; a DC power supply including an electric core and a power supply housing supporting the electric core; the operating housing is provided with a receiving space for receiving the DC power supply, and the operating housing includes: a first opening for the DC power supply to enter the receiving space; a second opening located in the area of the receiving space; at least a part of the power supply housing is exposed through the second opening and constitutes the outer surface of the gripping portion.

[0021] In some embodiments, a trigger is provided on the operating housing, and the trigger and the second opening are located on the same side of the operating housing.

[0022] In some embodiments, a trigger is provided on the operating housing, and the trigger and the second opening are located on different sides of the operating housing.

[0023] In some embodiments, the trigger is located on the front side of the operating housing, and the second opening is located on the rear side, or the left side, or the right side of the operating housing.

[0024] In some embodiments, the first opening and the second opening face different directions.

[0025] In some embodiments, the first opening and the second opening are in communication.

[0026] In some embodiments, the second opening includes a plurality of hollow holes.

[0027] In some embodiments, the DC power supply is substantially cylindrical, and the cross-section of the DC power supply is triangular or approximately circular.

[0028] In some embodiments, the receiving space is configured to accommodate DC power supplies with at least two cross-sectional shapes.

[0029] A hand-held power tool, comprising: a housing including a main housing and an operating housing, wherein the operating housing is formed or connected to the main housing, and the operating housing extends along a first straight line; an output portion at least partially located outside the main housing, the output portion being configured to output torque; a drive assembly at least partially disposed within the main housing for driving the output portion; a DC power supply including an electric core and a power supply housing supporting the electric core; the operating housing is provided with a receiving space for receiving the DC power supply, and the operating housing includes: a first opening for the DC power supply to enter the receiving space; one end of the power supply housing is used to close the first opening; a second opening, such that a part of the side wall of the power supply housing is the gripping portion for the operator, and the ratio of the surface area of the power supply housing configured as the gripping portion for the operator to the total surface area of the side wall of the power supply housing is greater than or equal to 0.4 and less than or equal to 1.

[0030] The advantages of the present application are as follows: The DC power supply includes a battery cell and a power supply housing that supports the battery cell. The first housing of the power supply housing is disposed in the holding portion and forms the outer surface of the holding portion. The ratio of the surface area of the first housing to the total surface area of the power supply housing is greater than or equal to 40%. By holding the DC power supply with the first housing of the housing, while improving the discharge performance of the DC power supply, it is proposed to expose a part of the housing of the DC power supply as the user's holding portion, without increasing the size of the holding portion or reducing the size of the holding portion, thereby improving the user's comfort. At the same time, there is no need to provide a handle for accommodating the DC power supply, reducing the material used for the main housing, reducing the weight of the whole machine, and lowering the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a hand-held power tool provided by the present application;

[0032] Figure 2 is a front view of a hand-held power tool provided by the present application;

[0033] Figure 3 is Figure 2 a sectional view taken along line A-A of

[0034] Figure 4 is an exploded structural schematic diagram of a hand-held power tool provided by the present application;

[0035] Figure 5 is a bottom view of a hand-held power tool provided by the present application;

[0036] Figure 6 is a side view of a hand-held power tool provided by the present application;

[0037] Figure 7 is a schematic structural diagram of another hand-held power tool provided by the present application;

[0038] Figure 8 is a front view of another hand-held power tool provided by the present application;

[0039] Figure 9 is an exploded structural schematic of another hand-held power tool provided by the present application Figure 1 ;

[0040] Figure 10 is an exploded structural schematic of another hand-held power tool provided by the present application Figure 2 。 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] Before explaining any embodiments of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0042] In this application, the terms "comprise", "include", "have" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element.

[0043] In this application, the term "and / or" describes the associative relationship between associated objects and indicates that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this application, the character " / " generally indicates that the associated objects before and after are in an "and / or" relationship.

[0044] In this application, the terms "connect", "combine", "couple", "mount" may be direct connections, combinations, couplings or mounts, or may be indirect connections, combinations, couplings or mounts. For example, direct connection means that two parts or components are connected together without the need for an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0045] In this application, those of ordinary skill in the art will understand that relative terms used in conjunction with a quantity or condition (such as "about", "approximately", "substantially", etc.) are intended to include the stated value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances resulting from manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose a range defined by the absolute values of two endpoints. Relative terms may refer to a plus or minus a certain percentage (such as 1%, %, 1% or more) of the indicated value. Numerical values without the use of relative terms should also be disclosed as having tolerances. In addition, when expressing a relative angular positional relationship (such as substantially parallel, substantially perpendicular), "substantially" may refer to a plus or minus a certain number of degrees (such as 1 degree, degrees, 1 degree or more) based on the indicated angle.

[0046] In this application, those of ordinary skill in the art will understand that the functions performed by a component may be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part may also be performed by one part, one component, or a combination of multiple parts.

[0047] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", and "rear" are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that a component is connected "above" or "below" another component, it can not only be directly connected "above" or "below" another component, but also be indirectly connected "above" or "below" another component through an intermediate component. It should also be understood that the orientation terms such as the upper side, lower side, left side, right side, front side, and rear side not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0048] This application provides a handheld power tool, which can be an electric wrench, an electric drill, a hammer drill, an electric screwdriver, a circular saw, a sander, etc.

[0049] See Figures 1 to 3 , in this embodiment, the handheld power tool is an electric screwdriver 100, which includes a housing 10a, an output part 120, a drive assembly 130, a grip part 150, and a DC power supply 160. Among them, the housing 10a includes a main housing 110 and an operation housing 140. The operation housing 140 is formed or connected to the main housing 110, and the operation housing 140 extends along a first straight line 101. At least part of the output part 120 is located outside the main housing 110, and the output part 120 is used to output torque. At least part of the drive assembly 130 is arranged inside the main housing 110 and is used to drive the output part 120. The DC power supply 160 is detachably connected to the operation housing 140, and the DC power supply 160 includes a power supply housing 161 and an electric core 162. The grip part 150 is used for the operator to grip when operating.

[0050] Among them, the power supply housing 161 includes a first housing 1611, the first housing 1611 is arranged on the grip part 150 and constitutes the outer surface of the grip part 150, and the ratio of the surface area of the first housing 1611 to the total surface area of the power supply housing 161 is greater than or equal to 40%.

[0051] By gripping with the first housing 1611 of the DC power supply 160, while improving the discharge performance of the DC power supply 160, the size of the grip part 150 is not increased or can be reduced, improving the user's comfort. At the same time, there is no need to set a grip part for accommodating the DC power supply 160, reducing the material used for the main housing 110, reducing the weight of the whole machine, and reducing the cost.

[0052] Among them, the DC power supply 160 is generally a battery pack. To describe the technical solution of this application more clearly, an example is as follows: In the solution of the related art, the holding part surrounds the battery pack. The diameter of the holding part is 36 cm, and the diameter of the battery pack is 32 cm; according to the power requirement, when increasing the size of the battery pack, that is, increasing the diameter of the battery pack to 34 cm, according to the solution of the prior art, it is necessary to increase the diameter of the holding part, that is, the size of the holding part 150 needs to be set to at least 38 cm. However, when adopting the technical solution of this application, after the power supply housing 161 is connected to the operation housing 140, the first housing 1611 is exposed as a part of the holding part 150. By holding it with the first housing 1611 of the DC power supply 160, the diameter of the holding part 150 can be equal to 34 cm, without increasing the size of the holding part 150 or the size of the holding part 150 can be reduced, improving the user's comfort.

[0053] In some embodiments, the ratio of the surface area of the first housing 1611 to the total surface area of the power supply housing 161 is greater than or equal to 50%. In some embodiments, the ratio of the surface area of the first housing 1611 to the total surface area of the power supply housing 161 is equal to 40%, 50%, 60%, 70%, 80%, 90% or 100%. The power supply housing 161 can be completely exposed, or the operation housing 140 can form a semi-surrounding structure for the power supply housing 161.

[0054] A trigger 170 is provided on the operation housing 140. According to the operating habit, the holding part 150 starts from below the trigger 170, which is convenient for operating the trigger 170. According to the width of the palm, the extension length of the holding part 150 is 70 mm to 100 mm. Therefore, while the first housing 1611 constitutes the outer surface of the holding part 150, the outer surface of a part of the operation housing 140 is also used as the holding part 150. That is to say, both the operation housing 140 and the first housing 1611 are used as part of the holding part 150. In some embodiments, along the first straight line 101 direction, the distance from the center position of the trigger 170 to the upper edge of the first housing 1611 is less than the length of the first housing 1611 along the first straight line 101. That is to say, most of the holding part 150 is constituted by the first housing 1611. In some embodiments, along the direction perpendicular to the first straight line 101, the ratio of the maximum value of the diameter of the cross-section of the first housing 1611 to the maximum value of the diameter of the cross-section of the holding part 150 is greater than or equal to 0.8 and less than or equal to 1. In some embodiments, along the direction perpendicular to the first straight line 101, the ratio of the maximum value of the diameter of the cross-section of the first housing 1611 to the maximum value of the diameter of the cross-section of the holding part 150 is greater than or equal to 0.9 and less than or equal to 1. In some embodiments, along the direction perpendicular to the first straight line 101, the ratio of the maximum value of the diameter of the cross-section of the first housing 1611 to the maximum value of the diameter of the cross-section of the holding part 150 is equal to 1. For example Figure 2As shown, let L1 represent the maximum value of the diameter of the cross-section of the first housing 1611; let L2 represent the maximum value of the diameter of the cross-section of the holding portion 150.

[0055] In the DC power supply 160, the battery cell 162 can be columnar, and the axis of the battery cell 162 extends substantially along the direction of the first straight line 101. Usually, a plurality of battery cells 162 are arranged in the power supply housing 161. Setting the battery cells 162 in a columnar shape facilitates the arrangement of each battery cell 162 and makes full use of the space.

[0056] As Figure 3 shown, three battery cells 162 are arranged in the power supply housing 161. The three battery cells 162 are all cylindrical, and the axes of the three battery cells 162 are configured to be at the positions of the vertices of a triangle with respect to each other. It can also be considered that the axes of the three battery cells 162 are configured to be at the positions of the vertices of a T-shape with respect to each other. Among these three battery cells 162, one battery cell 162 is arranged at the front side, and two battery cells 162 are arranged side by side horizontally behind it. The three battery cells 162 are arranged in a state of being in contact with each other.

[0057] The trigger 170 is located at the front side of the operation housing 140. After the operator holds the holding portion 150, the end of the finger is located at the front side. The arrangement of the above three battery cells 162 makes the cross-sectional area of the front side of the power supply housing 161 smaller, which is convenient for holding.

[0058] In some embodiments, the DC power supply 160 is substantially columnar, which is convenient for holding. The cross-section of the DC power supply 160 is triangular or approximately circular. One or more battery cells 162 can be arranged in the power supply housing 161. The battery cells 162 in the same power supply housing 161 can have the same structure or different structures.

[0059] In this embodiment, the voltage of the DC power supply 160 is greater than or equal to 4V and less than or equal to 24V. In some embodiments, the voltage of the DC power supply 160 is greater than or equal to 10V and less than or equal to 18V. In some embodiments, the voltage of the DC power supply 160 is equal to 4V, 8V, 12V, 16V, 20V or 24V.

[0060] See Figure 4, a first connecting portion 141 is provided on the operation housing 140, and a second connecting portion 1612 is provided on the power supply housing 161. The second connecting portion 1612 is detachably connected to the first connecting portion 141. When the user holds the first housing 1611, part of the operation housing 140 can be held at the same time. In some embodiments, the second connecting portion 1612 can be locked with the first connecting portion 141 by circumferentially moving relative to the first connecting portion 141. During installation, align the second connecting portion 1612 with the first connecting portion 141, and lock the second connecting portion 1612 with the first connecting portion 141 by rotating the second connecting portion 1612. Specifically, it can be a threaded connection or a snap connection. In other embodiments, the second connecting portion 1612 can move in a direction parallel to the first straight line 101 to be inserted into the first connecting portion 141, and then be locked with the first connecting portion 141 by circumferentially moving the second connecting portion 1612 relative to the first connecting portion 141. During installation, align and insert the second connecting portion 1612 with the first connecting portion 141, and lock the second connecting portion 1612 with the first connecting portion 141 by rotating the second connecting portion 1612. Specifically, it can be a threaded connection or a snap connection.

[0061] In this embodiment, the second connecting portion 1612 can move in a direction perpendicular to the first straight line 101 to be locked with the first connecting portion 141. That is, the plugging and unplugging direction of the DC power supply 160 is perpendicular to the first straight line 101, and the second connecting portion 1612 and the first connecting portion 141 can be snap-connected. Specifically, a power supply interface is provided on the operation housing 140, and the first connecting portion 141 is provided in the power supply interface. When the second connecting portion 1612 is locked with the first connecting portion 141, the second connecting portion 1612 is inserted into the power supply interface. The power supply interface can be provided on the left or right side of the operation housing 140.

[0062] In some alternative embodiments, the second connecting portion 1612 moves in the direction of the first straight line 101 to be locked with the first connecting portion 141. That is, the plugging and unplugging direction of the DC power supply 160 is parallel to the first straight line 101, and the second connecting portion 1612 and the first connecting portion 141 can be snap-connected. Optionally, a power supply interface is provided on the operation housing 140, and the first connecting portion 141 is provided in the power supply interface. When the second connecting portion 1612 is locked with the first connecting portion 141, the second connecting portion 1612 is inserted into the power supply interface. The power supply interface extends in the direction of the first straight line 101.

[0063] The power supply housing 161 further includes a second housing 1613, and the second connecting portion 1612 is provided on the second housing 1613. Since the DC power supply 160 is plugged and unplugged in a direction perpendicular to the first straight line 101, the second housing 1613 can be exposed when the second connecting portion 1612 is locked with the first connecting portion 141.

[0064] The periphery of the second housing 1613 is the operation housing 140. To ensure integrity and aesthetics, the power supply housing 161 further includes a decorative panel 1614. When the second connection portion 1612 is locked with the first connection portion 141, the outer surface of the decorative panel 1614 is smoothly connected to the outer surface of the operation housing 140 to form a single surface. Among them, the decorative panel 1614 can be provided on the second housing 1613, or can be provided on both the second housing 1613 and the first housing 1611.

[0065] When the outer surface of the operation housing 140 is provided with patterns, since the installation of the DC power supply 160 interrupts the patterns, patterns can be provided on the outer surface of the decorative panel 1614, and the patterns of the two are butted to keep the patterns complete. It can be that the outer surface of the operation housing 140 is provided with a first pattern, and the outer surface of the decorative panel 1614 is provided with a second pattern. When the second connection portion 1612 is locked with the first connection portion 141, the first pattern is butted with the second pattern.

[0066] According to the connection method between the DC power supply 160 and the operation housing 140, after the DC power supply 160 is connected to the operation housing 140, the DC power supply 160 is held on the operation housing 140. In some embodiments, the length direction of the DC power supply 160 is parallel to the first straight line 101. Along the direction of the first straight line 101, there is a partial overlap between the DC power supply 160 and the operation housing 140. Along the direction of the first straight line 101, the ratio of the overlapping length between the battery cell 162 and the operation housing 140 to the length of the battery cell 162 is less than or equal to 0.8. In some embodiments, along the direction of the first straight line 101, the ratio of the overlapping length between the battery cell 162 and the operation housing 140 to the length of the battery cell 162 is less than or equal to 0.7, 0.6, 0.5, 0.4, 0.3. The smaller the overlapping length, the more the DC power supply 160 is exposed, without increasing the size of the holding portion 150 or the size of the holding portion 150 can be reduced, improving the user's comfort.

[0067] In some embodiments, the power supply housing 161 further includes a third housing 1615. The third housing 1615 is located at one end of the first housing 1611 away from the operation housing 140 and extends out of the holding portion 150. The third housing 1615 is detachably connected to the first housing 1611, facilitating the removal of the battery cell 162 inside the power supply housing 161. As Figure 5 shown, the third housing 1615 and the first housing 1611 can be connected by screws.

[0068] To ensure integrity and aesthetics, the outer surface of the first housing 1611 is smoothly connected to the outer surface of the operation housing 140. As Figure 6As shown, along the left - right direction of the operation housing 140, the width of the first housing 1611 near one end of the operation housing 140 is substantially the same as the width of the operation housing 140 near one end of the first housing 1611, so that the power supply housing 161 and the operation housing 140 are substantially integrated into one body.

[0069] See Figures 7 to 10 , which is another specific implementation manner of the embodiment of the present application. Taking the electric drill 100a as an example, the features and components of the electric drill 100a corresponding to the features and components of the electric screwdriver 100 are given the same reference numerals.

[0070] The electric drill 100a includes a housing 10a, an output part 120, a drive assembly 130, a grip part 150, and a DC power supply 160. Among them, the housing 10a includes a main housing 110 and an operation housing 140. At least part of the output part 120 is located outside the main housing 110, and the output part 120 is used to output torque. At least part of the drive assembly 130 is arranged inside the main housing 110 and is used to drive the output part 120. The operation housing 140 is formed or connected to the main housing 110, and the operation housing 140 extends along the first straight line 101. The operation housing 140 is provided with a receiving space for accommodating the DC power supply 160. The operation housing 140 includes a first opening 142 and a second opening 143. The first opening 142 is for the DC power supply 160 to enter the receiving space. The second opening 143 is located in the area of the receiving space, and at least part of the power supply housing 161 enters the second opening 143.

[0071] By providing the second opening 143, at least part of the power supply housing 161 enters the second opening 143, that is, at least part of the DC power supply 160 is exposed. While improving the discharge performance of the DC power supply 160, even if the size of the DC power supply 160 is increased, the size of the grip part 150 does not need to be increased, thus improving the user's comfort.

[0072] For the power supply housing 161 exposed from the second opening 143, at least part of the side wall is configured as the grip part of the operator. When gripping, the operator will grip the power supply housing 161 while gripping the operation housing 140. Through the setting of the second opening 143, the operation housing 140 does not completely cover the power supply housing 161. Since at least part of the power supply housing 161 is exposed and can be used as part of the grip part 150, even if the size of the DC power supply 160 is increased, the size of the grip part 150 does not need to be increased, thus improving the user's comfort.

[0073] Among them, the DC power supply 160 is generally a battery pack. To describe the technical solution of the present application more clearly, the following is an example: In the solution of the related art, the handle surrounds the battery pack, the diameter of the handle is 36 cm, and the diameter of the battery pack is 32 cm; according to the power requirement, when increasing the size of the battery pack, that is, increasing the diameter of the battery pack to 34 cm, according to the solution of the prior art, it is necessary to increase the diameter of the handle, that is, the size of the holding part 150 needs to be set to at least 38 cm. However, when adopting the technical solution of the present application, after the power supply housing 161 is connected to the operation housing 140, the power supply housing 161 at least partially enters the second opening 143, and the operation housing 140 and the power supply housing 161 are used for holding. The diameter of the holding part 150 is greater than 34 cm and less than 38 cm, without increasing the size of the holding part 150 or the size of the holding part 150 can be reduced, improving the user's comfort.

[0074] One, two or more second openings 143 can be provided, and each second opening 143 can be distributed on different sides of the operation housing 140. For example, one second opening 143 is provided on the front side of the operation housing 140, and another second opening 143 is provided on the rear side of the operation housing 140.

[0075] A trigger 170 is provided on the operation housing 140. According to the operating habit, the holding part 150 starts from below the trigger 170, which is convenient for operating the trigger 170. According to the width of the palm, the extension length of the holding part 150 is 70 mm to 100 mm. Usually, the trigger 170 is provided on the front side of the operation housing 140. In some embodiments, the trigger 170 and the second opening 143 are located on the same side of the operation housing 140. Taking the case where one second opening 143 is provided and both the trigger 170 and the second opening 143 are located on the front side of the operation housing 140 as an example, when the operator holds it, not only the power supply housing 161 exposed from the second opening 143 is held, but also the operation housing 140 located behind the second opening 143 is held. Specifically, the palm holds the operation housing 140, and the fingers hold the power supply housing 161.

[0076] In some other embodiments, the trigger 170 and the second opening 143 are located on different sides of the operation housing 140. When the trigger 170 is located on the front side of the operation housing 140, the second opening 143 is located on the rear side, left side or right side of the operation housing 140; when the trigger 170 is located on the left side of the operation housing 140, the second opening 143 is located on the front side, rear side or right side of the operation housing 140.

[0077] The second opening 143 can be a continuous larger opening or multiple spaced smaller openings. In some embodiments, the second opening 143 includes a plurality of hollow holes to ensure the structural strength of the operation housing 140.

[0078] The first opening 142 is for the DC power supply 160 to be inserted into the accommodation space. Usually, the first opening 142 can be arranged at the lower end of the operation housing 140, that is, the end of the operation housing 140 away from the main housing 110, and the DC power supply 160 is inserted into the operation housing 140 along the direction of the first straight line 101. In some embodiments, the first opening 142 can also be arranged on the side surface of the operation housing 140.

[0079] In some embodiments, the first opening 142 and the second opening 143 face different directions, which can not only ensure the structural strength of the operation housing 140, but also facilitate the power supply housing 161 to be exposed from the second opening 143. For example, the first opening 142 is located on the lower side of the operation housing 140, and the second opening 143 is located on the front side of the operation housing 140. The first opening 142 is located on the rear side of the operation housing 140, and the second opening 143 is located on the front side of the operation housing 140.

[0080] In some embodiments, the first opening 142 and the second opening 143 are communicated, which is convenient for processing and production. When inserting the DC power supply 160 into the first opening 142, the partial space of the second opening 143 can be utilized, so that the DC power supply 160 can be inserted and removed conveniently. When the DC power supply 160 is exposed from the second opening 143, a part of the power supply housing 161 is exposed from the first opening 142, so that a larger part of the DC power supply 160 is exposed.

[0081] In some embodiments, the DC power supply 160 is basically cylindrical, which is convenient for holding, and the cross-section of the DC power supply 160 is triangular or approximately circular. One or more DC power supplies 160 can be arranged in the accommodation space of the operation housing 140, and each DC power supply 160 can have the same structure or different structures. In some embodiments, the accommodation space is configured to adapt to DC power supplies 160 with at least two cross-sectional shapes. For example, three DC power supplies 160 with different cross-sectional shapes are arranged in the accommodation space, the cross-section of one DC power supply 160 is triangular, the cross-section of another DC power supply 160 is circular, and the cross-section of another DC power supply 160 is square.

[0082] After the DC power supply 160 is inserted into the operation housing 140 from the first opening 142, the power supply housing 161 is locked with the operation housing 140 to prevent the DC power supply 160 from falling off from the first opening 142. It can be that one of the power supply housing 161 and the operation housing 140 is provided with an elastic buckle 163, and the other is provided with a card slot. After the DC power supply 160 is inserted into the operation housing 140 from the first opening 142, the elastic buckle 163 is clamped with the card slot.

[0083] In this embodiment, the DC power supply 160 can move along the direction of the first straight line 101 and be inserted into the operation housing 140, that is, the insertion and removal direction of the DC power supply 160 is parallel to the direction of the first straight line 101.

[0084] In some embodiments, one end of the power supply housing 161 is used to close the first opening 142. After the DC power supply 160 is inserted into the operation housing 140 from the first opening 142, one end of the power supply housing 161 closes the first opening 142, ensuring integrity and aesthetics. Specifically, an extension portion 164 is provided on the power supply housing 161. After the DC power supply 160 is inserted into the operation housing 140 from the first opening 142, the extension portion 164 covers the edge of the first opening 142, so that the first opening 142 is closed.

[0085] In some embodiments, the second opening 143 configures a part of the side wall of the power supply housing 161 as the operator's gripping portion 150. The ratio of the opening area of the second opening 143 to the surface area of the side wall of the power supply housing 161 is greater than or equal to 0.4 and less than or equal to 1. In some embodiments, the ratio of the opening area of the second opening 143 to the surface area of the side wall of the power supply housing 161 is greater than or equal to 0.6 and less than or equal to 0.8. In some embodiments, the ratio of the opening area of the second opening 143 to the surface area of the side wall of the power supply housing 161 is equal to 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, or 1.

[0086] See Figure 9 , the first opening 142 is provided at the lower end of the operation housing 140, the second opening 143 is provided at the front side of the operation housing 140, and a partition portion 144 is formed between the first opening 142 and the second opening 143. The partition portion 144 separates the first opening 142 from the second opening 143 and does not connect them. The partition portion 144 positions the DC power supply 160. When gripping, the gripping portion 150 is located above the partition portion 144. Therefore, the diameter of the position where the partition portion 144 is located can be set larger without affecting the size of the gripping portion 150.

[0087] The foregoing shows and describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form. Any technical solutions obtained by using equivalent replacements or equivalent transformations fall within the protection scope of the present application.

Claims

1. A handheld electric tool, characterized in that: include: A housing, comprising a main housing and an operating housing, wherein the operating housing is formed on or connected to the main housing, and the operating housing extends along a first straight line; an output portion, at least partially located outside the main housing, the output portion being used to output torque; a drive assembly, at least partially disposed within the main housing, for driving the output portion; A gripping portion, used for the operator to grip during operation; A DC power supply, detachably connected to the operating housing; the DC power supply comprises a battery cell and a power supply housing supporting the battery cell; The power supply housing includes a first shell, which is arranged on the grip portion and constitutes the outer surface of the grip portion; the ratio of the surface area of ​​the first shell to the total surface area of ​​the power supply housing is greater than or equal to 40%.

2. The handheld power tool according to claim 1, characterized in that: The operation housing is provided with a first connection part, and the power supply housing is provided with a second connection part, and the second connection part is locked with the first connection part by circumferential movement relative to the first connection part.

3. The handheld power tool according to claim 1, characterized in that: The operating housing is provided with a first connecting portion, and the power supply housing is provided with a second connecting portion, and the second connecting portion moves in a direction perpendicular to the first straight line and is locked with the first connecting portion.

4. The handheld power tool according to claim 1, characterized in that: The operating housing is provided with a first connecting portion, and the power supply housing is provided with a second connecting portion, and the second connecting portion moves along the direction of the first straight line and is locked with the first connecting portion.

5. The handheld electric tool according to any one of claims 2 to 4, characterized in that: The power supply housing further includes a second shell, and the second connecting portion is disposed on the second shell.

6. The handheld electric tool according to any one of claims 2 to 4, characterized in that: The power supply housing further comprises a decorative panel, and when the second connection portion is locked with the first connection portion, an outer surface of the decorative panel and an outer surface of the operating housing are smoothly connected to form one surface.

7. The handheld power tool according to claim 6, characterized in that: The outer surface of the operating shell is provided with a first texture, and the outer surface of the decorative panel is provided with a second texture. When the second connecting portion is locked with the first connecting portion, the first texture is butted against the second texture.

8. The handheld power tool according to claim 1, characterized in that: The voltage of the DC power supply is greater than or equal to 4V and less than or equal to 24V.

9. The handheld power tool according to claim 1, characterized in that: The battery core is columnar, and the axis of the battery core substantially extends along the first straight line direction.

10. The handheld power tool according to claim 1, characterized in that: Along a direction perpendicular to the first straight line, a ratio of a maximum value of a diameter of a cross section of the first shell to a maximum value of a diameter of a cross section of the gripping portion is greater than or equal to 0.8 and less than or equal to 1.

11. A handheld electric tool, characterized in that: include: A housing, comprising a main housing and an operating housing, wherein the operating housing is formed on or connected to the main housing, and the operating housing extends along a first straight line; an output portion, at least partially located outside the main housing, the output portion being used to output torque; a drive assembly, at least partially disposed within the main housing, for driving the output portion; A gripping portion, used for the operator to grip during operation; A DC power supply is held on the operating housing, and a length direction of the DC power supply is parallel to the first straight line; the DC power supply includes a battery cell and a power supply housing supporting the battery cell; The power supply housing is at least partially disposed on the grip portion and constitutes an outer surface of the grip portion; along the first straight line direction, a ratio of an overlapping length between the battery cell and the operating housing to a length of the battery cell is less than or equal to 0.

8.

12. A handheld electric tool, characterized in that: include: A housing, comprising a main housing and an operating housing, wherein the operating housing is formed on or connected to the main housing, and the operating housing extends along a first straight line; an output portion, at least partially located outside the main housing, the output portion being used to output torque; a drive assembly, at least partially disposed within the main housing, for driving the output portion; A direct current power supply, comprising a battery cell and a power supply housing supporting the battery cell; A gripping portion, used for the operator to grip during operation; The operating housing is provided with a storage space for storing the DC power supply, and the operating housing comprises: A first opening, for the DC power supply to enter the accommodation space; The second opening is located in the area of ​​the accommodating space; the power supply housing is at least partially exposed through the second opening and constitutes the outer surface of the gripping portion.

13. The handheld electric tool according to claim 12, characterized in that: The operating housing is provided with a trigger, and the trigger and the second opening are located on the same side of the operating housing.

14. The handheld power tool according to claim 12, characterized in that: The operating housing is provided with a trigger, and the trigger and the second opening are located on different sides of the operating housing.

15. The handheld power tool according to claim 14, characterized in that: The trigger is located at the front side of the operating housing, and the second opening is located at the rear side or the left side or the right side of the operating housing.

16. The handheld power tool according to claim 12, characterized in that: The first opening and the second opening are oriented in different directions.

17. The handheld power tool according to claim 12, characterized in that: The first opening is in communication with the second opening.

18. The handheld power tool according to claim 12, characterized in that: The second opening includes a plurality of hollow holes.

19. The handheld power tool according to claim 12, characterized in that: The DC power supply is substantially columnar, and a cross section of the DC power supply is triangular or approximately circular.

20. The handheld power tool according to claim 19, characterized in that: The accommodation space is configured to accommodate the DC power supply with at least two cross-sectional shapes.

21. A handheld electric tool, characterized in that: include: A housing, comprising a main housing and an operating housing, wherein the operating housing is formed on or connected to the main housing, and the operating housing extends along a first straight line; an output portion, at least partially located outside the main housing, the output portion being used to output torque; a drive assembly, at least partially disposed within the main housing, for driving the output portion; A direct current power supply, comprising a battery cell and a power supply housing supporting the battery cell; The operating housing is provided with a storage space for storing the DC power supply, and the operating housing comprises: A first opening is used for the DC power supply to enter the accommodation space; one end of the power supply housing is used to close the first opening; The second opening makes part of the side wall of the power supply housing constitute the operator's gripping part, and the power supply housing is configured so that the ratio of the surface area of ​​the operator's gripping part to the total surface area of ​​the side wall of the power supply housing is greater than or equal to 0.4 and less than or equal to 1.

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