Power tool

Abstract

The application discloses an electric tool, which comprises a motor for driving an accessory, a housing for accommodating at least part of the motor and surrounding a handle for a user to hold, a battery compartment surrounding a receiving space for accommodating a battery pack, the battery pack being pluggably installed in the receiving space, and a pop-up device comprising a base, a biasing element and a pop-up piece, wherein the pop-up piece provides a pop-up force to the battery pack under the action of the biasing element, and the pop-up device is assembled and fixed at the bottom of the battery compartment in the direction of the pop-up force from the outside of the battery compartment. The application facilitates the taking out of the battery pack from the battery compartment, thereby reducing the difficulty of replacing the battery pack.

Description

Technical Field

[0001] This application relates to a power tool, specifically an electric tool. Background Technology

[0002] Power tools play a vital role in daily production and life. Power tools include, but are not limited to, electric drills, impact drills, impact wrenches, impact screwdrivers, and angle grinders. Electric drills and impact drills can be equipped with drill bits of different diameters to drill holes in objects; impact wrenches are used to tighten bolts and nuts; impact screwdrivers are typically used to loosen or tighten screws; angle grinders can be used for grinding and cutting objects; and chainsaws and circular saws are used for woodworking. Using power tools can improve work efficiency and reduce labor intensity.

[0003] Power tools typically use battery packs as their power source for portability and ease of use. To effectively protect the battery pack, power tools are usually designed with a four-sided sealed battery compartment where the battery pack is housed. However, when using large-capacity battery packs, their weight makes them difficult to remove from the compartment, increasing the difficulty of battery pack replacement.

[0004] This section provides background information related to this application, which is not necessarily prior art. Utility Model Content

[0005] One objective of this application is to solve or at least alleviate some or all of the aforementioned problems, making it easier to remove the battery pack from the battery compartment, thereby reducing the difficulty of replacing the battery pack.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An electric tool includes: a motor for driving accessories; a housing housing at least a portion of the motor and surrounding a handle for a user to grip; a battery compartment surrounding a receiving space for accommodating a battery pack, the battery pack being pluggably mounted within the receiving space; and further includes: an ejector mechanism including a base, a biasing element, and an ejector; wherein the ejector provides an ejection force to the battery pack under the action of the biasing element; and the ejector mechanism is assembled from outside the battery compartment along the direction of the ejection force and secured to the bottom of the battery compartment.

[0008] In some embodiments, a fastener is also included to lock the base to the bottom of the battery compartment from the outside.

[0009] In some embodiments, a mounting groove is provided on the base, a pop-out member is slidably disposed in the mounting groove, and a biasing element is located in the mounting groove and abuts against the pop-out member.

[0010] In some embodiments, a positioning post is provided in the mounting groove, the positioning post extends in the same direction as the mounting groove, and a biasing element is sleeved on the positioning post.

[0011] In some embodiments, a limiting structure is also included to prevent the ejector from dislodging from the mounting slot.

[0012] In some embodiments, the limiting structure includes a pressure plate mounted from the top of the battery compartment to the bottom of the battery compartment away from the base, and the pop-out member can extend or retract relative to the pressure plate.

[0013] In some embodiments, the battery compartment is provided with a first through hole and a second through hole.

[0014] In some embodiments, the first through-hole is arranged in the middle region of the bottom of the battery compartment.

[0015] In some embodiments, the second through-hole is located on the bottom of the battery compartment on the side away from the accessory.

[0016] In some embodiments, power tools are cutting tools.

[0017] The advantages of this application are:

[0018] This application provides a power tool with a battery compartment forming a receiving space for accommodating a battery pack. The battery pack is pluggably installed within the receiving space. A pop-out device is assembled from the outside of the battery compartment along the direction of the popping force and fixed to the bottom of the battery compartment. The pop-out device includes a base, a biasing element, and a pop-out component. The pop-out component provides a popping force to the battery pack under the action of the biasing element. When the power tool is in operation, the battery pack is installed in the battery compartment, providing power to the motor. At this time, the biasing element is in a compressed and energy-storing state. When it is necessary to remove the battery pack, the biasing element drives the pop-out component to provide a popping force to the battery pack, thereby causing the battery pack to pop out of the battery compartment, making it easier for the user to remove the battery pack and reducing the difficulty of replacing the battery pack. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one embodiment of this application;

[0020] Figure 2 This is an exploded view of the pop-up device in one embodiment of this application;

[0021] Figure 3 This is a front view of one embodiment of this application;

[0022] Figure 4 yes Figure 3 View from AA direction;

[0023] Figure 5 This is a schematic diagram of removing the battery pack in one embodiment of this application;

[0024] Figure 6 This is another schematic diagram of removing the battery pack in one embodiment of this application;

[0025] Figure 7 This is a top view of removing the battery pack in one embodiment of this application.

[0026] In the picture:

[0027] 100. Power tool; 110. Accessory; 1. Motor; 2. Housing; 21. Handle; 3. Battery compartment; 31. Reception space; 32. First through hole; 33. Second through hole; 4. Pop-out device; 41. Base; 411. Positioning post; 412. First connecting hole; 42. Offset element; 43. Pop-out part; 431. Limiting protrusion; 5. Fastener; 6. Limiting structure; 61. Pressure plate; 7. Battery pack. Detailed Implementation

[0028] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0029] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0030] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0031] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0032] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​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 associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0033] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0034] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0035] Power tools play a vital role in daily production and life. Power tools include, but are not limited to, electric drills, impact drills, impact wrenches, impact screwdrivers, angle grinders, chainsaws, and circular saws. Electric drills and impact drills can be configured with drill bits of different diameters to drill holes in objects; impact wrenches are used to tighten bolts and nuts; impact screwdrivers are typically used to loosen or tighten screws; angle grinders can be used for grinding and cutting; and chainsaws and circular saws are used for woodworking. Using power tools can improve work efficiency and reduce labor intensity.

[0036] like Figure 1As shown, the power tool 100 uses a rechargeable battery pack as its power source. In this embodiment, the battery pack is a battery pack 7, which, in conjunction with a corresponding power circuit, supplies power to the power tool 100. Those skilled in the art will understand that in other embodiments, the power tool 100 can also be powered by other power supply devices. For example, the power supply can be an AC power line connected to the mains, or it can be other connecting cables that can be connected to a power supply device. The mains power or other power supply devices, in conjunction with corresponding rectification, filtering, and voltage regulation circuits, supply power to the corresponding components of the power tool 100. The term "battery pack 7" will be used hereinafter to refer to the power source, but this should not be construed as a limitation of this application.

[0037] To ensure that the battery pack 7 provides sufficient power to the motor 1 of the power tool 100 for an extended period of time, thus guaranteeing long-term operation of the power tool 100 after a single charge, a large-capacity battery pack 7 is typically used. However, the large-capacity battery pack 7 is relatively heavy, and once installed in the four-sided sealed battery compartment 3, it cannot be easily removed from the battery compartment 3, increasing the difficulty of replacing the battery pack 7.

[0038] To address the aforementioned issues and facilitate the removal of battery pack 7 from battery compartment 3, thereby reducing the difficulty of replacing battery pack 7, as follows: Figures 1-7 As shown, this application provides a power tool 100. The power tool 100 includes a motor 1, a housing 2, a battery compartment 3, and a pop-out device 4.

[0039] The motor 1 drives the accessory 110. The housing 2 houses at least a portion of the motor 1 and forms a handle 21 for the user to grip. The battery compartment 3 forms a receiving space 31 for accommodating a battery pack 7, which is pluggably mounted within the receiving space 31. The ejection device 4 includes a base 41, a biasing element 42, and an ejector 43. The ejector 43 provides an ejection force to the battery pack 7 under the action of the biasing element 42. The ejection device 4 is assembled from outside the battery compartment 3 along the direction of the ejection force and fixed to the bottom of the battery compartment 3.

[0040] When the power tool 100 is in operation, the battery pack 7 is installed in the battery compartment 3 to provide power to the motor 1. At this time, the biasing element 42 is in a compressed and stored state. When it is necessary to remove the battery pack 7, the biasing element 42 drives the ejector 43 to provide an ejection force to the battery pack 7, thereby causing the battery pack 7 to pop out of the battery compartment 3. This makes it easier for the user to remove the battery pack 7 from the battery compartment 3, thus reducing the difficulty of replacing the battery pack 7.

[0041] In some embodiments, a locking element (not shown in the figure) is provided in the battery compartment 3. The locking element has a locked position and an unlocked position. When the battery pack 7 is installed in the battery compartment 3, the locking element is switched to the locked position, and the locking element locks the battery pack 7 in the battery compartment 3, ensuring that the position of the battery pack 7 relative to the battery compartment 3 is stable, thereby enabling stable connection with the power connector and achieving a stable power supply. Moreover, when the locking element is in the locked position, the elastic force provided by the bias element 42 reduces the shaking of the battery pack 7 in its installation position, reduces the relative friction between the battery pack 7 and the inner wall of the battery compartment 3, thereby reducing the wear of the battery compartment 3 and extending the service life of the battery compartment 3. At this time, the bias element 42 is in a compressed energy storage state. When it is necessary to remove the battery pack 7, the locking member is switched from the locked position to the unlocked position. At this time, the locking member releases the lock on the battery pack 7. Under the action of its own elastic restoring force, the biasing element 42 pushes the pop-out member 43 to move, thereby providing a pop-out force to the battery pack 7, and thus popping the battery pack 7 up, so that the end of the battery pack 7 away from the bottom of the battery compartment 3 extends relative to the battery compartment 3, making it convenient for the user to remove the battery pack 7 from the battery compartment 3.

[0042] like Figure 2 As shown, in some embodiments, the power tool 100 further includes a fastener 5, which locks the base 41 to the bottom of the battery compartment 3 from the outside. By fixing the base 41 to the bottom of the battery compartment 3 with the fastener 5, a stable connection between the base 41 and the battery compartment 3 can be ensured. Exemplarily, the fastener 5 is a screw, with a first connecting hole 412 on the base 41 and a second connecting hole opposite to the first connecting hole 412 on the bottom of the battery compartment 3. The screw passes through the first connecting hole 412 and connects to the second connecting hole, wherein the second connecting hole is a threaded hole. With the above arrangement, it is convenient to install the base 41 at the bottom of the battery compartment 3. In order to prevent the base plate from separating from the battery compartment 3 due to the elastic force of the biasing element 42 when the biasing element 42 is compressed, optionally, a second connecting hole is provided at each of the four corners of the battery compartment 3 along the circumference of the battery compartment 3. Similarly, four first connecting holes 412 are also provided on the base plate. The base plate is secured to the bottom of the battery compartment 3 using four screws, ensuring the stability of the connection between the base plate and the battery compartment 3. In other embodiments, the number of the first connection hole 412 and the second connection hole can be designed according to actual needs, without further restrictions.

[0043] like Figure 4As shown, in some embodiments, the base 41 has a mounting slot, the pop-out member 43 is slidably disposed in the mounting slot, and the biasing element 42 is located in the mounting slot and abuts against the pop-out member 43. By providing the mounting slot, the biasing element 42 and the pop-out member 43 can be positioned, facilitating their installation and improving assembly efficiency. Moreover, the mounting slot can guide the movement of the pop-out member 43, ensuring that the pop-out member 43 can retract smoothly when installing the battery pack 7 and pop out smoothly to lift the battery pack 7 when removing it.

[0044] like Figure 4 As shown, in some embodiments, a positioning post 411 is fixedly disposed in the mounting groove, extending in the same direction as the mounting groove, and the biasing element 42 is sleeved on the positioning post 411. By setting the positioning post 411, the position of the biasing element 42 in the mounting groove can be limited, thereby ensuring that the biasing element 42 will not bend radially during compression, extending the service life of the biasing element 42. Optionally, the biasing element 42 is a compression spring. The pop-out member 43 has a hollow structure and is sleeved on the biasing element 42. By designing the pop-out member 43 as a hollow structure, the material used in the pop-out member 43 can be saved, thereby ensuring economy, and the weight of the pop-out member 43 can be reduced, achieving lightweight design.

[0045] like Figure 6 As shown, in some embodiments, the power tool 100 further includes a limiting structure 6 for preventing the ejector 43 from dislodging from the mounting slot. By providing the limiting structure 6, the movement distance of the ejector 43 can be limited, ensuring that the ejector 43 remains within the mounting slot.

[0046] like Figure 2 , Figure 4 and Figure 6 As shown, in some embodiments, the limiting structure 6 includes a pressure plate 61, which is installed from the upper end of the battery compartment 3 to the bottom of the battery compartment 3 away from the base 41. The pop-out member 43 can extend or retract relative to the pressure plate 61. A through hole is provided on the pressure plate 61 at the position corresponding to the pop-out member 43, and a limiting protrusion 431 is provided on the pop-out member 43. When the battery pack 7 is not installed, the pop-out member 43 extends relative to the through hole under the action of the biasing element 42. At this time, the limiting protrusion 431 abuts against the pressure plate 61, and the limiting protrusion 431 and the pressure plate 61 cooperate to play a limiting role. When the battery pack 7 is installed in the battery compartment 3, the pop-out member 43 retracts relative to the through hole.

[0047] Because the power tool 100 is used in complex environments, water may accumulate in the battery compartment 3 when the working environment is wet or when used outdoors in rainy weather. Since the battery compartment 3 is a four-sided sealed structure, water accumulation may cause a short circuit. To solve this problem, such as... Figure 6 and Figure 7 As shown, in some embodiments, the battery compartment 3 is provided with a first through hole 32 and a second through hole 33. By providing the first through hole 32 and the second through hole 33, water accumulated in the battery compartment 3 can be quickly drained, thereby preventing short circuits and improving the safety of using the power tool 100.

[0048] like Figure 6 and Figure 7 As shown, in some embodiments, the first through hole 32 is arranged in the middle area of ​​the bottom of the battery compartment 3. When the power tool 100 is in normal use, since the first through hole 32 is located at the lowest point of the battery compartment 3, when there is water accumulation in the battery compartment 3, the water will automatically flow out through the first through hole 32, thereby preventing short circuit problems caused by water accumulation. In order to further improve the drainage effect, the bottom surface where the first through hole 32 is located is inclined towards the first through hole 32, that is, the included angle of the slopes on both sides of the first through hole 32 is less than 180°, which allows the water at the bottom of the battery compartment 3 to automatically collect at the first through hole 32 under its own weight and be discharged through the first through hole 32.

[0049] like Figure 6 and Figure 7 As shown, the battery compartment 3 is typically manufactured using a mold, and is formed by assembling a left half and a right half. In order to eliminate the need for separately creating the first through hole 32 and to reduce the manufacturing cost of the mold, in some embodiments, the first through hole 32 is arranged at the joining position of the left half and the right half of the battery compartment 3.

[0050] like Figure 7 As shown, in some embodiments, the second through hole 33 is arranged on the bottom of the battery compartment 3 on the side away from the accessory 110. When the power tool 100 is in the placement state after use, the accessory 110 of the power tool 100 faces upward. At this time, the second through hole 33 is at the lowest point of the power tool 100, and the water accumulated in the battery compartment 3 can automatically flow out through the second through hole 33, thereby ensuring that the power tool 100 can still automatically drain water when it is in the placement state.

[0051] In some embodiments, the power tool 100 is a cutting tool. By changing different attachments 110, it can perform different functions; for example, using a grinding wheel allows it to be used as a grinder, using a cutting disc allows it to be used as an angle grinder, or using a circular saw blade allows it to be used as a circular saw. By changing different attachments 110, it can be used flexibly in various situations, thus achieving multi-purpose functionality.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. An electric tool, comprising: Motor (1), used to drive accessory (110); A housing (2) that houses at least part of the motor (1) surrounds a handle (21) for the user to grip; The battery compartment (3) surrounds a receiving space (31) for accommodating a battery pack (7), which is pluggably installed in the receiving space (31); Its characteristic is that it further includes: The ejection device (4) includes a base (41), a biasing element (42), and an ejector (43); wherein the ejector (43) provides an ejection force to the battery pack (7) under the action of the biasing element (42); and The ejection device (4) is assembled from the outside of the battery compartment (3) along the direction of the ejection force and fixed to the bottom of the battery compartment (3).

2. The power tool according to claim 1, characterized in that, It also includes a fastener (5) that locks the base (41) to the bottom of the battery compartment (3) from the outside.

3. The power tool according to claim 1, characterized in that, The base (41) has an installation groove, the pop-out member (43) is slidably disposed in the installation groove, and the biasing element (42) is located in the installation groove and abuts against the pop-out member (43).

4. The power tool according to claim 3, characterized in that, A positioning post (411) is provided in the mounting groove, the positioning post (411) extends in the same direction as the mounting groove, and the biasing element (42) is sleeved on the positioning post (411).

5. The power tool according to claim 3, characterized in that, It also includes a limiting structure (6) for preventing the pop-out member (43) from coming out of the mounting slot.

6. The power tool according to claim 5, characterized in that, The limiting structure (6) includes a pressure plate (61), which is installed from the upper end of the battery compartment (3) to the bottom of the battery compartment (3) away from the base (41), and the pop-out member (43) can extend or retract relative to the pressure plate (61).

7. The power tool according to any one of claims 1-6, characterized in that, The battery compartment (3) is provided with a first through hole (32) and a second through hole (33).

8. The power tool according to claim 7, characterized in that, The first through hole (32) is located in the middle area of ​​the bottom of the battery compartment (3).

9. The power tool according to claim 7, characterized in that, The second through hole (33) is located on the bottom of the battery compartment (3) on the side away from the accessory (110).

10. The power tool according to any one of claims 1-6, characterized in that, The power tool (100) is a cutting tool.

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