Electric planer

Abstract

The present application relates to an electric planer. The electric planer comprises a machine body provided with a battery mounting structure; a battery assembly comprising a battery and a mounting piece detachably connected with the battery, the mounting piece being detachably connected with the battery mounting structure to arrange the battery on the machine body. The electric planer of the present application has lower manufacturing cost and wider adaptability.

Description

Technical Field

[0001] This invention relates to the field of power tool technology, and in particular to an electric planer. Background Technology

[0002] An electric planer is a power tool that uses an electric motor to drive a planing blade via a transmission belt to perform planing operations. It features high production efficiency and produces smooth, flat planed surfaces. It is widely used in building construction, home decoration, woodworking workshops, and other applications. However, in existing electric planers, the battery is usually detachably connected to the machine body. When manufacturers want to replace the battery with a different type during production, the new battery cannot be installed in conjunction with the original machine body, requiring redesign, mold making, and manufacturing. Therefore, current electric planers suffer from the problem of being unable to adapt to different types of batteries, resulting in high manufacturing costs. Summary of the Invention

[0003] Therefore, it is necessary to provide an electric planer that addresses the problems of existing electric planers being unable to adapt to different types of batteries and having high manufacturing costs.

[0004] The electric planer provided in this embodiment includes:

[0005] The body is equipped with a battery mounting structure;

[0006] A battery assembly, including a battery and a mounting component removably connected to the battery, the mounting component being removably connected to a battery mounting structure to mount the battery on the body.

[0007] In the above solution, the mounting component is detachably connected to the battery and also detachably connected to the battery mounting structure. In this way, when the user wants to replace the battery, only the corresponding mounting component needs to be remade according to the different batteries, without having to redesign and manufacture the entire machine body. This reduces manufacturing costs and improves the adaptability of the electric planer.

[0008] In one embodiment, the battery mounting structure is configured with a plug-in cavity having a first opening communicating with the outside of the body;

[0009] The mounting component has a plug-in part on the side away from the battery. The plug-in part is inserted into and connected to the plug-in cavity through the first opening, and at least part of the battery structure is located outside the plug-in cavity.

[0010] In one embodiment, the inner contour of the insertion cavity matches the outer contour of the insertion portion.

[0011] In one embodiment, the electric planer further includes a Bluetooth communication module, and the machine body is also provided with a first mounting base. The Bluetooth communication module is mounted on the first mounting base, and one surface of the first mounting base forms the inner wall of a partial insertion cavity.

[0012] In one embodiment, the mounting component includes a main body portion disposed opposite to and connected to the insertion portion, and the insertion cavity is further provided with a clearance opening communicating with the outside of the machine body, the clearance opening being connected to the first opening;

[0013] The main body has a battery connection part for installing the battery on the side opposite to the plug-in part, and the battery connection part extends out of the plug-in cavity through the clearance opening.

[0014] In one embodiment, the battery mounting structure includes a first surface and a second surface connected together, with an angle of less than 180° between the first surface and the second surface; an avoidance opening and a first opening are respectively formed on the first surface and the second surface.

[0015] In one embodiment, the battery is provided with an electrical connector for external electrical connection, and the mounting member is provided with a clearance notch corresponding to the electrical connector, the electrical connector passing through the clearance notch and extending into the insertion cavity.

[0016] In one embodiment, the two ends of the plug portion in the width direction are provided with first protrusions, and the inner wall of the plug cavity is provided with a slot corresponding to the position of the first protrusion. The first protrusion and the slot engage with each other to fix the mounting part in the plug cavity.

[0017] In one embodiment, the electric planer further includes an adjustment assembly and a movable base plate disposed at the bottom of the machine body; the adjustment assembly includes:

[0018] A rotating handle is located on the machine body and connected to the moving base plate. The rotating handle is configured to rotate relative to the machine body and drive the moving base plate to move relative to the machine body in a direction perpendicular to the moving base plate. The first end face of the rotating handle along its own axial direction is constructed with a plurality of first grooves arranged circumferentially on the rotating handle.

[0019] The first spring has a receiving hole on the surface of the body facing the first end face, the first spring is disposed in the receiving hole, and a bearing part is provided at one end near the slot of the receiving hole; and

[0020] The abutting member is provided on the bearing part and can abut against each of the first grooves in sequence under the action of the first spring when the rotating handle rotates;

[0021] The inner diameter of the first spring is larger than the outer contour dimensions of the bearing portion and the abutment, so that the abutment retracts at least partially into the inner side of the first spring when passing through the portion between adjacent grooves.

[0022] In one embodiment, the support portion is configured as a second spring, the outer diameter of which is smaller than the inner diameter of the first spring.

[0023] In one embodiment, the abutment is configured as a ball bearing, the diameter of which is greater than the inner diameter of the second spring and less than the inner diameter of the first spring.

[0024] In one embodiment, the inner diameter of the receiving hole matches the outer diameter of the first spring.

[0025] In one embodiment, the rotating handle is located on one side of the machine body;

[0026] The movable base plate includes a base plate body and a connector connected to the base plate body. The end of the connector away from the base plate body passes through the machine body and is threaded to the rotating handle.

[0027] When the rotating handle rotates relative to the machine body, the connecting piece drives the base plate body to move along the axial direction of the connecting piece.

[0028] In one embodiment, the rotating handle includes:

[0029] The knob is threaded to the end of the connector furthest from the base plate; and

[0030] A rotating disc is located on the outer circumference of the knob and has scale markings. The surface of the rotating disc facing the body forms the first end face.

[0031] In one embodiment, the electric planer also includes a circuit board assembly and a stationary base plate disposed at the bottom of the machine body;

[0032] The body structure has a receiving cavity, and the body is provided with a first notch that connects to the receiving cavity;

[0033] The circuit board assembly includes:

[0034] A heat sink, located within the accommodating cavity, is made of a thermally conductive material; and

[0035] The control circuit board is mounted on the heat sink box. The control circuit board has multiple heating elements, which are in contact with the heat sink box.

[0036] The static base plate contacts the heat sink via the first notch.

[0037] In one embodiment, the base plate has a first protrusion that penetrates the first notch and abuts against the heat sink; and / or

[0038] The heat sink has a second protrusion that passes through the first notch and abuts against the static base plate.

[0039] In one embodiment, the side of the heat sink facing the control circuit board has a third protrusion, which abuts against the heat-generating element.

[0040] In one embodiment, the first notch is configured as a round hole or a square hole.

[0041] In one embodiment, the machine body is configured with a wood chip channel, an air supply chamber, and a planer chamber; the wood chip channel is configured with at least two chip outlets, and the wood chip channel is provided with an air inlet for the air supply chamber to enter, and a chip inlet for the wood chips in the planer chamber to enter.

[0042] The electric planer also includes a plug, which includes:

[0043] The cover is located at the chip outlet and outside the chip outlet.

[0044] The chip-blocking part is integrally formed with the cover body and is sealed inside the chip outlet. At least a portion of the chip-blocking part is positioned at the air inlet.

[0045] In one embodiment, the chip baffle includes an integrally formed sealing portion and a chip baffle plate, the chip baffle plate extending from the sealing portion in a direction away from the sealing portion and used to block the air inlet.

[0046] In one embodiment, a notch is provided at the junction of the chip baffle and the sealing part. When the chip baffle is placed at the air inlet, the gas in the air inlet flows into the inner wall of the wood chip channel and the space defined by the chip baffle through the notch.

[0047] In one embodiment, a chip outlet is provided at each of the two opposite ends of the wood chip channel, and the air inlet and the chip inlet are both located between the two opposite ends of the wood chip channel.

[0048] The chip blocking part also includes a reversing plate connected to the sealing part. The reversing plate and the chip blocking plate are arranged opposite to each other to define a chip discharge channel that communicates with the chip discharge port. Two reversing ports are opened on the chip discharge channel on both sides of the chip blocking plate. When the plug is installed in one of the two chip discharge ports, the chip discharge channel communicates with the chip inlet through different reversing ports.

[0049] In one embodiment, the sealing portion has at least one perforated portion.

[0050] In one embodiment, the machine body is configured with a sawdust channel, an air supply chamber, and a planer chamber;

[0051] The wood chip channel is provided with an air inlet for connecting the air outlet of the air supply chamber and a chip inlet for the wood chips in the planer chamber to enter. The wood chip channel is also provided with a chip outlet, which is used to allow the airflow entering the wood chip channel to drive the wood chips out of the wood chip channel.

[0052] A fan is installed in the air supply chamber. In the cross-section of the air supply chamber along the fan axis, the section of the chamber wall near the air outlet is constructed in an involute shape. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the structure of the electric planer provided in an embodiment of this application;

[0054] Figure 2 This is an exploded structural diagram of an electric planer provided in an embodiment of this application;

[0055] Figure 3 A cross-sectional view of the battery assembly mounted on the machine body in an electric planer according to an embodiment of this application;

[0056] Figure 4 A schematic diagram of another structure of the mounting component in the electric planer provided in the embodiments of this application;

[0057] Figure 5 This is an exploded structural diagram of an electric planer provided in an embodiment of this application;

[0058] Figure 6 This is a schematic diagram of the rotating shank in an electric planer provided in an embodiment of this application;

[0059] Figure 7 This is a schematic diagram of the structure of the first spring in the electric planer provided in an embodiment of this application;

[0060] Figure 8 An exploded view of the electric planer provided in an embodiment of this application from another angle;

[0061] Figure 9 To be Figure 8 A schematic diagram of the structure after some parts of the electric planer have been removed;

[0062] Figure 10 This is a schematic diagram of the electric planer from another angle, provided in an embodiment of this application.

[0063] Figure 11 A cross-sectional view showing the connection relationship between the sawdust channel, the air supply chamber, and the planer blade chamber in an electric planer provided in an embodiment of this application;

[0064] Figure 12 This is a schematic diagram of the structure of the plug in the electric planer provided in the embodiments of this application;

[0065] Figure 13 A cross-sectional view of the plug in an electric planer provided in an embodiment of this application;

[0066] Figure 14a A schematic diagram illustrating another structure of the plug in an electric planer provided in an embodiment of this application;

[0067] Figure 14b A schematic diagram illustrating another structure of the plug in the electric planer provided in this application embodiment;

[0068] Figure 15 An exploded view of the electric planer provided in an embodiment of this application from another angle;

[0069] Figure 16This is a schematic diagram of the air supply chamber in an electric planer provided in an embodiment of this application.

[0070] Explanation of icon numbers:

[0071] 100. Electric planer;

[0072] 10. Body; 101. Receiving cavity; 1011. First notch; 11. Battery mounting structure; 111. Insertion cavity; 1111. Slot; 112. First opening; 115. First mounting base; 116. Second mounting base; 117. Clearance opening; 118. First surface; 119. Second surface.

[0073] 20. Battery assembly; 21. Battery; 211. Slot; 22. Mounting component; 22'. First mounting component; 221. Insertion part; 2211. First protrusion part; 222. Main body part; 223. Battery connection part; 224. Limiting component; 225. Clearance notch;

[0074] 30. Adjustment assembly; 31. First spring; 32. Second spring; 33. Rotating handle; 331. First groove; 332. Receiving hole; 333. Knob; 334. Rotating disc; 34. Supporting part; 35. Abutting part;

[0075] 40. Static base plate; 41. First protrusion;

[0076] 50. Movable base plate; 51. Base plate body; 52. Connecting parts;

[0077] 60. Circuit board assembly; 61. Heat sink; 611. Third protrusion; 62. Control circuit board;

[0078] 70. Plug; 71. Cover body; 72. Chip baffle; 721. Sealing part; 7211. Hollowed-out part; 722. Chip baffle plate; 723. Notch part; 724. Reversing plate; 725. Chip discharge channel; 726. Reversing port;

[0079] 80. Planer assembly; 81. Planer chamber; 82. Wood chip channel; 821. First space; 822. Second space; 823. Chip outlet; 824. Chip inlet; 825. Air inlet; 83. Air supply chamber; 831. Cover; 832. Fan; 833. Air outlet. Detailed Implementation

[0080] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0081] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0085] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0086] The electric planer 100 of this application embodiment is described below with reference to the accompanying drawings. It should be noted that, for ease of explanation, in this application embodiment, the height direction of the electric planer 100 is defined as the Z direction, the width direction of the electric planer is defined as the Y direction, and the direction perpendicular to both the Z and Y directions is defined as the X direction.

[0087] Figure 1 This is a schematic diagram of the structure of an electric planer provided in an embodiment of this application.

[0088] Reference Figure 1 The electric planer 100 provided in this application embodiment includes: a body 10, a battery assembly 20, a drive assembly (not shown), a planer blade assembly 80, a chip removal assembly, a stationary base plate 40, a moving base plate 50, and an adjustment assembly 30.

[0089] The battery assembly 20 is electrically connected to the drive assembly and supplies power to the drive assembly. The drive assembly is connected to the planer assembly 80 and can drive the planer assembly 80 to rotate for planing. The chip removal assembly is used to remove the wood chips generated during planing. The stationary base plate 40 and the movable base plate 50 are located at the bottom of the machine body 10 to support the entire electric planer 100. The planer assembly 80 is located between the stationary base plate 40 and the movable base plate 50. The adjustment assembly 30 is used to raise and lower the movable base plate 50 relative to the machine body 10 to adjust the size of the planer assembly 80 exposed above the movable base plate 50.

[0090] It is understood that the structure illustrated in the embodiments of this application does not constitute a specific limitation on the electric planer 100. In other embodiments of this application, the electric planer 100 may include more or fewer components than described above, or combine some components, or split some components, or have different component arrangements.

[0091] The following describes each structural component of the electric planer 100.

[0092] As mentioned earlier, in electric planers of the relevant technology, the battery is usually detachably connected to the machine body. When manufacturers want to replace different types of batteries during the production process, the new batteries cannot be installed in conjunction with the original machine body. It is necessary to redesign, mold, and manufacture them. Therefore, existing electric planers have the problem of being unable to adapt to different types of batteries and having high manufacturing costs.

[0093] To address the aforementioned issues, the electric planer 100 of this application embodiment features a separately provided mounting component that is detachably connected to the machine body 10. When different batteries 21 are required to work together, only the mounting component needs to be remade, resulting in lower costs and wider adaptability.

[0094] Figure 2 This is an exploded view of the electric planer provided in an embodiment of this application. Figure 3 A cross-sectional view of the battery assembly mounted on the machine body in an electric planer according to an embodiment of this application.

[0095] Reference Figure 2 , Figure 3 In the electric planer 100 of this application embodiment, the machine body 10 is provided with a battery mounting structure 11; the battery assembly 20 includes a battery 21 and a mounting member 22 detachably connected to the battery 21. The mounting member 22 is detachably connected to the battery mounting structure 11 to mount the battery 21 on the machine body 10.

[0096] In the above solution, the mounting component 22 is detachably connected to the battery 21 and is also detachably connected to the battery mounting structure 11. In this way, when the user wants to replace the battery 21, only the mounting component 22 that matches the different batteries 21 needs to be remade, without having to redesign and manufacture the entire machine body 10. This reduces manufacturing costs and improves the adaptability of the electric planer 100.

[0097] Continue to refer to Figure 2 The battery mounting structure 11 has a plug-in cavity 111, which has a first opening 112 communicating with the outside of the body 10. The mounting member 22 has a plug-in part 221 on the side opposite to the battery 21. The plug-in part 221 is inserted into and connected to the plug-in cavity 111 through the first opening 112. At least part of the battery 21 is located outside the plug-in cavity 111.

[0098] To better position the mounting component 22, the inner contour of the insertion cavity 111 matches the outer contour of the insertion part 221.

[0099] Continue to refer to Figure 2 , Figure 3 The electric planer 100 also includes a Bluetooth communication module (not shown), and the machine body 10 is also provided with a first mounting base 115. The Bluetooth communication module is mounted on the first mounting base 115, and one surface of the first mounting base 115 forms part of the inner wall of the insertion cavity 111.

[0100] In some other embodiments, the electric planer 100 may also include a control circuit board 62 and a terminal block (not shown) electrically connected to the control circuit board 62. A second mounting seat 116 is provided on the inner wall of the insertion cavity 111, and the terminal block is mounted on the second mounting seat 116. One surface of the second mounting seat 116 forms part of the inner wall of the insertion cavity 111.

[0101] Furthermore, the mounting component 22 includes a main body 222 disposed opposite to and connected to the insertion part 221. The insertion cavity 111 is also provided with a clearance opening 117 communicating with the outside of the body 10. The clearance opening 117 is connected to the first opening 112. A battery connection part 223 for installing the battery 21 is provided on the side of the main body 222 opposite to the insertion part 221. The battery connection part 223 extends out of the insertion cavity 111 through the clearance opening 117. In this way, the battery 21 can be connected to the battery connection part 223. When the insertion part 221 is inserted into the insertion cavity 111, the main body 222 passes through the clearance opening 117, while the battery 21 can be located outside the insertion cavity 111.

[0102] Here, the battery connector 223 can be configured as two protruding structures extending along the insertion direction of the battery 21, spaced apart on the battery 21 in the Y direction. The battery 21 has two slots 211 corresponding to the two protruding structures, extending along the insertion direction of the battery 21. The two protruding structures are respectively inserted into the two slots 211, thereby connecting the battery 21 to the mounting member 22. It is understood that the detachable method of the battery 21 and the mounting member includes, but is not limited to, this; other detachable methods such as snap-fit ​​or screw connection can also be used.

[0103] Continue to refer to Figure 2 To make the battery 21 more compact, the first opening 112 and the clearance opening 117 can be located on different surfaces. Specifically, the battery mounting structure 11 includes a first surface 118 and a second surface 119 connected together, with an angle of less than 180° between the first surface 118 and the second surface 119; the clearance opening 117 and the first opening 112 can be formed on the first surface 118 and the second surface 119, respectively. In this embodiment, the first surface 118 and the second surface 119 are perpendicular as an example, but the angle between the first surface 118 and the second surface 119 can also be other.

[0104] In this embodiment, the front end of the mounting member 22 along its insertion direction is also provided with a limiting member 224. When the mounting member 22 is inserted into the insertion cavity 111, the limiting member 224 abuts against the inner surface of the opening edge of the avoidance opening 117.

[0105] Continue to refer to Figure 2In order to further limit the displacement of the mounting part 22 along its own insertion direction, the two ends of the insertion part 221 in the Y direction are provided with a first protrusion 2211. The inner wall of the insertion cavity 111 is provided with a slot 1111 corresponding to the position of the first protrusion 2211. The first protrusion 2211 and the slot 1111 engage with each other to fix the mounting part 22 in the insertion cavity 111.

[0106] In this embodiment of the application, the example is that the two ends of the plug portion 221 in the Y direction are provided with two first protrusions 2211. Of course, the number is not limited to this and can be other.

[0107] Figure 4 This is a schematic diagram of another structure of the mounting component in the electric planer provided in an embodiment of this application.

[0108] exist Figure 2 , Figure 3 Based on the structure of the mounting component 22 shown, the present application embodiment improves the structure of the main body 222 of the mounting component. For ease of distinction, the improved mounting component is defined as the first mounting component 22'. In the first mounting component 22', the first protrusion 2211, the insertion part 221, and other structures are similar to those of the first mounting component 22'. Figure 2 , Figure 3 The mounting component 22 shown is the same, and will not be described again here.

[0109] Reference Figure 4 As mentioned above, the battery 21 is provided with an electrical connector for external electrical connection. The first mounting member 22' is provided with a clearance notch 225 corresponding to the electrical connector. The electrical connector can pass through the clearance notch 225 and extend into the insertion cavity 111, which facilitates the electrical connection between the electrical connector and the control circuit board 62 located in the body 10.

[0110] Figure 5 This is an exploded view of the electric planer provided in an embodiment of this application. Figure 6 This is a schematic diagram of the rotating shank in the electric planer provided in the embodiments of this application. Figure 7 This is a schematic diagram of the structure of the first spring in the electric planer provided in an embodiment of this application.

[0111] In electric planers of this technology, the stationary base plate, planer blade assembly, and movable base plate are typically arranged side-by-side at the bottom of the machine body. The machine body also features a knob, one end of which is connected to the movable base plate. Rotating the knob raises or lowers the movable base plate relative to the machine body, adjusting the exposed size of the planer blade assembly relative to the movable base plate, thereby adjusting the planing depth. However, when the operator turns the knob, it rotates smoothly, and the amount of rotation is entirely judged visually. This often results in excessive or insufficient rotation, requiring repeated knob turning. This process is time-consuming, laborious, and inconvenient.

[0112] In view of this, refer to Figure 5 , Figure 6 , Figure 7 In the electric planer 100 of this application embodiment, the adjustment assembly 30 includes: a rotating handle 33, disposed on the machine body 10 and connected to the movable base plate 50, the rotating handle 33 being configured to rotate relative to the machine body 10 and drive the movable base plate 50 to move relative to the machine body 10 in a direction perpendicular to the movable base plate 50; a plurality of first grooves 331 arranged circumferentially spaced on the first end face of the rotating handle 33 along its own axial direction; and a first spring 31, which is formed on the surface of the machine body 10 facing the first end face. There is a receiving hole 332, a first spring 31 is disposed in the receiving hole 332, and a bearing part 34 is provided at one end near the groove of the receiving hole 332; and an abutment 35 is disposed in the bearing part 34, and can abut against each of the first grooves 331 in sequence under the action of the spring when the rotating handle 33 rotates; the inner diameter of the first spring 31 is larger than the outer contour size of the bearing part 34 and the abutment 35, so that the abutment 35 retracts into the inner side of the first spring 31 when passing through the part between adjacent first grooves 331.

[0113] In the above scheme, by setting a first spring 31 and an abutment 35, and arranging first grooves 331 circumferentially spaced on the rotating handle 33, on the one hand, when the rotating handle 33 rotates, the abutment 35 abuts against each of the first grooves 331 sequentially under the elastic force of the spring. In other words, the abutment 35 repeatedly abuts against the first groove 331 and against the portion between two adjacent first grooves 331. The tactile sensation provided to the operator is different when abutting against the first groove 331 and when abutting against the portion between two adjacent first grooves 331. This alternating change in tactile sensation when the rotating handle 33 rotates can help the operator judge the amount of rotation, avoiding the problem of repeatedly adjusting the rotating handle 33 and simplifying the operation process. In addition, the partial contact between the abutment 35 and the first groove 331 and the portion between adjacent first grooves 331 forms resistance feedback on the rotation of the rotating handle 33, which also improves the operator's operating experience.

[0114] On the other hand, the first spring 31 is disposed within the receiving hole 332, and the inner diameter of the first spring 31 is larger than the outer contour dimensions of the bearing portion 34 and the abutment member 35, so that the abutment member 35 at least partially retracts into the main body section when passing through the portion between adjacent first grooves 331. In this way, even if the abutment member 35 has a tendency to move tangentially due to frictional contact with the first end face, it will not detach from the first spring 31 due to the blocking effect of the first spring 31 and the hole wall of the receiving hole 332. This makes the movement of the abutment member 35 in the abutment direction more stable, and prevents the abutment member 35 from swaying left and right with the first spring 31.

[0115] The rotating handle 33 has multiple first grooves 331 spaced apart circumferentially on its first end face along its axial direction. Specifically, the center of any one of the first grooves 331 is located at the intersection of the axis of the rotating handle 33 and the first end face, with distance *r*. All the centers of the first grooves 331 lie on a circle with radius *r* centered at the intersection of the axis of the rotating handle 33 and the first end face. When the rotating handle 33 rotates, the position of the abutment 35 remains unchanged. Since the rotating handle 33 does not move relative to the abutment 35 in either the X or Y directions during rotation, the rotation of the rotating handle 33 is essentially a rotation of the rotating handle 33 relative to the abutment 35 around its own axial direction. Therefore, when the rotating handle 33 rotates, each of the first grooves 331 moves relative to the abutment 35 along the trajectory of this circle. In other words, when the rotating handle 33 rotates, the abutment 35 can always abut against any one of the first grooves 331 on this circle.

[0116] Furthermore, the first spring 31 described here is disposed within the receiving hole 332. This can mean that the first spring 31 is placed within the receiving hole 332 but not connected to it, and the sum of the lengths of the first spring 31 and the supporting portion 34 is slightly less than the depth of the receiving hole 332. In this way, the abutment 35 is supported on the supporting portion 34, and at least part of the abutment 35 is located within the receiving hole 332. When the rotating handle 33 rotates, regardless of whether the abutment 35 is located in the first groove 331 or between two first grooves 331, it will not detach from the supporting portion 34 due to the protection of the edge of the receiving hole 332. Of course, the first spring 31 can also be detachably connected within the receiving hole 332.

[0117] To further improve the stability of the abutting member 35 during the abutting process, the inner diameter of the receiving hole 332 can be matched with the outer diameter of the first spring 31. Matching means that the inner diameter of the receiving hole 332 is approximately the same as the outer diameter of the first spring 31, or the inner diameter of the receiving hole 332 is slightly larger than the outer diameter of the first spring 31, as long as the hole wall of the receiving hole 332 can limit the swaying of the first spring 31.

[0118] In this embodiment, reference is continued. Figure 7 The bearing portion 34 is configured as a second spring 32, the outer diameter of which is smaller than the inner diameter of the first spring 31. In this way, the second spring 32 can also provide elastic force for the abutting action of the abutting member 35. In addition, the outer diameter of the second spring 32 is smaller than the inner diameter of the first spring 31, which makes it easier for the second spring 32 to retract into the inside of the first spring 31.

[0119] Alternatively, exemplarily, the abutment 35 can be configured as a ball bearing, with a diameter larger than the inner diameter of the second spring 32, and outer diameters of both the abutment 35 and the second spring 32 smaller than the inner diameter of the first spring 31. Because the diameter of the abutment 35 is larger than the inner diameter of the second spring 32, a portion of the ball bearing's surface can be supported within the second spring 32, while most of it is exposed outside the second spring 32. Since the outer diameters of both the abutment 35 and the second spring 32 are smaller than the inner diameter of the first spring 31, when the ball bearing is pressed against two adjacent first grooves 331, the abutment 35 and the second spring 32 can retract into the inner side of the first spring 31.

[0120] In this embodiment of the application, combined with Figure 1 and Figure 5 The rotating handle 33 can be located at the top of the machine body 10. The movable base plate 50 includes a base plate body 51 and a connector 52 connected to the base plate body 51. One end of the connector 52 away from the base plate body 51 passes through the machine body 10 and is threaded to the rotating handle 33. When the rotating handle 33 rotates relative to the machine body 10, the connector 52 drives the base plate body 51 to move along the axial direction of the connector 52, that is, in a direction perpendicular to the movable base plate 50.

[0121] Specifically, the first end face of the rotating handle 33 can abut against the machine body 10. When the rotating handle 33 rotates, since it remains stationary relative to the machine body 10 in both the X and Y directions, the threaded connector 52 will move along its own axial direction, causing the moving base plate 50 to move perpendicular to itself, thereby adjusting the size of the planer assembly 80 protruding from the moving base plate 50. Of course, during the rotation of the rotating handle 33, the abutting member 35, under the elastic force of the first spring 31 and the second spring 32, repeatedly abuts against the first groove 331 and then against the portion between two adjacent first grooves 331. The operator can use their sense of touch to help judge the amount of rotation, reducing the number of repeated rotations and simplifying the adjustment process.

[0122] In this embodiment, reference is continued. Figure 6 The rotating handle 33 may specifically include a knob 333 and a rotating disk 334. Specifically, the knob 333 is threadedly connected to the end of the connector 52 away from the base plate body 51. The rotating disk 334 is located on the outer peripheral surface of the knob 333 and has scale markings (not shown). The surface of the rotating disk 334 facing the machine body 10 forms the first end face, and the side opposite to the first end face is configured as the outer peripheral surface with scale markings. This allows for the quantification of the rotation amount of the rotating handle 33, making it convenient for the operator to obtain the rotation amount in real time.

[0123] Figure 8 This is an exploded structural diagram of the electric planer provided in an embodiment of this application from another angle. Figure 9 To be Figure 8 This is a schematic diagram of the structure after some parts of the electric planer have been removed. It should be noted that... Figure 8 In order to represent the structure, the position of the circuit board assembly 60 is moved a certain distance in the positive Z-axis direction relative to the original mounting position.

[0124] Reference Figure 8 , Figure 9 As mentioned above, the electric planer 100 in this embodiment of the application includes a drive assembly and a planer blade assembly 80. In order to control the drive assembly and the planer blade assembly 80, the electric planer 100 also includes a circuit board assembly 60 electrically connected to the drive assembly.

[0125] For example, the body 10 is constructed with a receiving cavity 101, and the body 10 is provided with a first notch 1011 communicating with the receiving cavity 101.

[0126] The circuit board assembly 60 includes a heat sink 61 and a control circuit board 62. The heat sink 61 is located within the accommodating cavity 101 and is made of a thermally conductive material. The control circuit board 62 is mounted on the heat sink 61 and has multiple heating elements (not shown). The heating elements are in contact with the heat sink 61, and the stationary base plate 40 is in contact with the heat sink 61 through the first notch 1011.

[0127] In the above scheme, the heat-generating element on the control circuit board 62 is in contact with the heat sink 61, which can transfer heat to the heat sink 61. The heat sink 61 is in contact with the static base plate 40 through the first notch 1011, which can further transfer heat to the static base plate 40, and then dissipate it into the air through the static base plate 40, which has a good heat dissipation effect on the control circuit board 62.

[0128] Since the base plate 40 and the heat sink 61 are located outside and inside the body 10 respectively, a first notch 1011 is provided on the body 10 for the base plate 40 and the heat sink 61 to contact each other. Specifically, the base plate 40 has a first protrusion 41 that passes through the first notch 1011 and abuts against the heat sink 61. Alternatively, the heat sink 61 may have a second protrusion that passes through the first notch 1011 and abuts against the base plate 40. Or, the base plate 40 may have a first protrusion 41, and the heat sink 61 may have a second protrusion corresponding to the first protrusion 41, with the base plate 40 and the heat sink 61 contacting each other through the abutment of the first and second protrusions.

[0129] On the other hand, in order to make better contact between the heat sink 61 and the heat-generating element on the control circuit board 62, the side of the heat sink 61 facing the control circuit board 62 may also be provided with a third protrusion 611, which abuts against the heat-generating element.

[0130] In this embodiment, the first notch 1011 is configured as a round hole or a square hole, which has a smaller impact on the strength of the body 10 compared to other methods.

[0131] Furthermore, the distance between the first gap 1011 and the body 10 in the X and Y directions is greater than 0.

[0132] Figure 10 This is a schematic diagram of the electric planer from another angle, provided in an embodiment of this application. Figure 11 This is a cross-sectional view of an electric planer provided in an embodiment of this application, showing the connection relationship between the sawdust channel, the air supply chamber, and the planer blade chamber. Figure 12 This is a schematic diagram of the plug structure in the electric planer provided in an embodiment of this application. Figure 13 This is a cross-sectional view of the plug in an electric planer provided in an embodiment of this application.

[0133] Reference Figure 10 , Figure 11 In the electric planer 100 of this application embodiment, in order to orderly discharge the wood chips generated by the planer assembly 80, it is advisable to provide a chip discharge channel in the machine body 10.

[0134] In a specific implementation, the machine body 10 may be constructed with a wood chip channel 82, an air supply chamber 83, and a planer chamber 81; the wood chip channel 82 is constructed with at least two chip outlets 823, and the wood chip channel 82 is provided with an air inlet 825 for the air supply chamber 83 to enter, and a chip inlet 824 for the wood chips in the planer chamber 81 to enter.

[0135] In the above scheme, the air inlet 825 of the wood chip channel 82 can be connected to the air supply chamber 83, so that the airflow generated in the air supply chamber 83 can enter the wood chip channel 82 through the air inlet 825. The wood chip channel 82 is also provided with a chip inlet 824, which can be connected to the planer chamber 81, so that the wood chips generated by the planer assembly 80 in the planer chamber 81 can enter the wood chip channel 82 through the chip inlet 824. In addition, the wood chip channel 82 is also provided with at least two chip outlets 823, so that the wood chips entering the wood chip channel 82, after mixing with the airflow, can be carried out of the wood chip channel 82 by the airflow through the unblocked chip outlets 823, realizing the orderly discharge of wood chips.

[0136] Combination Figure 11 , Figure 12 , Figure 13 The electric planer 100 also includes a plug 70, which includes:

[0137] The cover portion 71 is provided on the chip outlet 823 and is located outside the chip outlet 823;

[0138] The chip-blocking part 72 is integrally formed with the cover part 71 and is sealed inside the chip outlet 823. At least a portion of the structure of the chip-blocking part 72 is blocked at the air inlet 825.

[0139] It is understandable that when the electric planer 100 is working, at least one of the at least two chip outlets 823 in the chip channel 82 is not blocked by the plug 70 for chip removal.

[0140] In this embodiment, the example is that the wood chip channel 82 has two chip outlets 823. When the electric planer 100 is working, one chip outlet 823 is blocked by the plug 70. The same applies to other cases where the number of chip outlets 823 and the number of blocked chip outlets 823 are different, and will not be described in detail here.

[0141] In the above scheme, we will continue to refer to Figure 11 The outer contour of the cover portion 71 is set slightly larger than the inner contour of the chip outlet 823, so that when the cover portion 71 covers the chip outlet 823, it can block the chip outlet 823. In addition, when the plug 70 is installed in a chip outlet 823, the chip baffle portion 72 blocks the wood chip channel 82, and at least a part of the structure of the chip baffle portion 72 blocks the air inlet 825. In this way, the wood chips entering the wood chip channel 82 from the chip inlet 824 which communicates with the planer chamber 81 are blocked by the chip baffle portion 72 and will not enter the air supply chamber 83 from the air inlet 825, thereby avoiding damage to the fan 832 and the like.

[0142] Understandably, the integrated molding of the cover 71 and the chip-blocking part 72 can reduce manufacturing costs.

[0143] Combination Figure 11 , Figure 12 , Figure 13 The chip-blocking part 72 includes an integrally formed sealing part 721 and a chip-blocking plate 722. The chip-blocking plate 722 extends from the sealing part 721 in a direction away from the sealing part 721, for example, in the Y direction, and is used to block the air inlet 825. In this way, the chip-blocking plate 722 can divide the interior of the wood chip channel 82 into two spaced-apart spaces, a first space 821 and a second space 822, effectively preventing wood chips from entering the air supply chamber 83 through the air inlet 825. The space near the air inlet 825 is the first space 821, and the space near the chip inlet 824 is the second space 822.

[0144] Furthermore, a notch 723 is provided at the junction of the chip baffle 722 and the sealing part 721. When the chip baffle 722 is positioned at the air inlet 825, the gas at the air inlet 825 flows through the notch 723 into the inner wall of the wood chip channel 82 and the space defined by the chip baffle 722, i.e., the second space 822. See details. Figure 11Solid arrows indicate the airflow path. The airflow generated by the air chamber 83 enters the first space 821 through the air inlet 825. Due to the obstruction of the chip baffle 722, the airflow flows along the surface of the chip baffle 722, reaches the notch 723, and enters the second space 822. It also carries the wood chips generated in the planer chamber 81, which enter the second space 822 through the chip inlet 824, and flows out of the wood chip channel 82 through the chip outlet 823. Dashed arrows indicate the wood chip flow path. The wood chips from the planer chamber 81 enter the second space 822 of the wood chip channel 82 through the chip inlet 824, and are carried out of the wood chip channel 82 through the unblocked chip outlet 823 by the airflow flowing in the second space 822.

[0145] In this embodiment, reference is continued. Figure 12 , Figure 13 As mentioned above, the cover portion 71 and the chip-blocking portion 72 are integrally formed. In order to make the wall thickness of the plug 70 as uniform as possible, at least one hollow portion 7211 can be provided on the sealing portion 721.

[0146] For example, the plug 70 can be integrally molded using injection molding. It is understood that solid block structures will shrink and deform after injection molding, so this must be avoided in the structural design. However, by providing a hollow portion 7211 on the sealing portion 721 as described above, the hollow structure is supported by the mold during injection molding, resulting in less deformation of the hollow portion during the molding process, thus improving product strength and quality.

[0147] In this embodiment, the two chip outlets 823 can be located at the two opposite ends of the wood chip channel 82, and the air inlet 825 and the chip inlet 824 are both located between the two opposite ends of the wood chip channel 82.

[0148] Figure 14a 14b is a schematic diagram of another structure of the plug in the electric planer provided in the embodiment of this application.

[0149] Combination Figure 11 and Figure 14aThe chip-blocking part 72 also includes a reversing plate 724 connected to the sealing part 721. The reversing plate 724 is arranged opposite to the chip-blocking plate 722 to define a chip discharge channel 725 communicating with the chip discharge port 823. Two reversing ports 726 are provided on the chip discharge channel 725 located on both sides of the chip-blocking plate 722. When the plug 70 is installed on one of the two chip discharge ports 823, the chip discharge channel 725 communicates with the chip inlet port 824 through different reversing ports 726. Thus, when the plug 70 is installed on either of the two chip discharge ports 823, the wood chips entering from the chip inlet port 824 can enter the chip discharge channel 725 and be discharged from the electric planer 100 through the chip discharge port 823 communicating with the chip discharge channel 725. The other reversing port 726 faces the inner wall of the wood chip channel 82 and does not affect the wood chip discharge process. Furthermore, after removing the plug from the chip outlet 823 on one side and inserting it into the chip outlet 823 on the other side, it is not necessary to rotate the plug around its own circumference to connect the other reversing port 76 with the chip inlet 824. This reversing port 73 can also cooperate with the chip outlet channel 725 to complete the chip discharge.

[0150] Figure 14b The structure of the plug 70 shown is similar to Figure 14b Similarly, the difference lies in the slight variation in the specific structure of the hollowed-out part 7211.

[0151] Figure 15 This is an exploded structural diagram of the electric planer provided in an embodiment of this application from another angle. Figure 16 This is a schematic diagram of the air supply chamber in an electric planer provided in an embodiment of this application.

[0152] Reference Figure 15 , Figure 16 As mentioned above, the machine body 10 has a wood chip channel 82 and an air supply chamber 83 and a planer chamber 81 connected to the wood chip channel 82. The planer assembly 80 can be located in the planer chamber 81, so that the wood chips cut by the planer assembly 80 can enter the wood chip channel 82 from the planer chamber 81 through the chip inlet 824.

[0153] For example, the air supply chamber 83 has an openable and closable cover 831. In addition, a fan 832 is provided inside the air supply chamber 83. The fan 832 is connected to the drive assembly and rotates under the drive of the drive assembly to generate airflow inside the air supply chamber 83.

[0154] Reference Figure 16 In the cross-section of the air supply cavity 83 along the axial direction of the fan 832, the portion of the cavity wall near the air outlet 833 is constructed in an involute shape.

[0155] In existing technologies where the air supply cavity is circular, the centrifugal force is equal at all points along the outer edge of the fan, making it difficult to eject wood chips if they enter the air supply cavity. However, in this embodiment, the section of the air supply cavity 83 near the outlet end 833 in the cross-section along the axial direction of the fan 832 is constructed in an involute shape. Because the centrifugal force increases with the radius of the section of the cavity wall near the outlet end 833, it is beneficial for wood chips that accidentally enter the air supply cavity 83 to be ejected at the outlet end 833.

[0156] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An electric planer (100), characterized in that, The utility model relates to a shavings collection device of electric planer, including: Machine body (10) is equipped with battery mounting structure (11); Battery assembly (20) includes battery (21) and the mounting piece (22) of detachable connection with battery (21), the mounting piece (22) is detachable connection with battery mounting structure (11) to set up battery (21) on machine body (10); Machine body (10) is configured with shavings channel (82), air supply cavity (83) and planer cavity (81);At least two shavings outlets (823) are configured on the shavings channel (82), and the shavings channel (82) is provided with an air inlet (825) for the airflow of the air supply cavity (83) to enter and a shavings inlet (824) for the shavings in the planer cavity (81) to enter; The electric planer (100) further comprises a plug (70), the plug (70) comprises: Cover body part (71), cover and set up in the shavings outlet (823) and located the shavings outlet (823) outside; The shavings blocking part (72) is integrally formed with the cover body part (71) and is blocked inside the shavings outlet (823); The shavings blocking part (72) comprises an integral blocking part (721) and a shavings blocking plate (722), the shavings blocking plate (722) extends away from the blocking part (721) and is used for blocking the air inlet (825);Both ends of the shavings channel (82) are provided with a shavings outlet (823), and the air inlet (825) and the shavings inlet (824) are located between the two opposite ends of the shavings channel (82); The shavings blocking part (72) further comprises a reversing plate (724) connected to the blocking part (721), the reversing plate (724) is arranged opposite to the shavings blocking plate (722) to define a shavings outlet channel (725) communicated with the shavings outlet (823), the shavings outlet channel (725) is provided with two reversing openings (726) located on the circumferential sides of the shavings blocking plate (722), and when the plug (70) is installed in one of the two shavings outlets (823), the shavings outlet channel (725) is communicated with the shavings inlet (824) through different reversing openings (726).

2. The electric planer (100) according to claim 1, characterized in that The battery mounting structure (11) is configured with a plug-in cavity (111), and the plug-in cavity (111) has a first opening (112) communicated with the outside of the machine body (10); The side of the mounting piece (22) away from the battery (21) is provided with a plug-in part (221), the plug-in part (221) is inserted into and connected to the plug-in cavity (111) through the first opening (112), and the battery (21) is at least partially located outside the plug-in cavity (111).

3. The electric planer (100) according to claim 2, characterized in that The inner contour of the plug-in cavity (111) matches the outer contour of the plug-in part (221).

4. The electric planer (100) according to claim 2, characterized in that The electric planer further comprises a Bluetooth communication module, the body (10) is provided with a first mounting seat (115), the Bluetooth communication module is mounted on the first mounting seat (115), and one surface of the first mounting seat (115) forms part of the inner cavity wall of the plug-in cavity (111).

5. The electric planer (100) according to claim 3, characterized in that The mounting piece (22) comprises a main body portion (222) oppositely arranged and connected with the plug-in portion (221), the plug-in cavity (111) is further provided with an avoiding opening (117) in communication with the outside of the body (10), and the avoiding opening (117) is continuous with the first opening (112); The side of the main body portion (222) away from the plug-in portion (221) is provided with a battery connecting portion (223) for mounting a battery (21), and the battery connecting portion (223) extends out of the plug-in cavity (111) through the avoiding opening (117).

6. The electric planer (100) according to claim 5, characterized in that The battery mounting structure (11) comprises a first surface (118) and a second surface (119) connected with each other, and the included angle between the first surface (118) and the second surface (119) is less than 180°; and the avoiding opening (117) and the first opening (112) are respectively arranged on the first surface (118) and the second surface (119).

7. The electric planer (100) according to claim 5, characterized in that The battery (21) is provided with an electric connecting seat for electric connection with the outside, the mounting piece (22) is provided with an avoiding notch (225) corresponding to the electric connecting seat, and the electric connecting seat penetrates through the avoiding notch (225) and extends into the plug-in cavity (111).

8. The electric planer (100) according to any one of claims 3-6, characterized in that, The two ends of the plug-in portion (221) in the width direction are provided with first protruding portions (2211), the inner wall of the plug-in cavity (111) is provided with clamping grooves (1111) corresponding to the positions of the first protruding portions (2211), the first protruding portions (2211) and the clamping grooves (1111) are clamped and matched, so that the mounting piece (22) is fixed in the plug-in cavity (111).

9. The electric planer (100) according to any one of claims 1 to 7, characterized in that The electric planer (100) further comprises an adjusting assembly (30) and a movable bottom plate (50) arranged at the bottom of the body (10); the adjusting assembly (30) comprises: A rotating handle (33) is arranged on the body (10), and the rotating handle (33) is configured to be rotatable relative to the body (10) and drive the movable bottom plate (50) to lift relative to the body (10); a plurality of first grooves (331) are arranged on the first end surface of the rotating handle (33) in the axial direction of the rotating handle (33) and are circumferentially spaced apart; A first spring (31) is arranged in a receiving hole (332) formed in the surface of the body (10) facing the first end surface, and a bearing portion (34) is arranged at one end of the first spring (31) close to the slot of the receiving hole (332); and An abutting piece (35) is arranged on the bearing portion (34) and can abut on each first groove (331) in turn under the action of the first spring (31) when the rotating handle (33) rotates. An inner diameter of the first spring (31) is greater than an outer contour size of the bearing part (34) and the abutting member (35), so that the abutting member (35) at least partially retracts into the first spring (31) when passing between adjacent first grooves (331).

10. The electric shaver (100) according to claim 9, characterized in that The bearing part (34) is configured as a second spring (32), and an outer diameter of the second spring (32) is smaller than an inner diameter of the first spring (31).

11. The electric planer (100) according to claim 10, characterized in that The abutting member (35) is configured as a ball, and a diameter of the abutting member (35) is greater than the inner diameter of the second spring (32) and smaller than the inner diameter of the first spring (31).

12. The electric shaver (100) according to claim 9, characterized in that An inner diameter of the accommodating hole (332) matches an outer diameter of the first spring (31).

13. The electric shaver (100) according to claim 9, characterized in that The rotating handle (33) is located on one side of the machine body (10). The movable bottom plate (50) comprises a bottom plate body (51) and a connecting member (52) connected to the bottom plate body (51), and an end of the connecting member (52) away from the bottom plate body (51) penetrates through the machine body (10) and is threadedly connected to the rotating handle (33). When the rotating handle (33) rotates relative to the machine body (10), the connecting member (52) drives the bottom plate body (51) to move along the axial direction of the connecting member (52).

14. The electric shaver (100) according to claim 13, characterized in that The rotating handle (33) comprises: a knob (333) threadedly connected to the end of the connecting member (52) away from the bottom plate body (51); and a rotating disc (334) arranged on the outer circumferential surface of the knob (333) and configured with a scale mark, and a surface of the rotating disc (334) facing the machine body (10) forms the first end surface.

15. The electric planer (100) according to any one of claims 1 to 7, characterized in that The electric planer (100) further comprises a circuit board assembly (60) and a static bottom plate (40) arranged at the bottom of the machine body (10). The machine body (10) is configured with an accommodating cavity (101), and the machine body (10) is provided with a first notch (1011) communicating with the accommodating cavity (101). The circuit board assembly (60) comprises: a heat dissipation box (61) arranged in the accommodating cavity (101) and made of heat conductive material; and a control circuit board (62) mounted on the heat dissipation box (61), and the control circuit board (62) is provided with a plurality of heating elements, and the heating elements are in contact with the heat dissipation box (61). The static bottom plate (40) is in contact with the heat dissipation box (61) through the first notch (1011).

16. The electric planer (100) according to claim 15, characterized in that The static bottom plate (40) is provided with a first protruding portion (41) penetrating through the first notch (1011) and abutting against the heat dissipation box (61); and / or The heat dissipation box (61) is provided with a second protruding portion penetrating through the first notch (1011) and abutting against the static bottom plate (40).

17. The electric planer (100) according to claim 16, characterized in that One side of the heat dissipation box (61) facing the control circuit board (62) is provided with a third protruding portion (611) abutting against the heating elements.

18. The electric shaver (100) according to claim 15, characterized in that The first notch (1011) is configured as a round hole or a square hole.

19. The electric shaver (100) according to claim 1, characterized in that The intersection position of the chip stopping plate (722) and the blocking part (721) is provided with a notch part (723), when the chip stopping plate (722) is arranged at the air inlet (825), the gas of the air inlet (825) flows into the space defined by the inner wall of the wood chip channel (82) and the chip stopping plate (722) through the notch part (723).

20. The electric shaver (100) according to claim 1, characterized in that At least one hollow part (7211) is arranged on the blocking part (721).

21. The electric planer (100) according to any one of claims 1-7, characterized in that, An air inlet (825) for the air outlet end (833) of the air supply cavity (83) is arranged on the wood chip channel (82), and the wood chip outlet (823) is used for the gas flow entering the wood chip channel (82) to drive the wood chips to be discharged from the wood chip channel (82). A fan (832) is arranged in the air supply cavity (83), and the part of the cavity wall near the air outlet end (833) in the cross section of the air supply cavity (83) along the axial direction of the fan (832) is constructed as a involute shape.

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