CN219445385U - Planing equipment - Google Patents

Abstract

The utility model relates to a planing equipment, including the shell, along the movable bottom plate and the quiet bottom plate of first direction interval arrangement, set up in movable bottom plate with plane sword between the quiet bottom plate, be used for the drive plane sword pivoted motor, and with the circuit board that the motor electricity is connected, have in the shell and communicate in external organism cavity and chip removal cavity, the motor with the circuit board all set up in organism cavity, plane sword place space and organism cavity all communicate in chip removal cavity, wherein, first direction is the direction of movement of planing equipment still includes: the metal heat conducting piece is in contact with the circuit board, the metal heat conducting piece is in contact with the static bottom plate, and heat at the circuit board can be conducted to the static bottom plate through the metal heat conducting piece. The planing equipment can better radiate the circuit board.

Description

Planing equipment

Technical Field

The utility model relates to the technical field of planing, in particular to planing equipment.

Background

The electric planer is a hand-held electric tool which is driven by a motor through a driving belt to carry out planing operation, is widely used in occasions such as house building, house decoration, woodworking workshops and the like, and is mainly used for carrying out the operations such as plane planing, chamfering, cutting and the like of various woods. In the related art, in order to enhance heat dissipation of components such as a circuit board in an electric planer, a space where the circuit board is located is communicated with a space where a motor is located in a large area, so that part of air flow in the air flow sucked by the motor flows through an area where the circuit board is located, and heat generated by the circuit board is taken away, however, the heat dissipation effect of the heat dissipation mode is poor.

Disclosure of Invention

Based on the above, the utility model provides planing equipment which can better radiate heat of a circuit board.

The planing equipment comprises a shell, a movable bottom plate, a fixed bottom plate, a planing tool, a motor and a circuit board, wherein the movable bottom plate and the fixed bottom plate are arranged along a first direction at intervals, the planing tool is arranged between the movable bottom plate and the fixed bottom plate, the motor is used for driving the planing tool to rotate, the circuit board is electrically connected with the motor, a machine body cavity and a chip removing cavity are arranged in the shell, the machine body cavity is communicated with the outside, the motor and the circuit board are both arranged in the machine body cavity, the space where the planing tool is located and the machine body cavity are both communicated with the chip removing cavity, and the first direction is the moving direction of the planing equipment and the planing equipment further comprises:

the metal heat conducting piece is in contact with the circuit board, the metal heat conducting piece is in contact with the static bottom plate, and heat at the circuit board can be conducted to the static bottom plate through the metal heat conducting piece.

In one embodiment, the metal heat conducting member encloses and forms a holding groove, the circuit board is mounted in the holding groove, and the circuit board is attached to at least a part of the groove wall of the holding groove.

In one embodiment, the metal heat conducting member is located at the inner side of the housing, the static base plate is located at the outer side of the housing, a through groove is formed in the housing, and a protruding portion penetrating through the through groove and contacting with the other one of the static base plate and the metal heat conducting member is formed in one of the static base plate and the metal heat conducting member.

In one embodiment, the static bottom plate is provided with a protruding portion protruding toward the metal heat conducting piece, and the metal heat conducting piece is provided with a concave portion in concave-convex fit with the protruding portion.

In one embodiment, the through groove is arranged on the center of the contact area of the shell and the static bottom plate.

In one embodiment, the metal heat conducting member is made of aluminum alloy.

In one embodiment, the planing device further comprises a blocking member disposed between the motor and the circuit board.

In one embodiment, one end of the housing along a second direction is provided with a motor air inlet communicated with the outside, the circuit board is located at one side of the peripheral surface of the motor, and the blocking piece at least covers the range of the circuit board in the second direction, wherein the second direction is the axial direction of the motor, and the second direction is perpendicular to the first direction.

In one embodiment, the blocking member extends from one end of the blocking member facing away from the air inlet of the motor along the second direction to be connected or abutted with the corresponding area of the housing.

In one embodiment, the blocking member extends from one end, which is close to the air inlet of the motor along the second direction, to a corresponding area of the housing, so as to separate a space where the motor is located from a space where the circuit board is located.

In one embodiment, the blocking member is in the shape of an arc protruding outward in the radial direction of the motor.

In one embodiment, the planing device comprises an impeller cover connected to the housing, an impeller is connected to one end of the motor, which is away from the motor air inlet along the second direction, the impeller cover is enclosed on the outer side of the impeller, and one end of the impeller cover, which is away from the motor air inlet along the second direction, extends to be connected with or abutted against the housing.

In one embodiment, the impeller cover extends to be connected with the blocking piece into a whole along one end, close to the motor air inlet, of the second direction.

In one embodiment, the impeller cover includes a first section and a second section which are sequentially arranged along an airflow flowing path, the airflow sucked through the motor air inlet can sequentially flow into the chip removing cavity through the first section and the second section, a gap between the first section and the impeller is d1, and a gap between the second section and the impeller is d2, wherein d2 is greater than d1, so that the impeller cover is in a volute shape.

In one embodiment, one of the impeller cover and the inner wall of the casing is provided with a limit groove, and the other is correspondingly provided with a limit post which is clamped into the limit groove to limit the rotation of the impeller cover.

In one embodiment, the chip removing chamber is provided with a first opening communicated with the space where the planing tool is located and a second opening communicated with the machine body chamber, the planing equipment comprises a blocking piece blocked at one end of the chip removing chamber, the blocking piece comprises a blocking part extending into the chip removing chamber, the blocking part is blocked at the second opening, an air inlet gap is formed between the blocking part and the chamber wall of the chip removing chamber, and air sucked through the motor can flow into the chip removing chamber through the air inlet gap.

Above-mentioned planing equipment has set up metal heat conduction spare, and metal heat conduction spare and circuit board contact, and simultaneously, metal heat conduction spare and quiet bottom plate contact, the heat that circuit board department produced can be conducted to metal heat conduction spare, and then conduct to quiet bottom plate to give off to external environment through quiet bottom plate, in order to realize the heat dissipation to the circuit board. Through better metal heat conduction spare direct contact circuit board and quiet bottom plate of heat conductivity, can be directly through the heat dissipation of heat conduction mode faster with circuit board department to external environment, the radiating effect is better.

Drawings

FIG. 1 is a schematic view of the overall structure of a planing device according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the planing device of FIG. 1;

FIG. 3 is a schematic view of the motor and circuit board components of the planing device of FIG. 1;

FIG. 4 is a schematic view of the housing (partial area), circuit board, stationary base plate, etc. of the planing device of FIG. 1;

fig. 5 is a front view (with parts omitted) of a planing device in an embodiment of the present application;

FIG. 6 is an elevation view of the impeller shroud and impeller of the planing device of FIG. 5;

fig. 7 is a schematic illustration of the construction of the closure element of the planing device of fig. 1.

Reference numerals:

the chip removing machine comprises a shell 100, a machine body cavity 110, a motor installation space 111, a circuit board installation space 112, a chip removing cavity 120, a first opening 121, a second opening 122, a planer tool installation space 130, a motor air inlet 140, a through groove 150, an air inlet gap 160 and a limit post 170;

a movable base plate 210, a stationary base plate 220, and a projection 221;

planer 310, motor 320, impeller 321, circuit board 330, battery pack 340, adjusting knob 350, handle 360;

a blocking member 400;

a metal heat conductive member 500;

impeller cover 600, first section 610, second section 620, and limiting groove 630;

a blocking member 700, a shielding portion 710, and a locking portion 720.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, 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", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

FIG. 1 is a schematic view of the overall structure of a planing device according to an embodiment of the present application; FIG. 2 is a cross-sectional view of the planing device of FIG. 1; FIG. 3 is a schematic view of the motor and circuit board components of the planing device of FIG. 1;

fig. 4 is a schematic view of the construction of the housing (partial area), circuit board, stationary base plate, etc. of the planing device of fig. 1.

Referring to fig. 1 to 4, the planing device according to an embodiment of the present utility model includes a housing 100, a movable base 210, a stationary base 220, a planing tool 310, a motor 320, a circuit board 330 and a metal heat conducting member 500. The movable base plate 210 and the static base plate 220 are arranged at intervals along the first direction, and the planing tool 310 is arranged between the movable base plate 210 and the static base plate 220. The circuit board 330 is electrically connected to the motor 320, and the motor 320 is used for driving the planing tool 310 to rotate. The casing 100 has a body chamber 110 and a chip removing chamber 120, which are connected to the outside, the motor 320 and the circuit board 330 are both disposed in the body chamber 110, and the space where the planer 310 is located and the body chamber 110 are both connected to the chip removing chamber 120. The metal heat conductive member 500 is in contact with the circuit board 330, and the metal heat conductive member 500 is in contact with the stationary base plate 220, and heat at the circuit board 330 can be conducted to the stationary base plate 220 through the metal heat conductive member 500. Wherein the first direction is the direction of movement of the planing device.

The planing device is provided with the metal heat conducting piece 500, and is in contact with the circuit board 330, meanwhile, the metal heat conducting piece 500 is in contact with the static bottom plate 220, and heat generated at the circuit board 330 can be conducted to the metal heat conducting piece 500, further conducted to the static bottom plate 220 and dissipated to the external environment through the static bottom plate 220, so that heat dissipation of the circuit board 330 is realized. The metal heat conducting piece 500 with good heat conductivity is in direct contact with the circuit board 330 and the static bottom plate 220, so that heat at the circuit board 330 can be directly and rapidly dissipated to the external environment in a heat conduction mode, and the heat dissipation effect is good.

Specifically, in the view of the drawing, the left-right direction is the first direction, that is, the moving direction of the planing device. The space where the plane blade 310 is located is the plane blade installation space 130 shown in fig. 4, the space where the motor 320 is located is the motor installation space 111, and the space where the circuit board 330 is located is the circuit board installation space 112. In view of the drawing, the motor installation space 111 is located on the right side of the planer tool installation space 130, which is partitioned by a partial region of the housing 100, and the circuit board installation space 112 is located on the right side of the motor installation space 111.

For easy understanding, the main structure and working principle of the planing device will be briefly described.

Referring to fig. 1 to 4, the movable base plate 210, the stationary base plate 220 and the planing tool 310 are all positioned at the bottom end of the whole planing device. A battery pack 340 in the planing device is electrically connected to the motor 320 and the circuit board 330 for providing power. The planing device includes a handle 360, and an operator can grasp the handle 360 to move the planing device left and right. The motor 320 drives the planing tool 310 to rotate through the synchronous belt, and when the planing device moves leftwards and rightwards relative to the workpiece to be planed, the planing tool 310 can carry out planing processing on the workpiece to be planed. The adjusting knob 350 is coupled to the movable base plate 210, and the position of the movable base plate 210 in the up-down direction can be adjusted by rotating the adjusting knob 350, thereby bringing the planing tool 310 into contact with or out of contact with the workpiece to be planed.

Fig. 5 is a front view (part of components omitted) of the planing device in an embodiment of the present application.

The chip removing chamber 120 extends along the front-rear direction, both front and rear ends of the chip removing chamber are open, the blocking piece 700 is blocked at one opening, for example, in the embodiment shown in the drawings, the blocking piece 700 is blocked at the front opening, and the chips in the chip removing chamber 120 can be discharged through the rear opening. When the motor 320 rotates the impeller 321 connected to the output shaft thereof, the external air flow is sucked into the body chamber 110 and then flows into the chip removing chamber 120, and the chips generated by planing at the planing tool 310 are sucked upwards into the chip removing chamber 120, flow backwards in the chip removing chamber 120 together with the air flow, and are discharged from the rear end opening (refer to the air flow and the chip flow direction shown in fig. 5).

The above matters about the main structure and the working principle of the planing device are basically the prior art, so only the above simple description is provided, and the detailed description of the specific structure is omitted, and the description of the related matters of the utility model point of the present application is started below.

Referring to fig. 3 to 4, in some embodiments, the metal heat conducting member 500 encloses a receiving slot, the circuit board 330 is installed in the receiving slot, and the circuit board 330 is at least partially attached to a slot wall of the receiving slot.

Specifically, the metal heat conductive member 500 encloses a receiving groove forming an opening at the top through which the circuit board 330 can be placed in the receiving groove. The circuit board 330 is attached to at least a part of the groove wall of the accommodating groove, so that heat generated at the circuit board 330 can be transferred to the groove wall of the accommodating groove and then to the static bottom plate 220. Preferably, the shape and size of the accommodating groove are matched with those of the circuit board 330, and the side wall and the bottom wall of the circuit board 330 are attached to corresponding areas on the groove wall of the accommodating groove, so that the heat exchange area is increased, and the heat conduction efficiency is improved.

Referring to fig. 3 to 4, in some embodiments, the metal heat conducting member 500 is located at the inner side of the housing 100, the static base plate 220 is located at the outer side of the housing 100, the housing 100 is provided with the through slot 150, and one of the static base plate 220 and the metal heat conducting member 500 is provided with the protrusion 221 penetrating through the through slot 150 and contacting the other.

Specifically, in the embodiment shown in the drawings, the stationary base plate 220 is provided with a protrusion 221 protruding toward the metal heat conductive member 500, and the protrusion 221 is in contact with the bottom surface of the metal heat conductive member 500 through the through groove 150. Of course, in other embodiments, a protrusion 221 protruding toward the static base plate 220 may be provided on the bottom surface of the metal heat conducting member 500, and the protrusion 221 may contact the top surface of the static base plate 220 through the through groove 150.

Preferably, in some embodiments, the static base plate 220 is provided with a protrusion 221 protruding toward the metal heat conducting member 500, and the metal heat conducting member 500 is provided with a recess that is in concave-convex engagement with the protrusion 221. The static bottom plate 220 is matched with the metal heat conducting piece 500 in a concave-convex manner, so that the heat exchange area between the static bottom plate and the metal heat conducting piece can be increased, and the heat conduction efficiency is improved.

Referring to fig. 3-4, in some embodiments, a through slot 150 is provided in the housing 100 at a center of the contact area with the stationary plate 220.

Specifically, the aforementioned through slot 150 is provided in the center of the region of the housing 100 above the stationary base plate 220. Compared with the through slot 150 formed at the end of the housing 100, in this embodiment, the periphery of the through slot 150 is of a solid structure, which can inhibit the strength of the housing 100 from being reduced too much, and make the structure more firm and stable. Preferably, the through slots 150 are arranged in a circular shape, which reduces stress concentrations.

Preferably, in some embodiments, the metal heat conducting member 500 is made of aluminum alloy, which not only conducts heat faster but also has lighter weight.

In addition, if there are chips raised during shaving in the external environment, the chips may be entrained in the sucked air flow during operation of the motor 320, and if the sucked chips strike the circuit board when the sucked chips flow through the area of the circuit board, the components on the circuit board may be damaged.

Referring to fig. 2 and 3, in some embodiments, the planing device further includes a blocking member 400, wherein the blocking member 400 is disposed between the motor 320 and the circuit board 330.

In this embodiment, the blocking member 400 is disposed between the motor 320 and the circuit board 330, so that if debris in the external environment is sucked into the body chamber 110 along with the airflow by the motor 320, the blocking member 400 can block the debris from striking the circuit board 330, so that the components on the circuit board 330 are not damaged easily.

Referring to fig. 2 and 3, in some embodiments, a motor air inlet 140 communicating with the outside is provided at one end of the housing 100 along a second direction, the circuit board 330 is located at one side of the peripheral surface of the motor 320, and the blocking member 400 covers at least the range of the circuit board 330 along the second direction, wherein the second direction is the axial direction of the motor 320, and the second direction is perpendicular to the first direction.

Specifically, the second direction is the front-rear direction shown in the drawings. The rear end portion of the housing 100 is hollowed out to form the motor air inlet 140, and when the motor 320 works, external air flow is sucked into the body cavity 110 from the motor air inlet 140 and flows forward. The circuit board 330 is located on the right side of the motor 320, and the blocking member 400 covers at least the range of the circuit board 330 in the front-rear direction, that is, the rear end of the blocking member 400 is located on the rear side of the rear end of the circuit board 330 or is flush with the rear end of the circuit board 330; the front end of the blocking member 400 is located at the front side of the front end of the circuit board 330 or is flush with the front end of the circuit board 330. Thus, when the air flows forward in the body cavity 110, the blocking member 400 can form a better shielding effect on the range of the circuit board 330, and the blocking effect on the chips can be better.

Further, in some embodiments, an end of the blocking member 400 facing away from the motor air inlet 140 in the second direction extends to connect or abut with a corresponding region of the housing 100.

Specifically, in view of the drawing, one end of the blocking member 400 facing away from the motor air inlet 140 along the second direction is the front end of the blocking member 400. The front end of the blocking member 400 extends forward to connect or abut with the front end inner wall of the housing 100. Therefore, the front region of the circuit board 330 can be better shielded, and the fragments sucked from the air inlet 140 are prevented from falling onto the circuit board 330 from the regions. In addition, after a small amount of chips generated by planing at the planing tool 310 are sucked up into the chip removing chamber 120, if a part of chips enters the area around the impeller 321 in the motor installation space 111 from the chip removing chamber 120, the movement range of the chips can be limited because the front end of the blocking member 400 extends forward to be connected with or abutted against the front end inner wall of the housing 100, so that the chips are not easy to reach the circuit board 330.

Further, in some embodiments, an end of the blocking member 400 adjacent to the motor air inlet 140 along the second direction extends to connect or abut with a corresponding area of the housing 100, so as to separate the space where the motor 320 is located from the space where the circuit board 330 is located.

Specifically, in view of the drawing, an end of the blocking member 400 along the second direction, which is close to the motor air inlet 140, is a rear end of the blocking member 400. The rear end of the blocking member 400 extends rearward to be connected to the rear end inner wall of the housing 100. In this way, the rear region of the circuit board 330 can be better shielded, and the fragments are prevented from falling onto the circuit board 330 from these regions. In the present embodiment, the front end of the blocking member 400 is connected to the front end inner wall of the housing 100, and the rear end of the blocking member 400 is connected to the rear end inner wall of the housing 100, thereby completely separating the motor installation space 111 from the circuit board installation space 112. After the arrangement, the air flow can only wrap up and clamp the fragments to flow in the range of the motor installation space 111, but cannot reach the circuit board installation space 112, so that the shielding effect is better. In addition, when the motor installation space 111 is completely separated from the circuit board installation space 112, all the air flow sucked from the motor air inlet 140 flows into the chip removal chamber 120 and is not split into the circuit board installation space 112, and the sucked air flow is used for sucking chips generated by planing at the planing tool 310, so that the suction efficiency is higher.

Referring to fig. 3, in some embodiments, the barrier 400 is arcuate in shape protruding radially outward of the motor 320.

Specifically, the blocking member 400 may not need to enclose the motor 320 for a complete circle, and may only need to be disposed on a side of the motor 320 close to the circuit board 330 to perform a blocking function. Of course, it is preferable that the blocking member 400 is directly provided in a ring shape to enclose the outside of the motor 320 for a full circle, and thus the blocking effect is more excellent. The barrier 400 may be fixedly mounted to the motor 320 or may be fixedly mounted to the housing 100 or other component. When the blocking member 400 is arranged in an arc shape protruding outwards along the radial direction of the motor 320, the shape of the motor 320 can be well matched, the space occupied by the blocking member 400 is reduced as much as possible, and the shielding effect is better.

Of course, in other embodiments, the barrier 400 may be provided in a flat plate or other shape.

Referring to fig. 3, in some embodiments, the planing device includes an impeller cover 600 connected to the casing 100, an impeller 321 is connected to an end of the motor 320 facing away from the motor air inlet 140 along the second direction, the impeller cover 600 is enclosed on the outer side of the impeller 321, and an end of the impeller cover 600 facing away from the motor air inlet 140 along the second direction extends to be connected or abutted with the casing 100.

Specifically, the impeller 321 is disposed at the front end of the motor 320 and is coaxially connected to the output shaft of the motor 320. The end of the impeller cover 600 facing away from the motor air inlet 140 along the second direction is the front end thereof, and the front end of the impeller cover 600 extends forward to be connected or abutted with the front end inner wall of the housing 100. Similar to the above-described embodiment, when the blocking member 400 extends forward to be connected to or abutted against the front end inner wall of the casing 100, when the impeller cover 600 is disposed as such, a small amount of chips generated by planing of the planing tool 310 are sucked upward into the chip removing chamber 120, and if the chips entering the chip removing chamber 120 enter the surrounding area of the impeller 321 in the motor mounting space 111, since the front end of the impeller cover 600 extends forward to be connected to or abutted against the front end inner wall of the casing 100, the movement range of the chips can be limited, so that the chips can move only between the impeller cover 600 and the front end inner wall of the casing 100 as much as possible, and the chips are not easy to reach the circuit board 330.

Referring to fig. 3, in some embodiments, an end of the impeller cup 600 adjacent to the motor intake 140 in the second direction extends to be integral with the barrier 400.

Specifically, an end of the impeller cover 600 adjacent to the motor air inlet 140 along the second direction is a rear end thereof, that is, the rear end of the impeller cover 600 extends rearward to be integrally connected with the blocking member 400. Thus, similar to the forward extension of the blocking member 400 to the front end inner wall of the housing 100 in the previous embodiment, the blocking can be achieved in a wider range, and the falling of the chips to the circuit board 330 can be better suppressed.

In the above embodiment, the rear end of the impeller cover 600 extends rearward to be integrally connected with the stopper 400, and it may be considered that the stopper 400 is formed by the rear end of the impeller cover 600 extending rearward. In other embodiments, the blocking member 400 may be formed by extending the part forward from the inner wall of the rear end of the housing 100 or the blocking member 400 may be formed by extending the part backward from the inner wall of the front end of the housing 100.

Fig. 6 is an elevation view of the impeller shroud and impeller of the planing device of fig. 5.

Referring to fig. 4 to 6, in some embodiments, the impeller cover 600 includes a first section 610 and a second section 620 arranged in sequence along the airflow flow path, and the airflow sucked through the motor air inlet 140 can flow into the chip removing chamber 120 through the first section 610 and the second section 620 in sequence, where a gap between the first section 610 and the impeller 321 is d1, and a gap between the second section 620 and the impeller 321 is d2, where d2 > d1, so that the impeller cover 600 has a volute shape.

Specifically, when the impeller 321 rotates synchronously with the output shaft of the motor 320, a rotating air flow is formed, which flows into the chip ejection chamber 120 through the first section 610 and the second section 620 in sequence. After a small amount of chips generated by planing by the planing tool 310 are sucked into the chip removing chamber 120 upwards, if the chips enter the area around the impeller 321 in the motor installation space 111 from the chip removing chamber 120, the chips are entrained by the rotating airflow around the impeller 321 and flow into the chip removing chamber 120, and finally are discharged to the external environment. When d2 and d1 satisfy the aforementioned relationship, the air flow flowing at the second section 620 is more distant from the center of rotation of the impeller 321, and is more subject to centrifugal force, and more likely to throw the chips back into the chip ejection chamber 120, but less likely to enter the next cycle to rotate all the way around the impeller 321.

Referring to fig. 4 to 6, in some embodiments, one of the impeller cover 600 and the inner wall of the casing 100 is provided with a limit groove 630, and the other is correspondingly provided with a limit post 170, and the limit post 170 is snapped into the limit groove 630 to limit the rotation of the impeller cover 600.

Specifically, in the embodiment shown in the drawings, a boss extending outwards from the outer wall of the impeller cover 600 is provided with a limit groove 630, and a limit post 170 is provided at a corresponding position on the casing 100, and the limit post 170 is clamped into the limit groove 630 to limit the impeller cover 600. Of course, in other embodiments, the positions of the stop posts 170 and stop slots 630 may be interchanged. The spacing posts 170 and the spacing slots 630 may also be added in pairs. When the plurality of sets of the limit posts 170 and the limit grooves 630 are provided, the position of the impeller cover 600 can be basically fixed, and other structures are not required to be arranged between the impeller cover 600 and the casing 100 to fix the two.

Fig. 7 is a schematic illustration of the construction of the closure element of the planing device of fig. 1.

Referring to fig. 2, 4, 5 and 7, in some embodiments, the chip removing chamber 120 has a first opening 121 communicating with a space where the planing tool 310 is located, and a second opening 122 communicating with the body chamber 110, the planing device includes a blocking member 700 blocked at one end of the chip removing chamber 120, the blocking member 700 includes a blocking portion 710 extending into the chip removing chamber 120, the blocking portion 710 is blocked at the second opening 122, and an air inlet gap 160 is provided between the blocking portion 710 and a chamber wall of the chip removing chamber 120, and an air flow sucked through the motor 320 can flow into the chip removing chamber 120 through the air inlet gap 160.

Specifically, the chip ejection chamber 120 has a first opening 121 communicating with the planer tool mounting space 130, and a second opening 122 communicating with the motor mounting space 111. The blocking member 700 may be clamped at the outer wall of the chip removing chamber 120 by the clamping portion 720 to achieve the detachable installation. The shielding part 710 is located at the opposite side of the clamping part 720, the shielding part 710 extends into the chip removing chamber 120 and is located in the area where the second opening 122 is located, and the shielding part 710 does not completely block the second opening 122, but forms an air inlet gap 160 with the inner wall of the chip removing chamber 120. As shown in fig. 2, the air flow sucked from the motor air inlet 140 flows from the rear to the front, reaches the periphery of the impeller 321, bends from the second opening 122, flows into the air inlet gap 160, bends again, and flows into the chip discharging chamber 120. The chips generated by planing at the planing tool 310 are sucked upward by the suction force of the air flow, and flow into the chip removing chamber 120 from the first opening 121, after which the air flow entrains the chips and flows out from front to rear in the chip removing chamber 120.

In this embodiment, since the shielding portion 710 is disposed at the second opening 122, shielding can be formed between the motor installation space 111 and the chip removing chamber 120, so as to prevent chips generated during planing by the planing tool 310 from entering the motor installation space 111 due to turbulence of air flow after being pumped into the chip removing chamber 120.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (16)

1. The utility model provides a planing equipment, includes shell (100), along first direction interval movable floor (210) and quiet bottom plate (220) of arranging, set up in movable floor (210) with plane sword (310) between quiet bottom plate (220), be used for driving plane sword (310) pivoted motor (320), and with circuit board (330) that motor (320) electricity is connected, have in shell (100) and communicate in organism cavity (110) and chip removal cavity (120) of external world, motor (320) with circuit board (330) all set up in organism cavity (110), plane sword (310) place space and organism cavity (110) all communicate in chip removal cavity (120), wherein, first direction is the direction of movement of planing equipment, its characterized in that still includes:

and the metal heat conducting piece (500) is in contact with the circuit board (330), the metal heat conducting piece (500) is in contact with the static base plate (220), and heat at the circuit board (330) can be conducted to the static base plate (220) through the metal heat conducting piece (500).

2. The planing device according to claim 1, wherein the metal heat conductive member (500) is surrounded to form a receiving groove, the circuit board (330) is mounted in the receiving groove, and the circuit board (330) is attached to at least a partial area of a groove wall of the receiving groove.

3. Planing device according to claim 1, wherein the metal heat conducting member (500) is located inside the casing (100), the static base plate (220) is located outside the casing (100), the casing (100) is provided with a through groove (150), and one of the static base plate (220) and the metal heat conducting member (500) is provided with a protrusion (221) penetrating the through groove (150) and contacting the other.

4. A planing device according to claim 3, wherein said stationary base plate (220) is provided with said protruding portion (221) protruding toward said metal heat conducting member (500), and said metal heat conducting member (500) is provided with a recessed portion for being in concave-convex engagement with said protruding portion (221).

5. A planing device according to claim 3, wherein the through slot (150) is provided in the casing (100) at a central position of a contact area with the stationary base plate (220).

6. Planing device according to claim 1, wherein the metal heat conducting member (500) is made of an aluminum alloy.

7. The planing device according to claim 1, further comprising a blocking member (400), the blocking member (400) being disposed between the motor (320) and the wiring board (330).

8. The planing device according to claim 7, wherein one end of the housing (100) along a second direction is provided with a motor air inlet (140) communicated with the outside, the circuit board (330) is located at one side of the peripheral surface of the motor (320), the blocking member (400) covers at least the range of the circuit board (330) in the second direction, wherein the second direction is an axial direction of the motor (320), and the second direction is perpendicular to the first direction.

9. Planing device according to claim 8, wherein an end of the blocking member (400) facing away from the motor air intake (140) in the second direction extends to connect or abut with a corresponding area of the casing (100).

10. Planing device according to claim 9, wherein the end of the blocking member (400) adjacent to the motor inlet (140) in the second direction extends to connect with a corresponding area of the casing (100) so as to separate the space in which the motor (320) is located from the space in which the circuit board (330) is located.

11. Planing device according to any one of claims 8 to 10, wherein the blocking member (400) has an arc shape protruding outwards in a radial direction of the motor (320).

12. Planing device according to claim 8, comprising an impeller cover (600) connected to the housing (100), wherein an impeller (321) is connected to the motor (320) at an end facing away from the motor air inlet (140) in the second direction, wherein the impeller cover (600) is arranged around the outside of the impeller (321), and wherein the impeller cover (600) extends to be connected to or abut against the housing (100) at an end facing away from the motor air inlet (140) in the second direction.

13. Planing device according to claim 12, wherein the end of the impeller cup (600) adjacent to the motor air intake (140) in the second direction extends to be integral with the blocking member (400).

14. Planing machine according to claim 12, wherein the impeller housing (600) comprises a first section (610) and a second section (620) arranged in succession along the airflow flow path, the airflow sucked in through the motor intake (140) being able to flow into the chip removal chamber (120) in succession through the first section (610) and the second section (620), the gap between the first section (610) and the impeller (321) being d1, the gap between the second section (620) and the impeller (321) being d2, d2 > d1, so that the impeller housing (600) is volute-shaped.

15. Planing device according to claim 12, wherein one of the impeller cup (600) and the inner wall of the casing (100) is provided with a limit groove (630), the other one is provided with a limit post, which is snapped into the limit groove (630) to limit the rotation of the impeller cup (600).

16. Planing machine according to claim 1, wherein the chip removal chamber (120) has a first opening (121) communicating with the space in which the planing tool (310) is located, and a second opening (122) communicating with the machine body chamber (110), the planing machine comprising a closure member blocked at one end of the chip removal chamber (120), the closure member comprising a shielding portion (710) projecting into the chip removal chamber (120), the shielding portion (710) being shielded at the second opening (122), and an air inlet gap (160) being provided between the shielding portion (710) and the chamber wall of the chip removal chamber (120), the air flow sucked through the motor (320) being able to flow into the chip removal chamber (120) through the air inlet gap (160).