CN213990365U

CN213990365U - Electromagnetic shielding shell for direct-current brushless motor

Info

Publication number: CN213990365U
Application number: CN202022963851.XU
Authority: CN
Inventors: 张涛; 王瑶; 王文杰
Original assignee: CHINA STAR TECHNOLOGY ELECTRONICS Ltd
Current assignee: CHINA STAR TECHNOLOGY ELECTRONICS Ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-08-17
Anticipated expiration: 2030-12-12

Abstract

The utility model discloses an electromagnetic shield shell for DC brushless motor relates to motor technical field. The utility model discloses a cloudy protection machanism, positive protection machanism and four carry fixed establishment, cloudy protection machanism includes cloudy protecting sheathing, and two first rotation grooves have been seted up about its vertical central line symmetry in cloudy protecting sheathing outer cylinder middle part, and positive protection machanism includes positive protecting sheathing, and two second rotation grooves have been seted up about its vertical central line symmetry in positive protecting sheathing outer cylinder middle part. The utility model discloses a motor body work drives the axis of rotation and rotates, and then drives the flabellum and rotate to absorb the heat that motor body work produced, shift up along the spout through rotating the movable slide bar, mention the permanent magnet at last and drive motor body and remove, thereby make this direct current brushless motor for electromagnetic shield shell, it possesses the space not big, and convenient to use person uses, thereby increases the life of motor.

Description

Electromagnetic shielding shell for direct-current brushless motor

Technical Field

The utility model belongs to the technical field of the motor, especially, relate to an electromagnetic shield shell for DC brushless motor.

Background

The brushless DC motor is composed of motor main body and driver, it is a typical electromechanical integrated product, the brushless motor is a motor without brush and commutator, also called commutator motor, the rotor of the motor is stuck with magnetized permanent magnet, in order to detect the polarity of the rotor of the motor, a position sensor is installed in the motor, the driver is composed of power electronic device and integrated circuit, its function is to receive the starting, stopping and braking signals of the motor to control the starting, stopping and braking of the motor, receive the position sensor signal and positive and negative rotation signals to control the on-off of each power tube of the inverter bridge, generate continuous torque, receive speed command and speed feedback signal to control and adjust the rotating speed, provide protection and display, etc., electromagnetic shielding means that some electronic equipment does not interfere with other equipment, and is not influenced by other equipment, the electromagnetic shielding shell for the existing direct current brushless motor has the following defects:

1. the motor can give off certain heat at the during operation, and the electromagnetic shield shell for current direct current brushless motor can not in time give off the heat that the motor during operation sent to lead to the life reduction of motor.

2. The motor sometimes needs to be carried and fixed, the existing electromagnetic shielding shell for the direct current brushless motor is simple in structure and single in function, and a carrying device and a fixing device on the motor shell are separated, so that the motor shell occupies too large space and is inconvenient for a user to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electromagnetic shielding shell for a direct current brushless motor, which is characterized in that a clamping rod is driven to be clamped with a clamping groove by moving a male protective shell, then the male protective shell and a female protective shell are fixed by screwing a hexagon bolt, a rotating shaft is driven to rotate by the working of a motor body, a circular ring is driven to rotate by the rotating shaft, and then a fan blade is driven to rotate, so that heat generated by the working of the motor body is absorbed, and then the heat is discharged through a ventilation hole, a support rod is rotated to a proper angle, then the support rod is fixed by a fixed plate and a threaded hole, the slide rod is moved upwards along the sliding groove by rotating, then the fixed plate is driven to rotate to a proper position by rotating the slide rod, finally a permanent magnet is lifted to drive the motor body to move, so that the electromagnetic shielding shell for the direct, thereby increasing the service life of the motor.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an electromagnetic shield shell for DC brushless motor, carry fixed establishment including cloudy protection mechanism, positive protection mechanism and four, cloudy protection mechanism includes cloudy protecting sheathing, two first rotating grooves have been seted up about its vertical central line symmetry in cloudy protecting sheathing outer cylinder middle part, positive protection mechanism includes positive protecting sheathing, two second rotating grooves have been seted up about its vertical central line symmetry in positive protecting sheathing outer cylinder middle part, it includes two bracing pieces and slide bar to carry fixed establishment, cloudy protection mechanism joint is fixed in positive protection mechanism one end, carry fixed establishment and link firmly on cloudy protection mechanism and positive protecting sheathing outer cylinder, cloudy protecting sheathing is convenient for protect motor body first half section, and positive protecting sheathing is convenient for protect motor body second half section, and the bracing piece is convenient for support the slide bar.

Further, evenly close on the cloudy protecting sheathing outer cylinder and be connected with four hex bolts soon, and cloudy protecting sheathing outer wall open end has evenly seted up four joint grooves, four the hex bolts bottom runs through to four joint groove tops that correspond position department, is convenient for extrude fixedly with the joint pole of the slip joint in joint groove through hex bolts.

Furthermore, a rotating hole is formed in the middle of the other end of the female protective shell, a motor body is fixedly connected with the inside of the female protective shell in a clamped mode, the output end of the motor body extends to the outside of the other end of the female protective shell through the rotating hole, and the motor body is connected with external equipment through the rotating hole conveniently.

Furthermore, the open end of the outer wall of the male protective casing is uniformly and fixedly connected with four clamping rods, the four clamping rods are all in sliding clamping connection with four clamping grooves at corresponding positions, the middle part of one end of the male protective casing, which is far away from the open end, is rotatably connected with a rotating shaft, the surface of one end of the male protective casing, which is far away from the open end, is uniformly provided with a plurality of ventilation holes, the outer cylindrical surface of the rotating shaft is fixedly connected with a ring, the outer cylindrical surface of the ring is uniformly and fixedly connected with a plurality of fan blades, one end of the rotating shaft is fixedly connected with the other end of the motor body, the clamping rods are driven to be clamped with the clamping grooves by moving the male protective casing, then the male protective casing and the female protective casing are fixed by screwing the hexagonal bolts, the rotating shaft is driven to rotate by the work of the motor body, the rotating shaft is driven to rotate by the rotating shaft, and then the fan blades are driven to rotate, so that the heat generated by the work of the motor body is absorbed, and then discharged through the vent hole.

Furtherly, two bracing piece one end middle part has all seted up the spout along its vertical central line, and has linked firmly the round bar in the middle part of two bracing piece other ends, the round bar both ends run through to two bracing piece other ends that correspond position department to rotate and rotate in two first rotation grooves and the second that correspond position department and rotate inslot portion, be convenient for the slide bar through the spout and slide in its inside, be convenient for drive the bracing piece through the round bar and rotate.

Further, the slide bar rotates and slides inside the spout, and slide bar one end has linked firmly the round cap, the slide bar other end has linked firmly the permanent magnet, and has linked firmly the fixed plate on the slide bar middle part outer column face, the one end middle part of slide bar is kept away from to the fixed plate has seted up threaded hole, through pivoted support pole to suitable angle, then fixes it through fixed plate and screw hole, shifts up along the spout through rotating the removal slide bar, then rotates the slide bar and drives the fixed plate and rotate to suitable position, mentions the permanent magnet at last and drive motor body and remove.

The utility model discloses following beneficial effect has:

1. the utility model discloses a motor body work drives the axis of rotation and rotates, rotates through the axis of rotation and drives the ring rotation, and then drives the flabellum and rotate to absorb the heat that motor body work produced, and then discharge through the ventilation hole, thereby make this direct current brushless motor use electromagnetic shield shell, the heat that can send the motor during operation in time effluvium, thereby increase the life of motor.

2. The utility model discloses a rotation support pole to suitable angle, then fix it through fixed plate and screw hole, move the slide bar through rotating and shift up along the spout, then rotate the slide bar and drive the fixed plate and rotate to suitable position, mention the permanent magnet at last and drive motor body and remove to make this direct current brushless motor electromagnetic shield shell for, it possesses the space not big, and convenient to use person uses.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a diagram showing the positional relationship between the cathode protection mechanism and the motor body according to the present invention;

FIG. 3 is a schematic structural view of the female protection mechanism of the present invention;

FIG. 4 is a schematic structural view of the male protection mechanism of the present invention;

fig. 5 is a schematic structural view of the carrying and fixing mechanism of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a female protection mechanism; 101. a female protective housing; 102. a first rotating groove; 103. a hexagon bolt; 104. rotating the hole; 105. a clamping groove; 200. a male protection mechanism; 201. a male protective housing; 202. a vent hole; 203. a rotating shaft; 204. a circular ring; 205. a fan blade; 206. a clamping and connecting rod; 207. a second rotating groove; 300. a carrying and fixing mechanism; 301. a support bar; 302. a round bar; 303. a chute; 304. a slide bar; 305. a round cap; 306. a fixing plate; 307. a threaded hole; 308. a permanent magnet; 400. the motor body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention relates to an electromagnetic shielding case for a dc brushless motor, comprising a female protection mechanism 100, a male protection mechanism 200 and four carrying and fixing mechanisms 300, wherein the female protection mechanism 100 comprises a female protection housing 101, two first rotating grooves 102 are symmetrically disposed at the middle portion of the outer cylindrical surface of the female protection housing 101 about the vertical central line thereof, the male protection mechanism 200 comprises a male protection housing 201, two second rotating grooves 207 are symmetrically disposed at the middle portion of the outer cylindrical surface of the male protection housing 201 about the vertical central line thereof, the carrying and fixing mechanism 300 comprises two support rods 301 and a slide rod 304, the female protection mechanism 100 is fixed at one end of the male protection mechanism 200 in a clamping manner, the carrying and fixing mechanism 300 is fixedly connected to the outer cylindrical surfaces of the female protection mechanism 100 and the male protection mechanism 200, the front half section of a motor body 400 is conveniently protected by the female protection housing 101, the rear half section of the motor body 400 is conveniently protected by the male protection housing 201, the support bar 301 facilitates the support of the slide bar 304.

As shown in fig. 1-4, four hexagon bolts 103 are uniformly screwed and connected to the outer cylindrical surface of the female protective casing 101, four clamping grooves 105 are uniformly formed in the opening end of the outer wall of the female protective casing 101, the bottom ends of the four hexagon bolts 103 penetrate through the top ends of the four clamping grooves 105 at corresponding positions, a clamping rod 206 slidably clamped with the clamping grooves 105 is conveniently extruded and fixed by the hexagon bolts 103, a rotating hole 104 is formed in the middle of the other end of the female protective casing 101, a motor body 400 is clamped and fixed inside the female protective casing 101, the output end of the motor body 400 extends to the outside of the other end of the female protective casing 101 through the rotating hole 104, the motor body 400 is conveniently connected with external equipment through the rotating hole 104, the four clamping rods 206 are uniformly fixedly connected to the opening end of the outer wall of the male protective casing 201, and the four clamping rods 206 are all slidably clamped with the four clamping grooves 105 at corresponding positions, the open end one end middle part is kept away from to positive protecting sheathing 201 and is rotated and be connected with axis of rotation 203, positive protecting sheathing 201 is kept away from open end one end surface and has evenly seted up a plurality of ventilation holes 202, and link firmly ring 204 on the axis of rotation 203 outer cylinder, evenly linked firmly a plurality of flabellums 205 on the ring 204 outer cylinder, axis of rotation 203 one end links firmly in the motor body 400 other end, drive joint pole 206 and joint groove 105 joint through removing positive protecting sheathing 201, then fix positive protecting sheathing 201 and cloudy protecting sheathing 101 through screwing up hex bolts 103, it rotates to drive axis of rotation 203 to work through motor body 400, it rotates to drive ring 204 to rotate through axis of rotation 203, and then drive flabellum 205 and rotate, thereby absorb the heat that motor body 400 work produced, and then discharge through ventilation hole 202.

As shown in fig. 2 and fig. 4-5, the middle of one end of each of the two support rods 301 is provided with a sliding groove 303 along the vertical central line thereof, the middle of the other end of each of the two support rods 301 is fixedly connected with a circular rod 302, two ends of the circular rod 302 penetrate through the other ends of the two support rods 301 at the corresponding positions and rotate inside the two first rotating grooves 102 and the two second rotating grooves 207 at the corresponding positions, the sliding rod 304 is convenient to slide inside through the sliding groove 303, the support rod 301 is convenient to be driven to rotate through the circular rod 302, the sliding rod 304 is rotatably slid inside the sliding groove 303, one end of the sliding rod 304 is fixedly connected with a circular cap 305, the other end of the sliding rod 304 is fixedly connected with a permanent magnet 308, the outer cylindrical surface of the middle part of the sliding rod 304 is fixedly connected with a fixing plate 306, the middle of one end of the fixing plate 306 far away from the sliding rod 304 is provided with a threaded hole 307, the support rod 301 is rotated to a proper angle, and then the fixing plate 306 and the threaded hole 307 are used for fixing the fixing plate, the sliding rod 304 moves upwards along the sliding groove 303 by rotating, then the sliding rod 304 is rotated to drive the fixing plate 306 to rotate to a proper position, and finally the permanent magnet 308 is lifted to drive the motor body 400 to move.

The working principle is as follows:

the clamping rod 206 is driven to be clamped with the clamping groove 105 by moving the male protective shell 201, then the male protective shell 201 and the female protective shell 101 are fixed by screwing the hexagon bolt 103, the rotating shaft 203 is driven to rotate through the work of the motor body 400, the circular ring 204 is driven to rotate through the rotation of the rotating shaft 203, and then the fan blades 205 are driven to rotate, so that heat generated by the work of the motor body 400 is absorbed, and then the heat is discharged through the vent holes 202, the supporting rod 301 is rotated to a proper angle, then the fixing rod is fixed through the fixing plate 306 and the threaded hole 307, the sliding rod 304 is moved upwards along the sliding groove 303 through rotation, then the sliding rod 304 is rotated to drive the fixing plate 306 to rotate to a proper position, and finally the permanent magnet 308 is lifted to drive the motor body 400 to move.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an electromagnetic shield shell for DC brushless motor, includes that cloudy protection mechanism (100), positive protection mechanism (200) and four carry fixed establishment (300), its characterized in that: protection mechanism (100) includes cloudy protecting sheathing (101), cloudy protecting sheathing (101) outer cylinder middle part has seted up two first rotation grooves (102) about its vertical central line symmetry, positive protection mechanism (200) are including positive protecting sheathing (201), positive protecting sheathing (201) outer cylinder middle part has seted up two seconds about its vertical central line symmetry and has rotated groove (207), it includes two bracing pieces (301) and slide bar (304) to carry fixed establishment (300), cloudy protection mechanism (100) joint is fixed in positive protection mechanism (200) one end, it links firmly on cloudy protection mechanism (100) and positive protection mechanism (200) outer cylinder to carry fixed establishment (300).

2. The electromagnetic shielding shell for the brushless direct current motor according to claim 1, wherein four hexagon bolts (103) are evenly screwed and connected to the outer cylindrical surface of the female protective shell (101), four clamping grooves (105) are evenly formed in the open end of the outer wall of the female protective shell (101), and the bottom ends of the four hexagon bolts (103) penetrate through the top ends of the four clamping grooves (105) at the corresponding positions.

3. The electromagnetic shielding shell for the brushless DC motor according to claim 2, wherein a rotation hole (104) is formed in the middle of the other end of the female protection shell (101), the motor body (400) is fixed in the female protection shell (101) in a clamping manner, and the output end of the motor body (400) extends to the outside of the other end of the female protection shell (101) through the rotation hole (104).

4. The electromagnetic shielding shell for the brushless DC motor according to claim 3, wherein the outer wall opening end of the male protection shell (201) is uniformly connected with four clamping rods (206), and the four clamping rods (206) are slidably clamped with four clamping grooves (105) at corresponding positions, the middle part of the end of the male protection shell (201) far away from the opening end is rotatably connected with a rotation shaft (203), a plurality of ventilation holes (202) are uniformly formed in the surface of the end of the male protection shell (201) far away from the opening end, a circular ring (204) is fixedly connected on the outer cylindrical surface of the rotation shaft (203), a plurality of fan blades (205) are uniformly fixedly connected on the outer cylindrical surface of the circular ring (204), and one end of the rotation shaft (203) is fixedly connected to the other end of the motor body (400).

5. The electromagnetic shielding case for the brushless dc motor according to claim 4, wherein the middle part of one end of each of the two support rods (301) is provided with a sliding groove (303) along a vertical center line thereof, and the middle part of the other end of each of the two support rods (301) is fixedly connected with a round rod (302), and two ends of each round rod (302) penetrate through the other end of each of the two support rods (301) at the corresponding position and rotate inside the two first rotating grooves (102) and the two second rotating grooves (207) at the corresponding position.

6. The electromagnetic shielding shell for the brushless DC motor according to claim 5, wherein the sliding rod (304) slides inside the sliding slot (303) in a rotating manner, one end of the sliding rod (304) is fixedly connected with a round cap (305), the other end of the sliding rod (304) is fixedly connected with a permanent magnet (308), a middle outer cylindrical surface of the sliding rod (304) is fixedly connected with a fixing plate (306), and a middle portion of one end of the fixing plate (306) far away from the sliding rod (304) is provided with a threaded hole (307).