CN211352583U

CN211352583U - Motor controller

Info

Publication number: CN211352583U
Application number: CN201921241552.6U
Authority: CN
Inventors: 朱清乐; 张永宝
Original assignee: Nidec Motor Qingdao Corp
Current assignee: Nidec Motor Qingdao Corp
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-08-25
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a motor controller, belonging to the technical field of motor controllers; its technical scheme main points are including the casing and locate the inside circuit board of casing, the back fixedly connected with heat conduction strip of circuit board, and the laminating of one side that the circuit board was kept away from to the heat conduction strip is on the casing inner wall. The utility model provides a heat abstractor on the common motor control too fat, it is big to occupy the space, is difficult for the problem of installation and maintenance, has reached under the radiating prerequisite of not influencing, reduces the space that heat abstractor occupied, and simple structure, easy to assemble and the effect of maintaining.

Description

Motor controller

Technical Field

The utility model relates to a machine controller technical field, more specifically the saying so, it relates to a machine controller.

Background

The motor controller is an integrated circuit which controls the motor to work according to the set direction, speed, angle and response time through active work.

Reference may now be made to the chinese patent application publication No. CN107482991A, which discloses a motor controller cooling device and a motor controller cooling system, and relates to the technical field of motor controllers. The motor controller cooling device comprises a third shell, a second shell, a first shell, water cooling equipment and a water pipe; one end of the second shell is detachably connected with the first shell, the other end of the second shell is connected with the third shell, and the first shell, the second shell and the third shell form an accommodating cavity for accommodating the motor controller; the water cooling equipment is arranged on the third shell and located in the containing cavity, one end of the water pipe is communicated with a water outlet of the water cooling equipment, the other end of the water pipe is communicated with a water inlet of the water cooling equipment, and at least part of the water pipe extends into the containing cavity corresponding to the first shell.

The cooling system in the technology is too complex, high in manufacturing cost and large in occupied area, and after the cooling system is installed in the controller shell, the space inside the shell can be compressed, so that the cooling system is not easy to maintain and install.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a motor controller, it can be derived the heat that the controller produced through heat conduction strip, reaches radiating purpose, and it is littleer to occupy the space, simple structure, the effect of convenient maintenance and installation.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a motor controller, includes the casing and locates the inside circuit board of casing, the back fixedly connected with heat conduction strip of circuit board, and the laminating of one side that the circuit board was kept away from to the heat conduction strip is on the casing inner wall.

Through adopting above-mentioned technical scheme, the inner wall laminating of heat conduction strip and circuit board and casing, the controller is at the in-process of work, the circuit board can produce certain heat, the heat that the circuit board produced can transmit to the casing through the heat conduction strip on, then give off the external world through the casing, thereby reach radiating purpose, moreover, the steam generator is simple in structure, the installation of being convenient for, and when the radiating effect reduces, can change the heat conduction strip, so the heat conduction strip can play the radiating purpose to the controller, and it is little to occupy space.

The utility model discloses further set up to: the shell comprises a first shell and a second shell, and the ends of the first shell and the second shell are attached together;

the outer walls of the first shell and the second shell fitting part are respectively fixedly connected with a fixing block and a convex block, the fixing block and the convex block are fitted together, a bolt is inserted into the fixing block, the tail end of the bolt penetrates through the convex block and the tail end of the bolt, a nut is connected with the tail end of the bolt in a threaded mode, and the nut is fitted on the side wall of the convex block.

Through adopting above-mentioned technical scheme, the casing includes first shell and second shell, makes the casing can part, is convenient for install the circuit board into the casing in, and first shell and second shell pass through the bolt-in and be in the same place, can make stable the linking together between them, can not easy emergence separation, makes the casing can play the effect of protection to the circuit board.

The utility model discloses further set up to: the fixed block is fixedly connected with a positioning column, and the convex block is provided with a positioning groove;

the fixed block is provided with a through hole which penetrates through the fixed positioning column and the positioning groove, and the bolt is inserted into the through hole.

Through adopting above-mentioned technical scheme, when linking first shell and second shell bolt together, need fixed block and lug to align, just can make first shell and second shell fixed together, fixedly connected with reference column has seted up the constant head tank on the lug, when installing first shell and second shell together, the reference column gets into the constant head tank in, can make the laminating of first shell and second shell more accurate together, has improved the efficiency of installation.

The utility model discloses further set up to: the heat conducting strips are attached to the side wall of the second shell, a plurality of heat dissipation plates are fixedly connected to the outer wall of the second shell, and the heat dissipation plates are evenly distributed on the side wall of the second shell.

Through adopting above-mentioned technical scheme, convex heating panel can increase the area of contact of second shell and external environment, and when the heat transfer on the heat conduction strip is with the circuit board was to the second shell, convex heating panel can increase the radiating effect of second shell to improve radiating speed, make the heat on the circuit board can be transmitted to the external world.

The utility model discloses further set up to: the edges of the end parts of the heat dissipation plate, which are far away from the second shell, are provided with round corners.

Through adopting above-mentioned technical scheme, there is sharp edge on the heating panel, then when the equipment controller, sharp edge causes the fish tail to the workman easily, so the fillet replaces sharp edge, makes the heating panel not have the edge, can prevent workman's fish tail, reduces the existence of potential safety hazard.

The utility model discloses further set up to: and the inner wall of the second shell is provided with a containing groove capable of containing the heat conducting strip.

Through adopting above-mentioned technical scheme, the heat conduction strip is installed on the circuit board, so the heat conduction strip along with the circuit board motion, when the installation circuit board, the heat conduction strip can advance to go into the holding tank, then can play certain positioning action to the mounted position of circuit board to can fix a position fast when making the installation circuit board, improve the speed of installation circuit board.

The utility model discloses further set up to: a groove is formed in the back face of the circuit board, and the heat conducting strip is installed in the groove.

Through adopting above-mentioned technical scheme, the position that the heat conduction strip was installed on the circuit board needs to align with the heating circuit component on the circuit board, but at the in-process of installation, the position of heat conduction strip installation takes place the skew easily, influence the effect of heat conduction, set up flutedly, can fix a position the mounted position of heat conduction strip, thereby make more accurate of heat conduction strip installation, can not influence the effect of heat conduction, and the recess can reduce the distance between heat conduction strip and the circuit component, thereby increase the heat conduction effect of heat conduction strip.

The utility model discloses further set up to: the inner wall of the second shell is fixedly connected with a plurality of supporting columns, and the supporting columns are attached to the side wall of the second shell;

the circuit board is connected with a screw in a threaded manner, and the tail end of the screw penetrates through the circuit board to be connected with the support column in a threaded manner.

Through adopting above-mentioned technical scheme, when the circuit board was installed inside the casing, the both sides of circuit board all can not laminate with the casing inner wall, so the inner wall fixedly connected with support column of second shell, the support column can carry out the backup pad to the circuit board, makes circuit board and support column link together, avoids circuit board and casing inner wall to cause the damage to circuit element.

The utility model discloses further set up to: and the heat conducting strip is doped with silica gel.

Through adopting above-mentioned technical scheme, the heat conductivity of heat conduction strip is better, then is better to the radiating effect of circuit board, mixes silica gel in the heat conduction strip, can improve the heat conductivity of heat conduction strip, and then makes the heat conduction that the heat conduction strip can be better leads away the heat that circuit board work produced, improves radiating effect.

To sum up, the utility model discloses compare and have following beneficial effect in prior art:

1. the back surface of the circuit board is provided with a heat conducting strip, the side wall of the heat conducting strip, which is far away from the circuit board, is attached to the inner wall of the shell, and the heat conducting strip can conduct away heat generated by the circuit board, so that the purpose of heat dissipation is achieved;

2. the outer wall of the second shell is fixedly connected with a plurality of heat dissipation plates, the edge parts of the heat dissipation plates are provided with round corners, the heat dissipation plates can increase the contact area between the shell and the outside, the heat dissipation effect is further improved, and the round corners can prevent sharp edges on the heat dissipation plates from scratching workers;

3. silica gel is doped in the heat conduction strip, so that the heat conductivity of the heat conduction strip can be further improved, the heat on the circuit board can be better conducted away by the heat conduction strip, and the heat dissipation effect is improved.

Drawings

FIG. 1 is an overall structural view of the embodiment;

FIG. 2 is an exploded view showing the internal structure of the enclosure in the embodiment;

fig. 3 is an exploded view of the highlighted thermal strip of the example.

In the figure: 1. a housing; 11. a first housing; 12. a second housing; 13. a fixed block; 131. a positioning column; 14. a bump; 141. positioning a groove; 15. a through hole; 16. a bolt; 161. a nut; 17. accommodating grooves; 2. a circuit board; 21. a screw; 22. a groove; 23. a heat conducting strip; 3. a support pillar; 4. a heat dissipation plate; 41. and (4) rounding.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): a motor controller, as shown in fig. 1 and 2, includes a casing 1 and a circuit board 2 disposed in the casing 1; the casing 1 includes a first housing 11 and a second housing 12; the division of the housing 1 into a first housing 11 and a second housing 12 facilitates the opening of the housing 1 and the mounting of the circuit board 2 inside the housing 1.

As shown in fig. 2 and 3, the first housing 11 and the second housing 12 are fixedly connected to a plurality of fixing blocks 13 and a plurality of protruding blocks 14, respectively, the fixing blocks 13 are fixedly connected to positioning posts 131, the protruding blocks 14 are provided with positioning grooves 141, and when the first housing 11 and the second housing 12 are fastened, the positioning posts 131 enter the positioning grooves 141, so that the first housing 11 and the second housing 12 can be positioned and aligned.

As shown in fig. 2 and 3, through holes 15 are formed in the positioning posts 131 and the positioning grooves 141, bolts 16 are inserted into the fixing blocks 13, the ends of the bolts 16 penetrate through the through holes 15 and protrude out of the surfaces of the protruding blocks 14, nuts 161 are connected to the ends of the bolts 16 in a threaded manner, and the nuts 161 are attached to the surfaces of the protruding blocks 14, so that the first housing 11 and the second housing 12 can be tightly and fixedly connected together through the cooperation of the bolts 16 and the nuts 161.

As shown in fig. 2 and 3, a plurality of support columns 3 are fixedly connected to the bottom surface of the second housing 12, one ends of the support columns 3, which are far away from the second housing 12, are attached to the back surface of the circuit board 2, screws 21 are inserted into the front surface of the circuit board 2, and the tail ends of the screws 21 penetrate through the circuit board 2 and are connected with the support columns 3 in a threaded manner; the circuit board 2 can be stably fixed in the second housing 12; sometimes, there is a circuit on the back of the circuit board 2, so the circuit board 2 cannot contact with the inner wall of the housing 1, and the supporting column 3 can avoid the circuit board 2 from attaching to the inner wall of the second housing 12, and avoid the circuit on the circuit board 2 from being affected.

As shown in fig. 2 and 3, a groove 22 is formed on the back surface of the circuit board 2, a heat conducting strip 23 is installed in the groove 22, and the groove 22 is aligned with the circuit elements on the front surface of the circuit board 2; an accommodating groove 17 is formed in the inner wall of the second shell 12, and one side, far away from the circuit board 2, of the heat conducting strip 23 is located in the accommodating groove 17; in the working process of the controller, the circuit elements can generate heat, and if the heat cannot be discharged, the circuit elements can be damaged, so that the use of the controller is influenced; the heat conducting strips 23 can transfer heat generated by the circuit elements to the inner wall of the second shell 12 and then radiate the heat to the outside through the second shell 12, so that the purpose of heat radiation is achieved, and compared with the conventional water cooling and air cooling modes, the heat radiating device has the advantages of simpler structure, less occupied space and convenience in installation and maintenance; the grooves 22 facilitate the alignment and installation of the heat conducting strips 23 and the circuit elements; the receiving groove 17 can play a role of positioning so that the circuit board 2 is accurately mounted in the second housing 12, and the receiving groove 17 and the groove 22 can increase the contact area of the heat conduction strip 23 and the second housing 12 and the circuit board 2, thereby increasing the efficiency of heat conduction; still mix in the heat conduction strip 23 and have silica gel, can increase the heat conductivity of heat conduction strip 23 to improve the efficiency of heat conduction strip 23, further increase radiating effect.

As shown in fig. 2 and 3, a plurality of heat dissipation plates 4 are fixedly connected to the side wall of the second housing 12, and edges of the heat dissipation plates 4 are all provided with rounded corners 41, so that the heat dissipation plates 4 can increase the contact area between the second housing 12 and the outside, thereby further increasing the heat dissipation efficiency; the round corners 41 of the heat dissipation plate 4 can replace sharp edges on the heat dissipation plate 4, and when the first housing 11 and the second housing 12 are installed together, the edges can be prevented from scratching workers, so that the potential safety hazard is reduced.

The specific use mode is as follows: install heat conduction strip 23 in the installation at the circuit board 2 back, then install circuit board 2 in second shell 12, when the installation, make in heat conduction strip 23 gets into the holding tank 17 on the second shell 12 inner wall, can play the effect of location to the installation of circuit board 2, then twist screw 21, circuit board 2 installs on support column 3 this moment, then with first shell 11 and second shell 12 lock together, insert the bolt 16 in the through-hole 15 on fixed block 13 and the lug 14, it can to twist up nut 161, the controller concatenation is accomplished.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A motor controller characterized by: the heat-conducting circuit board comprises a machine shell (1) and a circuit board (2) arranged in the machine shell (1), wherein the back surface of the circuit board (2) is fixedly connected with a heat-conducting strip (23), and one side, far away from the circuit board (2), of the heat-conducting strip (23) is attached to the inner wall of the machine shell (1);

a groove (22) is formed in the back face of the circuit board (2), and a heat conduction strip (23) is installed in the groove (22).

2. A motor controller according to claim 1, wherein: the machine shell (1) comprises a first shell (11) and a second shell (12), and the ends of the first shell (11) and the second shell (12) are attached together;

fixed block (13) and lug (14) are fixedly connected with respectively on the outer wall of first shell (11) and second shell (12) laminating part, and fixed block (13) and lug (14) laminating are in the same place, and it has bolt (16) to peg graft on fixed block (13), and threaded connection has nut (161) on lug (14) and bolt (16) end is passed to the end of bolt (16), and nut (161) laminating is on the lateral wall of lug (14).

3. A motor controller according to claim 2, wherein: the fixed block (13) is fixedly connected with a positioning column (131), and the protruding block (14) is provided with a positioning groove (141);

the fixing block (13) is provided with a through hole (15) penetrating through the fixing positioning column (131) and the positioning groove (141), and the bolt (16) is inserted into the through hole (15).

4. A motor controller according to claim 2, wherein: the side wall laminating of heat conduction strip (23) and second shell (12), a plurality of heating panels (4) of fixedly connected with on the outer wall of second shell (12), even distribution of heating panel (4) is on the side wall of second shell (12).

5. A motor controller according to claim 4, wherein: and the edges of the end parts of the heat dissipation plate (4) far away from the second shell (12) are provided with round corners (41).

6. A motor controller according to claim 2, wherein: and the inner wall of the second shell (12) is provided with a containing groove (17) capable of containing the heat conducting strip (23).

7. A motor controller according to claim 2, wherein: the inner wall of the second shell (12) is fixedly connected with a plurality of supporting columns (3), and the supporting columns (3) are attached to the side wall of the second shell (12);

the circuit board (2) is connected with a screw (21) in a threaded manner, and the tail end of the screw (21) penetrates through the circuit board (2) and is connected with the supporting column (3) in a threaded manner.

8. A motor controller according to claim 1, wherein: the heat conducting strip (23) is doped with silica gel.