CN217159439U

CN217159439U - Heat radiator for step motor

Info

Publication number: CN217159439U
Application number: CN202123294552.2U
Authority: CN
Inventors: 阮晔华
Original assignee: Shanghai Lvce Industrial Co ltd
Current assignee: Shanghai Lvce Industrial Co ltd
Priority date: 2021-12-26
Filing date: 2021-12-26
Publication date: 2022-08-09
Anticipated expiration: 2031-12-26

Abstract

The utility model discloses a heat dissipation device of a stepping motor in the technical field of stepping motors, which comprises a motor shell, a box body is fixedly arranged at the top of the motor shell, the inside of the motor shell is rotatably connected with a rotating shaft, a cooling box, a stirring box and a sealing box are fixedly arranged at the bottom of an inner cavity of the box body, a semiconductor refrigerator is fixedly arranged at the top of the cooling box, the right side of the cooling box is communicated with a liquid inlet pipe, the rotating shaft can drive a stirring rod to rotate in the process of the motor operation, the stirring rod can drive the stirring blade to rotate, low-temperature cooling oil in the cooling box is conveyed into a heat exchange pipe by stirring of the stirring blade, and high-temperature cooling oil in the heat exchange pipe flows back into the cooling box for secondary cooling through the pressure effect, the device adopts oil-cooled cooling, has better heat dissipation effect compared with the traditional fin type heat dissipation, and has larger cooling amplitude, and is not easily affected by the surrounding environment.

Description

Heat radiator for step motor

Technical Field

The utility model relates to a step motor technical field specifically is a step motor's heat abstractor.

Background

The stepping motor is a motor which converts an electric pulse signal into a corresponding angular displacement or linear displacement, and when a pulse signal is input, a rotor rotates by an angle or advances by one step, the output angular displacement or linear displacement is in direct proportion to the input pulse number, and the rotating speed is in direct proportion to the pulse frequency, so the stepping motor is also called a pulse motor.

Step motor is different with traditional motor, radiator fan is installed to traditional motor afterbody, at the rotatory in-process of motor shaft, the fan can be discharged inside heat from the thermovent of afterbody, the step motor afterbody does not have the thermovent, and pivot department also can't design the fan, consequently step motor's main radiating mode is dispelled the heat through the radiating fin of shell, but the radiating effect of this kind of mode is relatively poor, produce overheated phenomenon easily when step motor moves for a long time, reduce the life of motor.

Based on this, the utility model designs a step motor's heat abstractor to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a step motor's heat abstractor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a heat dissipation device of a stepping motor comprises a motor shell, wherein a box body is fixedly installed at the top of the motor shell, a rotating shaft is rotatably connected inside the motor shell, a cooling box, a stirring box and a sealing box are fixedly installed at the bottom of an inner cavity of the box body, a semiconductor refrigerator is fixedly installed at the top of the cooling box, a liquid inlet pipe is communicated with the right side of the cooling box, the other end of the liquid inlet pipe is communicated with the back of the stirring box, a stirring rod is rotatably connected to the inner wall of the stirring box, a stirring blade is fixedly installed on the surface of the stirring rod, the right end of the stirring rod penetrates into the sealing box, and the surface of the stirring rod is rotatably connected with the inner wall of the sealing box;

the heat exchange tube is fixedly arranged inside the motor shell and is annularly arranged, and the heat exchange tube is fixedly arranged inside the wall of the motor shell;

the front fixed mounting of stirring the box has the drain pipe, the other end and the heat exchange tube intercommunication of drain pipe, the bottom intercommunication of cooling box has the back flow, the bottom and the heat exchange tube intercommunication of back flow.

Preferably, the fixed surface of pivot installs first action wheel, the fixed surface of stirring rod installs first from the driving wheel, the surface of first action wheel is around being equipped with the belt, first action wheel passes through the belt and is connected with the transmission of first follow driving wheel, the diameter of first action wheel is greater than the diameter of first follow driving wheel.

Preferably, the cooling end of the semiconductor refrigerator penetrates into the cooling box, and the heat discharging end of the semiconductor refrigerator is positioned outside the cooling box.

Preferably, the right side of seal box inner chamber is rotated and is connected with the bull stick, the outside of seal box is run through to the left end of bull stick, the fixed surface of bull stick installs the flabellum.

Preferably, the surface fixed mounting of stirring rod has the second action wheel, the surface fixed mounting of bull stick has the second from the driving wheel, the surface of second action wheel is around being equipped with the belt, the second action wheel passes through the belt and is connected with the second from the driving wheel transmission, the diameter of second action wheel is greater than the diameter that the second was followed the driving wheel.

Preferably, the left end of the rotating rod is rotatably connected with a supporting plate, the top of the supporting plate is fixedly installed with the top of the inner cavity of the box body, and the bottom of the supporting plate is fixedly installed with the top of the stirring box.

Preferably, the top of the left side of the box body is provided with a heat dissipation hole, and a blocking net is fixedly arranged inside the heat dissipation hole.

Preferably, the top of cooling box intercommunication has the liquid feeding pipe, the outside of box body is run through to the top of liquid feeding pipe, the top threaded connection of liquid feeding pipe has the tube cap.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model is provided with a heat exchange tube inside the motor casing, the heat exchange tube is designed by copper alloy material with excellent heat conductivity, when the motor generates heat, the heat can be rapidly conducted to the heat exchange tube, and the cooling oil is filled in the heat exchange tube, the cooling oil is in low temperature state under the cooling of the semiconductor refrigerator, therefore, the heat exchange tube can absorb and transmit the heat to the cooling oil, the cooling oil can be gradually heated, and in the process of the motor operation, the rotating shaft can drive the stirring rod to rotate, the stirring rod can drive the stirring blade to rotate, the low-temperature cooling oil in the cooling box is conveyed to the heat exchange tube by the stirring of the stirring blade, and the high-temperature cooling oil in the heat exchange tube flows back to the cooling box for cooling again by pressure action, the device adopts oil cooling type cooling, the heat dissipation effect is better compared with the traditional fin type heat dissipation, and the cooling range is larger, and is not easily affected by the surrounding environment.

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 present invention;

FIG. 2 is a front sectional view of the motor casing and the box body of the present invention;

FIG. 3 is a left side sectional view of the stirring box of the present invention;

fig. 4 is a perspective view of the heat exchange tube of the present invention in a cut-open state.

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

1. a motor housing; 2. a box body; 3. a rotating shaft; 4. a cooling box; 5. a stirring box; 6. a sealing box; 7. a semiconductor refrigerator; 8. a liquid inlet pipe; 9. a stirring rod; 10. stirring the blades; 11. a heat exchange pipe; 12. a liquid outlet pipe; 13. a return pipe; 14. a first drive wheel; 15. a first driven wheel; 16. a rotating rod; 17. a fan blade; 18. a second drive wheel; 19. a second driven wheel; 20. a support plate; 21. heat dissipation holes; 22. a liquid feeding pipe.

Detailed Description

The technical solution 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, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Example one

Referring to the drawings, the utility model provides a technical scheme: a heat dissipation device of a stepping motor comprises a motor shell 1, wherein a box body 2 is fixedly installed at the top of the motor shell 1, a rotating shaft 3 is rotatably connected inside the motor shell 1, a cooling box 4, a stirring box 5 and a sealing box 6 are fixedly installed at the bottom of an inner cavity of the box body 2, a semiconductor refrigerator 7 is fixedly installed at the top of the cooling box 4, a liquid inlet pipe 8 is communicated with the right side of the cooling box 4, the other end of the liquid inlet pipe 8 is communicated with the back of the stirring box 5, the inner wall of the stirring box 5 is rotatably connected with a stirring rod 9, a stirring blade 10 is fixedly installed on the surface of the stirring rod 9, the right end of the stirring rod 9 penetrates into the sealing box 6, and the surface of the stirring rod 9 is rotatably connected with the inner wall of the sealing box 6;

a heat exchange tube 11 is fixedly arranged inside the motor casing 1, the heat exchange tube 11 is arranged in an annular shape, and the heat exchange tube 11 is fixedly arranged inside the casing wall of the motor casing 1;

a liquid outlet pipe 12 is fixedly arranged on the front surface of the stirring box 5, the other end of the liquid outlet pipe 12 is communicated with the heat exchange pipe 11, a return pipe 13 is communicated with the bottom of the cooling box 4, and the bottom of the return pipe 13 is communicated with the heat exchange pipe 11.

Specifically, a first driving wheel 14 is fixedly mounted on the surface of the rotating shaft 3, a first driven wheel 15 is fixedly mounted on the surface of the stirring rod 9, a belt is wound on the surface of the first driving wheel 14, the first driving wheel 14 is in transmission connection with the first driven wheel 15 through the belt, the diameter of the first driving wheel 14 is larger than that of the first driven wheel 15, the rotating shaft 3 can drive the first driving wheel 14 to rotate when rotating, the first driving wheel 14 drives the first driven wheel 15 to rotate through the belt, the first driven wheel 15 drives the stirring rod 9 to rotate, the stirring rod 9 drives the stirring blade 10 to rotate, the stirring blade 10 stirs low-temperature cooling oil in the cooling box 4 to be conveyed into the heat exchange tube 11, and high-temperature cooling oil in the heat exchange tube 11 flows back into the cooling box 4 through pressure action to be cooled again.

Specifically, the fixed surface of stirring rod 9 installs second action wheel 18, the fixed surface of bull stick 16 installs the second from driving wheel 19, the surface of second action wheel 18 is around being equipped with the belt, second action wheel 18 passes through the belt and is connected with the transmission of second from driving wheel 19, the diameter of second action wheel 18 is greater than the diameter of second from driving wheel 19, bull stick 16 can drive second action wheel 18 rotatory when rotatory, second action wheel 18 drives the second through the belt and follows driving wheel 19 rotatory, the second can drive bull stick 16 rotatory from driving wheel 19, bull stick 16 drives flabellum 17 rotatory, carry out the heat extraction to the inside of box body 2.

Specifically, the left end of bull stick 16 rotates and is connected with backup pad 20, the top of backup pad 20 and the top fixed mounting of 2 inner chambers of box body, the bottom of backup pad 20 and the top fixed mounting who stirs box 5, and backup pad 20 can increase the stability of bull stick 16 when rotatory, plays and carries out reinforced effect to bull stick 16.

Specifically, louvre 21 has been seted up at the left top of box body 2, and louvre 21's inside fixed mounting has the fender net, and flabellum 17 can be with the heat in the box body 2 through louvre 21 discharge when rotatory to keep off the net and can prevent that the foreign matter from entering into in the box body 2.

Specifically, the top intercommunication of cooling box 4 has liquid feeding pipe 22, and the outside of box body 2 is run through to the top of liquid feeding pipe 22, and the top threaded connection of liquid feeding pipe 22 has the tube cap, and liquid feeding pipe 22 can conveniently add the coolant oil to cooling box 4 to accessible liquid feeding pipe 22 extraction renews after the coolant oil uses the certain time.

Example two

The structure of the present embodiment is substantially the same as that of the first embodiment, except that the cooling end of the semiconductor refrigerator 7 penetrates the inside of the cooling box 4, the heat discharging end of the semiconductor refrigerator 7 is located outside the cooling box 4, and the cooling end and the heat discharging end of the semiconductor refrigerator 7 are located in different regions of the cooling box 4 in the apparatus, thereby avoiding affecting the cooling of the semiconductor refrigerator 7.

EXAMPLE III

The structure of this embodiment is basically the same as that of the first embodiment, except that the right side of the inner cavity of the sealing box 6 is rotatably connected with the rotating rod 16, the left end of the rotating rod 16 penetrates through the outside of the sealing box 6, the surface of the rotating rod 16 is fixedly provided with the fan blades 17, the rotating rod 16 can drive the fan blades 17 to rotate when rotating, and the fan blades 17 can discharge the heat generated by the semiconductor refrigerator 7 to the outside of the box body 2 so as to improve the refrigerating effect of the semiconductor refrigerator 7.

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 to be illustrative only. The preferred embodiments are not exhaustive and do not 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, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a step motor's heat abstractor, includes motor casing (1), its characterized in that: the semiconductor refrigerator is characterized in that a box body (2) is fixedly mounted at the top of the motor casing (1), a rotating shaft (3) is connected to the inside of the motor casing (1) in a rotating mode, a cooling box (4), a stirring box (5) and a sealing box (6) are fixedly mounted at the bottom of an inner cavity of the box body (2), a semiconductor refrigerator (7) is fixedly mounted at the top of the cooling box (4), a liquid inlet pipe (8) is communicated with the right side of the cooling box (4), the other end of the liquid inlet pipe (8) is communicated with the back of the stirring box (5), a stirring rod (9) is rotatably connected to the inner wall of the stirring box (5), a stirring blade (10) is fixedly mounted on the surface of the stirring rod (9), the right end of the stirring rod (9) penetrates through the inside of the sealing box (6), and the surface of the stirring rod (9) is rotatably connected with the inner wall of the sealing box (6);

a heat exchange tube (11) is fixedly installed inside the motor casing (1), the heat exchange tube (11) is arranged in an annular shape, and the heat exchange tube (11) is fixedly installed inside the casing wall of the motor casing (1);

the front fixed mounting who stirs box (5) has drain pipe (12), the other end and heat exchange tube (11) intercommunication of drain pipe (12), the bottom intercommunication of cooling box (4) has back flow (13), the bottom and the heat exchange tube (11) intercommunication of back flow (13).

2. The heat dissipating device for a stepping motor according to claim 1, wherein: the fixed surface of pivot (3) installs first action wheel (14), the fixed surface of stirring rod (9) installs first from driving wheel (15), the surface of first action wheel (14) is around being equipped with the belt, first action wheel (14) are connected with first from driving wheel (15) transmission through the belt, the diameter of first action wheel (14) is greater than the diameter of first from driving wheel (15).

3. The heat dissipating device for a stepping motor according to claim 1, wherein: the cooling end of the semiconductor refrigerator (7) penetrates into the cooling box (4), and the heat exhaust end of the semiconductor refrigerator (7) is positioned outside the cooling box (4).

4. The heat dissipating device for a stepping motor according to claim 1, wherein: the right side of seal box (6) inner chamber is rotated and is connected with bull stick (16), the outside of seal box (6) is run through to the left end of bull stick (16), the fixed surface of bull stick (16) installs flabellum (17).

5. The heat dissipating device for a stepping motor according to claim 4, wherein: the fixed surface of stirring pole (9) installs second action wheel (18), the fixed surface of bull stick (16) installs the second from driving wheel (19), the surface of second action wheel (18) is around being equipped with the belt, second action wheel (18) are connected with second from driving wheel (19) transmission through the belt, the diameter of second action wheel (18) is greater than the diameter that the second was followed driving wheel (19).

6. The heat dissipating device for a stepping motor according to claim 4, wherein: the left end of bull stick (16) rotates and is connected with backup pad (20), the top of backup pad (20) and the top fixed mounting of box body (2) inner chamber, the bottom of backup pad (20) and the top fixed mounting who stirs box (5).

7. The heat dissipating device for a stepping motor according to claim 1, wherein: heat dissipation hole (21) have been seted up at the left top of box body (2), the inside fixed mounting of heat dissipation hole (21) has the fender net.

8. The heat dissipating device for a stepping motor according to claim 1, wherein: the top of the cooling box (4) is communicated with a liquid feeding pipe (22), the top of the liquid feeding pipe (22) penetrates through the outer part of the box body (2), and the top of the liquid feeding pipe (22) is in threaded connection with a pipe cover.