Stepping motor driving structure applied to precision machinery
By installing a heat dissipation shell and exhaust fan outside the stepper motor, the gas circulation flow is achieved, which solves the problem of poor heat dissipation effect of the stepper motor, significantly improves the heat dissipation effect and provides protection.
Patent Information
- Application Number
- CN202421521336.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The stepper motor has poor heat dissipation effect when used, which can easily lead to overheating, affect the motor performance and shorten the service life.
A driving structure including a heat dissipation shell and an exhaust fan is designed. The heat dissipation shell is arranged around the stepper motor, and the circulating flow of gas is achieved through the air inlet, gas flow channel and air outlet, and the exhaust fan enhances the gas flowability to improve the heat dissipation effect.
By enhancing the gas flow outside the stepper motor, the heat dissipation effect is significantly improved, which is more effective than the own heat dissipation method. At the same time, the heat dissipation shell provides protection for the stepper motor.
Smart Images
Figure CN222827100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor driving, in particular to a driving structure using a precision mechanical stepping motor. Background Art
[0002] Most precision instruments use stepper motors as driving devices. The stepper motors can achieve precise position control when in use. At the same time, the stepper motors can smoothly adjust the speed within a wide range to meet the working requirements of different precision instruments. Precision instruments include medical equipment, laboratory equipment, measuring instruments, 3D printing equipment, CNC machine tools, etc.
[0003] When some precision instruments are in use, when the instrument is working continuously, the stepper motor will work continuously. When the stepper motor works continuously, it will generate a lot of heat. Especially in the case of high load, overheating of the stepper motor will not only affect the performance of the motor, but also shorten its service life. The existing stepper motor has poor heat dissipation effect when in use, which easily leads to the problem of overheating of the stepper motor. Utility Model Content
[0004] The main purpose of the utility model is to propose a precision mechanical stepper motor driving structure, aiming to solve the problem that the heat dissipation effect of the stepper motor is poor when in use, which easily leads to overheating of the stepper motor.
[0005] To achieve the above purpose, the utility model proposes a precision mechanical stepper motor drive structure, including:
[0006] A drive assembly, including a mounting base, a stepper motor, a lead screw, and a slider; and
[0007] The heat dissipation component includes a heat dissipation shell and an exhaust fan. The heat dissipation shell covers the stepper motor and can be removed from the mounting seat. The heat dissipation shell is provided with an air inlet, an air outlet, and a gas flow channel. The gas flow channel is arranged around the stepper motor. The exhaust fan is installed in the heat dissipation shell and is arranged near the air outlet.
[0008] In one embodiment, the heat dissipation housing is configured as a prismatic structure, the heat dissipation housing is provided with at least one air outlet, the air outlet is provided close to the mounting seat, and the air inlet is provided on a surface of the heat dissipation housing away from the mounting seat.
[0009] In one embodiment, a plurality of wind-disturbing members are disposed in the heat dissipation housing, and the wind-disturbing members are used to make the gas flow toward the outside of the stepping motor.
[0010] In one embodiment, the wind-disturbing member has a wind-disturbing surface, and the wind-disturbing surface is used to make the gas flow toward the outside of the stepping motor.
[0011] In one embodiment, there are multiple wind-disturbing members, and the multiple wind-disturbing members are gradually arranged along the gas flow direction.
[0012] In one embodiment, the wind-disturbing surfaces of the plurality of wind-disturbing members are arranged to gradually become larger toward the air outlet.
[0013] In one embodiment, the heat dissipation assembly further includes a mounting frame, the mounting frame is used for mounting the exhaust fan, and the mounting frame is fixed inside the heat dissipation housing;
[0014] The heat dissipation housing is connected to the mounting seat by screw locking.
[0015] In one embodiment, the heat dissipation assembly further includes a refrigeration channel, and the refrigeration channel is used to cool the gas entering the heat dissipation housing.
[0016] In one embodiment, the heat dissipation assembly further includes a mounting tube and a refrigeration component, wherein the refrigeration component is mounted on the mounting tube, the mounting tube is fixed to the heat dissipation shell, and one end thereof corresponds to the air inlet, the refrigeration component is used to cool the gas passing through the mounting tube, and the interior of the mounting tube is configured as a refrigeration channel.
[0017] In one embodiment, the refrigeration element is configured as a refrigeration fin, and the mounting tube is provided with a mounting hole for mounting the refrigeration fin.
[0018] The technical solution of the utility model is to install a heat dissipation shell on the outside of the stepper motor, and use an exhaust fan to suck the gas outside the heat dissipation shell into the heat dissipation shell through the air inlet, and then flow along the gas flow channel, and finally be discharged to the outside through the air outlet. At this time, under the action of the exhaust fan, the gas fluidity outside the stepper motor can be increased, so as to achieve a heat dissipation effect on the stepper motor by making the gas flow quickly. Compared with placing the stepper motor in space and dissipating the heat by itself, the heat dissipation effect is better. At the same time, the heat dissipation shell can also protect the stepper motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0020] Figure 1 A structural schematic diagram of an embodiment of a precision mechanical stepping motor drive structure provided by the utility model;
[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the middle drive assembly;
[0022] Figure 3 for Figure 1 A schematic structural diagram of an embodiment of a heat dissipation component;
[0023] Figure 4 for Figure 1 A schematic structural diagram of another embodiment of the heat dissipation component.
[0024] Description of Figure Numbers:
[0025] 100, driving assembly; 110, mounting seat; 120, stepping motor; 130, lead screw; 140, slider; 150, guide rod;
[0026] 200, heat dissipation assembly; 210, heat dissipation housing; 220, exhaust fan; 230, air inlet; 240, air outlet; 250, gas flow channel; 260, wind-disturbing member; 261, wind-disturbing surface; 270, mounting frame; 280, mounting pipe; 281, mounting hole; 290, refrigeration member.
[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0031] Most precision instruments use stepper motors as driving devices. The stepper motors can achieve precise position control when in use. At the same time, the stepper motors can smoothly adjust the speed within a wide range to meet the working requirements of different precision instruments. Precision instruments include medical equipment, laboratory equipment, measuring instruments, 3D printing equipment, CNC machine tools, etc.
[0032] When some precision instruments are in use, when the instrument is working continuously, the stepper motor will work continuously. When the stepper motor works continuously, it will generate a lot of heat. Especially in the case of high load, overheating of the stepper motor will not only affect the performance of the motor, but also shorten its service life. The existing stepper motor has poor heat dissipation effect when in use, which easily leads to the problem of overheating of the stepper motor.
[0033] The utility model provides a driving structure using a precision mechanical stepping motor.
[0034] See also Figure 1 , Figure 2 , Figure 3 In one embodiment of the utility model, the precision mechanical stepper motor driving structure includes:
[0035] The driving assembly 100 includes a mounting seat 110, a stepper motor 120, a screw rod 130, a slider 140, and a guide rod 150, wherein the screw rod 130, the guide rod 150, and the stepper motor 120 are all mounted on the mounting seat 110, the slider 140 is mounted on the screw rod 130 and the guide rod 150, and the stepper motor 120 is connected to the screw rod 130 to drive the screw rod 130 to rotate.
[0036] The heat dissipation assembly 200 includes a heat dissipation housing 210 and an exhaust fan 220. The heat dissipation housing 210 covers the stepper motor 120 and can be detached from the mounting base 110. The heat dissipation housing 210 is provided with an air inlet 230, an air outlet 240, and a gas flow channel 250. The gas flow channel 250 is arranged around the stepper motor 120. The exhaust fan 220 is installed in the heat dissipation housing 210 and is arranged near the air outlet 240. The gas outside the heat dissipation housing 210 is exhausted through the exhaust fan 220 through the air inlet 230. The air is sucked into the heat dissipation housing 210 through the air port 230, then flows along the gas flow channel 250, and finally is discharged outward through the air outlet 240. At this time, the gas fluidity outside the stepper motor 120 can be increased under the action of the exhaust fan 220, thereby achieving a heat dissipation effect on the stepper motor 120 by making the gas flow quickly. Compared with placing the stepper motor 120 in space and dissipating the heat by itself, the heat dissipation effect is better. At the same time, the heat dissipation housing 210 can also provide a protective effect on the stepper motor 120.
[0037] The technical solution of the present invention is to install a heat dissipation shell 210 on the outside of the stepper motor 120, and to suck the gas outside the heat dissipation shell 210 into the heat dissipation shell 210 through the air inlet 230 through the exhaust fan 220, and then flow along the gas flow channel 250, and finally be discharged outward through the air outlet 240. At this time, under the action of the exhaust fan 220, the gas fluidity outside the stepper motor 120 can be increased, so as to achieve a heat dissipation effect on the stepper motor 120 by making the gas flow quickly. Compared with placing the stepper motor 120 in space and dissipating the heat by itself, the heat dissipation effect is better. At the same time, the heat dissipation shell 210 can also protect the stepper motor 120.
[0038] In one embodiment, reference Figure 1, the heat dissipation housing 210 is configured as a prismatic structure, and the heat dissipation housing 210 is provided with at least one air outlet 240, and the air outlet 240 is provided close to the mounting seat 110, and the air inlet 230 is provided on a side of the heat dissipation housing 210 away from the mounting seat 110, so as to make the heat dissipation housing 210 fit the structure of the stepper motor 120 more closely, and at the same time make the gas flow channel 250 flow better outside the stepper motor 120. For example, when the stepper motor 120 is configured as a prismatic structure, the heat dissipation housing 210 is also a prismatic structure, and at this time, there are gas flow channels 250 between each side of the stepper motor 120 and each inner wall of the heat dissipation housing 210, and at this time, the distribution of gas in all gas flow channels 250 in the heat dissipation housing 210 will be more uniform, so that the gas entering the heat dissipation housing 210 can be more evenly distributed outside the stepper motor 120. At the same time, in the present embodiment, when the air outlet 240 in the heat dissipation housing 210 is selected as one, the air outlet 240 is configured as a long strip, for example Figure 1 As shown, this is done to facilitate better discharge of gas to the outside of the heat dissipation housing 210 through the gas outlet 240 .
[0039] In one embodiment, reference Figure 3 , a plurality of wind-disturbing members 260 are arranged in the heat dissipation housing 210, and the wind-disturbing members 260 are used to make the gas flow toward the outside of the stepper motor 120. When the gas flows along the gas flow channel 250 in the heat dissipation housing 210, the wind-disturbing members 260 can interfere with the gas and make the gas flow toward the outside of the stepper motor 120. That is, the wind-disturbing members 260 can make the gas blow to the outside of the stepper motor 120 better, so that the stepper motor 120 can dissipate heat better. In this embodiment, reference Figure 3 The wind-disturbing member 260 has a wind-disturbing surface 261, and the wind-disturbing surface 261 is used to make the gas flow toward the outside of the stepper motor 120. In this embodiment, the wind-disturbing surface 261 can be a curved surface or an inclined surface, which is not limited here.
[0040] In one embodiment, reference Figure 3 The number of the wind-disturbing members 260 is multiple, and the multiple wind-disturbing members 260 are gradually arranged along the gas flow direction. The number of wind-disturbing members 260 is increased in order to increase the number of gas disturbances, wherein the multiple wind-disturbing members 260 are divided into multiple groups, and a group of wind-disturbing members 260 is arranged in each gas flow, and the number of wind-disturbing members 260 in each group of wind-disturbing members 260 is multiple.
[0041] In one embodiment, reference Figure 3The wind-disturbing surfaces 261 in the plurality of wind-disturbing members 260 are gradually enlarged toward the air outlet 240, so that the wind-disturbing surfaces 261 in the wind-disturbing members 260 far away from the air inlet 230 can also better change the flow direction of the gas. If the structures of the wind-disturbing members 260 are the same, it is inevitable that the wind-disturbing members 260 close to the air outlet 240 will have less contact with the gas, thereby failing to achieve a good effect of disturbing the gas.
[0042] In one embodiment, reference Figure 3 The heat dissipation assembly 200 further includes a mounting frame 270, and the mounting frame 270 is used for mounting the exhaust fan 220. The mounting frame 270 is fixed inside the heat dissipation housing 210, and the exhaust fan 220 can be conveniently connected to the heat dissipation housing 210 under the action of the mounting frame 270. In other embodiments, in order to improve the use effect of the exhaust fan 220, the exhaust fan 220 can be directly mounted at the air inlet 230.
[0043] The heat dissipation housing 210 is connected to the mounting base 110 by screw locking, so as to connect the mounting base 110 with the heat dissipation housing 210 and reduce the production cost of the present application.
[0044] In one embodiment, reference Figure 4 The heat dissipation component 200 also includes a refrigeration channel, which is used to cool the gas entering the heat dissipation shell 210. The gas blown into the heat dissipation shell 210 is cooled through the refrigeration channel, so that the stepper motor 120 in the heat dissipation shell 210 can be cooled faster, achieving a rapid cooling effect.
[0045] In one embodiment, reference Figure 4 The heat dissipation assembly 200 also includes a mounting tube 280 and a refrigeration component 290. The refrigeration component 290 is installed on the mounting tube 280. The mounting tube 280 is fixed to the heat dissipation housing 210, and one end corresponds to the air inlet 230. The refrigeration component 290 is used to cool the gas passing through the mounting tube 280. The interior of the mounting tube 280 is configured as a refrigeration channel. The above structure can reduce the installation cost of the refrigeration channel and facilitate maintenance.
[0046] In one embodiment, reference Figure 4, the refrigeration component 290 is configured as a refrigeration fin, and the mounting tube 280 is provided with a mounting hole 281, and the mounting hole 281 is used for mounting the refrigeration fin. The mounting hole 281 is provided to facilitate the heat dissipation of the refrigeration fin, that is, the hot surface of the refrigeration fin is located outside the refrigeration channel, that is, the hot surface is located outside the mounting tube 280, and the hot surface of the refrigeration fin can dissipate heat better. In other embodiments, the refrigeration component 290 can adopt a circulating cold water pipe assembly, through a circulating pump, a cold water pipe and cold water, wherein the cold water pipe is installed in the mounting tube 280, when the gas passes through the cold water pipe and contacts the outside of the cold water pipe, the temperature of the gas will decrease.
[0047] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A precision mechanical stepper motor drive structure, characterized in that: include: Driving assembly, including mounting base, stepper motor, lead screw and slider; as well as The heat dissipation component includes a heat dissipation shell and an exhaust fan. The heat dissipation shell covers the stepper motor and can be removed from the mounting seat. The heat dissipation shell is provided with an air inlet, an air outlet, and a gas flow channel. The gas flow channel is arranged around the stepper motor. The exhaust fan is installed in the heat dissipation shell and is arranged near the air outlet.
2. The precision mechanical stepper motor drive structure as claimed in claim 1, characterized in that: The heat dissipation housing is configured as a prism structure. The heat dissipation housing is provided with at least one air outlet, the air outlet is provided close to the mounting seat, and the air inlet is provided on a surface of the heat dissipation housing away from the mounting seat.
3. The precision mechanical stepper motor drive structure as claimed in claim 2, characterized in that: A plurality of wind-disturbing members are arranged in the heat dissipation housing, and the wind-disturbing members are used to make the gas flow toward the outside of the stepping motor.
4. The precision mechanical stepping motor driving structure as claimed in claim 3, characterized in that: The wind-disturbing member has a wind-disturbing surface, and the wind-disturbing surface is used to make the gas flow toward the outside of the stepping motor.
5. The precision mechanical stepping motor driving structure as claimed in claim 4, characterized in that: There are multiple wind-disturbing members, and the multiple wind-disturbing members are gradually arranged along the gas flow direction.
6. The precision mechanical stepping motor driving structure as claimed in claim 5, characterized in that: The wind-disturbing surfaces of the plurality of wind-disturbing members are arranged to gradually become larger toward the air outlet.
7. The precision mechanical stepping motor driving structure as claimed in claim 1, characterized in that: The heat dissipation assembly further includes a mounting frame, the mounting frame is used for mounting the exhaust fan, and the mounting frame is fixed inside the heat dissipation housing; The heat dissipation housing is connected to the mounting seat by screw locking.
8. The precision mechanical stepping motor driving structure according to any one of claims 1 to 7, characterized in that: The heat dissipation component also includes a refrigeration channel, and the refrigeration channel is used to cool the gas entering the heat dissipation housing.
9. The precision mechanical stepping motor driving structure as claimed in claim 8, characterized in that: The heat dissipation assembly also includes a mounting tube and a refrigeration component, wherein the refrigeration component is mounted on the mounting tube, the mounting tube is fixed to the heat dissipation housing, and one end of the mounting tube corresponds to the air inlet, the refrigeration component is used to cool the gas passing through the mounting tube, and the interior of the mounting tube is configured as a refrigeration channel.
10. The precision mechanical stepping motor driving structure as claimed in claim 9, characterized in that: The refrigeration component is configured as a refrigeration fin. The mounting tube is provided with a mounting hole for mounting the refrigeration fin.