CN218888285U - Self-cooling structure based on linear motor - Google Patents
Self-cooling structure based on linear motor Download PDFInfo
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- CN218888285U CN218888285U CN202222962025.2U CN202222962025U CN218888285U CN 218888285 U CN218888285 U CN 218888285U CN 202222962025 U CN202222962025 U CN 202222962025U CN 218888285 U CN218888285 U CN 218888285U
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- air guide
- coil
- linear motor
- mounting groove
- guide plate
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Abstract
The utility model discloses a from cooling structure based on linear electric motor belongs to the linear electric motor field. The improved air guide plate is characterized by comprising a sliding platen and a coil, wherein a mounting groove is formed in the sliding platen, the coil is arranged in the mounting groove, slope structures are arranged at two ends of the sliding platen in the stroke direction, a ventilation groove which is communicated up and down is formed between the slope structures at the two ends, the ventilation groove is located above the mounting groove and communicated with the mounting groove, an air guide plate is further arranged above the slope structures and the ventilation groove, and an inclined opening type structure which is gradually reduced is formed between the air guide plate and the slope structures. Compared with the prior art, the beneficial effects of the utility model are that: the structure of the sliding bedplate is changed, the coil and the sliding bedplate are attached together and then are filled with glue, and only the air guide plate is added, so that the coil has the air guide effect. The linear motor is naturally cooled, and meanwhile, the cooling performance of the linear motor is improved. Meanwhile, the device is suitable for high-speed application occasions, and has low noise, low energy consumption, low cost and high economic benefit.
Description
Technical Field
The utility model belongs to the linear electric motor field, in particular to from cooling structure based on linear electric motor.
Background
The direct drive motor is a moving mechanical structure which directly transmits thrust and torque from a power source to a load. With this construction, all mechanical transmission components (ball screw assemblies, racks and pinions, drive belts/pulleys, and gear boxes, etc.) are eliminated, eliminating backlash, compliance, and other problems associated with mechanical transmission.
The linear motor is a direct drive motor. By unfolding the closed magnetic field into an open magnetic field, electrical energy is directly converted into mechanical energy of linear motion without the need for any intermediate conversion mechanism gearing. The linear motor may be considered as a structure formed by cutting a rotary motor in the radial direction and spreading the circumference of the motor in a straight line.
The linear motor comprises a flat plate type linear motor, a U-shaped groove type linear motor and a cylindrical linear motor.
The temperature rise of the linear motor is a key performance index. The thrust, the precision, the service life and the like of the linear motor can be influenced by overhigh temperature rise. The key factors influencing temperature rise mainly include heating and heat dissipation of the linear motor, the main heat source of the motor is the winding, the heating problem of the winding can be considered during electromagnetic design of the motor, the heat dissipation problem is relatively complex, and the heat dissipation can be performed on the motor by adopting natural cooling, air cooling, water cooling and other modes.
Natural air cooling: the heat dissipation of the motor is carried out by adopting a natural heat dissipation mode, and the heating problem of the winding can be considered when the linear motor is designed electromagnetically. Under the general normal use condition, the high-speed motion makes the air around the linear motor produce negative pressure convection, can reduce the temperature of linear motor active cell through natural heat dissipation.
Air cooling: there are two ways for air cooling a linear motor: one is the internal heat dissipation of the linear motor. The circulating gas pipe (equipped with intake pipe and outlet duct) is installed additional around the inside coil of linear electric motor active cell to the accessible, through pneumatic means, sends into linear electric motor inside with low temperature gas from the intake pipe. The low-temperature gas absorbs heat dissipated by the motor during operation in the motor mover and then flows out of the air outlet pipe, so that the effect of dissipating heat of the motor is achieved.
The other is external heat dissipation of the linear motor. An air guide groove is arranged on a bedplate for fixing a linear motor rotor. The air guide groove is provided with an air outlet, and the position of the air outlet is positioned around the rotor coil rack. And low-temperature gas is delivered to the periphery of the coil through a pneumatic device to achieve the effect of cooling and radiating the rotor of the linear motor.
Water cooling: the linear motor water cooling principle is similar to the linear motor internal air cooling. A water pipe loop is additionally arranged in the linear motor rotor, and water is sent into the motor through a water pump to absorb heat, so that the effect of dissipating heat of the linear motor is achieved.
The linear motor can generate a large amount of heat under the conditions of high speed, high acceleration and high response, and the heat dissipation requirement of the motor cannot be met by ordinary natural cooling. Although air cooling and water cooling can meet the heat dissipation requirement of the motor, the air cooling and the water cooling are adopted for heat dissipation of the motor, so that the structural size of the mover of the linear motor and the self weight of the mover are increased. Influence motor thrust also do not be favorable to the linear electric motor module use occasion that has space dimension restriction simultaneously. In addition, in the use environment with noise limitation, the air cooling and water cooling heat dissipation methods cannot meet the requirements of use conditions due to large generated sound.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, a primary object of the present invention is to provide a self-cooling structure based on a linear motor, which has an air guiding function, can improve the efficiency of natural air cooling, and increase the cooling performance;
another object of the present invention is to provide a self-cooling structure based on a linear motor, which does not have the problems of energy consumption and noise;
a final object of the utility model is to provide a from cooling structure based on linear electric motor, simple structure, save space, with low costs, convenient to use and popularization.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a from cooling structure based on linear electric motor, including slip platen, coil, be provided with the mounting groove on the slip platen, the coil sets up in the mounting groove, the slip platen is provided with the slope structure at its stroke direction's both ends, is provided with the ventilation groove that link up from top to bottom between the slope structure at both ends, the ventilation groove is located the top of mounting groove and communicates with the mounting groove, the top in slope structure and ventilation groove still is provided with air guide plate, form the bevel type structure that diminishes gradually between air guide plate and the slope structure. In this application, linear electric motor is when the operation, and the air attaches together the bevel connection type structure that forms after the air guide plate of one end attaches together with the slip platen and gets into and flow through the air duct, then blows off from the bevel connection type structure of the other end, when flowing through the air duct, can cool off the heat dissipation to the coil in the below mounting groove. Because of the existence of the bevel connection structure, the inner space between the inlet of the air guide plate and the sliding bedplate is gradually reduced, the pressure intensity of air is increased, and therefore the air flow velocity flowing through the upper surface of the coil is improved. The heat emitted by the coil when acting can be quickly taken away by the airflow, so that the temperature rise of the linear motor can be controlled in a stable range, and the stable working performance of the linear motor is ensured.
Furthermore, the number of the air guide plates is two, and the two air guide plates are linearly arranged and symmetrically arranged in the stroke direction.
Further, the air guide plate comprises an upper flat plate, an inclined plate and a lower flat plate, the upper flat plate, the inclined plate and the lower flat plate are sequentially connected, the upper flat plate is arranged above the slope structure, a second slope structure is further arranged on the side edge of the sliding bedplate, which is located on the ventilation groove, the inclined plate is arranged above the second slope structure and is parallel to the second slope structure, and the lower flat plate is arranged above the ventilation groove. In this application, linear electric motor is when the operation, and the air gets into the in-process in ventilation groove from the air guide plate of one end: between last flat board and slope structure, the inner space reduces gradually and finally stabilizes, at the in-process that reduces gradually, has increased the pressure of air to improve the air velocity of flowing through the upper surface of the coil, increased heat dispersion.
Furthermore, the coil and the sliding bedplate adopt an integrated glue pouring process. The coil and the sliding bedplate are firstly assembled and then packaged and glue-filled. The rigidity and the size precision of the linear motor are effectively ensured. The sliding bedplate adopts the hollow mounting groove to install the coil, and the rubber surface of the motor coil is directly exposed on the upper surface of the sliding bedplate, so that the influence on the heat dissipation performance of the motor due to heat conduction among different materials is reduced. In addition, the self weight of the linear motor rotor is reduced while the structural strength is ensured. Is favorable for high-speed and high-acceleration application occasions.
Compared with the prior art, the beneficial effects of the utility model are that:
the structure is simple: by changing the structure of the sliding bedplate, the coil and the sliding bedplate are attached together and then are filled with glue. Only by adding the air guide plate, the air guide plate has the air guide function. The linear motor is naturally cooled, and meanwhile, the cooling performance of the linear motor is improved.
The device is suitable for high-speed application occasions, and has low noise and low energy consumption: the temperature rise of the linear motor is too high, and the application performances of the module, such as precision, speed, acceleration and the like, can be directly realized. On the basis of normal heat dissipation of the linear motor, heat is dissipated through the structure. The problems of energy consumption and noise caused by air cooling or water cooling are solved. Meanwhile, the size of the linear motor is effectively controlled. The mass of the follow-up part can be suitable for the application field with high speed and high acceleration.
Low cost and high economic benefit: the linear motor adopts a coil and sliding table integrated flat plate type linear motor structure and a production process which are simple and can be molded by one-time glue filling, a middle polishing and adjusting link is omitted, and the improvement of the production efficiency of the rotor is facilitated. The rotor has the function of a sliding bedplate, can be directly installed and connected with the guide rail, is simpler in installation process, and reduces the assembly cost and the time cost. In the application of the linear module, the simplified structure reduces the space cost of the whole motion system.
Drawings
Fig. 1 is an isometric view of the present embodiment.
Fig. 2 is an exploded view of the present embodiment.
Fig. 3 is a plan view of the present embodiment.
Fig. 4 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 3.
Fig. 5 is a schematic view of the air deflector structure of this embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-5, the present invention is realized as follows:
the embodiment provides a self-cooling structure based on linear electric motor, including sliding platen 1, coil 2, be provided with mounting groove 3 on the sliding platen 1, coil 2 sets up in mounting groove 3, sliding platen 1 is provided with slope structure 4 at its stroke direction's both ends, be provided with ventilation groove 5 that link up from top to bottom between the slope structure 4 at both ends, ventilation groove 5 is located the top of mounting groove 3 and communicates with mounting groove 3, the top of slope structure 4 and ventilation groove 5 still is provided with air guide plate 6, form the bevel type structure 7 that diminishes gradually between air guide plate 6 and the slope structure 4. In this application, linear electric motor is when operation, and the air gets into and flows through wind channel 5 from the air guide plate 6 of one end and the oblique mouth type structure 7 that the sliding platen 1 formed after assembling together, then blows off from the oblique mouth type structure 7 of the other end, when flowing through wind channel 5, can cool off heat dissipation to coil 2 in below mounting groove 3. Due to the inclined-mouth structure 7, the inner space between the inlet of the air deflector 6 and the sliding bedplate 1 is gradually reduced, the pressure of the air is increased, and the air velocity flowing through the upper surface of the coil 2 is improved. The heat emitted by the coil 2 when acting can be quickly taken away by the airflow, so that the temperature rise of the linear motor can be controlled in a stable range, and the stable working performance of the linear motor is ensured.
Further, the number of the air guide plates 6 is two, and the two air guide plates 6 are linearly arranged in the stroke direction and are symmetrically arranged.
Further, the air deflector 6 comprises an upper flat plate 61, an inclined plate 62 and a lower flat plate 63, the upper flat plate 61, the inclined plate 62 and the lower flat plate 63 are sequentially connected, the upper flat plate 61 is arranged above the slope structure 4, the sliding bedplate 1 is further provided with a second slope structure 8 on the side edge of the ventilation groove 5, the inclined plate 62 is arranged above the second slope structure 8 and is parallel to the second slope structure 8, and the lower flat plate 63 is arranged above the ventilation groove 5. In this application, linear electric motor is when the operation, and the air gets into the in-process of ventilation groove 5 from the air guide plate 6 of one end: between the upper plate 61 and the slope structure 4, the inner space is gradually reduced and finally stabilized, and in the process of gradual reduction, the pressure of air is increased, so that the air flow rate flowing through the upper surface of the coil 2 is increased, and the heat radiation performance is increased.
Further, the coil 2 and the sliding bedplate 1 adopt an integrated glue pouring process. The coil 2 and the sliding bedplate 1 are firstly assembled and then packaged and glue filled. The rigidity and the size precision of the linear motor are effectively guaranteed. The sliding bedplate 1 adopts the hollow mounting groove 3 to mount the coil 2, and the rubber surface of the motor coil 2 is directly exposed on the upper surface of the sliding bedplate 1, so that the influence on the heat dissipation performance of a motor due to heat conduction among different materials is reduced. In addition, the self weight of the linear motor rotor is reduced while the structural strength is ensured. Is favorable for high-speed and high-acceleration application occasions.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a from cooling structure based on linear electric motor, its characterized in that, including slip platen, coil, be provided with the mounting groove on the slip platen, the coil sets up in the mounting groove, the slip platen is provided with the slope structure at its stroke direction's both ends, is provided with the ventilation groove of lining up from top to bottom between the slope structure at both ends, the ventilation groove is located the top of mounting groove and communicates with the mounting groove, the top in slope structure and ventilation groove still is provided with air guide plate, form the bevel connection type structure that diminishes gradually between air guide plate and the slope structure.
2. The self cooling structure based on a linear motor according to claim 1, wherein said air guide plates are provided in two, and two of said air guide plates are arranged in a straight line in the stroke direction and are symmetrically provided.
3. The self-cooling structure based on a linear motor according to claim 1, wherein the air deflector comprises an upper plate, an inclined plate and a lower plate, the upper plate, the inclined plate and the lower plate are sequentially connected, the upper plate is disposed above the ramp structure, the sliding platen is further provided with a second ramp structure at a side of the ventilation slot, the inclined plate is disposed above the second ramp structure and parallel to the second ramp structure, and the lower plate is disposed above the ventilation slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222962025.2U CN218888285U (en) | 2022-11-04 | 2022-11-04 | Self-cooling structure based on linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222962025.2U CN218888285U (en) | 2022-11-04 | 2022-11-04 | Self-cooling structure based on linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218888285U true CN218888285U (en) | 2023-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222962025.2U Active CN218888285U (en) | 2022-11-04 | 2022-11-04 | Self-cooling structure based on linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218888285U (en) |
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2022
- 2022-11-04 CN CN202222962025.2U patent/CN218888285U/en active Active
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