CN219833931U - Linear motor heat radiation structure based on heat pipe - Google Patents
Linear motor heat radiation structure based on heat pipe Download PDFInfo
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- CN219833931U CN219833931U CN202320842934.4U CN202320842934U CN219833931U CN 219833931 U CN219833931 U CN 219833931U CN 202320842934 U CN202320842934 U CN 202320842934U CN 219833931 U CN219833931 U CN 219833931U
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- linear motor
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- 230000005855 radiation Effects 0.000 title claims abstract description 18
- 230000017525 heat dissipation Effects 0.000 claims abstract description 49
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000012546 transfer Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
- Linear Motors (AREA)
Abstract
The utility model discloses a heat pipe-based linear motor heat dissipation structure, which relates to the technical field of motor heat dissipation and comprises a stator and a rotor which are matched with each other, wherein the rotor is arranged on the stator in a sliding manner, and the heat pipe-based linear motor heat dissipation structure further comprises: the motor silicon steel sheet, the bottom of motor silicon steel sheet is connected with the iron core, the winding has the coil winding on the iron core, the upper portion of motor silicon steel sheet is provided with the recess, the embedding is many heat pipes of arranging in turn in the recess, the recess with fill between the heat pipe and be equipped with the heat conduction interface material, the top surface of motor silicon steel sheet is equipped with heat radiation fin, wherein, the heat pipe one end of arranging in turn with the iron core contact heat transfer, the other end with heat radiation fin contact heat transfer. The utility model can improve the heat dissipation efficiency of the linear motor, average heat distribution and the running efficiency of the linear motor.
Description
Technical Field
The utility model relates to the technical field of motor heat dissipation, in particular to a heat pipe-based linear motor heat dissipation structure.
Background
With the rapid development of the modern manufacturing industry, there is an increasing demand for high-speed precision machining equipment. Compared with the traditional transmission mode, the linear motor direct-drive feeding system has the remarkable advantages of high feeding speed, high acceleration, high positioning precision and the like, does not need any intermediate mechanical transmission mechanism, eliminates the loss and the limit of the mechanical transmission mechanism, realizes zero transmission from the motor to the workbench, and can greatly improve the efficiency of the whole system. The method is widely applied to the fields of high-grade numerical control machine tools, very large-scale integrated circuit manufacturing equipment and the like.
But the heating of the linear motor in fine work can cause the problems of demagnetization of a permanent magnet, reduction of motor efficiency, reduction of service life, insulation failure and the like, which restricts the exertion of the excellent performance of the motor system to a certain extent. Particularly, the motor is developing in the directions of high thrust, high acceleration and the like, and a large current density is usually required to be applied, so that a large loss is generated, and the problem of thermal runaway of the motor is easily caused by sudden temperature rise of a coil winding of the motor.
Disclosure of Invention
Aiming at the defect of poor heat dissipation efficiency of the linear motor in the prior art, the utility model provides the heat pipe-based linear motor heat dissipation structure which can improve the heat dissipation efficiency of the linear motor, average heat distribution and the running efficiency of the linear motor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a linear electric motor heat radiation structure based on heat pipe, includes mutually supporting stator and active cell, the active cell slip set up in on the stator, still include: the motor silicon steel sheet, the bottom of motor silicon steel sheet is connected with the iron core, the winding has the coil winding on the iron core, the upper portion of motor silicon steel sheet is provided with the recess, the embedding is many heat pipes of arranging in turn in the recess, the recess with fill between the heat pipe and be equipped with the heat conduction interface material, the top surface of motor silicon steel sheet is equipped with heat radiation fin, wherein, the heat pipe one end of arranging in turn with the iron core contact heat transfer, the other end with heat radiation fin contact heat transfer.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, a heat conduction gasket is disposed between the heat dissipation fins and the heat pipe.
The heat pipe-based linear motor heat radiation structure as described in the above 1, further, the stator includes magnetic steel and a guide rail, and the magnetic steel is laid along the length direction of the guide rail.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, the heat pipe is in surface contact with the motor silicon steel sheet and the heat dissipation fins respectively.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, the side surface of the motor silicon steel sheet and the heat dissipation fins are both provided with fin-shaped heat dissipation shells.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, the heat conduction gasket is a heat conduction carbon fiber gasket; the radiating fins are aluminum alloy radiating pieces.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, the cross section of the groove is U-shaped, and the cross section of the heat pipe is matched with the U-shaped cross section of the groove.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, the heat pipe has a flat shape.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, the heat pipe is a copper-based heat pipe; the heat-conducting interface material is heat-conducting silicone grease.
The heat pipe-based linear motor heat dissipation structure as described in the above 1, further, the heat pipe is installed directly above the coil winding.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, by combining the researches on the geometric parameters, electromagnetic performance and operation conditions of the motor, the phase-change heat pipe is embedded into the magnetic steel sheet of the motor, one end of the phase-change heat pipe is contacted with the core high-temperature region of the iron core, and the other end of the phase-change heat pipe is contacted with the heat dissipation fins serving as cold sources, wherein the upper part and the lower part of the heat pipe are respectively provided with a heat conduction interface material so as to reduce the thermal resistance in the device surface contact process and strengthen the effective transfer of heat. Based on the characteristic of high heat conductivity of the phase-change heat pipe, ohmic heat generated by the winding assembly during working is uniformly transferred from the winding assembly to the radiating fins to be taken away by utilizing gas-liquid phase circulation formed inside the heat pipe. The design of the radiating fins can greatly improve the effective utilization of the radiating structure to the air quantity, improve the radiating efficiency of the motor, and the radiating fins are locked on the rotor through screws, so that the production and assembly difficulty is reduced.
In summary, the heat dissipation structure can enable the motor not to easily generate heat accumulation even if the motor runs for a long time, thereby realizing the requirements of light weight and miniaturization of the motor. In addition, the heat dissipation structure is simple, easy to produce and process, and has the advantages of energy conservation, low cost and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a three-dimensional schematic diagram of a heat dissipating structure according to an embodiment of the present utility model;
FIG. 2 is a three-dimensional view showing the assembly of a heat pipe to a mover in the embodiment of the present utility model;
FIG. 3 is an exploded view showing a heat pipe assembled to a mover in the embodiment of the present utility model;
FIG. 4 is a side view showing a heat pipe assembled to a mover in the embodiment of the present utility model;
fig. 5 is a three-dimensional view of a flat plate heat pipe in an embodiment of the present utility model.
The accompanying drawings show: 1. a heat radiation fin; 2. a heat pipe; 3. a motor silicon steel sheet; 4. an epoxy resin; 5. a thermally conductive gasket; 6. a mover; 7. a stator; 8. a coil winding; 9. an iron core; 10. a set screw; 11. a guide rail; 12. magnetic steel; 13. a groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples:
it should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1 to 5, the embodiment of the utility model discloses a heat pipe-based linear motor heat dissipation structure, which comprises a stator 7 and a rotor 6 which are matched with each other, wherein the rotor 6 of the embodiment comprises a heat dissipation fin 1, a heat pipe 2 (or called as a phase-change heat pipe 2), a silicon steel sheet 3, epoxy resin 4, a heat conduction gasket 5, a coil winding 8, an iron core 9 and a fixing screw 10, the heat pipe 2 adopts the phase-change heat pipe in the prior art, square grooves 13 are formed in the silicon steel sheet 3 of the motor, and a plurality of heat pipes 2 are embedded in the grooves 13; and a heat conduction interface material is filled between the groove 13 and the heat pipe 2, and a heat conduction gasket 5 is arranged between the heat radiation fin 1 and the heat pipe 2. Wherein the heat radiation fins 1 are locked on the silicon steel sheet 3 through the fixing screws 10. In the present embodiment, one end of the phase-change heat pipe is in contact with a core high-temperature region of the iron core, and the other end is in contact with a heat radiation fin serving as a cold source, and ohmic heat generated by a winding assembly (mainly a coil winding 8) during operation is uniformly transferred from the winding assembly to the heat radiation fin and taken away by utilizing gas-liquid phase circulation formed inside the heat pipe based on the characteristic of high conductivity of the phase-change heat pipe.
In some embodiments, the stator comprises a magnetic steel 12 and a guide rail 11, the magnetic steel 12 is laid on the guide rail 11 along the length direction, and the mover 6 moves linearly along the stator 7.
In some embodiments, the phase-change heat pipe 2 of the embodiment is in surface contact with the silicon steel sheet 3 of the motor of the embodiment and the radiating fins 1 respectively, so that the heat transfer path area is larger, and the radiating effect of the motor is fully ensured.
In some embodiments, the silicon steel sheet 3 and the heat dissipation fins 1 of the motor are both designed with fin type heat dissipation shells, so that on one hand, the contact area between the motor and cooling air can be increased, and on the other hand, the heat convection coefficient can be improved through the fin type shell design, so that the heat exchange capacity between the motor and the outside is enhanced.
In some embodiments, a heat conducting layer is provided between the groove 13 and the heat pipe 2, and between the heat radiation fin 1 and the heat pipe 2. By filling the gaps between the components with the heat-conducting interface material, the contact thermal resistance between the devices can be reduced, and the heat transfer efficiency is further improved. Preferably, the material of the heat conducting layer may be a heat conducting spacer or a heat conducting silicone grease. In the embodiment, the thermal interface material filled between the groove 13 and the heat pipe 2 is epoxy resin 4, so that the area contact area is large, the required filled materials are more, the range is wider, and the epoxy resin has the characteristics of high heat conductivity and excellent insulativity; the thermal interface material placed between the cold radiating fins 1 and the heat pipe 2 is a heat conducting carbon fiber gasket, and the area needs less filling material and the thickness is preferably thin.
In some embodiments, the heat sink fins are aluminum alloy heat sinks. More preferably, the material of the heat dissipation fin 1 may be copper, copper alloy, aluminum alloy, or the like. In this embodiment, an aluminum alloy heat sink is selected. The aluminum alloy has the advantages of light weight, low price, good heat conduction performance and convenient processing, and is suitable for the application scene of the motor.
In some embodiments, the cross section of the groove 13 is in a shape of a "U", and the cross section of the heat pipe 2 is in a shape of a "U" matched with the cross section of the groove 13 of the embodiment, so that the lower surface of the heat pipe 2 and the groove surface of the groove 13 of the embodiment are completely attached to form a good contact surface, the contact area between the heat pipe 2 and the groove 13 is increased as much as possible, and the heat dissipation efficiency is improved. Optionally, the heat conduction silicone grease is uniformly coated on the cross section of the heat pipe 2 and the cross section of the groove 13 of the embodiment, so that the conduction efficiency between the heat pipe and the groove can be further improved. Optionally, the cross section of the heat pipe 2 is consistent with the cross section of the groove 13 in the embodiment, so that a more perfect contact interface is formed.
Preferably, the shapes of the heat pipes 2 and the grooves 13 of the embodiment mode can be L-shaped, straight line-shaped and the like, and the U-shaped design can ensure that the contact area between the heat pipes 2 and heat loss is increased as much as possible under the condition that the number of the heat pipes is kept small, so that good heat transfer effect can be kept, and meanwhile, the cost of materials and the installation difficulty are reduced.
Preferably, the number of the heat pipes 2 can be 1 or more, 4 heat pipes are adopted in the embodiment of the utility model, and the heat pipes are designed in a pairwise symmetrical mode. After the electromagnetic parameters and the geometric shapes of the motor are researched, the number of the heat pipes 2 is set to 4, the contact heat source area of the heat pipes 2 can be ensured to be maximized, and the cost and the installation difficulty of materials are reduced under the condition that the heat pipes 2 have enough heat carrying capacity, and meanwhile, the heat transfer is ensured to keep a higher performance state.
In some embodiments, the heat pipe 2 is flat in shape, which maximizes contact with the heat source and makes more efficient use of the high thermal conductivity of the heat pipe. Alternatively, the heat pipe 2 is flat, so that the thickness of the heat pipe 2 is thin and the weight is light, the modification to the motor structure can be reduced, and the motor can strengthen the heat dissipation performance and achieve the design target of light weight.
In some embodiments, the heat pipe 2 is a copper-based heat pipe, and the copper-based heat pipe has the advantages of mature process, good heat conduction performance and thin thickness, and is suitable for being used as a component for enhancing heat transfer.
In some embodiments, the installation position of the heat pipe 2 is just above the coil winding 8, when the linear motor works, the coil winding 8 heats up, heat is transferred to the silicon steel sheet 3 through the iron core 9, the middle heat accumulation is the most serious area, and the arrangement, shape and installation position design of the heat pipe can ensure that the heat can be quickly and efficiently transferred for the second time to the greatest extent, thereby improving the heat exchange capacity of the motor and the outside and reducing the temperature rise of the coil winding 8.
In summary, through researching the geometric parameters, electromagnetic performance and operation conditions of the motor, the phase-change heat pipe 2 is embedded into the silicon steel sheet 3 of the motor, one end of the phase-change heat pipe 2 is contacted with the core high-temperature region of the iron core 9, and the other end of the phase-change heat pipe is contacted with the heat radiation fins 1 serving as cold sources, wherein heat conduction interface materials are arranged on the upper part and the lower part of the heat pipe, so that the heat resistance in the device surface contact process is reduced, and the effective transfer of heat is enhanced. Based on the characteristic of high heat conductivity of the phase-change heat pipe 2, ohmic heat generated by the coil winding 8 during operation is uniformly transferred from the winding assembly to the radiating fins 1 to be taken away by utilizing gas-liquid phase-change circulation formed inside the heat pipe 2. The design of the heat dissipation fins 1 can greatly improve the effective utilization of the heat dissipation structure to the air quantity and improve the heat dissipation efficiency of the motor. And the radiating fins 1 are locked on the rotor 6 through the fixing screws 10, so that the production and assembly difficulties are reduced. In summary, the heat dissipation structure can make the motor not easy to generate heat accumulation even if the motor runs for a long time, thereby realizing the requirements of light weight and miniaturization of the motor. In addition, the heat dissipation structure is simple, easy to produce and process, and has the advantages of energy conservation, low cost and the like.
The embodiment of the utility model is not the best known technology.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the essence of the present utility model are intended to be included within the scope of the present utility model.
Claims (10)
1. The utility model provides a linear electric motor heat radiation structure based on heat pipe, includes mutually supporting stator and active cell, the active cell slip set up in on the stator, its characterized in that still includes: the motor silicon steel sheet, the bottom of motor silicon steel sheet is connected with the iron core, the winding has the coil winding on the iron core, the upper portion of motor silicon steel sheet is provided with the recess, the embedding is many heat pipes of arranging in turn in the recess, the recess with fill between the heat pipe and be equipped with the heat conduction interface material, the top surface of motor silicon steel sheet is equipped with heat radiation fin, wherein, the heat pipe one end of arranging in turn with the iron core contact heat transfer, the other end with heat radiation fin contact heat transfer.
2. The heat pipe-based linear motor heat dissipation structure of claim 1, wherein a thermally conductive gasket is disposed between the heat dissipation fins and the heat pipe.
3. The heat pipe-based linear motor heat dissipation structure according to claim 1, wherein the stator comprises a magnetic steel and a guide rail, and the magnetic steel is laid along a length direction of the guide rail.
4. The heat pipe-based linear motor heat dissipation structure according to claim 1, wherein the heat pipes are in surface contact with the motor silicon steel sheet and the heat dissipation fins, respectively.
5. The heat pipe-based linear motor heat dissipation structure according to claim 1, wherein the side surface of the motor silicon steel sheet and the heat dissipation fins each have a fin-shaped heat dissipation case.
6. The heat pipe-based linear motor heat dissipation structure of claim 2, wherein the thermally conductive gasket is a thermally conductive carbon fiber gasket; the radiating fins are aluminum alloy radiating pieces.
7. The heat pipe-based linear motor heat dissipation structure according to claim 1, wherein the cross section of the groove is U-shaped, and the cross section of the heat pipe is matched with the U-shaped cross section of the groove.
8. The heat pipe-based linear motor heat dissipation structure as defined in claim 1, wherein the heat pipe has a flat shape.
9. The heat pipe-based linear motor heat dissipation structure of claim 1, wherein the heat pipe is a copper-based heat pipe; the heat-conducting interface material is heat-conducting silicone grease.
10. The heat pipe-based linear motor heat dissipation structure as defined in claim 1, wherein the heat pipe is installed directly above the coil winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320842934.4U CN219833931U (en) | 2023-04-12 | 2023-04-12 | Linear motor heat radiation structure based on heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320842934.4U CN219833931U (en) | 2023-04-12 | 2023-04-12 | Linear motor heat radiation structure based on heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219833931U true CN219833931U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320842934.4U Active CN219833931U (en) | 2023-04-12 | 2023-04-12 | Linear motor heat radiation structure based on heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219833931U (en) |
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2023
- 2023-04-12 CN CN202320842934.4U patent/CN219833931U/en active Active
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