Liquid cooling heat dissipation linear motor rotor and linear motor
By installing water-cooling components at both ends of the linear motor mover, and extending the water-cooling pipes in an "S" shape along the X-axis and connecting them in parallel with the Z-axis sub-pipes, the problem of poor heat dissipation is solved, and efficient heat dissipation and stable operation of the motor are achieved.
Patent Information
- Application Number
- CN202520233638.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing linear motors have poor heat dissipation, especially under high loads and high speeds, which causes the mover temperature to rise, affecting the motor's accuracy and stability.
Two sets of identical water-cooling components are set at both ends of the motor actuator assembly. The water-cooling pipes extend in an "S" shape around the coil along the X-axis to increase the contact area. They are also connected in parallel with sub-pipes along the Z-axis to ensure uniform heat absorption and rapid heat dissipation.
It improves the heat dissipation efficiency and stability of the motor, ensures high-precision operation of the motor and extends its service life, and avoids equipment damage caused by uneven heat dissipation.
Smart Images
Figure CN223613121U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to motor technical field, concretely relates to a linear motor moving element of liquid cooling heat dissipation and linear motor. BACKGROUND
[0002] In actual production, linear motor is widely applied in small machine tool, laser cutting, even industrial automation, medical equipment, logistics transportation and aerospace and many fields because of its high efficiency and high precision, but in the movement process of moving element, large electric energy is consumed when high load and high speed run, so a large amount of heat is generated to make moving element temperature rise, and temperature seriously influences the electrical conductivity of coil and then directly influences the precision of linear motor, therefore the pros and cons of heat dissipation effect have great influence on the operation of linear motor.
[0003] In prior art, motor heat dissipation system mainly has air cooling, liquid cooling and evaporation cooling and several modes, and different cooling systems have different cooling effects, in order to ensure the high efficiency and high precision operation of motor, the heat dissipation system of motor still needs to be improved, and in the current water cooling technology, the contact area of water cooling pipeline and motor is limited, so that the motor cannot uniformly and effectively dissipate heat. UTILITY MODEL CONTENT
[0004] (1) technical problem to be solved
[0005] The utility model provides a linear motor moving element of liquid cooling heat dissipation and linear motor, aims at solving the problem of poor heat dissipation effect of motor moving element.
[0006] (2) technical scheme
[0007] The utility model provides a linear motor moving element of liquid cooling heat dissipation, including moving element assembly and two groups of water cooling components that are arranged respectively at both ends of the moving element assembly and are same in structure, the moving element assembly includes core and a plurality of coils, the core includes base and a plurality of protrusions that are arranged on the base along the direction of X axle, the coil is respectively set on each protrusion, and the cooling groove is arranged between the adjacent coils, and at least part of the water cooling component is arranged in the cooling groove.
[0008] Among them, the water cooling component includes water cooling pipeline and cooling head that is connected to both ends of the water cooling pipeline, the water cooling pipeline includes straight section and curved section, the curved section extends along the direction of X axle and is in " S " shape around the coil, the straight section of two water cooling pipelines is arranged oppositely on both sides or the same side of the moving element assembly, and the length of the curved section of two water cooling pipelines in the direction of X axle is greater than or equal to the length of the core.
[0009] Further, the water cooling pipeline comprises a plurality of sub-pipelines arranged in sequence along the Z-axis direction, one end of the sub-pipeline is provided with a water inlet hole, the other end is provided with a water outlet hole, the water inlet hole and the water outlet hole are communicated, and the cooling head is provided with a through hole communicated with the water inlet hole or the water outlet hole of each sub-pipeline.
[0010] Further, adjacent sub-pipelines are closely fitted with each other, and the height of the sub-pipeline along the Z-axis direction is matched with the height of the coil.
[0011] Further, each sub-pipeline in the same water cooling pipeline is arranged in parallel with each other.
[0012] Further, the first insulating paper is arranged between the protrusion and the coil.
[0013] Further, the second insulating paper is arranged between the coil and the water cooling pipeline.
[0014] Further, the adjacent first insulating paper and the second insulating paper are integrally formed and arranged in a "U" shape structure.
[0015] Further, the water cooling pipeline is a metal material with good heat conduction performance.
[0016] Further, the material of the water cooling pipeline is copper or aluminum.
[0017] The utility model also provides a linear motor, including above described a liquid cooling heat dissipation's linear motor mobile.
[0018] Compared with the prior art, the utility model has the advantages that:
[0019] Two groups of water cooling assemblies which are same in structure are arranged at both ends of the motor mobile assembly, the water cooling assembly comprises a water cooling pipeline, one end of the water cooling pipeline is arranged in an "S" shape around the coil along the X-axis direction, so that the contact area of the water cooling pipeline and the motor mobile is maximized, the heat dissipation efficiency is improved, and the other end is arranged in a straight line, so that the water flow which absorbs heat is discharged at a faster speed, and the heat dissipation effect is better; in addition, the water cooling pipeline comprises a plurality of sub-pipelines arranged in sequence along the "Z" axis direction, and the sub-pipelines are arranged in parallel with each other and do not affect each other, so that the service life of the water cooling pipeline is improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a whole structure schematic view of the utility model.
[0021] Figure 2 It is a local schematic view of the coil and the core structure of the utility model.
[0022] Figure 3 It is an explosion view of the whole structure of the utility model.
[0023] Figure 4 Two kinds of embodiment diagrams of the straight section position of the water-cooled pipeline of the utility model.
[0024] Figure 5 Partial exploded view of the cooling head and the water-cooled pipeline of the utility model.
[0025] Figure 6 Partial sectional view of the cooling head and the water-cooled pipeline of the utility model.
[0026] Figure 7 Schematic diagram of the water flow direction of the water-cooled pipeline of the utility model.
[0027] Figure 8 Partial sectional view of embodiment one of the first insulating paper and the second insulating paper of the utility model.
[0028] Figure 9 Partial sectional view of embodiment two of the first insulating paper and the second insulating paper of the utility model.
[0029] Figure 10 Partial sectional view of embodiment three of the first insulating paper and the second insulating paper of the utility model.
[0030] Reference signs: 1 - motor assembly, 11 - core, 111 - base, 112 - protrusion, 12 - coil, 2 - water-cooled assembly, 21 - water-cooled pipeline, 211 - straight section, 212 - curved section, 213 - sub-pipeline, 2131 - water inlet hole, 2132 - water outlet hole, 22 - cooling head, 221 - through hole, 3 - cooling groove, 4 - first insulating paper, 5 - second insulating paper. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0032] Reference Figures 1-10 .
[0033] As Figures 1-4 shown, the utility model provides a kind of liquid cooling heat dissipation linear motor motor, including motor assembly 1 and respectively setting in the two groups of water-cooled assembly 2 of the both ends of the motor assembly 1 and same structure, by setting two groups of water-cooled assembly 2, the length of water flow through pipeline can be shortened, to accelerate the flow and replacement of water flow, avoid the water flow after absorbing heat cannot be quickly discharged, to affect the heat dissipation effect and the accuracy of movement of the motor assembly 1, especially in longer linear motion, the quantity of the water-cooled assembly 2 of the utility model is not limited to two groups.
[0034] The rotor assembly 1 comprises a core 11 and a plurality of coils 12, the core 11 comprises a base 111 and a plurality of protrusions 112 arranged on the base 111 in the X-axis direction, the protrusions 112 are arranged in a long strip structure in the Y-axis direction, the coils 12 are respectively sleeved on each protrusion 112, and a gap is further arranged between adjacent two coils 12, so that the slot fill rate of the motor can be appropriately adjusted as needed, so as to prevent the slot fill rate from being too high to cause the coil 12 to occupy too much slot space, thereby reducing the cross-sectional area of the heat dissipation channel and reducing the heat dissipation efficiency. The gap forms a cooling groove 3, as shown in Figure 2 The width of the cooling groove 3 is matched with the water cooling assembly 2, and the water cooling assembly 2 is at least partially arranged in the cooling groove 3, so that the rotor of the motor can be maximally contacted with the water cooling assembly 2 to increase the cooling area and improve the heat dissipation efficiency.
[0035] Specifically, the water cooling assembly 2 comprises a water cooling pipe 21 and a cooling head 22 connected to both ends of the water cooling pipe 21 respectively, the water cooling pipe 21 comprises a straight section 211 and a curved section 212, the curved section 212 extends in an "S" shape around the coil 12 in the X-axis direction, that is, both sides of each coil 12 are attached to the water cooling pipe 21, so that the water cooling pipe 21 is evenly distributed in the rotor of the motor, and the heat generated by the rotor of the motor can be quickly absorbed by the water cooling pipe 21; it should be noted that the length of the curved section 212 of the two water cooling pipes 21 in the X-axis direction is greater than or equal to the length L2 of the core 11, so that the heat generated by all the cores 11 of the rotor of the motor can be absorbed by the water cooling pipe 21, ensuring the uniformity of heat dissipation of the rotor of the motor, thereby improving the stability of the motor operation. The straight sections 211 of the two water cooling pipes 21 are respectively arranged on opposite sides or the same side of the rotor assembly 1, so that the cooling effect of both ends of the rotor assembly 1 is balanced, the service life of the motor is improved, and the high precision of the linear motor movement is ensured.
[0036] Further, as shown in Figure 5 , Figure 6As shown, the water cooling pipeline 21 comprises a plurality of sub-pipelines 213 arranged in sequence along the Z-axis direction, one end of the sub-pipeline 213 is provided with a water inlet hole 2131, the other end is provided with a water outlet hole 2132, the water inlet hole 2131 and the water outlet hole 2132 are communicated to ensure the flowability of the water cooling pipeline 21; the cooling head 22 is provided with a through hole 221 communicated with the water inlet hole 2131 or the water outlet hole 2132 of each sub-pipeline 213, that is, cold water is injected from the through hole 221 of the cooling head 22 at one end of the water cooling pipeline 21, and the cold water enters from the water inlet hole 2131 of each water cooling pipeline 21 and flows out from the water outlet hole 2132 at the other end, and finally the water flow of each water outlet hole 2132 flows out from the through hole 221 of the cooling head 22 at the other end of the water cooling pipeline 21, whereby each sub-pipeline 213 in the same water cooling pipeline 21 forms a parallel relationship with each other, and when any sub-pipeline 213 is blocked, it will not affect the operation of other sub-pipelines 213, so that other sub-pipelines 213 can continue to play a cooling function, so as to avoid damaging the motor and improve the service life of the motor.
[0037] Preferably, in the embodiment of the utility model, the free end of the curved section 212 is provided as a water inlet end, and the free end of the straight section 211 is provided with a water outlet end, as shown in the figure Figure 7 As shown, the water flow enters the curved section 212 first after entering the water inlet hole 2131, which can quickly transfer cold water to the motor rotor for the first time, so that the water cooling pipeline 21 can absorb the maximum heat of the motor rotor, improve the heat dissipation effect, and the water flow after absorbing heat will be heated, so that the heated water flow can be quickly discharged without turning when flowing through the straight section 211, quickly taking away the heat; and since the straight section 211 is arranged on one side of the rotor assembly 1 along the X-axis direction, compared with the curved section 212, the area of the straight section 211 in contact with the motor rotor is extremely small and there is a certain gap, so that the water flow after absorbing heat can avoid contacting the motor rotor again to prevent heat from being transferred to the motor rotor again.
[0038] Further, adjacent sub-pipelines 213 are closely fitted with each other, and the height thereof along the Z-axis direction is adapted to the height of the coil 12, so as to increase the contact area of the water cooling pipeline 21 with the motor rotor, so that the heat generated by the motor can be quickly and evenly absorbed by the water cooling pipeline 21, improving the efficiency of heat dissipation.
[0039] Preferably, as shown in the figure Figure 8As shown, since the coil 12 needs to generate a changing magnetic field by conducting electricity, the changing magnetic field will pass through the iron core 11, which can enhance the magnetic field as a magnetic conductive material. In order to avoid the electric contact between the coil 12 and the iron core 11, causing the leakage or the change of the path of the magnetic field, thereby affecting the normal operation of the motor, the first insulating paper 4 is arranged between the protrusion 112 and the coil 12. Since the insulating paper can be pre-made, the assembly of the motor is more convenient.
[0040] Further, the second insulating paper 5 is arranged between the coil 12 and the water-cooled pipe 21, which can prevent current leakage to avoid short circuit, equipment damage, and even electric shock accidents. At the same time, by arranging the second insulating paper 5, the electric field between the coil 12 and the water-cooled pipe 21 can be effectively isolated to prevent electric field interference and partial discharge phenomenon, thereby improving the performance and reliability of the equipment. If the insulation between the coil 12 and the water-cooled pipe 21 fails, it may also cause grounding failure of the cooling water system, affecting the normal circulation of the cooling water, and further affecting the heat dissipation effect of the equipment. Therefore, the arrangement of the first insulating paper 4 and the second insulating paper 5 is particularly important.
[0041] Preferably, in one embodiment, as shown in Figure 9 The first insulating paper 4 and the second insulating paper 5 are integrally formed and arranged in a "U" shape structure, that is, the first insulating paper 4 and the second insulating paper 5 can be unfolded on the same insulating paper. During installation, the insulating paper is arranged in a "U" shape and forms a "U" shaped groove by using the foldability of the paper. The longer sides of the coil 12 are respectively arranged in the "U" shaped grooves of different insulating papers, so that the isolation of the coil 12, the iron core 11, and the water-cooled pipe 21 can be realized at the same time, and the installation is more convenient and efficient.
[0042] Preferably, in one embodiment, as shown in Figure 10 The first insulating paper 4 and the second insulating paper 5 are integrally formed and arranged in a "W" shape structure, that is, the first insulating paper 4 and the second insulating paper 5 can be unfolded on the same insulating paper. During installation, the insulating paper is arranged in a "W" shape and forms two "U" shaped grooves by using the foldability of the paper. The longer sides of the coil 12 are respectively arranged in the two "U" shaped grooves of the same insulating paper. At this time, the top of the protrusion 112 covered by the coil 12 is also wrapped in the insulating paper, thereby realizing the isolation of the coil 12, the iron core 11, and the water-cooled pipe 21.
[0043] Further, the insulation material in the prior art is mostly insulation framework, but the insulation framework has a large volume, so that the motor occupies a large space and affects the slot fill ratio, thereby affecting the heat dissipation effect of the motor, so the utility model optimizes the insulation paper, which can ensure the normal operation of the motor performance and improve the slot fill ratio, so that the coil 12 and the water cooling pipeline 21 can effectively play the performance, and the motor is more compact and simple. The first insulation paper 4 and the second insulation paper 5 adopt good insulation materials, such as pure wood pulp insulation paper, Insulation paper.
[0044] Preferably, the water cooling pipeline 21 is a metal material with good heat conduction performance, so as to quickly absorb the heat generated by the motor and improve the heat dissipation efficiency.
[0045] Preferably, the material of the water cooling pipeline 21 is copper or aluminum. The heat conduction performance of copper is excellent, can quickly conduct heat, and has good mechanical properties, can withstand high pressure and mechanical stress. Aluminum has good heat conduction performance and low density, can effectively conduct heat and has light weight. In addition, aluminum has good processing performance and relatively low cost, is suitable for manufacturing complex water cooling pipeline 21 structure, and is beneficial to the efficient and high-precision operation of the motor.
[0046] The utility model also provides a kind of linear motor, including above-mentioned one kind of liquid cooling heat dissipation linear motor rotor.
[0047] The working principle of the utility model is described in detail as follows:
[0048] When operating, cold water is injected into the through hole 221 of the cooling head 22 of the two groups of water cooling pipelines 21 close to the curved section 212, respectively, and flows along the X-axis direction around the two sides of each coil 12 in "S" shape, and the heat generated by the motor is conducted to the water cooling pipeline 21 and absorbed by the water flow, thereby reducing the temperature of the motor. The water flow that has absorbed heat continues to flow in the water cooling pipeline 21 and flows out from the drain hole 2132 of the straight section 211 quickly, to realize the heat dissipation effect by circulation.
[0049] The utility model is characterized in that two groups of water cooling assemblies with the same structure are arranged at the two ends of the motor rotor assembly, the water cooling assembly includes a water cooling pipeline, one end of the water cooling pipeline extends in "S" shape along the X-axis direction around the coil to maximize the contact area of the water cooling pipeline and the motor rotor and improve the heat dissipation efficiency, and the other end is arranged in a straight line, so that the water flow that has absorbed heat can be discharged faster and the heat dissipation effect is better. In addition, the water cooling pipeline includes a plurality of sub-pipelines arranged in sequence along the "Z" axis direction, and the sub-pipelines are arranged in parallel with each other and do not affect each other, to improve the service life of the water cooling pipeline.
[0050] Furthermore, it should be understood that although the description is made according to the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and the skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that the skilled in the art can understand.
[0051] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting in any respect, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.
Claims
1. A liquid-cooled, thermally dissipated moving element of a linear motor, characterized in that, The motor assembly (1) comprises a core (11) and a plurality of coils (12), the core (11) comprises a base (111) and a plurality of protrusions (112) arranged on the base (111) in the X-axis direction, and the coils (12) are respectively sleeved on the protrusions (112); cooling grooves (3) are arranged between adjacent coils (12); the water cooling assembly (2) is arranged at least partially in the cooling grooves (3). The water cooling assembly (2) comprises a water cooling pipeline (21) and cooling heads (22) connected to both ends of the water cooling pipeline (21); the water cooling pipeline (21) comprises a straight section (211) and a curved section (212); the curved section (212) extends in the X-axis direction in an "S" shape around the coil (12); the straight sections (211) of the two water cooling pipelines (21) are oppositely arranged on both sides or the same side of the motor assembly (1); and the length of the curved section (212) of the two water cooling pipelines (21) in the X-axis direction is greater than or equal to the length L2 of the core (11).
2. The liquid-cooled heat-dissipation linear motor mover according to claim 1, characterized in that, The water cooling pipeline (21) comprises a plurality of sub-pipelines (213) arranged in sequence in the Z-axis direction; one end of the sub-pipeline (213) is provided with a water inlet hole (2131), and the other end is provided with a water outlet hole (2132); the water inlet hole (2131) and the water outlet hole (2132) are communicated; the cooling head (22) is provided with a through hole (221) communicated with the water inlet hole (2131) or the water outlet hole (2132) of each sub-pipeline (213).
3. The liquid-cooled heat-dissipation linear motor mover according to claim 2, characterized in that, Adjacent sub-pipelines (213) are tightly fitted with each other, and the height of the sub-pipeline (213) in the Z-axis direction is matched with the height of the coil (12).
4. The liquid-cooled heat-dissipation linear motor mover according to claim 3, characterized in that, Each sub-pipeline (213) in the same water cooling pipeline (21) is arranged in parallel with each other.
5. The liquid-cooled heat-dissipation linear motor mover according to claim 1, characterized in that, A first insulating paper (4) is arranged between the protrusion (112) and the coil (12).
6. The liquid-cooled heat-dissipation linear motor mover according to claim 5, characterized in that, A second insulating paper (5) is arranged between the coil (12) and the water cooling pipeline (21).
7. The liquid-cooled heat-dissipation linear motor mover according to claim 6, characterized in that, Adjacent first insulating papers (4) and second insulating papers (5) are integrally formed and arranged in a "U" shape structure.
8. The liquid-cooled heat-dissipation linear motor mover according to claim 1, characterized in that, The water cooling pipeline (21) is made of a metal material with good heat conduction performance.
9. The liquid-cooled heat-dissipating linear motor mover according to claim 8, characterized in that, The material of the water cooling pipeline (21) is copper or aluminum.
10. Linear motor, characterized in that The liquid-cooled heat dissipation linear motor motor comprises the liquid-cooled heat dissipation linear motor motor of any one of claims 1-9.