Cooling components and linear motor
By introducing flow dividers and groove structures into the cooling channels of linear motors, laminar flow is disrupted and turbulent mixing is enhanced, solving the problems of uneven flow velocity and uneven heat transfer in the cooling channels, achieving efficient and uniform heat transfer, and the design is detachable for flexible configuration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DIREC SEIKO (SHENZHEN) CO LTD
- Filing Date
- 2026-01-09
- Publication Date
- 2026-05-26
AI Technical Summary
The existing linear motor has a constant cooling channel cross-section, which leads to uneven flow velocity, uneven heat transfer, and low heat transfer efficiency.
The system combines a sealing plate and a cooling plate. The cooling channel is equipped with a flow divider and a groove. The flow divider is narrow at the front and wide at the back or narrow at the front and back and wide in the middle. The groove has a guide surface on the back side. When the cooling medium passes through, it is divided and disturbed, which enhances turbulent mixing.
It improves the uniformity and efficiency of heat transfer, and the detachable design of the cooling components allows for flexible application and adaptability to different working conditions.
Smart Images

Figure CN122092589A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of linear motor technology, and more particularly to a cooling assembly and a linear motor. Background Technology
[0002] In high-end industries such as semiconductors and new energy, the temperature rise of linear motors is a core metric determining their performance and lifespan. Effectively controlling heat through advanced cooling solutions to maintain the motor at its optimal operating temperature is crucial for improving its operational performance and long-term stability.
[0003] In the existing technology, the cooling channels of linear motors are mostly of constant cross-section. Channels with constant interfaces are prone to uneven heat transfer and low heat transfer efficiency due to uneven flow velocity in the boundary layer and insufficient fluid mixing. Summary of the Invention
[0004] The technical problem to be solved by the embodiments of the present invention is to provide a cooling component and a linear motor to improve heat transfer efficiency.
[0005] To address the aforementioned technical problems, this invention provides a cooling assembly comprising a sealing plate and a cooling plate. The cooling plate has cooling channels, and the sealing plate and the cooling plate are correspondingly and sealed together. Several diversion blocks are sequentially spaced along the flow direction of the cooling medium within the cooling channels.
[0006] Furthermore, the diverter block is narrow at the front and wide at the back, or narrow at both ends and wide in the middle.
[0007] Furthermore, the diverter block is triangular, teardrop-shaped, bullet-shaped, or spindle-shaped, with a smaller front and a larger back.
[0008] Furthermore, grooves are provided on the sidewalls of the cooling channels on both sides of each flow divider.
[0009] Furthermore, the flow divider block is centrally located in the cooling channel.
[0010] Furthermore, a flow guide surface is provided on the rear side of the groove.
[0011] Furthermore, the inlet and outlet of the cooling channel are located on the same side of the cooling plate.
[0012] Furthermore, the cooling plate is provided with threaded holes for fixing and connecting other components.
[0013] Accordingly, embodiments of the present invention also provide a linear motor, including a mover and the aforementioned cooling assembly, the cooling assembly being disposed on the mover.
[0014] Furthermore, it also includes screws. The cooling plate, sealing plate, and mover are respectively provided with countersunk holes, through holes, and screw holes. The screws pass through the countersunk holes, through holes, and screw holes to fix the cooling components to the mover.
[0015] The beneficial effects of this invention are as follows: This invention introduces structured disturbances into the flow channel cross-section, disrupting laminar flow and enhancing turbulence, accelerating lateral fluid mixing, and resulting in a more uniform temperature across the entire cross-section, thereby achieving more efficient and uniform heat transfer. The detachable design of this invention makes it more flexible and convenient to use; users can configure it independently according to different working conditions to suit various application scenarios. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a linear motor according to an embodiment of the present invention.
[0017] Figure 2 This is an exploded view of the linear motor according to an embodiment of the present invention.
[0018] Figure 3 This is an exploded view of the cooling assembly according to an embodiment of the present invention.
[0019] Figure 4 This is a top view of the cooling plate according to an embodiment of the present invention.
[0020] Figure 5 This is a schematic diagram of the flow direction of the cooling medium in the cooling channel according to an embodiment of the present invention.
[0021] Explanation of icon numbers 10. Cooling plate, 11. Cooling channel, 12. Flow divider, 13. Groove, 14. Guide surface, 15. Inlet, 16. Outlet, 17. Threaded hole, 18. Countersunk hole, 19. Cooling pipe connector, 20. Sealing plate, 21. Through hole, 30. Moving part, 31. Screw hole, 32. Screw. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0024] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0025] Please refer to Figures 1-2 The linear motor in this embodiment of the invention includes a mover, a cooling assembly, and screws. The cooling assembly is mounted on the mover via the screws. Please refer to... Figures 2-4 The cooling assembly of this invention includes a sealing plate and a cooling plate, with cooling channels provided on the cooling plate. The cooling plate, sealing plate, and mover are respectively provided with countersunk holes, through holes, and screw holes. Screws pass through the countersunk holes, through the through holes, and through the screw holes to fix the cooling assembly to the mover.
[0026] The sealing plate and cooling plate are connected in a sealed manner. The sealing plate is a thin metal sheet, preferably 0.2-0.5 mm thick. The thinner sheet allows heat from the linear motor's mover to be quickly transferred to the cooling channel. Copper is the preferred material due to its high thermal conductivity, followed by aluminum or stainless steel. The sealing plate and cooling plate can be bonded together using an adhesive with high thermal conductivity to create a seal and prevent leakage of the cooling medium. Thermally conductive adhesives and epoxy resins are preferred.
[0027] Several flow dividers are spaced apart along the flow direction of the cooling medium within the cooling channel. The function of the flow dividers is to divert and agitate the cooling medium, thereby facilitating more efficient heat exchange. The flow dividers are narrower at the front and wider at the back, meaning their cross-sectional area gradually increases along the flow direction; or they are narrower at the front and back and wider in the middle, such as a spindle shape, so that even if the inlet and outlet are reversed, the heat dissipation effect is not affected.
[0028] In one implementation, the diverter block is triangular, teardrop-shaped, bullet-shaped, or spindle-shaped, with a smaller front and a larger back.
[0029] In one implementation, grooves are provided on the sidewalls of the cooling channels on both sides of each flow divider block. The function of the grooves is to increase the contact area of the cooling medium within a limited space. Preferably, the flow divider block is centrally located in the cooling channel, and preferably, the grooves on both sides of the flow divider block are symmetrical. A guide surface is provided behind the groove, and the function of the guide surface is to guide the cooling medium forward along the flow direction of the cooling medium. Preferably, the guide surface is an inclined surface that slopes backward along the flow direction of the cooling medium.
[0030] In one implementation, the inlet and outlet of the cooling channel are located on the same side of the cooling plate. Cooling pipe joints are provided at the inlet and outlet.
[0031] Please refer to Figure 5The cooling medium enters the cooling channel of the cooling plate through the inlet. When the cooling medium encounters the flow divider, it will be divided into the grooves on both sides, which will play the role of flow division and turbulence, so that the heat exchange is more complete. The cooling medium will continue to move forward along the guide surface, and so on.
[0032] In one implementation, the cooling plate is provided with threaded holes for fixing and connecting other components.
[0033] The cooling component of this invention can be assembled independently and does not need to be manufactured together with the linear motor mover. It can be configured independently by the user when needed. The detachable design makes it more flexible and convenient to use.
[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cooling assembly, comprising a sealing plate and a cooling plate, wherein the cooling plate is provided with cooling channels, and the sealing plate and the cooling plate are correspondingly and sealingly connected, characterized in that, Several flow dividers are arranged at intervals along the flow direction of the cooling medium in the cooling channel.
2. The cooling assembly as claimed in claim 1, characterized in that, The diverter block is narrow at the front and wide at the back, or narrow at the front and back and wide in the middle.
3. The cooling assembly as claimed in claim 1, characterized in that, The diverter block is triangular, teardrop-shaped, bullet-shaped, or spindle-shaped, with a smaller front and a larger back.
4. The cooling assembly as claimed in claim 1, characterized in that, Grooves are provided on the sidewalls of the cooling channels on both sides of each flow divider.
5. The cooling assembly as claimed in claim 4, characterized in that, The flow divider block is centrally located in the cooling channel.
6. The cooling assembly as claimed in claim 4, characterized in that, A flow guide surface is provided on the rear side of the groove.
7. The cooling assembly as claimed in claim 1, characterized in that, The inlet and outlet of the cooling channel are located on the same side of the cooling plate.
8. The cooling assembly as claimed in claim 1, characterized in that, The cooling plate has threaded holes for fixing and connecting other components.
9. A linear motor, comprising a mover, characterized in that, It also includes a cooling assembly as described in any one of claims 1 to 8, the cooling assembly being disposed on the mover.
10. The linear motor as described in claim 9, characterized in that, It also includes screws. The cooling plate, sealing plate, and mover are respectively provided with countersunk holes, through holes, and screw holes. The screws pass through the countersunk holes, through holes, and screw holes to fix the cooling components to the mover.