Rotor mounting seat, rotor assembly and linear motor
By designing a cooling channel structure with the first channel and the second channel in the actuator mount of the linear motor, the problem of poor heat dissipation effect in the prior art is solved, and better heat dissipation effect is achieved, thereby improving the motion positioning accuracy and processing accuracy.
Patent Information
- Application Number
- CN202420285522.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-05
AI Technical Summary
The heat dissipation structure of the existing linear motors is unreasonable, resulting in poor heat dissipation effect, which in turn affects the motion positioning accuracy and processing accuracy.
A rotor mount is designed, including a cooling channel, which consists of a first channel and a second channel. The cross-sectional area of the second channel is greater than the cross-sectional area of the first channel. This structure is used to improve the heat dissipation effect when the cooling medium flow rate is low.
By optimizing the structure of the cooling channel, the cooling medium flows faster in the first channel, which can quickly update and take away heat; while in the second channel, the cooling medium has a larger contact area and a longer heat exchange time, which comprehensively improves the heat dissipation effect and improves the heat dissipation performance of the actuator mount and actuator.
Smart Images
Figure CN222620874U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of linear motors, and in particular to a mover mounting seat, a mover assembly and a linear motor. Background Art
[0002] In recent years, with the continuous improvement of processing quality and motion positioning accuracy, linear motors have gained wider attention. Linear motors are a special type of motor whose rotor performs linear motion instead of traditional rotational motion. Linear motors have the characteristics of simple structure, fast response speed and easy maintenance. At present, linear motion modules equipped with linear motors are constantly maturing, and with their unparalleled advantages of high speed, high acceleration and high precision, they have gradually replaced traditional transmission methods such as lead screws and synchronous belts. The scope of application of linear motors has also been expanding, and it has been widely used in various automation equipment.
[0003] When the linear motor's mover is working, it needs to be connected to three-phase alternating current so that the mover and stator can interact with each other and generate electromagnetic thrust. However, under the continuous action of the current, the mover will generate heat. The heat generated by the mover will be transferred to the mounting plate in contact with it, causing thermal stress deformation of the mounting plate, which in turn leads to a decrease in motion positioning accuracy, and thus a decrease in the processing accuracy of the entire equipment.
[0004] In the related art, in order to maintain the stability of the motion positioning accuracy of the linear motor, the mover mounting plate is cooled by a cooling medium such as air. However, the heat dissipation structure layout of the existing mover mounting plate is unreasonable, resulting in poor heat dissipation effect. Utility Model Content
[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a mover mounting seat, which can effectively improve the heat dissipation effect when the flow rate of the cooling medium is low.
[0006] The present application also proposes a mover assembly having the above-mentioned mover mounting seat.
[0007] The present application also proposes a linear motor having the above-mentioned mover assembly.
[0008] According to the mover mounting seat of the first aspect of the present application, the mover mounting seat is provided with a cooling channel, the cooling channel is used to pass a cooling medium, the direction in which the cooling medium passes through the cooling channel is set as a first direction, and the surface perpendicular to the first direction is set as a first plane, and the cooling channel includes:
[0009] First channel;
[0010] The second channel is connected to the first channel, the second channel and the first channel are arranged in sequence along the first direction, and the cross-sectional area of the second channel cut by the first plane is larger than the cross-sectional area of the first channel cut by the first plane.
[0011] According to the movable submount according to the embodiment of the present application, at least the following beneficial effects are achieved: the cross-sectional area of the second channel cut off by the first plane is larger than the cross-sectional area of the first channel cut off by the first plane, that is, the cross-sectional area of the first channel is smaller; according to the continuous medium theory, when the flow rate of the cooling medium is constant, the cross-sectional area of the first channel is smaller, then the flow rate of the cooling medium through the first channel will be faster; the larger the cross-sectional area of the second channel, the larger the contact area between the cooling medium and the movable submount, the slower the flow rate of the cooling medium, and the longer the heat exchange time between the cooling medium and the movable submount; the faster the flow rate of the cooling medium in the first channel, the more conducive to the rapid renewal of the cooling medium, thereby taking away the heat as quickly as possible; when the first channel is used in conjunction with the second channel, the contact area between the cooling medium and the movable submount, the heat exchange time, and the cooling medium renewal speed can be taken into account, and the heat dissipation is better.
[0012] According to some embodiments of the present application, one of the second channels and one of the first channels sequentially arranged along the first direction constitute a cooling group, and the cooling channel includes at least two cooling groups, each of which is arranged along the first direction.
[0013] According to some embodiments of the present application, the mover mounting seat, the first channel and the second channel are all in the shape of a rectangular parallelepiped, and the height direction of the first channel and the height direction of the second channel are parallel to the height direction of the mover mounting seat.
[0014] According to some embodiments of the present application, a height H2 of the second channel is greater than a height H1 of the first channel.
[0015] According to some embodiments of the present application, the length direction of the second channel is perpendicular to the first direction, the length direction of the first channel is parallel to the first direction, and the length L2 of the second channel is greater than the width W1 of the first channel.
[0016] According to some embodiments of the present application, the second direction is perpendicular to the first direction, and the first channel includes at least two sub-channels, each of the sub-channels is arranged in parallel along the second direction, and each of the sub-channels is connected to the second channel respectively.
[0017] According to some embodiments of the present application, the cooling channel is provided with a cooling medium outlet, and the mover mounting seat further includes:
[0018] The muffler is provided with a muffler channel, the muffler is fixed to the mover mounting seat, and the muffler channel is communicated with the cooling medium outlet.
[0019] According to the second aspect of the present application, a mover assembly includes:
[0020] The above-mentioned mover mounting seat;
[0021] The mover is fixedly connected to the mover mounting seat, and the mover includes a coil or a permanent magnet.
[0022] The mover assembly according to the embodiment of the present application has at least the following beneficial effects: by using the above-mentioned mover mounting seat, the heat dissipation effect of the mover mounting seat and the mover is improved.
[0023] According to some embodiments of the present application, the cooling channel is provided with an opening, and the mover closes the opening.
[0024] A linear motor according to a third aspect of the present application includes:
[0025] Base;
[0026] The above-mentioned mover assembly, the mover mounting seat is slidably connected to the base;
[0027] A stator is fixedly connected to the base, and is used to drive the mover to move relative to the base.
[0028] The linear motor according to the embodiment of the present application has at least the following beneficial effects: by using the above-mentioned mover assembly, it is beneficial to improve the heat dissipation effect of the mover mounting seat and the mover, which is beneficial to ensure the stability of the motion positioning accuracy of the linear motor.
[0029] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:
[0031] Figure 1 A schematic diagram of a mover mounting plate according to a first embodiment of the present application;
[0032] Figure 2 for Figure 1 A cross-sectional view of the middle mover mounting plate;
[0033] Figure 3 A schematic diagram of a mover mounting plate according to a second embodiment of the present application;
[0034] Figure 4A three-dimensional diagram of a moving subassembly according to an embodiment of the present application;
[0035] Figure 5 This is a three-dimensional diagram of a linear motor according to an embodiment of the present application.
[0036] Reference numerals: mover mounting seat 100 , first channel 111 , second channel 112 , inlet 113 , cooling medium outlet 114 , opening 115 , sub-channel 121 ;
[0037] Muffler 200, muffler channel 210;
[0038] Movers 300;
[0039] Stator 400;
[0040] Base 500. DETAILED DESCRIPTION
[0041] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0042] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0043] In the description of this application, "several" means one or more than one, "more" means two or more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0044] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0045] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0046] Reference Figure 1 According to the first aspect of the present application, the mover mounting seat 100 is provided with a cooling channel 110, and the cooling channel 110 is used to pass the cooling medium. The direction in which the cooling medium passes through the cooling channel 110 is a first direction (refer to Figure 1 , for example, the first direction is the backward direction), and the surface perpendicular to the first direction is the first plane (refer to Figure 1 , for example, the first plane is a plane jointly determined by the up-down direction and the left-right direction), the cooling channel 110 includes a first channel 111 and a second channel 112. The second channel 112 is connected to the first channel 111, and the second channel 112 and the first channel 111 are arranged in sequence along the first direction, and the cross-sectional area of the second channel 112 cut by the first plane is greater than the cross-sectional area of the first channel 111 cut by the first plane.
[0047] According to the mover mounting seat 100 of the embodiment of the present application, at least the following beneficial effects are achieved: the cross-sectional area of the second channel 112 cut off by the first plane is greater than the cross-sectional area of the first channel 111 cut off by the first plane, that is, the cross-sectional area of the first channel 111 is smaller; according to the continuous medium theory, when the flow rate of the cooling medium is constant, the cross-sectional area of the first channel 111 is smaller, then the flow rate of the cooling medium flowing through the first channel 111 will be faster; the cross-sectional area of the second channel 112 is large, then the contact area between the cooling medium and the mover mounting seat 100 is larger, the flow rate of the cooling medium is slower, and the heat exchange time between the cooling medium and the mover mounting seat 100 is also longer; the cooling medium flow rate in the first channel 111 is faster, which is conducive to the rapid renewal of the cooling medium, thereby taking away the heat as soon as possible; the first channel 111 is used in conjunction with the second channel 112, the contact area between the cooling medium and the mover mounting seat 100, the heat exchange time, and the cooling medium renewal speed can be taken into account, and the heat dissipation is better.
[0048] Specifically, the cooling medium may be air or water.
[0049] Reference Figure 1In some embodiments of the present application, a second channel 112 and a first channel 111 arranged in sequence along a first direction are defined as a cooling group, and the cooling channel 110 includes at least two cooling groups, each of which is arranged along the first direction.
[0050] By providing at least two cooling groups, the proportion of the second channel 112 to the first channel 111 in the cooling channel 110 can be increased, thereby facilitating an improvement in the cooling effect.
[0051] Specifically, the number of cooling groups may be two, three, four or other numbers.
[0052] Reference Figure 1 In some embodiments of the present application, the mover mounting seat 100, the first channel 111 and the second channel 112 are all in the shape of a rectangular parallelepiped, and the height direction of the first channel 111 and the height direction of the second channel 112 are parallel to the height direction of the mover mounting seat 100.
[0053] By making the height direction of the first channel 111 and the height direction of the second channel 112 parallel to the height direction of the mover mounting seat 100, the plane defined by the length direction and the width direction of the first channel 111 and the second channel 112 is parallel to the plane defined by the length direction and the width direction of the mover mounting seat 100, that is, the surface with a larger area of the first channel 111 and the second channel 112 is parallel to the surface with a larger area of the mover mounting seat 100. In this way, the shape of the mover mounting seat 100 can be fully utilized, so that the contact area between the mover mounting seat 100 and the cooling medium is larger, and the heat dissipation effect of the cooling medium is better.
[0054] Reference Figure 1 and Figure 2 According to some embodiments of the present application, a height H2 of the second channel 112 is greater than a height H1 of the first channel 111 .
[0055] By making the height H2 greater than the height H1 , the cross-sectional area of the second channel 112 cut by the first plane is advantageously greater than the cross-sectional area of the first channel 111 cut by the first plane, thereby facilitating the heat dissipation effect of the cooling medium.
[0056] Reference Figure 1 In some embodiments of the present application, the length direction of the second channel 112 is perpendicular to the first direction, the length direction of the first channel 111 is parallel to the first direction, and the length L2 of the second channel 112 is greater than the width W1 of the first channel 111 .
[0057] In the case where the first channel 111 and the second channel 112 are both rectangular, by defining that "the length direction of the second channel 112 is perpendicular to the first direction, the length direction of the first channel 111 is parallel to the first direction, and the length L2 of the second channel 112 is greater than the width W1 of the first channel 111", it is beneficial to fully utilize the shapes of the first channel 111 and the second channel 112 themselves, so as to achieve the effect that the cross-sectional area of the second channel 112 cut by the first plane is greater than the cross-sectional area of the first channel 111 cut by the first plane.
[0058] Reference Figure 3 In some embodiments of the present application, the second direction is perpendicular to the first direction, and the first channel 111 includes at least two sub-channels 121. The sub-channels 121 are arranged in parallel along the second direction, and the sub-channels 121 are respectively connected to the second channel 112.
[0059] By providing at least two sub-channels 121 , the cooling medium at each position in the second channel 112 can flow smoothly into the first channel 111 , and the cooling medium is not likely to stay in the second channel 112 , thereby facilitating improving the heat dissipation effect.
[0060] Specifically, the number of the sub-channels 121 may be two, three, four or other numbers.
[0061] Reference Figure 1 and Figure 4 According to some embodiments of the present application, the cooling channel 110 is provided with a cooling medium outlet 114 and further includes a muffler 200 . The muffler 200 is provided with a muffler channel 210 , the muffler 200 is fixed to the mover mounting seat 100 , and the muffler channel 210 is communicated with the cooling medium outlet 114 .
[0062] Adding the muffler 200 is helpful to reduce noise, thereby protecting the working environment.
[0063] It should be noted that, refer to Figure 3 The cooling channel 110 is usually further provided with an inlet 113 , and the inlet 113 is used for the cooling medium to enter the cooling channel 110 .
[0064] Reference Figure 4 According to the second aspect of the present application, the mover assembly includes a mover mounting seat 100 and a mover 300. The mover 300 is fixedly connected to the mover mounting seat 100, and the mover 300 includes a coil or a permanent magnet.
[0065] The mover assembly according to the embodiment of the present application has at least the following beneficial effects: by using the above-mentioned mover mounting seat 100 , it is helpful to improve the heat dissipation effect of the mover mounting seat 100 and the mover 300 .
[0066] Reference Figure 3and Figure 4 In some embodiments of the present application, the cooling channel 110 is provided with an opening 115 , and the mover 300 closes the opening 115 .
[0067] By providing the opening 115 on the cooling channel 110 , the mover 300 can be in direct contact with the cooling medium in the cooling channel 110 , thereby facilitating the improvement of the heat dissipation effect of the cooling medium on the mover 300 .
[0068] Reference Figure 5 According to the third aspect of the linear motor of the present application, the linear motor comprises a base 500 and a mover assembly. The mover mounting seat 100 is slidably connected to the base 500. The stator 400 is fixedly connected to the base 500, and the stator 400 is used to drive the mover 300 to move relative to the base 500.
[0069] The linear motor according to the embodiment of the present application has at least the following beneficial effects: by using the above-mentioned mover assembly, it is beneficial to improve the heat dissipation effect of the mover mounting seat 100 and the mover, which is beneficial to ensure the stability of the motion positioning accuracy of the linear motor.
[0070] Specifically, the sliding connection between the mover mounting seat 100 and the base 500 can be realized by a slider and a slide rail. The stator 400 is used to drive the mover 300 to move relative to the base 500, that is, when the stator 400 is a permanent magnet, the mover 300 is a winding, and when the stator 400 is a winding, the mover 300 is a permanent magnet. After the winding is powered on, the mover 300 can be driven to move.
[0071] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
Claims
1. The mover mounting seat is characterized by: The mover mounting seat is provided with a cooling channel, the cooling channel is used to pass a cooling medium, the direction in which the cooling medium passes through the cooling channel is set as a first direction, and the surface perpendicular to the first direction is set as a first plane, and the cooling channel includes: First channel; The second channel is connected to the first channel, the second channel and the first channel are arranged in sequence along the first direction, and the cross-sectional area of the second channel cut by the first plane is larger than the cross-sectional area of the first channel cut by the first plane.
2. The mover mounting seat according to claim 1, characterized in that: It is assumed that one of the second channels and one of the first channels sequentially arranged along the first direction constitute a cooling group, and the cooling channel includes at least two cooling groups, and each of the cooling groups is arranged along the first direction.
3. The mover mounting seat according to claim 1, characterized in that: The mover mounting seat, the first channel and the second channel are all in a rectangular parallelepiped shape, and the height direction of the first channel and the height direction of the second channel are parallel to the height direction of the mover mounting seat.
4. The mover mounting seat according to claim 3, characterized in that: A height H2 of the second channel is greater than a height H1 of the first channel.
5. The mover mounting seat according to claim 3, characterized in that: The length direction of the second channel is perpendicular to the first direction, the length direction of the first channel is parallel to the first direction, and the length L2 of the second channel is greater than the width W1 of the first channel.
6. The mover mounting seat according to claim 1, characterized in that: Assume that the second direction is perpendicular to the first direction, the first channel includes at least two sub-channels, each of the sub-channels is arranged in parallel along the second direction, and each of the sub-channels is connected to the second channel respectively.
7. The mover mounting seat according to claim 1, characterized in that: The cooling channel is provided with a cooling medium outlet, and the mover mounting seat further comprises: The muffler is provided with a muffler channel, the muffler is fixed to the mover mounting seat, and the muffler channel is communicated with the cooling medium outlet.
8. A moving subassembly, characterized in that: include: The mover mounting seat according to any one of claims 1 to 7; The mover is fixedly connected to the mover mounting seat, and the mover includes a coil or a permanent magnet.
9. The mover assembly according to claim 8, characterized in that: The cooling channel is provided with an opening, and the mover closes the opening.
10. A linear motor, characterized in that: include: Base; The mover assembly according to claim 8 or 9, wherein the mover mounting seat is slidably connected to the base; A stator is fixedly connected to the base, and is used to drive the mover to move relative to the base.