Stator structure of linear motor

Abstract

The utility model discloses a stator structure of a linear motor, which comprises a protective heat dissipation inner partition plate, a bottom heat dissipation frame plate is arranged at the bottom of the protective heat dissipation inner partition plate, an air inlet heat dissipation net plate is detachably mounted in the top end of the bottom heat dissipation frame plate, a mounting groove is formed in the bottom heat dissipation frame plate, and the air inlet heat dissipation net plate is detachably mounted in the mounting groove. And a sealing assembly is movably mounted in the mounting groove, a heat dissipation assembly is arranged in the bottom heat dissipation frame plate, through the arrangement of the heat dissipation assembly, one motor can drive three areas to conduct heat dissipation, and uniform heat dissipation is achieved. And by arranging the sealing assembly, dust is prevented from entering the heat dissipation holes, meanwhile, the bottom space of the heat dissipation frame plate can be opened, and the heat dissipation effect is achieved. And by arranging the control assembly, cooperative control of different states can be performed on the sealing assembly and the heat dissipation assembly, so that the automation degree of the device is improved, the heat dissipation function is more intelligent, the internal temperature change is adjusted in time, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of linear motor technology, and more specifically, to a stator structure for a linear motor. Background Technology

[0002] Linear motor-driven logistics transmission equipment represents an application and trend of modern advanced logistics transmission technology. It directly converts electrical energy into mechanical energy for linear motion without any intermediate conversion mechanism. It has the advantages of simple structure, no contact, no wear, low noise, high speed, and high precision.

[0003] A search revealed that Chinese Patent CN 220822716 U discloses a linear motor stator structure with good heat dissipation performance, relating to the technical field of linear motor stator structures. This linear motor stator structure aims to solve the technical problems of existing linear motor stator structures lacking protective structures and corresponding stable placement structures. The linear motor stator structure includes a linear motor stator body, a magnetic plate installed inside the linear motor stator body, and a bottom protective heat dissipation assembly disposed inside the linear motor stator body. Two mounting components are provided on the outer side of the linear motor stator body, and an internal rapid heat dissipation assembly is provided at the upper end of the bottom protective heat dissipation assembly. A magnet is provided inside the linear motor stator body for mounting the top end. This linear motor stator structure allows for airflow cooling of the linear motor stator body from the bottom through the bottom protective heat dissipation assembly, while the internal rapid heat dissipation assembly accelerates the overall heat dissipation efficiency of the linear motor stator body.

[0004] While the aforementioned patented technology can dissipate heat, the fixed fan position results in uneven heat distribution, particularly on both sides of the heat sink frame. Furthermore, since the heat dissipation holes are always open, dust can enter them when the motor is not running, affecting the heat dissipation effect. Additionally, it cannot adjust and control the temperature inside the stator in a timely manner. Utility Model Content

[0005] The purpose of this invention is to provide a stator structure for a linear motor. By setting up a heat dissipation component, one motor can drive three areas for heat dissipation, achieving uniform heat dissipation. By setting up a sealing component, dust is prevented from entering the heat dissipation holes. At the same time, the bottom space of the heat dissipation frame plate can be opened to achieve a heat dissipation effect. By setting up a control component, the sealing component and the heat dissipation component can be coordinated and controlled in different states, thereby improving the automation level of the device, making the heat dissipation function more intelligent, adjusting in a timely manner according to internal temperature changes, and improving the practicality of the device.

[0006] The present invention adopts the following technical solution.

[0007] A stator structure for a linear motor includes a protective heat dissipation inner partition. A bottom heat dissipation frame is provided at the bottom of the protective heat dissipation inner partition. An air inlet heat dissipation mesh is detachably installed inside the top of the bottom heat dissipation frame. An installation groove is formed inside the bottom heat dissipation frame. A sealing component is movably installed inside the installation groove. A heat dissipation component is provided inside the bottom heat dissipation frame. Both the heat dissipation component and the sealing component are electrically connected to a control component. The installation groove includes a motor slot. A shaft slot is integrally formed on the side of the motor slot. A plurality of worm slots are integrally formed in the middle of the shaft slot. A worm wheel slot is integrally formed at the top of the worm slot. A limit groove is integrally formed at the end of the shaft slot away from the motor slot.

[0008] The heat dissipation assembly includes a variable frequency motor, a fan blade 1 is fixedly sleeved on the output shaft of the variable frequency motor, a drive gear is fixedly installed at the bottom center of the fan blade 1, a transmission belt is meshed on the surface of the drive gear, driven gears are meshed inside the left and right ends of the transmission belt, a fan blade 2 is integrally formed at the top of the driven gear, a fixed frame is rotatably installed inside the top of the fan blade 2, and the left and right sides of the top of the fixed frame are respectively fixedly installed on the front and rear sides of the inner wall of the bottom heat dissipation frame plate;

[0009] The sealing assembly includes a servo motor, the output shaft of which is fixedly sleeved with a rotating shaft, a worm gear integrally formed on the surface of the rotating shaft, a worm wheel meshing on the surface of the worm gear, a limit shaft integrally formed on one side of the worm wheel, a sealing plate fixedly mounted on the surface of the limit shaft, and the sealing plate rotatably mounted on the bottom side of the heat sink frame plate.

[0010] The control component includes a controller, on the surface of which are electrically connected wires one, two, and three. One end of wire one is electrically connected to a servo motor. One end of wire two is fixedly mounted with a fixing ring, which is fixedly mounted on the outer wall of the variable frequency motor. Wire two is electrically connected to the variable frequency motor through the fixing ring. One end of wire three is electrically connected to a temperature sensor.

[0011] Furthermore, the bottom of the variable frequency motor is fixedly installed in the middle of the heat dissipation frame plate.

[0012] Furthermore, a limiting rod is fixedly installed at one end of the rotating shaft, the limiting rod is rotatably installed inside the limiting groove, the rotating shaft is rotatably installed inside the rotating shaft groove, and the size of the worm gear is adapted to the size of the worm gear groove.

[0013] Furthermore, the number of worms is six, and the six worms are divided into three groups. Each group of worms is arranged from left to right on the surface of the rotating shaft, and the helical direction of each group of worms is set to the opposite direction.

[0014] Furthermore, there are two temperature sensors, which are fixedly installed on the left and right sides inside the heat sink frame plate, respectively.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting up a heat dissipation component, one motor can drive three areas to dissipate heat, achieving uniform heat dissipation.

[0017] 2. By setting up a sealing component, dust is prevented from entering the heat dissipation holes. At the same time, the bottom space of the heat dissipation frame plate can be opened to achieve the effect of heat dissipation.

[0018] 3. By setting up control components, the sealing components and heat dissipation components can be coordinated and controlled in different states, thereby improving the automation level of the device, making the heat dissipation function more intelligent, adjusting in a timely manner to internal temperature changes, and improving the practicality of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal three-dimensional assembly structure of the bottom heat dissipation frame plate in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the bottom heat dissipation frame plate in this utility model;

[0022] Figure 4 This is a schematic diagram of the heat dissipation component structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the sealing component structure in this utility model;

[0024] Figure 6 This is a schematic diagram of the control component structure in this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Protective heat dissipation inner partition; 2. Bottom heat dissipation frame plate; 3. Air inlet heat dissipation mesh plate; 4. Heat dissipation assembly; 5. Sealing assembly; 6. Control assembly; 201. Motor slot; 202. Shaft slot; 203. Worm slot; 204. Limit slot; 205. Worm wheel slot; 401. Variable frequency motor; 402. Fan blade one; 403. Drive gear; 404. Drive belt; 405. Driven gear; 406. Fan blade two; 407. Fixing frame; 501. Servo motor; 502. Shaft; 503. Worm; 504. Limit rod; 505. Worm wheel; 506. Sealing plate; 601. Controller; 602. Wire one; 603. Wire two; 604. Fixing ring; 605. Wire three; 606. Temperature sensor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] Please see Figure 1-6A stator structure for a linear motor includes a protective heat dissipation inner partition 1. A bottom heat dissipation frame 2 is provided at the bottom of the protective heat dissipation inner partition 1. An air inlet heat dissipation mesh 3 is detachably installed inside the top of the bottom heat dissipation frame 2. An installation groove is provided inside the bottom heat dissipation frame 2. A sealing component 5 is movably installed inside the installation groove. A heat dissipation component 4 is provided inside the bottom heat dissipation frame 2. Both the heat dissipation component 4 and the sealing component 5 are electrically connected to a control component 6. The installation groove includes a motor groove 201. A shaft groove 202 is integrally formed on the side of the motor groove 201. A plurality of worm grooves 203 are integrally formed in the middle of the shaft groove 202. A worm wheel groove 205 is integrally formed at the top of the worm grooves 203. A limiting groove 204 is integrally formed at the end of the shaft groove 202 away from the motor groove 201.

[0032] It should be noted that the protective heat dissipation inner partition 1 and the air inlet heat dissipation mesh 3 in this application are both components with the same names in the prior art documents and belong to existing mature technology. Therefore, the connection between the two and the related structure and connection relationship with other components will not be described in detail in this application.

[0033] The heat dissipation assembly 4 includes a variable frequency motor 401. A fan blade 402 is fixedly sleeved on the output shaft of the variable frequency motor 401. A drive gear 403 is fixedly installed at the bottom center of the fan blade 402. A transmission belt 404 meshes with the surface of the drive gear 403. Driven gears 405 are meshed inside both ends of the transmission belt 404. A second fan blade 406 is integrally formed at the top of the driven gear 405. A fixing frame 407 is rotatably installed inside the top of the second fan blade 406. The left and right sides of the top of the fixing frame 407 are fixedly installed on the front and rear sides of the inner wall of the bottom heat dissipation frame 2, respectively. The bottom of the variable frequency motor 401 is fixedly installed in the middle of the heat dissipation frame 2.

[0034] Specifically, the fixed bracket 407 limits the rotation height of the second fan blade 406, ensuring stable transmission between the driven gear 405 and the second fan blade 406. Secondly, the internal teeth of the second fan blade 406 effectively ensure meshing with the middle driving gear 403, preventing slippage due to insufficient wrap angle. The variable frequency motor 401 drives the three fan blades to rotate, effectively improving heat dissipation efficiency for the entire area inside the bottom heat dissipation frame 2.

[0035] The sealing assembly 5 includes a servo motor 501, the output shaft of which is fixedly sleeved with a rotating shaft 502. A worm 503 is integrally formed on the surface of the rotating shaft 502, and a worm wheel 505 meshes with the surface of the worm 503. A limiting shaft is integrally formed on one side of the worm wheel 505, and a sealing plate 506 is fixedly installed on the surface of the limiting shaft. The sealing plate 506 is rotatably installed on the bottom side of the heat dissipation frame plate 2. A limiting rod 504 is fixedly installed at one end of the rotating shaft 502, and the limiting rod 504 is rotatably installed inside the limiting groove 204. The rotating shaft 502 is rotatably installed inside the rotating shaft groove 202. The size of the worm 503 is adapted to the size of the worm groove 203. There are six worms 503, which are divided into three groups. Each group of worms 503 is arranged from left to right on the surface of the rotating shaft 502, and the helical direction of each group of worms 503 is set to the opposite direction.

[0036] Specifically, by matching the limiting groove 204 and the limiting rod 504, the rotating shaft 502 can be guaranteed to have the functions of limiting and supporting at both ends during rotation, ensuring that the worm 503 can effectively transmit power with the worm wheel 505. Furthermore, by using the adjacent reverse thread design of the worm 503, the sealing plate 506 can be closed and opened synchronously, achieving the dual functions of smooth heat dissipation and airtight protection. The fixed-angle rotation of the servo motor 501 can help the sealing plate 506 achieve the function of fixing the rotation angle.

[0037] The control component 6 includes a controller 601. The surface of the controller 601 is electrically connected to wire 1 602, wire 2 603, and wire 3 605. One end of wire 1 602 is electrically connected to the servo motor 501. One end of wire 2 603 is fixedly mounted with a fixing ring 604. The fixing ring 604 is fixedly mounted on the outer wall of the frequency converter motor 401. Wire 2 603 is electrically connected to the frequency converter motor 401 through the fixing ring 604. One end of wire 3 605 is electrically connected to a temperature sensor 606. There are two temperature sensors 606, which are fixedly mounted on the left and right sides inside the heat sink plate 2, respectively.

[0038] Specifically, temperature sensor 606 is used for temperature monitoring, and controller 601 is used to adjust the rotation angle and speed of servo motor 501 and variable frequency motor 401 in a timely manner to realize the automation and intelligence of heat dissipation inside the bottom heat dissipation frame plate 2, avoid damage caused by continuous high-frequency rotation of motor, and improve the overall automation level of the device.

[0039] The working principle of this utility model is as follows:

[0040] Temperature sensor 606 identifies the internal temperature of the bottom heat sink plate 2. The identification threshold of temperature sensor 606 can be set according to actual conditions. For example, it can be set to three temperature thresholds: low, medium, and high. These correspond to three rotation angles of servo motor 501, which in turn control three states of sealing plate 506: closed, half-open, and fully open. Simultaneously, controller 601 adjusts the three speeds of variable frequency motor 401—zero speed, normal speed, and high speed—based on the three temperature threshold settings of temperature sensor 606. The specific control process is as follows:

[0041] When the temperature sensor 606 detects that the internal temperature is medium, it transmits a signal to the controller 601. The controller 601 controls the servo motor 501 to rotate at a certain angle via wire 602, which drives the worm gear 503 to rotate and, in conjunction with the worm wheel 505, rotates the sealing plate 506 by 45 degrees, achieving a half-open state. At the same time, the controller 601 controls the variable frequency motor 401 to rotate at medium speed via wire 603. The drive gear 403 simultaneously drives the transmission belt 404 to control the driven gear 405 to drive the fan blade 406 to rotate synchronously at medium speed, dissipating heat from the inside of the bottom heat dissipation frame 2. When the internal temperature is low, i.e., when the linear motor is not working, the sealing plate 506 is in a horizontal state and completes the sealing, and the variable frequency motor 401 stops rotating. When the internal temperature is high, the linear motor is working under high load. At this time, the controller 601 controls the sealing plate 506 to fully open, and the variable frequency motor 401 rotates at high speed to achieve rapid ventilation and heat dissipation.

[0042] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A stator structure of a linear motor comprising a protective heat-dissipating inner partition (1), characterized in that: The bottom of the protective heat-dissipation inner partition (1) is provided with a bottom heat-dissipation frame plate (2), the top end of the bottom heat-dissipation frame plate (2) is detachably provided with an air inlet heat-dissipation mesh plate (3), an installation groove is formed in the bottom heat-dissipation frame plate (2), a sealing assembly (5) is movably installed in the installation groove, a heat-dissipation assembly (4) is arranged in the bottom heat-dissipation frame plate (2), the heat-dissipation assembly (4) and the sealing assembly (5) are electrically connected with a control assembly (6), the installation groove comprises a motor groove (201), a rotating shaft groove (202) is integrally formed on the side of the motor groove (201), a plurality of worm grooves (203) are integrally formed in the middle of the rotating shaft groove (202), a worm wheel groove (205) is integrally formed on the top of the worm groove (203), and a limiting groove (204) is integrally formed on the end of the rotating shaft groove (202) away from the motor groove (201). The heat-dissipation assembly (4) comprises a variable frequency motor (401), a fan blade I (402) is fixedly sleeved on the output shaft of the variable frequency motor (401), a driving gear (403) is fixedly installed at the bottom of the center of the fan blade I (402), a transmission belt (404) is engaged with the surface of the driving gear (403), a driven gear (405) is engaged with the inside of the left and right ends of the transmission belt (404), a fan blade II (406) is integrally formed on the top end of the driven gear (405), a fixing frame (407) is rotatably installed in the inside of the top end of the fan blade II (406), and the top end of the fixing frame (407) is fixedly installed on the inner wall of the front and back sides of the bottom heat-dissipation frame plate (2). The sealing assembly (5) comprises a servo motor (501), a rotating shaft (502) is fixedly sleeved on the output shaft of the servo motor (501), a worm (503) is integrally formed on the surface of the rotating shaft (502), a worm wheel (505) is engaged with the surface of the worm (503), a limiting shaft is integrally formed on one side of the worm wheel (505), a sealing plate (506) is fixedly installed on the surface of the limiting shaft, and the sealing plate (506) is rotatably installed on the bottom side of the heat-dissipation frame plate (2). The control assembly (6) comprises a controller (601), the surface of the controller (601) is electrically connected with a wire I (602), a wire II (603) and a wire III (605), one end of the wire I (602) is electrically connected with the servo motor (501), one end of the wire II (603) is fixedly installed with a fixing ring (604), the fixing ring (604) is fixedly installed on the outer wall of the variable frequency motor (401), the wire II (603) is electrically connected with the variable frequency motor (401) through the fixing ring (604), and one end of the wire III (605) is electrically connected with a temperature sensor (606).

2. A stator structure for a linear motor according to claim 1, characterized in that: The bottom of the variable frequency motor (401) is fixedly installed on the middle end of the heat-dissipation frame plate (2).

3. A stator structure for a linear motor as defined in claim 1, characterized in that: One end of the rotating shaft (502) is fixedly installed with a limiting rod (504), the limiting rod (504) is rotatably installed in the inside of the limiting groove (204), the rotating shaft (502) is rotatably installed in the inside of the rotating shaft groove (202), and the size of the worm (503) is matched with the size of the worm groove (203).

4. A stator structure for a linear motor according to claim 1, characterized in that: The number of the worm (503) is six, the six worms (503) are equally divided into three groups, and each group of the worm (503) is arranged on the surface of the rotating shaft (502) from left to right in sequence.

5. A stator structure for a linear motor as defined in claim 1, characterized in that: The number of the temperature sensor (606) is two, and the two temperature sensors (606) are respectively fixedly installed on the left and right sides in the inside of the heat dissipation frame plate (2).

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