Radiating structure of gradient coil

Abstract

The utility model discloses a heat dissipation structure of a gradient coil, which relates to the technical field of gradient coils and comprises a coil body and a position control supporting shell, one side of the position control supporting shell is fixedly connected with an L-shaped supporting plate, one side of the L-shaped supporting plate is fixedly connected with a one-way direct current motor, and an output rotating shaft of the one-way direct current motor is fixedly connected with a face gear. Teeth on the outer circumferential face of the plane gear are meshed with teeth on the inner circumferential face of a plane gear ring, the outer circumferential face of the plane gear ring makes contact with the inner wall of the position control supporting shell, and the plane gear ring is fixedly connected with a flexible cleaning brush through a linkage sliding block. Through the arrangement of the coil body, the position control supporting shell, the L-shaped supporting plate, the one-way direct current motor, the plane gear, the plane gear ring, the position control groove, the linkage sliding block and the flexible cleaning brush, dust attached to the outer surface of the first heat dissipation barrel can be effectively cleaned, the good heat conductivity of copper is guaranteed, and the heat dissipation effect cannot be affected.

Description

Technical Field

[0001] This utility model relates to the field of gradient coil technology, specifically a heat dissipation structure for a gradient coil. Background Technology

[0002] Gradient coils are an important component of magnetic resonance imaging (MRI) equipment, primarily used to generate gradient magnetic fields to aid in spatial localization and signal readout. Gradient coils generate varying magnetic fields through electric current; these fields interact with the main magnetic field, causing the resonant frequencies of atomic nuclei to change at different locations.

[0003] A search revealed a magnetic coil with a heat dissipation structure in Chinese Patent Publication No. CN218782878U. The coil includes an outer frame with a square groove on the side of its inner wall. This magnetic coil utilizes a copper plate and copper heat sink. The copper plate dissipates heat from the magnetic coil tube inside the outer frame, while the heat from the copper plate is dissipated through the heat dissipation copper pipe and fins. The airflow further facilitates stable heat dissipation from the outside, ensuring a stable heat dissipation from the inside of the device. Compared to traditional devices, this device leverages the thermal conductivity of copper to achieve stable heat dissipation from the inside.

[0004] While the above solutions utilize the thermal conductivity of copper to stably dissipate heat from the device, the aforementioned patents make it difficult to clean the copper surface. Dust adsorbed on the copper surface will affect the heat dissipation effect. Therefore, we provide a gradient coil heat dissipation structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a heat dissipation structure for a gradient coil to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure for a gradient coil, comprising a coil body and a control support shell. An L-shaped support plate is fixedly connected to one side of the control support shell, and a unidirectional DC motor is fixedly connected to one side of the L-shaped support plate. A planar gear is fixedly connected to the output shaft of the unidirectional DC motor. The teeth on the outer circumferential surface of the planar gear mesh with the teeth on the inner circumferential surface of the planar gear ring. The outer circumferential surface of the planar gear ring contacts the inner wall of the control support shell. The planar gear ring is fixedly connected to a flexible cleaning brush via a linkage slider. The tight fit between the components can effectively clean the dust adhering to the copper surface.

[0007] Preferably, there are two linkage sliders, which are slidably connected in the control grooves opened in the control support shell. The setting of the control grooves can ensure the smooth movement of the linkage sliders.

[0008] Preferably, a heat dissipation copper plate is fixedly connected to the other side of the control support shell, and a U-shaped clamp is fixedly connected to the inner wall of the heat dissipation copper plate. The U-shaped clamp can effectively support the coil body.

[0009] Preferably, a coil body is provided between the U-shaped clamp and the heat dissipation copper plate. There are a total of six U-shaped clamps. The arrangement of six U-shaped clamps enhances the stability of the U-shaped clamps.

[0010] Preferably, a heat dissipation copper pipe is fixedly connected to the outer circumferential surface of the heat dissipation copper plate.

[0011] Preferably, a heat dissipation cylinder one and a heat dissipation cylinder two are sequentially fixedly sleeved on the outer circumference of the heat dissipation copper pipe. The setting of heat dissipation cylinder one accelerates the outward diffusion of heat.

[0012] Preferably, the first and second heat sinks are made of copper, which effectively dissipates heat due to its high thermal conductivity.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application, through the configuration of coil body, control support shell, L-shaped support plate, unidirectional DC motor, planar gear, planar gear ring, control groove, linkage slider, and flexible cleaning brush, can effectively clean the dust attached to the outer surface of the heat sink, ensuring good thermal conductivity of copper and not affecting the heat dissipation effect.

[0015] 2. This application, through the arrangement of U-shaped clamp, heat dissipation copper plate, heat dissipation cylinder one, heat dissipation copper pipe, and heat dissipation cylinder two, can effectively dissipate heat from the coil body, enabling the coil body to work stably and improving the working efficiency of the coil body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the control support shell of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the internal structure of the control support shell of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the heat dissipation copper plate of this utility model.

[0020] The following are the labels in the diagram: 1. Coil body; 2. Control support shell; 3. L-shaped support plate; 4. Unidirectional DC motor; 5. Planar gear; 6. Planar gear ring; 7. Control groove; 8. Linkage slider; 9. Flexible cleaning brush; 10. U-shaped clamp; 11. Heat dissipation copper plate; 12. Heat dissipation cylinder one; 13. Heat dissipation copper pipe; 14. Heat dissipation cylinder two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 and Figure 4 As shown, this utility model provides a technical solution for a heat dissipation structure of a gradient coil, including a coil body 1 and a control support shell 2. A heat dissipation copper plate 11 is fixedly connected to the other side of the control support shell 2. The control support shell 2 and the heat dissipation copper plate 11 maintain a linkage effect. A heat dissipation copper pipe 13 is fixedly connected to the outer circumferential surface of the heat dissipation copper plate 11. The heat dissipation copper plate 11 supports the heat dissipation copper pipe 13, ensuring the stability of the heat dissipation copper pipe 13.

[0023] like Figure 1 and Figure 2 As shown, heat dissipation tube 13 is fixedly sleeved with heat dissipation cylinder 12 and heat dissipation cylinder 2 14 on its outer circumference. The heat dissipation cylinder 12 and heat dissipation cylinder 2 14 are made of copper. The tight fit between heat dissipation tube 13, heat dissipation cylinder 12 and heat dissipation cylinder 2 14 can effectively conduct heat and make the heat dissipation more rapid by increasing the contact area with air.

[0024] like Figure 1 and Figure 4 As shown, a U-shaped clamp 10 is fixedly connected to the inner wall of the heat dissipation copper plate 11. The heat dissipation copper plate 11 displays the U-shaped clamp 10 to ensure the stability of the U-shaped clamp 10. A coil body 1 is arranged between the U-shaped clamp 10 and the heat dissipation copper plate 11. There are six U-shaped clamps 10 in total. The purpose of setting six U-shaped clamps 10 is to effectively control the position of the coil body 1 by cooperating with the heat dissipation copper plate 11, so that the coil body 1 will not fall off. The coil body 1 is existing technology.

[0025] like Figure 2 and Figure 3As shown, an L-shaped support plate 3 is fixedly connected to one side of the control support housing 2. The L-shaped support plate 3 can effectively support the unidirectional DC motor 4, ensuring that the unidirectional DC motor 4 can work stably. The unidirectional DC motor 4 is fixedly connected to one side of the L-shaped support plate 3. The output shaft of the unidirectional DC motor 4 is fixedly connected to a planar gear 5. The unidirectional DC motor 4 can effectively provide sufficient power support for the rotation of the planar gear 5, ensuring that the planar gear 5 can rotate in place. At the same time, there will be no slippage during the rotation, and the movement is smoother. The unidirectional DC motor 4 is existing technology.

[0026] like Figure 1 and Figure 3 As shown, the teeth on the outer circumferential surface of the planar gear 5 mesh with the teeth on the inner circumferential surface of the planar gear ring 6. The outer circumferential surface of the planar gear ring 6 contacts the inner wall of the control support housing 2. The control support housing 2 can effectively control the position of the planar gear ring 6, ensuring the stability of the planar gear ring 6 and preventing any deviation. The tight fit between the planar gear 5 and the planar gear ring 6 can effectively drive the planar gear ring 6 to rotate within the control support housing 2 when the planar gear 5 rotates, smoothly driving the subsequent components to move synchronously.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the planar toothed ring 6 is fixedly connected to the flexible cleaning brush 9 via the linkage slider 8. The linkage slider 8 ensures that the planar toothed ring 6 and the flexible cleaning brush 9 maintain a linkage effect. The bottom of the flexible cleaning brush 9 is equipped with soft bristles, which contact the surface of the heat sink 12. By moving the soft bristles through the flexible cleaning brush 9, the dust attached to the surface of the heat sink 12 can be effectively cleaned.

[0028] like Figure 1 and Figure 3 As shown, there are two linkage sliders 8. The two linkage sliders 8 are slidably connected in the control grooves 7 opened in the control support shell 2. The setting of the control grooves 7 allows the control support shell 2 to effectively apply a control effect to the two linkage sliders 8, ensuring that the two linkage sliders 8 move more smoothly and will not fall off.

[0029] Working principle: When using this structure, the coil body 1 starts working and generates heat when combined with external energy equipment. At this time, the heat generated by the coil body 1 is evenly transferred to the heat dissipation copper plate 11 for initial heat dissipation. Then, the heat is transferred to the heat dissipation cylinder 12 and heat dissipation cylinder 2 14 by the heat dissipation copper pipe 13 for heat dissipation. This can effectively conduct heat outward and achieve rapid heat dissipation. To ensure the heat dissipation effect of the outermost copper heat dissipation cylinder 12, the unidirectional DC motor 4 is started to work, driving the planar gear 5 to rotate in place. Because the planar gear ring 6 is restricted by the control support shell 2, the planar gear 5 drives the planar gear ring 6 to rotate stably within the control support shell 2. Also, because of the semi-arc of the control groove 7, the linkage slider 8 drives the flexible cleaning brush 9 to make a semi-circular motion. Since there are two flexible cleaning brushes 9, the soft bristles of the two flexible cleaning brushes 9 rub against the outer surface of the heat dissipation cylinder 12, thereby cleaning the dust attached to the surface of the heat dissipation cylinder 12 and ensuring the heat dissipation efficiency of the heat dissipation cylinder 12.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat dissipation structure for a gradient coil, comprising a coil body (1) and a control support shell (2), characterized in that: An L-shaped support plate (3) is fixedly connected to one side of the control support housing (2), and a unidirectional DC motor (4) is fixedly connected to one side of the L-shaped support plate (3). A planar gear (5) is fixedly connected to the output shaft of the unidirectional DC motor (4). The teeth on the outer circumferential surface of the planar gear (5) mesh with the teeth on the inner circumferential surface of the planar gear ring (6). The outer circumferential surface of the planar gear ring (6) contacts the inner wall of the control support housing (2). The planar gear ring (6) is fixedly connected to the flexible cleaning brush (9) through the linkage slider (8).

2. The heat dissipation structure of a gradient coil according to claim 1, characterized in that: There are two linkage sliders (8), and the two linkage sliders (8) are slidably connected in the control groove (7) opened in the control support shell (2).

3. The heat dissipation structure of a gradient coil according to claim 1, characterized in that: A heat dissipation copper plate (11) is fixedly connected to the other side of the control support shell (2), and a U-shaped clamp (10) is fixedly connected to the inner wall of the heat dissipation copper plate (11).

4. The heat dissipation structure of a gradient coil according to claim 3, characterized in that: A coil body (1) is provided between the U-shaped clamp (10) and the heat dissipation copper plate (11), and there are a total of six U-shaped clamps (10).

5. The heat dissipation structure of a gradient coil according to claim 3, characterized in that: The outer circumference of the heat dissipation copper plate (11) is fixedly connected to the heat dissipation copper pipe (13).

6. The heat dissipation structure of a gradient coil according to claim 5, characterized in that: The outer circumference of the heat dissipation copper pipe (13) is fixedly sleeved with heat dissipation cylinder one (12) and heat dissipation cylinder two (14).

7. The heat dissipation structure of a gradient coil according to claim 6, characterized in that: The heat sink one (12) and heat sink two (14) are made of copper.

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