Discharge resistor structure with cooling bracket

By designing a discharge resistor structure with a cooling bracket and using an open protective space and support shell made of aluminum alloy, the problem of insufficient heat dissipation in traditional discharge resistors is solved, achieving efficient heat dissipation and enhancing the stability and safety of MRI equipment.

CN223941607UActive Publication Date: 2026-02-24DEYIHUA (HUIZHOU) PRECISION IND CO LTD
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Patent Information

Application Number
CN202520310891.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-24
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Traditional discharge resistors lack auxiliary heat dissipation structures, making them prone to damage during the release of large amounts of heat, which affects the safety and stability of the MRI magnet system. Furthermore, existing auxiliary heat dissipation structures are complex and occupy a large area.

Method used

A discharge resistor structure with a cooling bracket is designed. The cooling bracket body is made of aluminum alloy. Through the open protective space design and the discharge resistor support shell made of aluminum alloy, rapid heat dissipation is achieved, enhancing stability and safety.

Benefits of technology

It effectively dissipates the heat generated during the discharge process, maintains stable system operation, improves stability and reliability under high load conditions, simplifies structural design, reduces footprint, and extends service life.

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Abstract

A discharge resistor structure with a cooling support comprises a cooling support body and a discharge resistor supporting shell installed on the cooling support body, and the cooling support body comprises a first cooling support, a second cooling support, a first connecting cross beam, a second connecting cross beam and a connecting base. The first cooling support and the second cooling support are arranged side by side in a spaced mode in the Y-axis direction, the first connecting cross beam and the second connecting cross beam are arranged side by side in a spaced mode in the X-axis direction, and the connecting base is located between the first connecting cross beam and the second connecting cross beam. The first cooling support, the second cooling support, the first connecting cross beam and the second connecting cross beam define an open type protection space, and the discharge resistor is located in the open type protection space. According to the utility model, the cooling bracket main body is arranged to provide a heat dissipation function so as to ensure that heat generated in a discharge process can be effectively dissipated, the stability and reliability of the cooling bracket under a high-load working condition are enhanced, and the convenience of safety protection and maintenance is improved.
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Description

Technical Field

[0001] This utility model relates to the field of discharge technology, and in particular to a discharge resistor structure with a cooling bracket. Background Technology

[0002] Magnetic resonance imaging (MRI) is an important imaging instrument widely used in the medical field. Its core function is to use superconducting magnets to generate stable, strong magnetic fields, thereby capturing images of the internal structures of the human body. In MRI equipment, the magnet system is made of superconducting materials that maintain extremely low resistivity and temperature during normal operation, ensuring the long-term stability of the magnet. The discharge resistor is a crucial component of the magnet system in MRI equipment. Its main function is to transfer the stored energy to an external conductive circuit via heating when the superconducting magnet needs to be rapidly released in emergency situations (such as power failure or security checks), thus preventing the magnet from being damaged by overheating.

[0003] Traditional discharge resistors lack auxiliary heat dissipation structures, making them prone to damage during the release of large amounts of heat, which poses a potential risk to the safety and stability of the MRI magnet system. Meanwhile, the auxiliary heat dissipation structures of discharge resistors currently on the market are quite complex, such as complex heat dissipation channel designs, and occupy a large area.

[0004] Therefore, how to provide a discharge resistor structure with a cooling bracket is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a discharge resistor structure with a cooling bracket, which aims to solve the above-mentioned technical problems. This invention provides heat dissipation by setting a cooling bracket body to ensure that the heat generated during the discharge process can be effectively dissipated, thereby enhancing its stability and reliability under high-load working conditions and improving the convenience of safety protection and maintenance.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A discharge resistor structure with a cooling bracket includes a cooling bracket body and a discharge resistor support shell mounted on the cooling bracket body. The cooling bracket body includes a first cooling bracket, a second cooling bracket, a first connecting beam, a second connecting beam, and a connecting seat. The first and second cooling brackets are arranged side-by-side with a gap along the Y-axis, and the first and second connecting beams are arranged side-by-side with a gap along the X-axis. One end of the first connecting beam is connected to the first cooling bracket, and the other end of the first connecting beam is connected to the second cooling bracket. One end of the second connecting beam is connected to the first cooling bracket, and the other end of the second connecting beam is connected to the second cooling bracket. The connecting seat is located between the first and second connecting beams, and one end of the connecting seat passes through the discharge resistor support shell and connects to the first cooling bracket, while the other end of the connecting seat passes through the discharge resistor support shell and connects to the second cooling bracket. The first cooling bracket, the second cooling bracket, the first connecting beam, and the second connecting beam enclose an open protective space, and the discharge resistor is located within the open protective space.

[0008] Furthermore, the main body of the cooling bracket also includes a first support plate, a second support plate, a third support plate, and a fourth support plate. The first support plate and the second support plate are both connected to the first cooling bracket, and the third support plate and the fourth support plate are both connected to the second cooling bracket.

[0009] Furthermore, the first cooling bracket includes a first transverse plate, a first side plate, and a second side plate. One end of the first transverse plate is connected to the first side plate, and the other end of the first transverse plate is connected to the second side plate. Recesses are provided at the connection points between the first transverse plate and the first side plate, and at the connection points between the first transverse plate and the second side plate.

[0010] Furthermore, the first transverse plate is provided with a plurality of assembly holes, and a connecting side is provided at the outer edge of the first transverse plate. The connecting side is provided with a plurality of connecting holes, and one end of the connecting seat passes through the discharge resistor support shell and the connecting holes to connect with the first cooling bracket.

[0011] Furthermore, the first side plate includes a first side stop, a first inclined part, and a first bottom support part arranged sequentially from top to bottom. One end of the first connecting beam is connected to the inner side of the first side stop. The first support plate is located on one side of the first connecting beam. One end of the first support plate is connected to the first side stop, and the other end of the first support plate is connected to the first bottom support part.

[0012] Furthermore, the first support plate includes an upper support portion, a middle support portion, and a lower support portion arranged sequentially from top to bottom. The upper support portion is connected to the first side stop portion, and the lower support portion is connected to the first bottom support portion.

[0013] Furthermore, the connector is L-shaped and includes a first snap-fit ​​connection part, a lateral part and a second snap-fit ​​connection part arranged sequentially along the Y-axis. The first snap-fit ​​connection part passes through the connection hole and is connected to the first cooling bracket, the second snap-fit ​​connection part is connected to the second cooling bracket, and the lateral part is connected to the discharge resistor support shell through an assembly.

[0014] Furthermore, the first bottom support portion has a first through hole, and the lower support portion has a second through hole, with the first through hole and the second through hole communicating with each other.

[0015] The discharge resistor structure with cooling support of this utility model has the following beneficial effects:

[0016] 1. The discharge resistor structure with cooling bracket of this utility model provides heat dissipation function by setting the cooling bracket body to ensure that the heat generated during the discharge process can be effectively dissipated, maintain the stable operation of the system, prevent overheating damage, meet its heat dissipation requirements, enhance its stability and reliability under high load working conditions, and improve the convenience of safety protection and maintenance.

[0017] 2. The discharge resistor structure with cooling bracket of this utility model has an open protective space formed by the first cooling bracket, the second cooling bracket, the first connecting beam and the second connecting beam. The discharge resistor is located in the open protective space. Through the structural cooperation between the first cooling bracket, the second cooling bracket, the first connecting beam and the second connecting beam, the discharge resistor can be effectively supported and fixed. Compared with the traditional closed space design, the open protective space design of this utility model can quickly dissipate heat, has a compact overall structure, reasonable space design, occupies less area, and has better performance.

[0018] 3. The discharge resistor structure with cooling bracket of this utility model can be made of aluminum alloy, where both the main body of the cooling bracket and the support shell of the discharge resistor are made of aluminum alloy. Aluminum alloy has excellent heat dissipation performance, corrosion resistance and mechanical strength, and is suitable for various harsh working environments. The aluminum alloy shell can effectively conduct the heat generated by the resistor during operation to the external environment, thereby reducing the operating temperature of the resistor and extending its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the discharge resistor structure with cooling bracket of this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the discharge resistor structure with cooling bracket of this utility model. Figure 2 ;

[0021] Figure 3This is a schematic diagram of the overall structure of the discharge resistor structure with cooling bracket of this utility model. Figure 3 ;

[0022] Figure 4 for Figure 3 An enlarged structural diagram of location A;

[0023] The labels shown in the diagram are:

[0024] 1. Discharge resistor support shell; 2. First cooling bracket; 3. Second cooling bracket; 4. First connecting beam; 5. Second connecting beam; 6. Connecting seat; 7. First support plate; 8. Second support plate; 9. Third support plate; 10. Fourth support plate; 11. First transverse plate; 12. First side plate; 13. Second side plate; 14. Recess; 15. Assembly hole; 16. Connecting side; 17. Connecting hole; 18. First side stop; 19. First inclined part; 20. First bottom support part; 21. Upper support part; 22. Support middle part; 23. Lower support part; 24. First snap-fit ​​connection part; 25. Transverse part; 26. Second snap-fit ​​connection part; 27. First through hole. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the product of this utility model will be further described in detail below with reference to the embodiments and accompanying drawings.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figure 1As shown, a discharge resistor structure with a cooling bracket includes a cooling bracket body and a discharge resistor support shell 1 mounted on the cooling bracket body. The cooling bracket body includes a first cooling bracket 2, a second cooling bracket 3, a first connecting beam 4, a second connecting beam 5, and a connecting seat 6. The first cooling bracket 2 and the second cooling bracket 3 are arranged side-by-side with a gap along the Y-axis, and the first connecting beam 4 and the second connecting beam 5 are arranged side-by-side with a gap along the X-axis. One end of the first connecting beam 4 is connected to the first cooling bracket 2 via an assembly, and the other end of the first connecting beam 4 is connected to the second cooling bracket 3 via a connecting seat. The assembly connection is as follows: one end of the second connecting beam 5 is connected to the first cooling bracket 2 via an assembly, and the other end of the second connecting beam 5 is connected to the second cooling bracket 3 via an assembly. The connecting seat 6 is located between the first connecting beam 4 and the second connecting beam 5, and one end of the connecting seat 6 passes through the discharge resistor support shell 1 and connects to the first cooling bracket 2, while the other end of the connecting seat 6 passes through the discharge resistor support shell 1 and connects to the second cooling bracket 3. The first cooling bracket 2, the second cooling bracket 3, the first connecting beam 4, and the second connecting beam 5 enclose an open protective space, within which the discharge resistor is located. Through the structural cooperation between the first cooling bracket 2, the second cooling bracket 3, the first connecting beam 4, and the second connecting beam 5, the discharge resistor can be effectively supported and fixed. Compared with the traditional closed space design, the open protective space design of this utility model can quickly dissipate heat, has a compact overall structure, a reasonable space design, occupies less area, and has better performance.

[0029] It should be noted that this utility model provides heat dissipation by setting a cooling bracket body to ensure that the heat generated during the discharge process can be effectively dissipated, maintain the stable operation of the system, prevent overheating damage, meet its heat dissipation requirements, enhance its stability and reliability under high load working conditions, and improve the convenience of safety protection and maintenance.

[0030] It should be further explained that the discharge resistor support shell 1 is used to install the discharge resistor. The function of the discharge resistor is to quickly release the energy in the magnet into the resistor when needed, to prevent the magnet from overheating or being damaged. When the MRI equipment malfunctions or needs to be stopped urgently, the discharge resistor can quickly and safely release the energy in the magnet, avoiding damage to the equipment and personnel. By setting up a cooling bracket body, the discharge resistor can convert energy into heat and dissipate it, preventing the internal temperature of the magnet from becoming too high, thereby protecting the magnet and other components.

[0031] like Figure 1 and Figure 2As shown, the main body of the cooling bracket also includes a first support plate 7, a second support plate 8, a third support plate 9, and a fourth support plate 10. The first support plate 7 and the second support plate 8 are both connected to the first cooling bracket 2, and the third support plate 9 and the fourth support plate 10 are both connected to the second cooling bracket 3.

[0032] like Figure 1 As shown, the first cooling bracket 2 includes a first transverse plate 11, a first side plate 12, and a second side plate 13. One end of the first transverse plate 11 is connected to the first side plate 12, and the other end of the first transverse plate 11 is connected to the second side plate 13. Recesses 14 are provided at the connections between the first transverse plate 11 and the first side plate 12, and at the connections between the first transverse plate 11 and the second side plate 13. The first transverse plate 11, the first side plate 12, and the second side plate 13 are integrally formed. The recesses 14 facilitate positioning and fixing by other devices.

[0033] like Figure 1 and Figure 4 As shown, the first transverse plate 11 has a plurality of mounting holes 15, and a connecting side 16 is provided at the outer edge of the first transverse plate 11. The connecting side 16 has a plurality of connecting holes 17. One end of the connecting seat 6 passes through the discharge resistor support shell 1 and the connecting holes 17 and is connected to the first cooling bracket 2. The first transverse plate 11, the first side plate 12, the second side plate 13 and the connecting side 16 are integrally formed.

[0034] like Figure 1 and Figure 4 As shown, the first side plate 12 includes a first side stop 18, a first inclined portion 19, and a first bottom support portion 20 arranged sequentially from top to bottom. One end of the first connecting beam 4 is connected to the inner side of the first side stop 18 via an assembly. The first support plate 7 is located on one side of the first connecting beam 4, with one end connected to the first side stop 18 and the other end connected to the first bottom support portion 20. The widths of the first side stop 18, the first inclined portion 19, and the first bottom support portion 20 decrease sequentially from top to bottom.

[0035] like Figures 1 to 4 As shown, the structure of the second cooling bracket 3 is the same as that of the first cooling bracket 2, so it will not be described in detail here.

[0036] As shown in Figure 4, the first support plate 7 includes an upper support portion 21, a middle support portion 22, and a lower support portion 23 arranged sequentially from top to bottom. The upper support portion 21 is connected to the first side stop portion 18 via an assembly, and the lower support portion 23 is connected to the first bottom support portion 20. The middle support portion 22 is inclined. The assembly in this embodiment can be a common component such as a screw or bolt.

[0037] like Figures 1 to 4 As shown, the structures of the second support plate 8, the third support plate 9, and the fourth support plate 10 are all the same as those of the first support plate 7, so they will not be described in detail here.

[0038] like Figure 2 and Figure 3 As shown, the connecting seat 6 is L-shaped and includes a first fastening connecting part 24, a transverse part 25 and a second fastening connecting part 26 arranged sequentially along the Y-axis. The first fastening connecting part 24 passes through the connecting hole 17 and is detachably fastened to the first cooling bracket 2. The second fastening connecting part 26 is detachably fastened to the second cooling bracket 3. The transverse part 25 is connected to the discharge resistor support shell 1 through an assembly.

[0039] like Figure 1 and Figure 4 As shown, the first bottom support portion 20 has a first through hole 27, and the lower support portion 23 has a second through hole, with the first through hole 27 communicating with the second through hole. The first through hole 27 and the second through hole facilitate the fixed installation of the first support plate 7 and the first cooling bracket 2 with other devices.

[0040] like Figure 1 and Figure 2 As shown, both the cooling bracket body and the discharge resistor support shell 1 can be made of aluminum alloy. Aluminum alloy has excellent heat dissipation performance, corrosion resistance, and mechanical strength, making it suitable for various harsh working environments. The aluminum alloy shell can effectively conduct the heat generated by the resistor during operation to the external environment, thereby reducing the operating temperature of the resistor and extending its service life.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A discharge resistor structure with a cooling bracket, characterized in that: The device includes a cooling bracket body and a discharge resistor support shell (1) mounted on the cooling bracket body. The cooling bracket body includes a first cooling bracket (2), a second cooling bracket (3), a first connecting beam (4), a second connecting beam (5), and a connecting seat (6). The first cooling bracket (2) and the second cooling bracket (3) are arranged side by side with spacing along the Y-axis. The first connecting beam (4) and the second connecting beam (5) are arranged side by side with spacing along the X-axis. One end of the first connecting beam (4) is connected to the first cooling bracket (2), and the other end of the first connecting beam (4) is connected to the second cooling bracket (3). One end of the crossbeam (5) is connected to the first cooling bracket (2), and the other end of the second connecting crossbeam (5) is connected to the second cooling bracket (3). The connecting seat (6) is located between the first connecting crossbeam (4) and the second connecting crossbeam (5). One end of the connecting seat (6) passes through the discharge resistor support shell (1) and is connected to the first cooling bracket (2). The other end of the connecting seat (6) passes through the discharge resistor support shell (1) and is connected to the second cooling bracket (3). The first cooling bracket (2), the second cooling bracket (3), the first connecting crossbeam (4), and the second connecting crossbeam (5) enclose an open protective space. The discharge resistor is located within the open protective space.

2. The discharge resistor structure with cooling bracket according to claim 1, characterized in that: The main body of the cooling bracket also includes a first support plate (7), a second support plate (8), a third support plate (9) and a fourth support plate (10). The first support plate (7) and the second support plate (8) are both connected to the first cooling bracket (2), and the third support plate (9) and the fourth support plate (10) are both connected to the second cooling bracket (3).

3. The discharge resistor structure with cooling bracket according to claim 2, characterized in that: The first cooling bracket (2) includes a first transverse plate (11), a first side plate (12), and a second side plate (13). One end of the first transverse plate (11) is connected to the first side plate (12), and the other end of the first transverse plate (11) is connected to the second side plate (13). Recesses (14) are provided at the connection between the first transverse plate (11) and the first side plate (12) and at the connection between the first transverse plate (11) and the second side plate (13).

4. The discharge resistor structure with cooling bracket according to claim 3, characterized in that: The first transverse plate (11) is provided with a plurality of assembly holes (15), and the outer edge of the first transverse plate (11) is provided with a connecting side (16), and the connecting side (16) is provided with a plurality of connecting holes (17). One end of the connecting seat (6) passes through the discharge resistor support shell (1) and the connecting hole (17) and is connected to the first cooling bracket (2).

5. The discharge resistor structure with cooling bracket according to claim 4, characterized in that: The first side plate (12) includes a first side stop (18), a first inclined part (19) and a first bottom support part (20) arranged sequentially from top to bottom. One end of the first connecting beam (4) is connected to the inner side of the first side stop (18). The first support plate (7) is located on one side of the first connecting beam (4). One end of the first support plate (7) is connected to the first side stop (18), and the other end of the first support plate (7) is connected to the first bottom support part (20).

6. The discharge resistor structure with cooling bracket according to claim 5, characterized in that: The first support plate (7) includes an upper support part (21), a support middle part (22) and a lower support part (23) arranged sequentially from top to bottom. The upper support part (21) is connected to the first side stop part (18) and the lower support part (23) is connected to the first bottom support part (20).

7. The discharge resistor structure with cooling bracket according to claim 6, characterized in that: The connecting seat (6) is L-shaped and includes a first fastening connecting part (24), a transverse part (25) and a second fastening connecting part (26) arranged sequentially along the Y-axis. The first fastening connecting part (24) passes through the connecting hole (17) and is connected to the first cooling bracket (2). The second fastening connecting part (26) is connected to the second cooling bracket (3). The transverse part (25) is connected to the discharge resistor support shell (1) through an assembly.

8. The discharge resistor structure with cooling bracket according to claim 7, characterized in that: The first bottom support part (20) has a first through hole (27), and the lower support part (23) has a second through hole. The first through hole (27) and the second through hole are connected.