Coil assembly and scanning device

Abstract

The utility model relates to the technical field of nuclear magnetic resonance imaging, in particular to a coil assembly and a scanning device. The coil assembly comprises a substrate, a coil and a connecting line, the substrate comprises a first plate body and a second plate body, and the first plate body and the second plate body are spliced; the coil comprises a first coil body, a second coil body and a connecting wire, the first coil body is wound on the first plate body, and the second coil body is wound on the second plate body; the connecting line is used for connecting the first coil body and the second coil body. The substrate comprises the first plate body and the second plate body which are spliced, and the coil comprises the first coil body and the second coil body which are connected through the connecting wire, so that the substrate and the coil are not integrally manufactured like the prior art, and a machine participating in manufacturing the substrate and the coil only needs to manufacture one part of the substrate and one part of the coil; and miniaturization of a machine participating in manufacturing of the substrate and the coil is facilitated, so that production and processing of the coil assembly are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of nuclear magnetic resonance imaging, especially a coil assembly and scanning device. BACKGROUND

[0002] In a nuclear magnetic resonance imaging device, in order to generate image data, MR signals from a living body need to be detected. The nuclear magnetic resonance imaging device detects radio frequency signals using a coil assembly provided in the nuclear magnetic resonance imaging device.

[0003] The coil assembly in the prior art is large in size, so it is inconvenient to produce and process. In addition, to produce a large-size coil assembly, large-size production equipment needs to be used, which also leads to a relatively high production cost of the coil assembly. SUMMARY

[0004] The utility model discloses a coil assembly, to solve the size of coil assembly in prior art is big, so it is inconvenient to produce and process, in addition, to produce the large-size coil assembly, need to use large-size production equipment, this also leads to the problem of relatively high production cost of coil assembly.

[0005] The utility model discloses a coil assembly, including substrate, coil and connecting wire, substrate includes first board body and second board body, first board body with second board body splicing, coil includes first coil body and second coil body and connecting wire, first coil body is coiled on first board body, second coil body is coiled on second board body, connecting wire is used for connecting first coil body with second coil body.

[0006] Optionally, the coil assembly further includes a connecting block, the connecting block is arranged in the thickness direction of the substrate and located at the splicing position of the first board body and the second board body, and an adhesive layer is arranged between the substrate and the connecting block.

[0007] Optionally, the first board body and the second board body are both arc-shaped, the first coil body is arranged on the arch back of the first board body, the second coil body is arranged on the arch back of the second board body, the first board body is provided with a first avoiding hole, the second board body is provided with a second avoiding hole, the connecting wire is arranged on the side of the substrate away from the coil, and the two ends of the connecting wire respectively pass through the first avoiding hole and the second avoiding hole to respectively connect the first coil body and the second coil body.

[0008] Optionally, the substrate is provided with a first mounting hole, and the mounting hole is used for mounting the coil assembly on the scanning device.

[0009] Optionally, the substrate further comprises a mounting block, the mounting block is provided with a second mounting hole corresponding to the first mounting hole, and the mounting block is used for matching the first mounting hole to enhance mounting stability of the coil assembly.

[0010] Optionally, the coil assembly further comprises a connecting terminal, two sockets are arranged at two ends of the connecting terminal respectively, the coil is inserted into one of the sockets, and the connecting wire is inserted into the other socket.

[0011] Optionally, the substrate and / or the connecting block and / or the mounting block are made of epoxy glue.

[0012] Optionally, a plurality of through holes are arranged on the substrate.

[0013] Optionally, the thickness of the substrate ranges from 0.5 mm to 1.0 mm.

[0014] The utility model discloses still a kind of scanning device, including the coil assembly shown above.

[0015] Compared with prior art, the coil assembly provided by the utility model embodiment has the beneficial effects that: the coil assembly provided by the utility model embodiment includes a substrate, a coil and a connecting wire, the substrate includes a first plate body and a second plate body, and the coil includes a first coil body and a second coil body. Since the substrate includes the spliced first plate body and second plate body, and the coil includes the first coil body and second coil body connected by the connecting wire, the substrate and coil are not integrally manufactured as in the prior art. Therefore, the machine involved in manufacturing the substrate and coil only needs to manufacture one part of the substrate and coil, which is beneficial to miniaturization of the machine involved in manufacturing the substrate and coil, and thus facilitates production and processing of the coil assembly. BRIEF DESCRIPTION OF DRAWINGS

[0016] The technical solutions of the utility model will be described in further detail below with reference to the drawings and embodiments, and in the drawings:

[0017] Figure 1 is one of the schematic diagrams of the coil assembly provided by the utility model embodiment;

[0018] Figure 2 is an exploded view of the coil assembly provided by the utility model embodiment;

[0019] Figure 3 is one of the schematic diagrams of the coil assembly provided by the utility model embodiment;

[0020] Figure 4 is a schematic diagram of the mounting plate of the utility model embodiment;

[0021] Figure 5 is a structural schematic diagram of the connecting terminal of the utility model embodiment.

[0022] The reference signs in the drawings are as follows:

[0023] 10, coil assembly; 1, base plate; 11, first plate body; 111, first avoiding hole; 12, second plate body; 121, second avoiding hole; 13, first mounting hole; 14, through hole; 2, coil; 21, first coil body; 22, second coil body; 3, connecting wire; 4, connecting block; 5, mounting block; 51, second mounting hole; 6, connecting terminal. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Now, the preferred embodiments of the present application will be described in detail with reference to the drawings.

[0025] The embodiment of the present application provides a coil assembly 10, which is shown as follows: Figures 1-4 As shown, the coil assembly 10 comprises a base plate 1, a coil 2 and a connecting wire 3, the base plate 1 comprises a first plate body 11 and a second plate body 12, the first plate body 11 is spliced with the second plate body 12; the coil 2 comprises a first coil body 21 and a second coil body 22 and the connecting wire 3, the first coil body 21 is coiled on the first plate body 11, the second coil body 22 is coiled on the second plate body 12; the connecting wire 3 is used for connecting the first coil body 21 and the second coil body 22.

[0026] The coil assembly 10 provided by the embodiment of the present application is because the base plate 1 comprises the spliced first plate body 11 and the second plate body 12, and the coil 2 comprises the first coil body 21 and the second coil body 22 connected through the connecting wire 3, so the base plate 1 and the coil 2 are not integrally manufactured as in the prior art, so the machine participating in the manufacturing of the base plate 1 and the coil 2 only needs to manufacture one part of the base plate 1 and the coil 2, which is beneficial to the miniaturization of the machine participating in the manufacturing of the base plate 1 and the coil 2, and further facilitates the production and processing of the coil assembly 10.

[0027] The two first coil bodies 21 and the second coil body 22 are connected together through the connecting wire 3, which can ensure good transmission of electrical signals between the first coil body 21 and the second coil body 22.

[0028] It should be noted that when the base plate 1 only comprises two plate bodies of the first plate body 11 and the second plate body 12, the connecting wire 3 is only one, which is used for connecting the first coil body 21 and the second coil body 22 respectively. When the base plate 1 further comprises a plurality of plate bodies, the connecting wire 3 will also be selected to connect between a plurality of coil bodies, and a plurality of connecting wires 3 need to be used to connect a plurality of coil bodies.

[0029] Reference Figure 1The coil assembly 10 further comprises a connecting block 4 arranged in the thickness direction of the base plate 1 and at the joint of the first plate body 11 and the second plate body 12, and an adhesive layer is arranged between the base plate 1 and the connecting block 4.

[0030] The connecting block 4 is arranged at the joint of the first plate body 11 and the second plate body 12 to connect the first plate body 11 and the second plate body 12.

[0031] Specifically, AB glue is applied on the connecting block 4 and adhered to the joint of the first plate body 11 and the second plate body 12. The AB glue has a fast curing speed, and can be positioned in 5-10 minutes at room temperature, greatly shortening the working period. The AB glue has excellent chemical corrosion resistance, can maintain stable performance in various corrosive environments, and has excellent insulation performance.

[0032] Referring to Figure 1 and Figure 3 , the first plate body 11 and the second plate body 12 are both arched, the first coil body 21 is arranged on the arch back of the first plate body 11, the second coil body 22 is arranged on the arch back of the second plate body 12, the first plate body 11 is provided with a first avoiding hole 111, the second plate body 12 is provided with a second avoiding hole 121, the connecting wire 3 is arranged on the side of the base plate 1 away from the coil 2, and the two ends of the connecting wire 3 pass through the first avoiding hole 111 and the second avoiding hole 121, respectively, to connect the first coil body 21 and the second coil body 22, respectively.

[0033] The connecting wire 3 passes through the first avoiding hole 111 and the second avoiding hole 121 to connect the first coil body 21 and the second coil body 22. On the one hand, it is convenient for the connection of the first coil body 21 and the second coil body 22 with the connecting wire 3, and on the other hand, the connecting wire 3 can be arranged on the side of the base plate 1 away from the coil 2, and the connecting wire 3 can be arranged on the concave side of the base plate 1, which can avoid affecting the imaging of the coil assembly 10.

[0034] Specifically, the first avoiding hole 111 is arranged corresponding to one end of the first coil body 21, and the second avoiding hole 121 is arranged corresponding to one end of the second coil body 22, so as to facilitate the connection of one end of the first coil body 21 and one end of the second coil body 22 by the connecting wire 3. This helps to optimize the electrical connection, and the position and design of the connecting wire 3 can affect the current flow path and the stability of signal transmission.

[0035] Referring to Figure 4 , the base plate 1 is provided with a first mounting hole 13 for mounting the coil assembly 10 on a scanning device.

[0036] Since the coil assembly 10 needs to be fixedly installed on the scanning device, the scanning device is provided with a hole position corresponding to the first mounting hole 13, and the coil assembly is installed on the scanning device by inserting a plug, a bolt or the like into the first mounting hole 13 and the hole position corresponding to the first mounting hole 13.

[0037] With reference to Figure 1 and Figure 2 , the substrate 1 further comprises a mounting block 5 provided with a second mounting hole 51 corresponding to the first mounting hole 13, and the mounting block 5 is used to cooperate with the first mounting hole 13 to enhance the installation stability of the coil assembly 10.

[0038] If only the first mounting hole 13 on the substrate 1 is used to cooperate with the structure in the scanning device to install the coil assembly 10, the installation of the coil assembly 10 is not very stable. After the mounting block 5 is provided, the thickness of the installation position is increased, and the cooperation of the coil assembly 10 with the structure in the scanning device is much more stable, effectively enhancing the installation stability.

[0039] With reference to Figure 2 、 Figure 3 , the coil assembly 10 further comprises a connecting terminal 6 provided with two sockets at two ends, respectively, and the coil 2 is inserted into one socket and the connecting wire is inserted into the other socket.

[0040] The connecting terminal 6 is provided to connect the coil 2 and the connecting wire 3, specifically, the connecting terminal 6 is plugged with the coil 2 and the connecting wire 3, ensuring the accurate transmission of electrical signals in the first coil body 21, the second coil body 22 and the connecting wire 3; this connection method is more convenient than the traditional welding or winding method, and can be disconnected at any time without the need for re-welding or winding.

[0041] In the optional embodiment of the utility model, the substrate 1 and / or the connecting block 4 and / or the mounting block 5 are made of epoxy resin glue.

[0042] The epoxy resin glue has the advantages of small curing shrinkage, good processability, good corrosion resistance and dielectric performance, good heat resistance, good stability and wide application range, and has excellent electrical insulation performance.

[0043] With reference to Figure 4 , the substrate 1 is provided with a plurality of through holes 14.

[0044] The plurality of through holes 14 provided on the substrate 1 can help to improve the ventilation performance of the substrate 1, promote air circulation, help heat dissipation, prevent equipment overheating, and improve the stability and reliability of the coil assembly 10. On the other hand, the plurality of through holes 14 can also be used for guiding air flow, installing sensors or other accessories, etc., to provide hole positions for installing other plug-in accessories, so that the coil assembly 10 has good expansion capability.

[0045] In the optional embodiment of the present application, the thickness of the substrate 1 is in the range of 0.5mm to 1.0mm. Preferably, the thickness of the substrate 1 is 0.75mm.

[0046] Excessive thickness of the substrate 1 may cause uneven heating of the substrate, and the substrate with an excessively small thickness may have poor stability and may cause local overheating inside the coil, thus damaging the coil. The substrate 1 with an appropriate thickness usually has high strength and stability, and can better withstand external stress and pressure, thus improving the durability and reliability of the coil assembly 10. The substrate 1 with an appropriate thickness has better heat conduction performance, which is helpful to the uniform distribution and heat dissipation of the internal temperature of the coil assembly 10, thus improving the working efficiency and stability of the coil assembly 10. Therefore, the thickness of the substrate 1 is limited in the present embodiment, and the thickness of the substrate 1 is in the range of 0.5mm to 1.0mm.

[0047] The present application also discloses a scanning device comprising the coil assembly 10 as described above. The coverage of the coil assembly 10 can be adjusted according to the number of the plate body and the coil body.

[0048] The scanning device comprises the same structure and advantages as the coil assembly 10 in the foregoing embodiments, and the structure and advantages of the coil assembly 10 have been described in detail in the foregoing embodiments, which will not be described herein.

[0049] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some technical features can be replaced by equivalents. All these modifications and replacements shall fall within the protection scope of the claims of the present application.

Claims

1. A coil assembly, characterized by, The coil assembly comprises: a substrate comprising a first plate body and a second plate body, the first plate body being spliced with the second plate body; a coil comprising a first coil body and a second coil body and a connecting line, the first coil body being coiled on the first plate body, the second coil body being coiled on the second plate body; a connecting line for connecting the first coil body and the second coil body.

2. The coil assembly of claim 1, wherein, The coil assembly further comprises a connecting block, which is arranged in the thickness direction of the substrate and located at the splicing position of the first plate body and the second plate body, and an adhesive layer is arranged between the substrate and the connecting block.

3. The coil assembly of claim 1, wherein, The first plate body and the second plate body are both arched, the first coil body is arranged on the arch back of the first plate body, the second coil body is arranged on the arch back of the second plate body, the first plate body is provided with a first avoiding hole, the second plate body is provided with a second avoiding hole, the connecting line is arranged on the side of the substrate away from the coil, and the two ends of the connecting line respectively pass through the first avoiding hole and the second avoiding hole to respectively connect the first coil body and the second coil body.

4. The coil assembly of claim 1, wherein, The substrate is provided with a first mounting hole, and the mounting hole is used for mounting the coil assembly on a scanning device.

5. The coil assembly of claim 4, wherein, The substrate further comprises a mounting block, the mounting block is provided with a second mounting hole corresponding to the first mounting hole, and the mounting block is used for cooperating with the first mounting hole to enhance the mounting stability of the coil assembly.

6. The coil assembly of claim 3, wherein, The coil assembly further comprises a connecting terminal, two sockets are respectively arranged at the two ends of the connecting terminal, the coil is inserted into one of the sockets, and the connecting line is inserted into the other socket.

7. The coil assembly of claim 5, wherein, The substrate and / or the mounting block are made of epoxy glue.

8. The coil assembly of any of claims 1-6, wherein, The substrate is provided with a plurality of through holes.

9. The coil assembly of any of claims 1-6, wherein, The thickness of the substrate ranges from 0.5 mm to 1.0 mm.

10. A scanning device, characterized by The coil assembly comprises any one of the coil assemblies according to claims 1-9. The coil assembly comprises any one of the coil assemblies according to claims 1-9.

Images