Coil assembly and scanning mechanism
By spiral cutting on the copper plate and rolling the circle to form the coil assembly, the problem of limited coil structure size in the prior art is solved, and a larger size coil assembly is realized, which simplifies the operation process and improves the accuracy and efficiency of scanning.
Patent Information
- Application Number
- CN202420530052.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-14
AI Technical Summary
In the prior art, the coil structure size is limited, resulting in inconvenient operation during scanning.
By spiral cutting on the copper plate, the coil is formed and protected by coiled circles and films, the expansion and stability of the coil assembly are achieved.
The size expansion of the coil assembly is achieved, the operation process is simplified, the accuracy and efficiency of scanning are improved, while the coil is protected and damage and short circuits are avoided.
Smart Images
Figure CN222599818U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuclear magnetic resonance imaging, in particular to a coil component and a scanning mechanism. Background Art
[0002] Magnetic resonance imaging (MRI) has become a common imaging examination method. As a new imaging examination technology, MRI has excellent diagnostic functions for various solid organs, heart and large blood vessels in the human body. Compared with other auxiliary examination methods, MRI has the advantages of more imaging parameters, faster scanning speed, higher tissue resolution and clearer images.
[0003] In order to generate image data in a nuclear magnetic resonance imaging apparatus, it is necessary to detect MR signals from a biological body. Generally, the radio frequency signal is detected by a radio frequency coil structure provided in the nuclear magnetic resonance imaging apparatus. The radio frequency coil structure includes a transmitting radio frequency coil for exciting the rotation of the nuclei of the diagnostic target part of the subject by irradiating the radio frequency pulse, and a receiving radio frequency coil for detecting the MR signals from the rotation of the nuclei of the subject generated by the excitation.
[0004] However, the size of the radio frequency coil structure in the prior art is limited, and the human body or object is often required to be repeatedly moved in the magnetic resonance imaging device to obtain more accurate imaging results, causing artificial inconvenience. Utility Model Content
[0005] The technical problem to be solved by the embodiments of the utility model is to provide a coil assembly and a scanning mechanism to solve the problem in the prior art that the coil structure size is limited, resulting in inconvenient operation during the scanning process.
[0006] In the first aspect, the utility model discloses a coil assembly, comprising: at least one copper plate and an adhesive film, the copper plate is rolled into a circle, a spiral first cutting groove is provided on the copper plate, so that the copper plate can be cut into a coil, the two ends of the coil are respectively a first end and a second end, the first end is located on the inner side of the coil, and the second end is located on the outer side of the coil; the adhesive film is attached to the convex side of the copper plate.
[0007] Optionally, a plurality of second cutting grooves are further provided on the copper plate, and the second cutting grooves are arranged to intersect with the first cutting grooves.
[0008] Optionally, there is an included angle between the second cutting groove and the first cutting groove, and the included angle is 30° to 150°.
[0009] Optionally, the copper plate includes a first tangent portion and a second tangent portion, the second tangent portion is located between the two first tangent portions, the second tangent portion includes a cross-cutting area and a sensing area, the second cutting grooves are respectively arranged in the first tangent portion and the cross-cutting area, the sensing area surrounds the cross-cutting area, and the cross-cutting area is arranged corresponding to the first end.
[0010] Optionally, when there are two copper plates, the coil assembly further includes a connecting wire, and the connecting wire is used to connect the two copper plates.
[0011] Optionally, a first avoidance hole and a second avoidance hole are provided on the adhesive film, the first avoidance hole is arranged corresponding to the first end, and the second avoidance hole is arranged corresponding to the second end; the connecting line passes through the first avoidance hole respectively to connect the two first ends, and the connecting line is arranged on the side of the adhesive film away from the copper plate.
[0012] Optionally, the adhesive film is provided with a plurality of through holes.
[0013] Optionally, a third cutting groove is further provided on the copper plate, and the third cutting groove is located at the edge of the copper plate.
[0014] Optionally, the copper plate has a thickness of 1.8 mm to 5 mm.
[0015] In a second aspect, the utility model further discloses a scanning mechanism, comprising the coil assembly in any one of the above items.
[0016] Compared with the prior art, the coil assembly and scanning mechanism provided by the embodiment of the utility model have the beneficial effect that: a spiral cutting is performed on the copper plate to form a first cutting groove, and the copper plate becomes a spirally wound coil correspondingly, so the coil has two ends, namely a first end and a second end. When multiple copper plates are cut into coils, the connection between different first ends and / or second ends can be relied on, so that the coil assembly composed of multiple coils has a larger size, can detect and scan more areas during use, and does not need to frequently adjust the position of the human body or objects to scan more areas for imaging, so it can simplify the operation. After the copper plate is cut, the copper plate is rolled into a circle, so that the coil becomes a curved coil, which can adapt to the scanning mechanism and the human body, and achieves the purpose of making the scanning effect better and more accurate. A film is attached to the convex side of the copper plate, which can protect the coil. The film can prevent the coil from being eroded and damaged by the external environment, and can also play a certain insulating role to avoid short circuit or leakage between the coil and other components. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:
[0018] Figure 1 This is one of the schematic diagrams of the coil assembly provided by the embodiment of the utility model;
[0019] Figure 2 It is a schematic diagram of a copper plate provided in an embodiment of the utility model;
[0020] Figure 3 This is the second schematic diagram of the coil assembly provided by the embodiment of the utility model.
[0021] The reference numerals in the figures are:
[0022] 1000, coil assembly; 100, copper plate; 101, coil; 1011, first end; 1012, second end; 102, first cutting groove; 103, second cutting groove; 104, third cutting groove; 105, first tangent portion; 106, second tangent portion; 1061, cross-cutting area; 1062, induction area; 200, adhesive film; 201, first avoidance hole; 202, second avoidance hole; 203, through hole; 300, connecting wire. DETAILED DESCRIPTION
[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.
[0024] The present utility model embodiment provides a coil assembly 1000, such as Figure 1-3 As shown, the coil assembly 1000 includes: at least one copper plate 100 and an adhesive film 200, the copper plate 100 is rolled into a circle, and a spiral first cutting groove 102 is provided on the copper plate 100 so that the copper plate 100 can be cut into a coil 101, and the two ends of the coil 101 are respectively a first end 1011 and a second end 1012, the first end 1011 is located on the inner side of the coil 101, and the second end 1012 is located on the outer side of the coil 101; the adhesive film 200 is attached to the convex side of the copper plate 100.
[0025] It should be noted that, in this embodiment, the copper plate 100 is curled so that the line between the two opposite sides of the copper plate 100 is located on the diameter of the curl, that is, the angle between the two sides and the line between the center of the circle is a right angle.
[0026] A spiral cut is performed on the copper plate 100 to form a first cutting groove 102, and the copper plate 100 becomes a spirally wound coil 101 accordingly, so the coil 101 has two ends, namely a first end 1011 and a second end 1012. When a plurality of copper plates 100 are cut into coils 101, the connection between different first ends 1011 and / or second ends 1012 can be relied on, so that the coil assembly 1000 composed of a plurality of coils 101 has a larger size, can detect and scan more areas during use, and does not need to frequently adjust the position of the human body or article to scan more areas for imaging, so it can play the effect of simplifying the operation. After the copper plate 100 is cut, the copper plate 100 is rolled into a circle, so that the coil 101 becomes a curved coil 101, which can be adapted to the scanning mechanism and the human body, and plays the purpose of making the scanning effect better and more accurate. A film 200 is attached to the convex side of the copper plate 100, which can play the role of protecting the coil 101. The adhesive film 200 can prevent the coil 101 from being corroded and damaged by the external environment, and can also play a certain insulating role to prevent short circuit or leakage between the coil 101 and other components. In actual production, a rectangular or square copper plate 100 is first cut, and then the adhesive film 200 and the copper plate 100 are fixed by hot pressing, and then the first cutting groove 102 is carved according to the pattern, and finally rolled into a round shape for shipment.
[0027] Specifically, copper is a good conductive material. In this embodiment, oxygen-free copper is used as the raw material of the copper plate 100. By cutting the copper plate 100 into the coil 101, the conductive performance of the coil 101 can be effectively improved. The spiral first cutting groove 102 helps to cut the copper plate 100 into the coil 101, ensuring that the shape and size of the coil 101 meet the design requirements, thereby optimizing the electrical performance of the coil 101.
[0028] Specifically, by cutting the first cutting groove 102 on the copper plate 100 to form the coil 101, batch production of the coil 101 can be achieved. This design simplifies the manufacturing process of the coil assembly 1000, improves production efficiency, and also reduces installation costs.
[0029] refer to Figure 2 A plurality of second cutting grooves 103 are also provided on the copper plate 100 , and the second cutting grooves 103 are arranged to intersect with the first cutting grooves 102 .
[0030] By providing a plurality of second cutting grooves 103 on the copper plate 100 and intersecting the first cutting grooves 102, the copper plate 100 can have a certain bending space when the copper plate 100 is rolled, and the tension and pressure at the curling position of the copper plate 100 can be released. Providing the second cutting grooves 103 on the copper plate 100 can effectively reduce the stress concentration phenomenon of the copper wire. When the copper plate 100 is curled, if there is not enough bending space, the copper plate 100 may be subjected to excessive tension and stress, resulting in stress concentration, thereby affecting the stability and durability of the coil assembly 1000. The provision of the second cutting grooves 103 can alleviate this situation and make the stress more evenly distributed.
[0031] In an optional embodiment of the present invention, there is an angle between the second cutting groove 103 and the first cutting groove 102 , and the angle is 30° to 150°.
[0032] By setting a proper angle, the second cutting groove 103 can be adjusted to have different angles in different areas and different positions of the first cutting groove 102 to adapt to the different stresses and tensions of the copper plate 100 in different areas, thereby optimizing the curling effect of the copper plate 100. The stability and durability of the coil assembly 1000 can be improved.
[0033] Specifically, the appropriate angle between the first cutting groove 102 and the second cutting groove 103 helps to enhance the structural stability of the coil assembly 1000. Through a specific angle, the structure of the copper plate 100 can be changed to make it more uniform and stable, thereby improving the reliability and service life of the coil assembly 1000.
[0034] refer to Figure 2 The copper plate 100 includes a first tangent portion 105 and a second tangent portion 106, the second tangent portion 106 is located between the two first tangent portions 105, the sensing portion includes a cross-cutting area 1061 and a sensing area 1062, the second cutting groove 103 is respectively arranged in the first tangent portion 105 and the cross-cutting area 1061, the sensing area 1062 surrounds the cross-cutting area 1061, and the cross-cutting area 1061 is arranged corresponding to the first end 1011.
[0035] The second cutting groove 103 on the copper plate 100 is arranged in the cross-cutting area 1061 within the first tangent portion 105 and the second tangent portion 106. The second cutting groove 103 is used to release the stress of the corresponding area at the position where cutting is required, thereby improving the stability and reliability of the coil component 1000.
[0036] The above layout and the arrangement area of the second cutting groove 103 can enhance the structural stability of the copper plate 100. This layout can disperse stress and pressure, reduce deformation and vibration of the copper plate 100 during operation, and improve the reliability and durability of the coil assembly 1000.
[0037] refer to Figure 1 and Figure 3 When there are two copper plates 100 , the coil assembly 1000 further includes a connecting wire 300 , and the connecting wire 300 is used to connect the two copper plates 100 .
[0038] By connecting the two copper plates 100 together through the connecting wire 300, good transmission of electrical signals between the two copper plates 100 can be ensured. This helps to maintain the integrity of the coil assembly 1000, avoid signal interruption or distortion, and improve the stability and reliability of the coil assembly 1000. The provision of the connecting wire 300 can optimize the electromagnetic induction effect of the entire coil assembly 1000 and improve the efficiency and stability of the electromagnetic induction effect.
[0039] It should be noted that, as in the above embodiment, when there are two copper plates 100, the connecting wire 300 is a connecting wire 300 with only two ends, which is used to connect the two copper plates 100. When there are multiple copper plates 100, the copper plates 100 will also be connected by connecting wires 300, and such connecting wires 300 will have multiple ends for connecting multiple copper plates 100, so that the coil assembly 1000 maintains consistent electromagnetic induction.
[0040] refer to Figure 1 and Figure 3 A first avoidance hole 201 and a second avoidance hole 202 are provided on the adhesive film 200, the first avoidance hole 201 is arranged corresponding to the first end 1011, and the second avoidance hole 202 is arranged corresponding to the second end 1012; the connecting wires 300 pass through the first avoidance holes 201 to connect the two first ends 1011, and the connecting wires 300 are arranged on the side of the adhesive film 200 away from the copper plate 100.
[0041] The first avoidance hole 201 is arranged on the adhesive film 200 corresponding to the first end 1011, and the connecting wire 300 passes through the first avoidance hole 201 to be connected to the first end 1011. On the one hand, it is convenient to connect the first end 1011 with the connecting wire 300, and on the other hand, the connecting wire 300 can be arranged on the side of the adhesive film 200 away from the copper plate 100, that is, the connecting wire 300 is arranged on the back of the curved coil 101, which can avoid affecting the imaging of the coil assembly 1000.
[0042] Specifically, the connection line 300 passes through the first avoidance hole 201 to connect the two first ends 1011, which helps to optimize the electrical connection. The position and design of the connection line 300 can affect the flow path of the current and the stability of the signal transmission, thereby improving the electrical performance and efficiency of the coil assembly 1000.
[0043] Specifically, the arrangement of the avoidance holes and the connecting wires 300 on the adhesive film 200 can simplify the manufacturing and maintenance process of the coil assembly 1000. This design makes the coil assembly 1000 easier to assemble and disassemble, facilitates maintenance and replacement of components, and reduces maintenance costs and time.
[0044] It should be noted that the second avoidance hole 202 corresponds to the second end 1012 , and the second end 1012 may need to be connected to other components in the scanning mechanism, so the second avoidance hole 202 is provided here to facilitate the connection of the second end 1012 .
[0045] refer to Figure 3 , a plurality of through holes 203 are provided on the adhesive film 200 .
[0046] Providing a plurality of through holes 203 on the adhesive film 200 can help improve the ventilation performance of the adhesive film 200, promote air circulation, help dissipate heat, prevent the device from overheating, and improve the stability and reliability of the coil assembly 1000. On the other hand, providing a plurality of through holes 203 can also be used to guide airflow, install sensors or other accessories, etc., and provide holes for installing other plug-in accessories, so that the coil assembly 1000 has better expansion capabilities.
[0047] refer to Figure 2 A third cutting groove 104 is also provided on the copper plate 100 , and the third cutting groove 104 is located at the edge of the copper plate 100 .
[0048] The third cutting groove 104 is located at the edge of the copper plate 100, which helps to allow the edge of the copper plate 100 to have a certain bending space when the copper plate 100 is rolled, thereby releasing the tension and stress of the copper plate 100 in the corresponding area. The third cutting groove 104 is arranged at the edge of the copper plate 100 to effectively reduce the stress concentration phenomenon at the edge of the copper plate 100. When the copper plate 100 is curled, if there is not enough bending space at the edge of the copper plate 100, the copper plate 100 may be subjected to excessive tension and stress, resulting in stress concentration, thereby affecting the stability and durability of the coil assembly 1000.
[0049] Specifically, the third cutting groove 104 can increase the stability of the coil assembly 1000. By providing the cutting groove at the edge of the copper plate 100, the deformation and vibration of the copper plate 100 can be reduced, the structural stability of the coil assembly 1000 can be improved, and the risk of damage caused by external factors can be reduced.
[0050] In an optional embodiment of the present invention, the copper plate 100 has a thickness of 1.8 mm to 5 mm.
[0051] The copper plate 100 of appropriate thickness generally has higher strength and stability, can better withstand external stress and pressure, and improve the durability and reliability of the coil assembly 1000. The copper plate 100 of appropriate thickness has better thermal conductivity, which helps to evenly distribute the temperature inside the coil assembly 1000 and dissipate heat, and improve the working efficiency and stability of the coil assembly 1000.
[0052] Specifically, the copper plate 100 within this thickness range is generally easier to handle during processing, has better processing performance, can achieve more complex designs and structures, and improves the customization and flexibility of the coil assembly 1000. On the other hand, the copper plate 100 within this thickness range generally has better corrosion resistance, can effectively extend the service life of the coil assembly 1000, and reduce maintenance costs.
[0053] The embodiment of the utility model further provides a scanning mechanism, comprising the coil assembly 1000 in the aforementioned embodiment.
[0054] The large coverage of the coil assembly 1000 can effectively reduce the operation steps of the scanning mechanism during the scanning process, thereby simplifying the operation.
[0055] The scanning mechanism includes the same structure and beneficial effects as the coil assembly 1000 in the aforementioned embodiment. The structure and beneficial effects of the coil assembly 1000 have been described in detail in the aforementioned embodiment, and will not be repeated here.
[0056] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.
Claims
1. A coil assembly, characterized in that: include: At least one copper plate, the copper plate is rolled into a circle, and a first spiral cutting groove is provided on the copper plate so that the copper plate can be cut into a coil, and the two ends of the coil are respectively a first end and a second end, the first end is located inside the coil, and the second end is located outside the coil; The adhesive film is attached to the convex side of the copper plate.
2. The coil assembly according to claim 1, characterized in that: The copper plate is also provided with a plurality of second cutting grooves, and the second cutting grooves are arranged to intersect with the first cutting grooves.
3. The coil assembly according to claim 2, characterized in that: There is an included angle between the second cutting groove and the first cutting groove, and the included angle is 30° to 150°.
4. The coil assembly according to claim 2, characterized in that: The copper plate includes a first tangent portion and a second tangent portion, the second tangent portion is located between the two first tangent portions, the second tangent portion includes a cross-cutting area and a sensing area, the second cutting grooves are respectively arranged in the first tangent portion and the cross-cutting area, the sensing area surrounds the cross-cutting area, and the cross-cutting area is arranged corresponding to the first end.
5. The coil assembly according to claim 1, characterized in that: When there are two copper plates, the coil assembly further includes a connecting wire, and the connecting wire is used to connect the two copper plates.
6. The coil assembly according to claim 5, characterized in that: The adhesive film is provided with a first avoidance hole and a second avoidance hole, the first avoidance hole is arranged corresponding to the first end, and the second avoidance hole is arranged corresponding to the second end; the connecting wire passes through the first avoidance holes respectively to connect the two first ends, and the connecting wire is arranged on the side of the adhesive film away from the copper plate.
7. The coil assembly according to any one of claims 1 to 5, characterized in that: The adhesive film is provided with a plurality of through holes.
8. The coil assembly according to any one of claims 1 to 5, characterized in that: The copper plate is also provided with a third cutting groove, and the third cutting groove is located at the edge of the copper plate.
9. The coil assembly according to any one of claims 1 to 5, characterized in that: The copper plate has a thickness of 1.8 mm to 5 mm.
10. A scanning mechanism, characterized in that: The coil assembly comprises any one of claims 1 to 9.