A magnetron assembly with adjustable magnetic field

Abstract

The utility model discloses a magnetron assembly of adjustable magnetic field, including magnetron main part, and magnetron main part includes cathode assembly and anode assembly, and the cathode assembly place is provided with permanent magnet no.

Description

Technical Field

[0001] This utility model belongs to the field of magnetron technology, and in particular relates to a magnetron assembly with adjustable magnetic field. Background Technology

[0002] A magnetron is an electronic component that uses a magnetic field to control an electron beam. It features high frequency, high power, and high precision.

[0003] In some fields, the magnetic field strength in the magnetron assembly needs to be adjusted according to different usage requirements. For example, in the medical field, magnetrons can be used in radiotherapy and other related equipment. Adjusting the magnetic field strength can improve the efficiency of diagnosis and treatment, or it can be used to diagnose and treat different diseases. Similarly, in the security inspection field, the magnetic field strength is also adjusted to achieve different applicable effects.

[0004] In applications where the magnetic field strength of a magnetron assembly needs to be adjusted, an electromagnet is typically used to control the trajectory of the electrons. By adjusting the current flowing through the coil in the electromagnet, the magnetic field strength can be adjusted.

[0005] For high-power magnetron assemblies, since the electromagnet generates a lot of heat during operation, related cooling components are used. In actual use, if the magnetron needs to be replaced, the magnetron assembly that has just been used needs to wait for the electromagnet to cool down, which will undoubtedly affect the continuous use of the equipment. Utility Model Content

[0006] The purpose of this invention is to provide a magnetron assembly with an adjustable magnetic field to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a magnetic field adjustable magnetron assembly, comprising a magnetron body, wherein the magnetron body comprises a cathode assembly and an anode assembly, wherein a permanent magnet one is disposed at the cathode assembly, and a permanent magnet two is disposed at the anode assembly, wherein the permanent magnet one and the permanent magnet two are disposed opposite to each other and the polarities of their facing surfaces are opposite.

[0008] A plurality of stacked inserts are provided between permanent magnet one and permanent magnet two. The inserts are detachably connected to each other. The stacking direction of the inserts is perpendicular to the line connecting the distance between permanent magnet one and permanent magnet two. The inserts are used to adjust the amount of magnetic leakage.

[0009] Preferably, it also includes a mounting base, wherein the first permanent magnet and the second permanent magnet are arranged perpendicular to the top surface of the mounting base, and the top or bottom surface of the mounting base is provided with a receiving groove for accommodating the insert.

[0010] Preferably, the magnetron body has a side arm, the cathode assembly is disposed inside the side arm, the permanent magnet has an insertion hole, and the side arm passes through the insertion hole.

[0011] Preferably, the mounting base is provided with a fixing seat, and the magnetron body is fixed on the fixing seat.

[0012] Preferably, the receiving groove is disposed on the bottom surface of the mounting base, and the fixing seat is disposed on the top surface of the mounting base. A connector passes through several inserts and the fixing seat simultaneously. The connector fixes the inserts in the receiving groove and fixes the magnetron body on the fixing seat.

[0013] Preferably, the first permanent magnet and the second permanent magnet are detachably connected to the mounting base.

[0014] The beneficial effects of this utility model are as follows: This solution sets up several mutually detachable inserts, and the manufacturer provides a table of corresponding magnetic field strengths for inserting different inserts. When it is necessary to change the magnetic field of the device, the inserts can be installed or removed according to the corresponding table. In particular, by setting permanent magnet one and permanent magnet two to replace electromagnets for controlling the movement of electrons, there is no problem of electromagnets generating heat during operation, thus eliminating the need for cooling devices, which effectively simplifies the overall structure. It also allows for direct replacement of the magnetron assembly when needed, without waiting for cooling, ensuring the sustainability of operation.

[0015] For magnetron structures with side arms, the length of the side arms affects the overall space occupied by the product. By opening the insertion hole, permanent magnet one can be as close as possible to permanent magnet two, which effectively ensures the basic value of the magnetic field strength and can effectively reduce the quality requirements of permanent magnet one and permanent magnet two.

[0016] By defining the positions of the receiving groove and the fixing seat, and simultaneously connecting and fixing them with the same connector, the structure is effectively simplified. Attached Figure Description

[0017] Figure 1 This is a front structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0019] Figure 3 This is an exploded view of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the receiving groove and the insert in this utility model;

[0021] In the diagram: 1. Magnetron body; 101. Side arm; 2. Permanent magnet one; 201. Insertion hole; 3. Permanent magnet two; 4. Mounting base; 5. Mounting plate; 51. Receiving groove; 6. Insert plate; 7. Fixing base; 8. Connector. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention. Example

[0023] This embodiment uses the 6090 model magnetron as an example, and also uses this model of magnetron to demonstrate the structure of a magnetron with a side arm.

[0024] See Figures 1-4 A magnetic field adjustable magnetron assembly includes a magnetron body 1, which includes a cathode assembly and an anode assembly. A permanent magnet 2 is disposed at the cathode assembly, and a permanent magnet 3 is disposed at the anode assembly. The permanent magnet 2 and the permanent magnet 3 are disposed opposite to each other and their facing polarities are opposite. In this embodiment, the polarity of the end of the permanent magnet 2 facing the permanent magnet 3 is S, and the polarity of the end of the permanent magnet 3 facing the permanent magnet 1 is N.

[0025] A plurality of stacked inserts 6 are provided between the permanent magnet 1 2 and the permanent magnet 2 3. The inserts 6 are detachably connected to each other. The stacking direction of the inserts 6 is perpendicular to the line connecting the distance between the permanent magnet 1 2 and the permanent magnet 2 3. The inserts 6 are used to adjust the amount of magnetic leakage. The material of the inserts can be pure iron.

[0026] This also includes a mounting base 4, with the first permanent magnet 2 and the second permanent magnet 3 arranged perpendicularly to the top surface of the mounting base 4. The top or bottom surface of the mounting base 4 is provided with a receiving groove 51 for accommodating the insert 6. For details, please refer to [link / reference needed]. Figure 1-4 Both permanent magnet one and permanent magnet two are fixed on a vertical side wall plate (not shown). In this embodiment, permanent magnet one and permanent magnet two are respectively in the shape of a ring and a disc. The side wall plate is an inverted U-shaped plate. The side wall plate is vertically fixed on the mounting base. The side wall plate, the mounting base and the insert together form a structure for constraining the outward diffusion of leakage magnetic field.

[0027] The magnetron body 1 has a side arm 101, which is cylindrical. The cathode assembly is located inside the side arm. The permanent magnet 2 3 has an insertion hole 201 (i.e., the permanent magnet 2 is annular). The side arm passes through the insertion hole 201. Specifically, the cathode assembly includes a cathode and an extension rod located on the cathode. The extension rod is located inside the side arm.

[0028] The mounting base is provided with a fixing seat 7, and the magnetron body 1 is fixed on the fixing seat 7. It should be noted that the fixing seat should be made of a non-magnetic material.

[0029] The receiving groove 51 is located on the bottom surface of the mounting base 4, and the fixing seat 7 is located on the top surface of the mounting base 4. A connector 8 passes through several inserts 6 and the fixing seat simultaneously. The connector 8 fixes the inserts 6 in the receiving groove 51 and fixes the magnetron body 1 to the fixing seat 7. The connector 8 can be a bolt or the like. It should be noted that in order to ensure the fixing of the inserts 6, the threaded holes on the magnetron assembly for connecting the connector 8 need to be deep enough. The receiving groove 51 is located on a mounting plate 5, which is fixed to the bottom surface of the mounting base 4 by bolts or the like.

[0030] The permanent magnet 1 and permanent magnet 2 are detachably connected to the mounting base 4.

[0031] Working principle and process:

[0032] With the structure designed in this scheme, when the magnetic field of the equipment needs to be changed, the insert 6 can be installed or removed according to the corresponding table provided by the manufacturer. In particular, by setting permanent magnet 1 2 and permanent magnet 2 3 to replace electromagnets for controlling the movement of electrons, there is no need for the electromagnet to generate heat during operation, thus eliminating the need for cooling devices. This effectively simplifies the overall structure and also allows for direct replacement of the magnetron assembly when needed, without waiting for cooling, ensuring the sustainability of operation.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A magnetron assembly with adjustable magnetic field, characterized in that: The magnetron body includes a magnetron main body (1), which includes a cathode assembly and an anode assembly. A permanent magnet one (2) is provided at the cathode assembly, and a permanent magnet two (3) is provided at the anode assembly. The permanent magnet one (2) and the permanent magnet two (3) are arranged opposite to each other and their surface polarities are opposite. A plurality of stacked inserts (6) are provided between the first permanent magnet (2) and the second permanent magnet (3). The inserts (6) are detachably connected. The stacking direction of the inserts (6) is perpendicular to the line connecting the distance between the first permanent magnet (2) and the second permanent magnet (3). The inserts (6) are used to adjust the amount of magnetic leakage.

2. The adjustable magnetic field magnetron assembly according to claim 1, characterized in that: It also includes a mounting base (4), wherein the first permanent magnet (2) and the second permanent magnet (3) are arranged perpendicular to the top surface of the mounting base (4), and the top or bottom surface of the mounting base (4) is provided with a receiving groove (51) for accommodating the insert (6).

3. The adjustable magnetic field magnetron assembly according to claim 2, characterized in that: The magnetron body (1) is provided with a side arm (101), the cathode assembly is disposed inside the side arm, the permanent magnet (3) is provided with a socket (201), and the side arm is disposed through the socket (201).

4. The adjustable magnetic field magnetron assembly according to claim 3, characterized in that: The mounting base is provided with a fixing seat (7), and the magnetron body (1) is fixed on the fixing seat (7).

5. A magnetic field adjustable magnetron assembly according to claim 4, characterized in that: The receiving groove (51) is disposed on the bottom surface of the mounting base (4), and the fixing seat (7) is disposed on the top surface of the mounting base (4). There is a connector (8) that passes through several inserts (6) and the fixing seat at the same time. The connector (8) fixes the inserts (6) in the receiving groove (51). At the same time, the connector (8) fixes the magnetron body (1) on the fixing seat (7).

6. The magnetic field adjustable magnetron assembly according to claim 2, characterized in that: The permanent magnet one (2) and permanent magnet two (3) are detachably connected to the mounting base (4).

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