Radiating element of magnetron and magnetron

Abstract

The utility model relates to a radiating element of a magnetron, which is provided with a heat-conducting C-shaped main body and locking arms respectively extending from two ends of the C-shaped main body, and the two locking arms face each other; a sleeving hole is formed in the middle of the C-shaped main body and is used for sleeving an anode cylinder of the magnetron, and the sleeving hole can be gradually folded to press the anode cylinder along with the opposite approaching of the two locking arms, so that the inner surface of the sleeving hole is tightly attached to the outer peripheral surface of the anode cylinder; a cooling cavity is formed in the C-shaped body, the cooling cavity extends along the outline of the C-shaped body and surrounds the sleeving hole, and the two ends, in the extending direction, of the cooling cavity communicate with cooling holes preset in the C-shaped body correspondingly. According to the utility model, the contact is ensured, the heat dissipation surface is improved, the cooling cavity extends along the outline of the C-shaped main body and surrounds the sleeving hole, the heat exchange capability is improved, the heat dissipation effect is better, the output power of the magnetron is greatly improved, and the magnetron is suitable for industrial use with large output. The structure is simple and reasonable, practicability is high, and application and popularization are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnetron technical field, especially high output type's industrial magnetron. BACKGROUND

[0002] Magnetron is a kind of electric vacuum device for generating microwave energy, and it is essentially a diode placed in constant magnetic field. The electrons in the tube are controlled by the constant magnetic field and the constant electric field perpendicular to each other, and interact with high-frequency electromagnetic field, convert the energy obtained from the constant electric field into microwave energy, so as to achieve the purpose of generating microwave energy. Since magnetron will generate a large amount of heat when working, if it cannot be cooled in time, it will cause the damage of magnetron, so a plurality of cooling fins are arranged in the magnetron to discharge heat in time by air cooling. However, for the small output magnetron used in household microwave oven and the like, it can also be cooled by air cooling, but for the large output industrial magnetron, such as industrial heating, it cannot be cooled by air cooling, and needs to be cooled by using liquid medium such as water cooling. Some methods are used to cool the magnetron, such as arranging refrigerant pipes around the cooling block and supplying liquid refrigerant, but the contact surface and heat transfer problem greatly affect the output power of the magnetron. Therefore, it is necessary to design a more reasonable heat dissipation element of magnetron to improve the working efficiency and service life of the magnetron. SUMMARY

[0003] The utility model discloses a kind of heat dissipation elements of magnetron and magnetrons, to better improve the working efficiency and service life of the magnetron.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of heat dissipation element of magnetron, the heat dissipation element has heat-conducting C-shaped main body and locking arm extended from the two ends of C-shaped main body respectively, two locking arms face each other;The middle part of the C-shaped main body is provided with a sleeve hole, the sleeve hole is used to sleeve the anode cylinder of magnetron, and the sleeve hole can gradually contract and press the anode cylinder by approaching the two locking arms, so that the inner surface of the sleeve hole is tightly attached to the outer peripheral surface of the anode cylinder;The inside of the C-shaped main body is provided with a cooling cavity, the cooling cavity extends along the contour of the C-shaped main body and surrounds the sleeve hole, and the two ends of the cooling cavity in the extension direction are respectively communicated with the cooling hole preset on the C-shaped main body.

[0006] The above scheme further is that the two ends of the cooling cavity respectively extend into the orthographic projection area of the two locking arms.

[0007] The above scheme further is that the wall thickness of the inner side wall of the cooling cavity is less than or equal to the wall thickness of the outer side wall of the cooling cavity.

[0008] The cooling cavity is further enclosed by a hollow axial portion of the C-shaped body and two axial end covers.

[0009] The two locking arms are integrally formed with the C-shaped body and are locked towards each other by a screw.

[0010] The utility model further provides a magnetron, the magnetron contains the heat dissipation element of above.

[0011] The anode cylinder of the magnetron has a sleeving abutting step, which is in abutting contact with the corresponding axial end of the C-shaped body and forms a heat transfer relationship.

[0012] With the above structure, the utility model has the following beneficial effects: the heat dissipation element is sleeved with the anode cylinder of the magnetron through the sleeving hole, and the sleeving hole can gradually contract and press the anode cylinder as the two locking arms approach each other, so that the inner surface of the sleeving hole is in close contact with the outer peripheral surface of the anode cylinder, ensuring the contact and improving the heat dissipation surface. BRIEF DESCRIPTION OF DRAWINGS

[0013] ATTACHED Figure 1 It is a preferred embodiment structure diagram of the heat dissipation element of the utility model.

[0014] ATTACHED Figure 2 It is a preferred embodiment structure diagram of the heat dissipation element of the utility model. Figure 1 It is an internal structure diagram of the embodiment.

[0015] ATTACHED Figure 3 It is an embodiment diagram of the heat dissipation element assembled to the magnetron of the utility model.

[0016] ATTACHED Figure 4 It is an embodiment diagram of the heat dissipation element assembled to the magnetron of the utility model. Figure 3 It is an embodiment diagram of the heat dissipation element assembled to the magnetron of the utility model. DETAILED DESCRIPTION

[0017] The utility model will be further described below with reference to the drawings to fully understand the purpose, characteristics and effects of the utility model.

[0018] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0019] Referring to Figure 1 、 2 , 3, 4, it is the preferred embodiment schematic diagram of the utility model, the utility model relates to a magnetron heat dissipation element, the heat dissipation element is in the form of a clamp, the heat dissipation element has heat-conducting C-shaped body 1 and locking arm 2 extended from both ends of C-shaped body 1 respectively, two locking arms 2 face each other, which is beneficial to assembly connection. The central part of the C-shaped body 1 is provided with a sleeve hole 11, the sleeve hole 11 is used for sleeving the anode cylinder 3 of the magnetron, and the sleeve hole 11 can gradually contract and press the anode cylinder 3 with the two locking arms 2 approaching each other, so that the inner surface of the sleeve hole 11 is tightly attached to the outer peripheral surface of the anode cylinder, stable installation and close contact are obtained, and the heat dissipation contact surface is improved. The inside of the C-shaped body 1 is provided with a cooling cavity 12, which extends along the contour of the C-shaped body 1 and surrounds the sleeve hole 11, the cooling cavity 12 is in the form of hollowing out the inside of the C-shaped body 1, and the two ends of the cooling cavity 12 in the extension direction are respectively communicated with the cooling hole 13 pre-set on the C-shaped body 1, forming one inlet and one outlet, and constructing a circulating cooling system, so that the liquid coolant can be input into the cooling cavity 12, the cooling capacity is improved by wrapping the outer periphery of the anode cylinder 3, and the anode cylinder is forcibly cooled and the heat generation is inhibited, the liquid coolant can be chilled water, of course, it can also be liquid oil, which is not limited here.

[0020] In the embodiment, corresponding bosses 14 are also respectively arranged on the two ends of the C-shaped body 1, the bosses are horizontally extended from the roots of the locking arms 2 and correspondingly inclined, the cooling holes 13 are arranged on the corresponding bosses 14, which is convenient for manufacturing, assembling and maintaining. The two ends of the cooling cavity 12 respectively extend into the orthographic projection areas of the two locking arms 2, effectively increase the cooling volume and maximize the wall thickness of the cooling cavity 12, which helps to improve the cooling effect.

[0021] In the embodiment, the cooling cavity 12 is formed by the hollow axial part and the two axial end covers of the C-shaped body 1, and the hollow axial part is hollowed out to facilitate the manufacture of the cooling cavity 12 and to obtain a better inner and outer wall structure, which can be increased or decreased according to actual needs. In the embodiment, the wall thickness of the inner wall of the cooling cavity is less than or equal to the wall thickness of the outer wall of the cooling cavity, which can ensure that the inner wall is in contact with the anode cylinder 3 to help the liquid coolant of the cooling cavity absorb the heat generated by the anode cylinder 3 and improve the cooling capacity; the outer wall can protect the structure and provide heat dissipation, and the different wall thicknesses of the inner and outer walls can form a heat dissipation difference to better cool the anode cylinder 3.

[0022] In the embodiment, the two locking arms 2 are integrally manufactured with the C-shaped body 1, and the two locking arms 2 are locked and close to each other by the screw 4, which is simple in structure and convenient to assemble and implement. When the screw 4 is locked, the two locking arms 2 are pulled close to each other by the screw thread, and the sleeve hole 11 is gradually closed and pressed against the anode cylinder 3, so that the inner surface of the sleeve hole 11 is tightly attached to the outer periphery of the anode cylinder to form a good heat transfer system and facilitate heat exchange.

[0023] Figure 3 、 4 As shown in the drawings, the utility model also provides a magnetron, this magnetron 100 contain anode cylinder 3, filter box 5 and above-mentioned heat dissipation element, anode cylinder 3 protrudes in filter box 5, heat sink sleeve is connected on anode cylinder 3, and anode cylinder 3 is cooled by the liquid coolant in cooling cavity 12, and anode cylinder is forcedly cooled and heat generation is inhibited. In the embodiment, the anode cylinder 3 of the magnetron has a sleeving abutting step 31, which is abutted and formed in heat transfer relationship with the corresponding axial end of the C-shaped body 1, further increasing the contact surface of heat exchange and improving the cooling capacity.

[0024] The utility model discloses a sleeve hole of heat dissipation element is connected with the anode cylinder of magnetron, and the sleeve hole can gradually close and press the anode cylinder by the close to each other of two locking arms, so that the inner surface of the sleeve hole is tightly attached to the outer periphery of the anode cylinder, the contact is ensured, the heat dissipation surface is improved, and the inside of the C-shaped body is provided with a cooling cavity, which extends along the contour of the C-shaped body and surrounds the sleeve hole, obtains a larger heat exchange space, and cooperates with the circulation of liquid coolant to absorb heat, improves the heat exchange capacity, and the heat dissipation effect is better, greatly improves the output power of the magnetron, and is suitable for industrial use with large output. The structure is simple, reasonable and practical, and is suitable for popularization and application.

[0025] Although the preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, the present application should not be limited to the structure and operation described above and shown in the drawings, and those skilled in the art can make many equivalent improvements and changes to the above embodiments without departing from the concept and scope of the present application through logical analysis, reasoning or limited experiments, but these improvements and changes should all belong to the scope of the present application.

Claims

1. A heat dissipating element of a magnetron, characterized by, The heat dissipation element has a heat-conducting C-shaped body (1) and locking arms (2) extending from both ends of the C-shaped body (1), and the two locking arms (2) face each other; the middle part of the C-shaped body (1) is provided with a sleeving hole (11) for sleeving an anode cylinder (3) of a magnetron, and the sleeving hole (11) can gradually contract and press the anode cylinder (3) when the two locking arms (2) face each other, so that the inner surface of the sleeving hole (11) is tightly attached to the outer peripheral surface of the anode cylinder; the inside of the C-shaped body (1) is provided with a cooling cavity (12) extending along the contour of the C-shaped body (1) and surrounding the sleeving hole (11), and the two ends of the cooling cavity (12) in the extension direction are respectively communicated with the cooling holes (13) pre-provided on the C-shaped body (1).

2. A heat sink element for a magnetron as claimed in claim 1, characterised in that The two ends of the cooling cavity (12) respectively extend into the orthographic projection area of the two locking arms (2).

3. A heat sink element for a magnetron as claimed in claim 1, wherein The wall thickness of the inner side wall of the cooling cavity (12) is less than or equal to the wall thickness of the outer side wall of the cooling cavity.

4. A heat sink element for a magnetron as claimed in claim 1 or 2 or 3, characterised in that, The cooling cavity (12) is constructed by surrounding the hollow axial part of the C-shaped body (1) and the two axial end covers.

5. A heat sink element for a magnetron as claimed in claim 1, wherein The two locking arms (2) are integrally made with the C-shaped body (1), and the two locking arms (2) face each other by being locked by the screw (4).

6. A magnetron, characterized by The magnetron contains the heat dissipation element of any one of the above claims 1-5.

7. A magnetron according to claim 6, wherein The anode cylinder (3) of the magnetron has a sleeving abutting step (31), and the sleeving abutting step (31) is abutted and fitted with the corresponding axial end of the C-shaped body (1) and forms a heat transfer relationship.

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