Core-through capacitor based on magnetron

Abstract

The feed-through capacitor based on the magnetron comprises a metal base plate, a ceramic insulating medium and a conductive lead pin, a groove is formed in the surface of the ceramic insulating medium and divides the surface of the ceramic insulating medium into a left capacitor area and a right capacitor area, electrode layers are arranged on the left capacitor area and the right capacitor area respectively, and the conductive lead pin is arranged on the metal base plate. Two through holes are also formed in the surface of the ceramic insulating medium, are arranged in a bilateral symmetry manner and are respectively positioned on the left side and the right side of the groove; a groove is formed in the upper surface of the ceramic insulating medium, the electrode layer on the upper surface of the ceramic insulating medium is partitioned left and right under blocking of the groove, and the two conductive pins are connected with the electrode layer on the left capacitor area or the electrode layer on the right capacitor area under the connecting action of the flange to form two feed-through capacitors which are connected with each other. The volume is greatly reduced, and the high voltage resistance can be realized, so that the device is suitable for being used in magnetrons.

Description

Technical Field

[0001] The utility model relates to the field of feedthrough capacitors, and particularly relates to a feedthrough capacitor based on a magnetron. Background Art

[0002] Due to its characteristic of efficiently generating high-frequency output, the magnetron has been widely used in many microwave application equipment fields such as radar devices, medical devices, high-frequency electronic food heaters, and semiconductor manufacturing devices. When installing multiple feedthrough capacitors, in order to make the feedthrough capacitors withstand high voltage, it is necessary to thicken the ceramic insulating medium of the feedthrough capacitors. However, the internal space of the magnetron is limited, which makes it difficult to accommodate the multiple feedthrough capacitors with thickened ceramic insulating media. Therefore, it has become an urgent problem to provide a feedthrough capacitor based on a magnetron with a small volume and convenient installation. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In order to solve the above problems of the prior art, the utility model provides a feedthrough capacitor based on a magnetron with a small volume and convenient installation.

[0005] (2) Technical Solutions

[0006] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] A feedthrough capacitor based on a magnetron includes a metal bottom plate, a ceramic insulating medium, and conductive pins;

[0008] The ceramic insulating medium is fixedly installed on the metal bottom plate, and a groove is formed on the surface of the ceramic insulating medium. The groove divides the surface of the ceramic insulating medium into a left capacitor region and a right capacitor region. Electrode layers are provided on both the left capacitor region and the right capacitor region. Two through holes are also formed on the surface of the ceramic insulating medium. The two through holes are symmetrically arranged left and right and are respectively located on the left and right sides of the groove;

[0009] Flanges are fixedly connected to the surfaces of both the left capacitor region and the right capacitor region. The conductive pins are fixedly connected to the flanges and are located in the through holes without contacting the inner walls of the through holes.

[0010] Preferably, the conductive pins are made of hollow copper tubes.

[0011] Preferably, connection holes corresponding to the conductive pins are formed on the metal bottom plate.

[0012] Preferably, it further includes an upper tube body and a lower tube body. The upper tube body and the lower tube body are respectively installed on the upper and lower sides of the metal bottom plate. The upper tube body sleeves the ceramic insulating medium, and epoxy resin is poured into both the upper tube body and the lower tube body.

[0013] Preferably, a connection groove corresponding to the lower tube body is opened at the bottom of the metal bottom plate.

[0014] (III) Beneficial effects

[0015] The beneficial effects of the present utility model are as follows: By adopting the above technical solution, the electrode layer on the upper surface of the ceramic insulating medium is divided into left and right regions under the barrier of the groove. Under the connection action of the flange, the two conductive pins are respectively connected to the electrode layers on the left capacitor region or the right capacitor region, forming two interconnected feed-through capacitors. In this application, the two feed-through capacitors share a ceramic insulating medium and a metal bottom plate, greatly reducing the volume and being able to withstand high voltage, making it suitable for use in a magnetron. Description of the drawings

[0016] Figure 1 is a schematic structural diagram of a feed-through capacitor based on a magnetron;

[0017] Figure 2 is an exploded structural diagram of a feed-through capacitor based on a magnetron.

[0018]

Description of the reference numerals

[0019] 1. Conductive pin;

[0020] 2. Upper tube body;

[0021] 3. Ceramic insulating medium;

[0022] 4. Metal bottom plate;

[0023] 5. Lower tube body;

[0024] 6. Flange. Specific embodiments

[0025] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below with reference to the drawings through specific embodiments.

[0026] Please refer to Figures 1 to 2 , the present utility model provides a feed-through capacitor based on a magnetron, including a metal bottom plate 4, a ceramic insulating medium 3, and a conductive pin 1;

[0027] The ceramic insulating medium 3 is fixedly installed on the metal base plate 4. A groove is formed on the surface of the ceramic insulating medium 3. The groove divides the surface of the ceramic insulating medium 3 into a left capacitance area and a right capacitance area. Electrode layers are provided on both the left capacitance area and the right capacitance area. Two through holes are also formed on the surface of the ceramic insulating medium 3. The two through holes are symmetrically arranged left and right and are respectively located on the left and right sides of the groove.

[0028] Flanges 6 are fixedly connected to the surfaces of both the left capacitance area and the right capacitance area. The conductive pins 1 are fixedly connected to the flanges 6 and are located within the through holes without contacting the inner walls of the through holes.

[0029] During use, the electrode layers on the upper surface of the ceramic insulating medium 3 are partitioned left and right under the barrier of the groove. The two conductive pins 1 are respectively connected to the electrode layers on the left capacitance area or the right capacitance area under the connection of the flanges 6, forming two interconnected feedthrough capacitors. In this application, the two feedthrough capacitors share one ceramic insulating medium 3 and one metal base plate 4, greatly reducing the volume and being able to withstand high voltages, making it suitable for use in magnetrons.

[0030] In this embodiment, the conductive pins 1 are made of hollow copper tubes. When the hollow copper tube-made conductive pins 1 are connected to electricity, the wire is connected into the conductive pins 1. Just flattening the end of the conductive pins 1 can achieve quick power connection, which is fast and convenient to install and is suitable for large-scale popularization and use.

[0031] In this embodiment, connection holes corresponding to the conductive pins 1 are formed on the metal base plate 4.

[0032] In this embodiment, an upper tube body 2 and a lower tube body 5 are further included. The upper tube body 2 and the lower tube body 5 are respectively installed on the upper and lower sides of the metal base plate 4. The upper tube body 2 sleeves the ceramic insulating medium 3 inside, and epoxy resins are poured into both the upper tube body 2 and the lower tube body 5. A connection groove corresponding to the lower tube body 5 is formed at the bottom of the metal base plate 4. The settings of the upper tube body 2, the lower tube body 5, and the epoxy resins can protect the internal feedthrough capacitors and improve the service life of this application.

[0033] The working principle of the present utility model is as follows:

[0034] The electrode layers on the upper surface of the ceramic insulating medium 3 are partitioned left and right under the barrier of the groove. The two conductive pins 1 are respectively connected to the electrode layers on the left capacitance area or the right capacitance area under the connection of the flanges 6, forming two interconnected feedthrough capacitors. In this application, the two feedthrough capacitors share one ceramic insulating medium 3 and one metal base plate 4, greatly reducing the volume and being able to withstand high voltages, making it suitable for use in magnetrons.

[0035] The circuits, electronic components and modules involved are all prior arts and can be fully implemented by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to software and methods either.

[0036] The above are only embodiments of the present utility model and do not limit the patent scope of the present utility model accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in related technical fields, shall be equally included in the patent protection scope of the present utility model.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A magnetron-based feedthrough capacitor, characterized in that It includes a metal bottom plate, a ceramic insulating medium, and conductive pins; The ceramic insulating medium is fixedly installed on the metal bottom plate. A groove is formed on the surface of the ceramic insulating medium, and the groove divides the surface of the ceramic insulating medium into a left capacitor region and a right capacitor region. Electrode layers are provided on both the left capacitor region and the right capacitor region. Two through holes are also formed on the surface of the ceramic insulating medium, and the two through holes are symmetrically arranged left and right and are respectively located on the left and right sides of the groove; Flanges are fixedly connected to the surfaces of both the left capacitor region and the right capacitor region. The conductive pins are fixedly connected to the flanges and are located within the through holes without contacting the inner walls of the through holes.

2. The feedthrough capacitor based on a magnetron according to claim 1, characterized in that: The conductive pins are made of hollow copper tubes.

3. The feedthrough capacitor based on a magnetron according to claim 1, characterized in that: Connection holes corresponding to the conductive pins are formed on the metal bottom plate.

4. The feedthrough capacitor based on a magnetron according to claim 1, characterized in that: It further includes an upper tube body and a lower tube body. The upper tube body and the lower tube body are respectively installed on the upper and lower sides of the metal bottom plate. The upper tube body sleeves the ceramic insulating medium, and epoxy resin is poured into both the upper tube body and the lower tube body.

5. The feedthrough capacitor based on a magnetron according to claim 4, characterized in that: A connection groove corresponding to the lower tube body is formed at the bottom of the metal bottom plate.

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