An electrode connection structure

Abstract

This utility model discloses an electrode connection structure, relating to the field of circuit technology, including an inner electrode, an outer electrode, and a transition electrode. The inner and outer electrodes are detachably inserted into both ends of the transition electrode and are interference-fitted with the transition electrode. The transition electrode includes a conductor, with an insulating bushing on the outer periphery of the conductor, the insulating bushing being coaxial with the conductor; a through hole is provided along the axial direction of the conductor, and the inner and outer electrodes are respectively inserted into both ends of the through hole and in contact with the conductor. This utility model solves the technical problems in the prior art, such as unreliable connection between two electrodes, high risk of open circuit; easy open circuit caused by contact between flexible wires and metal end caps of vacuum electronic devices; and inconvenient assembly operation, providing a connection structure that is easy to operate and has no risk of open circuit or short circuit.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to an electrode connection structure. Background Technology

[0002] Currently, in many applications, it is necessary to connect two electrodes with wires or by welding, which leads to problems such as inconvenient electrode connection operations and easy open circuits. Especially in the connection of high-voltage working components inside vacuum devices, the existing technology usually uses a flexible wire to connect the inner electrode and the outer electrode. The inner electrode is connected to the internal high-voltage working component, and the outer electrode is connected to the high-voltage power supply output terminal. The two ends of the flexible wire are usually connected to the inner and outer electrodes by spot welding. This high-voltage connection method has the following technical problems: (1) the connection at both ends of the flexible wire is unreliable and the risk of open circuit is high; (2) there is a risk that the flexible wire may come into contact with the metal end cap of the vacuum device, resulting in a short circuit between the high-voltage working component and the end cap; (3) the assembly operation is inconvenient, etc. Utility Model Content

[0003] The purpose of this invention is to solve the technical problems in the prior art, such as unreliable connection between the two electrodes, high risk of open circuit, easy contact between the flexible wire and the metal end cap of the vacuum device causing short circuit, and inconvenient assembly operation. It provides a connection structure that is easy to operate and has no risk of open circuit or short circuit, specifically including the following technical solutions:

[0004] An electrode connection structure includes an inner electrode, an outer electrode, and a transition electrode. The inner electrode and the outer electrode are detachably inserted into the two ends of the transition electrode and are interference-fitted with the transition electrode.

[0005] The beneficial effects of the above scheme are: the adapter electrode is used to connect the inner electrode and the outer electrode, and the adapter electrode is plugged into the inner electrode and the outer electrode. Through the plugging, the technical effect of easy disassembly and connection with the inner electrode and the outer electrode is achieved. Moreover, through the interference fit with the adapter electrode, the inner electrode and the outer electrode are connected, while avoiding short circuits and open circuits. This design is also easy to operate.

[0006] The adapter electrode includes a conductor, an insulating bushing is provided on the outer periphery of the conductor, and the insulating bushing is coaxial with the conductor; a through hole is provided along the axial direction of the conductor, and the inner electrode and the outer electrode are respectively inserted into the two ends of the through hole and in contact with the conductor.

[0007] The beneficial effects of the above scheme are: the insulating bushing has an insulating function, which can prevent short circuits; at the same time, since both the inner and outer electrodes are inserted into the through hole and come into contact with the conductor, the inner and outer electrodes are made conductive.

[0008] Preferably, both ends of the conductor are rounded. This rounded corner design facilitates the insertion of the inner and outer electrodes into the through hole.

[0009] Preferably, the insulating bushing and the conductor are connected by brazing or interference fit.

[0010] Preferably, the insulating bushing material is any one of alumina ceramic, zirconia ceramic, polyimide, and polyetheretherketone.

[0011] Preferably, the conductor material is any one of oxygen-free copper and copper-containing alloys.

[0012] An electrode connection structure further includes an end cap and an insulating shell, wherein the end cap is fixedly connected to the insulating shell, an outer electrode is fixedly mounted on the end cap, an inner electrode is fixedly mounted inside the insulating shell, and a transfer electrode is fixedly mounted on the top of the insulating shell. The inner electrode and the outer electrode are detachably connected via the transfer electrode. Preferably, the end cap and the insulating shell are welded to form a vacuum-sealed space.

[0013] The upper part of the insulating shell is provided with a support plate, which is fixedly connected to the insulating shell. The adapter electrode passes through the support plate and is fixedly mounted on the support plate.

[0014] The electrode connection structure is further provided with a positioning component, one end of which is connected to the end cap and the other end of which is connected to the insulating shell.

[0015] The insulating outer shell and the end cap are connected by a positioning assembly. The positioning assembly facilitates calibration and alignment when the inner and outer electrodes are inserted into the adapter electrode.

[0016] The positioning component includes an insert plate and a U-shaped groove. One end of the U-shaped groove is fixedly connected to a support plate, and one end of the insert plate is fixedly connected to the end cap. When the insulating shell is connected to the end cap, the insert plate is inserted into the channel of the U-shaped groove and fits into the U-shaped groove. The combination design of the insert plate and the U-shaped groove is simple in structure and easy to operate.

[0017] The positioning assembly includes a positioning plate and a positioning groove. One end of the positioning plate is fixedly connected to the support plate. The positioning groove is formed on the top of the end cap. When the insulating shell is connected to the end cap, the positioning plate is inserted into the positioning groove and fits into it. A recessed groove is provided at the top of the end of the insulating shell that contacts the end cap, and a protrusion is provided at one end of the end cap. The recessed groove fits into the protrusion. The design, utilizing the positioning groove on the top of the end cap in conjunction with the positioning plate, makes operation more convenient and positioning easier.

[0018] The insulating shell has a high-voltage working component inside, which is connected to one end of the inner electrode.

[0019] This utility model has the following advantages:

[0020] (1) This utility model achieves reliable and fast connection between the inner electrode and the outer electrode by designing the adapter electrode. The outer edge of the adapter electrode is provided with an insulating bushing, which avoids the risk of short circuit caused by the use of soft wires for connection in the prior art, which is easy to contact the end cap, and the risk of open circuit caused by the soft wires being disconnected from the inner electrode or the outer electrode.

[0021] (2) The adapter electrode has a simple structure and is easy to operate. The whole scheme is simple and easy to implement.

[0022] (3) Through the design of the limiting structure, the inner electrode and the outer electrode are more convenient and faster to be positioned when inserted into the adapter electrode. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a top view of the adapter electrode structure.

[0025] Figure 3 This is a cross-sectional view of the adapter electrode;

[0026] Figure 4 This is a schematic diagram of the positioning component structure in Example 1;

[0027] Figure 5 This is a schematic diagram of the positioning component structure in Example 2;

[0028] Figure 6 This is a magnified view of point B.

[0029] In the figure: 1. Inner electrode, 2. Outer electrode, 3. Adapter electrode, 31. Conductor, 32. Insulating bushing, 33. Through hole, 4. End cap, 5. Insulating shell, 6. Support plate, 7. Positioning assembly, 71. Insert plate, 72. U-shaped groove, 73. Positioning plate, 74. Positioning groove, 8. Recessed groove, 9. Protrusion. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] See Figure 1 , 2 3 and Figure 6 An electrode connection structure includes an inner electrode 1, an outer electrode 2, and a connecting electrode 3. The inner electrode 1 and the outer electrode 2 are detachably inserted into both ends of the connecting electrode 3 and are interference-fitted with the connecting electrode 3. The connecting electrode 3 is used to connect the inner electrode 1 and the outer electrode 2, and the connecting electrode 3 is inserted into the inner electrode 1 and the outer electrode 2, achieving the technical effect of convenient disassembly and connection with the inner electrode 1 and the outer electrode 2. At the same time, through the interference fit with the connecting electrode 3, the inner electrode 1 and the outer electrode 2 are connected, effectively avoiding short circuits and open circuits. This design is also easy to operate.

[0036] The adapter electrode 3 includes a conductor 31, with an insulating sleeve 32 on its outer periphery. The insulating sleeve 32 is coaxial with the conductor 31. A through hole 33 is provided along the axial direction of the conductor 31. The inner electrode 1 and the outer electrode 2 are respectively inserted into the two ends of the through hole 33 and contact the conductor 31. The insulating sleeve 32 has an insulating function, which can prevent short circuits. At the same time, since both the inner electrode 1 and the outer electrode 2 enter and exit the through hole 33 and then contact the conductor 31, conductivity is achieved between the inner electrode 1 and the outer electrode 2.

[0037] Preferably, both ends of the conductor 31 are rounded. This rounded corner design facilitates the insertion of the inner electrode 1 and the outer electrode 2 into the through hole 33.

[0038] Preferably, the insulating bushing 32 and the conductor 31 are connected by brazing or interference fit.

[0039] Preferably, the insulating bushing 32 is made of any one of alumina ceramic, zirconia ceramic, polyimide, or polyetheretherketone.

[0040] Preferably, the conductor 31 is made of either oxygen-free copper or a copper-containing alloy.

[0041] An electrode connection structure further includes an end cap 4 and an insulating shell 5. The end cap 4 and the insulating shell 5 are inserted together. An outer electrode 2 is fixedly mounted on the end cap 4, an inner electrode 1 is fixedly mounted inside the insulating shell 5, and a transition electrode 3 is fixedly mounted on the top of the insulating shell, with its two ends located inside and outside the cavity of the insulating shell, respectively. The inner electrode 1 and the outer electrode 2 are detachably connected via the transition electrode 3. The end cap 4 is generally a metal end cap, and the insulating shell 5 is generally cylindrical in design, with the end cap 4 fitting to the insulating shell 5.

[0042] The upper part of the insulating shell 5 is provided with a support plate 6, which is fixedly connected to the insulating shell 5. The adapter electrode 3 passes through the support plate 6 and is fixedly mounted on the support plate 6. The insulating shell 5 and the end cap 4 are connected by a positioning component 7. Considering the small size of the adapter electrode 3 and the small size of the through hole 33, it is inconvenient to align the outer electrode 2 with the through hole 33 during operation. Therefore, the positioning component 7 was added. The function of the positioning component 7 is to facilitate calibration and alignment when the inner electrode 1 and the outer electrode 2 are inserted into the adapter electrode 3. Depending on the application, the support plate 6 can be detachably connected to the insulating shell 5 or fixedly connected to the insulating shell 5.

[0043] A recessed groove 8 is provided at the top of the end of the insulating shell 5 that contacts the end cap 4, and a protrusion 9 is provided at one end of the end cap 4. The recessed groove 8 and the protrusion 9 are adapted to each other. The adaptation of the recessed groove 8 and the protrusion 9 serves a certain alignment function.

[0044] The insulating shell 5 is equipped with a high-voltage working component inside, which is connected to one end of the inner electrode 1.

[0045] Example 1, see Figure 4 The positioning component 7 includes an insert plate 71 and a U-shaped groove 72. One end of the U-shaped groove 72 is fixedly connected to the support plate 6, and one end of the insert plate 71 is fixedly connected to the end cap 4. When the insulating shell 5 is connected to the end cap 4, the insert plate 71 is inserted into the groove of the U-shaped groove 72 and is adapted to the U-shaped groove 72. The combination design of the insert plate 71 and the U-shaped groove 72 is simple in structure and convenient in operation.

[0046] Example 2, see Figure 5 The positioning component 7 includes a positioning plate 73 and a positioning groove 74. One end of the positioning plate 73 is fixedly connected to the support plate 6. The positioning groove 74 is formed on the top of the end cover 4. When the insulating shell 5 is connected to the end cover 4, the positioning plate 73 is inserted into the positioning groove 74 and is adapted to the positioning groove 74. A recessed groove 8 is provided on the top of the end of the insulating shell 5 that contacts the end cover 4, and a protrusion 9 is provided on one end of the end cover 4. The recessed groove 8 is adapted to the protrusion 9. The design of using the positioning groove 74 formed on the top of the end cover 4 in combination with the positioning plate 73 makes operation more convenient and positioning more easy.

[0047] The working principle of this utility model is as follows: A support plate 6 is placed on top of the insulating shell 5. Since a transfer electrode 3 is fixedly connected to the support plate 6, passing through it, one end of the inner electrode 1 is inserted into the transfer electrode 3, and the other end is connected to the high-voltage working component. The end cap 4 is aligned with the insulating shell 5 and positioned using the positioning assembly 7. Since the outer electrode 2 is mounted on the end cap 4, one end of the outer electrode 2 can be inserted into the transfer electrode 3. The insertion plate 71 is inserted into the slot fixedly connected to the support plate 6, positioning the outer electrode 2 on the end cap 4 into the transfer electrode 3. Because the transfer electrode 3 contains a conductor 31, which simultaneously contacts both the outer electrode 2 and the inner electrode 1 through the insertion hole 33, the conductor 31 connects the inner electrode 1 and the outer electrode 2, thus enabling communication between them.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electrode connection structure, characterized in that, It includes an inner electrode (1), an outer electrode (2) and a transfer electrode (3). The inner electrode (1) and the outer electrode (2) are detachably inserted into the two ends of the transfer electrode (3) and are interference-fitted with the transfer electrode (3).

2. The electrode connection structure as described in claim 1, characterized in that, The adapter electrode (3) includes a conductor (31), and an insulating bushing (32) is provided on the outer periphery of the conductor (31). The insulating bushing (32) is coaxial with the conductor (31). A through hole (33) is provided along the axial direction of the conductor (31). The inner electrode (1) and the outer electrode (2) are respectively inserted into the two ends of the through hole (33) and contact the conductor (31).

3. The electrode connection structure as described in claim 2, characterized in that, The conductor (31) has rounded corners at both ends.

4. The electrode connection structure as described in claim 2, characterized in that, The insulating bushing (32) and the conductor (31) are connected by brazing or interference fit; The insulating bushing (32) is made of any one of alumina ceramic, zirconium oxide ceramic, polyimide, or polyetheretherketone. The conductor (31) material is either oxygen-free copper or copper-containing alloy.

5. The electrode connection structure as described in claim 1, characterized in that, It also includes an end cap (4) and an insulating shell (5), the end cap (4) and the insulating shell (5) are inserted together, the outer electrode (2) is fixedly installed on the end cap (4), the inner electrode (1) is fixedly installed inside the insulating shell (5), and the inner electrode (1) and the outer electrode (2) are detachably connected through the adapter electrode (3).

6. The electrode connection structure as described in claim 5, characterized in that, The upper part of the insulating shell (5) is provided with a support plate (6), the support plate (6) is fixedly connected to the insulating shell (5), and the adapter electrode (3) passes through the support plate (6) and is fixedly installed on the support plate (6).

7. The electrode connection structure as described in claim 6, characterized in that, It also includes a positioning component (7), one end of which is connected to the end cap (4) and the other end of which is connected to the insulating shell (5).

8. The electrode connection structure as described in claim 7, characterized in that, The positioning component (7) includes a insert plate (71) and a U-shaped groove (72). One end of the U-shaped groove (72) is fixedly connected to the support plate (6), and one end of the insert plate (71) is fixedly connected to the end cap (4). When the insulating shell (5) is connected to the end cap (4), the insert plate (71) is inserted into the channel of the U-shaped groove (72) and is adapted to the U-shaped groove (72).

9. The electrode connection structure as described in claim 7, characterized in that, The positioning component (7) includes a positioning plate (73) and a positioning groove (74). One end of the positioning plate (73) is fixedly connected to the support plate (6). The positioning groove (74) is opened on the top of the end cover (4). When the insulating shell (5) is connected to the end cover (4), the positioning plate (73) is inserted into the positioning groove (74) and is adapted to the positioning groove (74).

10. The electrode connection structure as described in claim 5, characterized in that, A recessed groove (8) is provided at the top of the end of the insulating shell (5) that contacts the end cap (4), and a protrusion (9) is provided at one end of the end cap (4). The recessed groove (8) and the protrusion (9) are adapted to each other.

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