CN203812839U - Cathode lead-out mounting structure of high-power vacuum tube - Google Patents

Abstract

This utility model discloses a cathode lead-out mounting structure for a high-power electron tube, including inner and outer cathode lead-out rings of the electron tube, and a pair of connecting blocks mounted on the inner and outer lead-out rings. The connecting blocks are right-angled blocks with a threaded hole in the center for connecting to an application device. The front end of the connecting block has a slot for engaging and welding to the inner and outer lead-out rings, and the rear end of the connecting block has a cross-shaped embedding groove, in which an embedding block is installed. The connecting block structure used in this utility model can be firmly welded to the inner and outer cathode lead-out rings, avoiding the problem of poor contact caused by loosening. Furthermore, the threaded hole and embedding block can meet the connection structures of different application devices.

Description

A high-power electron tube cathode lead-out installation structure

technical field

The utility model relates to a connection technology between a cathode of an electron tube and an application device, in particular to a lead-out installation structure of the cathode of a high-power electron tube.

Background technique

As shown in Figure 1, at present, the inner and outer lead-out rings (1, 2) of the cathode of the electron tube and the installation of the application equipment are generally connected by the inner and outer lead sleeves (3, 4), mainly by spot welding the wires in the lead sleeve on the outgoing ring.

However, the disadvantage of using lead-out wire sleeves to connect application equipment is that the connection structure is not strong enough and is easy to loose, resulting in poor contact. After long-term use, the cathode current of high-power electronic tubes is large and the power is high (generally the current is greater than 200A, and the power is higher than 2kW), the resistance of the contact part is large, so that the local temperature is too high to cause ignition, which burns the lead-out ring and the cathode of the electron tube.

In addition, the connection method of the lead-out sleeve is only suitable for the application equipment that uses wires to connect the cathode of the electronic tube, and when the application equipment uses screw connection, the connection cannot be realized, thereby reducing the application range of the electronic tube.

Utility model content

In order to solve the above-mentioned shortcomings of the prior art, the utility model proposes a high-power electronic tube cathode lead-out installation structure.

In order to solve the above technical problems, the utility model adopts the following technical solutions: a high-power electron tube cathode lead-out installation structure, including the cathode inner and outer lead-out rings of the electron tube, and a pair of connecting blocks installed on the inner and outer lead-out rings; The connecting block described above is in the shape of a right-angled block and has a threaded hole in the middle for connecting the application equipment. When the connection head of the application equipment uses screws, the screw can be directly passed through the threaded hole to realize the connection between the two.

The front end of the connection block has a slot that is snapped into and welded to the inner and outer lead-out rings. The rear end of the connection block is also provided with a "cross"-shaped embedding groove, and the embedding groove is along the length of the connection block. The direction is set, and an embedded block is installed in the groove, and the embedded block is provided with a threaded through hole, and the screw passes through the threaded through hole and is connected to the groove bottom of the embedded groove, and the connecting block is made of copper material . When the connection head of the application equipment adopts electric wires, the electric wires can be inserted into the embedding groove, and then the electric wires can be fastened on the connecting block by locking the embedding block with screws.

Compared with the prior art, the utility model adopts the connection block structure, the front end of which is directly snapped into the lead-out ring and welded, and the structure is very firm. Block, wherein the threaded hole can be connected to the application equipment using screw joints, and the embedded block can be connected to the application equipment using wire joints, which expands the scope of application, and is practical and easy to install. It is worth promoting.

Description of drawings

Fig. 1 is the structural representation of prior art;

Fig. 2 is the structural representation of the utility model;

Fig. 3 is a partially enlarged view of A-A of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

As shown in Figures 2 and 3, the high-power electron tube cathode lead-out installation structure proposed by the utility model includes the inner lead-out ring 1 and the outer lead-out ring 2 of the electron tube cathode, and a pair of connecting rings are installed on the inner lead-out ring 1 and the outer lead-out ring 2 Block 3; connection block 3 The connection block 3 is made of copper material and is in the shape of a right-angled block. The middle part of the connection block is provided with a threaded hole 31 for connecting the application equipment. The slot 32 of the lead-out ring 1 and the outer lead-out ring 2, the rear end of the connecting block 3 is also provided with a "ten"-shaped embedded groove 33, the embedded groove 33 is arranged along the length direction of the connecting block 3, and an embedded groove is installed in the groove. The block 4 is provided with a threaded through hole 41 inside the embedded block 4 , and the screw 5 passes through the threaded through hole 41 and is connected to the groove bottom of the embedded groove 33 .

In the utility model, in actual installation, there are different connection methods for different application equipment, wherein the threaded hole can realize butt joint application equipment using screw joints, when the application equipment is a wire connector, the wire connection of the application equipment can be connected Put it in the embedding groove 33, then turn the embedding block on, the embedding block 4 can slide on the chute of the embedding groove, and the groove bottom of the embedding groove also has a section of thread, so that when the screw 5 passes through the embedding block, it directly connects with the embedding groove The threads at the bottom of the groove are connected to clamp the wire connector of the application device in the embedded groove.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the utility model patent and protection scope should be based on the appended claims.

Claims (2)

1. A high-power electronic tube cathode lead-out installation structure, characterized in that it includes the inner and outer lead-out rings (1, 2) of the cathode of the electron tube, and a pair of connecting blocks installed on the inner and outer lead-out rings (1, 2) (3); the connecting block (3) is in the shape of a right-angled block and the middle part is provided with a threaded hole (31) for connecting the application equipment. Leading out the slots (32) of the rings (1, 2), the rear end of the connecting block (3) is also provided with a "cross"-shaped embedding groove (33), and the embedding groove (33) is along the connecting block ( 3) is set in the length direction, and an embedded block (4) is installed in the groove, and the embedded block (4) is provided with a threaded through hole (41), and the screw (5) passes through the threaded through hole (41) and Connect to the groove bottom of the embedded groove (33). 2. The high-power electron tube cathode lead-out installation structure according to claim 1, characterized in that, the connection block (3) is made of copper material.