CN217719490U

CN217719490U - Kovar core column grid-control X-ray tube

Info

Publication number: CN217719490U
Application number: CN202220803888.2U
Authority: CN
Inventors: 刘国强
Original assignee: Shanghai Keyway Electron Co ltd
Current assignee: Shanghai Keyway Electron Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-11-01
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a kovar stem grid-control X-ray tube, vacuum piece, rotatory anode spare and cathode spare, the vacuum piece includes the body, sets up in the anode sealing spare and the cathode sealing spare at body both ends respectively, rotatory anode spare part sets up in the inside of anode sealing spare, the cathode spare is including setting up in the inside radiating ring of cathode sealing spare, set up in the radiating ring inner wall and the part stretches into the inside heat-conducting piece of body, set up in the heat-absorbing piece that the heat-conducting piece stretches into body part outer wall and set up in heat-absorbing piece lateral wall installed part and set up in the focus piece of installed part lateral wall, the utility model discloses, can prevent the inside high temperature of body to the inside quick radiating purpose of body for power spare inner bearing can not be overheated, extension power spare inner bearing life.

Description

Kovar core column grid-control X-ray tube

Technical Field

The utility model relates to a X-ray tube technical field specifically is a Kovar stem grid control X-ray tube.

Background

The work principle of the grid-control X-ray tube is that the negative bias voltage is applied to the grid to control the X-ray tube to emit beam current, so that the purposes of modulating and turning off the X-ray are achieved, and the grid-control X-ray tube has the functions of a high-voltage switch and the X-ray tube.

In the use process of the grid-control X-ray tube, the anode rotates at a high speed, the internal bearing of the power equipment for controlling the rotation of the anode is easy to damage under the high-temperature condition, and the filament can release a large amount of heat, so that the internal temperature of the vacuum tube is quickly raised, and the internal bearing of the power equipment is damaged in an acceleration mode.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems that exist in the use of the prior kovar stem gated X-ray tube.

Therefore, the utility model aims at providing a kovar stem gate-controlled X-ray tube can prevent the inside high temperature of body to the inside quick radiating purpose of body for the inside bearing of power spare can not be overheated, prolongs the inside bearing life of power spare.

In order to solve the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a kovar stem gated X-ray tube, comprising:

the vacuum piece comprises a pipe body, and an anode sealing piece and a cathode sealing piece which are respectively arranged at two ends of the pipe body;

a rotating anode member partially disposed within the anode seal;

the cathode piece comprises a heat dissipation ring arranged inside the cathode sealing piece, a heat conduction piece arranged on the inner wall of the heat dissipation ring and partially extending into the tube body, a heat absorption piece arranged on the outer wall of the heat conduction piece extending into the tube body, and a focusing piece arranged on the side wall of the heat absorption piece and arranged on the side wall of the mounting piece.

As an optimal selection scheme of kovar stem grid-control X-ray tube, wherein, rotatory anode spare is including setting up in the inside power spare of anode seal spare, setting up in the connecting piece of power spare output and setting up in the positive pole target disc of connecting piece lateral wall.

As a kovar stem grid-control X-ray tube's an preferred scheme, wherein, the lateral wall of heat dissipation ring is provided with the heat conduction hole, the outer wall of heat conduction piece is provided with the connecting portion that stretch into the heat conduction hole inside.

As an optimized scheme of kovar stem grid-control X-ray tube, wherein, the outer wall of heat-conducting piece is provided with the sealed dish of being connected with the inside opening terminal surface of cathode seal spare.

As a kovar stem grid-control X-ray tube's an preferred scheme, wherein, the lateral wall of heat absorbing member is provided with the fastening portion of being connected with the installed part, the inside of heat conducting member is provided with the heat conduction passageway, the inside of heat absorbing member is provided with the storehouse of collecting heat with the heat conduction passageway intercommunication.

As a kovar stem grid-control X-ray tube's an preferred scheme, wherein, the lateral wall of heat absorbing member is provided with the heat hole of advancing with heat conduction channel intercommunication, the heat in collection storehouse passes through the leading-in heat conduction hole of connecting portion.

As a kovar stem grid-control X-ray tube's an preferred scheme, wherein, the lateral wall of installed part is provided with the fastening hole of being connected with fastening portion, the lateral wall of installed part be provided with advance hot hole intercommunication heat dissipation hole.

As a kovar stem grid-control X-ray tube's an preferred scheme, wherein, the lateral wall of installed part is provided with thermal-insulated circle, thermal-insulated inside of enclosing be provided with the heat absorbing sheet of focusing a lateral wall laminating.

As a kovar stem grid-control X-ray tube an preferred scheme, wherein, the lateral wall of focusing part is provided with the spread groove, the inside of thermal-insulated circle part embedding spread groove.

As a kovar stem grid-control X-ray tube's an preferred scheme, wherein, the lateral wall of focusing piece is provided with the focus groove, the inside of focus groove is provided with the filament.

Compared with the prior art, the utility model discloses the beneficial effect who has is: this kind of kovar stem gate-controlled X-ray tube, the heat that the filament produced in the use, conduct to the heat-absorbing fin through focus spare, the heat-absorbing fin passes through the heat extraction hole heat extraction, the heat gets into the heat conduction passageway through advancing the heat hole, get into the storehouse of collecting heat through the heat conduction passageway, connecting portion and storehouse intercommunication of collecting heat, the heat is discharged through the heat conduction hole from connecting portion, consequently, reach the quick radiating purpose of the internal portion of tube, prevent the inside high temperature of body, make the internal bearing of power spare can not be overheated, extension power spare internal bearing life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic structural view of a kovar stem grid-controlled X-ray tube of the present invention;

FIG. 2 is an exploded view of a Kovar stem grid-controlled X-ray tube according to the present invention;

FIG. 3 is a schematic structural diagram of a cut-away portion of a Kovar stem grid-controlled X-ray tube according to the present invention;

fig. 4 is a schematic view of a partial structure of a heat conducting member of a kovar stem grid-controlled X-ray tube of the present invention.

100. A vacuum member; 110. a pipe body; 120. an anode seal member; 130. a cathode seal; 200. rotating the anode member; 210. a connecting member; 220. a power member; 230. an anode target disk; 300. a cathode member; 310. a heat dissipating ring; 311. a heat conduction hole; 320. a heat conductive member; 321. sealing the disc; 322. a connecting portion; 3221. a heat collection bin; 3222. a heat conducting channel; 330. a heat absorbing member; 331. a heat inlet hole; 332. a fastening section; 340. a mounting member; 341. a heat insulation ring; 3411. heat removal holes; 3412. a fastening hole; 342. a heat absorbing sheet; 350. a focusing member; 351. a focus tank; 352. a filament; 353. and connecting the grooves.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Next, the present invention will be described in detail with reference to the schematic drawings, and in order to describe the embodiments of the present invention in detail, the sectional views showing the device structure will not be enlarged partially according to the general scale for convenience of description, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a Kovar stem grid-control X-ray tube can prevent the inside high temperature of body to the quick radiating purpose in the body for the inside bearing of power part can not be overheated, prolongs the inside bearing life of power part.

Fig. 1 to 4 are schematic structural diagrams of an embodiment of a kovar stem grid-control X-ray tube according to the present invention, please refer to fig. 1 to 4, and a main body of the kovar stem grid-control X-ray tube includes a vacuum component 100, a rotating anode component 200, and a cathode component 300.

The vacuum member 100 is used for providing a stable discharge environment for the anode sealing member 120 and the cathode sealing member 130, and specifically, the vacuum member 100 includes a tube body 110, and the anode sealing member 120 and the cathode sealing member 130 respectively disposed at two ends of the tube body 110;

the rotary anode member 200 is used for receiving the electron beam emitted from the cathode member 300, and specifically, the rotary anode member 200 is partially disposed inside the anode seal 120, in this embodiment, the rotary anode member 200 includes a power member 220 disposed inside the anode seal 120, a connecting member 210 disposed at an output end of the power member 220, and an anode target disk 230 disposed on a side wall of the connecting member 210;

the cathode member 300 is used for emitting electron beams to the anode target plate 230, and has a high heat dissipation property, and specifically, the cathode member 300 includes a heat dissipation ring 310 disposed inside the cathode sealing member 130, a heat conduction member 320 disposed on the inner wall of the heat dissipation ring 310 and partially extending into the tube 110, a heat absorption member 330 disposed on the outer wall of the heat conduction member 320 extending into the tube 110, a mounting member 340 disposed on the side wall of the heat absorption member 330, and a focusing member 350 disposed on the side wall of the mounting member 340, in this embodiment, the side wall of the heat dissipation ring 310 is provided with a heat conduction hole 311, the outer wall of the heat conduction member 320 is provided with a connection portion 322 extending into the heat conduction hole 311, the outer wall of the heat conduction member 320 is provided with a sealing plate 321 connected to the open end face inside the cathode sealing member 130, and the side wall of the heat absorption member 330 is provided with a fastening portion 332 connected to the mounting member 340, a heat conduction channel 3222 is disposed inside the heat conduction member 320, a heat collection chamber 3221 communicated with the heat conduction channel 3222 is disposed inside the heat absorption member 330, a heat inlet 331 communicated with the heat conduction channel 3222 is disposed on a side wall of the heat absorption member 330, heat in the heat collection chamber 3221 is introduced into the heat conduction hole 311 through a connection portion 322, a fastening hole 3412 connected with the fastening portion 332 is disposed on a side wall of the mounting member 340, a heat outlet 3411 communicated with the heat inlet 331 is disposed on a side wall of the mounting member 340, a heat insulation ring 341 is disposed on a side wall of the mounting member 340, a heat absorption sheet 342 attached to a side wall of the focusing member 350 is disposed inside the heat insulation ring 341, a connection groove 353 is disposed on a side wall of the focusing member 350, a part of the heat insulation ring 341 is embedded inside the connection groove 353, a focusing groove 351 is disposed on a side wall of the focusing member 350, and a filament 352 is disposed inside the focusing groove 351.

With reference to fig. 1-4, in the kovar stem grid-controlled X-ray tube of this embodiment, in the using process, heat generated by the filament 352 is conducted to the heat absorbing sheet 342 through the focusing element 350, the heat absorbing sheet 342 exhausts heat through the heat exhausting hole 3411, the heat enters the heat conducting channel 3222 through the heat inlet 331, enters the heat collecting chamber 3221 through the heat conducting channel 3222, the connecting portion 322 is communicated with the heat collecting chamber 3221, and the heat is exhausted from the connecting portion 322 through the heat conducting hole 311, so that the purpose of rapidly dissipating heat inside the tube body 110 is achieved, the internal temperature of the tube body 110 is prevented from being too high, the internal bearing of the power element 220 is prevented from being overheated, and the service life of the internal bearing of the power element 220 is prolonged.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of these combinations not exhaustive in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A Kovar stem gated X-ray tube, comprising:

the vacuum piece (100), the vacuum piece (100) comprises a tube body (110), an anode sealing piece (120) and a cathode sealing piece (130) which are respectively arranged at two ends of the tube body (110);

a rotating anode member (200), the rotating anode member (200) being partially disposed inside an anode seal (120);

the cathode piece (300) comprises a heat dissipation ring (310) arranged inside the cathode sealing piece (130), a heat conduction piece (320) arranged on the inner wall of the heat dissipation ring (310) and partially extending into the tube body (110), a heat absorption piece (330) arranged on the outer wall of the part, extending into the tube body (110), of the heat conduction piece (320), a focusing piece (350) arranged on the side wall of the heat absorption piece (330), an installation piece (340) and an installation piece (340).

2. Kovar stem gated X-ray tube according to claim 1, wherein the rotating anode member (200) comprises a power member (220) arranged inside the anode seal (120), a connection member (210) arranged at the output end of the power member (220) and an anode target disk (230) arranged at the side wall of the connection member (210).

3. The Kovar stem grid-controlled X-ray tube according to claim 2, wherein the side wall of the heat dissipation ring (310) is provided with a heat conduction hole (311), and the outer wall of the heat conduction member (320) is provided with a connection part (322) extending into the heat conduction hole (311).

4. A kovar stem gated X-ray tube according to claim 3, wherein the outer wall of the heat conducting member (320) is provided with a sealing disc (321) which is connected to the inner open end face of the cathode seal (130).

5. Kovar stem grid controlled X-ray tube according to claim 4, wherein the side wall of the heat absorbing member (330) is provided with a fastening portion (332) connected with the mounting member (340), the inside of the heat conducting member (320) is provided with heat conducting channels (3222), and the inside of the heat absorbing member (330) is provided with heat collecting chambers (3221) communicating with the heat conducting channels (3222).

6. Kovar stem grid-controlled X-ray tube according to claim 5, wherein the side wall of the heat absorbing member (330) is provided with heat inlet holes (331) communicating with the heat conducting channels (3222), and the heat of the heat collecting chamber (3221) is conducted into the heat conducting holes (311) through the connecting portion (322).

7. Kovar stem grid-controlled X-ray tube according to claim 6, wherein the side wall of the mounting part (340) is provided with fastening holes (3412) connected with the fastening parts (332), and the side wall of the mounting part (340) is provided with heat exhausting holes (3411) communicating with the heat inlet hole (331).

8. The Kovar stem grid-controlled X-ray tube according to claim 7, wherein the side wall of the mounting member (340) is provided with a heat insulating ring (341), and the heat absorbing sheet (342) attached to the side wall of the focusing member (350) is arranged inside the heat insulating ring (341).

9. The Kovar stem gated X-ray tube according to claim 8, wherein the side wall of the focusing element (350) is provided with coupling slots (353), and the thermal insulating collar (341) is partially embedded inside the coupling slots (353).

10. The Kovar stem gated X-ray tube according to claim 9, wherein the sidewall of the focusing member (350) is provided with a focusing groove (351), and the inside of the focusing groove (351) is provided with a filament (352).