CN209434144U - A kind of electron gun shortening length - Google Patents
A kind of electron gun shortening length Download PDFInfo
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- CN209434144U CN209434144U CN201921054682.9U CN201921054682U CN209434144U CN 209434144 U CN209434144 U CN 209434144U CN 201921054682 U CN201921054682 U CN 201921054682U CN 209434144 U CN209434144 U CN 209434144U
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- electron gun
- insulation porcelain
- porcelain cylinder
- cathode
- inner cavity
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Abstract
The utility model discloses the electron guns that one kind can shorten length, belong to electron gun field, including insulation porcelain cylinder, anode is fixedly connected at the top of the insulation porcelain cylinder, the bottom of the insulation porcelain cylinder is fixedly connected with cathode, and the inner cavity of insulation porcelain cylinder is through at the top of the cathode, and the inner cavity of the cathode is fixedly connected with heated filament, the inner cavity of the heated filament is provided with insulating ceramics, and the bottom argon arc welding of the anode is connected to sealing shroud.This programme has reached the advantages of can shortening electron gun length, since the dielectric strength in vacuum is much larger than the dielectric strength in air, quasi- structure of applying for a patent is using different-diameter radial direction seal configuration, shorten the length of electron gun, the leakproofness of electron gun can effectively be increased, miniaturization simultaneously for the accelerators such as X-band, C-band, S-band, klystron, travelling-wave tubes etc. electron tube creates advantage, to improve the practicability of axial electron gun.
Description
Technical field
The utility model relates to electron gun fields, can shorten the electron gun of length more specifically to one kind.
Background technique
Electron gun be generate, accelerate and assemble high-energy density electronic beam current device, it launch with certain energy,
The electron beam of certain line and speed and angle, also known as electronics are infused, and the application of electron gun has inelastic electron scattering and fluorescence
Shield luminous etc., form that there are many structures of electron gun, according to lance body structure difference, being divided into axial electron gun, (straight adds certainly
Fast electron gun), ring-type electron gun (electrostatic field deflection electron gun).
Article needs to use axial electron gun when being scanned, axial electron gun existing at present, insulation porcelain cylinder and absolutely
Edge ceramics are used with diameter end connecting shaft to mode is connect, and are led to axial electron gun when in use, are needed fixed length, reduce
The leakproofness of axial electron gun, while to the accelerators such as X-band, C-band, S-band, klystron, travelling-wave tubes etc. electrovacuum device
The miniaturization of part brings unfavorable conditions, to reduce the practicability of axial electron gun.
Utility model content
Aiming at the problems existing in the prior art, the purpose of this utility model is to provide the electronics that one kind can shorten length
Rifle has the advantages of can shortening electron gun length, solves existing axial electron gun, insulation porcelain cylinder and insulating ceramics are using same
Diameter end connecting shaft leads to axial electron gun when in use to mode is connect, and needs fixed length, reduces axial electron gun
Leakproofness, while to the miniaturization band of the accelerators such as X-band, C-band, S-band, klystron, travelling-wave tubes etc. electron tube
The problem of having carried out unfavorable conditions.
To solve the above problems, the utility model adopts the following technical scheme.
A kind of electron gun shortening length, including insulation porcelain cylinder are fixedly connected with anode at the top of the insulation porcelain cylinder,
The bottom of the insulation porcelain cylinder is fixedly connected with cathode, and the inner cavity of insulation porcelain cylinder, the cathode are through at the top of the cathode
Inner cavity be fixedly connected with heated filament, the inner cavity of the heated filament is provided with insulating ceramics.
Preferably, the bottom argon arc welding of the anode is connected to sealing shroud, and the inner wall of sealing shroud and insulation porcelain cylinder surface
Top argon arc welding.
Preferably, the top argon arc welding of the cathode is connected to sealing shroud, and the inner wall of sealing shroud and insulation porcelain cylinder surface
Bottom argon arc welding.
Preferably, it is fixedly connected at the top of the top of the insulating ceramics and heated filament inner cavity, the bottom of the insulating ceramics
It is fixedly connected with the bottom of heated filament inner cavity, the surface of the insulating ceramics is fixedly connected with the inner cavity of heated filament.
Preferably, the two sides of the cathode top offer clamping groove, and the diameter of clamping groove inner cavity is identical, the yin
The two sides of pole bottom offer clamping groove, and the diameter of clamping groove inner cavity is identical.
Preferably, the top argon arc welding of the cathode is connected to positioning step, and in the surface of positioning step and insulation porcelain cylinder
The bottom argon arc welding of wall.
Preferably, the bottom argon arc welding of the anode is connected to positioning step, and in the surface of positioning step and insulation porcelain cylinder
The top argon arc welding of wall.
Preferably, the surface of the insulation porcelain cylinder is fixedly connected with ceramic step, and ceramic step is isodistantly spaced and is fixed on
The surface of insulation porcelain cylinder.
Compared with the prior art, utility model has the advantages that
(1) this programme has reached the advantages of can shortening electron gun length, since the dielectric strength in vacuum is much larger than air
In dielectric strength, quasi- structure of applying for a patent shortens the length of electron gun using different-diameter radial direction seal configuration, can be effective
Increase electron gun leakproofness, it is true simultaneously for the accelerators such as X-band, C-band, S-band, klystron, travelling-wave tubes etc. electricity
The miniaturization of pocket part creates advantage, to improve the practicability of axial electron gun.
(2) by the sealing shroud and positioning step of setting anode bottom, sealing is played between anode and insulation porcelain cylinder
Effect, can effectively increase the vacuum leakproofness of insulation porcelain tube inner chamber, by sealing shroud and positioning table that cathode top is arranged
Rank plays the role of sealing between anode and insulation porcelain cylinder, can effectively increase the vacuum leakproofness of insulation porcelain tube inner chamber,
By the way that the clamping groove of cathode top and bottom is arranged, cathode and other component is facilitated to carry out clamping installation, by the way that insulation porcelain is arranged
The ceramic step on cylinder surface plays the role of increasing insulation porcelain cylinder insulation performance, can be effective right by the way that insulating ceramics is arranged
It insulate among heated filament, prevents heated filament from the problem of short circuit occur.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Figure label explanation:
1, insulation porcelain cylinder；2, anode；3, cathode；4, heated filament；5, insulating ceramics.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe；Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " top/bottom end " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used for description mesh
, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " being provided with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, can also be with
It is to be detachably connected, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be with
Indirectly connected through an intermediary, it can be the connection inside two elements.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition.
Referring to Fig. 1, a kind of electron gun that can shorten length, including insulation porcelain cylinder 1, the top of insulation porcelain cylinder 1 is fixed to be connected
It is connected to anode 2, the bottom of insulation porcelain cylinder 1 is fixedly connected with cathode 3, and the top of cathode 3 is through to the inner cavity of insulation porcelain cylinder 1, yin
The inner cavity of pole 3 is fixedly connected with heated filament 4, and the inner cavity of heated filament 4 is provided with insulating ceramics 5, and this programme, which has reached, can shorten electron gun
The advantages of length, since the dielectric strength in vacuum is much larger than the dielectric strength in air, quasi- structure of applying for a patent is using different
Diameter radial direction seal configuration, shortens the length of electron gun, can effectively increase the leakproofness of electron gun, simultaneously for X-band,
The miniaturization of the accelerators such as C-band, S-band, klystron, travelling-wave tubes etc. electron tube creates advantage, to mention
The high practicability of axial electron gun.
Further, the bottom argon arc welding of anode 2 is connected to sealing shroud, and the inner wall of sealing shroud and 1 surface of insulation porcelain cylinder
Top argon arc welding, it is close to being played between anode 2 and insulation porcelain cylinder 1 by the way that the sealing shroud and positioning step of 2 bottom of anode is arranged
The effect of envelope can effectively increase the vacuum leakproofness of 1 inner cavity of insulation porcelain cylinder.
Further, the top argon arc welding of cathode 3 is connected to sealing shroud, and the inner wall of sealing shroud and 1 surface of insulation porcelain cylinder
Bottom argon arc welding, it is close to being played between anode 2 and insulation porcelain cylinder 1 by the sealing shroud and positioning step at 3 top of setting cathode
The effect of envelope can effectively increase the vacuum leakproofness of 1 inner cavity of insulation porcelain cylinder.
Further, it is fixedly connected at the top of the top of insulating ceramics 5 and 4 inner cavity of heated filament, the bottom of insulating ceramics 5 and heat
The bottom of 4 inner cavities of silk is fixedly connected, and the surface of insulating ceramics 5 is fixedly connected with the inner cavity of heated filament 4, by the way that insulating ceramics 5 is arranged,
It can prevent heated filament 4 from the problem of short circuit occur effectively to insulating among heated filament 4.
Further, the two sides at 3 top of cathode offer clamping groove, and the diameter of clamping groove inner cavity is identical, 3 bottom of cathode
The two sides in portion offer clamping groove, and the diameter of clamping groove inner cavity is identical, pass through the clamping of 3 top and bottom of setting cathode
Slot facilitates cathode 3 and other component to carry out clamping installation.
Further, the top argon arc welding of cathode 3 is connected to positioning step, and in the surface of positioning step and insulation porcelain cylinder 1
The bottom argon arc welding of wall is risen by the sealing shroud and positioning step at 3 top of setting cathode between anode 2 and insulation porcelain cylinder 1
To the effect of sealing, it can effectively increase the vacuum leakproofness of 1 inner cavity of insulation porcelain cylinder.
Further, the bottom argon arc welding of anode 2 is connected to positioning step, and in the surface of positioning step and insulation porcelain cylinder 1
The top argon arc welding of wall is risen by the way that the sealing shroud and positioning step of 2 bottom of anode is arranged between anode 2 and insulation porcelain cylinder 1
To the effect of sealing, it can effectively increase the vacuum leakproofness of 1 inner cavity of insulation porcelain cylinder.
Further, the surface of insulation porcelain cylinder 1 is fixedly connected with ceramic step, and ceramic step is isodistantly spaced and is fixed on absolutely
The work for increasing by 1 insulation performance of insulation porcelain cylinder is played by the way that the ceramic step on 1 surface of insulation porcelain cylinder is arranged in the surface of edge porcelain cylinder 1
With.
Working principle: sealing shroud and positioning step by the way that 2 bottom of anode is arranged rise between anode 2 and insulation porcelain cylinder 1
It to the effect of sealing, can effectively increase the vacuum leakproofness of 1 inner cavity of insulation porcelain cylinder, pass through the sealing at 3 top of setting cathode
Set and positioning step, play the role of sealing between anode 2 and insulation porcelain cylinder 1, can effectively increase by 1 inner cavity of insulation porcelain cylinder
Vacuum leakproofness facilitate cathode 3 and other component to carry out clamping installation by the clamping groove of setting cathode 3 top and bottom,
By the way that the ceramic step on 1 surface of insulation porcelain cylinder is arranged, plays the role of increasing by 1 insulation performance of insulation porcelain cylinder, be insulated by setting
Ceramics 5 can prevent heated filament 4 from the problem of short circuit occur, electronics can be shortened by having reached effectively to insulating among heated filament 4
The advantages of rifle length, since the dielectric strength in vacuum is much larger than the dielectric strength in air, quasi- structure of applying for a patent is not using
With diameter radial direction seal configuration, shorten the length of electron gun, can effectively increase the leakproofness of electron gun, simultaneously for X wave
The miniaturization of the accelerators such as section, C-band, S-band, klystron, travelling-wave tubes etc. electron tube creates advantage, thus
Improve the practicability of axial electron gun.
The preferable specific embodiment of the above, only the utility model；But the protection scope of the utility model is not
It is confined to this.Anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its improvement design is subject to equivalent substitution or change, should all cover in the protection scope of the utility model
It is interior.
Claims (8)
1. one kind can shorten the electron gun of length, including insulation porcelain cylinder (1), it is characterised in that: the top of the insulation porcelain cylinder (1)
It is fixedly connected with anode (2), the bottom of the insulation porcelain cylinder (1) is fixedly connected with cathode (3), is passed through at the top of the cathode (3)
It wears to the inner cavity of insulation porcelain cylinder (1), the inner cavity of the cathode (3) is fixedly connected with heated filament (4), and the inner cavity of the heated filament (4) is set
It is equipped with insulating ceramics (5).
2. the electron gun that one kind according to claim 1 can shorten length, it is characterised in that: the bottom of the anode (2)
Argon arc welding is connected to sealing shroud, and the top argon arc welding of the inner wall of sealing shroud and insulation porcelain cylinder (1) surface.
3. the electron gun that one kind according to claim 1 can shorten length, it is characterised in that: the top of the cathode (3)
Argon arc welding is connected to sealing shroud, and the bottom argon arc welding of the inner wall of sealing shroud and insulation porcelain cylinder (1) surface.
4. the electron gun that one kind according to claim 1 can shorten length, it is characterised in that: the insulating ceramics (5)
It is fixedly connected at the top of top and heated filament (4) inner cavity, the bottom of the bottom and heated filament (4) inner cavity of the insulating ceramics (5) is fixed
Connection, the surface of the insulating ceramics (5) is fixedly connected with the inner cavity of heated filament (4).
5. the electron gun that one kind according to claim 1 can shorten length, it is characterised in that: at the top of the cathode (3)
Two sides offer clamping groove, and the diameter of clamping groove inner cavity is identical, and the two sides of cathode (3) bottom offer clamping
Slot, and the diameter of clamping groove inner cavity is identical.
6. the electron gun that one kind according to claim 1 can shorten length, it is characterised in that: the top of the cathode (3)
Argon arc welding is connected to positioning step, and the bottom argon arc welding on the surface of positioning step and insulation porcelain cylinder (1) inner wall.
7. the electron gun that one kind according to claim 1 can shorten length, it is characterised in that: the bottom of the anode (2)
Argon arc welding is connected to positioning step, and the top argon arc welding on the surface of positioning step and insulation porcelain cylinder (1) inner wall.
8. the electron gun that one kind according to claim 1 can shorten length, it is characterised in that: the insulation porcelain cylinder (1)
Surface is fixedly connected with ceramic step, and ceramic step is isodistantly spaced the surface for being fixed on insulation porcelain cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054682.9U CN209434144U (en) | 2019-07-08 | 2019-07-08 | A kind of electron gun shortening length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054682.9U CN209434144U (en) | 2019-07-08 | 2019-07-08 | A kind of electron gun shortening length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209434144U true CN209434144U (en) | 2019-09-24 |
Family
ID=67979549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921054682.9U Active CN209434144U (en) | 2019-07-08 | 2019-07-08 | A kind of electron gun shortening length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209434144U (en) |
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2019
- 2019-07-08 CN CN201921054682.9U patent/CN209434144U/en active Active
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