CN214205930U - Grid-control x-ray combined machine head internal structure layout - Google Patents
Grid-control x-ray combined machine head internal structure layout Download PDFInfo
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- CN214205930U CN214205930U CN202120113198.XU CN202120113198U CN214205930U CN 214205930 U CN214205930 U CN 214205930U CN 202120113198 U CN202120113198 U CN 202120113198U CN 214205930 U CN214205930 U CN 214205930U
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Abstract
The invention aims to realize the internal structural layout of a grid-control X-ray combined machine head, and has the difficulty that how to arrange components such as a grid-control X-ray bulb tube, a high-voltage transformer, a high-voltage rectifying circuit, a low-voltage direct-current power supply, a cathode and grid control circuit, an interface board connected with the outside of the combined machine head and the like in the limited internal space of the combined machine head, ensure the safe insulation distance between high-voltage potentials in the combined machine head and avoid the interference of a high-voltage electric field and a magnetic field on low-voltage components. The invention realizes the grid control X-ray combined machine head by placing the cathode and the grid control circuit at a negative high-voltage potential, arranging the space positions of all the parts in a specific mode to meet the insulation requirement among the parts, carrying out metal shielding on part of the parts, completing the transmission of signals and power supply in a mode of combining optical fibers and wires, arranging a specific routing path and shielding for the wires and the like, and finally provides a higher-quality ray source for a mobile X-ray machine, a dental CT, a mammary machine and other equipment.
Description
Technical Field
The invention belongs to x-ray apparatus equipment, and particularly relates to an x-ray combined handpiece with grid control capability.
Background
At present, the traditional X-ray combined machine head and a grid control system applied to large-scale equipment exist in the market, but the grid control technology is not applied to the X-ray combined machine head all the time due to the fact that the grid control system is complex and huge, the company has invented the combined machine head with the grid control capability and applied for a patent (name: the X-ray combined machine head, application number: 201910166518.5) to an implementation method, and on the basis, the company applies for the patent to an innovative structure of the X-ray grid control combined machine head.
Disclosure of Invention
The invention aims to realize the internal structural layout of a grid-control X-ray combined machine head, and has the difficulty that how to arrange components such as a grid-control X-ray bulb tube, a high-voltage transformer, a high-voltage rectifying circuit, a low-voltage direct-current power supply, a cathode and grid control circuit, an interface board connected with the outside of the combined machine head and the like in the limited internal space of the combined machine head, ensure the safe insulation distance between high-voltage potentials in the combined machine head and avoid the interference of a high-voltage electric field and a magnetic field on low-voltage components.
The present invention achieves the above objects collectively by a combination of methods: 1. the cathode and grid control circuit is directly arranged at a negative high-voltage potential, and the communication between cathode and grid control signals and the outside is completed by using optical fibers, so that a plurality of high-voltage isolation transformers are saved, and the space is saved; 2. the space positions of all the components are arranged in a specific mode to meet the insulation requirement among the components, and meanwhile, the requirement of a combined machine head on space compactness is met; 3. the parts sensitive to electromagnetic interference, including the cathode and the grid control circuit, are shielded by metal; 4. due to the complex distribution of the electric field inside the combined machine head, a specific routing path and shielding are arranged for the conducting wire. Through comprehensive application and repeated modification and test of the method, the grid-control X-ray combined handpiece is finally realized, and a higher-quality ray source is provided for a mobile X-ray machine and equipment such as a dental X-ray machine, a dental CT (computed tomography), a mammary machine and the like.
Drawings
The figure is a structure diagram of a grid-controlled X-ray tube, and a metal shell 1 is hidden for displaying the internal structure.
A metal housing 1; a rectangular cavity 2; an x-ray tube 3; a high-voltage rectifier circuit board 4; 4.1 of a high-voltage transformer; a voltage-doubling rectifying positive-pressure module 4.2; voltage-multiplying rectification negative pressure module 4.3: a high-voltage detection positive-pressure module 4.4; a high-pressure detection negative pressure module 4.5; an interface board 5; a cathode and gate control board 6; a low-voltage direct-current power supply 6.1; a cathode and gate control module 6.2; 6.3 of metal sheet; an insulating fixing plate 7A; an insulating fixing plate 7B; a lead plate 8.
Detailed Description
The specific embodiment of the invention is as follows:
the invention relates to an x-ray combined machine head with grid control capability, which comprises a metal shell 1, a rectangular cavity 2, an x-ray bulb tube 3, a high-voltage rectifier circuit board 4, an interface board 5, a cathode and grid control board 6, an insulating fixing plate 7, a lead plate 8 and the like as shown in the attached drawing. The rectangular cavity 2 is made of metal, the x-ray bulb tube is positioned in the rectangular cavity 2, a window is formed in the side wall, facing to the cathode, of the x-ray bulb tube 3 in the rectangular cavity 2, the interface board 5 is fixed on the window, the lead plate 8 is separated between the interface board 5 and the cathode of the x-ray bulb tube 3, the lead plate 8 is connected to the inner wall of the rectangular cavity 2 through a lead, and the anode of the x-ray bulb tube 3 is fixed on the inner wall of the rectangular cavity 2 through an insulating flange.
The insulating fixing plate 7 comprises a base plate A and a base plate B, the insulating fixing plate 7A is horizontally fixed on the rectangular cavity 2, the insulating fixing plate 7B is vertically fixed on the insulating fixing plate 7A, the intersecting line of the insulating fixing plate 7A and the insulating fixing plate 7B is parallel to the longitudinal axis of the X-ray bulb 3, the high-voltage rectifier circuit board 4 is fixed on one side of the insulating fixing plate 7B, and the cathode and grid control board 6 is fixed on the other side of the insulating fixing plate 7B.
Further, be provided with low pressure DC power supply 6.1, negative pole and grid control module 6.2 on negative pole and the grid control panel 6, be provided with circuits such as high-voltage transformer 4.1 and voltage-multiplying rectification malleation module 4.2, voltage-multiplying rectification negative pressure module 4.3, high-pressure detection malleation module 4.4 and high-pressure detection negative pressure module 4.5 on the high-pressure rectifier circuit board 4.
Further, in order to save space, the basic potentials of the low-voltage dc power supply 6.1 and the cathode and gate control module 6.2 are set to be negative high voltage, and then the low-voltage dc power supply 6.1 and the cathode and gate control module 6.2 are located on the cathode side of the x-ray tube 3 at the positions above the cathode and gate control board 6, in order to avoid electromagnetic interference, the outside of the cathode and gate control module 6.2 is shielded by a metal thin plate 6.3, and a shielding lead is led out from the metal thin plate 6.3 and connected to the cathode end of the x-ray tube 3.
Further, in order to save space, the high voltage transformer 4.1 is located on the back of the upper half of the high voltage rectifier circuit board 4, and penetrates through the insulating fixing plate 7B and the cathode and grid control board 6, and since the low voltage dc power supply 6.1 and the cathode and grid control module 6.2 occupy the space on the cathode and grid control board 6 on the cathode side of the x-ray tube 3, in order to avoid collision, the position of the high voltage transformer 4.1 on the high voltage rectifier circuit board 4 is slightly close to the anode side of the x-ray tube 3.
Further, in order to avoid high-voltage discharge, a high-voltage detection positive-voltage module 4.4 and a high-voltage detection negative-voltage module 4.5 are respectively arranged on the left side and the right side of the high-voltage transformer, wherein the high-voltage detection positive-voltage module 4.4 is arranged on the anode side of the x-ray bulb tube 3, and the high-voltage detection negative-voltage module 4.5 is arranged on the cathode side of the x-ray bulb tube 3; the lower half part of the high-voltage rectifying plate 4 is the voltage-doubling rectifying positive-voltage module 4.2 and the voltage-doubling rectifying negative-voltage module 4.3, the equal ground potential is located in the middle of the lower half part of the high-voltage rectifying plate 4, the voltage is gradually increased towards the left side and the right side, namely the leftmost side and the rightmost side are respectively the highest points of positive and negative potentials, the highest point of the positive potential is located on the anode side of the X-ray bulb tube 3, and the highest point of the negative potential is located on the cathode side of the X-ray bulb tube 3.
Further, since the cathode and gate circuits are at negative high voltage potential, which is not favorable for using wires to transmit signals to the outside, the cathode and gate control board 6 is provided with optical fibers connected to the interface board 5, and the control of the cathode and gate and the transmission of feedback signals are completed by the optical fibers.
Furthermore, a power input lead of the high-voltage transformer 4.1, positive and negative high-voltage detection signal lines of the high-voltage detection positive-voltage module 4.4 and the high-voltage detection negative-voltage module 4.5 are led out from the high-voltage rectifier circuit board 4, a power input lead of the low-voltage direct-current power supply 6.1 is led out from the cathode and grid control board 6 and is connected to the interface board 5 after being gathered, the wire routing position after being gathered is positioned at the middle position in front of the high-voltage rectifier circuit board 4 from top to bottom, and in order to avoid high-voltage discharge, a ceramic insulating tube or other insulating materials are sleeved outside the lead.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and the technical solutions of the present invention should be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a grid control x ray combination aircraft nose inner structure overall arrangement, includes metal casing, rectangle cavity, x ray bulb, high-pressure rectifier circuit board, interface board, negative pole and grid control panel, insulating fixed plate, stereotype, its characterized in that: the rectangular cavity is made of metal, the X-ray bulb tube is positioned in the rectangular cavity, a window is formed in the side wall, facing to the cathode, of the X-ray bulb tube in the rectangular cavity, the interface board is fixed on the window, the lead board is isolated from the cathode of the X-ray bulb tube, the lead board is connected to the inner wall of the rectangular cavity through a lead wire, the anode of the X-ray bulb tube is fixed on the inner wall of the rectangular cavity through an insulating flange, the insulating fixing plate comprises A and B, the insulating fixing plate A is horizontally fixed on the rectangular cavity, the insulating fixing plate B is vertically fixed on the insulating fixing plate A, the intersection line of the insulating fixing plate A and the insulating fixing plate B is parallel to the longitudinal axis of the X-ray bulb tube, and the high-voltage rectifier circuit board is fixed on one side of the insulating fixing plate B, the cathode and the grid control plate are fixed on the other side of the insulating fixing plate B.
2. The internal structural layout of a gated x-ray cluster head of claim 1, wherein: the cathode and grid control panel is provided with a low-voltage direct-current power supply, a cathode and grid control module, and the basic potentials of the low-voltage direct-current power supply and the cathode and grid control module are negative high voltage; the high-voltage rectifier circuit board is provided with a high-voltage transformer, a voltage-doubling rectifier positive-voltage module, a voltage-doubling rectifier negative-voltage module, a high-voltage detection positive-voltage module and a high-voltage detection negative-voltage module.
3. The internal structural layout of a gated x-ray cluster head of claim 2, wherein: the low-voltage direct current power supply, the cathode and grid control module are positioned on the cathode and grid control board and close to one side of the cathode of the X-ray bulb tube.
4. The internal structural layout of a gated x-ray cluster head of claim 2, wherein: the high-voltage transformer is positioned in the middle of the upper half part of the high-voltage rectifier circuit board, deviates from the anode side of the X-ray bulb tube, is installed on the back surface of the high-voltage rectifier circuit board, penetrates through the insulating fixing plate B and the cathode and grid control board, the left side and the right side of the high-voltage transformer are respectively provided with a high-voltage detection positive-voltage module and a high-voltage detection negative-voltage module, wherein the anode side of the X-ray bulb tube is provided with the high-voltage detection positive-voltage module, the cathode side of the X-ray bulb tube is provided with the high-voltage detection negative-voltage module, the lower half part of the high-voltage rectifier circuit board is provided with the voltage-doubling rectifier positive-voltage module and the voltage-doubling rectifier negative-voltage module, the equal ground potential is positioned in the middle part of the lower half part of the high-voltage rectifier circuit board, the voltage is gradually increased towards the left side and the right side, namely, the leftmost side and the rightmost point of the positive potential is positioned on the anode side of the X-ray bulb tube, the highest point of the negative potential is located on the cathode side of the x-ray tube.
5. The internal structural layout of a gated x-ray cluster head of claim 1, wherein: and the cathode and grid control panel is provided with optical fibers connected to the interface board, and lead-out wires of the cathode and grid control panel are connected to the cathode end of the X-ray bulb tube.
6. The internal structural layout of a gated x-ray cluster head of claim 2, wherein: the high-voltage rectifier circuit board is provided with a power input lead of the high-voltage transformer, positive and negative high-voltage detection signal wires of the high-voltage detection positive-voltage module and the high-voltage detection negative-voltage module, the cathode and the grid control board are used for leading out the power input lead of the low-voltage direct-current power supply, the power input lead is connected to the interface board after being gathered, the wire routing position after being gathered is positioned in the middle position in front of the high-voltage rectifier circuit board from top to bottom, and the wire is sleeved with an insulating material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120113198.XU CN214205930U (en) | 2021-01-15 | 2021-01-15 | Grid-control x-ray combined machine head internal structure layout |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120113198.XU CN214205930U (en) | 2021-01-15 | 2021-01-15 | Grid-control x-ray combined machine head internal structure layout |
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| CN214205930U true CN214205930U (en) | 2021-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114765916A (en) * | 2021-01-15 | 2022-07-19 | 北京艾立科技有限公司 | Grid-control x-ray combined machine head internal structure layout |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114765916A (en) * | 2021-01-15 | 2022-07-19 | 北京艾立科技有限公司 | Grid-control x-ray combined machine head internal structure layout |
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