Ray generator and ray equipment

Abstract

The embodiment of the utility model relates to the technical field of rays, and particularly discloses a ray generator and ray equipment, the ray generator comprises a shell and a ray generating assembly, the shell comprises a first upper cover and a first lower shell, the first lower shell is provided with a containing cavity and an opening, the first upper cover hermetically covers the opening, and the first lower shell is made of an insulating material; the ray generation assembly comprises a ray generation body and a circuit board, the circuit board is arranged in the containing cavity, and the ray generation body is connected to the circuit board. The first lower shell is made of an insulating material, so that in the process of connecting the first upper cover and the first lower shell, metal scraps can be reduced, the probability of short circuit of the ray generation assembly is further reduced, and the probability of damage and failure of the ray generation assembly is further reduced.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of radiation technology, and in particular to a radiation generator and radiation equipment. Background Art

[0002] Dental X-ray equipment is a device that can generate X-rays and is used to take pictures of the patient's mouth and teeth to generate images. It is widely used in dental diagnosis and treatment. The core component of dental X-ray equipment is the X-ray generator.

[0003] An X-ray generator generally includes a container and a ray generating component accommodated in the container. The ray generating component is fixed inside the container, and the container is filled with insulating oil to provide insulation. At present, the material of the container of the X-ray generator is basically metal, such as an aluminum oil tank or a copper oil tank. When the metal container is sealed and welded, the metal container is prone to generate metal debris inside. However, during the operation of the X-ray generator, the ray generating component will generate a high-voltage electric field, and the metal debris is easily moved to the high-voltage area by the electric field force from the high-voltage electric field, and then the metal debris is prone to contact with the ray generating component or the electrode to cause a short circuit, which can easily cause the ray generating component to be damaged and fail. Utility Model Content

[0004] The main technical problem solved by the embodiments of the utility model is to provide a ray generator and ray equipment, which can reduce the probability of damage and failure of ray generating components.

[0005] In order to solve the above technical problems, a technical solution adopted in an embodiment of the utility model is: a ray generator is provided, including a shell and a ray generating component, the shell includes a first upper cover and a first lower shell, the first lower shell is provided with a receiving cavity and an opening, the first upper cover seals the opening, and the first lower shell is made of insulating material; the ray generating component includes a ray generating body and a circuit board, the circuit board is arranged in the receiving cavity, and the ray generating body is connected to the circuit board.

[0006] Optionally, the ray generator further includes a first annular seal, which is disposed between the first upper cover and the first lower shell.

[0007] Optionally, the first lower shell is further provided with a slot, the slot is located at the periphery of the opening, and the first annular seal is provided with a snap-fitting portion, the snap-fitting portion is snap-fitted to the slot, so that the first annular seal is fixed to the first lower shell.

[0008] Optionally, the ray generator also includes a fastener and a mating piece, and a flange is provided on the periphery of the first lower shell near the opening, the flange abuts against the side of the first annular seal facing away from the first upper cover, and the mating piece is connected to the side of the flange facing away from the first annular seal, and the fastener passes through the first upper cover, the first annular seal and the flange in sequence and then is connected to the mating piece.

[0009] Optionally, a plurality of grooves are provided on a side of the flange facing away from the first annular seal.

[0010] Optionally, the mating piece is provided with a screw hole, and the fastener is provided with a screw connection portion, and the screw connection portion passes through the first upper cover, the first annular seal and the flange in sequence and is screwed to the screw hole.

[0011] Optionally, the receiving cavity is filled with an insulating medium, and the insulating medium covers the ray generating body and the circuit board.

[0012] Optionally, the insulating medium is a liquid insulating medium; the first upper cover is provided with a liquid injection hole, the inner wall of the liquid injection hole is provided with a limiting portion and an internal thread, the limiting portion is located below the internal thread, the ray generator also includes a second annular seal and a locking member, the locking member is provided with an external thread, the second annular seal abuts against the limiting portion, the locking member is threaded into the liquid injection hole, and the locking member abuts against the side of the second annular seal away from the limiting portion.

[0013] Optionally, the first upper cover is made of insulating material.

[0014] Optionally, a lead wire electrically connected to the circuit board passes through the first upper cover and is connected to an external power source.

[0015] Optionally, the shell further includes a second upper cover, the second upper cover covers a surface of the first upper cover facing away from the first lower shell, and the second upper cover is made of metal.

[0016] Optionally, the first upper cover is made of metal.

[0017] Optionally, the first lower shell is made of plastic.

[0018] Optionally, the shell also includes a second lower shell, which covers the outer peripheral surface of the first lower shell, and the second lower shell is made of metal. The side wall of the second lower shell is provided with a ray output area, and the ray output area is used for the rays generated by the ray generating body to penetrate.

[0019] In order to solve the above technical problems, another technical solution adopted by the embodiment of the utility model is: to provide a radiation device, including the above-mentioned radiation generator.

[0020] The beneficial effects of the embodiment of the utility model are as follows: Different from the prior art, the embodiment of the utility model provides a ray generator, including a shell and a ray generating assembly, the shell including a first upper cover and a first lower shell, the first lower shell is provided with a receiving cavity and an opening, the first upper cover seals the opening, and the first lower shell is made of insulating material; the ray generating assembly includes a ray generating body and a circuit board, the circuit board is arranged in the receiving cavity, and the ray generating body is connected to the circuit board. By making the first lower shell of insulating material, the generation of metal debris can be reduced during the connection between the first upper cover and the first lower shell, thereby reducing the probability of a short circuit in the ray generating assembly, thereby reducing the probability of damage and failure of the ray generating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a schematic diagram of the overall structure of the ray generator provided by the embodiment of the utility model;

[0023] Figure 2 It is an exploded view of the overall structure of the ray generator provided by the embodiment of the utility model;

[0024] Figure 3 This is a partial structural cross-sectional view of the ray generator provided by the embodiment of the utility model Figure 1 ;

[0025] Figure 4 This is a partial structural cross-sectional view of the ray generator provided by the embodiment of the utility model Figure 2 .

[0026] Description of reference numerals:

[0027] 1 shell, 11 first upper cover, 111 liquid injection hole, 1111 limiting part, 112 through hole, 12 first lower shell, 121 accommodating cavity, 1211 first fixing groove, 1212 second fixing groove, 122 opening, 123 slot, 124 flange, 1241 groove, 13 second upper cover, 14 second lower shell, 141 ray output area, 2 ray generating assembly, 21 ray generating body, 22 circuit board, 3 first annular seal, 31 clamping part, 4 fastener, 41 screw part, 5 matching part, 51 screw hole, 6 second annular seal, 7 locking part, 8 pressure plate. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0030] See also Figure 1 and Figure 2 The utility model provides an embodiment of a ray generator, the ray generator includes a housing 1 and a ray generating assembly 2, the housing 1 includes a first upper cover 11 and a first lower housing 12, the first lower housing 12 is provided with a receiving cavity 121 and an opening 122, the first upper cover 11 seals the opening 122, and the first lower housing 12 is made of insulating material; the ray generating assembly 2 includes a ray generating body 21 and a circuit board 22, the ray generating body 21 and the circuit board 22 are arranged in the receiving cavity 121, and the ray generating body 21 is connected to the circuit board 22. It can be understood that the connection method of the first upper cover 11 and the first lower housing 12 includes but is not limited to one or more connection methods such as screw connection, clamping, bonding, clamping or magnetic attraction.

[0031] For the first upper cover 11, in some embodiments, the first upper cover 11 is made of insulating material. When the first upper cover 11 is made of insulating material, the first upper cover 11 is provided with a through hole 112, and the lead wire electrically connected to the circuit board 22 passes through the first upper cover 11 through the through hole 112 and is connected to an external power source.

[0032] For the above-mentioned first lower shell 12, in some embodiments, the first lower shell 12 is made of plastic material, and the first lower shell 12 is made of polymer PE material. Through the above method, the electrical insulation and injection molding characteristics of the polymer PE material can be effectively utilized to prevent the first lower shell 12 from generating metal debris to reduce the probability of short circuit of the ray generating component 2, and to facilitate large-scale production of the first lower shell 12 to improve production efficiency. In addition, compared with the traditional metal shell of the ray generator, which is formed by sealing welding, the first lower shell 12 of the shell 1 is made of polymer PE material, which can omit the sealing welding molding step, effectively avoid the problem of difficult sealing welding and high process requirements, reduce production costs and assembly difficulties, and, compared with the traditional metal shell, the first lower shell 12 of the shell 1 is made of polymer PE material, which can effectively reduce the overall weight of the ray generator.

[0033] See also Figure 2 and Figure 3 In order to improve the sealing between the first upper cover 11 and the first lower shell 12 , the ray generator further includes a first annular seal 3 , which is disposed between the first upper cover 11 and the first lower shell 12 .

[0034] For the first annular seal 3, in order to achieve rapid positioning or pre-fixation during the assembly of the first annular seal 3, please refer to Figure 2 and Figure 3 The first lower shell 12 is also provided with a slot 123, which is located at the periphery of the opening 122. The first annular seal 3 is provided with a snap-fitting portion 31, which is snap-fitted to the slot 123, so that the first annular seal 3 is fixed to the first lower shell 12, and the first annular seal 3 is quickly positioned or pre-fixed during the assembly process. In some embodiments, the slot 123 is an annular groove body concavely formed from the periphery of the opening 122, and the snap-fitting portion 31 is an annular block convexly formed from the bottom surface of the first annular seal 3, and the two are adapted to be snap-fitted to each other.

[0035] See also Figure 2 and Figure 3 In order to better connect the first upper cover 11, the first lower shell 12 and the first annular seal 3, the ray generator further includes a fastener 4 and a fitting 5. The first lower shell 12 is provided with a flange 124 at the periphery near the opening 122. The flange 124 abuts against the side of the first annular seal 3 away from the first upper cover 11. The fitting 5 is connected to the side of the flange 124 away from the first annular seal 3. The fastener 4 passes through the first upper cover 11, the first annular seal 3 and the flange 124 in sequence and is connected to the fitting 5. In the above manner, the first upper cover 11 and the first lower shell 12 can clamp the first annular seal 3, so that the first annular seal 3 is fixed by clamping.

[0036] For the above fastener 4 and mating part 5, please refer to Figure 2 and Figure 3 The matching piece 5 is provided with a screw hole 51, and the fastener 4 is provided with a screw connection portion 41. The screw connection portion 41 passes through the first upper cover 11, the first annular seal 3 and the flange 124 in sequence and is screwed to the screw hole 51. In the above manner, the fastener 4 and the matching piece 5 can play a clamping role by screwing, so that the first upper cover 11 and the first lower shell 12 are fixed by screwing.

[0037] See also Figure 2 and Figure 3 , a plurality of grooves 1241 are provided on the side of the flange 124 away from the first annular seal 3. In some embodiments, the flange 124 is annular, and the plurality of grooves 1241 on the side of the flange 124 away from the first annular seal 3 are evenly arranged at annular intervals. In the above manner, when the material of the flange 124 is plastic, the weight of the flange 124 can be reduced, and the flange 124 can have better elasticity, so that the first upper cover 11, the flange 124 and the fitting 5 can better abut against each other, thereby ensuring the sealing of the housing 1.

[0038] Further, when the first upper cover 11 and the first lower shell 12 are both made of insulating materials, in order to prevent the radiation generated by the radiation generating body 21 from penetrating in any direction and causing harm, please refer to Figure 2 The housing 1 further includes a second upper cover 13, which covers the surface of the first upper cover 11 away from the first lower shell 12, and is made of metal; the housing 1 further includes a second lower shell 14, which covers the outer peripheral surface of the first lower shell 12, and is made of metal. The side wall of the second lower shell 14 is provided with a ray output area 141, and the ray output area 141 is used for the rays generated by the ray generating body 21 to penetrate. In the above manner, it is possible to avoid the rays generated by the ray generating body 21 from penetrating in any direction to cause harm, and it is also possible to make the rays generated by the ray generating body 21 be output in the direction of the ray output area 141. In some embodiments, the second upper cover 13 and the second lower shell 14 are made of lead or an alloy containing lead, which can have a good effect of isolating rays.

[0039] For the above-mentioned ray generator, in order to protect the ray generating assembly 2 , the receiving cavity 121 is filled with an insulating medium (not shown), and the insulating medium covers the ray generating body 21 and the circuit board 22 .

[0040] For the above insulating medium, in some embodiments, the insulating medium is a liquid insulating medium. When the insulating medium is a liquid insulating medium, please refer to Figure 2 and Figure 4The first upper cover 11 is provided with a liquid injection hole 111, and the inner wall of the liquid injection hole 111 is provided with a limit portion 1111 and an internal thread, and the limit portion 1111 is located below the internal thread. The ray generator also includes a second annular seal 6 and a locking member 7, and the locking member 7 is provided with an external thread. The second annular seal 6 abuts against the limit portion 1111, and the locking member 7 is screwed into the liquid injection hole 111, and the locking member 7 abuts against the side of the second annular seal 6 away from the limit portion 1111. Through the above-mentioned liquid injection hole 111, the liquid insulating medium can be conveniently injected and filled into the receiving cavity 121, and through the above-mentioned second annular seal 6, the sealing performance of the liquid injection hole 111 can be improved, and the probability of liquid leakage from the liquid injection hole 111 can be reduced.

[0041] Further, in order to avoid direct contact between the locking member 7 and the second annular seal 6, so as to reduce the wear of the second annular seal 6 caused by the rotation and locking action of the locking member 7, please refer to Figure 2 and Figure 4 The ray generator further includes a pressing plate 8 , which is disposed between the second annular sealing member 6 and the locking member 7 .

[0042] Furthermore, for the above-mentioned liquid insulating medium, in some embodiments, the liquid insulating medium is insulating oil. Through the above-mentioned method, the expansion coefficient of the insulating oil can be made close to the expansion coefficient of the first upper cover 11 and the first lower shell 12 made of PE material. During the operation and heating of the radiation generating component 2, the oil pressure inside the receiving chamber 121 can be avoided to be excessive when the temperature rises, thereby reducing leakage caused by excessive oil pressure.

[0043] For the above-mentioned insulating medium, in some embodiments, the insulating medium is a solid insulating medium. When the insulating medium is a solid insulating medium, it is usually only necessary that the opening 122 is covered by a cover body made of metal material to prevent radiation from penetrating in any direction. Therefore, there are two cases, as follows: first, the first upper cover 11 made of insulating material is omitted, and the second upper cover 13 made of metal material is retained; second, the first upper cover 11 is configured to be a metal material, and the second upper cover 13 made of metal material is omitted. In addition, since when the insulating medium is a solid insulating medium, it is only necessary that the opening 122 is covered by a cover body made of metal material to prevent radiation from penetrating in any direction, the fastener 4, the fitting 5, the first annular seal 3 and the second annular seal 6, etc. can also be omitted, and can be directly connected by bonding, which can effectively simplify the structure.

[0044] In addition, in some embodiments, the insulating medium is a liquid insulating medium, the first upper cover 11 is made of metal and seals the opening 122 of the first lower shell 12 to prevent leakage of the liquid insulating medium, and the second upper cover 13 is omitted.

[0045] For the above-mentioned ray generator, in order to facilitate the installation of the ray generating component 2, please refer to Figure 2 and Figure 3 The side wall of the accommodating cavity 121 is provided with a first fixing groove 1211 for fixing and fitting the circuit board 22, and the bottom wall of the accommodating cavity 121 of the first lower shell 12 is provided with a second fixing groove 1212 for fixing and fitting the circuit board 22. The circuit board 22 is respectively plugged into the first fixing groove 1211 and the second fixing groove 1212 to fix the circuit board 22 at different positions around the periphery, thereby improving the stability of the circuit board 22; the ray generating body 21 includes but is not limited to being fixed to the circuit board 22 by welding, plugging, clamping or screwing, which can reduce the shaking of the ray generating body 21 so that the ray generating body 21 can stably output rays. The ray generating body 21 includes a tube and a transformer fixed to the circuit board 22. The tube is used to generate rays, and the transformer is used to convert the voltage output by the power supply into the high voltage required by the tube.

[0046] The ray generator provided by the embodiment of the utility model includes a housing 1 and a ray generating assembly 2. The housing 1 includes a first upper cover 11 and a first lower housing 12. The first lower housing 12 is provided with a receiving cavity 121 and an opening 122. The first upper cover 11 seals the opening 122. The first lower housing 12 is made of insulating material. The ray generating assembly 2 includes a ray generating body 21 and a circuit board 22. The circuit board 22 is arranged in the receiving cavity 121. The ray generating body 21 is connected to the circuit board 22. By making the first lower housing 12 of insulating material, the generation of metal debris can be reduced during the connection process between the first upper cover and the first lower housing, thereby reducing the probability of a short circuit in the ray generating assembly 2, thereby reducing the probability of damage and failure of the ray generating assembly 2.

[0047] The utility model further provides an embodiment of a radiation device, the radiation device includes the above-mentioned radiation generator, and the specific structure and function of the above-mentioned radiation generator can be referred to the above-mentioned embodiment, which will not be described one by one here.

[0048] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ray generator, characterized in that: include: The housing comprises a first upper cover and a first lower cover, wherein the first lower cover is provided with a receiving cavity and an opening, the first upper cover seals the opening, and the first lower cover is made of insulating material; The ray generating component comprises a ray generating body and a circuit board. The ray generating body and the circuit board are arranged in the receiving cavity, and the ray generating body is connected to the circuit board.

2. The ray generator according to claim 1, characterized in that: The ray generator further includes a first annular seal, which is disposed between the first upper cover and the first lower shell.

3. The ray generator according to claim 2, characterized in that: The first lower shell is also provided with a slot, which is located at the periphery of the opening. The first annular seal is provided with a snap-fitting portion, which is snap-fitted to the slot, so that the first annular seal is fixed to the first lower shell.

4. The ray generator according to claim 2 or 3, characterized in that: The ray generator also includes a fastener and a mating piece. A flange is provided on the periphery of the first lower shell near the opening. The flange abuts against the side of the first annular seal facing away from the first upper cover. The mating piece is connected to the side of the flange facing away from the first annular seal. The fastener passes through the first upper cover, the first annular seal and the flange in sequence and is connected to the mating piece.

5. The ray generator according to claim 4, characterized in that: A plurality of grooves are provided on a side of the flange facing away from the first annular seal.

6. The ray generator according to claim 4, characterized in that: The matching piece is provided with a screw hole, and the fastener is provided with a screw connection portion. The screw connection portion passes through the first upper cover, the first annular seal and the flange in sequence and is screwed to the screw hole.

7. The ray generator according to claim 1, characterized in that: The receiving cavity is filled with an insulating medium, and the insulating medium covers the ray generating body and the circuit board.

8. The ray generator according to claim 7, characterized in that: The insulating medium is a liquid insulating medium; The first upper cover is provided with a liquid injection hole, and the inner wall of the liquid injection hole is provided with a limiting portion and an internal thread, and the limiting portion is located below the internal thread; The ray generator also includes a second annular seal and a locking member, wherein the locking member is provided with an external thread, the second annular seal abuts against the limiting portion, the locking member is threaded into the injection hole, and the locking member abuts against a side of the second annular seal away from the limiting portion.

9. The ray generator according to claim 1, characterized in that: The first upper cover is made of insulating material.

10. The ray generator according to claim 9, characterized in that: The lead wire electrically connected to the circuit board passes through the first upper cover and is connected to an external power source.

11. The ray generator according to claim 9, characterized in that: The housing further includes a second upper cover, the second upper cover covers a surface of the first upper cover that is away from the first lower shell, and the second upper cover is made of metal.

12. The ray generator according to claim 1, characterized in that: The first upper cover is made of metal.

13. The ray generator according to claim 1, characterized in that: The first lower shell is made of plastic.

14. The ray generator according to claim 1, characterized in that: The shell also includes a second lower shell, which covers the outer peripheral surface of the first lower shell, and the second lower shell is made of metal. The side wall of the second lower shell is provided with a ray output area, and the ray output area is used for the rays generated by the ray generating body to penetrate.

15. A radiation device, characterized in that: Comprising a ray generator as claimed in any one of claims 1 to 14.

Images