High-pressure lead-in pile head and high-pressure accelerator

Abstract

The utility model discloses a high-voltage leading-in pile head and a high-voltage accelerator, the high-voltage accelerator comprises a housing and an electrode, the housing is provided with a high-voltage leading-in hole, the high-voltage leading-in pile head comprises a first insulating part, a second insulating part, an insulating outer cover and a cable connecting piece, the first insulating part comprises an insulating part main body and an insulating part bulge, and the second insulating part comprises an insulating part main body and an insulating part bulge; the insulating part bulge protrudes out of the middle part of the insulating part main body and is matched with the high-voltage lead-in hole in size; a first mounting hole is formed in the center of the first insulating part; a mounting groove matched with the insulating part bulge is formed in the middle of the second insulating part; a second mounting hole is formed in the bottom of the mounting groove; the cable connecting piece is arranged in the first mounting hole and the second mounting hole and is fixed through a fixing piece, one end of the cable connecting piece is connected with the electrode, and the other end of the cable connecting piece is connected with a high-voltage cable. The utility model can solve the problem that a high-voltage cable is difficult to lead into equipment in a narrow space, and has the advantages of simple structure, safety, stability and good sealing performance.

Description

Technical Field

[0001] The utility model relates to a high-voltage introduction pile head and a high-voltage accelerator. Background Art

[0002] A high-voltage accelerator is a device used to accelerate charged particles by using a high-voltage electric field. In a high-voltage accelerator, charged particles are accelerated to very high speeds in order to conduct particle physics research or to produce high-energy particle beams for other experiments. A high-voltage accelerator usually includes components such as an acceleration chamber, a magnetic field, and a control system, which can produce high-energy charged particle beams. Common high-voltage accelerators include electron accelerators, proton accelerators, etc.

[0003] High-voltage accelerators play an important role in modern physics research, helping scientists explore the basic structure and interactions of particles. By accelerating charged particles, scientists can conduct collision experiments under high energy conditions to study the behavior of particles under extreme conditions. These experiments help reveal the basic laws of nature and deepen human understanding of the universe.

[0004] In addition to scientific research, high-voltage accelerators also play a role in medicine and industrial applications.

[0005] In the medical field, high-voltage accelerators can be used in applications such as radiation therapy and medical imaging to help doctors diagnose diseases and treat patients.

[0006] In the industrial field, high-voltage accelerators can be used in fields such as material modification, surface treatment, and beam etching to improve production efficiency and product quality.

[0007] High-voltage accelerators are powerful tools that provide scientists with ways to explore the microscopic world and improve the quality of life. As science and technology continue to develop, high-voltage accelerators will continue to play an important role in various fields.

[0008] In the application of high-voltage accelerators, the power supply voltage is often as high as 200 kilovolts or more. Since the accelerator shell needs to be grounded to ensure safety, how to effectively pass the high voltage through the grounded shell into the accelerator has become an urgent problem to be solved. The existing pile head design has defects such as large size, easy breakdown, and inconvenient connection when subjected to high voltage. Utility Model Content

[0009] The technical problem to be solved by the utility model is to overcome the defects of the pile head of the high-voltage accelerator in the prior art, such as large volume, easy breakdown and inconvenient connection, and to provide a high-voltage introduction pile head and a high-voltage accelerator which can solve the problem of difficulty in introducing high-voltage cables into the equipment in a narrow space and have the advantages of simple structure, safety, stability and good sealing.

[0010] The utility model solves the above technical problems through the following technical solutions:

[0011] A high voltage introduction pile head for a high voltage accelerator, characterized in that the high voltage accelerator comprises a shell and an electrode, the shell is provided with a high voltage introduction hole, the high voltage introduction pile head comprises a first insulating member, a second insulating member, an insulating outer cover and a cable connector,

[0012] The first insulating member includes an insulating member body and an insulating member protrusion, wherein the insulating member protrusion protrudes from the middle of the insulating member body and has a size matching the high-voltage introduction hole, and a first mounting hole is provided at the center of the first insulating member;

[0013] A mounting groove matching the protrusion of the insulating member is provided in the middle of the second insulating member, and a second mounting hole is provided at the bottom of the mounting groove;

[0014] The cable connector is disposed in the first mounting hole and the second mounting hole and fixed by a fixing member, one end of the cable connector is connected to the electrode and the other end is connected to the high-voltage cable;

[0015] The insulating outer cover comprises an installation cavity and a cable installation hole. The high-voltage cable passes through the cable installation hole and is connected with the cable connector in the installation cavity.

[0016] Preferably, the first insulating member is arranged inside the shell, the second insulating member is arranged outside the shell, and the insulating cover is installed outside the second insulating member.

[0017] Preferably, the cable connector includes a connecting rod, an elastic member and a contact head, the contact head is spherical and connected to the connecting rod, the elastic member is sleeved on the connecting rod and is located between the contact head and the first insulating member, the elastic member applies an elastic force from the outer shell to the electrode to the contact head, and the outer end of the connecting rod is connected to the high-voltage cable.

[0018] Preferably, a receiving groove for receiving the contact head is provided at a position on the electrode corresponding to the high voltage introduction hole, the shape of the receiving groove matches the shape of the contact head, and the outer surface of the connecting rod fits with the inner surfaces of the first mounting hole and the second mounting hole.

[0019] Preferably, the cable connector also includes a mounting tube, one end of which is provided with a clamping piece and the other end of which is provided with an external thread, the inner top end of the first mounting hole is provided with a cylindrical countersunk hole matching the clamping piece, the outer side of the second insulating piece is provided with a locking nut matching the external thread, and the connecting rod is passed through the mounting tube.

[0020] Preferably, the outer end of the connecting rod is welded to the high-voltage cable.

[0021] Preferably, the cable connector includes a mounting tube, and a copper soft wire is provided at a position on the electrode corresponding to the high-voltage introduction hole. The copper soft wire passes through the mounting tube and is connected to the high-voltage cable.

[0022] Preferably, the installation tube is provided with potting glue, the outer end of the installation tube is provided with an external thread, the outer side of the second insulating member is provided with a clamping nut and a parallel cap matching the external thread, and the copper soft wire is fixed between the clamping nut and the parallel cap after passing through the installation tube.

[0023] Preferably, the cable connector comprises a connecting rod and a metal elastic sheet, one end of the metal elastic sheet is connected to the connecting rod and the other end is in contact with the electrode.

[0024] The utility model also provides a high-voltage accelerator, which is characterized in that the high-voltage accelerator system comprises the high-voltage introduction pile head as described above.

[0025] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0026] The positive and progressive effects of the utility model are:

[0027] The utility model can solve the problem of difficulty in introducing high-voltage cables into the interior of equipment in a narrow space, and has the advantages of simple structure, safety, stability and good sealing.

[0028] Specifically, the high pressure introduction pile head of the utility model has:

[0029] Small size: By optimizing the structural design and material selection, the pile head can withstand high voltage while maintaining a small size, making it easy to install and use inside the accelerator.

[0030] Good stability: Made of high-quality materials with high breakdown voltage, it ensures the stability and safety of the pile head in high-voltage environments.

[0031] Easy connection: It solves the connection problem of high-voltage electrode sheet and external power supply that is not easy to locate, and improves the convenience and reliability of connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of the high-voltage accelerator of Example 1 of the utility model.

[0033] Figure 2 This is a schematic structural diagram of the high pressure introduction pile head of Example 1 of the utility model.

[0034] Figure 3 Another structural schematic diagram of the high pressure introduction pile head of Example 1 of the utility model.

[0035] Figure 4 This is a schematic structural diagram of the installation tube of Example 1 of the utility model.

[0036] Figure 5 This is a schematic structural diagram of the high pressure introduction pile head of Example 2 of the utility model.

[0037] Figure 6 This is a schematic structural diagram of the high pressure introduction pile head of Example 3 of the utility model.

[0038] Figure 7 This is a schematic structural diagram of the high pressure introduction pile head of Example 4 of the utility model. DETAILED DESCRIPTION

[0039] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments. Example

[0040] In this embodiment, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] See also Figures 1 to 4 This embodiment provides a high-voltage accelerator, which includes a housing 100 , an electrode 101 , and a high-voltage introduction pile head 102 .

[0042] The shell is provided with a high voltage introduction hole, the shell is made of metal material, and the shell cover is grounded after being placed outside the motor.

[0043] The high voltage lead-in pile head 102 includes a first insulating member 1021 , a second insulating member 1022 , an insulating outer cover 1023 and a cable connector 1024 .

[0044] The first insulating member 1023 includes an insulating member body 10231 and an insulating member protrusion 10232 .

[0045] The insulating member protrusion 10232 protrudes from the middle of the insulating member body and has a size that matches the high voltage introduction hole.

[0046] A first mounting hole 10233 is defined at the center of the first insulating member 1023 .

[0047] A mounting groove 10221 matching with the insulating member protrusion 10232 is formed in the middle of the second insulating member 1022 .

[0048] A second mounting hole 10222 is provided at the bottom of the mounting groove.

[0049] The cable connector 1024 is disposed in the first mounting hole and the second mounting hole and fixed by a fixing member.

[0050] One end of the cable connector 1024 is connected to the electrode and the other end is connected to the high voltage cable 103 .

[0051] The insulating cover 1023 includes a mounting cavity 10231 and a cable mounting hole.

[0052] The high-voltage cable is connected to the cable connector in the installation cavity after passing through the cable installation hole.

[0053] The insulating outer cover is fixed on the outer shell by bolts.

[0054] In this embodiment, the inside and the interior refer to the inside of the housing, and the outside and the exterior refer to the exterior of the housing. The inside and the exterior are used to describe the positional relationship, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0055] The distance between the shell and the electrode in the linear accelerator is very narrow, and the shell is an integrated structure. In this case, it is difficult to connect the high-voltage cable to the electrode. The high-voltage introduction pile head of this embodiment can solve this problem.

[0056] The first insulating member is arranged inside the shell, specifically, the insulating member body is arranged inside the shell, the second insulating member is arranged outside the shell, and the insulating cover is installed outside the second insulating member.

[0057] In the specific installation process, after the insulating protrusion of the first insulating member is installed in the high-voltage introduction hole, the outer shell is covered on the internal electrode, and the cable connector is connected through the first installation hole.

[0058] The cable connector 1024 includes a connecting rod 10241 , an elastic member 10242 , and a contact head 10243 .

[0059] The contact head 10243 is spherical and connected to the connecting rod. The elastic member (spring) is sleeved on the connecting rod and is located between the contact head 10243 and the first insulating member 1021 .

[0060] The elastic member applies an elastic force from the shell to the electrode to the contact head, and the outer end of the connecting rod is connected to the high-voltage cable.

[0061] A receiving groove for receiving the contact head is provided at a position on the electrode corresponding to the high voltage introduction hole.

[0062] The shape of the receiving groove matches the shape of the contact head. The receiving groove can be used to change the point contact of the contact head into surface contact.

[0063] The outer surface of the connecting rod 10241 fits with the inner surfaces of the first mounting hole 10233 and the second mounting hole 10222 .

[0064] The cable connector also includes a mounting tube 10244, one end of which is provided with a clamping member 10245 and the other end of which is provided with an external thread.

[0065] A cylindrical countersunk hole 10234 matching with the clamping piece 10245 is provided at the inner top end of the first mounting hole.

[0066] A clamping nut 10223 matching the external thread is provided on the outer side of the second insulating member, and the connecting rod is inserted into the installation tube.

[0067] The first insulating member and the second insulating member can be fixed by using the mounting tube. In other embodiments, the first insulating member and the second insulating member can also be fixed to the housing separately. Preferably, the first insulating member and the second insulating member are fixed by using the mounting tube.

[0068] The first insulating member, the second insulating member and the insulating cover are all made of high-quality materials with extremely high breakdown voltage, such as polyimide, polytetrafluoroethylene, etc. These materials have excellent electrical properties and mechanical strength, can ensure the insulation, stability and safety of the pile head under high-voltage environment, and can also play a certain sealing role.

[0069] The outer end of the connecting rod is welded to the high voltage cable.

[0070] The high pressure introduction pile head of this embodiment has the following advantages:

[0071] Small size: By optimizing the structural design and material selection, the pile head can withstand high voltage while maintaining a small size, making it easy to install and use inside the accelerator.

[0072] Good stability: Made of high-quality materials with high breakdown voltage, it ensures the stability and safety of the pile head in high-voltage environments.

[0073] Easy connection: It solves the connection problem of high-voltage electrode sheet and external power supply that is not easy to locate, and improves the convenience and reliability of connection. Example

[0074] See also Figure 5 This embodiment is basically the same as Embodiment 1, except that:

[0075] The cable connector includes a mounting tube 201. A copper soft wire 202 is provided at a position on the electrode corresponding to the high-voltage introduction hole. The copper soft wire passes through the mounting tube and is connected to the high-voltage cable.

[0076] The installation tube is provided with potting glue, the outer end of the installation tube is provided with external threads, the outer side of the second insulating member is provided with a clamping nut and a parallel cap matching the external threads, and the copper soft wire is fixed between the clamping nut 203 and the parallel cap 204 after passing through the installation tube.

[0077] The copper soft wire is connected to the high voltage cable after being clamped by a cap. Example

[0078] See also Figure 6 This embodiment is basically the same as Embodiment 1, except that:

[0079] The cable connector includes a connecting rod 301 and a metal elastic sheet 302 , one end of the metal elastic sheet is connected to the connecting rod and the other end is in contact with the electrode. Example

[0080] See also Figure 7 This embodiment is basically the same as Embodiment 1, except that:

[0081] The first insulating member 401 is disposed outside the housing, the second insulating member 402 is disposed inside the housing, and the insulating cover is installed outside the first insulating member.

[0082] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A high voltage introduction pile head, used for a high voltage accelerator, characterized in that: The high-voltage accelerator comprises a shell and electrodes, the shell is provided with a high-voltage introduction hole, the high-voltage introduction pile head comprises a first insulating member, a second insulating member, an insulating outer cover and a cable connector, The first insulating member includes an insulating member body and an insulating member protrusion, wherein the insulating member protrusion protrudes from the middle of the insulating member body and has a size matching the high-voltage introduction hole, and a first mounting hole is provided at the center of the first insulating member; A mounting groove matching the protrusion of the insulating member is provided in the middle of the second insulating member, and a second mounting hole is provided at the bottom of the mounting groove; The cable connector is disposed in the first mounting hole and the second mounting hole and fixed by a fixing member, one end of the cable connector is connected to the electrode and the other end is connected to the high-voltage cable; The insulating outer cover comprises an installation cavity and a cable installation hole. The high-voltage cable passes through the cable installation hole and is connected with the cable connector in the installation cavity.

2. The high pressure introduction pile head according to claim 1, characterized in that: The first insulating member is arranged inside the shell, the second insulating member is arranged outside the shell, and the insulating cover is installed outside the second insulating member.

3. The high pressure introduction pile head as claimed in claim 2, characterized in that: The cable connector includes a connecting rod, an elastic member and a contact head, wherein the contact head is spherical and connected to the connecting rod, the elastic member is sleeved on the connecting rod and is located between the contact head and the first insulating member, the elastic member applies an elastic force from the outer shell to the electrode to the contact head, and the outer end of the connecting rod is connected to the high-voltage cable.

4. The high pressure introduction pile head as claimed in claim 3, characterized in that: A receiving groove for receiving the contact head is provided on the electrode at a position corresponding to the high voltage introduction hole, the shape of the receiving groove matches the shape of the contact head, and the outer surface of the connecting rod fits with the inner surfaces of the first mounting hole and the second mounting hole.

5. The high pressure introduction pile head as claimed in claim 4, characterized in that: The cable connector also includes a mounting tube, one end of which is provided with a clamping piece and the other end is provided with an external thread, the inner top end of the first mounting hole is provided with a cylindrical countersunk hole matching the clamping piece, the outer side of the second insulating piece is provided with a locking nut matching the external thread, and the connecting rod is passed through the mounting tube.

6. The high pressure introduction pile head as claimed in claim 3, characterized in that: The outer end of the connecting rod is welded to the high voltage cable.

7. The high pressure introduction pile head as claimed in claim 2, characterized in that: The cable connector includes a mounting tube, and a copper soft wire is provided at a position on the electrode corresponding to the high-voltage introduction hole. The copper soft wire passes through the mounting tube and is connected to the high-voltage cable.

8. The high pressure introduction pile head according to claim 7, characterized in that: The installation tube is provided with potting glue, the outer end of the installation tube is provided with external threads, the outer side of the second insulating member is provided with a clamping nut and a parallel cap matching the external threads, and the copper soft wire is fixed between the clamping nut and the parallel cap after passing through the installation tube.

9. The high pressure introduction pile head according to claim 2, characterized in that: The cable connector includes a connecting rod and a metal elastic sheet, one end of the metal elastic sheet is connected to the connecting rod and the other end is in contact with the electrode.

10. A high voltage accelerator, characterized in that: The high-voltage accelerator system comprises the high-voltage introduction pile head as claimed in any one of claims 1 to 9.

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