Automatic control device for bus voltage of high-voltage generator

Abstract

The utility model discloses an automatic bus voltage control device for a high-voltage generator, which relates to the technical field of high-voltage generators and comprises a first limiting shell, the inner wall of the first limiting shell is fixedly connected with the outer circumferential surface of a first limiting ring, and the middle of the first limiting ring is slidably connected with the outer circumferential surface of a first middle shaft. The outer circumferential face of the first middle shaft is fixedly connected with the middle of the first blocking ring, one end of the first middle shaft is fixedly connected with one side of the first limiting module, and one side of the first limiting module is fixedly connected with one end of the second spring. Through the arrangement of the first limiting shell, the first limiting ring, the first middle shaft, the first blocking ring, the first spring, a first limiting module, a second spring, an annular module, a second blocking ring, a first pull block, a second limiting shell, a second limiting ring, a second middle shaft, a third spring and a first position control block, emergency repair can be carried out in time when a fault occurs; therefore, the normal use of the control device can be quickly recovered.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage generators, in particular to a bus voltage automatic control device for a high-voltage generator. Background Art

[0002] A high voltage generator, also known as a DC high voltage generator, is a power supply device used to generate high voltage. High voltage generators are mainly used for insulation and leakage detection. Their core function is to boost low voltage to high voltage, which is used to create high electric fields, strong currents or strong magnetic fields. High voltage generators are often used in scientific research and production fields, and have a wide range of applications, including static elimination, X-ray drive, etc.

[0003] After searching, a Chinese patent with publication number CN205681117U discloses a bus voltage control device, which has an IGBT tube Q1, a diode Q2, and a power resistor R. The E pole of the IGBT tube Q1 has a lead-out terminal VB, which is used to connect to the negative pole of the bus. The C pole of the IGBT tube Q1 has a lead-out terminal HR, which is connected in series with the circuit breaker QF and the power resistor R and then connected to the positive pole of the bus. The C pole of the IGBT tube Q1 is connected to the negative pole of the diode Q2, and the positive pole of the diode Q2 is connected to the lead-out terminal VD, which is used to connect to the positive pole of the bus. The IGBT tube Q1 is controlled to be turned on and off by a controller; when the bus voltage is lower than the threshold voltage, the IGBT tube Q1 is not turned on; when the bus voltage is higher than the threshold voltage, the controller outputs a corresponding PWM signal to turn on the IGBT tube Q1. The utility model can control the bus voltage below the threshold voltage.

[0004] Although the above scheme can control the bus voltage below the threshold voltage, the bus voltage control device in the above patent is difficult to repair in time when a fault occurs. During the long-term use of the bus, wear and tear will inevitably occur, resulting in voltage instability. For this reason, we provide a high-voltage generator bus voltage automatic control device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that it is difficult to repair the fault in time when the fault occurs, and provides a high voltage generator bus voltage automatic control device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-voltage generator bus voltage automatic control device, comprising a first limit shell, the inner wall of the first limit shell is fixedly connected to the outer circumferential surface of the first limit ring, the middle part of the first limit ring is slidably connected to the outer circumferential surface of the first central axis, the outer circumferential surface of the first central axis is fixedly connected to the middle part of the first resistance ring, one end of the first central axis is fixedly connected to one side of the first limit module, one side of the first limit module is fixedly connected to one end of the second spring, the other end of the second spring is fixedly connected to one side of the annular module, the middle part of the annular module is slidably connected to the outer circumferential surface of the first central axis, and the close fit between the components can effectively achieve the effect of timely repair in the event of a fault, thereby ensuring the normal progress of subsequent projects.

[0007] Furthermore, one side of the first resistance ring is fixedly connected to one end of the first spring, and the other end of the first spring is fixedly connected to one side of the inner wall of the first limiting shell. The setting of the first limiting shell can effectively limit other components.

[0008] Furthermore, the outer circumferential surface of the first central axis is fixedly connected to the middle of the second resistance ring, and the other end of the first central axis is fixedly connected to a first pull block. The provision of the first pull block greatly facilitates use by staff.

[0009] Furthermore, the outer circumferential surface of the annular module is slidably connected to the inner wall of the second limiting shell, the inner wall of the second limiting shell is fixedly connected with a second limiting ring, the middle part of the second limiting ring is slidably connected to the outer circumferential surface of the second central axis, one end of the second central axis is fixedly connected to the top of the first control block, and the setting of the first control block can effectively block other components, thereby achieving a limiting effect.

[0010] Furthermore, the bottom of the second limiting ring is fixedly connected to the top of the third spring, the bottom of the third spring is fixedly connected to the top of the first control block, and the third spring is sleeved on the outer circumferential surface of the second central axis. The setting of the second central axis can ensure that the movement of subsequent components always remains stable.

[0011] Furthermore, one side of the second limiting shell is fixedly connected to one side of the protective shell, the groove on the top of the protective shell is slidably connected to the outer circumferential surface of the third central axis, and the top of the third central axis is fixedly connected with a special-shaped pull head. The setting of the special-shaped pull head can be more convenient for staff to use and save effort.

[0012] Furthermore, the bottom of the third central axis is fixedly connected to the top of the first push plate, the top of the first push plate is fixedly connected to one end of the fourth spring, and the other end of the fourth spring is fixedly connected to the top of the inner wall of the protective shell. The setting of the protective shell can protect the internal components and avoid being affected by external conditions.

[0013] Furthermore, a busbar separation hole is provided on the top of the protective shell, a heat dissipation fin is fixedly connected to one side of the protective shell, and a generator body is placed at the bottom of the inner wall of the protective shell. The generator body is a prior art and will not be described in detail.

[0014] Compared with the prior art, the high voltage generator bus voltage automatic control device has the following features:

[0015] Beneficial effects:

[0016] 1. The utility model can carry out emergency repairs in time when a fault occurs through the arrangement of the first limit shell, the first limit ring, the first central axis, the first resistance ring, the first spring, the first limit module, the second spring, the annular module, the second resistance ring, the first pull block, the second limit shell, the second limit ring, the second central axis, the third spring, and the first control block, so that the control device can be quickly restored to normal use.

[0017] 2. The utility model can effectively separate the busbars through the arrangement of the protective shell, the third central axis, the special-shaped pull head, the first push plate, the fourth spring, the busbar separation hole, the heat dissipation fins, and the generator body, thereby preventing mutual interference. At the same time, it can greatly protect the generator body so that the generator body can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the second limiting housing of the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure inside the first limiting housing of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure inside the protective shell of the utility model.

[0022] In the figure: 1. first limiting shell; 2. first limiting ring; 3. first central axis; 4. first blocking ring; 5. first spring; 6. first limiting module; 7. second spring; 8. annular module; 9. second blocking ring; 10. first pull block; 11. second limiting shell; 12. second limiting ring; 13. second central axis; 14. third spring; 15. first control block; 16. protective shell; 17. third central axis; 18. special-shaped pull head; 19. first push plate; 20. fourth spring; 21. busbar separation hole; 22. cooling fins; 23. generator body. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] See also Figure 3 This embodiment proposes a high-voltage generator bus voltage automatic control device, including a first limiting shell 1. The setting of the first limiting shell 1 can make the control device form a relatively closed space, thereby ensuring that the internal components are not easily affected by external factors. The inner wall of the first limiting shell 1 is fixedly connected to the outer circumferential surface of the first limiting ring 2. The setting of the first limiting ring 2 can effectively ensure the stability of subsequent components during movement.

[0025] See also Figure 3 The middle part of the first limit ring 2 is slidably connected to the outer circumference of the first central axis 3. The setting of the first central axis 3 can effectively drive multiple other components to move. The outer circumference of the first central axis 3 is fixedly connected to the middle part of the second resistance ring 9. The setting of the second resistance ring 9 can prevent other components from moving too much. The other end of the first central axis 3 is fixedly connected to the first pull block 10. The setting of the first pull block 10 makes it convenient to use the control device.

[0026] See also Figure 3 The outer circumferential surface of the first central axis 3 is fixedly connected to the middle part of the first resistance ring 4, one side of the first resistance ring 4 is fixedly connected to one end of the first spring 5, and the other end of the first spring 5 is fixedly connected to one side of the inner wall of the first limiting shell 1. The cooperation between the first resistance ring 4 and the first spring 5, utilizing the elasticity of the first spring 5 itself, can effectively and quickly reset the first central axis 3.

[0027] See also Figure 3 One end of the first central axis 3 is fixedly connected to one side of the first limiting module 6, one side of the first limiting module 6 is fixedly connected to one end of the second spring 7, the setting of the second spring 7, utilizing the elasticity of the second spring 7 itself, can effectively push the annular module 8 to move, the other end of the second spring 7 is fixedly connected to one side of the annular module 8, the outer circumferential surface of the annular module 8 is slidably connected to the inner wall of the second limiting shell 11, the first limiting module 6 and the annular module 8 can effectively utilize their own arc slope to control other components.

[0028] See also Figure 1 and Figure 4 One side of the second limiting shell 11 is fixedly connected to one side of the protective shell 16. A busbar separation hole 21 is provided on the top of the protective shell 16. The setting of the busbar separation hole 21 can separate multiple busbars. One side of the protective shell 16 is fixedly connected to a heat dissipation fin 22. The setting of the heat dissipation fin 22 can effectively achieve heat dissipation. A generator body 23 is placed at the bottom of the inner wall of the protective shell 16. The generator body 23 is a prior art and will not be described in detail.

[0029] See also Figure 4 The groove at the top of the protective shell 16 is slidably connected to the outer circumferential surface of the third central axis 17, the bottom of the third central axis 17 is fixedly connected to the top of the first push plate 19, the top of the first push plate 19 is fixedly connected to one end of the fourth spring 20, and the other end of the fourth spring 20 is fixedly connected to the top of the inner wall of the protective shell 16. The elasticity of the fourth spring 20 itself can effectively push the first push plate 19 to move, so that the first push plate 19 is in close contact with the top of the generator body 23, thereby forming a limiting effect.

[0030] See also Figure 4 The top of the third central axis 17 is fixedly connected with a special-shaped pull head 18. The setting of the special-shaped pull head 18 is more convenient for the staff to use, thereby achieving the effect of convenient disassembly and assembly of the generator body 23. The inner wall of the second limiting shell 11 is fixedly connected with a second limiting ring 12. The setting of the second limiting ring 12 can effectively limit the second central axis 13.

[0031] See also Figure 3 The bottom of the second limiting ring 12 is fixedly connected to the top of the third spring 14, and the bottom of the third spring 14 is fixedly connected to the top of the first control block 15. The purpose of setting the third spring 14 is to utilize the elastic characteristics of the third spring 14 itself to effectively promote the movement of the first control block 15.

[0032] See also Figure 3 The third spring 14 is sleeved on the outer circumferential surface of the second central axis 13, the middle part of the second limiting ring 12 is slidably connected to the outer circumferential surface of the second central axis 13, and one end of the second central axis 13 is fixedly connected to the top of the first control block 15. The setting of the second central axis 13 can ensure that the first control block 15 always remains stable during the movement, and the middle part of the annular module 8 is slidably connected to the outer circumferential surface of the first central axis 3.

[0033] Working principle: First, external force is used to push the generator body 23 to slide in the protective shell 16, so that the generator body 23 reaches the specified position and stops. Under the action of the elasticity of the fourth spring 20 itself, the third central axis 17 and the special-shaped pull head 18 on the first push plate 19 will be driven to move, so that the first push plate 19 is in close contact with the generator body 23, thereby achieving a limiting effect on the generator body 23, and then the first limiting shell 1 is contacted with the second limiting shell 11 by external force again, and the first limiting module 6 slides in the groove on one side of the second limiting shell 11. When the first limiting module 6 is initially in contact with the first control block 15, the elasticity of the third spring 14 itself will cause the first control block 15 to gradually shrink. Finally, the elastic force of the third spring 14 is used again to reset the first control block 15, thereby making the first limiting shell 1 and the second limiting shell 11 are tightly combined. When emergency repair is needed, the first pulling block 10 is pushed by external force, so that the first central axis 3 drives the first limiting module 6, the second spring 7, the annular module 8, the second resistance ring 9, and the first resistance ring 4 thereon to move synchronously. When the annular module 8 initially contacts the first control block 15, the first control block 15 still contracts. At this time, the annular module 8 is in the groove on one side of the first limiting module 6, and the first spring 5 and the second spring 7 are in a compressed state. Under the action of the shape of the annular module 8 itself and the elastic force of the first spring 5 itself, the first resistance ring 4 will drive the first limiting module 6 and the annular module 8 on the first central axis 3 to move synchronously, so that the first limiting shell 1 and the second limiting shell 11 are separated, so that timely emergency repairs can be carried out when a fault occurs to ensure the normal operation of the control device.

Claims

1. A high voltage generator bus voltage automatic control device, comprising a first limiting housing (1), characterized in that: The inner wall of the first limiting shell (1) is fixedly connected to the outer circumferential surface of the first limiting ring (2), the middle part of the first limiting ring (2) is slidably connected to the outer circumferential surface of the first central axis (3), the outer circumferential surface of the first central axis (3) is fixedly connected to the middle part of the first resistance ring (4), one end of the first central axis (3) is fixedly connected to one side of the first limiting module (6), one side of the first limiting module (6) is fixedly connected to one end of the second spring (7), the other end of the second spring (7) is fixedly connected to one side of the annular module (8), and the middle part of the annular module (8) is slidably connected to the outer circumferential surface of the first central axis (3).

2. The high voltage generator bus voltage automatic control device according to claim 1 is characterized in that: One side of the first resistance ring (4) is fixedly connected to one end of the first spring (5), and the other end of the first spring (5) is fixedly connected to one side of the inner wall of the first limit housing (1).

3. The high voltage generator bus voltage automatic control device according to claim 1 is characterized in that: The outer circumferential surface of the first central axis (3) is fixedly connected to the middle of the second resistance ring (9), and the other end of the first central axis (3) is fixedly connected to a first pulling block (10).

4. The high voltage generator bus voltage automatic control device according to claim 1, characterized in that: The outer circumferential surface of the annular module (8) is slidably connected to the inner wall of the second limiting shell (11), the inner wall of the second limiting shell (11) is fixedly connected with a second limiting ring (12), the middle part of the second limiting ring (12) is slidably connected to the outer circumferential surface of the second central axis (13), and one end of the second central axis (13) is fixedly connected to the top of the first control block (15).

5. The high voltage generator bus voltage automatic control device according to claim 4 is characterized in that: The bottom of the second limiting ring (12) is fixedly connected to the top of the third spring (14), the bottom of the third spring (14) is fixedly connected to the top of the first control block (15), and the third spring (14) is sleeved on the outer circumferential surface of the second central axis (13).

6. The high voltage generator bus voltage automatic control device according to claim 5, characterized in that: One side of the second limiting shell (11) is fixedly connected to one side of the protective shell (16), the groove on the top of the protective shell (16) is slidably connected to the outer circumferential surface of the third central axis (17), and the top of the third central axis (17) is fixedly connected with a special-shaped pull head (18).

7. The high voltage generator bus voltage automatic control device according to claim 6 is characterized in that: The bottom of the third central axis (17) is fixedly connected to the top of the first push plate (19), the top of the first push plate (19) is fixedly connected to one end of the fourth spring (20), and the other end of the fourth spring (20) is fixedly connected to the top of the inner wall of the protective shell (16).

8. The high voltage generator bus voltage automatic control device according to claim 6, characterized in that: A busbar separation hole (21) is provided at the top of the protective shell (16), a heat dissipation fin (22) is fixedly connected to one side of the protective shell (16), and a generator body (23) is placed at the bottom of the inner wall of the protective shell (16).

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