Bidirectional silicon controlled rectifier stepless speed regulation module
By designing a protective housing and limiting structure for the bidirectional thyristor speed control module, the problems of easy equipment damage and accidental knob rotation were solved, achieving higher reliability and service life.
Patent Information
- Application Number
- CN202422653094.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing bidirectional thyristor speed controllers are prone to damage due to inadequate protection structures, and the speed control knob is prone to accidental rotation.
A bidirectional thyristor stepless speed control module was designed. It uses a protective shell to protect the internal electronic components, and uses limit blocks and protective shell structure to prevent the knob from being turned accidentally. At the same time, heat dissipation fins are used to dissipate heat.
It effectively protects internal electronic components from damage and prevents accidental rotation of knobs, thus improving the reliability and service life of the equipment.
Smart Images
Figure CN223553556U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thyristor speed regulation technology, specifically a bidirectional thyristor stepless speed regulation module. Background Technology
[0002] A thyristor is a high-power electrical component. It boasts advantages such as small size, high efficiency, and long lifespan. In automatic control systems, it serves as a high-power driver, enabling the control of high-power equipment with low-power controls. It is widely used in AC / DC motor speed control systems, power regulation systems, and servo systems. Thyristors are divided into unidirectional and bidirectional types. A bidirectional thyristor, also called a three-terminal bidirectional thyristor, is abbreviated as TRIAC. Structurally, a bidirectional thyristor is equivalent to two unidirectional thyristors connected in reverse. This type of thyristor has bidirectional conduction capability, and its on / off state is determined by the control electrode G. Applying a positive (or negative) pulse to the control electrode G will enable forward (or reverse) conduction. The advantage of this device is its simple control circuit and the absence of reverse withstand voltage issues, making it particularly suitable for use as an AC contactless switch. However, most current bidirectional thyristor speed controllers lack protective structures, making the electrical components susceptible to damage from impacts. Furthermore, the speed control knob is prone to accidental rotation. Therefore, we propose a bidirectional thyristor stepless speed control module. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a bidirectional thyristor stepless speed regulation module. The installed shell can protect the electronic components inside the shell, and the protective shell can protect the pointer knob to prevent the pointer knob from being accidentally rotated due to bumps. This can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a bidirectional thyristor stepless speed regulation module, comprising a housing and a thyristor body;
[0005] Housing: Mounting brackets are fixed on both the left and right sides. A circuit board is installed on the bottom surface inside the housing. A speed regulating element is installed on the front side of the top surface of the circuit board. A terminal block is provided on the left side of the top surface of the circuit board. The thyristor is installed on the top surface of the circuit board. A locking groove is opened on the top surface of the front side of the housing. A protective unit is provided on the top surface of the housing.
[0006] It also includes heat dissipation fins, which are installed on the rear side of the thyristor and are engaged with the through groove on the rear side of the housing.
[0007] The speed control element on the top of the rotating circuit board, in conjunction with the silicon controlled rectifier (SCR), regulates the speed of externally connected electrical components, while the heat dissipation fins dissipate the heat generated during operation, thus mitigating the impact of heat buildup on electronic components.
[0008] Furthermore, the protective unit includes a limiting block, a housing, a locking block, an insert plate, and a locking hole. Limiting blocks are fixed on both the front and rear sides of the housing. The limiting blocks are slidably connected to the limiting groove inside the housing. An insert plate is fixed on the front side of the housing. A locking block is fixed on the front side of the insert plate. The locking hole is opened on the front side of the housing. The limiting blocks slide with the limiting groove to install the housing on the top surface of the housing. The locking block is inserted into the locking hole to protect the electronic components inside the housing.
[0009] Furthermore, the protective unit also includes a locking frame, a spring, a bracket, a protective shell, and a sliding groove. The sliding groove is located on the front side of the shell, and the protective shell is slidably installed inside the sliding groove. The bracket is fixed inside the protective shell, and the spring is installed inside the bracket. The locking frame is fixed to the front end of the spring, and the locking frame is slidably connected to the through hole on the rear side of the bracket. When the protective shell inside the sliding groove slides to a suitable position, the spring extends and causes the locking frame to engage inside the locking groove. This protects the pointer knob from accidental rotation due to impacts.
[0010] Furthermore, it also includes a hygrometer and a drying box. The hygrometer is installed inside a groove on the left side of the outer casing, and the drying box is fixed to the top surface inside the outer casing. The drying box is convenient for placing dehumidifying bags, and together with the hygrometer, it is convenient for personnel to detect the humidity inside the casing to prevent high humidity from affecting subsequent use.
[0011] Furthermore, it also includes a pointer knob and a dial. The dial is fixed to the front side of the housing, and the pointer knob is installed on the front end of the speed regulating element. The rear side of the pointer knob fits against the front side of the dial. The pointer knob, together with the dial, facilitates precise adjustment by the operator.
[0012] Furthermore, it also includes an identification frame and an information card. The identification frame is fixed to the left side of the outer casing, and the information card is inserted inside the identification frame. The information card inside the identification frame facilitates the recording of the wiring harness information connected to the terminal block, so as to facilitate personnel to check it during subsequent maintenance.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This bidirectional thyristor stepless speed regulation module has the following advantages:
[0014] 1. The speed regulation element on the top of the circuit board, in conjunction with the thyristor, is used to adjust the speed of externally connected electrical components. The heat dissipation fins can dissipate the heat generated during operation, thus preventing heat buildup from affecting the electronic components.
[0015] 2. The outer casing is installed on the top surface of the housing by sliding the limiting block and the limiting groove. The locking block is inserted into the locking hole to protect the electronic components inside the housing.
[0016] 3. Slide the protective shell inside the slide to the appropriate position, and the spring will extend to make the locking bracket lock into the locking groove. This can protect the pointer knob and prevent it from being accidentally turned due to bumps. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;
[0019] Figure 3 This is a schematic diagram of the protective unit structure of this utility model.
[0020] In the diagram: 1. Housing, 2. Protective unit, 21. Limiting block, 22. Outer shell, 23. Locking block, 24. Insert plate, 25. Locking hole, 26. Locking bracket, 27. Spring, 28. Bracket, 29. Protective shell, 210. Slide groove, 3. Mounting bracket, 4. Circuit board, 5. Speed control element, 6. Terminal block, 7. Thyristor, 8. Heat sink fins, 9. Hygrometer, 10. Drying box, 11. Pointer knob, 12. Dial, 13. Identifier bracket, 14. Information card. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-3 This embodiment provides a technical solution: a bidirectional thyristor stepless speed regulation module, including a housing 1 and a thyristor body 7;
[0023] Housing 1: Mounting brackets 3 are fixed on both the left and right sides. A circuit board 4 is mounted on the bottom surface inside the housing 1. A speed regulating element 5 is mounted on the front side of the top surface of the circuit board 4. A terminal block 6 is provided on the left side of the top surface of the circuit board 4. A silicon controlled rectifier 7 is mounted on the top surface of the circuit board 4. A locking groove is opened on the top surface of the front side of the housing 1. A protective unit 2 is provided on the top surface of the housing 1. The protective unit 2 includes a limiting block 21, a housing 22, a locking block 23, an insert plate 24, and a locking hole 25. Limiting blocks 21 are fixed on both the front and rear sides of the housing 22. The limiting blocks 21 are slidably connected to the limiting groove inside the housing 1. An insert plate 24 is fixed on the front side of the housing 22. A locking block 23 is fixed on the front side of the insert plate 24. The locking hole 25 is opened on the front side of the housing 1. The limiting blocks 21 slide with the limiting groove to install the housing 22 on the housing 1. On the top surface, the locking block 23 is inserted into the locking hole 25 to protect the electronic components inside the housing 1. The protective unit 2 also includes a locking frame 26, a spring 27, a bracket 28, a protective shell 29, and a slide groove 210. The slide groove 210 is opened on the front side of the housing 1. The protective shell 29 is slidably installed inside the slide groove 210. The bracket 28 is fixed inside the protective shell 29. The spring 27 is installed inside the bracket 28. The locking frame 26 is fixed to the front end of the spring 27. The locking frame 26 is slidably connected to the through hole on the rear side of the bracket 28. When the protective shell 29 inside the slide groove 210 slides to the appropriate position, the spring 27 extends and the locking frame 26 is inserted into the locking groove. This can protect the pointer knob 11 and prevent the pointer knob 11 from being bumped and accidentally rotated.
[0024] The system also includes heat dissipation fins 8, which are installed on the rear side of the SCR 7. The heat dissipation fins 8 engage with a through slot on the rear side of the housing 1. A speed control element 5 on the top surface of the rotating circuit board 4, in conjunction with the SCR 7, regulates the speed of externally connected electrical components. The heat dissipation fins 8 dissipate heat generated during operation, preventing heat buildup from affecting electronic components. The system also includes a hygrometer 9 and a drying box 10. The hygrometer 9 is installed inside a groove on the left side of the housing 22. The drying box 10 is fixed to the top surface inside the housing 22. The drying box 10 allows for easy placement of dehumidifying bags, and the hygrometer 9 facilitates easy cleaning of the housing 1. The internal humidity is monitored to prevent high humidity from affecting subsequent use. It also includes a pointer knob 11 and a dial 12. The dial 12 is fixed to the front side of the housing 1, and the pointer knob 11 is installed on the front end of the speed control element 5. The rear side of the pointer knob 11 fits against the front side of the dial 12. The pointer knob 11 and the dial 12 facilitate precise adjustment by personnel. It also includes an identification frame 13 and an information card 14. The identification frame 13 is fixed to the left side of the housing 22. The information card 14 is inserted inside the identification frame 13. The information card 14 inside the identification frame 13 facilitates the recording of the wiring harness information connected to the terminal block 6, so as to facilitate personnel to check it during subsequent maintenance.
[0025] The working principle of the bidirectional thyristor stepless speed regulation module provided by this utility model is as follows: First, the circuit board 4 is installed inside the housing 1. External electrical components are connected to the circuit board 4 through the terminal block 6. The information card 14 inside the identification frame 13 facilitates the recording of the wiring harness information connected to the terminal block 6 for easy maintenance and inspection. Rotating the speed regulation element 5 on the top surface of the circuit board 4, in conjunction with the thyristor body 7, regulates the speed of the externally connected electrical components. The pointer knob 11, in conjunction with the scale 12, facilitates precise adjustment by personnel. The heat dissipation fins 8 can dissipate the heat generated during operation to solve the problem of heat accumulation affecting electronic components. The limiting block 21 slides with the limiting groove to install the outer shell 22 on the top surface of the housing 1. The locking block 23 is inserted into the locking hole 25 to protect the electronic components inside the housing 1. The protective shell 29 inside the slide groove 210 slides to the appropriate position, and the spring 27 extends to lock the locking frame 26 into the locking groove. This protects the pointer knob 11 to prevent it from being accidentally rotated due to impact.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A bidirectional thyristor stepless speed control module, characterized in that: Includes a housing (1) and a thyristor body (7); Housing (1): Mounting brackets (3) are fixed on both the left and right sides. A circuit board (4) is installed on the bottom surface inside the housing (1). A speed regulating element (5) is installed on the front side of the top surface of the circuit board (4). A terminal block (6) is provided on the left side of the top surface of the circuit board (4). The thyristor (7) is installed on the top surface of the circuit board (4). A locking groove is opened on the top surface of the front side of the housing (1). A protective unit (2) is provided on the top surface of the housing (1). It also includes heat dissipation fins (8), which are installed on the rear side of the thyristor body (7) and are engaged with the through groove on the rear side of the housing (1).
2. The bidirectional thyristor stepless speed regulation module according to claim 1, characterized in that: The protective unit (2) includes a limiting block (21), a shell (22), a locking block (23), a insert plate (24), and a locking hole (25). The limiting blocks (21) are fixed on both the front and rear sides of the shell (22). The limiting blocks (21) are slidably connected to the limiting groove inside the shell (1). The insert plate (24) is fixed on the front side of the shell (22). The locking block (23) is fixed on the front side of the insert plate (24). The locking hole (25) is opened on the front side of the shell (1).
3. The bidirectional thyristor stepless speed regulation module according to claim 1, characterized in that: The protective unit (2) also includes a locking frame (26), a spring (27), a bracket (28), a protective shell (29), and a slide groove (210). The slide groove (210) is opened on the front side of the shell (1). The protective shell (29) is slidably installed inside the slide groove (210). The bracket (28) is fixed inside the protective shell (29). The spring (27) is installed inside the bracket (28). The locking frame (26) is fixed to the front end of the spring (27). The locking frame (26) is slidably connected to the through hole on the rear side of the bracket (28).
4. The bidirectional thyristor stepless speed regulation module according to claim 2, characterized in that: It also includes a hygrometer (9) and a drying box (10), the hygrometer (9) being installed inside a groove on the left side of the housing (22), and the drying box (10) being fixed to the top surface inside the housing (22).
5. The bidirectional thyristor stepless speed control module according to claim 1, characterized in that: It also includes a pointer knob (11) and a dial (12), the dial (12) being fixed to the front side of the housing (1), the pointer knob (11) being mounted on the front end of the speed regulating element (5), and the rear side of the pointer knob (11) being in contact with the front side of the dial (12).
6. The bidirectional thyristor stepless speed regulation module according to claim 2, characterized in that: It also includes an identification frame (13) and an information card (14). The identification frame (13) is fixed to the left side of the outer casing (22), and the information card (14) is inserted inside the identification frame (13).