High-reliability transient voltage suppression diode
By designing a combined structure of top cover, bottom cover, clamping block, fixing post and heat sink, the problem of transient voltage suppression diode falling off during transportation and installation was solved, and heat dissipation efficiency was improved and service life was extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-31
AI Technical Summary
Existing transient voltage suppressor diodes are prone to falling off during transportation and installation, which can damage the chip and result in poor heat dissipation, affecting their lifespan.
A structure including a top cover, a bottom cover, a clamping block, a fixing post, a spring, a connecting plate, and a heat sink is designed. Stable fixation is achieved through the clamping of the clamping block and the elastic recovery of the spring, and heat dissipation efficiency is improved through the connecting plate and the heat sink.
This technology ensures stable mounting of diodes during transportation, preventing damage, improving heat dissipation, and extending service life.
Smart Images

Figure CN224069107U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of transient voltage suppression diodes, and in particular to a highly reliable transient voltage suppression diode. Background Technology
[0002] A transient voltage suppressor diode is a high-efficiency protection device in the form of a diode. It can clamp the voltage across its terminals to a predetermined value in a very short time (usually on the nanosecond level) to prevent sensitive components in electronic equipment from being damaged by transient high voltages such as operational overvoltages, electrostatic discharges, and lightning strikes, thereby protecting the circuit.
[0003] Regarding the aforementioned technologies, the inventors have discovered the following defects: In the prior art, transient voltage suppressor diodes are quite important, so a protective shell is required for them during transportation. If the external protective shell cannot properly secure and clamp them, the transient voltage suppressor diode may fall off during transportation or installation, and the TVS may shake and collide, easily causing damage to the TVS chip. Utility Model Content
[0004] To prevent damage to the diode during transportation, this application provides a highly reliable transient voltage suppression diode.
[0005] This application provides a high-reliability transient voltage suppression diode, which adopts the following technical solution: It includes a main body, a top cover on top of the main body, an assembly groove on the left side of the top cover, the inner wall of the assembly groove contacting the outer wall of the main body, a bottom cover contacting the bottom of the top cover, a buckle fixedly connected to the front of the top cover, a clamping block I inside the bottom cover, the bottom of clamping block I contacting the top of the main body, a fixing post on the front of clamping block I, a spring I sleeved on the outer wall of the fixing post, a clamping block II below the spring I, the top of clamping block II contacting the bottom of the main body, a fixing block fixedly connected to the bottom of the fixing post, and a spring II on the front of the fixing block.
[0006] Optionally, the top of the top cover has a connecting groove, the inner wall of the connecting groove contacts a heat dissipation plate, the bottom of the heat dissipation plate is fixedly connected to a connecting plate, the outer wall of the connecting plate is fixedly connected to the top of the inner wall of the top cover, and the bottom of the connecting plate is fixedly connected to a contact plate.
[0007] Optionally, the bottom of the contact plate contacts the top of the main body, the bottom of the connecting plate is fixedly connected to the top of the fixing column, the number of heat dissipation plates is several, the several heat dissipation plates are arranged in a horizontal array, the number of connecting plates is two, the two connecting plates are arranged symmetrically, the number of contact plates is two, the two contact plates are arranged symmetrically with the main body as the center.
[0008] Optionally, a limiting plate is fixedly connected to the front of the clamping block, a sliding hole is provided on the top of the limiting plate, the inner wall of the sliding hole is in contact with the outer wall of the fixing column, the bottom of the spring is fixedly connected to the top of the limiting plate, the top of the spring is fixedly connected to the bottom of the connecting plate, and a pulley moving block is in contact with the bottom of the fixing block.
[0009] Optionally, the left side of the pulley moving block is fixedly connected to the right side of the clamping block, a moving rod is fixedly connected to the front of the pulley moving block, and a limit ring is fixedly connected to the bottom of the inner wall of the bottom cover.
[0010] Optionally, the inner wall of the limiting ring is slidably connected to the outer wall of the moving rod, the front of the second spring is fixedly connected to the back of the limiting ring, and the back of the second spring is fixedly connected to the front of the pulley moving block.
[0011] Optionally, a baffle is fixedly connected to the bottom of the inner wall of the bottom cover, the front of the baffle is in contact with the back of the fixing block, and there are several clamping blocks, which are symmetrically arranged around the main body.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] 1. This utility model incorporates components such as a spring, a fixing block, and clamping blocks. Moving the fixing block downwards pushes the clamping blocks towards the main body until several clamping blocks clamp and fix the bottom of the main body. Simultaneously, the clamping blocks clamp the top of the main body and reinforce it under the action of the spring. After opening the top cover, the clamping blocks spring back to their original position, facilitating disassembly of the main body. This device not only allows for easy disassembly when a malfunction occurs but also ensures more stable fixation during transportation, preventing damage to the TVS chip caused by the transient voltage suppression diode falling during transport or installation.
[0014] 2. This utility model incorporates components such as a connecting plate, a heat dissipation plate, and a contact plate. The heat generated by the main body is transferred to the connecting plate through contact with the top and bottom of the main body via two contact plates. Several heat dissipation plates are fixed above the connecting plate, quickly dissipating the heat generated by the main body. Furthermore, the brass construction of the connecting plate, heat dissipation plate, and contact plate enhances heat dissipation. Additionally, the main body and top cover can be disassembled after opening, allowing for repeated use, thus improving heat dissipation, extending the main body's lifespan, and preventing damage due to overheating. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0016] Figure 2 This is a schematic diagram of the connecting plate in an embodiment of this application;
[0017] Figure 3 This is a schematic diagram of the structure of the fixed column in the embodiment of this application;
[0018] Figure 4 This is a schematic diagram of the structure of clamping block two in the embodiment of this application.
[0019] Reference numerals: 1. Main body; 11. Top cover; 111. Bottom cover; 112. Assembly slot; 12. Buckle; 2. Connecting plate; 21. Heat dissipation plate; 211. Contact plate; 22. Connecting slot; 23. Fixing column; 3. Clamping block one; 31. Limiting plate; 311. Spring one; 32. Fixing block; 33. Limiting ring; 331. Moving rod; 332. Spring two; 34. Pulley moving block; 341. Clamping block two; 35. Baffle. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0021] This application discloses a high-reliability transient voltage suppression diode. For example... Figure 1 , Figure 3 , Figure 4 As shown, the device includes a main body 1, a top cover 11 on the top of the main body 1, an assembly groove 112 on the left side of the top cover 11, the inner wall of the assembly groove 112 is in contact with the outer wall of the main body 1, the bottom of the top cover 11 is in contact with a bottom cover 111, a buckle 12 is fixedly connected to the front of the top cover 11, a clamping block 3 is provided inside the bottom cover 111, the bottom of the clamping block 3 is in contact with the top of the main body 1, and a fixing post 23 is provided on the front of the clamping block 3.
[0022] In this embodiment, a spring 311 is sleeved on the outer wall of the fixing column 23. The spring 311 allows the clamping block 3 to rebound after the top cover 11 is opened, so that the device can be reused repeatedly. A clamping block 341 is provided below the spring 311. The top of the clamping block 341 contacts the bottom of the main body 1. A fixing block 32 is fixedly connected to the bottom of the fixing column 23. A spring 332 is provided on the front of the fixing block 32.
[0023] Please see Figure 4As shown, the left side of the pulley moving block 34 is fixedly connected to the right side of the clamping block 341. The pulley set on the top of the pulley moving block 34 can effectively reduce the friction between its top and the bottom of the fixed block 32, thereby improving the service life of the device. The front of the pulley moving block 34 is fixedly connected to the moving rod 331, and the bottom of the inner wall of the bottom cover 111 is fixedly connected to the limit ring 33.
[0024] Please see Figure 4 As shown, a baffle 35 is fixedly connected to the bottom of the inner wall of the bottom cover 111. The front of the baffle 35 contacts the back of the fixing block 32. The bottom of the fixing block 32 is set with an inclined surface, so that it can push the pulley moving block 34 to move towards the main body 1 while moving downward, so that it can drive the clamping block 341 to clamp and fix the main body 1. There are several clamping blocks 341, and the several clamping blocks 341 are symmetrically arranged with the main body 1 as the center.
[0025] Please see Figure 2 As shown, the bottom of the contact plate 211 is in contact with the top of the main body 1, the bottom of the connecting plate 2 is fixedly connected to the top of the fixing column 23, there are several heat dissipation plates 21, the several heat dissipation plates 21 are arranged in a horizontal array, there are two connecting plates 2, the two connecting plates 2 are arranged symmetrically, there are two contact plates 211, the two contact plates 211 are arranged symmetrically with the main body 1 as the center.
[0026] Please see Figure 4 As shown, the inner wall of the limiting ring 33 is slidably connected to the outer wall of the moving rod 331, the front of the second spring 332 is fixedly connected to the back of the limiting ring 33, and the back of the second spring 332 is fixedly connected to the front of the pulley moving block 34.
[0027] Please see Figure 2 As shown, a connecting groove 22 is provided on the top of the top cover 11. A heat sink 21 is in contact with the inner wall of the connecting groove 22. A connecting plate 2 is fixedly connected to the bottom of the heat sink 21. The outer wall of the connecting plate 2 is fixedly connected to the top of the inner wall of the top cover 11. A contact plate 211 is fixedly connected to the bottom of the connecting plate 2.
[0028] Please see Figure 3 As shown, the clamping block 3 is fixedly connected to the limiting plate 31 on the front. The limiting plate 31 has a sliding hole at the top. The inner wall of the sliding hole is in contact with the outer wall of the fixing column 23. The bottom of the spring 311 is fixedly connected to the top of the limiting plate 31. The top of the spring 311 is fixedly connected to the bottom of the connecting plate 2. The bottom of the fixing block 32 is in contact with the pulley moving block 34.
[0029] The implementation principle of a high-reliability transient voltage suppression diode in this application embodiment is as follows: Moving the fixing block 32 downwards pushes the clamping block 341 towards the main body 1 until several clamping blocks 341 clamp and fix the bottom of the main body 1. Simultaneously, the arrangement of several clamping blocks 311 clamps and fixes the top of the main body 1, and the spring 311 provides reinforcement. After opening the top cover 11, the clamping blocks 341 spring back to their original position under the action of the spring 332, facilitating disassembly of the main body 1. This device not only allows for convenient disassembly by personnel when a malfunction occurs, but also facilitates its transport. The fixed design ensures greater stability and prevents damage to the TVS chip caused by the transient voltage suppressor diode falling off during transportation or installation. The heat generated by the main body 1 is transferred to the connecting plate 2 via two contact plates 211 that contact the top and bottom of the main body 1. Several heat sinks 21 are fixed on top of the connecting plate 2, quickly dissipating the heat generated by the main body 1. Furthermore, the brass construction of the connecting plate 2, heat sinks 21, and contact plates 211 enhances heat dissipation. The main body 1 can be disassembled after opening the top cover 11, allowing for repeated use, further improving heat dissipation, extending its lifespan, and preventing overheating damage.
[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-reliability transient voltage suppression diode comprising a body (1), characterized in that: The top cover (11) is provided above the main body (1), the left side of the top cover (11) is provided with an assembly groove (112), the inner wall of the assembly groove (112) is in contact with the outer wall of the main body (1), the bottom of the top cover (11) is in contact with the bottom cover (111), the front of the top cover (11) is fixedly connected with the buckle (12), the inside of the bottom cover (111) is provided with the clamping block one (3), the bottom of the clamping block one (3) is in contact with the top of the main body (1), the front of the clamping block one (3) is provided with the fixed column (23), the outer wall of the fixed column (23) is sleeved with the spring one (311), the bottom of the spring one (311) is provided with the clamping block two (341), the top of the clamping block two (341) is in contact with the bottom of the main body (1), the bottom of the fixed column (23) is fixedly connected with the fixed block (32), the front of the fixed block (32) is provided with the spring two (332).
2. The high reliability transient voltage suppression diode of claim 1, wherein: The top cover (11) is provided above the main body (1), the left side of the top cover (11) is provided with an assembly groove (112), the inner wall of the assembly groove (112) is in contact with the outer wall of the main body (1), the bottom of the top cover (11) is in contact with the bottom cover (111), the front of the top cover (11) is fixedly connected with the buckle (12), the inside of the bottom cover (111) is provided with the clamping block one (3), the bottom of the clamping block one (3) is in contact with the top of the main body (1), the front of the clamping block one (3) is provided with the fixed column (23), the outer wall of the fixed column (23) is sleeved with the spring one (311), the bottom of the spring one (311) is provided with the clamping block two (341), the top of the clamping block two (341) is in contact with the bottom of the main body (1), the bottom of the fixed column (23) is fixedly connected with the fixed block (32), the front of the fixed block (32) is provided with the spring two (332).
3. The high reliability transient voltage suppression diode of claim 2, wherein: The bottom of the contact plate (211) is in contact with the top of the main body (1), the bottom of the connecting plate (2) is fixedly connected with the top of the fixed column (23), the number of the heat dissipation plates (21) is several, the several heat dissipation plates (21) are arranged in a horizontal array, the number of the connecting plates (2) is two, the two connecting plates (2) are symmetrically arranged, and the number of the contact plates (211) is two.
4. The high reliability transient voltage suppression diode of claim 1, wherein: The front of the clamping block one (3) is fixedly connected with the limiting plate (31), the top of the limiting plate (31) is provided with a sliding hole, the inner wall of the sliding hole is in contact with the outer wall of the fixed column (23), the bottom of the spring one (311) is fixedly connected with the top of the limiting plate (31), the top of the spring one (311) is fixedly connected with the bottom of the connecting plate (2), and the bottom of the fixed block (32) is in contact with the pulley moving block (34).
5. The high reliability transient voltage suppression diode of claim 4, wherein: The left side of the pulley moving block (34) is fixedly connected with the right side of the clamping block two (341), the front of the pulley moving block (34) is fixedly connected with the moving rod (331), and the inner wall of the bottom cover (111) is fixedly connected with the limiting ring (33).
6. The high reliability transient voltage suppression diode of claim 5, wherein: The inner wall of the limiting ring (33) is in sliding connection with the outer wall of the moving rod (331), the front of the spring two (332) is fixedly connected with the back of the limiting ring (33), and the back of the spring two (332) is fixedly connected with the front of the pulley moving block (34).
7. The high reliability transient voltage suppression diode of claim 6, wherein: The inner wall of the bottom cover (111) is fixedly connected with the baffle (35), the front of the baffle (35) is in contact with the back of the fixed block (32), and the number of the clamping block two (341) is several.