Rectifier with safety protection function

Abstract

This utility model provides a rectifier with safety protection function, relating to the field of rectifier technology. The rectifier with safety protection function includes a rectifier body, an external protective cover, and a protective base plate connected to the protective cover. The protective cover, rectifier body, and protective base plate are all I-shaped, and the size of the protective base plate is adapted to the protective cover. Heat dissipation is achieved through heat dissipation holes on the front and rear sides of the rectifier body. A heat-conducting heat dissipation component is used to conduct heat generated on multiple sides of the rectifier body to the outside for heat dissipation, avoiding the situation where the surface of the rectifier body in contact with the protective cover cannot dissipate heat quickly. A cooling fan is used to directly dissipate heat from the top and interior of the rectifier body, and with the help of a guide plate, heat can be quickly dissipated from the heat dissipation slots to the outside, resulting in good heat dissipation effect for the rectifier body.

Description

Technical Field

[0001] This utility model relates to the field of rectifier technology, specifically a rectifier with safety protection function. Background Technology

[0002] A rectifier is a device that converts alternating current (AC) into direct current (DC). It can be used in power supply systems and for detecting radio signals. Rectifiers can be made from vacuum tubes, ignition tubes, solid-state silicon semiconductor diodes, mercury arc diodes, etc. Based on controllability, rectifiers can be divided into controlled rectifiers and uncontrolled rectifiers; based on type, they can be divided into single-phase half-wave rectification, single-phase full-wave rectification, three-phase half-wave rectification, and three-phase full-wave shaping, etc.

[0003] The patent document with publication number CN221614824U discloses a rectifier with a safety protection structure. Through the replaceable protective plate and multiple through slots with sealing plates, the housing can be adapted to more models of rectifiers, thereby better protecting the rectifier during operation.

[0004] While the above-mentioned technical solutions can protect the rectifier, during use, the rectifier is located inside the space formed by the protective plate and the housing. The rectifier generates heat during operation. Although the heat dissipation holes can dissipate heat, the side of the rectifier is in contact with the housing, and the side in contact with the housing cannot dissipate heat quickly. When encountering high temperatures and the rectifier operates for a long time, relying solely on the heat dissipation holes is not effective in heat dissipation and can easily lead to high temperatures in the rectifier. Therefore, a rectifier with safety protection function is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a rectifier with safety protection function, which aims to solve the problems in the prior art.

[0006] To achieve the above objectives, one embodiment of the present invention provides a rectifier with safety protection function, comprising:

[0007] Rectifier body;

[0008] The protective cover has the same shape as the rectifier body and is set outside the rectifier body. The protective cover has multiple heat dissipation holes on both the front and rear sides and two grooves on the protective cover. Heat dissipation slots are formed on the left and right sides inside the two grooves.

[0009] A protective base plate is connected to a protective cover, and the protective base plate and the protective cover are used to protect the rectifier body;

[0010] A cooling fan is installed in the middle of the top side of the protective cover. The cooling fan is used to generate cooling airflow and dissipate heat from the inside of the protective cover.

[0011] Multiple heat-conducting and heat-dissipating components are provided, each of which is disposed inside the groove and is in contact with the rectifier body. The heat-conducting and heat-dissipating components are used to conduct the heat generated by the rectifier body to the outside.

[0012] The airflow guide plate is inclinedly installed on the top side inside the protective cover. The top of the airflow guide plate corresponds to the position of the cooling fan, and the bottom of the airflow guide plate corresponds to the top of the heat dissipation groove. The airflow guide plate is used to conduct a part of the airflow generated by the cooling fan to the outside through the heat dissipation groove.

[0013] Preferably, the heat conduction and heat dissipation assembly includes a heat conduction plate and heat sinks. The heat conduction plate is attached to the side of the rectifier body. There are multiple heat sinks. The ends of the heat sinks are connected to the heat conduction plate. The heat sinks penetrate the protective cover and extend to the outside of the protective cover. The heat sinks are connected to the protective cover. The length direction of the heat sinks is parallel to the height direction of the protective cover.

[0014] Preferably, baffles are fixedly connected to the left and right sides inside the two grooves. The baffles are arc-shaped, with the bottom end of the baffles located above the heat sink and corresponding to the position of the heat sink, and the top end of the baffles corresponding to the top end of the heat sink groove.

[0015] Preferably, a protective cover positioning assembly is provided between the rectifier body and the protective cover. The protective cover positioning assembly includes a support base and positioning holes. There are four support bases, which are respectively installed at the four corners of the top side of the rectifier body. A positioning rod is fixedly connected to the top side of each of the four support bases. There are four positioning holes, which are respectively opened at the four corners of the top side of the protective cover. The positioning rod is inserted into the interior of the positioning hole, and the positioning rod corresponds to the positioning hole one by one.

[0016] Preferably, a base plate positioning assembly is provided between the protective cover and the protective base plate. The base plate positioning assembly includes positioning slots and positioning inserts. There are four positioning slots, which are respectively opened on the four end sides of the protective cover. There are four positioning inserts, which are respectively connected to the four corners of the protective base plate. The positioning inserts are inserted into the interior of the positioning slots, and the positioning inserts correspond one-to-one with the positioning slots.

[0017] Preferably, a fixing connector is provided between the positioning plate and the positioning rod. The fixing connector includes a first through hole, a second through hole, a fixing threaded rod, and a wing-shaped fixing nut. The first through hole is opened on the positioning rod, the second through hole is opened on the positioning plate, the fixing threaded rod is inserted into the first through hole and the second through hole, and the wing-shaped fixing nut is threadedly connected to the fixing threaded rod.

[0018] Preferably, the top side of the protective cover has multiple through slots, and the top side of the rectifier body is fixedly connected with multiple terminals. The number of terminals corresponds to the number of through slots. The terminals pass through the inside of the through slots, and the size of the terminals is smaller than the size of the through slots.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. Heat dissipation is achieved through ventilation holes on the front and rear sides of the rectifier body. A heat-conducting heat dissipation component transfers heat generated on multiple sides of the rectifier body to the outside for cooling, preventing the rectifier body from failing to dissipate heat quickly at the contact points with the protective cover. A cooling fan directly cools the top and interior of the rectifier body, and a baffle plate facilitates rapid heat dissipation from the heat sink to the outside, resulting in excellent heat dissipation. A deflector plate redirects some of the airflow downwards, allowing it to contact the heat sink and carry away heat, thus lowering its temperature and accelerating heat dissipation. This prevents overheating and extends the rectifier's lifespan.

[0021] 2. The combination of the protective cover positioning component, the base plate positioning component, and the fixed connectors makes the connection between the rectifier body, the protective cover, and the protective base plate relatively simple. This allows for the quick assembly of the protective cover and the protective base plate that protect the rectifier body, and also facilitates the removal of the protective cover and the protective base plate for maintenance of the rectifier body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the protective cover of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the protective base plate of this utility model;

[0026] Figure 5 This is a schematic diagram of the rectifier body of this utility model;

[0027] Figure 6 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0028] In the diagram: 10. Rectifier body; 11. Support base; 12. Positioning rod; 121. First through hole; 13. Terminal; 20. Protective cover; 21. Heat dissipation hole; 22. Heat dissipation groove; 23. Guide plate; 24. Heat conduction plate; 25. Heat sink; 26. Baffle plate; 27. Positioning hole; 28. Positioning slot; 29. ​​Through slot; 30. Protective base plate; 31. Positioning insert plate; 311. Second through hole; 40. Cooling fan; 50. Fixing threaded rod; 51. Wing-shaped fixing nut. Detailed Implementation

[0029] The present invention will now be further described with reference to the accompanying drawings.

[0030] like Figures 1 to 6 As shown, a rectifier with safety protection function includes a rectifier body 10, a protective cover 20 is provided on the outside of the rectifier body 10, and a protective base plate 30 is connected to the protective cover 20. The protective cover 20, the rectifier body 10 and the protective base plate 30 are all I-shaped. The protective base plate 30 is adapted to the size of the protective cover 20. The rectifier body 10 is located inside the area formed by the protective base plate 30 and the protective cover 20. A cooling fan 40 is installed at the middle of the top side of the protective cover 20. Multiple heat dissipation holes 21 are opened on both the front and rear sides of the protective cover 20 for heat dissipation on the front and rear sides of the rectifier body 10. For heat dissipation, the protective cover 20 has two grooves, and each of the three sides inside the two grooves is provided with a heat-conducting heat dissipation component. Each heat-conducting heat dissipation component is in contact with the rectifier body 10 and conducts the heat generated by the rectifier body 10 to the outside. The left and right sides inside the two grooves are provided with heat dissipation slots 22. The top side inside the protective cover 20 is fixedly connected to two inclined guide plates 23. The top of the guide plate 23 corresponds to the position of the cooling fan 40, and the bottom of the guide plate 23 corresponds to the top of the heat dissipation slot 22. The guide plate 23 is used to conduct a part of the airflow generated by the cooling fan 40 to the outside through the heat dissipation slot 22.

[0031] When the rectifier body 10 is working, heat is dissipated from the front and rear sides of the rectifier body 10 through the heat dissipation holes 21. The heat dissipation components are used to conduct the heat generated on multiple sides of the rectifier body 10 to the outside for heat dissipation, avoiding the situation where the surface of the rectifier body 10 in contact with the protective cover 20 cannot dissipate heat quickly. The cooling fan 40 is used to directly dissipate heat from the top side and inside of the rectifier body 10. Under the action of the guide plate 23, the heat can be quickly dissipated from the heat dissipation slot 22 to the outside, resulting in a good heat dissipation effect on the rectifier body 10. This quickly dissipates heat from the rectifier body 10 and prevents the temperature inside the protective cover 20 from rising.

[0032] The heat dissipation assembly includes a heat-conducting plate 24 that is attached to the rectifier body 10. The heat-conducting plate 24 is made of a non-metallic material with good thermal conductivity, such as silicon carbide. The heat-conducting plate 24 is used to conduct heat while avoiding electrical conductivity. Multiple heat sinks 25 are fixedly installed on the side of the heat-conducting plate 24 away from the rectifier body 10. The heat sinks 25 penetrate one side of the protective cover 20 and extend to the outside of the protective cover 20. The heat sinks 25 are fixedly connected to the protective cover 20. The length direction of the heat sinks 25 is parallel to the height direction of the protective cover 20.

[0033] When the rectifier body 10 generates heat during operation, the heat can be conducted to the heat sink 25 through multiple heat conduction plates 24, and the heat can be dissipated to the outside through the heat sink 25, thereby accelerating the heat dissipation speed on the side of the rectifier body 10.

[0034] It should be noted that after the heat-conducting plate 24 is attached to the rectifier body 10, the heat-conducting plate 24 limits the rectifier body 10 to prevent the rectifier body 10 from shifting its position inside the protective cover 20.

[0035] Baffles 26 are fixedly connected to the left and right sides inside the two grooves. The shape of the baffles 26 is arc-shaped. The bottom end of the baffles 26 is located above the heat sink 25 and corresponds to the position of the heat sink 25. The top end of the baffles 26 corresponds to the top end of the heat sink 22. The baffles 26 are used to change the direction of the gas inside the protective cover 20 and make the gas come into contact with the heat sink 25.

[0036] During the operation of the cooling fan 40, the generated airflow dissipates heat from the rectifier body 10, and a portion of the cooling airflow will flow out from the heat sink 22. At this time, under the action of the baffle 26, a portion of the cooling airflow can change direction and move downward. The baffle 26 is positioned corresponding to the heat sink 25. At this time, the downward airflow will come into contact with the heat sink 25 and carry away the heat dissipated by the heat sink 25, thereby reducing the temperature of the heat sink 25 and enabling the heat sink 25 to perform better heat dissipation operation, thus accelerating the heat dissipation speed on multiple sides of the rectifier body 10.

[0037] A protective cover positioning assembly is provided between the rectifier body 10 and the protective cover 20. The protective cover positioning assembly includes support bases 11 connected to the four corners of the top side of the rectifier body 10 and positioning holes 27 opened on the top side of the protective cover 20. Positioning rods 12 are fixedly connected to the top side of the four support bases 11. The positioning rods 12 are inserted into the interior of the positioning holes 27, and the size of the positioning rods 12 is adapted to the positioning holes 27.

[0038] When connecting the protective cover 20 to the rectifier body 10, the positioning rod 12 is inserted into the positioning hole 27 and the protective cover 20 is made to fit against the support base 11, thereby positioning the protective cover 20. At this time, the support base 11 makes a heat dissipation cavity between the top side of the rectifier body 10 and the top side inside the protective cover 20. The heat dissipation cavity facilitates the movement of the airflow generated by the cooling fan 40, and the heat dissipation groove 22 is connected to the heat dissipation cavity, so that heat can be dissipated to the outside of the protective cover 20 through the heat dissipation groove 22.

[0039] A base plate positioning assembly is provided between the protective cover 20 and the protective base plate 30. The base plate positioning assembly includes positioning slots 28 opened on the four end sides of the protective cover 20 and positioning inserts 31 connected to the four corners of the protective base plate 30. The positioning inserts 31 are inserted into the inside of the positioning slots 28, and the length of the positioning inserts 31 is greater than the height of the protective cover 20.

[0040] After the protective cover 20 is positioned, the positioning insert 31 passes through the inside of the positioning slot 28, and the protective base plate 30 is tightly attached to the bottom side of the protective cover 20. At this time, the rectifier body 10 is located inside the area formed by the protective cover 20 and the protective base plate 30, and the rectifier body 10 is limited to avoid the rectifier body 10 from shaking or shifting.

[0041] A fixing connector is provided between the positioning plate 31 and the positioning rod 12. The fixing connector includes a first through hole 121 on the positioning rod 12 and a second through hole 311 on the positioning plate 31. A fixing threaded rod 50 is inserted into the first through hole 121 and the second through hole 311. A wing-shaped fixing nut 51 is threaded onto the outer surface of the fixing threaded rod 50.

[0042] After the protective base plate 30 and the protective cover 20 are tightly fitted together, the positions of the first through hole 121 and the second through hole 311 correspond. Then, the fixing threaded rod 50 can pass through the inside of the first through hole 121 and the second through hole 311. Then, the wing-shaped fixing nut 51 can be threadedly connected to the fixing threaded rod 50 and the wing-shaped fixing nut 51 can be tightly fitted to the positioning insert plate 31. At this time, the fixing threaded rod 50 is fitted to the top side of the protective cover 20, which limits the top side of the protective cover 20 and prevents the protective cover 20 from moving up and down. This completes the operation of connecting the protective base plate 30 and the protective cover 20. At this time, the rectifier body 10 is protected by the protective base plate 30 and the protective cover 20, which prevents the rectifier body 10 from being easily damaged by external factors.

[0043] It should be noted that the positioning plate 31 is U-shaped, the butterfly fixing nut 51 is located inside the positioning plate 31, and the end face of the fixing thread rod 50 is on the same vertical plane as the side of the positioning plate 31, thus avoiding the situation where the fixing thread rod 50 and the butterfly fixing nut 51 are exposed outside the positioning plate 31.

[0044] The top side of the protective cover 20 has multiple through slots 29, and the top side of the rectifier body 10 is fixedly connected with multiple terminals 13. The number of terminals 13 corresponds to the number of through slots 29. The terminals 13 pass through the inside of the through slots 29, and the size of the terminals 13 is smaller than the size of the through slots 29.

[0045] During the process of connecting the protective cover 20 to the rectifier body 10, the terminal 13 will pass through the inside of the slot 29 and be exposed to the outside, so as to facilitate the connection of the terminal 13 to the external load.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rectifier with safety protection function, characterized in that, include: Rectifier body (10); The protective cover (20) has the same shape as the rectifier body (10). The protective cover (20) is set outside the rectifier body (10). Multiple heat dissipation holes (21) are opened on both the front and rear sides of the protective cover (20). Two grooves are provided on the protective cover (20). Heat dissipation slots (22) are opened on the left and right sides inside the two grooves. A protective base plate (30) is connected to a protective cover (20), and the protective base plate (30) and the protective cover (20) are used to protect the rectifier body (10); A cooling fan (40) is installed in the middle of the top side of the protective cover (20). The cooling fan (40) is used to generate cooling airflow and dissipate heat from the inside of the protective cover (20). Multiple heat-conducting and heat-dissipating components are provided, each heat-conducting and heat-dissipating component is disposed inside the groove, and each heat-conducting and heat-dissipating component is in contact with the rectifier body (10). The heat-conducting and heat-dissipating components are used to conduct the heat generated by the rectifier body (10) to the outside. The guide plate (23) is inclinedly set on the top side inside the protective cover (20). The top of the guide plate (23) corresponds to the position of the cooling fan (40), and the bottom of the guide plate (23) corresponds to the top of the heat sink (22). The guide plate (23) is used to conduct a part of the airflow generated by the cooling fan (40) to the outside through the heat sink (22).

2. The rectifier with safety protection function according to claim 1, characterized in that: The heat dissipation assembly includes a heat-conducting plate (24) and a heat sink (25). The heat-conducting plate (24) is attached to the side of the rectifier body (10). There are multiple heat sinks (25). The ends of the heat sinks (25) are connected to the heat-conducting plate (24). The heat sinks (25) penetrate the protective cover (20) and extend to the outside of the protective cover (20). The heat sinks (25) are connected to the protective cover (20). The length direction of the heat sinks (25) is parallel to the height direction of the protective cover (20).

3. The rectifier with safety protection function according to claim 2, characterized in that: Both of the two grooves have baffles (26) fixedly connected to their left and right sides. The baffles (26) are arc-shaped. The bottom of the baffles (26) is located above the heat sink (25) and corresponds to the position of the heat sink (25). The top of the baffles (26) corresponds to the top of the heat sink (22).

4. The rectifier with safety protection function according to claim 2, characterized in that: A protective cover positioning assembly is provided between the rectifier body (10) and the protective cover (20). The protective cover positioning assembly includes a support base (11) and a positioning hole (27). There are four support bases (11), which are respectively installed at the four corners of the top side of the rectifier body (10). A positioning rod (12) is fixedly connected to the top side of each of the four support bases (11). There are four positioning holes (27), which are respectively opened at the four corners of the top side of the protective cover (20). The positioning rod (12) is inserted into the interior of the positioning hole (27), and the positioning rod (12) corresponds to the positioning hole (27) one by one.

5. The rectifier with safety protection function according to claim 4, characterized in that: A base plate positioning assembly is provided between the protective cover (20) and the protective base plate (30). The base plate positioning assembly includes positioning slots (28) and positioning plates (31). There are four positioning slots (28), which are respectively opened on the four end sides of the protective cover (20). There are four positioning plates (31), which are respectively connected to the four corners of the protective base plate (30). The positioning plates (31) are inserted into the interior of the positioning slots (28), and the positioning plates (31) correspond one-to-one with the positioning slots (28).

6. A rectifier with safety protection function according to claim 5, characterized in that: A fixing connector is provided between the positioning plate (31) and the positioning rod (12). The fixing connector includes a first through hole (121), a second through hole (311), a fixing threaded rod (50), and a butterfly fixing nut (51). The first through hole (121) is opened on the positioning rod (12), the second through hole (311) is opened on the positioning plate (31), the fixing threaded rod (50) is inserted into the first through hole (121) and the second through hole (311), and the butterfly fixing nut (51) is threadedly connected to the fixing threaded rod (50).

7. The rectifier with safety protection function according to claim 5, characterized in that: The top side of the protective cover (20) is provided with multiple through slots (29), and the top side of the rectifier body (10) is fixedly connected with multiple terminals (13). The number of terminals (13) corresponds to the number of through slots (29). The terminals (13) pass through the inside of the through slots (29), and the size of the terminals (13) is smaller than the size of the through slots (29).

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