Contactless contactor device

Abstract

The utility model discloses a contactless contactor device, which comprises a shell, a graphene plate, a silicon controlled rectifier unit and a cooling fan, the shell is provided with a heat dissipation opening communicating the outside with an inner cavity of the shell, and the side, away from the heat dissipation opening, of the inner cavity is a fixed side. The graphene plate comprises a heat transfer plate and a plurality of heat dissipation plates, the heat transfer plate is installed in the shell, the heat transfer plate and the fixed side are arranged in a spaced mode, the heat dissipation plates are provided with installation side faces facing the heat dissipation opening, and the multiple heat dissipation plates are arranged at one ends of the installation side faces at intervals and all face the heat dissipation opening; the thyristor unit is mounted on the mounting side surface; the heat dissipation fan is installed in the shell and located between the heat dissipation opening and the heat dissipation plates. According to the scheme, the space occupied by the cooling fan can be reduced, and the space utilization rate is increased; and the heat transfer plate and the fixed side of the shell are arranged at an interval, so that the heat transfer plate is prevented from transferring heat to other external devices through the fixed side to influence normal use of the other devices, the practicability is improved, the structure is relatively simple, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of thyristors, in particular to a contactless contactor device. Background Art

[0002] Thyristors, short for silicon-controlled rectifiers, are widely used in various electronic devices and products, often for controlled rectification, inverters, frequency conversion, voltage regulation, and contactless switches. Currently, fans and heat sinks are commonly added to thyristors to cool and dissipate heat.

[0003] For example, patent CN215933578U discloses a thyristor radiator with good heat dissipation effect. When the temperature is high, it controls the rotation of two cooling fans to dissipate heat for the thyristor. When the ambient temperature reaches a certain value, the sliding motor controls the sliding block, and the sliding block on the adjustment block slides downward on the sliding rod, so that the body rests on the thyristor, the heat-conducting block contacts the thyristor, and the heat on the thyristor is introduced into the heat-conducting block. The heat contacts the cooling liquid in the cooling chamber to perform water cooling operation with high heat dissipation efficiency.

[0004] However, this patent requires the installation of a motor, a sliding block, a sliding rod, etc., which makes the structure relatively complex and increases the cost. At the same time, in order to ensure the heat dissipation effect, the cooling fan needs to face and cover the thyristor, resulting in a large space occupied by the cooling fan, which is not conducive to the integration of the device. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to provide a contactless contactor device to solve the technical problem in the prior art that the heat dissipation structure of the thyristor is relatively complex, which increases the cost.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a contactless contactor device, comprising:

[0008] The housing has a heat dissipation opening communicating with the exterior and the inner cavity thereof, and a side of the inner cavity thereof away from the heat dissipation opening is a fixed side;

[0009] The graphene plate includes a heat transfer plate and a plurality of heat dissipation plates, wherein the heat transfer plate is installed in the housing and is spaced apart from the fixed side and has a mounting side facing the heat dissipation port, and the plurality of heat dissipation plates are spaced apart at one end of the mounting side and all face the heat dissipation port;

[0010] a thyristor unit, mounted on the mounting side; and

[0011] The heat dissipation fan is installed in the housing and is located between the heat dissipation opening and the plurality of heat dissipation plates.

[0012] In one embodiment, the heat dissipation plates are provided in two groups, the two groups of heat dissipation plates are located at opposite ends of the mounting side surface, and the heat dissipation plates of each group are provided at intervals in a direction away from the heat dissipation plates of the other group;

[0013] The thyristor unit is arranged between the two groups of heat dissipation plates. Two heat dissipation fans and two heat dissipation ports are respectively provided. The two heat dissipation fans and the two heat dissipation ports correspond to the two groups of heat dissipation plates respectively.

[0014] In one embodiment, a plurality of thyristor units are provided, and the plurality of thyristor units are arranged in sequence along the arrangement direction of the two groups of heat dissipation plates.

[0015] In one embodiment, the contactless contactor device further includes an aluminum alloy heat sink, which is attached to the heat transfer plate and located on a side of the heat transfer plate away from the mounting side and spaced apart from the fixed side.

[0016] In one embodiment, the contactless contactor device further includes a temperature measuring device, which is installed in the housing and corresponds to the aluminum alloy radiator to monitor the temperature of the aluminum alloy radiator.

[0017] In one embodiment, an accommodation gap is reserved between the thyristor unit and the aluminum alloy heat sink, and the temperature measuring device is placed in the accommodation gap.

[0018] In one embodiment, the cooling fan is a subwoofer fan.

[0019] In one embodiment, the thyristor unit is spaced apart from the inner wall of the housing.

[0020] In one embodiment, the housing is a metal shell.

[0021] In one embodiment, the distance between the heat sink and the inner wall of the shell on which the heat dissipation port is provided is a, and the distance between the thyristor unit and the inner wall of the shell on which the heat dissipation port is provided is b, satisfying a>b, so that an installation space is formed between the heat sink and the thyristor unit, and the cooling fan is placed in the installation space.

[0022] Compared with the prior art, in the contactless contactor device provided by the present invention, the thyristor unit and the heat sink are placed on the heat transfer plate at the same time, and multiple heat sinks are arranged at intervals to expand the heat dissipation area. At the same time, the heat dissipation fan can be placed directly opposite the multiple heat sinks so that the heat transferred to the heat sink can be discharged through the heat dissipation port by the heat dissipation fan. There is no need for the heat dissipation fan to cover the thyristor unit as a whole, thereby reducing the space occupied by the heat dissipation fan. In addition, in this solution, the heat sink and the thyristor unit are placed on the installation side at the same time to improve space utilization. The heat transfer plate and the fixed side of the shell are arranged at intervals to prevent the heat transfer plate from transferring heat to other external devices through the fixed side and affecting the normal use of other devices, thereby improving practicality, and the structure is relatively simple, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of a contactless contactor device provided by an embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 A top view of a contactless contactor device (housing not shown);

[0025] Figure 3 yes Figure 1 Side view of the contactless contactor device.

[0026] Description of reference numerals:

[0027] 1. Housing; 11. Fixed side; 2. Graphene plate; 21. Heat transfer plate; 211. Mounting side; 22. Heat sink; 22a. Mounting space; 3. Thyristor unit; 4. Cooling fan; 5. Aluminum alloy radiator; 5a. Accommodation gap; 6. Temperature measuring equipment. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] In order to solve the technical problem that the heat dissipation structure of thyristors in the prior art is relatively complex and increases costs, the utility model provides a contactless contactor device with a relatively simple structure, which saves costs and can reduce the space occupied by the cooling fan, improve space utilization, and prevent the heat transfer plate from transferring heat to other external devices through the fixed side and affecting the normal use of other devices.

[0030] See also Figures 1 to 3 , Figures 1 to 3This is a structural schematic diagram of a contactless contactor device in one embodiment of the present invention. The contactless contactor device includes a shell 1, a graphene plate 2, a thyristor unit 3 and a cooling fan 4; the shell 1 has a heat dissipation port connecting the outside and its inner cavity, and the side of its inner cavity away from the heat dissipation port is a fixed side 11; the graphene plate 2 includes a heat transfer plate 21 and multiple heat dissipation plates 22, the heat transfer plate 21 is installed in the shell 1 and is spaced apart from the fixed side 11, and has a mounting side 211 facing the heat dissipation port, and multiple heat dissipation plates 22 are spaced apart at one end of the mounting side 211 and all face the heat dissipation port; the thyristor unit 3 is installed on the mounting side 211; the cooling fan 4 is installed in the shell 1 and is located between the heat dissipation port and the multiple heat dissipation plates 22.

[0031] In the contactless contactor device provided by the present invention, the thyristor unit 3 and the heat sink 22 are placed on the heat transfer plate 21 at the same time, and the multiple heat sinks 22 are arranged at intervals to expand the heat dissipation area. At the same time, the heat dissipation fan 4 can be placed directly opposite the multiple heat sinks 22, so that the heat transferred to the heat sink 22 can be discharged through the heat dissipation port by the heat dissipation fan 4. There is no need for the heat dissipation fan 4 to cover the thyristor unit 3 as a whole, thereby reducing the space occupied by the heat dissipation fan 4. In addition, in this solution, the heat sink 22 and the thyristor unit 3 are placed on the installation side 211 at the same time to improve space utilization. The heat transfer plate 21 is spaced from the fixed side 11 of the housing 1 to prevent the heat transfer plate 21 from transferring heat to other external devices through the fixed side 11 and affecting the normal use of other devices, thereby improving practicality, and having a relatively simple structure, saving costs, and being able to be used in harsh environments such as high temperature and high dust.

[0032] In one embodiment, see Figure 2 There are two groups of heat sinks 22, which are located at opposite ends of the mounting side surface 211, and each group of heat sinks 22 is provided with multiple heat sinks 22 spaced apart in a direction away from the other group of heat sinks 22; the thyristor unit 3 is provided between the two groups of heat sinks 22, and two heat dissipation fans 4 and two heat dissipation ports are provided respectively, and the two heat dissipation fans 4 and the two heat dissipation ports correspond to the two groups of heat sinks 22 respectively.

[0033] In this embodiment, a group of heat dissipation plates 22 are respectively provided at the two opposite ends of the installation side 211, and the thyristor unit 3 is placed between the two groups of heat dissipation plates 22. Specifically, there are multiple thyristor units 3, and the multiple thyristor units 3 are arranged in sequence along the arrangement direction of the two groups of heat dissipation plates 22, so as to further improve the space utilization of the device while improving the heat dissipation efficiency.

[0034] In one embodiment, the contactless contactor device further includes an aluminum alloy heat sink 5 , which is attached to the heat transfer plate 21 and located on a side of the heat transfer plate 21 away from the mounting side 211 and spaced apart from the fixed side 11 .

[0035] In this embodiment, an aluminum alloy heat sink 5 is also installed on the side of the heat transfer plate 21 away from the mounting side 211. The aluminum alloy heat sink 5 is also spaced apart from the fixed side 11 to improve heat dissipation efficiency. It should be noted that the grid assembly of the aluminum alloy heat sink 5 is located on the side away from the heat transfer plate 21.

[0036] In one embodiment, the contactless contactor device further includes a temperature measuring device 6 , which is installed in the housing 1 and corresponds to the aluminum alloy heat sink 5 to monitor the temperature of the aluminum alloy heat sink 5 .

[0037] In this embodiment, the temperature of the aluminum alloy radiator 5 can be monitored in real time by the temperature measuring device 6, so that the air volume of the cooling fan 4 can be flexibly adjusted according to the monitoring value of the temperature measuring device 6 to save energy while effectively dissipating heat.

[0038] In one embodiment, an accommodating gap 5 a is reserved between the thyristor unit 3 and the aluminum alloy heat sink 5 , and the temperature measuring device 6 is placed in the accommodating gap 5 a ; the temperature measuring device 6 is a temperature sensor.

[0039] In this embodiment, an accommodation gap 5a is reserved for the installation of the temperature measuring device 6 based on the structure of the thyristor unit 3 and the aluminum alloy heat sink 5, and the temperature measuring device 6 is set as a temperature sensor, which saves space and further improves the integration of the device.

[0040] In one embodiment, the thyristor unit 3 is spaced apart from the inner wall of the housing 1 .

[0041] In this embodiment, the thyristor unit 3 is spaced apart from the inner wall of the housing 1 to prevent the heat of the thyristor unit 3 from being directly transferred to other external components through the housing 1 , thereby preventing the external components from being affected by the heat of the thyristor unit 3 .

[0042] Furthermore, the housing 1 is a metal shell. Specifically, in this embodiment, the housing 1 is a high-temperature resistant metal shell to extend the service life of the housing 1. It should be noted that in one embodiment, the high-temperature resistant metal is based on iron, nickel, and cobalt, and is a type of metal material that can operate for a long time at temperatures above 600°C and under certain stresses. It has excellent high-temperature strength, good oxidation resistance and hot corrosion resistance, and good fatigue performance, fracture toughness, and other comprehensive properties.

[0043] In one embodiment, the distance between the heat sink 22 and the side of the inner wall of the shell 1 where the heat dissipation port is provided is a, and the distance between the thyristor unit 3 and the side of the inner wall of the shell 1 where the heat dissipation port is provided is b, satisfying a>b, so that an installation space 22a is formed between the heat sink 22 and the thyristor unit 3, and the cooling fan 4 is placed in the installation space 22a.

[0044] In this embodiment, an installation space 22a is provided between the heat sink 22 and the thyristor unit 3, and a heat dissipation fan 4 is placed in the installation space 22a to improve the space utilization of the device. Specifically, the heat dissipation fan 4 is a subwoofer fan to reduce noise.

[0045] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail:

[0046] In the embodiment of the accompanying drawings, two subwoofer fans are fixed in a high-temperature resistant metal casing and distributed on both sides of the three thyristor units 3. Two sets of heat dissipation plates 22 blow air to dissipate heat, so that the thyristors dissipate heat evenly. The temperature measuring device 6 controls the operation of the subwoofer fans by detecting the bottom plate temperature of the aluminum alloy radiator 5.

[0047] The thyristor unit 3 is fixed to the aluminum alloy baseplate on which the graphene plate 2 is attached. This facilitates the transfer and dissipation of heat generated by the thyristor through the graphene plate 2, ensuring that the thyristor is not affected by high temperatures and extending its service life. Specifically, the graphene plate 2 is attached to the aluminum alloy baseplate, leveraging its high thermal conductivity to quickly transfer heat energy generated by the thyristor and prevent heat accumulation.

[0048] The thyristor main circuit terminals are led out through a high-temperature metal housing and equipped with insulation protection. This minimizes the space required for the high-temperature metal housing and allows the mounting dimensions to be aligned with those of conventional CJX2 series contactors, enabling direct replacement of CJX2 series contactors.

[0049] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A contactless contactor device, characterized in that: include: The housing has a heat dissipation opening communicating with the exterior and the inner cavity thereof, and a side of the inner cavity thereof away from the heat dissipation opening is a fixed side; The graphene plate includes a heat transfer plate and a plurality of heat dissipation plates, wherein the heat transfer plate is installed in the housing and is spaced apart from the fixed side and has a mounting side facing the heat dissipation port, and the plurality of heat dissipation plates are spaced apart at one end of the mounting side and all face the heat dissipation port; a thyristor unit, mounted on the mounting side; and The heat dissipation fan is installed in the housing and is located between the heat dissipation opening and the plurality of heat dissipation plates.

2. The contactless contactor device according to claim 1, characterized in that: There are two groups of heat dissipation plates, which are located at opposite ends of the mounting side surface, and a plurality of heat dissipation plates in each group are spaced apart in a direction away from the heat dissipation plates in the other group; The thyristor unit is arranged between the two groups of heat dissipation plates. Two heat dissipation fans and two heat dissipation ports are respectively provided. The two heat dissipation fans and the two heat dissipation ports correspond to the two groups of heat dissipation plates respectively.

3. The contactless contactor device according to claim 2, characterized in that: There are a plurality of thyristor units, and the plurality of thyristor units are arranged in sequence along the arrangement direction of the two groups of heat dissipation plates.

4. The contactless contactor device according to claim 1, characterized in that: The contactless contactor device further includes an aluminum alloy heat sink, which is attached to the heat transfer plate and located on a side of the heat transfer plate away from the mounting side and spaced apart from the fixed side.

5. The contactless contactor device according to claim 4, characterized in that: The contactless contactor device further includes a temperature measuring device, which is installed in the housing and corresponds to the aluminum alloy radiator to monitor the temperature of the aluminum alloy radiator.

6. The contactless contactor device according to claim 5, characterized in that: An accommodating gap is reserved between the thyristor unit and the aluminum alloy radiator, and the temperature measuring device is placed in the accommodating gap.

7. The contactless contactor device according to claim 1, characterized in that: The heat dissipation fan is a subwoofer fan.

8. The contactless contactor device according to claim 1, characterized in that: The thyristor unit is spaced apart from the inner wall of the shell.

9. The contactless contactor device according to claim 1, characterized in that: The shell is a metal shell.

10. The contactless contactor device according to claim 1, characterized in that: The distance between the heat sink and the inner wall of the shell on which the heat dissipation port is provided is a, and the distance between the thyristor unit and the inner wall of the shell on which the heat dissipation port is provided is b, satisfying a>b, so that an installation space is formed between the heat sink and the thyristor unit, and the cooling fan is placed in the installation space.

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