Solid-state relay with temperature control function and temperature control method thereof

Abstract

The invention discloses a solid-state relay with a temperature control function and a temperature control method thereof, and relates to the technical field of relays; the relay housing comprises a relay housing, on which four expansion control components are mounted, and the four expansion control components are used for thermal expansion; a lifting and lowering switching component is mounted inside the relay housing; the four expansion control components are used for controlling the lifting and lowering of the lifting and lowering switching component; two terminal contact components are mounted on the lifting and lowering switching component; the current solid-state relay is not convenient for realizing the switching temperature control of the main board, the photoelectric coupler is damaged, and the fuse is not convenient for replacement; the lifting and lowering structure of the lifting and lowering switching component can be utilized to replace two photoelectric coupler main boards, and the photoelectric coupler main board can be replaced after being short-circuited, damaged, and heated, thereby prolonging the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, in particular to a solid-state relay with a temperature control function and a temperature control method thereof. Background Art

[0002] A relay is an electrical control device. When the change in input quantity reaches the specified requirement, the controlled quantity in the electrical output circuit undergoes a predetermined step change. In solid-state relays, photoelectric couplers are mostly used for signal control. Solid-state relays are widely used because of their advantages such as quick response. However, in actual applications of solid-state relays, the photoelectric coupler motherboard will heat up when the control is frequently powered on. Therefore, most current solid-state relays have a bottom plate that can dissipate heat. Current solid-state relays are not convenient for switching and controlling the temperature of the motherboard. Problems such as damage to the photoelectric coupler make it inconvenient to replace the insurance. It is also not convenient to switch and disable the overheated motherboard for cooling. It is difficult to achieve a good heat dissipation effect for the motherboard that is continuously used by using traditional ventilation and cooling. It is also not convenient to automatically control the ventilation volume according to the temperature, and the heat dissipation effect is poor. It is also not convenient for explosion-proof pressure relief. A breakdown accident in the fully sealed structure can easily cause an explosion, making it inconvenient to provide explosion-proof alarm prompts.

[0003] To this end, we propose a solid-state relay with temperature control function and a temperature control method thereof. Summary of the invention

[0004] The object of the present invention is to provide a solid-state relay with a temperature control function and a temperature control method thereof, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a solid-state relay with temperature control function and a temperature control method thereof, comprising a relay housing, on which four expansion control parts are installed, and the four expansion control parts are used for thermal expansion; a lifting switch part is installed inside the relay housing; the four expansion control parts are used to control the lifting and lowering of the lifting switch part; two terminal contacts are installed on the lifting switch part, and the two terminal contacts are respectively attached to the relay housing; two pulling auxiliary parts are installed on the lifting switch part; a closed connecting part is fixedly installed on the relay housing; two pulling auxiliary parts are connected to the bottom of the closed connecting part; an exhaust part is installed on the closed connecting part; the exhaust part is used for cooling and ventilation; a switch control device is installed on the exhaust part; the switch control device is used to control the heat dissipation and cooling switch; the relay housing comprises: a mounting housing and an elastic terminal piece, four elastic terminal pieces are fixedly installed on the inner side of the mounting housing; and the four elastic terminal pieces are in groups of two; four wiring terminals are provided on the mounting housing; the four elastic terminal pieces are respectively connected to the wiring terminals on the mounting housing.

[0006] Preferably, the terminal contact comprises: a terminal connection board and an insulating strip, wherein a group of terminal connection boards are electrically connected to each side of the two photoelectric coupler main boards, and each group of terminal connection boards consists of two terminals; the terminal connection boards between the two photoelectric coupler main boards are spaced apart by an insulating strip; the insulating strip is embedded between two adjacent terminal connection boards; the four groups of terminal connection boards are fixedly mounted on both sides of the connecting frame, respectively; and the four elastic terminal pieces are elastically fitted to the four terminals on the two upper terminal connection boards.

[0007] Preferably, the lifting switching member comprises: an upper mainboard mounting ring, a sliding limit groove, a connecting frame, a lower mainboard mounting ring, an optocoupler mainboard, a push rod and a movable magnet, wherein the four corners of the upper mainboard mounting ring are respectively slidably mounted on the inner sides of four sliding limit blocks; four sliding limit grooves are provided on the upper mainboard mounting ring, and a push limit plate is respectively slidably mounted in the four sliding limit grooves; a connecting frame is fixedly mounted on the bottom of the upper mainboard mounting ring, and a lower mainboard mounting ring is fixedly mounted on the bottom of the connecting frame; the four corners of the lower mainboard mounting ring are respectively slidably mounted on the inner sides of four sliding limit blocks; the optocoupler mainboard is respectively fixedly mounted on the upper mainboard mounting ring and the lower mainboard mounting ring; the push rod is fixedly mounted on the upper mainboard mounting ring; two movable magnets are provided, and the two movable magnets are respectively fixedly mounted on the upper mainboard mounting ring and the lower mainboard mounting ring; the movable magnet on the upper mainboard mounting ring is located at the top, and the movable magnet on the lower mainboard mounting ring is located at the bottom; the movable magnet at the bottom is magnetically connected to the lower fixed magnet; the thickness of the sliding limit groove is greater than the push limit plate.

[0008] Preferably, the expansion control component includes: an expansion piston cylinder, a lifting piston column, a thrust limit plate and mercury, the expansion piston cylinder is fixedly mounted on the bottom plate; a lifting piston column is slidably mounted inside the expansion piston cylinder; a thrust limit plate is fixedly mounted on the lifting piston column; mercury is arranged inside the expansion piston cylinder, and the mercury is located at the bottom of the lifting piston column.

[0009] Preferably, the pulling auxiliary component includes: a lifting connection plate and a tension spring, two lifting connection plates are fixedly installed on the connecting frame; tension springs are fixedly installed on both sides of the two lifting connection plates; and the ends of the two tension springs at the bottom are fixedly installed on the top of the bottom plate.

[0010] Preferably, the exhaust component comprises: an exhaust pipe and an exhaust bellows, wherein the exhaust pipe is fixedly mounted on a closed fixed plate; the exhaust pipe is located outside the fixed closed plate; and the exhaust bellows is fixedly mounted on the exhaust pipe.

[0011] Preferably, the relay housing also includes: a base plate, heat dissipation fins, a lower fixed magnet and a sliding limit block, the base plate is fixedly installed on the bottom of the mounting housing; a row of heat dissipation fins is fixedly installed on the bottom of the base plate; the lower fixed magnet is fixedly embedded in the base plate; four sliding limit blocks are fixedly installed inside the mounting housing, and the four sliding limit blocks are used for slidingly installing the lifting and lowering switching parts.

[0012] Preferably, the closed connecting piece includes: a closed fixing plate, an upper fixed magnet, a fixed closing plate and an alarm light, the closed fixing plate is fixedly installed on the mounting shell; an upper fixed magnet is fixedly installed on the bottom of the closed fixing plate; the upper fixed magnet corresponds to the movable magnet; the closed fixing plate is connected to two tension springs on the top; a fixed closing plate is fixedly installed in the middle of the closed fixing plate; a circle of through grooves is provided on the fixed closing plate; an alarm light is fixedly installed on the closed fixing plate; the fixed closing plate is used for exhaust ventilation.

[0013] Preferably, the switch control device includes: a cooling control slide column, a closing plate, a micro switch and a connecting tension spring, the cooling control slide column is slidably mounted on the fixed closing plate; a closing plate is fixedly mounted on the top of the cooling control slide column; a circle of through grooves is provided on the closing plate; the cooling control slide column is a hexagonal column structure; a circle of through grooves is provided on the closing plate and is staggered with a circle of through grooves provided on the fixed closing plate; a micro switch is fixedly mounted on the bottom of the cooling control slide column; the micro switch is located above the top rod; the connecting tension spring is sleeved on the cooling control slide column; the connecting tension spring is connected between the closing plate and the fixed closing plate; the micro switch is electrically connected to the alarm light.

[0014] Temperature control method of solid-state relay with temperature control function:

[0015] 1) When the photoelectric coupler mainboard is overheated and causes mercury to expand, the lifting piston column is driven to rise, and the limit plate is pushed inside the sliding limit groove to push the upper mainboard mounting ring to rise, driving the photoelectric coupler mainboard below to move up. At this time, the terminal connection board below moves up to contact the elastic terminal piece for connection. At this time, the photoelectric coupler mainboard below is switched to use the coupling control work, and the photoelectric coupler mainboard above can be cooled down;

[0016] 2) Mercury expands due to heat, driving the lifting switch member upward, pushing the cooling control sliding column to drive the closing plate and the fixed closing plate to separate. At this time, the closing plate and the fixed closing plate are no longer attached to each other, and the through grooves between the closing plate and the fixed closing plate realize ventilation and cooling.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention adopts a lifting switching component, and the lifting structure of the lifting switching component can be used to replace two photoelectric coupler main boards. After the photoelectric coupler main board is short-circuited, damaged and heated, it can be replaced, which can improve the service life. In particular, it can be replaced for power connection needs that require real-time control. At the same time, it can also be rotated for use after the photoelectric coupler main board is overheated, so that its temperature can be reduced more directly, avoiding the problem of slow heat dissipation when there is a load on the photoelectric coupler main board. The alternating use of the two photoelectric coupler main boards also improves durability.

[0019] The use of a pulling auxiliary part in conjunction with a movable magnet, a lower fixed magnet and an upper fixed magnet can improve the lifting and switching speed and stability of the lifting and switching part. The magnetic attraction positioning structure is used to ensure stable power connection, and the tension spring used at the same time plays a buffering role.

[0020] The use of exhaust parts can facilitate the exhaust and cooling work. At the same time, the exhaust bellows can be used to directly pass through the electrical cabinet, which can assist in the role of explosion-proof extraction and avoid the problem of excessive pressure inside the electrical cabinet when special accidents such as explosion occur in this structure. The use of alarm lights can enable this structure to perform explosion-proof prompt work and prompt an alarm when replacing the optocoupler mainboard.

[0021] By adopting a switch control device and utilizing a temperature-reducing control sliding column, the sliding column can be squeezed and slid for explosion-proof work, and a completely sealed relay can be prevented from exploding due to excessive internal pressure when overheated. By utilizing an elastic connection of a connecting tension spring, when there is air pressure inside the structure, the closing plate can be separated from the fixed closing plate for discharge. At the same time, when the mercury expands due to heat and drives the lifting switching member to move upward, the closing plate can be automatically controlled to separate from the fixed closing plate, thereby performing active heat dissipation work and making heat dissipation more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the position of the terminal connection board of the present invention;

[0025] Figure 4 It is a cross-sectional view of the exhaust component structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the relay housing of the present invention;

[0027] Figure 6 For the present invention Figure 4 A magnified view of the structure of the middle B area;

[0028] Figure 7This is a schematic diagram of the expansion control member structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the lifting and switching member of the present invention;

[0030] Fig. 9 For the present invention Figure 7 A magnified view of the structure of the middle C region;

[0031] Fig.10 It is a schematic diagram of the structure of the closed connector of the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the switch control device of the present invention.

[0033] In the figure: 1. Relay housing; 101. Mounting housing; 1011. Elastic terminal piece; 102. Bottom plate; 1021. Heat dissipation fin; 103. Lower fixed magnet; 104. Sliding stop block; 2. Expansion control member; 201. Expansion piston cylinder; 202. Lifting piston column; 203. Pushing stop plate; 204. Mercury; 3. Lifting switch member; 301. Upper mainboard mounting ring; 3011. Sliding stop groove; 302. Connecting frame; 303. Lower mainboard mounting ring; 304. Photoelectric coupler mainboard; 305. Push rod; 306, movable magnet; 4, terminal contact piece; 401, terminal connection board; 402, insulating strip; 5, pulling auxiliary piece; 501, lifting connection plate; 502, tension spring; 6, closed connection piece; 601, closed fixed plate; 602, upper fixed magnet; 603, fixed closed plate; 604, alarm light; 7, exhaust piece; 701, exhaust pipe; 702, exhaust bellows; 8, switch control device; 801, cooling control slide column; 802, closing plate; 803, micro switch; 804, connecting tension spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1-Figure 11 As shown:

[0036] The present invention provides a technical solution: a solid-state relay with a temperature control function and a temperature control method thereof, comprising a relay housing 1, on which four expansion control components 2 are installed, and the four expansion control components 2 are used for thermal expansion; a lifting switch component 3 is installed inside the relay housing 1; the four expansion control components 2 are used to control the lifting and lowering of the lifting switch component 3; two terminal contact components 4 are installed on the lifting switch component 3, and the two terminal contact components 4 are respectively attached to the relay housing 1; two pulling auxiliary components 5 are installed on the lifting switch component 3; a closed connecting component 6 is fixedly installed on the relay housing 1 ; Two pulling auxiliary parts 5 are connected to the bottom of the closed connecting part 6; an exhaust part 7 is installed on the closed connecting part 6; the exhaust part 7 is used for cooling and ventilation; a switch control device 8 is installed on the exhaust part 7; the switch control device 8 is used to control the heat dissipation and cooling switch; the relay housing part 1 includes: an installation housing 101 and an elastic terminal piece 1011, four elastic terminal pieces 1011 are fixedly installed on the inner side of the installation housing 101; and the four elastic terminal pieces 1011 are grouped in pairs; four wiring terminals are provided on the installation housing 101; the four elastic terminal pieces 1011 are respectively connected to the wiring terminals on the installation housing 101.

[0037] The relay housing 1 further comprises: a bottom plate 102, a heat dissipation fin 1021, a lower fixed magnet 103 and a sliding stop block 104. The bottom plate 102 is fixedly mounted on the bottom of the mounting housing 101; a row of heat dissipation fins 1021 is fixedly mounted on the bottom of the bottom plate 102; the lower fixed magnet 103 is fixedly embedded on the bottom plate 102; four sliding stop blocks 104 are fixedly mounted inside the mounting housing 101, and the four sliding stop blocks 104 are used for slidingly mounting the lifting switch member 3; the expansion control member 2 comprises: an expansion piston cylinder 201, a lifting switch member 31; a lifting switch member 32; a lifting switch member 33; a lifting switch member 34; a lifting switch member 35; a lifting switch member 36; a lifting switch member 37; a lifting switch member 38; a lifting switch member 39; a lifting switch member 31; a lifting switch member 31; a lifting switch member 32; a lifting switch member 34; a lifting switch member 36; a lifting switch member 37; a lifting switch member 38; a lifting switch member 39 ... The lowering piston column 202, the advancing limiting plate 203 and the mercury 204, the expansion piston cylinder 201 is fixedly installed on the bottom plate 102; the lifting piston column 202 is slidably installed inside the expansion piston cylinder 201; the advancing limiting plate 203 is fixedly installed on the lifting piston column 202; the expansion piston cylinder 201 is provided with mercury 204, and the mercury 204 is located at the bottom of the lifting piston column 202; the lifting switching member 3 includes: an upper mainboard mounting ring 301, a sliding limiting groove 3011, a connecting frame 302, a lower mainboard mounting ring 303, a photoelectric coupler main The plate 304, the push rod 305 and the movable magnet 306, the thickness of the sliding limit groove 3011 is greater than the pushing limit plate 203, and the four corners of the upper mainboard mounting circle 301 are respectively slidably mounted on the inner side of the four sliding limit blocks 104; four sliding limit grooves 3011 are opened on the upper mainboard mounting circle 301, and the pushing limit plates 203 are respectively slidably mounted in the four sliding limit grooves 3011; the bottom of the upper mainboard mounting circle 301 is fixedly mounted with a connecting frame 302, and the bottom of the connecting frame 302 is fixedly mounted with a lower mainboard mounting circle 303; the lower mainboard mounting circle The four corners of 303 are slidably mounted on the inner sides of the four sliding limit blocks 104; the photoelectric coupler mainboard 304 is fixedly mounted on the upper mainboard mounting circle 301 and the lower mainboard mounting circle 303; the ejector 305 is fixedly mounted on the upper mainboard mounting circle 301; two movable magnets 306 are provided, and the two movable magnets 306 are fixedly mounted on the upper mainboard mounting circle 301 and the lower mainboard mounting circle 303 respectively; the movable magnet 306 on the upper mainboard mounting circle 301 is located at the top, and the movable magnet 306 on the lower mainboard mounting circle 303 is located at the bottom;The bottom movable magnet 306 is magnetically connected to the lower fixed magnet 103, and adopts a lifting switch member 3. The lifting switch member 3 can be used to replace the two photoelectric coupler main boards 304. The photoelectric coupler main board 304 can be replaced after it is short-circuited, damaged, and heated. The service life can be improved, especially for the power connection requirements that require real-time control. The replacement work can be carried out. At the same time, the photoelectric coupler main board 304 can be rotated for use after it is overheated, so that its temperature can be reduced more directly, avoiding the problem of slow heat dissipation when there is a load on the photoelectric coupler main board 304. The alternating use of the two photoelectric coupler main boards 304 also improves durability and is beneficial. The expansion control member 2 can be used to perform expansion control work, which can ensure the rationality of telescopic control, without electricity, and ensure the control effect, which is more direct. When the photoelectric coupler mainboard 304 is overheated and causes the mercury 204 to expand, the lifting piston column 202 can be driven to rise, and the upper mainboard mounting ring 301 can be pushed up by pushing the limit plate 203 inside the sliding limit groove 3011. At this time, the terminal connection board 401 below moves up to contact and fit the elastic terminal piece 1011 for connection work. At this time, the structure can use the photoelectric coupler mainboard 304 below to perform coupling control work, and the photoelectric coupler mainboard 304 above can be disconnected to achieve the purpose of cooling. ;

[0038] Among them, the terminal contact member 4 includes: a terminal connection board 401 and an insulating strip 402, and a group of terminal connection boards 401 are electrically connected to the two sides of the two photocoupler main boards 304, and each group of terminal connection boards 401 consists of two terminals; the terminal connection boards 401 between the two photocoupler main boards 304 are separated by an insulating strip 402; the insulating strip 402 is embedded between two adjacent terminal connection boards 401; four groups of terminal connection boards 401 are fixedly mounted on both sides of the connecting frame 302; four elastic terminal pieces 1011 elastically fit the four terminals on the two upper terminal connection boards 401; the pulling auxiliary member 5 includes: a lifting connecting plate 501 and a tension spring 502, two lifting connecting plates 501 are fixedly mounted on the connecting frame 302; tension springs 502 are fixedly mounted on both sides of the two lifting connecting plates 501; the ends of the two tension springs 502 at the bottom are fixedly mounted on the top of the bottom plate 102; the pulling auxiliary member is adopted 5 cooperates with the movable magnet 306, the lower fixed magnet 103 and the upper fixed magnet 602, so as to improve the lifting and switching speed and stability of the lifting and switching member 3. The magnetic attraction positioning structure is used to ensure the stability of the power connection. At the same time, the tension spring 502 is used to play a buffering and pulling role when the connecting frame 302 moves. The structure is simple and practical. The independent terminal power board 401 can be used through the terminal contact member 4. In combination with the elastic terminal piece 1011, the power connection is direct and efficient, and can be automatically adjusted with the rise and fall of temperature. Under the attraction of the upper fixed magnet 602 and the lower fixed magnet 103, the closer movable magnet 306 can be magnetically attracted to accelerate the switching work, which is more practical. The characteristic that the thickness of the sliding limit groove 3011 is greater than the pushing limit plate 203 is used. When the pushing limit plate 203 descends or rises to toggle the sliding limit groove 3011, the magnetic attraction positioning of the mainboard mounting ring 301 through the movable magnet 306 is not affected.

[0039] Among them, the closed connecting member 6 includes: a closed fixing plate 601, an upper fixed magnet 602, a fixed closing plate 603 and an alarm light 604, the closed fixing plate 601 is fixedly installed on the mounting shell 101; an upper fixed magnet 602 is fixedly installed at the bottom of the closed fixing plate 601; the upper fixed magnet 602 corresponds to the movable magnet 306; the closed fixing plate 601 is connected to the two tension springs 502 at the top; a fixed closing plate 603 is fixedly installed in the middle of the closed fixing plate 601; a circle of through grooves is provided on the fixed closing plate 603; an alarm light 604 is fixedly installed on the closed fixing plate 601; the fixed closing plate 603 is used for exhaust ventilation; the exhaust member 7 includes: an exhaust pipe 701 and an exhaust wave The bellows 702 and the exhaust pipe 701 are fixedly mounted on the closed fixing plate 601; the exhaust pipe 701 is located outside the fixed closed plate 603; the exhaust pipe 701 is fixedly mounted with an exhaust bellows 702, and the exhaust component 7 is used to facilitate the exhaust cooling work. At the same time, the exhaust bellows 702 can be used to directly pass through the electrical cabinet, which can assist in the role of explosion-proof extraction and avoid the problem of excessive pressure inside the electrical cabinet when special accidents such as deflagration occur. At the same time, the exhaust pipe 701 is used in conjunction with the heat dissipation fins 1021 to achieve accelerated heat dissipation when overheating occurs. The alarm light 604 is used to enable the present structure to perform explosion-proof prompt work, and an alarm is prompted when the optocoupler mainboard 304 is replaced.

[0040] Embodiment 2, on the basis of embodiment 1, the switch control device 8 comprises: a cooling control slide column 801, a closing plate 802, a micro switch 803 and a connecting tension spring 804, the cooling control slide column 801 is slidably mounted on the fixed closing plate 603; a closing plate 802 is fixedly mounted on the top of the cooling control slide column 801; a circle of through grooves is arranged on the closing plate 802; the cooling control slide column 801 is a hexagonal column structure; a circle of through grooves is arranged on the closing plate 802 and is staggered with a circle of through grooves opened on the fixed closing plate 603; a micro switch 803 is fixedly mounted on the bottom of the cooling control slide column 801; the micro switch 803 is located above the top rod 305; the connecting tension spring 804 is sleeved on the cooling control slide column 801; the connecting tension spring 804 is connected between the closing plate 802 and the fixed closing plate 603, and the switch control device 8 is adopted, and the cooling control slide column 801 is used to realize the explosion-proof work by being squeezed and sliding, which can prevent To prevent a completely sealed relay from exploding due to excessive internal pressure when overheated, an elastic connection is made using the connecting tension spring 804; the microswitch 803 is electrically connected to the alarm light 604, and when there is air pressure inside the structure, it can be discharged in time. At the same time, when the mercury 204 expands due to heat and drives the lifting and switching member 3 to move up, the closing plate 802 can be automatically controlled to separate from the fixed closing plate 603, so as to perform active heat dissipation, which is more reasonable and more efficient. The length of the exhaust bellows 702 can be adjusted according to demand. When the mercury 204 expands due to heat and drives the lifting and switching member 3 to move up, the push rod 305 can be driven to squeeze the microswitch 803 first. At this time, the microswitch 803 can control the alarm light 604 to light up and alarm, and at the same time, the closing plate 802 can be pushed to separate from the fixed closing plate 603. At this time, the closing plate 802 and the fixed closing plate 603 are no longer attached to each other, and the through groove is also connected, so that air circulation is achieved and cooling is accelerated.

[0041] Temperature control method of solid-state relay with temperature control function:

[0042] 1) When the photoelectric coupler mainboard 304 is overheated and the mercury 204 expands, the lifting piston column 202 is driven to rise, and the limit plate 203 is pushed inside the sliding limit groove 3011 to push the upper mainboard mounting ring 301 to rise, driving the lower photoelectric coupler mainboard 304 to move up. At this time, the lower terminal connection board 401 moves up to contact the elastic terminal piece 1011 for connection. At this time, the lower photoelectric coupler mainboard 304 is switched to be used for coupling control, and the upper photoelectric coupler mainboard 304 can be cooled down;

[0043] 2) Mercury 204 expands due to heat, driving the lifting switch member 3 to move upward, pushing the cooling control sliding column 801 to drive the closing plate 802 to separate from the fixed closing plate 603. At this time, the closing plate 802 and the fixed closing plate 603 are no longer attached to each other, and the through grooves of the closing plate 802 and the fixed closing plate 603 realize ventilation and cooling.

[0044] The working principle of this embodiment is as follows: first, the installation shell 101 is installed in a location such as an electrical cabinet, and the four wiring terminals on the installation shell 101 are connected to electricity. When the photoelectric coupler mainboard 304 is overheated and causes the mercury 204 to expand, the lifting piston column 202 can be driven to rise, and the upper mainboard mounting ring 301 can be pushed up by pushing the limit plate 203 inside the sliding limit groove 3011, thereby driving the lower photoelectric coupler mainboard 304 to move up. At this time, the terminal power board 401 at the bottom moves up to contact the elastic terminal piece 1011 for connection. At this time, the structure can use the lower photoelectric coupler mainboard 304 for coupling control, and the upper photoelectric coupler mainboard 304 can be disconnected to achieve the purpose of cooling; when the mercury 204 heats up and expands, or cools down and contracts, the limit plate 203 can be driven to be lifted and lowered, and the upper mainboard mounting ring 301 and the lower mainboard mounting ring 303 are driven to be lifted and lowered, and the two movable magnets 306 move at the same time, and the upper fixed magnet Under the attraction of the iron 602 and the lower fixed magnet 103, the movable magnet 306 on one side can be magnetically attracted when the movable magnet 306 approaches, thereby accelerating the switching operation; when there is internal pressure in the present structure, the elastic connection of the tension spring 804 is connected, and the air pressure can push the closing plate 802 to separate from the fixed closing plate 603. At this time, the closing plate 802 and the fixed closing plate 603 are no longer attached to each other, and the through groove thereof is also connected, so that the air pressure can be discharged in time, and the length of the exhaust bellows 702 can be adjusted according to the needs. When the mercury 204 expands due to heat and drives the lifting switch part 3 to move upward, it can drive the push rod 305 to squeeze the micro switch 803 first. At this time, the micro switch 803 can control the alarm light 604 to light up and alarm. By continuously moving the lifting switch part 3 upward, the temperature reduction control sliding column 801 can be pushed, thereby pushing the closing plate 802 to separate from the fixed closing plate 603. At this time, the closing plate 802 and the fixed closing plate 603 are no longer attached to each other, and the through grooves of the closing plate 802 and the fixed closing plate 603 realize ventilation and cooling.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid-state relay with a temperature control function, comprising a relay housing (1), wherein four expansion control components (2) are mounted on the relay housing (1), wherein: A lifting switch component (3) is installed inside the relay housing component (1); the four expansion control components (2) are used to control the lifting and lowering of the lifting switch component (3); The expansion control member (2) comprises: an expansion piston cylinder (201), a lifting piston column (202), a push-stop plate (203) and mercury (204); the lifting piston column (202) is slidably mounted inside the expansion piston cylinder (201); the lifting piston column (202) is fixedly mounted with a push-stop plate (203); mercury (204) is arranged inside the expansion piston cylinder (201), and the mercury (204) is located at the bottom of the lifting piston column (202); The lifting and switching member (3) comprises: an upper mainboard mounting ring (301), a sliding limit groove (3011), a connecting frame (302), a lower mainboard mounting ring (303), a photoelectric coupler mainboard (304), a push rod (305) and a movable magnet (306); When the photoelectric coupler mainboard (304) is overheated and causes the mercury (204) to expand, the lifting piston column (202) is driven to rise, and the limiting plate (203) is pushed inside the sliding limiting groove (3011) to push the upper mainboard mounting ring (301) to rise, driving the lower photoelectric coupler mainboard (304) to move upward. At this time, the lower photoelectric coupler mainboard (304) is switched to perform coupling control work, and the upper photoelectric coupler mainboard (304) can be cooled.

2. The solid-state relay with temperature control function according to claim 1, characterized in that: Two terminal contact members (4) are installed on the lifting and lowering switching member (3), and the two terminal contact members (4) are respectively attached to the relay housing member (1); Two pulling auxiliary parts (5) are installed on the lifting and lowering switching part (3); A closed connecting piece (6) is fixedly mounted on the relay housing (1); the bottom of the closed connecting piece (6) is connected to two pulling auxiliary pieces (5); An exhaust component (7) is installed on the closed connecting component (6); the exhaust component (7) is used for cooling and ventilation; A switch control device (8) is installed on the exhaust member (7); the switch control device (8) is used to control the heat dissipation and temperature reduction switch; The relay housing (1) comprises: a mounting housing (101) and an elastic terminal piece (1011); four elastic terminal pieces (1011) are fixedly mounted on the inner side of the mounting housing (101); and the four elastic terminal pieces (1011) are grouped in pairs; four connection terminals are arranged on the mounting housing (101); and the four elastic terminal pieces (1011) are respectively connected to the connection terminals on the mounting housing (101).

3. The solid-state relay with temperature control function according to claim 2, characterized in that: The relay housing (1) further comprises: a bottom plate (102), heat dissipation fins (1021), a lower fixed magnet (103) and a sliding stop block (104); the bottom plate (102) is fixedly mounted on the bottom of the mounting housing (101); a row of heat dissipation fins (1021) is fixedly mounted on the bottom of the bottom plate (102); the lower fixed magnet (103) is fixedly embedded in the bottom plate (102); four sliding stop blocks (104) are fixedly mounted inside the mounting housing (101), and the four sliding stop blocks (104) are used for slidingly mounting the lifting switching member (3); the expansion piston cylinder (201) is fixedly mounted on the bottom plate (102).

4. The solid-state relay with temperature control function according to claim 3, characterized in that: The four corners of the upper mainboard mounting ring (301) are respectively slidably mounted on the inner sides of the four sliding limit blocks (104); the upper mainboard mounting ring (301) is provided with four sliding limit grooves (3011), and the four sliding limit grooves (3011) are respectively slidably mounted with a push limit plate (203); a connecting frame (302) is fixedly mounted on the bottom of the upper mainboard mounting ring (301), and a lower mainboard mounting ring (303) is fixedly mounted on the bottom of the connecting frame (302); the four corners of the lower mainboard mounting ring (303) are respectively slidably mounted on the inner sides of the four sliding limit blocks (104); the upper mainboard mounting ring (301) and the lower mainboard mounting ring (303) are connected to each other. The upper and lower mainboard mounting rings (301) are fixedly mounted with photoelectric coupler mainboards (304); the push rod (305) is fixedly mounted on the upper mainboard mounting ring (301); two movable magnets (306) are provided, and the two movable magnets (306) are fixedly mounted on the upper mainboard mounting ring (301) and the lower mainboard mounting ring (303) respectively; the movable magnet (306) on the upper mainboard mounting ring (301) is located at the top, and the movable magnet (306) on the lower mainboard mounting ring (303) is located at the bottom; the movable magnet (306) at the bottom is magnetically connected to the lower fixed magnet (103); the thickness of the sliding limit groove (3011) is greater than the pushing limit plate (203).

5. The solid-state relay with temperature control function according to claim 4, characterized in that: The terminal contact member (4) comprises: a terminal connection board (401) and an insulating strip (402); a group of terminal connection boards (401) are electrically connected to the two sides of the two photoelectric coupler main boards (304), and each group of terminal connection boards (401) consists of two terminals; the terminal connection boards (401) between the two photoelectric coupler main boards (304) are separated by an insulating strip (402); the insulating strip (402) is embedded between two adjacent terminal connection boards (401); four groups of terminal connection boards (401) are fixedly mounted on the two sides of the connecting frame (302); and the four elastic terminal pieces (1011) are elastically attached to the four terminals on the two upper terminal connection boards (401).

6. The solid-state relay with temperature control function according to claim 5, characterized in that: The pulling auxiliary component (5) comprises: a lifting connection plate (501) and a tension spring (502); two lifting connection plates (501) are fixedly mounted on the connection frame (302); tension springs (502) are fixedly mounted on both sides of the two lifting connection plates (501); and the ends of the two tension springs (502) at the bottom are fixedly mounted on the top of the bottom plate (102).

7. The solid-state relay with temperature control function according to claim 6, characterized in that: The closed connecting member (6) comprises: a closed fixing plate (601), an upper fixed magnet (602), a fixed closed plate (603) and an alarm light (604); the closed fixed plate (601) is fixedly mounted on the mounting shell (101); an upper fixed magnet (602) is fixedly mounted on the bottom of the closed fixing plate (601); the upper fixed magnet (602) corresponds to the movable magnet (306); the closed fixed plate (601) is connected to two tension springs (502) at the top; a fixed closed plate (603) is fixedly mounted in the middle of the closed fixing plate (601); a circle of through grooves is provided on the fixed closed plate (603); an alarm light (604) is fixedly mounted on the closed fixing plate (601); the fixed closed plate (603) is used for exhaust ventilation.

8. The solid-state relay with temperature control function according to claim 7, characterized in that: The exhaust component (7) comprises: an exhaust pipe (701) and an exhaust bellows (702); the exhaust pipe (701) is fixedly mounted on a closed fixed plate (601); the exhaust pipe (701) is located outside the fixed closed plate (603); and the exhaust bellows (702) is fixedly mounted on the exhaust pipe (701).

9. The solid-state relay with temperature control function according to claim 8, characterized in that: The switch control device (8) comprises: a cooling control slide column (801), a closing plate (802), a micro switch (803) and a connecting tension spring (804); the cooling control slide column (801) is slidably mounted on a fixed closing plate (603); a closing plate (802) is fixedly mounted on the top of the cooling control slide column (801); a circle of through grooves is provided on the closing plate (802); the cooling control slide column (801) is a hexagonal column structure; the closing plate (802) is provided with a The circular through groove is offset from a circular through groove provided on the fixed closing plate (603); a micro switch (803) is fixedly installed at the bottom of the cooling control sliding column (801); the micro switch (803) is located above the top rod (305); the micro switch (803) is electrically connected to the alarm light (604); the connecting tension spring (804) is sleeved on the cooling control sliding column (801); the connecting tension spring (804) is connected between the closing plate (802) and the fixed closing plate (603).

10. A temperature control method for a solid-state relay with a temperature control function, applied to the solid-state relay with a temperature control function as claimed in claim 9; characterized in that: The steps include: 1) When the photoelectric coupler mainboard (304) is overheated and causes the mercury (204) to expand, the lifting piston column (202) is driven to rise, and the limit plate (203) is pushed inside the sliding limit groove (3011) to push the upper mainboard mounting ring (301) to rise, driving the lower photoelectric coupler mainboard (304) to move upward. At this time, the lower terminal connection board (401) moves upward to contact the elastic terminal piece (1011) for connection. At this time, the lower photoelectric coupler mainboard (304) is switched to use for coupling control, and the upper photoelectric coupler mainboard (304) can be cooled; 2) Mercury (204) expands due to heat, driving the lifting switch member (3) to move upward, pushing the cooling control slide column (801) to drive the closing plate (802) and the fixed closing plate (603) to separate. At this time, the closing plate (802) and the fixed closing plate (603) are no longer attached to each other, and the through grooves of the closing plate (802) and the fixed closing plate (603) realize ventilation and cooling.

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