TWM452436U - Solid state relay - Google Patents

Description

solid state relay

This creation relates to a solid state relay, and more particularly to a solid state relay in which a solid state relay is mounted on a track of a switchboard by positioning components.

A solid state relay (SSR) is an electronic switching device that can control a large load current or voltage through a small current control signal, and can automatically adjust, protect, and convert circuits in the circuit. Important role. Solid-state relays differ from conventional circuit breakers or Electro-Magnetic Relays (EMRs) in that they use a non-mechanical switching mechanism. The switching principle is not based on physical moving parts. Move to achieve the effect of circuit switching. Most of today's solid-state relays use an optical coupling mechanism to achieve switching operation. They are internally provided with light-emitting elements such as light-emitting diodes (LEDs) and light-receiving elements such as photoelectric crystals to form an optical coupler. . The current generated by the photonic crystal can trigger a thyristor switch, such as a Silicon Controlled Rectifier (SCR) or a Triode for Alternating Current (TRIAC), so the solid state relay can It accepts a small current control signal input to drive the output of high voltage and high current, and has the effect of isolating the input and output terminals and controlling the high power output.

Referring now to the first figure, a perspective view of a conventional solid state relay is shown. As shown in the figure, the traditional solid state relay 500 is designed to be flat. The rectangular parallelepiped shape is provided with a pair of terminals 501 facing each other at the two ends, which are respectively used as the control end and the output end of the solid state relay, and the power connection can be locked on the terminals by screws and the like to establish electricity. Sexual links. The bottom of the solid state relay 500 is provided with a metal heat sink 503 for heat dissipation of the internal electronic components, and the surface of the housing 505 is marked with the specifications of the solid state relay, such as the control terminal and the output terminal, and the applicable Current or voltage range, etc. In a general implementation, the solid state relay is mounted on a switchboard (not shown) by means of a fixing hole 507 formed at the bottom thereof, and the control end is usually disposed through the flexible wiring and outside the distribution box. A manual switch (such as a mains switch button on the interior of the house) is electrically connected, and the output is connected to the load line by a copper strip or a soft wire on the power bus (such as a mains supply line or house). The lines in each zone are electrically connected. In one of the use cases, users who install solid-state relays at home can use the push switch to design the main switch button on the wall near the gate to achieve the effect of switching some or all of the mains power supply inside the house. It is not necessary to switch the circuit breaker to the distribution box as in the conventional way.

In practice, although the above-mentioned conventional solid state relay can provide users with good usability and convenience, the flat rectangular shape is not designed with reference to the general regulatory switchboard (multiple designs to install the circuit breaker) installation specifications. Therefore, in the actual installation, the traditional solid state relay may need to be equipped with a support structure such as an iron plate or a bracket on the switchboard to be stably installed, and it may not even be installed in some special distribution boxes or switchboards. Furthermore, designs that do not meet the specifications of general switchboards are also prone to The wiring in the electrical box is out of order, which is the lack of design for the traditional solid state relay. In addition, in the cooperation between the conventional relay and the conventional switchboard, due to the incompatibility between the outer shape and the size, the standard metal cover shielding cannot be used, and the terminal is exposed to the outside, thereby posing a risk of electric shock.

In view of the above-mentioned lack of design of the solid state relay, the present invention provides a novel solid state relay design, which is designed to be similar to a conventional fuseless circuit breaker for easy installation on a system switchboard. . The solid state relay also has a special heat sink to enhance the heat dissipation of its internal components, and can be mounted on one of the rails of the regulated switchboard through the heat sink and a positioning component.

The solid state relay of the present invention comprises: a housing having an accommodating space; at least one heat generating component disposed in the accommodating space of the housing; and a first heat dissipating component disposed in the accommodating space of the housing And the second heat dissipating member is disposed on the outer side of the casing; wherein at least part of the first heat dissipating member is exposed outside the casing and connected to the second heat dissipating component, the solid state relay It is connected to a switchboard upper board by a combination of a positioning component and the second heat sink.

Preferably, the positioning component comprises a fixing component, a sliding component and an elastic component, the elastic component is connected to the fixing component and the sliding component, the fixing component is connected to the second heat dissipation component, and the sliding component is Engaged on one of the tracks provided on the switchboard.

Preferably, the sliding member is provided with an operating portion, an opening, a first hook portion and an abutting top portion, and the fixing member is provided with a second hook portion, the sliding member The opening is sleeved through the second hook portion, and two ends of the elastic member are respectively connected to the first hook portion and the second hook portion.

Preferably, the second heat dissipating member is provided with a groove for engaging one of the tracks provided in the switchboard.

Preferably, the third heat dissipating member is connected to the portion of the first heat dissipating member exposed outside the casing, and the third heat dissipating member is made of a metal material or a material having a high thermal conductivity, such as aluminum. .

Preferably, the first heat dissipating member and the second heat dissipating member are made of a metal material or a material having a high thermal conductivity, such as aluminum.

Preferably, a circuit board is further disposed in the housing and electrically connected to the heat generating component.

Preferably, the housing has at least one pair of notches, each of which is formed at each end of the housing to be configured as an output end of the solid state relay and a control end, the output end is The control terminal is electrically connected to the circuit board inside the housing.

Preferably, the output is electrically connected to one of the power strips of the switchboard.

Preferably, the control terminal is electrically connected to a control switch.

Preferably, the housing is further provided with an indicator light electrically connected to the circuit board.

Preferably, the switchboard is a switchboard of the IEC60175 or EN50022 model.

Although the present invention will be fully described with reference to the drawings in which the preferred embodiments of the present invention are described, it should be understood that those skilled in the art can modify the creations described herein while achieving the effect of the present invention. therefore, It is to be understood that the above description is a broad disclosure of those skilled in the art and is not intended to limit the present invention.

First, please refer to the second and third figures, which respectively show an exploded view and a perspective view of the track in which the solid state relay of the present invention is mounted on a switchboard. The solid state relay 1 of the present invention comprises a casing 2 having a left side cover 21, an intermediate body 22 and a right side cover 23. The left side cover 21, the intermediate body 22 and the right side cover 23 are assembled into the housing 2 and then inside. An opening 221 is defined in the lower side of the intermediate body 22, and an opening 231 is defined in the right side cover 23; a circuit board 3 is disposed in the accommodating space of the housing 2; at least one heat generating component 4, is disposed in the accommodating space of the housing 2 and electrically connected to the circuit board 3, the heat generating component 4 can be a transistor; a first heat sink 5 is disposed in the accommodating space of the housing 2 and connected The heat generating component 4 is configured to dissipate the heat generating component 4, and the first heat radiating component 5 is partially exposed on the outer side of the casing 2 by the opening 221 of the intermediate body 22 and the opening 231 of the right side cover 23; The second heat dissipating member 6 is disposed on the lower side of the casing 2, and the second heat dissipating member 6 is connected to the screw hole 51 below the first heat dissipating member 5 by the cooperation of the screw hole 61 and the screw 62.

Preferably, the solid state relay 1 of the present invention further includes a third heat sink 7 connected to the right side of the first heat sink 5; more specifically, the third heat sink 7 is connected to The first heat sink 5 is exposed to a portion outside the casing 2 to accelerate heat dissipation. It is to be noted that the first heat dissipating member 5, the second heat dissipating member 6, and the third heat dissipating member 7 are made of a metal material or a material having a high thermal conductivity, and are preferably made of aluminum metal. The heat generated by the heat generating component 4 is first transmitted to the first heat sink 5, and the heat on the first heat sink 5 is transferred to the second heat sink 6 and the third, respectively. The heat sink 7 is used to dissipate heat.

The intermediate body 22 of the housing 2 has at least one pair of notches 222, and the notches 222 are respectively formed at opposite ends of the housing 2 to be configured as an output end 223 and a solid relay 1 The control terminal 224 is electrically connected to the control terminal 224 to the circuit board 3 inside the casing 2. The output end 223 is electrically connected to a power supply line (not shown) of a switchboard, and the control end 224 is electrically connected to a control switch (not shown). Preferably, the switchboard is a switchboard of the IEC60175 or EN50022 model.

Please refer to the fourth figure, which shows a side view of the second heat sink and the positioning assembly assembled to the track; the fifth figure shows an exploded view of the second heat sink and the positioning assembly and the track, and refers to the third figure. In the two figures, the housing 2 is omitted to facilitate a clear view of the connection relationship between the second heat sink 6, the positioning assembly 10 and the rail 20. The solid state relay 1 is coupled to the rail 20 of the switchboard by a combination of a positioning assembly 10 and the second heat sink 6. The positioning assembly 10 includes a fixing member 11 , a sliding member 12 and an elastic member 13 . The fixing member 11 is connected to the screw hole 63 of the second heat dissipating member 6 by the screw hole 111 and the screw 112 , so that the fixing member 11 is positioned below the second heat dissipating member 6 .

The sliding member 12 is provided with an operating portion 121, an opening 122, a first hook portion 123 and an abutting portion 124, and the fixing member 11 is provided with a second hook portion 113. The opening 122 of the sliding member 12 is sleeved over the second hook portion 113, so that the sliding member 12 is located above the fixing member 11, and the two ends of the elastic member 13 are respectively connected to the first hook portion 123 and the The second hook portion 113 is such that the slider 12 can slide relative to the fixing member 11. The rail 20 has a right side wall 201 and a left side wall 202, and the second heat sink 6 is provided with a groove 64. The right side wall 201 of the track 20 should be opposite. The right side wall 201 of the rail 20 is engaged with the groove 64 of the second heat dissipating member 6, and the abutting portion 124 of the sliding member 12 is abutted against the left side wall 202 of the rail 20.

Please refer to the sixth figure, which shows a side view of the sliding member of the positioning assembly moving to the left to disengage the second heat dissipating member from the rail; the seventh drawing shows an exploded view of the second heat dissipating member, the positioning assembly and the rail, and cooperates with See the third picture. In the two figures, the housing 2 is omitted to facilitate a clear view of the connection relationship between the second heat sink 6, the positioning assembly 10 and the rail 20. When the user pulls out the operating portion 121 to move the slider 12 to the left (as indicated by the arrow symbol), the elastic member 13 is compressed, and the top portion 124 of the slider 12 is also moved to the left. At this time, the distance between the abutting portion 124 of the sliding member 12 and the groove 64 of the second heat dissipating member 6 is widened, so that the rail 20 can be combined with the second heat dissipating member 6 and the positioning assembly 10 Get rid of. The second heat sink 6 and the positioning assembly 10 can be easily combined or disengaged from the rail 20 on the switchboard by the movement of the slider 12 of the positioning assembly 10.

In the solid state relay 1 of the present invention, a panel 225 and an indicator light (not shown) are further disposed on the top surface of the housing 2. The panel 225 can be a transparent panel of Mylar material or an aluminum material, and various indications about the solid state relay 1 can be printed on the front and back sides, such as product logo and model, description of each terminal, applicable control current type and range. The applicable output current type and range, etc., to provide information of the solid state relay 1 for user convenience. The indicator light is electrically connected to the internal circuit board 3, and the state of the solid state relay 1 can be indicated to the user through the color and the blinking frequency of the indicator light.

The advantage of the solid state relay of the present invention is that the solid state relay can be mounted on the track of the regulated switchboard through the cooperation of the heat sink and the positioning component. Wherein, the solid relay is disengaged or mounted on the track of the switchboard by the user operating the slider to move the slider outward (away from the track) or inward (near the track).

After a detailed description of the preferred embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope and spirit of Embodiments of the illustrated embodiments.

1‧‧‧Solid relay

2‧‧‧Shell

21‧‧‧left cover

22‧‧‧Intermediary ontology

221‧‧‧ openings

222‧‧‧ notch

223‧‧‧output

224‧‧‧Control end

225‧‧‧ panel

23‧‧‧ right side cover

231‧‧‧ openings

3‧‧‧Circuit board

4‧‧‧heating parts

5‧‧‧First heat sink

51‧‧‧ screw holes

6‧‧‧second heat sink

61‧‧‧ screw holes

62‧‧‧ screws

63‧‧‧ screw holes

64‧‧‧ trench

7‧‧‧ Third heat sink

10‧‧‧ Positioning components

11‧‧‧Fixed parts

111‧‧‧ screw holes

112‧‧‧ screws

113‧‧‧Second hook

12‧‧‧Sliding parts

121‧‧‧Operation Department

122‧‧‧Opening

123‧‧‧First hook

124‧‧‧ arrive at the top

13‧‧‧Flexible parts

20‧‧‧ Track

201‧‧‧ right wall

202‧‧‧ left wall

The first figure shows a perspective view of a conventional solid state relay.

The second figure shows an exploded view of the track in which the solid state relay of the present invention is mounted on a switchboard.

The third figure shows a perspective view of the track in which the solid state relay of the present invention is mounted on a switchboard.

The fourth figure shows a side view of the second heat sink and the positioning assembly assembled to the track.

The fifth figure shows an exploded view of the second heat sink and the positioning assembly and the track.

The sixth figure shows a side view of the slider of the positioning assembly moving to the left to disengage the second heat sink from the track.

The seventh figure shows an exploded view of the second heat sink, the positioning assembly and the track.

1‧‧‧Solid relay

2‧‧‧Shell

10‧‧‧ Positioning components

20‧‧‧ Track

Claims (12)

A solid state relay includes: a casing having an accommodating space; at least one heat generating component disposed in the accommodating space of the casing; and a first heat dissipating component disposed in the accommodating space of the casing and connected a heat sink; a second heat sink disposed on an outer side of the housing; wherein at least a portion of the first heat sink is exposed outside the housing and connected to the second heat sink, the solid state relay is A positioning component is assembled with the second heat sink to be connected to a switchboard. The solid state relay of claim 1, wherein the positioning component comprises a fixing member, a sliding member and an elastic member, the elastic member connecting the fixing member and the sliding member, wherein the fixing member is coupled to the fixing member a second heat sink, and the slider is coupled to a track provided on the switchboard. The solid state relay of claim 2, wherein the sliding member is provided with an operating portion, an opening, a first hook portion and an abutting top portion, and the fixing member is provided with a second hook portion, the sliding member The opening is sleeved through the second hook portion, and two ends of the elastic member are respectively connected to the first hook portion and the second hook portion. The solid state relay of claim 1, wherein the second heat dissipating member is provided with a groove for engaging a track provided in the switchboard. The solid state relay of claim 1, further comprising a third heat dissipating member connected to the portion of the first heat dissipating member exposed outside the casing, the third heat dissipating member being made of a metal material or high thermal conductivity Made of coefficient material, for example: aluminum. The solid state relay of claim 1, wherein the first heat sink and the second heat sink are made of a metal material or a material having a high thermal conductivity, such as aluminum. The solid state relay of claim 1, further comprising a circuit board mounted in the housing and electrically connected to the heat generating component. The solid state relay of claim 7, wherein the housing has at least one pair of notches, each of the slots being formed at each end of the housing to be configured as an output of the solid state relay And a control end, the output end and the control end are electrically connected to the circuit board inside the housing. The solid state relay of claim 8, wherein the output terminal is electrically connected to a power supply line of the power distribution panel. The solid state relay of claim 8, wherein the control terminal is electrically connected to a control switch. The solid state relay of claim 7, wherein the housing is further provided with an indicator light electrically connected to the circuit board. The solid state relay of claim 1, wherein the switchboard is a switchboard of the IEC60175 or EN50022 model.