Solid-state relay with disconnection alarm function

Abstract

The utility model discloses a solid-state relay with a disconnection alarm function, which comprises a relay main body, a radiator arranged at the bottom of the relay main body, and a connecting mechanism arranged at the bottom of the relay main body and used for connecting the relay main body with a guide rail, a clamping piece for connecting the connecting plate and the radiator is arranged between the top of the connecting plate and the bottom of the radiator; and the multiple rail clamping plates are symmetrically arranged at the bottom of the connecting plate in the horizontal transverse direction, and reset pieces are arranged between the connecting positions of the rail clamping plates and the connecting plate. According to the utility model, the connection mechanism of the relay is improved in design, the connection plate is connected with the radiator of the relay, and then the slidable rail clamping plates are arranged at the bottom of the connection plate, so that the distance between the rail clamping plates can be adjusted by utilizing the characteristic that the rail clamping plates can slide; therefore, the sleeve connection between the rail clamping plate and the guide rail can be realized at any position, so that the relay is more flexible and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the field of relays, in particular to a solid-state relay with a disconnection alarm function. Background Art

[0002] A solid-state relay is a switching device that uses semiconductor devices to achieve electrical isolation between input and output. Compared with traditional electromagnetic relays, solid-state relays have no mechanical moving parts and therefore have faster switching speeds, lower noise, longer service life, and better reliability. In order to ensure the safety of electrical transmission, solid-state relays with a disconnection alarm function are often used to ensure electrical transmission between semiconductor devices.

[0003] The existing solid-state relays of this type are installed in the distribution box by inserting the connector into the guide rail of the distribution box. In order to further stabilize the connection of the relay, screws are used to make a threaded connection with the guide rail. When inserting the connector into the guide rail, the hooks of the connector need to be inserted onto the guide rail from both ends, and then the relay is slid along the guide rail to the installation position for fixing. When multiple relays need to be installed, they are installed one by one. If the relay in the middle is damaged during use, the multiple relays at one end need to be removed. This operation method makes the installation of multiple relays very cumbersome. Utility Model Content

[0004] The purpose of the utility model is to provide a solid-state relay with a disconnection alarm function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a solid-state relay with a disconnection alarm function, comprising a relay body, a heat sink is provided at the bottom of the relay body, a connecting mechanism for connecting the relay body to a guide rail is provided at the bottom of the relay body, and the connecting mechanism comprises:

[0006] A connecting plate, wherein a clamping piece for connecting the top of the connecting plate and the bottom of the radiator is provided between the two;

[0007] A plurality of the rail plates are symmetrically arranged at the bottom of the connecting plate along a horizontal direction, and a reset member is arranged between the connecting portion of the rail plate and the connecting plate.

[0008] Preferably, wiring ports for connecting electricity are provided on both sides of the top of the relay body.

[0009] Preferably, a connecting bayonet is provided at the top of the connecting plate, and the bottom of the radiator is sleeved in the connecting bayonet via a clamping piece.

[0010] Preferably, the clamping member comprises a plurality of clamping blocks, the plurality of clamping blocks are respectively arranged on the inner walls on both sides of the clamping port, and the plurality of clamping blocks are respectively arranged on the front and back sides of both ends of the bottom of the radiator.

[0011] Preferably, a sliding opening is provided at the bottom end of the connecting plate, and the plurality of rail plates are slidably inserted and connected in the sliding opening, and an adjusting sliding groove for setting a reset member is provided on the inner wall at the top end of the sliding opening.

[0012] Preferably, the reset element comprises:

[0013] A guide slide bar, the two ends of which are respectively inserted and connected to the inner walls of the two sides of the adjusting slide groove, and the guide slide bar is used to guide the rail plate to slide horizontally;

[0014] A plurality of push springs are symmetrically sleeved on both ends of the guide slide rod along a horizontal and transverse direction.

[0015] Preferably, the tops of the plurality of rail plates are fixedly connected with movable sliders, and the plurality of movable sliders are sleeved on the outer wall of the guide slide rod.

[0016] Preferably, the plurality of movable sliders are all disposed between opposite ends of the plurality of push springs.

[0017] Technical effects and advantages of the utility model:

[0018] The utility model improves the design of the connection mechanism of the relay, firstly, it is connected with the heat sink of the relay through a connection plate, and then a sliding rail plate is arranged at the bottom of the connection plate. The sliding characteristic of the rail plate is utilized to adjust the distance between the rail plates, so that the sleeve connection between the rail plate and the guide rail can be realized at any position, making the disassembly and assembly of the relay more flexible and convenient. At the same time, in order to prevent the rail plate from falling off when installed with the guide rail, a reset piece is added to ensure that a plurality of rail plates are always kept close to each other, so that the rail plate can be sleeved tightly against the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a front view of the overall structure of the utility model.

[0021] Figure 3 It is a structural sectional view of the connecting mechanism of the utility model.

[0022] In the figure: 1. Relay body; 101. Wiring port; 2. Radiator; 3. Connecting plate; 301. Clamp; 302. Sliding port; 303. Adjusting slide; 4. Clamp block; 5. Clamp rail plate; 501. Moving slide; 6. Guide slide rod; 7. Push spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-3 The solid-state relay with disconnection alarm function shown comprises a relay body 1 , a heat sink 2 is arranged at the bottom of the relay body 1 , and wiring ports 101 for connecting electricity are provided on both sides of the top of the relay body 1 .

[0025] It should be noted that the overall design consisting of the relay body 1 and the heat sink 2 of this scheme refers to the relay model RD480-35A-L, in which the relay body 1 has a disconnection detection and alarm function, that is, a disconnection detection circuit is set inside the relay body 1, which can monitor the connection status of the load end in real time. If a disconnection is detected, the relay will trigger an alarm. When a disconnection is detected, the relay body 1 can provide an alarm output signal, usually a relay contact or an open collector output, which can be connected to an external alarm system or control system, and the heat sink 2 is used to provide heat dissipation to ensure the stable operation of the relay body 1.

[0026] The bottom of the relay body 1 is provided with a connecting mechanism for connecting the guide rail, and the connecting mechanism includes:

[0027] A connecting plate 3, a clamping piece for connecting the top of the connecting plate 3 and the bottom of the radiator 2 is provided between the two. The width of the connecting plate 3 needs to exceed the width of the bottom of the radiator 2 to ensure that the connecting plate 3 can completely wrap around the bottom of the radiator 2;

[0028] Specifically, a connecting bayonet 301 is provided at the top of the connecting plate 3, and the bottom of the radiator 2 is sleeved in the connecting bayonet 301 through a clamping piece. The clamping piece includes a plurality of clamping blocks 4, and the plurality of clamping blocks 4 are respectively arranged on the inner walls on both sides of the bayonet 301, and the plurality of clamping blocks 4 are respectively arranged on the front and back sides of the bottom ends of the radiator 2. The clamping blocks 4 can be made of flexible materials such as rubber, so as to facilitate the removal of the restrictive sleeve between the connecting plate 3 and the radiator 2 through the deformation of the clamping blocks 4.

[0029] A plurality of rail plates 5 are symmetrically arranged at the bottom of the connecting plate 3 along the horizontal direction, and a reset member is arranged between the connecting portion of the rail plates 5 and the connecting plate 3 .

[0030] Specifically, a sliding opening 302 is provided at the bottom end of the connecting plate 3, and a plurality of rail plates 5 are slidably inserted and connected in the sliding opening 302, and an adjusting sliding groove 303 for setting a reset member is provided on the inner wall at the top end of the sliding opening 302.

[0031] Further, the reset element includes:

[0032] A guide slide bar 6, the two ends of which are respectively inserted and connected to the inner walls of the two sides of the adjusting slide groove 303, and the guide slide bar 6 is used to guide the rail plate 5 to slide horizontally;

[0033] A plurality of push springs 7 are symmetrically sleeved on both ends of the guide slide rod 6 along a horizontal direction.

[0034] Furthermore, the tops of the multiple rail plates 5 are fixedly connected with movable sliders 501, the multiple movable sliders 501 are sleeved on the outer wall of the guide slide rod 6, and the multiple movable sliders 501 are arranged between the opposite ends of the multiple push springs 7.

[0035] It should be noted that when the connection mechanism and the guide rail are connected, the multiple rail plates 5 need to be pulled away from each other to increase the distance between the multiple rail plates 5 until the guide rail can be completely clamped. In the process of pulling the rail plates 5, the movable slider 501 is driven to slide. At this time, the movable slider 501 slides along the guide slide bar 6 and gradually squeezes the push spring 7.

[0036] After the multiple track plates 5 are symmetrically clamped on both sides of the guide rail, the pull on the track plates 5 is released. At this time, under the push of the restoring force of the push spring 7, the multiple movable sliders 501 respectively drive the multiple track plates 5 to approach each other, so that the track plates 5 can be tightly clamped on the surface of the guide rail, completing the clamping connection between the connecting mechanism and the guide rail.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid-state relay with a disconnection alarm function, comprising a relay body (1), wherein a heat sink (2) is provided at the bottom of the relay body (1). It is characterized in that The bottom of the relay body (1) is provided with a connection mechanism for connecting the relay body to a guide rail, and the connection mechanism comprises: A connecting plate (3), wherein a clamping piece for connecting the top of the connecting plate (3) and the bottom of the radiator (2) is provided between the two; A plurality of the track plates (5) are symmetrically arranged at the bottom of the connecting plate (3) along a horizontal direction, and a reset member is arranged between the connecting portion of the track plates (5) and the connecting plate (3).

2. The solid-state relay with disconnection alarm function according to claim 1, It is characterized in that Both sides of the top of the relay body (1) are provided with connection ports (101) for connecting electricity.

3. The solid-state relay with disconnection alarm function according to claim 1, It is characterized in that A connecting bayonet (301) is provided at the top of the connecting plate (3), and the bottom of the radiator (2) is sleeved in the connecting bayonet (301) via a clamping piece.

4. The solid-state relay with disconnection alarm function according to claim 3, It is characterized in that The clamping member comprises a plurality of clamping blocks (4), the plurality of clamping blocks (4) being respectively arranged on the inner walls on both sides of the clamping port (301), and the plurality of clamping blocks (4) being respectively arranged on the front and back sides of the bottom ends of the radiator (2).

5. The solid-state relay with disconnection alarm function according to claim 1, It is characterized in that A sliding opening (302) is provided at the bottom end of the connecting plate (3), and a plurality of the rail plates (5) are slidably inserted and connected in the sliding opening (302). An adjusting sliding groove (303) for setting a reset member is provided on the inner wall at the top end of the sliding opening (302).

6. The solid-state relay with disconnection alarm function according to claim 5, It is characterized in that The reset element comprises: A guide slide bar (6), the two ends of which are respectively inserted and connected to the inner walls of the two sides of the adjustment slide groove (303), and the guide slide bar (6) is used to guide the rail plate (5) to slide horizontally; A push spring (7), wherein a plurality of the push springs (7) are symmetrically sleeved on both ends of the guide slide rod (6) in a horizontal and transverse direction.

7. The solid-state relay with disconnection alarm function according to claim 6, It is characterized in that The tops of the plurality of rail plates (5) are all fixedly connected with movable sliders (501), and the plurality of movable sliders (501) are all sleeved on the outer wall of the guide slide rod (6).

8. The solid-state relay with disconnection alarm function according to claim 7, It is characterized in that The plurality of movable slide blocks (501) are all disposed between opposite ends of the plurality of push springs (7).

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