One-way alternating-current solid-state relay

Abstract

The utility model relates to the field of solid-state relays, and discloses a one-way alternating-current solid-state relay, which comprises a solid-state relay body. The mounting mechanism is mounted on the solid-state relay body and is used for mounting the solid-state relay body on a guide rail; the installation mechanism comprises two bottom plates which are installed on the solid-state relay body, and the two bottom plates are arranged to be close to or far away from each other at the same time and used for being matched with guide rails of different sizes. According to the utility model, by designing the two bottom plates with the adjustable distance, the solid-state relay can be flexibly adapted to DIN guide rails with different sizes and specifications, the universality and market adaptability of the solid-state relay are improved, the supporting plate not only provides stable support for the bottom plates, but also can absorb vibration and impact to a certain extent, and the service life of the solid-state relay is prolonged. The base plate is firmly limited on the guide rail, so that the relay is prevented from sliding or falling off on the guide rail, and the stability and safety of installation are obviously improved.

Description

Technical Field

[0001] The utility model relates to the field of solid-state relays, in particular to a unidirectional AC solid-state relay. Background Art

[0002] A unidirectional AC solid-state relay (SSR) is a contactless switching device with relay characteristics that uses semiconductor devices instead of traditional electrical contacts as a switching mechanism. Relays are typically installed by docking with DIN rails via two fixed-spaced grooves at the bottom to enable quick and convenient deployment and maintenance. However, with the increasing variety and diversification of electrical equipment, existing SSR installation methods have gradually revealed some limitations, particularly in terms of adaptability and stability.

[0003] The sizes and specifications of DIN rails for electrical equipment of different brands and models often vary, with some equipment even using non-standard DIN rails. This variation poses a challenge to SSR installation, as the two docking grooves on traditional SSRs are of fixed size and difficult to adapt to DIN rails of varying sizes. In addition to compatibility issues, existing SSRs are prone to loosening after being installed on DIN rails. This is mainly due to the relatively simple connection between the SSR and DIN rail, which typically relies solely on friction between the groove and the rail for fixation. In working environments with high vibration or impact, this connection method may not provide sufficient stability, causing the SSR to shift or fall off, affecting the normal operation of the electrical equipment. Utility Model Content

[0004] To solve the above problems, the present invention is implemented through the following technical solutions: A unidirectional AC solid-state relay, comprising: a solid-state relay body; a mounting mechanism, mounted on the solid-state relay body, for mounting the solid-state relay body on a guide rail; the mounting mechanism comprises: two base plates, mounted on the solid-state relay body, the two base plates being configured to move closer or farther away from each other at the same time, for adapting to guide rails of different sizes; two support plates, respectively connected to the two base plates, the support plates being configured to be supported between the base plates and the guide rails, for stabilizing the position of the base plates on the guide rails.

[0005] The base plate includes two connecting plates which are mounted on the base plate and are symmetrically arranged. The connecting plates are used to limit the base plate on the guide rails.

[0006] The mounting mechanism also includes: two right-angle plates, respectively mounted on the two base plates, symmetrically arranged, and the support plate is mounted on the right-angle plates; an elastic member, mounted between the two right-angle plates, for providing a restoring force for the two base plates to maintain their initial positions; two guide rods, respectively mounted on the two right-angle plates, and the two ends of the elastic member are respectively connected to the two guide rods.

[0007] The connecting plate includes a limiting head mounted on the connecting plate, with an inclined surface formed on one side of the limiting head. The limiting head is used to limit the bottom plate on the guide rail.

[0008] The bottom plate further includes an ear plate installed on the bottom plate.

[0009] The solid-state relay body comprises: a groove, which is opened at the bottom of the solid-state relay body, and the bottom plate is arranged in the groove; a plurality of installation grooves, which are opened on the inner wall of the groove, and the bottom plate is connected to the installation grooves.

[0010] It also includes: a protective shell installed on the solid-state relay body, used to provide protection for the solid-state relay body.

[0011] The support plate is Z-shaped and elastic.

[0012] This utility model provides a unidirectional AC solid-state relay. Compared with existing technologies, it has the following advantages: By designing two base plates with adjustable spacing, the solid-state relay can flexibly adapt to DIN rails of different sizes and specifications, improving the versatility and market adaptability of the solid-state relay. The support plate installed on the right-angle plate not only provides stable support for the base plate but also absorbs vibration and shock to a certain extent, preventing the relay from sliding or falling off the rail. This significantly improves the stability and safety of installation and enhances the overall performance and reliability of the solid-state relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure from another perspective proposed by the utility model.

[0015] Figure 3 This is a structural diagram of the solid-state relay body and protective shell proposed in the utility model.

[0016] Figure 4 This is a schematic diagram of the installation mechanism structure proposed by the utility model.

[0017] Figure 5 This is a structural schematic diagram of the installation mechanism proposed by the utility model from another perspective.

[0018] Figure 6 This is a structural diagram of the base plate, connecting plate, supporting plate and limiting head proposed in the utility model.

[0019] Figure 7 This is a schematic diagram of the installation mechanism assembly proposed by the utility model.

[0020] The reference numerals in the figure are: 1. solid-state relay body; 101. groove; 102. mounting groove; 2. mounting mechanism; 201. bottom plate; 202. connecting plate; 203. right-angle plate; 204. elastic member; 205. guide rod; 206. support plate; 207. ear plate; 208. limit head; 209. inclined plane; 3. protective shell. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. 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 making any creative efforts are within the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 7 A unidirectional AC solid-state relay comprises: a solid-state relay body 1; a mounting mechanism 2 mounted on the solid-state relay body 1 and used to mount the solid-state relay body 1 on a guide rail; the mounting mechanism 2 comprises: two base plates 201 mounted on the solid-state relay body 1, the two base plates 201 being configured to be close to or away from each other at the same time, for adapting to guide rails of different sizes; two support plates 206 connected to the two base plates 201 respectively, the support plates 206 being configured to be supported between the base plates 201 and the guide rail, for stabilizing the position of the base plates 201 on the guide rail; the support plates 206 are Z-shaped, and the support plates 206 have an elastic The two base plates 201 are designed with adjustable spacing, which can flexibly adapt to guide rails of different sizes, thereby improving the versatility and installation convenience of the relay and reducing installation problems caused by guide rail size mismatch. After the base plate 201 is installed on the guide rail, the two support plates 206 provide a force for the base plate 201 to move away from the guide rail, and the limit heads 208 on the base plate 201 are stuck in the bends on both sides of the guide rail, so that the base plate 201 can be firmly connected to the guide rail. The two support plates 206 not only provide stable support, but also can absorb vibration and impact to a certain extent, protecting the solid-state relay body 1 from the influence of the external environment.

[0023] Reference Figure 2 、 Figure 4 and Figure 5The base plate 201 includes: two connecting plates 202, which are installed on the base plate 201 and are symmetrically arranged. The connecting plates 202 are used to limit the base plate 201 on the guide rail; ear plates 207, which are installed on the base plate 201. The ear plates 207 are used to further fix the base plate 201 or serve as a basis for installing other accessories, thereby enhancing the flexibility and functionality of the installation mechanism 2; the connecting plate 202 includes: a limiting head 208, which is installed on the connecting plate 202. A slope 209 is formed on one side of the limiting head 208. The limiting head 208 is used to limit the base plate 201 on the guide rail. The two connecting plates 202 firmly limit the base plate 201 on the guide rail through the limiting heads 208 thereon, thereby preventing the relay from sliding or falling off on the guide rail, thereby enhancing the stability and safety of the installation. The inclined surface 209 on the limiting head 208 is designed to facilitate guiding the base plate 201 to slide smoothly into the guide rail during installation, thereby simplifying the installation steps.

[0024] Reference Figure 4 、 Figure 5 and Figure 6 The mounting mechanism 2 also includes: two right-angle plates 203, which are respectively mounted on the two base plates 201 and are symmetrically arranged, and the support plate 206 is mounted on the right-angle plates 203; an elastic member 204 is mounted between the two right-angle plates 203, and is used to provide a restoring force for the two base plates 201 to return to their initial positions; two guide rods 205, which are respectively mounted on the two right-angle plates 203, and the two ends of the elastic member 204 are respectively connected to the two guide rods 205. The elastic member 204 provides a restoring force for the two base plates 201 to their initial positions and provides a traction force for the two base plates 201 after movement, so that the two base plates 201 can be tightly moved to the middle position after being pulled, and can be stably clamped on the guide rail, thereby improving the stability and accuracy of the mounting mechanism 2. The guide rod 205 serves as a guide and support for the elastic member 204, preventing the elastic member 204 from deflecting and twisting during the extension and retraction process, thereby ensuring its reliability in long-term use. The elastic member 204 adopts a stainless steel spring, and can also adopt an elastic rope.

[0025] Reference Figure 2 and Figure 3 The solid-state relay body 1 includes: a groove 101, which is opened at the bottom of the solid-state relay body 1, and the base plate 201 is arranged in the groove 101; a plurality of mounting grooves 102, which are opened on the inner wall of the groove 101, and the base plate 201 is connected to the mounting groove 102. The groove 101 is opened at the bottom of the solid-state relay body 1, providing space for the installation of the base plate 201; the mounting groove 102 ensures a firm connection between the base plate 201 and the body to prevent loosening or falling off.

[0026] Reference Figure 1 and Figure 2The protective shell 3 is installed on the solid-state relay body 1 and is used to provide protection for the solid-state relay body 1. It is installed on the solid-state relay body 1 to provide additional physical protection and prevent accidental electric shock.

[0027] During use, the two base plates 201 are installed in the mounting grooves 102 of the solid-state relay body 1. The two base plates 201 are set to have adjustable spacing to adapt to guide rails of different sizes. Two connecting plates 202 are symmetrically installed on the two base plates 201. A limit head 208 is installed on each connecting plate 202. A bevel 209 is formed on one side of the limit head 208 to ensure that the limit head 208 can correctly cooperate with the bends on both sides of the guide rail so that the base plate 201 can be limited to the guide rail in subsequent steps. The elastic member 204 provides the two base plates 201 with a restoring force to the initial position to ensure that they can automatically return to the preset position after adjusting the spacing. The solid-state relay body 1 and its mounting mechanism 2 are aligned with the guide rail, and the bevel 209 on the limit head 208 is used to prevent the base plate 201 from being moved. 09 is designed to guide the bottom plate 201 to slide smoothly into the guide rail. When the limit head 208 is stuck in the bends on both sides of the guide rail, the bottom plate 201 is firmly limited on the guide rail. At the same time, the two support plates 206 provide a force for the bottom plate 201 to move away from the guide rail, thereby enhancing the stability of the installation. During this process, the elastic member 204 is compressed, providing traction for the two bottom plates 201 after movement, so that the two bottom plates 201 can be tightly moved to the middle position and stably clamped on the guide rail. Check whether the relay body and its mounting mechanism 2 are firmly installed without looseness or falling off. Install a protective shell 3 on the solid-state relay body 1 to provide additional physical protection for the relay body to prevent it from being affected by external factors such as dust and moisture, and to prevent accidental electric shock.

[0028] In summary, compared with the prior art, the present invention has the following beneficial effects: by designing two base plates 201 with adjustable spacing, the solid-state relay can be flexibly adapted to DIN rails of different sizes and specifications, including non-standard sizes, thereby improving the versatility and market adaptability of the solid-state relay. By setting the support plate 206 on the right-angle plate 203, not only a stable support is provided for the base plate 201, but also vibration and impact can be absorbed to a certain extent, effectively protecting the solid-state relay from the influence of the external environment. Combined with the design of the limit head 208, the base plate 201 is firmly limited to the rail, preventing the relay from sliding or falling off on the rail, significantly improving the stability and safety of the installation. The comprehensive design of this solution not only solves the problems of adaptability and stability, but also improves the overall performance and reliability of the solid-state relay by optimizing the structural layout, which helps to extend the service life of the solid-state relay, reduce the failure rate caused by improper installation or environmental factors, and improve the overall operating efficiency and stability of the electrical equipment.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A unidirectional AC solid-state relay, characterized in that: include: Solid-state relay body (1); A mounting mechanism (2) mounted on the solid-state relay body (1) and used for mounting the solid-state relay body (1) on a guide rail; The mounting mechanism (2) comprises: Two base plates (201) are mounted on the solid-state relay body (1), and the two base plates (201) are configured to be close to or far away from each other at the same time, so as to adapt to guide rails of different sizes; Two support plates (206) are respectively connected to the two base plates (201); the support plates (206) are arranged to be supported between the base plate (201) and the guide rail, and are used to stabilize the position of the base plate (201) on the guide rail.

2. The unidirectional AC solid-state relay according to claim 1, characterized in that: The bottom plate (201) comprises: Two connecting plates (202) are mounted on the base plate (201) and are symmetrically arranged. The connecting plates (202) are used to limit the base plate (201) on the guide rail.

3. The unidirectional AC solid-state relay according to claim 1, characterized in that: The mounting mechanism (2) further comprises: Two right-angle plates (203) are respectively mounted on the two bottom plates (201) and are symmetrically arranged, and the support plate (206) is mounted on the right-angle plates (203); An elastic member (204) is installed between the two right-angle plates (203) and is used to provide a restoring force for the two bottom plates (201) to return to their initial positions; The two guide rods (205) are respectively mounted on the two right-angle plates (203), and the two ends of the elastic member (204) are respectively connected to the two guide rods (205).

4. The unidirectional AC solid-state relay according to claim 2, characterized in that: The connecting plate (202) comprises: A limiting head (208) is mounted on the connecting plate (202), and a slope (209) is formed on one side of the limiting head (208). The limiting head (208) is used to limit the bottom plate (201) on the guide rail.

5. The unidirectional AC solid-state relay according to claim 1, characterized in that: The bottom plate (201) further comprises: The ear plate (207) is mounted on the bottom plate (201).

6. The unidirectional AC solid-state relay according to claim 1, characterized in that: The solid-state relay body (1) comprises: A groove (101) is provided at the bottom of the solid-state relay body (1), and the bottom plate (201) is arranged in the groove (101); A plurality of mounting grooves (102) are provided on the inner wall of the groove (101), and the bottom plate (201) is connected to the mounting grooves (102).

7. The unidirectional AC solid-state relay according to claim 1, characterized in that: Also includes: A protective shell (3) is mounted on the solid-state relay body (1) and is used to provide protection for the solid-state relay body (1).

8. The unidirectional AC solid-state relay according to claim 1, characterized in that: The support plate (206) is Z-shaped, and the support plate (206) is elastic.

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