Flip cover connecting structure of relay and solid-state relay

Abstract

The utility model discloses a flip cover connecting structure of a relay and a solid-state relay, the flip cover connecting structure comprises a housing and at least one flip cover, and the flip cover is rotatably connected to the housing and can be turned to open or close; an opening limiting structure is arranged between the turning cover and the shell in a matched mode, and the opening limiting structure enables the turning cover to be kept in an opening state after the turning cover is turned over and opened. According to the utility model, when the relay is installed on a vertical surface, the flip cover does not automatically fall back to a closed state due to gravity, thereby facilitating wiring operation of workers.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, and in particular to a flip-top connection structure for a relay and a solid-state relay. Background Technology

[0002] Some existing relays, such as solid-state relays, have a flip cover on their housing to facilitate electrical wiring and achieve waterproofing and dustproofing. However, because the flip cover design of existing relays only has a locking mechanism when the flip cover is closed, and there is no structure to hold the flip cover open, when the relay is mounted on a vertical surface, the flip cover can easily fall back to the closed state due to gravity, thus affecting the convenience of wiring. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a flip-top connection structure for a relay and a solid-state relay. Through structural improvements, the flip-top will not automatically fall back to the closed state due to gravity when the product is installed on a vertical surface.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a flip-top connection structure for a relay, including a housing and at least one flip-top, the flip-top being rotatably connected to the housing and being able to be flipped open or closed; an opening limiting structure is provided between the flip-top and the housing, the opening limiting structure causing the flip-top to remain in the open state after the flip-top is flipped open.

[0005] Furthermore, the opening limiting structure includes an elastic arm provided on the flip cover and a limiting part provided on the housing. The tail end of the elastic arm is provided with a locking protrusion. When the flip cover is opened to the position, the locking protrusion is engaged with the limiting part to restrict the flip cover from automatically rotating in the closing direction from the open position.

[0006] Furthermore, the limiting part is a limiting protrusion, and when the flip cover is opened, the locking protrusion passes over the limiting protrusion and is locked on one side of the limiting protrusion; or, the limiting part is a limiting recess, and when the flip cover is opened to the position, the locking protrusion is locked into the limiting recess; the locking protrusion has a smooth surface.

[0007] Furthermore, one end of each of the opposite side walls of the flip cover is rotatably connected to the top of the housing, and at least one of the opposite side walls of the flip cover is provided with the elastic arm; the part of the housing for rotatably connecting with the flip cover is provided with a guide groove corresponding to the latching protrusion of the elastic arm, the latching protrusion slides along the guide groove during the rotation of the flip cover, and the limiting part is provided in the guide groove and located at the end of the path along which the latching protrusion slides in the opening direction of the flip cover.

[0008] Furthermore, each of the two opposite side walls of the flip cover is provided with a pivot, the two pivots are arranged opposite each other and are respectively inserted into the corresponding shaft holes of the housing; the guide groove leads to the shaft hole, and the locking protrusion slides around the axis of the shaft hole in the guide groove.

[0009] Furthermore, the elastic arm is formed by opening a U-shaped groove in the side wall where the elastic arm is located. The elastic arm extends inward along the radial direction of the rotating shaft, and the locking protrusion is located on one side of the tail end of the elastic arm in the direction of extension of the rotating shaft.

[0010] Furthermore, the elastic arms are respectively provided on the opposite side walls of the flip cover.

[0011] Furthermore, the limiting protrusion has a rib structure, and the locking protrusion is bud-shaped and hemispherical.

[0012] Furthermore, the flip cover and the housing are fitted with a closing limiting structure to maintain the flip cover in a closed state after the flip cover is flipped and closed; the closing limiting structure includes an inner latching clip provided on the inner side of the closed end of the flip cover and an outer latching clip provided on the outer side of the housing corresponding to the inner latching clip, and the inner latching clip and the outer latching clip engage when the flip cover is closed; there are two flip covers, the opening directions of the two flip covers are opposite, and the closed ends of the two flip covers face outwards respectively when the two flip covers are closed.

[0013] This utility model also provides a solid-state relay, including the flip-cover connection structure of the relay as described above.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Because the flip cover and the housing are fitted with an opening limit structure, the opening limit structure causes the flip cover to remain in the open state after the flip cover is flipped open, so that the flip cover will not automatically fall back to the closed state due to gravity when the relay is installed on the vertical surface, thus facilitating the wiring operation of the staff.

[0016] 2. The opening limiting structure includes an elastic arm on the flip cover and a limiting part on the housing. This not only enables the opening limiting structure to automatically limit the flip cover when it is opened to the correct position, without affecting the normal closing of the flip cover, but also has the advantages of simple structure, no additional parts, and no additional assembly process.

[0017] 3. The part of the housing used for rotating with the flip cover is provided with a guide groove corresponding to the latching protrusion of the elastic arm. The latching protrusion slides along the guide groove during the rotation of the flip cover, so that the flip cover flips more smoothly.

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the flip-top connection structure of the relay and the solid-state relay of the present invention are not limited to the embodiments. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the flip cover of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the shell of this utility model;

[0021] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle;

[0022] Figure 4 This is a schematic diagram of the flip-top connection structure of this utility model in the flip-top closed state;

[0023] Figure 5 yes Figure 4 Enlarged schematic diagram of part B;

[0024] Figure 6 This is a schematic diagram of the flip-cover connection structure of this utility model during the flip-cover opening process. Figure 1 ;

[0025] Figure 7 yes Figure 6 An enlarged schematic diagram of section C;

[0026] Figure 8 This is a schematic diagram of the flip-cover connection structure of this utility model during the flip-cover opening process. Figure 2 ;

[0027] Figure 9 yes Figure 8 AA section view;

[0028] Figure 10 This is an enlarged schematic diagram of part D in section 9;

[0029] Figure 11 This is a schematic diagram of the flip-cover connection structure of this utility model in the fully open flip-cover state;

[0030] Figure 12 yes Figure 11 An enlarged schematic diagram of section E in the middle;

[0031] Figure 13 This is a schematic diagram of the solid-state relay of this utility model in the flip-cover closed state;

[0032] Figure 14 This is a top view of the solid-state relay of this utility model in the flip-top closed state;

[0033] Figure 15 This is a schematic diagram of the fixed platform relay of this utility model in the flip-top open state;

[0034] In the diagram, 1. Flip cover, 11. Elastic arm, 111. Snap protrusion, 12. Rotating shaft, 13. U-shaped groove, 14. Inner snap bud, 2. Housing, 21. Limiting protrusion, 22. Shaft hole, 23. Guide groove, 24. Outer snap bud, 3. Lower shell. Detailed Implementation

[0035] Please see Figures 1-12 As shown, the present invention discloses a flip-top connection structure for a relay, comprising a housing 2 and at least one flip-top 1. The flip-top 1 is rotatably connected to the housing 2 and can be flipped open or closed. An opening limiting structure is provided between the flip-top 1 and the housing 2, which causes the flip-top 1 to remain in the open state after it is flipped open.

[0036] In this embodiment, the opening limiting structure includes an elastic arm 11 on the flip cover 1 and a limiting part on the housing 2. The tail end of the elastic arm 11 has a locking protrusion 111. When the flip cover 1 is fully opened, the locking protrusion 111 engages with the limiting part to prevent the flip cover 1 from automatically rotating in the closing direction from the open position. Specifically, the limiting part is a limiting protrusion 21. When the flip cover 1 is opened, the locking protrusion 111 passes over the limiting protrusion 21 and engages with one side of the limiting protrusion 21. In other embodiments, the limiting part is a limiting recess. When the flip cover 1 is fully opened, the locking protrusion 111 engages with the limiting recess. The locking protrusion 111 has a smooth surface. In other embodiments, the opening limiting structure includes a torsion spring, which is sleeved on the rotating shaft of the flip cover 1, and the two legs of the torsion spring respectively abut against the flip cover 1 and the housing 2.

[0037] In this embodiment, one end of each of the opposite side walls of the flip cover 1 is rotatably connected to the top of the housing 2. Specifically, each of the opposite side walls of the flip cover 1 is provided with a rotating shaft 12, the two rotating shafts 12 are arranged opposite to each other, and are respectively inserted into the corresponding shaft holes 22 provided in the housing 2. Each of the opposite side walls of the flip cover 1 is provided with an elastic arm 11, but it is not limited to this. In other embodiments, only one of the opposite side walls of the flip cover 1 is provided with the elastic arm 11. Specifically, the opposite side walls of the flip cover 1 form the elastic arm 11 by opening a U-shaped groove 13, and the elastic arm 11 extends inward along the radial direction of the rotating shaft 12. The locking protrusion 111 is located on one side of the tail end of the elastic arm 11 in the extension direction of the rotating shaft 12. The housing 2, corresponding to the retaining protrusion 111 of the elastic arm 11, has a guide groove 23 at the part for rotatable connection with the flip cover 1. The retaining protrusion 111 slides along the guide groove 23 during the rotation of the flip cover 1. A limiting part (i.e., a limiting protrusion 21) is provided in the guide groove 23 and is located at the end of the path along which the retaining protrusion 111 slides in the opening direction of the flip cover 1. The guide groove 23 leads to the shaft hole 22 located at the same part, and the retaining protrusion 111 slides around the axis of the shaft hole 22 in the guide groove 23.

[0038] In this embodiment, the aforementioned limiting protrusion 21 has a rib structure, but is not limited to this. The locking protrusion 111 has a smooth surface so that it can smoothly slide away from the limiting protrusion 21 when it is necessary to release the opening limit of the flip cover 1. Specifically, the locking protrusion 111 is shaped like a bud and is hemispherical, but is not limited to this.

[0039] In this embodiment, the flip cover 1 and the housing 2 are fitted with a closing limiting structure to maintain the flip cover 1 in a closed state after it is flipped and closed. Specifically, the closing limiting structure includes an inner retaining clip 14 provided on the inner side of the closed end of the flip cover 1 and an outer retaining clip 24 provided on the outer side of the housing 2 corresponding to the inner retaining clip 14. When the flip cover 1 is closed, the inner retaining clip 14 and the outer retaining clip 24 engage with each other.

[0040] In this embodiment, there are two flip covers 1, the two flip covers 1 open in opposite directions, and when the two flip covers 1 are closed, the closed ends of the two flip covers 1 face outwards respectively.

[0041] This utility model discloses a flip-top connection structure for a relay, wherein the closed state of the flip-top 1 is as follows: Figure 4 , Figure 5 As shown, at this time, the elastic arm 11 is approximately horizontal, and the locking protrusion 111 at the tail end of the elastic arm 11 is located in the guide groove 23 at the end away from the limiting protrusion 21. When the flip cover 1 is opened, as the flip cover 1 gradually flips upward, the locking protrusion 111 at the tail end of the elastic arm 11 gradually slides along the guide groove 23 towards the limiting protrusion 21, as shown. Figure 6 , Figure 7As shown. When the latching protrusion 111 slides to the position where it contacts the limiting protrusion 21, as the flip cover 1 continues to flip upward, the latching protrusion 111 is gradually pushed up by the limiting protrusion 21, causing the elastic arm 11 to undergo elastic deformation, as shown. Figure 8 , Figure 9 As shown, thereafter, the locking protrusion 111 passes over the limiting protrusion 21, the elastic arm 11 returns to its original position, and the locking protrusion 111 is engaged with one side of the limiting protrusion 21, as shown. Figure 11 , Figure 12 As shown. At this moment, the flip cover 1 is just opened to the correct position. Therefore, with the cooperation of the locking protrusion 111 and the limiting protrusion 21, the flip cover 1 will not automatically fall back to the closed state due to gravity when the relay is installed on the vertical surface.

[0042] When it is necessary to close the flip cover 1, push the flip cover 1 slightly in the closing direction, so that the locking protrusion 111 is pushed up by the limiting protrusion 21 and the elastic arm 11 is compressed. Then the locking protrusion 111 passes over the limiting protrusion 21, the elastic arm 11 returns to its original position, and as the flip cover 1 rotates in the closing direction, the locking protrusion 111 slides along the guide groove 23 until the flip cover 1 is closed in place.

[0043] Please see Figures 13-15 As shown, a solid-state relay of this utility model includes the flip-top connection structure of the relay as described above. The housing 2 is specifically the upper housing of the solid-state relay and is fixedly connected to the lower housing 3 of the solid-state relay.

[0044] This utility model discloses a solid-state relay. When installed on a vertical surface, after the flip cover 1 is opened, the flip cover 1 will not automatically fall back to the closed state due to gravity, thanks to the cooperation between the locking protrusion 111 and the limiting protrusion 21. Figure 15 As shown, this facilitates wiring for operators.

[0045] This utility model discloses a flip-top connection structure for a relay and a solid-state relay. The parts not described herein are the same as or can be implemented using existing technologies.

[0046] The above embodiments are only used to further illustrate the flip-top connection structure of a relay and a solid-state relay of the present invention. However, the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A flip cover connecting structure of a relay, comprising a housing and at least one flip cover, the flip cover being pivotally connected to the housing and being flip-openable or flip-closable; characterized in that: The opening limiting structure is arranged between the flip cover and the shell, and is used to keep the flip cover in the opening state after the flip cover is opened.

2. The flip cover connecting structure of a relay according to claim 1, characterized by: The opening limiting structure comprises the elastic arm arranged on the flip cover and the limiting part arranged on the shell.

3. The flip cover connecting structure of a relay according to claim 2, characterized by: The limiting part is a limiting protrusion, and the clamping protrusion passes through the limiting protrusion and is clamped on one side of the limiting protrusion when the flip cover is opened.

4. The flip cover connecting structure of a relay according to claim 2, characterized by: The limiting part is a limiting recess, and the clamping protrusion is clamped in the limiting recess when the flip cover is opened.

5. The flip cover connecting structure of a relay according to claim 4, characterized by: The limiting part is a limiting recess, and the clamping protrusion is clamped in the limiting recess when the flip cover is opened.

6. The flip cover connecting structure of a relay according to claim 5, characterized by: The limiting part is a limiting recess, and the clamping protrusion is clamped in the limiting recess when the flip cover is opened.

7. The flip cover connecting structure of a relay according to any one of claims 4 to 6, characterized in that: The limiting part is a limiting recess, and the clamping protrusion is clamped in the limiting recess when the flip cover is opened.

8. The flip cover connecting structure of a relay according to claim 3, characterized by: The limiting part is a limiting recess, and the clamping protrusion is clamped in the limiting recess when the flip cover is opened.

9. The flip cover connecting structure of a relay according to claim 1, characterized by: The limiting part is a limiting recess, and the clamping protrusion is clamped in the limiting recess when the flip cover is opened.

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