A new type of elastic structure device for relay contact

Abstract

The utility model discloses a novel relay contact point elastic structure device belongs to relay technical field, including the casing, the casing is installed with the contact piece, one side of contact piece is installed with the swing board, one side fixed connection of swing board has the mounting block, the elastic device of assembly in mounting block outside, the locking device of assembly in mounting block with casing is inside. In the utility model, first hook loses or obtains the pulling force according to the electromagnetic attraction effect, at this moment, the round plate on the slide bar and the sleeve baffle synchronous movement are driven, when being in the closed state, the baffle is located above the connecting shell, can limit the elastic force of reset spring, thereby avoiding the contact point closing and the force too violent, and when being in the open state, the round plate moves down to the inside of connecting shell, also can limit the elastic force of reset spring, avoid the contact point strong rebound time too long because of the elastic force release too fast, thereby reduce the contact point damage risk, improve the reliability and stability of relay work.

Description

Technical Field

[0001] This application relates to the field of relay technology, specifically to a novel relay contact elastic structure device. Background Technology

[0002] Existing relay contact structures typically rely on a single spring element to provide contact elasticity. However, improper elasticity control can easily lead to excessively long contact response time or excessive rebound, resulting in contact wear or malfunction. Furthermore, when the elastic component of a traditional relay is damaged or aged, multiple parts usually need to be disassembled for replacement, which is cumbersome, inefficient, and prone to affecting contact installation accuracy due to improper disassembly and assembly. Therefore, there is an urgent need for a relay contact elasticity structure device that is compact, has controllable elasticity, and is easy to replace, in order to improve service life and maintenance convenience. Summary of the Invention

[0003] Therefore, this application provides a novel relay contact elastic structure device to solve the problems of existing relay contact structures that usually rely on a single spring element to provide contact elasticity. Improper elasticity control can easily cause the contact response time to be too long or the rebound to be too strong, which in turn causes contact wear or malfunction. At the same time, after the elastic component of a traditional relay is damaged or aged, multiple parts usually need to be disassembled to complete the replacement, which is cumbersome and has low maintenance efficiency.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A novel relay contact elastic structure device includes a housing, a contact piece installed inside the housing, a swing plate installed on one side of the contact piece, a mounting block fixedly connected to one side of the swing plate, an elastic device assembled outside the mounting block, and a locking device assembled between the mounting block and the housing.

[0006] The elastic device includes a connecting shell, inside which is a circular plate. A sliding rod is fixedly connected to the circular plate, and a first hook and a second hook are fixedly connected to the upper part of the sliding rod and the lower part of the connecting shell, respectively.

[0007] Optionally, the elastic device further includes a baffle, which is sleeved outside the slide rod. A connecting sleeve is installed inside the connecting shell, and a return spring is fixedly connected inside the connecting sleeve, with one end of the return spring fixedly connected inside the circular plate.

[0008] Optionally, the diameter of the circular plate's cross-section is smaller than the inner diameter of the connecting shell, and the circular plate and the connecting shell form a sliding connection.

[0009] Optionally, a through hole is provided inside the connecting shell, and the slide rod and the through hole form a sliding connection.

[0010] Optionally, the locking device includes a telescopic rod, the telescopic end of which is fixedly connected to a pressing block, and the pressing block is positioned above the mounting block. A return spring is provided on the outer sleeve of the telescopic rod.

[0011] Optionally, both the mounting block and the housing are provided with sliding grooves, and the extrusion block is located within the sliding grooves.

[0012] Optionally, one end of the pull-back spring is fixedly connected to the slide groove, and the other end of the pull-back spring is fixedly connected to the lower surface of the extrusion block.

[0013] Compared with the prior art, this application has at least the following beneficial effects:

[0014] 1. In this utility model, by setting a cooperative structure between the first hook and the return spring, in the energized or de-energized state, the first hook loses or gains tension due to electromagnetic attraction. At this time, it drives the circular plate on the slide rod and the outer baffle to move synchronously. When in the closed state, the baffle is located above the connecting shell, which can limit the elastic force of the return spring, thereby avoiding excessive force when the contact is closed. When in the open state, the circular plate moves down into the connecting shell, which can also limit the elastic force of the return spring, avoiding excessively fast release of elastic force and strong contact rebound time, thereby reducing the risk of contact damage and improving the reliability and stability of the relay operation.

[0015] 2. In this utility model, by setting a sliding groove in the mounting block and the housing, and cooperating with the locking device formed by the telescopic rod, the squeezing block and the return spring, the quick disassembly and replacement of the elastic structure is realized. When the internal elastic device needs to be replaced, the operator only needs to press the squeezing block to make it enter the recess of the mounting block in the sliding groove, thereby releasing the restriction on the first hook, allowing it to be released and easily removed. After the new elastic structure is installed, the return spring automatically drives the squeezing block to return to its original position, effectively limiting the first hook and the second hook again, preventing the parts from loosening or falling off, and significantly improving the maintenance efficiency and operational safety of the relay device. Attached Figure Description

[0016] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0017] Figure 1 This is a three-dimensional structural diagram of a novel relay contact elastic structure device provided in Embodiment 1 of this application;

[0018] Figure 2 This is a three-dimensional cross-sectional view of the connecting shell of a novel relay contact elastic structure device provided in Embodiment 1 of this application;

[0019] Figure 3 This application provides a novel relay contact elastic structure device according to Embodiment 2. Figure 2 Enlarged structural diagram of part A in the middle;

[0020] Figure 4 This is a three-dimensional structural diagram of a locking device for a novel relay contact elastic structure provided in Embodiment 1 of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Housing; 2. Contact plate; 3. Swing plate; 4. Mounting block; 5. Elastic device; 501. Connecting shell; 502. Circular plate; 503. Slide rod; 504. First hook; 505. Second hook; 506. Baffle; 507. Connecting sleeve; 508. Return spring; 6. Locking device; 601. Telescopic rod; 602. Pressing block; 603. Pull-back spring. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Please see Figures 1-4 ;

[0025] First embodiment:

[0026] This utility model provides a technical solution: a novel relay contact elastic structure device, including a housing 1, a contact piece 2 installed inside the housing 1, a swing plate 3 installed on one side of the contact piece 2, a mounting block 4 fixedly connected to one side of the swing plate 3, an elastic device 5 assembled outside the mounting block 4, and a locking device 6 assembled between the mounting block 4 and the housing 1.

[0027] The elastic device 5 includes a connecting shell 501, and a circular plate 502 is provided inside the connecting shell 501. The cross-sectional diameter of the circular plate 502 is smaller than the inner diameter of the connecting shell 501. The two form a sliding fit, so that the circular plate 502 can move up and down with the slide rod 503 in the state of being energized or de-energized. Thus, without affecting the sealing performance of the connecting shell 501, the return spring 508 can be effectively compressed and released, improving the sensitivity and response speed of the elastic control.

[0028] A slide rod 503 is fixedly connected to the circular plate 502. A first hook 504 and a second hook 505 are fixedly connected to the slide rod 503 and the connecting shell 501, respectively.

[0029] Specifically, such as Figure 2-3As shown, the elastic device 5 also includes a baffle 506, which is sleeved on the outside of the slide rod 503. A connecting sleeve 507 is installed inside the connecting shell 501. A return spring 508 is fixedly connected inside the connecting sleeve 507. One end of the return spring 508 is fixedly connected inside the circular plate 502. The return spring 508 is fixedly connected to the circular plate 502, so that when the circular plate 502 is displaced by the slide rod 503, it can directly compress or release the return spring 508, realize the synchronous control of elastic energy storage and release, avoid lag or deviation caused by indirect force transmission, and improve the overall action coordination.

[0030] The diameter of the cross-section of the circular plate 502 is smaller than the inner diameter of the connecting shell 501, and the circular plate 502 and the connecting shell 501 are slidably connected. A through hole is provided through the connecting shell 501, and the slide rod 503 is slidably connected to the through hole. The slide rod 503 passes through the through hole in the connecting shell 501 and is slidably connected to the through hole, so that the slide rod 503 can stably drive the circular plate 502 and the baffle 506 to move back and forth along the axial direction, effectively preventing jamming or deviation during the sliding process, ensuring that the force direction of the return spring 508 is consistent, and helping to stabilize the elastic recovery action.

[0031] During operation, the first hook 504 and the return spring 508 are designed to work together. When the power is on or off, the first hook 504 loses or gains tension due to electromagnetic attraction. This causes the circular plate 502 on the slide rod 503 and the outer baffle 506 to move synchronously. When in the closed state, the baffle 506 is located above the connecting shell 501, which limits the spring force of the return spring 508, thus preventing excessive force when the contacts close. When in the open state, the circular plate 502 moves down into the connecting shell 501, which also limits the spring force of the return spring 508, preventing the contacts from rebounding too quickly due to excessively rapid release of spring force, thereby reducing the risk of contact damage and improving the reliability and stability of the relay operation.

[0032] Second embodiment:

[0033] Specifically, such as Figure 4 As shown, the locking device 6 includes a telescopic rod 601, with a pressing block 602 fixedly connected to the telescopic end of the telescopic rod 601. The pressing block 602 is positioned above the mounting block 4. A return spring 603 is sleeved on the telescopic rod 601. After the return spring 603 is fixedly connected to the lower surface of the pressing block 602, it can provide a continuous upward pushing force to the pressing block 602 in the released state, so that it always maintains the limiting effect on the first hook 504. This helps to prevent the elastic device 5 from accidentally coming off, and at the same time simplifies the manual intervention steps of the installation and reset action.

[0034] Both the mounting block 4 and the housing 1 have grooves, and the extrusion block 602 is located in the groove. One end of the return spring 603 is fixedly connected in the groove, and the other end of the return spring 603 is fixedly connected to the lower surface of the extrusion block 602.

[0035] During operation, the locking device 6, formed by the sliding grooves in the mounting block 4 and the housing 1, along with the telescopic rod 601, the pressing block 602, and the return spring 603, enables quick disassembly and replacement of the elastic structure. When the internal elastic device 5 needs to be replaced, the operator only needs to press the pressing block 602 to allow it to enter the recess of the mounting block 4 in the sliding groove, thereby releasing the restriction on the first hook 504 and allowing it to be released and easily removed. After the new elastic structure is installed, the return spring 603 automatically drives the pressing block 602 back to its original position, effectively limiting the first hook 504 and the second hook 505 again, preventing the parts from loosening or falling off, and significantly improving the maintenance efficiency and operational safety of the relay device.

[0036] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A novel relay contact elastic structure device, comprising a housing (1), characterized in that, The housing (1) is equipped with a contact piece (2), a swing plate (3) is installed on one side of the contact piece (2), a mounting block (4) is fixedly connected to one side of the swing plate (3), an elastic device (5) is assembled outside the mounting block (4), and a locking device (6) is assembled between the mounting block (4) and the housing (1). The elastic device (5) includes a connecting shell (501), a circular plate (502) is provided inside the connecting shell (501), a sliding rod (503) is fixedly connected to the circular plate (502), and a first hook (504) and a second hook (505) are fixedly connected to the sliding rod (503) and the connecting shell (501) respectively.

2. The novel relay contact elastic structure device according to claim 1, characterized in that, The elastic device (5) further includes a baffle (506), which is sleeved on the outside of the slide rod (503). A connecting sleeve (507) is installed inside the connecting shell (501). A return spring (508) is fixedly connected inside the connecting sleeve (507), and one end of the return spring (508) is fixedly connected inside the circular plate (502).

3. The novel relay contact elastic structure device according to claim 1, characterized in that, The diameter of the cross-section of the circular plate (502) is smaller than the inner diameter of the connecting shell (501), and the circular plate (502) and the connecting shell (501) form a sliding connection.

4. The novel relay contact elastic structure device according to claim 1, characterized in that, The connecting shell (501) has a through hole, and the slide rod (503) is slidably connected to the through hole.

5. The novel relay contact elastic structure device according to claim 1, characterized in that, The locking device (6) includes a telescopic rod (601), the telescopic end of which is fixedly connected to a pressing block (602), and the pressing block (602) is located above the mounting block (4). The telescopic rod (601) is covered with a pull-back spring (603).

6. A novel relay contact elastic structure device according to claim 5, characterized in that, Both the mounting block (4) and the housing (1) are provided with sliding grooves, and the pressing block (602) is located in the sliding groove.

7. A novel relay contact elastic structure device according to claim 6, characterized in that, One end of the pull-back spring (603) is fixedly connected to the groove, and the other end of the pull-back spring (603) is fixedly connected to the lower surface of the extrusion block (602).

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