Shock-absorbing low-wear silver contact

Abstract

The utility model discloses a shock-absorbing low-wear silver contact, which relates to the technical field of contacts, and comprises a contact, the contact is arranged in a switch body, a pressing plate is rotatably arranged on the switch body, a bottom frame is fixed in the switch body, a warping plate is rotatably connected on the bottom frame, the contact is fixed at the end part of the contact, and the pressing plate is rotatably connected with the warping plate. A trigger mechanism is fixedly arranged at the lower end of the pressing plate, the lower end of the trigger mechanism abuts against the upper end face of the warping plate, a buffer mechanism is arranged on the inner side wall of the switch body, and the buffer mechanism and the upper end of the contact are correspondingly arranged in a matched mode. The utility model discloses a shock-absorbing low-wear silver contact. Through the arrangement of the trigger mechanism and the buffer mechanism, the contact moves up and down along with the seesaw, rigid impact of the contact is reduced through the buffer effect of the second spring when the contact makes contact with the connector, then abrasion of the contact can be reduced, and a more stable supporting effect is achieved through left-right limiting of the feeler lever.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to a shock-absorbing and low-wear silver contactor. Background Technique

[0002] The contactor is one of the key components of a switching electrical appliance. The main performance and service life of the switching electrical appliance largely depend on the quality of the contactor material. At present, most contactor materials are silver. Silver contactors have good antioxidant effects and long service lives.

[0003] However, at present, when the contactor moves up and down with the pressing of the switch and impacts and connects with the joint, wear will occur, and the joint will be displaced under long-term impacts, resulting in the failure of the switch, reducing the service life, and affecting the user experience. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a shock-absorbing and low-wear silver contactor, which solves the problems raised in the above background technique.

[0005] To achieve the above object, the utility model is realized through the following technical solutions: a shock-absorbing and low-wear silver contactor, including a contactor, the contactor is arranged inside the switch body, a pressing plate is rotatably arranged on the switch body, a bottom frame is fixed inside the switch body, a rocker is rotatably connected to the bottom frame, the contactor is fixed at the end of the contactor, a triggering mechanism is fixedly arranged at the lower end of the pressing plate, the lower end of the triggering mechanism abuts against the upper end surface of the rocker, a buffer mechanism is arranged on the inner side wall of the switch body, and the buffer mechanism is arranged in a matching manner corresponding to the upper end of the contactor.

[0006] Further, the buffer mechanism includes: a lower plate, the lower plate is fixed on the inner wall of the switch body, and the lower plate is arranged above the highest end of the contactor; an upper plate, the upper plate is fixed on the switch body above the lower plate, a guide rod is inserted through the upper plate, a second spring is fixedly connected to the lower end of the upper plate, and the lower end of the second spring is fixedly connected to a joint, and the joint is movably arranged inside the lower plate.

[0007] Further, the triggering mechanism includes: a swing rod, a placement groove is opened at the lower end of the swing rod, a first spring is fixedly connected inside the placement groove, the lower end of the first spring is fixedly connected to a contact rod, the contact rod is slidably arranged inside the placement groove, and the lower end of the contact rod abuts against and slides on the upper end surface of the rocker.

[0008] Further, a slot is opened on the upper end surface of the rocker on the circumference of the contactor, and the slot is arranged in a matching and pluggable manner with the joint.

[0009] Further, a positioning block is fixed within the moving range of the contact rod on the rocker. A groove is formed at the upper end of the positioning block, and the convex end of the contact rod is arranged within the range of the groove.

[0010] Further, a support plate is fixedly connected to the lower end of the end of the rocker away from the contact head, and the lower end of the support plate is fixedly connected to the inner wall of the switch body.

[0011] Compared with the above background art, the shock-absorbing and low-wear silver contact provided by the present application includes a silver contact with very mature technology today, and a trigger mechanism and a buffer mechanism as the core components. Its principle relies on the second spring to reduce the impact force between the joint and the contact head, and the rebounding force of the second spring can make the connection between the contact head and the joint closer.

[0012] The utility model provides a shock-absorbing and low-wear silver contact. Compared with the prior art, it has the following beneficial effects:

[0013] For the shock-absorbing and low-wear silver contact, by arranging a trigger mechanism and a buffer mechanism, the contact head moves up and down with the rocker. Through the buffering effect of the second spring when the contact head contacts the joint, the hard impact of the contact head is reduced, thereby reducing the wear of the contact head, and a more stable supporting effect is achieved through the left and right limits of the contact rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the utility model;

[0015] Figure 2 is a schematic structural diagram of the pressing plate and the rocker of the utility model;

[0016] Figure 3 is a schematic plan view of the cross-section of the trigger mechanism of the utility model;

[0017] Figure 4 is Figure 2 an enlarged structural diagram at A in

[0018] Figure 5 is Figure 3 an enlarged structural diagram at B in

[0019] In the figure: 1, pressing plate; 2, swing rod; 3, chassis; 4, rocker; 5, placement groove; 6, first spring; 7, contact rod; 8, support plate; 9, lower plate; 10, upper plate; 11, guide rod; 12, second spring; 13, joint; 14, slot; 15, contact head; 16, positioning block; 17, groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5 , the present invention provides a technical solution: a shock-absorbing and low-wear silver contact, including a contact 15, the contact 15 is arranged inside the switch body, a pressing plate 1 is rotatably arranged on the switch body, a bottom frame 3 is fixed inside the switch body, a rocker 4 is rotatably connected to the bottom frame 3, the contact 15 is fixed at the end of the contact 15, a trigger mechanism is fixedly arranged at the lower end of the pressing plate 1, the lower end of the trigger mechanism abuts against the upper end surface of the rocker 4, a buffer mechanism is arranged on the inner side wall of the switch body, and the buffer mechanism is arranged in a matching manner with the upper end of the contact 15; by pressing the pressing plate 1 at the upper end of the switch body to touch the trigger mechanism, the trigger mechanism is driven to swing by the pressing of the pressing plate 1, and then the rocker 4 follows the trigger mechanism to swing left and right with the upper end of the bottom frame 3 as the fulcrum. When the long end of the rocker 4 is upward, the trigger mechanism is located at the top of the short end of the rocker 4. When the long end of the rocker 4 is downward, the trigger mechanism is located at the balance end of the rocker 4. When the rocker 4 tilts upward, it drives the contact 15 to contact the buffer mechanism. Through the buffering action of the buffer mechanism, the impact of the contact 15 being tilted can be reduced, the wear of the contact 15 can be reduced, and the connection between the buffer mechanism and the contact 15 can be made closer.

[0022] As Figure 3 and Figure 5 shown, the buffer mechanism includes: a lower plate 9, the lower plate 9 is fixed on the inner wall of the switch body, and the lower plate 9 is arranged above the highest end of the contact 15; an upper plate 10, the upper plate 10 is fixed on the switch body above the lower plate 9, a guide rod 11 is penetrated through the upper plate 10, a second spring 12 is fixedly connected to the lower end of the upper plate 10, and the lower end of the second spring 12 is fixedly connected to a joint 13, and the joint 13 is movably arranged inside the lower plate 9; a guide rod 11 is penetrated through the upper plate 10, the lower end of the guide rod 11 is fixedly connected to the joint 13, and with the second spring 12 as the buffering function, when the contact 15 contacts the joint 13 upward, power can be turned on. At this time, the contact 15 first presses the joint 13, and the elastic force of the second spring 12 can play a buffering role, and then the contact 15 can be pressed down by the reverse pushing action of the second spring 12. At this time, the position of the contact 15 is fixed by the trigger mechanism. Therefore, the contact 15 can be connected to the joint 13 more closely and the wear of the contact 15 will not be increased.

[0023] As Figure 3As shown, the trigger mechanism includes: a swing rod 2, a placement groove 5 is opened at the lower end of the swing rod 2, a first spring 6 is fixedly connected in the placement groove 5, a touch rod 7 is fixedly connected at the lower end of the first spring 6, the touch rod 7 is slidably arranged in the placement groove 5, and the lower end of the touch rod 7 is slidably arranged against the upper end surface of the rocker 4; the swing rod 2 swings left and right following the up and down rotation of the pressing plate 1, at this time, the swing rod 2 drives the first spring 6 in the placement groove 5 and the touch rod 7 fixed at the lower end of the first spring 6 to swing left and right, and then the rocker 4 is tilted up and down by the touch rod 7, thereby achieving the function of a switch.

[0024] like Figure 5 As shown, a slot 14 is provided on the upper end surface of the rocker 4 located on the side around the contact 15, and the slot 14 is matched with the connector 13 for plugging. When the contact 15 contacts the rocker 4, the slot 14 can correspond at the moment of pressing, so that the contact area between the slot 14 and the connector 13 can be increased, thereby achieving a better stable connection effect.

[0025] like Figure 4 As shown, a positioning block 16 is fixed within the movable range of the touch rod 7 on the rocker 4, and a groove 17 is provided at the upper end of the positioning block 16. The convex end of the touch rod 7 is arranged within the range of the groove 17; the touch rod 7 can be guided by the groove 17 when moving left and right, and the raised positioning block 16 can achieve a fixing effect when the touch rod 7 moves to both ends, thereby preventing the touch rod 7 from sliding, and the convex end of the touch rod 7 is arranged in the groove 17, so that the wear on the end of the touch rod 7 can be reduced when sliding left and right.

[0026] like Figure 1 As shown, the lower end of the end of the rocker 4 away from the contact 15 is fixedly connected to a support plate 8, and the lower end of the support plate 8 is fixedly connected to the inner wall of the switch body; the support plate 8 is fixed to the lower end of the short end of the rocker 4, so that when the rocker 4 swings up and down, a reaction force can be provided by the support plate 8, which can make the whole more stable and firm when mutually constrained to avoid loosening.

[0027] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A shock-absorbing and low-wear silver contact, comprising a contact (15), wherein the contact (15) is arranged in a switch body, a push plate (1) is rotatably arranged on the switch body, a base frame (3) is fixed in the switch body, a seesaw (4) is rotatably connected to the base frame (3), and the contact (15) is fixed to the end of the contact (15), characterized in that: A trigger mechanism is fixedly arranged at the lower end of the push plate (1), the lower end of the trigger mechanism is arranged to abut against the upper end surface of the rocker (4), and a buffer mechanism is arranged on the inner side wall of the switch body, and the buffer mechanism is arranged to match and correspond to the upper end of the contact (15).

2. A shock-absorbing and low-wear silver contact according to claim 1, characterized in that: The buffer mechanism comprises: A lower plate (9), the lower plate (9) being fixed to the inner wall of the switch body, the lower plate (9) being located above the highest end of the contact (15); An upper plate (10) is fixed to a switch body located above the lower plate (9), a guide rod (11) is inserted into the upper plate (10), a second spring (12) is fixedly connected to the lower end of the upper plate (10), a joint (13) is fixedly connected to the lower end of the second spring (12), and the joint (13) is movably arranged in the lower plate (9).

3. A shock-absorbing and low-wear silver contact according to claim 2, characterized in that: The trigger mechanism comprises: A swing rod (2), wherein a placement groove (5) is provided at the lower end of the swing rod (2), a first spring (6) is fixedly connected in the placement groove (5), a touch rod (7) is fixedly connected at the lower end of the first spring (6), the touch rod (7) is slidably arranged in the placement groove (5), and the lower end of the touch rod (7) is slidably arranged against the upper end surface of the rocker (4).

4. A shock-absorbing and low-wear silver contact according to claim 2, characterized in that: A slot (14) is provided on the upper end surface of the seesaw (4) located on the peripheral side of the contact (15), and the slot (14) is matched with the connector (13) for plugging.

5. The shock-absorbing and low-wear silver contact according to claim 3, characterized in that: A positioning block (16) is fixed within the range of movement of the touch rod (7) on the seesaw (4), a groove (17) is provided at the upper end of the positioning block (16), and the convex end of the touch rod (7) is arranged within the range of the groove (17).

6. A shock-absorbing and low-wear silver contact according to claim 2, characterized in that: The lower end of the end of the rocker (4) away from the contact (15) is fixedly connected to a support plate (8), and the lower end of the support plate (8) is fixedly connected to the inner wall of the switch body.

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