CN202042427U

CN202042427U - Relay

Info

Publication number: CN202042427U
Application number: CN2011200733697U
Authority: CN
Inventors: 石国伟; 姜辉
Original assignee: Boda Electronics (shenzhen) Co Ltd
Current assignee: Boda Electronics (shenzhen) Co Ltd
Priority date: 2011-03-18
Filing date: 2011-03-18
Publication date: 2011-11-16
Anticipated expiration: 2021-03-18

Abstract

The utility model provides a relay. In the relay, a motor is in transmission connection with a rotary shaft through a gear; a final-stage gear is provided with a pulling block; the pulling block is connected with one end of an elastic sheet; the other end of the elastic sheet is connected onto a bow group; one end of a limiting component is fixed on the wall of a bottom shell, and the other end of the limiting component is pressed on the bow group; the bow group is further provided with a movable contact; one end of a static contact sheet which corresponds to the movable contact is provided with a static contact; one end of a movable contact sheet is connected onto the bow group; and a pin and a connection terminal are arranged on a control circuit board. The relay provided by the utility model has high contact pressure, reliable product contact, low contact temperature rise, stable performance, a simple structure, high shock and vibration resistance, large contact switching power.

Description

A kind of relay

Technical field

The utility model relates to electrical equipment technical field, particularly a kind of relay.

Background technology

Latching relay is a kind of relay with the low voltage control high pressure.The contact force of the latching relay that prior art provides is little, product contact is unreliable, contact temperature rise, unstable properties, and anti shock and vibration ability, contact power switched are little.

The utility model content

The utility model provides that a kind of contact force is big, contact is reliable, and the contact temperature rise is low, the relay of stable performance.

To achieve these goals, the utility model provides following technical scheme:

A kind of relay, it comprises: drain pan 115, described drain pan 115 are provided with and are used for drive actions motor 114, control circuit board 113, shell fragment 126, limiting component 109, arculae group, gear train, rotating shaft, movable contact spring 101 and static contact 104, wherein:

Described motor 114 is in transmission connection by gear train and rotating shaft, the final stage gear of described gear train is provided with pulling piece 127, described pulling piece 127 connects an end of shell fragment 126, the other end of described shell fragment 126 is connected on the arculae group, one end of described limiting component 109 is fixed on the wall of drain pan 115, the other end of described limiting component 109 is pressed on the described arculae group, also be provided with moving contact 102 on the described arculae group, one end of described static contact 104 corresponding moving contacts 102 is provided with fixed contact 103, one end of movable contact spring 101 is connected on the described arculae group, and contact pin and binding post 112 are arranged on the described control circuit board 113.

Preferably, described arculae group comprises and superposes successively from big to small and be arranged on first arculae 116, second arculae 117, the 3rd arculae 118 on the described drain pan 115 and comprise the shell fragment 126 that is arranged on first arculae 116.

Preferably, described limiting component 109 is limit spring or positive stop spring plate.

Preferably, the rotation of described motor 114 holds 110 meshing first gear 121 to be arranged, described first gear, 121 meshing second gears 122, described second gear, 122 meshing the 3rd gears 123, described first gear (121) and the 3rd gear (123) all are installed in second rotating shaft (125), and described second gear (122) is installed in first rotating shaft (124).

By implementing above technical scheme, have following technique effect: the relay contact pressure that the utility model provides is big, reliable, low, the stable performance of contact temperature rise of product contact, and simple in structure, the anti shock and vibration ability strong, the contact power switched is big.

Description of drawings

The structural representation of first kind of relay that Fig. 1 provides for the utility model embodiment;

Fig. 2 is the A-A cutaway view of Fig. 1;

The structural representation of second kind of relay that Fig. 3 provides for the utility model embodiment;

Fig. 4 is the A-A sectional view of Fig. 3.

Embodiment

In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing 1.

The utility model embodiment provides a kind of relay, as depicted in figs. 1 and 2, this relay comprises: a kind of relay, it comprises: drain pan 115, described drain pan 115 is provided with and is used for drive actions motor 114, control circuit board 113, shell fragment 126, positive stop spring plate 109, arculae group, gear train, rotating shaft movable contact spring 101 and static contact 104, wherein:

Described motor 114 is in transmission connection by gear train and rotating shaft, the final stage gear of described gear train is provided with pulling piece 127, described pulling piece 127 connects an end of shell fragment 126, the other end of described shell fragment 126 is connected on the arculae group, one end of described positive stop spring plate 109 is fixed on the wall of drain pan 115, the other end of described positive stop spring plate 109 is pressed on the described arculae group, also be provided with moving contact 102 on the described arculae group, one end of described static contact 104 corresponding moving contacts 102 is provided with fixed contact 103, one end of movable contact spring 101 is connected on the described arculae group, and contact pin and binding post 112 are arranged on the described control circuit board 113.

Preferably, described arculae group comprises and superposes successively from big to small and be arranged on first arculae 116, second arculae 117, the 3rd arculae 118 on the described drain pan 115 and comprise the shell fragment 109 that is arranged on first arculae 116.The other end of described positive stop spring plate 109 is pressed on first arculae 116 of described arculae group.

One end of described static contact 104 corresponding moving contacts 102 is provided with fixed contact 103, and is concrete, and in the present embodiment, described fixed contact 103 is riveted on the described static contact 104, and an end of movable contact spring 101 is connected on the described arculae group.The other end of described movable contact spring 101 is positioned at described relay outside.

In the present embodiment, more specifically, described arculae group comprises first arculae 116, second arculae 117, the 3rd arculae 118 superposes from big to small successively and be arranged on the described drain pan 115.

In the present embodiment, more specifically, the rotation end of described motor 114 is provided with first gear 121, described first gear, 121 meshing second gears 122, described second gear, 122 meshing the 3rd gears 123, described first gear (121) and the 3rd gear (123) all are installed in second rotating shaft (125), and described second gear (122) is installed in first rotating shaft (124).

Second kind of relay that Fig. 3 and Fig. 4 provide for the utility model embodiment, what this second kind of relay was different with first kind of relay is, change positive stop spring plate into limit spring 129, the bottom of this limit spring 129 is fixed on first arculae 116 of described arculae group, the top of described limit spring 129 withstands on the shell wall of drain pan 115, perhaps is connected on the shell wall of described drain pan 115.

Operation principle:

When the contact is in off-state, motor adds the positive pulse electric current, motor 114 is just changeing, rotating end 110 drives first gear 121 by it is just changeing, first gear 121 drives second gear 122 just to be changeed, second gear 122 drives the 3rd gear 123 just to be changeed, poke rod on the 3rd gear 123 drives pulling piece 127 and moves right, pulling piece 127 drives shell fragment 126 and the arculae group moves right together, make moving contact 102 and fixed contact 103 closed connections, the pressure of positive stop spring plate 109 or limit spring 129 can guarantee that moving contact 102 reliably contacts with fixed contact 103.

Work as, 114 when adding the negative pulse electric current, the motor counter-rotating, drive 121 counter-rotatings of first gear, first gear 121 drives 122 counter-rotatings of second gear, second gear 122 drives 123 counter-rotatings of the 3rd gear, poke rod on the 3rd gear 123 drives pulling piece 127 to left movement, pulling piece 127 drives that shell fragments 126 and arculae group move to positive stop spring plate 109 together left or limit spring 129 range places, moving contact 102 and fixed contact 103 are disconnected, because the utility model embodiment provides relay to adopt big speed-up ratio multi-stage gear to slow down and limiting component, gear can be realized auto-lock function, can make the closure of contact or off-state keep stable.

More than a kind of relay that the utility model embodiment is provided be described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, part in specific embodiments and applications all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. relay, it is characterized in that, comprise: drain pan (115), described drain pan (115) is provided with and is used for drive actions motor (114), control circuit board (113), shell fragment (126), limiting component (109), arculae group, gear train, rotating shaft, movable contact spring (101) and static contact (104), wherein:

Described motor (114) is in transmission connection by gear train and rotating shaft, the final stage gear of described gear train is provided with pulling piece (127), described pulling piece (127) connects an end of shell fragment (126), the other end of described shell fragment (126) is connected on the arculae group, one end of described limiting component (109) is fixed on the wall of drain pan (115), the other end of described limiting component (109) is pressed on the described arculae group, also be provided with moving contact (102) on the described arculae group, one end of the corresponding moving contact of described static contact (104) (102) is provided with fixed contact (103), one end of movable contact spring (101) is connected on the described arculae group, and contact pin and binding post (112) are arranged on the described control circuit board (113).

2. relay according to claim 1, it is characterized in that described arculae group comprises and superposes successively from big to small and be arranged on first arculae (116), second arculae (117), the 3rd arculae (118) on the described drain pan (115) and comprise the shell fragment (126) that is arranged on first arculae (116).

3. relay as claimed in claim 1 or 2 is characterized in that described limiting component (109) is limit spring or positive stop spring plate.

4. relay according to claim 1, it is characterized in that, the rotation of described motor (114) holds 110 meshing first gear (121) to be arranged, meshing second gear of described first gear (121) (122), meshing the 3rd gear of described second gear (122) (123), described first gear (121) and the 3rd gear (123) all are installed in second rotating shaft (125), and described second gear (122) is installed in first rotating shaft (124).