CN207651428U

CN207651428U - A kind of relay of low noise

Info

Publication number: CN207651428U
Application number: CN201820003422.8U
Authority: CN
Inventors: 唐锋; 卢婕; 徐琛
Original assignee: ZHEJIANG HONGZHOU NEW ENERGY TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG HONGZHOU NEW ENERGY TECHNOLOGY Co Ltd
Priority date: 2018-01-02
Filing date: 2018-01-02
Publication date: 2018-07-24
Anticipated expiration: 2028-01-02

Abstract

A kind of relay of low noise, including shell, the iron cup that is tightly attached to outer casing inner wall, toward iron cup center position install successively bobbin, oilless bearing, dynamic iron core, gasket, the axis for being built in dynamic iron core and being fixedly connected with dynamic iron core, spring base is machined on axis, movable contact spring is fixed on spring base and is supported by contact spring, resilient sleeper-bearing is housed between contact spring and spring base, rubber ring is also equipped in oilless bearing, below dynamic iron core；Due to the synergy of contact spring and resilient sleeper-bearing, the pressure bigger after making movable contact spring be completely attached to stationary contact, impact smaller when dynamic iron core is contacted with gasket；When dynamic iron core resets, due to the presence of rubber ring, dynamic iron core is contacted prior to rubber ring, is resetted in the Light deformation of rubber ring；By increasing resilient sleeper-bearing and rubber ring, prolong the service life while relay noise can be reduced.

Description

A kind of relay of low noise

Technical field

The utility model is related to a kind of relays of low noise.

Background technology

Relay is widely used in electrical automation field, and the operation principle of relay is real by the break-make of low-voltage circuit The control of existing high-tension line break-make, highly sensitive relay generally selects the larger resetting spring of coefficient of elasticity, and elasticity is The big resetting spring of number will necessarily make relay generate certain noise during the work time in the actual use process how While ensureing relay sensitivity, noise is effectively reduced, it is significant for the comprehensive performance for improving relay.

Utility model content

Shortcoming present in regarding to the issue above, the utility model provide a kind of relay of low noise.

To achieve the above object, the utility model provides a kind of relay of low noise, including shell, be tightly attached to it is described outer The iron cup of shell inner wall, toward the iron cup center position install successively bobbin, oilless bearing, dynamic iron core, be built in it is described The axis being fixedly connected in dynamic iron core and with the dynamic iron core is machined with spring base on the axis, and movable contact spring is fixed on the spring It is supported on seat and by contact spring, it is characterised in that：Resilient sleeper-bearing, institute are also equipped between the contact spring and the spring base It states in oilless bearing, be also equipped with rubber ring below the dynamic iron core.

The axis is multidiameter shaft as a further improvement of the utility model, and the lower end of the axis passes through the dynamic iron core And it is fixed by clamp spring.

The movable contact spring upper end is limited by the axis card of the axis as a further improvement of the utility model,.

The movable contact spring is fixedly arranged above two stationary contacts as a further improvement of the utility model,.

The shape of the resilient sleeper-bearing is inverted isosceles trapezoid, the bullet as a further improvement of the utility model, The raised hasp in upper surface of property backing plate, the hasp are fastened on the movable contact spring.

The material of the rubber ring is polymetylmethacrylate as a further improvement of the utility model,.

The thickness of the rubber ring is more than the dynamic iron core in the relay as a further improvement of the utility model, Axial movement maximum value.

The beneficial effects of the utility model are：

1, this relay is by increasing resilient sleeper-bearing and rubber ring, while noise during reducing relay use The service life for extending relay meets requirement of the client to product.

2, the thickness of rubber ring is more than the maximum value of axial movement of the dynamic iron core in the relay, ensures to release in relay Dynamic iron core is first contacted with rubber ring when putting, and is avoided dynamic iron core contact iron cup and is made a noise.

Description of the drawings

Fig. 1 is a kind of relay sectional view of low noise of the utility model；

Fig. 2 is the enlarged drawing of location A in Fig. 1；

Fig. 3 is the enlarged drawing of B location in Fig. 1；

Fig. 4 is the part drawing of resilient sleeper-bearing；

Fig. 5 is the part drawing of rubber ring.

In figure：1, shell；2, iron cup；3, bobbin；4, oilless bearing；5, dynamic iron core；6, axis；61, spring base；7, elastic Backing plate；71, hasp；8, contact spring；9, movable contact spring；10, axis card；11, stationary contact；12, rubber ring.

Specific implementation mode

As shown in Figure 1, a kind of relay of low noise of the utility model embodiment, including shell 1, it is tightly attached to shell 1 The iron cup 2 of inner wall, toward iron cup 2 center position install successively bobbin 3, oilless bearing 4 and by dynamic iron core 5, be built in it is dynamic The component of the component assemblies such as the axis 6 being fixedly connected in iron core 5 and with dynamic iron core 5；

As shown in Fig. 2, axis 6 is multidiameter shaft, the lower end of axis 6 passes through the hole of reaction spring, the hole of guide plate, gasket, passes through Dynamic iron core 5 is simultaneously fixed by clamp spring, as shown in figure 3, be machined with spring base 61 on axis 6, by the upper end of axis 6 equipped with resilient sleeper-bearing 7, Contact spring 8, movable contact spring 9, and limited by axis card 10, movable contact spring 9 is fixedly arranged above two stationary contacts 11 (shown in Fig. 1)；

Resilient sleeper-bearing 7 is also equipped between contact spring 8 and spring base 61, as shown in figure 4, the shape of resilient sleeper-bearing 7 is to fall The isosceles trapezoid set, the raised hasp 71 in upper surface of resilient sleeper-bearing 7, hasp 71 are fastened on movable contact spring 9；Oilless bearing 4 interior, dynamic iron core 5 lower sections are also equipped with rubber ring 12, and the material of rubber ring 12 is polymetylmethacrylate, rubber ring 12 Thickness be more than axial movement of the dynamic iron core 5 in the relay maximum value.

By increasing resilient sleeper-bearing and rubber ring, noise during reducing relay use while, prolongs this relay The service life for having grown relay, meets requirement of the client to product, and the thickness of rubber ring is more than dynamic iron core in the relay Axial movement maximum value, ensure that when relay discharges, dynamic iron core is contacted prior to rubber ring.

When specifically used, the utility model is understood for convenience, is described in conjunction with attached drawing；

When low-voltage circuit is connected, dynamic iron core 5 generates adsorption capacity and up moves, since contact spring is Hookean spring, Its elastic force meets Hooke's law, and the elastic force of contact spring is directly proportional to the deflection of spring, and resilient sleeper-bearing is leaf spring, Elastic force is not directly proportional to deflection, the variation of elastic force and deflection square at certain proportionate relationship.So working as dynamic iron core When starting up to move, less, movable contact spring first contacts resistance (elastic force of contact spring and resilient sleeper-bearing) with stationary contact, moves iron It is contacted after core and gasket, when dynamic iron core contacts soon with gasket, resistance becomes larger, the absorption that maximum resistance is generated close to dynamic iron core The synergy of power, contact spring and resilient sleeper-bearing makes dynamic iron core lightly touch on gasket；

When low-voltage circuit disconnects, in the effect of the elastic force and dead weight of contact spring and resilient sleeper-bearing and reaction spring Under, dynamic iron core resets, and due to the presence of rubber ring 12, dynamic iron core 5 is first contacted with rubber ring, will not first touch the bottom of iron cup 2 Portion avoids the generation of noise.Dynamic iron core 5 resets in the Light deformation of rubber ring, can reduce the collision of axis lower end when reset； The relay extends service life while reducing work noise, meets client by increasing resilient sleeper-bearing and rubber ring Demand to product.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims

1. a kind of relay of low noise, including shell (1), the iron cup (2) for being tightly attached to the shell (1) inner wall, the past iron Cup (2) center position install successively bobbin (3), oilless bearing (4), dynamic iron core (5), be built in the dynamic iron core (5) Axis (6) that is interior and being fixedly connected with the dynamic iron core (5), spring base (61) is machined on the axis (6), and movable contact spring (9) is fixed It is supported on the spring base (61) and by contact spring (8), it is characterised in that：The contact spring (8) and the spring base (61) it is also equipped with resilient sleeper-bearing (7) between, rubber ring is also equipped in the oilless bearing (4), below the dynamic iron core (5) (12)。

2. a kind of relay of low noise according to claim 1, it is characterised in that：The axis (6) is multidiameter shaft, described The lower end of axis (6) passes through the dynamic iron core (5) and is fixed by clamp spring.

3. a kind of relay of low noise according to claim 1, it is characterised in that：Movable contact spring (9) upper end is by institute State axis card (10) limit of axis (6).

4. a kind of relay of low noise according to claim 1, it is characterised in that：It is fixed above the movable contact spring (9) There are two stationary contacts (11).

5. a kind of relay of low noise according to claim 1, it is characterised in that：The shape of the resilient sleeper-bearing (7) For inverted isosceles trapezoid, the raised hasp in upper surface (71) of the resilient sleeper-bearing (7), the hasp (71) is fastened on On the movable contact spring (9).

6. a kind of relay of low noise according to claim 1, it is characterised in that：The material of the rubber ring (12) is Polymetylmethacrylate.

7. a kind of relay of low noise according to claim 1, it is characterised in that：The thickness of the rubber ring (12) is big In the maximum value of axial movement of the dynamic iron core (5) in the relay.