CN207338252U - A retractable push relay - Google Patents

Abstract

The utility model relates to a relay technical field, concretely relates to flexible promotion formula relay, including magnetic circuit, contact system and transmission system, transmission system's one end is connected in magnetic circuit, and transmission system's the other end is connected in contact system, its characterized in that: magnetic circuit includes the base, installs the fixed iron core in the base, twines in the coil in the base outside, is fixed in the yoke of base, sliding connection in the slip iron core of base for the elastic component that the drive slip iron core resets, the coil encircles the setting of fixed iron core, the one end and the fixed iron core of yoke are connected, the other end and the base interval of yoke set up, the other end of yoke is used for attracting the slip iron core, the slip iron core switches on or breaks off via transmission system drive contact system. The utility model discloses combine the effect design relay of magnetic force and mechanical force, compact structure, simple to operate, low in manufacturing cost.

Description

A retractable push relay

technical field

The utility model relates to the technical field of relays, in particular to a telescopic push relay.

Background technique

Electromagnetic relay is an electronic control device, usually including iron core, coil, armature, yoke, moving reed, contacts and other components. As long as a certain voltage is applied to both ends of the coil, a certain current will flow through the coil, thereby generating an electromagnetic effect. The moving contact of the moving reed is closed with the normally open static contact; when the coil is powered off, the electromagnetic suction will disappear, and the armature will return to its original position by the elastic force of the moving reed, making the moving reed The moving contact is disconnected from the normally open static contact or closed with the normally closed static contact. This kind of device that uses the on-off of low-voltage and weak-current circuits to indirectly control high-voltage and high-current circuits plays the role of automatic adjustment, safety protection, and conversion circuits in the circuit. Therefore, electromagnetic relays are widely used. Used in various automatic control equipment. At present, with the miniaturization of electrical appliances, higher requirements are put forward for the structural design of relays.

Utility model content

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a telescopic push relay, which has good reliability, strong impact resistance, simple assembly and low manufacturing cost.

The purpose of this utility model is achieved through the following technical solutions: a telescopic push relay, including a magnetic circuit system, a contact system and a transmission system, one end of the transmission system is connected to the magnetic circuit system, and the other end of the transmission system is connected to the The contact system, the magnetic circuit system includes a base, a fixed iron core installed in the base, a coil wound outside the base, a yoke fixed to the base, a sliding iron core slidably connected to the base, The elastic part used to drive the sliding iron core back, the coil is set around the fixed iron core, one end of the yoke is connected to the fixed iron core, the other end of the yoke is spaced from the base, and the other end of the yoke is used to attract the sliding iron core , the sliding iron core drives the contact system to conduct or disconnect through the transmission system.

After the magnetic circuit system is powered on, it will generate magnetism, and the yoke iron and the sliding iron core will attract each other, thereby driving the control contact system of the transmission system to disconnect. The iron core slides, and the sliding iron core drives the contact system to conduct through the transmission system. The utility model combines magnetic force and mechanical force to design a relay, which has compact structure, convenient installation and low manufacturing cost.

Further, the sliding iron core is provided with a protruding ring, the elastic member is a spring, and the spring is sheathed on the outside of the sliding iron core, and the two ends of the spring respectively resist the protruding ring and the base.

The utility model makes the base block the spring by making the spring collide with the base and the protruding ring, and when the spring returns to its original shape, the sliding iron core is driven to slide, so that the sliding iron core is separated from the fixed iron core.

Further, the base portion of the spring against the base is a cubic hollow column, and the cubic hollow column is integrally formed with other parts of the base.

Further, the yoke includes a main body and a suction part bent and extended from the main body, the suction part is used to attract the sliding iron core, the main body is U-shaped, the main body is sleeved on the outside of the base, and the two sides of the base The sides are respectively provided with protrusions, and the main body is provided with clamping holes for accommodating the protrusions.

In the utility model, the main part of the yoke is designed to be U-shaped, and is sheathed on the outside of the base, which can reduce the assembly procedure, and the cooperation between the yoke and the base is relatively stable, increasing the reliability of the relay.

Further, the sliding iron core is provided with a first slot, and one end of the transmission system protrudes into the first slot.

Further, the contact system is provided with a static contact, a moving reed, and a moving contact fixed on the moving reed. The other end of the transmission system is engaged with the moving reed, and the sliding iron core is realized through the transmission system. Make and break of moving contact and static contact.

Further, the moving reed includes a first part and a second part, the length of the first part is greater than the length of the second part, one end of the first part is connected to one end of the second part, and the other end of the first part is fixed with a first A terminal, the movable contact is fixed at the other end of the second part.

The movable reed of the utility model is designed as two parts integrally formed, which can conveniently control the on-off of the circuit, and the length of the first part is greater than that of the second part, which is convenient for wiring.

Further, the contact system further includes a connection plate, the static contact is fixedly connected to one end of the connection plate, and the other end of the connection plate is connected to a second terminal.

The utility model is provided with a connecting plate connected to the static contact, and connected to the second terminal through the connecting plate, which facilitates wiring.

Further, it also includes a housing, the magnetic circuit system, the contact system and the transmission system are all accommodated in the housing, the first terminal and the second terminal both protrude out of the housing, and the connecting plate and the housing Phase card connection.

Because the utility model is clamped with the shell through the connecting plate, it is convenient for positioning when the relay is assembled.

Further, the housing includes a rear shell and a cover plate, the upper and lower ends of the rear shell are provided with clamping parts, and the upper and lower ends of the cover are provided with second clamping grooves for accommodating the clamping parts.

Further, it also includes two power cords, one end of the two power cords is respectively connected to the two ends of the coil, and the other ends of the two power cords protrude out of the casing.

The beneficial effect of the utility model is that: after the magnetic circuit system is powered on, magnetism is generated, and the yoke iron and the sliding iron core attract each other, thereby driving the transmission system to control the contact system to be disconnected. When the magnetic circuit system is powered off, the magnetism disappears, and the elastic part Under the action of its own restoring force, the sliding iron core is driven to slide, and the sliding iron core drives the contact system to conduct through the transmission system. The utility model combines magnetic force and mechanical force to design a relay, which has compact structure, convenient installation and low manufacturing cost.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram hidden behind the shell of the utility model;

Fig. 2 is the structural representation of magnetic circuit system of the present utility model;

Fig. 3 is a structural schematic diagram of a sliding iron core of the present invention;

Fig. 4 is a three-dimensional schematic view of the utility model;

Fig. 5 is an exploded schematic view of the housing of the present invention.

The reference signs are:

1-magnetic circuit system; 2-contact system; 3-transmission system;

4-shell; 5-power cord; 11-base;

12-fixed iron core; 13-coil; 14-yoke iron;

15-sliding iron core; 16-elastic piece; 17-bump;

21-static contact; 22-moving reed; 23-moving contact;

24-the first terminal; 25-the second terminal; 26-connection plate;

151-convex ring; 152-the first card slot; 221-the first part;

222-second part; 41-back shell; 42-cover plate;

411-clamping part; 421-second card slot.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and drawings, and the content mentioned in the implementation mode is not to limit the utility model.

Please refer to accompanying drawings 1 and 5, a telescopic push-type relay includes a magnetic circuit system 1, a contact system 2 and a transmission system 3, one end of the transmission system 3 is connected to the magnetic circuit system 1, and the transmission system 3 The other end is connected to the contact system 2. The magnetic circuit system 1 includes a base 11, a fixed iron core 12 installed in the base 11, a coil 13 wound on the outside of the base 11, and a yoke fixed to the base 11. Iron 14, slidingly connected to the sliding iron core 15 of the base 11, the elastic member 16 for driving the sliding iron core 15 to reset, the coil 13 is arranged around the fixed iron core 12, one end of the yoke iron 14 is connected with the fixed iron core 12, and the yoke The other end of the iron 14 is spaced from the base 11 , the other end of the yoke 14 is used to attract the sliding iron core 15 , and the sliding iron core 15 drives the contact system 2 to conduct or disconnect through the transmission system 3 .

Further, the sliding iron core 15 is provided with a protruding ring 151 , the elastic member 16 is a spring, and the spring is sleeved on the outside of the sliding iron core 15 , and the two ends of the spring respectively resist the protruding ring 151 and the base 11 .

Further, the yoke 14 includes a main body and a suction portion bent and extended from the main body, the suction portion is used to attract the sliding iron core 15, the main body is U-shaped, and the main body is sleeved on the outside of the base 11, basically The two sides of the seat 11 are respectively provided with protrusions 17 , and the main body is provided with a clamping hole for accommodating the protrusions 17 .

Further, the sliding iron core 15 is provided with a first card slot 152 , and one end of the transmission system 3 protrudes into the first card slot 152 .

Further, the contact system 2 is provided with a static contact 21, a moving reed 22, and a moving contact 23 fixed on the moving reed 22, and the other end of the transmission system 3 is engaged with the moving reed 22. , the sliding iron core 15 realizes the on-off of the movable contact 23 and the static contact 21 via the transmission system 3 .

Further, the moving reed 22 includes a first part 221 and a second part 222, the length of the first part 221 is greater than the length of the second part 222, one end of the first part 221 is connected with one end of the second part 222, and the first part The other end of 221 is fixed with the first terminal 24 , and the movable contact 23 is fixed at the other end of the second part 222 .

Further, the contact system 2 further includes a connecting plate 26 , the static contact 21 is fixedly connected to one end of the connecting plate 26 , and the second terminal 25 is connected to the other end of the connecting plate 26 .

Further, it also includes a housing 4, the magnetic circuit system 1, the contact system 2 and the transmission system 3 are all accommodated in the housing 4, and the first terminal 24 and the second terminal 25 protrude out of the housing 4, the connecting plate 26 is clamped with the housing 4.

Further, the housing 4 includes a rear shell 41 and a cover plate 42, the upper and lower ends of the rear shell 41 are provided with clamping parts 411, and the upper and lower ends of the cover are provided with clamping parts 411 for accommodating them. The second card slot 421.

Further, it also includes two power cords 5 , one ends of the two power cords 5 are respectively connected to the two ends of the coil 13 , and the other ends of the two power cords 5 protrude out of the casing 4 .

The above-mentioned embodiment is a preferred implementation of the utility model. In addition, the utility model can also be realized in other ways. Any obvious replacement is within the scope of protection of the utility model without departing from the concept of the utility model. Inside.

Claims (10)

1. A telescopic push relay, comprising a magnetic circuit system, a contact system and a transmission system, one end of the transmission system is connected to the magnetic circuit system, and the other end of the transmission system is connected to the contact system, it is characterized in that: the The magnetic circuit system includes a base, a fixed iron core installed in the base, a coil wound outside the base, a yoke fixed to the base, and a sliding iron core slidingly connected to the base for driving the sliding iron core. The reset elastic part, the coil is set around the fixed iron core, one end of the yoke is connected to the fixed iron core, the other end of the yoke is spaced from the base, the other end of the yoke is used to attract the sliding iron core, and the sliding iron core passes through the transmission The system drives the contact system to turn on or off. 2. A telescopic push-type relay according to claim 1, characterized in that: the sliding iron core is provided with a protruding ring, the elastic member is a spring, and the spring is sleeved on the outside of the sliding iron core, and the two ends of the spring are respectively Interfere with the collar and base. 3. A telescopic push-type relay according to claim 1, characterized in that: the yoke comprises a main body and a suction part bent and extended from the main body, the suction part is used to attract the sliding iron core, the main body is in the shape of U-shaped, the main body is sleeved on the outer side of the base, the two sides of the base are respectively provided with protrusions, and the main body is provided with a clamping hole for accommodating the protrusions. 4 . The telescopic push relay according to claim 1 , wherein the sliding iron core is provided with a first slot, and one end of the transmission system protrudes into the first slot. 5 . 5. A telescopic push relay according to claim 1, characterized in that: the contact system is provided with a static contact, a moving reed, a moving contact fixed on the moving reed, the transmission system The other end is clamped with the moving reed, and the sliding iron core realizes the on-off of the moving contact and the static contact through the transmission system. 6. A retractable push relay according to claim 5, characterized in that: said movable reed comprises a first part and a second part, the length of the first part is greater than the length of the second part, and one end of the first part It is connected with one end of the second part, the other end of the first part is fixed with a first terminal, and the movable contact is fixed at the other end of the second part. 7. A telescopic push-type relay according to claim 5, characterized in that: said contact system also includes a connection plate, the static contact is fixedly connected to one end of the connection plate, and the other end of the connection plate is connected to a second binding post. 8. A telescopic push-type relay according to claim 7, characterized in that: it also includes a housing, the magnetic circuit system, contact system and transmission system are all accommodated in the housing, the first terminal and the second The two terminals protrude out of the housing, and the connecting plate is engaged with the housing. 9. A telescopic push-type relay according to claim 8, characterized in that: the housing includes a rear case and a cover plate, the upper and lower ends of the rear case are provided with clamping parts, and the upper and lower ends of the cover body Both ends are provided with a second card slot for accommodating the clamping portion. 10. A telescopic push-type relay according to claim 8, characterized in that: it also includes two power cords, one end of the two power cords is respectively connected to the two ends of the coil, and the other ends of the two power cords protrude out of the housing.