CN215265862U

CN215265862U - Relay with enhanced attraction force

Info

Publication number: CN215265862U
Application number: CN202121067636.XU
Authority: CN
Inventors: 吴金良; 陈小冬
Original assignee: Zhejiang Zhongxin New Energy Technology Co ltd
Current assignee: Zhejiang Zhongxin New Energy Technology Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-21
Anticipated expiration: 2031-05-19

Abstract

The utility model discloses a relay of reinforcing actuation, including shell, installation section of thick bamboo, bobbin, move the iron core, decide iron core, magnetic ring, magnetic conductive plate, U-shaped yoke, the inside cavity that is equipped with of shell, the bottom of cavity are fixed with a U-shaped yoke, and U-shaped yoke middle part is equipped with a solid fixed cylinder, and the installation section of thick bamboo lower part inserts in the solid fixed cylinder, the bobbin cover is in the outside of the assembly that installation section of thick bamboo and solid fixed cylinder constitute, and the winding has the coil on the bobbin, decide to install a magnetic ring on the iron core, the external diameter of magnetic ring equals the external diameter of iron core, it is fixed with a magnetic conductive plate to decide the iron core top, and magnetic conductive plate is fixed mutually with U-shaped yoke, and magnetic conductive plate is located the top of installation section of thick bamboo. The utility model discloses a set up the magnetic ring on deciding the iron core for the relay has improved the suction under the unchangeable condition of coil, helps improving the electric current and the volume ratio of relay, thereby realizes miniaturized heavy current relay.

Description

Relay with enhanced attraction force

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic component's technical field, especially the technical field of relay.

[ background of the invention ]

A relay, also known as a relay, is an electronic control device having a control system, also known as an input loop, and a controlled system, also known as an output loop, which is commonly used in automatic control circuits, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The ratio of the suction force to the coil power consumption of the existing relay is not ideal enough.

[ Utility model ] content

The utility model aims at solving the problem among the prior art, providing a relay of reinforcing actuation, can improve the actuation under the inconvenient condition of coil consumption.

In order to achieve the above purpose, the utility model provides a relay for enhancing suction force, which comprises a shell, an installation cylinder, a bobbin, a movable iron core, a fixed iron core, a magnetic ring, a magnetic conductive plate and a U-shaped yoke, wherein the shell is internally provided with a cavity, the bottom of the cavity is fixed with the U-shaped yoke, the middle part of the U-shaped yoke is provided with a fixed cylinder, the lower part of the installation cylinder is inserted into the fixed cylinder, the bobbin is sleeved outside a combined body formed by the installation cylinder and the fixed cylinder, a coil is wound on the bobbin, the fixed iron core is provided with the magnetic ring, the outer diameter of the magnetic ring is equal to the outer diameter of the iron core, the top of the fixed iron core is fixed with the magnetic conductive plate which is fixed with the U-shaped yoke, the magnetic conductive plate is positioned above the installation cylinder, the fixed iron core is inserted into the installation cylinder, the fixed iron core is provided with a push rod capable of moving up and down, and the push rod penetrates through the upper and lower ends of the fixed iron core, the bottom of the push rod is fixed with a movable iron core, a reset spring is clamped between the fixed iron core and the movable iron core, a movable contact spring is installed at the top of the push rod, two contacts matched with the movable contact spring are installed at the top of the shell, and the lower ends of the contacts are located in the cavities.

Preferably, the return spring is sleeved on the push rod, and the upper end and the lower end of the spring are respectively embedded in the fixed iron core and the movable iron core.

Preferably, a limiting body is fixed on the push rod, a pressure spring is clamped between the limiting body and the movable contact piece, and the pressure spring is sleeved on the push rod.

Preferably, the fixed iron core is composed of a first cylinder, a second cylinder and a third cylinder which are sequentially connected from top to bottom and have sequentially increased outer diameters, the first cylinder is sleeved with the magnetic conduction plate, the magnetic conduction plate is fixed to the top end of the second cylinder, and the second cylinder is sleeved with the magnetic ring.

Preferably, the upper end face of the third cylinder is located at the upper part of the fixed iron core, and the height of the magnetic ring is slightly smaller than that of the second cylinder.

Preferably, the upper end face of the third cylinder is located in the middle of the fixed iron core, the second cylinder is sleeved with an auxiliary sleeve, the lower end face of the auxiliary sleeve is in contact with the upper end face of the magnetic ring, and the sum of the height of the magnetic ring and the height of the auxiliary sleeve is slightly smaller than the height of the second cylinder.

The utility model has the advantages that: the utility model has the advantages that the magnetic ring is arranged on the fixed iron core, so that the attraction force of the relay is improved under the condition that the coil is not changed, the current and volume ratio of the relay is improved, and the miniaturized heavy-current relay is realized; after the relay is powered off, if the holding force generated by the magnetic ring is smaller than the sum of the acting forces of the pressure spring and the reset spring, the contact and the movable contact piece are disconnected, and the relay operates in a monostable state; after the relay is powered off, if the holding force generated by the magnetic ring is greater than the sum of the acting forces of the pressure spring and the reset spring, the contact and the movable contact piece continue to be connected, and the relay operates in a bistable state; a step is formed between the first column body and the second column body, so that the magnetic ring is not easily crushed by the magnetic conduction plate.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a front view of an embodiment of a relay for enhancing attraction force according to the present invention;

fig. 2 is a front view of the second embodiment of the relay with enhanced attraction force of the present invention.

In the figure: 1-shell, 2-fixed iron core, 3-movable iron core, 10-contact, 11-U-shaped yoke, 12-fixed cylinder, 13-installation cylinder, 14-bobbin, 20-magnetic conduction plate, 21-first cylinder, 22-second cylinder, 23-third cylinder, 24-magnetic ring, 25-auxiliary sleeve, 30-reset spring, 31-push rod, 32-movable contact, 33-limiting body and 34-pressure spring.

[ detailed description ] embodiments

The first embodiment is as follows:

referring to fig. 1, the utility model relates to a relay for enhancing attraction, which comprises a housing 1, an installation cylinder 13, a bobbin 14, a movable iron core 3, a fixed iron core 2, a magnetic ring 24, a magnetic conductive plate 20, a U-shaped yoke 11, wherein the housing 1 is internally provided with a cavity, the bottom of the cavity is fixed with the U-shaped yoke 11, the middle part of the U-shaped yoke 11 is provided with a fixed cylinder 12, the lower part of the installation cylinder 13 is inserted into the fixed cylinder 12, the bobbin 14 is sleeved outside a combined body formed by the installation cylinder 13 and the fixed cylinder 12, the bobbin 14 is wound with a coil, the fixed iron core 2 is provided with the magnetic ring 24, the magnetic field generated after the coil is electrified is consistent with the magnetic field of the magnetic ring 24, the top of the fixed iron core 2 is fixed with the magnetic conductive plate 20, the magnetic conductive plate 20 is fixed with the U-shaped yoke 11, the magnetic conductive plate 20 is positioned above the installation cylinder 13, the fixed iron core 2 is inserted into the installation cylinder 13, a push rod 31 capable of moving up and down is inserted on the fixed iron core 2, the push rod 31 penetrates through the upper end and the lower end of the fixed iron core 2, the bottom of the push rod 31 is fixed with a movable iron core 3, a reset spring 30 is clamped between the fixed iron core 2 and the movable iron core 3, a movable contact spring 32 is installed at the top of the push rod 31, two contacts 10 matched with the movable contact spring 32 are installed at the top of the shell 1, the lower end of the contact 10 is positioned in a cavity, the reset spring 30 is sleeved on the push rod 31, the upper end and the lower end of the spring are respectively embedded in the fixed iron core 2 and the movable iron core 3, a limiting body 33 is fixed on the push rod 31, a pressure spring 34 is clamped between the limiting body 33 and the movable contact spring 32, the pressure spring 34 is sleeved on the push rod 31, the fixed iron core 2 is composed of a first cylinder 21, a second cylinder 22 and a third cylinder 23 which are sequentially connected from top to bottom and have sequentially larger outer diameters, the magnetic conducting plate 20 is sleeved on the first column body 21, the magnetic conducting plate 20 is fixed with the top end of the second column body 22, the magnetic ring 24 is sleeved on the second column body 22, the upper end face of the third column body 23 is positioned at the upper part of the fixed iron core 2, and the height of the magnetic ring 24 is slightly smaller than that of the second column body 22.

Example two:

referring to fig. 2, the difference between the first embodiment and the second embodiment is that the upper end surface of the third column 23 is located in the middle of the fixed iron core 2, the second column 22 is sleeved with an auxiliary sleeve 25, the lower end surface of the auxiliary sleeve 25 is in contact with the upper end surface of the magnetic ring 24, and the sum of the height of the magnetic ring 24 and the height of the auxiliary sleeve 25 is slightly smaller than the height of the second column 22.

The utility model discloses the working process:

in the working process of the relay for enhancing the attraction force, the magnetic ring 24 is arranged on the fixed iron core 2, so that the attraction force of the relay is improved under the condition that the coil is not changed, the current and volume ratio of the relay are improved, and the miniaturized high-current relay is realized; after the relay is powered off, if the holding force generated by the magnetic ring 24 is smaller than the sum of the acting forces of the pressure spring 34 and the reset spring 30, the contact 10 and the movable contact piece 32 are disconnected, and the relay operates in a monostable state; after the relay is powered off, if the holding force generated by the magnetic ring 24 is larger than the sum of the acting forces of the pressure spring 34 and the reset spring 30, the contact 10 and the movable contact piece 32 are continuously connected, and the relay operates in a bistable state; a step is formed between the first column 21 and the second column 22, so that the magnetic ring 24 is not easily crushed by the magnetic conduction plate 20.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a relay of reinforcing actuation which characterized in that: the magnetic field magnetic flux-cored wire comprises a shell (1), an installation cylinder (13), a winding cylinder (14), a movable iron core (3), a fixed iron core (2), a magnetic ring (24), a magnetic conductive plate (20) and a U-shaped yoke (11), wherein a cavity is arranged inside the shell (1), the bottom of the cavity is fixed with the U-shaped yoke (11), the middle part of the U-shaped yoke (11) is provided with a fixed cylinder (12), the lower part of the installation cylinder (13) is inserted into the fixed cylinder (12), the winding cylinder (14) is sleeved outside a combined body formed by the installation cylinder (13) and the fixed cylinder (12), the winding cylinder (14) is wound with a coil, the fixed iron core (2) is provided with the magnetic ring (24), the magnetic field generated after the coil is electrified is consistent with the magnetic field of the magnetic ring (24), the top of the fixed iron core (2) is fixed with the magnetic conductive plate (20), and the magnetic conductive plate (20) is fixed with the U-shaped yoke (11), the magnetic conduction plate (20) is located above the installation cylinder (13), the fixed iron core (2) is inserted into the installation cylinder (13), a push rod (31) capable of moving up and down is inserted on the fixed iron core (2), the push rod (31) penetrates through the upper end and the lower end of the fixed iron core (2), the bottom of the push rod (31) is fixed with a movable iron core (3), a reset spring (30) is clamped between the fixed iron core (2) and the movable iron core (3), a movable contact spring (32) is installed at the top of the push rod (31), two contacts (10) matched with the movable contact spring (32) are installed at the top of the shell (1), and the lower end of each contact (10) is located in a cavity.

2. The attraction force enhancing relay according to claim 1, wherein: the reset spring (30) is sleeved on the push rod (31), and the upper end and the lower end of the spring are respectively embedded into the fixed iron core (2) and the movable iron core (3).

3. The attraction force enhancing relay according to claim 1, wherein: a limiting body (33) is fixed on the push rod (31), a pressure spring (34) is clamped between the limiting body (33) and the movable contact piece (32), and the pressure spring (34) is sleeved on the push rod (31).

4. The attraction force enhancing relay according to claim 1, wherein: the fixed iron core (2) is composed of a first cylinder (21), a second cylinder (22) and a third cylinder (23) which are sequentially connected from top to bottom and of which the outer diameter is sequentially increased, a magnetic conduction plate (20) is sleeved on the first cylinder (21), the magnetic conduction plate (20) is fixed to the top end of the second cylinder (22), and a magnetic ring (24) is sleeved on the second cylinder (22).

5. The attraction force enhancing relay according to claim 4, wherein: the upper end face of the third column body (23) is positioned at the upper part of the fixed iron core (2), and the height of the magnetic ring (24) is slightly smaller than that of the second column body (22).

6. The attraction force enhancing relay according to claim 4, wherein: the upper end face of the third cylinder (23) is located in the middle of the fixed iron core (2), the second cylinder (22) is sleeved with an auxiliary sleeve (25), the lower end face of the auxiliary sleeve (25) is in contact with the upper end face of the magnetic ring (24), and the sum of the height of the magnetic ring (24) and the height of the auxiliary sleeve (25) is slightly smaller than the height of the second cylinder (22).