CN214624628U

CN214624628U - Novel cylindrical electromagnet

Info

Publication number: CN214624628U
Application number: CN202120927406.XU
Authority: CN
Inventors: 王�锋
Original assignee: Individual
Current assignee: Shaanxi Qingyun Zhitong Fluid Control Equipment Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-05
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a novel cylinder electro-magnet, including first casing, first casing cross section is the ring, and the lower extreme of first casing is provided with the connector, and the diameter of connector is less than the diameter of first casing, the inside coil pack that is provided with of first casing. The utility model discloses set up the environmental protection sealed glue, fill the environmental protection sealed glue through the clearance department between given iron core and the coil skeleton, be convenient for fix the fixed iron core in the coil skeleton, avoid the fixed iron core to cause the unstability of fixed iron core because of the magnetic force influence of moving the iron core after the circular telegram, and then influence and move the iron core and slide in the coil skeleton; the disk part on the fixed iron core is connected with the first shell through rolling or laser welding, and the wire outlet hole is protected through sealant, so that the product has better protection performance.

Description

Novel cylindrical electromagnet

Technical Field

The utility model belongs to the technical field of the solenoid valve, especially, relate to a novel cylinder electro-magnet.

Background

The electromagnet is an industrial component controlled by electromagnetism, the magnetism is controlled by whether the current passes or not and the on-off current, and the magnetism is controlled by the strength of the current or the number of turns of a coil, so that the electromagnet is very common in industrial application;

the structure of the electromagnet in the prior art is that a static iron core is fixed at the upper part of a sleeve, a movable iron core which can move up and down is arranged at the lower part of the sleeve, a coil framework is arranged outside the sleeve, an electromagnetic coil is wound on the coil framework, a housing or a mouth-shaped frame is arranged outside the electromagnetic coil, a reset spring is arranged between the static iron core and the movable iron core, one end of the spring is sunk into the static iron core or the movable iron core, and the reciprocating motion of the movable iron core is realized under the alternating action of electromagnetic force and the spring; however, the electromagnet in the prior art has a large gap, which affects a magnetic circuit; the suction force is small, and high integration level is difficult to realize; the central sleeve of the electromagnet is fixed on the iron core, and is installed with the external framework and the electromagnetic coil in a split type design in a plugging manner, so that the electromagnet does not have good protection performance and is not suitable for being applied to outdoor environment for long-term use; the spring is sunk into the iron core, the size of the electromagnet is generally large, a gap exists between the sleeve and the electromagnetic coil, the protection grade is generally low, the performance of the electromagnet is unstable, and the magnetic failure of the electromagnet can be caused by long-term work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel cylinder electro-magnet to solve the electro-magnet that the solenoid valve that exists among the prior art was used bulky, problem that suction is little, protection level is low.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a novel cylindrical electromagnet, includes first casing, and the lower extreme of first casing is provided with the connector, and the diameter of connector is less than the diameter of first casing, the inside coil pack that is provided with of first casing, coil pack includes coil skeleton, coil skeleton is hollow circle, the last coiling of coil skeleton has solenoid, coil skeleton is inside to be provided with the fixed iron core and to move the iron core, the upper end at first casing is fixed to the fixed iron core, it sets up the below at the fixed iron core to move the iron core, move iron core and coil skeleton sliding connection, the lower extreme that moves the iron core is provided with the spring, the upper end and the first casing of spring are connected, and the lower extreme and the movable iron core of spring are connected.

The fixed iron core comprises a first cylinder and a disc arranged at the top end of the first cylinder.

The movable iron core comprises a second cylinder, a circular truncated cone arranged at the bottom end of the second cylinder and a third cylinder arranged at the bottom end of the circular truncated cone, and an outer edge is arranged at the bottom end of the third cylinder; and a mounting hole is formed in the lower end of the movable iron core.

The connector is a circular ring, and the outer diameter of the connector is smaller than that of the first shell.

The spring is in a tower shape and is matched with the second cylinder, the circular table and the third cylinder, and the spring is wound on the outer sides of the circular table and the third cylinder.

And a lead is arranged on the first shell, and one end of the lead penetrates through the top end of the disc to be connected with the electromagnetic coil.

And a gap is reserved between the coil framework and the fixed iron core, and the gap is filled with sealant.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses set up the environmental protection sealed glue, fill the environmental protection sealed glue through the clearance department between given iron core and the coil skeleton, be convenient for fix the fixed iron core in the coil skeleton, avoid the fixed iron core to cause the unstability of fixed iron core because of the magnetic force influence of moving the iron core after the circular telegram, and then influence and move the iron core and slide in the coil skeleton; the disk part on the fixed iron core is connected with the first shell through rolling or laser welding, and the wire outlet hole is protected through sealant, so that the product has better protection performance.

2. The utility model discloses a will move the direct embedding coil skeleton of iron core, move the iron core and slide in the coil skeleton, coiling solenoid on the coil skeleton, the shell adopts the magnetic material car to make cask form, directly sets up in the solenoid outside, has reduced the magnetic gap, and suction is stronger under the same wire winding space for the solenoid valve volume further reduces, does benefit to integrated installation and miniaturization.

Drawings

FIG. 1 is a schematic view of the apparatus of the present invention;

FIG. 2 is a drawing showing the relationship between the casing and the disc and the lead wire according to the present invention;

FIG. 3 is a schematic view of the coil bobbin of the present invention;

fig. 4 is a schematic diagram of the stationary core of the present invention;

fig. 5 is a schematic view of the movable iron core of the present invention;

fig. 6 is a partially enlarged view of fig. 1.

In the drawing, a lead wire 1, a fixed iron core 2, a disc 2-1, a first column 2-2, a threaded hole 2-3, a coil framework 3, a movable iron core 4, a second column 4-1, a second round table 4-2, a third column 4-3, an outer edge 4-4, a connector 5, a mounting hole 6, a spring 7, an electromagnetic coil 8, a first shell 9 and a sealant 10 are arranged.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 and 2, a novel cylindrical electromagnet comprises a first housing 9, the cross section of the first housing 9 is a circular ring, a connecting head 5 is arranged at the lower end of the first housing 9, the diameter of the connecting head 5 is smaller than that of the first housing 9, the first shell 9 is internally provided with a coil assembly which comprises a coil framework 3, the coil framework 3 is a hollow circle, the coil framework 3 is wound with an electromagnetic coil 8, the coil framework 3 is internally provided with a fixed iron core 2 and a movable iron core 4, the fixed iron core 2 is fixed at the upper end of the first shell 9, the movable iron core 4 is arranged below the fixed iron core 2, move iron core 4 and coil skeleton 3 sliding connection, the lower extreme outside of moving iron core 4 is provided with spring 7, the upper end and the first casing 9 fixed connection of spring 7, the lower extreme and the iron core 4 fixed connection that moves of spring 7.

In this embodiment, during actual installation, solenoid 8 evenly winds on coil skeleton 3 along the line, coil skeleton 3 and first casing 9 and connector 5 coaxial setting, 3 centre holes of coil skeleton insert and decide iron core 2, decide iron core 2 and first casing 9 fixed connection, mobilizable movable iron core 4 is put into to 3 other end centre holes of coil skeleton, moves iron core 4 other end department installation spring 7, move iron core 4 reciprocating motion under electromagnetic suction and spring 7 reaction force, adopt the little clearance fit of high accuracy size between coil skeleton 3 and first casing 9 and the connector 5, guarantee coaxial setting for radial motion does not have and quivers, and the noise is low, and it is fast to respond to, and the action is steady.

In the embodiment, during actual installation, the first shell 9 and the connector 5 are made of high-permeability materials, and are turned into a circular-tube-shaped magnetic conduction shell, so that a good maintenance effect on internal structural components of the electromagnet assembly is achieved, the working reliability and smoothness of the series of electromagnets are ensured, and the stability and the service life of long-term working are ensured; corrosion-resistant materials are selected, and effective anti-corrosion treatment is performed on all the layers of components, so that the fixed iron core 2 and the movable iron core 4 can endure harsher environmental atmosphere, and the service life is prolonged; the cylindrical appearance design, the 2 afterbody domes 2-1 of deciding the iron core 2 simultaneously and first casing 9 zonulae occludens have realized better magnetic performance return circuit, can realize great magnetic force under less volume, have realized that the stroke is long, strength is big, and reaction rate is fast.

As shown in fig. 4, in the present embodiment, the fixed core 2 includes a first cylinder 2-2, and a disc 2-1 disposed at the top end of the first cylinder 2-2, the bottom end of the disc 2-1 is connected to the top end of the first cylinder 2-2, and the top end of the disc 2-1 is connected to the upper end of the first housing 9.

In this embodiment, during actual installation, the first cylinder 2-2 and the disc 2-1 are integrally formed, and the top end of the disc 2-1 is parallel to the upper end of the first housing 9; the disc 2-1 is provided with a threaded hole, and the disc 2-1 at the tail part of the fixed iron core 2 is in press fit with the first shell 9 and is fixed by adopting inner viscose and outer circumference laser welding.

In the embodiment, during actual installation, the fixed iron core 2 is inserted into the central hole of the coil frame 3, the fixed iron core 2 and the central hole of the coil frame 3 are in interference fit, a round cover 2-1 at the tail part of the fixed iron core 2 is in interference fit with a step hole of the first shell 9 and the connector 5, and a disc 2-1 at the tail part of the fixed iron core 2 and the outer edge of the tail part of the first shell 9 are in rolling fit, so that the coil frame 3, the movable iron core 2, the first shell 9 and the connector 5 are stably connected with high strength; an environment-friendly sealant 10 is filled between the fixed iron core 2 and the coil framework 3, an electromagnetic coil 8 wound on the coil framework 3 is led out from a leading-out hole on the disc 2-1 of the fixed iron core 2 through a high-temperature wire, and the leading-out hole is filled with the environment-friendly sealant 10.

As shown in fig. 3, in this embodiment, during actual installation, the coil frame 3 includes a frame column, an upper frame plate disposed at the top end of the frame column, and a lower frame plate disposed at the bottom end of the frame column, and the upper frame plate is provided with a through hole for a wire to pass through.

As shown in fig. 5, in this embodiment, the movable iron core 4 includes a second cylinder 4-1, a circular truncated cone 4-2 disposed at a lower end of the second cylinder 4-1, and a third cylinder 4-3 disposed at a lower end of the circular truncated cone 4-2, a top end of the circular truncated cone 4-2 is connected to the second cylinder 4-1, a bottom end of the circular truncated cone 4-2 is connected to a top end of the third cylinder 4-3, a bottom end of the third cylinder 4-3 is provided with an outer edge 4-4, and a diameter of the outer edge 4-4 is greater than a diameter of the third cylinder 4-3; the bottom end of the second cylinder 4-1 is provided with a mounting hole 6, and the mounting hole 6 penetrates through the circular truncated cone 4-2 and the third cylinder 4-3.

In the embodiment, during actual installation, the second cylinder 4-1, the second circular truncated cone 4-2, the third cylinder 4-3 and the outer edge 4-4 are integrally formed; the first shell 9 and the connector 5 are arranged in a step shape, and the first shell 9 and the connector 5 are integrally formed; the spring 7 is sleeved on the second cylinder 4-1, the second round table 4-2 and the third cylinder 4-3; the mounting hole 6 is the screw hole, and the fixed iron core 2 directly sets up in coil skeleton 3, moves iron core 4 sliding connection in coil skeleton 3, and under the same condition of performance, the electro-magnet volume reduces.

As shown in fig. 1 and fig. 2, in this embodiment, a cross section of the connector 5 is a circular ring, the first housing 9 and the connector 5 are arranged in a step shape, the spring 7 is in a tower shape, the spring 7 is arranged in the connector 5, the spring 7 is sleeved on the second cylinder 4-1, the second circular table 4-2 and the third cylinder 4-3, and the spring 7 is movably connected to the second cylinder 4-1, the second circular table 4-2 and the third cylinder 4-3; a lead wire 1 is arranged on the first shell 9, and one end of the lead wire 1 penetrates through the top end of the disc 2-1 to be connected with the electromagnetic coil 8.

As shown in fig. 6, in the present embodiment, a sealant 10 is disposed in the bobbin 3, and the sealant 10 is located at a gap between the bobbin 3 and the fixed core 2.

In this embodiment, during actual installation, the sealant 10 is nuwan TEC7 environment-friendly sealant; the sealant 10 is filled between the input coil bobbin 3 and the fixed iron core 2 through injection.

When the utility model is used in detail, when the lead 1 supplies power to the electromagnetic coil 8, the electromagnetic coil 8 generates electromagnetic force, the fixed iron core 2 and the movable iron core 4 are magnetized to generate attraction, the movable iron core 4 overcomes the force of the spring 7 to be attracted with the fixed iron core 2, when the power is cut off, the electromagnetic force of the electromagnetic coil 8 disappears, and the spring 7 presses down the movable iron core 4; the movable iron core 4 is reciprocated by switching on and off the electromagnetic force and the reaction force of the spring 7.

The utility model is provided with the environment-friendly sealant 10, and the gap between the given iron core 2 and the coil framework 3 is filled with the environment-friendly sealant 10, so that the fixed iron core 2 is conveniently fixed in the coil framework 3, and the phenomenon that the fixed iron core 2 is unstable due to the magnetic influence of the movable iron core 4 after the fixed iron core 2 is electrified and the movable iron core 4 slides in the coil framework 3 is further influenced is avoided; the disc 2-1 part on the fixed iron core 2 is connected with the first shell 9 by rolling or laser welding, and the wire outlet hole is protected by sealant 10, so that the product has better protection; through will moving 2 direct imbeds coil skeleton 3 of iron core, move iron core 2 and slide in coil skeleton 3, coiling solenoid 8 on the coil skeleton 3, first casing 9 and connector 5 adopt magnetic material car to make the cask form, directly set up in solenoid 8 outsidely, have reduced the magnetic gap, and suction is stronger under the same wire winding space for the solenoid valve volume further reduces, does benefit to integrated installation and miniaturization.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims

1. The novel cylindrical electromagnet is characterized by comprising a first shell (9), wherein the lower end of the first shell (9) is provided with a connector (5), the diameter of the connector (5) is smaller than that of the first shell (9), a coil assembly is arranged inside the first shell (9), the coil assembly comprises a coil framework (3), the coil framework (3) is a hollow circle, an electromagnetic coil (8) is wound on the coil framework (3), a fixed iron core (2) and a movable iron core (4) are arranged inside the coil framework (3), the fixed iron core (2) is fixed at the upper end of the first shell (9), the movable iron core (4) is arranged below the fixed iron core (2), the movable iron core (4) is in sliding connection with the coil framework (3), the lower end of the movable iron core (4) is provided with a spring (7), and the upper end of the spring (7) is connected with the first shell (9), the lower end of the spring (7) is connected with the movable iron core (4).

2. The novel cylindrical electromagnet of claim 1, wherein: the fixed iron core (2) comprises a first cylinder (2-2) and a disc (2-1) arranged at the top end of the first cylinder (2-2).

3. The novel cylindrical electromagnet of claim 1, wherein: the movable iron core (4) comprises a second cylinder (4-1), a circular truncated cone (4-2) arranged at the bottom end of the second cylinder (4-1) and a third cylinder (4-3) arranged at the bottom end of the circular truncated cone (4-2), and an outer edge (4-4) is arranged at the bottom end of the third cylinder (4-3); and a mounting hole (6) is formed in the lower end of the movable iron core (4).

4. The novel cylindrical electromagnet of claim 1, wherein: the connector (5) is a circular ring, and the outer diameter of the connector (5) is smaller than that of the first shell.

5. A novel cylindrical electromagnet according to claim 1 or 3 wherein: the spring (7) is in a tower shape and matched with the second cylinder (4-1), the circular truncated cone (4-2) and the third cylinder (4-3), and the spring (7) is wound on the outer sides of the circular truncated cone (4-2) and the third cylinder (4-3).

6. A novel cylindrical electromagnet according to claim 1 or 2, characterized in that: a lead (1) is arranged on the first shell (9), and one end of the lead (1) penetrates through the top end of the disc (2-1) to be connected with the electromagnetic coil (8).

7. A novel cylindrical electromagnet according to claim 1 or 2, characterized in that: and a gap is reserved between the coil framework (3) and the fixed iron core (2), and the gap is filled with sealant.