CN202495315U

CN202495315U - Self-holding electromagnet

Info

Publication number: CN202495315U
Application number: CN2012200285981U
Authority: CN
Inventors: 龙金禄; 龙奕霖
Original assignee: DONGGUAN WORLD ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: DONGGUAN WORLD ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2012-01-13
Filing date: 2012-01-13
Publication date: 2012-10-17
Anticipated expiration: 2022-01-13

Abstract

The utility model relates to the technical field of electromagnets and particularly relates to a self-holding electromagnet. The self-holding electromagnet comprises a bracket; a reel and a coil wound outside the reel are arranged in the bracket; a movable iron core is arranged in the reel in a sliding and penetrating manner; the lower end of the movable iron core is connected with a push rod; the lower end of the push rod extends outside the bracket; and a plurality of permanent magnets are arranged outside the reel. The permanent magnets can supply a self-holding force to the movable iron core, the movable iron core can be held in an assigned position by virtue of the permanent magnets without being affected by power-on/off after the movable iron core is upward or downward moved to the assigned position, and the coil is only powered on when the movable iron core is moved and powered off when the movable iron core is not moved during the working process of the self-holding electromagnet, so that the self-holding electromagnet has the advantages of power saving, stable performance and convenience in use.

Description

The self-sustaining electromagnet

Technical field:

The utility model relates to the electromagnet technical field, relates in particular to a kind of self-sustaining electromagnet that flat machine is used.

Background technology:

Computerized flat knitting machine is a kind of crosspointer plate latch needles weft knitting loom, needs to use electromagnet to select operations such as shuttle, needle selection on the Computerized flat knitting machine.Electromagnet of the prior art relies on Current Control fully, has both relied on moving of Current Control armature, also relies on electric current to make armature remain on appointed positions.But existing electromagnet does not generally possess self-retaining function, and moving up and down of iron core rung by the break-make film, and electromagnet need remain electric current in the course of the work, and power consumption is big.

The utility model content:

The purpose of the utility model is exactly the self-sustaining electromagnet that provides a kind of location with self-retaining function, iron core not rung by the break-make film to the deficiency of prior art existence.

To achieve these goals, the technical scheme of the utility model employing is:

The self-sustaining electromagnet includes support, is provided with bobbin in the support, is wrapped in the outside coil of bobbin, and sliding in the bobbin is equipped with movable core, and the lower end of movable core is connected with push rod, and the support outside is stretched out in the push rod lower end, and the outside of bobbin is provided with a plurality of permanent magnets.

The direction of winding of said coil is a clockwise direction, and the positive N utmost point of permanent magnet up.

The upper end cover of said support is provided with loam cake.

Said loam cake is connected with the support engaging.

The two ends up and down of said movable core convex with projection respectively, and the two ends up and down of support are respectively equipped with the annular secured core that supplies projection to pass.

The projection bottom of said movable core lower end offers blind hole, and the push rod top is connected with the blind hole tight fit.

The two ends up and down of said bobbin are respectively equipped with catch.

Said a plurality of permanent magnet is along circumferentially evenly being arranged on the bobbin outside.

The middle part outer surface of said bobbin is along being circumferentially with a plurality of container cavities, and permanent magnet is arranged in the container cavity.

Said container cavity is 2, and permanent magnet is 4, and 2 permanent magnets are set in each container cavity, is provided with blob of viscose between 2 permanent magnets in the container cavity.

The utility model beneficial effect is: the utility model includes support, is provided with bobbin in the support, is wrapped in the outside coil of bobbin, and sliding in the bobbin is equipped with movable core, and the lower end of movable core is connected with push rod; The support outside is stretched out in the push rod lower end, and the outside of bobbin is provided with a plurality of permanent magnets, and permanent magnet can be movable core self-sustaining power is provided; Movable core stamp or lay move to assigned address after, can rely on permanent magnet to remain on this assigned address, not rung by the break-make film; And in the course of the work, make coil electricity in the time of only need moving movable core, coil can cut off the power supply when not moving movable core; Save electric energy, stable performance, easy to use.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the cutaway view of the utility model.

Fig. 3 is the decomposing schematic representation that the utility model conceals coil.

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described, sees shown in Fig. 1～3 the self-sustaining electromagnet; Include support 1, vertically be provided with bobbin 2 in the support 1, be wrapped in the outside coil 3 of bobbin 2, the vertical slip is equipped with movable core 4 in the bobbin 2; The lower end of movable core 4 is connected with push rod 5; Support 1 outside is stretched out in push rod 5 lower ends, and support 1 upper end is not stretched out in the upper end of movable core 4, and the outside of bobbin 2 is provided with a plurality of permanent magnets 6.The direction of winding of coil 3 is a clockwise direction, and the positive N utmost point of permanent magnet 6 up.The mode of connection is 3 outlets, is respectively positive pole, negative pole and common port.

The upper end cover of support 1 is provided with loam cake 7, and loam cake 7 is connected with support 1 engaging, and is easy for installation.The two ends up and down of movable core 4 convex with projection 41 respectively, and the two ends up and down of support 1 are respectively equipped with the annular secured core 8 that supplies projection 41 to pass, and movable core 4 is played guiding and position-limiting action.Projection 41 bottoms of said movable core 4 lower ends offer blind hole 42, and push rod 5 tops are connected with blind hole 42 tight fits.Coil 3 is around secured core 8 and movable core 4, and after coil 3 energisings, movable core 4 produces magnetic with secured core 8 and attracts each other.

The two ends up and down of bobbin 2 are respectively equipped with catch 21, are convenient to winding around 3.A plurality of permanent magnets 6 make magnetic field even along circumferentially evenly being arranged on bobbin 2 outsides, and movable core 4 is stressed steady.The middle part outer surface of bobbin 2 is along being circumferentially with a plurality of container cavities 22, and the two ends up and down of bobbin 2 form two winding sections, and permanent magnet 6 is arranged in the container cavity 22, and is easy for installation.In the present embodiment, container cavity 22 is 2, and permanent magnet 6 is 4, and 2 permanent magnets 6 are set in each container cavity 22, is provided with blob of viscose 9 between 2 permanent magnets 6 in the container cavity 22, is used for 2 permanent magnets 6 are separated, and prevents contact between the permanent magnet 6.

The permanent magnet 6 of the utility model can be movable core 4 self-sustaining power is provided, movable core 4 stamp or lay move to assigned address after, can rely on permanent magnet 6 to remain on this assigned address; Not rung by the break-make film, and in the course of the work, make coil 3 energisings in the time of only need moving movable core 4; Coil 3 can cut off the power supply when not moving movable core 4; Save electric energy, stable performance, easy to use.

Certainly, the above only is the preferred embodiment of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.

Claims

1. self-sustaining electromagnet; Include support (1); Be provided with bobbin (2) in the support (1), be wrapped in the outside coil (3) of bobbin (2), it is characterized in that: sliding in the said bobbin (2) is equipped with movable core (4), and the lower end of movable core (4) is connected with push rod (5); Support (1) outside is stretched out in push rod (5) lower end, and the outside of bobbin (2) is provided with a plurality of permanent magnets (6).

2. self-sustaining electromagnet according to claim 1 is characterized in that: the direction of winding of said coil (3) is a clockwise direction, and the positive N utmost point of permanent magnet (6) up.

3. self-sustaining electromagnet according to claim 1 is characterized in that: the upper end cover of said support (1) is provided with loam cake (7).

4. self-sustaining electromagnet according to claim 3 is characterized in that: said loam cake (7) is connected with support (1) engaging.

5. self-sustaining electromagnet according to claim 1 is characterized in that: the two ends up and down of said movable core (4) convex with projection (41) respectively, and the two ends up and down of support (1) are respectively equipped with the annular secured core (8) that supplies projection (41) to pass.

6. self-sustaining electromagnet according to claim 5 is characterized in that: projection (41) bottom of said movable core (4) lower end offers blind hole (42), and push rod (5) top is connected with blind hole (42) tight fit.

7. self-sustaining electromagnet according to claim 1 is characterized in that: the two ends up and down of said bobbin (2) are respectively equipped with catch (21).

8. self-sustaining electromagnet according to claim 1 is characterized in that: said a plurality of permanent magnets (6) are along circumferentially evenly being arranged on bobbin (2) outside.

9. according to any described self-sustaining electromagnet of claim 1～8, it is characterized in that: the middle part outer surface of said bobbin (2) is along being circumferentially with a plurality of container cavities (22), and permanent magnet (6) is arranged in the container cavity (22).

10. self-sustaining electromagnet according to claim 9 is characterized in that: said container cavity (22) is 2, and permanent magnet (6) is 4, and 2 permanent magnets (6) are set in each container cavity (22), is provided with blob of viscose (9) between 2 permanent magnets (6) in the container cavity (22).