CN219734059U - Electromagnet for controlling on-off of liquid - Google Patents

Abstract

The utility model discloses an electromagnet for controlling on-off of liquid, which belongs to the field of electromagnets, and the electromagnet for controlling liquid circulation comprises a yoke seat, wherein an electromagnetic coil is arranged in the yoke seat; the electromagnetic coil is arranged in the electromagnetic coil, and is connected with the electromagnetic coil through a wire; the device also comprises a static iron core, wherein the static iron core is arranged at one end of the yoke seat, and a mounting hole is formed in the static iron core; the movable iron core comprises a magnetic attraction part capable of being attracted by the static iron core and an adjusting part fixedly connected with the magnetic attraction part, and a throttling plug used for preventing liquid from flowing is arranged at the end part of the adjusting part. According to the electromagnet for controlling liquid circulation, the movable iron core is arranged on the electromagnet, and the movable iron core moves to block or open a liquid flowing passage in the power failure process of the electromagnet, so that the on-off control of liquid is realized.

Description

Electromagnet for controlling on-off of liquid

Technical Field

The utility model relates to the field of electromagnets, in particular to an electromagnet for controlling on-off of liquid.

Background

The electromagnet is used in aspects of life of people, such as being applied to liquid valves for controlling liquid circulation, particularly an oil damper used for automobile damping and used in a chassis and a suspension of a vehicle, and the oil damper is used for absorbing vibration generated by the chassis and the suspension by controlling the oil circulation in an oil tank.

In the prior art, for example, an electromagnet disclosed in chinese patent publication No. CN202120737389.3 includes: the magnetic cover, the coil component, the armature, the magnetic gasket and the push rod; the magnetic cover comprises a first through cavity along a first direction, one end of the magnetic cover is bent towards the inside to form a bending section, and an assembly gap is formed between the bending section and the inner wall of the magnetic cover; one end of the coil component is arranged in the assembly gap and fixed with the magnetic cover, the other end of the coil component is close to one end of the first inner cavity, which is far away from the assembly gap, and the coil component is provided with a second inner cavity which is communicated in a first direction; the armature is arranged in the second inner cavity; the magnetic gasket is provided with a through hole penetrating along the first direction; the other end of the push rod passes through the through hole and extends out of the magnetic gasket, and in the using process of the electromagnet, the movable iron core or the movable iron core part cannot completely block a throttling port through which liquid flows, so that the effect of well controlling the on-off of the liquid cannot be achieved.

Disclosure of Invention

The utility model provides an electromagnet, which aims to control the on-off of liquid through the electromagnet.

In order to achieve the above purpose, the present utility model adopts the following scheme:

the utility model provides an electromagnet for controlling on-off of liquid, which comprises the following components: the yoke seat is internally provided with an electromagnetic coil; the electromagnetic coil is arranged on the yoke seat, and the electromagnetic coil is connected with the yoke seat through a wire; the device also comprises a static iron core, wherein the static iron core is arranged at one end of the yoke seat, and a mounting hole is formed in the static iron core; the movable iron core can move in the cavity formed by the mounting hole, the movable iron core comprises a magnetic attraction part capable of being attracted by the static iron core and an adjusting part fixedly connected with the magnetic attraction part, a throttling plug used for preventing liquid from flowing is arranged at the end part of the adjusting part, and soft materials are selected for the throttling plug, so that slight deformation can be generated when the throttling plug plugs the throttling port.

Optionally, the magnetic attraction part is made of metal capable of being attracted by magnetic attraction; the material for manufacturing the adjusting part is polyoxymethylene resin; the throttle plug is made of fluororubber.

Optionally, the magnetic part is of a cylindrical structure with one end sealed, and the inner wall surface of the magnetic part is provided with a plurality of first depressions; the part of the adjusting part is positioned in the magnetic attraction part, and a first protrusion matched with the first recess is arranged on the surface of the adjusting part in the magnetic attraction part.

Optionally, the throttle plug is located at the center of the end face of the connecting block; the adjusting part comprises a connecting block which is used for being connected with the magnetic attraction part, and a grinding wheel over-travel groove is reserved between the connecting block and the magnetic attraction part.

Optionally, a part of the throttle plug is located in the connecting block, and a plurality of second protrusions are arranged on the surface of the throttle plug located in the connecting block; the connecting block inner wall surface is provided with a plurality of second sunken with second protruding looks adaptation.

Optionally, the surface of the throttle plug is an arc-shaped surface.

Optionally, the adjusting part further includes: the baffle is located between the connecting block and the throttle plug, and the baffle is arranged on the connecting block in a protruding mode.

Optionally, the outer wall surface of the magnetic attraction part is provided with a plurality of liquid passing grooves along the length direction of the magnetic attraction part.

Optionally, the surface of the baffle is provided with a plurality of liquid passing ports, and the positions of the liquid passing ports on the baffle correspond to the positions of the liquid passing grooves on the surface of the magnetic attraction part.

Optionally, a chamfer is arranged between the end face of the magnetic attraction part and the side face of the magnetic attraction part, wherein the end face of the magnetic attraction part contacts with the static iron core when the static iron core is electrified.

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

1. compared with the prior art, the movable iron core is arranged on the electromagnet, and the movable iron core blocks or opens a liquid flowing passage through movement in the power failure process of the electromagnet, so that the on-off control of the liquid is realized, and the movable iron core is applied to the control of the oil flow in an automobile shock absorber and the like;

2. the movable iron core comprises a magnetic attraction part attracted by the static iron core and an adjusting part, the end part of the adjusting part is provided with a throttle plug, the throttle plug can block a throttle orifice through which liquid flows in the moving process of the movable iron core, so that the liquid flow is blocked, the throttle plug is made of soft fluororubber, when the throttle orifice is blocked, the throttle plug is made of soft material, when the throttle plug blocks the throttle orifice, the throttle plug can slightly deform, so that the throttle plug can completely block the throttle orifice, and the effect of blocking the liquid flow is improved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic diagram of the overall structure of an electromagnet for controlling on-off of a liquid according to an embodiment of the present utility model.

Fig. 2 is an exploded view of an electromagnet for controlling on-off of a liquid according to an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of a movable iron core in an electromagnet for controlling on-off of liquid according to an embodiment of the present utility model.

Fig. 4 is a right side view of a movable iron core in an electromagnet for controlling on-off of liquid according to an embodiment of the present utility model.

Fig. 5 is a front view of a movable iron core in an electromagnet for controlling on-off of liquid according to an embodiment of the present utility model.

Fig. 6 is a cross-sectional view taken along the direction A-A in fig. 5.

Fig. 7 is a cross-sectional view of a magnetic attraction part in A-A direction in an electromagnet for controlling on-off of liquid according to an embodiment of the present utility model.

Fig. 8 is a cross-sectional view of a connecting block in A-A direction in an electromagnet for controlling on-off of liquid according to an embodiment of the present utility model.

Fig. 9 is a cross-sectional view of a throttle plug in an electromagnet for controlling on-off of liquid in A-A direction according to an embodiment of the present utility model.

Fig. 10 is a schematic working diagram of an electromagnet for controlling on-off of a liquid according to an embodiment of the present utility model when an electromagnetic coil is in an unpowered state.

Fig. 11 is a schematic working diagram of an electromagnet for controlling on-off of liquid according to an embodiment of the present utility model when an electromagnetic coil is in a power-on state.

Fig. 12 is a sectional view in the direction B-B of fig. 10.

Fig. 13 is a sectional view in the direction C-C of fig. 11.

Description of main reference numerals:

1. a yoke seat; 2. sealing the fixing seat; 3. a stationary core; 31. a mounting hole; 4. a movable iron core; 41. a magnetic attraction part; 411. a first recess; 412. a liquid passing groove; 413. chamfering; 42. an adjusting section; 421. a connecting block; 4211. a first protrusion; 4212. a second recess; 422. a grinding wheel over-travel groove; 423. a throttle plug; 4231. a second protrusion; 424. a baffle; 4241. a liquid passing port; 5. a shock absorbing oil tank wall; 51. a choke.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

Examples

Referring to the drawings in the specification, as shown in fig. 1-13, the electromagnet for controlling the on-off of liquid provided by the utility model comprises a yoke seat 1, wherein an electromagnetic coil is arranged in the yoke seat 1, and after the electromagnetic coil is powered on, the electromagnetic coil generates a magnetic field. Still include sealed fixing base 2, sealed fixing base 2 sets up in yoke seat 1's one end. Taking fig. 1 as an example, the sealing fixing seat 2 is arranged at the left end of the yoke seat 1, an energizing lead connected with the electromagnetic coil is arranged in the sealing fixing seat 2, the energizing lead is connected with an external power supply, the external power supply can be an automobile storage battery, and the automobile storage battery transmits current to the electromagnetic coil through the energizing lead, so that the electromagnetic coil is electrified or deenergized. Still include quiet iron core 3, quiet iron core 3 sets up in the one end of yoke seat 1, is provided with mounting hole 31 on quiet iron core 3, as shown in fig. 2, the extending direction of mounting hole 31 is to the inside extension of yoke seat 1. The electromagnetic coil is powered on, and the static iron core 32 attracts the magnetic attraction part 41, as shown in fig. 3, the magnetic attraction part 41 can be a cylindrical body, and particularly can be a cylinder. It should be noted that the magnetic attraction portion 41 and the static iron core 32 are not magnetic, but the static iron core 32 is magnetic after being electrified by the electromagnetic coil, so as to attract the magnetic attraction portion 41, and the adjusting portion 42 is fixedly connected to the magnetic attraction portion 41, as shown in fig. 3, the adjusting portion 42 is located at the right end of the magnetic attraction portion 41. The adjustment portion 42 prevents the flow of oil when the solenoid is in the unpowered state. Specifically, since the adjusting portion 42 is not directly connected to the static iron core 32, the end portion of the adjusting portion 42 is provided with a throttle plug 423 for preventing the liquid from flowing, and the throttle plug 423 is made of soft material, so that when the throttle plug 423 blocks the throttle orifice 51, the throttle plug 423 can generate slight deformation, and the slight deformation refers to deformation caused by the throttle plug 423 contacting and subsequently pressing the edge of the throttle orifice 51 when the throttle plug 423 blocks the throttle orifice 51.

Specifically, through setting up movable iron core 4 on the electro-magnet, thereby the in-process that the electro-magnet obtained the power failure, movable iron core 4 blocks or opens the passageway that liquid flows through the motion, realize the control to liquid break-make, for example the electro-magnet is applied to in the control of the fluid flow in the automobile shock absorber, when the road surface is steady, does not need to carry out the shock attenuation, the solenoid in the electro-magnet does not get the electricity this moment, the quiet iron core 3 in the electro-magnet does not have magnetism, the throttle mouth 51 on the shock attenuation tank wall 5 is blocked to movable iron core 4 this moment, prevent the outside fluid of shock attenuation tank 5 to get into in the shock attenuation tank. When the vehicle runs on the road surface to generate jolt, as shown in fig. 2 and 10, the sensor can be used for transmitting the detected road surface condition and running working condition data to the electronic controller ECU, the electronic controller ECU transmits an instruction to the electromagnet, the electromagnetic coil is electrified at the moment, the static iron core 3 generates magnetism, and the static iron core 3 with magnetism attracts the movable iron core 4 to generate movement. For example, in fig. 10, the movable iron core 4 moves leftwards, at this moment, the movable iron core 4 is separated from the position of the choke 51, the choke 51 is opened, so that the oil outside the damping oil tank enters the damping oil tank through the choke 51, when the automobile is converted into a flat road surface from a bumpy road surface, the electromagnetic coil is deenergized, the static iron core 32 is demagnetized, the movable iron core 4 is reset under the action of the oil pushing, the choke 51 is plugged again, and the oil outside the damping oil tank is prevented from entering the damping oil tank through the choke 51, so that the whole damping and resetting processes of the automobile are completed. Therefore, the electromagnet provided by the utility model can realize the control of the oil flow in the automobile shock absorber, so that the shock absorption system can adapt to the situations of more types of automobile models and various pavements. In addition, the distance of the moving stroke of the movable iron core 4 needs to be limited, so that the movable iron core 4 is prevented from being separated from the electromagnet in the moving process, and the movable iron core 4 is free from the electromagnet, and the specific limiting distance and the size of the electromagnet can be determined according to practical situations. The movable core 4 includes a magnetic attraction portion 41 attracted by the stationary core 3 and an adjustment portion 42, and can be made by combining the respective portions at the time of producing the movable core 4, so that it is possible to perform processing using a plurality of materials.

In the present embodiment, the material of the magnetic attraction portion 41 is a metal that can be attracted by magnetic attraction, such as iron, cobalt, nickel. The material of which the regulating portion 42 is made is polyoxymethylene resin (POM). The material of which the throttle plug 423 is made is Fluororubber (FKM).

In the present embodiment, in order to achieve tight connection between the adjusting portion 42 and the magnetic portion 41, the magnetic portion 41 has a cylindrical structure with one end sealed. As shown in fig. 6 and 7, the left end of the magnetic part 41 is sealed, and the inner wall surface of the magnetic part 41 is provided with a plurality of first recesses 411, and the plurality of first recesses 411 may be unevenly distributed or may be evenly distributed as shown in fig. 6 and 7. The adjusting part 42 is partially located in the magnetic attraction part 41, and a first protrusion 4211 matched with the first recess 411 is arranged on the surface of the adjusting part 42 located in the magnetic attraction part 41, as shown in fig. 6-8, the first recess 411 is matched with the first protrusion 4211, so that tight connection between the adjusting part 42 and the magnetic attraction part 41 is realized, and separation between the adjusting part 42 and the magnetic attraction part 41 is avoided. Specifically, the magnetic attraction portion 41 may be machined in production, and then the adjustment portion 42 may be connected to the first recess 411 and the first protrusion 4211 by injection molding.

In the present embodiment, the throttle plug 423 is located at the center of the end face of the connection block 421. The adjusting portion 42 includes a connection block 421 for connecting with the magnetic portion 41, and a grinding wheel overrun groove 422 is provided between the connection block 421 and the magnetic portion 41.

In the present embodiment, in order to achieve tight connection between the throttle plug 423 and the connection block 421, a portion of the throttle plug 423 is located in the connection block 421, and a surface of the throttle plug 423 located in the connection block 421 is provided with a plurality of second protrusions 4231. The inner wall surface of the connection block 421 is provided with a plurality of second recesses 4212 adapted to the second protrusions 4231, and the plurality of second protrusions 4231 may be unevenly distributed or uniformly distributed as shown in fig. 8 and 9. Specifically, the throttle plug 423 may be manufactured by injection molding during production.

In this embodiment, the surface of the throttle plug 423 is an arcuate surface, and the arcuate surface may provide a smoother transition of the throttle plug 423 when it is plugged and when it is away from the throttle orifice 51.

In this embodiment, in order to delay the movement speed of the movable iron core 4 during movement, the adjusting portion 42 further includes a baffle 424, the baffle 424 is located between the connection block 421 and the throttle plug 423, the baffle 424 is disposed protruding from the connection block 421, as shown in fig. 5 and 10, when the movable iron core 4 is attracted by the static iron core 3 to generate leftward movement, the left end face of the baffle 424 is acted by the liquid to generate rightward thrust, so as to delay the movement speed of the movable iron core 4 during leftward movement. Similarly, when the movable iron core 4 is in the rightward reset motion, the right end face of the baffle 424 is acted by the liquid to generate leftward thrust, so as to delay the motion speed of the movable iron core 4 in the rightward reset motion.

In this embodiment, the outer wall surface of the magnetic attraction portion 41 is provided with a plurality of liquid passing grooves 412 along the length direction of the magnetic attraction portion 41, when the static iron core 3 attracts the movable iron core 4 to move, the liquid between the static iron core 3 and the movable iron core 4 in the mounting hole 31 can be discharged from the through holes 31 through the liquid passing grooves 412, so that the situation that the pressure is accumulated continuously because the liquid cannot be discharged from the mounting hole 31 in the process of moving the movable iron core 4 to the static iron core 32 is avoided, and the movable iron core 4 cannot be attracted by the static iron core 3 is affected.

In this embodiment, the surface of the baffle 424 is provided with a plurality of liquid passing ports 4241, the position of the liquid passing ports 4241 on the baffle 424 corresponds to the position of the liquid passing groove 412 on the surface of the magnetic attraction portion 41, and the position of the liquid passing ports 4241 corresponds to the position of the liquid passing groove 412, so that the liquid flowing out from the liquid passing groove 412 passes through the liquid passing ports 4241 faster.

In the present embodiment, a chamfer 413 is provided between the end surface of the magnetic attraction portion 41 that contacts the stationary core 3 when energized and the side surface of the magnetic attraction portion 41.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (10)

1. An electromagnet for controlling the on-off of a liquid, comprising:

a yoke seat (1), wherein an electromagnetic coil is arranged in the yoke seat (1);

the sealing fixing seat (2) is arranged at one end of the yoke seat (1), and an energizing lead connected with the electromagnetic coil is arranged in the sealing fixing seat (2);

the static iron core (3), the static iron core (3) is arranged at one end of the yoke seat (1), and the static iron core (3) is provided with a mounting hole (31);

the movable iron core (4), movable iron core (4) can be in mounting hole (31) forms the intracavity motion, movable iron core (4) include can by magnetic attraction portion (41) of quiet iron core (3) attraction and with regulation portion (42) of magnetic attraction portion (41) fixed connection, regulation portion (42) tip is provided with throttle plug (423) that are used for stopping the liquid circulation, soft material is selected for use to throttle plug (423), so that can produce slight deformation when throttle plug (423) blocks up throttle orifice (51).

2. An electromagnet for controlling the on-off of a liquid according to claim 1, wherein:

the material of the magnetic attraction part (41) is metal which can be attracted by magnetic attraction;

the material of the adjusting part (42) is polyoxymethylene resin;

the throttle plug (423) is made of fluororubber.

3. An electromagnet for controlling the on-off of a liquid according to claim 1, wherein:

the magnetic part (41) is of a cylindrical structure with one end sealed, and a plurality of first depressions (411) are formed in the inner wall surface of the magnetic part (41);

the part of the adjusting part (42) is positioned in the magnetic part (41), and a first protrusion (4211) matched with the first recess (411) is arranged on the surface of the adjusting part (42) positioned in the magnetic part (41).

4. An electromagnet for controlling the on-off of a liquid according to claim 3, wherein:

the adjusting part (42) comprises a connecting block (421) which is used for being connected with the magnetic attraction part (41), and a grinding wheel over-travel groove (422) is reserved between the connecting block (421) and the magnetic attraction part (41);

the throttle plug (423) is positioned in the center of the end face of the connecting block (421).

5. An electromagnet for controlling the on-off of a liquid according to claim 4, wherein:

part of the throttle plug (423) is positioned in the connecting block (421), and a plurality of second bulges (4231) are arranged on the surface of the throttle plug (423) positioned in the connecting block (421);

the inner wall surface of the connecting block (421) is provided with a plurality of second depressions (4212) which are matched with the second protrusions (4231).

6. An electromagnet for controlling the on-off of a liquid according to claim 4, wherein:

the surface of the throttle plug (423) is an arc-shaped surface.

7. An electromagnet for controlling the on-off of a liquid according to claim 4, wherein said adjusting portion (42) further comprises:

the baffle (424), baffle (424) are located connecting block (421) with between throttle plug (423), baffle (424) protruding set up in connecting block (421).

8. An electromagnet for controlling the on-off of a liquid according to claim 7, wherein:

the outer wall surface of the magnetic part (41) is provided with a plurality of liquid passing grooves (412) along the length direction of the magnetic part (41).

9. An electromagnet for controlling the on-off of a liquid according to claim 8, wherein:

the surface of the baffle plate (424) is provided with a plurality of liquid passing ports (4241), and the position of the liquid passing ports (4241) on the baffle plate (424) corresponds to the position of the liquid passing groove (412) on the surface of the magnetic attraction part (41).

10. An electromagnet for controlling the on-off of a liquid according to claim 2, wherein:

and a chamfer is arranged between the end surface of the magnetic attraction part (41) contacted with the static iron core (3) and the side surface of the magnetic attraction part (41) when the static iron core is electrified.