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CN-224229384-U - Electromagnetic valve

CN224229384UCN 224229384 UCN224229384 UCN 224229384UCN-224229384-U

Abstract

The utility model provides an electromagnetic valve, which belongs to the technical field of thermal management and comprises a first magnetizer, a movable iron core and a sleeve, wherein at least part of the movable iron core is positioned in the sleeve, the first magnetizer is in abutting connection or fixed connection with the sleeve, and the first magnetizer is arranged adjacent to the movable iron core along the radial direction of the sleeve. The air gap between the first magnetizer and the movable iron core is reduced, so that the intensity of the magnetic field received by the movable iron core is improved.

Inventors

  • Request for anonymity
  • Request for anonymity

Assignees

  • 浙江三花汽车零部件有限公司

Dates

Publication Date
20260512
Application Date
20241129

Claims (13)

  1. 1. The electromagnetic valve is characterized by comprising a first magnetizer (2), a movable iron core (4) and a sleeve (6), wherein at least part of the movable iron core (4) is positioned in the sleeve (6), and the first magnetizer (2) is in abutting connection or fixed connection with the sleeve (6); Along the radial direction of the sleeve (6), the first magnetizer (2) is arranged adjacent to the movable iron core (4).
  2. 2. A solenoid valve according to claim 1, characterised in that, in the radial direction of the sleeve (6), a portion of the first magnetic conductor (2) is located between the sleeve (6) and the moving core (4).
  3. 3. The solenoid valve according to claim 1, characterized in that it further comprises a second magnetic conductor (3) and a coil assembly (1), said second magnetic conductor (3) having a first wall (31), said second magnetic conductor (3) having a mounting cavity (36), said first wall (31) defining a portion of the wall of said mounting cavity (36), said coil assembly (1) being located inside said mounting cavity (36), in the radial direction of said moving core (4), said first wall (31) being in abutment or clearance fit with said first magnetic conductor (2).
  4. 4. The electromagnetic valve according to claim 2, characterized in that the electromagnetic valve further comprises a second magnetic conductor (3), the second magnetic conductor (3) is provided with a first wall (31), the movable iron core (4) comprises a first shaft section (41), the sleeve (6) is in clearance fit with the first shaft section (41), the first magnetic conductor (2) comprises a magnetic conduction part (21) and a magnetic conduction part (22), the magnetic conduction part (21) is positioned on one side, close to the first wall (31), of the magnetic conduction part (22), the magnetic conduction part (21) is abutted or in clearance fit with the first wall (31), the magnetic conduction part (22) is positioned between the sleeve (6) and the movable iron core (4), and a first clearance (L1) is formed between the magnetic conduction part (22) and the movable iron core (4).
  5. 5. The solenoid valve according to claim 4, characterized in that said moving core (4) further comprises a second shaft section (42), said solenoid valve further comprising a valve seat (7), said valve seat (7) comprising a protrusion (71) and a first body (72), said valve seat (7) having a core receiving cavity (711), said protrusion (71) defining a wall of said core receiving cavity (711), said protrusion (71) and said first body (72) being juxtaposed along an axial direction of said valve seat (7), said first body (72) abutting said magnetic transfer portion (21); The protruding part (71) is positioned in the magnetism transmission part (21) along the radial direction of the movable iron core (4), and the protruding part (71) is in clearance fit with the second shaft section (42); A second gap (L2) is arranged between the protruding part (71) and the second shaft section (42), and the first gap (L1) is larger than or equal to the second gap (L2).
  6. 6. The solenoid valve according to claim 5, characterized in that the valve seat (7) further has a piston mounting chamber (73), the first body (72) defining a wall portion of the piston mounting chamber (73), the solenoid valve further comprising a piston (75) and a sealing block (74) located within the piston mounting chamber (73), an outer peripheral surface of the sealing block (74) being in sealing connection with an inner peripheral surface of the piston (75), the piston (75) outer peripheral surface being in sliding connection with the first body (72).
  7. 7. The solenoid valve according to claim 4, characterized in that the moving core (4) further comprises a second axial section (42), the first magnetic conductor (2) having a core receiving cavity (711), the magnetic conducting portion (22) defining a part of the wall of the core receiving cavity (711), the magnetic conducting portion (22) being in clearance fit with the second axial section (42).
  8. 8. The electromagnetic valve according to claim 7, characterized in that the first magnetizer (2) has a second main body (23), the first magnetizer (2) further has a piston mounting cavity (73), the second main body (23) defines a wall portion of the piston mounting cavity (73), the magnetic transfer portion (21), the magnetic conduction portion (22) and the second main body (23) are juxtaposed along an axial direction of the first magnetizer (2), the electromagnetic valve further comprises a piston (75) and a sealing block (74) located in the piston mounting cavity (73), an outer peripheral surface of the sealing block (74) is in sealing connection with an inner peripheral surface of the piston (75), and an outer peripheral surface of the piston (75) is in sliding connection with the second main body (23).
  9. 9. The electromagnetic valve according to claim 6, characterized in that the sealing block (74) has a flow passage hole (741), an axis of the flow passage hole (741) coincides with an axis of the movable iron core (4), an end surface of the movable iron core (4) near the piston (75) has a tapered portion (46), a diameter of an end of the tapered portion (46) near the movable iron core (4) is larger than a diameter of an end of the tapered portion (46) away from the movable iron core (4), and a diameter of an end of the tapered portion (46) away from the movable iron core (4) is smaller than an aperture of the flow passage hole (741) near the end of the tapered portion (46).
  10. 10. The electromagnetic valve according to claim 8, characterized in that the first magnetizer (2) has a second main body (23), the first magnetizer (2) further has a piston mounting cavity (73), the second main body (23) defines a wall portion of the piston mounting cavity (73), the magnetically conductive portion (21), the magnetically conductive portion (22) and the second main body (23) are juxtaposed in an axial direction of the first magnetizer (2), the electromagnetic valve further comprises a piston (75) and a sealing block (74) in the piston mounting cavity (73), an outer circumferential surface of the sealing block (74) is in sealing connection with an inner circumferential surface of the piston (75), the outer circumferential surface of the piston (75) is in sliding connection with the second main body (23), the sealing block (74) has a flow passage hole (741), an axis of the flow passage hole (741) coincides with an axis of the moving core (4), an end surface of the moving core (4) near the piston (75) has a tapered portion (46), the outer circumferential surface of the sealing block (74) is in sliding connection with an inner circumferential surface of the piston (75) near the tapered portion (46) near the large diameter of the moving core (4), and the diameter of one end of the conical part (46) far away from the movable iron core (4) is smaller than the aperture of one end of the runner hole (741) near the conical part (46).
  11. 11. The electromagnetic valve according to any one of claims 1 to 4, further comprising a housing (8), a coil assembly (1), a second magnetizer (3), a static iron core (5) and an iron core spring (9), wherein the housing (8) is fixedly connected to the outside of the coil assembly (1), the housing (8) is located in an accommodating space defined by the second magnetizer (3), the housing (8) is fixedly connected with the second magnetizer (3), the sleeve (6) is located inside the coil assembly (1), the static iron core (5) is located inside the sleeve (6) and is in limiting connection with the sleeve (6), the static iron core (5) is fixedly connected with the second magnetizer (3), one end of the iron core spring (9) is abutted to the static iron core (5), and the other end of the iron core spring is abutted to the movable iron core (4).
  12. 12. The solenoid valve according to any one of claims 5 to 8, characterized in that said second shaft section (42) has a spring receiving chamber (411), said plunger (4) further comprises a first channel (43), a second channel (44) and a third channel (45), said first channel (43) being open to said first shaft section (41) and said first shaft section (41) being in communication with said spring receiving chamber (411), said second channel (44) being open to said second shaft section (42), an axis of said second channel (44) being perpendicular to an axis of said first channel (43), and said second channel (44) being in communication with said first channel (43), said second channel (44) extending through said second shaft section (42) in a radial direction of said second shaft section (42), said third channel (45) being in communication with said second channel (44).
  13. 13. The solenoid valve according to any one of claims 8 to 10, characterized in that it has an inlet (P1), a valve port (P2) and an outlet (P3), said inlet (P1) being located upstream of said valve port (P2), said outlet (P3) being located downstream of said valve port (P2), said inlet (P1) being in communication with said piston mounting chamber (73), said valve port (P2) being in communication with said outlet (P3), said solenoid valve being configured to selectively place said valve port (P2) in an open or closed condition.

Description

Electromagnetic valve Technical Field The utility model relates to the technical field of thermal management, in particular to an electromagnetic valve for a vehicle or energy storage. Background The main components of the electromagnetic valve are a coil, an actuating mechanism and a sleeve, the coil plays a role of electrifying and generating magnetism, the sleeve is positioned at the inner side of the coil, the actuating mechanism is positioned at the inner side of the coil, and the sleeve can prevent fluid from entering the coil so as to protect the coil. The actuating mechanism comprises a static iron core and a movable iron core, the two iron cores are magnetized under the action of a magnetic field, and the movable iron core and the static iron core are attracted with each other. In order to increase the magnetic flux of the iron core, the electromagnetic valve is also provided with a magnetizer, a sleeve is arranged between the magnetizer and the movable iron core, and a gap between the magnetizer and the iron core is larger, so that the electromagnetic force loss is larger. Disclosure of utility model The utility model aims to provide a solenoid valve which is beneficial to reducing an air gap, reducing magnetic resistance and increasing the intensity of a magnetic field received by an iron core. In order to achieve the above purpose, the utility model adopts the following technical scheme: The technical scheme of the utility model provides an electromagnetic valve, which comprises a first magnetizer, a movable iron core and a sleeve, wherein at least part of the movable iron core is positioned in the sleeve, the first magnetizer is in abutting connection or fixed connection with the sleeve, and the first magnetizer is adjacent to the movable iron core along the radial direction of the sleeve. The electromagnetic valve provided by the technical scheme of the utility model has the beneficial effects that as the first magnetizer is arranged adjacent to the movable iron core, namely, a structure for blocking magnetic transmission between the movable iron core and the first magnetizer is not arranged between the movable iron core and the first magnetizer, compared with the structure in the prior art that the sleeve is positioned between the movable iron core and the magnetizer, the technical scheme of the utility model reduces the air gap between the first magnetizer and the movable iron core, and further reduces the magnetic loss conducted to the movable iron core by the first magnetizer. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic perspective view of an electromagnetic valve according to an embodiment of the present utility model; FIG. 2 is a schematic front perspective view of a solenoid valve according to one embodiment of the present utility model; FIG. 3 is a perspective exploded view of one of the solenoid valves shown in FIG. 1; FIG. 4 is a schematic cross-sectional view of the internal structure of one of the solenoid valves shown in FIG. 2 in the direction A-A; fig. 5 is an enlarged structural schematic view of the partial view B shown in fig. 4; FIG. 6 is a schematic view of another embodiment of a solenoid valve shown in FIG. 2 in the direction A-A; FIG. 7 is a schematic diagram of the magnetic circuit of one of the solenoid valves shown in FIG. 1; fig. 8 is a schematic view of the fluid flow path of one of the solenoid valves shown in fig. 1. 1. Coil component, 2, first magnetizer, 21, magnetic conduction part, 211, first wall surface, 22, magnetic conduction part, 221, second wall surface, 23, second main body, 3, second magnetizer, 31, first wall, 32, second wall, 33, third wall, 34, first assembly hole, 35, second assembly hole, 36, installation cavity, 4, movable iron core, 41, first shaft section, 411, spring accommodation cavity, 42, second shaft section, 43, first channel, 44, second channel, 45, third channel, 46, taper part, 5, static iron core, 6, sleeve, 7, valve seat, 71, protrusion, 711, iron core accommodation cavity, 72, first main body, 73, installation cavity of piston, 74, sealing block, 741, runner hole, 75, piston, 751, air pressure balance hole, 8, shell, 9, iron core spring, L1, first gap, L2, second gap, P1, inlet, P2, valve port, P3 and outlet. Detailed Description In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following embodiments are described in further detail with reference to the accompanying drawings. It should be understood that the specific