Vehicle-mounted electromagnetic valve coil

Abstract

The utility model discloses a kind of vehicle-mounted electromagnetic valve coils, including coil assembly shell, the inside of coil assembly shell is provided with coil assembly, the bottom end of coil assembly is provided with fixing piece, the top of coil assembly is provided with pin fixed plate, the pin of pin fixed plate is set inside interface module, the top of coil assembly shell is provided with top cover.The utility model first inserts the plug-in part of upper and lower two stator housings into the plug-in slot on the inner ring of coil roll, to realize preliminary fixation, then stator piece is inserted into the inside of inner ring, when stator piece is inserted into inner ring, stator piece extrudes extrusion block to inside, extrusion block can make L type sliding member move to inside, to make limiting piece insert into the limiting hole inside of plug-in piece, further realize two stator housings are fixed on coil roll, compared with traditional welding or clamping mode, the stability and disassembly convenience of this fixing mode are higher.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, and in particular to a vehicle-mounted electromagnetic valve coil. Background Technology

[0002] As a core actuator in automotive control systems, automotive solenoid valves are widely used in scenarios such as engine fuel injection, transmission shift logic adjustment, and braking system pressure control. They use electromagnetic force to drive the valve core to open and close rapidly, achieving precise on / off control or flow regulation of fluids such as fuel and hydraulic oil, directly affecting the vehicle's power response, fuel efficiency, and driving safety.

[0003] The solenoid valve coil is the core energy conversion component of electromagnetic drive. It generates a magnetic field through current excitation, which drives the valve core to complete mechanical actions. In automotive scenarios, the coil must also adapt to complex operating conditions such as voltage fluctuations and electromagnetic interference to ensure stable operation in 12V / 24V automotive power systems and avoid control failures caused by coil parameter drift.

[0004] Patent document CN201875250U discloses an electronic expansion valve coil connection structure, including upper and lower stator housings, the connecting surfaces of which are connected by matching dovetail grooves and dovetail bosses. This utility model has a simple structure, avoids electrochemical corrosion, and improves product quality and reliability.

[0005] As in the prior art of the aforementioned patent, the upper and lower stator housings are generally welded together using a spot welding process. The aforementioned patent uses a riveting method to connect them. However, although this connection method can ensure that the two upper and lower stator housings will not separate on the vertical plane, once the upper and lower stator housings are subjected to external forces on the horizontal plane or the mechanical vibrations that are unavoidable when the solenoid valve is working, the upper and lower stator components will separate and fall off on the horizontal plane, resulting in low stability. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide a vehicle-mounted solenoid valve coil to solve the above-mentioned shortcomings in the prior art.

[0007] Technical Solution: A vehicle-mounted solenoid valve coil includes a coil assembly housing. A coil assembly is disposed inside the coil assembly housing. A fixing member is disposed at the bottom end of the coil assembly. A pin fixing plate is disposed at the top end of the coil assembly. The pins of the pin fixing plate are disposed inside an interface module. A top cover is disposed at the top end of the coil assembly housing. The coil assembly includes a coil roller, a coil body wound around the outside of the coil roller, and two stator housings covering the outside of the coil roller. Connectors are arranged in a ring array on the inner side of the two stator housings. An inner ring is fixedly disposed on the inner wall of the coil roller. A stator component is inserted into the inner ring. Multiple insertion slots corresponding to the connectors are formed on the inner ring. The connectors of the upper and lower stator housings are respectively inserted into the insertion slots of the upper and lower inner rings. Limiting components are disposed inside the insertion slots.

[0008] As a further description of the above technical solution: the limiting component includes a limiting hole opened on the plug, an L-shaped groove is opened on the inner ring, and an L-shaped sliding member is arranged inside the L-shaped groove.

[0009] As a further description of the above technical solution: the top of the L-shaped groove is open on both sides, so that the L-shaped groove is connected to the insertion groove and the outside. A limiting member is provided on the top of the L-shaped sliding member near the insertion groove, and the limiting member is adapted to the limiting hole.

[0010] As a further description of the above technical solution: a pressing block is provided on the side of the top of the L-shaped slider away from the limiting member, and the sidewall of the pressing block is set as a wedge-shaped surface.

[0011] As a further description of the above technical solution: a spring is provided on the horizontal section of the L-shaped groove, and the spring is fixedly connected to the horizontal end of the L-shaped sliding member.

[0012] As a further description of the above technical solution: the side wall of the stator housing is provided with multiple heat dissipation holes and a wire through hole.

[0013] As a further description of the above technical solution: a heat dissipation groove is provided at the top of the stator housing, and a plurality of heat dissipation grooves are arranged in a ring array and staggered between a plurality of plug-in parts.

[0014] As a further description of the above technical solution: a sealing element is provided between the pin fixing plate and the top cover.

[0015] Beneficial effects: When it is necessary to connect the upper and lower stator shells together, first align the insertion parts of the two stator shells with the insertion slots on the inner ring of the coil roller and insert them to achieve initial fixation. Then, insert the stator component into the inner ring. When the stator component is inserted into the inner ring, it presses the pressing block inward. The pressing block causes the L-shaped sliding component to move inward, thereby allowing the limiting component to be inserted into the limiting hole of the insertion component, further fixing the two stator shells onto the coil roller. Compared with the traditional welding or snap-fit ​​method, this fixing method has higher stability and easier disassembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a vehicle-mounted solenoid valve coil proposed in this utility model;

[0017] Figure 2 This is a three-dimensional exploded structural diagram of the present invention;

[0018] Figure 3 This is a three-dimensional exploded view of the stator housing, coil roller, and stator components of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the stator housing, coil rollers, and stator components after installation according to this utility model;

[0020] Figure 5 This is a top view of the stator housing of this utility model.

[0021] Figure 6 This is a cross-sectional view of the coil roller of this utility model;

[0022] Figure 7 This utility model Figure 6 A magnified structural diagram at point A.

[0023] Legend:

[0024] 1. Coil assembly housing; 2. Interface module; 3. Fixing component; 4. Top cover; 5. Sealing component; 6. Pin fixing plate; 7. Stator housing; 8. Coil roller; 9. Heat dissipation hole; 10. Wire hole; 11. Stator component; 12. Heat dissipation groove; 13. Connector; 14. Limiting hole; 15. Inner ring; 16. Connecting groove; 17. Extrusion block; 18. Wedge-shaped surface; 19. Coil body; 20. Limiting component; 21. L-shaped groove; 22. L-shaped sliding component; 23. Spring. Detailed Implementation

[0025] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1-7A vehicle-mounted solenoid valve coil includes a coil assembly housing 1, inside which a coil assembly is disposed. A fixing member 3 is disposed at the bottom end of the coil assembly, and a pin fixing plate 6 is disposed at the top end of the coil assembly. The pins of the pin fixing plate 6 are disposed inside an interface module 2. A top cover 4 is disposed at the top end of the coil assembly housing 1. The coil assembly includes a coil roller 8, a coil body 19 wound around the outside of the coil roller 8, and two stator housings 7 covering the outside of the coil roller 8. Insertion members 13 are arranged in a ring array on the inner side of the two stator housings 7. An inner ring 15 is fixedly disposed on the inner wall of the coil roller 8, and a stator member 11 is inserted into the inner ring 15. Multiple insertion slots 16 corresponding to the insertion members 13 are formed on the inner ring 15. The upper and lower stators... The connectors 13 of the outer shell 7 are respectively inserted into the insertion slots 16 of the upper and lower inner rings 15. The insertion slots 16 are provided with limiting components. When it is necessary to connect the upper and lower stator outer shells 7 together, the insertion parts of the upper and lower stator outer shells 7 are first aligned with the insertion slots 16 on the inner ring 15 of the coil roller 8 and inserted to achieve initial fixation. Then, the stator component 11 is inserted into the inner ring 15. When the stator component 11 is inserted into the inner ring 15, the stator component 11 presses the pressing block 17 inward. The pressing block 17 can make the L-shaped sliding component 22 move inward, so that the limiting component 20 is inserted into the limiting hole 14 of the connector 13, further fixing the two stator outer shells 7 on the coil roller 8. Compared with the traditional welding or snap-fit ​​method, this fixing method has higher stability and easier disassembly.

[0027] As a preferred technical solution of this embodiment, the limiting component includes a limiting hole 14 opened on the plug 13, an L-shaped groove 21 opened on the inner ring 15, and an L-shaped sliding member 22 is provided inside the L-shaped groove 21; the L-shaped sliding member 22 can slide inside the L-shaped groove.

[0028] As a preferred technical solution in this embodiment, the top two sides of the L-shaped groove 21 are open, so that the L-shaped groove 21 and the insertion groove 16 are connected to the outside. The top of the L-shaped sliding member 22 is provided with a limiting member 20 on the side near the insertion groove 16. The limiting member 20 is adapted to the limiting hole 14. The limiting member 20 can be inserted into the interior of the limiting hole 14, thereby fixing and limiting the insertion member 13.

[0029] As a preferred technical solution of this embodiment, a pressing block 17 is provided on the side of the L-shaped sliding member 22 away from the limiting member 20, and the side wall of the pressing block 17 is set as a wedge-shaped surface 18; the wedge-shaped surface 18 can facilitate the pressing of the pressing block 17 when the stator is inserted downward, so that it can slide stably inward.

[0030] As a preferred technical solution of this embodiment, a spring 23 is provided on the horizontal section of the L-shaped groove 21, and the spring 23 is fixedly connected to the horizontal end of the L-shaped sliding member 22. The spring 23 is provided so that after the stator is pulled out, the spring 23 can pop out the sliding member of the L-shaped groove 21, so that the limiting member 20 leaves the limiting hole 14, and further realizes the disassembly of the stator housing 7.

[0031] As a preferred technical solution in this embodiment, the side wall of the stator housing 7 is provided with a plurality of heat dissipation holes 9 and a wire hole 10; the heat dissipation holes 9 can realize heat dissipation of the coil body 19, and the wire hole 10 facilitates the wires to be passed through at both ends of the coil body 19.

[0032] As a preferred technical solution in this embodiment, a heat dissipation groove 12 is provided at the top of the stator housing 7, and a plurality of heat dissipation grooves 12 are arranged in a ring array and staggered between a plurality of plug-in parts 13; the opening of the heat dissipation grooves 12 can realize the conduction of heat from the top and the bottom, and further realize heat dissipation.

[0033] As a preferred technical solution in this embodiment, a sealing element 5 is provided between the pin fixing plate 6 and the top cover 4; the sealing element 5 realizes the sealing performance between the top cover 4 and the internal coil component.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vehicle-mounted solenoid valve coil, comprising a coil assembly housing (1), wherein a coil assembly is disposed inside the coil assembly housing (1), a fixing member (3) is disposed at the bottom end of the coil assembly, a pin fixing plate (6) is disposed at the top end of the coil assembly, the pins of the pin fixing plate (6) are disposed inside an interface module (2), and a top cover (4) is disposed at the top end of the coil assembly housing (1), characterized in that, The coil assembly includes a coil roller (8), a coil body (19) wound around the outside of the coil roller (8), and two stator shells (7) covering the outside of the coil roller (8). The inner sides of the two stator shells (7) are provided with a ring array of plug-in parts (13). The inner wall of the coil roller (8) is fixedly provided with an inner ring (15). A stator part (11) is inserted into the inner ring (15). The inner ring (15) is provided with a plurality of plug-in slots (16) corresponding to the plug-in parts (13). The plug-in parts (13) of the upper and lower stator shells (7) are respectively inserted into the plug-in slots (16) of the upper and lower inner rings (15). The plug-in slots (16) are provided with limit components inside.

2. The solenoid valve coil for vehicle according to claim 1, wherein The limiting component includes a limiting hole (14) opened on the plug (13), an L-shaped groove (21) opened on the inner ring (15), and an L-shaped sliding member (22) is provided inside the L-shaped groove (21).

3. The solenoid valve coil for vehicle according to claim 2, wherein The top of the L-shaped groove (21) is open on both sides, so that the L-shaped groove (21) and the insertion groove (16) are connected to the outside. The top of the L-shaped sliding member (22) is provided with a limiting member (20) on the side of the insertion groove (16), and the limiting member (20) and the limiting hole (14) are adapted to each other.

4. The solenoid valve for a vehicle according to claim 3, wherein The top of the L-shaped slider (22) is provided with a pressing block (17) on the side away from the limiting member (20), and the side wall of the pressing block (17) is provided with a wedge-shaped surface (18).

5. The solenoid valve coil for vehicle according to claim 4, wherein A spring (23) is provided on the horizontal section of the L-shaped groove (21), and the spring (23) is fixedly connected to the horizontal end of the L-shaped sliding member (22).

6. The solenoid valve coil for vehicle according to claim 1, wherein The stator housing (7) has multiple heat dissipation holes (9) and a wire through hole (10) on its side wall.

7. The solenoid valve coil for vehicle according to claim 1, wherein The top of the stator housing (7) is provided with heat dissipation grooves (12), and a plurality of heat dissipation grooves (12) are arranged in a ring array and staggered between a plurality of plug-in parts (13).

8. The solenoid valve coil for vehicle according to claim 1, wherein A sealing element (5) is provided between the pin fixing plate (6) and the top cover (4).

Images