Gear shifting emergency unlocking electromagnetic valve for vehicle

Abstract

The utility model belongs to the technical field of automotive electromagnetic valves, and discloses an automotive gear shifting emergency unlocking electromagnetic valve which comprises a shell and a coil frame, the coil frame is fixedly installed in the center of the interior of the shell, an enameled wire is wound around the exterior of the coil frame, and a guide cylinder is fixedly installed in the middle of the coil frame. A static iron core, a reset spring and a movable iron core are sequentially arranged in the guide cylinder, one end of the static iron core is fixedly installed in the center of the bottom of the inner wall of the outer shell, the electromagnetic valve is small in size, small in occupied cab space and light in mass, and the requirement for light weight of an automobile is met; a rubber / foam shock pad is used for reducing noise and vibration by limiting two sides of the action of the electromagnetic valve, a small amount of liquid oil is coated at the contact surface matching part of the coil rack and the core rod, so that the noise of the electromagnetic valve is reduced, the response speed is high, and meanwhile, the comfort of gear shifting experience of customers is met; the electromagnetic valve pull rod can bear lateral impact force of 600N.

Description

Technical Field

[0001] This utility model relates to the field of automotive solenoid valve technology, specifically to an emergency unlocking solenoid valve for automotive gear shifting. Background Technology

[0002] Existing automotive shift solenoid valves are not suitable for the needs of customers' new models: Design a solenoid valve that is small in size, low in noise and vibration, and fast in response time, taking into account the installation size environment. Utility Model Content

[0003] The purpose of this invention is to provide an emergency unlocking solenoid valve for vehicle gear shifting, which aims to solve the aforementioned technical problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An emergency unlocking solenoid valve for vehicle gear shifting includes a housing and a coil frame. The coil frame is fixedly installed in the center of the interior of the housing. Enamelled wire is wound around the outside of the coil frame. A guide cylinder is fixedly installed in the middle of the coil frame. A stationary iron core, a return spring, and a moving iron core are sequentially arranged inside the guide cylinder. One end of the stationary iron core is fixedly installed in the center of the bottom of the inner wall of the housing. The return spring is sleeved on the outside of the stationary iron core, with one end fixedly connected to the bottom of the stationary iron core and the other end fixedly connected to one end of the moving iron core. The other end of the moving iron core is fixedly installed to a pull rod. The other end of the pull rod protrudes from the top of the housing. A damper is fixedly installed in the center of the top of the stationary iron core.

[0006] In a preferred embodiment of this utility model, the outer shell includes a yoke and a cover plate, and the yoke, the guide cylinder and the cover plate are connected by riveting and pressing.

[0007] In a preferred embodiment of this utility model, the top of the damper extends beyond the top of the stationary iron core, and a limiting groove is formed in the center of the bottom of the moving iron core. The top of the damper extends into the limiting groove and abuts against the top of its inner wall.

[0008] In a preferred embodiment of this utility model, a shock-absorbing pad is sleeved on the outside of the pull rod, and the shock-absorbing pad is fixedly installed on the top of the moving iron core. The shock-absorbing pad is made of silicone foam material.

[0009] In a preferred embodiment of this utility model, a magnetizing ring is riveted to the top center of the coil frame, and the magnetizing ring is located between the inner wall of the coil frame and the outer wall of the guide cylinder.

[0010] In a preferred embodiment of this utility model, pins are welded to both poles of the enameled wire. The pins are fixedly installed at the bottom of the coil frame. The top of the pin is welded to one end of the wire. The wire is arranged along the yoke, and its other end extends beyond the top of the cover plate.

[0011] The beneficial effects of this utility model are:

[0012] The solenoid valve of this invention is small in size, occupies little space in the cab, and is lightweight, meeting the requirements for lightweight vehicles. The solenoid valve's two-sided limit switches use rubber / foam damping pads to reduce noise and vibration. A small amount of liquid oil is applied to the contact surface between the coil frame and the core rod to reduce the noise of the solenoid valve. The response speed is fast, while also meeting the customer's comfort requirements for shifting gears. The solenoid valve rod can withstand a lateral impact force of 600N. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a three-dimensional exploded structure diagram of this utility model;

[0015] Figure 3 This is a schematic diagram of the full cross-section of this utility model.

[0016] The attached diagram is labeled as follows: 1. Pull rod; 2. Wire; 3. Cover plate; 4. Moving iron core; 5. Return spring; 6. Yoke; 7. Coil frame; 8. Stationary iron core; 9. Damper; 10. Enamelled wire; 11. Magnetizing ring; 12. Vibration damping pad; 13. Guide cylinder; 14. Pin. Detailed Implementation

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0018] Example:

[0019] like Figure 1-3As shown, this embodiment provides a vehicle-mounted emergency unlocking solenoid valve for gear shifting, including a housing and a coil frame 7. The coil frame 7 is fixedly installed in the center of the housing. Enamelled wire 10 is wound around the outside of the coil frame 7. A guide cylinder 13 is fixedly installed in the middle of the coil frame 7. A stationary iron core 8, a return spring 5, and a moving iron core 4 are arranged sequentially inside the guide cylinder 13. One end of the stationary iron core 8 is fixedly installed in the center of the bottom of the inner wall of the housing. The return spring 5 is sleeved on the outside of the stationary iron core 8, with one end fixedly connected to the bottom of the stationary iron core 8 and the other end fixedly connected to one end of the moving iron core 4. The other end of the moving iron core 4 is fixedly installed to a pull rod 1. The other end of the pull rod 1 extends out of the top of the housing. A damper 9 is fixedly installed in the center of the top of the stationary iron core 8.

[0020] Specifically, the emergency unlocking solenoid valve for this vehicle is fixed in the cavity of the shift mechanism, and the wiring harness is connected to the transmission control unit. It performs the function of locking or unlocking the emergency button by receiving the voltage signal from the TCU.

[0021] The assembly process of this solenoid valve mainly includes the following steps:

[0022] The magnetizing sleeve and coil frame 7 are assembled into a coil frame 7 sub-assembly by crimping; the coil frame 7 sub-assembly and enameled wire 10 are assembled into a coil assembly by winding; the wire 2, pin 14, and coil assembly are assembled into a coil sub-assembly by welding; the shock-absorbing pad 12 and tie rod 1 assembly are assembled into a tie rod 1 sub-assembly by assembly; the stationary iron core 8 assembly and yoke 6 are assembled into a yoke 6 assembly by crimping; and the damper 9 and yoke 6 assembly are assembled into a yoke 6 sub-assembly by assembly.

[0023] Assembly:

[0024] The coil sub-assembly, pull rod 1 sub-assembly, spring, cover plate 3, and copper tube yoke 6 sub-assembly are assembled into a solenoid valve by riveting.

[0025] The above structural design gives the overall structure the following advantages:

[0026] 1. The solenoid valve is small in size, occupies little space in the cab, and is lightweight, meeting the requirements for lightweight vehicles;

[0027] 2. The solenoid valve's two-sided limit switch uses rubber / foam damping pads 12 to reduce noise and vibration. A small amount of liquid oil is applied to the contact surface between the coil frame 7 and the core rod to reduce the noise of the solenoid valve, improve the response speed, and meet the customer's comfort in shifting gears.

[0028] 3. The solenoid valve rod 1 can withstand a lateral impact force of 600N.

[0029] In a preferred embodiment of the present invention, the outer shell further includes a yoke 6 and a cover plate 3, and the yoke 6, the guide cylinder 13 and the cover plate 3 are connected by riveting and pressing.

[0030] In a preferred embodiment of the present invention, the top of the damper 9 extends beyond the top of the stationary iron core 8, and a limiting groove is formed in the center of the bottom of the moving iron core 4. The top of the damper 9 extends into the limiting groove and abuts against the top of its inner wall.

[0031] In a preferred embodiment of this utility model, the pull rod 1 is further provided with a shock-absorbing pad 12, which is fixedly installed on the top of the moving iron core 4. The shock-absorbing pad 12 is made of silicone foam material.

[0032] In a preferred embodiment of the present invention, a magnetizing ring 11 is further riveted to the top center of the coil frame 7, and the magnetizing ring 11 is located between the inner wall of the coil frame 7 and the outer wall of the guide cylinder 13.

[0033] In a preferred embodiment of the present invention, the two poles of the enameled wire 10 are further welded with pins 14, which are fixedly installed at the bottom of the coil frame 7. The top of the pins 14 is welded to one end of the wire 2, which is arranged along the yoke 6, and its other end extends beyond the top of the cover plate 3.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A vehicle-mounted emergency unlocking solenoid valve for gear shifting, comprising a housing and a coil holder (7), characterized in that, The coil frame (7) is fixedly installed in the center of the interior of the housing. Enamelled wire (10) is wound around the outside of the coil frame (7). A guide cylinder (13) is fixedly installed in the middle of the coil frame (7). A stationary iron core (8), a return spring (5) and a moving iron core (4) are arranged in sequence inside the guide cylinder (13). One end of the stationary iron core (8) is fixedly installed in the center of the bottom of the inner wall of the housing. The return spring (5) is sleeved on the outside of the stationary iron core (8). One end of the spring is fixedly connected to the bottom of the stationary iron core (8), and the other end is fixedly connected to one end of the moving iron core (4). The other end of the moving iron core (4) is fixedly installed with a pull rod (1). The other end of the pull rod (1) extends out of the top of the housing. A damper (9) is fixedly installed in the center of the top of the stationary iron core (8).

2. The vehicle shift emergency unlocking solenoid valve according to claim 1, characterized in that, The outer shell includes a yoke (6) and a cover plate (3), and the yoke (6), the guide cylinder (13) and the cover plate (3) are connected by riveting and pressing.

3. The vehicle shift emergency unlocking solenoid valve according to claim 2, characterized in that, The top of the damper (9) extends beyond the top of the stationary iron core (8), and a limiting groove is formed in the center of the bottom of the moving iron core (4). The top of the damper (9) extends into the limiting groove and abuts against the top of its inner wall.

4. The vehicle shift emergency unlocking solenoid valve according to claim 3, characterized in that, The pull rod (1) is fitted with a shock-absorbing pad (12), which is fixedly installed on the top of the moving iron core (4). The shock-absorbing pad (12) is made of silicone foam material.

5. The vehicle shift emergency unlocking solenoid valve according to claim 4, characterized in that, A magnetizing ring (11) is riveted to the top center of the coil frame (7), and the magnetizing ring (11) is located between the inner wall of the coil frame (7) and the outer wall of the guide cylinder (13).

6. The vehicle shift emergency unlocking solenoid valve according to claim 2, characterized in that, Both poles of the enameled wire (10) are welded with pins (14), which are fixedly installed at the bottom of the coil frame (7). The top of the pin (14) is welded to one end of the wire (2), which is arranged along the yoke (6) and its other end extends beyond the top of the cover plate (3).

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