An electromagnetic valve coil for an automobile brake system

Abstract

This utility model discloses an electromagnetic valve coil for an automotive braking system, comprising an upper fixed cylinder, a lower fixed cylinder, and an iron core. A winding ring is rotatably mounted on the upper fixed cylinder for winding the coil. The lower fixed cylinder and the iron core are threaded together. A limiting component is provided between the winding ring and the upper fixed cylinder, and a limiting ring is provided at the top of the iron core. In this utility model, the coil to be installed is pre-wound onto the winding ring. Then, the upper fixed cylinder is inserted into the lower fixed cylinder. By rotating the winding ring, the position of the coil connector is adjusted so that the coil connector is closer to the wiring pin, facilitating the connection between the coil and the wiring pin. The limiting component then limits the winding ring to prevent rotation. Finally, the iron core is threaded onto the lower fixed cylinder. The limiting ring at the top of the iron core further limits the upper fixed cylinder, achieving a limiting connection between the upper and lower fixed cylinders.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve coil technology, and in particular to an electromagnetic valve coil for automotive braking systems. Background Technology

[0002] In automotive braking systems, solenoid valves, as core actuators, play a crucial role in precisely regulating the flow of hydraulic or pneumatic media. Especially in electronically controlled braking systems, they achieve pressure gradient control through rapid opening and closing, ensuring the dynamic distribution and stability of braking force. Their response speed and reliability are directly related to vehicle braking performance and driving safety.

[0003] Such solenoid valves require regular maintenance or replacement, mainly due to mechanical wear caused by high-frequency operation, aging and failure of seals, structural damage caused by media corrosion, electrical connection failures, and channel blockage caused by impurity deposition. These factors will gradually reduce their control accuracy and response efficiency, thereby affecting the overall performance and safety of the braking system. Therefore, periodic maintenance is necessary to ensure that they are always in the best working condition.

[0004] Patent document CN218031696U discloses a miniature solenoid valve with a split-type coil package, including an electromagnetic component and a magnetic attraction component. The electromagnetic component includes an iron core, a coil, and an iron shell. The iron core has a stop and an iron post connected together. The coil is detachably wound around the iron post and abuts against the stop. One end of the iron shell has an opening, and the other end has a fixing port. The iron core and the coil are disposed inside the iron shell, with the end of the iron core furthest from the opening inserted into the fixing port. The end of the iron core with the stop protrudes at least from the opening to the outside of the iron shell. The magnetic attraction component is disposed on the stop. When the coil is wound around the iron core, the stop can securely fix the coil in the iron core. By aligning and inserting the iron post into the fixing port inside the iron shell, the iron core and the coil can be aligned and disposed in the miniature solenoid valve. The miniature solenoid valve with a split-type coil package provided by this utility model can quickly and accurately install the coil inside the miniature solenoid valve, improving production efficiency and yield.

[0005] As in the prior art of the aforementioned patent, the solenoid valve coil is composed of separate parts. This method can achieve quick installation. However, during the winding process, since the coil length and the number of turns are not fixed, and the winding method is different, the wires at both ends of the coil after winding are sometimes far from the pin. In this case, either the winding method should be readjusted or the wires should be cut short so that there is not too much slack after the wires are connected to the pins. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide a solenoid valve coil for an automotive braking system to overcome the above-mentioned shortcomings in the prior art.

[0007] Technical solution: A solenoid valve coil for an automotive braking system includes an upper fixed cylinder, a lower fixed cylinder, and an iron core. A winding ring is rotatably mounted on the upper fixed cylinder for winding the coil. The lower fixed cylinder and the iron core are threaded together. A limit assembly is provided between the winding ring and the upper fixed cylinder. A limit ring is provided at the top of the iron core, and the limit ring overlaps the upper fixed cylinder.

[0008] As a further description of the above technical solution: a wiring pin part is fixedly installed on the lower fixed cylinder.

[0009] As a further description of the above technical solution: the inner wall of the winding ring is provided with a rotating part, the outer wall of the upper fixed cylinder is provided with a rotating groove, and the rotating part is embedded and rotatably installed inside the rotating groove.

[0010] As a further description of the above technical solution: the inner wall of the lower fixed cylinder is provided with a threaded groove, the inner wall of the upper fixed cylinder is slidably fitted and connected to the outer wall of the lower fixed cylinder, and the outer wall of the iron core is threadedly connected to the inner wall of the lower fixed cylinder through the threaded groove.

[0011] As a further description of the above technical solution: the limiting component includes a movable groove formed on the inner wall of the upper fixed cylinder. The movable groove penetrates the inner wall of the upper fixed cylinder and is arranged in a ring array with the center of the upper fixed cylinder as the axis. Ball bearings are movably installed inside the movable groove.

[0012] As a further description of the above technical solution: the inner wall of the rotating part on the winding ring is provided with a plurality of embedded grooves corresponding to the movable groove.

[0013] As a further description of the above technical solution: the ball is made of elastic rubber.

[0014] As a further description of the above technical solution: the space formed after the movable groove and the embedded groove are connected is formed by the overlap of two ball grooves of the same volume as the ball, and the channel between the two ball grooves allows the ball to move freely.

[0015] Beneficial effects: The coil to be installed is pre-wound onto the winding ring, then the upper fixing cylinder is inserted into the lower fixing cylinder. By rotating the winding ring, the position of the coil connector is adjusted so that the coil connector is closer to the wiring pin, making it easier to connect the coil to the wiring pin. Then, the limiting component limits the winding ring to prevent it from rotating. Then, the iron core is threaded onto the lower fixing cylinder. The limiting ring at the top of the iron core can further limit the upper fixing cylinder, realizing the limiting connection between the upper and lower fixing cylinders. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a solenoid valve coil for an automotive braking system proposed in this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention after the iron core has been disassembled.

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention when the iron core, upper fixed cylinder and lower fixed cylinder are disassembled and separated.

[0019] Figure 4 This is a three-dimensional structural diagram of the present invention after separating the upper fixed cylinder and the winding ring;

[0020] Figure 5 This is a cross-sectional view of the upper fixing cylinder, winding ring, and ball bearings of this utility model.

[0021] Figure 6 For the present utility model Figure 5 A magnified structural diagram at point A;

[0022] Figure 7 This utility model Figure 5 A schematic diagram of the cross-sectional structure after the structure is inserted into the lower fixing cylinder;

[0023] Figure 8 This is an enlarged structural diagram of point B in this utility model;

[0024] Figure 9 This is a cross-sectional structural diagram of the movable groove and the embedded groove of this utility model;

[0025] Figure 10 This is a cross-sectional structural diagram of the movable groove and the embedded groove opening method of this utility model.

[0026] Legend:

[0027] 1. Lower fixed cylinder; 2. Threaded groove; 3. Iron core; 4. Limiting ring; 5. Upper fixed cylinder; 6. Winding ring; 7. Ball bearing; 8. Rotating groove; 9. Rotating part; 10. Embedded groove; 11. Movable groove; 101. Wiring pin part. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1-10An electromagnetic valve coil for an automotive braking system includes an upper fixed cylinder 5, a lower fixed cylinder 1, and an iron core 3. A winding ring 6 is rotatably mounted on the upper fixed cylinder 5 for winding the coil. The lower fixed cylinder 1 and the iron core 3 are threaded together. A limiting component is provided between the winding ring 6 and the upper fixed cylinder 5. A limiting ring 4 is provided at the top of the iron core 3, and the limiting ring 4 overlaps the upper fixed cylinder 5. The coil to be installed is pre-wound on the winding ring 6. Then, the upper fixed cylinder 5 is inserted into the lower fixed cylinder 1. By rotating the winding ring 6, the position of the coil connector is adjusted so that the coil connector is closer to the wiring pin 101, facilitating the connection between the coil and the wiring pin. The limiting component then limits the winding ring 6 to prevent it from rotating. Finally, the iron core 3 is threadedly installed on the lower fixed cylinder 1. The limiting ring 4 at the top of the iron core 3 further limits the upper fixed cylinder 5, achieving a limiting connection between the upper fixed cylinder 5 and the lower fixed cylinder 1.

[0030] As a preferred technical solution of this embodiment, a wiring pin portion 101 is fixedly installed on the lower fixed cylinder 1; the wiring pin portion 101 is used for wiring the coil.

[0031] As a preferred technical solution of this embodiment, the inner wall of the winding ring 6 is provided with a rotating part 9, and the outer wall of the upper fixed cylinder 5 is provided with a rotating groove 8. The rotating part 9 is embedded and rotatably installed inside the rotating groove 8. The rotating part 9 is embedded inside the rotating groove 8, thereby realizing the stable rotation of the winding ring 6 on the side wall of the upper fixed cylinder 5.

[0032] As a preferred technical solution of this embodiment, the inner wall of the lower fixed cylinder 1 is provided with a threaded groove 2, the inner wall of the upper fixed cylinder 5 is slidably fitted and connected to the outer wall of the lower fixed cylinder 1, and the outer wall of the iron core 3 is threadedly connected to the inner wall of the lower fixed cylinder 1 through the threaded groove 2; the upper fixed cylinder 5 is inserted into the outer wall of the lower fixed cylinder 1, and then the iron core 3 is threadedly connected to the inner wall of the lower fixed cylinder 1, and the limiting ring 4 at the top of the iron core 3 further limits the position of the upper fixed cylinder 5.

[0033] As a preferred technical solution of this embodiment, the limiting component includes a movable groove 11 formed on the inner wall of the upper fixed cylinder 5. The movable groove 11 penetrates the inner wall of the upper fixed cylinder 5 and is arranged in a ring array with the center of the upper fixed cylinder 5 as the axis. A ball bearing 7 is movably installed inside the movable groove 11. When the upper fixed cylinder 5 is inserted into the lower fixed cylinder 1, the inner wall of the lower fixed cylinder 1 presses against the side wall of the upper fixed cylinder 5, and the multiple balls bearing 7 move into the movable groove 11.

[0034] As a preferred technical solution of this embodiment, the inner wall of the rotating part 9 on the winding ring 6 is provided with a plurality of embedding grooves 10 corresponding to the movable groove 11; a plurality of balls 7 move into the movable groove 11, and the last part of the balls 7 will be stuck on the outside of the upper fixed cylinder 5. At this time, the balls 7 will be squeezed and deformed by the winding ring 6. When the winding ring 6 rotates, when the embedding groove 10 is connected with the movable groove 11, a part of the balls 7 can be placed inside the movable groove 11, and another part can be stuck inside the embedding groove 10, thereby realizing the limiting of the winding ring 6.

[0035] As a preferred technical solution in this embodiment, the ball 7 is made of elastic rubber; the elastic rubber can ensure the elasticity and a certain deformation capacity of the ball 7.

[0036] As a preferred technical solution of this embodiment, the space formed after the movable groove 11 and the embedded groove 10 are connected is formed by two ball grooves of the same volume as the ball 7 overlapping, and the channel between the two ball grooves can facilitate the free movement of the ball 7. The ball 7 has three states. In one state, most of the ball 7 is inside the movable groove 11, and another part is inside the upper fixed cylinder 5. At this time, the upper fixed cylinder 5 and the lower fixed cylinder 1 are not connected. In another state, after the upper fixed cylinder 5 and the lower fixed cylinder 1 are connected, the lower fixed cylinder 1 squeezes the ball 7 inward. The ball 7 is inside the movable groove 11, and the other side is squeezed by the winding ring 6. At this time, rotating the winding ring 6 connects the movable groove 11 and the embedded groove 10, which can make the ball 7 enter the third state, that is, a part of the ball 7 is inside the movable groove 11, and the other part is stuck inside the embedded groove 10. At this time, the winding ring 6 can be fixed and limited at this position.

[0037] 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 solenoid valve coil for an automotive braking system, comprising an upper fixed cylinder (5), a lower fixed cylinder (1), and an iron core (3), characterized in that, A winding ring (6) is rotatably mounted on the upper fixed cylinder (5). The winding ring (6) is used to wind the coil. The lower fixed cylinder (1) and the iron core (3) are threaded together. A limit assembly is provided between the winding ring (6) and the upper fixed cylinder (5). A limit ring (4) is provided at the top of the iron core (3). The limit ring (4) overlaps above the upper fixed cylinder (5).

2. The solenoid valve coil for an automotive braking system according to claim 1, characterized in that, A wiring pin part (101) is fixedly installed on the lower fixed cylinder (1).

3. The solenoid valve coil for an automotive braking system according to claim 1, characterized in that, The inner wall of the winding ring (6) is provided with a rotating part (9), and the outer wall of the upper fixed cylinder (5) is provided with a rotating groove (8). The rotating part (9) is embedded and rotatably installed inside the rotating groove (8).

4. A solenoid valve coil for an automotive braking system according to claim 3, characterized in that, The inner wall of the lower fixed cylinder (1) is provided with a threaded groove (2), the inner wall of the upper fixed cylinder (5) is slidably fitted and connected to the outer wall of the lower fixed cylinder (1), and the outer wall of the iron core (3) is threadedly connected to the inner wall of the lower fixed cylinder (1) through the threaded groove (2).

5. The solenoid valve coil for use in a brake system of an automobile according to claim 1, wherein The limiting component includes a movable groove (11) formed on the inner wall of the upper fixed cylinder (5). The movable groove (11) penetrates the inner wall of the upper fixed cylinder (5) and is arranged in a ring array with the center of the upper fixed cylinder (5) as the axis. A ball bearing (7) is movably installed inside the movable groove (11).

6. The solenoid valve coil for use in a brake system of an automobile according to claim 1, wherein The inner wall of the rotating part (9) on the winding ring (6) is provided with a plurality of embedded grooves (10) corresponding to the movable groove (11).

7. A solenoid valve coil for an automotive braking system according to claim 5, characterized in that, The ball (7) is made of elastic rubber.

8. A solenoid valve coil for an automotive braking system according to claim 6, characterized in that, The space formed by the docking of the movable groove (11) and the embedded groove (10) is formed by the overlap of two ball grooves of the same volume as the ball (7), and the channel between the two ball grooves allows the ball (7) to move freely.

Images