Heated in-line electrically controlled drain valve

Abstract

The utility model discloses a built-in electric control water drain valve with heating, including electromagnetic valve forming piece, iron core spring, moving iron core and the lower valve body of fixed connection in the bottom of electromagnetic valve forming piece, and electromagnetic valve forming piece has preset static iron core and coil, the lower valve body includes the body of cup -shaped and the drain pipeline that extends from the body bottom to the top along the axial direction, and the valve mouth of drain pipeline top corresponds with moving iron core, the periphery of drain pipeline is equipped with heater, the utility model discloses the part component required by electromagnetic valve is integrated in the inside in advance, and the accessory structure is more simple and easy, and the assembly is simple, and the manufacturing cost is reduced, and the partial leakage point in the inside is eliminated simultaneously, makes product yield ratio promotion, in addition, the heater in the utility model is installed in the whole drain passage vertically, guarantees the even heating, and its inside is completely dry seal, and will not appear the poor contact, improves product reliability.

Description

Technical Field

[0001] This utility model relates to the field of automotive electronically controlled drain valve technology, specifically to a built-in electronically controlled drain valve with heating. Background Technology

[0002] The electrically controlled drain valve drains water by switching the valve on and off using electromagnetic force. To prevent the drain outlet from freezing and clogging in low-temperature environments, a heating element is usually installed near the drain outlet to heat it.

[0003] Existing electronically controlled drain valves have numerous and complex components, complicated assembly, many internal sealing points, and a low overall yield rate. Furthermore, due to the limited internal space of the lower valve body, the heating element is installed at the bottom of the drain outlet, resulting in poor heating performance. Additionally, the heating element is prone to failure when wet, leading to a short product lifespan and poor reliability. Utility Model Content

[0004] The purpose of this invention is to provide a built-in electrically controlled drain valve with a simplified structure and better heating effect, so as to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A heated, built-in electrically controlled drain valve includes a solenoid valve assembly, an iron core spring, a moving iron core, and a lower valve body fixedly connected to the bottom of the solenoid valve assembly. The solenoid valve assembly has a pre-installed stationary iron core and a coil. The iron core spring and the moving iron core are installed inside the solenoid valve assembly. A water inlet is provided on the side of the solenoid valve assembly. The lower valve body includes a cup-shaped body and a drain pipe extending axially from the bottom of the body to the top. The valve port at the top of the drain pipe corresponds to the moving iron core, allowing the moving iron core to move axially to open or close the valve port. A heater is provided around the drain pipe.

[0007] Preferably, the solenoid valve molding part has an iron core channel along the axial direction in the middle, the stationary iron core is pre-placed in the iron core channel, and the iron core spring and the moving iron core are sequentially arranged in the iron core channel.

[0008] Preferably, the outer contour of the valve port matches the inner diameter of the iron core channel.

[0009] Preferably, a valve port sealing ring is provided between the outer surface of the valve port and the iron core channel.

[0010] Preferably, a connecting part is provided below the core channel, and the outer diameter of the connecting part matches the inner diameter of the body.

[0011] Preferably, a sealing ring is provided between the outer surface of the connecting part and the body.

[0012] Preferably, the solenoid valve molded part and the lower valve body are fixed by a solenoid valve fixing pin, the lower valve body is provided with a pin hole, and the solenoid valve molded part is provided with a corresponding pin groove.

[0013] Preferably, the end of the moving iron core is provided with an iron core sealing block that matches the valve port.

[0014] Preferably, a filter screen is provided outside the water inlet.

[0015] Preferably, the bottom of the drainage pipe is provided with a water inlet pipe.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] 1. The solenoid valve molding part in this utility model adopts an integrated molding part, which integrates the required parts of the solenoid valve in advance, making the accessory structure more streamlined, easier to assemble, reducing manufacturing costs, and eliminating some internal leaks, thereby improving the product yield.

[0018] 2. In this utility model, the heater in the lower valve body covers the entire drainage pipe, which improves the heating effect and ensures uniform heating. The heater is contained in a sealed cavity and is completely isolated from the water and air channels, which can ensure that the inside is completely dry and sealed, improves product reliability, and helps to extend the product's service life. Attached Figure Description

[0019] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model.

[0020] Figure 2 This is an exploded view of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments will provide a more detailed description of this utility model.

[0022] Example: A built-in electrically controlled drain valve with heating, such as... Figure 1 , Figure 2 As shown, the device includes a solenoid valve molded part 7, an iron core spring 8, a moving iron core 4, and a lower valve body 1. The solenoid valve molded part 7 is an integral molded part with a pre-built static iron core 72 and a coil 71. The iron core spring 8 and the moving iron core 4 are installed inside the solenoid valve molded part, and the lower valve body 1 is fixedly connected to the bottom of the solenoid valve molded part 7.

[0023] Specifically, the solenoid valve molded part 7 is a hollow cylindrical structure with an axially extending iron core channel extending downwards to the outside. A stationary iron core 72 is pre-fixed deep within the iron core channel, and the iron core spring 8 and the moving iron core 4 are sequentially arranged within the channel. The iron core channel itself serves as the coil frame, and the coil 71 is pre-placed within the cavity outside the channel. The pre-installation of some components in the solenoid valve molded part 7 simplifies the component structure, making assembly easier and eliminating some internal leaks, thus improving product yield.

[0024] In the above structure, a water inlet 15 is provided on the side of the portion of the iron core channel extending to the outside of the solenoid valve molded part 7. The water inlet 15 is connected to the iron core channel, and a filter screen 6 is provided around the water inlet 15. A stepped flared connecting part is integrally connected below the iron core channel for connecting to the lower valve body 1.

[0025] The lower valve body 1 includes a cup-shaped main body and a drain pipe extending axially from the bottom to the top of the main body. A valve port is located at the top of the drain pipe, corresponding to the moving iron core 4. The end face of the moving iron core 4 is provided with an iron core sealing block 5 that matches the valve port. When the moving iron core 4 moves up and down, it can open or close the valve port. A heater 9 surrounds the outside of the drain pipe, covering the entire drain pipe and helping to improve the heating effect while ensuring uniform heating. The heater 9 is located in the cavity between the outside of the drain pipe and the inner wall of the main body, completely isolated from the water flow channels.

[0026] The lower valve body 1 and the solenoid valve molded part 7 are fixedly connected by two solenoid valve fixing pins 12. Specifically, the lower valve body 1 has two pairs of pin holes 13 at the top opposite each other for the solenoid valve fixing pins to be inserted, and the connecting part of the solenoid valve molded part 7 has a corresponding pin groove 14. After the lower valve body 1 and the solenoid valve molded part 7 are assembled in place, they are fixed by inserting the solenoid valve fixing pins 12 into the pin holes 13 and pin grooves 14.

[0027] In this embodiment, the outer contour of the valve port matches the inner diameter of the iron core channel, and the outer surface of the valve port is provided with a valve port sealing ring 10; the outer diameter of the connecting part matches the inner diameter of the body, and the outer surface of the connecting part is also provided with a sealing ring 11.

[0028] During assembly, first install the spring 8 and the moving iron core 4 into the iron core channel, then put the filter screen 6 on the outside of the solenoid valve molded part, and then install the lower valve body 1 on the bottom of the solenoid valve molded part 7, so that the valve port is inserted into the iron core channel and the connecting part is inserted into the body, and align the pin hole 13 and the corresponding pin groove 14 so that they are on the same straight line, and then insert the solenoid valve fixing pin 12 to complete the assembly.

[0029] When the lower valve body 1 and the solenoid valve molding 7 are assembled, the valve port extends into the iron core channel and is sealed. When the moving iron core 4 moves upward under electromagnetic action and opens the valve port, the water inlet 15 is connected to the drainage channel, allowing drainage. After power is cut off, the moving iron core 4 seals the valve port under the action of the spring, disconnecting the passage. At the same time, the connecting part seals with the body of the lower valve body 1, sealing and isolating the cavity where the heater 9 is located, ensuring that the interior is completely dry and sealed.

[0030] In this embodiment, a water inlet pipe 3 is installed at the bottom of the drainage pipe to guide the drainage direction.

[0031] In this embodiment, the side of the lower valve body 1 is also provided with a wiring opening, and a waterproof plug 2 is provided at the opening. The wire passes through the waterproof plug 2 at the opening and enters the cavity where the heater 9 is located to supply power to the heater. At the same time, a connector for supplying power to the coil is led out from the bottom of the solenoid valve molded part 7. The connector is inserted into the cavity where the heater is located and connected to the external wire.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A built-in electrically controlled water discharge valve with heating function, characterized in that: The device includes a solenoid valve molded component, an iron core spring, a moving iron core, and a lower valve body fixedly connected to the bottom of the solenoid valve molded component. The solenoid valve molded component has a pre-installed stationary iron core and a coil. The iron core spring and the moving iron core are installed inside the solenoid valve molded component. The side of the solenoid valve molded component has a water inlet. The lower valve body includes a cup-shaped body and a drain pipe extending axially from the bottom of the body to the top. The valve port at the top of the drain pipe corresponds to the moving iron core, so that the moving iron core can open or block the valve port by moving axially. A heater is installed around the drainage pipe.

2. The built-in electrically controlled water discharge valve with heating according to claim 1, characterized in that, The electromagnetic valve molding part has an iron core channel along the axial direction in the middle. The stationary iron core is pre-placed in the iron core channel, and the iron core spring and the moving iron core are sequentially arranged in the iron core channel.

3. The built-in electrically controlled water discharge valve with heating according to claim 2, characterized in that, The outer contour of the valve port matches the inner diameter of the iron core channel.

4. The built-in electrically controlled water discharge valve with heating according to claim 3, characterized in that, A valve port sealing ring is provided between the outer surface of the valve port and the iron core channel.

5. The built-in electrically controlled water discharge valve with heating according to claim 2, characterized in that, A connecting part is provided below the iron core channel, and the outer diameter of the connecting part matches the inner diameter of the body.

6. The built-in electrically controlled water discharge valve with heating according to claim 5, characterized in that, A sealing ring is provided between the outer surface of the connecting part and the body.

7. The built-in electrically controlled water discharge valve with heating according to claim 5, characterized in that, The solenoid valve molded part and the lower valve body are fixed by a solenoid valve fixing pin. The lower valve body is provided with a pin hole, and the solenoid valve molded part is provided with a corresponding pin groove.

8. The built-in electrically controlled water discharge valve with heating according to claim 1, characterized in that, The end of the moving iron core is provided with an iron core sealing block that matches the valve port.

9. The built-in electrically controlled water discharge valve with heating according to claim 1, characterized in that, A filter screen is installed outside the water inlet.

10. The built-in electrically controlled water discharge valve with heating according to claim 1, characterized in that, The bottom of the drainage pipe is equipped with a water inlet pipe.

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