An integrated sensor solenoid valve

Abstract

The application relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve integrated with a sensor, which comprises an electromagnetic valve and a sleeve, the sleeve is slidably arranged in the electromagnetic valve, the top end of the sleeve is provided with a sensor base, and a PT sensor is arranged on the sensor base; the electromagnetic valve integrated with the sensor has the beneficial effects that the PT sensor (temperature and pressure sensor) is integrated on the electromagnetic valve, the electromagnetic valve and the PT sensor are integrated, the integration of the system is improved, the separate arrangement of the PT sensor in the system is reduced, and the overall structure is compact and small in size.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve integrated with sensors. BACKGROUND

[0002] With the development of new energy vehicles, the integration of air conditioning heat pump systems is becoming higher and higher, and higher requirements are put forward for each component in the air conditioning system. In the prior art, the sensors are arranged separately in the management or integrated in a small module, and essentially still exist as separate individuals.

[0003] Therefore, an electromagnetic valve integrated with sensors is needed to solve the above problems. SUMMARY

[0004] In order to solve the above problems, that is, to solve the problem that the existing sensors arranged on the electromagnetic valve are still separate individuals and the low degree of integration, the present application provides an electromagnetic valve integrated with sensors.

[0005] An electromagnetic valve integrated with sensors, comprising an electromagnetic valve, further comprising a sleeve, the sleeve is slidingly installed inside the electromagnetic valve, the top end of the sleeve is provided with a sensor base, and the sensor base is provided with a PT sensor.

[0006] The above-mentioned electromagnetic valve integrated with sensors, the sleeve and the sensor base are laser welded.

[0007] The above-mentioned electromagnetic valve integrated with sensors, the PT sensor is composed of a P sensor and a T sensor, the P sensor is a pressure sensor, and the T sensor is a temperature sensor; the PT sensor can be a separate P sensor or a T sensor.

[0008] The above-mentioned electromagnetic valve integrated with sensors, a moving iron core is slidingly installed inside the sleeve, a coil is arranged inside the moving iron core, and a permanent magnet is arranged at the top of the moving iron core; after the coil is energized, a repulsive force is generated with the permanent magnet, which pushes the moving iron core to move downward.

[0009] The above-mentioned electromagnetic valve integrated with sensors, a valve needle is arranged inside the moving iron core, a fixed iron core is arranged at the bottom of the sleeve, the bottom end of the valve needle extends out of the moving iron core and penetrates through the fixed iron core, and a piston sleeve is fixedly installed at the bottom end of the fixed iron core.

[0010] The above-mentioned electromagnetic valve integrated with sensors, the sleeve and the fixed iron core are laser welded, and the fixed iron core and the piston sleeve are also laser welded.

[0011] In the above-mentioned solenoid valve with integrated sensor, a piston component is slidably mounted inside the piston sleeve, a valve seat is laser-welded below the piston sleeve, and a spring is provided between the piston component and the valve seat.

[0012] The beneficial effects of the present invention are:

[0013] 1. The present invention integrates the PT sensor (temperature and pressure sensor) on the solenoid valve, making it one with the solenoid valve, thereby improving the integration of the system and reducing the need for separate arrangements of the PT sensor in the system.

[0014] 2. The present invention integrates a PT sensor (temperature and pressure sensor) on the solenoid valve, so that the overall structure is compact and the volume is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Fig. 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0017] In the picture:

[0018] 1. Moving iron core; 2. Sleeve; 3. Coil; 4. Fixed iron core; 5. Solenoid valve; 6. Piston sleeve; 7. Piston component; 8. Valve seat; 9. Valve needle; 10. Sensor base; 11. PT sensor; 12. P sensor; 13. T sensor; 14. Spring. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] like Figs. 1-2 As shown, an embodiment of the present invention discloses a solenoid valve with an integrated sensor, including a solenoid valve 5 and a sleeve 2. The sleeve 2 is slidably installed inside the solenoid valve 5. A sensor base 10 is provided at the top of the sleeve 2, and a PT sensor 11 is provided on the sensor base 10.

[0021] like Figs. 1-2 As shown, the sleeve 2 and the sensor base 10 are laser welded.

[0022] like Fig. 2 As shown, the PT sensor 11 is composed of a P sensor 12 and a T sensor 13 , the P sensor 12 is a pressure sensor, and the T sensor 13 is a temperature sensor; the PT sensor 11 can be a separate P sensor 12 or a T sensor 13 .

[0023] like Fig. 2As shown, the inside of the sleeve 2 is slidingly installed with the moving iron core 1, the inside of the moving iron core 1 is provided with the coil 3, and the top of the moving iron core 1 is provided with the permanent magnet; after the coil 3 is electrified, a repulsive force is generated with the permanent magnet, and the moving iron core 1 is pushed to move downward.

[0024] As shown in the drawings, Fig. 2 As shown, the inside of the moving iron core 1 is provided with the valve needle 9, the bottom of the sleeve 2 is provided with the fixed iron core 4, the bottom end of the valve needle 9 extends out of the moving iron core 1 and penetrates through the fixed iron core 4, and the bottom end of the fixed iron core 4 is fixedly installed with the piston sleeve 6.

[0025] As shown in the drawings, Fig. 2 As shown, the sleeve 2 and the fixed iron core 4 are laser welded, and the fixed iron core 4 and the piston sleeve 6 are also laser welded.

[0026] As shown in the drawings, Fig. 2 As shown, the inside of the piston sleeve 6 is slidingly installed with the piston part 7, the lower part of the piston sleeve 6 is laser welded with the valve seat 8, and the piston part 7 and the valve seat 8 are provided with the spring 14.

[0027] In the open valve state, the coil 3 is not electrified, the end surface of the piston part 7 is in contact with the end surface of the piston sleeve 6, at this time the valve port is opened, and the medium flows; in the closed valve state, the coil 3 is electrified, the moving iron core 1 is attracted to the fixed iron core 4 and moves downward, the valve needle 9 is driven to move downward and is in contact with the valve port of the piston part 7, a pressure difference is established between the two cavities of the piston part 7, the piston part 7 moves downward under the action of the pressure difference force and is in contact with the end surface of the valve seat 8, the pipe wall valve port is cut off, and the medium flow is cut off.

[0028] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not indicative or implied that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The term "comprising" or any other similar word is intended to encompass the inclusion of one or more steps, features, or elements but not to the exclusion of any other steps, features, or elements. The term "comprising" therefore indicates that the inclusion of one or more steps, features, or elements is not a requirement and that other steps, features, or elements can also be included.

[0031] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the present application, and the technical solutions after these changes or replacements will all fall within the protection scope of the present application.

Claims

1. A solenoid valve with an integrated sensor, comprising a solenoid valve (5), characterized in that: It also includes a sleeve (2), the sleeve (2) is slidably mounted inside the solenoid valve (5), a sensor base (10) is provided at the top end of the sleeve (2), and a PT sensor (11) is provided on the sensor base (10); The PT sensor (11) is composed of a P sensor (12) and a T sensor (13), wherein the P sensor (12) is a pressure sensor and the T sensor (13) is a temperature sensor; A moving iron core (1) is slidably mounted inside the sleeve (2), a coil (3) is provided inside the moving iron core (1), and a permanent magnet is provided on the top of the moving iron core (1); A valve needle (9) is provided inside the movable iron core (1), a fixed iron core (4) is provided at the bottom of the sleeve (2), the bottom end of the valve needle (9) extends out of the movable iron core (1) and passes through the fixed iron core (4), and a piston sleeve (6) is fixedly installed at the bottom end of the fixed iron core (4); A piston component (7) is slidably mounted inside the piston sleeve (6), a valve seat (8) is laser-welded below the piston sleeve (6), and a spring (14) is provided between the piston component (7) and the valve seat (8).

2. The solenoid valve with integrated sensor according to claim 1, characterized in that: The sleeve (2) and the sensor base (10) are laser welded.

3. The solenoid valve with integrated sensor according to claim 1, characterized in that: The sleeve (2) and the fixed iron core (4) are laser welded, and the fixed iron core (4) and the piston sleeve (6) are also laser welded.

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