CN212746976U

CN212746976U - Feedback regulation electronic expansion valve and evaporator integrated with same

Info

Publication number: CN212746976U
Application number: CN202021188236.XU
Authority: CN
Inventors: 徐协斌; 黄华波
Original assignee: Hilite Automobile Technology Co ltd
Current assignee: Hilite Automobile Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-19
Anticipated expiration: 2030-06-23

Abstract

The utility model relates to a feedback control electronic expansion valve and integrated feedback control electronic expansion valve's evaporimeter belongs to thermal management system equipment field. The feedback regulation electronic expansion valve comprises a valve body, a circuit board, a temperature sensor and a pressure sensor, wherein the temperature sensor and the pressure sensor are fixedly arranged on the valve body and are in signal connection with the circuit board; the evaporator integrated with the feedback regulation electronic expansion valve comprises an evaporator body and the feedback regulation electronic expansion valve, wherein a valve body of the feedback regulation electronic expansion valve is fixedly arranged on the evaporator body. The utility model discloses can directly transmit the data that detect for the circuit board, the circuit board can be according to temperature and pressure data direct control flap's aperture, and make full use of equipment has reduced the transmission node and the transmission distance of signal short, and reaction rate is fast, and is more reliable and more stable.

Description

Feedback regulation electronic expansion valve and evaporator integrated with same

Technical Field

The utility model belongs to heat management system equipment field relates to an electronic expansion valve is adjusted in feedback and integrated feedback's evaporimeter.

Background

The heat management system generally comprises four necessary components of a compressor, an electronic expansion valve, an evaporator and a condenser, and optional components such as a dry filter, a liquid sight glass, an oil separator, a gas-liquid separator and the like.

Currently, the electronic expansion valve is generally connected with the evaporator through a pipeline; the evaporator is welded with an aluminum fixed block, and a valve body of the electronic expansion valve is fixed on the fixed block through a screw, so that the integration of the electronic expansion valve and the evaporator is realized.

The electronic expansion valve is generally controlled by a stepping motor to regulate the flow of the refrigerant, and the electronic expansion valve is composed of a driver, an actuating mechanism, a throttling mechanism and other related auxiliary mechanisms. Wherein, the driver is usually a stepping motor, the actuating mechanism is usually a screw thread pair, and the throttling mechanism is usually a valve needle valve port. The stator coil of the stepping motor of the electronic expansion valve receives the pulse signal provided by the controller and drives the rotor magnetic ring to rotate. The rotor magnetic ring is integrated with the mandrel screw, the valve needle is integrated with the female thread, and the valve needle is driven to axially move up and down by the rotation of the rotor magnetic ring, so that the sizes of the through-flow sectional areas of the valve needle and the valve port are controlled, the adjustment of the refrigerating capacity is realized, and the refrigerating capacity is matched with the efficiency of the evaporator.

In the automobile industry, the trend of development of electronic expansion valves is to make electronic expansion valves electric and intelligent, and the electronic expansion valves are usually provided with circuit boards. At present, a pressure sensor and a temperature sensor are usually externally connected on a pipeline and are in signal connection with an upper computer. The upper computer receives signals of the pressure sensor and the temperature sensor and then sends control signals to a circuit board of the electronic expansion valve, and the circuit board of the electronic expansion valve is only used as an execution end of the upper computer to control the opening degree of the valve, so that equipment waste is caused. Meanwhile, the process of signal transmission is complex, the transmission path is long, the reaction speed is slow, and the risk of system errors is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide an evaporator for a feedback-regulated electronic expansion valve and an integrated feedback-regulated electronic expansion valve, which can detect the temperature and pressure values inside the expansion valve and directly transmit the signal to the circuit board of the electronic expansion valve.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the feedback regulation electronic expansion valve comprises a valve body, a circuit board, a temperature sensor and a pressure sensor, wherein the temperature sensor and the pressure sensor are fixedly arranged on the valve body, and the temperature sensor and the pressure sensor are in signal connection with the circuit board.

Optionally, a flow passage is arranged in the valve body in a penetrating manner, and the sensing end of the temperature sensor and the sensing end of the pressure sensor are both arranged in the flow passage of the valve body.

Optionally, the opening of runner one end is the module export, the opening of the runner other end is the module import, temperature sensor's response end reaches pressure sensor's response end all sets up the runner is close to in the one end of last module export.

Optionally, the upper module inlet and the upper module outlet are disposed on the same side of the valve body.

Optionally, the valve further comprises a valve seat, wherein a connecting threaded hole is formed in the valve body, a connecting thread matched with the connecting threaded hole is arranged on the valve seat, and the valve seat is arranged on the valve body through the connecting thread and the connecting threaded hole.

Optionally, a stepping motor stator coil is arranged on the valve seat, and the stepping motor stator coil is in signal connection with the circuit board.

Optionally, the mobile phone further comprises a circuit board mounting box, wherein the circuit board is arranged in the circuit board mounting box.

Optionally, the circuit board mounting box and the valve seat are disposed on the same side of the valve body.

Optionally, a rotor magnetic ring, a transmission thread pair, a valve needle, a valve port and a stop structure are arranged in the valve seat.

The evaporator integrated with the feedback regulation electronic expansion valve comprises an evaporator body and the feedback regulation electronic expansion valve, wherein a valve body of the feedback regulation electronic expansion valve is fixedly arranged on the evaporator body.

The beneficial effects of the utility model reside in that:

(1) the temperature sensor and the pressure sensor are in signal connection with the circuit board, the temperature sensor and the pressure sensor can directly transmit detected data to the circuit board, the circuit board can directly control the opening of the control valve according to the temperature and pressure data, equipment is fully utilized, signal transmission nodes are reduced, the transmission distance is short, the reaction speed is high, and the circuit board is more stable and reliable;

(2) the circuit board mounting box and the valve seat are arranged on the same side of the valve body, so that the structure of the valve body is simplified, the processing and the manufacturing are convenient, and the upper module inlet and the upper module outlet are arranged on the same side of the valve body, so that the pipeline connection and the installation are convenient;

(3) the valve body is directly and fixedly connected with the evaporator, so that connecting pipelines and fixing devices are reduced, the system volume is reduced, and the manufacturing cost is reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic perspective view of an evaporator with an integrated feedback-regulated electronic expansion valve;

FIG. 2 is a schematic diagram of the front side of an evaporator with an integrated feedback-regulated electronic expansion valve;

FIG. 3 is a schematic sectional view taken along the direction A-A.

Reference numerals: the evaporator comprises an evaporator body 1, a valve body 2, a circuit board 3, a temperature sensor 4, a pressure sensor 5, a flow channel 6, an upper module outlet 7, an upper module inlet 8, a valve seat 9, a stepping motor stator coil 10 and a circuit board mounting box 11.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1 to 3, an evaporator integrated with a feedback-adjusting electronic expansion valve includes an evaporator body 1 and further includes a feedback-adjusting electronic expansion valve. The feedback regulation electronic expansion valve comprises a valve body 2, a circuit board 3, a temperature sensor 4 and a pressure sensor 5, wherein the temperature sensor 4 and the pressure sensor 5 are fixed on the valve body 2, and the temperature sensor 4 and the pressure sensor 5 are in signal connection with the circuit board 3. The valve body 2 of the feedback regulation electronic expansion valve is welded on the evaporator body 1. The valve body 2 is directly and fixedly connected with the evaporator, so that connecting pipelines and fixing devices are reduced, the system volume is reduced, and the manufacturing cost is reduced.

In this embodiment, a flow channel 6 is arranged in the valve body 2 in a penetrating manner, an opening at one end of the flow channel 6 is an upper module outlet 7, an opening at the other end of the flow channel 6 is an upper module inlet 8, and a sensing end of the temperature sensor 4 and a sensing end of the pressure sensor 5 are both arranged in one end of the flow channel 6 close to the upper module outlet 7. The upper module inlet 8 and the upper module outlet 7 are arranged on the same side of the valve body 2, so that the pipelines can be conveniently connected and installed.

The feedback regulation electronic expansion valve further comprises a valve seat 9, a connecting threaded hole is formed in the valve body 2, a connecting thread matched with the connecting threaded hole is arranged on the valve seat 9, and the valve seat 9 is arranged on the valve body 2 through the connecting thread and the connecting threaded hole. The valve seat 9 is internally provided with a rotor magnetic ring, a transmission thread pair, a valve needle, a valve port and a stop structure. A stepping motor stator coil 10 is arranged on the valve seat 9, and the stepping motor stator coil 10 is in signal connection with the circuit board 3. The circuit board mounting box comprises a circuit board mounting box 11, and the circuit board 3 is arranged in the circuit board mounting box 11. The circuit board mounting box 11 and the valve seat 9 are arranged on the same side of the valve body 2, so that the structure of the valve body 2 is simplified, and the valve body is convenient to process and manufacture.

During the in-service use, temperature sensor 4 and pressure sensor 5 can directly transmit the data that detect for circuit board 3, and circuit board 3 can be according to temperature and pressure data output control signal to step motor stator coil 10, and the aperture of direct control valve has reduced the transmission node of signal when making full use of equipment, has reduced the transmission distance of signal, has increased electronic expansion valve's reaction rate, and is more reliable and more stable.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. Feedback control electronic expansion valve, its characterized in that: the temperature sensor reaches the pressure sensor is fixedly arranged on the valve body, and the temperature sensor reaches the pressure sensor and is in signal connection with the circuit board.

2. The feedback-regulated electronic expansion valve of claim 1, wherein: a flow channel is arranged in the valve body in a penetrating mode, and the sensing end of the temperature sensor and the sensing end of the pressure sensor are arranged in the flow channel of the valve body.

3. The feedback-regulated electronic expansion valve of claim 2, wherein: the opening of runner one end is the module export of going up, the opening of the runner other end is the module import of going up, temperature sensor's response end reaches pressure sensor's response end all sets up the runner is close to in the one end of going up the module export.

4. The feedback regulated electronic expansion valve of claim 3, wherein: the upper module inlet and the upper module outlet are arranged on the same side of the valve body.

5. The feedback-regulated electronic expansion valve of claim 1, wherein: the valve seat is provided with a connecting threaded hole, the valve seat is provided with connecting threads matched with the connecting threaded hole for use, and the valve seat is arranged on the valve body through the connecting threads and the connecting threaded hole.

6. The feedback regulated electronic expansion valve of claim 5, wherein: and a stator coil of the stepping motor is arranged on the valve seat and is in signal connection with the circuit board.

7. The feedback regulated electronic expansion valve of claim 5, wherein: the circuit board mounting box is characterized by further comprising a circuit board mounting box, wherein the circuit board is arranged in the circuit board mounting box.

8. The feedback regulated electronic expansion valve of claim 7, wherein: the circuit board mounting box and the valve seat are arranged on the same side of the valve body.

9. The feedback regulated electronic expansion valve of claim 5, wherein: and a rotor magnetic ring, a transmission thread pair, a valve needle, a valve port and a stop structure are arranged in the valve seat.

10. The evaporator of the integrated feedback regulation electronic expansion valve comprises an evaporator body and is characterized in that: further comprising a feedback regulating electronic expansion valve according to any of claims 1-9, a valve body of the feedback regulating electronic expansion valve being fixedly arranged on the evaporator body.