CN218179285U

CN218179285U - Refrigerator with electronic expansion valve

Info

Publication number: CN218179285U
Application number: CN202222287601.8U
Authority: CN
Inventors: 罗屹东; 陈建
Original assignee: Zhongshan Shangfang Instrument Meter Co ltd
Current assignee: Zhongshan Shangfang Instrument Meter Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-12-30
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a refrigerator with an electronic expansion valve, which comprises a compressor, a refrigerant pipeline, an induction module and a main control module, wherein the refrigerant pipeline is connected with the compressor and is used for circulating a refrigerant; the sensing module is used for sensing temperature information and pressure information of a refrigerant in the compressor and is arranged in the compressor; the main control module is electrically connected with the induction module; the electronic expansion valve is arranged on the refrigerant pipeline and is electrically connected with the main control module; the main control module receives the temperature information and the pressure information to calculate the refrigerant flow of the electronic expansion valve and a corresponding opening value, and controls the opening of the electronic expansion valve according to the opening value to improve the refrigeration efficiency.

Description

Refrigerator with electronic expansion valve

Technical Field

The utility model relates to a refrigeration field, especially a refrigerator with electronic expansion valve.

Background

The refrigerator generally carries out refrigeration through a compressor, the compressor can compress a gas state of a refrigerant, the gas is compressed by the compressor to form a high-temperature high-pressure gas, the gas is cooled by a condenser to form a high-pressure medium-temperature gas or a gas-liquid coexisting state, the gas is rapidly cooled by an expansion valve to form a low-temperature low-pressure liquid, the temperature of the low-temperature liquid at this time is about sixteen degrees below zero, cold air is blown out through heat exchange of an evaporator to reduce the room temperature, the low-temperature low-pressure gas is converted to return to the compressor, and a cycle is completed, and the process is repeated; however, the flow opening of the common expansion valve is not easy to control, and the refrigeration efficiency is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a refrigerator with electronic expansion valve.

According to the utility model discloses refrigerator with electronic expansion valve, include: the refrigerant circulating system comprises a compressor and a refrigerant pipeline connected with the compressor and used for circulating a refrigerant; the sensing module is used for sensing temperature information and pressure information of a refrigerant in the compressor, and the sensing module is arranged in the compressor; the main control module is electrically connected with the induction module; the electronic expansion valve is arranged on the refrigerant pipeline and is electrically connected with the main control module; the main control module receives the temperature information and the pressure information to calculate the refrigerant flow of the electronic expansion valve and a corresponding opening value, and the main control module controls the opening of the electronic expansion valve according to the opening value.

According to the utility model discloses refrigerator with electronic expansion valve has following beneficial effect at least: the sensing module can sense the temperature information and the pressure information of the refrigerant in time, the main control module receives the temperature information and the pressure information, the refrigerant flow and the corresponding opening degree value of the electronic expansion valve are calculated, the main control module automatically controls the opening degree of the electronic expansion valve according to the opening degree value, and the refrigeration efficiency is improved.

According to the utility model discloses a some embodiments, the response module includes temperature sensor and pressure sensor, temperature sensor with pressure sensor respectively with the host system electricity is connected, and simple structure is convenient for gather the temperature information and the pressure information of refrigerant.

According to some embodiments of the utility model, including first interior machine and second interior machine, electronic expansion valve include with the first electronic expansion valve that first interior machine is connected and with the refrigeration of corresponding first interior machine and second interior machine is controlled respectively to the second electronic expansion valve that the second interior machine is connected, improves refrigeration efficiency.

According to some embodiments of the utility model, host system basis temperature information with pressure information calculates first electronic expansion valve's first refrigerant flow with second electronic expansion valve's second refrigerant flow and corresponding first opening value and second opening value, host system basis first opening value with second opening value control is corresponding first electronic expansion valve's aperture with second electronic expansion valve's aperture carries out accurate distribution to first electronic expansion valve and second electronic expansion valve's flow, improves the regulation precision, convenient to use.

According to some embodiments of the utility model, be equipped with wireless transmitting unit on the response module, the last wireless receiving unit that is equipped with of host system, the response module with host system wireless connection need not wired electricity and connects, improves the reliability to be convenient for change response module.

According to some embodiments of the utility model, include with the alarm module that the host system electricity is connected reminds the user unusual phenomenon.

According to some embodiments of the utility model, the alarm module includes buzzer BZ1 and diode D1, and buzzer BZ 1's positive pole and diode D1's cathode electricity are connected, buzzer BZ 1's negative pole respectively with diode D1's positive pole with the host system electricity is connected, simple structure, the realization of being convenient for.

According to the utility model discloses a some embodiments, include with the power module that the host system electricity is connected, power module includes rectifier bridge J1, electric capacity C2 and step-down transformer V1, and 12V's alternating current is input to rectifier bridge J1's input, rectifier bridge J1's output can output 12V direct current voltage and respectively with electric capacity C1's one end and step-down transformer V1's input electricity are connected, and step-down transformer V1's output is connected with electric capacity C2's one end and is connected with output 5V direct current voltage, and electric capacity C1's the other end, electric capacity C2's the other end and step-down transformer V1's earthing terminal ground connection respectively, simple structure is convenient for supply with 5V's operating voltage for other modules.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The following description will further describe the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 is a circuit block diagram of an embodiment of the present invention;

fig. 2 is a schematic view of a refrigeration system according to an embodiment of the present invention;

fig. 3 is a circuit structure diagram of the embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

Referring to fig. 1 to 3, a refrigerator with an electronic expansion valve according to an embodiment of the present invention includes: the system comprises a compressor 10, a refrigerant pipeline 11 connected with the compressor 10 and used for circulating a refrigerant, an induction module and a main control module 20; the sensing module is used for sensing temperature information and pressure information of the refrigerant in the compressor 10, and the sensing module is arranged in the compressor 10; the main control module 20 is electrically connected with the induction module; the electronic expansion valve is arranged on the refrigerant pipeline 11 and is electrically connected with the main control module 20; the main control module 20 receives the temperature information and the pressure information to calculate the refrigerant flow of the electronic expansion valve and a corresponding opening degree value, and the main control module 20 controls the opening degree of the electronic expansion valve according to the opening degree value to improve the refrigeration efficiency.

In some embodiments, the sensing module includes a temperature sensor 30 and a pressure sensor, and the temperature sensor 30 and the pressure sensor are respectively electrically connected to the main control module 20, so that the structure is simple, and the temperature information and the pressure information of the refrigerant can be conveniently collected.

As shown in fig. 3, the main control module 20 employs an HT66F chip, the temperature sensor 30 employs an MTS01 chip having a temperature measuring range of-70 ℃ to +150 ℃, an output end of the MTS01 chip is electrically connected to an input end of the HT66F chip, and the HT66F chip receives temperature information and pressure information to calculate a refrigerant flow and a corresponding opening value of the electronic expansion valve, and controls an opening of the electronic expansion valve according to the opening value, thereby improving the refrigeration efficiency.

As shown in fig. 2, in some embodiments, the electronic expansion valve includes a first internal machine and a second internal machine, the electronic expansion valve includes a first electronic expansion valve 41 connected to the first internal machine and a second electronic expansion valve 42 connected to the second internal machine, and the refrigeration of the corresponding first internal machine and the second internal machine is controlled respectively, so that the parallel control of multiple internal machines is realized, and the refrigeration efficiency is improved; one end of the first electronic expansion valve 41 and one end of the second electronic expansion valve 42 are respectively connected with the compressor through the refrigerant pipeline 11, the other end of the first electronic expansion valve 41 and the other end of the second electronic expansion valve 42 are respectively connected with one end of a throttle valve 12 arranged on the refrigerant pipeline 11, the other end of the throttle valve 12 is connected with a heat exchanger 13 through the refrigerant pipeline 11, the gas exchanged in the heat exchanger 13 continuously enters the compressor 10 through the refrigerant pipeline 11, and the refrigeration system performs circulating refrigeration in this way.

In some embodiments, the main control module 20 calculates a first refrigerant flow rate of the first electronic expansion valve 41, a second refrigerant flow rate of the second electronic expansion valve 42, and a corresponding first opening value and a corresponding second opening value according to the temperature information and the pressure information, and the main control module 20 controls the corresponding opening degree of the first electronic expansion valve 41 and the opening degree of the second electronic expansion valve 42 according to the first opening value and the second opening value, so as to accurately distribute the flow rates of the first electronic expansion valve and the second electronic expansion valve, thereby improving the adjustment accuracy and facilitating the use.

In some embodiments, the sensing module is provided with a wireless transmitting unit, the main control module 20 is provided with a wireless receiving unit, and the wireless transmitting unit and the wireless receiving unit can adopt bluetooth chips or WIFI chips, so that the sensing module is wirelessly connected with the main control module 20 without wired electrical connection, the reliability is improved, and the sensing module is convenient to replace.

In some embodiments, an alarm module 50 electrically connected to the main control module 20 is included for alerting a user of an abnormal phenomenon; the alarm module 50 comprises a buzzer BZ1 and a diode D1, the anode of the buzzer BZ1 is electrically connected with the cathode of the diode D1, the cathode of the buzzer BZ1 is respectively electrically connected with the anode of the diode D1 and the main control module, and the alarm module is simple in structure and convenient to implement.

In some embodiments, the power supply module 60 electrically connected to the main control module 20 is included, the power supply module 60 includes a rectifier bridge J1, a capacitor C2 and a voltage reducer V1, 12V ac is input to an input end of the rectifier bridge J1, an output end of the rectifier bridge J1 can output 12V dc voltage and is electrically connected to one end of the capacitor C1 and an input end of the voltage reducer V1, an output end of the voltage reducer V1 is connected to one end of the capacitor C2 to output 5V dc voltage, and the other end of the capacitor C1, the other end of the capacitor C2 and a ground end of the voltage reducer V1 are grounded respectively, so that the power supply module is simple in structure and is convenient for supplying 5V working voltage to other modules.

It is readily understood by those skilled in the art that the above-described preferred modes can be freely combined and superimposed without conflict.

The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A refrigerator having an electronic expansion valve, comprising:

a compressor (10) and a refrigerant pipe (11) connected to the compressor (10) for circulating a refrigerant;

the sensing module is used for sensing temperature information and pressure information of refrigerant in the compressor (10), and the sensing module is arranged in the compressor (10);

the main control module (20) is electrically connected with the induction module;

the electronic expansion valve is arranged on the refrigerant pipeline (11) and is electrically connected with the main control module (20); the main control module (20) receives the temperature information and the pressure information to calculate the refrigerant flow of the electronic expansion valve and a corresponding opening value, and the main control module (20) controls the opening of the electronic expansion valve according to the opening value.

2. A refrigerator having an electronic expansion valve according to claim 1, wherein: the induction module comprises a temperature sensor (30) and a pressure sensor, and the temperature sensor (30) and the pressure sensor are respectively electrically connected with the main control module (20).

3. A refrigerator having an electronic expansion valve according to claim 1, wherein: the electronic expansion valve comprises a first inner machine and a second inner machine, wherein the electronic expansion valve comprises a first electronic expansion valve (41) connected with the first inner machine and a second electronic expansion valve (42) connected with the second inner machine.

4. A refrigerator having an electronic expansion valve according to claim 3, wherein: the main control module (20) calculates a first refrigerant flow of the first electronic expansion valve (41), a second refrigerant flow of the second electronic expansion valve (42) and corresponding first and second opening values according to the temperature information and the pressure information, and the main control module (20) controls the corresponding opening degree of the first electronic expansion valve (41) and the opening degree of the second electronic expansion valve (42) according to the first and second opening values.

5. A refrigerator having an electronic expansion valve according to claim 1, wherein: the induction module is provided with a wireless sending unit, the main control module (20) is provided with a wireless receiving unit, and the induction module is in wireless connection with the main control module (20).

6. A refrigerator having an electronic expansion valve according to claim 1, wherein: comprises an alarm module (50) electrically connected with the main control module (20).

7. A refrigerator having an electronic expansion valve according to claim 6, wherein: the alarm module (50) comprises a buzzer BZ1 and a diode D1, the anode of the buzzer BZ1 is electrically connected with the cathode of the diode D1, and the cathode of the buzzer BZ1 is respectively electrically connected with the anode of the diode D1 and the main control module.

8. A refrigerator having an electronic expansion valve according to claim 1, wherein: the power supply module (60) is electrically connected with the main control module (20), the power supply module (60) comprises a rectifier bridge J1, a capacitor C2 and a voltage reducer V1, 12V alternating current is input into the input end of the rectifier bridge J1, 12V direct current voltage can be output from the output end of the rectifier bridge J1 and is respectively electrically connected with one end of the capacitor C1 and the input end of the voltage reducer V1, the output end of the voltage reducer V1 is connected with one end of the capacitor C2 to output 5V direct current voltage, and the other end of the capacitor C1, the other end of the capacitor C2 and the grounding end of the voltage reducer V1 are respectively grounded.