CN106322913B - An electrical control system for refrigeration equipment - Google Patents

Abstract

The present invention relates to refrigeration equipment electric-control systems, its main feature is that, including temperature sensor and controller；The temperature sensor is used to measure the temperature in refrigeration equipment；The controller receives the temperature information from temperature sensor；For the different cargos in refrigeration equipment, the booting of controller control refrigeration equipment inner compressor and the time difference for shutting down and obtaining downtime and available machine time, the time difference is compareed with preset referring to table, charging burden in refrigeration equipment is obtained.It solves to realize that intelligence knows the purpose of charging burden in refrigeration equipment by manually checking the defect of charging burden in refrigeration equipment in the prior art, mitigate human task amount, improve working efficiency.

Description

An electrical control system for refrigeration equipment

technical field

The invention relates to the technical field of refrigeration equipment, in particular to an electrical control system for refrigeration equipment.

Background technique

Refrigeration equipment, such as a commercial freezer, is a storage cabinet for food, medicine, beverages and other goods. It is generally set up at various sales points by manufacturers of food, medicine or beverages to facilitate customers to purchase. Refrigeration equipment is distributed in various places where people flow, but it is impossible to know the loading capacity of goods in the refrigeration equipment (such as empty, half-loaded or full, etc.). At present, the refrigeration equipment is generally known through manual inspection or phone calls from sales point personnel. The internal cargo loading capacity is low, and the intelligence is low, and it consumes manpower, resulting in waste of resources.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: to provide an electric control system for refrigeration equipment, which solves the defect of manually checking the cargo loading in the refrigeration equipment in the prior art, realizes the purpose of intelligently knowing the cargo loading in the refrigeration equipment, and reduces manual labor. task volume and improve work efficiency.

In order to solve the above technical problems, the present invention provides the following technical solutions to solve:

An electrical control system for refrigeration equipment, characterized in that it includes a temperature sensor and a controller; the temperature sensor is used to measure the temperature in the refrigeration equipment; the controller receives temperature information from the temperature sensor; For different goods, the controller controls the startup and shutdown of the compressor in the refrigeration equipment and obtains the time difference between the shutdown time and the startup time, and compares the time difference with a preset reference table to obtain the cargo loading in the refrigeration equipment.

Further, in order to facilitate the manufacturer's terminal to know the cargo loading in the refrigeration equipment, so as to replenish the goods in time and increase revenue, the electrical control system for the refrigeration equipment also includes a refrigeration equipment management terminal, and the controller wirelessly transmits the information about the cargo loading. Sent to the cooling equipment management terminal.

Further, in order to conveniently transmit the information of the cargo load to the backstage of the manufacturer, a Bluetooth or GPRS chip is integrated on the controller, and the controller communicates wirelessly with the refrigeration equipment management terminal through Bluetooth or GPRS.

In order to conveniently display the cargo loading in the refrigeration equipment, the controller includes a casing and a control panel arranged in the casing, and the controller further includes a display module, and the casing is provided with a display screen; the display module is communicatively connected with the control panel and Used to control the display to show the cargo load.

When the cooling speed is too slow, the controller sends out an alarm, the controller further includes an alarm module, and a horn is arranged on the casing; the alarm module is communicatively connected with the control board and is used to control the horn to alarm.

Further, the controller is an electronic temperature controller. The temperature sensor is arranged at the air return port of the refrigeration equipment.

Compared with the prior art, the advantages and beneficial effects of the electric control system for the refrigeration equipment of the present invention are: the temperature sensor senses the temperature in the refrigeration equipment, feeds back the temperature information to the controller, and the controller controls the startup and operation of the compressor according to the temperature information. Shut down and record the startup time and shutdown time. According to the time difference between the shutdown time and the startup time, the controller compares the time difference with the preset reference table to obtain the cargo load in the refrigeration equipment. The realization process does not require manual participation and realizes intelligence The purpose of obtaining the cargo load in the refrigeration equipment is to reduce the workload and improve the work efficiency; the electronic control system has a simple structure, is easy to implement, and reduces the manufacturing cost.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention or the prior art. Obviously, the drawings described below are For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a block diagram of an electrical control system for a refrigeration device of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

This embodiment provides an electrical control system for refrigeration equipment, through which the loading capacity of beverages and other goods in the refrigeration equipment can be obtained, thereby enabling the refrigeration equipment manufacturer to know the current cargo loading in the refrigeration equipment. As shown in FIG. 1 , the electrical control system for refrigeration equipment in this embodiment includes a temperature sensor 1 and a controller 2; the temperature sensor 1 is used to measure the temperature in the refrigeration equipment; the controller 2 receives temperature information from the temperature sensor 1; For different goods in the refrigeration equipment, the controller 1 controls the startup and shutdown of the compressor 4 in the refrigeration equipment and obtains the time difference between the shutdown time and the startup time, and compares the time difference with a preset reference table to obtain the cargo loading in the refrigeration equipment. In this embodiment, the controller 2 may be an electronic temperature controller, and the temperature sensor 1 may be disposed at the air return port of the refrigeration equipment.

Specifically, as shown in FIG. 1 , in this embodiment, different types of goods in the refrigeration equipment require different startup temperatures and different shutdown temperatures of the compressor 4 . For the same kind of cargo, if the loading capacity of the cargo in the refrigeration equipment is different, the temperature drop time required to reach the same shutdown temperature from the same start-up temperature is different. The larger the cargo load, the longer the temperature drop time. , the smaller the cargo loading, the shorter the temperature drop time, so the loading capacity of the cargo in the refrigeration equipment is obtained according to the temperature drop time measured by the temperature sensor 1. Of course, before each type of refrigeration equipment is put on the market, a large amount of test data will be measured in the laboratory6, that is, for the same cargo in the refrigeration equipment under different loadings (such as empty, half or full, etc.), different cargo loadings are obtained. Therefore, a series of temperature drop times are obtained for different goods in the refrigeration equipment under different loadings, and these test data 6 can be stored in the controller 2 as a reference table in advance.

In practice, it is assumed that a certain yogurt is stored in the refrigeration equipment A with no load, half load and full load, and it is assumed that the yogurt needs to be turned on at 6°C and stopped at 3°C, when the temperature sensor 1 detects the temperature in the refrigeration equipment When it reaches 6°C, the temperature signal is transmitted to the controller 2, and the controller 2 controls the compressor 4 to start cooling and records the current start-up time. Otherwise, the compressor 4 does not act; when the temperature sensor 1 detects that the temperature in the refrigeration equipment reaches 3 When the temperature is ℃, the temperature signal is transmitted to the controller 2, then the controller 2 controls the compressor 4 to stop and records the current shutdown time. Calculate the time difference between the shutdown time and the startup time, and obtain the no-load temperature drop time, half-load temperature drop time, and full-load temperature drop time, and store these temperature drop times to obtain a certain yogurt in refrigeration equipment A. No-load temperature drop time, half-load temperature drop-down time corresponding to half-load, and full-load temperature pull-down time corresponding to full load. For different goods stored in different models of refrigeration equipment, a series of no-load temperature drop times, half-load temperature drop times, and full-load temperature drop times are stored in the controller 2 as a reference table. The actual measured time difference between the shutdown time and the startup time of the compressor 4 is compared with the reference table to obtain the cargo load in the refrigeration equipment.

The cargo loading capacity in this embodiment can be empty, half-loaded, or fully loaded. Of course, other different levels of cargo loading can be set according to the actual situation, such as no-load, less-load, half-load, multi-load, or full-load, etc. different cargo loadings quantity.

Further, in order for the manufacturer to know the cargo loading in the refrigeration equipment in time and replenish the goods in time, the controller 2 can communicate the cargo loading information to the refrigeration equipment management terminal 5, which is convenient for arranging people to replenish the goods in time and increase the income. As shown in Figure 1, a Bluetooth or GPRS chip 7 can be integrated on the controller 2, and the controller 2 communicates with the refrigeration equipment management terminal 5 wirelessly through Bluetooth or GPRS, so that the controller 2 can wirelessly transmit the information of the cargo load to the refrigeration equipment management Terminal 5 is the host computer software in the backstage of the manufacturer. Alternatively, a remote monitoring application APP can be installed in the host computer of the refrigeration equipment management terminal 5 or the manufacturer's mobile phone, so that the cargo loading capacity of the refrigeration equipment can be known by viewing the APP, or the cargo loading capacity of the refrigeration equipment can be sent as a short message. sent to the manufacturer's mobile phone.

As shown in FIG. 1 , further, in order to facilitate the display of cargo loading in the refrigeration equipment, the controller 2 includes a casing (not shown) and a control panel 3 , and the controller 2 also includes a display module 8 , and the casing is provided with The display screen 9 displaying the cargo loading is controlled by the display module 8 , and the display module 8 is connected in communication with the control panel 3 for receiving the information about the cargo loading transmitted by the control panel 3 and displaying it on the display screen 9 .

When the cooling speed is too slow, the controller 2 issues an alarm to warn the cooling device that the cooling speed is too slow, which is convenient for the manufacturer to check the faulty cooling device. As shown in FIG. 1, the controller 2 is also provided with an alarm module 10, corresponding to , a horn 11 or a buzzer controlled by the alarm module 10 is arranged on the casing, and the alarm module 10 is connected in communication with the control board 3, for when the alarm module 10 sends out an alarm signal, the control board 3 controls the horn 11 or the buzzer to emit Beep to convey alarm information to staff.

For example, the controller 2 stores the no-load temperature drop time, half-load temperature drop time, and full-load temperature drop time as a reference table, and the time difference is the difference between the compressor 4 shutdown time and the startup time calculated by the controller 2. When the time difference > full load When the temperature drops time, it means that the cooling speed is too slow, the alarm module 10 sends an alarm signal, and the controller 2 controls the horn 11 or the buzzer to make a sound; when the time difference is basically equal to the full load temperature drop time, the controller 2 sends a full load message, indicating that the current The cargo loading is full; when the half-load temperature drops When the time difference is less than the full load temperature drop time, the controller 2 sends a half-load information, indicating that the current cargo loading is half-load; when the time difference is less than the half-load temperature drop time, the controller 2 sends no-load information, indicating that the current cargo loading is empty.

The advantages and beneficial effects of the electric control system for refrigeration equipment provided by the present invention are as follows: the temperature sensor 1 senses the temperature in the refrigeration equipment, and feeds back the temperature signal to the controller 2, and the controller 2 combines the temperature signal with the set start-up temperature and the Compare the shutdown temperature, control the startup and shutdown of the compressor 4, and record the startup time and shutdown time and store them in the storage unit of the controller 2. The controller 2 calculates the time difference between the shutdown time and the startup time, and compares the time difference with the preset time. Compare with the reference table to obtain the cargo loading in the refrigeration equipment. This realization process does not require manual participation, which reduces the workload of manual tasks and improves work efficiency; the controller 2 can wirelessly send the cargo loading to the refrigeration equipment through Bluetooth or GPRS in a timely manner. The management terminal 5 has a fast and accurate response, which is convenient for manufacturers to know the loading situation in the refrigeration equipment, replenish goods in time, improve replenishment efficiency, and increase revenue; and the electronic control system has a simple structure, is easy to implement, and reduces manufacturing costs.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. An electrical control system for refrigeration equipment, comprising a temperature sensor and a controller; the temperature sensor is used to measure the temperature in the refrigeration equipment; the controller receives temperature information from the temperature sensor; it is characterized in that, for the refrigeration equipment For different goods in the refrigerator, the controller controls the startup and shutdown of the compressor in the refrigeration equipment and obtains the time difference between the shutdown time and the startup time, and compares the time difference with a preset reference table to obtain the cargo loading in the refrigeration equipment. 2 . The electrical control system for refrigeration equipment according to claim 1 , further comprising a refrigeration equipment management terminal, wherein the controller wirelessly transmits the information about the cargo load to the refrigeration equipment management terminal. 3 . 3 . The electrical control system for refrigeration equipment according to claim 2 , wherein a bluetooth or GPRS chip is integrated on the controller, and the controller communicates wirelessly with the refrigeration equipment management terminal through bluetooth or GPRS. 4 . 4. The electrical control system for refrigeration equipment according to any one of claims 1-3, wherein the controller comprises a casing and a control board arranged in the casing, and the controller further comprises a display module, and the A display screen is arranged on the shell; the display module is connected in communication with the control board and is used to control the display screen to display the cargo load. 5 . The electric control system for refrigeration equipment according to claim 4 , wherein the controller further comprises an alarm module, and a horn is provided on the casing; the alarm module is communicatively connected to the control board and is used to control the horn. 6 . Call the police. 6 . The electrical control system for refrigeration equipment according to claim 1 , wherein the controller is an electronic temperature controller. 7 . 7 . The electrical control system for refrigeration equipment according to claim 1 , wherein the temperature sensor is arranged at the air return port of the refrigeration equipment. 8 .