CN219572359U - Variable frequency refrigerating unit - Google Patents

Abstract

The utility model discloses a variable frequency refrigerating unit, which comprises: the refrigerator comprises a refrigerator body, wherein a storage space is arranged in the refrigerator body, and one side of the refrigerator body is provided with a refrigerator door which is rotationally connected with the refrigerator body; the refrigerating unit is used for refrigerating the storage space; the controller is used for controlling the starting up or stopping of the refrigerating unit; a door switch for detecting whether the garage door is opened or closed; the temperature controller is used for detecting and controlling the internal temperature of the storage space; wherein the controller is electrically connected with the door switch and the temperature controller. Through the design of variable frequency compressor, at first with high-power refrigeration, it is nearly stable to set for, reduces operating frequency again, and output reduces, can practice thrift the electric power, through setting up door switch, can close evaporation fan when opening the door, cold air and hot air exchange when avoiding it to open the door lead to temperature variation too big.

Description

Variable frequency refrigerating unit

Technical Field

The utility model relates to the technical field of refrigerating units, in particular to a variable frequency refrigerating unit.

Background

The traditional refrigerating unit generally adopts a fixed-frequency compressor, the power of the fixed-frequency compressor is constant, the output refrigerating capacity is also constant, the running speed of the fixed-frequency compressor is also fixed, the fixed-frequency compressor cannot be flexibly adjusted according to actual requirements, the consumed power of the fixed-frequency compressor is also more, and the power resource is wasted; when the door of the refrigeration house is opened, the cold air in the refrigeration house can exchange heat with the external hot air, so that the temperature in the refrigeration house is too high, and the quality of products in the storage space is affected; based on the above, a variable frequency refrigerating unit is designed.

Disclosure of Invention

In order to overcome at least one of the defects described in the prior art, the utility model provides a variable frequency refrigerating unit. Through the design of variable frequency compressor, through pressure sensor and temperature sensor's design, the compressor is at first refrigerated with high-power, and it is nearly stable to set for, reduces operating frequency again, and output reduces, can practice thrift the electric power, through setting up door switch, can close evaporation fan when opening the door, and cold air and hot air exchange lead to temperature variation too big when avoiding it to open the door.

The utility model adopts the technical proposal for solving the problems that:

a variable frequency refrigeration unit comprising: the refrigerator comprises a refrigerator body, wherein a storage space is arranged in the refrigerator body, and one side of the refrigerator body is provided with a refrigerator door which is rotationally connected with the refrigerator body; the refrigerating unit is used for refrigerating the storage space; the controller is used for controlling the starting up or stopping of the refrigerating unit; a door switch for detecting whether the garage door is opened or closed; the temperature controller is used for detecting and controlling the internal temperature of the storage space; wherein the controller is electrically connected with the door switch and the temperature controller.

Through adopting above-mentioned scheme, can refrigerate the freezer through refrigerating unit design, realize intelligent operation through the design of controller, temperature controller, reduce personnel's participation, can automatically refrigerate or start and stop.

Further, the refrigerating unit comprises a compressor, an evaporator, a condenser, an evaporation fan for radiating the evaporator and a condensation fan for radiating the condenser, wherein the compressor, the condenser and the evaporator are communicated through pipelines.

Through adopting above-mentioned scheme, through the design realization of refrigerating unit to the inside refrigeration operation of freezer.

Further, the compressor adopts a variable frequency compressor, and the evaporation fan adopts a variable speed fan.

By adopting the scheme, the operation frequency can be adjusted through the variable frequency compressor, the number of times of neglecting starting and stopping is reduced, and the large-scale energy saving is realized.

Further, be connected with display screen and temperature sensor on the temperature controller, temperature sensor is used for monitoring storing space inside temperature, the display screen is used for showing temperature data that temperature sensor detected.

Through adopting above-mentioned scheme, can real-time supervision storing space inside temperature through temperature sensor, can see temperature data in real time through the display screen moreover.

Further, the refrigerating unit further comprises an electronic expansion valve, and the electronic expansion valve is used for receiving the instruction sent by the controller and adjusting the opening according to the instruction.

Through adopting above-mentioned scheme, through the design of electronic expansion valve, when the heat of evaporimeter increases, the adjustment increases the aperture, convenient heat dissipation.

Further, a pressure sensor for detecting the outlet pressure of the compressor is arranged on the compressor.

By adopting the scheme, the pressure condition at the compressor can be monitored.

Further, the controller is electrically connected with the compressor, the evaporating fan, the temperature sensor, the display screen, the electronic expansion valve and the pressure sensor.

By adopting the scheme, intelligent control is realized.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present utility model;

fig. 2 is a schematic block diagram of embodiment 1 of the present utility model.

Wherein the reference numerals have the following meanings: 1. a cold storage; 2. a refrigerating unit; 21. a compressor; 22. an electronic expansion valve; 23. a condenser; 24. an evaporation fan; 25. a condensing fan; 3. a controller; 4. a garage door; 5. a door switch; 6. a temperature controller; 7. a display screen; 8. a temperature sensor; 9. a pressure sensor.

Detailed Description

For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described and discussed below in conjunction with the accompanying drawings, and it is apparent that what is described herein is only a part, but not all, of the examples of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

For the purpose of facilitating an understanding of the embodiments of the present utility model, reference will now be made to the drawings, by way of example, of specific embodiments, and the various embodiments should not be construed to limit the embodiments of the utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1-2, embodiment 1 of the present utility model discloses a variable frequency refrigerating unit 2: comprising the following steps: the refrigerator comprises a refrigerator 1, wherein a storage space is arranged in the refrigerator 1, and one side of the refrigerator 1 is provided with a refrigerator door 4 which is rotationally connected with the refrigerator 1; the refrigerating unit 2 is used for refrigerating the storage space; the controller 3 is used for controlling the starting up or stopping of the refrigerating unit 2; a door switch 5, the door switch 5 being used to detect whether the garage door 4 is open or closed; the temperature controller 6, temperature controller 6 is used for detecting and controlling the inside temperature of storing space. Realize the refrigeration operation to freezer 1 through refrigerating unit 2, realize intelligent operation through controller 3 and temperature controller 6, can realize that bin door 4 opens through door switch 5, evaporation fan 24 stopped effect, avoid in freezer 1 cold air can carry out a large amount of heat exchanges with external hot air, lead to freezer 1 in refrigeration effect variation.

In this embodiment, the refrigerating unit 2 may be disposed on the top of the refrigerator 1, i.e., the overhead refrigerating unit 2.

Wherein, controller 3 AND gate switch 5, temperature controller 6 electric connection can set for the required temperature parameter of storing space through temperature controller 6, and it is convenient to set for.

The refrigerating unit 2 comprises a compressor 21, an evaporator, a condenser 23, an electronic expansion valve 22, an evaporating fan 24 and a condensing fan 25, wherein the evaporating fan 24 is used for radiating heat of the evaporator, and the condensing fan 25 is used for radiating heat of the condenser 23, and the compressor 21, the condenser 23 and the evaporator are communicated through pipelines.

The electronic expansion valve 22 is configured to receive an instruction sent by the controller 3, adjust an opening according to the instruction, and adjust the opening when the heat of the evaporator increases, so as to facilitate heat dissipation.

In this embodiment, the compressor 21 is a variable frequency compressor 21, and the evaporation fan 24 is a variable speed fan. The frequency of operation can be adjusted through the variable frequency compressor 21, the number of times of neglected starting and stopping is reduced, and great energy conservation is realized; the variable speed fan can realize the variable speed effect according to the temperature change in the refrigeration house 1, and realizes the constancy of the temperature in the refrigeration house 1.

The temperature controller 6 is connected with a display screen 7 and a temperature sensor 8, the temperature sensor 8 is used for monitoring the internal temperature of the storage space, the display screen 7 is used for displaying the temperature data detected by the temperature sensor 8, the internal temperature of the storage space can be monitored in real time through the temperature sensor 8, and the temperature data can be seen in real time through the display screen 7.

In this embodiment, temperature sensor 8 can set up on the inside wall of storing space, display screen 7 can set up on the freezer 1 lateral wall, and display screen 7 places and conveniently observes on freezer 1 lateral wall, and temperature sensor 8 is inside convenient the detecting of storing space.

The compressor 21 is provided with a pressure sensor 9 for detecting the outlet pressure of the compressor 21. The pressure conditions at the compressor 21 may be monitored.

The controller 3 is electrically connected with the compressor 21, the evaporating fan 24, the temperature sensor 8, the display screen 7, the electronic expansion valve 22 and the pressure sensor 9, so that intelligent control is realized.

The working principle and the steps of the utility model are as follows: when the temperature sensor 8 is used, the temperature inside the storage space can be monitored, the display screen 7 can display temperature data inside the storage space, when the internal temperature exceeds the preset temperature of the temperature controller 6, the controller 3 knows the signal and controls the evaporation fan 24 to adjust speed change, so that the temperature inside the storage space is stable, and the controller 3 can also control the electronic expansion valve 22 to increase the opening degree, thereby facilitating heat dissipation; the door switch 5 can monitor whether the refrigerator door 4 is opened, when the refrigerator door 4 is opened, the door switch 5 monitors and transmits a signal to the controller 3, and the controller 3 controls the evaporation fan 24 to stop working, so that the phenomenon that the temperature difference is overlarge due to the heat air exchange between the inside of the refrigerator 1 and the outside of the refrigerator 1 is avoided; the pressure sensor 9 can measure the suction pressure of the compressor 21 and transmit signals to the controller 3, and the controller 3 can control the compressor 21 to reduce the running frequency, so that the aims of accurate temperature control and energy saving can be achieved.

In embodiment 2 of the present utility model, the refrigerator set 2 may be disposed at one side of the refrigerator 1, that is, the side refrigerator set 2, which has a wider application scenario.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (7)

1. Variable frequency refrigeration unit (2), characterized in that it comprises:

the refrigerator comprises a refrigerator (1), wherein a storage space is arranged in the refrigerator (1), and one side of the refrigerator (1) is provided with a refrigerator door (4) which is rotationally connected with the refrigerator (1);

the refrigerating unit (2) is used for refrigerating the storage space;

the controller (3) is used for controlling the starting up or stopping of the refrigerating unit (2);

a door switch (5), the door switch (5) being used to detect whether the garage door (4) is open or closed;

the temperature controller (6) is used for detecting and controlling the internal temperature of the storage space;

wherein the controller (3) is electrically connected with the door switch (5) and the temperature controller (6).

2. Variable frequency refrigeration unit (2) as claimed in claim 1, characterized in that the refrigeration unit (2) comprises a compressor (21), an evaporator, a condenser (23), an evaporation fan (24) for heat dissipation of the evaporator and a condensation fan (25) for heat dissipation of the condenser (23), the compressor (21), the condenser (23) and the evaporator being in communication via pipes.

3. Variable frequency refrigeration unit (2) as set forth in claim 2, wherein said compressor (21) is a variable frequency compressor (21) and said evaporating fan (24) is a variable speed fan.

4. A variable frequency refrigerating unit (2) according to claim 3, wherein the temperature controller (6) is connected with a display screen (7) and a temperature sensor (8), the temperature sensor (8) is used for monitoring the internal temperature of the storage space, and the display screen (7) is used for displaying temperature data detected by the temperature sensor (8).

5. A variable frequency refrigeration unit (2) as set forth in claim 4 wherein said refrigeration unit (2) further comprises an electronic expansion valve (22), said electronic expansion valve (22) being configured to receive a command sent by said controller (3) and to adjust the opening in response to the command.

6. Variable frequency refrigeration unit (2) as claimed in claim 5, characterized in that said compressor (21) is provided with a pressure sensor (9) for detecting the outlet pressure of the compressor (21).

7. A variable frequency refrigeration unit (2) as set forth in claim 6 wherein said controller (3) is electrically connected to a compressor (21), an evaporating fan (24), a temperature sensor (8), a display screen (7), an electronic expansion valve (22), and a pressure sensor (9).