CN216300712U - Air curtain adjusting structure and refrigerator car - Google Patents
Air curtain adjusting structure and refrigerator car Download PDFInfo
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- CN216300712U CN216300712U CN202123185967.6U CN202123185967U CN216300712U CN 216300712 U CN216300712 U CN 216300712U CN 202123185967 U CN202123185967 U CN 202123185967U CN 216300712 U CN216300712 U CN 216300712U
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- port
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- 238000004378 air conditioning Methods 0.000 claims abstract description 4
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model provides an air curtain adjusting structure and a refrigerator car, wherein the air curtain adjusting structure comprises: the air conditioning unit comprises a unit shell, a fresh air inlet, an air curtain port, a heat exchanger, an adjusting device and a fan, wherein the fresh air inlet and the air curtain port are arranged on the unit shell; when the air curtain adjusting structure is in an air curtain state, the adjusting device is connected with the fan and the air curtain port and separates the fan and the heat exchanger; when the air curtain adjusting structure is in a heat exchange state, the adjusting device is connected with the fan and the fresh air port and separates the fan and the air curtain port. According to the air curtain adjusting structure and the refrigerator car, the air outlet direction of the inner machine can be controlled by detecting the door opening and closing signal, so that whether an air curtain exists or not is controlled; the power of the internal fan can be adjusted by detecting the humidity change in the box body caused by the natural wind blowing into the box body, the wind pressure of the formed wind curtain is increased, and the natural wind entering is reduced; the refrigerating unit integrates the air curtain function.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to an air curtain adjusting structure suitable for a top-outlet refrigerator car and the refrigerator car.
Background
The refrigerator is firstly opened for precooling before a door of a traditional refrigerator car is opened for loading, and when a refrigerating unit is shut down after precooling is completed and then the door is opened for loading and unloading goods, but after the door is opened, due to the temperature difference and pressure difference of air inside and outside the compartment body, external damp and hot air easily enters the compartment body and then encounters cold, condensed water is formed on the inner wall of the compartment and the loaded goods, so that the problems of goods package damage, food bacterial pollution, rot and the like are caused, and meanwhile, the temperature inside the compartment body is increased, so that the energy consumption of the refrigerating unit is increased; this problem occurs frequently even in the case of a door which is frequently opened during transportation or when a load or unload is carried to a destination.
In the prior art, a patent discloses that an air curtain machine is installed in addition above refrigerator car back door and is realized the isolated of the inside and outside air of railway carriage after opening the door, but this patent does not consider the problem that natural wind blows in the railway carriage body the description such as, thereby also does not have the description that detects the signal of closing the door and stop the air curtain machine operation, can lead to the air curtain machine to last the operation power consumption too high like this, and this patent increases the use cost of whole car in addition specially also.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air curtain adjusting structure particularly suitable for a top-air-out type refrigerator car and the refrigerator car, aiming at solving the technical problems that in the prior art, an air curtain structure is complex and the air curtain and the heat exchange state cannot be switched according to the door opening and closing condition, wherein the air curtain structure is used for preventing external hot and humid air from entering a compartment body and generating condensed water when meeting cold when the refrigerator car is opened in a precooling refrigeration or loading and unloading state.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides an air curtain adjusting structure, which comprises: the air conditioning unit comprises a unit shell, a fresh air inlet, an air curtain port, a heat exchanger, an adjusting device and a fan, wherein the fresh air inlet and the air curtain port are arranged on the unit shell;
when the air curtain adjusting structure is in an air curtain state, the adjusting device is connected with the fan and the air curtain port and separates the fan and the heat exchanger;
when the air curtain adjusting structure is in a heat exchange state, the adjusting device is connected with the fan and the fresh air port and separates the fan and the air curtain port.
Further, the adjusting device includes:
the air deflector is rotatably arranged in the unit shell and used for partitioning the unit shell into a fresh air duct communicated with the fresh air port and an air curtain duct communicated with the air curtain port;
and the power mechanism is used for driving the air deflector to rotate and enabling the fan to be connected into the air curtain air duct or the fresh air duct.
Furthermore, a fresh air port is arranged at one end of the unit shell, an air curtain port is arranged at the bottom of the other end of the unit shell, and the fan is arranged at the bottom of the unit shell;
when the air deflector rotates to the rear end to abut against the top of the unit shell and the front end abuts against the bottom of the unit shell, the fan is connected into the air curtain air duct, and the air curtain adjusting structure is in an air curtain state;
when the air deflector rotates to the position that the rear end of the air deflector abuts against the bottom of the unit shell and the front end of the air deflector abuts against the top of the unit shell, the fan is connected into the fresh air duct, and the air curtain adjusting structure is in a heat exchange state.
Further, the power mechanism comprises:
the wind guide motor is arranged on the unit shell, the wind guide plate is fixedly arranged on an output shaft of the wind guide motor, and the output shaft is parallel to the horizontal plane and used for driving the wind guide plate to rotate around the output shaft.
Preferably, the fan is arranged at the bottom of the unit shell and faces the air guide plate, and comprises a driver, an air guide motor connected with the driver and fan blades connected with an output shaft of the air guide motor.
The utility model also provides a refrigerator car, which comprises a carriage body, an inner machine and an outer machine, wherein the inner machine and the outer machine are respectively and correspondingly arranged inside and outside the car body, the inner machine adopts the air curtain adjusting structure, and the heat exchanger adopts an evaporator.
Further, the rear end of the railway carriage or compartment body is equipped with a body, and the internal top rear end of railway carriage or compartment is located to air curtain adjustment structure, and unit housing rear end is close to the rear end of the railway carriage or compartment body, still includes: the controller is arranged in the outer machine, the door opening and closing sensors are arranged on two sides of the door body, and the humidity sensor is arranged at the bottom in the compartment body; the controller controls the adjusting device to set the air curtain adjusting structure into an air curtain state or a heat exchange state according to the opening and closing conditions of the door body.
The utility model also provides a refrigerator car air curtain control method, which applies the refrigerator car and comprises the following steps:
detecting whether the door body is opened;
and controlling the adjusting device to set the air curtain adjusting structure into an air curtain state or a heat exchange state according to the opening and closing conditions of the door body.
Further, controlling the adjusting device to set the air curtain adjusting structure into an air curtain state or a heat exchange state according to the opening and closing condition of the door body comprises:
if the door body is opened, the air curtain adjusting structure is set to be in an air curtain state until the door body is detected to be closed;
if the door body is closed, the air curtain adjusting structure is set to be in a heat exchange state, the refrigerating unit is started to refrigerate until the temperature in the compartment body reaches the precooling target temperature, and meanwhile, the humidity sensor in the compartment body detects the humidity Ha in the compartment body.
Further, if the door body is opened, the air curtain adjusting structure is set to be in an air curtain state and then the air curtain adjusting structure further comprises:
counting the total time T that the real-time humidity H in the compartment is greater than the humidity Ha in the compartment;
judging whether the total duration T is greater than or equal to a critical duration T0;
if so, increasing the running frequency V of the fan;
and if not, returning to continuously detect the real-time humidity H in the compartment body.
Compared with the prior art, the air curtain adjusting structure and the refrigerator car provided by the utility model can control the air outlet direction of the inner machine by detecting the door opening and closing signals, so as to control the existence of the air curtain; the power of an internal fan can be adjusted by detecting the wind pressure of natural wind blown into the compartment body, the wind pressure of a formed wind curtain is increased, and the natural wind is reduced; the refrigerating unit integrates the air curtain function; the problem that the refrigerator unit consumes large energy due to heat exchange inside and outside the carriage body after the refrigerator car opens the door is solved; the problems of package damage, food pollution, decay damage, dust and mosquito entering caused by the fact that moist and hot air enters the compartment body to form condensed water after the refrigerator car is opened are solved; the problem of traditional refrigerator car install air curtain machine additional and cause the cost too high is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural view of an air curtain adjustment structure according to an embodiment of the present invention;
FIG. 2 is a first schematic diagram illustrating a fan adjustment mechanism for a refrigerated vehicle according to an embodiment of the present invention;
FIG. 3 is a second schematic diagram of the fan adjustment mechanism of a refrigerator car according to an embodiment of the present invention;
fig. 4 is a block flow diagram of a method for controlling a pre-cooling of a refrigerator car according to an embodiment of the present invention.
Wherein, in the drawings, the reference numerals are mainly as follows:
1-an air curtain adjusting structure; 2-an external machine; 3-a door opening and closing sensor; 4-a humidity sensor; 10-air curtain port; 11-a wind guide motor; 12-a wind deflector; 13-a heat exchanger; 14-a fan; 15-a unit housing; 16-fresh air port.
Wherein, other labels in the figure:
a, setting the air curtain adjusting structure to be the position of an air deflector in a heat exchange state; and the B-air curtain adjusting structure is arranged at the position of the air deflector in the air curtain state.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the following will explain the principle and structure of the present invention in detail with reference to fig. 1-4 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, the present invention provides an air curtain adjusting structure 1, including: a unit housing 15, the unit housing 15 preferably being rectangular; the air conditioning unit further comprises a fresh air port 16 and an air curtain port 10 which are arranged on the unit shell 15, and a heat exchanger 13, an adjusting device and a fan 14 which are arranged between the fresh air port 16 and the air curtain port 10; when the air curtain adjusting structure 1 is in an air curtain state, the adjusting device is connected with the fan 14 and the air curtain port 10 and separates the heat exchanger 13; when the air curtain adjusting structure 1 is in a heat exchange state, the adjusting device is connected with the fan 14 and the fresh air port 16 and separates the air curtain port 10.
In this embodiment, the adjusting means comprises: the air deflector 12 is rotatably arranged in the unit shell 15 and separates the unit shell 15 into a fresh air duct communicated with a fresh air port 16 and an air curtain duct communicated with the air curtain port 10; and the power mechanism is used for driving the air deflector 12 to rotate and enabling the fan 14 to be connected into the air curtain air duct or the fresh air duct.
In this embodiment, one end of the unit housing 15 is provided with a fresh air inlet 16, and the bottom of the other end of the unit housing 15 is provided with an air curtain port 10, and the air curtain port 10 is preferably a side flow pressurized air duct port extending downwards and having a narrowed cross section; the fan 14 is arranged at the bottom of the unit shell 15; when the air deflector 12 rotates to the rear end thereof to abut against the top of the unit shell 15 and the front end thereof abuts against the bottom of the unit shell 15, the fan 14 is connected into the air curtain air duct, meanwhile, the air deflector 12 seals the fresh air duct, and the air curtain adjusting structure 1 is in an air curtain state; when the air deflector 12 rotates to a position where the rear end of the air deflector abuts against the bottom of the unit housing 15 and the front end of the air deflector abuts against the top of the unit housing 15, the fan 14 is connected to the fresh air duct, and meanwhile, the air deflector 12 seals the air curtain duct, and the air curtain adjusting structure 1 is in a heat exchange state.
In this embodiment, the power mechanism includes: the wind guide motor 11 is installed on the unit shell 15, the wind guide plate 12 is connected with an output shaft of the wind guide motor 11 through a rotating pivot shaft provided with sealing rubber or sponge which has the function of sealing an air duct at the periphery, the rotating pivot shaft is fixedly installed on the output shaft of the wind guide motor 11, and the output shaft is arranged in parallel to the horizontal plane and used for driving the wind guide plate 12 to rotate around the output shaft. In a preferred embodiment, the fan 14 is disposed at the bottom of the unit housing 15 opposite to the air guide plate 12, and includes a driver, an air guide motor 11 connected to the driver, and a blade connected to an output shaft of the air guide motor 11. In a preferred embodiment, the fan 14 is an axial fan 14.
The utility model also provides a refrigerator car, which comprises a car body, an inner machine and an outer machine 2 which are respectively and correspondingly arranged inside and outside the car body, wherein the inner machine adopts the air curtain adjusting structure 1, and the heat exchanger 13 adopts an evaporator. In this embodiment, the rear end of the carriage body is equipped with the door body with the same width as the internal machine, and the top rear end in the carriage body is located to air curtain adjustment structure 1, and the rear end of unit casing 15 is close to the rear end of the carriage body, still includes: the controller is arranged in the outer machine 2, the door opening and closing sensor 3 is arranged on two sides of the door body, and the humidity sensor 4 is arranged at the bottom in the compartment body; the controller controls the adjusting device to set the air curtain adjusting structure 1 to be in an air curtain state or a heat exchange state according to the opening and closing conditions of the door body.
Referring to fig. 4, the present invention further provides a method for controlling an air curtain of a refrigerator car, in which the refrigerator car includes the following steps:
detecting whether the door body is opened;
the adjusting device is controlled according to the opening and closing conditions of the door body to set the air curtain adjusting structure 1 to be in an air curtain state or a heat exchange state.
In this embodiment, controlling the adjusting device to set the air curtain adjusting structure 1 to the air curtain state or the heat exchange state according to the opening and closing condition of the door body includes:
if the door body is opened, judging that the refrigerator car is in a door opening loading and unloading mode or temporarily opened in a precooling refrigeration state, when the refrigerator car is temporarily opened in the precooling refrigeration state, controlling the air guide motor to rotate by the driver at the moment, driving the air guide plate to rotate to the position B, forming an air curtain, and setting the air curtain adjusting structure 1 to be in an air curtain state until the door body is detected to be closed;
if the door body is closed, the refrigerator car is judged to be in a door closing precooling refrigeration mode, the driver controls the air guide motor to rotate to drive the air guide plate to rotate to the position A, the air curtain adjusting structure 1 is set to be in a heat exchange state, the refrigerating unit is started to refrigerate until the temperature in the compartment body reaches a precooling target temperature, and meanwhile, the humidity sensor in the compartment body detects the humidity Ha in the compartment body and feeds the humidity Ha back to the controller.
As a preferred embodiment, when the refrigerator car is in the door opening and closing loading and unloading mode, if the door body is opened, the door opening and closing detector detects a door opening signal and feeds the door opening signal back to the controller, the controller controls the external unit to stop running and stop refrigerating, the driver controls the air guide motor to rotate, the air guide plate is driven to rotate to the position B, and the air curtain is formed. As a more preferred embodiment of the method,
the setting of the air curtain adjusting structure 1 to the air curtain state further includes:
the humidity sensor detects the real-time humidity H inside the compartment body and feeds back the real-time humidity H to the controller, and the controller counts the total time length T of H & gt Ha; the controller judges whether the total duration T is greater than or equal to a critical duration T0; if yes, the controller controls the operation frequency V of the fan 14 of the internal machine to be increased; if not, returning to continuously detect the real-time humidity H in the compartment body through the humidity sensor.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An air curtain adjusting structure comprising: the air conditioning unit is characterized by further comprising a fresh air port and an air curtain port which are arranged on the unit shell, and a heat exchanger, an adjusting device and a fan are arranged between the fresh air port and the air curtain port;
when the air curtain adjusting structure is in an air curtain state, the adjusting device is connected with the fan and the air curtain port and separates the fan and the heat exchanger;
when the air curtain adjusting structure is in a heat exchange state, the adjusting device is connected with the fan and the fresh air port and separates the fan and the air curtain port.
2. The air curtain adjusting structure as claimed in claim 1, wherein the adjusting means comprises:
the air deflector is rotatably arranged in the unit shell and used for partitioning the unit shell into a fresh air duct communicated with the fresh air port and an air curtain duct communicated with the air curtain port;
and the power mechanism is used for driving the air deflector to rotate and enabling the fan to be connected into the air curtain air duct or the fresh air duct.
3. The air curtain adjusting structure as claimed in claim 2, wherein:
the fresh air port is arranged at one end of the unit shell, the air curtain port is arranged at the bottom of the other end of the unit shell, and the fan is arranged at the bottom of the unit shell;
when the air deflector rotates to the position that the rear end of the air deflector abuts against the top of the unit shell and the front end of the air deflector abuts against the bottom of the unit shell, the fan is connected into the air curtain air duct, and the air curtain adjusting structure is in an air curtain state;
when the air deflector rotates to the position that the rear end of the air deflector abuts against the bottom of the unit shell and the front end of the air deflector abuts against the top of the unit shell, the fan is connected into the fresh air duct, and the air curtain adjusting structure is in a heat exchange state.
4. The air curtain adjusting structure as claimed in claim 2, wherein:
the power mechanism comprises:
the wind guide motor is arranged on the unit shell, the wind guide plate is fixedly arranged on an output shaft of the wind guide motor, and the output shaft is parallel to the horizontal plane and used for driving the wind guide plate to rotate around the output shaft.
5. The air curtain adjusting structure as claimed in claim 3, wherein: the fan is arranged at the bottom of the unit shell and is right opposite to the air guide plate, and the fan comprises a driver, an air guide motor connected with the driver and fan blades connected with an output shaft of the air guide motor.
6. A refrigerator car, including the railway carriage or compartment body, locate the internal machine and outer machine inside and outside the car body correspondingly respectively, characterized by that, the said internal machine has adopted the air curtain of any claim 1-5 to adjust the structure, the said heat exchanger adopts the evaporator.
7. A refrigerator car as claimed in claim 6, wherein the rear end of the compartment is provided with a door, the air curtain adjustment structure is provided at the rear end of the top portion of the compartment, and the rear end of the unit housing is close to the rear end of the compartment, further comprising: the controller is arranged in the outer machine, the door opening and closing sensors are arranged on two sides of the door body, and the humidity sensor is arranged at the bottom in the compartment body; the controller controls the adjusting device to set the air curtain adjusting structure into an air curtain state or a heat exchange state according to the opening and closing conditions of the door body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123185967.6U CN216300712U (en) | 2021-12-17 | 2021-12-17 | Air curtain adjusting structure and refrigerator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123185967.6U CN216300712U (en) | 2021-12-17 | 2021-12-17 | Air curtain adjusting structure and refrigerator car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216300712U true CN216300712U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123185967.6U Active CN216300712U (en) | 2021-12-17 | 2021-12-17 | Air curtain adjusting structure and refrigerator car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216300712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161906A (en) * | 2021-12-17 | 2022-03-11 | 珠海格力电器股份有限公司 | Air curtain adjusting structure, refrigerator car and refrigerator car air curtain control method |
-
2021
- 2021-12-17 CN CN202123185967.6U patent/CN216300712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161906A (en) * | 2021-12-17 | 2022-03-11 | 珠海格力电器股份有限公司 | Air curtain adjusting structure, refrigerator car and refrigerator car air curtain control method |
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