CN107300283A - A kind of refrigerator cooling mechanism and its control method based on ultrasonic ranging - Google Patents
A kind of refrigerator cooling mechanism and its control method based on ultrasonic ranging Download PDFInfo
- Publication number
- CN107300283A CN107300283A CN201710563990.3A CN201710563990A CN107300283A CN 107300283 A CN107300283 A CN 107300283A CN 201710563990 A CN201710563990 A CN 201710563990A CN 107300283 A CN107300283 A CN 107300283A
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- Prior art keywords
- refrigerator
- fan
- cooling mechanism
- ultrasonic sensor
- wall
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention proposes a kind of refrigerator cooling mechanism and control method based on ultrasonic ranging, obtain the distance between refrigerator body back and both sides and wall respectively by ultrasonic sensor, the heat dissipation environment residing for refrigerator can be identified, and the heat dissipation environment regulation rotation speed of the fan according to residing for refrigerator, fan is avoided to work under fixed rotating speed, the energy consumption and noise of cooling mechanism are reduced, the intelligent level and practicality of cooling mechanism is improved.
Description
Technical field
Ultrasonic ranging refrigerator cooling mechanism is based on the invention belongs to refrigerator technical field of heat dissipation, more particularly to one kind
And control method.
Background technology
Existing refrigerator is all radiated using radiator, and one is disclosed in such as Chinese invention patent CN2639814Y
The cooling mechanism of refrigerator is planted, it includes the heat-pipe radiator and compressor installed in refrigerator body lower back, heat pipe dissipates
The side of hot device is provided with electric fan, to accelerate the radiating of radiator.The electric fan of this cooling mechanism is with one or more solid
Determine power and rotating speed is operated, it is impossible to according to the size of specific installation environment and heat-dissipating space the rotating speed of fan is carried out
Regulation.Although fan can improve radiating effect in itself, larger noise, and consumption electric power, the electric ice of increase can be brought
The power supply load of case, also the motor of fan in itself can also distribute heat, therefore the radiating of many refrigerators in the prior art
Mechanism eliminates electric fan to pursue complete muting function, it is also obvious that for the larger ice of refrigeration work consumption the drawbacks of such
The natural heat dissipation that case relies solely on fin can not meet demand.
Therefore, refrigerator design and installation personnel, it is realized that refrigerator back cooling mechanism in installation process with wall
It is necessary with certain distance.Chinese invention patent CN201615671U discloses a kind of refrigerator, and its refrigerator rear portion is set
Ultrasonic sensor, the distance for perceiving refrigerator rear portion and wall, it is ensured that radiating optimum distance.But only measure ice
Case rear portion to the distance of wall be inadequate.In actual installation process, user is often arranged on refrigerator at the turning of wall
Place, cause refrigerator sidepiece and wall distance it is also closer, in addition, refrigerator is also possible to be arranged on the furniture such as cabinet, locker
Side, the presence of these barriers all hinders the radiating of refrigerator, and refrigerator heat radiator fan of the prior art is according to pre-
Fixed power is operated, it is impossible to be adjusted according to actual radiating condition, the designer of current refrigerator cooling mechanism
Member does not recognize that the different installation environment of refrigerator is required the different of heat radiation power of cooling mechanism.Part refrigerator heat radiator
It is that rotation speed of the fan is adjusted according to the mode of the temperature feedback of cooling mechanism, but the control of this rotating speed has hysteresis quality,
If just improving rotating speed when temperature substantially rises, the performance of refrigerator can be influenceed.
The content of the invention
The present invention proposes a kind of refrigerator cooling mechanism, and it includes radiator and fan, and the radiator is arranged on refrigerator
Body lower back, the fan is arranged on the side of radiator.The air-flow that the fan is produced flows through the radiator and band
Walk heat.
The cooling mechanism also includes six ultrasonic sensors, and the ultrasonic sensor includes the first supersonic sensing
Device, the second ultrasonic sensor, the 3rd ultrasonic sensor, the 4th ultrasonic sensor, the 5th ultrasonic sensor, six surpass
Sonic sensor.Wherein described first ultrasonic sensor is arranged on refrigerator body upper back, second supersonic sensing
Device is arranged on refrigerator body lower back, and the 3rd ultrasonic sensor is arranged on above refrigerator body left side, and described the
Four ultrasonic sensors are arranged on below refrigerator body left side, and the 5th ultrasonic sensor is arranged on the right side of refrigerator body
Above portion, the 6th ultrasonic sensor is arranged on below right side.
Six ultrasonic sensors are used to measure refrigerator body to the distance of wall, and produce corresponding distance letter
Number, the cooling mechanism also includes control unit, and the distance signal of the ultrasonic sensor is sent to control unit, the control
Unit processed recognizes the installation environment of refrigerator from six distance signals received, and produces corresponding control signal, described
Control signal is sent to the fan and adjusts the rotating speed of fan.
The present invention also proposes a kind of control method of refrigerator cooling mechanism, and it is based on above-mentioned cooling mechanism, described the first to surpass
Sonic sensor measure refrigerator body upper back and wall apart from d1, second ultrasonic sensor measures refrigerator body
The distance above d2, the 3rd ultrasonic sensor measurement refrigerator body left side with wall of lower back and wall
With wall apart from d4 below d3, the 4th ultrasonic sensor measurement refrigerator body left side, the 5th ultrasonic wave is passed
With wall apart from d5 above sensor measurement refrigerator body right side, below the 6th ultrasonic sensor measurement right side with
Wall apart from d6.Described control unit determines fan control parameter D i according to above-mentioned di value, when i-th of ultrasonic sensor
It is measured apart from di be more than or equal to 1 meter when, Di is equal to 1, when the refrigerator body and wall measured by i-th of ultrasonic sensor
Body apart from di be less than 1 meter when, Di be equal to di, unit is rice.
Control unit calculates the rotating speed of fan with following equation：
Wherein, f is rotation speed of the fan；F is fan base rpm；P is compensating rotational speed；Di is fan control parameter；Ki be than
Example parameter.
By refrigerator cooling mechanism of the present invention based on ultrasonic ranging and control method, by obtaining refrigerator body respectively
The distance between back and both sides and wall, can identify the heat dissipation environment residing for refrigerator, and dissipating according to residing for refrigerator
Thermal environment adjusts rotation speed of the fan, it is to avoid fan is under fixed rotating speed and worked, and reduces the energy consumption and noise of cooling mechanism, carries
The high intelligent level and practicality of cooling mechanism.
Brief description of the drawings：
Fig. 1 is refrigerator back of the present invention schematic diagram；
Fig. 2 is refrigerator left side of the present invention schematic diagram；
Fig. 3 is refrigerator right side of the present invention schematic diagram；
Fig. 4 is the scheme of installation of refrigerator first (top view) of the present invention；
Fig. 5 is the scheme of installation of refrigerator second (top view) of the present invention；
Fig. 6 is the scheme of installation (top view) of refrigerator the 3rd of the present invention；
Fig. 7 is the scheme of installation (front view) of refrigerator the 4th of the present invention；
Embodiment
Technical scheme is further described with reference to specific embodiment.
In one embodiment, refrigerator cooling mechanism of the invention, as shown in figure 1, it includes radiator 2 and fan, institute
Radiator 2 is stated installed in the lower back of refrigerator body 1, the fan is arranged on the side (not shown) of radiator 2.The fan
The air-flow of generation flows through the radiator 2 and takes away heat.
The cooling mechanism also includes control unit (not shown) and 6 ultrasonic sensors, the ultrasonic sensor
Including the first ultrasonic sensor, the second ultrasonic sensor, the 3rd ultrasonic sensor, the 4th ultrasonic sensor, the 5th
Ultrasonic sensor, the 6th ultrasonic sensor.As shown in figure 1, wherein described first ultrasonic sensor 3 is arranged on refrigerator sheet
The upper back of body 1, second ultrasonic sensor 4 is arranged on the lower back of refrigerator body 1, as shown in Fig. 2 the described 3rd
The sensor of ultrasonic wave 5 is arranged on above the left side of refrigerator body 1, and the 4th ultrasonic sensor 6 is arranged on below left side,
As shown in figure 3, the 5th ultrasonic sensor 7 is arranged on above the right side of refrigerator body 1, the 6th ultrasonic sensor
8 are arranged on below the right side of refrigerator body 1.
It will be understood by those skilled in the art that refrigerator is as an approximate cuboid, the top refer to refrigerator back or
The top half of sidepiece rectangular surfaces, the lower section refers to the latter half of refrigerator back or sidepiece rectangular surfaces.Optional reality
Apply in example, be arranged on the ultrasonic sensor above back or sidepiece positioned at the top half of back or sidepiece rectangular surfaces
Geometric center, is arranged on the ultrasonic sensor below back or sidepiece and is located at back or the latter half of sidepiece rectangular surfaces
Geometric center.
Specifically, first ultrasonic sensor 3 is used to detect distance of the upper back of refrigerator body 1 apart from wall,
Second ultrasonic sensor 4 is used to detect distance of the lower back of refrigerator body 1 apart from wall, and the 3rd ultrasonic wave is passed
Sensor 5 is used to detect the distance above the left side of refrigerator body 1 apart from wall, and the 4th ultrasonic sensor 6 is used to detect
Apart from the distance of wall below the left side of refrigerator body 1, the 5th ultrasonic sensor 7 is used to detect the right side of refrigerator body 1
Apart from the distance of wall above portion, the 6th ultrasonic sensor 8 is used to detect below the right side of refrigerator body 1 apart from wall
Distance.Wall described herein not only includes wall, in addition to cabinet, furniture etc., and other are placed in beside refrigerator and influenceed
The side wall of the object of refrigerator radiating.By in this way, the present invention cooling mechanism can be comprehensive perceive refrigerator residing for
Heat dissipation environment.During actual installation, distance of the existing refrigerator requirement in installation process with wall at least above 10 centimetres,
And found in the test of the present inventor, when the distance of refrigerator back or sidepiece and wall is more than or equal to 1 meter, refrigerator radiating is made
Into influence it is smaller, therefore in the present invention, when the distance of acquiescence refrigerator back or sidepiece and wall is more than or equal to 1 meter equivalent to
Refrigerator back or sidepiece do not face wall, are further described below with specific installation situation.
In the first scheme of installation (Fig. 4), the back surface of refrigerator body 1 is to wall 9, wall and the back distance 20 of body 1
Centimetre, and the wall of the both sides of refrigerator body 1 is more than or equal to 1 meter of (not shown), this mounting means is the general common of refrigerator
Placement mode.First and second ultrasonic sensor measures the upper back of refrigerator body 1 and lower section and the distance of wall is
20 centimetres, the three, the four, the five, the 6th ultrasonic sensor measures the both sides of refrigerator body 1 and the distance of wall is more than
Or equal to 1 meter, six ultrasonic sensors are by distance signal transmission to control unit.Control unit passes through six ultrasonic waves
The distance signal of sensor judge the heat dissipation environment residing for refrigerator body 1, the i.e. upper back of refrigerator body 1, lower section and wall away from
From for 20 centimetres, and the upper and lower of the both sides of refrigerator body 1 does not face wall.Described control unit is according to the heat dissipation environment
Adjust rotation speed of the fan.In the present invention, the formula of rotation speed of the fan regulation is as follows：
Wherein, f is rotation speed of the fan, and it is less than or equal to fan maximum (top) speed Fmax；F is fan base rpm, i.e. refrigerator
The surrounding of body 1 do not have wall or wall distance be more than or equal to 1 meter when, fan maintain radiator normal working temperature when rotating speed,
Its value can determine that it sets initial value and is more than or equal to according to the heating power of refrigerator heat radiator and the heat dispersion of fan
Zero, and less than the maximum (top) speed Fmax of fan；P is compensating rotational speed, and its value is true according to fan cooling performance and maximum (top) speed Fmax
It is fixed；Di is fan control parameter, when the refrigerator body 1 measured by i-th of ultrasonic sensor is more than or waited apart from di with wall
When 1 meter, Di is equal to 1, when the refrigerator body 1 measured by i-th of ultrasonic sensor is less than 1 meter with wall apart from di,
Di is equal to di, and unit is rice；Ki is scale parameter, and its wall distance according to measured by i-th of ultrasonic sensor is to radiating
The influence degree of device work is set.
In this exemplary embodiment, Fmax=3000, F=1000, p=200, unit rev/min；
K2=2, K3=1,K5=1,And the wall measured according to six ultrasonic sensors is apart from di, D1=
0.2, D2=0.2, D3-D6 are equal to 1, and above-mentioned parameter is substituted into f calculation formula, f=1655.49 is obtained.
In the second scheme of installation (Fig. 5), the back of refrigerator body 1 and left side face wall 9, and wall is carried on the back with body 1
10 centimetres of portion's distance, the right side of refrigerator body 1 does not face wall, and this mounting means is common in the turning that refrigerator is placed in dining room
Place.The first, second, third and fourth ultrasonic sensor measures the upper and lower of the back of refrigerator body 1 and left side respectively
Distance with wall is 10 centimetres, and the five, the 6th ultrasonic sensor measures the distance of the right side of refrigerator body 1 and wall
More than or equal to 1 meter.The wall distance measured according to six ultrasonic sensors, D1-D4 is equal to 0.1, D5-D6 and is equal to
1, above-mentioned parameter is substituted into f calculation formula, f=2013.96 is obtained.
In the 3rd scheme of installation (Fig. 6), the back of refrigerator body 1 and left and right sides face wall 9, wherein left and right sides
Portion and wall distance are 10 centimetres, and back is 20 centimetres with wall distance, and this mounting means is common in refrigerator and is placed in wall
In the crack of wall and tall and big furniture.First, second ultrasonic sensor measures the upper back of refrigerator body 1 and lower section and wall
The distance of body is 20 centimetres, and the three, the four, the five, the 6th ultrasonic sensor is measured on the both sides of refrigerator body 1 respectively
The distance of lower section and wall is equal to 10 centimetres.The wall distance measured according to six ultrasonic sensors, D1-D2 is equal to 0.2,
D3-D6 is equal to 0.1, and above-mentioned parameter is substituted into f calculation formula, f=2331.46 is obtained.
In the 4th scheme of installation (Fig. 7), the back of refrigerator body 1 and left side face wall 9, wherein left side with
Wall distance is 10 centimetres, and back and wall distance are that wall is faced below 20 centimetres, the right side of body 1, its with wall away from
From for 10 centimetres, the right side of body 1 top is common in refrigerator and is placed in kitchen with not facing wall, this placement mode, wherein
Side is shorter cabinet.First, second ultrasonic sensor measures the upper back of refrigerator body 1 and lower section and wall
Distance is 20 centimetres, and described three, the 4th measure the distance of the left side upper and lower of refrigerator body 1 and wall equal to 10 centimetres, the
Five ultrasonic sensors measure top and the distance of wall on the right side of refrigerator and are more than or equal to 1 meter, and the 6th ultrasonic sensor is measured
Distance below right side with wall is equal to 10 centimetres.The wall distance measured according to six ultrasonic sensors, D1-D2 is equal to
0.2, D3, D4, D6 are equal to 0.1, D5 equal to 1, and above-mentioned parameter is substituted into f calculation formula, f=2133.46 is obtained.
In the above-described embodiments, control unit can be single-chip microcomputer, MCU or refrigerator micro computer, and described control unit passes through
The distance signal that six ultrasonic sensors are sent judges the heat dissipation environment residing for refrigerator body 1, i.e. refrigerator back upper and lower, a left side
The distance of right side upper and lower and wall, and corresponding rotation speed of the fan is calculated, produce corresponding control signal and fan is turned
Speed is controlled, and distance signal is sent to control unit by six ultrasonic sensors, the conversion of its signal and the meter of distance
Calculation belongs to state of the art, and the rotating speed control of fan is also prior art, then this is repeated no more.
The preferred embodiments of the disclosure is these are only, but protection scope of the present invention is not limited thereto, it is any
Those familiar with the art the invention discloses technical scope in, it is contemplated that change or replacement should all cover this
Within the protection domain of invention.
Claims (4)
1. a kind of refrigerator cooling mechanism based on ultrasonic ranging, it includes radiator and fan, and the radiator is arranged on ice
Case body lower back, the fan is arranged on the side of radiator, and the air-flow that the fan is produced flows through the radiator simultaneously
Take away heat；Characterized in that, the cooling mechanism also includes multiple ultrasonic sensors, the ultrasonic sensor is used to survey
Refrigerator body back and sidepiece are measured to the distance of wall, and produces corresponding distance signal；The cooling mechanism also includes control
Unit, the distance signal of the ultrasonic sensor is sent to control unit, described control unit according to receive it is described away from
Corresponding control signal is produced from signal, the control signal is sent to the fan and adjusts the rotating speed of fan.
2. refrigerator cooling mechanism as claimed in claim 1, it is characterised in that the ultrasonic sensor is six.
3. refrigerator cooling mechanism as claimed in claim 2, it is characterised in that be arranged on super above refrigerator back or sidepiece
Sonic sensor is located at the geometric center of the top half of back or sidepiece rectangular surfaces, is arranged on below back or sidepiece
Ultrasonic sensor is located at the geometric center of back or the latter half of sidepiece rectangular surfaces.
4. a kind of control method of refrigerator cooling mechanism as claimed in claim 1, it is characterised in that described control unit is received
The distance signal recognize the installation environment of refrigerator, and produce corresponding control signal, the control signal is sent to described
Fan and the rotating speed for adjusting fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563990.3A CN107300283A (en) | 2017-07-12 | 2017-07-12 | A kind of refrigerator cooling mechanism and its control method based on ultrasonic ranging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563990.3A CN107300283A (en) | 2017-07-12 | 2017-07-12 | A kind of refrigerator cooling mechanism and its control method based on ultrasonic ranging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107300283A true CN107300283A (en) | 2017-10-27 |
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ID=60134471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710563990.3A Pending CN107300283A (en) | 2017-07-12 | 2017-07-12 | A kind of refrigerator cooling mechanism and its control method based on ultrasonic ranging |
Country Status (1)
| Country | Link |
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| CN (1) | CN107300283A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042098A (en) * | 2001-07-27 | 2003-02-13 | Mitsubishi Electric Corp | Blower and refrigerator |
| CN201615671U (en) * | 2009-12-11 | 2010-10-27 | 泰州乐金电子冷机有限公司 | Refrigerator provided with distance perceiving device |
| CN103609206A (en) * | 2011-04-19 | 2014-02-26 | 力博特公司 | High efficiency cooling system |
| CN106352505A (en) * | 2016-10-31 | 2017-01-25 | 广东美的制冷设备有限公司 | Control method and control device of air conditioner, and air conditioner |
-
2017
- 2017-07-12 CN CN201710563990.3A patent/CN107300283A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042098A (en) * | 2001-07-27 | 2003-02-13 | Mitsubishi Electric Corp | Blower and refrigerator |
| CN201615671U (en) * | 2009-12-11 | 2010-10-27 | 泰州乐金电子冷机有限公司 | Refrigerator provided with distance perceiving device |
| CN103609206A (en) * | 2011-04-19 | 2014-02-26 | 力博特公司 | High efficiency cooling system |
| CN106352505A (en) * | 2016-10-31 | 2017-01-25 | 广东美的制冷设备有限公司 | Control method and control device of air conditioner, and air conditioner |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171027 |