CN114413537A - Refrigerator and control scheme determination method thereof - Google Patents
Refrigerator and control scheme determination method thereof Download PDFInfo
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- CN114413537A CN114413537A CN202011171278.7A CN202011171278A CN114413537A CN 114413537 A CN114413537 A CN 114413537A CN 202011171278 A CN202011171278 A CN 202011171278A CN 114413537 A CN114413537 A CN 114413537A
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- signal identification
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- identification port
- main control
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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
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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
- F25D29/00—Arrangement or mounting of control or safety devices
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- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a refrigerator, which comprises a main control board and a refrigerator body, wherein the main control board is provided with an I/O interface, a GND pin and a signal identification port; the I/O interface on the main control board is connected with the signal identification port through a connecting wire, and a pull-up resistor is arranged on the connecting wire; the corresponding relation between the level state combination received by the I/O interface and the control scheme is preset in the main control board; the machine body is provided with a joint matched with the signal identification port; the inside of the joint is provided with a built-in connection wire; when the connector is matched with a signal identification port on the main control board, the built-in wiring enables the signal identification port to be suspended or enables the signal identification port to be in short circuit with a GND pin, the I/O interface receives a level state and obtains a level state combination, and the main control board determines a corresponding control scheme according to the level combination state; the main control board is suitable for refrigerators with different configurations, and has strong universality; the selection of the control scheme is completed through hardware setting, so that the limitation of software compatibility is avoided; in addition, the management difficulty and cost are reduced, and the purchase cost is saved.
Description
Technical Field
The invention belongs to the technical field of household refrigerators, and particularly relates to a refrigerator and a control scheme determining method thereof.
Background
At present, for refrigerator products with the same platform but slightly different electrical appliance configurations, a conventional method is to design special software, hardware, wiring harnesses and the like for each configuration, so that the versions of the software and the hardware are various, the difference between different versions is small, and great trouble is caused to fool-proofing in the production process of the refrigerator; meanwhile, after the models are increased, the purchase amount of the main control board of each model is uniformly shared, so that the purchase price of the main control board is increased.
In the current situation that the demand for the refrigerator product function differentiation in the current market is increased, the refrigerator product with differentiated configuration is bound to become a mainstream scheme.
The invention is provided in view of the above.
Disclosure of Invention
The invention provides a refrigerator aiming at the technical problems.
In order to achieve the purpose, the invention adopts the technical scheme that:
a refrigerator, comprising:
the main control board is provided with an I/O interface, a GND pin and a signal identification port; the I/O interface wiring is led out to the signal identification port, and a pull-up resistor is arranged on a connecting wire for connecting the I/O interface and the signal identification port; the main control board is internally preset with the corresponding relation between the level state combination received by the I/O interface and the control scheme;
the machine body is provided with a joint matched with the signal identification port; a built-in connection wire is arranged in the joint;
when the connector is matched with a signal identification port on the main control board, the built-in wiring enables the signal identification port to be suspended or enables the signal identification port to be in short circuit with a GND pin, the corresponding I/O interface receives a level state signal and obtains a level state combination, and the main control board determines a corresponding control scheme according to the level combination state.
Preferably, the main control board is provided with at least one I/O interface, which is sequentially marked as a first interface, a second interface, an … … I-th interface … … and an n-th interface, wherein n is greater than 0, and n is a positive integer;
the main control board is provided with a first signal identification port, a second signal identification port, … … ith signal identification port … … and nth signal identification port which correspond to the first interface, the second interface, … … ith interface … … and nth interface in sequence;
the machine body is provided with a first joint, a second joint, a … … th joint … … and an nth joint which are matched with the first signal identification port, the second signal identification port, the … … th signal identification port … … and the nth signal identification port in sequence;
when each connector on the machine body is matched with the signal identification port on the main control board, the n I/O interfaces receive level state signals to obtain a level state combination (E)1，E2，…… Ei……，En)。
Preferably, the level state is a high level or a low level.
Preferably, n of the level states received by the I/O interface have a value of 2nAnd (4) level state combination.
Preferably, 2nThe level state combination corresponds to 2nAnd (4) a control scheme.
Preferably, the main control board is provided with a connector connected with the I/O interface, and the signal identification port is arranged on the connector.
A refrigerator control scheme determining method implemented by the above refrigerator, the refrigerator control scheme determining method comprising:
the refrigerator is powered on, and each I/O interface receives a level state signal to obtain a level state combination (E)1，E2，……Ei……，En)；
According to the preset level combination state and control scheme corresponding relation, obtaining the obtained level state combination (E)1，E2，……Ei……，En) The corresponding control scheme;
and controlling the refrigerator to operate according to the determined control scheme.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a refrigerator, which comprises a main control board and a refrigerator body, wherein the main control board is provided with an I/O interface, a GND pin and a signal identification port; the I/O interface on the main control board is connected with the signal identification port through a connecting wire, and a pull-up resistor is arranged on the connecting wire; the corresponding relation between the level state combination received by the I/O interface and the control scheme is preset in the main control board; the machine body is provided with a joint matched with the signal identification port; the inside of the joint is provided with a built-in connection wire; when the connector is matched with a signal identification port on the main control board, the built-in wiring enables the signal identification port to be suspended or enables the signal identification port to be in short circuit with a GND pin, the I/O interface receives a level state and obtains a level state combination, and the main control board determines a corresponding control scheme according to the level combination state; the main control board is suitable for refrigerators with different configurations, and has strong universality; the selection of the control scheme is completed through hardware setting, so that the limitation of software compatibility is avoided; in addition, the management difficulty and cost are reduced, and the purchase cost is saved.
Drawings
Fig. 1 is a schematic diagram of a wiring harness connection manner of a main control board of a refrigerator according to the present invention;
FIG. 2 is a schematic diagram of another wiring harness connection mode of a main control panel of the refrigerator according to the present invention;
FIG. 3 is a schematic view of the refrigerator according to the present invention;
FIG. 4 is a schematic diagram of a refrigerator level status combination identification and control scheme according to the present invention;
fig. 5 is a flowchart of a control method of a refrigerator according to the present invention.
Detailed Description
The present invention is further described below in conjunction with specific examples to enable those skilled in the art to better understand the present invention and to practice it, but the scope of the present invention as claimed is not limited to the scope described in the specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
A refrigerator, as shown in fig. 1-3, comprising a main control panel and a body; an I/O interface and a GND pin are reserved on the main control board, and a connector is arranged on the main control board; the I/O interface wiring is led out to the connector, and a pull-up resistor is arranged on a connecting line for connecting the I/O interface and the connector. A signal identification port for identifying the signal is reserved on the connector; when the signal identification port is empty, the I/O interface receives a high-level signal through a pull-up resistor; when the signal identification port is short-circuited with the GND pin, the I/O interface receives a low level signal.
A connector matched with the signal identification port is arranged on the refrigerator body; the machine body is internally provided with a built-in connection wire which is hidden in the joint. When the connector is matched with the signal identification port on the main control board, the signal identification port is suspended or is in short circuit with the GND pin under the action of the built-in wiring. Namely, the suspension of the signal identification port on the main control board or the short circuit of the signal identification port and the GND pin mainly depends on the arrangement of the built-in wiring on the refrigerator body.
As shown in fig. 1, when the built-in connection is set to a mode, the connector is matched with the signal identification port, the built-in connection short-circuits the signal identification port with the GND pin, and then the I/O interface receives a low level signal. As shown in fig. 2, when the wiring is hidden in the body in another arrangement, the connector is matched with the signal identification port, and the signal identification port is suspended, then the I/O interface receives a high level signal.
As shown in fig. 3, the main control board is provided with at least one I/O interface, which is sequentially marked as a first interface, a second interface, an I-th interface … … of … …, and an n-th interface, where n is greater than 0, and n is a positive integer. Accordingly, the signal identification ports on the connectors corresponding to the first interface, the second interface, … …, the i-th interface … … and the n-th interface are denoted as a first signal identification port, a second signal identification port, … …, the i-th signal identification port … … and an n-th signal identification port.
Correspondingly, the refrigerator body is provided with a first joint, a second joint, … … the ith joint … … and the nth joint. When assembling, the first connector, the second connector, the … … ith connector … … and the nth connector on the refrigerator body are matched with the first signal identification port, the second signal identification port, the … … ith signal identification port … … and the nth signal identification port in sequence.
When a first connector, a second connector, an … … th connector … … and an nth connector on the refrigerator body are sequentially matched with a first signal identification port, a second signal identification port, a … … th signal identification port … … and an nth signal identification port, n I/O interfaces on the main control board all receive corresponding level state signals, the level state signals of the I/O interfaces directly indicate the level state, and the level state depends on the arrangement of the built-in wires of the connectors on the refrigerator body; specifically, when the connector is matched with the signal identification port and the built-in wiring is used for short-circuiting the signal identification port and the GND pin, the level state of the I/O interface corresponding to the signal identification port is low level; and when the connector is matched with the signal identification port and the signal identification port is suspended, the level state of the I/O interface corresponding to the signal identification port is high level. The level state signals received by each I/O interface are different because of different built-in wiring arrangements of the corresponding connectors.
As shown in fig. 4, the built-in wiring arrangement combinations of the plurality of connectors of the refrigerators in different configurations are different, so that after the connectors of the refrigerators in different configurations are matched with the signal identification ports of the main control board, the level state combinations received by the n I/O interfaces on the main control board are different. In this embodiment, the level states corresponding to the first terminal, the second terminal, and … … of the ith terminal … … and the nth terminal are sequentially denoted as E1，E2，……Ei……，EnIn which E1，E2，……Ei……，EnThere are two states, a low state and a high state. The combination of the level states received by the n I/O interfaces on the main control board is recorded as (E)1，E2，……Ei……，En)。
Presetting a level state combination of n I/O interfaces on a main control board corresponding to a control scheme; different level state combinations correspond to different control schemes. There are n I/O interfaces, which correspond to 2nThe combination of the electric level states is preset with 2 on the corresponding main control boardnAnd (4) a control scheme. If three I/O interfaces are provided, eight level state combinations (E) are formed correspondingly1，E2，E3) The control scheme comprises a first control scheme, a second control scheme, a third control scheme, a fourth control scheme, a fifth control scheme, a sixth control scheme, a seventh control scheme and an eighth control scheme. Where high and low represent level states. For example, when a refrigerator body of one configuration is connected with a main control panel to form a (high ) level state combination, the refrigerator is controlled by a control scheme; when the refrigerator body in another configuration is connected with the main control board to form a (low, high and low) level state combination, the refrigerator is controlled by a sixth control scheme.
In summary, the number of the I/O interfaces and the corresponding signal identification ports on the main control board is set according to the production requirement, so as to set the number of the specific control schemes that can be controlled by the main control board; the number of the signal identification ports is set to be in an exponential relation with the number of the control schemes which can be adopted by the main control board, and the purpose of adopting different control schemes for various configured refrigerators can be achieved by setting less number of the signal identification ports.
The n I/O interfaces of the main control board receive the level states, correspondingly form a level state combination, and correspondingly output a control scheme corresponding to the level state combination, such as the change of control parameters, the use condition of refrigerator load, the starting or stopping of a compressor or a fan or the rotation speed of the compressor or the fan, and the like.
The arrangement of the invention has the following beneficial effects:
(1) by arranging the concealed wiring of the refrigerator body, the main control board can be suitable for refrigerators with different concealed wiring arrangements and can match with a control scheme corresponding to the concealed wiring arrangement, so that the adaptability of the control scheme and the refrigerator configuration is enhanced; the same main control board can be suitable for the refrigerators with different configurations, and the universality of the main control board is improved;
(2) the invention sets up and finishes the interior wiring of the organism to presume in the production run of the refrigerator, namely after the refrigerator finishes assembling, the level state combination that a plurality of I/O interfaces receive while using on the refrigerator main control board has already been fixed, its corresponding control scheme has already been fixed. Although the same main control board is used for different refrigerators with different configurations, the control schemes are matched with the respective configurations, and the control schemes are different; the selection and the determination of the control schemes are completed through the hardware setting of the refrigerator, the self-compatible limitation of software is avoided, and the different control schemes are distinguished more visually.
(3) When the refrigerator is powered on and used, the control scheme can be determined and the logic control can be started only by directly acquiring the level state combination received by the I/O interface, so that the logic control program of the refrigerator is effectively simplified.
(4) The arrangement of the invention can reduce the differential arrangement of the hardware and the software of the main control board, effectively reduce the management difficulty, reduce the production and management cost, and can intensively purchase the main control board in batch to save the purchase cost;
(5) the refrigerator control panel can avoid assembly errors caused by mismatching of the type of the control panel and the configuration of the refrigerator in the production process of the refrigerator, improve the installation efficiency and effectively solve the fool-proof problem in the production process of the refrigerator.
A level state combination of n I/O interfaces on a preset main control board corresponds to a control scheme, and the level state combination and the control scheme are in a one-to-one mapping relation. A refrigerator control scheme determining method, as shown in fig. 5, includes the steps of:
s1: powering on the refrigerator, each I/O interface receiving the level state signal to form a level state combination (E)1，E2，……Ei……，En)；
S2: according to the preset level combination state and control scheme corresponding relation, obtaining level state combination (E)1，E2，……Ei……，En) The corresponding control scheme;
s3: and controlling the refrigerator to operate according to the determined control scheme.
In the refrigerator power-on use process, the refrigerator control scheme determining method can determine the control scheme and start logic control only by directly acquiring the level state combination received by the I/O interface, thereby effectively simplifying the logic control program of the refrigerator.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (7)
1. Refrigerator, characterized in that it comprises:
the main control board is provided with an I/O interface, a GND pin and a signal identification port; the I/O interface wiring is led out to the signal identification port, and a pull-up resistor is arranged on a connecting wire for connecting the I/O interface and the signal identification port; the main control board is internally preset with the corresponding relation between the level state combination received by the I/O interface and the control scheme;
the machine body is provided with a joint matched with the signal identification port; a built-in connection wire is arranged in the joint;
when the connector is matched with a signal identification port on the main control board, the built-in wiring enables the signal identification port to be suspended or enables the signal identification port to be in short circuit with a GND pin, the corresponding I/O interface receives a level state signal and obtains a level state combination, and the main control board determines a corresponding control scheme according to the level combination state.
2. The refrigerator according to claim 1, wherein: the main control board is provided with at least one I/O interface which is marked as a first interface, a second interface, an … … I interface … … and an n interface in sequence, wherein n is more than 0, and n is a positive integer;
the main control board is provided with a first signal identification port, a second signal identification port, … … ith signal identification port … … and nth signal identification port which correspond to the first interface, the second interface, … … ith interface … … and nth interface in sequence;
the machine body is provided with a first joint, a second joint, a … … th joint … … and an nth joint which are matched with the first signal identification port, the second signal identification port, the … … th signal identification port … … and the nth signal identification port in sequence;
when each connector on the machine body is matched with the signal identification port on the main control board, the n I/O interfaces receive level state signals to obtain a level state combination (E)1，E2，……Ei……，En)。
3. The refrigerator according to claim 1 or 2, characterized in that: the level state is high or low.
4. The refrigerator according to claim 3, wherein: n level states received by the I/O interface have 2nAnd (4) level state combination.
5. The refrigerator of claim 4, wherein: 2nThe level state combination corresponds to 2nAnd (4) a control scheme.
6. The refrigerator according to claim 1, wherein: the main control board is provided with a connector connected with the I/O interface, and the signal identification port is arranged on the connector.
7. A refrigerator control scheme determining method implemented by the refrigerator of any one of claims 1 to 6, characterized in that: the refrigerator control scheme determining method includes:
the refrigerator is powered on, and each I/O interface receives a level state signal to obtain a level state combination (E)1，E2，……Ei……，En)；
According to the preset level combination state and control scheme corresponding relation, obtaining the obtained level state combination (E)1，E2，……Ei……，En) The corresponding control scheme;
and controlling the refrigerator to operate according to the determined control scheme.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011171278.7A CN114413537A (en) | 2020-10-28 | 2020-10-28 | Refrigerator and control scheme determination method thereof |
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| CN202011171278.7A CN114413537A (en) | 2020-10-28 | 2020-10-28 | Refrigerator and control scheme determination method thereof |
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| CN106931717A (en) * | 2017-03-21 | 2017-07-07 | 合肥美的电冰箱有限公司 | Gear conversion equipment and refrigerating plant |
| JP2017228209A (en) * | 2016-06-24 | 2017-12-28 | 株式会社ノーリツ | Device and system for input/output control |
| US20200035289A1 (en) * | 2015-11-16 | 2020-01-30 | Toshiba Memory Corporation | Host apparatus and extension device |
| CN111199758A (en) * | 2018-11-19 | 2020-05-26 | 爱思开海力士有限公司 | Semiconductor device with a plurality of transistors |
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|---|---|---|---|---|
| JPH05324157A (en) * | 1992-05-15 | 1993-12-07 | Sharp Corp | Input/output device and connecting method therefor |
| CN102388576A (en) * | 2009-04-09 | 2012-03-21 | 矢崎总业株式会社 | Communication address detection apparatus, connector with built-in control circuit, and communication address detection method |
| CN104181362A (en) * | 2014-09-04 | 2014-12-03 | 杭州西湖电子研究所 | High-voltage multi-pole and multi-state switching device with shielding property |
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| US20200035289A1 (en) * | 2015-11-16 | 2020-01-30 | Toshiba Memory Corporation | Host apparatus and extension device |
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