CN212209318U - Knob mechanism and refrigerator - Google Patents
Knob mechanism and refrigerator Download PDFInfo
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- CN212209318U CN212209318U CN202020950369.XU CN202020950369U CN212209318U CN 212209318 U CN212209318 U CN 212209318U CN 202020950369 U CN202020950369 U CN 202020950369U CN 212209318 U CN212209318 U CN 212209318U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 121
- 238000010438 heat treatment Methods 0.000 claims abstract description 110
- 238000009833 condensation Methods 0.000 claims abstract description 25
- 230000005494 condensation Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 17
- 238000005057 refrigeration Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 238000013507 mapping Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 238000011897 real-time detection Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
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Abstract
The utility model provides a knob mechanism, include: the heating device comprises a base, a shell, a cover plate, a display screen and a heating wire; the shell is provided with a through hole, the front side of the shell is sealed by the cover plate, and the rear side of the shell is connected with the base; the display screen is arranged behind the cover plate and used for displaying data information; the heating wire is arranged in the shell and used for adjusting the humidity inside the knob mechanism so as to prevent condensation. The utility model discloses a knob mechanism is through setting up the heater strip in the casing, can effectively get rid of the steam in the knob mechanism, prevents to produce the condensation, and then makes the demonstration of knob mechanism clear all the time, promotes user's impression and uses the impression. The utility model also provides a refrigerator with this knob mechanism.
Description
Technical Field
The utility model relates to a cold-stored refrigeration technical field especially relates to a knob mechanism and refrigerator.
Background
At present, with the continuous iteration and the upgrade of the refrigerator, the appearance and the function of the refrigerator are continuously optimized. The knob module is simple and convenient to operate, can adjust the temperature of the storage chamber with a display function, can switch different functions and the like, and is widely applied to the refrigerator. Usually, the knob module sets up at cold-stored indoor portion, when the user goes the refrigerator to open the door and gets the thing, can produce the condensation phenomenon on the screen of knob module, causes and shows unclear scheduling problem, influences user's impression and uses experience.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a knob mechanism that can prevent condensation.
The utility model discloses a further purpose makes the accurate and energy-conserving of preventing condensation control of knob mechanism.
In particular, the present invention provides a knob mechanism, comprising: the heating device comprises a base, a shell, a cover plate, a display screen and a heating wire;
the shell is provided with a through hole, the front side of the shell is sealed by a cover plate, and the rear side of the shell is connected with the base;
the display screen is arranged behind the cover plate and used for displaying data information;
the heater strip sets up in the casing for the inside humidity of adjust knob mechanism is in order to prevent the condensation.
Optionally, the knob mechanism further comprises: and the humidity detection device is arranged in the knob mechanism and used for detecting the humidity inside the knob mechanism.
Optionally, the knob mechanism further comprises: and the control unit is arranged behind the display screen and comprises a PCB and an MCU, and the MCU is electrically connected with the PCB and used for outputting data information to the display screen and controlling the action of the heating wire.
Optionally, the heating wire is disposed between the cover plate and the display screen.
Optionally, the cover plate comprises a transparent region and a non-transparent region;
the heating wires are arranged corresponding to the non-transparent areas.
Optionally, the transparent region is located in the center of the cover plate;
the non-transparent area is positioned on the peripheral side of the transparent area and is annular;
the heating wire is annular and is arranged corresponding to the annular non-transparent area.
Optionally, the knob mechanism further comprises: and the screen protection film is arranged between the heating wire and the display screen and used for isolating the display screen from the heating wire so as to avoid the damage to the display screen when the heating wire is opened.
The utility model also provides a refrigerator has aforementioned knob mechanism.
Optionally, the refrigerator comprises:
the refrigerator comprises a refrigerator body, a storage compartment and a door, wherein at least one storage compartment is defined in the refrigerator body; and
the door body is arranged at the front side of the storage chamber and used for opening and closing the storage chamber;
wherein the knob mechanism is arranged in at least one storage room.
Optionally, the knob mechanism is configured to: the action of the heating wire is controlled based on the opening and closing condition of the door body and the humidity inside the knob mechanism.
The utility model discloses a knob mechanism is through setting up the heater strip in the casing, can effectively get rid of the steam in the knob mechanism, prevents to produce the condensation, and then makes the demonstration of knob mechanism clear all the time, promotes user's impression and uses the impression.
Further, the utility model discloses a knob mechanism is through setting up humidity detection device in the casing, can the inside humidity of real-time detection knob mechanism, can be based on the switch condition of the door body and the inside humidity control heater strip action of knob mechanism when being applied to the refrigerator with this knob mechanism, has fully considered the factor that influences the inside humidity of knob mechanism, and the inside real-time humidity of knob mechanism will be considered in the control of heater strip simultaneously, can effectively avoid frequently opening and shutting the heater strip, realizes energy-conservation and high-efficient control.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is an exploded schematic view of a knob mechanism according to an embodiment of the present invention.
Fig. 2 is a side view of the refrigerator having the knob mechanism shown in fig. 1.
Fig. 3 is a schematic view of a knob mechanism anti-condensation method of the refrigerator shown in fig. 2.
Fig. 4 is a partial component composition block diagram of the refrigerator shown in fig. 2.
Fig. 5 is a flowchart of a method of preventing condensation of a knob mechanism of the refrigerator shown in fig. 2.
Detailed Description
Fig. 1 is an exploded schematic view of a knob mechanism 100 according to an embodiment of the present invention. Fig. 2 is a side view of the refrigerator 200 having the knob mechanism 100 shown in fig. 1. The utility model discloses knob mechanism 100 includes: a base 101, a housing 102, a cover plate 105, a display screen 103 and a heating wire 106. As shown in fig. 2, the refrigerator 200 having the knob mechanism 100 generally includes: a box 201 and a door 202. The cabinet 201 defines a storage compartment therein, which may include a refrigerating compartment, a freezing compartment, a temperature-changing compartment, and the like. In the refrigerator 200 shown in fig. 2, the storage compartment at the upper part is a refrigerating compartment 210, and a variable-temperature compartment and a freezing compartment are arranged below the refrigerating compartment in sequence, wherein a pivoting door body 202 is arranged at the front side of the refrigerating compartment 210, and the variable-temperature compartment and the freezing compartment are respectively provided with a first pull-out type storage device 203 and a second pull-out type storage device 204. In addition, a storage drawer 211 is provided in the refrigerating compartment 210. As shown in fig. 2, the knob mechanism 100 is disposed in the front-rear direction near the top of the refrigerating compartment 210. As shown in fig. 1, the housing 102 of the knob mechanism 100 has a through hole, a front side is sealed by a cover plate 105, and a rear side is connected to a base 101. The housing 102 is generally cylindrical, the through hole is a hole penetrating the housing 102 in the front-back direction, and a plurality of anti-slip ribs are provided on the outer wall of the housing 102 to facilitate the rotation of the user. The cover plate 105 may be a glass cover plate. The base 101 may refer to a base 101 structure in the prior art, and is not limited herein, and may be fixed to a storage compartment of the refrigerator 200 or a component in the storage compartment, such as a lamp holder. The display screen 103 is disposed behind the cover plate 105 and is used for displaying data information. The data information includes, but is not limited to, compartment temperature information, compartment humidity information, and the like. A heating wire 106 is provided in the housing 102 for adjusting humidity inside the knob mechanism 100 to prevent condensation. The utility model discloses knob mechanism 100 can effectively get rid of the steam in knob mechanism 100 through set up heater strip 106 in casing 102, prevents to produce the condensation, and then makes knob mechanism 100's demonstration clear all the time, promotes user's impression and use impression.
In some embodiments, the heating wire 106 is disposed between the cover plate 105 and the display screen 103, and the heating wire 106 is disposed between the cover plate 105 and the display screen 103 to prevent the generation of condensation more accurately, considering that condensation mainly affects the display effect of the knob mechanism 100, i.e., the cover plate 105 and the display screen 103.
In some embodiments, the cover plate 105 of the knob mechanism 100 of embodiments of the present invention may include a transparent region 151 and a non-transparent region; the heating wire 106 is disposed corresponding to the non-transparent region. By providing the heating wire 106 to be covered by the non-transparent area 152, the appearance of the entire knob mechanism 100 can be more beautiful, and the sensory experience of the user can be improved. Referring to fig. 1, in some embodiments, the transparent region 151 is located in the center of the cover plate 105; the non-transparent region 152 is located on the peripheral side of the transparent region 151 and is annular; the heating wire 106 is in a ring shape and is disposed corresponding to the ring-shaped non-transparent region 152. The heating wire 106 can make the heating inside the knob mechanism 100 more uniform, and avoid the local overheating.
In some embodiments, the knob mechanism 100 further includes a screen protection film 107 disposed between the heating wire 106 and the display screen 103 for isolating the display screen 103 from the heating wire 106 to prevent the display screen 103 from being damaged when the heating wire 106 is turned on. By arranging the screen protection film 107, the display screen 103 can be prevented from being influenced by too much heat of the heating wire 106, so that the service life of the display screen 103 is prevented from being influenced.
With continued reference to fig. 1, the knob mechanism 100 according to the embodiment of the present invention further includes: the humidity detection device 108 is disposed in the knob mechanism 100 and is configured to detect humidity inside the knob mechanism 100. The utility model discloses a knob mechanism 100 can real-time detection knob mechanism 100 inside humidity through set up humidity detection device 108 in casing 102, can conveniently control the operation of heater strip 106 based on this humidity value. At this time, the data information displayed by the display screen 103 may further include knob humidity information, operation state of the heater wire, heating power of the heater wire, and the like.
The utility model discloses knob mechanism 100 still includes: and the control unit 104 is arranged behind the display screen 103 and comprises a PCB and an MCU, wherein the MCU is electrically connected to the PCB and used for outputting data information to the display screen 103 and controlling the action of the heating wire 106. The PCB is provided with a humidity detection circuit and a humidity detection device 108 and the like. The control unit 104 may control the display screen 103 to display the operating state of the knob mechanism 100, for example, control the display screen 103 to display the current compartment function or the compartment temperature gear value; a communication relationship can be established with the main control board 205 of the refrigerator 200, data sent by the main control board 205 is received, corresponding function adjustment is carried out, and meanwhile, corresponding response signal return is carried out after setting is completed; the operation of the heating wire 106 may also be controlled such that the heating wire 106 operates according to a corresponding control logic. The control of the knob mechanism 100 and the control of the refrigerator 200 can be kept independent and matched by arranging the separate control unit 104 on the knob mechanism 100, and the control efficiency can be improved without being controlled by the main control panel 205 when only the internal control of the knob mechanism 100 is involved.
In some embodiments, the control unit 104 of the knob mechanism 100 is configured to: the operation of the heating wire 106 is controlled based on the opening and closing of the door 202 and the humidity inside the knob mechanism 100. The utility model discloses knob mechanism 100 is through setting up humidity detection device 108 in casing 102, can the inside humidity of real-time detection knob mechanism 100, can be based on the switch condition of door body 202 and the inside humidity control heater strip action of knob mechanism 100 when being applied to refrigerator 200 with this knob mechanism 100, the factor that influences the inside humidity of knob mechanism 100 has fully been considered, the inside real-time humidity of knob mechanism 100 will be considered in the control of heater strip 106 simultaneously, can effectively avoid only appearing frequently opening and stopping heater strip 106 based on the control of opening the door, realize energy-conservation and high-efficient control.
The specific operation steps for controlling the operation of the heating wire 106 based on the opening and closing conditions of the door 202 and the humidity inside the knob mechanism 100 can be various. Hereinafter, the condensation preventing method of the present invention applied to the knob mechanism 100 will be described in detail by way of example with reference to the refrigerating compartment 210. It can be understood that the temperature-changing chamber corresponding to the first pull-out type storage device 203 may also be provided with the knob mechanism 100, and at this time, the opening and closing of the door body is the pulling out and pushing in of the first pull-out type storage device 203; similarly, the knob mechanism 100 may be disposed in the freezing compartment corresponding to the second pull-out type storage device 204, and at this time, the opening and closing of the door body is the drawing out and pushing in of the second pull-out type storage device 204. As shown in fig. 3, in some embodiments, the method for preventing condensation of the knob mechanism 100 of the refrigerator 200 includes the steps of:
s102: acquiring the opening and closing conditions of the door body 202 of the refrigerating compartment 210;
s104: acquiring humidity inside the knob mechanism 100;
s106: the operation of the heating wire 106 is controlled based on the opening and closing of the door 202 and the humidity inside the knob mechanism 100.
Fig. 4 is a partial component composition block diagram of the refrigerator 200 shown in fig. 2. The control unit 104 may include a processor 140 and a memory 141, a computer program 142 is stored in the memory 141, and the computer program 142 is used to implement a control method of the anti-condensation method of the knob mechanism 100 of the refrigerator 200 when the computer program 142 is executed by the processor 140. Specifically, the opening and closing condition of the door 202 can be detected by the door opening and closing detection device 206 and sent to the main control board 205 of the refrigerator 200. The main control board 205 of the refrigerator 200 communicates with the control unit 104 of the knob mechanism 100, and receives a signal detected by the door opening/closing detection device 206, thereby obtaining the opening/closing condition of the door 202 of the refrigerating compartment 210. Meanwhile, the control unit 104 also acquires the humidity inside the knob mechanism 100 based on the humidity detection means 108. The processor 140 processes the acquired various information and controls the operation of the heating wire 106.
The step of controlling the action of the heating wire 106 based on the opening and closing condition of the door body 202 and the humidity inside the knob mechanism 100 comprises the following steps:
in the operation process of the refrigerator 200, whether an opening signal of the door body 202 is received is judged;
when the starting signal is received, acquiring the humidity inside the knob mechanism 100 to obtain a first knob humidity value, and judging whether the first knob humidity value is greater than or equal to a preset first humidity threshold value;
when the first knob humidity value is greater than or equal to the first humidity threshold value, the heating power of the heating wire 106 is determined according to a preset mapping relation, and the heating wire 106 is controlled to start heating, wherein the heating power of the heating wire 106 corresponding to the knob humidity range value is limited in the mapping relation.
Considering that the opening of the door 202 has a large influence on the humidity change inside the knob mechanism 100, the method of this embodiment first determines whether an opening signal of the door 202 is received. After receiving the turn-on signal, although the humidity inside the knob mechanism 100 changes, the method of the embodiment only controls the heating wire 106 to start heating when the humidity value of the first knob is greater than or equal to the first humidity threshold, so that frequent activation of the heating wire 106 for heating can be avoided, and the control is simplified. When the first knob humidity value is greater than or equal to the first humidity threshold, the method of this embodiment further sets a plurality of levels of heating powers, so that the heating state of the heating wire 106 is more matched with the actual humidity inside the knob mechanism 100, wherein the larger the first knob humidity value is, the higher the corresponding heating power is. For example, the range of humidity inside the knob mechanism 100 is assumed to be 5%60%, the first humidity threshold may be 30% -40%, e.g. 30%, 35%, 40%. Taking the first humidity threshold as 30% as an example, in the preset mapping relationship, the 30% -60% interval may be divided into 3 continuous intervals, the first interval is 30% -40%, and the corresponding heating power is W1(ii) a The second interval is 40-50%, and the corresponding heating power is W2(ii) a The first interval is 50-60%, and the corresponding heating power is W3；W1＜W2＜W3. The different heating powers of the heating wire 106 can be realized by designing a multi-way switch to control different power supplies to connect the heating wire 106. The number of the continuous intervals can be set according to the requirement, and is usually 3-5, so that multi-level control can be realized, and control switches are not excessively increased.
After the step of controlling the heating wire 106 to heat with the heating power, the method further comprises the following steps:
judging whether the door body 202 is closed;
when the door body 202 is closed, acquiring the humidity inside the knob mechanism 100 to obtain a second knob humidity value, and judging whether the second knob humidity value is smaller than or equal to a preset second humidity threshold value; and when the second knob humidity value is less than or equal to the second humidity threshold value, the heating wire 106 is controlled to stop heating;
when the door body 202 is not closed, the temperature of the refrigerating compartment 210 is obtained to obtain the first compartment temperature, and whether the first compartment temperature is greater than or equal to a preset first temperature threshold value is judged; and when the first compartment temperature is greater than or equal to the first temperature threshold, controlling the heating wire 106 to stop heating.
After controlling the heating wire 106 to heat for a period of time according to the heating power, when the door body 202 is normally closed, when the humidity inside the knob mechanism 100 is already lower than the second humidity threshold, it can be considered that there is no condensation risk, and at this time, the heating wire 106 is controlled to stop. The second humidity threshold is less than the first humidity threshold and may be 5% -10%, such as 5%, 7%, 10%. When the door 202 is not normally closed, the stop of the heater wire 106 is determined based on the magnitude relationship between the compartment temperature and the first temperature threshold, and when the temperature of the refrigerating compartment 210 approaches the ambient temperature, it is considered that the air of the refrigerating compartment 210 is continuously circulated with the ambient air in consideration of the fact that the door 202 is not closed, and the heater wire 106 is controlled to stop at this time when the temperature of the refrigerating compartment 210 approaches the ambient temperature, it is considered that there is no risk of condensation. The temperature of the refrigerating compartment 210 may be obtained by a temperature detection device 207 disposed in the refrigerating compartment 210. The first temperature threshold may be close to normal room temperature, about 20 ℃ to 25 ℃, e.g., 20 ℃, 22 ℃, 25 ℃.
In the anti-condensation method of the embodiment, when the opening signal of the door body 202 is not received, whether the closing time of the door body 202 exceeds a refrigeration cycle is judged;
when the closing time of the door body 202 does not exceed one refrigeration cycle, acquiring the temperature of the refrigeration compartment 210 to obtain a second compartment temperature, and judging whether the second compartment temperature is less than or equal to a preset second temperature threshold value;
when the second chamber temperature is less than or equal to the second temperature threshold, acquiring the humidity inside the knob mechanism 100 to obtain a third knob humidity value, and judging whether the third knob humidity value is greater than or equal to the first humidity threshold;
when the third knob humidity value is greater than or equal to the first humidity threshold value, the heating wire 106 is intermittently controlled to heat.
When the door body 202 is not opened all the time in a refrigeration cycle, it may be preliminarily determined that the humidity inside the knob mechanism 100 does not change much, and at this time, the temperature of the compartment and the second temperature threshold are determined first, that is, it is determined that the current state of the refrigerating compartment 210 is relatively stable, and then the humidity inside the knob mechanism 100 is considered. The second temperature threshold may be close to the target temperature of the normal storage compartment, for example, for the cold storage compartment 210, the target temperature is generally 3-5 ℃, and the second temperature threshold may be set to 3-5 ℃, for example, 3 ℃, 4 ℃, 5 ℃; as another example, for a freezer compartment, a typical target temperature is-18 deg.C (-20 deg.C), and correspondingly, a second temperature threshold may be set at-18 deg.C (-20 deg.C), e.g., -18 deg.C, -19 deg.C, -20 deg.C. That is, the refrigerator 200 may be provided with a plurality of second temperature thresholds respectively corresponding to the knob mechanisms 100 in different storage compartments. In addition, in the method of the embodiment, when the door body 202 is not opened, when the humidity value of the knob is greater than or equal to the first humidity threshold, the heating wire 106 is controlled intermittently to heat, and the intermittent heating of the heating wire 106 is utilized to avoid cold air condensation caused by long-time refrigeration work of the refrigerator 200, and energy is saved as much as possible. In some embodiments, the step of intermittently controlling the heating of the heating wire 106 comprises: the heating wire 106 is controlled to repeat a plurality of heating cycles, wherein in each heating cycle, the heating wire 106 is turned on to heat for a first preset time and then is turned off for a second preset time, and then the next heating cycle is performed. The first preset time may be 5-10s, e.g. 5s, 8s, 10 s. The second preset time may be the same as or different from the first preset time. The second preset time may be 5-10s, e.g. 5s, 7s, 10 s. When the heating wire 106 is intermittently heated, the heating wire 106 may be controlled to be intermittently heated by the heating power corresponding to the mapping relationship described above according to the first measured humidity value of the third knob, or an intermittent heating power may be separately preset.
After the step of intermittently controlling the heating of the heating wire 106, the method further comprises the following steps:
acquiring the humidity inside the knob mechanism 100 to obtain a fourth knob humidity value, and judging whether the fourth knob humidity value is less than or equal to a second humidity threshold value;
and when the fourth knob humidity value is less than or equal to the second humidity threshold value, controlling the heating wire 106 to stop heating.
Likewise, after the step of intermittently controlling the heating of the heating wire 106, when the humidity inside the knob mechanism 100 has been lower than the second humidity threshold, it may be considered that there is no risk of condensation, at which point the control of the heating wire 106 is stopped.
Fig. 5 is a detailed schematic flowchart of the anti-condensation method of the knob mechanism 100 of the refrigerator 200 shown in fig. 2. The anti-condensation method of the knob mechanism 100 of the refrigerator 200 includes the steps of:
s202: it is determined whether an opening signal of the door 202 of the refrigerating compartment 210 is received.
S204: when the determination result in step S202 is yes, the humidity inside the knob mechanism 100 is acquired, and the first knob humidity value is obtained.
S206: and judging whether the first knob humidity value is greater than or equal to a first humidity threshold value or not.
S208: when the judgment result of the step S206 is yes, the heating power is determined according to the preset mapping relationship and the heating wire 106 is controlled to start heating. If the determination result in step S206 is no, the heater wire 106 is not operated, and step S204 is continued until the determination result in step S206 is yes.
S210: after controlling the heating wire 106 to heat for a first preset time period according to the step S208, determining whether the door body 202 is closed. The first preset time period may be an interval time period for a user to open and close the door 202 of the refrigerator 200, and may be 10s-2min, for example, 10s, 1min, 2 min.
S212: if the determination result in step S210 is yes, the humidity inside the knob mechanism 100 is obtained, a second knob humidity value is obtained, and it is determined whether the second knob humidity value is less than or equal to a second humidity threshold value.
S214: when the judgment result of the step S212 is yes, the heating wire 106 is controlled to stop heating. When the determination result of step S212 is no, step S208 and step S210 are continuously executed until the determination result of step S212 is yes. It is understood that when the determination result of step S212 is no, only step S208 may be performed until the determination result of step S212 is yes.
S216: when the determination result in step S210 is no, the temperature of the refrigerating compartment 210 is acquired, and the first compartment temperature is obtained.
S218: and judging whether the first room temperature is greater than or equal to a first temperature threshold value. When the judgment result of the step S218 is yes, the heating wire 106 is controlled to stop heating. When the determination result of step S218 is no, step S216 is continued until the determination result of step S218 is yes.
S220: when the judgment result of the step S202 is no, it is judged whether the closing time of the door body 202 exceeds one refrigeration cycle.
S222: if the determination result in step S220 is no, the temperature of the refrigerating compartment 210 is acquired, and the second compartment temperature is obtained.
S224: and judging whether the second chamber temperature is less than or equal to a second temperature threshold value.
S226: when the determination result of step S224 is yes, the humidity inside the knob mechanism 100 is acquired, and the third knob humidity value is obtained.
S228: and judging whether the humidity value of the third knob is greater than or equal to the first humidity threshold value or not.
S230: when the judgment result of the step S228 is yes, the heating of the heating wire 106 is intermittently controlled.
S232: after the heating wire 106 is intermittently controlled to heat for the second preset time period according to the step S230, the humidity inside the knob mechanism 100 is obtained, a fourth knob humidity value is obtained, and whether the fourth knob humidity value is less than or equal to the second humidity threshold value is judged. The second preset time period may be 10s-1min, e.g. 10s, 30s, 1 min.
S234: when the judgment result of the step S232 is yes, the heating wire 106 is controlled to stop heating.
The utility model discloses knob mechanism 100 can effectively get rid of the steam in knob mechanism 100 through set up heater strip 106 in casing 102, prevents to produce the condensation, and then makes knob mechanism 100's demonstration clear all the time, promotes user's impression and use impression.
Further, the utility model discloses knob mechanism 100 is through setting up humidity detection device 108 in casing 102, can the inside humidity of real-time detection knob mechanism 100, can be based on the switch condition of door body 202 and the inside humidity control heater strip 106 action of knob mechanism 100 when being applied to refrigerator 200 with this knob mechanism 100, the factor of influencing the inside humidity of knob mechanism 100 has been fully considered, the inside real-time humidity of knob mechanism 100 will be considered in the control of heater strip 106 simultaneously, can effectively avoid only appearing frequently opening and stopping heater strip 106 based on the control of opening the door, realize energy-conservation and high-efficient control.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A knob mechanism, comprising: the heating device comprises a base, a shell, a cover plate, a display screen and a heating wire;
the shell is provided with a through hole, the front side of the shell is sealed by the cover plate, and the rear side of the shell is connected with the base;
the display screen is arranged behind the cover plate and used for displaying data information;
the heating wire is arranged in the shell and used for adjusting the humidity inside the knob mechanism so as to prevent condensation.
2. The knob mechanism according to claim 1, further comprising:
and the humidity detection device is arranged in the knob mechanism and used for detecting the humidity inside the knob mechanism.
3. The knob mechanism according to claim 1, further comprising:
and the control unit is arranged behind the display screen and comprises a PCB and an MCU, and the MCU is electrically connected with the PCB and used for outputting data information to the display screen and controlling the action of the heating wire.
4. The knob mechanism according to claim 1,
the heating wire is arranged between the cover plate and the display screen.
5. The knob mechanism according to claim 4,
the cover plate comprises a transparent area and a non-transparent area;
the heating wires are arranged corresponding to the non-transparent areas.
6. The knob mechanism according to claim 5,
the transparent area is positioned in the center of the cover plate;
the non-transparent area is positioned on the peripheral side of the transparent area and is annular;
the heating wire is annular and is arranged corresponding to the annular non-transparent area.
7. The knob mechanism according to claim 4, further comprising:
and the screen protection film is arranged between the heating wire and the display screen and used for enabling the display screen to be isolated from the heating wire so as to avoid damage to the display screen when the heating wire is opened.
8. A refrigerator characterized by having a knob mechanism according to any one of claims 1 to 7.
9. The refrigerator according to claim 8,
the refrigerator includes:
the refrigerator comprises a refrigerator body, a storage compartment and a door, wherein at least one storage compartment is defined in the refrigerator body; and
the door body is arranged on the front side of the storage compartment and used for opening and closing the storage compartment;
wherein the knob mechanism is arranged in at least one storage room.
10. The refrigerator according to claim 9,
the knob mechanism is configured to: and controlling the action of the heating wire based on the opening and closing condition of the door body and the humidity inside the knob mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020950369.XU CN212209318U (en) | 2020-05-29 | 2020-05-29 | Knob mechanism and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020950369.XU CN212209318U (en) | 2020-05-29 | 2020-05-29 | Knob mechanism and refrigerator |
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| CN212209318U true CN212209318U (en) | 2020-12-22 |
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| CN202020950369.XU Active CN212209318U (en) | 2020-05-29 | 2020-05-29 | Knob mechanism and refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223487A1 (en) * | 2020-05-29 | 2021-11-11 | 青岛海尔电冰箱有限公司 | Knob mechanism, refrigerator, and condensation prevention method |
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2020
- 2020-05-29 CN CN202020950369.XU patent/CN212209318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223487A1 (en) * | 2020-05-29 | 2021-11-11 | 青岛海尔电冰箱有限公司 | Knob mechanism, refrigerator, and condensation prevention method |
| CN113745034A (en) * | 2020-05-29 | 2021-12-03 | 青岛海尔电冰箱有限公司 | Knob mechanism, refrigerator and anti-condensation method |
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