CN202267320U - Refrigeration device - Google Patents
Refrigeration device Download PDFInfo
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- CN202267320U CN202267320U CN2011203715811U CN201120371581U CN202267320U CN 202267320 U CN202267320 U CN 202267320U CN 2011203715811 U CN2011203715811 U CN 2011203715811U CN 201120371581 U CN201120371581 U CN 201120371581U CN 202267320 U CN202267320 U CN 202267320U
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Abstract
The utility model discloses a refrigeration device, which is characterized by comprising a speed change fan, a frequency conversion compressor, an environmental noise detection unit and a control unit. The environmental noise detection unit is used for detecting environmental noise of the refrigeration device, and the control unit is connected with the environmental noise detection unit, the speed change fan and the frequency conversion compressor to control rotating speed of the speed change fan and/or the frequency conversion compressor according to the environmental noise detected by the environmental noise detection unit. The refrigeration device can control the rotating speed of the speed change fan and the frequency conversion compressor according to the environmental noise of the refrigeration device, noise produced by the refrigeration device can correspond to environmental noise, users are not apt to hear noise of the refrigeration device, and quality of the refrigeration device is promoted.
Description
Technical field
The utility model relates to refrigeration technology field, particularly a kind of refrigeration plant.
Background technology
The refrigeration plant for example noise of refrigerator is an important indicator of weight cool equipment quality, also is one of index of quality that most possibly causes customer complaint.In order to improve the refrigeration plant noise, existing at present refrigeration plant is judged day and night through light-sensitive element sensitization, makes refrigeration plant compressor low cruise when working night, thus the problem of the noise of refrigeration plant compressor high-speed cruising when avoiding the late into the night.China utility model patent CN201497272U describes a kind of air-cooled variable-frequency multi-door refrigerator of low noise work in the late into the night; The ambient brightness that this refrigerator can be in through the light sensor sensing refrigeration plant that is provided with on the display board now; Through the processing of CPU, comprehensively carry out differential Based Intelligent Control again, confirm that current environment is the daytime or the late into the night; Frequency-changeable compressor is done low-speed running when confirming as the late into the night, and frequency-changeable compressor is done and run up when confirming as daytime.This refrigeration plant can only be controlled the rotating speed of frequency-changeable compressor according to the brightness in the external world; When extraneous brightness is higher; For example; No matter be daytime or the night of turning on light its frequency-changeable compressor all run up, the noise when running up is higher, this noise control mode can't satisfy the noise requirements of user to refrigeration plant sometimes.
The utility model content
The utility model is based on the cognitive and discovery of utility model people to the following fact: existing refrigeration plant is the noise objective of refrigerator for example, all is according to products standards, the result who in laboratory, records.In fact, in different environment, the user is often different to the noise of refrigeration plant (mainly be by refrigeration plant compressor and/or blower fan produce) impression.For example, during the ambient noise around the noise of refrigeration plant itself is equal to or less than (noise that the noise source by refrigeration plant in the residing environment produces), the user is in fact also insensitive to the noise impression of refrigeration plant itself; Under the relatively more quiet situation of ambient noise,, possibly cause user's sensitivity around because of the projecting ambient noise of refrigeration plant noise although the noise of refrigeration plant own meets relevant criterion, thus the noise problem of complaint refrigeration plant.For example; Same refrigeration plant for example is refrigerator, and in the city or the more noisy period on daytime of surrounding environment of clamour, the user maybe be also not obvious to the impression of its noise; But in quiet rural area or period at night in the dead of night, the user possibly can become to its noise and be difficult to stand.Therefore; The user is to the direct feel of refrigeration plant noise, and is closely related with its living conditions and habits and customs, for example; Certain customers' refrigeration plant placement location is usually very near apart from parlor, bedroom; Under this environment for use,, still can have a strong impact on user's sleep and rest although the noise objective of refrigeration plant itself is qualified.Thus, the utility model people draws according to above cognition and discovery: influence the user receives refrigeration plant to the noise of refrigeration plant influence of environmental noise.
For this reason, a purpose of the utility model is to propose a kind of refrigeration plant, and this refrigeration plant can be according to the ambient noise control speed-changing draught fan and/or the frequency-changeable compressor rotating speed of refrigeration plant, to improve the impression of user to the noise of refrigeration plant.
To achieve these goals, the embodiment of the utility model provides a kind of refrigeration plant, comprising: speed-changing draught fan; Frequency-changeable compressor; Detect the environment noise test unit of the ambient noise of said refrigeration plant; Control module, said control module link to each other with said environment noise test unit, said speed-changing draught fan and said frequency-changeable compressor with the rotating speed according to said environment noise test unit detected ambient noise size said speed-changing draught fan of control and/or said frequency-changeable compressor.
Can control the rotating speed of speed-changing draught fan and frequency-changeable compressor according to the size of the ambient noise of refrigeration plant according to the refrigeration plant of the utility model embodiment; So that noise and ambient noise that refrigeration plant produces are mated each other; Improve user's impression to the noise of refrigeration plant when using refrigeration plant, thereby promoted the quality of refrigeration plant.
In addition, the refrigeration plant according to the utility model the foregoing description can also have following additional technical characterictic:
Further comprise temperature setup unit and temperature detecting unit, said control module links to each other with said temperature detecting unit to control the startup of said compressor and said blower fan according to the temperature of detected temperature of said temperature detecting unit and the setting of said temperature setup unit and to stop with said temperature setup unit.
Said refrigeration plant is a refrigerator.
Said temperature detecting unit is arranged on the refrigeration of said refrigerator and asks indoor.
Said temperature setup unit is arranged on the apparent control plate of said refrigerator.
Said environment noise test unit is located on the outer wall of refrigerator.
Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the structural representation according to the refrigeration plant of the utility model embodiment.
The specific embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the utility model; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
Refrigeration plant according to the utility model embodiment is described with reference to the drawings below.
As shown in Figure 1, for example be refrigerator according to the refrigeration plant of the embodiment of the utility model, certainly, the utility model is not limited to this, for example can refrigerator, showcase etc.Refrigeration plant according to the utility model embodiment comprises: speed-changing draught fan 10, frequency-changeable compressor 20, environment noise test unit 30 and control module 40.
Particularly, environment noise test unit 30 is used to detect the ambient noise of refrigeration plant.The ambient noise here is meant the ambient noise that the noise source in the refrigeration plant environment of living in produces.For example; Refrigeration plant is placed in the kitchen; Ambient noise is meant the noise that near the noise source (for example smoke exhaust ventilator) the refrigeration plant produces in the kitchen, and refrigeration plant is placed in the parlor, and ambient noise then is meant the noise that near the acoustic noise source (for example television set) the refrigeration plant produces in the parlor.Ambient noise be can with around the variation of environment change, the vehicle that goes in the street in kitchen for example at the front or parlor more for a long time, the noise in open the window kitchen or the parlor may be big when shutting the window.
Control module 40 links to each other with environment noise test unit 30, speed-changing draught fan 10 and frequency-changeable compressor 20 with the rotating speed (promptly controlling the noise of refrigeration plant) according to environment noise test unit 30 detected ambient noise size control speed-changing draught fans 10 and/or frequency-changeable compressor 20; Among the embodiment below, the rotating speed of controlling speed-changing draught fan 10 and/or frequency-changeable compressor 20 simultaneously according to environment noise test unit 30 detected ambient noise sizes with control module 40 is that example is described.
In other words; The rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 can be by control module 40 controls, and the noise that speed-changing draught fan 10 and/or frequency-changeable compressor 20 produce normally and rotating speed separately (rotating speed of frequency conversion fan 10 is meant the rotating speed of frequency conversion fan 10 motors and blade, and compressor rotary speed is meant the rotating speed of motor of frequency-changeable compressor) that be directly proportional; After ambient noise is gathered in environment noise test unit 30 noise figure is passed to control module 40; Control module 40 is according to the noise figure that collects, the rotating speed of control speed-changing draught fan 10 and frequency-changeable compressor 20, and the noise (noise of refrigeration plant) that produces when making the work of speed-changing draught fan 10 and frequency-changeable compressor 20 is adaptive with ambient noise; Be used for impression with improvement to the noise of refrigeration plant;, need to prove, when speed-changing draught fan 10 and frequency-changeable compressor 20 are in minimum speed; The noise of refrigeration plant might be higher than ambient noise; When for example ambient noise was near 0dB, environment noise test unit 30 detected behind the environmental noise rotating speed with speed-changing draught fan 10 and/or frequency-changeable compressor 20 and is controlled at lowest speed and gets final product, and this moment, the noise of refrigeration plant was higher than environmental noise.Thus, improve user's impression.
Control the rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 according to the size of the ambient noise of refrigeration plant according to the refrigeration plant of the utility model embodiment; So that noise that refrigeration plant produces and ambient noise coupling; Make the noise of user's unsusceptibility, promoted the quality of refrigeration plant to refrigeration plant.
An embodiment according to the utility model; Further comprise temperature setup unit and temperature detecting unit (not shown), control module 40 links to each other with temperature detecting unit to control the startup of compressor and blower fan according to the temperature of detected temperature of temperature detecting unit and the setting of temperature setup unit and to stop with the temperature setup unit.Can the interior temperature of refrigeration plant control thus.
Preferably, temperature detecting unit can be arranged between the refrigeration of refrigerator indoor.Thus, can conveniently detect indoor temperature between refrigeration.
Control can be arranged on the temperature setup unit on the apparent control plate of refrigerator for ease.
For ease ambient noise is detected, the environment noise test unit can be located on the outer wall of refrigerator.
According to an embodiment of the utility model, environment noise test unit 30 is the testing environment noise between speed-changing draught fan 10 and frequency-changeable compressor 20 down periods.In other words, environment noise test unit 30 detects ambient noise when speed-changing draught fan 10 and frequency-changeable compressor 20 stop, and makes detected ambient noise value more accurate.
Some embodiment according to the utility model; Environment noise test unit 30 between speed-changing draught fan 10 and frequency-changeable compressor 20 down periods with preset frequency testing environment noise, the mean value of control module 40 computing environment noise detection unit 30 detected ambient noise between speed-changing draught fan 10 and frequency-changeable compressor 20 down periods and wherein according to the rotating speed of mean value control speed-changing draught fan 10 and/or frequency-changeable compressor 20.
Particularly; Environment noise test unit 30 is at speed-changing draught fan 10 and frequency-changeable compressor 20 down period interbody spacer scheduled time testing environment noises, and controls the rotating speed of speed-changing draught fan 10 and/or frequency-changeable compressor 20 through the mean value of control module 40 computing environment noise detection unit 30 detected ambient noise between speed-changing draught fan 10 and frequency-changeable compressor 20 down periods.Can get rid of the interference of refrigeration plant self NOISE ON ENVIRONMENT noise measuring like this, make detected environmental noise more accurate.Thus, can make speed-changing draught fan 10 and frequency-changeable compressor 20 be in rational rotating speed, promptly improve user's impression, improve the operating efficiency of refrigeration plant again.
According to some examples of the utility model, control module 40 is calculating mean value from maximum noise value and minimal noise value are removed in environment noise test unit 30 the detected ambient noise between speed-changing draught fan 10 and frequency-changeable compressor 20 down periods after.Thus, can avoid of the interference of sudden noise, thereby make the mean value of the ambient noise that calculates to reflect the ambient noise level around the refrigeration plant under the current state more objective, truly the environment noise test process.
Some embodiment according to the utility model; Be preset with a plurality of ambient noise levels in the control module 40; And the rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 is divided into respectively and a plurality of ambient noise levels rotating speed one to one, and wherein control module 40 is controlled to be the rotating speed corresponding with this ambient noise level with environment noise test unit 30 detected ambient noises and ambient noise level comparison and according to the residing ambient noise level of environment noise test unit 30 detected ambient noises respectively with the rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20.
In other words; The rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 is set to a plurality of; A plurality of rotating speeds are corresponding one by one with a plurality of ambient noise levels respectively, and each noise level in a plurality of ambient noise levels here can be between a noise range, and noise mean value is in this is interval the time; Control module 40 control speed-changing draught fan 10 and/or frequency-changeable compressor 20 rotating speeds separately make rotating speed corresponding with corresponding ambient noise level.Thus, can make speed-changing draught fan 10 and frequency-changeable compressor 20 be in rational rotating speed, promptly improve user's impression, improve the operating efficiency of refrigeration plant again.
Some embodiment according to the utility model; Ambient noise level be divided into the low noise level, in level and the high level of making an uproar of making an uproar, and the rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 be divided into respectively the low speed corresponding with the low noise level, in the corresponding middling speed of level and the height corresponding high speed of level of making an uproar of making an uproar.After rotating speed done above-mentioned differentiation, can make speed-changing draught fan 10 and frequency-changeable compressor 20 be in rational rotating speed, promptly reduce the operating efficiency that noise has improved refrigeration plant again.
Refrigeration plant has speed-changing draught fan 10 and frequency-changeable compressor 20, and its control method may further comprise the steps: the ambient noise and the b that a) detect said refrigeration plant) control the rotating speed of said frequency-changeable compressor and/or said speed-changing draught fan according to detected said ambient noise.
Refrigeration plant is controlled the rotating speed of speed-changing draught fan 10 and/or frequency-changeable compressor 20 according to the size of the ambient noise of refrigeration plant; So that noise that refrigeration plant produces and ambient noise coupling; Make the noise of user's unsusceptibility, promoted the quality of refrigeration plant to refrigeration plant.
According to some embodiment of the utility model, ambient noise detects between speed-changing draught fan 10 and frequency-changeable compressor 20 down periods.The detection that can get rid of refrigeration plant self NOISE ON ENVIRONMENT noise like this produces to be disturbed, and makes detected environmental noise more accurate.
According to an embodiment of the utility model, the ambient noise that detects refrigeration plant comprises: with preset frequency testing environment noise, for example the scheduled time is detected environmental noise at interval between speed-changing draught fan 10 and frequency-changeable compressor 20 down periods.With the mean value that calculates detected ambient noise, wherein control the rotating speed of said speed-changing draught fan and frequency-changeable compressor according to said mean value.
Particularly, through after averaging, the detection that can get rid of refrigeration plant self NOISE ON ENVIRONMENT noise produces to be disturbed, and makes detected environmental noise more accurate.Thus, can make speed-changing draught fan 10 and frequency-changeable compressor 20 be in rational rotating speed, promptly improve user's impression, improve the operating efficiency of refrigeration plant again.
The said mean value of calculating after maximum noise value and the minimal noise value can be removed in a nearlyer step ground from detected ambient noise.
According to some embodiment of the utility model, the rotating speed of controlling said frequency-changeable compressor and/or said speed-changing draught fan according to detected ambient noise comprises: preset a plurality of ambient noise levels and the rotating speed of said speed-changing draught fan 10 and frequency-changeable compressor 20 is divided into respectively and said a plurality of ambient noise levels rotating speed one to one; With with detected said ambient noise and said ambient noise level comparison and according to the residing ambient noise level of detected ambient noise the rotating speed of said speed-changing draught fan and/or frequency-changeable compressor is controlled to be the rotating speed corresponding with this ambient noise level respectively.
In other words, the rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 is set to a plurality of, and a plurality of rotating speeds are corresponding one by one with a plurality of ambient noise levels respectively; Each ambient noise level in a plurality of ambient noise levels here can be between a noise range; Noise mean value is in this interval, and the rotating speed of control module 40 control speed-changing draught fans 10 and frequency-changeable compressor 20 makes rotating speed corresponding with ambient noise level; In other words, make the noise and the ambient noise coupling of refrigeration plant.Thus, can make speed-changing draught fan 10 and frequency-changeable compressor 20 be in rational rotating speed, promptly improve user's impression, improve the operating efficiency of refrigeration plant again.
Some embodiment according to the utility model; Ambient noise level be divided into the low noise level, in level and the high level of making an uproar of making an uproar, and the rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 be divided into respectively the low speed corresponding with the low noise level, in the corresponding middling speed of level and the height corresponding high speed of level of making an uproar of making an uproar.
In other words, ambient noise level can be divided into the low noise level, in level and the high level of making an uproar of making an uproar, and the rotating speed of speed-changing draught fan 10 and frequency-changeable compressor 20 be divided into respectively the low speed corresponding with the low noise level, in the corresponding middling speed of level and the height corresponding high speed of level of making an uproar of making an uproar.After rotating speed done above-mentioned differentiation, can make speed-changing draught fan 10 and frequency-changeable compressor 20 be in rational rotating speed, promptly improve user's impression, improve the operating efficiency of refrigeration plant again.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is limited claim and equivalent thereof.
Claims (6)
1. a refrigeration plant is characterized in that, comprising:
Speed-changing draught fan;
Frequency-changeable compressor;
Detect the environment noise test unit of the ambient noise of said refrigeration plant;
Control module, said control module link to each other with said environment noise test unit, said speed-changing draught fan and said frequency-changeable compressor with the rotating speed according to said environment noise test unit detected ambient noise size said speed-changing draught fan of control and/or said frequency-changeable compressor.
2. refrigeration plant according to claim 1; It is characterized in that; Further comprise temperature setup unit and temperature detecting unit, said control module links to each other with said temperature detecting unit to control the startup of said compressor and said blower fan according to the temperature of detected temperature of said temperature detecting unit and the setting of said temperature setup unit and to stop with said temperature setup unit.
3. refrigeration plant according to claim 2 is characterized in that, said refrigeration plant is a refrigerator.
4. refrigeration plant according to claim 3 is characterized in that, said temperature detecting unit is arranged between the refrigeration of said refrigerator indoor.
5. refrigeration plant according to claim 2 is characterized in that, said temperature setup unit is arranged on the apparent control plate of said refrigerator.
6. refrigeration plant according to claim 3 is characterized in that, said environment noise test unit is located on the outer wall of refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203715811U CN202267320U (en) | 2011-09-27 | 2011-09-27 | Refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203715811U CN202267320U (en) | 2011-09-27 | 2011-09-27 | Refrigeration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267320U true CN202267320U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203715811U Expired - Lifetime CN202267320U (en) | 2011-09-27 | 2011-09-27 | Refrigeration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202267320U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506535A (en) * | 2011-09-27 | 2012-06-20 | 合肥美的荣事达电冰箱有限公司 | Refrigerating device and control method thereof |
| CN104236000A (en) * | 2013-06-17 | 2014-12-24 | 海尔集团公司 | Air conditioner outdoor fan starting method |
| CN105806002A (en) * | 2016-04-30 | 2016-07-27 | 安徽朗格暖通设备有限公司 | Control method for refrigerator freezing chamber refrigeration and refrigerator |
| CN108626963A (en) * | 2018-04-19 | 2018-10-09 | 长虹美菱股份有限公司 | A kind of refrigerator DNR dynamic noise reduction control method |
| CN109506415A (en) * | 2017-09-15 | 2019-03-22 | 东芝生活电器株式会社 | Refrigerator |
| WO2020221183A1 (en) * | 2019-05-02 | 2020-11-05 | 海尔智家股份有限公司 | Refrigeration appliance and method for minimizing noise impact |
| CN115325767A (en) * | 2021-05-10 | 2022-11-11 | 安徽美芝制冷设备有限公司 | Refrigerator and starting method and device of constant-frequency compressor of refrigerator |
-
2011
- 2011-09-27 CN CN2011203715811U patent/CN202267320U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506535A (en) * | 2011-09-27 | 2012-06-20 | 合肥美的荣事达电冰箱有限公司 | Refrigerating device and control method thereof |
| CN104236000A (en) * | 2013-06-17 | 2014-12-24 | 海尔集团公司 | Air conditioner outdoor fan starting method |
| CN104236000B (en) * | 2013-06-17 | 2016-11-09 | 海尔集团公司 | A kind of outdoor fan of air-conditioner starts method |
| CN105806002A (en) * | 2016-04-30 | 2016-07-27 | 安徽朗格暖通设备有限公司 | Control method for refrigerator freezing chamber refrigeration and refrigerator |
| CN105806002B (en) * | 2016-04-30 | 2017-12-29 | 佛山市顺德区冠育电器有限公司 | A kind of control method and refrigerator of freezer compartment of refrigerator refrigeration |
| CN109506415A (en) * | 2017-09-15 | 2019-03-22 | 东芝生活电器株式会社 | Refrigerator |
| CN109506415B (en) * | 2017-09-15 | 2022-03-08 | 东芝生活电器株式会社 | Refrigerator with a door |
| CN108626963A (en) * | 2018-04-19 | 2018-10-09 | 长虹美菱股份有限公司 | A kind of refrigerator DNR dynamic noise reduction control method |
| CN108626963B (en) * | 2018-04-19 | 2020-05-05 | 长虹美菱股份有限公司 | Dynamic noise reduction control method for refrigerator |
| WO2020221183A1 (en) * | 2019-05-02 | 2020-11-05 | 海尔智家股份有限公司 | Refrigeration appliance and method for minimizing noise impact |
| CN115325767A (en) * | 2021-05-10 | 2022-11-11 | 安徽美芝制冷设备有限公司 | Refrigerator and starting method and device of constant-frequency compressor of refrigerator |
| CN115325767B (en) * | 2021-05-10 | 2023-11-21 | 安徽美芝制冷设备有限公司 | Refrigerator and starting method and device of constant-frequency compressor of refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI MIDEA REFRIGERATOR CO., LTD. Free format text: FORMER NAME: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee after: Hefei Midea Refrigerator Co., Ltd. Patentee after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee before: Hefei Media Rongshida Refrigerator Co., Ltd. Patentee before: Hefei Hualing Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |