WO2016033906A1

WO2016033906A1 - Thawing apparatus for refrigerator

Info

Publication number: WO2016033906A1
Application number: PCT/CN2014/094802
Authority: WO
Inventors: 王海燕; 孔冬; 杨敏
Original assignee: 海信容声(广东)冰箱有限公司
Priority date: 2014-09-05
Filing date: 2014-12-24
Publication date: 2016-03-10
Also published as: JP2016536560A; DE112014001599T5; CN104186635A

Abstract

Disclosed is a thawing apparatus for a refrigerator, comprising a thawing room (1). The thawing room comprises a housing (11), a liner (12) and a door body (13). An electromagnetic wave excitation module (141), an electromagnetic wave high-voltage oscillation module (142) and a monitoring module (143) used for monitoring a food temperature are provided inside the thawing room. The electromagnetic wave excitation module, the electromagnetic wave high-voltage oscillation module and the monitoring module are electrically connected to one another. A first electrode (21) and a second electrode (22) which are used for being in contact with food are provided inside the thawing room. The first and second electrodes are electrically connected to the electromagnetic wave high-voltage oscillation module. A temperature sensor (23) electrically connected to the monitoring module is further provided inside the thawing room. The first and second electrodes release a high-frequency electromagnetic wave for the food in contact therewith, thereby realizing the quick and uniform thawing of frozen food.

Description

Refrigeration thawing device

技术领域Technical field

The present invention relates to a refrigerator, and more particularly to a defrosting device for a refrigerator.

背景技术Background technique

In general, a refrigerator has a refrigerating chamber that stores food at a low temperature of less than zero degrees and a freezing chamber that stores food at a low temperature below zero. Freezers typically freeze food for long-term storage of food. However, the user needs to thaw the food from the freezer before it can be cooked. How to thaw the frozen food and return to the fresh state before freezing is a common problem in many families' daily life.

The existing thawing method is to create an appropriate temperature and electric field in the refrigerator, and the frozen food can be quickly thawed, but the thawing temperature is uncontrollable; for example, microwave heating technology is adopted in the refrigerator, and the microwave emitting head disposed on the wall of the freezing chamber is thawed. Space radiates high-frequency electromagnetic waves to thaw frozen foods, but non-contact emission of high-frequency electromagnetic waves can cause uneven temperature inside and outside the food during thawing and the temperature after thawing is uncontrollable, affecting the quality of food after thawing.

发明内容Summary of the invention

The present invention provides a defrosting device for a refrigerator, which is provided with a first electrode and a second electrode for contacting food, a first electrode and a second, in order to overcome at least one of the defects described in the prior art. The electrode is electrically connected with the electromagnetic wave high-voltage oscillation module; the electromagnetic wave excitation module is electrically connected with the electromagnetic wave high-voltage oscillation module to generate a high-frequency electromagnetic wave, and the first electrode and the second electrode electrically connected with the electromagnetic wave high-voltage oscillation module release the high-frequency electromagnetic wave to the defrosting chamber, and the food is Contact heating is performed to allow the food to be quickly and evenly thawed. The temperature signal of the defrosted indoor food is transmitted to the monitoring module through a temperature sensor, and the monitoring module controls the electromagnetic wave excitation module electrically connected thereto, and the electromagnetic wave excitation module excites the electromagnetic wave high-voltage oscillation module electrically connected thereto to generate high-frequency electromagnetic waves, and the electromagnetic wave high-voltage oscillation module is electrically The connected first electrode and second electrode will release high frequency electromagnetic waves to the defrosting chamber to thaw the food; this arrangement enables the food to be quickly and evenly thawed while the temperature of the food is controllable, thereby preventing the temperature from being too high to destroy the nutrition and freshness of the food, or Foods that are too cold can not be thawed.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

A defrosting device for a refrigerator, comprising a defrosting chamber, the defrosting chamber casing, a defrosting chamber casing and a thawing chamber door body, wherein the thawing chamber is provided with an electromagnetic wave excitation module, an electromagnetic wave high-voltage oscillation module, and a monitoring module. The monitoring module is configured to monitor the temperature of the food; the electromagnetic wave excitation module is electrically connected to the electromagnetic wave high voltage oscillation module and the monitoring module; the first and second electrodes are disposed in the defrosting chamber, and the first electrode and the second electrode are used In contact with the food, the first electrode and the second electrode are electrically connected to the electromagnetic wave high-voltage oscillation module; the defrosting chamber is further provided with a temperature sensor, and the temperature sensor is electrically connected to the monitoring module;

After detecting the temperature signal of the defrosted indoor food by the temperature sensor, the temperature signal is transmitted to the monitoring module, and the monitoring module controls the electromagnetic wave excitation module electrically connected thereto, and the electromagnetic wave excitation module excites the electromagnetic wave high-voltage oscillation module electrically connected thereto to generate the high-frequency electromagnetic wave. The first electrode and the second electrode electrically connected to the electromagnetic wave high voltage oscillation module will release high frequency electromagnetic waves to the defrosting chamber to thaw the food.

The thawing device of the refrigerator of the present invention is provided with a first electrode and a second electrode for contacting the food inside the defrosting chamber, and the first electrode and the second electrode are electrically connected with the electromagnetic wave high voltage oscillation module; the electromagnetic wave excitation module and the electromagnetic wave high voltage oscillation module The electrical connection generates high-frequency electromagnetic waves, and the first electrode and the second electrode electrically connected to the electromagnetic wave high-voltage oscillation module release high-frequency electromagnetic waves into the defrosting chamber, and the food is contact-heated, so that the food can be quickly and uniformly thawed. The temperature signal of the defrosted indoor food is transmitted to the monitoring module through a temperature sensor, and the monitoring module controls the electromagnetic wave excitation module electrically connected thereto, and the electromagnetic wave excitation module excites the electromagnetic wave high-voltage oscillation module electrically connected thereto to generate high-frequency electromagnetic waves, and the electromagnetic wave high-voltage oscillation module is electrically The connected first electrode and second electrode will release high-frequency electromagnetic waves to the defrosting chamber to thaw the food; the food can be quickly and evenly thawed while the temperature of the food is controllable, thereby preventing the temperature from being too high to damage the nutrition and freshness of the food, or the temperature is too low Food cannot be thawed.

In order to enable the food to maintain the flavor before freezing, the food is softly thawed, and the monitoring module controls the temperature range after the thawing of the food in the thawing chamber ranges from -5 to 0 °C. The monitoring module controls the temperature range of the food in the thawing chamber to be -5~0 °C, in order to keep the flavor of the food before freezing, and adopt the method of soft thawing to avoid the excessive temperature and destroy the freshness of the food and lose The previous flavor; or avoiding the temperature is too low to completely thaw the food.

In order to receive the temperature signal collected by the temperature sensor, compare the received temperature signal with the set temperature signal to control the operation or stop the operation of the electromagnetic wave excitation module, the monitoring module includes a temperature controller, and the temperature controller is used for controlling The electromagnetic wave excitation module operates or stops, and the temperature controller is electrically connected to the temperature sensor and the electromagnetic wave excitation module. The temperature controller is set to receive the temperature signal of the temperature sensor and compare with the set temperature signal to determine the working state of the electromagnetic wave excitation module; the temperature controller controls the electromagnetic wave excitation module to be completed in a conventional manner, such as a solid state relay.

Preferably, the thawing apparatus further includes a defrosting tank for placing food, the defrosting tank being placed in the defrosting chamber and detachably connected to the defrosting chamber.

Preferably, the first electrode and the second electrode are disposed in the defrosting box and are adjustable in position. In order to facilitate the opening and closing of the defrosting box, the defrosting box comprises a box body and a box cover, one end of the box body is connected with the box cover by a hinge, and the other end is locked with the box cover by a snap. The buckle structure is arranged to avoid the inconvenience of opening and closing by a structure such as a thread, thereby improving the convenience of opening and closing the defrosting box.

In order to maintain the temperature in the defrosting box, the thawing effect is prevented from being lowered due to leakage of high-frequency electromagnetic waves, and an electromagnetic shielding layer and an insulating layer are disposed outside the box of the defrosting box. The insulation layer is set to avoid energy leakage in the defrosting tank, improve the thawing effect and efficiency, and shorten the thawing time.

In order to facilitate direct contact of the food between the first electrode and the second electrode for thawing, and to adjust the position of the first electrode and the second electrode at any time according to the shape of the food and the condition of thawing, the first electrode and the second electrode For the sheet structure or the needle structure, the activities are arranged on the left and right sides of the box body. The first electrode and the second electrode are arranged to be disposed on the left and right sides of the box body, so that the first electrode and the second electrode sandwich the food which needs to be thawed and placed in the defrosting box, and the high-frequency electromagnetic wave is convenient to be released. Quickly thaw food. Moreover, the structures of the first electrode and the second electrode are versatile, and both a sheet structure and a needle structure can be used.

Compared with the prior art, the beneficial effects of the present invention are:

附图说明DRAWINGS

1 is a schematic structural view of a defrosting apparatus of a refrigerator of the present invention.

2 is a schematic view showing the working principle of the defrosting device of the refrigerator of the present invention.

具体实施方式detailed description

The invention will now be further described in conjunction with specific embodiments. The drawings are for illustrative purposes only, and are merely illustrative, rather than actual, and are not to be construed as limiting the scope of the invention; Zooming in or out does not represent the size of the actual product; it will be understood by those skilled in the art that certain known structures and their description may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it is understood that the terms "upper", "lower", "left", "right" are used. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and the simplified description, and does not indicate or imply that the device or component referred to has a specific orientation, Azimuth construction and operation, and therefore, the terms of the positional relationship in the drawings are for illustrative purposes only, and are not to be construed as limiting the scope of the invention, and the specific meaning of the above terms may be understood by those of ordinary skill in the art.

Example

1 to 2 show an embodiment of a defrosting device for a refrigerator according to the present invention, comprising a defrosting chamber 1 including a defrosting chamber casing 11, a defrosting chamber 12 and a thawing chamber door 13, and a thawing chamber 1 An electromagnetic wave excitation module 141, an electromagnetic wave high voltage oscillation module 142, and a monitoring module 143 are provided, and the monitoring module 143 is configured to monitor the food temperature; the electromagnetic wave excitation module 141 is electrically connected to the electromagnetic wave high voltage oscillation module 142 and the monitoring module 143; the freezing chamber 1 is A first electrode 21 and a second electrode 22 are disposed therein, and the first electrode 21 and the second electrode 22 are for contacting with food, and the first electrode 21 and the second electrode 22 are electrically connected to the electromagnetic wave high voltage oscillation module 142; a temperature sensor 23 is also provided, and the temperature sensor 23 is electrically connected to the monitoring module 143;

After the temperature sensor 23 detects the temperature signal of the food in the defrosting chamber 1, the temperature signal is transmitted to the monitoring module 143, and the monitoring module 143 controls the electromagnetic wave excitation module 141 electrically connected thereto, and the electromagnetic wave excitation module 141 excites the electromagnetic wave high voltage electrically connected thereto. The oscillating module 142 generates high frequency electromagnetic waves, and the first electrode 21 and the second electrode 22 electrically connected to the electromagnetic wave high voltage oscillating module 142 will release high frequency electromagnetic waves to the defrosting chamber 1 to thaw the food.

The monitoring module 143 controls the temperature value of the food in the defrosting chamber 1 after thawing to range from -5 to 0 °C. This embodiment is set in such a way as to maintain the flavor before freezing in the process of thawing, adopting a soft thawing method, avoiding excessive temperature, destroying the freshness of the food, losing the previous flavor, or avoiding the temperature being too low to be able to treat the food. Perform a complete thaw.

Specifically, the monitoring module 143 includes a temperature controller 144, and the temperature controller 144 For controlling the electromagnetic wave excitation module 141 to operate or stop, the temperature controller 144 is electrically connected to the temperature sensor 23 and the electromagnetic wave excitation module 141. The temperature controller 144 is configured to receive the temperature signal of the temperature sensor 23 and compare it with the set temperature signal, thereby determining the working state of the electromagnetic wave excitation module 141, determining its operation or stopping, thereby better thawing the food; The temperature controller 144 controls the electromagnetic wave excitation module 141 to be accomplished in a conventional manner, such as a solid state relay or a switch closed type. The specific function is that the temperature controller 144 is configured to receive the temperature signal detected by the temperature sensor 23 and compare it with the temperature controller 144 to preset the temperature signal, thereby controlling the opening and stopping of the electromagnetic wave excitation module 141; 23 detecting that the temperature of the food is lower than a preset temperature of the temperature controller 144, the electromagnetic wave excitation module 141 is in an operating state to raise the temperature of the food; otherwise, when the temperature sensor 23 detects that the temperature of the food is higher than the temperature controller At a preset temperature of 144, the electromagnetic wave excitation module 141 is in a stopped state.

Wherein, the defrosting device in the present embodiment further includes a defrosting tank 2 for placing food, and the defrosting tank 2 is placed in the defrosting chamber 1 and detachably connected to the defrosting chamber 1. It should be noted that the setting of the defrosting box 2 is for the placement of food, and provides the versatility of the thawing device. The customer can place the defrosting box 2 as needed, and thaw in the defrosting box 2; or remove the defrosting box 2, directly in the The thawing chamber 1 is thawed to make the thawing device more human. That is, the defrosting tank 2 can be taken out from the defrosting chamber 1 when necessary.

In addition, the first electrode 21 and the second electrode 22 are disposed in the defrosting tank 2 and are adjustable in position. The first electrode 21 and the second electrode 22 are disposed in the defrosting box 2 and are adjustable in position, so that the positions of the first electrode 21 and the second electrode 22 are adjusted at any time according to the shape of the food and the defrosted condition, so that the first electrode 21 and the first electrode The two electrodes 22 are in close contact with the food during thawing; at a certain distance from the food after thawing, it is advantageous to take out the food. By setting in this way, the first electrode 21 and the second electrode 22 can be better brought into contact with food, and the thawing efficiency is improved.

Further, the defrosting tank 2 includes a casing 24 and a tank cover 25, and one end of the casing 24 is hingedly connected to the tank cover 25, and the other end is locked with the tank cover 25 by a snap. In this embodiment, the setting is such that the lid 25 of the defrosting box is normally opened and closed. The outer casing of the defrosting box 2 is provided with an electromagnetic shielding layer and an insulating layer. In general, the electromagnetic shielding layer is a metal layer, and the electromagnetic shielding layer is disposed to prevent electromagnetic wave leakage in the defrosting box 2. The insulation layer is arranged to prevent the heat leakage in the defrosting tank 2 from causing an increase in the temperature in the defrosting chamber 1 to cause an increase in energy consumption caused by long-term operation of the refrigerator compressor.

In general, the electromagnetic wave excitation module 141, the electromagnetic wave high voltage oscillation module 142, and the monitoring module 143 are disposed in the defrosting host 14 of the defrosting chamber 1, and the switch button 15 is disposed outside the thawing host 14. The setting of the switch button 15 can facilitate manual control of the opening and closing of the defrosting device of the refrigerator.

In addition, the first electrode 21 and the second electrode 22 have a sheet-like structure or a needle-like structure, and are movable on the left and right sides of the inside of the casing 24. The first electrode 21 and the second electrode 22 are disposed on the left and right sides of the inside of the box body 24, so that the food to be thawed is placed in the middle position of the food in the defrosting box 2, and the high-frequency electromagnetic wave for releasing is fast to the food. thaw. Two parallel brackets, namely a first bracket 26 and a second bracket 27, are provided on the bottom of the casing 24, and the first bracket 26 and the second bracket 27 are fixedly connected to the bottom of the casing 24, respectively. A card slot is respectively disposed on the first bracket 26 and the second bracket 27, and the spacing between the adjacent two slots is 5-10 mm. The distance between the first electrode 21 and the second electrode 22 is adjusted by placing the first electrode 21 and the second electrode 22 at different card slot positions of the two holders. By adjusting the distance between the first electrode 21 and the second electrode 22, the first electrode 31 and the second electrode 32 are respectively brought into contact with the two ends of the food placed in the middle.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

A defrosting device for a refrigerator, comprising a defrosting chamber (1), the thawing chamber (1) comprising a defrosting chamber casing (11), a defrosting chamber bladder (12) and a defrosting chamber door body (13), characterized in that The thawing chamber (1) is provided with an electromagnetic wave excitation module (141), an electromagnetic wave high voltage oscillation module (142), a monitoring module (143), and the monitoring module (143) is for monitoring food temperature; the electromagnetic wave excitation module (141) The electromagnetic wave high-voltage oscillation module (142) and the monitoring module (143) are electrically connected; the first anti-freezing chamber (1) is provided with a first electrode (21) and a second electrode (22), and the first electrode (21) And a second electrode (22) for contacting the food, the first electrode (21) and the second electrode (22) being electrically connected to the electromagnetic wave high voltage oscillation module (142); the defrosting chamber (1) is further provided There is a temperature sensor (23), and the temperature sensor (23) is electrically connected to the monitoring module (143); After detecting the temperature signal of the food in the defrosting chamber (1) by the temperature sensor (23), the temperature signal is transmitted to the monitoring module (143), and the monitoring module (143) controls the electromagnetic wave excitation module (141) electrically connected thereto to operate, the electromagnetic wave The excitation module (141) excites the electromagnetic wave high-voltage oscillation module (142) electrically connected thereto to generate high-frequency electromagnetic waves, and the first electrode (21) and the second electrode (22) electrically connected to the electromagnetic wave high-voltage oscillation module (142) are directed to the defrosting chamber. (1) Release high-frequency electromagnetic waves to thaw food.
The defrosting device of the refrigerator according to claim 1, wherein the monitoring module (143) controls the temperature value after the thawing of the food in the defrosting chamber (1) ranges from -5 to 0 °C.
The defrosting device of the refrigerator according to claim 1, wherein the monitoring module (143) comprises a temperature controller (144), and the temperature controller (144) For controlling the operation or stop of the electromagnetic wave excitation module (141), the temperature controller (144) is electrically connected to the temperature sensor (23) and the electromagnetic wave excitation module (141).
The thawing apparatus for a refrigerator according to any one of claims 1 to 3, characterized in that the thawing apparatus further comprises a defrosting tank (2) for placing food, and the defrosting tank (2) is placed in the thawing The chamber (1) is detachably connected to the defrosting chamber (1).
The defrosting apparatus of the refrigerator according to claim 4, wherein the first electrode (21) and the second electrode (22) are disposed in the defrosting tank (2) and are adjustable in position.
A defrosting apparatus for a refrigerator according to claim 5, wherein said defrosting tank (2) comprises a casing (24) and a tank cover (25), one end of said casing (24) and said tank cover ( 25) By hinge connection, the other end is locked with the cover (25) by a snap.
The thawing apparatus for a refrigerator according to claim 6, characterized in that the outer side of the casing (24) of the defrosting tank (2) is provided with an electromagnetic shielding layer and an insulating layer.
The defrosting device of the refrigerator according to claim 7, wherein the first electrode (21) and the second electrode (22) are in the form of a sheet structure or a needle-like structure, and are disposed in the box body (24). The left and right sides.