CN114576904A

CN114576904A - But automatically regulated's mechanical damper and refrigerator

Info

Publication number: CN114576904A
Application number: CN202210159274.XA
Authority: CN
Inventors: 杜华东; 黄玉杰; 邓思垒; 李倩
Original assignee: Aucma Co Ltd
Current assignee: Aucma Co Ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-03
Also published as: WO2023160146A1

Abstract

The invention discloses an automatic adjustable mechanical air door and a refrigerator, and relates to the technical field of refrigeration. It includes air door shell, air door gleitbretter and power spare, the air door shell has the ventilation hole that runs through, the air door gleitbretter can with the ventilation hole closes completely. One end of the power part is fixedly connected with the air door sliding sheet, the other end of the power part is fixedly connected with the air door shell, and memory metal is adopted between the power parts. The invention realizes the automatic opening and closing of the air door according to the temperature by adopting the power part made of the memory metal, has stable structure and can be applied to different refrigeration equipment.

Description

But automatically regulated's mechanical damper and refrigerator

Technical Field

The invention relates to the technical field of refrigeration, in particular to an automatic adjustable mechanical air door and a refrigerator.

Background

Most of refrigerator and refrigerator products in the current market use an electronic air door to control the temperature of a certain chamber, and the electronic air door is controlled to rotate by a stepping motor to realize opening and closing. However, due to the fact that the electronic devices of the whole control system are more, once any device is damaged, the electronic damper cannot be opened and closed normally and timely. In addition, mechanical air doors are used for controlling the air supply amount of a small part of products, but cannot be automatically opened and closed.

Disclosure of Invention

In order to solve the problems, the invention provides an automatic adjustable mechanical air door and a refrigerator.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a but automatically regulated's mechanical air door, includes air door shell, air door gleitbretter and power spare, the air door shell has the ventilation hole that runs through, the air door gleitbretter can with the ventilation hole seals completely. One end of the power part is fixedly connected with the air door sliding sheet, the other end of the power part is fixedly connected with the air door shell, and the power part is made of memory metal.

Further, the power part is a spring, the first air door shell is arranged on the upper side of the ventilation hole and can be matched with a sliding groove of the first air door sliding piece, and the first air door sliding piece can move up and down along the sliding groove. First air door gleitbretter with the ventilation hole all is squarely.

Further, the spout top be equipped with can with the first fixed slot of spring looks adaptation, the top of first air door gleitbretter be equipped with can with the second fixed slot of spring looks adaptation.

Further, the upper end of the spring is fixedly connected to the top of the first fixing groove, and the lower end of the spring is fixedly connected to the bottom of the second fixing groove.

Furthermore, a groove which can be matched with the first air door sliding sheet is formed in the side wall of the vent hole downward along the sliding groove.

Furthermore, a fixed seat with two ends bent downwards is arranged on the upper side of the second air door shell, a fixed shaft which is coaxially arranged along the ventilation holes is fixedly connected between the two bent ends of the fixed seat, and a movable shaft sleeve is sleeved at the front part of the fixed shaft; the power part is a spiral spring.

Furthermore, the second air door sliding piece is approximately in an inverted T shape, the upper end of the second air door sliding piece is provided with a through hole and can be matched and fixedly connected with the shaft sleeve, and the lower end of the second air door sliding piece can be matched with the through hole; the ventilation hole is square.

Furthermore, the inner side end of the rotary spring is fixedly connected with the shaft sleeve, and the outer side end of the rotary spring is fixedly connected with the second air door shell.

Furthermore, the fixed shaft, the shaft sleeve and the spiral spring are coaxially arranged.

A refrigerator comprises a refrigerator body, a refrigerating system and an automatic adjustable mechanical air door arranged in the refrigerator body. The refrigerator body comprises a refrigerating chamber and a freezing chamber, the mechanical air door capable of being automatically adjusted is arranged at an air supply outlet or an air return outlet of the refrigerating chamber, and the freezing chamber is provided with a temperature controller in a refrigerating system to control the opening or closing of the compressor.

The invention has the beneficial effects that: the invention utilizes the thermosensitive characteristic of the memory metal, can automatically open or close the air door according to the temperature, and has exquisite structure and wider application range. The invention realizes functions by simple mechanical linkage, can reduce the use of a complex electronic system, has stable structure and is not easy to damage.

Drawings

Fig. 1 shows an embodiment of the present invention, which is a schematic structural view illustrating an open state of a vent hole.

Fig. 2 is a schematic cross-sectional view of fig. 1.

Fig. 3 is a schematic structural view illustrating a state where the vent hole of fig. 1 is closed.

Fig. 4 is a schematic cross-sectional view of fig. 3.

Fig. 5 is a schematic structural view illustrating an open state of a vent hole according to another embodiment of the present invention.

Fig. 6 is a schematic structural view illustrating a state where the vent holes are closed in fig. 5.

Detailed Description

The invention discloses an automatic adjustable mechanical air door, which comprises an air door shell 1, an air door sliding sheet 2 and a power part, wherein the power part is made of memory metal, and an embodiment of the invention is specifically described below by combining with the accompanying drawings.

Referring to fig. 1 and 2, the damper housing 1 is square and has a square ventilation hole 7 formed therethrough at a lower portion thereof. Air door shell 1 is equipped with the spout 104 that can with air door gleitbretter 2 looks adaptation at the upside in ventilation hole 7, and air door gleitbretter 2 can follow spout 104 and reciprocate. The power part is a spring 3, a first fixing groove 102 which can be matched with the spring 3 is arranged at the top of the sliding groove 104, and a second fixing groove 103 which can be matched with the spring 3 is arranged at the top of the air door sliding piece 2. The upper end of the spring 3 is fixedly connected with the top of the first fixing groove 102, and the lower end of the spring 3 is fixedly connected with the bottom of the second fixing groove 103. And a groove 101 which can be matched with the air door sliding sheet 2 is formed on the side wall of the ventilation hole 7 downwards along the sliding chute 104.

The use mode of the invention is as follows: the spring 3 is made of memory metal and has a thermosensitive characteristic, when the temperature is higher than a certain threshold value, the spring 3 automatically shortens, the air door sliding piece 2 fixedly connected with the lower end of the spring is driven to move upwards along the sliding groove 104, and the ventilation hole 7 is opened. Referring to fig. 3 and 4, when the temperature is lower than a certain threshold, the spring 3 automatically extends to push the air door sliding piece 2 fixedly connected with the lower end of the air door sliding piece to move downwards along the sliding chute 104, and when the lower end of the air door sliding piece 2 moves to the sliding chute 104, the air door sliding piece can move along the groove 101 on the side wall of the vent hole 7 and move to the groove 101 on the lower side wall of the vent hole 7. Air door gleitbretter 2 and recess 101 are mutually supported, can seal ventilation hole 7 completely, avoid leaking out.

Another embodiment of the present invention will be described in detail below with reference to the drawings, and the shape and structure of the damper housing 1 and the damper slide 2 in this embodiment are different from those in the above-described embodiments.

Referring to fig. 5 and 6, the damper housing 1 of the present embodiment is square, and has a fixing base 105 with two ends bent downward on the upper side, and fixing shafts 106 coaxially arranged along the ventilation holes 7 are fixedly connected to the two ends of the fixing base 105 bent downward. A sleeve 107 is sleeved on the front part of the fixed shaft 106, and the sleeve 107 can coaxially rotate around the fixed shaft 106. The air door slip sheet 2 is approximately in an inverted T shape, and the upper end of the air door slip sheet is provided with a through hole. The air door sliding vane 2 is fixedly sleeved at the front part of the shaft sleeve 107 through a through hole. The lower end of the air door sliding blade 2 can be matched with the square ventilation hole 7, and the ventilation hole 7 can be completely closed. The power part is a spiral spring 4, the inner side end of the spiral spring 4 is fixedly connected with the rear part of the shaft sleeve 107, and the outer side end of the spiral spring 4 is fixedly connected with the top of the fixed seat 105 of the air door shell 1. The damper sliding vane 2, the shaft sleeve 107 and the fixed shaft 106 are coaxially arranged.

The use mode of the invention is as follows: the spiral spring 4 is made of memory metal and has a thermosensitive characteristic, when the temperature is higher than a certain threshold value, the spiral spring 4 automatically stretches and contracts to lengthen, so that the shaft sleeve 107 rotates anticlockwise around the fixed shaft 106, the lower end of the air door sliding sheet 2 is driven to swing rightwards to open the ventilation hole 7. When the temperature is lower than a certain threshold value, the spring 3 automatically contracts and shortens, so that the shaft sleeve 107 rotates clockwise around the fixed shaft 106, the lower end of the air door sliding vane 2 is driven to swing leftwards to close the ventilation hole 7. The lower end of the air door sliding sheet 2 can completely close the vent hole 7, so that cold air leakage is avoided.

A refrigerator comprises a refrigerator body, a refrigerating system and an automatic adjustable mechanical air door arranged in the refrigerator body. The box body comprises a refrigerating chamber and a freezing chamber, and the mechanical air door capable of being automatically adjusted is arranged at an air supply outlet or an air return outlet of the refrigerating chamber. The freezing chamber is provided with a temperature controller in a refrigerating system, and the opening or closing of the compressor is controlled through the temperature controller. When the temperature controller monitors that the freezing chamber needs to refrigerate, the compressor and the fan are controlled to be started, and when the temperature controller detects that the freezing chamber does not need to refrigerate, the compressor and the fan are controlled to be closed. When the temperature in the refrigerating chamber rises to a certain temperature and needs to be refrigerated, the mechanical air door capable of being automatically adjusted is opened; if the compressor and the fan are in a closed state at the moment, the mechanical damper capable of automatically adjusting is continuously opened until the refrigerating chamber needs to be refrigerated. When the refrigerating chamber starts to refrigerate, the compressor and the fan are started, cold air enters the refrigerating chamber through the air door, when the temperature in the refrigerating chamber is reduced to a certain temperature value, the mechanical air door capable of being automatically adjusted is automatically closed, and then the temperature in the refrigerating chamber starts to rise.

In addition, the refrigerator or freezer with automatic defrosting function can be applied to the refrigerator or freezer with automatic defrosting function by simply and reversely using the mechanical air door capable of being automatically adjusted. The reverse use is that the mechanical air door which can be automatically adjusted is closed when the temperature is higher than a certain temperature, and the mechanical air door which can be automatically adjusted is opened when the temperature is lower than the certain temperature. The mechanical air door capable of being automatically adjusted is arranged at the front and rear positions of the evaporator cavity, when defrosting is carried out, the memory metal senses that the temperature is higher than a threshold value according to the self heat-sensitive characteristic, the mechanical air door capable of being automatically adjusted is automatically closed, and hot gas can be prevented from flowing into a food chamber; when defrosting or refrigerating is stopped, when the memory metal senses that the temperature is lower than the threshold value, the mechanical air door capable of being automatically adjusted is automatically opened, the refrigerator enters a normal refrigerating process, the energy loss in defrosting and defrosting recovery periods can be reduced in the whole process, the temperature rise of food is reduced, and the fresh-keeping quality of the food is improved.

It is noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "connected," "secured," "intermediate," and the like are to be construed broadly; terms such as "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, are only terms of relationships determined to describe structural relationships of the components of the present invention, are not intended to refer to any components of the present invention, and are not to be construed as limiting the present invention.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims

1. The utility model provides a but automatically regulated's mechanical damper which characterized in that:

the air door structure comprises an air door shell (1), an air door sliding sheet (2) and a power part, wherein the air door shell (1) is provided with a through ventilation hole (7), and the ventilation hole (7) can be completely closed by the air door sliding sheet (2);

one end of the power part is fixedly connected with the air door sliding sheet (2), the other end of the power part is fixedly connected with the air door shell (1), and the power part is made of memory metal.

2. An automatically adjustable mechanical damper according to claim 1, wherein: the power part is a spring (3), a sliding groove (104) which can be matched with the air door sliding piece (2) is formed in the air door shell (1) on the upper side of the ventilation hole (7), and the air door sliding piece (2) can move up and down along the sliding groove (104);

the air door sliding sheet (2) and the ventilation holes (7) are square.

3. An automatically adjustable mechanical damper according to claim 2, further comprising: the top of the sliding groove (104) is provided with a first fixing groove (102) matched with the spring (3), and the top of the air door sliding sheet (2) is provided with a second fixing groove (103) matched with the spring (3).

4. An automatically adjustable mechanical damper according to claim 3, wherein: the upper end of the spring (3) is fixedly connected to the top of the first fixing groove (102), and the lower end of the spring (3) is fixedly connected to the bottom of the second fixing groove (103).

5. An automatically adjustable mechanical damper according to claim 2, further comprising: and a groove (101) which can be matched with the air door sliding sheet (2) is arranged on the side wall of the vent hole (7) which is downward along the sliding groove (104).

6. An automatically adjustable mechanical damper according to claim 1, wherein: the upper side of the air door shell (1) is provided with a fixed seat (105) with two ends bent downwards, a fixed shaft (106) which is coaxially arranged along the ventilation hole (7) is fixedly connected between the two bent ends of the fixed seat (105), and the front part of the fixed shaft (106) is sleeved with a movable shaft sleeve (107); the power part is a spiral spring (4).

7. An automatically adjustable mechanical damper according to claim 6, further comprising: the air door sliding blade (2) is approximately in an inverted T shape, the upper end of the air door sliding blade is provided with a through hole and can be matched and fixedly connected with the shaft sleeve (107), and the lower end of the air door sliding blade (2) can be matched with the ventilation hole (7); the ventilation hole (7) is square.

8. An automatically adjustable mechanical damper according to claim 7, wherein: the inner side end of the rotary spring (4) is fixedly connected with the shaft sleeve (107), and the outer side end of the rotary spring (4) is fixedly connected with the air door shell (1).

9. An automatically adjustable mechanical damper according to claim 8, further comprising: the fixed shaft (106), the shaft sleeve (107) and the spiral spring (4) are coaxially arranged.

10. A refrigerator comprising a cabinet, a refrigeration system and an automatically adjustable mechanical damper as claimed in any one of claims 1 to 9 disposed in the cabinet, wherein:

the refrigerator body comprises a refrigerating chamber and a freezing chamber, the mechanical air door capable of being automatically adjusted is arranged at an air supply outlet or an air return outlet of the refrigerating chamber, and the freezing chamber is provided with a temperature controller in a refrigerating system to control the opening or closing of the compressor.