CN117553478A

CN117553478A - Refrigerator with a refrigerator body

Info

Publication number: CN117553478A
Application number: CN202210927351.1A
Authority: CN
Inventors: 仲鲁泉; 张守江; 陈树材; 阚涛
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2024-02-13

Abstract

The invention provides a refrigerator, which comprises a compressor system, a defrosting system, a temperature control switch and a circuit regulator, wherein the circuit regulator comprises a fixed part, a first connecting part and a second connecting part which are arranged on the fixed part from bottom to top at intervals, an electromagnet which is arranged in the fixed part and can move along the axial direction, and a magnetic substance arranged below the electromagnet, the electromagnet has a first state of being connected with the defrosting system and the temperature control switch in series on a refrigerator power supply through the first connecting part, and a second state of being connected with the refrigerator power supply in series through the second connecting part and the compressor system, and in the first state, when the temperature of the temperature control switch is higher than a first threshold value, the temperature control switch is disconnected to enable the electromagnet to move away from the magnetic substance to the second state. The invention solves the problems of overlong heating time and electric energy waste of the existing refrigerator defrosting device with preset heating time.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to the field of refrigeration equipment manufacturing, in particular to a refrigerator.

Background

The mechanical refrigerators in the market at present commonly have the phenomenon of frosting of a freezing chamber, in particular to a single-door refrigerator and a two-door refrigerator, and the frosting problem of the freezing chamber is very serious. After a user uses the refrigerator for a period of time, the surface of the inner container of the refrigerating chamber can be combined with a layer of thick frost, so that the energy consumption loss is greatly increased, and the user experience is influenced.

At present, a refrigerator defrosting device with a one-key defrosting function on the market generally controls the defrosting effect inside the refrigerator by presetting the heating time of a heating wire. In the actual defrosting process, the problem that the heating time of the heating wire is too long may exist, namely, the frost in the refrigerator is already melted, but the heating wire is still in a working state, and further, resource waste is caused.

Therefore, the existing refrigerator with one-key defrosting has the problem that the electric power is wasted due to overlong heating time of the heating wire.

Disclosure of Invention

The invention aims to provide a refrigerator so as to solve the problems that when frost in the refrigerator is already melted, a heating wire is still in a working state, and electric energy is wasted due to overlong heating time of the heating wire.

In order to achieve the above object of the present invention, an embodiment of the present invention provides a refrigerator including a compressor system, a defrosting system, a temperature control switch, and a circuit dispenser including a fixed portion, first and second connection portions provided at intervals from bottom to top on the fixed portion, an electromagnet provided in the fixed portion to be movable in an axial direction, and a magnetic substance provided below the electromagnet, the electromagnet having a first state of being connected to a refrigerator power supply in series with the defrosting system through the first connection portion, the temperature control switch, and a second state of being connected to the refrigerator power supply in series with the compressor system through the second connection portion, in which the temperature control switch is turned off to move the electromagnet away from the magnetic substance to the second state when a temperature of the temperature control switch is higher than a first threshold value.

As a further improvement of an embodiment of the present invention, the electromagnet includes a magnetic core and a coil sleeved on the magnetic core, and a first contact and a second contact are provided at two ends of the coil, and in the first state, the first contact and the second contact are electrically connected to the first connection portion, and in the second state, the first contact and the second contact are electrically connected to the second connection portion.

As a further improvement of an embodiment of the present invention, wherein the fixing portion includes a cylindrical housing having one end opened, the electromagnet is provided in the cylindrical housing, the magnetic substance is fixedly connected to an inner bottom wall of the cylindrical housing, the first connecting portion includes a first conductive post and a second conductive post oppositely provided through a side wall of the cylindrical housing, the second connecting portion includes a third conductive post and a fourth conductive post oppositely provided through a side wall of the cylindrical housing, in the first state, the first contact and the second contact are connected to one ends of the first conductive post and the second conductive post in the cylindrical housing, respectively, and in the second state, the first contact and the second contact are connected to one ends of the third conductive post and the fourth conductive post in the cylindrical housing, respectively.

As a further improvement of an embodiment of the present invention, the fixing portion further includes a spring disposed in the cylindrical housing, one end of the spring is connected to the magnetic substance, and the other end is connected to a lower section of the side wall of the magnetic core.

As a further improvement of an embodiment of the present invention, the magnetic core is configured as a cylinder, two clamping parts which are set up oppositely are connected to the side wall of the cylinder-shaped magnetic core, and the first contact and the second contact are located on the end faces of the two clamping parts far away from the cylinder magnetic core.

As a further improvement of an embodiment of the invention, the defrosting system comprises a heating wire and a defrosting fuse connected in series.

As a further improvement of an embodiment of the present invention, the fusing temperature of the defrosting fuse is 60-70 degrees.

As a further improvement of an embodiment of the present invention, the first threshold value is lower than a fusing temperature of the defrosting fuse.

As a further improvement of an embodiment of the invention, the device further comprises a box body and an evaporator arranged in the box body, wherein the heating wire is wound on the evaporator.

As a further improvement of an embodiment of the present invention, wherein the compressor system comprises a compressor, a compressor protector and a temperature controller connected in series, the compressor protector being disconnectable from electrical connection with the compressor when the current in the compressor is greater than a second threshold value.

Compared with the prior art, the invention has the beneficial effects that:

an electromagnet capable of moving up and down along the axial direction is arranged in the fixed part, and a magnetic substance is arranged below the electromagnet; the electromagnet is connected to a refrigerator power supply in series through the first connecting part, the defrosting system and the temperature control switch, so that defrosting of the refrigerator is realized; when the temperature on the temperature control switch is greater than a first threshold value, the temperature control switch is disconnected to enable the electromagnet to be powered off, then the electromagnet is connected with the second connecting portion and connected to a refrigerator power supply in series through the second connecting portion and the compressor system, so that the operation of the refrigerator compressor is restored, the automatic restoration operation after the defrosting of the refrigerator is completed is realized through the arrangement, and the problems of overlong heating time and power waste of heating wires in the defrosting system are solved.

Drawings

FIG. 1 is a schematic circuit diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a circuit adapter according to an embodiment of the invention;

FIG. 3 is a top view of the circuit adapter of FIG. 2;

fig. 4 is a cross-sectional view of fig. 3 in the direction a.

The above description of the drawings includes the following reference numerals:

1. a temperature control switch;

2. a circuit adapter; 21. a fixing part; 211. a cylindrical housing; 212. a spring; 22. a first connection portion; 221. a first conductive pillar; 222. a second conductive post; 23. a second connecting portion; 231. a third conductive post; 232. a fourth conductive post; 24. an electromagnet; 241. a magnetic core; 2411. a clamping part; 242. a coil; 2421. a first contact; 2422. a second contact; 25. a magnetic substance;

3. a heating wire; 4. a defrosting fuse; 5. a compressor; 6. compressor protector 7, temperature controller.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

In order to solve the problem that in the prior art, when frost in the refrigerator is already melted, the heating wire is still in a working state, so that the heating wire is excessively long in heating time and electric energy is wasted.

An embodiment of the present invention provides a refrigerator, wherein the refrigerator comprises a compressor system, a defrosting system, a temperature control switch 1, and a circuit dispenser 2, wherein the circuit dispenser 2 comprises a fixed part 21, a first connecting part 22 and a second connecting part 23 which are arranged on the fixed part at intervals from bottom to top, an electromagnet 24 which is arranged in the fixed part 21 and can move along the axial direction, and a magnetic substance 25 arranged below the electromagnet 24, as shown in fig. 1, the electromagnet 24 has a first state of being connected to a refrigerator power supply in series with the defrosting system through the first connecting part 22, and a second state of being connected to the refrigerator power supply in series with the compressor system through the second connecting part 23, and in the first state, when the temperature of the temperature control switch 1 is higher than a first threshold value, the temperature control switch 1 is turned off to enable the electromagnet 24 to move away from the magnetic substance 25 to the second state.

With the above arrangement, in the first state, the electromagnet 24 is connected to the refrigerator power supply in series with the defrosting system and the temperature control switch 1 through the first connecting portion 22, the electromagnet 24 attracts the magnetic substance 25 disposed thereunder after being energized, and the electromagnet 24 is disposed in the fixing portion 21 and receives a first acting force opposite to the attraction of the magnetic substance 25 to the electromagnet 24. It will be appreciated that when in said first state, the electromagnet 24 is in equilibrium with the force in which the defrosting system starts to heat the inside of the refrigerator, and when the temperature on the thermostatic switch 1 reaches a first threshold, which is generally a preset empirical value, different setting values of the first threshold can be obtained correspondingly, depending on the thermal energy required for defrosting the inside of the refrigerator.

When the temperature on the temperature controlled switch 1 reaches a first threshold value, it is indicated that sufficient heat has been taken up inside the refrigerator. Therefore, when the temperature of the temperature controlled switch 1 is higher than the first threshold, the temperature controlled switch 1 will be turned off, and the magnetism of the electromagnet 24 will also disappear due to being turned off. Thus, after de-energization the electromagnet 24 moves away from the magnetic substance 25 under the first force. It can be understood that the defrosting system is not electrified and heated in the off state in the process, but the defrosting system can further transmit the waste heat into the refrigerator, so that the frost in the refrigerator can be fully melted, and the waste heat of the defrosting system can be fully utilized and the electric energy can be saved.

The electromagnet 24 moves to a second state in which the electromagnet 24 is connected to the refrigerator power supply in series with the compressor system through the second connection part 23 during the movement of the electromagnet away from the magnetic substance 25 under the action of the first force, and the compressor system is restarted and operated in the second state, so that the automatic restarting of the refrigerator is realized during the process. In the second state, the electromagnet 24 is energized again, and thus is also magnetized again, and is attracted again to the magnetic substance 25. It will be appreciated that since the distance between the electromagnet 24 and the magnetic substance 25 becomes longer, the attraction force between the electromagnet 24 and the magnetic substance 25 is smaller in the second state than in the first state, and that the fixing portion 21 also provides a second force opposite to the attraction force between the electromagnet 24 and the magnetic substance 25 to bring the electromagnet 24 into the force balance state, it will be appreciated that the second force is smaller than the first force.

Further, the electromagnet 24 includes a magnetic core 241 and a coil 242 sleeved on the magnetic core, wherein a first contact 2421 and a second contact 2422 are disposed at two ends of the coil 242, in the first state, the first contact 2421 and the second contact 2422 are electrically connected with the first connection portion 22, and in the second state, the first contact 2421 and the second contact 2422 are electrically connected with the second connection portion 22.

It will be appreciated that the first contact 2421 and the second contact 2422 can move up and down in the axial direction within the fixed portion 21 as part of the electromagnet 24, and that the first connection portion 22 and the second connection portion 23 are located on the locus of up and down movement of the first contact 2421 and the second contact 2422, so that the first connection portion 22 and the second connection portion 23 are in the first state or the second state in cooperation with the first contact 2421 and the second contact 2422.

Further, the fixing portion 21 includes a cylindrical housing 211 having one end opened, the electromagnet 24 is disposed in the cylindrical housing 211, the magnetic substance 25 is fixedly connected to an inner bottom wall of the cylindrical housing 211, the first connecting portion 22 includes a first conductive post 221 and a second conductive post 222 oppositely disposed through a sidewall of the cylindrical housing, the second connecting portion 23 includes a third conductive post 231 and a fourth conductive post 232 oppositely disposed through a sidewall of the cylindrical housing 211, in the first state, the first contact 2421 and the second contact 2422 are respectively connected to one ends of the first conductive post 221 and the second conductive post 222 in the cylindrical housing 211, and in the second state, the first contact 2421 and the second contact 2422 are respectively connected to one ends of the third conductive post 231 and the fourth conductive post 232 in the cylindrical housing 211.

Further, the fixing portion 21 further includes a spring 212 disposed in the cylindrical housing 211, one end of the spring 212 is connected to the magnetic substance 25, and the other end is connected to the lower section of the side wall of the magnetic core 241, and it is understood that the spring 212 can provide the electromagnet 24 with the aforementioned first force and the second force by adjusting the compression deformation amount thereof, and the deformation amount of the spring 212 when the first force is generated is larger than the deformation amount when the second force is generated. The electromagnet 24 can move up and down in the axial direction due to the cooperation of the spring 212 and the magnetic substance 25.

As a preferred manner, the magnetic core 241 is configured in a cylindrical shape, two opposite clamping portions 2411 are connected to the side wall of the cylindrical magnetic core 241, and the first contact 2421 and the second contact 2422 are located on the end surfaces of the two clamping portions 2411 away from the cylindrical magnetic core 241, so that the first contact 2421 and the second contact 2422 can be better matched and contacted when being matched with the first conductive post 221 and the second conductive post 222 and the third conductive post 231 and the fourth conductive post 232.

As a preferred way, the defrosting system comprises a heating wire 3 and a defrosting fuse 4 connected in series. The defrosting fuse 4 can play a certain role in protecting the heating wire 3, when the temperature control switch 1 loses the function, the defrosting fuse 4 can further play a role in protecting a defrosting system, and when the temperature on the defrosting system further rises, the defrosting fuse 4 can break a circuit of the defrosting system.

Further, the fusing temperature of the defrosting fuse 4 is 60-70 degrees, the first threshold is lower than the fusing temperature of the defrosting fuse 4, and it can be understood that the opening and closing of the circuit of the defrosting system are mainly controlled by the temperature control switch 1, and the defrosting fuse 4 can be used as a further protection device to control the opening and closing of the circuit only when the temperature control switch fails.

Further, the refrigerator further comprises a refrigerator body and an evaporator arranged in the refrigerator body, and the heating wire 3 is wound on the evaporator, so that a defrosting effect can be better achieved.

Further, the compressor system comprises a compressor 5, a compressor protector 6 and a temperature controller 7 connected in series, wherein when the current in the compressor 5 is greater than a second threshold, the compressor protector can disconnect the electrical connection with the compressor to prevent the compressor 5 from burning out due to excessive heat on the compressor 5.

In summary, the following technical effects are achieved by the embodiments of the present invention:

by providing an electromagnet 24 movable up and down in the axial direction in the fixed portion 21, and providing a magnetic substance 25 below the electromagnet 24; the electromagnet 24 is connected to a refrigerator power supply in series with the defrosting system and the temperature control switch 1 through the first connecting part 22, so that defrosting of the refrigerator is realized; when the temperature on the temperature control switch 1 is greater than a first threshold value, the temperature control switch is turned off to enable the electromagnet 24 to be powered off, then the electromagnet is connected with the second connecting portion 23 and connected with the refrigerator power supply in series through the second connecting portion 23 and the compressor system to restore the operation of the refrigerator compressor, the automatic restoration operation after the defrosting of the refrigerator is completed is realized through the arrangement, and the problems of overlong heating time and power waste of heating wires in the defrosting system are solved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigerator characterized by comprising a compressor system, a defrosting system, a temperature control switch (1) and a circuit dispenser (2), wherein the circuit dispenser (2) comprises a fixed part (21), a first connecting part (22) and a second connecting part (23) which are arranged on the fixed part at intervals from bottom to top, an electromagnet (24) which is arranged in the fixed part (21) and can move along the axial direction, and a magnetic substance (25) which is arranged below the electromagnet (24), the electromagnet (24) has a first state of being connected to a refrigerator power supply in series through the first connecting part (22) and the defrosting system and the temperature control switch (1), and a second state of being connected to the refrigerator power supply in series through the second connecting part (23) and the temperature control switch (1) is disconnected when the temperature of the temperature control switch (1) is higher than a first threshold value, so that the electromagnet (24) moves away from the magnetic substance (25) to the second state.

2. The refrigerator according to claim 1, wherein the electromagnet (24) comprises a magnetic core (241) and a coil (242) sleeved on the magnetic core, a first contact (2421) and a second contact (2422) are arranged at two ends of the coil (242), the first contact (2421) and the second contact (2422) are electrically connected with the first connection part (22) in the first state, and the first contact (2421) and the second contact (2422) are electrically connected with the second connection part (23) in the second state.

3. The refrigerator according to claim 2, wherein the fixing portion (21) includes a cylindrical housing (211) having one end opened, the electromagnet (24) is disposed in the cylindrical housing (211), the magnetic substance (25) is fixedly connected to an inner bottom wall of the cylindrical housing (211), the first connecting portion (22) includes a first conductive post (221) and a second conductive post (222) oppositely disposed through a side wall of the cylindrical housing, the second connecting portion (23) includes a third conductive post (231) and a fourth conductive post (232) oppositely disposed through a side wall of the cylindrical housing (211), the first contact (2421) and the second contact (2422) are respectively connected to one ends of the first conductive post (221) and the second conductive post (222) located in the cylindrical housing (211), and the first contact (2421) and the second contact (2422) are respectively connected to one ends of the third conductive post (231) and the fourth conductive post (232) located in the cylindrical housing (211) in the first state.

4. A refrigerator according to claim 3, wherein the fixing portion (21) further comprises a spring (212) provided in the cylindrical housing (211), one end of the spring (212) being connected to the magnetic substance (25), and the other end being connected to a lower section of the side wall of the magnetic core (241).

5. The refrigerator according to claim 4, wherein the magnetic core (241) is provided in a cylindrical shape, two opposite clamping portions (2411) are connected to a side wall of the cylindrical magnetic core (241), and the first contact (2421) and the second contact (2422) are located on end surfaces of the two clamping portions (2411) away from the cylindrical magnetic core (241).

6. The refrigerator according to claim 1, characterized in that the defrosting system comprises a heating wire (3) and a defrosting fuse (4) connected in series.

7. The refrigerator according to claim 6, characterized in that the melting temperature of the defrosting fuse (4) is 60-70 degrees.

8. The refrigerator according to claim 7, characterized in that the first threshold value is lower than the fusing temperature of the defrosting fuse (4).

9. The refrigerator according to claim 6, further comprising a cabinet and an evaporator provided in the cabinet, wherein the heating wire (3) is wound around the evaporator.

10. The refrigerator according to claim 1, characterized in that the compressor system comprises a compressor (5), a compressor protector (6) and a temperature controller (7) connected in series, which compressor protector is disconnectable from electrical connection with the compressor when the current in the compressor (5) is greater than a second threshold value.