WO2021174704A1

WO2021174704A1 - Power line device and combination system having at least one household appliance

Info

Publication number: WO2021174704A1
Application number: PCT/CN2020/094087
Authority: WO
Inventors: 李军平; 杨龙; 唐培田
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2020-03-02
Filing date: 2020-06-03
Publication date: 2021-09-10
Also published as: CN111342312A; EP4117126A4; EP4117126A1

Abstract

A power line device and a combination system having at least one household appliance. The power line device is used for supplying power to the at least one household appliance and comprises a plug line (20) and a first line body (22) electrically connected to the plug line (20) in a pluggable mode. A plug (24) used for being connected to an external power source in a plugged mode is arranged at a first end of the plug line (20), the first line body (22) comprises a first plug interface (26) and a first power interface (28) in electrical communication with the first plug interface (26), and the first plug interface (26) is electrically connected to a second end of the plug line (20) in a pluggable mode. The power line device and the combination system having the at least one household appliance are low in cost and simple and compact in structure.

Description

Power cord device and combined system with at least one household appliance

Technical field

The invention relates to a power cord device and a combined system with at least one household appliance.

Background technique

At present, when multiple refrigerators are used in combination, in order to supply power to the multiple refrigerators, it is necessary to provide multiple sockets, or additionally be equipped with a power strip with multiple sockets. This makes the manufacturing cost higher. Moreover, in order to control the refrigeration of each refrigerator, a temperature sensor that senses the ambient temperature needs to be set outside each refrigerator. And usually, the temperature sensor is set on the box and located on the outside of the box. The ambient temperature sensed by the temperature sensor is transmitted to the control system. The control system then transmits corresponding control commands to the refrigeration system according to the ambient temperature. Different control commands perform corresponding refrigeration. In this way, the inside of the cabinet of each refrigerator needs to lead out the signal line separately, the temperature sensor is connected to the end of the signal line and the temperature sensor is arranged on the cabinet. This setting not only makes the cost higher, the structure is very complicated, and the installation is inconvenient, and the temperature sensed by the temperature sensor will be affected by the cabinet, so the temperature sensed by the temperature sensor is not close enough to the ambient temperature, resulting in the refrigeration control of the refrigerator It cannot be adjusted completely according to the ambient temperature, which makes the refrigerator not energy-saving enough.

Summary of the invention

The purpose of the present invention is to provide a power cord device and a combined system with at least one household appliance, which makes the cost lower and the structure simpler and more compact.

In order to achieve one of the above-mentioned objectives of the invention, an embodiment of the present invention provides a power cord device for supplying power to at least one household appliance, wherein the power cord device includes a plug cord and a ground that is pluggable with the plug cord. A first wire body electrically connected, the first end of the plug cord is provided with a plug for plugging in an external power source, and the first wire body includes a first plug-in interface and a first plug-in interface electrically connected to the first plug-in interface. A power interface, the first plug interface is pluggably electrically connected with the second end of the plug wire.

As a further improvement of the embodiment of the present invention, the first plug-in interface and the first power interface are configured to be compatible.

As a further improvement of the embodiment of the present invention, the first wire body extends into the first household appliance to supply power to the first household appliance, and the power cord device further includes a first pluggable and electrically connected to the first power interface. The second wire body extends into the second household appliance to supply power to the second household appliance.

As a further improvement of the embodiment of the present invention, the second wire body includes a second plug-in interface and a second power interface electrically connected to the second plug-in interface, and the second plug-in interface and the first power interface can be Plug and unplug the ground electrical connection.

As a further improvement of the embodiment of the present invention, the first plug-in interface and the second plug-in interface have the same structural form, and the first power interface and the second power interface have the same structural form.

As a further improvement of the embodiment of the present invention, the first wire body further includes a protective cover for opening or closing the first power interface.

As a further improvement of the embodiment of the present invention, the power cord device further includes an environmental parameter recognizer, and the environmental parameter recognizer is used to collect environmental parameters outside the household appliance.

As a further improvement of the embodiment of the present invention, the environmental parameter identifier is arranged on the plug wire.

In order to achieve one of the above-mentioned objects of the invention, another embodiment of the present invention also provides a combined system with at least one household appliance. The combined system includes a first household appliance, and the first household appliance includes a cabinet and The power cord device for supplying power to the first household appliance, wherein the power cord device includes a plug wire, a first wire body that is pluggable and electrically connected to the plug wire, and the first wire body is provided with The first wire body is fixed to the wire body fixing structure of the box body, the first end of the plug wire is provided with a plug for plugging in an external power source, and the first wire body includes a first plug-in interface and The first power interface is electrically connected with the first plug-in interface, and the first plug-in interface is electrically connected to the second end of the plug wire in a pluggable manner.

As a further improvement of the embodiment of the present invention, the combined system further includes a second household appliance, the power cord device further includes a second wire body that is pluggably electrically connected to the first power interface, and the second wire body Extending into the second household appliance to supply power to the second household appliance.

Compared with the prior art, the present invention has the beneficial effect that: because the first plug-in interface of the first wire body is electrically connected to the plug wire, so that an external power source can be connected, and the first power interface of the first wire body It can supply power to another household appliance, so that one external power socket can supply power to multiple household appliances. In addition, the power cord device is provided with an environmental parameter recognizer, which can collect environmental parameters such as environmental temperature and/or environmental humidity, without the need to separately set corresponding signal lines, environmental parameter recognizers and installation structures, so that The structure is simpler and the installation is convenient. Furthermore, the collected environmental parameters can be used by multiple household appliances, making the structure simpler, more compact, and lower in cost.

Description of the drawings

Figure 1 is a rear view of a power cord device in a specific embodiment of the present invention;

FIG. 2 is a three-dimensional schematic diagram of the power cord device in FIG. 1;

Fig. 3 is a partial enlarged schematic diagram of A in Fig. 2;

FIG. 4 is a three-dimensional exploded schematic diagram of the power cord device in FIG. 1;

Fig. 5 is a partial enlarged schematic diagram of B in Fig. 4.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and the structural, method, or functional changes made by those skilled in the art based on these embodiments are all included in the protection scope of the present invention.

In the description of the specific embodiments of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner" The azimuth or positional relationship indicated by "" and "outside" is based on the azimuth or positional relationship shown in the drawings, or the description terms for the mutual positional relationship of each component in the vertical, vertical or gravitational direction. The vertical direction refers to It is the up and down direction on the paper as shown in the figure; "inside, outside" usually refers to the inside and outside of the cavity relative to the cavity.

As shown in Figures 1 to 5, the specific embodiment of the present invention discloses a combined system with at least one household appliance. The household appliance in this embodiment can be any household appliance or multiple household appliances that require a power cord device. Household appliances such as refrigerators, freezers, washing machines, air conditioners, microwave ovens or ovens. The multiple types here refer to two or more than two types. Preferably, the household appliance is any type of smart/smart household appliance. Specifically, in this embodiment, the household appliance is a refrigerator.

The combined system includes a first household appliance, and the first household appliance includes a cabinet. The box has a chamber, and the chamber can be divided into different numbers of compartments as needed. The invention also discloses a power cord device for supplying power to household appliances. One end of the power cord device extends into the box, and the other end of the power cord device is connected to an external power source.

The power cord device is used for supplying power to at least one household appliance, and at least one household appliance can be set as the same kind of household appliance, or can be set as different kinds of household appliances.

The power cord device includes a plug cord 20 and a first cord body 22 that is pluggable and electrically connected to the plug cord 20. The first end of the plug cord 20 is provided with a plug 24 for plugging in an external power source. The first cord body 22 includes a A plug-in interface 26 and a first power interface 28 electrically connected to the first plug-in interface 26, and the first plug-in interface 26 is electrically connected to the second end of the plug cord 20 in a pluggable manner. Further, the second end of the plug cord 20 is provided with a mating interface 27 that is inserted into the first plug interface 26 to electrically connect the plug cord 20 and the first wire body 22. In addition, the first wire body 22 is provided with a wire body fixing structure 30 for fixing the first wire body 22 to the box body.

In this preferred embodiment, since the first plug-in interface 26 of the first wire body 22 is electrically connected to the plug wire 20 in a pluggable manner, an external power source can be connected, and the first power interface 28 of the first wire body 22 can be provided with another One household appliance is powered, so that one external power socket can supply power to multiple household appliances.

The first wire body 22 extends into the first home appliance to supply power to the first home appliance. The combined system also includes a second home appliance. The power cord device also includes a second wire body (not (Illustration), the second wire body extends into the second household appliance to supply power to the second household appliance.

Further, the second wire body includes a second plug-in interface and a second power interface electrically connected to the second plug-in interface, and the second plug-in interface is electrically pluggably connected to the first power interface 28. Preferably, the first plug-in interface 26 and the first power interface 28 are configured to be compatible. With this arrangement, the structural form of the second plug-in interface can be set to be the same as the structural form of the first plug-in interface 26. The structure of the second power interface is set to be the same as the structure of the first power interface 28. This makes the structure of the entire power cord device simpler.

Of course, according to the number of household appliances that need to be powered, the power cord device provides more cords, the second cord is plugged into the first cord 22, and the third cord is plugged into the second power interface of the second cord. , The fourth wire body is plugged into the third wire body, and so on. The number of household appliances is the same as the number of wires.

The first wire body 22 also includes a protective cover 38 for opening or closing the first power interface 28. In this way, when only one household appliance is arranged in the combined system, the protective cover 38 can be placed in a closed state, thereby closing the first power interface 28 to prevent the first power interface 28 from being touched, which is safer.

In order to ensure that the first wire body 22 and the second wire body are not affected by space and are more convenient for plugging, the opening direction of the first plug port 26 and the direction of the first power port 28 are set to be perpendicular to each other.

In this preferred embodiment, when the protective cover 38 is opened, the protective cover 38 is completely detached from the first power interface 28, that is, the protective cover 38 is completely separated from the first wire body 22, and when the second wire body is unplugged After that, the protective cover 38 can be installed at the first power interface 28 of the first wire body 22. Of course, in order to prevent the protective cover 38 from being lost, the protective cover 38 can also be configured such that when the protective cover 38 is opened, the protective cover 38 is not separated from the first wire body 22, and the protective cover 38 has an open state and a closed state. Operable to move between the open state and the closed state. When the protective cover 38 is moved to the open state, the second wire body can be plugged in. After the second wire body is unplugged, the protective cover 38 can be operated to move it to the closed state. Preferably, the protective cover 38 can be operatively rotated between the open state and the closed state, so as to realize the transition between the open state and the closed state.

Further, the protective cover 38 is snap-connected to the first wire body 22, the protective cover 38 is an injection molded part, and the protective cover 38 has a raised buckle part. The injection molded part has a certain elasticity to buckle the protective cover 38 in First line body 22.

The power cord device further includes an environmental parameter recognizer 40, which is used to collect environmental parameters outside the household appliance. The refrigerator also includes a control system and a refrigeration system connected with the control system. The environmental parameters collected by the environmental parameter recognizer 40 are transferred to the control system, and the control system receives and analyzes the environmental parameters, and then generates corresponding control commands according to the different environmental parameters. The above control commands are transferred to the refrigeration system, and the refrigeration system according to different control commands Perform corresponding refrigeration or other operations. In addition, other household appliances may also include other corresponding control systems and other execution systems connected to the control system. The control system also receives the aforementioned environmental parameters, and the execution system also executes corresponding operations according to different instructions issued by the control system.

In this preferred embodiment, since the power cord device is provided with an environmental parameter recognizer 40, the environmental parameter recognizer 40 can collect environmental parameters such as environmental temperature and/or environmental humidity, and there is no need to separately set corresponding signal lines and environmental parameter recognition. The device 40 and the installation structure make the structure simpler and easy to install. In addition, the environmental parameter recognizer 40 will not be affected by the temperature of the cabinet, and the collected environmental parameters truly reflect the environment outside the cabinet, making the collected environmental parameters more accurate. So that the control system can better perform specific control according to the external environment. Furthermore, the collected environmental parameters can be used by multiple household appliances, making the structure simpler, more compact, and lower in cost.

Preferably, the environmental parameter identifier 40 is provided on the plug cord 20. This arrangement makes the arrangement of the signal transmission line of the environmental parameter identifier 40 easier. Further, the environmental parameter identifier 40 is arranged adjacent to the plug 24. Of course, the environmental parameter identifier 40 can also be arranged at other positions of the plug cord 20, such as being arranged closer to the first plug-in interface 26. In addition, the environmental parameter recognizer 40 is made farther away from the cabinet, and the collected environmental parameters are more accurate. The environmental parameter identifier 40 includes a temperature sensor and/or a humidity sensor. In other words, the environmental parameter identifier 40 may be configured to include sensors that collect only one parameter, or it may be configured to include multiple sensors that collect two or more parameters.

The wire fixing structure 30 is fixed to the box, and the environmental parameter identifier 40 is located outside the box. Usually, a fixing hole is provided on the box body, and the wire body passes through the fixing hole. In order to make the fixing of the wire body more firm, part of the solid structure of the wire body can extend into the fixing hole. Of course, the wire fixing structure 30 can also be arranged to be completely outside the fixing hole. A detachable fastening structure such as bolts can be used to fix the line body fixing structure 30 to the box body. Of course, the line body fixing structure 30 can also be glued to the outside of the box body by gluing. Removable usually means that the corresponding structure can be disassembled with or without tools under the premise of not damaging the components.

The environmental parameter identifier 40 is detachably installed in the power cord device. Specifically in this embodiment, the environmental parameter identifier 40 is detachably disposed on the plug cord 20.

In order to be safer and more reliable, a cover 41 for at least partially covering the environmental parameter identifier 40 is provided on the plug cord 20. When the environmental parameter recognizer 40 is replaced, the cover 41 can be opened. After the environmental parameter recognizer 40 is replaced, the cover 41 can cover the environmental parameter recognizer 40.

Further, the cover 41 is snap-connected to the plug cord 20, the cover 41 is an injection molded part, and the cover 41 has a raised buckle part. The injection molded part has a certain elasticity to buckle the cover 41 to the plug cord. 20. In addition, in order to make the environmental parameter recognizer 40 more sensitive and the collected parameters more accurate, the cover 41 is provided with a plurality of through holes 43. Specifically, the plurality of through holes 43 are arranged at intervals along the extension direction of the plug cord 20.

Of course, the environmental parameter recognizer 40 can also be integrated into the power cord device, that is, it is not removable. The non-detachable here means that it cannot be disassembled without damaging the power cord device with or without tools, that is, if the environmental parameter identifier 40 is to be removed, the power cord device must be damaged.

When the environmental parameter recognizer 40 is set to be non-detachable, the plug cord 20 includes a power wire and a protective cover covering the power wire, and the environmental parameter recognizer 40 is covered in the protective cover. The protective cover extends along the extension direction of the power wire and completely covers the power wire, so the environmental parameter identifier 40 cannot be disassembled.

The first wire body 22 also includes a signal connector 42. The signal connector 42 and the environmental parameter recognizer 40 are located on both sides of the wire body fixing structure 30, and the environmental parameter recognizer 40 is electrically connected to the signal connector 42, and the signal connector 42 is pluggably connected. In the control system. The first wire body 22 also includes a positive terminal 44, a negative terminal 46 and a neutral terminal 48.

In addition, according to needs, the second wire body can be set to have the same structure and configuration as the first wire body 22, except that the specific wire harness length is different. Of course, the structure and configuration of the second wire body and the first wire body 22 can also be set to be different.

It should be understood that although this specification is described in accordance with the implementation manners, not each implementation manner only includes an independent technical solution. This narration in the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible implementations of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementations or implementations made without departing from the technical spirit of the present invention All changes shall be included in the protection scope of the present invention.

Claims

A power cord device for supplying power to at least one household appliance, wherein the power cord device includes a plug wire and a first wire body that is pluggable and electrically connected to the plug wire, and the plug wire The first end is provided with a plug for plugging in an external power source, and the first wire body includes a first plug interface and a first power interface electrically connected to the first plug interface, and the first plug interface is pluggable The ground connection is electrically connected to the second end of the plug wire.
The power cord device according to claim 1, wherein the first plug-in interface and the first power interface are configured to be compatible.
The power cord device according to claim 2, wherein the first cord body extends into the first household appliance to supply power to the first household appliance, and the power cord device further comprises a pluggable interface with the first power source. A second wire body electrically connected to the ground, and the second wire body extends into the second household appliance to supply power to the second household appliance.
The power cord device according to claim 3, wherein the second cord body includes a second plug-in interface and a second power interface electrically connected to the second plug-in interface, and the second plug-in interface is connected to the The first power interface is pluggably electrically connected.
The power cord device according to claim 4, wherein the first plug-in interface and the second plug-in interface have the same structure, and the first power interface and the second power interface have the same structure.
The power cord device according to claim 1, wherein the first cord body further comprises a protective cover for opening or closing the first power interface.
The power cord device according to claim 1, wherein the power cord device further comprises an environmental parameter recognizer, and the environmental parameter recognizer is used to collect environmental parameters external to the household electrical appliance.
8. The power cord device of claim 7, wherein the environmental parameter identifier is provided on the plug cord.
A combined system with at least one household electrical appliance, the combined system including a first household electrical appliance, the first household electrical appliance including a cabinet and a power cord device for supplying power to the first household electrical appliance, characterized in that: The power cord device includes a plug cord, and a first cord body electrically connected to the plug cord in a pluggable manner. The first cord body is provided with a cord for fixing the first cord body to the box body. Body fixing structure, the first end of the plug cord is provided with a plug for plugging in an external power source, and the first cord body includes a first plug-in interface and a first power interface electrically connected to the first plug-in interface, The first plug-in interface is pluggably electrically connected with the second end of the plug wire.
The combined system according to claim 9, wherein the combined system further comprises a second household appliance, and the power cord device further comprises a second wire body that is pluggable and electrically connected to the first power interface, The second wire body extends into the second household appliance to supply power to the second household appliance.