CN111384785A - Household appliance - Google Patents

Abstract

A household appliance comprising: the main body is provided with a power supply module and an opening; the door body, the main part is via hinge connection in the main part, the door body is used for opening or closing the opening, and the door body is equipped with power consumption module, the hinge includes the hinge pin, the door body is seted up and is suitable for the holding the shaft hole of hinge pin, the door body can wind the hinge pin is rotatory, domestic appliance still includes: the wireless power transmitting device is arranged in the hinge and connected with the power supply module; the wireless power receiving device is arranged in the shaft hole and connected with the power utilization module; wherein the wireless power transmitting device is coupled with the wireless power receiving device for wireless power transmission. The scheme provided by the invention can effectively solve the threading problem of the wiring harness at the hinge, realize the power supply and communication functions based on the hinge without a threading structure, and ensure the power supply effect on the user module on the door body while improving the overall reliability of the household appliance.

Description

Household appliance

Technical Field

The invention relates to the technical field of household appliances, in particular to a household appliance.

Background

A household appliance generally includes a plurality of electric components, and each of the electric components is connected to a power supply module through a wire.

For example, the door body of the household appliance can be provided with the electric element, and the electric element on the door body is powered by being connected with a power module arranged on the main body of the household appliance.

For richening the use function of the household appliance, more and more electric elements are arranged on the door body, and each electric part is connected with the power module on the main body through an independent wire harness respectively, so that the number of the wire harnesses required to be arranged on the household appliance is more and more.

The door body and the main body of the existing household appliance are usually connected in a hinge mode, and the wiring harness of the electric element on the door body is connected to the power module on the door body through the hinge.

Disclosure of Invention

It is an object of embodiments of the present invention to provide an improved household appliance.

Accordingly, an embodiment of the present invention provides a household appliance, including: the power supply module comprises a main body, a power supply module and a control module, wherein the main body is provided with an opening; the door body, the main part via hinge connection in the main part, the door body is used for opening or closing the opening, the door body is equipped with the power consumption module, the hinge includes the hinge pin, the door body is seted up and is suitable for the holding the shaft hole of hinge pin, the door body can wind the hinge pin is rotatory, domestic appliance still includes: the wireless power transmitting device is arranged in the hinge and connected with the power supply module; the wireless power receiving device is arranged in the shaft hole and connected with the power utilization module; wherein the wireless power transmitting device is coupled with the wireless power receiving device for wireless power transmission. Therefore, the threading problem of the wire harness at the hinge can be effectively solved, the power supply and communication functions based on the hinge without the threading structure are realized, the overall reliability of the household appliance is improved, and meanwhile, the power supply effect of the user module on the door body is ensured. Specifically, through the coupling between the wireless power transmitting device and the wireless power receiving device, the wired harness in the hinge can be eliminated, thereby fundamentally solving the problem that the harness is twisted in the hinge and damaged during the opening and closing of the door.

Optionally, during the rotation of the door body around the hinge shaft, the wireless power receiving device rotates relative to the wireless power transmitting device. Because no wire harness is connected between the wireless power receiving device and the wireless power transmitting device, the problem that the wire harness is twisted and damaged does not exist even if the wireless power receiving device and the wireless power transmitting device rotate relatively. Further, the wireless power receiving device and the power module on the door body can be in wired connection, similarly, the wireless power transmitting device and the power module on the main body can also be in wired connection, therefore, through the relative rotation between the wireless power receiving device and the wireless power transmitting device, the wireless power receiving device and the power module on the door body can be ensured to be in between, the wireless power transmitting device and the power module on the main body do not have relative rotation, the wire harness for connecting the wireless power receiving device and the power module on the door body is also ensured, the wire harness for connecting the wireless power transmitting device and the power module on the main body cannot be twisted during the door opening and closing process, the power supply effect on the power module is further ensured, and the damage risk of the wire harness is reduced.

Optionally, the wireless power transmitting device is coaxially disposed with the hinge shaft, and the wireless power receiving device rotates around the axis of the hinge shaft during the door body rotates around the hinge shaft. Therefore, during the door opening and closing process, the relative rotation between the wireless power transmitting device and the hinge shaft and between the wireless power receiving device and the door body can be ensured.

Optionally, the wireless power transmitting device is fixed at the end of the hinge shaft to ensure effective coupling with the wireless power receiving device fixed in the shaft hole, thereby providing stable power and communication transmission for the power utilization module.

Optionally, the hinge further includes a shaft sleeve, the shaft sleeve is located in the shaft hole, the hinge shaft extends into the shaft sleeve, the shaft sleeve can rotate around the hinge shaft, and the wireless power receiving device is fixed to an inner ring of the shaft sleeve. Thereby, an efficient coupling of the wireless power transmitting device and the wireless power receiving device may be ensured, thereby providing stable power and communication transmission for the power-consuming module.

Optionally, the wireless power receiving device is disposed around the wireless power transmitting device to ensure a better coupling effect and provide stable power and communication transmission for the power consuming module.

Optionally, a gap exists between the wireless power receiving device and the wireless power transmitting device in a radial direction of the hinge shaft. Therefore, during the relative rotation of the wireless power transmitting device and the wireless power receiving device, the direct friction between the wireless power transmitting device and the wireless power receiving device can be avoided, and the influence on the coupling effect caused by the abrasion of the wireless power transmitting device and the wireless power receiving device can be avoided.

Optionally, the household appliance further includes: a first receiving portion adapted to receive the wireless power receiving device; and/or a second receptacle adapted to receive the wireless power transmitting device. Thus, the mounting complexity can be reduced, for example, in the assembling stage, the first accommodating part and the second accommodating part which are assembled in advance can be respectively mounted in the hinge shaft and the shaft hole, and the assembling process is simple. Further, the first accommodating part and the second accommodating part can protect the wireless power receiving device and the wireless power transmitting device, and the service lives of the wireless power receiving device and the wireless power transmitting device are prolonged.

Optionally, at least one of the first accommodating portion and the second accommodating portion has a protruding portion extending toward the other accommodating portion, and the wireless power receiving device and/or the wireless power transmitting device are fixed to the corresponding protruding portions. Thereby, a coupling effect between the wireless power transmitting apparatus and the wireless power receiving apparatus may be further enhanced.

Optionally, the wireless power receiving device or the wireless power transmitting device not fixed to the boss is disposed around the wireless power transmitting device or the wireless power receiving device fixed to the boss. Thereby, an effect that the wireless power receiving apparatus is disposed around the wireless power transmitting apparatus, and vice versa, can be achieved to further enhance the coupling effect of the two.

Optionally, at least one of the first accommodating portion and the second accommodating portion is a hollow structure, and the wireless power receiving device and/or the wireless power transmitting device are fixed to an inner wall of the corresponding accommodating portion. Therefore, the coupling structure can be matched with the convex part, and the effect that one of the wireless power receiving device and the wireless power transmitting device is arranged around the other one of the wireless power receiving device and the wireless power transmitting device is achieved, so that a better coupling effect is obtained.

Optionally, the household appliance further includes: and the sub-control unit is arranged on the door body and connected with the wireless power receiving device, and the sub-control unit is also connected with an electricity utilization module arranged on the door body. Therefore, power supply and data transmission of each power utilization module on the door body can be achieved through the sub-control unit, connection of the wire harnesses between each power utilization module and the wireless power receiving device on the door body is simplified, the threading problem of the wire harnesses at the hinge is effectively solved, and the wire pressing risk of the wire harnesses at the hinge is further reduced.

Optionally, the household appliance further includes: a main control unit disposed in the main body and connected with the wireless power transmitting device. Therefore, data transmission can be carried out on the electricity utilization module and/or the sub-control unit arranged on the door body through the coupling of the wireless power transmitting device and the wireless power receiving device, and the main control unit sends a control command to the electricity utilization module and/or the sub-control unit.

Optionally, the wireless power transmitting device and the wireless power receiving device realize wireless power transmission in a manner of electromagnetic oscillation or magnetic field coupling.

Drawings

Fig. 1 is a schematic view of a home appliance according to an embodiment of the present invention;

FIG. 2 is an exploded view of region A of FIG. 1;

fig. 3 is a top view of the wireless power transmitting device and the wireless power receiving device of fig. 1 and 2 in a coupled state;

FIG. 4 is a top view of the first and second receptacles of FIGS. 1 and 2 in a joined state;

fig. 5 is an operational schematic diagram of a wireless power transmitting apparatus and a wireless power receiving apparatus of an embodiment of the present invention;

in the drawings:

100-household appliances; 110-a body; 111-a power module; 112-opening; 113-a main control unit; 120-a door body; 121-power utilization module; 122-shaft hole; 123-a display control module; 130-a hinge; 131-a hinge axis; 131 a-an end of the hinge axis; 132-a shaft sleeve; 133-a hinge plate; 140-a wireless power transmitting device; 141-a transmitting circuit; 142-a transmitting coil; 150-a wireless power receiving device; 151-a receiving circuit; 152-a receiving coil; 160-a first receptacle; 160 a-an inner wall of the first receptacle; 170-a second locus of containment; 171-a projection; 172-a mounting portion; 180-a sub-control unit; a-the axis of the hinge axis; r-radial of hinge axis; gap-gap; x-width direction of the household appliance; y-depth direction of the household appliance; z-height direction of the household appliance.

Detailed Description

As background art, a door body and a main body of an existing household appliance are generally connected by a hinge, and a wiring harness of an electric element on the door body is connected to a power module on the door body through the hinge.

Along with the increase of pencil quantity, threading of hinge department is more and more difficult, prevents slow-witted design and production installation complicacy. On one hand, the problem of hinge cover pressing lines is easily generated at the hinge position by increasing wire harnesses, and the wire harnesses are damaged. On the other hand, during the door opening and closing process, the door body can rotate relative to the main body, so that the wiring harness at the hinge can be twisted, and damage can be easily caused.

In addition, some household appliances's door hinge compact structure can't design the threading structure, just also can't realize the threading function.

To solve the above technical problem, an embodiment of the present invention provides a household appliance, including: the power supply module comprises a main body, a power supply module and a control module, wherein the main body is provided with an opening; the door body, the main part via hinge connection in the main part, the door body is used for opening or closing the opening, the door body is equipped with the power consumption module, the hinge includes the hinge pin, the door body is seted up and is suitable for the holding the shaft hole of hinge pin, the door body can wind the hinge pin is rotatory, domestic appliance still includes: the wireless power transmitting device is arranged in the hinge and connected with the power supply module; the wireless power receiving device is arranged in the shaft hole and connected with the power utilization module; wherein the wireless power transmitting device is coupled with the wireless power receiving device for wireless power transmission.

Therefore, the threading problem of the wire harness at the hinge can be effectively solved, the power supply and communication functions based on the hinge without the threading structure are realized, the overall reliability of the household appliance is improved, and meanwhile, the power supply effect of the user module on the door body is ensured. Specifically, through the coupling between the wireless power transmitting device and the wireless power receiving device, the wired harness in the hinge can be eliminated, thereby fundamentally solving the problem that the harness is twisted in the hinge and damaged during the opening and closing of the door.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a schematic view of a home appliance according to an embodiment of the present invention. Fig. 2 is an exploded view of region a of fig. 1. Here, the household appliance 100 shown in fig. 1 exemplarily shows only a structure of a region where the door body is located.

For convenience of description, the width direction of the home appliance 100 is assumed to be the x direction, the depth direction of the home appliance 100 is assumed to be the y direction, and the height direction of the home appliance 100 is assumed to be the z direction.

The household appliance 100 of the present embodiment may include a refrigeration device, such as a refrigerator, a freezer, etc.; the household appliance 100 may also include other electric devices which have more than two components which can move relatively and are connected through a hinge, and need to supply power from one component to the other component.

Specifically, in conjunction with fig. 1 and 2, the home appliance 100 may include: a main body 110, wherein the main body 110 is provided with a power module 111, and the main body 110 is provided with an opening 112; the main body 120 may be connected to the main body 110 via a hinge 130, the door body 110 is configured to open or close the opening 112, the door body 120 is provided with an electricity utilization module 121, the hinge 130 may include a hinge shaft 131, the door body 120 may be provided with a shaft hole 122 adapted to accommodate the hinge shaft 131, and the door body 120 may rotate around the hinge shaft 131.

In one embodiment, the hinge shaft 131 may be fixed to the body 110 by a hinge plate 133.

In one embodiment, the power utilization module 121 may be an electronic and electrical component (not shown). For example, the electronic and electrical components may include: lighting components, such as Light Emitting Diode (LED) lamps; heating means such as heating wires; a display operation module, such as a touch screen; and a sensing part such as a temperature sensor, an infrared sensor, etc.

In one embodiment, the electricity utilization module 121 may be disposed on an outer surface of the door 120, where the outer surface is a surface facing a user when the door 120 closes the opening 112. For example, the power utilization module 121 may be a display control module 123, through the display control module 123, a user may complete a control operation on the household appliance 100 without opening the door 120, a user operation instruction received by the display control module 123 is transmitted to a controller disposed in the main body 110, and the controller may be designed integrally with the power supply module 111.

In a variation, the electricity utilization module 121 may be disposed inside the door 120, where the inside is a side close to the main body 110 when the door 120 closes the opening 112. For example, the power utilization module 121 may be a magnetic switch, an LED lamp, or the like.

In one embodiment, the power module 113 may be disposed at any position of the main body 110, and only the possible positions of the power module 113 are exemplarily shown in the figure.

Further, the household appliance 100 according to this embodiment may further include: a wireless power transmitting device 140 disposed in the hinge 130 and connected to the power module 111; a wireless power receiving device 150 disposed in the shaft hole 122 and connected to the power consuming module 121; wherein the wireless power transmitting device 140 is coupled with the wireless power receiving device 150 for wireless power transmission.

Therefore, the threading problem of the wire harness at the hinge 130 can be effectively solved, the power supply and communication functions based on the hinge 130 without the threading structure are realized, the overall reliability of the household appliance 100 is improved, and meanwhile, the power supply effect of the user module 121 on the door 120 is ensured.

Specifically, by the coupling between the wireless power transmitting device 140 and the wireless power receiving device 150, the wired harness within the hinge 130 can be eliminated, thereby fundamentally solving the problem that the harness is twisted and damaged within the hinge 130 during opening and closing of the door.

In one embodiment, power transmission between the wireless power receiving device 150 and the power consumption module 121, and between the wireless power transmitting device 140 and the power supply module 111 may be performed in a wired or wireless manner.

In one embodiment, the wireless power transmitting device 140 and the wireless power receiving device 150 may implement wireless power transmission based on a contactless energy transmission principle. For example, the wireless power transmitting device 140 and the wireless power receiving device 50 may enable wireless power transmission in a manner of electromagnetic oscillation or magnetic field coupling.

In a variation, the wireless power transmitting device 140 and the wireless power receiving device 150 may implement wireless power transmission based on a contact type energy transmission principle, which may also implement power supply to the electricity utilization module 121 on the door 120 on the basis of reducing the wire harness in the hinge 130.

In one embodiment, the wireless power transmitting apparatus 140 may include a transmitting circuit 141 and a transmitting coil 142 coupled, wherein the transmitting circuit 141 is coupled with the power supply module 111.

The wireless power receiving apparatus 150 may include a receiving circuit 151 and a receiving coil 152 coupled, wherein the receiving circuit 151 is coupled with the power-using module 121.

In one embodiment, the transmitting circuit 141 may be disposed at any position of the body 110 and connected to the transmitting coil 142, and the receiving circuit 151 may be disposed at any position of the door 120 and connected to the receiving coil 152.

Further, the transmitting circuit 141 is further connected to the power module 111, and the receiving circuit 151 is further connected to the power consumption module 121.

Further, the transmitting coil 142 is fixed on the hinge shaft 131, and the receiving coil 152 is fixed in the shaft hole 122.

In one embodiment, the wireless power receiving device 150 rotates relative to the wireless power transmitting device 140 during the rotation of the door body 120 about the hinge shaft 131. For example, referring to fig. 2, the receive coil 152 rotates relative to the transmit coil 142.

Since there is no wire harness connection between the wireless power receiving device 150 and the wireless power transmitting device 140, there is no problem that the wire harness is twisted and damaged even if the two are relatively rotated.

Further, the wireless power receiving device 150 and the power utilization module 121 on the door 120 may be connected by wire, and similarly, the wireless power transmitting device 140 and the power module 111 on the main body 110 may also be connected by wire, so that, by relative rotation between the wireless power receiving device 150 and the wireless power transmitting device 140, it can be ensured that there is no relative rotation between the wireless power receiving device 150 and the power utilization module 121 on the door 120, and between the wireless power transmitting device 140 and the power module 111 on the main body 110, that is, it is ensured that the wire harness connecting the wireless power receiving device 150 and the power utilization module 121, and the wire harness connecting the wireless power transmitting device 140 and the power module 111 are not twisted during opening and closing the door, thereby further ensuring the power supply effect on the power utilization module 121, and reducing the risk of damage to the wire harness.

In one embodiment, the wireless power transmitting device 140 is disposed coaxially with the hinge shaft 131, and the wireless power receiving device 150 rotates about an axis a of the hinge shaft 131 during the rotation of the door body 120 about the hinge shaft 131. Thereby, during opening and closing of the door, it can be ensured that no relative rotation occurs between the wireless power transmitting device 140 and the hinge shaft 131, and between the wireless power receiving device 150 and the door body 120. Wherein an axis a of the hinge shaft 131 is parallel to the z direction.

In one embodiment, the wireless power transmitting device 140 may be fixed to the end 131a of the hinge shaft 131 to ensure effective coupling with the wireless power receiving device 150 fixed in the shaft hole 122, thereby providing stable power and communication transmission for the power-using module 121.

For example, referring to fig. 2, the transmitting coil 142 may be fixed to an end 131a of the hinge shaft 131 near the bottom of the shaft hole 122 to ensure that the transmitting coil 142, which is inserted into the shaft hole 122 along with the hinge shaft 131 after assembly, and the receiving coil 152 disposed in the shaft hole 122 can be effectively coupled.

In one embodiment, the hinge 130 may further include a bushing 132, the bushing 132 may be located in the shaft hole 122, the hinge shaft 131 extends into the bushing 132, the bushing 132 may rotate around the hinge shaft 131, and the wireless power receiving device 150 may be fixed to an inner ring of the bushing 132. Thereby, it is possible to ensure effective coupling of the wireless power transmitting device 140 and the wireless power receiving device 150, thereby providing stable power and communication transmission for the power-using module 121.

For example, referring to fig. 2, the receiving coil 152 may be wound around the inner wall of the shaft sleeve 132, and when the hinge shaft 131 extends into the shaft sleeve 132, a coupling effect between the receiving coil 152 and the transmitting coil 142 can be achieved.

In one embodiment, referring to fig. 3, the wireless power receiving device 150 may be disposed around the wireless power transmitting device 140 in a radial direction r along the hinge axis 131 to ensure a superior coupling effect and provide stable power and communication transmission for the power-using module 121.

In a variation, the wireless power transmitting device 140 may be disposed around the wireless power receiving device 150 in a radial direction r along the hinge axis 131, which may also result in a better coupling effect.

In one embodiment, a gap may exist between the wireless power receiving device 150 and the wireless power transmitting device 140 in a radial direction r of the hinge shaft 131. Therefore, during the relative rotation of the wireless power transmitting device 140 and the wireless power receiving device 150, the direct friction between the wireless power transmitting device 140 and the wireless power receiving device 150 can be avoided, and the coupling effect can be prevented from being influenced by the abrasion of the two devices.

In one embodiment, the transmitting coil 142 may be directly wound or attached around the circumference of the end 131a of the hinge shaft 131, and the receiving coil 152 may be directly wound or attached around the inner wall of the sleeve 132 at a corresponding position.

In a variant, with continued reference to fig. 2, the household appliance 100 may further comprise: a first receiving portion 160, wherein the first receiving portion 160 may be adapted to receive the wireless power receiving device 150.

For example, the receiving coil 152 of the wireless power receiving device 150 may be disposed in the shaft sleeve 132 through the first accommodating portion 160, and the transmitting coil 141 of the wireless power transmitting device 140 may be directly attached to or wound around the end 131a of the hinge shaft 131.

In yet another variation, with continued reference to fig. 2, the household appliance 100 may further include: a second receiving part 170, wherein the second receiving part 170 may be adapted to receive the wireless power transmitting apparatus 140.

For example, the transmitting coil 141 of the wireless power transmitting device 140 may be fixed to the end 131a of the hinge shaft 131 through the second accommodating portion 170, and the receiving coil 152 of the wireless power receiving device 150 may be directly attached to or wound around the inner wall of the shaft sleeve 132.

In another variation, the receiving coil 152 of the wireless power receiving apparatus 150 may be disposed in the shaft sleeve 132 through the first receiving portion 160, and the transmitting coil 141 of the wireless power transmitting apparatus 140 may be fixed to the end 131a of the hinge shaft 131 through the second receiving portion 170.

Thus, the installation complexity may be reduced, for example, at the assembling stage, the first and second receiving parts 160 and 170, which are assembled in advance, may be installed in the hinge shaft 131 and the shaft hole 122, respectively, and the assembling process is simple. Further, the first and second receiving portions 160 and 170 can protect the wireless power receiving apparatus 150 and the wireless power transmitting apparatus 140, and prolong the service life of the two.

In one embodiment, the first receiving portion 160 may have a protrusion (not shown) extending toward the second receiving portion 170, and the wireless power receiving device 150 is fixed to the protrusion.

For example, the receiving coil 152 may be wound around the circumference of the protrusion.

In a variation, referring to fig. 2, the second accommodating portion 170 may have a protrusion 171 extending toward the first accommodating portion 160, and the wireless power transmitting device 140 is fixed to the protrusion 171.

For example, the second receiving portion 170 may have a mounting portion 172 and a protrusion portion 171. The mounting portion 172 is fixed to an end 131a of the hinge shaft 131, the protrusion 171 extends in a direction away from the hinge shaft 131, and the transmitting coil 142 may be wound around the protrusion 171.

In one embodiment, the first and second receiving portions 160 and 170 may each have a protrusion 171 extending toward each other, and the wireless power transmitting device 140 and the wireless power receiving device 150 may be disposed on the protrusions of the corresponding receiving portions.

Thereby, the coupling effect between the wireless power transmitting device 140 and the wireless power receiving device 150 may be further enhanced.

In one embodiment, the wireless power receiving device 150 or the wireless power transmitting device 140, which is not fixed to the protrusion 171, may be disposed around the wireless power transmitting device 140 or the wireless power receiving device 150 fixed to the protrusion 171. Thereby, an effect that the wireless power receiving device 150 is disposed around the wireless power transmitting device 140, and vice versa, may be achieved to further enhance the coupling effect of the two.

For example, referring to fig. 4, the wireless power transmitting device 140 disposed at the protrusion 171 of the second accommodating portion 170 is surrounded by the wireless power receiving device 150.

In one embodiment, referring to fig. 2 and 4, the first accommodating portion 160 may have a hollow structure, and the wireless power receiving device 150 may be fixed to an inner wall 160a of the first accommodating portion 160. Thereby, it is possible to achieve an effect that one of the wireless power receiving device 150 and the wireless power transmitting device 140 is disposed around the other thereof in match with the convex portion 171 to obtain a better coupling effect.

In a variation, the second accommodating portion 170 may be a hollow structure, and the wireless power transmitting device 140 may be fixed to an inner wall (not shown) of the second accommodating portion 170. The second receiving part 170 is fixed to an end 131a of the hinge shaft 131, and thus, may be coupled to the wireless power receiving device 150 as well.

In a typical application scenario, the first and second receiving parts 160 and 170 may adopt the following structures to fix the corresponding wireless power transmitting device 140 and wireless power receiving device 150, respectively: the first receiving portion 160 may have a hollow structure, the second receiving portion 170 may have a protrusion (e.g., the protrusion 171), or vice versa; alternatively, each of the first and second receiving portions 160 and 170 may have a hollow structure; alternatively, each of the first and second receiving portions 160 and 170 may have a protrusion (e.g., the protrusion 171). Fig. 2 shows the first accommodating portion 160 as a hollow structure, and the second accommodating portion 170 has a protrusion 171.

In one embodiment, at least one of the first accommodating portion 160 and the second accommodating portion 170 may be made of a magnetic conductive material such as a ferrite material to enhance the coupling effect between the wireless power receiving device 150 and the wireless power transmitting device 140.

In an embodiment, with continuing reference to fig. 2, the household appliance 100 of this embodiment may further include: and a sub-control unit 180 disposed on the door 120 and connected to the wireless power receiving device 150, wherein the sub-control unit 180 is further connected to a power consumption module 121 disposed on the door 120. Therefore, power supply and data transmission of each power module 121 on the door body 120 can be realized through the sub-control unit 180, connection of wire harnesses between each power module 121 and the wireless power receiving device 150 on the door body 120 is simplified, the threading problem of the wire harnesses at the hinge 130 is effectively solved, and the wire pressing risk of the wire harnesses at the hinge 130 is further reduced.

For example, each of the power modules 121 of the door 120 may be connected to the sub-control unit 180, and the sub-control unit 180 may be connected to the receiving circuit 151 of the wireless power receiving device 150. Compared with a scene that each electricity utilization module 121 is connected to the receiving circuit 151, the wiring harness connection on the door body can be further simplified.

In an embodiment, with continuing reference to fig. 1 and fig. 2, the household appliance 100 of this embodiment may further include: a main control unit 113 disposed at the main body 110 and connected to the wireless power transmitting apparatus 140. Accordingly, data transmission may be performed to the electricity module 121 and/or the sub-control unit 180 provided at the door 120 through the coupling of the wireless power transmitting device 140 and the wireless power receiving device 150, so as to transmit a control command to the electricity module 121 and/or the sub-control unit 180 through the main control unit 113.

For example, the main control unit 113 may be connected with the transmission circuit 141.

Preferably, the main control unit 113 may be the aforementioned controller.

In a typical application scenario, taking the household appliance 100 as a refrigerator as an example, a refrigeration door (corresponding to the door 120) of the refrigerator is fixed on a box body (corresponding to the main body 110) through a hinge 130, and a display control module 123, a magnetic control switch and other electricity utilization modules 121 are installed on the refrigeration door.

Further, the refrigeration door is further provided with a sub-control unit 180 to realize the control and communication functions of each power module 121 on the refrigeration door.

Further, the sub control unit 180 may be connected to the main control unit 113 provided in the cabinet by means of the wireless power transmission.

Specifically, to implement wireless power transmission, a transmitting circuit 141 may be provided on the housing, and a transmitting coil 142 may be fixed to the end 131a of the hinge shaft 131 through the second receiving portion 170.

More specifically, the receiving coil 152 may be fixed to the inner wall a of the sleeve 132, and the receiving circuit 151 may be disposed on the refrigerating door.

The main control unit 113 is connected to the transmitting circuit 141, the transmitting circuit 141 is connected to the transmitting coil 142, the receiving coil 152 is connected to the receiving circuit 151, and the receiving circuit 151 is connected to the sub-control unit 180.

Further, there may be a gap between the transmitting coil 142 and the receiving coil 152, and the receiving coil 152 may rotate around the axis (corresponding to the axis a) of the transmitting coil 141.

In practical applications, referring to fig. 5, the transmitting circuit 141 may be controlled by the main control unit 113 to supply power to the power module 111, and may perform signal transmission with the main control unit 113.

Further, the transmitting circuit 141 generates a high-frequency alternating current, which flows into the transmitting coil 142, and the receiving coil 152 generates an induced current by electromagnetic induction. The output dc voltage is rectified by the receiving circuit 151 and supplies power to the sub-control unit 180. While realizing the power transmission, the control signals of the door 120 and the main body 110 can be transmitted between the wireless power transmitting device 140 and the wireless power receiving device 150 in two directions.

In one embodiment, since the second accommodating portion 170 is fixed to the end 131a of the hinge shaft 131, the first accommodating portion 160 may also be fixed in the shaft sleeve 132, and the lower end surface of the first accommodating portion 160 is flush with the lower end surface of the shaft sleeve 132. Thus, after the assembly is completed, the interval between the first receiving part 160 and the second receiving part 170, which protrude into the bushing 132 with the hinge shaft 131, is minimized to ensure the coupling effect between the wireless power transmitting device 140 and the wireless power receiving device 150.

In one embodiment, the hinge shaft 131 may have a hollow structure, the mounting portion 172 of the second receiving portion 170 may be fixed to the hinge plate 133, the protrusion 171 of the second receiving portion 170 may pass through the hinge shaft 133 and protrude from the end 131a of the hinge shaft 131, and the transmitting coil 142 is disposed at least at a portion of the protrusion 171 protruding from the end 131a of the hinge shaft 131.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (14)

1. A household appliance (100) comprising: a main body (110), the main body (110) being provided with a power supply module (111), and the main body (110) having an opening (112); the door body (110), main part (110) via hinge (130) connect in main part (110), door body (110) are used for opening or close opening (112), door body (110) are equipped with power module (121), hinge (130) include hinge axis (131), door body (120) are seted up and are suitable for the shaft hole (122) of holding hinge axis (131), door body (120) can wind hinge axis (131) are rotatory, its characterized in that still includes:

a wireless power transmitting device (140) disposed within the hinge (130) and connected to the power supply module (111);

a wireless power receiving device (150) disposed in the shaft hole (122) and connected to the power module (121);

wherein the wireless power transmitting device (140) is coupled with the wireless power receiving device (150) for wireless power transmission.

2. The household appliance (100) according to claim 1, wherein the wireless power receiving means (150) rotates with respect to the wireless power transmitting means (140) during the rotation of the door body (120) around the hinge axis (131).

3. The household appliance (100) according to claim 2, wherein the wireless power transmitting device (140) is arranged coaxially to the hinge axis (131), the wireless power receiving device (150) rotating about the axis (a) of the hinge axis (131) during the rotation of the door body (120) about the hinge axis (131).

4. The household appliance (100) according to claim 1, wherein the wireless power transmitting device (140) is fixed to an end (131a) of the hinge shaft (131).

5. The household appliance (100) according to claim 1, wherein the hinge (130) further comprises a bushing (132), the bushing (132) is located in the shaft hole (122), the hinge shaft (131) extends into the bushing (132), the bushing (132) can rotate around the hinge shaft (131), and the wireless power receiving device (150) is fixed to an inner ring of the bushing (132).

6. A household appliance (100) as in claim 1, characterized by the wireless power receiving means (150) arranged around the wireless power transmitting means (140).

7. The household appliance (100) according to claim 1, wherein in a radial direction (r) of the hinge axis (131), a gap (gap) exists between the wireless power receiving device (150) and the wireless power transmitting device (140).

8. A household appliance (100) as in claim 1, further comprising:

a first receptacle (160), the first receptacle (160) adapted to receive the wireless power receiving device (150); and/or the presence of a gas in the gas,

a second receptacle (170), the second receptacle (170) being adapted to receive the wireless power transmitting device (140).

9. A household appliance (100) according to claim 8, characterized in that at least one of the first receptacle (160) and the second receptacle (170) has a protrusion (171) extending towards the other receptacle, the wireless power receiving means (150) and/or the wireless power emitting means (140) being fixed to the corresponding protrusion (171).

10. A household appliance (100) as in claim 9, characterized by the wireless power reception means (150) or wireless power transmission means (140) not fixed to the protruding portion (171) being arranged around the wireless power transmission means (140) or wireless power reception means (150) fixed to the protruding portion (171).

11. Household appliance (100) according to claim 8, wherein at least one of said first receptacle (160) and second receptacle (170) is of hollow structure, said wireless power receiving means (150) and/or wireless power emitting means (140) being fixed to the inner wall (160a) of the corresponding receptacle.

12. A household appliance (100) as in any one of the claims 1 to 11, further comprising:

and the sub-control unit (180) is arranged on the door body (120) and is connected with the wireless power receiving device (150), and the sub-control unit (180) is also connected with a power utilization module (121) arranged on the door body (120).

13. A household appliance (100) as in any one of the claims 1 to 11, further comprising:

a main control unit (113) provided to the main body (110) and connected to the wireless power transmitting device (140).

14. A household appliance (100) as in any one of the above claims 1 to 11, characterized by the wireless power transmitting means (140) and the wireless power receiving means (150) that enable wireless power transmission in the form of electromagnetic oscillation or magnetic field coupling.

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