Non-contact power supply dining table turntable

Abstract

The invention relates to a non-contact power supply dining table turntable which comprises a turntable body, a supporting base supported on a table top, a rotating base connected with the turntable body and a power assembly driving the rotating base to rotate relative to the supporting base. The power assembly is arranged between the supporting base and the rotating base, and the rotating disc body and the rotating base rotate synchronously. The power assembly is electrically connected with a control circuit on the supporting base. An electric component is arranged on the turntable body and / or the rotating base; a transmitting coil is arranged on the supporting base and is electrically connected with the control circuit; a receiving coil is arranged on the rotating base and is electrically connected with the power utilization assembly; the transmitting coil and the receiving coil correspond to each other and generate electromagnetic induction electric energy to be supplied to the power utilization assembly. The turntable of the dining table adopts non-contact power supply, so that the power supply stability can be ensured, the service life is prevented from being influenced by abrasion, and the turntable rotates more smoothly.

Description

Technical Field

[0001] This invention relates to a dining table appliance, specifically a contactless power supply turntable. Background Technology

[0002] Traditional turntables require manual operation to rotate or stop, which is cumbersome. While electric turntables have emerged, their continuous operation can prevent users from picking up food quickly enough. To address the shortcomings of both manual and electric turntables, Chinese patent document CN219108955U discloses a turntable with directional sensing functionality. Specifically, it includes a directional transmission body, a directional dynamic sensor for recognizing moving objects, a main control circuit board, and a motor for driving the directional transmission body to rotate relative to the table body. When the directional dynamic sensor is mounted on the turntable, existing methods to address conductivity issues typically involve either a power cord or moving contacts. Power cord conduction can lead to cord tangling, damage, and space occupation, while moving contact conduction often results in poor power supply stability due to poor contact. Therefore, traditional contact-based conduction methods suffer from unstable power supply, fragility, and lack of durability.

[0003] Therefore, further improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a contactless power supply for a dining table turntable. This turntable uses contactless power supply, which can ensure the stability of power supply, avoid wear and tear affecting service life, and make the turntable rotate more smoothly.

[0005] The objective of this invention is achieved as follows: A contactless power supply turntable includes a turntable body, a support base supported on a tabletop, a rotating base connected to the turntable body, and a power component that drives the rotating base to rotate relative to the support base. The power component is disposed between the support base and the rotating base, and the turntable body and the rotating base rotate synchronously. The power component is electrically connected to a control circuit on the support base. A power supply component is disposed on the turntable body and / or the rotating base. A transmitting coil is disposed on the support base and is electrically connected to the control circuit. A receiving coil is disposed on the rotating base and is electrically connected to the power supply component. The transmitting coil and the receiving coil correspond to each other and generate electromagnetic induction to supply power to the power supply component.

[0006] As a specific embodiment, the support base has a first annular surface on which the transmitting coil is wound; the rotating base has a second annular surface on which the receiving coil is wound; the transmitting and receiving coils are coaxially arranged inside and outside each other. Alternatively, the support base has a first annular plane on which the transmitting coil is disposed; the rotating base has a second annular plane on which the receiving coil is disposed; the transmitting and receiving coils are vertically aligned with each other.

[0007] As another specific embodiment, the support base and / or rotating base are provided with a first fastening position, and the support base and the rotating base are fastened to each other through the first fastening position to lock the vertical position relationship between the support base and the rotating base; the rotating base is provided with an upper limit part and a lower limit part that are vertically corresponding to each other, and there is a limit gap between the upper limit part and the lower limit part; the support base is provided with a limit function part, and the limit function part is rotatably disposed within the limit gap.

[0008] As another specific solution, the power supply components include a human body sensor module for detecting whether there is an object moving above the turntable body. The human body sensor module is set on the turntable body and is electrically connected to a receiving coil.

[0009] As another specific solution, the power components include an infrared emitting module for emitting infrared signals, which is electrically connected to a human body sensing module. Several infrared emitting modules are arranged in a ring on the turntable body and rotate with the turntable body. Several infrared receiving modules for receiving infrared signals are arranged in a ring on the support base, and the infrared receiving modules are electrically connected to the control circuit. When the human body sensing module detects a moving object above the turntable body, the human body sensing module sends a feedback to the infrared emitting module, which then emits an infrared signal. After receiving the infrared signal, the infrared receiving module sends a feedback to the control circuit, which then controls the power components to stop operating.

[0010] As another specific solution, the human body sensing module includes a radar module for recognizing human bodies based on radar signals. The radar module is equipped with a radar transmitter for transmitting radar signals to the top of the turntable body and a radar receiver for receiving reflected radar signals. Several radar modules are arranged in a ring at the bottom of the turntable body, and several radar modules are connected to an infrared transmitting module through a sensing circuit.

[0011] As another specific solution, the transmitting end of the infrared transmitting module and the receiving end of the infrared receiving module are aligned to each other, so that the transmitting area D1 of the infrared transmitting module always overlaps with the receiving area D2 of at least one infrared receiving module.

[0012] As another specific solution, this dining table turntable also includes a bearing assembly, which includes a linkage bracket, a first rolling element, and a second rolling element. The linkage bracket is movably disposed between the support base and the rotating base, the first rolling element is rotatably disposed between the support base and the linkage bracket, and the second rolling element is rotatably disposed between the linkage bracket and the rotating base.

[0013] As another specific solution, the power assembly includes a drive motor, a drive gear, and a drive rack. The drive motor is mounted on the support base and electrically connected to the control circuit. The drive gear is connected to the motor shaft of the drive motor. The drive rack is coaxially and closed-loop mounted on the linkage bracket. The drive gear and the drive rack mesh with each other. When the drive motor starts, the linkage bracket drives the rotating base to rotate through the second rolling element.

[0014] The beneficial effects of this invention are as follows: In this turntable, to address the shortcomings of traditional power conduction methods, a transmitting coil is installed on the support base, and a receiving coil is installed on the rotating base, with the transmitting and receiving coils corresponding to each other. When the control circuit supplies power to the transmitting coil, a magnetic field is generated around the transmitting coil. Under the influence of this magnetic field, electromagnetic induction power is generated in the receiving coil, which can ultimately supply power to the electrical components. The power conduction between the control circuit and the electrical components is achieved through the cooperation of the transmitting and receiving coils. The two coils do not need to be in contact with each other to generate power, achieving contactless power supply. On the one hand, this ensures the stability of the power supply; on the other hand, it reduces rotational friction, making the turntable rotate more smoothly. Furthermore, contactless power supply eliminates the need for a power cord, avoiding damage from the rotating and tangled power cord that directly affects the product's lifespan. Attached Figure Description

[0015] Figure 1 This is an assembly diagram of the dining table turntable in the first embodiment of the present invention.

[0016] Figure 2 This is an exploded view of the dining table turntable in the first embodiment of the present invention.

[0017] Figure 3 This is a partial cross-sectional view of the dining table turntable in the first embodiment of the present invention.

[0018] Figure 4 for Figure 3 Enlarged view of section H in the middle.

[0019] Figure 5 for Figure 3 Enlarged view of the middle J section.

[0020] Figure 6 This is a circuit diagram of the coil transmitting circuit in the first embodiment of the present invention.

[0021] Figure 7This is a circuit diagram of the coil receiving circuit in the first embodiment of the present invention.

[0022] Figure 8 This is a circuit diagram of the sensing circuit in the first embodiment of the present invention.

[0023] Figure 9 This is a circuit diagram of the control circuit in the first embodiment of the present invention.

[0024] Figure 10 This is a schematic diagram of infrared communication in the first embodiment of the present invention.

[0025] Figure 11 for Figure 10 Enlarged view of the middle L section.

[0026] Figure 12 for Figure 10 Enlarged view of the middle M section.

[0027] Figure 13 This is a partial cross-sectional view of the dining table turntable in the second embodiment of the present invention.

[0028] Figure 14 This is an enlarged view of part K in the second embodiment of the present invention. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] First embodiment: See Figures 1-12 This embodiment relates to a contactless power supply turntable, comprising a turntable body A, a support base 1 supported on a tabletop B, a rotating base 2 connected to the turntable body A, and a power component that drives the rotating base 2 to rotate relative to the support base 1. The power component is located between the support base 1 and the rotating base 2, and the turntable body A and the rotating base 2 rotate synchronously. The power component ultimately drives the turntable body A to rotate on the tabletop B. The power component is electrically connected to a control circuit (not shown in the figure) on the support base 1, and the control circuit is used to control the operation of the power component. In this embodiment, a power-consuming component is provided on the turntable body A (depending on the actual situation, a power-consuming component can be provided on the rotating base 2 individually or simultaneously). A transmitting coil 4 is provided on the support base 1, and the transmitting coil 4 is electrically connected to the control circuit, which supplies power to the transmitting coil 4. A receiving coil 5 is provided on the rotating base 2, and the receiving coil 5 is electrically connected to the power-consuming component. The transmitting coil 4 and the receiving coil 5 correspond to each other and generate electromagnetic induction power to supply the power-consuming component.

[0031] In this dining table turntable, a transmitting coil 4 is installed on the supporting base 1, and a receiving coil 5 is installed on the rotating base 2. The transmitting coil 4 and the receiving coil 5 correspond to each other. When the control circuit supplies power to the transmitting coil 4, a magnetic field is generated around the transmitting coil 4. Under the action of this magnetic field, electromagnetic induction power is generated in the receiving coil 5, which can ultimately be used by the electrical components. The power conduction between the control circuit and the electrical components is achieved by the cooperation of the transmitting coil 4 and the receiving coil 5. The two coils do not need to be in contact with each other to generate power, realizing contactless power supply. On the one hand, it can ensure the stability of power supply, and on the other hand, it can reduce rotational friction, making the turntable rotate more smoothly. Furthermore, contactless power supply can eliminate the setting of power cord, avoiding the direct impact on the product's service life by the power cord rotating and tangling and being damaged.

[0032] Further, see Figure 3 and Figure 4 The supporting base 1 has a first annular surface 101 integrally formed around its perimeter, and the transmitting coil 4 is wound around the outside of the first annular surface 101; the rotating base 2 has a second annular surface 201 integrally formed around its perimeter, and the receiving coil 5 is wound around the outside of the second annular surface 201; the second annular surface 201 surrounds the outside of the first annular surface 101, and the transmitting coil 4 and the receiving coil 5 are arranged coaxially inside and outside each other.

[0033] Further, see Figure 3 and Figure 4 The support base 1 has a third annular surface 102 integrally formed around its perimeter, which surrounds the outside of the transmitting coil 4 and provides effective protection for the transmitting coil 4; and / or, the rotating base 2 has a fourth annular surface 202 integrally formed around its perimeter, which surrounds the outside of the receiving coil 5 and provides effective protection for the receiving coil 5.

[0034] Further, see Figure 4 and Figure 5The rotating base 2 has a first fastening position 104 integrally formed on its periphery (depending on the actual situation, the support base 1 can be provided with the first fastening position 104 alone or at the same time). Several first fastening positions 104 are evenly distributed in a ring on the second annular surface 201. The first fastening positions 104 are upside down on the third annular surface 102. The support base 1 and the rotating base 2 are fastened to each other by the first fastening positions 104, which are used to lock the vertical position relationship between the support base 1 and the rotating base 2. The inner side of the rotating base 2 is provided with an upper limit position 204 and a lower limit position 601 that are corresponding to each other. There is an annular limiting gap C between the upper limit position 204 and the lower limit position 601. The inner side of the support base 1 has an annular limiting function part 105 integrally formed. The limiting function part 105 is rotatably set in the limiting gap C. Specifically, a connecting ring 6 is provided on the inner side of the rotating base 2, and a second fastening position 602 is integrally formed on the connecting ring 6. The connecting ring 6 is fastened to the rotating base 2 through the second fastening position 602, and the lower limit part 601 is integrally formed on the periphery of the connecting ring 6.

[0035] Further, see Figure 3 In order to detect whether a user needs to pick up food by detecting a human body above the turntable, and finally control the turntable to stop rotating to facilitate the user's picking up of food, the electrical components in this embodiment include a human body sensing module 9 for detecting whether there is an object moving above the turntable body A. In this embodiment, the human body sensing module 9 is hidden at the bottom of the turntable body A. The human body sensing module 9 is electrically connected to the receiving coil 5, and the electromagnetic induction power can be supplied to the receiving coil 5 to ensure that the receiving coil 5 works normally.

[0036] Further, see Figures 10-12 The power components also include an infrared emitting module 10 for emitting infrared signals. The infrared emitting module 10 is electrically connected to the human body sensing module 9. Several infrared emitting modules 10 are evenly distributed in a ring on the turntable body A and rotate with the turntable body A. Several infrared receiving modules 11 for receiving infrared signals are evenly distributed in a ring around the support base 1. The infrared receiving modules 11 are electrically connected to the control circuit. When the human body sensing module 9 detects a moving object above the turntable body A, the human body sensing module 9 feeds back a signal to the infrared emitting module 10. At this time, the infrared emitting module 10 emits infrared signals outward. After receiving the infrared signals, the infrared receiving modules 11 feed back to the control circuit, and the control circuit controls the power components to stop running. It can be seen that the infrared emitting module 10 and the infrared receiving module 11 together form a communication device to realize the wireless communication connection between the human body sensing module 9 and the control circuit. In addition to infrared communication, other communication protocols such as Bluetooth and 2.4G can also be used.

[0037] Further, see Figure 3The human body sensing module 9 includes a radar module 901 for recognizing the human body based on radar signals and a ring-shaped sensing bracket 902. The sensing bracket 902 is fixedly installed at the bottom of the turntable body A, and several radar modules 901 are fixedly installed at the bottom of the turntable body A through the sensing bracket 902. The radar module 901 is provided with a radar transmitter for transmitting radar signals to the top of the turntable body A and a radar receiver for receiving reflected radar signals. The radar transmitter and radar receiver are not shown in the attached figure, but this is a common technology and is therefore omitted from the drawing. During operation, the radar transmitter transmits radar signals to the top of the turntable. When the user picks up food, or their hand or arm enters the detection area above the turntable, the transmitted radar signal is emitted after reaching the hand or arm. The reflected transmitted radar signal is finally received by the radar receiver, thereby effectively recognizing the user picking up food. Several radar modules 901 are distributed in a ring at the bottom of the turntable body A. Several radar modules 901 are connected to the sensing circuit (see...). Figure 8 Connect the infrared emitting module 10.

[0038] Further, see Figures 10-12 Four infrared transmitting modules 10 are fixedly installed inside the sensing bracket 902, with the transmitting area D1 of the infrared transmitting module 10 facing inward. Eight infrared receiving modules 11 are fixedly installed outside the support base 1, with the receiving area D2 of the infrared receiving module 11 facing outward. The transmitting end of the infrared transmitting module 10 and the receiving end of the infrared receiving module 11 are aligned to ensure the stability of infrared signal reception. The transmitting area D1 of the infrared transmitting module 10 always overlaps with the receiving area D2 of at least one infrared receiving module 11 to ensure that at least one infrared receiving module 11 can successfully receive the infrared signal and avoid blind spots that could affect communication stability.

[0039] Furthermore, as a functional extension, the electrical components also include a control module for inputting control commands and / or broadcasting operating parameters, and a heating module for heating the utensils on the turntable. The control module is electrically connected to the receiving coil 5 and the heating module. The control module is a control panel, and the heating module can directly heat the utensils on the turntable, meeting more user needs.

[0040] Furthermore, to ensure smooth rotation of the turntable body A, this dining table turntable also includes a bearing assembly, which includes a linkage bracket 3, a first rolling element 7, and a second rolling element 8. The linkage bracket 3 is movably disposed between the support base 1 and the rotating base 2. In this embodiment, the support base 1, the rotating base 2, and the linkage bracket 3 are arranged in a ring shape and are coaxially coupled to each other. The first rolling element 7 and the second rolling element 8 are metal spheres, wherein a plurality of first rolling elements 7 are rotatably disposed between the support base 1 and the linkage bracket 3, and a plurality of second rolling elements 8 are rotatably disposed between the linkage bracket 3 and the rotating base 2.

[0041] Furthermore, the power assembly includes a drive motor, a drive gear, and a drive rack 301. The drive motor is fixedly mounted inside the support base 1 and electrically connected to the control circuit. The drive gear is connected to the motor shaft of the drive motor (the connection between the drive motor and the drive gear is a common technique, so the drive motor and drive gear are not shown in the figure). The drive rack 301 is coaxially and integrally formed in a closed loop inside the linkage bracket 3, and the drive gear and drive rack 301 mesh with each other. When the drive motor starts, the linkage bracket 3 drives the rotating base 2 to rotate through the second rolling element 8. The rotating base 2 and the linkage bracket 3 are not rigidly connected. Even if the rotating base 2 is forcibly braked, the drive motor will not be affected, thereby extending its service life.

[0042] Second embodiment: See Figure 13 and Figure 14 The dining table turntable involved in this embodiment differs from the first embodiment in that: the transmitting coil 4 and the receiving coil 5 are vertically aligned with each other; specifically, the inner side of the support base 1 is integrally formed with a first annular plane 103, and the transmitting coil 4 is fixedly set on the first annular plane 103; the inner side of the rotating base 2 is integrally formed with a second annular plane 203, and the receiving coil 5 is fixedly set on the second annular plane 203.

[0043] The other undescribed parts are basically the same as those in the first embodiment, so they will not be analyzed or described in detail.

[0044] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contactless power supply turntable, comprising a turntable body (A), a support base (1) supported on a tabletop (B), a rotating base (2) connected to the turntable body (A), and a power component for driving the rotating base (2) to rotate relative to the support base (1); the power component is disposed between the support base (1) and the rotating base (2), and the turntable body (A) and the rotating base (2) rotate synchronously; the power component is electrically connected to a control circuit on the support base (1); an electrical component is disposed on the turntable body (A) and / or the rotating base (2); characterized in that: A transmitting coil (4) is provided on the support base (1), and the transmitting coil (4) is electrically connected to the control circuit; a receiving coil (5) is provided on the rotating base (2), and the receiving coil (5) is electrically connected to the power supply components; the transmitting coil (4) and the receiving coil (5) correspond to each other and generate electromagnetic induction power to supply the power supply components.

2. The contactless power supply turntable according to claim 1, characterized in that: The support base (1) is provided with a first annular surface (101), and the transmitting coil (4) is wound on the first annular surface (101); the rotating base (2) is provided with a second annular surface (201), and the receiving coil (5) is wound on the second annular surface (201); the transmitting coil (4) and the receiving coil (5) are arranged coaxially inside and outside each other.

3. The contactless power supply turntable according to claim 1, characterized in that: The support base (1) is provided with a first annular plane (103), and the transmitting coil (4) is provided on the first annular plane (103); the rotating base (2) is provided with a second annular plane (203), and the receiving coil (5) is provided on the second annular plane (203); the transmitting coil (4) and the receiving coil (5) are vertically aligned with each other.

4. The contactless power supply turntable according to claim 1, characterized in that: The support base (1) and / or the rotating base (2) are provided with a first fastening position (104), and the support base (1) and the rotating base (2) are fastened to each other by the first fastening position (104) to lock the vertical position relationship between the support base (1) and the rotating base (2); the rotating base (2) is provided with an upper limit part (204) and a lower limit part (601) that are vertically corresponding to each other, and there is a limit gap (C) between the upper limit part (204) and the lower limit part (601); the support base (1) is provided with a limit function part (105), and the limit function part (105) is rotatably disposed in the limit gap (C).

5. The contactless power supply turntable according to claim 1, characterized in that: The electrical components include a human body sensor module (9) for detecting whether there is an object moving above the turntable body (A). The human body sensor module (9) is disposed on the turntable body (A) and is electrically connected to the receiving coil (5).

6. The contactless power supply turntable according to claim 5, characterized in that: The electrical components include an infrared emitting module (10) for emitting infrared signals, which is electrically connected to a human body sensing module (9). Several infrared emitting modules (10) are arranged in a ring on the turntable body (A) and rotate with the turntable body (A). Several infrared receiving modules (11) for receiving infrared signals are arranged in a ring on the support base (1). The infrared receiving modules (11) are electrically connected to the control circuit. When the human body sensing module (9) detects a moving object above the turntable body (A), the human body sensing module (9) sends feedback to the infrared emitting module (10), which emits infrared signals. The infrared receiving module (11) receives the infrared signals and then sends feedback to the control circuit. The control circuit controls the power components to stop running.

7. The contactless power supply turntable according to claim 6, characterized in that: The human body sensing module (9) includes a radar module (901) for recognizing human bodies based on radar signals. The radar module (901) is provided with a radar transmitter for transmitting radar signals to the top of the turntable body (A) and a radar receiver for receiving reflected radar signals. Several radar modules (901) are arranged in a ring at the bottom of the turntable body (A). Several radar modules (901) are connected to an infrared transmitting module (10) through a sensing circuit.

8. The contactless power supply turntable according to claim 6, characterized in that: The transmitting end of the infrared transmitting module (10) and the receiving end of the infrared receiving module (11) are aligned to each other, so that the transmitting area D1 of the infrared transmitting module (10) always overlaps with the receiving area D2 of at least one infrared receiving module (11).

9. The contactless power supply turntable according to claim 1, characterized in that: It also includes a bearing assembly, which includes a linkage bracket (3), a first rolling element (7) and a second rolling element (8). The linkage bracket (3) is movably disposed between the support base (1) and the rotating base (2). The first rolling element (7) is rotatably disposed between the support base (1) and the linkage bracket (3). The second rolling element (8) is rotatably disposed between the linkage bracket (3) and the rotating base (2).

10. The contactless power supply turntable according to claim 9, characterized in that: The power assembly includes a drive motor, a drive gear and a drive rack (301). The drive motor is mounted on the support base (1) and electrically connected to the control circuit. The drive gear is connected to the motor shaft of the drive motor. The drive rack (301) is coaxially and closed-loop mounted on the linkage bracket (3). The drive gear and the drive rack (301) mesh with each other. When the drive motor starts, the linkage bracket (3) drives the rotating base (2) to rotate through the second rolling element (8).

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