IP Library › Granted Patent US 12,507,822
Granted Patent B2
US 12,507,822 · App. 18/818,270 · Granted Dec 30, 2025

Artificial christmas tree

Inventor: Junhao Cai (Dongguan, CN)
Assignee: WINNERS GROUP INDUSTRIES COMPANY LIMITED
A47G33/06F21V23/02H02J50/10
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Quick Facts
Patent No.
US 12,507,822
App. No.
18/818,270
Granted
Dec 30, 2025
Kind
B2
Abstract

The present application discloses an artificial Christmas tree, including: a base, a tree body unit and a wireless energizing unit; wherein, the tree body unit is installed on the base and extends upwards, the wireless energizing unit is provided on the tree body unit and includes a power cable, at least one wireless transmitting module and at least one wireless receiving module, the power cable is electrically connected to the wireless transmitting module and supplies power to the wireless transmitting module, so that the wireless transmitting module generates a magnetic field, the wireless receiving module is affected by the magnetic field generated by the wireless transmitting module and generates electrical energy.

Claims (26)

1 . An artificial Christmas tree, comprising:

a base, a tree body unit and a wireless energizing unit; wherein,

the tree body unit is installed on the base and extends upwards, comprising a main trunk, the main trunk extends along a vertical direction, the wireless energizing unit is provided on the main trunk;

the wireless energizing unit includes a power cable, at least one wireless transmitting module and at least one wireless receiving module, the power cable is electrically connected to the wireless transmitting module and supplies power to the wireless transmitting module, so that the wireless transmitting module generates a magnetic field, the wireless receiving module is affected by the magnetic field generated by the wireless transmitting module and generates electrical energy; the wireless transmitting module includes a wireless transmitting coil and a transmitting module electrically connected to the wireless transmitting coil, the wireless receiving module includes a wireless receiving coil and a receiving module electrically connected to the wireless receiving coil;

wherein, at least one wireless energizing unit is an external type; in the external type wireless energizing unit, the wireless transmitting coil is coiled around an outer side of the main trunk, the transmitting module is provided on one side of the wireless transmitting coil; the wireless receiving coil is coiled around the outer side of the main trunk, the receiving module is located at one side of the wireless receiving coil;

on the same main trunk, the upper transmitting module of one wireless energizing unit is electrically connected to the lower receiving module of the other wireless energizing unit by a power cable.

2 . The artificial Christmas tree of claim 1 , wherein, the tree body unit further includes a mounting seat and a branch; the mounting seat is sleeved on the main trunk, the branch is hinged to the mounting seat.

3 . The artificial Christmas tree of claim 2 , wherein, there are two or more wireless energizing units arranged on the main trunk along a vertical direction.

4 . The artificial Christmas tree of claim 3 , wherein, the power cable at the bottom is configured to connect to a direct current power supply.

5 . The artificial Christmas tree of claim 4 , wherein further comprises

at least one internal-type wireless energizing unit, comprises at least one internal-type wireless transmitting module and at less one internal-type wireless receiving module; the wireless transmitting module includes an internal-type wireless transmitting coil and an internal-type transmitting module electrically connected to the internal-type wireless transmitting coil, the internal-type wireless receiving module includes an internal-type wireless receiving coil and an internal-type receiving module electrically connected to the internal-type wireless receiving coil;

the internal-type wireless transmitting coil is coiled around an outer side of the internal-type transmitting module and located inside the main trunk, the internal-type wireless receiving coil is coiled around the internal-type receiving module and located inside the main trunk

when the internal-type wireless transmitting module generates a magnetic field, the internal-type wireless receiving module is affected by the magnetic field generated by the internal-type wireless transmitting module and generates electrical energy.

6 . The artificial Christmas tree of claim 2 , wherein, there are two or more tree body units arranged along a vertical direction; an upper main trunk of the two or more tree body is inserted into a lower main trunk of the two or more main trunks, a lowest main trunk of the two or more main trunks is fixedly connected to the base.

7 . The artificial Christmas tree of claim 6 , wherein, the same wireless energizing unit is installed on two adjacent tree body units of the two or more tree body units; wherein, the wireless transmitting module is installed on a top of a lower main trunk of the two adjacent tree body units, and the wireless receiving module is installed on a bottom of an upper main trunk of the two adjacent tree body units.

8 . The artificial Christmas tree of claim 2 , wherein, at least one wireless energizing unit is an internal-type, wherein the wireless transmitting coil is coiled around an outer side of the transmitting module and located inside the main trunk, the wireless receiving coil is coiled around an interior of the receiving module and located inside the main trunk.

9 . The artificial Christmas tree of claim 8 , wherein, the wireless energizing unit further includes a housing, the housing is sleeved on the outer side of the main trunk; the wireless transmitting module and the wireless receiving module are located inside the housing.

10 . The artificial Christmas tree of claim 8 , further comprising a lamp group, wherein the lamp group is provided on the branch and electrically connected to the wireless receiving module.

11 . The artificial Christmas tree of claim 1 , further comprising a lamp group, the lamp group is provided on the branch and electrically connected to the wireless receiving module.

12 . An artificial Christmas tree, comprising:

a base, the base is located at the bottom of the artificial Christmas tree;

a tree body unit, the tree body unit is installed on the base, comprising two or more main trunk, the main trunk extends along a vertical direction; and

at less one external type wireless energizing unit, comprising at less one external type wireless transmitting module, at less one external type wireless receiving module and two or more housings; the housings are provided with an opening at one side, the housings are sleeved on one end of each two adjacent main trunks close to each other, the openings of two adjacent housings are provided opposite each other and a gap is provided between the housing and the main trunk to combine a box body;

the external type wireless transmitting module comprises an external type wireless transmitting coil and an external type transmitting module electrically connected to the wireless transmitting coil, the external type wireless transmitting coil is coiled around an outer side of the lower main trunk and inside the lower housing, the external type transmitting module is provided on one side of the external type wireless transmitting coil and between the housing and the external type wireless transmitting coil;

the external type wireless receiving module comprises an external type wireless receiving coil and an external type receiving module electrically connected to the wireless receiving coil; the external type wireless receiving coil is coiled around an outer side of the upper main trunk and inside the upper housing, the external type receiving module is located at one side of the external type wireless receiving coil and between the housing and the external type wireless receiving coil;

when the external type wireless transmitting module generates a magnetic field, the external type wireless receiving module is affected by the magnetic field generated by the external type wireless transmitting module and generates electrical energy.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2024
From: CAI, JUNHAO
To: WINNERS GROUP INDUSTRIES COMPANY LIMITED
Reel/Frame 068743/0556 →
Priority Claims (1)
CN 202421190756.2 · May 28, 2024 · national
Continuity (1)
Related Publication 20250366648A1 · Dec 4, 2025
References Cited (6)
US 5118196A · Ault et al. · 1992 [cited by applicant]
US 10178887B1 · Chen · 2019 [cited by examiner]
US 11793342B1 · Hall · 2023 [cited by applicant]
US 20170181560A1 · Zhou · 2017 [cited by applicant]
US 20200044453A1 · Lyden · 2020 [cited by examiner]
US 20220399757A1 · Szweda · 2022 [cited by examiner]