CN215120294U - Wireless power supply device for door body and door frame - Google Patents
Wireless power supply device for door body and door frame Download PDFInfo
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- CN215120294U CN215120294U CN202121494690.2U CN202121494690U CN215120294U CN 215120294 U CN215120294 U CN 215120294U CN 202121494690 U CN202121494690 U CN 202121494690U CN 215120294 U CN215120294 U CN 215120294U
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Abstract
The utility model discloses a door body wireless power supply device and door frame. The door body wireless power supply device is used for being arranged on a door frame and comprises a coil, a power supply circuit, a coil rack, an accommodating cavity with an opening, a power mechanism, a detection device and a control circuit. The control circuit is connected with the detection device and the power mechanism and used for driving the power mechanism when the door body is detected to be attached through the detection device, so that the coil rack extends out of the accommodating cavity, and the coil can be attached to an induction coil arranged on the door body; when the detection device detects that the door body is far away, the power mechanism is driven, so that the coil rack is accommodated in the accommodating cavity. The utility model discloses a flexible design of coil for the intracavity is acceptd in the coil retraction when the door is opened, and the coil stretches out when the door is closed and accepts chamber laminating induction coil. Thereby reducing touching of the coil.
Description
Technical Field
The utility model relates to an intelligence lock power supply technology.
Background
With the development of technology and the improvement of quality of life needs of people, more and more intelligent door locks replace the traditional mechanical locks. Compared with a traditional mechanical lock, the intelligent door lock needs power supply. The power supply of the intelligent door lock generally adopts the following two modes: the first is to supply power by a battery, and the other is to supply power by a hinge of a door body or a hinge line. Under the condition of adopting the battery power supply, the battery needs to be frequently replaced, the daily maintenance of the intelligent door lock is too much, and the intelligent door lock is inconvenient for users to use. In the hinge or hinge line-passing power supply mode, due to the fact that the hinge and the hinge are opened and closed, electric wires in the hinge or the hinge are easily abraded to generate electric leakage, and therefore safety is poor.
For this reason, a technology for wirelessly supplying power to the intelligent door lock has been developed. Wireless powering in principle generally has three types: the first is a radio wave type, the second is a magnetic field resonance type, and the third is an electromagnetic induction type. For example, in the wireless power supply technology of the smart door lock according to patent document CN 205778225U, a radio wave type is adopted; in the wireless power supply technology of the intelligent door lock related to CN 106437317 a, a magnetic field resonance type is adopted for appearance; meanwhile, in the wireless power supply technology of the smart door lock according to patent document CN 203808645U, an electromagnetic induction type is adopted.
Under the mode that radio wave and magnetic field resonance formula supply power for door body intelligence lock, electromagnetic radiation intensity is great, to the family members, the threat that the health may receive electromagnetic radiation. Under the mode that the electromagnetic induction type supplies power for the intelligent door lock of the door body, equivalently a transformer is arranged between the door frame and the door body. The electromagnetic radiation intensity is low, but in this mode, the distance between the receiver on the door body and the transmitter on the door frame is required to be closer. The door body is opened and closed frequently, and the receiver and the emitter are easy to touch and damage. When the door is opened, the door is also easily damaged by the touch of articles carried by people when the people get in and out the door.
Disclosure of Invention
The utility model discloses the problem that will solve: in the wireless power supply technology of intelligent lock of electromagnetic induction mode, the transmitter is damaged by physical touching easily.
In order to solve the above problem, the utility model discloses a scheme as follows:
according to the utility model discloses a door body wireless power supply device, include:
a coil for generating an alternating magnetic field;
the power supply circuit is connected with the coil and used for supplying power to the coil;
a bobbin for accommodating the coil;
a receiving cavity with an opening for receiving the coil former;
the power mechanism is connected with the coil rack and used for providing power for the coil rack contained in the containing cavity to extend out of the opening;
the detection device is used for detecting whether the door body is close to or not;
the control circuit is connected with the detection device and the power mechanism and used for driving the power mechanism when the door body is detected to be attached through the detection device, so that the coil rack extends out of the accommodating cavity, and the coil can be attached to an induction coil arranged on the door body; when the detection device detects that the door body is far away, the power mechanism is driven, so that the coil rack is contained in the containing cavity.
Furthermore, the door body wireless power supply device according to the utility model also comprises a box body;
the power supply circuit, the coil rack, the power mechanism, the detection device and the control circuit are arranged on the box body;
the accommodating cavity is a box cavity of the box body.
Further, according to the door body wireless power supply device of the utility model, the device is used for being installed on the door frame; the box body is provided with a box body step groove matched with the door body step groove of the door frame; the door body step groove comprises a door body step surface and a door body step section; when the door is closed, the side surface of the door body is tightly attached to the step surface of the door body; the inner side surface of the door body is tightly attached to the step section of the door body; the box body step groove comprises a box body step surface and a box body step section; when the device is installed on a door frame, the box body step surface and the box body step section are respectively flush with the door body step surface and the door body step section.
Further, according to the utility model discloses a door body wireless power supply unit, detection device sets up on the box body step face.
Further, according to the door body wireless power supply device of the utility model, the opening of the accommodating cavity is arranged on the step surface of the box body; when the coil rack extends out of the accommodating cavity, the coil rack extends out of the step surface of the box body.
Further, according to the door body wireless power supply device of the utility model, the opening of the accommodating cavity is arranged on the step section of the box body; when the coil rack extends out of the accommodating cavity, the coil rack extends out of the step section of the box body.
Further, according to the utility model discloses a door body wireless power supply unit, power unit is permanent magnetism mechanism.
Further, according to the door wireless power supply device of the present invention, the coil rack is disposed on the oscillating shaft and can oscillate around the oscillating shaft; the power mechanism is used for driving the coil rack to swing around the swinging shaft; the coil rack is enabled to extend out of the containing cavity through swinging.
Further, according to the utility model discloses a door body wireless power supply unit, the coil former swing stretch out in when acceping outside the chamber, follow the box body flushes and stretches out on the door frame medial surface, makes the coil former stretch out in can laminate the medial surface of the door body after acceping outside the chamber.
According to the utility model discloses a door frame, this door frame is provided with foretell door body wireless power supply unit.
The technical effects of the utility model are as follows: the utility model discloses a flexible design of coil for the intracavity is acceptd in the coil retraction when the door is opened, and the coil stretches out when the door is closed and accepts chamber laminating induction coil. Thereby reducing touching of the coil.
Drawings
Fig. 1 and fig. 2 are schematic cross-sectional structural diagrams of a first embodiment of the present invention. Fig. 1 shows a state where the door is opened, and fig. 2 shows a state where the door is closed.
Fig. 3 is a schematic front structural view of a first embodiment of the present invention.
Fig. 4 is a schematic cross-sectional structure diagram of a second embodiment of the present invention.
Fig. 5 is a schematic cross-sectional structure diagram of a third embodiment of the present invention.
In each of the above-described figures,
100 is a door body wireless power supply device, 1 is a box body, 11 is a box cavity, 12 is a box body step groove, 121 is a box body step surface, 122 is a box body step section, and 13 is an opening of the box cavity; 21 is a coil frame, 211 is a swing shaft, 22 is a coil, 23 is a power mechanism, 231 is a motor, 232 is a speed reducer, 24 is a control circuit, 25 is a power supply circuit, and 26 is a detection device; 3 is an induction coil; 800 is a door body, 810 is a side face, 820 is an inner side face; 900 is a door frame, 91 is a rubber pad, 920 is an inner side surface of the door frame, 92 is a door body step groove, 921 is a door body step surface, and 922 is a door body step section.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example one
Fig. 1 and 2 illustrate a door body wireless power supply apparatus mounted on a door frame 900. The device comprises a box body 1, a coil rack 21 arranged in the box body 1, a coil 22, a power mechanism 23, a control circuit 24, a power supply circuit 25 and a detection device 26. The cartridge body 1 comprises a cartridge cavity 11 having an opening 13. The case cavity 11 is a housing cavity for housing the bobbin 21.
The bobbin 21 is provided on the case 1 via a swing shaft 211, can swing around the swing shaft 211 as an axis, and houses the coil 22. The power mechanism 23 is connected to the bobbin 21 for providing the bobbin 21 with swing power. Accordingly, the bobbin 21 is driven by the power mechanism 23 to swing around the swing shaft 211, so that the bobbin 21 accommodated in the box chamber 11 is extended out of the box chamber 11 through the opening 13, or the bobbin 21 extended out of the box chamber 11 is retracted into the box chamber 11 through the opening 13.
The coil 22 is connected to a control circuit 24 and a power supply circuit 25 for generating an alternating magnetic field. Coil 22 is provided on bobbin 21 to swing in accordance with the swing of bobbin 21, and when bobbin 21 is projected out of cartridge chamber 11 by the swing, coil 22 is projected out of cartridge chamber 11 in accordance with bobbin 21; when bobbin 21 is retracted into chamber 11 by swinging, coil 22 is retracted into chamber 11 with bobbin 21.
The supply circuit 25 is used for supplying power to the coil 22. The power supply circuit 25 is commonly referred to as a power adapter.
The detection device 26 is used for detecting whether the door 800 is closed. Since the door wireless power supply device is installed on the door frame 900, the door 800 is close to the door frame 900, which means that the door 800 is in a closed state. If the door body 800 is not close to the door frame 900, it means that the door body 800 is in the open state. The detection device 26 may be a hall sensor, or a reed switch, or a photo-electric sensing device, or other proximity sensor.
The control circuit 24 is generally realized by an integrated circuit board on which a microprocessor and a memory are arranged, the connection detection means 26, the power mechanism 23 and the power supply circuit 25. The control circuit 24 implements the detection of the open and close states of the door body 800 by the microprocessor executing the software program, and then controls the power mechanism 23 whether to extend the coil rack 21 out of the box cavity 11 and controls the power supply circuit 25 whether to supply power to the coil 22 according to the detection of the open and close states of the door body 800. When the control circuit 24 detects that the door 800 is closed through the detection device 26, it means that the door 800 is closed, and thus the power mechanism 23 is driven, so that the coil former 21 extends out of the box cavity 11, and the coil 22 on the coil former 21 can be close to the induction coil 3 provided on the door 800. When the coil rack 21 extends out of the box cavity 11, the power supply circuit 25 is turned on to supply power to the coil 22, so that the coil 22 generates an alternating magnetic field, and the alternating magnetic field generated by the coil 22 generates an induced current under the induction of the induction coil 3, thereby supplying power to the components arranged on the door body 800. That is, the utility model discloses the wireless power supply technique who adopts is based on electromagnetic induction. When the control circuit 24 detects that the door 800 is not closed by the detection device 26, it means that the door 800 is opened, and thus the power supply circuit 25 is first cut off to stop supplying power to the coil 22, and then the power mechanism 23 is driven to retract the bobbin 21 into the box cavity 11.
In this embodiment, referring to fig. 3, the power mechanism 23 is composed of a motor 231 and a reducer 232. The motor 231 is connected to the bobbin 21 through a speed reducer 232.
In addition, the door wireless power supply device of the embodiment is suitable for the case that the thickness of the door 800 is small. As is well known, the inner surface 920 of the door frame 900 is provided with a door step groove 92 at the door outer end. Referring to fig. 2, when the door 800 is in a closed state, the door 800 is caught in the door step groove 92. The door step groove 92 includes a door step surface 921 and a door step section 922. The door body step surface 921 is parallel to the inner side surface 920 of the door frame, and the door body step section 922 is perpendicular to the inner side surface 920 of the door frame. The width of the door body step surface 921 matches the thickness of the door body 800. When the door body 800 is in the closed state, the side surface 810 of the door body 800 faces the door body step surface 921. When the thickness of the door 800 is small, the side surface 810 of the door 800 lacks a space for installing the induction coil 3, and accordingly, the door step surface 921 also lacks a space for installing the coil 22. The coil 22 of the swing-flip structure adopted in this embodiment can be attached to the inner side 820 of the door body 800, and accordingly, the induction coil 3 is disposed on the inner side 820 of the door body 800, thereby avoiding the problem of insufficient space on the side 810 of the door body 800. Therefore, the door body wireless power supply device of the present embodiment is disposed across the door body step groove 92 when disposed on the door frame 900. Specifically, the case 11 is provided with a case step groove 12 that matches the door step groove 92 of the door frame 900. The cartridge step groove 12 includes a cartridge step surface 121 and a cartridge step section 122. When the door wireless power supply device of the present embodiment is installed on the door frame 900, the box step surface 121 is flush with the door step surface 921, and the box step section 122 is flush with the door step section 922. The opening 13 of the chamber 11 is located on the inner side of the door frame 900. The detection device 26 is arranged on the box body step surface 121. When the door 800 is closed, the detection device 26 faces the side face 810 of the door 800. When the coil frame 21 is turned out of the chamber 11, it is turned out of the inner surface 920 of the door frame 900, so that the coil 22 is attached to the induction coil 3 provided on the inner surface 820 of the door body 800.
In the present embodiment, the coil 22 is electrically connected to the control circuit 24 and the power supply circuit 25 by an insulated cord. The swinging and overturning of the bobbin 21 does not affect the electrical connection between the coil 22 and the control circuit 24 and the power supply circuit 25, and the cord is not worn by the swinging and overturning of the bobbin 21.
Example two
The embodiment is a door frame which is provided with a door body wireless power supply device. The door frame 900 is one of the components of the security door. Referring to fig. 4, the door frame 900 is made of metal as a whole, and a rubber pad 91 is provided on a door step section 922 of the door frame 900. The rubber pad 91 plays a role in buffering when the door body is closed. The wireless power supply device for the door body comprises a box body 1, and a coil rack 21, a coil 22, a power mechanism 23, a control circuit 24, a power supply circuit 25 and a detection device 26 which are arranged in the box body 1.
Compared with the doorframe 900 in the first embodiment, the doorframe 900 in the present embodiment has a wider door body step section 922. The opening 13 of the box cavity 11 of the door wireless power supply device is arranged on the step section 122 of the box body. The power mechanism 23 is a linear telescopic driving mechanism, and preferably adopts a permanent magnet mechanism. When the coil bobbin 21 is extended out of the case cavity 11, it is linearly extended out of the opening 13 of the stepped section 122 of the case body and passes through the escape hole provided in the rubber pad 91.
Considering that the detection device 26 needs to be directed to the side surface 810 of the door body 800, the case 1 of the present embodiment is also provided with the case step groove 12 that matches the door body step groove 92 of the door frame 900. The case step surface 121 and the case step cross section 122 of the case step groove 12 are flush with the door step surface 921 and the door step cross section 922 of the door step groove 92, respectively. The detection device 26 is arranged on the box body step surface 121.
EXAMPLE III
The embodiment is a door frame in a security door, which is provided with a door wireless power supply device. Referring to fig. 5, the door frame 900 is made of metal as a whole, and a rubber pad 91 is provided on a stepped section 922 of the door body of the door frame 900. The rubber pad 91 plays a role in buffering when the door body is closed. The wireless power supply device for the door body comprises a box body 1, and a coil rack 21, a coil 22, a power mechanism 23, a control circuit 24, a power supply circuit 25 and a detection device 26 which are arranged in the box body 1.
Compared to the door frame 900 of the second embodiment, the door frame 900 of the present embodiment has a wider door step surface 921. The opening 13 of the box cavity 11 of the door wireless power supply device is arranged on the step surface 121 of the box body. When the door wireless power supply device is installed on the door frame 900, the power mechanism 23 is a linear telescopic driving mechanism, and preferably adopts a permanent magnet mechanism. The bobbin 21 extends linearly from the opening 13 of the stepped surface 121 of the case body when extending out of the case cavity 11. In this case, the induction coil 3 provided on the door 800 is located on the side surface 810 of the door 800.
In the present embodiment, the detection device 26 and the bobbin 21 are arranged side by side, and the detection device 26 is located on the door body step surface 921. Fig. 5, although not illustrating the location of the detection device 26, does not impede understanding by those skilled in the art. Since both the coil bobbin 21 and the detection device 26 are located on the door body step surface 921 with respect to the door frame 900, the case 1 of the present embodiment does not need the case step groove 12 that matches the door body step groove 92 of the door frame 900. In this embodiment, the box body 1 of the door wireless power supply device adopts a square structure.
Claims (10)
1. A door wireless power supply device, comprising:
a coil for generating an alternating magnetic field;
the power supply circuit is connected with the coil and used for supplying power to the coil;
a bobbin for accommodating the coil;
a receiving cavity with an opening for receiving the coil former;
the power mechanism is connected with the coil rack and used for providing power for the coil rack contained in the containing cavity to extend out of the opening;
the detection device is used for detecting whether the door body is close to or not;
the control circuit is connected with the detection device and the power mechanism and used for driving the power mechanism when the door body is detected to be attached through the detection device, so that the coil rack extends out of the accommodating cavity, and the coil can be attached to an induction coil arranged on the door body; when the detection device detects that the door body is far away, the power mechanism is driven, so that the coil rack is contained in the containing cavity.
2. The door wireless power supply device according to claim 1, further comprising a box body;
the power supply circuit, the coil rack, the power mechanism, the detection device and the control circuit are arranged on the box body;
the accommodating cavity is a box cavity of the box body.
3. The door body wireless power supply device according to claim 2, wherein the device is used for being mounted on a door frame; the box body is provided with a box body step groove matched with the door body step groove of the door frame; the door body step groove comprises a door body step surface and a door body step section; when the door is closed, the side surface of the door body is tightly attached to the step surface of the door body; the inner side surface of the door body is tightly attached to the step section of the door body; the box body step groove comprises a box body step surface and a box body step section; when the device is installed on a door frame, the box body step surface and the box body step section are respectively flush with the door body step surface and the door body step section.
4. The door wireless power supply device according to claim 3, wherein the detection device is arranged on a step surface of the box body.
5. The door wireless power supply device according to claim 3, wherein an opening of the accommodating cavity is formed in a step surface of the box body; when the coil rack extends out of the accommodating cavity, the coil rack extends out of the step surface of the box body.
6. The door wireless power supply device according to claim 3, wherein the opening of the accommodating cavity is arranged on the step section of the box body; when the coil rack extends out of the accommodating cavity, the coil rack extends out of the step section of the box body.
7. The door body wireless power supply device according to claim 5 or 6, wherein the power mechanism is a permanent magnet mechanism.
8. The door body wireless power supply device according to claim 2, wherein the coil bobbin is provided on a swing shaft, and is capable of swinging around the swing shaft; the power mechanism is used for driving the coil rack to swing around the swinging shaft; the coil rack extends out of the accommodating cavity through swinging; when the coil rack swings and extends out of the accommodating cavity, the coil rack is flush with the box body and extends out of the inner side face of the door frame, so that the coil rack can be attached to the inner side face of the door body after extending out of the accommodating cavity.
9. The door body wireless power supply device of claim 8, wherein the power mechanism comprises a motor and a speed reducer.
10. A door frame, characterized in that the door frame is provided with a wireless power supply device for the door body according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121494690.2U CN215120294U (en) | 2021-07-02 | 2021-07-02 | Wireless power supply device for door body and door frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121494690.2U CN215120294U (en) | 2021-07-02 | 2021-07-02 | Wireless power supply device for door body and door frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215120294U true CN215120294U (en) | 2021-12-10 |
Family
ID=79313447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121494690.2U Active CN215120294U (en) | 2021-07-02 | 2021-07-02 | Wireless power supply device for door body and door frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215120294U (en) |
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2021
- 2021-07-02 CN CN202121494690.2U patent/CN215120294U/en active Active
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