CN115347365A

CN115347365A - Electronic door bell

Info

Publication number: CN115347365A
Application number: CN202211051687.2A
Authority: CN
Inventors: 杨淑侠
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-11-15

Abstract

The invention discloses an electronic doorbell which comprises a front shell, an electric control board, an antenna assembly and a heat dissipation assembly. The electric control board is provided with a feed point. The antenna assembly is arranged on the front shell and connected with the feed point of the electric control board. The position of the radiating component close to the electric control board is arranged on the front shell, and a gap is formed in the position of the radiating component corresponding to the antenna component. According to the invention, the slot is arranged on the radiating component corresponding to the position of the antenna component, so that the received/transmitted signal of the antenna component can be transmitted through the slot, thereby reducing the interference of the radiating component on the antenna component and improving the radiation performance of the antenna component in the electronic doorbell. The invention is beneficial to solving the interference of the radiating component with one-piece integral design on the antenna, reduces the area of the radiating component by arranging the gap, and reduces the cost. And meanwhile, the heat dissipation performance is not influenced.

Description

Electronic door bell

Technical Field

The invention relates to an electronic doorbell, in particular to an electronic doorbell.

Background

The functions of the electronic doorbell are more and more abundant, the number of metal devices in the electronic doorbell is more and more, and the metal devices can generate heat during working, so that a radiating fin is required to be arranged for radiating heat. The radiating fins in the electronic doorbell are generally made of metal materials, and the radiating fins are designed in two pieces and are symmetrically distributed on two sides of the doorbell. The metal radiating fins can absorb a part of electromagnetic wave energy in the air, so that the energy conversion efficiency of the whole communication system is reduced, and the communication effect of the antenna is further influenced.

Disclosure of Invention

The invention mainly aims to provide an electronic doorbell, aiming at reducing the interference of a radiating fin on an antenna.

In order to achieve the above object, the present invention provides an electronic doorbell, comprising:

a front housing;

the electric control board is provided with a feed point;

the antenna assembly is arranged on the front shell and is connected with the feed point of the electric control board;

and the heat dissipation assembly is arranged at the front shell at a position close to the electric control board, and is provided with a gap used for transmitting signals by the antenna assembly.

In one embodiment, the electronic doorbell further comprises:

the cover plate and the front shell are enclosed to form a first cavity, and the electric control board, the antenna assembly and the heat dissipation assembly are contained in the first cavity;

the electric control board is arranged on the cover plate and is abutted with the antenna assembly;

or, the electric control board is arranged on the front shell, and the antenna assembly is arranged on the electric control board.

In one embodiment, the front housing has a mounting portion to which the antenna assembly is mounted;

the installation department with the apron encloses to close and forms the second cavity that is located first cavity, the antenna module set up in the second cavity.

In one embodiment, the electronic doorbell further comprises:

and the sealing ring is fixed on the front shell and surrounds the installation part.

In one embodiment, the heat dissipation assembly includes:

the first radiating fin is arranged outside the first cavity, gaps are formed in the first radiating fin, and the number and the positions of the gaps correspond to those of the antenna assembly.

In one embodiment, a heat dissipation assembly includes:

the second radiating fin and the third radiating fin are arranged outside the first cavity at intervals, and the position of a gap formed between the second radiating fin and the third radiating fin corresponds to the antenna assembly.

In one embodiment, the number of the second cooling fins and the third cooling fins is multiple;

the second radiating fins are arranged outside the first cavity at intervals along a first direction of the side edge of the front shell, and the third radiating fins are arranged outside the first cavity at intervals along a second direction of the side edge of the front shell; wherein the first direction and the second direction are opposite.

In one embodiment, the heat dissipation assembly further comprises a fourth heat dissipation sheet;

the fourth heat dissipation plate is arranged outside the first cavity and far away from the antenna assembly.

In an embodiment, the antenna assembly includes a first antenna;

the first antenna is arranged far away from the fourth heat dissipation sheet;

the first antenna is used for remote communication with the mobile terminal.

In an embodiment, the antenna assembly includes a second antenna;

the second antenna is arranged close to a gap formed between the second radiating fin and the third radiating fin so as to transmit signals through the gap;

the second antenna is used for near field communication with the mobile terminal.

According to the invention, the slot is arranged on the radiating component corresponding to the position of the antenna component, so that the received/transmitted signal of the antenna component can be transmitted through the slot, thereby reducing the interference of the radiating component on the antenna component and improving the radiation performance of the antenna component in the electronic doorbell. The invention is beneficial to solving the interference of the radiating component with one-piece integral design on the antenna, reduces the area of the radiating component by arranging the gap, and reduces the cost. And meanwhile, the heat dissipation performance is not influenced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of an electronic doorbell according to the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of an electronic doorbell according to the present invention;

FIG. 3 is a schematic structural diagram of a first heat sink according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a second and third heat sink according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of an electronic doorbell according to the present invention;

fig. 6 is a schematic structural diagram of an antenna according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another embodiment of an antenna according to the present invention;

fig. 8 is a schematic structural diagram of an antenna according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an antenna according to an embodiment of the present invention.

Reference numerals	Name(s)	Reference numerals	Name (R)
				310	Front shell	320	Electric control board
331	First antenna	332	Second antenna
				341	The first heat sink	342	Second heat sink
343	Third heat sink	344	The fourth heat dissipation sheet
				350	Cover plate	360	Sealing ring
371	A first radiation part	372	Second radiation part
				373	Feeding unit	374	Ground feeding part
375	Metal salient point	376	Fixing part
				377	Locating hole

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides an electronic doorbell, comprising:

a carrier;

a first antenna 331 fixed to the carrier;

and a second antenna 332 disposed on the carrier at an interval from the first antenna 331, wherein a communication distance of the second antenna 332 is smaller than a communication distance of the first antenna 331.

An existing electronic doorbell generally uses a bluetooth antenna or a WiFi antenna to communicate with a mobile terminal or access the internet of things. But the bluetooth antenna or WiFi antenna has a limited transmission distance. The present embodiment employs a dual antenna design, wherein the first antenna 331 is used for long distance communication and the second antenna 332 is used for short distance communication. The antenna operates by receiving electromagnetic waves, and electromagnetic waves of various frequencies exist in space. If the two antennas are too close, electromagnetic waves with the same frequency and independent of the antennas may be received when the antennas receive the electromagnetic waves, thereby interfering with normal communication. Therefore, in the present embodiment, the first antenna 331 and the second antenna 332 are disposed at an interval to achieve spatial isolation, so as to reduce mutual interference between the two antennas.

The first antenna 331 may be a LoRa antenna, and the second antenna 332 may be any one of a bluetooth antenna, a WiFi antenna, and a Zigbee antenna. The LoRa antenna can realize long-distance communication of up to 10 miles under the condition of line of sight, and has deep penetration capability for penetrating concrete and leaves and ultra-low power consumption requirement. The combination of the extremely high power efficiency and interference rejection capability, the low receive bandwidth and the unique coding scheme of the LoRa radio enables receiver sensitivity as low as-140 dBm. These characteristics make the LoRa-based antenna well suited for applications where telecommunication is to be conducted between low power devices. However, with the continuous development of LoRa, the number of LoRa devices and network deployments is increasing, and certain spectrum interference occurs between each other. In the layout process of the LoRa, a user needs to build a network by himself. The Bluetooth antenna is suitable for short-distance data transmission, low in power consumption, convenient for battery power supply equipment to work, capable of supporting transmission of texts, pictures and audio and video, high in transmission rate and low in time delay. WiFi antennas are also suitable for short-range data transmission, where a network can be accessed at any location within the coverage area of a wireless signal, and a user connected to a wireless local area network can move while remaining connected to the network. In this embodiment, constitute wireless communication module through adopting loRa antenna and bluetooth/wiFi antenna biantenna. The Bluetooth/WiFi antenna solves the problem of short-distance connection of low power consumption, and the LoRa antenna solves the problem of long-distance connection of low power consumption, so that the electronic doorbell can realize longer-distance communication and lower power consumption.

Alternatively, the first antenna 331 and the second antenna 332 are both bluetooth/WiFi antennas, that is, the electronic doorbell may adopt a dual WiFi antenna design, or a dual bluetooth antenna design, or a WiFi antenna and a bluetooth antenna design. When one antenna fails in communication, the other antenna can be used for communication, and the reliability of the electronic doorbell is improved.

The electronic doorbell further includes a front shell 310, the front shell 310 forming a receiving cavity for receiving the first antenna 331 and the second antenna 332. Due to the limited inner space of the accommodating cavity, in addition to the first antenna 331 and the second antenna 332, a camera, a speaker, a display screen, an electronic control board 320 and the like are placed. In a limited space, the placement positions of the first antenna 331 and the second antenna 332 need to be considered, so as to achieve a better isolation degree and avoid mutual interference between the two antennas. In the present embodiment, the first antenna 331 and the second antenna 332 are disposed at an interval, for example, the first antenna 331 and the second antenna 332 are symmetrically disposed on the same side of the front housing 310; alternatively, the first antenna 331 and the second antenna 332 are symmetrically disposed on two opposite sides of the front case 310; alternatively, the first antenna 331 and the second antenna 332 are disposed at two opposite corners of the front case 310, so that a certain space is maintained between the first antenna 331 and the second antenna 332, thereby achieving spatial isolation. Wherein, the distance between the first antenna 331 and the second antenna 332 is not less than 20mm.

According to the invention, through the design of the double antennas, the wireless communication between the electronic doorbell and the mobile terminal is more stable. Through setting up first antenna and second antenna interval, realize the isolation of two antennas, avoid two antennas to interfere with each other, and then improve the radiation performance of first antenna and second antenna.

In an embodiment, the minimum distance s between the first antenna 331 and the second antenna 332 is not less than 20mm.

In general, the greater the minimum distance s between the first antenna 331 and the second antenna 332, the better the isolation. However, the electronic doorbell has a limited size, and if the minimum distance s between the first antenna 331 and the second antenna 332 is too small, the first antenna and the second antenna may interfere with each other, which may affect communication with the mobile terminal. The minimum distance s between the first antenna 331 and the second antenna 332 is set to be not less than 20mm by placing the first antenna 331 and the second antenna 332 in a limited space, and the requirement of the lowest isolation can be met.

In an embodiment, the first antenna 331 is a LoRa antenna, and the second antenna 332 is a bluetooth or Wifi antenna.

In this embodiment, constitute the wireless communication module of electronic doorbell through adopting loRa antenna and bluetooth/wiFi antenna biantenna. The Bluetooth/WiFi antenna solves the problem of short-distance connection of low power consumption, and the LoRa antenna solves the problem of long-distance connection of low power consumption, so that the electronic doorbell can realize longer-distance communication and lower power consumption.

The electronic doorbell further comprises a front shell 310 and an electronic control board 320, and the carrier is the front shell 310 or the electronic control board 320;

the first antenna 331 and the second antenna 332 are both disposed on the front case 310;

alternatively, the first antenna 331 and the second antenna 332 are both disposed on the electronic control board 320;

alternatively, the first antenna 331 and the second antenna 332 are respectively disposed on the front case 310 and the electronic control board 320.

In this embodiment, the electric control board 320 is provided with a first feeding point and a second feeding point, the first antenna 331 and the second antenna 332 are fixed on the front case 310 by hot melting, and the electric control board is disposed above the first antenna 331 and the second antenna 332, so that the first feeding point and the second feeding point of the electric control board 320 are respectively abutted to the first antenna 331 and the second antenna 332. Therefore, the structures of the first antenna 331 and the second antenna 332 are more stable, the contact between the electric control board 320 and the first antenna 331 and the second antenna 332 is more reliable, frequency deviation does not occur, and the stability of signal transmission is improved.

Or, the first antenna 331 and the second antenna 332 are both welded on the electronic control board 320, so that the first antenna 331 and the second antenna 332 are fixed to the first feeding point and the second feeding point of the electronic control board 320, respectively, and are not easy to displace. Meanwhile, the first antenna and the second antenna may be far away from the electronic device (e.g., a doorbell button, a display screen, a camera, etc.) on the front shell 100, so as to reduce interference of the electronic device on the antennas.

Alternatively, the first antenna 331 and the second antenna 332 are disposed on the front case 310 and the electronic control board 320, respectively. For example, the first antenna 331 is disposed on the front case 310, and the second antenna 332 is disposed on the electronic control board 320; alternatively, the first antenna 331 is disposed on the electronic control board 320, and the second antenna 332 is disposed on the front housing 310. Thus, compared with the case that the two antennas are simultaneously arranged on the front shell, the area of the front shell occupied by the two antennas is reduced. Meanwhile, the first antenna 331 and the second antenna 332 can avoid electronic devices inside the electronic doorbell and are arranged at positions more favorable for signal transmission. For example, the first antenna 331 is disposed on the electronic control board and the second antenna 332 is disposed near the front case edge, away from the electronics. The edge of the front shell is not provided with a shielding object, so that the antenna signal transmission is facilitated.

In one embodiment, the electronic doorbell further comprises a cover plate 350;

the cover plate 350 and the front case 310 form a cavity, and the first antenna 331, the second antenna 332 and the electronic control board 320 are disposed in the cavity.

In this embodiment, the cover plate 350 may be made of metal. The cover plate is assembled with the front shell through the screws and then installed on the door plate, and the whole structure is high in fire-proof grade, high in reliability and beneficial to heat dissipation. In addition, the cover plate can also be made of plastic.

The cover plate 350 and the front case 310 form a sealed cavity, and the first antenna 331, the second antenna 332 and the electronic control board 320 are accommodated in the sealed cavity, so that the electronic devices in the sealed cavity are prevented from being damaged by dust particles colliding with the outside, and the first antenna 331, the second antenna 332 and the electronic control board 320 are protected. And can alleviate the influence of factors such as temperature variation, humidity variation, weather on the first antenna 331, the second antenna 332 and the electronic control board 320.

In one embodiment, the electronic doorbell further comprises a doorbell button;

the doorbell button is located on the preceding shell, first antenna 331 with second antenna 332 divides to be located the both sides of doorbell button.

In this embodiment, the first antenna 331 and the second antenna 332 are respectively disposed on two sides of the button of the doorbell, so as to realize a spatial interval between the first antenna and the second antenna, thereby avoiding mutual interference between the two antennas.

The electronic doorbell is arranged on the door plate, and the existing door plate is usually made of metal in order to improve the anti-theft and fireproof performances. In addition, the cover plate 350 is made of metal. It will be appreciated that metal couples the antenna signal. After the antenna radiates electromagnetic waves out of the antenna or before the received electromagnetic waves enter the antenna, the metal absorbs a part of electromagnetic wave energy in the air, so that the energy conversion efficiency of the whole communication system is reduced, and the communication effect is further influenced. The LoRa antenna and the bluetooth/Wifi antenna are antennas with the same frequency band, and when the coupling degree of the cover plate 350 to the LoRa antenna and the bluetooth/Wifi antenna is the same, that is, the degree of the cover plate 350 absorbing the electromagnetic waves transmitted or received by the LoRa antenna and the bluetooth/Wifi antenna is the same, the interference between the LoRa antenna and the bluetooth/Wifi antenna is small; if the coupling degree that apron 350 was different to loRa antenna and bluetooth Wifi antenna, the interference between loRa antenna and bluetooth Wifi antenna is great.

In this embodiment, when the cover plate 350 is in a regular pattern such as a rectangle, a diamond, a circle, etc., the first antenna 331 and the second antenna 332 are respectively disposed on two sides of the central axis of the cover plate 350, so that the minimum distances between the first antenna 331 and the central point of the cover plate 350 and the minimum distances between the second antenna 332 and the central point of the cover plate 350 are equal. The distances between the cover plate 350 and the metal door panel around the electronic doorbell and between the points and the first antenna 331 and the second antenna 332 are axisymmetric or centrosymmetric, so that the total energy of the cover plate 350 and the metal door panel around the electronic doorbell, which is used for absorbing the electromagnetic waves transmitted/received by the first antenna 331 and the second antenna 332, is the same, that is, the coupling degrees of the cover plate 350 and the metal door panel around the electronic doorbell to the first antenna 331 and the second antenna 332 are the same, the coupling difference between the first antenna 331 and the second antenna 332 is reduced, the interference between the first antenna 331 and the second antenna 332 is further reduced, and the signal transmission efficiency is improved.

In one embodiment, the electronic doorbell further comprises a third antenna;

the third antenna is fixed on the front shell 310 or the electric control board 320, and the minimum distance between the third antenna and the first antenna 331 and the second antenna 332 is not less than 20mm.

In this embodiment, the number of the third antennas may be multiple. The third antenna may be disposed at a corner of the front case 310 to ensure a distance as far as possible from the first antenna 331 and the second antenna 332. In order to avoid mutual interference between the antennas, the distance between the third antenna and the first antenna 331 and the second antenna 332 is set to be not less than 20mm in the present embodiment, so as to achieve better isolation.

In an embodiment, the third antenna is one of a bluetooth antenna, a Wifi antenna, and a LoRa antenna.

In this embodiment, the electronic control board 320 is further provided with a third feeding point, and the third antenna may be disposed on the front housing 310 and abut against the electronic control board 320 disposed on the cover plate 350. Alternatively, the third antenna may be soldered to the third feeding point on the electronic control board 320.

This embodiment is designed to adopt a dual WiFi antenna, or a dual bluetooth antenna, or a WiFi antenna and a bluetooth antenna. When one antenna signal is not good, the other antenna can be used for short-distance communication, and the reliability of the electronic doorbell is improved.

In one embodiment, the electrical control board 320 is disposed on the cover 350 and abuts against the first antenna 331, the second antenna 332 and the third antenna;

alternatively, the electronic control board 320 is disposed on the front case 310, and the first antenna 331, the second antenna 332 and the third antenna are mounted on the electronic control board 320.

In this embodiment, the electric control board 320 is disposed on the cover plate 350, and the first antenna 331, the second antenna 332, and the third antenna are fixed on the front housing 310 by thermal melting, so that the position of the antenna is stable, and the uniformity of the antenna is not affected by displacement. When the cover plate 350 is enclosed by the front case 310, the electric control board 320 is abutted to the first antenna 331, the second antenna 332 and the third antenna, so that the feeding point on the electric control board 320 is more reliably contacted with the first antenna 331, the second antenna 332 and the third antenna, thereby avoiding the adverse effect of the contact between the antennas and the feeding point on the communication effect.

Or, the electric control board 320 is disposed on the front case 310, and the first antenna 331, the second antenna 332, and the third antenna are respectively welded to the feeding points on the electric control board 320, so that the contact areas between the first antenna 331 and the electric control board 320 and the second antenna 332 are fixed and are not easy to displace.

In an embodiment, the electronic doorbell further comprises a heat dissipation assembly, and the heat dissipation assembly is attached to the front shell 310 at a position close to the electronic control board 320.

It will be appreciated that the antenna inside the electronic doorbell, the circuitry on the electronic control board 320, and other electronic devices may generate heat during operation, causing the temperature within the cavity to rise. For temperature sensitive electronic devices, such as transistors, capacitors, etc., the increase in temperature can cause unstable performance and even affect the lifetime. This embodiment is through setting up radiator unit with the heat conduction in the cavity to preceding shell, in shell conduction to outside air before again, realize the radiating effect.

The invention provides another electronic doorbell, which comprises:

a front case 310;

an electric control board 320 provided with a feeding point;

and the heat dissipation assembly is arranged at the front shell at a position close to the electric control board, and is provided with a gap used for the antenna assembly to transmit signals.

In this embodiment, the electronic control board 320 is provided with a plurality of functional circuits, such as a radio frequency generating circuit, a power supply circuit, a main control circuit, and the like. The input end of the radio frequency generating circuit is connected with the main control circuit, and the output end of the radio frequency generating circuit is connected with the antenna assembly through the feeding point so as to feed electricity to the antenna assembly, so that the antenna assembly realizes the emission and the reception of electromagnetic waves. The electronic control board 320 may be fixed on the front case 310, and the antenna assembly is mounted on the electronic control board 320; alternatively, the antenna assembly is fixed to the front case 310 by heat fusion, and the electronic control board 320 is disposed above the antenna assembly and abuts against the antenna assembly. Further, the electronic control board 320 may be an aluminum substrate. The aluminum substrate is a metal-based copper-clad plate with good heat dissipation function, and a single-sided board generally comprises three layers, namely an insulating layer, a circuit layer and a metal base layer. The functional circuit is electrically connected through the circuit layer on the aluminum substrate, and meanwhile, heat generated by the functional circuit can be conducted to the outside of the accommodating cavity through the aluminum substrate, so that heat dissipation is realized.

The radiating assembly comprises radiating fins, gaps can be arranged on the radiating fins, and the number and the positions of the gaps correspond to those of the antenna assembly; alternatively, the number of the heat dissipation fins may be multiple, the multiple heat dissipation fins are disposed on the periphery of the accommodating cavity and are arranged at intervals along the inner wall of the front shell 310, and a gap formed between adjacent heat dissipation fins corresponds to the antenna assembly. The heat sink is usually made of metal, which may interfere with signal transmission of the antenna assembly. By arranging the slot on the radiating assembly, the antenna assembly can transmit or receive signals through the slot, and the interference of the metal radiating fin on the antenna assembly is reduced.

The electronic doorbell further comprises electronic devices such as a camera, a key, a display screen and a loudspeaker which are arranged on the front shell 310, and the electronic devices and the functional circuits arranged on the electric control board 320 can generate heat during working to enable the temperature of the middle area of the accommodating cavity to rise. The electric control board 320 has a plurality of functional circuits, and generates a large amount of heat during operation, so that the temperature of the electric control board 320 is rapidly increased. The heat dissipation assembly is arranged close to the electric control board 320, conducts heat on the electric control board 320 to the periphery and conducts the heat to the outside of the accommodating cavity through the wall of the front shell 310, so that the temperature in the accommodating cavity is reduced, and the heat dissipation effect is realized.

According to the embodiment, the slot is arranged on the radiating assembly corresponding to the antenna assembly, so that the received/transmitted signal of the antenna assembly can be transmitted through the slot, the interference of the radiating assembly on the antenna assembly is reduced, and the radiation performance of the antenna assembly in an electronic doorbell is improved. The invention is beneficial to solving the interference of the radiating component with one-piece integral design on the antenna, reduces the area of the radiating component by arranging the gap, and reduces the cost. And meanwhile, the heat dissipation performance is not influenced.

In one embodiment, the electronic doorbell further comprises:

a cover plate 350, the cover plate 350 and the front case 310 enclose a first cavity, and the electronic control board 320, the antenna assembly and the heat dissipation assembly are accommodated in the first cavity;

the electric control board 320 is arranged on the cover plate and is abutted with the antenna component;

alternatively, the electronic control board 320 is disposed on the front housing, and the antenna assembly is mounted on the electronic control board 320.

In this embodiment, the cover plate 350 and the front housing 310 enclose to form a first cavity, and the electronic control board 320, the antenna assembly and the heat dissipation assembly are accommodated in the first cavity, so as to play a role in dust prevention and/or water prevention, and reduce the influence of the external environment on the electronic control board 320, the antenna assembly and the heat dissipation assembly.

In one embodiment, the front housing 310 has a mounting portion to which the antenna assembly is mounted.

The mounting portion with the apron 350 encloses to close and forms the second cavity that is located first cavity, the antenna module set up in the second cavity.

In this embodiment, the mounting portion and the cover plate 350 enclose, a second cavity is formed in the first cavity, and the electronic control board 320 and the antenna assembly are disposed in the second cavity. Besides, electronic devices such as a doorbell button, a camera and a display screen are also arranged in the second cavity. The double cavity that this embodiment formed through installation department and preceding shell 310 and apron is got up electronic components such as automatically controlled board 320, antenna module and doorbell button, camera, display screen protection, and effective separation dust particle and debris get into and cause electric interference. The heat dissipation assembly is disposed outside the second cavity, and is connected to the mounting portion and the front housing, respectively, to conduct heat in the second cavity to the first cavity, and to conduct heat outside the first cavity through the front housing 310 having a larger area. The heat dissipation assembly is arranged outside the first cavity and can be isolated from the antenna assembly in space through the mounting portion, and therefore the influence of the heat dissipation assembly on the antenna assembly is reduced. In addition, the region outside the second cavity and in the first cavity can also be used for setting parts such as mounting posts and limiting posts so as to be fixed with the cover plate, so that the positions of the parts such as the mounting posts and the limiting posts are prevented from being additionally reserved in the mounting part, and the layout positions of the electric control board 320, the antenna assembly and the electronic device are limited.

This embodiment encloses through apron 350 and preceding shell 310 and closes and form first way sealed, and apron 350 encloses with the installation department and closes and form the sealed dual seal that realizes of second way, has better sealed effect. In addition, in order to ensure the aesthetic appearance of the electronic doorbell, the sealing between the cover plate 350 and the mounting portion may be enhanced, and a simple sealing between the cover plate 350 and the front case 310 may be performed.

In one embodiment, the electronic doorbell further comprises:

and a sealing ring 360, wherein the sealing ring 360 is fixed on the front shell and surrounds the installation part.

The sealing ring 360 can effectively prevent liquid such as water and water or impurities such as dust particles from entering the second cavity, so that the antenna assembly and the electronic control board 320 are protected from being damaged by the liquid, and a waterproof, moistureproof and/or dustproof effect is achieved. The heat dissipation assembly is disposed outside the second cavity, and is connected to the sealing ring 360 and the front shell 310, respectively, so as to conduct heat in the second cavity to the second cavity, and conduct heat to the outside of the first cavity through the front shell 310 with a larger area.

This embodiment encircles the installation department through setting up sealing washer 360, plays dampproofing and waterproofing's effect to antenna module and other electronic components that set up in the installation department, avoids inside liquid, aqueous vapor or dust particle entering antenna module or other electronic components and causes corruption or short circuit to prolong its life.

In one embodiment, a groove is formed between the mounting portion and the side of the front case 310, and the heat dissipation assembly is disposed in the groove.

In this embodiment, set up radiator unit in the recess that forms between the side of installation department and preceding shell 310 to make it contact with sealing washer 360 and preceding shell 310 respectively, in order to conduct the heat that produces in the installation department antenna module and other electronic components during operation to radiator unit from the installation department, in rethread radiator unit conducts preceding shell 310 and the air, in the air of shell 310 outside the preceding shell 310 of shell 310 is conducted to by preceding shell 310 of bigger area finally, realize the radiating effect. Further, a thermally conductive silicone may be filled between the sealing ring 360 and the heat dissipation assembly and/or between the heat dissipation assembly and the front case 310. The heat conduction silica gel can well fill gaps of the contact surface and extrude air out of the contact surface. Air is a poor conductor of heat and can severely impede the transfer of heat between the contacting surfaces. With the supplement of the heat-conducting silica gel, the heat dissipation assembly can be in full contact with the sealing ring 360 and the front shell 310, so that the temperature difference is as small as possible and the heat is dissipated quickly.

Still be equipped with a plurality of reference columns and a plurality of screw post on the recess. The position interval arrangement that a plurality of reference columns correspond radiator unit is on the recess, and the last position that corresponds the reference column of radiator unit still is equipped with a plurality of locating holes 377, and the reference column runs through locating hole 377, is fixed in radiator unit on the recess, prevents radiator unit displacement, influences the radiating effect. A plurality of screw posts are arranged on the grooves at positions avoiding the heat dissipation assembly, and the screw posts are used for being fixedly connected with the cover plate 350. The studs may be disposed in the gaps of the heat dissipation assembly, and the gaps of the heat dissipation assembly correspond to the space on the front housing 310, and the performance of the antenna assembly is not affected.

In the embodiment, the heat dissipation assembly is arranged in the groove formed between the mounting part and the side edge of the front shell 310, so that heat generated when the antenna assembly and other electronic components in the mounting part work can be effectively conducted. The groove can be further provided with a positioning column for fixing the heat dissipation assembly, the screw column is arranged to enable the front shell 310 to be fixedly connected with the cover plate 350, the screw column does not need to be arranged in the space where the installation part is not occupied, the antenna assembly and electronic devices such as a doorbell button, a camera and a display screen in the installation part do not need to be designed to avoid, and the position of the antenna assembly and the doorbell button can be flexibly set.

In one embodiment, the heat dissipation assembly includes:

a first heat sink 341 disposed outside the first cavity, the heat sink having a gap, the number and position of the gaps corresponding to the antenna assembly.

In this embodiment, the heat dissipation assembly may be a heat dissipation sheet designed in one piece, and a gap is provided at a position on the heat dissipation sheet corresponding to the antenna assembly, so that a signal of the antenna assembly may be transmitted through the gap. Wherein the width of the gap is not less than 1mm. When the number of the antenna components is multiple, the number of the gaps is consistent with the number of the antenna components.

The gap is arranged on the radiating fin corresponding to the position of the antenna assembly, so that signals of the antenna assembly can be transmitted through the gap, the interference of the radiating fin on the antenna assembly is reduced, the structure is simple, the implementation is easy, and the radiating performance is not influenced.

In one embodiment, a heat dissipation assembly includes:

a second heat sink 342 and a third heat sink 343, wherein the second heat sink 342 and the third heat sink 343 are disposed outside the first cavity at an interval, and a gap formed between the second heat sink 342 and the third heat sink 343 corresponds to the antenna assembly.

In this embodiment, the heat dissipation member may be the second and third

heat dissipation fins

342 and 343, which are separately designed. A gap formed between the second and third

heat radiating fins

342 and 343 corresponds to the antenna assembly so that a signal of the antenna assembly can be transmitted through the gap. Wherein, the distance between the second heat dissipation fin 342 and the third heat dissipation fin 343 is not less than 1mm. Further, the second heat sink 342 and the third heat sink 343 may be provided with a slot, so that the antenna signal may be transmitted through the slot on the heat sinks.

In the present embodiment, the second heat sink 342 and the third heat sink 343 which are separately designed form a gap at a position corresponding to the antenna assembly, so that a signal of the antenna assembly can be transmitted through the gap, thereby reducing interference of the heat sinks on the antenna assembly, and the present embodiment has a simple structure, is easy to implement, and does not affect heat dissipation performance.

In one embodiment, the gap of the first heat sink 341 and the distance between the second heat sink 342 and the third heat sink 343 are greater than 1mm.

In this embodiment, the gap on the first heat sink 341 and the distance between the second heat sink 342 and the third heat sink 343 are designed to allow the signal of the antenna assembly to be transmitted, and if the gap is too small, the signal of the antenna assembly cannot be transmitted smoothly. In the present embodiment, the gap of the first heat sink 341 and the distance between the second heat sink 342 and the third heat sink 343 are set to be greater than 1mm, so that the signal of the antenna assembly can be smoothly transmitted. It is understood that the larger the gap on the first heat sink 341 or the spacing between the second heat sink 342 and the third heat sink 343, the less the heat sinks interfere with the antenna assembly. However, since the area of the heat dissipation plate is related to the heat dissipation performance, a certain area of the heat dissipation plate is required to achieve better heat dissipation performance. The gap of the first heat sink 341 or the distance between the second heat sink 342 and the third heat sink 343 may be adjusted according to actual requirements to achieve good signal transmission, and meanwhile, the heat sinks are ensured to have the area required for achieving the heat dissipation performance.

In one embodiment, the number of the second heat dissipation fins 342 and the third heat dissipation fins 343 is plural;

the second heat dissipation fins 342 are arranged outside the first cavity at intervals along a first direction of the side of the front case 310, and the third heat dissipation fins 343 are arranged outside the first cavity at intervals along a second direction of the side of the front case 310; wherein the first direction and the second direction are opposite.

In this embodiment, when the number of the antenna assembly is one, the plurality of second heat dissipation fins 342 and the plurality of third heat dissipation fins 343 are respectively disposed on two sides of the antenna assembly, so that the gap formed between the plurality of second heat dissipation fins 342 and the gap formed between the plurality of third heat dissipation fins 343 can also transmit signals of the antenna assembly, thereby improving the radiation performance of the antenna assembly in the electronic doorbell. When the number of antenna components is plural, the gap formed between the plurality of second heat radiating fins 342 or the gap formed between the plurality of third heat radiating fins 343 is provided corresponding to the plurality of antenna components.

In one embodiment, the heat dissipation assembly further comprises a fourth heat dissipation fin 344;

the fourth heat sink 344 is disposed outside the first cavity and away from the antenna assembly.

In this embodiment, the fourth heat dissipation fins 344 may be disposed opposite to the first heat dissipation fins 341. For smaller antenna assemblies, such as the second antenna 332, the signal of the antenna assembly may be transmitted by forming a slot in the heat sink or between multiple heat sinks. For a larger size line component, such as the first antenna 331, the width of the gap formed on the heat sink or between the heat sinks is limited, and signals of the antenna component cannot be efficiently transmitted. At this time, by disposing the heat sink away from the antenna assembly, for example, referring to fig. 5, the radiation surface of the first antenna 331 is disposed at the left side, and the fourth heat sink 344 is disposed at the right side, so that the signal transmission of the first antenna 331 is not blocked by the fourth heat sink 344. Compared with the common one-piece radiating fin which is fully paved on one side of the groove, the area of the fourth radiating fin 344 is reduced by half, the cost is reduced, the influence on the performance of the antenna assembly is reduced, and the radiating performance is not influenced.

In an embodiment, the first heat sink 341, the second heat sink 342, the third heat sink 343, and the fourth heat sink 344 are curved to fit the front case 310.

In this embodiment, the first heat sink 341, the second heat sink 342, the third heat sink 343, and the fourth heat sink 344 are designed as curved structures, which not only increases the area of the heat sink, but also can be fully attached to the front housing 310, so that the heat sink and the front housing 310 can be in face-to-face contact, thereby further improving the heat dissipation efficiency.

In one embodiment, the antenna assembly includes a first antenna 331;

the first antenna 331 is disposed away from the fourth heat sink;

the first antenna 331 is used for long-distance communication with the mobile terminal.

In this embodiment, the first antenna 331 may be an LoRa antenna or a Zigbee antenna. Bluetooth antennas or WiFi antennas for near field communication are generally large in size, and their radiation surfaces are also large. The radiation surface of the first antenna 331 is still mostly blocked by forming the slits between the heat sinks, and signals cannot be effectively transmitted through the slits. Therefore, the present embodiment ensures that the radiation surface of the first antenna 331 is not shielded by metal by disposing the first antenna 331 far away from the fourth heat dissipation plate, so that the electromagnetic wave can be smoothly transmitted/received.

In one embodiment, the antenna assembly includes a second antenna 332;

the second antenna 332 is disposed near a gap formed between the second and

third heat sinks

342 and 343 to transmit signals therethrough;

the second antenna 332 is used for near field communication with the mobile terminal.

In this embodiment, the second antenna 332 may be a bluetooth antenna or a WiFi antenna. Bluetooth antennas or WiFi antennas for near field communication are generally small in size, and their radiation surfaces are also small. In the present embodiment, a gap is formed between the second heat sink 342 and the third heat sink 343 to ensure that the radiation surface of the second antenna 332 is not shielded by metal, so that electromagnetic waves can be smoothly transmitted/received through the gap between the second heat sink 342 and the third heat sink 343.

The present invention also provides an antenna suitable for a first antenna 331, a second antenna 332, and a third antenna, the antenna comprising:

the first radiating portion 371;

a feeding portion 373 and a feeding portion 374, wherein the feeding portion 373 and the feeding portion 374 are respectively electrically connected to the first radiating portion 371, and are disposed at an included angle with the first radiating portion 371.

In this embodiment, the electronic doorbell further includes an electronic control board 320, a front shell 310 and a cover plate 350, and the cover plate 350 and the front shell 310 enclose to form an accommodating cavity for accommodating the antenna and the electronic control board 320. The antenna may be thermally fused to the front case 310 through the first radiation portion 371, and the electronic control board 320 is disposed on the cover plate 350 or the front case 310. When the cover plate 350 and the front case 310 are enclosed, the electric control board 320 abuts against the feeding portion 373 and the grounding portion 374, and a certain pressure is formed between the electric control board 320 and the feeding portion 373 and the grounding portion 374, so that the electric contact between the antenna and the electric control board 320 is more stable, and the frequency offset is avoided. Alternatively, the antenna is fixed to the electronic control board 320 by welding through the feeding portion 373 and the grounding portion 374, so that the antenna and the electronic control board 320 are not easily displaced.

The antenna can be any one of a LoRa antenna, a Bluetooth antenna, a WiFi antenna and a Zigbee antenna. The antenna is suitable for the structure of the present invention, and for different types of antennas with different frequency bands, the shape of the first radiating portion 371 can be adjusted to achieve corresponding performance. The electronic doorbell is communicated with the mobile terminal through the antenna of the invention, and receives the control signal of the mobile terminal or sends a data signal to the mobile terminal. For example, when a user performs an unlocking operation on the mobile terminal, the mobile terminal sends an unlocking control signal to an antenna of the electronic doorbell, the antenna converts the received unlocking signal into a corresponding electrical signal and sends the electrical signal to the electronic control board 320, and then the electronic control board 320 controls a corresponding functional circuit to unlock the door lock; when a person presses a doorbell, the electronic control board 320 outputs a corresponding electric signal to the antenna, the antenna converts the received electric signal into a corresponding visiting signal and sends the visiting signal to the mobile terminal, and therefore the user can receive the knocking information at the mobile terminal.

The feeding portion 373 and the grounding portion 374 are electrically connected to the feeding point and the grounding point of the electronic control board 320, respectively, and the first radiating portion 371 is disposed in parallel with the electronic control board 320. When transmitting a signal, the electronic control board 320 inputs a modulated high-frequency oscillation current to the antenna, generates an electric field and a magnetic field in the space around the first radiation portion 371, and converts the high-frequency oscillation current into a radio wave (free electromagnetic wave) to be radiated to the surrounding space. When receiving signals, the electromagnetic wave is radiated from the transmitting antenna and then propagates to all sides, and the first radiating portion 371 generates induced electromotive force under the action of the electromagnetic wave, converts the radio wave into high-frequency oscillation current, and outputs the high-frequency oscillation current to the electronic control board 320.

The feeding portion 373 and the ground feeding portion 374 are arranged at an included angle with the first radiating portion 371, and the distance between the first radiating portion 371 and the electric control board 320 is related to the lengths of the feeding portion 373 and the ground feeding portion 374. When the electronic control board 320 is disposed on the front housing, the side of the electronic control board 320 can be fixed to the side wall of the front housing 310, and the distance between the electronic control board 320 and the first radiation portion 371 can be adjusted by adjusting the height of the electronic control board 320 on the side wall of the front housing 310. When the distance between the electronic control board 320 and the first radiating section 371 increases, the lengths of the feeding section 373 and the grounding section 374 increase accordingly, that is, the height of the antenna increases. The height of the antenna can be adjusted by adjusting the lengths of the feeding portion 373 and the grounding portion 374 or the angle between the feeding portion 373 and the first radiating portion 371 according to the requirements of different products, so as to achieve better antenna performance. The first radiation part 371, the feed part 373 and the ground feed part 374 can be integrally formed, so that the proofing period is short, the debugging time and cost are saved, and the mass production of a production line is facilitated; or a plurality of conductive members may be connected.

The feeding portion, the ground feeding portion and the first radiation portion are arranged in an included angle mode, so that the plane space is not occupied, the occupied area of the antenna is reduced, the size of the antenna is further reduced, the mounting position of the antenna in a limited space is more flexible, the applicability is wider, and the antenna can be applied to other products with limited space besides the electronic doorbell. The feeding part and the ground feeding part are arranged at an included angle with the first radiation part, and the length of the feeding part and the ground feeding part is adjusted, so that the height of the antenna can be adjusted. The design of larger distance between the first radiation part and the electric control board is facilitated, and the performance of the antenna is further improved. The invention can be applied to the design of various antennas and electric control board heights.

In one embodiment, the antenna further comprises:

a second radiating part 372, the second radiating part 372 is connected with the first radiating part 371, the second radiating part 372 is arranged at an included angle with the first radiating part 371.

Generally, the larger the height and radiating area of the antenna, the better the performance of the antenna. Therefore, in practical applications, the height of the antenna is usually set as high as possible. The first radiating section 371 and the second radiating section 372 together constitute a radiating area of the antenna. Adjusting the length of the second radiating portion 372 changes the radiating area of the antenna, and the planar area of the first radiating portion 371 can be adaptively adjusted to compensate for the change of the radiating area caused by the height change of the second radiating portion 372, so that the radiating area of the antenna meets the performance requirement.

For example, the length of the second radiating portion 372 is increased, and the radiating area of the antenna is increased, and at this time, the plane area of the first radiating portion 371 may be decreased to keep the radiating area of the antenna constant; the length of the second radiating portion 372 is decreased and the radiating area of the antenna is decreased, and at this time, the plane area of the first radiating portion 371 may be increased to keep the radiating area of the antenna constant. In addition, the shape of the first radiating portion 371 may be adjusted according to practical applications to achieve a desired resonance point and radiation efficiency. For example, a slit is formed on the first radiating portion 371, or the first radiating portion 371 is provided in a step shape, etc., so as to change the distribution of the current on the first radiating portion 371, and further change the electromagnetic field of the first radiating portion, thereby realizing adjustment of the resonance point and the radiation efficiency.

When the antenna height is set as high as possible in the limited inner space of the product, the plane area of the first radiating portion 371 can be correspondingly reduced, and the occupied area of the antenna is reduced while the performance of the antenna is ensured.

This embodiment is through being the contained angle setting with second radiation portion 372 and first radiation portion 371, is the contained angle setting with second radiation portion 372 and first radiation portion 371, does not occupy the plane space, reduces the area occupied of antenna, and then reduces the size of antenna, makes its mounted position in finite space more nimble, and the suitability is wider, except that the electronic doorbell still can be applied to in the limited product in other spaces. In the invention, the second radiation part 372 and the first radiation part 371 form an included angle, and the length of the second radiation part is adjusted, so that the height of the antenna can be adjusted. The design of a larger distance between the first radiation part and the electric control board 320 is facilitated, and the performance of the antenna is further improved. The present invention can be applied to various designs of the height of the antenna and the electronic control board 320.

The first radiating section 371, the second radiating section 372, the feeding section 373, and the ground feeding section 374 are integrally formed.

In this embodiment, the first radiating part 371, the second radiating part 372, the feeding part 373, and the ground feeding part 374 are integrally formed, so that the proofing period is short, the debugging time and cost are saved, and the mass production of production lines is facilitated. Further, the first radiating section 371, the second radiating section 372, the feeding section 373, and the ground feeding section 374 may be integrally formed using one steel sheet. Compared with other metals, the steel sheet is easy to form and obtain, the cost is low, and the manufacturing process is simple during integral forming.

In an embodiment, the feeding portion 373 and/or the grounding portion 374 extend from an end of the second radiating portion 372 to a direction parallel to the first radiating portion 371.

In this embodiment, the feeding portion 373 and/or the grounding portion 374 extend from the end of the second radiating portion 372 in a direction parallel to the first radiating portion 371, form an included angle with the second radiating portion 372, and are not perpendicular to the second radiating portion 372. If the feeding portion 373 and/or the feeding portion 374 are perpendicular to the second radiating portion, the feeding portion 373 and/or the feeding portion 374 are in face-to-face contact when they are abutted against the electronic control board. Since the feeding portion 373 and/or the ground feeding portion 374 and the electronic control board are both hard objects, there may be gaps in surface-to-surface contact, which results in unstable electrical contact and thus unstable signal transmission. The feeding portion 373 and/or the grounding portion 374 are/is not perpendicular to the second radiating portion 372, so that the feeding portion 373 and/or the grounding portion 374 only need to be electrically connected to the feeding point and/or the grounding point on the electronic control board 320 through a part extending outwards. Further, one end of the feeding portion 373 and/or the feeding portion 374 extending outward may be bent to be a plane parallel to the first radiation portion, and is welded to the electronic control board 320 through the plane, so as to achieve a stable surface-to-surface electrical connection; or the feed portion 373 and/or the feed portion 374 may be provided with a protrusion at an end extending outward, and the protrusion may be electrically connected with the electronic control board 320 in a point-to-surface manner. In addition, the height of the antenna can be finely adjusted by adjusting the lengths of the feeding portion 373 and the grounding portion 374 or the included angle between the feeding portion 373 and the second radiating portion 372.

The feeding portion 373 and/or the grounding portion 374 are/is provided with a bending portion in a direction toward the first radiating portion 371.

In this embodiment, the feeding portion 373 and/or the feeding portion 374 are/is provided with a bent portion in a direction toward the first radiating portion 371, so as to form a protruding portion facing the electronic control board 320, and the protruding portion abuts against the electronic control board 320. Further, the bending portion may be a curved surface or a flat surface to make a contact with the electric control board 320 smoother.

In one embodiment, the bending portion is provided with a metal bump 275.

In this embodiment, the metal bump 275 is disposed on a surface of the bending portion facing the electronic control board 320, so as to achieve point-to-surface electrical contact with the electronic control board 320. It can be understood that the contact surfaces of the electric control board 320 and the bending portion are made of hard metal. The surface-to-surface contact between the hard metals cannot be completely attached, and a gap always exists, so that the electrical contact between the antenna and the electric control board 320 is unstable, and unnecessary energy loss is generated when an electrical signal is conducted.

In the embodiment, the metal bumps 275 are arranged at the bent part, so that more stable point-to-surface electrical contact between the metal bumps and the electronic control board 320 is realized, and the consistency of the antenna is improved.

In an embodiment, the feeding portion 373 and/or the grounding portion 374 are/is an elastic member.

In this embodiment, since the feeding portion 373 and the ground feeding portion 374 are at an included angle with the second radiating portion 372, and the included angle is not 90 °, the feeding portion 373 and/or the ground feeding portion 374 are/is configured as an elastic member, so that an active space is provided between the feeding portion 373 and the ground feeding portion 374 and the second radiating portion 372. When the feeding portion 373 and/or the grounding portion 374 abut against the electric control board 320, the feeding portion 373 and/or the grounding portion 374 are displaced downward by a certain angle under the pressure of the electric control board 320, and meanwhile, the self elastic force also generates a reaction force on the electric control board 320, so that a certain static friction force is provided between the feeding portion 373 and/or the grounding portion 374 and the electric control board 320, the displacement is not easily generated, and the contact is more stable. The front-back distance and the height of the feeding portion 373 and/or the feeding portion 374 can be adjusted according to actual requirements, so as to achieve the required elasticity.

In one embodiment, the first radiating portion 371 and the second radiating portion 372 form an included angle of 90 °.

In this embodiment, when the electronic control board 320 abuts against the feeding portion 373 and/or the ground feeding portion 374, the feeding portion 373 and/or the ground feeding portion 374 are displaced, so that the feeding portion 373 and/or the ground feeding portion 374 generate a pressure on the second radiation portion 372. Since the feeding portion 373 and/or the ground feeding portion 374 have an included angle different from 90 ° with the second radiation portion 372, the pressure F of the feeding portion 373 and/or the ground feeding portion 374 on the second radiation portion 372 can be decomposed into a component F1 in the vertical direction and a component F2 in the horizontal direction, wherein the horizontal direction is parallel to the first radiation portion 371. If the first radiating portion 371 and the second radiating portion 372 are not disposed at an angle of 90 °, they will be displaced toward the first radiating portion by the component F1 in the vertical direction, so as to reduce the height of the antenna. Further, the height of the second radiation portion 372 is not less than 6mm. If the height of the second radiation portion is too low, the radiation performance of the antenna is affected. In practical applications, the area of the first radiating portion may be adaptively adjusted to set the height of the second radiating portion 372 higher.

In this embodiment, the first radiating section 371 and the second radiating section 372 are vertically disposed, so that a component F1 of the feeding section 373 and/or the grounding section 374 to the second radiating section 372 in the vertical direction can be cancelled, the second radiating section 372 is prevented from being displaced in the vertical direction, and the antenna performance is ensured to be stable. Meanwhile, the first radiating part 371 and the second radiating part 372 are vertically arranged, and the height change of the second radiating part 372 is the same as that of the antenna, so that the height of the antenna can be adjusted more directly.

In one embodiment, the antenna further comprises:

fixing portion 376, fixing portion 376 set up in the both sides of second radiation portion 372, and with first radiation portion 371 and second radiation portion 372 are the contained angle setting, fixing portion 376 is used for with the antenna is fixed in on the installed object.

The pressure of the feeding portion 373 and/or the feeding portion 374 to the second radiation portion 372 generates a horizontal component, so that the second radiation portion 372 is displaced in the horizontal direction, and the contact point of the feeding portion 373 and/or the feeding portion 374 is displaced. In this embodiment, the two sides of the second radiation portion 372 are provided with the fixing portions 376 arranged at the included angles with the first radiation portion 371 and the second radiation portion 372, so that the position of the second radiation portion 372 in the horizontal direction is fixed, and the electric contact between the antenna and the electric control board 320 is prevented from being influenced by the displacement. The angle between the fixing portion 376 and the first and second radiating

portions

371 and 372 may be 60 °, 90 °, or 120 °, which is not limited herein. Specifically, the fixing portion 376 may be a solid plane with a limiting hole, and a positioning post on the object to be mounted penetrates through the limiting hole to fix the position of the object to be mounted; alternatively, the fastening portion 376 may be provided in an L-shape, as shown in fig. 1. One end of the fixing portion 376 is bent at 90 °, a positioning hole 377 is formed in the bent portion, and a positioning post on the object to be mounted penetrates through the positioning hole 377 to fix the position of the object to be mounted. The fixing portion 376 may be bent toward the feeding portion 373 and/or the ground feeding portion 374, or may be bent toward the feeding portion 373 and/or the ground feeding portion 374, and an end of the fixing portion 376 bent may be an end close to the feeding portion 373 and/or the ground feeding portion 374, or an end close to the first radiating portion 371. The fixing portion 376 may be integrally formed with the first radiating portion 371, the second radiating portion 372, the feeding portion 373, and the feeding portion 374, or may be separately fixed to the second radiating portion 372.

The present invention also provides an antenna assembly, comprising:

the above-mentioned antenna;

the antenna bracket is provided with a positioning column;

the fixing portion of the antenna is provided with a positioning hole 377, and the positioning column penetrates through the positioning hole 377 in the fixing portion of the antenna.

In this embodiment, the antenna holder includes the base that is flat setting to make the second radiating part 372 of antenna can laminate, thereby play the effect of rigidity and support to the antenna. The position of the positioning column corresponding to the positioning hole 377 of the antenna is arranged on the surface of the base, and the number of the positioning columns is multiple.

The detailed structure of the antenna component can refer to the above embodiments, and is not described again; it can be understood that, since the antenna is used in the antenna assembly of the present invention, the embodiment of the antenna assembly of the present invention includes all technical solutions of all embodiments of the antenna, and the achieved technical effects are also completely the same, and are not described herein again.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An electronic doorbell, characterized in that the electronic doorbell comprises:

a front housing;

the electric control board is provided with a feed point;

2. The electronic doorbell of claim 1, further comprising:

the cover plate and the front shell enclose to form a first cavity, and the electric control plate, the antenna assembly and the heat dissipation assembly are contained in the first cavity;

3. The electronic doorbell of claim 2 wherein the front housing has a mounting portion to which the antenna assembly is mounted;

4. The electronic doorbell of claim 3, further comprising:

5. The electronic doorbell of claim 4, wherein the heat sink assembly comprises:

6. The electronic doorbell of claim 4, wherein the heat sink assembly comprises:

7. The electronic doorbell of claim 6 wherein the second heat sink and the third heat sink are each plural in number;

8. The electronic doorbell of claim 4 wherein the heat sink assembly further comprises a fourth heat sink;

9. The electronic doorbell of claim 8 wherein the antenna assembly comprises a first antenna;

the first antenna is arranged far away from the fourth heat dissipation sheet;

the first antenna is used for remote communication with the mobile terminal.

10. The electronic doorbell of claim 6 wherein the antenna assembly comprises a second antenna;