CN115347366A

CN115347366A - Electronic door bell

Info

Publication number: CN115347366A
Application number: CN202211059743.7A
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 carrier, a first antenna and a second antenna. A first antenna is secured to the carrier. The second antenna is spaced apart from the first antenna and disposed on the carrier. 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.

Description

Electronic door bell

Technical Field

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

Background

In order to meet the requirements of users, the functions of the electronic doorbell are increasingly diversified. Besides the functions of traditional real-time visitor reminding, video talkback, music doorbell and the like, the intelligent visitor monitoring system also has the functions of AI face recognition, abnormal motion monitoring, night vision, sound changing and the like. When the user is not at home, someone presses the doorbell, the knock information is received on the mobile phone, and the householder can check the visitor through the mobile phone, talk with the visitor and control the opening of the door lock. Thus, even if the host is not at home, the visiting guest can not wait outside the door. When the owner can not open the door when busy, the door can be opened by the control of the mobile phone without getting up to walk near the door.

The above functions are realized by communicating with the mobile terminal through an antenna. The doorbell usually uses a bluetooth/WiFi antenna, but the bluetooth/WiFi antenna has a short communication distance, and when the distance between the mobile phone of the user and the doorbell is a little far away, the doorbell may not be communicated with, and thus the functions of checking visitors through the mobile phone, talking with the visitors, controlling the door lock to open and the like cannot be realized.

Disclosure of Invention

The invention mainly aims to provide an electronic doorbell, aiming at realizing better signal transmission of the electronic doorbell.

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

a carrier;

a first antenna fixed to the carrier;

and the second antenna and the first antenna are arranged on the carrier at intervals, and the communication distance of the second antenna is smaller than that of the first antenna.

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

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

In one embodiment, the electronic doorbell further comprises a front shell and an electronic control board, and the carrier is the front shell or the electronic control board;

the first antenna and the second antenna are both arranged on the front shell;

or the first antenna and the second antenna are both arranged on the electric control board;

or, the first antenna and the second antenna are respectively provided with the front shell and the electric control board.

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

the cover plate and the front shell form a closed cavity, and the first antenna, the second antenna and the electric control plate are arranged in the closed cavity.

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

the doorbell button is arranged on the front shell, and the first antenna and the second antenna are respectively arranged on two sides of the doorbell button.

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

the minimum distance between the third antenna and the first antenna and the minimum distance between the third antenna and the second antenna are not less than 20mm.

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

In one embodiment, the electric control board is disposed on the cover plate and abuts against the first antenna, the second antenna and the third antenna;

or, the electric control board is arranged on the front shell, and the first antenna, the second antenna and the third antenna are arranged on the electric control board.

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

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.

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 electronic doorbell in accordance with an embodiment of 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)
				110	Front shell	120	Electric control board
131	First antenna	132	Second antenna
				141	The first heat sink	142	Second heat sink
143	Third heat sink	144	The fourth heat dissipation sheet
				150	Cover plate	160	Waterproof ring
171	A first radiation part	172	A second radiation part
				173	Power feeding unit	174	Ground feeding part
175	Metal salient point	176	Fixing part
				177	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 directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions relating to "first", "second", etc. in the present invention are used 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 131 fixed to the carrier;

and a second antenna 132 disposed on the carrier at an interval from the first antenna 131, wherein a communication distance of the second antenna 132 is smaller than a communication distance of the first antenna 131.

In the existing electronic doorbell, a bluetooth antenna or a WiFi antenna is generally used 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 131 is used for long distance communication and the second antenna 132 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 131 and the second antenna 132 are disposed at an interval to achieve spatial isolation, so as to reduce mutual interference between the two antennas.

The first antenna 131 may be a LoRa antenna, and the second antenna 132 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 tree 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 and can simultaneously maintain a connection with the network. In this embodiment, constitute the wireless communication module through adopting loRa antenna and bluetooth/wiFi antenna biantenna. Bluetooth/WiFi antenna has solved the short distance connection problem of low-power consumption, and the long-range connection problem of low-power consumption has been solved to the LoRa antenna, makes electronic doorbell can realize the communication of longer distance and lower power consumption.

Alternatively, the first antenna 131 and the second antenna 132 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 110, the front shell 110 forming a receiving cavity for receiving the first antenna 131 and the second antenna 132. Due to the limited inner space of the accommodating cavity, in addition to the first antenna 131 and the second antenna 132, a camera, a speaker, a display screen, the electronic control board 120 and the like are placed. The placement of the first antenna 131 and the second antenna 132 also needs to be considered in a limited space, so as to achieve a better isolation and avoid the two antennas interfering with each other. In the present embodiment, the first antenna 131 and the second antenna 132 are disposed at an interval, for example, the first antenna 131 and the second antenna 132 are symmetrically disposed on the same side of the front housing 110; alternatively, the first antenna 131 and the second antenna 132 are symmetrically disposed on two opposite sides of the front housing 110; alternatively, the first antenna 131 and the second antenna 132 are disposed at two opposite corners of the front case 110, so that a certain space is maintained between the first antenna 131 and the second antenna 132, thereby achieving spatial isolation. Wherein the spacing between the first antenna 131 and the second antenna 132 is not less than 20mm.

In one embodiment, the minimum distance s between the first antenna 131 and the second antenna 132 is not less than 20mm.

Referring to fig. 2, in general, the greater the minimum distance s between the first antenna 131 and the second antenna 132, the better the isolation. However, the electronic doorbell has a limited size, and if the distance between the first antenna 131 and the second antenna 132 is too small, the antennas will interfere with each other, and the communication with the mobile terminal will be affected. The minimum distance s between the first antenna 131 and the second antenna 132, which are disposed in a limited space, is set to be not less than 20mm, so that the minimum isolation requirement can be satisfied.

In an embodiment, the first antenna 131 is a LoRa antenna, and the second antenna 132 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 110 and an electronic control board 120, and the carrier is the front shell 110 or the electronic control board 120;

the first antenna 131 and the second antenna 132 are both disposed on the front housing 110;

alternatively, the first antenna 131 and the second antenna 132 are both disposed on the electronic control board 120;

alternatively, the first antenna 131 and the second antenna 132 are respectively disposed on the front case 110 and the electronic control board 120.

In this embodiment, the electric control board 120 is provided with a first feeding point and a second feeding point, the first antenna 131 and the second antenna 132 are fixed on the front shell 110 by hot melting, and the electric control board is disposed above the first antenna 131 and the second antenna 132, so that the first feeding point and the second feeding point of the electric control board 120 are respectively abutted to the first antenna 131 and the second antenna 132. Therefore, the structures of the first antenna 131 and the second antenna 132 are more stable, the contact between the electronic control board 120 and the first antenna 131 and the second antenna 132 is more reliable, no frequency deviation occurs, and the stability of signal transmission is improved.

Or, the first antenna 131 and the second antenna 132 are both welded on the electronic control board 120, so that the first antenna 131 and the second antenna 132 are respectively fixed with the first feeding point and the second feeding point of the electronic control board 120, 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 131 and the second antenna 132 are separately provided to the front case 110 and the electronic control board 120. For example, the first antenna 131 is disposed on the front case 110, and the second antenna 132 is disposed on the electric control board 120; alternatively, the first antenna 131 is disposed on the electronic control board 120, and the second antenna 132 is disposed on the front housing 110. Thus, compared with the case that the two antennas are arranged on the front shell at the same time, the area of the front shell occupied by the two antennas is reduced. Meanwhile, the first antenna 131 and the second antenna 132 may avoid the electronic devices inside the electronic doorbell and are disposed at positions more favorable for signal transmission. For example, the first antenna is disposed on the electronic control board and the second antenna is disposed near the front case edge and away from the electronic device. 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 150;

the cover plate 150 and the front case 110 form a sealed cavity, and the first antenna 131, the second antenna 132 and the electric control board 120 are disposed in the sealed cavity.

In this embodiment, the cover plate 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 apron can also select for use the plastics material.

The cover plate 150 and the front housing 110 form a sealed cavity, and the first antenna 131, the second antenna 132 and the electronic control board 120 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 131, the second antenna 132 and the electronic control board 120 are protected. And can mitigate the effects of temperature changes, humidity changes, weather, etc. on the first antenna 131, the second antenna 132, and the electronic control board 120.

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

the doorbell button is located on the preceding shell, first antenna 131 with second antenna 132 is located separately the both sides of doorbell button.

In this embodiment, the first antenna 131 and the second antenna 132 are respectively disposed on two sides of the doorbell button to realize a space 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 in order to improve the anti-theft and fireproof performances, the existing door plate is usually made of metal. In addition, the cover plate 150 may be made of metal. It will be appreciated that the metal has a coupling effect on 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 150 to the LoRa antenna and the Bluetooth/Wifi antenna is the same, namely the degree of the cover plate 150 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 150 is different to loRa antenna and bluetooth Wifi antenna, the interference between loRa antenna and the bluetooth Wifi antenna is great.

In this embodiment, when the cover plate 150 is a regular pattern such as a rectangle, a diamond, a circle, etc., the first antenna 131 and the second antenna 132 are respectively disposed on two sides of the central axis of the cover plate 150, so that the minimum distances between the first antenna 131 and the central point of the cover plate 150 are equal to the minimum distances between the second antenna 132 and the central point of the cover plate. The distances between the cover plate 150 and the metal door panel around the electronic doorbell and the distances between the first antenna 131 and the second antenna 132 are axisymmetric or centrosymmetric, so that the total energy of the cover plate 150 and the metal door panel around the electronic doorbell for absorbing the electromagnetic waves transmitted/received by the first antenna 131 and the second antenna 132 is the same, namely the coupling degrees of the cover plate 150 and the metal door panel around the electronic doorbell to the first antenna 131 and the second antenna 132 are the same, the coupling difference between the first antenna 131 and the second antenna 132 is reduced, the interference between the first antenna 131 and the second antenna 132 is 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 110 or the electric control board 120, and the minimum distance between the third antenna and the first antenna 131 and the minimum distance between the third antenna and the second antenna 132 are 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 110 to ensure a distance as far as possible from the first antenna 131 and the second antenna 132. In order to avoid mutual interference between the antennas, the distance between the third antenna and the first antenna 131 and the second antenna 132 is set to be not less than 20mm in the present embodiment, so as to achieve better isolation.

In this embodiment, the electric control board 120 is further provided with a third feeding point, and the third antenna may be disposed on the front shell 110 and abut against the electric control board 120 disposed on the cover plate 150. Alternatively, the third antenna may be soldered to the third feeding point on the electronic control board 120.

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 120 is disposed on the cover plate 150 and abuts against the first antenna 131, the second antenna 132 and the third antenna;

alternatively, the electronic control board 120 is disposed on the front housing 110, and the first antenna 131, the second antenna 132 and the third antenna are mounted on the electronic control board 120.

In this embodiment, the electric control board 120 is disposed on the cover plate 150, and the first antenna 131, the second antenna 132 and the third antenna are fixed on the front housing 110 by thermal melting, so that the position of the antenna is stable, and the uniformity of the antenna is not affected by the displacement. When the cover plate 150 is enclosed by the front case 110, the electric control board 120 abuts against the first antenna 131, the second antenna 132 and the third antenna, so that the feeding point on the electric control board 120 is more reliably contacted with the first antenna 131, the second antenna 132 and the third antenna, thereby avoiding the adverse effect of the antenna and the feeding point contacting.

Or, the electric control board 120 is disposed on the front case 110, and the first antenna 131, the second antenna 132 and the third antenna are respectively welded to the feeding points on the electric control board 120, so that the contact areas between the first antenna 131 and the electric control board 120 and the second antenna 132 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 110 at a position close to the electronic control board 120.

It is understood that the antenna inside the electronic doorbell, the circuitry on the electronic control board 120, and other electronic devices may generate heat during operation, which may raise the temperature inside the enclosed cavity. 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 airtight cavity to the casing, during rethread casing conduction reaches the outside air, realizes the radiating effect.

The invention provides another electronic doorbell, which comprises:

a front case 110;

an electric control board 120 provided with a feeding point;

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

and the heat dissipation assembly is arranged on the 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 120 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 120 may be fixed on the front case 110, and the antenna assembly is mounted on the electronic control board 120; alternatively, the antenna assembly is fixed to the front case 110 by heat fusion, and the electronic control board 120 is disposed above and in contact with the antenna assembly. Further, the electronic control board 120 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 arranged at intervals along the inner wall of the front shell 110, 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 110, and the electronic devices and the functional circuit arranged on the electric control board 120 can generate heat during working to enable the temperature of the middle area of the accommodating cavity to rise. The electric control board 120 has a plurality of functional circuits, and generates a large amount of heat during operation, so that the temperature of the electric control board 120 is rapidly increased. The heat dissipation assembly is arranged close to the electric control board 120, conducts heat on the electric control board 120 to the periphery and conducts the heat to the outside of the accommodating cavity through the wall of the front shell 110, so that the temperature in the accommodating cavity is reduced, and the heat dissipation effect is realized.

In the embodiment, 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, the interference of the radiating component on the antenna component is reduced, and the radiation performance of the antenna component in the 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. Meanwhile, the heat dissipation performance cannot be influenced.

In one embodiment, the electronic doorbell further comprises:

a cover plate 150, wherein the cover plate 150 and the front housing 110 enclose to form a first cavity, and the electronic control board 120, the antenna assembly and the heat dissipation assembly are accommodated in the first cavity;

the electric control board 120 is arranged on the cover plate and is abutted with the antenna assembly;

alternatively, the electronic control board 120 is disposed on the housing, and the antenna assembly is mounted on the electronic control board 120.

In this embodiment, the cover plate 150 and the front housing 110 enclose to form a first cavity, and the electronic control board 120, the antenna assembly and the heat dissipation assembly are accommodated in the first cavity, so as to achieve the dustproof and/or waterproof effect, and reduce the influence of the external environment on the electronic control board 120, the antenna assembly and the heat dissipation assembly.

In one embodiment, the front housing 110 has a mounting portion to which the antenna assembly is mounted.

The installation department with apron 150 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 150 enclose, a second cavity is formed in the first cavity, and the electronic control board 120 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 110 and apron is got up electronic components such as automatically controlled board 120, 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, so as to conduct heat in the second cavity to the first cavity, and conduct heat out of the first cavity through the front housing 110 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 inside the first cavity can also be used for arranging parts such as an installation column and a limiting column so as to be fixed with the cover plate, so that the positions of the parts such as the installation column and the limiting column are prevented from being additionally reserved in the installation part, and the layout positions of the electric control board 120, the antenna assembly and the electronic device are limited.

This embodiment encloses through apron 150 and preceding shell 110 and closes to form first way sealedly, and apron 150 and installation department enclose to close to form the second way sealedly and realize double sealing, have better sealed effect. In addition, in order to ensure the aesthetic appearance of the electronic doorbell, the sealing between the cover plate 150 and the mounting portion may be enhanced, and the sealing between the cover plate 150 and the front case 110 may be simply performed.

In one embodiment, the electronic doorbell further comprises:

and the sealing ring 360 is fixed on the 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 electric control board 120 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 110, respectively, to conduct heat in the second cavity to the second cavity, and to conduct heat to the outside of the first cavity through the front shell 110 having 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 housing 110, 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 110 to make it contact with sealing washer 360 and preceding shell 110 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 the rethread radiator unit conducts preceding shell 110 and the air, in the air outside shell 110 before finally conducted by the preceding shell 110 of bigger area, 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 110. The heat-conducting 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 contact surfaces. With the supplement of the heat-conducting silica gel, the heat-radiating component can be in full contact with the sealing ring 360 and the front shell 110, so that the temperature difference is as small as possible and the heat is quickly radiated.

Still be equipped with a plurality of reference columns and a plurality of screw post on the recess. The plurality of positioning columns are arranged on the groove at intervals corresponding to the positions of the heat dissipation assemblies, a plurality of positioning holes 177 are further formed in the positions, corresponding to the positioning columns, of the heat dissipation assemblies, the positioning columns penetrate through the positioning holes 177 to fix the heat dissipation assemblies on the groove, and therefore the heat dissipation assemblies are prevented from being displaced and affecting the heat dissipation effect. The plurality of studs are arranged on the grooves at positions avoiding the heat dissipation assembly, and the studs are used for being fixedly connected with the cover plate 150. The studs may be disposed in the gaps of the heat sink, and the gaps of the heat sink correspond to the space on the front housing 110, and the performance of the antenna assembly is not affected.

This embodiment sets up the recess that forms between the side of installation department and preceding shell 110 through with radiator unit in to the heat that produces when effectively conducting installation department internal antenna subassembly and other electronic components work. 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 110 to be fixedly connected with the cover plate 150, the space occupied by the installation part is not required to be provided with the screw column, 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:

and the first radiating fins 141 are arranged outside the first cavity, gaps are formed in the radiating fins, and the number and the positions of the gaps correspond to those of 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:

the second heat sink 142 and the third heat sink 143 are arranged outside the first cavity at an interval, and a gap formed between the second heat sink 142 and the third heat sink 143 corresponds to the antenna assembly.

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

heat dissipation fins

142 and 143 which are separately designed. A slot formed between the second and third

heat radiating fins

142 and 143 corresponds to the antenna assembly so that a signal of the antenna assembly can be transmitted through the slot. Wherein, the distance between the second cooling fin 142 and the third cooling fin 143 is not less than 1mm. Further, the second heat sink 142 and the third heat sink 143 may be further provided with a slot, so that the antenna signal may be transmitted through the slot on the heat sink.

In the embodiment, the second heat sink 142 and the third heat sink 143 which are separately designed form a gap at a position corresponding to the antenna assembly, so that signals of the antenna assembly can be transmitted through the gap, interference of the heat sinks on the antenna assembly is reduced, the structure is simple, the implementation is easy, and the heat dissipation performance is not affected.

In one embodiment, the gap of the first heat sink 141 and the distance between the second heat sink 142 and the third heat sink 143 are greater than 1mm.

In this embodiment, the gap on the first heat sink 141 and the distance between the second heat sink 142 and the third heat sink 143 are for enabling the signal transmission of the antenna assembly, and if the gap is too small, the signal transmission of the antenna assembly is not smooth. In the present embodiment, the gap of the first heat sink 141 and the distance between the second heat sink 142 and the third heat sink 143 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 141 or the spacing between the second heat sink 142 and the third heat sink 143, 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 on the first heat sink 141 or the distance between the second heat sink 142 and the third heat sink 143 can be adjusted according to actual requirements, so as to achieve good signal transmission, and ensure that the heat sinks have the area required for achieving the heat dissipation performance.

In one embodiment, the number of the second heat dissipation fins 142 and the third heat dissipation fins 143 is multiple;

the second heat dissipation fins 142 are arranged outside the first cavity at intervals along a first direction of the side of the front housing 110, and the third heat dissipation fins 143 are arranged outside the first cavity at intervals along a second direction of the side of the front housing 110; wherein the first direction and the second direction are opposite.

In this embodiment, when the number of the antenna assembly is one, the second heat sinks 142 and the third heat sinks 143 are respectively disposed on two sides of the antenna assembly, so that the gap formed between the second heat sinks 142 and the gap formed between the third heat sinks 143 can also transmit the signal 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 radiation fins 142 or the gap formed between the plurality of third heat radiation fins 143 is provided corresponding to the plurality of antenna components.

In one embodiment, the heat dissipation assembly further includes a fourth heat dissipation sheet 144;

the fourth heat sink 144 is disposed outside the first cavity and away from the antenna assembly.

In this embodiment, the fourth heat dissipation fin 144 may be disposed opposite to the first heat dissipation fin 141. For smaller antenna assemblies, such as the second antenna 132, the signals of the antenna assembly may be transmitted by forming a slot in or between the heat sinks. For a larger size line component, such as the first antenna 131, the width of the gap formed on the heat sink or between the heat sinks is limited, and the signal of the antenna component cannot be transmitted efficiently. 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 131 is disposed at the left side, and the fourth heat sink 144 is disposed at the right side, so that the signal transmission of the first antenna 131 is not blocked by the fourth heat sink 144. 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 144 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 141, the second heat sink 142, the third heat sink 143, and the fourth heat sink 144 are curved to fit the front case 110.

In this embodiment, the first heat sink 141, the second heat sink 142, the third heat sink 143, and the fourth heat sink 144 are designed to be curved structures, which not only can increase the area of the heat sink, but also can be fully attached to the front housing 110, so that the heat sink and the front housing 110 can be in face-to-face contact, thereby further improving the heat dissipation efficiency.

In one embodiment, the antenna assembly includes a first antenna 131;

the first antenna 131 is arranged far away from the fourth heat dissipation plate;

the first antenna 131 is used for long-distance communication with the mobile terminal.

In this embodiment, the first antenna 131 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 131 is still mostly blocked by forming the gap between the heat sinks, and signals cannot be effectively transmitted through the gap. Therefore, the present embodiment ensures that the radiation surface of the first antenna 131 is not shielded by metal by disposing the first antenna 131 far 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 132;

the second antenna 132 is disposed near a gap formed between the second and

third heat sinks

142 and 143 to transmit a signal therethrough;

the second antenna 132 is used for close range communication with the mobile terminal.

In this embodiment, the second antenna 132 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. The present embodiment ensures that the radiation surface of the second antenna 132 is not shielded by metal by forming a gap between the second heat sink 142 and the third heat sink 143, so that electromagnetic waves can be smoothly transmitted/received through the gap between the second heat sink 142 and the third heat sink 143.

The present invention also provides an antenna suitable for a first antenna 131, a second antenna 132 and a third antenna, the antenna comprising:

a first radiation section 171;

a feeding portion 173 and a ground feeding portion 174, wherein the feeding portion 173 and the ground feeding portion 174 are electrically connected to the first radiating portion 171 respectively, and are disposed at an included angle with the first radiating portion 171.

In this embodiment, the electronic doorbell further includes an electronic control board 120, a front shell 110 and a cover plate 150, and the cover plate 150 and the front shell 110 enclose to form an accommodating cavity for accommodating the antenna and the electronic control board 120. The antenna may be fixed to the front case 110 by the first radiation part 171 through heat fusion, and the electronic control board 120 is disposed on the cover plate 150 or the front case 110. When the cover plate 150 and the front case 110 are enclosed, the electronic control board 120 abuts against the feeding portion 173 and the ground feeding portion 174, and a certain pressure is formed between the electronic control board 120 and the feeding portion 173 and the ground feeding portion 174, so that the electrical contact between the antenna and the electronic control board 120 is more stable, and the frequency offset is avoided. Alternatively, the antenna is fixed to the electronic control board 120 by welding through the feeding portion 173 and the grounding portion 174, so that the antenna and the electronic control board 120 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 structure of the present invention is applicable to the above-mentioned antennas, and for the antennas with different types and different frequency bands, the shape of the first radiation portion 171 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 120, and then the electronic control board 120 controls a corresponding functional circuit to unlock the door lock; when a person presses a doorbell, the electric control board 120 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 173 and the ground feeding portion 174 are electrically connected to a feeding point and a ground feeding point on the electronic control board 120, respectively, and the first radiation portion 171 is disposed parallel to the electronic control board 120. When transmitting a signal, the electronic control board 120 inputs a modulated high-frequency oscillation current to the antenna, generates an electric field and a magnetic field in the surrounding space of the first radiation portion 171, and converts the high-frequency oscillation current into a radio wave (free electromagnetic wave) to be radiated to the surrounding space. When receiving a signal, the electromagnetic wave is radiated from the transmitting antenna and then propagates to all sides, and the first radiation portion 171 generates induced electromotive force under the action of the electromagnetic wave, converts the radio wave into a high-frequency oscillation current, and outputs the high-frequency oscillation current to the electronic control board 120.

The feeding portion 173 and the ground feeding portion 174 are arranged at an included angle with the first radiation portion 171, and the distance between the first radiation portion 171 and the electric control board 120 is related to the lengths of the feeding portion 173 and the ground feeding portion 174. When the electric control board 120 is disposed on the front housing, the side of the electric control board 120 may be fixed to the side wall of the front housing 110, and the distance between the electric control board 120 and the first radiation portion 171 may be adjusted by adjusting the height of the electric control board 120 on the side wall of the front housing 110. When the distance between the electronic control board 120 and the first radiating portion 171 increases, the lengths of the feeding portion 173 and the ground feeding portion 174, that is, the height of the antenna, increase accordingly. The height of the antenna can be adjusted by adjusting the lengths of the feeding portion 173 and the grounding portion 174 or the angle between the feeding portion and the first radiating portion 171 according to the requirements of different products, so as to achieve better antenna performance. The first radiation part 171, the feed part 173 and the ground feed part 174 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. According to the invention, the feeding part, the ground feeding part and the first radiation part are arranged in an included angle, and the length of the feeding part and the ground feeding part is adjusted, so that the adjustment of the height of the antenna can be realized. 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:

and the second radiation part 172, the second radiation part 172 is connected with the first radiation part 171, and the second radiation part 172 and the first radiation part 171 are arranged at an included angle.

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 radiation portion 171 and the second radiation portion 172 together constitute a radiation area of the antenna. The adjustment of the length of the second radiation portion 172 changes the radiation area of the antenna, and the planar area of the first radiation portion 171 can be adaptively adjusted to compensate for the change of the radiation area caused by the height change of the second radiation portion 172, so that the radiation area of the antenna meets the performance requirement.

For example, the length of the second radiation portion 172 is increased, and the radiation area of the antenna is increased, and at this time, the plane area of the first radiation portion 171 may be decreased to keep the radiation area of the antenna constant; the length of the second radiation portion 172 is reduced and the radiation area of the antenna is reduced, and at this time, the plane area of the first radiation portion 171 may be increased to keep the radiation area of the antenna constant. In addition, the shape of the first radiation portion 171 may be adjusted according to practical applications to achieve a desired resonance point and radiation efficiency. For example, a slot is formed in the first radiation portion 171, or the first radiation portion 171 is provided in a step shape, etc., so as to change the distribution of the current on the first radiation portion 171, and further change the electromagnetic field of the first radiation 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 radiation portion 171 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 172 and first radiation portion 171, is the contained angle setting with second radiation portion 172 and first radiation portion 171, 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. According to the invention, the second radiation part 172 and the first radiation part 171 are arranged in 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 120 is facilitated, and the performance of the antenna is further improved. The present invention can be applied to various designs of the antenna and height of the electronic control board 120.

The first radiation portion 171, the second radiation portion 172, the power feed portion 173, and the ground feed portion 174 are integrally formed.

In this embodiment, the first radiation portion 171, the second radiation portion 172, the feeding portion 173 and the ground feeding portion 174 are 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. Further, the first radiation portion 171, the second radiation portion 172, the feeding portion 173, and the ground feeding portion 174 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 173 and/or the ground feeding portion 174 extends from the end of the second radiation portion 172 to a direction parallel to the first radiation portion 171.

In this embodiment, the feeding portion 173 and/or the ground feeding portion 174 extends from the end of the second radiation portion 172 to a direction parallel to the first radiation portion 171, forms an included angle with the second radiation portion 172, and is not perpendicular to the second radiation portion 172. If the feeding portion 173 and/or the feeding ground portion 174 is perpendicular to the second radiating portion, the feeding portion 173 and/or the feeding ground portion 174 is in face-to-face contact when the feeding portion 173 and/or the feeding ground portion 174 abuts against the electronic control board. Since the feeding portion 173 and/or the ground feeding portion 174 and the electronic control board are hard objects, there may be gaps in surface-to-surface contact, which results in unstable electrical contact and thus unstable signal transmission. The present embodiment arranges the feeding portion 173 and/or the ground feeding portion 174 not to be perpendicular to the second radiation portion 172, so that the feeding portion 173 and/or the ground feeding portion 174 only need to be electrically connected to the feeding point and/or the ground feeding point on the electronic control board 120 through a portion extending outward. Further, one end of the feeding portion 173 and/or the feeding portion 174 extending outward may be bent to be a plane parallel to the first radiation portion, and is welded to the electric control board 120 through the plane, so as to achieve a stable surface-to-surface electrical connection; alternatively, a protrusion may be provided on one end of the feeding portion 173 and/or the feeding ground portion 174 extending outward, and the protrusion may be used to electrically connect with the electronic control board 120 in a point-to-point manner. In addition, the height of the antenna can be finely adjusted by adjusting the lengths of the feeding portion 173 and the feeding portion 174 or the included angle between the feeding portion and the second radiating portion 172.

The feeding portion 173 and/or the ground feeding portion 174 is provided with a bent portion toward the first radiation portion 171.

In this embodiment, the feeding portion 173 and/or the ground feeding portion 174 is provided with a bent portion in a direction toward the first radiation portion 171 to form a convex portion facing the electronic control board 120, and is abutted against the electronic control board 120 by the convex portion. Further, the bent portion may be a curved surface or a flat surface to make a contact with the electric control board 120 smoother.

In one embodiment, the bending portion is provided with a metal bump 175.

In this embodiment, a metal bump 175 is disposed on a surface of the bending portion facing the electronic control board 120 to make point-to-surface electrical contact with the electronic control board 120. It can be understood that the contact surfaces of the electric control board 120 and the bending part are all made of hard metal. The surface-to-surface contact between the hard metals cannot be completely attached, and a gap exists all the time, so that the electrical contact between the antenna and the electric control board 120 is unstable, and unnecessary energy loss is generated when an electrical signal is conducted.

In the embodiment, the metal bumps 175 are arranged at the bending part, so that more stable point-to-surface electrical contact with the electric control board 120 is realized, and the consistency of the antenna is improved.

In an embodiment, the feeding portion 173 and/or the grounding portion 174 is an elastic member.

In this embodiment, since the feeding portion 173 and the ground feeding portion 174 are at an angle different from 90 ° with respect to the second radiating portion 172, the feeding portion 173 and/or the ground feeding portion 174 are provided as elastic members, so that an active space is provided between the feeding portion 173 and the ground feeding portion 174 and the second radiating portion 172. When the feeding portion 173 and/or the ground feeding portion 174 abuts against the electric control board 120, the electric control board 120 is pressed by the feeding portion 173 and/or the ground feeding portion 174 to displace downward by a certain angle, and meanwhile, the electric control board 120 also generates a reaction force due to the elastic force of the electric control board, so that a certain static friction force is generated between the feeding portion 173 and/or the ground feeding portion 174 and the electric control board 120, the displacement is not easily generated, and the contact is more stable. The front-back distance and height of the feeding portion 173 and/or the feeding portion 174 may be adjusted according to actual requirements to achieve the required flexibility.

In one embodiment, the first radiation portion 171 is disposed at an angle of 90 ° with respect to the second radiation portion 172.

In this embodiment, when the electric control board 120 abuts against the feeding portion 173 and/or the grounding portion 174, the feeding portion 173 and/or the grounding portion 174 is displaced, so that the feeding portion 173 and/or the grounding portion 174 generates a pressure on the second radiation portion 172. Since the feeding portion 173 and/or the ground feeding portion 174 have an included angle different from 90 ° with the second radiation portion 172, the pressure F of the feeding portion 173 and/or the ground feeding portion 174 on the second radiation portion 172 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 171. If the first radiation portion 171 and the second radiation portion 172 are not disposed at an angle of 90 °, they will be displaced toward the first radiation 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 172 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 172 to be higher.

In this embodiment, the first radiation part 171 and the second radiation part 172 are vertically disposed, so that a component F1 of the feeding part 173 and/or the grounding part 174 to the second radiation part 172 in the vertical direction can be cancelled, the second radiation part 172 is prevented from being displaced in the vertical direction, and the antenna performance is ensured to be stable. Meanwhile, the first radiation part 171 and the second radiation part 172 are vertically arranged, and the height change of the second radiation part 172 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:

and fixing portions 176, where the fixing portions 176 are disposed on two sides of the second radiation portion 172, and form an included angle with the first radiation portion 171 and the second radiation portion 172, and the fixing portions 176 are used for fixing the antenna on an object to be mounted.

The pressure of the feeding portion 173 and/or the grounding portion 174 on the second radiation portion 172 generates a horizontal component, which causes the second radiation portion 172 to be displaced in the horizontal direction, and thus causes the contact point of the feeding portion 173 and/or the grounding portion 174 to be displaced. In this embodiment, the two sides of the second radiation portion 172 are provided with the fixing portions 176 which are arranged at the included angles with the first radiation portion 171 and the second radiation portion 172, so that the position of the second radiation portion 172 in the horizontal direction is fixed, and the electric contact between the antenna and the electric control board 120 is prevented from being influenced by the displacement. The angle between the fixing portion 176 and the first and

second radiation portions

171 and 172 may be 60 °, 90 °, or 120 °, which is not limited herein. Specifically, the fixing portion 176 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 fixing portion; alternatively, the fixing portion 176 may be provided in an L-shape, as shown in fig. 1. One end of the fixing portion 176 is bent at 90 °, a positioning hole 177 is formed on the bent portion, and a positioning post on the object to be mounted penetrates through the positioning hole 177 to fix the position of the object to be mounted. The fixing portion 176 may be bent toward the feeding portion 173 and/or the ground feeding portion 174, or may be bent toward the feeding portion 173 and/or the ground feeding portion 174, and an end of the fixing portion 176 bent may be an end close to the feeding portion 173 and/or the ground feeding portion 174, or an end close to the first radiation portion 171. The fixing portion 176 may be integrally formed with the first radiating portion 171, the second radiating portion 172, the feeding portion 173, and the feeding portion 174, or may be separately fixed to the second radiating portion 172.

The present invention also provides an antenna assembly, comprising:

the above-mentioned antenna;

the antenna comprises an antenna support, wherein a positioning column is arranged on the antenna support;

the fixing portion of the antenna is provided with a positioning hole 177, and the positioning column penetrates through the positioning hole 177 on 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 172 of antenna can laminate, thereby play the effect of fixed position and support to the antenna. The position of the positioning column corresponding to the positioning hole 177 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 herein 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 carrier;

a first antenna fixed to the carrier;

2. The electronic doorbell of claim 1, wherein the minimum distance between the first and second antennas is no less than 20mm.

3. The electronic doorbell of claim 1, wherein the first antenna is a LoRa antenna and the second antenna is a bluetooth or Wifi antenna.

4. The electronic doorbell of claim 1 further comprising a front shell and an electronic control board, the carrier being either the front shell or the electronic control board;

the first antenna and the second antenna are both arranged on the front shell;

5. The electronic doorbell of claim 4 further comprising a cover plate;

the cover plate and the front shell form a closed cavity, and the first antenna, the second antenna and the electric control board are arranged in the closed cavity.

6. The electronic doorbell of claim 4 further comprising a doorbell button;

the doorbell button is located on the preceding shell, first antenna with the second antenna branch is located the both sides of doorbell button.

7. The electronic doorbell of claim 5, further comprising a third antenna;

8. The electronic doorbell of claim 7 wherein the third antenna is one of a bluetooth, wifi antenna, and LoRa antenna.

9. The electronic doorbell of claim 7, wherein the electronic control board is disposed on the cover plate and abuts against the first, second, and third antennas;

10. The electronic doorbell of claim 4, further comprising a heat sink attached to the front shell at a location proximate to the electronic control board.