CN211506667U - Wireless doorbell - Google Patents

Abstract

The utility model discloses a wireless doorbell, including transmitter and receiver, the transmission chip is CMT2157A model, and the receiving chip is CMT2218B model, and the transmission chip is CMT2157A in this transmitter, and the integrated level is high, low-power consumption, and the power saving controls transmitter transmission long distance, stabilizes the electric wave signal, and the receiving chip is CMT2218B in the receiver, and sensitivity is high, receives the electric wave signal stably accurately, satisfies the stable doorbell reliable operation of long distance.

Description

Wireless doorbell

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of the doorbell, concretely relates to wireless doorbell.

[ background of the invention ]

The wireless doorbell is also called a wireless remote control doorbell or a remote control doorbell and is used for indoor and outdoor visiting reminding in places such as families or companies, the existing doorbell is unstable in signal transmission, short in transmission distance and incapable of meeting the requirement of remote installation and use.

[ Utility model ] content

In order to solve the existing problem that exists among the background art, the utility model provides a wireless doorbell can satisfy longer distance's stable signal transmission.

The utility model adopts the following technical proposal:

the wireless doorbell comprises a transmitter and a receiver, wherein the transmitter comprises a transmitter bottom shell, a transmitter face shell, a transmitter circuit board, a battery and a doorbell button, the transmitter circuit board is locked in the transmitter face shell, the transmitter face shell is detachably covered on the transmitter bottom shell, the battery is installed on the transmitter bottom shell, an electric quantity indicator lamp, a transmitting switch, a transmitting chip and a transmitting module are arranged on the transmitter circuit board, the battery is respectively connected with the electric quantity indicator lamp, the transmitting chip and the transmitting module, the transmitting switch is electrically connected with the transmitting chip, the transmitting chip is connected with the transmitting module, the doorbell button is arranged on a button hole in the transmitter face shell and is in controllable contact connection with the transmitting switch, double-sided adhesive is further arranged at the rear part of the transmitter bottom shell, and the transmitting chip is of CMT2157A type;

the receiver includes receiver drain pan, receiver face-piece, receiver circuit board, loudspeaker and receiver button, loudspeaker install in the receiver drain pan, receiver circuit board lock connect in simultaneously in receiver drain pan and receiver face-piece, the receiver face-piece can be dismantled to cover on the receiver drain pan, receiver circuit board lateral part is equipped with vertical distribution's ring tone button and volume button, still be equipped with interconnect's receiving chip and receiving module on the receiver circuit board, receiving module is connected with loudspeaker and is used for receiving the radio wave of emission module transmission, ring tone button, volume button are all connected receiving chip, the receiver button install in receiver face-piece lateral part and controllable touch connect ring tone button and volume button, receiving chip is the CMT2218B model.

The utility model has the advantages as follows:

the transmitting chip is CMT2157A in this transmitter, and the integrated level is high, low-power consumption, and the power saving controls transmitter transmission long distance, stabilizes the electric wave signal, and the receiving chip is CMT2218B in the receiver, and sensitivity is high, and stable accurate ground receipt electric wave signal satisfies the reliable work of the stable doorbell of long distance.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the transmitter of the present invention;

fig. 2 is a schematic structural diagram of the receiver of the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.

Referring to fig. 1 and 2, the wireless doorbell comprises a transmitter and a receiver, the transmitter comprises a transmitter bottom case 1, a transmitter face case 2, a transmitter circuit board 3, a battery 4 and a doorbell button 5, the transmitter circuit board 3 is locked in the transmitter face case 2, the transmitter face case 2 is detachably covered on the transmitter bottom case 1, the battery 4 is installed on the transmitter bottom case 1, the transmitter circuit board 3 is provided with an electric quantity indicator lamp 31, a transmitting chip 32, a transmitting chip 33 and a transmitting module 34, the battery 4 is respectively connected with the electric quantity indicator lamp 31, the transmitting chip 33 and the transmitting module 34, the transmitting chip 32 is electrically connected with the transmitting chip 33, the transmitting chip 33 is connected with the transmitting module 34, the doorbell button 5 is installed on a button opening 21 on the transmitter face case 2 and is in controllable contact with the transmitting switch 32, the rear portion of the transmitter bottom shell 1 is further provided with a double-faced adhesive tape 6, the transmitting chip 33 is of a CMT2157A type, preferably, the type chip has high integration level and low power consumption, only 20mW of output power is needed, the data coding is of 1527 format, an FSK modulation mode is adopted, after the doorbell key 5 is pressed, the transmitting chip 33 controls the transmitter to transmit 433MHZ frequency electric waves, the electric quantity of the battery 4 can be known through the electric quantity indicating lamp 31, the transmitted electric waves are transmitted to the receiver to be received, the long-distance transmission is suitable, and signals are stable.

Referring to fig. 2, the receiver includes a receiver bottom case 7, a receiver face case 8, a receiver circuit board 9, a speaker 10 and a receiver key 11, the speaker 10 is installed in the receiver bottom case 7, the receiver circuit board 9 is locked in the receiver bottom case 7 and the receiver face case 8 at the same time, the receiver face case 8 is detachably covered on the receiver bottom case 7, a ring key 91 and a volume key 92 are vertically distributed on a side portion of the receiver circuit board 9, a receiving chip 12 and a receiving module 13 are further arranged on the receiver circuit board 9, the receiving module 13 is connected with the speaker 10 for receiving radio waves transmitted by the transmitting module 34, the ring key 91 and the volume key 92 are both connected with the receiving chip 12, the receiver key 11 is installed on a side portion of the receiver face case 8 and can be in contact with the ring key 91 and the volume key 92, the receiving chip 12 is of a CMT2218B model; preferably this model chip adaptation is simple to be installed, high integration low-power consumption has, the advantage that sensitivity is high, domestic power is connected to this receiver, work under domestic voltage, the electric wave is sent out to the receiver receiving transmitter, receiving chip 12 can rapid and stable carry out frequency correction and quick accurate effective signal monitoring, and pass through the analog signal that digital analog conversion formation corresponds with the electric wave and send doorbell "ding dong" sound, furthermore, can also select the ring sound of heart appearance through ring sound button 91, volume button 92 control ring sound volume size, it is practical convenient, adapt to the stable signal transmission of long distance, keep doorbell reliable work.

The utility model has the advantages that:

the transmitting chip is CMT2157A in this transmitter, and the integrated level is high, low-power consumption, and the power saving controls transmitter transmission long distance, stabilizes the electric wave signal, and the receiving chip is CMT2218B in the receiver, and sensitivity is high, and stable accurate ground receipt electric wave signal satisfies the reliable work of the stable doorbell of long distance.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims (1)

1. Wireless doorbell, including transmitter and receiver, its characterized in that:

the transmitter comprises a transmitter bottom shell, a transmitter surface shell, a transmitter circuit board, a battery and a doorbell button, the transmitter circuit board is locked in the transmitter surface shell, the transmitter surface shell is detachably covered on the transmitter bottom shell, the battery is installed on the transmitter bottom shell, the transmitter circuit board is provided with an electric quantity indicator lamp, a transmitting switch, a transmitting chip and a transmitting module, the battery is respectively connected with the electric quantity indicator lamp, the transmitting chip and the transmitting module, the transmitting switch is electrically connected with the transmitting chip, the transmitting chip is connected with the transmitting module, the doorbell button is installed at a button hole in the transmitter surface shell and is in controllable contact with the transmitting switch, double-faced adhesive is further arranged at the rear part of the transmitter bottom shell, and the transmitting chip is of CMT2157A type;

the receiver includes receiver drain pan, receiver face-piece, receiver circuit board, loudspeaker and receiver button, loudspeaker install in the receiver drain pan, receiver circuit board lock connect in simultaneously in receiver drain pan and receiver face-piece, the receiver face-piece can be dismantled to cover on the receiver drain pan, receiver circuit board lateral part is equipped with vertical distribution's ring tone button and volume button, still be equipped with interconnect's receiving chip and receiving module on the receiver circuit board, receiving module is connected with loudspeaker and is used for receiving the radio wave of emission module transmission, ring tone button, volume button are all connected receiving chip, the receiver button install in receiver face-piece lateral part and controllable touch connect ring tone button and volume button, receiving chip is the CMT2218B model.

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