CN209897186U - Visual doorbell capable of eliminating vibrato - Google Patents
Visual doorbell capable of eliminating vibrato Download PDFInfo
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- CN209897186U CN209897186U CN201921180341.6U CN201921180341U CN209897186U CN 209897186 U CN209897186 U CN 209897186U CN 201921180341 U CN201921180341 U CN 201921180341U CN 209897186 U CN209897186 U CN 209897186U
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Abstract
The utility model relates to a visual doorbell that can eliminate trill, include: a main body; the mechanical bell is arranged in the main body; the ringing circuit is electrically connected with the mechanical bell and can control the mechanical bell to switch between a ringing state and a non-ringing state; the defibrillation circuit is connected with the ringing circuit in parallel and specifically comprises a controllable switch K1 and a defibrillation resistor R1; wherein when the mechanical bell is in the non-ringing state, the controllable switch K1 is closed to turn on the defibrillation resistor R1. In the technical proposal of the utility model, the problem of ringing misoperation caused by the flutter of the mechanical bell of the visual doorbell and serious ringing under the low-voltage power supply is solved; meanwhile, the problem of the vibrato of the visual doorbell is eliminated on the premise that extra wiring and the environment of the existing equipment are not needed to be changed.
Description
Technical Field
The utility model relates to a doorbell equipment field especially relates to a visual doorbell that can eliminate vibrato.
Background
The visual doorbell is powered by AC8V to AC24V, and the mechanical bell and the visual doorbell are connected in series on the whole power supply loop. The inside of the visual doorbell is provided with a switch which can be controlled by a control chip of the visual doorbell, when the visual doorbell does not ring, the switch is in an open state, the mechanical bell and other loads of the visual doorbell are connected in series on an AC power supply, and a small current continuously flows through the mechanical bell. When the doorbell rings, the switch is controlled to be closed, other loads in the visible doorbell are bypassed, and the power supply is completely loaded on the mechanical bell, so that the mechanical bell has high current and the bell rings.
When the voltage is low, such as AC10V, no closed switch is arranged inside the visual doorbell, the current flows through the doorbell load and the mechanical bell, the visual doorbell is a relatively constant load, the current is relatively large due to the low voltage ratio, the current flowing through the mechanical bell during non-ringing can reach 500mA, the visual doorbell is not a pure resistance device, the current fluctuates, a magnetic field is generated by a relatively large current of the fluctuation, the metal rod of the mechanical bell tends to move back and forth, the whole process generates a trilling sound of the split ends, and the false operation of knocking the metal plate is serious.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
Therefore, the utility model aims at providing a visual doorbell of eliminating vibrato, it can not need under the prerequisite of extra wiring and change current equipment environment, eliminates the vibrato ability of mechanical small bell.
In order to achieve the above object, the technical scheme of the utility model provides a visual doorbell that can eliminate trill, include: a main body; the mechanical bell is arranged in the main body; the ringing circuit is electrically connected with the mechanical bell and can control the mechanical bell to switch between a ringing state and a non-ringing state; the defibrillation circuit is connected with the ringing circuit in parallel, and specifically comprises a controllable switch K1 and a defibrillation resistor R1; when the mechanical bell is in a non-ringing state, the controllable switch K1 is closed to switch on the defibrillation resistor R1; when the mechanical bell is switched from the non-ringing state to the ringing state, the controllable switch K1 is switched from closed to open to disconnect the defibrillation resistor R1; when the mechanical bell is in a bell state, the controllable switch K1 is opened to disconnect the defibrillation resistor R1; when the mechanical bell is switched from the ringing state to the non-ringing state, the controllable switch K1 changes from open to closed to switch on the defibrillation resistor R1.
In the technical scheme, the defibrillation circuit connected in parallel to the ringing circuit can shunt current flowing through the ringing circuit after the ringing state is finished or in a non-ringing state so as to reduce the current flowing through the mechanical bell, play a role in eliminating the vibrato, and solve the problem of ringing misoperation caused by the mechanical bell vibrato of the visual doorbell and serious ringing under low-voltage power supply; meanwhile, the problem of the vibrato of the visual doorbell is eliminated on the premise that extra wiring and the environment of the existing equipment are not needed to be changed.
In the above technical solution, preferably, the ring circuit includes: a power source; a ringing resistor R0 electrically connected to the power supply; a ringer switch K0 connected to the ringer resistor R0; the mechanical bell is switched between a bell state and a non-bell state by opening and closing the bell switch K0.
In the technical scheme, the control chip in the visual doorbell can control the on-off of the ringing switch K0, when the visual doorbell rings, the control chip controls the ringing switch K0 to be in an on state, the mechanical bell and other loads of the visual doorbell are connected in series on a power supply, and a small current continuously flows through the mechanical bell. When the doorbell rings, the ring switch K0 is controlled by the control chip to be closed, other loads inside the visible doorbell are bypassed, and the power supply is completely loaded on the mechanical bell, so that the bell with large current rings.
In the above technical solution, preferably, the voltage of the power supply is AC 8V-24V.
In the above technical solution, preferably, the ringing resistor R0 is 8 Ω -15 Ω.
In the above technical solution, the defibrillation resistor R1 is preferably smaller than the ringing resistor R0.
In the technical scheme, the resistance value of the defibrillation resistor R1 is set to be smaller than that of the ringing resistor R0, after the defibrillation circuit is connected, the defibrillation resistor R1 can divide more current, and the defibrillation effect of the defibrillation circuit in the visual doorbell is improved.
In any of the above solutions, the ringing resistance R0 is preferably < 10 Ω.
In any of the above solutions, the controllable switch K1 is preferably a thyristor, a thyristor or a relay.
In this embodiment, the controllable switch K1 may be, but is not limited to, one of a thyristor, and a relay, and may also be another switch structure that can be controlled to open and close.
In any of the above technical solutions, preferably, the main body includes: the display screen is used for displaying image information; the doorbell button is electrically connected with the controllable switch K1 and can control the on-off of the controllable switch K1.
According to the technical scheme, the display can display the scene outside the door on the display screen after a person presses the doorbell button, so that a user can know the condition outside the door conveniently, and can make the next judgment according to the condition outside the door; meanwhile, the controllable switch K1 inside the visual doorbell can sense whether the doorbell button is pressed or not, and then is opened or closed through sensing the actual condition of the doorbell button.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a circuit diagram of a visible doorbell according to an embodiment of the present invention;
wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:
10 ringing circuit, 11 power supply, 20 defibrillation circuit, 30 other loads.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
A visual doorbell that eliminates vibrato in accordance with some embodiments of the present invention is described below with reference to fig. 1.
As shown in fig. 1, according to the utility model discloses a visual doorbell of eliminating trill of an embodiment includes: a main body; the mechanical bell is arranged in the main body; the bell circuit 10 is electrically connected with the mechanical bell, and the bell circuit 10 can control the mechanical bell to switch between a bell state and a non-bell state; the defibrillation circuit 20 is connected with the ringing circuit 10 in parallel, and the defibrillation circuit 20 specifically comprises a controllable switch K1 and a defibrillation resistor R1; when the mechanical bell is in a non-ringing state, the controllable switch K1 is closed to switch on the defibrillation resistor R1; when the mechanical bell is switched from the non-ringing state to the ringing state, the controllable switch K1 is switched from closed to open to disconnect the defibrillation resistor R1; when the mechanical bell is in a bell state, the controllable switch K1 is opened to disconnect the defibrillation resistor R1; when the mechanical bell is switched from the ringing state to the non-ringing state, the controllable switch K1 changes from open to closed to switch on the defibrillation resistor R1.
In this embodiment, the defibrillation circuit 20 connected in parallel to the bell circuit 10 can shunt the current flowing through the bell circuit 10 after the bell state is over or in the non-bell state, so as to reduce the current flowing through the mechanical bell, thereby playing a role in eliminating the vibrato, and solving the problem of misoperation of bell when the mechanical bell of the visual doorbell is vibrato and is serious under the condition of low-voltage power supply; meanwhile, the problem of the vibrato of the visual doorbell is eliminated on the premise that extra wiring and the environment of the existing equipment are not needed to be changed.
In this embodiment, the operation of the controllable switch K1 is not limited to sensing a relatively significant voltage difference between two ends of the mechanical bell, and the operation of the controllable switch K1 may be controlled by some means such as wireless communication, power carrier communication, etc. between the visual doorbell and the defibrillation circuit 20.
As shown in fig. 1, according to another embodiment of the present invention, a visual doorbell capable of eliminating vibrato, a ringing circuit 10 includes: a power supply 11; a ringer resistor R0 electrically connected to the power supply 11; a ringer switch K0 connected to the ringer resistor R0; the mechanical bell is switched between a bell state and a non-bell state by opening and closing the bell switch K0.
Specifically, the voltage of the power supply 11 is AC 8V-24V; the ringing resistor R0 is 8 Ω -15 Ω, and may be selected to be 10 Ω, 11 Ω or 13 Ω.
In this embodiment, the control chip inside the visual doorbell can control the on/off of the ringer switch K0, and when the visual doorbell is not ringing, the control chip controls the ringer switch K0 to be in the on state, the mechanical bell is connected in series with the other loads 30 of the visual doorbell on the power supply 11, and a small current continuously flows through the mechanical bell. When the doorbell rings, the ring switch K0 is controlled by the control chip to be closed, other loads inside the visible doorbell are bypassed, and the power supply 11 is completely loaded on the mechanical bell, so that the bell with large current rings.
In any of the above embodiments, the defibrillation resistor R1 is preferably smaller than the ringer resistor R0.
Specifically, the ringing resistance R0 is less than 10 Ω, and the selectable value is 2 Ω and 3 Ω.
In this embodiment, the resistance value of the defibrillation resistor R1 is set to be smaller than the resistance value of the ringing resistor R0, so that the defibrillation resistor R1 can draw more current after the defibrillation circuit 20 is turned on, and the defibrillation effect of the defibrillation circuit 20 in the visual doorbell is improved.
In any of the above embodiments, the controllable switch K1 is preferably a thyristor, or a relay.
In this embodiment, the controllable switch K1 can be one of, but not limited to, a thyristor and a relay, and can also be other switch structures that can be controlled to open and close.
In any of the above embodiments, optionally, the defibrillation resistor R1 is a positive temperature coefficient thermistor.
In this embodiment, the defibrillation resistor R1 is preferably a conventional resistor, although a positive temperature coefficient thermistor may also be used.
As shown in fig. 1, according to the utility model discloses visual doorbell of eliminating trill of still another embodiment, the main part includes: a display screen (not shown) for displaying image information; the doorbell button (not shown) is electrically connected to the controllable switch K1, and can control the opening and closing of the controllable switch K1.
In the embodiment, the display can display the scene outside the door on the display screen after a person presses the doorbell button, so that a user can know the situation outside the door conveniently, and can make the next judgment according to the situation outside the door; meanwhile, the controllable switch K1 inside the visual doorbell can sense whether the doorbell button is pressed or not, and then is opened or closed through sensing the actual condition of the doorbell button.
In the embodiment, the change of the controllable switch K1 depends on the bell operation (the bell button is pressed), the defibrillation circuit 20 is directly connected in parallel with the two ends of the mechanical bell, when the visual bell works normally, the bell switch K0 inside the visual bell is opened, the bell circuit 10 and the mechanical bell are connected in series to be used as a whole load to draw current from the power supply 11, the current is relatively small, so the voltage formed by the mechanical bell is also relatively small, when the bell needs to ring, the bell switch K0 inside the visual bell is closed, and the voltage of the power supply 11 is almost completely loaded on the mechanical bell and also on the defibrillation circuit 20. Therefore, the direct judgment factor of the action of the controllable switch K1 is the voltage at the two ends of the mechanical bell, and when the voltage is smaller, the controllable switch K1 does not act and is in a normally closed state. When the voltage is higher, the controllable switch K1 is turned on, all current flows through the mechanical bell, and enough current is ensured to flow through the mechanical bell, so that the metal bar acts to knock the metal plate.
Particularly, the utility model provides a visual doorbell's that can eliminate trill theory of operation does:
working state 1: when the mechanical bell rings, the controllable switch K1 is turned on, the defibrillation resistor R1 is disconnected with the mechanical bell, and all current flows through the mechanical bell, so that enough current is ensured to flow through the mechanical bell, and the metal bar acts to knock the metal plate.
And 2, working state: when the ringing state of the mechanical bell is finished, the controllable switch K1 detects that the ringing of the bell is finished, and the controllable switch K1 jumps from the open state to the closed state. Defibrillation resistor R1 jumps from the open circuit to the bypass state;
and 3, working state: when the mechanical bell is in a non-ringing state, the controllable switch K1 is closed, the defibrillation resistor R1 is connected with the mechanical bell in parallel, and a smaller total resistor is obtained
Meanwhile, the two resistors are in shunt connection, when I current is required by the device, a part of current flows through the defibrillation resistor R1, and the current actually flowing through the mechanical bell is only the currentThe current is less than I, so that the current flowing through the mechanical bell can be reduced, and the effect of eliminating the tremolo is achieved.
And the working state 4: when the mechanical bell ringing state starts, the controllable switch K1 detects that the mechanical bell starts to ring, the controllable switch K1 jumps from the closed state to the open state, and the defibrillation resistor R1 jumps from the bypass to the open circuit.
It should be noted that the controllable switch K1 in the whole defibrillation sound circuit is normally closed, that is, the defibrillation resistor R1 is normally connected in parallel with the ringing resistor R0, and the controllable switch K1 jumps from normally closed to open when and only when ringing is required.
In the present invention, the terms "mounting", "connecting", "fixing" and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A visual doorbell capable of eliminating vibrato, comprising:
a main body;
the mechanical bell is arranged in the main body;
the ringing circuit is electrically connected with the mechanical bell and can control the mechanical bell to switch between a ringing state and a non-ringing state;
the defibrillation circuit is connected with the ringing circuit in parallel and specifically comprises a controllable switch K1 and a defibrillation resistor R1;
wherein when the mechanical bell is in the non-ringing state, the controllable switch K1 is closed to turn on the defibrillation resistor R1; when the mechanical bell is switched from the non-ringing state to the ringing state, the controllable switch K1 is changed from closed to open to disconnect the defibrillation resistor R1; when the mechanical bell is in a ringing state, the controllable switch K1 is opened to disconnect the defibrillation resistor R1; when the mechanical bell is switched from the ringing state to the non-ringing state, the controllable switch K1 changes from open to closed to switch on the defibrillation resistor R1.
2. The visual doorbell of claim 1, wherein: the ringing circuit includes:
a power source;
a ringer resistor R0 electrically connected to the power source;
a ringer switch K0 connected to the ringer resistor R0;
wherein, the mechanical bell is controlled to switch between a ringing state and a non-ringing state by the opening and closing of the ringing switch K0.
3. The visual doorbell of claim 2, wherein: the voltage of the power supply is AC 8V-24V.
4. The visual doorbell of claim 2, wherein: the ringing resistor R0 is 8-15 omega.
5. The visual doorbell of claim 2, wherein: the defibrillation resistor R1 is smaller than the ringer resistor R0.
6. A visual doorbell according to any one of claims 2-5 and being able to eliminate the vibrato, wherein: the ringing resistance R0 is less than 10 omega.
7. A visual doorbell according to any one of claims 1-5 and being able to eliminate the vibrato, wherein: the controllable switch K1 is a thyristor, a thyristor or a relay.
8. The visual doorbell of any one of claims 1-5 wherein the body comprises:
the display screen is used for displaying image information;
the doorbell button, with controllable switch K1 electricity is connected, the doorbell button can control controllable switch K1's switching.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921180341.6U CN209897186U (en) | 2019-07-25 | 2019-07-25 | Visual doorbell capable of eliminating vibrato |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921180341.6U CN209897186U (en) | 2019-07-25 | 2019-07-25 | Visual doorbell capable of eliminating vibrato |
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| CN209897186U true CN209897186U (en) | 2020-01-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389322A (en) * | 2020-10-20 | 2022-04-22 | 深圳海翼智新科技有限公司 | Doorbell camera device and electricity taking control method |
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2019
- 2019-07-25 CN CN201921180341.6U patent/CN209897186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389322A (en) * | 2020-10-20 | 2022-04-22 | 深圳海翼智新科技有限公司 | Doorbell camera device and electricity taking control method |
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