CN217157108U

CN217157108U - Protection circuit for preventing electrical appliance from toppling and shaking

Info

Publication number: CN217157108U
Application number: CN202220492652.1U
Authority: CN
Inventors: 林新汉; 西蒙·迈克尔·奎林
Original assignee: Hangzhou Gaoling Medical Technology Co ltd
Current assignee: Hangzhou Gaoling Medical Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-08-09
Anticipated expiration: 2032-03-09

Abstract

The utility model provides a protection circuit that is used for electrical apparatus to prevent empting and rocks, include host system and connect in host system's equipment state perception module, host system be used for shutting down the electrical apparatus when the perception data of equipment state perception module reaches the threshold value, host system still be connected with input module and output module, just output module include alarm module and display circuit, input module including setting up the button. The scheme can prompt a user when the power is off due to dumping or shaking so as to inform the user that the work stopped at this time is due to dumping or shaking, and the user can modify parameters such as a threshold value through setting a button so as to meet different scene requirements of the user.

Description

Protection circuit for preventing electrical appliance from toppling and shaking

Technical Field

The utility model belongs to the technical field of the electrical apparatus safety protection technique and specifically relates to a protection circuit that is used for electrical apparatus to prevent empting and rock.

Background

If the household appliance falls or shakes in the using process, the service life of the household appliance is influenced, and danger is brought to a user. For some household appliances with serious toppling effect and high danger, it is necessary to provide the household appliances with an anti-toppling function.

In order to realize the anti-toppling function, people have conducted many researches. Originally, the anti-toppling of the household appliances is realized by an external mechanical structure, namely, a switch is added at the bottom, and after the equipment is toppled or shaken to a certain degree, the external switch can cut off the whole power supply to realize the anti-toppling of the warm air blower, for example, an anti-toppling device of a warm air blower disclosed in the Chinese patent application number: CN201420536696.5], but such design has high requirements on application scenarios and also on structural design.

Later, electronic circuits were used to realize an anti-toppling function, such as a toppling warning device for test equipment disclosed in chinese patent application No. [ application No.: CN211553176U ], however, the threshold set when the anti-toppling of the electrical appliance is realized is certain, the user cannot adjust the threshold according to his own needs, and the current electrical appliance does not work when toppling, and the user cannot know the reason why the electrical appliance does not work, sometimes even think that the electrical appliance is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a protection circuit that is used for electrical apparatus to prevent empting and rock.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a protection circuit that electrical apparatus was prevented empting and was prevented rocking, include host system and connect in host system's equipment state perception module, host system be used for shutting down the electrical apparatus when the perception data of equipment state perception module reaches the threshold value, host system still be connected with input module and output module, just output module include alarm module and display circuit, input module including setting up the button.

In the anti-toppling and anti-shaking protection circuit for the electrical appliance, the input module comprises three setting buttons which are respectively connected with the main control module.

In the anti-toppling and anti-shaking protection circuit for the electrical appliance, the display circuit comprises a display driver and a display module connected to the display driver, two bit selection ends of the display module are respectively connected to the main control module, and a data input port, a shift pulse input port and a latch port of the display driver are connected to the main control module.

In the anti-toppling and anti-shaking protection circuit for the electric appliance, the alarm module comprises a buzzer connected to the main control module.

In the anti-toppling and anti-shaking protection circuit for the electrical appliance, the equipment state sensing module is an acceleration sensor.

In the anti-toppling and anti-shaking protection circuit for the electrical appliance, the data end and the control end of the acceleration sensor, which are connected with the main control module, are both connected to the voltage stabilizing circuit.

In the anti-toppling and anti-shaking protection circuit for the electric appliance, the main control module is further connected with a storage module and a quick start button, the storage module is used for storing a mode instruction, and the quick start button is used for calling the stored mode instruction.

In the anti-toppling and anti-shaking protection circuit for the electric appliance, the control signal end of the main control module is connected to the control circuit of the electric appliance.

In the anti-toppling and anti-shaking protection circuit for the electric appliance, the control circuit comprises a relay circuit, the control end of the relay circuit is connected to the main control module U1, and the controlled end is connected between the electric appliance and the power supply of the electric appliance in series.

In the anti-toppling and anti-shaking protection circuit for the electric appliance, the control circuit comprises an optical coupling circuit, the control end of the optical coupling circuit is connected to the main control module U1, and the controlled end is connected between the electric appliance and the power supply of the electric appliance in series.

The utility model has the advantages that:

the protection circuit is provided with an alarm module and a display circuit, and can give a prompt to a user when the power is off due to toppling or shaking so as to inform the user that the stopping work is caused by toppling or shaking;

the protection circuit is also provided with a setting button, so that a user can modify setting parameters such as a threshold value and the like, and different scene requirements of the user are met;

having a quick start button enables direct entry into the pre-power-off mode when the user restarts after a power outage due to toppling or shaking.

Drawings

Fig. 1 is a diagram of a protection circuit for preventing an electrical appliance from falling and shaking according to a first embodiment of the present invention;

fig. 2 is a block diagram of a protection circuit for preventing an electrical appliance from falling and shaking according to a first embodiment of the present invention;

fig. 3 is a diagram of a protection circuit for preventing an electrical appliance from falling and shaking according to a second embodiment of the present invention;

fig. 4 is a block diagram of a protection circuit for preventing the electrical appliance from falling and shaking according to a second embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1 and 2, the present embodiment discloses a protection circuit for preventing an electrical appliance from tipping and shaking, which includes a main control module U1 and an equipment state sensing module U2 connected to the main control module U1, and as with the existing anti-tipping device, the main control module U1 is configured to shut down the electrical appliance E when sensing data of the equipment state sensing module U2 reaches a threshold value, and particularly, the main control module U1 of the present embodiment is further connected with an input module and an output module.

Specifically, the output module comprises an alarm module and a display circuit, and the alarm module comprises a buzzer LS1 connected to the main control module U1. One end of the buzzer LS1 is connected to the power supply end VCC, the other end of the buzzer LS1 is connected to the ground end GND through a triode Q1, and the base of the triode Q1 is connected to the main control module U1. The display circuit comprises a display driver U5 and a display module U4 connected to the display driver U5, two bit selection terminals DIG1 and DIG2 of the display module U4 are respectively connected to the main control module U1, specifically, the bit selection terminals DIG1 and DIG2 are respectively connected to a ground terminal GND through a triode Q2 and a triode Q3, bases of a triode Q2 and a triode Q3 are respectively connected to two pin terminals of the main control module U1, and a data input port SI, a shift pulse input port SCK and a latch port RCK of the display driver U5 are all connected to the main control module U1.

The input module comprises three setting buttons S1, S2 and S3 which are respectively connected with the main control module U1, and a user can set parameters such as a threshold value and the like by operating the setting buttons. The start and stop buttons of the appliance E may be shared with the set buttons.

Specifically, the device state sensing module U2 is an acceleration sensor, the data terminal SDA and the control terminal SCL connected to the acceleration sensor and the main control module U1 are both connected to the voltage stabilizing circuit U3, and the output terminal of the voltage stabilizing circuit U3 is connected to the data terminal SDA and the control terminal SCL through the resistor R3 and the resistor R4, respectively.

Specifically, the control signal terminal RX/TX of the main control module U1 is connected to the control circuit EC of the electrical appliance E. The control circuit EC of the electric appliance E may be various circuits capable of controlling the electric appliance E and being controlled by the main control module U1, a relay circuit or an optical coupling circuit is preferred in this embodiment, the control end and the controlled end of the two circuits are separated, and a protection effect can be achieved on the protection circuit, if the relay circuit is adopted, the control end of the relay circuit is connected to the main control module U1, and the controlled end is connected in series between the electric appliance E and an electric appliance power supply; if the optical coupling circuit is adopted, the control end of the optical coupling circuit is connected to the main control module U1, and the controlled end is connected between the electric appliance E and the electric appliance power supply in series.

Example two

As shown in fig. 3 and 4, the present embodiment is similar to the present embodiment, except that the main control module U1 of the present embodiment is further connected to a storage module U6 and a fast start button S4, and the storage module U6 is used to store a mode instruction, and the fast start button S4 is used to call the stored mode instruction. Therefore, after the power supply is turned off due to dumping and shaking, a user can quickly turn on the electric appliance E through the quick start button and enable the electric appliance E to enter a mode state before power failure without resetting the user, if the fan heater has a low-temperature gear, a high-temperature gear and a normal-temperature gear, when the power failure is caused by protection when the user is set to the high-temperature gear, the electric appliance E directly enters the high-temperature gear after the user operates the quick start button. The start and stop buttons of the appliance E may be shared with the set button or the quick start button. The main control module in the embodiments and the first embodiment may both adopt an STC chip.

It should be noted that the circuit diagram, i.e. the connection description, only refers to the components relevant to the present solution, and the rest of the components are not shown in the circuit, but do not indicate that the switch component is not present when the circuit is put into use.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms main control module, device status sensing module, input module, output module, setting button, display circuit, display driver, display module, alarm module, buzzer, voltage regulator circuit, memory module, quick-start button, control circuit, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a protection circuit that is used for electrical apparatus to prevent empting and rock, include host system and connect in host system's equipment state perception module, host system be used for shutting down the electrical apparatus when the perception data of equipment state perception module reaches the threshold value, its characterized in that, host system still be connected with input module and output module, just output module include alarm module and display circuit, input module including setting up the button.

2. The protection circuit for preventing toppling and shaking of an electric appliance according to claim 1, wherein the input module comprises three setting buttons respectively connected to the main control module.

3. The protection circuit for preventing the electrical appliance from toppling and shaking of claim 2, wherein the display circuit comprises a display driver and a display module connected to the display driver, two bit selection terminals of the display module are respectively connected to the main control module, and a data input port, a shift pulse input port and a latch port of the display driver are connected to the main control module.

4. The protection circuit for preventing an appliance from being toppled and shaken as claimed in claim 3, wherein the alarm module comprises a buzzer connected to the main control module.

5. The protection circuit for preventing toppling and shaking of an electric appliance according to claim 4, wherein the device state sensing module is an acceleration sensor.

6. The protection circuit for preventing the electrical appliance from being toppled and shaken as claimed in claim 5, wherein the data terminal and the control terminal of the acceleration sensor connected with the main control module are both connected with a voltage stabilizing circuit.

7. The protection circuit for preventing the electrical appliance from being toppled and shaken as claimed in any one of claims 1 to 6, wherein the main control module is further connected with a storage module and a quick start button, the storage module is used for storing a mode command, and the quick start button is used for calling the stored mode command.

8. The protection circuit for preventing the electrical appliance from being toppled and shaken as claimed in any one of claims 1 to 6, wherein the control signal terminal of the main control module is connected to the control circuit of the electrical appliance.

9. The protection circuit for preventing an electrical appliance from being toppled and shaken as claimed in claim 8, wherein the control circuit comprises a relay circuit, a control end of the relay circuit is connected to the main control module U1, and a controlled end is connected in series between the electrical appliance and a power supply of the electrical appliance.

10. The protection circuit for preventing the electrical appliance from being toppled and shaken as claimed in claim 8, wherein the control circuit comprises an optical coupling circuit, a control end of the optical coupling circuit is connected to the main control module U1, and a controlled end is connected in series between the electrical appliance and a power supply of the electrical appliance.