CN213110899U

CN213110899U - Prevent tong circuit based on encoder

Info

Publication number: CN213110899U
Application number: CN202021605376.2U
Authority: CN
Inventors: 金帝; 徐健
Original assignee: Shanghai Townew Intelligent Technology Co Ltd
Current assignee: Shanghai Townew Intelligent Technology Co Ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-05-04
Anticipated expiration: 2030-08-05

Abstract

The utility model relates to an intelligence garbage bin technical field especially relates to a prevent tong circuit based on encoder, including the main control MCU of the motor encoder of installation and control driving motor on the driving motor that control rubbish bung opened and shut, driving motor. The motor encoder obtains the number of running turns and running time of the driving motor, and the actual running distance of the cover of the garbage can and the real-time speed of the driving motor are obtained by combining the parameters of the garbage can. The main control MCU adjusts the real-time running power of the driving motor, controls the rotating speed of the driving motor to be stable, and can control the garbage can cover to fall at a proper speed at a constant speed so as to achieve a mute effect. Meanwhile, when the rotating speed of the driving motor is obviously changed, namely the garbage can cover is prevented from moving, the driving motor is controlled to stop moving, and therefore the purpose of preventing hands from being clamped is achieved.

Description

Prevent tong circuit based on encoder

Technical Field

The utility model relates to the technical field of, especially, relate to a prevent tong circuit based on encoder.

Background

Along with the development of social economy and the improvement of living standard of people, the life of people gradually becomes intelligent. And a lot of electric switch lid products on the market at present, like intelligent garbage bin, can appear opening at the switch lid in-process and open and reach the hand and close the circumstances such as lid tong, cause the injury to the user easily, the security is not enough. At present, the cover closing process similar to the intelligent garbage can is not provided with good anti-pinch protection measures.

Patent CN201620788645.0 discloses an intelligent trash can with anti-pinch function, which includes a box body, the interior of which has a space for holding trash; the top of the box body is provided with an opening communicated with the accommodating space; the cover body is arranged on the opening in a covering manner; a gravity sensor is arranged on the cover body; the opening is provided with an induction device, the box body is also internally provided with a driving mechanism and a control circuit, and the induction device, the gravity sensor and the driving mechanism are all electrically connected with the control circuit; the driving mechanism is used for driving the cover body to rotate so as to enable the opening to be in an opening state or a closing state.

However, the above technical solutions still have not little drawbacks:

the opening part is provided with the sensing device, so that the cost of the garbage can is increased, meanwhile, the condition that a hand is hit in the opening process of the garbage can cover still exists, and certain potential safety hazards still exist.

Disclosure of Invention

The utility model discloses a main aim at overcomes not enough among the prior art, provides a prevent tong circuit based on encoder. The circuit has the advantages of preventing hands from being clamped, preventing hitting, being good in mute effect and the like.

The utility model discloses a realize that the technical scheme that its technical purpose adopted is: the utility model provides a prevent tong circuit based on encoder, its structural feature is, including the driving motor who controls the rubbish bung and open and shut, the last motor encoder of installing of driving motor and the main control MCU who controls driving motor.

The motor encoder obtains the number of running turns and running time of the driving motor, and the actual running distance of the cover of the garbage can and the real-time speed of the driving motor are obtained by combining the parameters of the garbage can.

The main control MCU adjusts the real-time running power of the driving motor, controls the rotating speed of the driving motor to be stable, and can control the garbage can cover to fall at a proper speed at a constant speed so as to achieve a mute effect. Meanwhile, when the rotating speed of the driving motor is obviously changed, namely the garbage can cover is prevented from moving, the driving motor is controlled to stop moving, and therefore the purpose of preventing hands from being clamped is achieved.

The garbage can cover is controlled to fall at a proper speed at a constant speed, the main control MCU compares the real-time speed with the set speed, the rotating power of the driving motor is adjusted in real time, the required rotating speed is reached, the garbage can cover is controlled to fall at a proper speed at a constant speed, and the silencing effect is achieved. Meanwhile, when the speed of the driving motor is obviously changed, if the rotating speed suddenly drops to be less than 30% of the original speed, the situation that the cover is obstructed in the advancing process can be judged, and the motor stops moving, so that the aim of preventing hands from being clamped can be fulfilled.

Preferably, the master control MCU is a single chip microcomputer, and is used for collecting information of the motor encoder and controlling the driving motor to move.

Preferably, the driving motor is an H-bridge motor driving circuit, and the driving motor is controlled to rotate forwards and backwards, so that the opening and closing actions of the garbage can are realized.

Preferably, the motor encoder comprises a photosensitive sensor, a light code disc and a light emitting tube, wherein the light code disc is connected to a rotating shaft of the driving motor, and obtains photoelectric signals to be transmitted to the main control MCU.

Preferably, a timer is arranged in the master control MCU.

Preferably, the master control MCU is connected with a voice prompt device, and when the rotating speed of the driving motor is obviously changed and the master control MCU controls the driving motor to stop moving, the voice prompt device can send out voice prompts to remind a user, so that the use experience of the user is improved.

The utility model has the advantages that: the utility model discloses open the lid and all have fine control with the structure impact, noise etc. of closed in-process, also can acquire simultaneously in real time whether the rubbish bung meets the barrier, in time reflects, avoided the lid to open the condition of hitting hand or the closed tong of lid, made user experience better.

Drawings

Fig. 1 is the utility model relates to a prevent tong circuit schematic diagram based on encoder.

Fig. 2 is the utility model relates to a prevent main control MCU circuit schematic diagram of tong circuit based on encoder.

Fig. 3 is the utility model relates to a prevent driving motor circuit schematic diagram of tong circuit based on encoder.

Fig. 4 is the utility model relates to a prevent motor encoder circuit schematic diagram of tong circuit based on encoder.

Fig. 5 is the utility model relates to a prevent motor encoder working schematic diagram of tong circuit based on encoder.

Wherein: 1. a drive motor; 2. a motor encoder; 21. a photosensitive sensor; 22. an optical code disc; 23. a light emitting tube; 3. a main control MCU; 4. provided is a voice prompt device.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element to which the description refers must have a specific position, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1, as shown in the drawings, the anti-pinch circuit based on the encoder is structurally characterized by comprising a driving motor 1 for controlling the opening and closing of a trash can cover, a motor encoder 2 arranged on the driving motor, and a main control MCU3 for controlling the driving motor.

The motor encoder 2 obtains the number of running turns and the running time of the driving motor 1, and the actual running distance of the cover of the garbage can and the real-time speed of the driving motor 1 are obtained by combining the parameters of the garbage can.

The main control MCU3 adjusts the real-time running power of the driving motor 1, controls the stable rotating speed of the driving motor 1, and can control the cover of the garbage can to fall at a proper speed and a uniform speed, so that the mute effect is achieved. Meanwhile, when the rotating speed of the driving motor 1 is obviously changed, namely the garbage can cover is in obstacle in the advancing process, the driving motor 1 is controlled to stop moving, and therefore the purpose of preventing hands from being clamped is achieved. A timer is arranged in the master control MCU 3.

The master control MCU3 is connected with voice prompt device 4, and when the rotational speed of the driving motor 1 is obviously changed, and the master control MCU controls the driving motor 1 to stop moving, voice prompt can be sent out to remind a user, and the use experience of the user is improved.

The main control MCU3 is a single chip microcomputer, collects information of the motor encoder 2 and controls the driving motor 1 to move, and is a circuit diagram of the main control MCU, which is specifically referred to in fig. 2.

The driving motor 1 is an H-bridge motor driving circuit, and controls the driving motor to rotate forward and backward to realize the opening and closing actions of the garbage can, and the circuit diagram of the driving motor specifically refers to fig. 3.

The motor encoder 2 comprises a photosensitive sensor 21, a light code disc 22 and a light emitting tube 23, the light code disc 22 is connected to the driving motor 1, photoelectric signals are obtained and transmitted to the main control MCU3, and a circuit of the motor encoder specifically refers to fig. 4.

Referring to fig. 5, the photoelectric signal is obtained through the optical code disc connected to the rotating shaft of the driving motor and transmitted to the single chip of the main control MCU. The single chip microcomputer is internally provided with a timer system, so that very accurate timing time is obtained, for example: the number of the photoelectric signal pulses obtained within 100ms after the timer is started is 1000, and 200 pulses can be generated by the driving motor every 1 rotation. The number of turns of the driving motor movement is converted into 1000 times divided by 200 (times/turn) =5 turns, that is, the driving motor can rotate 50 turns per second. Therefore, the power for driving the motor to rotate can be adjusted to reach the required rotating speed through the main control MCU.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims

1. The utility model provides an prevent tong circuit based on encoder which characterized in that: the garbage can cover opening and closing control device comprises a driving motor (1) for controlling the opening and closing of a garbage can cover, a motor encoder (2) arranged on the driving motor and a main control MCU (3) for controlling the driving motor;

the motor encoder (2) acquires the running circle number and the running time of the driving motor (1), and the actual running distance of the cover of the garbage can and the real-time speed of the driving motor (1) are obtained by combining the parameters of the garbage can;

the main control MCU (3) adjusts the real-time running power of the driving motor (1), controls the rotating speed of the driving motor (1) to be stable, and controls the driving motor (1) to stop moving when the rotating speed of the driving motor (1) is obviously changed, namely, when the garbage can cover is in obstacle during the advancing process, so that the aim of preventing hands from being clamped is fulfilled.

2. The encoder-based anti-pinch circuit of claim 1, wherein: the master control MCU (3) is a singlechip and is used for collecting information of the motor encoder (2) and controlling the driving motor (1) to move.

3. The encoder-based anti-pinch circuit of claim 1, wherein: the driving motor (1) is an H-bridge motor driving circuit.

4. The encoder-based anti-pinch circuit of claim 1, wherein: the motor encoder (2) comprises a photosensitive sensor (21), a light code disc (22) and a light emitting tube (23), wherein the light code disc (22) is connected to the driving motor (1) to obtain photoelectric signals and transmit the photoelectric signals to the master control MCU (3).

5. The encoder-based anti-pinch circuit of claim 1, wherein: and a timer is arranged in the main control MCU (3).

6. The encoder-based anti-pinch circuit of claim 1, wherein: the master control MCU (3) is connected with a voice prompt device (4).