CN2868164Y - Charging device for automatic vacuum cleaner - Google Patents

Abstract

The utility model relates to a charging device for an automatic vacuum cleaner. It has a charging base body, and a charging electrode device, an infrared emitting tube, and an infrared receiving module are arranged in the middle of the charging base body; Control circuit board; the circuit of the control circuit board is: the rectification filter circuit is connected with the switch tube and the charging electrode in turn, the processor is connected with the switch tube, the power amplifier circuit, and the infrared receiving module respectively, and the power amplifier circuit is connected with the infrared emission tube . The utility model realizes that the vacuum cleaner can automatically supplement electric power without human intervention, and truly realizes the autonomous work of the vacuum cleaner. The vacuum cleaner finds the charging stand by sticking to the wall, which can efficiently and reliably locate the charging stand, providing the necessary prerequisite for smooth charging. Two support springs are arranged on the back of the electrodes on the charging stand, each of which can be stretched, so as to ensure reliable contact between the charging stand and the electrodes on the vacuum cleaner.

Description

Charging device for automatic vacuum cleaner

technical field

The utility model relates to a charging device for an automatic vacuum cleaner, which is used for helping the vacuum cleaner to find a charging seat when the battery of the automatic vacuum cleaner is nearly exhausted, and automatically docking for charging.

Background technique

Compared with traditional vacuum cleaners, robotic vacuum cleaners work completely autonomously, powered by rechargeable batteries, and do not have to drag power cords while working. When working for a period of time and the battery power is almost exhausted, the vacuum cleaner needs to be recharged. At this time, the automatic vacuum cleaner automatically searches for a charging stand, performs automatic docking, and then automatically charges. This feature is a very critical one for a robotic vacuum cleaner to work completely autonomously. Among them, there are three key technologies that need to be solved. First, the mechanism that ensures the close contact between the charging electrode of the vacuum cleaner and the charging electrode of the charging stand; second, the method for the vacuum cleaner to identify the charging stand; third, the vacuum cleaner can adjust its posture so that The method in which the charging electrode of itself is directly facing the charging electrode of the charging stand. Existing charging devices and docking methods rely on passive media such as magnets or reflective materials as identification marks to determine the position of the charging stand, and the charging stand is used as a passive mechanism. This is not conducive to guiding the smooth docking of the vacuum cleaner, and it does not have an autonomous function, cannot perform status display, and cannot control the charging power supply.

Contents of the invention

The purpose of the utility model is to provide a charging device for an automatic vacuum cleaner, which overcomes the disadvantages of not smooth docking of the guiding vacuum cleaner, weak autonomous function, and inability to display the status.

It has a charging base body, and a charging electrode device, an infrared emitting tube, and an infrared receiving module are arranged in the middle of the charging base body; Control circuit board; the circuit of the control circuit board is: the rectification filter circuit is connected with the switch tube and the charging electrode in turn, the processor is connected with the switch tube, the power amplifier circuit, and the infrared receiving module respectively, and the power amplifier circuit is connected with the infrared emission tube .

The charging electrode is fixed on the charging base body through the mounting bracket, and the rear end is provided with a supporting spring. The front end of the charging electrode is matched with the electrode installation groove of the charging base body. The infrared emitting tube and the infrared receiving module are directly above the charging electrode device. The charging electrode includes a positive electrode and a negative electrode, which are placed vertically up and down or horizontally left and right, with a fixed distance between the positive and negative electrodes, and the shape is strip-shaped.

Compared with the prior art, the utility model has the following advantages:

Firstly, through the design of the structure and the program, the utility model realizes that the vacuum cleaner can replenish electric power without human intervention, and truly realizes the autonomous operation of the vacuum cleaner.

Secondly, the vacuum cleaner finds the charging stand by sticking to the wall, which can efficiently and reliably locate the charging stand, providing the necessary prerequisite for smooth charging.

Secondly, the utility model designs a handshake signal between the vacuum cleaner and the charging base, so that the charging base can identify whether the vacuum cleaner needs signal guidance, which can prevent the infrared signal from being in the emission state; at the same time, the charging power can be turned on when charging is needed , while the charging power is turned off in normal times.

Secondly, through a single infrared transmitting signal and numerous infrared receiving tube arrays, the positional relationship between the vacuum cleaner and the charging stand can be effectively determined, facilitating the final docking.

Finally, two support springs are set on the back of the electrodes on the charging stand, each of which can be stretched, so as to ensure reliable contact between the charging stand and the electrodes on the vacuum cleaner.

Description of drawings

Fig. 1 (a) is the structural schematic diagram of the charging device of automatic vacuum cleaner;

Fig. 1 (b) is the top view of the charging device of automatic vacuum cleaner;

Fig. 2 is a block diagram of the control circuit of the utility model charging stand;

Fig. 3 is a structural schematic diagram of the electrode device of the charging stand of the utility model;

Fig. 4 (a) is the front view of vacuum cleaner body;

Fig. 4 (b) is the top view of vacuum cleaner body;

Fig. 5 is a schematic diagram of the infrared receiving tube array of the vacuum cleaner body;

Fig. 6 is a circuit block diagram of the vacuum cleaner body.

Fig. 7 is a schematic diagram of the docking of the vacuum cleaner body and the charging device;

In the figure: charging base body 1, charging electrode 2, infrared emission tube 3, infrared receiving module 4, status indicator light 5, remote control socket 6, control circuit board 7, fixed bracket 8, support spring 9, vacuum cleaner body 10, collision Plate 11, charging electrode 12, infrared receiving tube array 13, infrared emitting tube 14.

Detailed ways

The charging device of the automatic vacuum cleaner and the docking method thereof are used for helping the vacuum cleaner to find the charging base when the battery of the automatic vacuum cleaner is nearly exhausted, and automatically docking for charging.

The technical scheme of the utility model is:

The charging device of the automatic vacuum cleaner has a charging base body 1, and a charging electrode device, an infrared emitting tube 3, and an infrared receiving module 4 are arranged directly in front of the middle of the charging base body 1; The device socket 6 is provided with a control circuit board 7 on the charging base body 1; the circuit of the control circuit board is: the rectifier filter circuit is connected with the switch tube and the charging electrode 2 in turn, and the processor is respectively connected with the switch tube, the power amplifier circuit, the infrared The receiving module is connected, and the power amplifier circuit is connected with the infrared emitting tube.

The control circuit set on the charging base is responsible for controlling the infrared transmission and reception, and turning on and off the charging power supply according to the signal situation, including: rectifying and filtering circuit, switching tube, processor, infrared receiving module, power amplifier circuit, infrared emitting tube. The processor adopts single-chip microcomputer 89C2051; the switch tube adopts power triode TIP127; the power amplifier adopts triode 9013 to amplify; the infrared receiving module adopts FM-6038LM-5AN.

The charging electrode device has a fixed bracket 8, the fixed bracket 8 is fixed on the charging base body 1, the fixed bracket is provided with two charging electrodes 2, the rear ends of the two charging electrodes are provided with a support spring 9, and the front ends of the two charging electrodes are connected to the charging base body (1 ) to match the electrode mounting groove.

The charging electrode includes a positive electrode and a negative electrode, which are placed vertically up and down or horizontally left and right, with a fixed distance between the positive and negative electrodes, and the shape is strip-shaped. The infrared emitting tube 3 and the infrared receiving module 4 are directly above the charging electrode 2 device.

The infrared receiving tube array 13 provided on the vacuum cleaner body 10 includes 8-16 infrared receiving tubes arranged in a semicircle and installed on the collision plate 11 . At the same time, an infrared emitting tube 14 is arranged on the right side of the vacuum cleaner body 10 . The corresponding control circuit is responsible for the signal processing of the infrared transmitting and infrared receiving arrays, including a processor, a signal amplifying circuit, a receiving path selection circuit, a detection circuit, a frequency modulation circuit, and a power amplifying circuit. The processor adopts single-chip microcomputer MEGA64; the signal amplifying circuit adopts the op amp LM358 to form a non-directional amplifier; the receiving route selection circuit is composed of 4051; the detection circuit is composed of LM567; the power amplifying circuit is composed of triode 9013;

On the basis of the above-mentioned device, the docking method of the automatic vacuum cleaner and the charging stand is proposed, which includes the following steps:

1) The charging stand is placed against the wall.

2) When the automatic vacuum cleaner detects that the battery power is too low or the work task is completed, the vacuum cleaner enters the working state of looking for the charging stand: the vacuum cleaner walks against the wall, the infrared emitting tube on the side emits a wake-up signal, and the infrared receiving tube array continuously detects whether there is The infrared signal that the charging stand responds to.

3) When the automatic vacuum cleaner passes in front of the charging stand, the automatic vacuum cleaner wakes up the control circuit on the charging device; the control circuit drives the infrared emission tube, so that the automatic vacuum cleaner receives the characteristic signal and determines the position of the charging stand;

4) After the vacuum cleaner determines the position of the charging base, it automatically rotates the main body, and adjusts the posture according to the characteristic signals detected by the infrared receiving tube array in front of the vacuum cleaner. When the infrared receiving tube in the middle receives the characteristic signal, the vacuum cleaner is facing the charging stand;

5) The automatic vacuum cleaner moves forward until the electrodes on the charging device and the automatic vacuum cleaner are in contact successfully, and the docking is completed at this time; if the docking is not successful, the vacuum cleaner is adjusted to a certain angle left and right, and the above process is repeated until the docking is completed.

Because in the indoor environment, the walls form a closed two-dimensional space. The charging stand is placed close to the wall, that is, on the outer curve of this closed two-dimensional space. In the utility model, the vacuum cleaner walks along the wall, and along the closed curve, the charging base must be found, which ensures smooth docking and charging.

Claims (4)

1. the charging device of an automatic cleaner is characterized in that, it has charging pedestal (1), and the dead ahead is provided with charging electrode device, infrared transmitting tube (3), infrared receiving module (4) in the middle of charging pedestal (1); Be provided with status indicator lamp (5), remote controller socket (6) in charging pedestal (1) both sides, on charging pedestal (1), be provided with control circuit board (7); The circuit of control circuit board is: current rectifying and wave filtering circuit joins with switching tube, charging electrode (2) successively, and processor joins with switching tube, power amplification circuit, infrared receiving module respectively, and power amplification circuit and infrared transmitting tube join.

2. the charging device of a kind of automatic cleaner according to claim 1, it is characterized in that, described charging electrode device, has fixed support (8), fixed support (8) is solid on charging pedestal (1), fixed support is provided with two charging electrodes (2), and two charging electrode rear ends are provided with support spring (9), and two charging electrode front ends match with the electrode mounting groove of charging pedestal (1).

3. the charging device of a kind of automatic cleaner according to claim 1 is characterized in that, described infrared transmitting tube (3), infrared receiving module (4) are directly over charging electrode (2).

4. the charging device of a kind of automatic cleaner according to claim 1 is characterized in that, described charging electrode comprises positive pole and negative pole, is about placement vertically or level to arrange that be maintained fixed spacing between the positive and negative electrode, profile is strip.

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