Sliding speed regulation circuit of wireless dust collector

Abstract

The utility model discloses a sliding speed regulation circuit for a wireless dust collector, which relates to the technical field of electric control of dust collectors and comprises a power supply module and a main circuit board, an output end of the power supply module is electrically connected with an input end of the main circuit board, and a plurality of protective resistors are arranged in the main circuit board. The touch control module is arranged, the eighth pin to the eleventh pin of the touch single-chip microcomputer in the touch control module are electrically connected with the first node to the fourth node of the touch sliding strip to serve as a low gear to a high gear of the wireless dust collector, and meanwhile the touch single-chip microcomputer can read touch parameters of each copper foil wire area on the touch sliding strip through special software. Parameters are imported into a software program to achieve sliding speed regulation, the touch sliding strip can achieve speed regulation only through touch sliding, the service life is long, the touch sliding strip is not prone to damage, meanwhile, a circuit of the touch sliding strip can be designed according to requirements, and the speed regulation requirement of a user is easily met.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaner electric control, in particular to a sliding speed regulation circuit for a wireless vacuum cleaner. Background Art

[0002] Cordless vacuum cleaners are common cleaning tools in modern life, and their convenience and efficiency are highly favored by consumers. The speed control circuit is a technology that can adjust the power of the vacuum cleaner according to user needs, and adjusts the suction force of the vacuum cleaner by adjusting the speed of the motor. The principle behind this circuit is to change the voltage or frequency in the motor drive circuit according to the position of the sliding rheostat to control the speed of the motor. Applied to cordless vacuum cleaners, the sliding speed control circuit allows users to adjust the power of the vacuum cleaner according to different cleaning scenarios, which can save energy and improve cleaning efficiency. In addition, the sliding speed control circuit can also improve the user experience of the vacuum cleaner, making the user more relaxed and comfortable during the cleaning process.

[0003] Existing speed regulation circuits for cordless vacuum cleaners mostly use physical switch devices, such as mechanical switches (including push button switches, toggle switches, knob switches, etc.), electromagnetic switches, etc., which are controlled by manual operation or external conditions to control the on and off of the circuit to adjust the speed of the cordless vacuum cleaner. However, the service life of such switch devices is easily affected by the material, and it is difficult to repair after damage, which easily causes waste of resources. Moreover, it is usually a single-point speed regulation, which is difficult to meet the speed regulation needs of users. Therefore, it is necessary to provide a cordless vacuum cleaner sliding speed regulation circuit to solve the above-mentioned problems. Utility Model Content

[0004] In order to solve the above technical problems, a circuit for sliding speed regulation of a cordless vacuum cleaner is provided. This technical solution solves the problems mentioned in the above background technology that the service life of the existing switching devices is easily affected by the materials, it is difficult to repair after damage, and it is easy to cause waste of resources, and it is usually a single-point speed regulation, which is difficult to meet the speed regulation needs of users.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A circuit for sliding speed regulation of a cordless vacuum cleaner, comprising:

[0007] A power supply module, used for supplying electric energy to the circuit, the power supply module comprising a lithium battery pack;

[0008] A main circuit board, wherein the output end of the power supply module is electrically connected to the input end of the main circuit board, and a plurality of protective resistors are arranged inside the main circuit board;

[0009] A touch control module is disposed inside the main circuit board, and the touch control module includes a touch slider and a touch control single chip microcomputer;

[0010] A connection module, wherein an input end of the connection module is electrically connected to an output end of the touch control module, and the connection module comprises a first connector and a second connector;

[0011] Among them, the first pin of the touch-controlled microcontroller is electrically connected to the output end of the power supply module, and the eighth pin, ninth pin, tenth pin and eleventh pin of the touch-controlled microcontroller are electrically connected to the first resistor, the second resistor, the third resistor and the fourth resistor respectively, and the third resistor, the second resistor, the first resistor and the fourth resistor are electrically connected to the first node, the second node, the third node and the fourth node of the touch slider at one end away from the touch-controlled microcontroller, respectively, as the low-end to high-end of the cordless vacuum cleaner.

[0012] In a preferred embodiment, the fifth pin of the touch-control microcontroller is electrically connected to the second pin of the second connector, and the sixth pin of the touch-control microcontroller is electrically connected to the first pin of the second connector.

[0013] In a preferred embodiment, the seventh pin of the touch-control microcontroller is electrically connected to the second pin of the first connector.

[0014] In a preferred embodiment, the first pin of the first connector is connected to the output end of the power supply module, and the third pin of the first connector is grounded.

[0015] In a preferred embodiment, the third pin of the second connector is grounded, and the fourth pin of the second connector is electrically connected to the output end of the power supply module.

[0016] In a preferred embodiment, the first pin of the touch-control microcontroller is electrically connected to the first capacitor and the second capacitor at the same time, the second pin of the touch-control microcontroller is electrically connected to one end of the third capacitor, and the first capacitor, the second capacitor and the third capacitor are all grounded at one end away from the touch-control microcontroller.

[0017] In a preferred embodiment, the third pin of the touch-control microcontroller is grounded, and the fourteenth to twentieth pins of the touch-control microcontroller are all connected in series with a protection resistor and are electrically connected to the anode of a light-emitting diode.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] In a sliding speed regulation circuit of a cordless vacuum cleaner proposed in the present invention, a touch module is provided, and the eighth pin, the ninth pin, the tenth pin and the eleventh pin of the touch microcontroller in the touch module are electrically connected to the first node, the second node, the third node and the fourth node of the touch slider, as the low-speed to high-speed of the cordless vacuum cleaner. At the same time, the touch microcontroller can read the touch parameters of each copper foil line area on the touch slider through special software, and import the parameters into the software program to realize sliding speed regulation. The touch slider can realize speed regulation only by touch sliding, has a long service life, is not easy to be damaged, and the circuit of the touch slider can be designed according to the needs, which is easy to meet the speed regulation needs of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a circuit diagram of the utility model;

[0021] Figure 2 This is a circuit diagram of the main control module in the present utility model;

[0022] Figure 3 is a circuit diagram of the first connector in the utility model;

[0023] Figure 4 is a circuit diagram of the second connector in the utility model; DETAILED DESCRIPTION

[0024] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0025] Reference Figure 1-4 As shown, a circuit for sliding speed regulation of a cordless vacuum cleaner comprises:

[0026] A power supply module, used for supplying electric energy to the circuit, the power supply module includes a lithium battery pack;

[0027] The main circuit board, the output end of the power supply module is electrically connected to the input end of the main circuit board, and a plurality of protection resistors are arranged inside the main circuit board;

[0028] A touch control module is provided inside the main circuit board, and the touch control module includes a touch slider and a touch control microcontroller U1;

[0029] A connection module, the input end of the connection module is electrically connected to the output end of the touch control module, and the connection module includes a first connector J1 and a second connector J2;

[0030] Among them, the first pin VDD of the touch microcontroller U1 is electrically connected to the output end of the power supply module, and the eighth pin TK12, the ninth pin TK11, the tenth pin TK10 and the eleventh pin TK9 of the touch microcontroller U1 are electrically connected to the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 respectively, and the third resistor R3, the second resistor R2, the first resistor R1 and the fourth resistor R4 are electrically connected to the first node TP1, the second node TP2, the third node TP3 and the fourth node TP4 of the touch slider at one end away from the touch microcontroller U1. As a low-end to high-end cordless vacuum cleaner, the touch microcontroller U1 adopts the SC92F8372 model, which is an enhanced ultra-high-speed 1T The 8051 core is an industrial-grade Flash microcontroller with integrated touch button function. The instruction system is fully compatible with the traditional 8051 product series. It has a built-in 16-channel low-power dual-mode capacitive touch circuit. The touch slider usually uses an FPC soft board to ensure the touch sensitivity. The touch microcontroller U1 uses special software to read the touch parameters of each copper foil area on the FPC soft board. The sliding speed can be adjusted by importing the parameters into the software program. The FPC touch slider soft board needs to design different circuits for different models and connect to the channel of the touch microcontroller U1 for identification.

[0031] Further, see Figure 1 and Figure 4 As shown, the fifth pin TCK of the touch microcontroller U1 is electrically connected to the second pin 2 of the second connector J2, the sixth pin TDIO of the touch microcontroller U1 is electrically connected to the first pin 1 of the second connector J2, the third pin 3 of the second connector J2 is grounded, and the fourth pin 4 of the second connector J2 is electrically connected to the output end of the power supply module.

[0032] Further, see Figure 1 and Figure 3 The seventh pin TK13 of the touch microcontroller U1 is electrically connected to the second pin 2 of the first connector J1 , the first pin 1 of the first connector J1 is connected to the output end of the power supply module, and the third pin 3 of the first connector J1 is grounded.

[0033] Further, see Figure 1As shown, the first pin VDD of the touch microcontroller U1 is electrically connected to the first capacitor C1 and the second capacitor C2 at the same time, the second pin CMOD of the touch microcontroller U1 is electrically connected to one end of the third capacitor C3, the first capacitor C1, the second capacitor C2 and the third capacitor C3 are all grounded at one end away from the touch microcontroller U1, the capacitance of the first capacitor C1, the second capacitor C2 and the third capacitor C3 are all 0.1μF, this part of the circuit is used for power supply filtering, the first capacitor C1 to the third capacitor C3 can absorb noise and interference on the power line, ensure the stability of the power supply when the touch microcontroller U1 is working, and provide clean power to the microcontroller.

[0034] Further, see Figure 1 As shown, the third pin VSS of the touch microcontroller U1 is grounded, and the fourteenth pin TK6 to the twentieth pin TK0 of the touch microcontroller U1 are all connected in series with a protection resistor and are electrically connected to the anode of an LED, the fourteenth pin TK6 of the touch microcontroller U1 is connected in series with a fifth resistor R5 and is electrically connected to the anode of the first LED LD1, the fifteenth pin TK5 of the touch microcontroller U1 is connected in series with a sixth resistor R6 and is electrically connected to the anode of the second LED LD2, the sixteenth pin TK4 of the touch microcontroller U1 is connected in series with a seventh resistor R7 and is electrically connected to the anode of the third LED LD3, and the touch microcontroller U1 The seventeenth pin TK3 is connected in series with the eighth resistor R8 and is electrically connected to the anode of the fourth light-emitting diode LD4. The eighteenth pin TK2 of the touch microcontroller U1 is connected in series with the ninth resistor R9 and is electrically connected to the fifth light-emitting diode LD5. The nineteenth pin TK1 of the touch microcontroller U1 is connected in series with the tenth resistor R10 and is electrically connected to the sixth light-emitting diode LD6. The twentieth pin TK0 of the touch microcontroller U1 is connected in series with the eleventh resistor R11 and is electrically connected to the seventh light-emitting diode LD7. The resistance values ​​of the first resistor R1 to the eleventh resistor R11 are all 1k, and the cathodes of the first light-emitting diode LD1 to the seventh light-emitting diode LD7 are all grounded.

[0035] The advantages of the utility model are as follows: by using an FPC soft board as a touch slider, the FPC soft board can be bent and folded to adapt to complex spatial layouts and curved surface designs. This flexibility gives the FPC soft board an advantage in mobile or curved environments where different components need to be connected. FPC soft boards are thinner than traditional rigid printed circuit boards, which allows them to be easily embedded in compact devices and reduces the thickness and weight of the overall product. The circuit design of the FPC soft board can be made complex, thereby further expanding the changes in touch gestures and providing better results. The utility model mainly uses four channels as the sliding speed regulation channels of the cordless vacuum cleaner, which correspond to the four areas of the touch slider respectively. The touch debugging software is used to adjust the different pins of the touch microcontroller U1 to obtain the touch parameter values ​​corresponding to the four areas, and then the two-by-two combinations in the software logic can achieve the sliding speed regulation effect.

[0036] It is worth noting that the single-chip microcomputer model and component selection in this embodiment are only used to implement this embodiment, and they are not used as limitations on the utility model. The above shows and describes the basic principles, main features and advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description only describe the principles of the utility model. The utility model will have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the utility model to be protected. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A circuit for sliding speed regulation of a cordless vacuum cleaner, characterized in that: include: A power supply module, used for supplying electric energy to the circuit, the power supply module comprising a lithium battery pack; A main circuit board, wherein the output end of the power supply module is electrically connected to the input end of the main circuit board, and a plurality of protective resistors are arranged inside the main circuit board; A touch control module is disposed inside the main circuit board, and the touch control module includes a touch slider and a touch control single chip microcomputer; A connection module, wherein an input end of the connection module is electrically connected to an output end of the touch control module, and the connection module comprises a first connector and a second connector; Among them, the first pin of the touch-controlled microcontroller is electrically connected to the output end of the power supply module, and the eighth pin, ninth pin, tenth pin and eleventh pin of the touch-controlled microcontroller are electrically connected to the first resistor, the second resistor, the third resistor and the fourth resistor respectively, and the third resistor, the second resistor, the first resistor and the fourth resistor are electrically connected to the first node, the second node, the third node and the fourth node of the touch slider at one end away from the touch-controlled microcontroller, respectively, as the low-end to high-end of the cordless vacuum cleaner.

2. The sliding speed regulation circuit of a cordless vacuum cleaner according to claim 1, characterized in that: The fifth pin of the touch-control single-chip computer is electrically connected to the second pin of the second connector, and the sixth pin of the touch-control single-chip computer is electrically connected to the first pin of the second connector.

3. The sliding speed regulation circuit of a cordless vacuum cleaner according to claim 1, characterized in that: The seventh pin of the touch-control microcontroller is electrically connected to the second pin of the first connector.

4. The sliding speed regulation circuit of a cordless vacuum cleaner according to claim 1, characterized in that: The first pin of the first connector is connected to the output end of the power supply module, and the third pin of the first connector is grounded.

5. The sliding speed regulation circuit of a cordless vacuum cleaner according to claim 1, characterized in that: The third pin of the second connector is grounded, and the fourth pin of the second connector is electrically connected to the output end of the power supply module.

6. The sliding speed regulation circuit of a cordless vacuum cleaner according to claim 1, characterized in that: The first pin of the touch microcontroller is electrically connected to the first capacitor and the second capacitor at the same time, the second pin of the touch microcontroller is electrically connected to one end of the third capacitor, and the first capacitor, the second capacitor and the third capacitor are all grounded at one end away from the touch microcontroller.

7. The sliding speed regulation circuit of a cordless vacuum cleaner according to claim 1, characterized in that: The third pin of the touch-control single-chip computer is grounded, and the fourteenth to twentieth pins of the touch-control single-chip computer are all connected in series with a protection resistor and are electrically connected to an anode of a light-emitting diode.

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