CN220965219U

CN220965219U - Lamp effect control circuit of electronic equipment

Info

Publication number: CN220965219U
Application number: CN202322147499.6U
Authority: CN
Inventors: 田礼坤
Original assignee: Shenzhen Useer Robot Co Ltd
Current assignee: Shenzhen Useer Robot Co Ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-05-14
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a lamp effect control circuit of electronic equipment, which comprises: a plurality of LED lamps, a driving chip and a communication chip; the output end of the driving chip is electrically connected with the plurality of LED lamps and is used for outputting driving signals to the LED lamps so that the plurality of LED lamps form display patterns; the communication chip is electrically connected with the driving chip and is used for sending the graphic information of the multi-frame display graphic to the driving chip; the driving chip is also used for controlling the plurality of LED lamps to continuously display a plurality of frames of display patterns so as to form a lamp effect state; and the light effect states are set in one-to-one correspondence with the working states of the electronic equipment. The technical scheme provided by the utility model can intuitively indicate the working state of the electronic equipment through the lamp effect.

Description

Lamp effect control circuit of electronic equipment

Technical Field

The present utility model relates to the field of display technologies, and in particular, to a light efficiency control circuit of an electronic device.

Background

With the improvement of living standard, electronic equipment such as floor sweeping machines and floor washing machines are popular because of simple operation, high automation degree and convenient use, and more people walk into life and work.

The electronic device is generally provided with keys for realizing various working states, for example, for a sweeper, the working states such as sweeping, charging and cleaning can be realized through the keys; for the broken wall machine, the working states of stirring, stopping and the like can be realized through keys. Although the keys can realize various working states, people cannot recognize and distinguish the current state of the electronic equipment in time.

Disclosure of utility model

The embodiment of the utility model provides a lamp effect control circuit of electronic equipment, which is used for intuitively indicating the working state of the electronic equipment through the lamp effect.

The embodiment of the utility model provides a lamp effect control circuit of electronic equipment, which comprises the following components: a plurality of LED lamps, a driving chip and a communication chip;

The output end of the driving chip is electrically connected with the plurality of LED lamps and is used for outputting driving signals to the LED lamps so that the plurality of LED lamps form display patterns; the communication chip is electrically connected with the driving chip and is used for sending the graphic information of the multi-frame display graphic to the driving chip;

The driving chip is also used for controlling the plurality of LED lamps to continuously display a plurality of frames of display patterns so as to form a lamp effect state; and the light effect states are set in one-to-one correspondence with the working states of the electronic equipment.

In the utility model, the display lamp is arranged on the electronic equipment such as the sweeper and the like, and the lamp effect control circuit is correspondingly arranged. The lamp effect control circuit comprises a plurality of LED lamps, a driving chip and a communication chip, wherein the driving chip is used for connecting the LED lamps, so that the LED lamps emit light to form display patterns, the communication chip is used for outputting the pattern information of the display patterns to the driving chip, so that the driving chip drives the LED lamps, when the driving chip controls the LEDs and the like to continuously display a plurality of frames of the display patterns, the LED lamps form dynamic lamp effect states, each lamp effect state is used for indicating the corresponding working state of the electronic equipment, the user can intuitively and remarkably and quickly acquire the working state of the electronic equipment, and the visual effect can be increased.

Drawings

Fig. 1 is a schematic structural diagram of a light effect control circuit of an electronic device according to an embodiment of the present utility model;

fig. 2 is a schematic layout diagram of an LED lamp according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a driving chip according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

With the increase of the functions of the sweeper, such as mopping, water shortage reminding and the like, the sweeper has a plurality of state modes. However, because the user is not obviously indicated by the action or the voice action of the sweeper in part of the scenes, the utility model sets corresponding different light effect states for indication according to different working states. For example, if the sweeper is in a water shortage state, the light effect state is a horse race display state, and the dynamic and flowing light effect can intuitively prompt a user so as to facilitate the user to add water in time.

The output end of the driving chip is electrically connected with the plurality of LED lamps and is used for outputting driving signals to the LED lamps so as to enable the plurality of LED lamps to form display patterns; the communication chip is electrically connected with the driving chip and is used for sending graphic information of multi-frame display graphics to the driving chip;

The driving chip is also used for controlling the plurality of LED lamps to continuously display multi-frame display graphics so as to form a lamp effect state; the lamp effect states are set in one-to-one correspondence with the working states of the electronic equipment.

In the embodiment of the utility model, the display lamp is arranged on the electronic equipment such as the sweeper and the like, and the lamp effect control circuit is correspondingly arranged. The lamp effect control circuit comprises a plurality of LED lamps, a driving chip and a communication chip, wherein the driving chip is used for connecting the LED lamps, so that the LED lamps emit light to form display patterns, the communication chip is used for outputting the pattern information of the display patterns to the driving chip, so that the driving chip drives the LED lamps, when the driving chip controls the LEDs and the like to continuously display a plurality of frames of the display patterns, the LED lamps form dynamic lamp effect states, each lamp effect state is used for indicating the corresponding working state of the electronic equipment, the user can intuitively and remarkably and quickly acquire the working state of the electronic equipment, and the visual effect can be increased.

The foregoing is the core idea of the present utility model, and the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without making any inventive effort are intended to fall within the scope of the present utility model.

Fig. 1 is a schematic structural diagram of a light efficiency control circuit of an electronic device according to an embodiment of the present utility model, where, as shown in fig. 1, the light efficiency control circuit of the electronic device includes a plurality of LED lamps 11, a driving chip 12, and a communication chip 13. The plurality of LED lamps 11 may form one or more rows, or may be arranged in a specific pattern, so that the plurality of LED lamps 11 may form a more diverse display pattern. Alternatively, the plurality of LED lamps may be arranged in a matrix, so that a display pattern with higher resolution and more complex pattern is displayed. As shown in fig. 2, fig. 2 is a schematic layout diagram of an LED lamp according to an embodiment of the present utility model. Fig. 2 shows the LED lamps 11 (D1 to D13), and the color of the LED lamps 11 may be WHITE (LED-WHITE) as shown in fig. 2, may be other colors, or may contain a plurality of colors at the same time, which is not particularly limited in this embodiment. The driving chip 12 can drive each LED lamp 11, so that the LED lamp array forms a display pattern, and when the driving chip 12 drives the LED lamp array to continuously display a plurality of frames of display patterns, the LED lamp array forms a lamp effect state. The communication chip 13 can transmit graphic information of a display graphic of a plurality of frames to the driving chip 12 through the communication interface, so that the driving chip 12 can generate a driving signal for driving the LED lamp 11 by the graphic information. It should be noted that the light effect states and the working states of the electronic equipment are set in one-to-one correspondence, that is, each light effect state can indicate one working state of the electronic equipment. The lamp effect state can intuitively indicate the corresponding working state and improve the visual effect. In addition, the obvious light effect state can also prompt the user of the change of the working state. For example, if the light effect state corresponding to the power failure state of the electronic device is the horse race display state, if the LED lamp 11 of the equivalent control circuit suddenly displays the horse race display state from the off state, the user can quickly learn the power failure condition of the electronic device.

Alternatively, the driving chip 12 may be used to individually control the lighting and turning off of each LED lamp 11. With continued reference to fig. 2, in fig. 2, the LED lamp array is controlled by terminals CA 1-CA 6. At least one of the positive and negative poles of each two LED lamps 11 is different. Illustratively, the positive electrode of the LED lamp D1 is connected to CA2, and the negative electrode is connected to CA1; the positive electrode of the LED lamp D2 is connected with the CA3, the negative electrode of the LED lamp D2 is connected with the CA1, and the LED lamps D1 and D2 can be controlled independently, so that the LED lamp array can display the display graph under any resolution, more lamp effect states can be displayed, and visual experience is improved.

Alternatively, the driving chip 12 may be a constant current driving chip. Compared with the traditional non-constant current LED driving chip, the constant current driving circuit has obvious advantages, does not need to connect resistors in series on LEDs, does not influence the brightness of the LEDs within the rated working voltage range due to the change of power supply voltage, can ensure that the brightness of an LED panel is uniform, has high display consistency when a plurality of LEDs are used in parallel, and has a higher lamp efficiency state.

Optionally, the light effect state may include at least one of: horse race display state, breath display state, blinking display state, still picture display state, and countdown picture display state; the operating state of the electronic device may include at least one of: a charging state, a standby state, a start-up state, a power failure state and a fault state. The electronic device may be a household appliance such as a refrigerator, a wall breaking machine, a floor sweeping machine, and the like, where the household appliance has a charging state, a standby state, a start-up state, a power failure state, a fault state, and the like, and each working state may be indicated by a light effect state, for example, a standby state, and may be indicated by a still picture display state. Optionally, the setting of the light effect state may be performed according to the emergency degree of the working state of the electronic device. For example, the standby state generally does not require an electronic device, and can be indicated by a still picture display state, for example, the LEDs are controlled to be normally on, or a certain display pattern is formed to be normally on; the state of lack of electricity is important, the user needs to be prompted to charge in time, the user can be prompted through the horse race display state, the flowing display graph can draw attention of the user, the electronic equipment can be charged as soon as possible, and in the charging process, if the electric quantity of the electronic equipment is not full, the breathing display state can be displayed, so that the user can not stop charging; if the electronic device is in a failure state, the electronic device is displayed in a blinking display state.

It should be noted that as the functions of the electronic devices are increased, the LED lamp array is increased, and multiple LED lamp effect states can be set in the same lamp effect state. For example, for the breath display state, the breath display state may be formed by different display patterns, and the two breath display states may be different light effect states, so that the variety of the light effect states is greatly improved to indicate more working states.

Optionally, the electronic device is a sweeper. Optionally, the working state of the sweeper may further include at least one of the following: a mopping state, a sweeping state, a cleaning state, a water shortage state and a preheating state. According to the embodiment, more light effect states can be set to indicate the working states, and the user experience is improved.

As shown in fig. 3, fig. 3 is a schematic structural diagram of a driving chip according to an embodiment of the present utility model, and optionally, the driving chip may include: a PWM register (not shown in fig. 3); the driving chip 12 is provided with a plurality of output terminals (CA 1 to CA9, CB1 to CB 6); the PWM register may control the duty cycle of the drive signal at the output to adjust the display brightness of each LED lamp. When the display of the light effect state is performed, the driving chip 12 adjusts the display brightness of each LED lamp in a PWM adjustment manner, so as to obtain a richer light effect state, for example, when the display of the breathing display state is performed, the driving chip needs to perform PWM register to adjust the display brightness of the LED lamp.

Optionally, with continued reference to fig. 3, the driver chip 12 may include: an interrupt signal input terminal INTB; the driving chip 12 is used for controlling the LED lamp to be turned off through the driving signal after the set number of times of the lamp effect state is circularly played after the interrupt signal is accessed to the interrupt signal input end INTB. When the user does not need to display the lamp effect state, the driving chip 12 can be controlled to turn off the LED lamp array through the interrupt signal input end INTB.

As shown in fig. 3, optionally, the driving chip may further include: a global current control terminal R_EXT; the driving chip 12 is used for controlling the maximum value of the driving signal output by the output terminal according to the current control signal input by the global current control terminal R_EXT. The maximum brightness of each LED lamp can be controlled through the global current control terminal R_EXT. In this embodiment, the maximum driving signal iled=64.7/r_ext, and the signal of the global current control terminal r_ext can be adjusted by controlling the resistor R4, so as to adjust the maximum driving signal Iled.

Optionally, the driving chip may further include: a hardware shutdown end SDB; the driving chip 12 is configured to stop the output terminal from outputting the driving signal after receiving the hardware shutdown signal input from the hardware shutdown terminal. When the driving chip 12 fails, the hardware shutdown end SDB can forcedly shut down the driving chip, so as to ensure the safety of the driving chip.

In addition, the driving chip 12 may be a dot matrix LED driving controller; the operating voltage may be in the range of 2.7-5.5V; the communication configuration may be performed through an I2C communication interface, and as shown in fig. 3, graphic information of a graphic displayed by the communication chip 13 is received through I2C (interfaces SCL and SDA). In the embodiment, the driving chip can drive a dot matrix formed by 144 monochromatic LED lamps, and can independently control the switch of each LED lamp and linearly adjust the light of 256 steps. The driving chip 12 of this embodiment can store the graphic information of the 8-frame display graphic transmitted by the communication chip 13.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. A lamp efficiency control circuit of an electronic device, comprising: a plurality of LED lamps, a driving chip and a communication chip;

2. The lighting control circuit of the electronic device of claim 1, wherein the driver chip is configured to individually control the lighting and turning off of each LED lamp.

3. The lighting control circuit of an electronic device as defined in claim 1, wherein said driver chip is a constant current driver chip.

4. The lighting control circuit of the electronic device of claim 1, wherein the plurality of LED lamps are arranged in a matrix.

5. The lighting control circuit of the electronic device of claim 1, wherein the driver chip comprises: a PWM register;

The driving chip is provided with a plurality of output ends; the PWM register can control the duty ratio of the driving signal of the output end so as to adjust the display brightness of each LED lamp.

6. The lighting control circuit of the electronic device of claim 1, wherein the driver chip comprises: an interrupt signal input terminal; the driving chip is used for controlling the LED lamp to be turned off through the driving signal after the lamp effect state is circularly played for set times after the interrupt signal is accessed to the interrupt signal input end.

7. The light efficiency control circuit of an electronic device of claim 1, wherein the driver chip further comprises: a global current control terminal;

The driving chip is used for controlling the maximum value of the driving signal output by the output end according to the current control signal input by the global current control end.

8. The lighting control circuit of an electronic device of claim 1, wherein the electronic device is a sweeper.