CN218569879U

CN218569879U - Multistage safety charger

Info

Publication number: CN218569879U
Application number: CN202222870093.6U
Authority: CN
Inventors: 刘威
Original assignee: Dongguan Runzhong Electronic Co ltd
Current assignee: Dongguan Runzhong Electronic Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-03
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a multistage safety charger, relate to charger technical field, including the protection casing, the PCB board, connect the electric plug, the interface charges, be provided with the management module that charges on the PCB board, one-level safety indicator, second grade safety indicator, human induction sensor and light source control module, light source control module has one-level control circuit, second grade control circuit, be provided with the light trap on the protection casing, this design adopts human induction sensor as second grade control circuit's signal trigger control, when the user is close to the charger to getting into human induction trigger distance, human induction sensor response is human and to second grade control circuit's signal input part generation trigger signal, second grade control circuit is opened according to this trigger signal control second grade safety indicator, it is convenient in the use to need not the user, it is more intelligent, and reduce the direct contact of user and the charger of circular telegram, the security is better.

Description

Multistage safety charger

Technical Field

The utility model relates to a charger technical field specifically is a multistage safe charger.

Background

The mobile phone charger is a portable electronic device and a power supply voltage conversion device of an electronic appliance, has the characteristics of small volume and plug and play, is convenient for people to carry and use in daily life, and brings great convenience to our life.

Because some users like to open a little night lamp night, relatively have the sense of security, therefore, the combined product of cell-phone charger and night lamp has appeared on the market, the structure is many as the chinese utility model "have cell-phone charger of night lamp" of patent number 201520588671.4, by power plug (1), charger switch (2), charger circuit (3), charger output port (4), night lamp switch (5), night lamp control circuit (6), night lamp (7) are constituteed, power plug (1) connects charger switch (2) all the way, when closed night lamp switch, just can make night lamp control circuit work, the night lamp is controlled luminous.

Above-mentioned cell-phone charger's night-light only has a luminance usually, if bright with the luminance setting of night-light, then be not convenient for user's sleep, if darker with the luminance setting of night-light, then be not convenient for the user need drink water at night suddenly, go to the action that needs bigger luminance such as lavatory, for this reason, the more advanced charger of partial design still can dispose a adjustting of lighteness button, so that it can also realize increase luminance through pressing adjustting of lighteness button night, be convenient for the user to drink water, go to the action such as lavatory, avoid leading to touching the cup or stumble the condition because of light is darker, the structure is many like the chinese utility model "a travel charger with night-light of adjusting luminance" a little night-light of 201621295522.X, capacitive touch induction device control opening and the adjustment of luminance of little night-light (LED light source) has been adopted, the use only needs to touch the electric capacity induction zone gently with the finger.

Although the above advanced design can meet the requirement of illumination intensity functionally, brightness adjustment requires a user to touch the capacitive sensing area with a hand (part of the capacitive sensing area can directly adopt a brightness adjustment button with low cost), the user needs to pay attention to avoid colliding a charger when stretching his hand, on the other hand needs to find the position of the touch capacitive sensing area (or the brightness adjustment button), and accurate completion of the actions of the two aspects is difficult for the user who is comfortable to sleep, which is not convenient for use, and the intelligence degree needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-stage safety charger comprises a protection shell, a PCB, an electric connecting plug and a charging interface which are assembled in a matched mode, wherein the PCB is arranged in the protection shell, a charging management module for supplying power and outputting to the charging interface is arranged on the PCB, and a primary safety indicator lamp, a secondary safety indicator lamp, a human body induction sensor and a light source control module are further arranged on the PCB; the light source control module is provided with a primary control circuit for controlling the turning on/off of the primary safety indicator lamp and a secondary control circuit for controlling the turning on/off of the secondary safety indicator lamp; the human body induction sensor is connected to the signal input end of the secondary control circuit, the primary safety indicator lamp is connected to the control output end of the primary control circuit, and the secondary safety indicator lamp is connected to the control output end of the secondary control circuit; the protective shell is provided with a light-transmitting opening corresponding to the first-level safety indicator lamp and the second-level safety indicator lamp.

As a further aspect of the present invention: the signal input end of the primary control circuit is connected with a photosensitive control component; the photosensitive control assembly comprises a photosensitive resistor R3 and a resistive load R2 which are mutually connected in series, and the signal input end of the primary control circuit is connected to the voltage division point of the photosensitive resistor R3 and the resistive load R2.

As a further aspect of the present invention: the primary control circuit further comprises a touch switch SW1, and the touch switch SW1 is connected to the positive pole or the negative pole of the primary safety indicator lamp.

As a further aspect of the present invention: the human body induction sensor adopts a pyroelectric infrared sensor, and an induction window corresponding to the human body induction sensor is arranged on the protective shell.

As a further aspect of the present invention: the signal input end of the primary control circuit is connected with a photosensitive control component; the photosensitive control assembly comprises a photosensitive resistor R3 and a resistive load R2 which are mutually connected in series, and the signal input end of the primary control circuit is connected to the voltage division point of the photosensitive resistor R3 and the resistive load R2; the secondary control circuit comprises a processing chip U1, wherein a trigger prohibiting end VC of the processing chip U1 is connected to a voltage division point of a photoresistor R3 and a resistive load R2.

Compared with the prior art, the beneficial effects of the utility model are as follows:

when the electrical appliance is charged by the charger or only the charger is plugged into the energized socket: the primary safety indicator lamp is controlled to be turned on through the primary control circuit, illumination of a first brightness level is conducted, and the primary safety indicator lamp can be used for indicating the current position of a charger and serving as a small night lamp for providing a safety sense for a user; open through second grade control circuit control second grade safety indicator, carry out the illumination of second luminance grade, wherein, the illumination luminance of second luminance grade is greater than the illumination luminance of first luminance grade, can be used as the illumination of charger surrounding environment, be convenient for the user drinks water at night, go to the condition that the higher luminance illumination of needs of lavatory, this design adopts human response sensor as second grade control circuit's signal trigger control, when the user is close to the charger and gets into human response trigger distance, human response sensor response human body and to generating trigger signal to second grade control circuit's signal input part, second grade control circuit opens according to this trigger signal control second grade safety indicator, need not the user and carry out traditional change over switch's pressing, convenient on the use, it is more intelligent, and reduce the direct contact of user and the electrified charger, the security is better.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a left side view of the structure of the present invention;

FIG. 3 is a right side view of the structure of the present invention;

fig. 4 is a schematic circuit diagram of the present invention.

The reference numerals and names in the figures are as follows:

the device comprises a protective shell-1, an electric plug-2, a charging interface-3, a charging management module-4, a primary safety indicator lamp-5, a secondary safety indicator lamp-6, a human body induction sensor-7, a primary control circuit-8, a secondary control circuit-9, a light-transmitting port-10, a photosensitive control component-11 and an induction window-12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a multi-stage safety charger includes a protection housing 1, a PCB, an electrical connector 2, and a charging interface 3, wherein the PCB is disposed in the protection housing 1, and a charging management module 4 is disposed on the PCB for outputting power to the charging interface 3. The PCB is also provided with a primary safety indicator lamp 5, a secondary safety indicator lamp 6, a human body induction sensor 7 and a light source control module; the light source control module is provided with a primary control circuit 8 for controlling the primary safety indicator lamp 5 to be turned on/off and a secondary control circuit 9 for controlling the secondary safety indicator lamp 6 to be turned on/off; the human body induction sensor 7 is connected to the signal input end of the secondary control circuit 9, the primary safety indicator lamp 5 is connected to the control output end of the primary control circuit 8, and the secondary safety indicator lamp 6 is connected to the control output end of the secondary control circuit 9; the protective shell 1 is provided with a light-transmitting opening 10 corresponding to the primary safety indicator lamp 5 and the secondary safety indicator lamp 6.

When the charger is used for charging electrical appliances or only the charger is plugged into a power-on socket:

the primary control circuit 8 controls the primary safety indicator lamp 5 to be turned on, illumination of a first brightness level is carried out, and the primary safety indicator lamp can be used for indicating the current position of the charger and providing a small night lamp for a user to feel safety;

control second grade safety indicator 6 through second grade control circuit 9 and open, carry out the illumination of second luminance grade, wherein, the illumination luminance of second luminance grade is greater than the illumination luminance of first luminance grade, can be used as the illumination of charger surrounding environment, be convenient for the user drinks water at night, go to the condition that the lavatory etc. need the illumination of higher luminance, this design adopts human induction sensor 7 as the signal trigger control of second grade control circuit 9, when the user is close to this charger to getting into human response trigger distance, human induction sensor 7 response human body and to generating trigger signal to the signal input part of second grade control circuit 9, second grade control circuit 9 controls second grade safety indicator 6 according to this trigger signal and opens, need not the user and carry out traditional change over switch's pressing, it is more convenient in the use, it is more intelligent, and reduce the direct contact of user with the circular telegram charger, and the security is better.

Preferably, when the secondary safety indicator lamp 6 is controlled to be turned on by the secondary control circuit 9, the primary safety indicator lamp 5 may be kept in an on state, that is, the illumination of the second brightness level is achieved after the primary safety indicator lamp 5 and the secondary safety indicator lamp 6 are illuminated together, and under the condition that the illumination intensity is met, the design does not need to be specially equipped with the secondary safety indicator lamp with higher power.

Preferably, the human body sensor 7 adopts a pyroelectric infrared sensor, an induction window 12 corresponding to the human body sensor 7 is arranged on the protective shell 1, and a fresnel lens used for enhancing the detection effect can be correspondingly arranged at the position of the induction window 12.

Referring to fig. 4 specifically, in the embodiment of the present invention, the signal input end of the primary control circuit 8 is connected with the photosensitive control assembly 11, the photosensitive control assembly 11 includes the mutual serially connected photosensitive resistor R3 and the resistive load R2, the signal input end of the primary control circuit 8 is connected to the voltage dividing point of the photosensitive resistor R3 and the resistive load R2, the primary safety indicator 5 is opened/closed by the photosensitive control assembly 11 according to the brightness of the environment, and the primary safety indicator 5 can be directly closed in the day-on state to reduce the energy consumption. The photoresistor R3 can be provided with an independent photosensitive port on the protective shell or share the same sensing window with the human body sensing sensor.

Further, the primary control circuit 8 further includes a touch switch SW1, and the touch switch SW1 is connected to the positive electrode or the negative electrode of the primary safety indicator lamp 5. A user can determine whether to use the primary safety indicator lamp 5 through the touch switch SW1 (not shown in fig. 1-3), if the primary safety indicator lamp 5 is needed, the touch switch SW1 is in a triggered (or closed) state, and when the ambient brightness reaches a trigger value, the primary safety indicator lamp 5 can be turned on; if the first-level safety indicator lamp 5 is not needed, the touch switch SW1 is in an off (or disconnected) state, and then even if the ambient brightness reaches a trigger value, the first-level safety indicator lamp 5 is still in the off state, so that various use requirements are met.

Referring to fig. 4 specifically, in the embodiment of the present invention, the signal input end of the primary control circuit 8 is connected to a photosensitive control component 11; the photosensitive control component 11 comprises a photosensitive resistor R3 and a resistive load R2 which are connected in series, and a signal input end of the primary control circuit 8 is connected to a voltage division point of the photosensitive resistor R3 and the resistive load R2. The human body induction sensor 7 adopts a pyroelectric infrared sensor, and an induction window 12 corresponding to the human body induction sensor 7 is formed in the protective shell 1; the secondary control circuit 9 comprises a processing chip U1, wherein a trigger disable terminal VC of the processing chip U1 is connected to a voltage dividing point between the photoresistor R3 and the resistive load R2.

Photosensitive resistance R3 is used for detecting ambient luminosity, the indoor lamp is closed at night, when causing ambient luminosity to change from the high value to the low value, photosensitive resistance R3's resistance value is corresponding to rise, on the one hand be used for triggering and open one-level safety indicator, on the other hand be used for providing unblock trigger signal for processing chip U1, afterwards when the user is close to human induction sensor 7, processing chip U1's control output VO can export the high voltage, cause second grade safety indicator 6 to be opened, second grade safety indicator 6 must be in can be triggered the low value when just can be controlled and open at ambient luminosity, avoid the condition of false triggering to take place.

Further, the primary control circuit 8 further comprises a touch switch SW1, and the touch switch is connected to the anode or the cathode of the primary safety indicator lamp 5, so that various use requirements are met.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A multi-stage safety charger comprises a protection shell, a PCB, an electric connection plug and a charging interface which are assembled in a matched mode, wherein the PCB is arranged in the protection shell, and a charging management module for supplying power and outputting to the charging interface is arranged on the PCB;

the light source control module is provided with a primary control circuit for controlling the turning on/off of the primary safety indicator lamp and a secondary control circuit for controlling the turning on/off of the secondary safety indicator lamp; the human body induction sensor is connected to the signal input end of the secondary control circuit, the primary safety indicator lamp is connected to the control output end of the primary control circuit, and the secondary safety indicator lamp is connected to the control output end of the secondary control circuit;

the protective shell is provided with a light-transmitting opening corresponding to the first-level safety indicator lamp and the second-level safety indicator lamp.

2. The multi-stage safety charger according to claim 1, wherein a photosensitive control component is connected to a signal input terminal of the primary control circuit;

the photosensitive control assembly comprises a photosensitive resistor R3 and a resistive load R2 which are mutually connected in series, and the signal input end of the primary control circuit is connected to the voltage division point of the photosensitive resistor R3 and the resistive load R2.

3. The multi-stage safety charger according to claim 2, wherein the primary control circuit further comprises a touch switch SW1, and the touch switch SW1 is connected to the positive electrode or the negative electrode of the primary safety indicator light.

4. The multi-stage safety charger according to claim 1, wherein the human body sensor is a pyroelectric infrared sensor, and the protection housing is provided with a sensing window corresponding to the human body sensor.

5. The multi-stage safety charger according to claim 4, wherein a photosensitive control component is connected to a signal input terminal of the primary control circuit;

the photosensitive control assembly comprises a photosensitive resistor R3 and a resistive load R2 which are mutually connected in series, and the signal input end of the primary control circuit is connected to the voltage division point of the photosensitive resistor R3 and the resistive load R2;

the secondary control circuit comprises a processing chip U1, wherein a trigger prohibiting end VC of the processing chip U1 is connected to a voltage division point of a photoresistor R3 and a resistive load R2.

6. The multi-stage safety charger according to claim 5, wherein the primary control circuit further comprises a touch switch SW1, and the touch switch is connected to the positive electrode or the negative electrode of the primary safety indicator light.