CN212776896U

CN212776896U - Portable night lamp

Info

Publication number: CN212776896U
Application number: CN202021703179.4U
Authority: CN
Inventors: 彭建政
Original assignee: Zhongshan Tinko Electric Appliance Co ltd
Current assignee: Zhongshan Tinko Electric Appliance Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-03-23
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a portable night-light, including hollow base, the upper end of base is connected with non-light tight lamp shade, be equipped with in the inner chamber that lamp shade and base enclose and be used for luminous lamp plate, be equipped with in the base with lamp plate electric connection's control circuit board, the base is connected with portable frame. The utility model discloses simple structure, it is small, light in weight, power consumptive low, long service life conveniently goes out to carry when satisfying the lighting demand, and the practicality is strong, and market competition is big.

Description

Portable night lamp

[ technical field ]

The utility model relates to a portable night-light.

[ background art ]

Along with the continuous improvement of standard of living, in environments such as family's illumination, field camping, yurt bag, tent, portable night-light is the necessity of night illumination, will conveniently go out to carry when satisfying the illumination demand, how to gradually improve current portable night-light is the technical problem who awaits a urgent need to solve.

The utility model discloses it is based on above problem produces.

[ contents of utility model ]

The utility model discloses a to prior art not enough, provide a novel portable night-light, the utility model discloses conveniently go out to carry when satisfying lighting needs, market competition is big.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a portable night-light, including hollow base, the upper end of base is connected with non-light tight lamp shade, be equipped with in the inner chamber that lamp shade and base enclose and be used for luminous lamp plate, be equipped with in the base with lamp plate electric connection's control circuit board, the base is connected with the hand rack.

According to the portable night lamp, the lithium battery is arranged in the base, the control circuit board is respectively provided with the constant-current constant-voltage charging circuit for charging the lithium battery, the battery protection circuit for protecting the charging and discharging of the lithium battery and the switch control circuit for controlling the on-off of the portable night lamp and the brightness adjustment, and the lamp panel is provided with the LED parallel circuit which is electrically connected with the switch control circuit and emits light after being electrified.

The portable night lamp comprises a base, a charging port for an external power supply to be inserted into is formed in the side face of the base, a charging terminal which is opposite to the charging port and can be electrically connected with the external power supply is arranged on the control circuit board, the constant-current constant-voltage charging circuit comprises a charging chip U1, a pin VCC of the charging chip U1 is electrically connected with one end of a resistor R7 and one end of a capacitor C1 respectively, the other end of the resistor R7 is electrically connected with a pin 1 and a pin 2 of the charging terminal respectively, a pin CHRG of the charging chip U1 is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with an output end pin 4 of the multicolor light-emitting diode, an input end pin 1 and an input end pin 3 of the multicolor light-emitting diode are electrically connected with a pin BAT of a charging chip U1 respectively, an output end pin 2 of the multicolor light-emitting diode is electrically connected with one end of a resistor R9, the pin BAT of the charging chip U1 is electrically connected with one end of the capacitor C2 and the positive electrode of the lithium battery respectively, the pin PROG of the charging chip U1 is electrically connected with one end of the resistor R6, the pin GND of the charging chip U1, the pin 4 and the pin 5 of the charging terminal, the other end of the capacitor C1, the other end of the resistor R6 and the other end of the capacitor C2 are grounded respectively, and a round hole matched with the multicolor light-emitting diode is further formed in the side face of the base.

According to the portable night lamp, the battery protection circuit comprises the protection chip U2, the pin VDD of the protection chip U2 is electrically connected with one end of the resistor R2 and one end of the capacitor C3 respectively, the other end of the resistor R2 is electrically connected with the positive electrode of the lithium battery, the pin GND of the protection chip U2 is electrically connected with the other end of the capacitor C3 and the negative electrode of the lithium battery respectively, and the pin VM1 and the pin VM2 of the protection chip U2 are grounded respectively.

In the portable night light, the inner side wall of the base is connected with the touch switch, the outer side wall of the base is provided with the touch part matched with the touch switch, the switch control circuit comprises a control chip U3, a pin T1 of the control chip U3 is electrically connected with the touch switch, a pin OSC of the control chip U3 is electrically connected with one end of a resistor R3, a pin VDD of the control chip U3 is electrically connected with the anode of the lithium battery, the other end of the resistor R3, one end of a capacitor C4 and one end of a capacitor C6, a pin VC of the control chip U3 is electrically connected with one end of a capacitor C5, a pin GND of the control chip U3, a pin OPT1, an OPT2, the other end of a capacitor C4, the other end of a capacitor C5 and the other end of a capacitor C6 are respectively grounded, a pin SO of the control chip U3 is electrically connected with one end of the resistor R4, and the other end of the resistor R5 are respectively connected with one end of, The grid electrode of the field effect transistor Q1 is electrically connected, the other end of the resistor R5 and the source electrode of the field effect transistor Q1 are respectively grounded, and the drain electrode of the field effect transistor Q1 is electrically connected with the LED parallel circuit.

As above portable night-light, LED parallel circuit is including the lamp pearl that a plurality of mutual parallels, the lamp pearl distributes on the lamp plate, be connected with between lamp plate and the base and be used for radiating aluminium base board, the anodal electric connection with the lithium cell of lamp pearl, the negative pole of lamp pearl is connected with resistance R11's one end and resistance R12's one end electricity respectively, and resistance R11's the other end and resistance R12's the other end is connected with field effect transistor Q1's drain electrode electricity respectively.

According to the portable night lamp, the aluminum substrate is fixedly arranged on the base, the aluminum substrate is connected with the flexible light shield, and the lamp panel is located in an inner cavity formed by the aluminum substrate and the flexible light shield in an enclosing mode.

According to the portable night lamp, the portable frame is the U-shaped flat iron frame, two ends of the portable frame are connected to the base through screws, the two ends of the portable frame are respectively provided with the positioning holes, and the side face of the base is provided with the positioning column which penetrates through the positioning holes to prevent the portable frame from rotating relative to the base.

According to the portable night lamp, the base is internally provided with the first clamping portion and the second clamping portion, the lithium battery is clamped between the first clamping portion and the second clamping portion, the base comprises the base body with the bottom opening and the bottom plate covering the base body, and the bottom of the bottom plate is provided with the plurality of anti-slip pads.

According to the portable night lamp, the base is provided with the plurality of the clamping hooks, and the lower end of the lampshade is provided with the clamping ring which is clamped by the clamping hooks to clamp the lampshade on the base.

Compared with the prior art, the beneficial effects of the utility model are that: simple structure, small, light in weight, power consumptive low, long service life conveniently goes out to carry when satisfying the lighting demand, and the practicality is strong, and market competition is big.

[ description of the drawings ]

Fig. 1 is a perspective view of the present invention;

fig. 2 is a plan view of the back of the present invention;

fig. 3 is an exploded view of the present invention;

fig. 4 is an exploded view in another orientation of the present invention;

fig. 5 is a block diagram of the control circuit of the present invention;

fig. 6 is a circuit schematic of a constant current constant voltage charging circuit and a battery protection circuit;

fig. 7 is a circuit schematic of the switch control circuit and the LED parallel circuit.

[ detailed description of the invention ]

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

As shown in fig. 1 to 4, a portable night lamp comprises a hollow base 1, the upper end of the base 1 is connected with a light-transmitting lamp shade 2, an inner cavity enclosed by the lamp shade 2 and the base 1 is provided with a lamp panel 3 for emitting light, the base 1 is internally provided with a control circuit board 4 electrically connected with the lamp panel 3, and the base 1 is connected with a portable frame 5.

Specifically, the lampshade 2 may be a glass lampshade or a plastic lampshade, and the lampshade 2 may be made of a transparent or semitransparent or opaque material. The utility model discloses can built-in battery or external portable power source power supply when outdoor use, can external charger power supply when indoor fixed position uses. The utility model discloses simple structure, it is small, light in weight, power consumptive low, long service life conveniently goes out to carry when satisfying the lighting demand, and the practicality is strong, and market competition is big.

As shown in fig. 3 to 5, a lithium battery BAT is provided in the base 1, a constant-current constant-voltage charging circuit 41 for charging the lithium battery BAT, a battery protection circuit 42 for protecting charging and discharging of the lithium battery BAT, and a switch control circuit 43 for controlling turning on and off of a portable night light and brightness adjustment are provided on the control circuit board 4, and an LED parallel circuit 31 electrically connected to the switch control circuit 43 and emitting light after being powered on is provided on the lamp panel 3.

Specifically, in this embodiment, the built-in lithium cell BAT power supply of portable night-light, the charger that uses the Micro USB interface can charge, constant current constant voltage charging circuit 41 guarantees that lithium cell BAT can stabilize the charging that lasts, battery protection circuit 42 can avoid lithium cell BAT impaired when the charge-discharge, fine extension lithium cell BAT's life, it can use for a long time to fill portable night-light after the electricity, and portable night-light accessible on-off control circuit 43 realizes switch lamp and many grades of adjustors, fine different lighting environment demands of satisfying, power consumption is low, long service life.

As shown in fig. 3 to 6, a charging port 11 for an external power supply to be inserted into is disposed on a side surface of the base 1, a charging terminal DC1 opposite to the charging port 11 and electrically connected to the external power supply is disposed on the control circuit board 4, the constant-current constant-voltage charging circuit 41 includes a charging chip U1, a pin VCC of the charging chip U1 is electrically connected to one end of a resistor R7 and one end of a capacitor C1, respectively, the other end of a resistor R7 is electrically connected to a pin 1 and a pin 2 of a charging terminal DC1, respectively, a pin CHRG of the charging chip U1 is electrically connected to one end of a resistor R1, the other end of a resistor R1 is electrically connected to an output pin 4 of the multicolor light emitting diode LD, an input pin 1 and an input pin 3 of the multicolor light emitting diode LD are electrically connected to a pin BAT of the charging chip U1, an output pin 2 of the multicolor light emitting diode LD is electrically, the pin CHRGT of the charging chip U1 is electrically connected with the other end of the resistor R9, the pin BAT of the charging chip U1 is electrically connected with one end of the capacitor C2 and the anode of the lithium battery BAT respectively, the pin PROG of the charging chip U1 is electrically connected with one end of the resistor R6, the pin GND of the charging chip U1, the pin 4 and the pin 5 of the charging terminal DC1, the other end of the capacitor C1, the other end of the resistor R6 and the other end of the capacitor C2 are grounded respectively, and a round hole 12 matched with the multicolor light-emitting diode LD is further formed in the side face of the base 1.

Specifically, the charging chip U1 may adopt an AD4057 lithium ion battery charger, and the multicolor light emitting diode LD may be a two-color indicator light for indicating the charging state of the portable night light.

As shown in fig. 5 and 6, the battery protection circuit 42 includes a protection chip U2, a pin VDD of the protection chip U2 is electrically connected to one end of a resistor R2 and one end of a capacitor C3, the other end of the resistor R2 is electrically connected to an anode of a lithium battery BAT, a pin GND of the protection chip U2 is electrically connected to the other end of a capacitor C3 and a cathode of the lithium battery BAT, and a pin VM1 and a pin VM2 of the protection chip U2 are grounded, respectively.

Specifically, the protection chip U2 may be an SD5353A lithium battery charging protection IC, has complete lithium battery protection functions such as overcharge protection, overdischarge protection, overcurrent protection, short-circuit protection, and supporting reverse connection, and has a very small operating current, which can prolong the service life of the battery.

The inner side wall of the base 1 is connected with a touch switch PAD, the outer side wall of the base 1 is provided with a touch part 13 matched with the touch switch PAD, the switch control circuit 43 comprises a control chip U3, a pin T1 of the control chip U3 is electrically connected with the touch switch PAD, a pin OSC of the control chip U3 is electrically connected with one end of a resistor R3, a pin VDD of the control chip U3 is electrically connected with the anode of a lithium battery BAT, the other end of a resistor R3, one end of a capacitor C4 and one end of a capacitor C6 respectively, a pin VC of the control chip U3 is electrically connected with one end of a capacitor C5, a pin GND of the control chip U3, a pin OPT1, a pin OPT2, the other end of a capacitor C4, the other end of the capacitor C5 and the other end of the capacitor C6 are grounded respectively, a pin SO of the control chip U3 is electrically connected with one end of the resistor R4, the other end of the, The gate of the field effect transistor Q1 is electrically connected, the other end of the resistor R5 and the source of the field effect transistor Q1 are grounded, respectively, and the drain of the field effect transistor Q1 is electrically connected to the LED parallel circuit 31.

Specifically, the control chip U3 may be an SGL8022W or HM8022B touch sensing chip, and can implement touch switch control and three-segment brightness adjustment of LED light.

As shown in fig. 3 and 7, the LED parallel circuit 31 includes a plurality of lamp beads connected in parallel, the lamp beads are distributed on the lamp panel 3, an aluminum substrate 6 for heat dissipation is connected between the lamp panel 3 and the base 1, an anode of the lamp beads is electrically connected to an anode of the lithium battery BAT, a cathode of the lamp beads is electrically connected to one end of a resistor R11 and one end of a resistor R12, and the other end of the resistor R11 and the other end of the resistor R12 are electrically connected to a drain of the field effect transistor Q1. A total of x lamp beads are connected in parallel, namely the LEDs 1-LEDx, and the lamp beads are uniformly distributed on the lamp panel 3.

The aluminum substrate 6 is fixedly arranged on the base 1, the aluminum substrate 6 is connected with the light-diffusing cover 7, and the lamp panel 3 is positioned in an inner cavity formed by the aluminum substrate 6 and the light-diffusing cover 7. The light that lamp pearl on the lamp plate 3 sent is more even soft for soft cover 7 makes, and cover 7 passes through threaded connection with aluminium base board 6.

The portable frame 5 is a U-shaped flat iron frame, two ends of the portable frame 5 are connected to the base 1 through screws, positioning holes 51 are respectively formed in two ends of the portable frame 5, and positioning columns 17 which penetrate through the positioning holes 51 to prevent the portable frame 5 from rotating relative to the base 1 are arranged on the side faces of the base 1. The portable frame 5 is fixed on the base 1, so that the use influence caused by the rotation of the portable frame 5 relative to the base 1 is avoided.

Be equipped with first joint portion 14 and second joint portion 15 in the base 1, lithium cell BAT joint is between first joint portion 14 and second joint portion 15, base 1 closes bottom plate 19 on base body 18 including bottom open-ended base body 18 and lid, the bottom of bottom plate 19 is equipped with a plurality of slipmat 8.

The base 1 is provided with a plurality of hooks 16, and the lower end of the lampshade 2 is provided with a snap ring 21 for the hooks 16 to be clamped into so as to clamp the lampshade 2 on the base 1.

The above embodiments are merely preferred embodiments of the present invention, and the present invention may also have other embodiments, such as reasonable combinations of the technical solutions recorded in the embodiments. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims

1. A portable night-light which is characterized in that: including hollow base (1), the upper end of base (1) is connected with non-light tight lamp shade (2), be equipped with in the inner chamber that lamp shade (2) and base (1) enclose and be used for luminous lamp plate (3), be equipped with in base (1) with lamp plate (3) electric connection's control circuit board (4), base (1) is connected with portable frame (5).

2. A portable night-light according to claim 1, wherein: be equipped with lithium cell (BAT) in base (1), be equipped with constant current constant voltage charging circuit (41) that are used for lithium cell (BAT) to charge, be used for protecting battery protection circuit (42) of lithium cell (BAT) charge-discharge and be used for controlling portable night-light switch lamp and brightness control's on-off control circuit (43) on control circuit board (4) respectively, be equipped with on-off control circuit (43) electricity and luminous LED parallel circuit (31) behind the circular telegram on-off control circuit (43) on lamp plate (3).

3. A portable night-light according to claim 2, wherein: the side of the base (1) is provided with a charging port (11) for an external power supply to be inserted, the control circuit board (4) is provided with a charging terminal (DC1) which is opposite to the charging port (11) and can be electrically connected with the external power supply, the constant-current constant-voltage charging circuit (41) comprises a charging chip U1, a pin VCC of the charging chip U1 is respectively and electrically connected with one end of a resistor R7 and one end of a capacitor C1, the other end of a resistor R7 is respectively and electrically connected with a pin 1 and a pin 2 of a charging terminal (DC1), a pin CHRG of the charging chip U1 is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with an output terminal pin LD 4 of a multicolor light-emitting diode (LD), an input terminal pin 1 and an input terminal pin 3 of the multicolor light-emitting diode (LD) are respectively and electrically connected with a pin BAT of a charging chip U1, an output terminal pin, the pin CHRGT of the charging chip U1 is electrically connected with the other end of the resistor R9, the pin BAT of the charging chip U1 is electrically connected with one end of the capacitor C2 and the positive electrode of the lithium Battery (BAT) respectively, the pin PROG of the charging chip U1 is electrically connected with one end of the resistor R6, the pin GND of the charging chip U1, the pin 4 and the pin 5 of the charging terminal (DC1), the other end of the capacitor C1, the other end of the resistor R6 and the other end of the capacitor C2 are grounded respectively, and a round hole (12) matched with the multicolor light-emitting diode (LD) is further formed in the side face of the base (1).

4. A portable night-light according to claim 2, wherein: the battery protection circuit (42) comprises a protection chip U2, a pin VDD of the protection chip U2 is electrically connected with one end of a resistor R2 and one end of a capacitor C3 respectively, the other end of the resistor R2 is electrically connected with an anode of a lithium Battery (BAT), a pin GND of the protection chip U2 is electrically connected with the other end of a capacitor C3 and a cathode of the lithium Battery (BAT) respectively, and a pin VM1 and a pin VM2 of the protection chip U2 are grounded respectively.

5. A portable night-light according to claim 2, wherein: the inner side wall of the base (1) is connected with a touch switch (PAD), the outer side wall of the base (1) is provided with a touch part (13) matched with the touch switch (PAD), the switch control circuit (43) comprises a control chip U3, a pin T1 of the control chip U3 is electrically connected with the touch switch (PAD), a pin OSC of the control chip U3 is electrically connected with one end of a resistor R3, a pin VDD of the control chip U3 is respectively and electrically connected with the anode of a lithium Battery (BAT), the other end of a resistor R3, one end of a capacitor C4 and one end of a capacitor C6, a pin VC of the control chip U3 is electrically connected with one end of a capacitor C5, a GND pin, a pin OPT1, a pin OPT2 of the control chip U3, the other end of a capacitor C4, the other end of a capacitor C5 and the other end of a capacitor C6 are respectively grounded, a pin SO of the control chip U3 is electrically connected with one end, the other end of the resistor R4 is respectively and electrically connected with one end of a resistor R5 and the grid electrode of the field effect transistor Q1, the other end of the resistor R5 and the source electrode of the field effect transistor Q1 are respectively grounded, and the drain electrode of the field effect transistor Q1 is electrically connected with the LED parallel circuit (31).

6. A portable night-light according to claim 2, wherein: LED parallel circuit (31) are including the lamp pearl that a plurality of mutual parallels, the lamp pearl distributes on lamp plate (3), be connected with between lamp plate (3) and base (1) and be used for radiating aluminium base board (6), the anodal electric connection with lithium cell (BAT) of lamp pearl, the negative pole of lamp pearl is connected with the one end of resistance R11 and resistance R12's one end electricity respectively, and resistance R11's the other end and resistance R12's the other end are connected with field effect transistor Q1's drain electrode electricity respectively.

7. A portable night-light according to claim 6, wherein: the aluminum substrate (6) is fixedly arranged on the base (1), the aluminum substrate (6) is connected with a light-diffusing cover (7), and the lamp panel (3) is located in an inner cavity surrounded by the aluminum substrate (6) and the light-diffusing cover (7).

8. A portable night-light according to claim 1, wherein: the portable frame (5) is a U-shaped flat iron frame, the two ends of the portable frame (5) are connected to the base (1) through screws, the two ends of the portable frame (5) are provided with positioning holes (51) respectively, and the side face of the base (1) is provided with positioning columns (17) which penetrate through the positioning holes (51) and prevent the portable frame (5) from rotating relative to the base (1).

9. A portable night-light according to claim 2, wherein: be equipped with first joint portion (14) and second joint portion (15) in base (1), lithium cell (BAT) joint is between first joint portion (14) and second joint portion (15), base (1) is including bottom open-ended base body (18) and lid bottom plate (19) on base body (18), the bottom of bottom plate (19) is equipped with a plurality of slipmat (8).

10. A portable night-light according to claim 1, wherein: the lamp shade is characterized in that the base (1) is provided with a plurality of clamping hooks (16), and the lower end of the lamp shade (2) is provided with a clamping ring (21) for clamping the clamping hooks (16) into the lamp shade (2) to clamp the lamp shade (2) on the base (1).