CN201593685U - Charging flashlight and charging base thereof - Google Patents

Abstract

The utility model discloses a flashlight charges and charging base thereof, flashlight charges, including chargeable body, be provided with on the chargeable body with a pair of charging terminal of charging base looks adaptation, charging terminal is including charging end and ground. The charging base comprises a voltage output terminal, and the voltage output terminal is matched with the charging terminal. The utility model discloses a separation design of charging electric torch and charging base has reduced the size of charging electric torch, has alleviateed the weight of charging electric torch.

Description

A rechargeable flashlight and its charging base

technical field

The utility model belongs to the field of small household appliances, in particular to a detachable charging flashlight and a charging base thereof.

Background technique

Existing rechargeable flashlights are of a great variety and have different performances. Most of the charging part of the existing rechargeable flashlight and the flashlight body part are integrally designed, thereby increasing the weight of the flashlight, increasing the size of the flashlight, and generally only having the function of the flashlight.

Utility model content

The utility model provides a charging flashlight and its charging base, which can reduce the weight and size of the flashlight.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A rechargeable flashlight, comprising a rechargeable body 3, on which a pair of charging terminals 4 matched with a charging base 1 are arranged, and the charging terminals 4 include a charging end and a grounding end.

In one embodiment of the rechargeable flashlight, the rechargeable body 3 is provided with a rechargeable battery pack, a voltage control circuit, and a light emitting circuit, and the charging terminal is connected to the positive pole of the rechargeable battery pack and connected to the The voltage input terminal of the voltage control circuit, the voltage output terminal of the voltage control circuit is connected to the light-emitting circuit; the voltage control circuit includes a photosensitive branch circuit, so that when powered by the charging base 1, there is no light when there is light. Output voltage, when there is no light, output a low voltage to the light emitting circuit; when the voltage control circuit is powered by a rechargeable battery pack, output a high voltage to the light emitting circuit.

In one embodiment of the rechargeable flashlight, the voltage control circuit includes a linkage switch 5, a transistor Q4, a transistor Q6, and a drive circuit, and a pair of terminals of the linkage switch 5 are respectively connected to the positive pole of the rechargeable battery pack and the The emitter of the triode Q4, the other pair of terminals of the linkage switch 5 is connected to the collector of the triode Q4 and the input terminal of the drive circuit, and the charging terminal is connected to the terminal of the triode Q6 through the photosensitive path. base, the emitter of the triode Q6 is grounded, the collector of the triode Q6 is connected to the input terminal of the driving circuit, the output terminal of the driving circuit is connected to the light emitting circuit, and the base of the triode Q4 is connected to the input terminal of the driving circuit through R10 grounded, and the resistor R9 is connected between the collector of the triode Q4 and the cathode of the diode D5 in the charging indication circuit.

In one embodiment of the rechargeable flashlight, the rechargeable body 3 further includes a charging indication circuit arranged between the charging terminal and the positive pole of the rechargeable battery pack.

In one embodiment of the charging flashlight, the charging indication circuit includes a diode D5, a diode D6, a transistor Q2, a transistor Q3, a light-emitting diode LED2, a resistor R7, a resistor R8, and the anode of the diode D5 is connected to the charging The collector of the triode Q2 is connected to the cathode of the diode D5, the emitter of the triode Q2 is connected to the anode of the light-emitting diode LED2 through R5, the cathode of the light-emitting diode LED2 is grounded, and the transistor Q2 The base of the triode Q3 is connected to the collector of the triode Q3 through R6, the emitter of the triode Q3 is connected to the anode of the diode D6 through R7, the base of the triode Q3 is connected to the anode of the diode D6 through R8, and the diode The negative pole of D6 is connected to the positive pole of the rechargeable battery pack.

In one embodiment of the charging base, it includes a step-down current-limiting circuit, a bridge rectifier circuit, a filter circuit, a voltage stabilizing circuit, and an output terminal connected in sequence. The AC power is input from the input end of the step-down current-limiting circuit. The power supply is output from the voltage output terminal 2 of the voltage stabilizing circuit, and the voltage output terminal 2 of the voltage stabilizing circuit is adapted to the charging terminal 4 of the rechargeable flashlight.

In one embodiment of the charging base, it further includes a power indicating circuit, the positive pole of the power indicating circuit is connected between the filter circuit and the voltage stabilizing circuit, and the negative pole of the power indicating circuit is grounded.

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

The utility model separates the charging part of the charging flashlight and independently becomes a charging base compatible with the charging flashlight. Through the cooperation of the charging flashlight and the charging base, the charging function of the charging flashlight can be realized; the separation design of the charging flashlight and the charging base , then reduce the size of the rechargeable torch, and reduce the weight of the rechargeable torch.

Description of drawings

Fig. 1 exemplarily describes the physical diagram of the present utility model; wherein Fig. 1 (a) describes the state when the rechargeable flashlight is placed on the charging base; Fig. 1 (b) describes the state when the rechargeable torch is separated from the charging base;

Fig. 2 exemplarily describes the structural diagram of the utility model; wherein Fig. 2 (a) exemplarily describes the rechargeable base 1 and the electrical output terminal 2; Fig. 2 (b) exemplarily describes the rechargeable body 3 and Charging terminal 4; FIG. 2(c) exemplarily describes the linkage switch 5.

Fig. 3 exemplarily describes the internal circuit diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and in conjunction with specific embodiment the utility model is described in further detail:

As shown in Figure 1, the physical figure of the present utility model, wherein Figure 1 (a) has described the state when charging flashlight is placed on charging base; Figure 1 (b) has described the state when charging flashlight is separated from charging base.

As shown in Fig. 2(a), Fig. 2(b) and Fig. 2(c), in an embodiment of a rechargeable flashlight of the present invention, a rechargeable body 3 is included, and the rechargeable body 3 is provided with a A pair of charging terminals 4 matched with the charging base 1, the charging terminals 4 include a charging terminal and a ground terminal.

As shown in FIG. 3 , the rechargeable body 3 is provided with a rechargeable battery pack BT1 , a light emitting circuit, and a voltage control circuit.

The rechargeable battery pack can be a built-in rechargeable battery pack, or an ordinary rechargeable battery pack.

The light emitting circuit is composed of resistors R13 to R15, light emitting diodes LED3 to light emitting diodes LED5.

Using light-emitting diodes as light-emitting devices can save energy and protect the environment while ensuring brightness.

The voltage control circuit includes a linkage switch, a triode Q4, a photosensitive branch circuit, a triode Q6, and a driving circuit.

As shown in FIG. 3, the voltage control circuit includes a linkage switch 5, a transistor Q4, a transistor Q6, a drive circuit, a resistor R9, a resistor R10, a resistor R11, a resistor R20, and a resistor R22.

The linkage switch 5 includes S1-A-A and S1-A-B, S1-A-A includes a pair of terminals J7, J8, S1-A-B includes a pair of terminals J9, J10, S1-A-A and S1-A-B are ON or OFF at the same time.

Among the pair of terminals of the linkage switch 5, the J7 terminal is connected to the positive pole of the rechargeable battery pack BT1, the J8 terminal is connected to the emitter of the triode Q4, and in the other pair of terminals of the linkage switch 5, the J9 terminal is connected to the triode The collector of Q4 is connected to the emitter of the triode Q5 in the drive circuit with the J10 terminal. The base of the triode Q4 is grounded through the resistor R10, and is connected to the cathode of the diode D7 through the resistor R22. The resistor R9 is connected between the collector of the transistor Q4 and the cathode of the diode D5 in the charge indicating circuit. The anode of diode D7 is connected with the anode of diode D8 in the photosensitive branch. The emitter of the triode Q6 is grounded, the base is grounded through the resistor R11, and the base of the triode Q6 is connected to the positive pole of the photosensitive resistor PD1 in the photosensitive branch through the resistor R20, and the collector of the triode Q6 is synchronized with the linkage switch through the resistor R17 The terminal J10 is connected, and at the same time, connected to the base of the transistor Q7 in the driving circuit through a resistor R18.

The photosensitive branch includes a diode D8, a photoresistor PD1, and a resistor R16, wherein the anode of the diode D8 is grounded through the resistor R16, and the cathode of the diode D8 is connected to the anode of the photoresistor PD1.

The photosensitive resistor PD1 exhibits low impedance when there is light, and high impedance when there is no light.

The drive circuit includes a triode Q5, a triode Q7, a resistor R12, a resistor R17, and a resistor R18, wherein the emitter of the triode Q5 is connected to the J10 terminal of the linkage switch 5, and the base of the triode Q5 is connected to the J10 terminal of the linkage switch 5 through the resistor R12. The terminals are connected, and the base of the transistor Q5 is connected with the collector of the transistor Q7 through the resistor R19. The emitter of the transistor Q7 is grounded, the base of Q7 is connected to the collector of the transistor Q6 through the resistor R18, and the base of the transistor Q7 is also connected to the J10 terminal of the linkage switch 5 through the resistor R18 and the resistor R17.

When the rechargeable flashlight body 3 is inserted into the charging base 1 and the linkage switch is ON, the rechargeable flashlight body 3 is powered by the charging base 1. When there is light, the photodiode PD1 presents a low impedance, and the transistor Q6 is turned on. Q7 is off, transistor Q5 is off, the voltage control circuit does not output voltage, light-emitting diodes LED3 to LED5 are not bright; when there is no light, photosensitive diode PD1 presents high impedance, transistor Q6 is off, transistor Q7 is on, and transistor Q5 is on. After the voltage is stepped down by the resistor R9, a low voltage is output to the light-emitting circuit, and the light-emitting diodes LED3 to LED5 light up slightly to realize the night light function.

When the flashlight rechargeable body 3 is inserted into the charging base 1, only the charging function is realized when the linkage switch is OFF.

When the night light function is realized, the power is directly supplied by the charging base 1 instead of the rechargeable battery pack BT1, which prolongs the service life of the rechargeable battery.

When the flashlight rechargeable body 3 is pulled out from the charging base 1 or the power is cut off, and the power is supplied by the rechargeable battery pack BT1, at this time, the base of the triode Q4 is grounded through the resistor R10, and the triode Q4 is saturated and turned on, and the voltage control circuit outputs The high voltage is applied to the light-emitting circuit, and the light-emitting diodes LED3 to LED5 are highlighted to realize the function of the flashlight. When the linkage switch is ON, the light-emitting diodes LED3 to LED5 are highlighted, and when the linkage switch is OFF, the light-emitting diodes LED3 to LED5 are not bright.

The rechargeable flashlight body 3 can be used as a flashlight for lighting when it is pulled out, and when it is in the charging base 1, it can also be highlighted when there is a power failure, thus realizing the lighting function in emergency situations.

By adopting the above technical bill, when the utility model uses the night light function, the light does not light up when there is light, and the light turns on when there is no light, so as to realize the light-controlled automatic night light function and save energy at the same time. When using the night light function, the light emitting diode group is dimly lit, which can also save energy.

In one embodiment of the rechargeable flashlight, the rechargeable body 3 further includes a charging indication circuit arranged between the charging terminal and the positive pole of the rechargeable battery pack.

The charging indication circuit includes a diode D5, a diode D6, a triode Q2, a triode Q3, a light-emitting diode LED2, a resistor R5, a resistor R6, a resistor R7, and a resistor R8. The anode of the diode D5 is connected to the charging terminal, and the triode The collector of Q2 is connected to the negative pole of the diode D5, and is connected to the collector of the triode Q4 in the voltage control circuit at the same time; the emitter of the triode Q2 is connected to the positive pole of the light-emitting diode LED2 through a resistor R5, so The cathode of the light-emitting diode LED2 is grounded; the base of the triode Q2 is connected to the collector of the triode Q3 through a resistor R6, and the emitter of the triode Q3 is connected to the anode of the diode D6 through a resistor R7. The base of the triode Q3 The pole is connected to the positive pole of the diode D6 through the resistor R8, and the negative pole of the diode D6 is connected to the positive pole of the rechargeable battery pack.

The diode D5 can prevent the battery discharge caused by the accidental short circuit of the exposed metal sheet between the charging end J6 and the ground end J5 after the flashlight body 3 is pulled out from the charging base 1, which can prolong the use time of the flashlight after charging and also extend the charging time. battery life.

When the charging base has AC input and the charging body 3 is inserted on the charging base 1, the light emitting diode LED2 in the charging indicating circuit will emit light. Using the charging indication circuit, the user can easily identify the charging status of the flashlight.

As shown in Figure 3, a charging base 1 includes a step-down current-limiting circuit, a bridge rectifier circuit, a filter circuit, a voltage stabilizing circuit, and an output terminal connected in sequence, and the AC power is input from the input end of the step-down and current-limiting circuit , the DC power is output from the voltage output terminal of the voltage stabilizing circuit, the voltage output terminal 2 of the voltage stabilizing circuit is adapted to the charging terminal 4 of the rechargeable flashlight, and the voltage output terminal 2 includes an output terminal J3 and a ground terminal J4 . In one embodiment of the charging base, it also includes a power indicating circuit.

As shown in Figure 3, the capacitor C1 is connected to the external input terminal J1, the fuse F1 is connected between the capacitor C1 and the positive pole of the diode D4, the resistor R1 is connected across the two ends of the capacitor C1, and the positive pole of the diode D1 is connected to the external input terminal J2. The cathode of diode D2 is connected, the cathode of diode D1 is connected to the cathode of diode D4, and is connected to the anode of electrolytic capacitor C3 at the same time, the anode of diode D2 is connected to the anode of diode D3, and grounded, the cathode of diode D3 is connected to the anode of diode D4; the cathode of electrolytic capacitor C3 is grounded, and the resistor R21 is connected between the negative pole of diode D1 and the ground; the positive pole of light-emitting diode LED1 is connected to the negative pole of diode D1 through resistor R2, and the negative pole of light-emitting diode LED1 is grounded; the collector of transistor Q1 is connected to the positive pole of capacitor C3 through resistor R3, and the transistor Q1 The base of the Zener diode Z1 is grounded through the resistor R4, and the emitter of the triode Q1 is grounded; the negative pole of the Zener diode Z1 is connected to the positive pole of the capacitor C3, and at the same time connected to the output terminal J3, and the positive pole of the Zener diode Z1 is grounded through the resistor R4, and at the same time connected to the positive pole of the transistor Q1 connected to the base.

Among them, fuse F1, capacitor C1, and resistor R1 form a step-down current-limiting circuit; diodes D1 to D4 form a bridge rectifier circuit, capacitor C3, and resistor R21 serve as a filter circuit; resistors R3, resistor R4, Zener diode Z1, and transistor Q1 A voltage stabilizing circuit is formed, the resistor R2 and the light-emitting diode LED1 form a power indicating circuit.

The resistor R1 is the discharge capacitor of the capacitor C1, which can prevent the charge stored on the capacitor C1 from being discharged through the human body when the charging base 1 is disconnected from the external input terminals J1 and J2.

When the charging base has an AC input, the light-emitting diode LED1 glows. Using the power indication circuit, the status is intuitive, and the user can easily identify whether the base is connected to the external power supply.

In one embodiment of the charging base, a varistor MOD1 is connected between the external input terminal J1 and the external input terminal J2. When the external voltage exceeds the threshold value of the varistor, the current flowing through the varistor MOD1 increases to activate To protect the role of subsequent circuits.

The utility model separates the charging base from the charging flashlight. When charging is required, the rechargeable body of the charging flashlight is inserted into the charging base, and the charging function is realized by matching the charging terminal on the rechargeable body with the voltage output terminal on the charging base. When the rechargeable body is inserted into the charging base, the rechargeable torch can be used as a night light, and when the torch body is pulled out from the torch charging base, the rechargeable torch can be used as an ordinary torch. The utility model effectively reduces the weight of the flashlight, reduces the size of the flashlight, and expands the functions of the flashlight.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, but this is just an example for ease of understanding, and it should not be considered that the specific implementation of the utility model is limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, various possible equivalent changes or substitutions can be made without departing from the concept of the utility model, and these changes or substitutions should all belong to the protection scope of the utility model .

Claims (7)

1. a chargeable flashlight comprises chargeable body (3), it is characterized in that, described chargeable body (3) is provided with and the suitable a pair of charging terminal (4) of charging base (1), and described charging terminal (4) comprises charging end and ground end.

2. chargeable flashlight as claimed in claim 1, it is characterized in that, be provided with rechargeable battery set, voltage control circuit, illuminating circuit in the described chargeable body (3), described charging end is connected with the positive pole of described rechargeable battery set, and inserting the voltage input end of described voltage control circuit, the voltage output end of described voltage control circuit connects described illuminating circuit; Comprise photosensitive branch road in the described voltage control circuit, make when being powered by described charging base (1), light time output voltage is not arranged, output LOW voltage is to described illuminating circuit when unglazed; Described voltage control circuit is when being powered by rechargeable battery set, and output HIGH voltage is to described illuminating circuit.

3. chargeable flashlight as claimed in claim 2, it is characterized in that, described voltage control circuit comprises linked switch (5), triode Q4, triode Q6, drive circuit, the pair of terminal of described linked switch (5) connects the emitter stage of described rechargeable battery set positive pole and described triode Q4 respectively, another of described linked switch (5) connects colelctor electrode and the described drive circuit input of described triode Q4 to terminal, described charging end is connected to the base stage of described triode Q6 through described photosensitive road, the grounded emitter of described triode Q6, the colelctor electrode of described triode Q6 inserts the input of described drive circuit, described drive circuit output connects described illuminating circuit, the base stage of described triode Q4 is by R10 ground connection, and resistance R 9 is connected between the negative pole of the colelctor electrode of described triode Q4 and the diode D5 in the charging indication.

4. chargeable flashlight as claimed in claim 2 is characterized in that, described chargeable body (3) also comprises the charging indication that is arranged between charging end and the rechargeable battery set positive pole.

5. chargeable flashlight as claimed in claim 4, it is characterized in that, described charging indication comprises diode D5, diode D6, triode Q2, triode Q3, Light-Emitting Diode LED2, resistance R 7, resistance R 8, the positive pole of described diode D5 links to each other with the charging end, the colelctor electrode of described triode Q2 links to each other with the negative pole of described diode D5, and the emitter stage of described triode Q2 is connected to the positive pole of described LED 2, described LED 2 minus earths by R5, the base stage of described triode Q2 links to each other with the colelctor electrode of described triode Q3 by R6, the emitter stage of described triode Q3 links to each other with the positive pole of diode D6 by R7, and the base stage of described triode Q3 links to each other with the positive pole of diode D6 by R8, and the negative pole of described diode D6 links to each other with rechargeable battery set is anodal.

6. charging base, it is characterized in that, comprise the step-down current-limiting circuit, bridge rectifier, filter circuit, the mu balanced circuit that connect successively, lead-out terminal, AC power is imported from described step-down current-limiting circuit input, dc source is from voltage output end (2) output of described mu balanced circuit, and voltage output end (2) of described mu balanced circuit is suitable with the charging terminal (4) of chargeable flashlight.

7. a kind of charging base as claimed in claim 6 is characterized in that, also comprises power indicating circuit, and the positive pole of described power indicating circuit is connected between filter circuit and the mu balanced circuit, described power indicating circuit minus earth.

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