Multifunctional power bank

Abstract

The utility model discloses a multifunctional power bank, and belongs to the technical field of mobile power supplies. The multifunctional power bank comprises a shell, a battery pack, a charging and discharging control circuit and a laser driving circuit are arranged in the shell, a cigarette lighting opening and a cigarette lighting cavity are formed in the shell, a semiconductor laser is arranged in the cigarette lighting cavity, window glass is arranged between the semiconductor laser and the cigarette lighting opening, and a laser pressing switch is arranged on the shell; the battery pack is electrically connected with the charging and discharging control circuit, the charging and discharging control circuit is electrically connected with the laser pressing switch, the laser pressing switch is electrically connected with the laser driving circuit, and the laser driving circuit is electrically connected with the semiconductor laser; the charging and discharging circuit comprises a mobile power supply charging and discharging chip, and the mobile power supply charging and discharging chip is electrically connected with the charging and discharging circuit and a state lamp display circuit. Stable operation of the semiconductor laser can be guaranteed, and the problem that an existing laser cigarette lighter integrated on a power bank is poor in operation stability is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile power supplies, in particular to a multifunctional charging treasure. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] With the advancement of technology, electronic devices such as smartphones and tablets are becoming increasingly important in our daily lives. To meet users' needs for charging these devices, portable power banks have also seen rapid growth. Furthermore, to meet users' diverse daily needs, portable power banks are now equipped with integrated cigarette lighters, providing convenient cigarette-lighting functionality.

[0004] However, most existing portable power banks have integrated resistor-type cigarette lighters, which have a short lifespan and are easily damaged. Furthermore, the charge and discharge control circuits in existing power banks are susceptible to external interference, and their ability to output instantaneous, constant, high currents is poor. This results in the cigarette lighter being unable to start with a constant current, resulting in poor operational stability and a negative user experience.

[0005] The utility model patent with application number 201821248286.5 discloses a power bank cigarette lighter, but it directly uses a lithium battery to power the cigarette lighter, and controls the connection and disconnection between the cigarette lighter and the lithium battery through two touch switches. It is easy to overcharge and over-discharge during use, and cannot guarantee a stable output of a constant current. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the purpose of the embodiment of the utility model is to provide a multifunctional power bank that uses a laser cigarette lighter instead of a resistive cigarette lighter to extend the service life of the cigarette lighter; at the same time, the charge and discharge control circuit is improved so that it can stably output a stable current of a constant size to power the laser cigarette lighter, thereby ensuring the stability of the laser intensity and improving the user experience.

[0007] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0008] A multifunctional power bank comprises a housing, wherein a battery pack, a charge and discharge control circuit, and a laser drive circuit are disposed within the housing; a cigarette lighting port and a cigarette lighting cavity are provided on the housing; a semiconductor laser is disposed within the cigarette lighting cavity; a window glass is provided between the semiconductor laser and the cigarette lighting port; and a laser press switch is provided on the housing;

[0009] The battery pack is electrically connected to the charge and discharge control circuit, the charge and discharge control circuit is electrically connected to the laser pressing switch, the laser pressing switch is electrically connected to the laser driving circuit, and the laser driving circuit is electrically connected to the semiconductor laser;

[0010] Wherein, the charging and discharging circuit includes a mobile power charging and discharging chip, and the mobile power charging and discharging chip is electrically connected to the charging and discharging circuit and the status light display circuit respectively.

[0011] In some embodiments, the mobile power charging and discharging chip is an ETA9741 chip.

[0012] In some embodiments, the charge and discharge circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, and a first inductor;

[0013] The battery pack is electrically connected to the mobile power charge and discharge chip, the seventh pin of the mobile power charge and discharge chip is electrically connected to the first end of the laser press switch and the fourth capacitor, the fifth capacitor, and the sixth capacitor connected in parallel, respectively, and the second end of the laser press switch is electrically connected to the laser drive circuit;

[0014] The first end of the first inductor is electrically connected to the first pin of the mobile power supply charging and discharging chip, and the second end of the first inductor is electrically connected to the first capacitor, the second capacitor and the third capacitor connected in parallel.

[0015] In some embodiments, the first capacitor, the second capacitor, and the third capacitor connected in parallel are grounded, and the fourth capacitor, the fifth capacitor, and the sixth capacitor connected in parallel are grounded.

[0016] In some embodiments, the status light display circuit includes a first diode, a second diode, a third diode, a fourth diode, and a first resistor;

[0017] The second pin of the mobile power charge and discharge chip is electrically connected to the first diode and the second diode in parallel, the third pin of the mobile power charge and discharge chip is electrically connected to the third diode and the fourth diode in parallel, the first diode and the second diode in parallel and the third diode and the fourth diode in parallel are respectively electrically connected to the first resistor, and the first resistor is electrically connected to the fourth pin of the mobile power charge and discharge chip.

[0018] In some embodiments, a plurality of light-through holes are opened on the housing, and the first diode, the second diode, the third diode, and the fourth diode are located below the light-through holes.

[0019] In some embodiments, an aspheric convex lens is disposed above the semiconductor laser.

[0020] In some embodiments, a flip cover is further included, with a connecting rod hinged on one side of the flip cover. The laser push switch is located on one side of the shell, the connecting rod is vertically arranged on the push switch, and the flip cover covers the cigarette lighter port.

[0021] In some embodiments, a receiving groove is formed at the other end of the shell, and a metal window breaker and a seat belt cutter are placed in the receiving groove.

[0022] The technical solution provided by this utility model has at least the following technical effects or advantages:

[0023] 1. This utility model provides a technical solution that integrates a semiconductor laser cigarette lighter into a portable power bank. Users can charge their mobile phones and other electronic devices through the power bank's charging port while also lighting their cigarettes with the semiconductor laser cigarette lighter. This eliminates the need to carry a separate power source for the semiconductor laser cigarette lighter; simply carrying a power bank allows for both charging their electronic devices and lighting their cigarettes. Furthermore, compared to common resistive cigarette lighters, laser cigarette lighters offer greater stability and a longer service life.

[0024] 2. The technical solution provided by the present invention improves the charge and discharge control circuit to ensure the stable operation of the semiconductor laser cigarette lighter. The battery pack outputs a constant large current through the charge and discharge control circuit to power the semiconductor laser cigarette lighter, so that its output laser intensity is stable, tobacco is ignited smoothly, and the user experience is guaranteed.

[0025] 3. The technical solution provided by the utility model is that the laser cigarette lighter port adopts a flip-cover structure, which is opened when lighting a cigarette and closed when not lighting a cigarette, which can effectively prevent the laser from leaking.

[0026] 4. The technical solution provided by the present invention improves the charge and discharge control circuit, and sets capacitors for decoupling, filtering high-frequency noise, and reducing output pin noise, thereby reducing the impact of other factors on the power supply of the semiconductor laser, so that the battery pack outputs a constant large current through the charge and discharge control circuit, ensuring the stable operation of the semiconductor laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] Figure 1 This is a structural diagram of a multifunctional power bank provided by an embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the circuit architecture of the multifunctional power bank provided by an embodiment of the present utility model;

[0030] Figure 3 1 is a circuit diagram of a charge and discharge control circuit provided by an embodiment of the present utility model;

[0031] In the picture: 1. Shell; 2. Cigarette lighter port; 3. Cigarette lighter cavity; 4. USB port; 5. Flip cover.

[0032] In order to show the positions of various parts, the distances or sizes between them are exaggerated. The schematic diagram is for reference only. DETAILED DESCRIPTION

[0033] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0034] Example 1

[0035] As described in the background technology, existing power banks with integrated cigarette lighters cannot provide a constant and stable large current for the cigarette lighter, which affects the stable operation of the cigarette lighter. In order to solve the above technical problems, the present utility model proposes a multifunctional power bank.

[0036] Combine Figure 1-Figure 3 The multifunctional power bank includes a shell 1, a battery pack and a circuit board are installed inside the shell 1, and a charge and discharge control circuit and a laser drive circuit are welded on the circuit board. A cigarette lighting chamber 3 is opened on one side of the shell 1, and a cigarette lighting port 2 is opened at the end of the cigarette lighting chamber 3. A semiconductor laser is fixed to the inside of the cigarette lighting chamber 3 through a vertically arranged laser bracket. A window glass is installed horizontally between the semiconductor laser and the cigarette lighting port 2. An aspheric convex lens for focusing is installed horizontally above the semiconductor laser to focus the laser emitted by the semiconductor laser to the window glass. The laser can be emitted to the cigarette head through the window glass. The cigarette absorbs the laser and can reach a high temperature state in a short time to realize the cigarette lighting function; a radiator for heat dissipation is installed below the semiconductor laser.

[0037] Here, the radiator is a heat sink, and the semiconductor laser, the radiator, the laser driving circuit, the cigarette lighter port 2, the cigarette lighter cavity 3, the window glass and the aspheric convex lens constitute a semiconductor laser cigarette lighter.

[0038] A laser press switch is installed on the shell 1, the battery pack is electrically connected to the charge and discharge control circuit, the charge and discharge control circuit is electrically connected to the laser press switch, the laser press switch is electrically connected to the laser drive circuit, and the laser drive circuit is electrically connected to the semiconductor laser; when in use, press the laser press switch, the battery pack, the charge and discharge control circuit, the laser drive circuit and the semiconductor laser form a conduction circuit, and the battery pack outputs a constant large current to the laser drive circuit through the charge and discharge control current, and powers the semiconductor laser through the laser drive circuit to enable it to work normally.

[0039] As an implementation method, Figure 1 As shown, the charge and discharge control circuit includes a mobile power charge and discharge chip U3, and the mobile power charge and discharge chip U3 is electrically connected to the charge and discharge circuit and the status light display circuit, respectively. The status light display circuit includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4 and a first resistor R1, and the charge and discharge circuit includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6 and a first inductor L1.

[0040] The second pin LED1 of the mobile power charging and discharging chip U3 is electrically connected to the first diode D1 and the second diode D2 in parallel, the third pin LED2 of the mobile power charging and discharging chip U3 is electrically connected to the third diode D3 and the fourth diode D4 in parallel, the first diode D1 and the second diode D2 in parallel and the third diode D3 and the fourth diode D4 in parallel are respectively electrically connected to the first end of the first resistor R1, and the second end of the first resistor R1 is electrically connected to the fourth pin LED3 of the mobile power charging and discharging chip U3.

[0041] The positive terminal of the battery pack is electrically connected to the sixth pin BAT of the mobile power charge and discharge chip U3, and the negative terminal of the battery pack is grounded; the first end of the first inductor L1 is electrically connected to the first pin of the mobile power charge and discharge chip U3, and the second end of the first inductor L1 is electrically connected to the first end of the first capacitor C1, the first end of the second capacitor C2, and the first end of the third capacitor C3, respectively, and the second end of the first capacitor C1, the second end of the second capacitor C2, and the second end of the third capacitor C3 are respectively grounded; the second end of the first inductor L1 is electrically connected to the sixth pin BAT of the mobile power charge and discharge chip U3.

[0042] The first end of the fourth capacitor C4, the first end of the fifth capacitor C5, and the first end of the sixth capacitor C6 are electrically connected in parallel to the seventh pin OUT of the mobile power charge and discharge chip U3, and the second end of the fourth capacitor C4, the second end of the fifth capacitor C5, and the second end of the sixth capacitor C6 are respectively grounded; the first end of the laser press switch is electrically connected to the seventh pin OUT of the mobile power charge and discharge chip U3, the second end of the laser press switch is electrically connected to the input end of the laser drive circuit, and the output end of the laser drive circuit is electrically connected to the electrode of the semiconductor laser.

[0043] In this embodiment, the first diode D1, the second diode D2, the third diode D3, and the fourth diode D4 are light-emitting diodes used to display the power bank's battery level. Four light-through holes are defined in the housing 1, with the first diode D1, the second diode D2, the third diode D3, and the fourth diode D4 positioned below the corresponding light-through holes. The laser drive circuit is a constant-current drive module commonly found in laser cigarette lighters. This embodiment does not improve upon this module and will not be further described. The constant-current drive module described in Patent Publication No. CN220269436U can be used instead. The model of the mobile power charging and discharging chip U3 is ETA9741. The first capacitor C1 is the BAT pin decoupling capacitor for decoupling. The second capacitor C2 and the third capacitor C3 are BAT input bypass capacitors for filtering high-frequency noise. The fourth capacitor C4 and the fifth capacitor C5 are output capacitors for reducing output pin noise. The sixth capacitor C6 is the ADC decoupling capacitor of the mobile power charging and discharging chip U3 for decoupling. The first capacitor C1 to the sixth capacitor C6 are used to reduce the disturbance that may exist during the operation of the charging and discharging control circuit, so that it can stably output a constant current. The inductor L1 is used to maintain the direction of the output current.

[0044] Furthermore, a USB interface 4 is installed on the housing 1 , and the USB interface 4 is electrically connected to the seventh pin of the mobile power charging and discharging chip, and power is supplied to other electronic devices through the USB interface 4 .

[0045] The working method of this embodiment is as follows:

[0046] The user can charge the multi-function power bank through USB port 4, which can also power other devices. When the user needs to light a cigarette, they press the laser push button. The charge and discharge control circuit detects the external load and enters discharge mode. The battery pack, charge and discharge control circuit, laser drive circuit, and semiconductor laser form a conductive circuit. The battery pack powers the semiconductor laser through the charge and discharge control circuit and laser drive circuit, and the semiconductor laser works to ignite the cigarette. Here, the charge and discharge control circuit detects the external load and enters discharge mode. This is an existing function of the charge and discharge control circuit. This embodiment does not improve it and will not be repeated here.

[0047] Furthermore, in order to effectively prevent laser leakage, a flip cover 5 is further included. One side of the flip cover 5 is hinged to one side of the shell 1 , the flip cover 5 covers the cigarette lighter port 2 , and the other side of the flip cover 5 can contact the top of the shell 1 .

[0048] Specifically, a mounting slot is provided on one side of the shell 1, and the top and one side of the slot are open; the bottom end of the laser mounting switch is fixed to the bottom of the slot, and the pressing end of the laser pressing switch is vertically installed with a connecting rod, and one side of the flip cover 5 is hinged to the top end of the connecting rod and can rotate along the top end of the connecting rod.

[0049] When in use, the flip cover 5 is opened, and after the flip cover 5 is opened, the connecting rod moves downward. The user can press the laser pressing switch to make the battery pack, the charge and discharge control circuit and the laser driving circuit conductive. The laser driving circuit is turned on and drives the semiconductor laser to work and realize cigarette lighting.

[0050] Example 2

[0051] The difference between this embodiment and the first embodiment is that a receiving groove is provided at the other end of the shell 1, in which a metal window breaker and a seat belt cutter are placed. On the one hand, it is convenient to take out the window breaker or the seat belt cutter, and avoids leaving them in the car and being unable to find them in an emergency or occupying space in the car; on the other hand, it provides safety protection when riding in a car or driving by yourself, and can be used to break windows and cut seat belts in the event of a traffic accident.

[0052] In this embodiment, the metal window breaker is a probe-type metal window breaker, which occupies very little space.

[0053] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A multifunctional power bank, characterized in that: The device comprises a housing, wherein a battery pack, a charge and discharge control circuit, and a laser drive circuit are disposed inside the housing, a cigarette lighting port and a cigarette lighting cavity are provided on the housing, a semiconductor laser is disposed inside the cigarette lighting cavity, a window glass is provided between the semiconductor laser and the cigarette lighting port, and a laser press switch is provided on the housing; The battery pack is electrically connected to the charge and discharge control circuit, the charge and discharge control circuit is electrically connected to the laser pressing switch, the laser pressing switch is electrically connected to the laser driving circuit, and the laser driving circuit is electrically connected to the semiconductor laser; Wherein, the charge and discharge control circuit includes a mobile power charge and discharge chip, and the mobile power charge and discharge chip is electrically connected to a charge and discharge circuit and a status light display circuit respectively.

2. The multifunctional power bank according to claim 1, characterized in that: The mobile power charging and discharging chip is an ETA9741 chip.

3. The multifunctional power bank according to claim 1, characterized in that: The charging and discharging circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor and a first inductor; The battery pack is electrically connected to the mobile power charge and discharge chip, the seventh pin of the mobile power charge and discharge chip is electrically connected to the first end of the laser press switch and the fourth capacitor, the fifth capacitor, and the sixth capacitor connected in parallel, respectively, and the second end of the laser press switch is electrically connected to the laser drive circuit; The first end of the first inductor is electrically connected to the first pin of the mobile power supply charging and discharging chip, and the second end of the first inductor is electrically connected to the first capacitor, the second capacitor and the third capacitor connected in parallel.

4. The multifunctional power bank according to claim 3, characterized in that: The first capacitor, the second capacitor, and the third capacitor connected in parallel are grounded, and the fourth capacitor, the fifth capacitor, and the sixth capacitor connected in parallel are grounded.

5. The multifunctional power bank according to claim 1, characterized in that: The status light display circuit includes a first diode, a second diode, a third diode, a fourth diode and a first resistor; The second pin of the mobile power charge and discharge chip is electrically connected to the first diode and the second diode in parallel, the third pin of the mobile power charge and discharge chip is electrically connected to the third diode and the fourth diode in parallel, the first diode and the second diode in parallel and the third diode and the fourth diode in parallel are respectively electrically connected to the first resistor, and the first resistor is electrically connected to the fourth pin of the mobile power charge and discharge chip.

6. The multifunctional power bank according to claim 5, characterized in that: The housing is provided with a plurality of light-through holes, and the first diode, the second diode, the third diode and the fourth diode are located below the light-through holes.

7. The multifunctional power bank according to claim 1, characterized in that: An aspherical convex lens is arranged above the semiconductor laser.

8. The multifunctional power bank according to claim 1, characterized in that: It also includes a flip cover, one side of which is hinged with a connecting rod, the laser push switch is located on one side of the shell, the connecting rod is vertically arranged on the push switch, and the flip cover covers the cigarette lighter port.

9. The multifunctional power bank according to claim 1, characterized in that: The housing is provided with a USB interface, and the USB interface is electrically connected to the seventh pin of the mobile power charging and discharging chip.

10. The multifunctional power bank according to claim 1, characterized in that: The other end of the shell is provided with an accommodating groove, in which a metal window breaker and / or a safety belt cutter is placed.

Images