Flicker unit, flash bulb and lamp string suitable for alternating current power supply

Abstract

The utility model discloses a flicker unit, a flash bulb and a lamp string suitable for AC power supply. The flicker unit comprises a diode D1, a wafer LED 5, a control chip IC, a capacitor C1 and a bidirectional Zener diode Z1. The diode D1 forms a reverse isolation loop, the wafer LED5 and the control chip IC form a flicker loop, the capacitor C1 forms a power supply loop, the bidirectional Zener diode Z1 forms an AC voltage stabilization loop, after the reverse isolation loop and the flicker loop are connected in series, one end is an AC contact L1, the other end is an AC contact L2, and the power supply loop is connected to the two ends of the flicker loop in parallel. The alternating-current voltage stabilizing loop is connected in parallel between the alternating-current contact L1 and the alternating-current contact L2; according to the LED lamp string, the flicker unit is arranged in the lamp string, when the alternating-current power supply direction is changed, power is supplied to the control chip IC through the capacitor, it is guaranteed that the control chip IC can work even through alternating-current power supply is adopted, the LED lamp string has the advantages of being high in efficiency and low in cost of the alternating-current power supply LED lamp string, and meanwhile the control chip controls the flicker to be turned on or turned off in a timing mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of lighting or decorative lamps, in particular to a kind of LED flashing bubble and lamp string. BACKGROUND

[0002] LED lamp string with AC power supply is widely used with the advantages of high efficiency, such as the patent document with publication number CN105682296A discloses a positive and negative connection type LED lamp string. This constant light type lamp string works in one branch of positive half wave and another branch of negative half wave. That is, the working state of the two branches is alternating, and one branch is always not powered.

[0003] The current LED flashing bubble is integrated with a control chip inside. The control chip controls the lighting or extinguishing of the LED flashing bubble by its timing function. The LED beads are powered when the LED flashing bubble is lit, and the LED beads are not powered when the LED flashing bubble is extinguished. However, the control chip needs to be powered all the time. Obviously, this LED flashing bubble can only use continuous DC power supply and is not suitable for AC power supply. It cannot be directly installed in the solution of CN105682296A to change the constant light lamp string into a flickering lamp string. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a flickering unit, a flashing bubble and a lamp string suitable for AC power supply.

[0005] The utility model solves the technical problems by adopting the following technical solutions:

[0006] A flickering unit, a flashing bubble and a lamp string suitable for AC power supply, the flickering unit includes a diode D1, a wafer LED 5, a control chip IC, a capacitor C1 and a bidirectional Zener diode Z1. The diode D1 forms a reverse isolation circuit, the wafer LED 5 and the control chip IC form a flickering circuit, the capacitor C1 forms a power supply circuit, and the bidirectional Zener diode Z1 forms an AC voltage stabilizing circuit. The reverse isolation circuit and the flickering circuit are connected in series, with one end being an AC contact L1 and the other end being an AC contact L2. The power supply circuit is connected in parallel across the flickering circuit, and the AC voltage stabilizing circuit is connected in parallel between the AC contact L1 and the AC contact L2.

[0007] A flash bulb suitable for AC power supply includes pin A, pin B and a bracket C, the chip LED5 is fixed on the bracket C, the diode D1 is fixed on the pin A, the control chip IC and the bidirectional Zener diode Z1 are fixed on the pin B, and the capacitor C1 is fixed between the pin B and the bracket C; one end of the diode D1 is electrically connected to the pin A, and the other end is electrically connected to one end of the chip LED5 through a wire, the other end of the chip LED5 is connected to one end of the control chip IC through a wire, and the other end of the control chip IC is electrically connected to the pin B, one end of the bidirectional Zener diode Z1 is electrically connected to the pin A through a wire, and the other end is electrically connected to the pin B, one end of the capacitor C1 is electrically connected to the pin B, and the other end is electrically connected to the bracket C.

[0008] A lens is packaged on the upper portion of the pin A, pin B and bracket C, and the diode D1, chip LED5, control chip IC, capacitor C1 and bidirectional Zener diode Z1 are all packaged in the lens.

[0009] A reflective cup is provided on the top of the bracket C, and the chip LED 5 is fixed in the reflective cup.

[0010] A light string suitable for AC power supply comprises the above-mentioned flashing unit.

[0011] A light string suitable for AC power supply comprises the flash bulb.

[0012] The light string also includes a forward load and a reverse load, which are connected in parallel and then in series in the AC flashing LED lighting circuit; the forward load is composed of a number of LED lamp beads connected in series in the same direction; the reverse load is composed of a number of LED lamp beads connected in series in the same direction, and the polarity of the LED lamp beads in the forward load is opposite to the polarity of the LED lamp beads in the reverse load.

[0013] The light string also includes a light-emitting module composed of two LED lamp beads connected end to end. There are multiple light-emitting modules, including lamp group LED1, lamp group LED2, lamp group LED3 and lamp group LED4. The lamp group LED1, lamp group LED2, lamp group LED3 and lamp group LED4 are connected in series and then connected in series with the flash bulb.

[0014] The light string further includes a resistor R1 and a resistor R2, which are connected in series and then connected in series with the flash bulb.

[0015] The utility model discloses beneficial effect is: the utility model discloses the setting flicker unit in the light string, when the alternating current power supply direction changes, through the capacitor to control chip IC power supply, guarantee control chip IC adopts alternating current power supply also can work, make the light string can realize flickering lighting, still can adopt the mode of alternating current power supply work, have the advantages of high efficiency, low cost of alternating current power supply LED light string, realize control chip timing control flash bubble lighting or extinguishing simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further explained below in combination with the drawings and embodiments.

[0017] Figure 1 It is the circuit diagram of flicker unit.

[0018] Figure 2 It is the circuit diagram of another embodiment of flicker unit.

[0019] Figure 3 It is the circuit diagram of light string.

[0020] Figure 4 It is the circuit diagram of another embodiment of light string.

[0021] Figure 5 It is the structural schematic diagram of flash bubble. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific implementation and referring to the drawings. It needs to be explained that the embodiment of the utility model and the feature in the embodiment can be combined mutually in the case of not conflicting.

[0023] It is understood that these descriptions are only exemplary, and not to limit the scope of the utility model.

[0024] Referring to Figures 1 to 5 , a flicker unit, flash bubble and light string suitable for alternating current power supply, the flicker unit includes diode D1, wafer LED 5, control chip IC, capacitor C1 and bidirectional Zener diode Z1;The control chip IC adopts HW1201A chip;The diode D1 constitutes reverse isolation loop, the wafer LED 5 and control chip IC constitute flicker loop, the capacitor C1 constitutes power supply loop, the bidirectional Zener diode Z1 constitutes alternating current voltage stabilizing loop, the reverse isolation loop and the flicker loop are connected in series, one end is alternating current contact L1, the other end is alternating current contact L2, the power supply loop is connected in parallel at the two ends of the flicker loop, the alternating current voltage stabilizing loop is connected in parallel between the alternating current contact L1 and alternating current contact L2;As Figure 1The ACF is the flicker unit as described above; the utility model discloses a flicker unit is arranged in the lamp string, when the direction of alternating current power supply changes, the control chip IC is powered by the capacitor, ensures that the control chip IC can work using alternating current power supply, makes the lamp string can realize flickering and lighting, and can also work using alternating current power supply, and the alternating current power supply LED lamp string has the advantages of high efficiency and low cost, and realizes the timing control of control chip and the lighting or extinguishing of flash bubble simultaneously.According to the functional characteristics of control IC, it can be as Figure 1 As shown, the diode D1, the wafer LED 5 and the control chip IC are sequentially connected in series to form a loop, and as shown in the figure, Figure 2 As shown, the diode D1, the control chip IC and the wafer LED 5 are sequentially connected in series to form a loop.

[0025] A flicker suitable for alternating current power supply includes a pin A, a pin B and a bracket C, the wafer LED 5 is fixed on the bracket C, the diode D1 is fixed on the pin A, the control chip IC and the bidirectional Zener diode Z1 are fixed on the pin B, and the capacitor C1 is fixed between the pin B and the bracket C; one end of the diode D1 is electrically connected with the pin A, which can be connected by a wire or directly welded, and the other end is electrically connected with one end of the wafer LED 5 through a wire, the other end of the wafer LED 5 is connected with one end of the control chip IC through a wire, the other end of the control chip IC is electrically connected with the pin B, and the other end of the control chip IC can be connected with the pin B through a wire or directly welded, it should be noted that some control chips IC have multiple pins, such as a power supply end, a current input end for providing working current for the wafer LED 5, a current output end and the like, the one end and the other end of the control chip IC here refer to the terminals for providing working current for the wafer LED 5, that is, the current input end and the current output end for providing working current for the wafer LED 5, one end of the bidirectional Zener diode Z1 is electrically connected with the pin A through a wire, and the other end is electrically connected with the pin B, one end of the capacitor C1 is electrically connected with the pin B, which can be connected by a wire or directly welded, and the other end is electrically connected with the bracket C.

[0026] The upper part of the pin A, the pin B and the bracket C is packaged with a lens, and the diode D1, the wafer LED 5, the control chip IC, the capacitor C1 and the bidirectional Zener diode Z1 are all packaged in the lens.

[0027] The top of the bracket C is provided with a reflecting cup, and the wafer LED 5 is fixed in the reflecting cup.

[0028] A lamp string suitable for alternating current power supply comprises the flicker unit or the flicker.

[0029] Embodiment 1, as Figure 3As shown in the figure, the light string further comprises light emitting modules composed of two LED lamp beads connected head to tail, and the light emitting modules are provided in plurality, including light group LED1, light group LED2, light group LED3 and light group LED4, which are connected in series and connected with the flash bubble string.

[0030] Embodiment 2, as Figure 4 As shown in the figure, the light string further comprises forward load and reverse load, which are connected in parallel and connected in series in the alternating current flashing LED lighting circuit; the forward load is composed of a plurality of LED lamp beads with consistent direction connected in series; the reverse load is composed of a plurality of LED lamp beads with consistent direction connected in series, and the polarity of the LED lamp beads in the forward load is opposite to the polarity of the LED lamp beads in the reverse load.

[0031] In addition to the above two kinds of light strings that the flashing unit is connected with the lamp beads in series, that is, the light string that is always bright and also flashes, the light string can also be provided with a plurality of flashing units connected in series to form a light string that only flashes.

[0032] The light string further comprises resistance R1 and resistance R2, which are connected in series and connected with the flash bubble string.

[0033] The control chip IC adopts HW1201A chip; the HW1201A chip adopts CMOS process, has the advantages of low self-power consumption, wide working voltage and strong anti-interference ability; and has a built-in LED single flash.

[0034] When the flashing unit works in the positive half wave of alternating current, the current flows in from the alternating current contact L1, one way flows through the diode D1 to supply power to the chip LED5 to make it light up, at the same time to provide working current for the control chip IC and charge the capacitor C1, and the other way flows from the alternating current contact L2. When the flashing unit works in the negative half wave of alternating current, the current flows in from the alternating current contact L2, and due to the blocking effect of the diode D1, at this time, the current only flows from the bidirectional Zener diode Z1 to flow out from the alternating current contact L1, the capacitor C1 releases the charge to provide working current for the control chip IC, and when the capacitance of the capacitor C1 is large enough, it can also supply power to the control chip IC and the chip LED5 at the same time.

[0035] In the present application, the term "a plurality of" means two or more, unless otherwise expressly specified. The term "and / or" as used herein encompasses all possibilities of combinations of one or more relevant items. The terms "mounting", "connected", "connecting", "fixed", and the like, should be interpreted broadly, for example, "connected" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through intermediate media. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] It should be noted that when an element is referred to as being "mounted", "attached", "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0037] In the description of the present application, the terms "one embodiment", "some embodiments", "certain embodiments" and the like are described, which means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A flash unit suitable for AC power supply, characterized in that It includes a diode D1, a chip LED5, a control chip IC, a capacitor C1 and a bidirectional Zener diode Z1; the diode D1 constitutes a reverse isolation circuit, the chip LED5 and the control chip IC constitute a flashing circuit, the capacitor C1 constitutes a power supply circuit, and the bidirectional Zener diode Z1 constitutes an AC voltage stabilization circuit. After the reverse isolation circuit and the flashing circuit are connected in series, one end is an AC contact L1, and the other end is an AC contact L2. The power supply circuit is connected in parallel at both ends of the flashing circuit, and the AC voltage stabilization circuit is connected in parallel between the AC contact L1 and the AC contact L2.

2. A flash bulb suitable for AC power supply, characterized in that It includes pin A, pin B and bracket C, the chip LED5 is fixed on the bracket C, the diode D1 is fixed on the pin A, the control chip IC and the bidirectional Zener diode Z1 are fixed on the pin B, and the capacitor C1 is fixed between the pin B and the bracket C; one end of the diode D1 is electrically connected to the pin A, and the other end is electrically connected to one end of the chip LED5 through a wire, the other end of the chip LED5 is connected to one end of the control chip IC through a wire, the other end of the control chip IC is electrically connected to the pin B, one end of the bidirectional Zener diode Z1 is electrically connected to the pin A through a wire, and the other end is electrically connected to the pin B, one end of the capacitor C1 is electrically connected to the pin B, and the other end is electrically connected to the bracket C.

3. The AC powered flash bulb according to claim 2, characterized in that A lens is packaged on the upper portion of the pin A, pin B and bracket C, and the diode D1, chip LED5, control chip IC, capacitor C1 and bidirectional Zener diode Z1 are all packaged in the lens.

4. The AC powered flash bulb according to claim 2, characterized in that A reflective cup is provided on the top of the bracket C, and the chip LED 5 is fixed in the reflective cup.

5. A light string suitable for AC power supply, characterized by The scintillation unit comprises the scintillation unit according to claim 1.

6. A light string suitable for AC power supply, characterized by The method comprises the flash bubble according to any one of claims 2 to 5.

7. The AC powered light string according to claim 6, characterized in that It also includes a forward load and a reverse load, which are connected in parallel and then in series in the AC flashing LED lighting circuit; the forward load is composed of a number of LED lamp beads connected in series in the same direction; the reverse load is composed of a number of LED lamp beads connected in series in the same direction, and the polarity of the LED lamp beads in the forward load is opposite to the polarity of the LED lamp beads in the reverse load.

8. The AC powered light string according to claim 6, characterized in that It also includes a light-emitting module composed of two LED lamp beads connected end to end. The light-emitting module is provided with multiple ones, including lamp group LED1, lamp group LED2, lamp group LED3 and lamp group LED4. The lamp group LED1, lamp group LED2, lamp group LED3 and lamp group LED4 are connected in series and then connected in series with the flash bulb.

9. The AC powered light string according to claim 7 or 8, characterized in that The flash bulb is further comprised of a resistor R1 and a resistor R2, which are connected in series with each other.

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