CN210891101U

CN210891101U - LED bulb lamp

Info

Publication number: CN210891101U
Application number: CN201922004815.8U
Authority: CN
Inventors: 吴钊强; 雷富强; 范世钧; 朱奕光; 魏彬
Original assignee: Foshan Electrical and Lighting Co Ltd
Current assignee: Foshan Electrical and Lighting Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-06-30
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a LED bulb lamp, including leaded light cover, lamps and lanterns main part, lamps and lanterns shell and connecting portion, be equipped with aluminium base board in the lamps and lanterns main part, be equipped with on the aluminium base board: double voltage input LED lamp drive circuit, double voltage input LED lamp drive circuit includes: electrolytic capacitors and patch terminals; the aluminum substrate is provided with the double-voltage input LED lamp driving circuit, so that the double-voltage input LED bulb lamp can be controlled to work, the electrolytic capacitor is fixed by adopting the all-metal patch terminal, the contact area with the aluminum substrate is larger, the adhesive force is stronger, and the problem that the aluminum substrate hung with the large electrolytic capacitor is easy to fall off is solved; meanwhile, the LED lamp is controlled by double voltage input; the utility model is used for integrative LED ball bubble lamp of photoelectricity.

Description

LED bulb lamp

Technical Field

The utility model relates to a lamps and lanterns illumination technical field especially relates to a LED ball bubble lamp.

Background

Because the LED has characteristics of high luminous efficiency, long life, and the like, LED lamps are replacing traditional incandescent lamps and energy saving lamps in large quantities. With the development of the society and the improvement of the living standard of people, people increasingly pursue functional diversification for lamps, the LED bulb lamp is generally provided with an electric element on an aluminum substrate, but the electric element is easy to fall off, and an insulating gasket is required to be added for avoiding the electric leakage of the aluminum substrate, so that the cost of the whole LED bulb lamp is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a LED ball bubble lamp to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

The utility model provides a solution of its technical problem is: the utility model provides a LED bulb lamp, includes leaded light cover, lamps and lanterns main part, lamps and lanterns shell and connecting portion, lamps and lanterns main part nestification is in the lamps and lanterns shell, leaded light cover with the connection can be dismantled to the lamps and lanterns shell, connecting portion with the connection can be dismantled to the lamps and lanterns shell, be equipped with aluminium base board in the lamps and lanterns main part, be equipped with on the aluminium base board: the double-voltage input LED lamp driving circuit is welded on the aluminum substrate and comprises: electrolytic capacitors and patch terminals; the electrolytic capacitor is directly inserted to the back of the aluminum substrate in a convex leather head mode; the chip terminals are all metal chip terminals, and the chip terminals are connected with two pins of the electrolytic capacitor and used for fixing the electrolytic capacitor on the aluminum substrate.

The aluminum substrate is provided with the double-voltage input LED lamp driving circuit, so that the double-voltage input LED bulb lamp can be controlled to work, the electrolytic capacitor is fixed by adopting the all-metal patch terminal, the contact area with the aluminum substrate is larger, the adhesive force is stronger, and the problem that the aluminum substrate hung with the large electrolytic capacitor is easy to fall off is solved; and meanwhile, the LED lamp is controlled by double voltage inputs.

As a further improvement of the above technical solution, the aluminum substrate is disc-shaped. The electrical components are better soldered.

As a further improvement of the above technical solution, the dual voltage input LED lamp driving circuit further includes: the LED light-emitting module comprises a rectifying module, a voltage sampling module, a constant current control module and an LED light-emitting module;

the rectification module is used for providing electric energy for the constant current control module and the LED light-emitting module; the voltage sampling module is connected with the rectifying module and is used for sampling input voltage;

the constant current control module is respectively connected with the rectifying module, the voltage sampling module and the LED light-emitting module and is used for outputting voltage to the LED light-emitting module; the constant current control module comprises one or more constant current control chips, and the constant current control chips are connected in parallel; the LED light-emitting module comprises a first LED lamp group, a second LED lamp group and a switch module, wherein the anode of the first LED lamp group is connected with the cathode of a first diode, the anode of the first diode is connected with the cathode of the second LED lamp group, and one end of the switch module is respectively connected with the cathode of the first LED lamp group and the anode of the first diode. The LED lamp is controlled by double voltage input, and the circuit is simple, stable and reliable.

As a further improvement of the above technical solution, the rectifier module includes a safety resistor, a rectifier circuit, a voltage dependent resistor, and a discharge resistor; the voltage dependent resistor is connected with the alternating current input end of the rectifying circuit in parallel, the right end of the safety resistor is connected with the alternating current input end of the rectifying circuit, and the left end of the safety resistor is connected with the fire wire end; the upper end of the electrolytic capacitor is connected with the positive polarity voltage output end of the rectifying circuit, the upper end of the discharge resistor and the positive electrode of the first LED lamp bank respectively, and the lower end of the electrolytic capacitor is connected with the lower end of the discharge resistor and the grounding end respectively. The power grid alternating current is converted into direct current, and the direct current is filtered to supply power to the LED light-emitting module and the constant-current control module

As a further improvement of the above technical solution, the voltage sampling module includes a first resistor, a second resistor, and a first capacitor, and a lower end of the first resistor is connected to an upper end of the second resistor and an upper end of the first capacitor, respectively; the lower end of the second resistor is respectively connected with the lower end of the first capacitor and the grounding end. The voltage input to the rectifier circuit is sampled.

As a further improvement of the above technical solution, the first LED lamp set and the second LED lamp set are respectively formed by connecting a plurality of LED lamp strings in parallel, and the LED lamp strings are formed by connecting a plurality of LED lamp beads in series. Providing light of sufficient brightness.

As a further improvement of the above technical solution, the switch module includes a voltage regulator tube, an MOS tube, a fourth resistor, and a second diode; the source electrode of the MOS tube is respectively connected with the anode of the voltage stabilizing tube and the anode of the second diode; the cathode of the second diode is connected with the cathode of the first diode; the drain electrode of the MOS tube is respectively connected with the upper end of the fourth resistor and the anode of the first LED lamp group; and the grid electrode of the MOS tube is respectively connected with the negative electrode of the voltage stabilizing tube and the lower end of the fourth resistor. The voltage of the LED light-emitting module is stable, and the LED bulb lamp can normally emit light.

As a further improvement of the technical scheme, the electrolytic capacitor is CD 288L. Better contact with the aluminum substrate and strong adhesive force.

The utility model has the advantages that: the utility model discloses be equipped with two voltage input LED lamp drive circuit on the aluminium base board, can realize the work of two voltage input control LED ball bubble lamps, adopt the fixed electrolytic capacitor of the paster terminal of full metal, and the area of contact with the aluminium base board is bigger, and the adhesive force is stronger, prevents to hang the problem that big electrolytic capacitor aluminium base board easily drops, and electrolytic capacitor adopts protruding leather point mode, cut straightly to the aluminium base board back, can avoid aluminium base board electric leakage to damage electrolytic capacitor, improves product reliability, need not add insulating gasket, practices thrift material cost and joining cost, improves production efficiency; and meanwhile, the LED lamp is controlled by double voltage inputs.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an aluminum substrate of an LED bulb lamp provided by the present invention;

fig. 2 is a lamp structure diagram of an LED bulb lamp provided by the present invention;

fig. 3 is a schematic circuit diagram of a dual-voltage-input LED lamp driving circuit of an LED bulb lamp provided by the present invention;

the coordinate arrows in fig. 3 indicate up, down, left, and right, respectively.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Embodiment 1, referring to fig. 1 and fig. 2, this embodiment describes an aluminum substrate 200 on an LED bulb lamp as an example. The method specifically comprises the following steps: the utility model provides a LED bulb lamp, includes leaded light cover 100, lamps and lanterns main part 300, lamps and lanterns shell 400 and connecting portion 500, lamps and lanterns main part 300 nestification is in the lamps and lanterns shell 400, leaded light cover 100 with the connection can be dismantled to lamps and lanterns shell 400, connecting portion 500 with the connection can be dismantled to lamps and lanterns shell 400, be equipped with aluminium base board 200 on the lamps and lanterns main part 300, be equipped with on aluminium base board 200: a dual voltage input LED lamp driving circuit 211, wherein the dual voltage input LED lamp driving circuit 211 is welded on the aluminum substrate 200, and the dual voltage input LED lamp driving circuit 211 includes: electrolytic capacitor 213 and patch terminal 212; the electrolytic capacitor 213 is directly inserted to the back of the aluminum substrate 200 in a convex head mode; the chip terminal 212 is an all-metal chip terminal 212, and the chip terminal 212 is connected to two pins of the electrolytic capacitor 213 and is used for fixing the electrolytic capacitor 213 on the aluminum substrate 200.

The aluminum substrate 200 is provided with a double-voltage input LED lamp driving circuit 211, so that the double-voltage input LED bulb lamp can be controlled to work; the electrolytic capacitor 213 is fixed by the all-metal patch terminal 212, the contact area between the electrolytic capacitor 213 and the aluminum substrate 200 is larger, the adhesive force is stronger, and the problem that the aluminum substrate 200 hung with the large electrolytic capacitor 213 is easy to fall off is solved; the electrolytic capacitor 213 only needs conventional straight pins, and the terminal of the patch terminal 212 can be adjusted according to the pin pitch of the electrolytic capacitor 213, so that the processing cost can be reduced; the electrolytic capacitor 213 is directly inserted to the back of the aluminum substrate 200 in a convex head mode, so that the electrolytic capacitor 213 can be prevented from being damaged by electric leakage of the aluminum substrate 200, the reliability of a product is improved, an insulating gasket is not required to be added, the material cost and the adding cost are saved, and the production efficiency is improved; and meanwhile, the LED lamp is controlled by double voltage inputs.

In some embodiments, the aluminum substrate 200 has a disk shape. The electrical components are better soldered.

The dual-voltage input LED lamp driving circuit 211 further includes a rectifying module 201, a voltage sampling module 202, a constant current control module 203, and an LED light emitting module 204.

Referring to fig. 3, the rectifying module 201 is respectively connected to the voltage sampling module 202, the constant current control module 203 and the LED light emitting module 204, and the constant current control module 203 is respectively connected to the voltage sampling module 202 and the LED light emitting module 204.

The rectifying module 201 converts the alternating current into direct current, and provides electric energy for the constant current control module 203 and the LED light emitting module 204 after filtering. The rectification module 201 includes: rectifier circuit DB1, varistor RV1, insurance resistance FR1 and discharge resistance R3.

A voltage sampling module 202 for sampling an input voltage, comprising: the circuit comprises a first capacitor C1, a first resistor R1 and a second resistor R2.

The constant current control module 203 is used for outputting voltage to the LED light emitting module 204, and includes a plurality of constant current control chips, which are connected in parallel.

The LED light emitting module 204 includes a first LED lamp set, a second LED lamp set and a switch module, wherein an anode of the first LED lamp set is connected to a cathode of the first diode D1, an anode of the first diode D1 is connected to a cathode of the second LED lamp set, and one end of the switch module is connected to the cathode of the first LED lamp set and the anode of the first diode respectively. The switch module comprises a voltage regulator tube ZD1, a MOS tube Q1 and a fourth resistor R4.

A first current input end of the rectifying circuit DB1 is respectively connected with the upper end of the voltage dependent resistor RV1 and the right end of the safety resistor FR 1; the left end of the fuse resistor FR1 is connected with the live wire end L; a second current input end of the rectifying circuit DB1 is respectively connected with the lower end of the piezoresistor RV1 and the zero line end N; the negative polarity voltage output end of the rectifying circuit DB1 is connected with the first resistor R1; the positive voltage output end of the rectifying circuit DB1 is connected to the upper end of the electrolytic capacitor 213, the upper end of the discharge resistor R3, the upper end of the fourth resistor R4, the drain of the MOS transistor, and the positive electrode of the first LED lamp group.

In some embodiments, the rectifier module 201 is connected to the live end L and the neutral end N through the power terminals.

The lower end of the first resistor R1 is respectively connected with the upper end of the second resistor R2 and the upper end of the first capacitor C1; the lower end of the second resistor R2 is connected to the lower end of the first capacitor C1 and the ground terminal, respectively.

The source electrode of the MOS tube Q1 is respectively connected with the anode of the voltage regulator tube ZD1 and the anode of the second diode D2; the cathode of the second diode D2 is connected with the cathode of the first diode D1; the drain electrode of the MOS transistor Q1 is respectively connected with the upper end of the fourth resistor R4 and the anode of the first LED lamp group; the grid of the MOS transistor Q1 is respectively connected with the cathode of the voltage regulator tube ZD1 and the lower end of the fourth resistor R4.

In some embodiments, there are five constant current control chips, using the SM2199EG chip model.

A first pin BUS of the constant current control chip U1 is respectively connected with the lower end of a first resistor R1 and the upper end of a second resistor R2; a third pin REXT of the constant current control chip U1 is connected to the upper end of a sixth resistor R6, and the lower end of the sixth resistor R6 is connected to the lower end of the second resistor R2 and the ground terminal, respectively; a fourth pin REXT2 of the constant current control chip U1 is connected with the upper end of a fifth resistor R5, and the lower end of the fifth resistor R5 is connected with the lower end of a sixth resistor R6 and the ground terminal; a fifth pin OUT2 of the constant current control chip U1 is connected with the negative electrode of the second LED lamp group; a sixth pin OUT1 of the constant current control chip U1 is respectively connected with the cathode of the first LED lamp group and the anode of the first diode D1; a seventh pin EN of the constant current control chip U1 is respectively connected with the cathode of the voltage regulator tube ZD1, the lower end of the fourth resistor R4 and the gate of the MOS tube Q1; an eighth pin VIN of the constant current control chip U1 is connected to a lower end of the seventh resistor R7, and an upper end of the seventh resistor R7 is connected to an upper end of the discharge resistor R3, an upper end of the fourth resistor R4, a drain of the MOS transistor Q1, and an anode of the first LED lamp group, respectively.

A first pin BUS of the constant current control chip U2 is respectively connected with the lower end of a first resistor R1 and the upper end of a second resistor R2; a third pin REXT of the constant current control chip U2 is connected to the upper end of a sixth resistor R9, and the lower end of the sixth resistor R9 is connected to the lower end of the second resistor R2 and the ground terminal, respectively; a fourth pin REXT2 of the constant current control chip U2 is connected with the upper end of a fifth resistor R8, and the lower end of the fifth resistor R8 is connected with the lower end of a sixth resistor R9 and the ground terminal; a fifth pin OUT2 of the constant current control chip U2 is connected with the negative electrode of the second LED lamp group; a sixth pin OUT1 of the constant current control chip U2 is respectively connected with the cathode of the first LED lamp group and the anode of the first diode D1; a seventh pin EN of the constant current control chip U2 is respectively connected with the cathode of the voltage regulator tube ZD1, the lower end of the fourth resistor R4 and the gate of the MOS tube Q1; an eighth pin VIN of the constant current control chip U2 is connected to a lower end of the seventh resistor R10, and an upper end of the seventh resistor R10 is connected to an upper end of the discharge resistor R3, an upper end of the fourth resistor R4, a drain of the MOS transistor Q1, and an anode of the first LED lamp group, respectively.

A first pin BUS of the constant current control chip U3 is respectively connected with the lower end of a first resistor R1 and the upper end of a second resistor R2; a third pin REXT of the constant current control chip U3 is connected to the upper end of a sixth resistor R12, and the lower end of the sixth resistor R12 is connected to the lower end of the second resistor R2 and the ground terminal, respectively; a fourth pin REXT2 of the constant current control chip U3 is connected with the upper end of a fifth resistor R11, and the lower end of the fifth resistor R11 is connected with the lower end of a sixth resistor R12 and the ground terminal; a fifth pin OUT2 of the constant current control chip U3 is connected with the negative electrode of the second LED lamp group; a sixth pin OUT1 of the constant current control chip U3 is respectively connected with the cathode of the first LED lamp group and the anode of the first diode D1; a seventh pin EN of the constant current control chip U3 is respectively connected with the cathode of the voltage regulator tube ZD1, the lower end of the fourth resistor R4 and the gate of the MOS tube Q1; an eighth pin VIN of the constant current control chip U3 is connected to a lower end of the seventh resistor R13, and an upper end of the seventh resistor R13 is connected to an upper end of the discharge resistor R3, an upper end of the fourth resistor R4, a drain of the MOS transistor Q1, and an anode of the first LED lamp group, respectively.

A first pin BUS of the constant current control chip U4 is respectively connected with the lower end of a first resistor R1 and the upper end of a second resistor R2; a third pin REXT of the constant current control chip U4 is connected to the upper end of a sixth resistor R15, and the lower end of the sixth resistor R15 is connected to the lower end of the second resistor R2 and the ground terminal, respectively; a fourth pin REXT2 of the constant current control chip U4 is connected with the upper end of a fifth resistor R14, and the lower end of the fifth resistor R14 is connected with the lower end of a sixth resistor R15 and the ground terminal; a fifth pin OUT2 of the constant current control chip U4 is connected with the negative electrode of the second LED lamp group; a sixth pin OUT1 of the constant current control chip U4 is respectively connected with the cathode of the first LED lamp group and the anode of the first diode D1; a seventh pin EN of the constant current control chip U4 is respectively connected with the cathode of the voltage regulator tube ZD1, the lower end of the fourth resistor R4 and the gate of the MOS tube Q1; an eighth pin VIN of the constant current control chip U4 is connected to a lower end of the seventh resistor R16, and an upper end of the seventh resistor R16 is connected to an upper end of the discharge resistor R3, an upper end of the fourth resistor R4, a drain of the MOS transistor Q1, and an anode of the first LED lamp group, respectively.

A first pin BUS of the constant current control chip U5 is respectively connected with the lower end of a first resistor R1 and the upper end of a second resistor R2; a third pin REXT of the constant current control chip U5 is connected to the upper end of a sixth resistor R18, and the lower end of the sixth resistor R18 is connected to the lower end of the second resistor R2 and the ground terminal, respectively; a fourth pin REXT2 of the constant current control chip U5 is connected with the upper end of a fifth resistor R17, and the lower end of the fifth resistor R17 is connected with the lower end of a sixth resistor R18 and the ground terminal; a fifth pin OUT2 of the constant current control chip U5 is connected with the negative electrode of the second LED lamp group; a sixth pin OUT1 of the constant current control chip U5 is respectively connected with the cathode of the first LED lamp group and the anode of the first diode D1; a seventh pin EN of the constant current control chip U5 is respectively connected with the cathode of the voltage regulator tube ZD1, the lower end of the fourth resistor R4 and the gate of the MOS tube Q1; an eighth pin VIN of the constant current control chip U5 is connected to a lower end of the seventh resistor R19, and an upper end of the seventh resistor R19 is connected to an upper end of the discharge resistor R3, an upper end of the fourth resistor R4, a drain of the MOS transistor Q1, and an anode of the first LED lamp group, respectively.

After the power is switched on, the rectifying module 201 converts alternating-current voltage of a power grid into direct-current voltage and filters the direct-current voltage through the electrolytic capacitor 213, the voltage sampling module 202 samples the voltage, when the voltage is high, the constant-current control chip controls one high-voltage port to output the voltage to the LED light-emitting module 204, the first LED lamp bank is connected with the switch module in series, and the first LED lamp bank and the second LED lamp bank emit light; when the voltage is low, the constant current control chip controls the two ports to output voltage to the LED light-emitting module 204, the first LED lamp group is connected with the switch module in parallel, and the first LED lamp group and the second LED lamp group emit light. The LED lamp is controlled by double voltage input, and the circuit is simple, stable and reliable.

In some embodiments, voltage regulator ZD1 regulates the voltage of LED lighting module 204 to maintain a steady continuous lighting of the LED lamp.

In some embodiments, discharge is performed through the discharge resistor R3, so that the LED lamp is prevented from afterglow when the power is off, and instant light-off is realized.

In some embodiments, the first LED lamp set and the second LED lamp set are respectively formed by connecting a plurality of LED lamp strings in parallel, and the LED lamp strings are formed by connecting a plurality of LED lamp beads in series. Providing light of sufficient brightness.

In some embodiments, the electrolytic capacitor 213 is model number CD 11-E. Better contact with the aluminum substrate 200 and strong adhesion.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a LED bulb lamp, includes leaded light cover, lamps and lanterns main part, lamps and lanterns shell and connecting portion, lamps and lanterns main part nestification is in the lamps and lanterns shell, leaded light cover with the connection can be dismantled to the lamps and lanterns shell, connecting portion with the connection can be dismantled to the lamps and lanterns shell, its characterized in that: an aluminum substrate is arranged on the lamp main body, and is provided with:

the double-voltage input LED lamp driving circuit is welded on the aluminum substrate and comprises:

the electrolytic capacitor is directly inserted to the back of the aluminum substrate in a convex head mode;

and the patch terminal is an all-metal patch terminal, is connected with two pins of the electrolytic capacitor and is used for fixing the electrolytic capacitor on the aluminum substrate.

2. The LED bulb lamp according to claim 1, wherein: the aluminum substrate is disc-shaped.

3. The LED bulb lamp according to claim 1, wherein: the dual voltage input LED lamp driving circuit further includes: the LED light-emitting module comprises a rectifying module, a voltage sampling module, a constant current control module and an LED light-emitting module;

the constant current control module is respectively connected with the rectifying module, the voltage sampling module and the LED light-emitting module and is used for outputting voltage to the LED light-emitting module; the constant current control module comprises one or more constant current control chips, and the constant current control chips are connected in parallel; the LED light-emitting module comprises a first LED lamp group, a second LED lamp group and a switch module, wherein the anode of the first LED lamp group is connected with the cathode of a first diode, the anode of the first diode is connected with the cathode of the second LED lamp group, and one end of the switch module is respectively connected with the cathode of the first LED lamp group and the anode of the first diode.

4. The LED bulb lamp according to claim 3, wherein: the rectification module comprises a safety resistor, a rectification circuit, a voltage dependent resistor and a discharge resistor; the voltage dependent resistor is connected with the alternating current input end of the rectifying circuit in parallel, the right end of the safety resistor is connected with the alternating current input end of the rectifying circuit, and the left end of the safety resistor is connected with the fire wire end; the upper end of the electrolytic capacitor is connected with the positive polarity voltage output end of the rectifying circuit, the upper end of the discharge resistor and the positive electrode of the first LED lamp bank respectively, and the lower end of the electrolytic capacitor is connected with the lower end of the discharge resistor and the grounding end respectively.

5. The LED bulb lamp according to claim 3, wherein: the voltage sampling module comprises a first resistor, a second resistor and a first capacitor, wherein the lower end of the first resistor is respectively connected with the upper end of the second resistor and the upper end of the first capacitor; the lower end of the second resistor is respectively connected with the lower end of the first capacitor and the grounding end.

6. The LED bulb lamp according to claim 3, wherein: the first LED lamp group and the second LED lamp group are respectively formed by connecting a plurality of LED lamp strings in parallel, and each LED lamp string is formed by connecting a plurality of LED lamp beads in series.

7. The LED bulb lamp according to claim 3, wherein: the switch module comprises a voltage regulator tube, an MOS tube, a fourth resistor and a second diode; the source electrode of the MOS tube is respectively connected with the anode of the voltage stabilizing tube and the anode of the second diode; the cathode of the second diode is connected with the cathode of the first diode; the drain electrode of the MOS tube is respectively connected with the upper end of the fourth resistor and the anode of the first LED lamp group; and the grid electrode of the MOS tube is respectively connected with the negative electrode of the voltage stabilizing tube and the lower end of the fourth resistor.

8. The LED bulb lamp according to claim 1, wherein: the electrolytic capacitor is CD11-E in model.