LED Bulbs

Abstract

The present invention provides an LED light bulb, comprising a glass cover, a bracket and an LED module, wherein the bracket and the LED module are both arranged in the glass cover; the opening end of the glass cover is connected to the first end of the bracket, the bracket is used to fix the position of the LED module, and the LED module emits light toward the light-emitting side of the glass cover, and the light-emitting side is the side of the glass cover opposite to the opening end. The present invention can obtain a non-360-degree light-emitting angle, realize targeted irradiation for the irradiation range, and thus improve the light-emitting efficiency for the irradiation range.

Description

Technical Field

[0001] The invention relates to the field of lighting, and in particular to an LED bulb. Background Art

[0002] Lighting is a measure to illuminate work and living places or individual objects using various light sources. A light bulb can be understood as a device that realizes the lighting function. Among them, an LED light bulb is a light bulb with LED (Light Emitting Diode) as the light source. Among them, LED is a solid-state semiconductor device that can convert electrical energy into visible light. It can directly convert electricity into light.

[0003] Existing LED bulbs include LED filament lamps, which use LED light strips instead of traditional filaments to emit light, so as to achieve 360-degree circumferential light emission of the LED light strips; existing LED bulbs also include bulbs that use LED modules to emit light, wherein the LED modules are arranged on a base to achieve 360-degree circumferential light emission.

[0004] However, existing LED bulbs, whether filament bulbs or bulbs that use LED modules to emit light, all emit light 360 degrees in a circumferential direction. In scenarios where light is not emitted 360 degrees in a circumferential direction, the required irradiation range is relatively limited. If existing LED bulbs are used, the irradiation is not highly targeted, which will result in low light output efficiency within the irradiation range. Summary of the invention

[0005] The present invention provides an LED bulb to solve the problem of low light output efficiency within an irradiation range.

[0006] According to a first aspect of the present invention, there is provided an LED light bulb, comprising a glass cover, a bracket and an LED module, wherein the bracket and the LED module are both arranged in the glass cover;

[0007] The open end of the glass cover is connected to the first end of the bracket, and the bracket is used to fix the position of the LED module. The LED module emits light toward the light-emitting side of the glass cover, and the light-emitting side is the side of the glass cover opposite to the open end.

[0008] Optionally, the light bulb further includes: a heat sink, wherein the heat sink is disposed between the LED module and the second end of the bracket.

[0009] Optionally, the heat sink includes a heat sink body and an extension body extending from the periphery of the heat sink body, the LED module is arranged on a first side surface of the heat sink body, and the extension body is located on one side of a second side surface of the heat sink body.

[0010] Optionally, the bracket includes a bracket body and a fixing member, wherein a first end of the bracket body is connected to the open end, one end of the fixing member is connected to the bracket body, and a second end of the fixing member is connected to the heat sink to support and fix the heat sink and the LED module on the heat sink.

[0011] Optionally, the inner walls of the glass cover except the inner wall on the light-emitting side are partially or completely coated with a first coating layer having a light-reflecting effect.

[0012] Optionally, the LED module includes a substrate and a planar light source disposed on a first side of the substrate, and the planar light source faces the light emitting side.

[0013] Optionally, the light bulb further includes: a driving power supply and a conducting circuit, wherein the driving power supply is disposed at the first end of the bracket, and the conducting circuit passes through the bracket to respectively connect the LED module and the driving power supply.

[0014] Optionally, the conductive circuit includes a first circuit segment and a second circuit segment, the first end of the first circuit segment is connected to the driving power supply, the second end of the first circuit segment is connected to the first end of the second circuit segment, and the second end of the second circuit segment is connected to the LED module;

[0015] Part or all of the first line segment is inserted into the bracket, and the second line segment is located outside the bracket, so that: the bracket supports and fixes the LED module through the second line segment.

[0016] Optionally, the driving power supply includes: a rectifier circuit and a voltage-stabilizing driving circuit, the input side of the rectifier circuit is connected to an external power supply through a lamp holder, and the output side of the rectifier circuit is connected to the voltage-stabilizing driving circuit;

[0017] The rectifier circuit is used to rectify the external power supply and supply it to the voltage-stabilizing drive circuit;

[0018] The voltage-stabilizing driving circuit is used to drive the LED module to emit light using the supplied electricity.

[0019] Optionally, the voltage stabilizing driving circuit is a linear voltage stabilizing circuit.

[0020] Optionally, the voltage-stabilized driving circuit includes a voltage-current conversion subcircuit and a first resistor, the output end of the voltage-current conversion subcircuit is connected to the first end of the first resistor, the input end of the voltage-current conversion subcircuit is connected to the rectifier circuit, the sampling end of the voltage-current conversion subcircuit is connected to the second end of the first resistor, and the second end of the first resistor is connected to the LED module.

[0021] Optionally, the voltage stabilizing driving circuit is a switching voltage stabilizing circuit.

[0022] Optionally, the voltage-stabilizing drive circuit includes a voltage-current conversion subcircuit, a first resistor, a first diode, a first inductor and a first capacitor; the output end of the voltage-current conversion subcircuit is connected to the first end of the first resistor, the input end of the voltage-current conversion subcircuit is connected to the rectifier circuit, the output end of the first diode and the first end of the first resistor are both connected to the output end of the voltage-current conversion subcircuit, the first end of the first inductor and the second end of the first resistor are both connected to the sampling end of the voltage-current conversion subcircuit, the first capacitor is connected in parallel to the two ends of the LED module, the first end of the first capacitor is also connected to the second end of the first inductor, the second end of the first capacitor, the output end of the LED module and the input end of the first diode are all grounded.

[0023] Optionally, the first end of the bracket is fused and sealed with the open end of the glass cover.

[0024] The LED light bulb provided by the present invention emits light toward the light-emitting side of the glass cover through the LED module, and the light-emitting side is the side of the glass cover opposite to the opening end. The LED module has a single direction, and a non-360-degree light-emitting angle can be obtained, thereby achieving targeted illumination of the irradiation range, thereby improving the light-emitting efficiency of the irradiation range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 This is a schematic diagram of the structure of an LED bulb of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of an LED bulb of the present invention. Figure 2 ;

[0028] Figure 3 It is a structural schematic diagram of a glass cover of the present invention;

[0029] Figure 4 This is a schematic diagram of a driving power supply circuit of the present invention. Figure 1 ;

[0030] Figure 5 This is a schematic diagram of a driving power supply circuit of the present invention. Figure 2 .

[0031] Description of reference numerals:

[0032] 1- Glass cover;

[0033] 10- light output side;

[0034] 11-open end;

[0035] 2-LED module;

[0036] 21- Planar light source

[0037] 22-Substrate;

[0038] 3- heat sink;

[0039] 31- heat dissipation body;

[0040] 32- extension body;

[0041] 4-Conduction circuit;

[0042] 41-first line segment;

[0043] 42-second line section;

[0044] 5- Bracket;

[0045] 51-fixing member;

[0046] 52- bracket body;

[0047] 6- Circuit board;

[0048] 7- driving power supply;

[0049] 8-lamp holder;

[0050] 9-first coating layer;

[0051] U0-external power supply;

[0052] U1-rectifier circuit;

[0053] U2-voltage-current conversion subcircuit;

[0054] C1-first capacitor;

[0055] C2-second capacitor;

[0056] C3-third capacitor;

[0057] R1-first resistor;

[0058] T1-first inductor;

[0059] D1 - First diode. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0062] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0063] Figure 1 This is a schematic diagram of the structure of an LED bulb of the present invention. Figure 1 .

[0064] Figure 2 This is a schematic diagram of the structure of an LED bulb of the present invention. Figure 2 .

[0065] Please refer to Figure 1 and Figure 2 The light bulb comprises: a glass cover 1, a bracket 5 and an LED module 2, wherein the bracket 5 and the LED module 2 are both arranged in the glass cover 1.

[0066] The open end 11 of the glass cover 1 is connected to the first end of the bracket 5, and the bracket 5 is used to fix the position of the LED module 2. The LED module 2 emits light toward the light-emitting side 10 of the glass cover 1, and the light-emitting side 10 is the side of the glass cover 1 opposite to the open end 11.

[0067] The glass cover 1 can be understood as a cover made of glass, which is transparent and can transmit light. In the specific implementation process, the material and structure of the glass cover 1 are specifically designed to further optically process the emitted light.

[0068] The bracket 5 can be understood as a structure that is relatively fixed to the position of the glass cover 1 and can fix the position of the LED module 2. The fixing effect on the LED module 2 can be direct or indirect. In addition, the role of the bracket 5 is not limited to fixing the position of the LED module 2, and can also achieve the position fixing of components such as the heat sink 3 and the conductive circuit 4.

[0069] The LED module 2 may be understood as any module that is disposed toward the light emitting side 10 and uses an LED (Light Emitting Diode) as a light source.

[0070] The direction of the light emitting side 10 can be understood as being towards a desired irradiation range.

[0071] The LED light bulb provided by the present invention emits light toward the light-emitting side of the glass cover through the LED module, and the light-emitting side is the side of the glass cover opposite to the opening end. The LED module has a single direction, and a non-360-degree light-emitting angle can be obtained, thereby achieving targeted illumination of the irradiation range, thereby improving the light-emitting efficiency of the irradiation range.

[0072] In one embodiment, the light bulb further includes a heat sink 3, which is disposed between the LED module 2 and the second end of the bracket 5 and can be used to dissipate heat for the LED module 2 through heat conduction.

[0073] The heat sink 3 may be made of metal or non-metal, and may be an integrally formed structure or a non-integrated structure.

[0074] In one embodiment, the heat sink 3 includes a heat sink body 31 and an extension body 32 extending from the periphery of the heat sink body 31 , the LED module 2 is arranged on a first side of the heat sink body 31 , and the extension body 32 is located on one side of the second side of the heat sink body 31 .

[0075] In one implementation manner, the bracket 5 may be connected and supported to the second side surface of the heat dissipation body 31 , and the extension body 32 is located on the outer side of the bracket 5 .

[0076] The extension body 32 and the heat dissipation body 31 may be an integrally formed structure to improve the efficiency of heat conduction in the heat dissipation element 3 . At the same time, the extension body 32 and the heat dissipation body 31 can effectively increase the heat dissipation area and improve the heat dissipation effect.

[0077] The extension body 32 may be perpendicular to the heat dissipation body 31, and the heat dissipation body 31 may be circular to achieve uniform heat dissipation. The extension body 32 may also be provided with a notch. The heat dissipation body 31 may also be provided with a through hole for the conducting line 4 to pass through.

[0078] In addition, the thickness of the heat dissipation body 31 may be the same as or different from the thickness of the extension body 32 .

[0079] In one embodiment, the first end of the bracket 5 is fused and sealed with the open end of the glass cover 1 to achieve a stable connection between the bracket 5 and the glass cover 1 and ensure the sealing inside the glass cover 1.

[0080] In one embodiment, the bracket 5 may include a bracket body 52 and a fixing member 51, wherein the first end of the bracket body 52 is connected to the open end 11, the first end of the fixing member 51 is connected to the bracket body 52, and the second end of the fixing member 51 is connected to the heat sink 3 to support and fix the heat sink 3 and the LED module 2 on the heat sink 3. Specifically, the fixing member 51 may be connected to the second side of the heat sink body 31. The bracket body 52 may be made of glass material, which is melt-sealed with the glass cover 1. The fixing member 51 may be made of non-glass material or glass material. The extension 32 of the heat sink 3 may cover the outer side of the fixing member 51.

[0081] The first end of the fixing member 51 may also be movably connected to the bracket body 52 to achieve position adjustment of the fixing member 51 relative to the bracket body 5 .

[0082] In one embodiment, the LED module 2 includes a substrate 22 and a planar light source 21 disposed on a first side of the substrate 22 , and the planar light source 21 faces the light emitting side 10 .

[0083] The number of substrates 22 in the LED module 2 can be one, which can be made of non-transparent materials, specifically, a metal substrate or a ceramic substrate. The number of planar light sources 21 can be one or more. The planar light source 21 can specifically include LED particles connected in series.

[0084] Figure 3 It is a structural schematic diagram of a glass cover of the present invention.

[0085] Please refer to Figure 3 The inner wall of the glass cover 1, except the inner wall of the light-emitting side 10, is partially or completely coated with a first coating layer 9 having a reflective effect. At the same time, it is not excluded that the inner wall of the light-emitting side 10 is also provided with a second coating layer, and the second coating layer of the light-emitting side 10 may have a different structure from the first coating layer 9, and its reflective effect may also be different.

[0086] Through the reflection of the first coating layer 9, the light output to the first coating layer 9 can be reflected to the light output side 10, so as to achieve the guided output of light, thereby improving the light output efficiency of the LED bulb for the irradiation range. Compared with using a shielding structure to shield the remaining inner walls, such as a plastic shell, this embodiment can further improve the light output efficiency.

[0087] In addition, the first coating layer 9 may be a single layer or multiple layers, as long as it has a reflective effect, even if it can also achieve other functions, it does not deviate from the description scope of this embodiment.

[0088] In one embodiment, the light bulb further includes: a driving power supply 7 and a conducting circuit 4, wherein the driving power supply 7 is disposed at a first end of the bracket 5, and the conducting circuit 4 passes through the bracket 5 to respectively connect the LED module 2 and the driving power supply 7.

[0089] The conducting circuit 4 can be understood as any circuit structure that can achieve conduction. The conducting circuit 4 can specifically pass through the through holes on the bracket body 52 of the bracket 5 and the heat dissipation body 31 to connect the LED module 2. The LED module 2 can also be provided with a conducting member to connect the conducting circuit 4.

[0090] In one embodiment, the conductive circuit 4 includes a first circuit segment 41 and a second circuit segment 42, the first end of the first circuit segment 41 is connected to the driving power supply 7, the second end of the first circuit segment 41 is connected to the first end of the second circuit segment 42, and the second end of the second circuit segment 42 is connected to the LED module 2.

[0091] The first line segment 41 is partially or completely arranged in the bracket 5, and the second line segment 42 is located outside the bracket 5, so that the bracket 5 supports and fixes the LED module 2 through the second line segment 42. In addition, the shapes of the first line segment 41 and the second line segment 42 can be changed according to the requirements of their structure and the difference in materials. The first line segment 41 and the second line segment 42 can be integrated.

[0092] It can be seen that the way in which the bracket 5 indirectly fixes the position of the LED module 2 can be achieved by only supporting and fixing the heat sink 3 and the LED module 2 thereon through the fixing member 51 of the bracket 5, or by only supporting and fixing at least one of the heat sink 3 and the LED module 2 through the second line segment 42, or by using both the second line segment 42 and the fixing member 51 for support and fixation to achieve a stable support and fixation effect; for example, the fixing member 51 can be supported on the second side surface of the heat sink 3, and it can be fixed to the heat sink 3 or not, and the second line segment 42 is fixed to at least one of the heat sink 3 and the LED module 2.

[0093] In addition, the number of the second line segments 42 can be two, which can be respectively connected to different positions of the LED module 2. On the basis of realizing the connection loop, it can also play a multi-point support effect to ensure the stability of the position of the LED module 2.

[0094] Please refer to Figure 1 and Figure 2 The light bulb may further include a lamp holder 8, which is connected to the opening end 11 of the glass cover 1 and can be used to achieve conduction between the circuit inside the light bulb and the external power supply U0. The lamp holder 8 can be connected to the driving power supply 7 internally and to the external power supply U0 externally.

[0095] Figure 4 This is a schematic diagram of a driving power supply circuit of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of a driving power supply circuit of the present invention. Figure 2 .

[0096] Please refer to Figure 4 and Figure 5 The driving power supply 7 includes: a rectifier circuit U1 and a voltage-stabilizing driving circuit. The input side of the rectifier circuit U1 is connected to an external power supply U0 through a lamp holder 8, and the output side of the rectifier circuit U1 is connected to the voltage-stabilizing driving circuit.

[0097] The rectifier circuit U1 is used to rectify the external power supply U0 and supply it to the voltage stabilizing drive circuit; a third capacitor C3 can be connected in parallel to the first side of the rectifier circuit U1; a second capacitor C2 can be connected in parallel to the second side of the rectifier circuit U1 to achieve voltage stabilization.

[0098] The voltage-stabilizing driving circuit is used to drive the LED module 2 to emit light using the supplied electricity. It can drive the planar light source 21 in the LED module 2 to emit light. The planar light source 21 may include LED particles connected in series. The connection relationship between different planar light sources 21 can be in series or in parallel.

[0099] Please refer to Figure 4 , the voltage stabilizing driving circuit can be a linear voltage stabilizing circuit.

[0100] In one embodiment, the voltage-stabilized driving circuit includes a voltage-current conversion subcircuit U2 and a first resistor R1. The output end of the voltage-current conversion subcircuit U2 is connected to the first end of the first resistor R1, the input end of the voltage-current conversion subcircuit U2 is connected to the rectifier circuit U1, the sampling end of the voltage-current conversion subcircuit U2 is connected to the second end of the first resistor R1, and the second end of the first resistor R1 is connected to the LED module 2. The voltage-current conversion subcircuit U2 can be used to utilize the supplied electricity to output a constant current source, and the constant current source is supplied to the LED module 2 after voltage division by the first resistor R1. In one embodiment, the voltage-current conversion subcircuit U2 may include a controller and a switching device, the input end of the switching device is connected to the rectifier circuit U1, the output end of the switching device is connected to the first end of the first resistor R1, the control end of the switching device is connected to the output end of the controller, the power supply end of the controller can be connected to the rectifier circuit U1, the enable end of the controller can input a high level to enable it to work, the sampling end of the voltage-current conversion subcircuit U2 is connected to the second end of the first resistor R1, the sampling end can be a signal input end of the controller, the second end of the first resistor R1 is also connected to the LED module 2, and the controller can be used to control the operation of the switching device according to the electrical signal collected by the sampling end.

[0101] Please refer to Figure 5 , the voltage stabilizing driving circuit can be a switching voltage stabilizing circuit.

[0102] If the voltage stabilizing driving circuit is a switching voltage stabilizing circuit, it may also include one of the following:

[0103] Step-down conversion circuit (Buck circuit);

[0104] Switching DC boost circuit (BOOST circuit);

[0105] Flyback conversion circuit (Flyback circuit).

[0106] If a step-down conversion circuit is used, the output voltage can be made lower than the input voltage, and the output current is continuous.

[0107] In one embodiment, the voltage stabilizing driving circuit includes a voltage-current conversion subcircuit U2, a first resistor R1, a first diode D1, a first inductor T1 and a first capacitor C1. The voltage-current conversion subcircuit U2 can be used to utilize the supplied electrical output current.

[0108] The voltage-current conversion subcircuit U2 may include a controller and a switching device, wherein the input end of the switching device is connected to the rectifier circuit U1, the output end of the switching device is connected to the first end of the first resistor R1, the control end of the switching device is connected to the output end of the controller, the power supply end of the controller may be connected to the rectifier circuit U1, and the enable end of the controller may input a high level to enable it to work; the sampling end of the voltage-current conversion subcircuit U2 is connected to the second end of the first resistor R1, the sampling end may be a signal input end of the controller, the second end of the first resistor R1 is also connected to the LED module 2, and the controller may be used to control the operation of the switching device according to the electrical signal collected by the sampling end.

[0109] In the specific implementation process, the voltage-current conversion subcircuit U2 outputs low-voltage direct current through the first resistor R1, the first inductor T1, the first diode D1 and the first capacitor C1, so as to supply it to the LED module 2. Among them, the input end of the first diode D1 is connected to the output end of the LED module 2, and the output end of the first diode D1 is connected to the first end of the first resistor R1, that is, connected to the output end of the voltage-current conversion subcircuit U2; the first end of the first inductor T1 is connected to the second end of the first resistor R1, that is, connected to the sampling end of the voltage-current conversion subcircuit U2, and the first capacitor C1 is connected in parallel to the two ends of the LED module 2, and its first end is connected to the second end of the first inductor T1. At the same time, the second end of the first capacitor C1, the output end of the LED module 2 and the input end of the first diode D1 are all grounded.

[0110] Its working principle can be simply described as follows:

[0111] By controlling the switch device, when it is turned on, the first inductor T1 can be controlled to be magnetized, and the current flowing through the first inductor T1 can be linearly increased. At the same time, the first capacitor C1 can be charged to provide power to the LED module 2; when it is turned off, the first inductor T1 can be controlled to discharge through the first diode D1, and the current of the first inductor T1 can be linearly reduced, and the output voltage is maintained by the discharge of the first capacitor C1 and the reduced inductor current.

[0112] In summary, the LED light bulb provided by the present invention emits light through the LED module toward the light-emitting side of the glass cover, and the light-emitting side is the side of the glass cover opposite to the opening end. The LED module has a single orientation and can obtain a non-360-degree light-emitting angle, thereby achieving targeted illumination of the irradiation range, thereby improving the light-emitting efficiency of the irradiation range.

[0113] In the description of the present invention, it is necessary to understand that the terms used, such as “center”, “length”, “width”, “thickness”, “top”, “bottom”, “up”, “down”, “left”, “right”, “front”, “back”, “vertical”, “horizontal”, “inside”, “outside”, “axial”, and “circumferential”, to indicate positions or positional relationships may be based on the positions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific orientation, a specific structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0114] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected, electrically connected, or can communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, so that the internal communication of two elements or the interaction relationship between two elements can be achieved. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An LED light bulb, characterized in that: It includes a glass cover, a bracket and an LED module, wherein the bracket and the LED module are both arranged in the glass cover; The open end of the glass cover is connected to the first end of the bracket, and the bracket is used to fix the position of the LED module. The LED module emits light toward the light-emitting side of the glass cover, and the light-emitting side is the side of the glass cover opposite to the open end; It also includes a driving power supply and a conducting circuit, wherein the driving power supply is arranged at the first end of the bracket, and the conducting circuit passes through the bracket to respectively connect the LED module and the driving power supply; The conducting circuit includes a first circuit segment and a second circuit segment, the first end of the first circuit segment is connected to the driving power supply, the second end of the first circuit segment is connected to the first end of the second circuit segment, and the second end of the second circuit segment is connected to the LED module; Wherein, the first line segment is partially or completely arranged in the bracket, and the second line segment is located outside the bracket, and the bracket supports and fixes the LED module through the second line segment; The second line segment includes two segments, and is respectively connected to different positions of the LED module; The driving power supply includes: a rectifier circuit and a voltage-stabilizing driving circuit, the input side of the rectifier circuit is connected to an external power supply through a lamp holder, and the output side of the rectifier circuit is connected to the voltage-stabilizing driving circuit; The rectifier circuit is used to rectify the external power supply and supply it to the voltage-stabilizing drive circuit; The voltage-stabilizing driving circuit is used to drive the LED module to emit light using the supplied electricity; A third capacitor is connected in parallel to the first side of the rectifier circuit, and a second capacitor is connected in parallel to the second side of the rectifier circuit, for achieving voltage stabilization.

2. The light bulb according to claim 1, characterized in that Also includes: A heat sink is disposed between the LED module and the second end of the bracket.

3. The light bulb according to claim 2, characterized in that The heat sink comprises a heat sink body and an extension body extending from the periphery of the heat sink body, the LED module is arranged on a first side surface of the heat sink body, and the extension body is located on one side of a second side surface of the heat sink body.

4. The light bulb according to claim 2, characterized in that The bracket includes a bracket body and a fixing member, wherein the first end of the bracket body is connected to the open end, the first end of the fixing member is connected to the bracket body, and the second end of the fixing member is connected to the heat sink to support and fix the heat sink and the LED module on the heat sink.

5. The light bulb according to any one of claims 1 to 4, characterized in that: The inner walls of the glass cover except the inner wall on the light-emitting side are partially or completely coated with a first coating layer having a light-reflecting effect.

6. The light bulb according to any one of claims 1 to 4, characterized in that: The LED module includes a substrate and a planar light source disposed on a first side of the substrate, wherein the planar light source faces the light emitting side.

7. The light bulb according to any one of claims 1 to 4, characterized in that: The voltage stabilization driving circuit is a linear voltage stabilization circuit.

8. The light bulb according to any one of claims 1 to 4, characterized in that: The voltage-stabilizing driving circuit includes a voltage-current conversion subcircuit and a first resistor, wherein the output end of the voltage-current conversion subcircuit is connected to the first end of the first resistor, the input end of the voltage-current conversion subcircuit is connected to the rectifier circuit, the sampling end of the voltage-current conversion subcircuit is connected to the second end of the first resistor, and the second end of the first resistor is connected to the LED module.

9. The light bulb according to any one of claims 1 to 4, characterized in that: The voltage stabilizing driving circuit is a switching voltage stabilizing circuit.

10. The light bulb according to any one of claims 1 to 4, characterized in that: The voltage-stabilizing driving circuit includes a voltage-current conversion subcircuit, a first resistor, a first diode, a first inductor and a first capacitor; the output end of the voltage-current conversion subcircuit is connected to the first end of the first resistor, the input end of the voltage-current conversion subcircuit is connected to the rectifier circuit, the output end of the first diode and the first end of the first resistor are both connected to the output end of the voltage-current conversion subcircuit, the first end of the first inductor and the second end of the first resistor are both connected to the sampling end of the voltage-current conversion subcircuit, the first capacitor is connected in parallel to the two ends of the LED module, the first end of the first capacitor is also connected to the second end of the first inductor, the second end of the first capacitor, the output end of the LED module and the input end of the first diode are all grounded.

11. The light bulb according to any one of claims 1 to 4, characterized in that: The first end of the bracket is fused and sealed with the open end of the glass cover.

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