An LED lamp

Abstract

The utility model discloses a LED lamp, including lampwick, two inner silk, center support, first support piece, second support piece and a plurality of filament strips, first support piece includes two electrically isolated support piece body, and support piece body is used for with corresponding one inner silk connection and electric connection, and is equipped with first fixed hole on support piece body all, second support piece and center support fixed connection and located first support piece deviating from the one side of lampwick, and second support piece is equipped with second fixed hole, and the both ends of filament strip are connected with respectively after passing first fixed hole relative to the first connecting piece of filament strip bending, and the second connecting piece of passing second fixed hole relative to the filament strip bending, and first connecting piece makes filament strip with support piece body opposite fixed and electric connection, and second connecting piece makes filament strip with second support piece opposite fixed and electric connection, need not welding to realize filament strip and first connecting piece and second connecting piece fixed, to ensure the reliable connection of filament.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to an LED lamp. Background Technology

[0002] LED (Light Emitting Diode) filament lamps are currently used to replace traditional gas discharge lamps. Multiple LED filaments in an LED filament lamp are welded to a support using a series-parallel connection technology. To increase heat dissipation, the filament substrate is typically no more than 0.25mm thick. To fix the filaments to the support, DC or AC spot welding is commonly used for physical connection. Due to the difference in size between the filaments and the support, the welding current during the welding process can significantly affect the welding quality. Specifically: too low a current can cause incomplete fusion between the surfaces, leading to filament detachment after production and product transportation; too high a current can cause burn-through at both ends of the filament, directly resulting in the scrapping of the filament during production.

[0003] Therefore, ensuring a reliable connection of the filament is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide an LED lamp that ensures a reliable connection of the filament.

[0005] To achieve the above objectives, this utility model provides an LED light, comprising:

[0006] Lamp wick;

[0007] Both inner guide wires are fixedly connected to the lamp wick;

[0008] The central bracket is fixedly connected to the lamp wick;

[0009] The first support piece includes two electrically isolated support piece bodies, and the support piece bodies are used to connect and electrically connect with a corresponding inner guide wire. Each support piece body is provided with a first fixing hole.

[0010] The second support piece is fixedly connected to the central bracket and located on the side of the first support piece away from the lamp core. The second support piece is provided with a second fixing hole.

[0011] Several filament strips are located between a first support plate and a second support plate. Each end of the filament strip is connected to a first connecting plate that passes through a first fixing hole and bends relative to the filament strip, and a second connecting plate that passes through a second fixing hole and bends relative to the filament strip. The first connecting plate is used to fix the filament strip relative to the support plate body and electrically connect it, and the second connecting plate is used to fix the filament strip relative to the second support plate and electrically connect it.

[0012] In one possible implementation, the first connecting piece includes a first connecting segment and a first bent segment that are perpendicular to each other. The first connecting segment is connected to one end of the filament strip facing the first support piece, and the first bent segment is connected to one end of the first connecting segment away from the filament strip. The first bent segment is also attached to the side of the first support piece away from the filament strip.

[0013] The second connecting piece includes a second connecting section and a second bending section that are perpendicular to each other. The second connecting section is connected to the end of the filament strip facing the second support piece, and the second bending section is connected to the end of the second connecting section away from the filament strip. The second bending section is attached to the side of the second support piece away from the filament strip.

[0014] In one possible implementation, the first fixing holes are evenly arranged in the circumferential direction of the first support piece, and the second fixing holes are evenly arranged in the circumferential direction of the second support piece, and the number of the first fixing holes and the number of the second fixing holes are the same.

[0015] In one possible implementation, the inner guide wire includes a first extension connected to the lamp core and a second extension connected to the end of the first extension opposite to the lamp core, the second extension being located on the opposite side of the two first extensions.

[0016] The support plate body is provided with a first fixing member on the side facing the lamp core. The first fixing member can surround the outer periphery of the second extension section, so that the support plate body and the second extension section are relatively fixed and electrically connected.

[0017] In one possible implementation, the two first extensions are parallel to each other, the first extensions are perpendicular to each other and the second extensions are collinear.

[0018] In one possible implementation, a crossbeam is connected to the end of the central support away from the lamp core, and a second fixing member is provided on the side of the second support piece away from the lamp core. The second fixing member can wrap around the outer periphery of the crossbeam, so that the second support piece is fixed relative to the central support.

[0019] In one possible implementation, a reflector is fixed to the outer periphery of the wick, and the side of the reflector facing the filament strip is perpendicular to the extension direction of the filament strip.

[0020] In one possible implementation, the system further includes a housing with a receiving cavity. The inner guide wire, filament strip, central support, first support plate, and second support plate are all located within the receiving cavity. The lamp core is fixed to the opening of the receiving cavity, thereby fixing the housing and the lamp core together and sealing the receiving cavity. The receiving cavity is filled with cooling circulating gas to transfer the heat generated by the filament strip to the surface of the housing for heat dissipation.

[0021] In one possible implementation, the cooling circulating gas includes helium, argon, and hydrogen.

[0022] In one possible implementation, a lamp holder is also included, which is connected to the outer casing via a drive power supply housing. The drive power supply housing contains a drive power supply for electrical energy, with the input terminal of the drive power supply connected to the lamp holder and the output terminal of the drive power supply connected to the inner guide wire.

[0023] Compared to the aforementioned background technology, the LED lamp provided by this utility model includes a lamp core, two inner guide wires, a central support, a first support plate, a second support plate, and several filament strips. All inner guide wires are fixedly connected to the lamp core. The central support is fixedly connected to the lamp core. The first support plate includes two electrically isolated support plate bodies, each used to connect and electrically connect with a corresponding inner guide wire. Each support plate body has a first fixing hole. The second support plate is fixedly connected to the central support and located on the side of the first support plate away from the lamp core. The second support plate has a second fixing hole. The filament strips are located between the first and second support plates. Each end of the filament strip is connected to a first connecting piece that passes through the first fixing hole and bends relative to the filament strip, and a second connecting piece that passes through the second fixing hole and bends relative to the filament strip. The first connecting piece is used to fix and electrically connect the filament strip to the support plate body, and the second connecting piece is used to fix and electrically connect the filament strip to the second support plate.

[0024] Specifically, both the first and second support plates are fixed relative to the lamp core. The first support plate includes two electrically isolated support plate bodies, and each support plate body has a first fixing hole. The second support plate is located on the side of the first support plate away from the lamp core, and the second support plate has a second fixing hole. The filament strip is located between the first and second support plates. A first connecting piece connected to one end of the filament strip passes through the first fixing hole and bends relative to the filament strip, and a second connecting piece connected to the other end of the filament strip passes through the second fixing hole and bends relative to the filament strip. This achieves the limitation of the movement of the filament strip relative to the first and second connecting pieces. The filament strip can be fixed to the first and second connecting pieces without welding, which can ensure the reliable connection of the filament. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the LED lamp provided in an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the LED lamp provided in this embodiment of the present utility model when the outer shell is removed;

[0028] Figure 3 This is a structural schematic diagram of the LED lamp provided in this embodiment of the present invention with its outer casing removed, viewed from another angle.

[0029] Figure 4 A schematic diagram of the LED lamp provided in this embodiment of the utility model, with the outer shell and driver power supply shell removed;

[0030] Figure 5 This is a schematic diagram of the structure of the second support piece provided in an embodiment of the present utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the second support piece provided in an embodiment of the present utility model from another perspective.

[0032] Figure 7 This is a schematic diagram of the structure of the first support piece provided in an embodiment of the present utility model.

[0033] in:

[0034] 1-Lamp wick, 11-Reflector;

[0035] 2-Inner guidewire;

[0036] 3-Central support, 31-Crossbeam;

[0037] 4-First support piece, 41-Support piece body, 411-First fixing hole, 42-First fixing member;

[0038] 5-Second support piece, 51-Second fixing hole, 52-Second fixing member;

[0039] 6-Filament strip, 61-First connecting piece, 62-Second connecting piece;

[0040] 7-Outer casing;

[0041] 8 - Drive power supply housing, 81 - Drive power supply;

[0042] 9-Lamp holder. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] In the description of this utility model, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0046] The purpose of this invention is to provide an LED lamp that ensures a reliable connection of the filament.

[0047] Please see Figure 1 , Figure 2 and Figure 3 To achieve the above objectives, this utility model provides an LED lamp, including a lamp core 1, two inner guide wires 2, a central support 3, a first support plate 4, a second support plate 5, and several filament strips 6. The inner guide wires 2 are all fixedly connected to the lamp core 1. The central support 3 is fixedly connected to the lamp core 1 and is a rod structure. The two inner guide wires 2 are spaced apart and located on both sides of the central support 3.

[0048] Please see Figure 7 The first support plate 4 includes two electrically isolated support plate bodies 41, and the support plate bodies 41 are used to connect and electrically connect with a corresponding inner guide wire 2. Each support plate body 41 is provided with a first fixing hole 411. When the first support plate 4 adopts an integral structure, insulation treatment can be performed between the two support plate bodies 41. The first fixing holes 411 are evenly arranged in the circumferential direction of the first support plate 4. When the first support plate 4 adopts a split structure, the two support plate bodies 41 can be set at a preset distance.

[0049] Please see Figure 5 The second support plate 5 is fixedly connected to the central bracket 3 and is located on the side of the first support plate 4 away from the lamp core 1. The second support plate 5 is provided with a second fixing hole 51. The second fixing holes 51 are evenly arranged in the circumferential direction of the second support plate 5, and the number of the first fixing holes 411 and the second fixing holes 51 is consistent. In order to facilitate the installation of the filament strip 6, the positions of the first fixing holes 411 and the second fixing holes 51 can be matched one by one, that is, the extension directions of the corresponding first fixing holes 411 and the second fixing holes 51 are consistent.

[0050] The filament strips 6 are located between the first support plate 4 and the second support plate 5. The two ends of the filament strips 6 are respectively connected to a first connecting piece 61 that passes through the first fixing hole 411 and bends relative to the filament strip 6, and a second connecting piece 62 that passes through the second fixing hole 51 and bends relative to the filament strip 6. The first connecting piece 61 is used to fix the filament strip 6 relative to the support plate body 41 and electrically connect it, and the second connecting piece 62 is used to fix the filament strip 6 relative to the second support plate 5 and electrically connect it.

[0051] The shape and structure of the filament strip 6 can be adjusted according to actual needs, such as a rod-shaped structure or a strip-shaped structure; the number of filament strips 6 can be adjusted according to actual needs, for example, four filament strips 6 are connected in parallel between one support plate body 41 and the second support plate 5, and six filament strips 6 are connected in parallel between the other support plate body 41 and the second support plate 5; the number of the first fixing hole 411 and the second fixing hole 51 can be adjusted according to actual needs. The first fixing hole 411 and the second fixing hole 51 can be rectangular through holes with cross-sectional dimensions that match the cross-sectional dimensions of the first connecting plate 61 and the second connecting plate 62, as long as the above purpose can be achieved.

[0052] Both the first support plate 4 and the second support plate 5 are fixed relative to the lamp core 1. The first support plate 4 includes two electrically isolated support plate bodies 41, and the support plate body 41 is provided with a first fixing hole 411. The second support plate 5 is located on the side of the first support plate 4 away from the lamp core 1, and the second support plate 5 is provided with a second fixing hole 51. The filament strip 6 is located between the first support plate 4 and the second support plate 5. The first connecting piece 61 connected to one end of the filament strip 6 passes through the first fixing hole 411 and bends relative to the filament strip 6. The second connecting piece 62 connected to the other end of the filament strip 6 passes through the second fixing hole 51 and bends relative to the filament strip 6. This achieves the limitation of the movement of the filament strip 6 relative to the first connecting piece 61 and the second connecting piece 62. The filament strip 6 can be fixed to the first connecting piece 61 and the second connecting piece 62 without welding, which can ensure the reliable connection of the filament and reduce quality problems such as desoldering caused by unreliable welding.

[0053] It should be noted that both the support plate body 41 and the second support plate 5 are made of conductive materials, such as pure nickel or stainless steel. The thickness of the support plate body 41 and the second support plate 5 is consistent with the thickness of the first connecting piece 61 and the second connecting piece 62, for example, 0.2mm-0.35mm. After the current flows into the corresponding support plate body 41 along one of the two inner conductors 2, it is transmitted along the filament strip 6 to the second support plate 5, and then through the filament strip 6 connected to the other support plate body 41 to the other support plate body 41, and then flows out along the other inner conductor 2. The first connecting piece 61 and the second connecting piece 62 are both conductive connecting pieces to ensure that the filament strip 6 is electrically connected to the support plate body 41 and the second support plate 5.

[0054] In one possible implementation, the first connecting piece 61 includes a first connecting segment and a first bent segment that are perpendicular to each other. The first connecting segment is connected to the end of the filament strip 6 facing the first support piece 4, and the first bent segment is connected to the end of the first connecting segment away from the filament strip 6. The first bent segment is attached to the side of the first support piece 4 away from the filament strip 6. The extension direction of the filament strip 6 is perpendicular to the side of the first support piece 4 facing the filament strip 6. The extension direction of the bendable first connecting piece 61 can be set to be consistent with the extension direction of the filament strip 6. After the first connecting piece 61 passes through the first fixing hole 411, the first connecting piece 61 is bent at 90° to form the first bent segment and the first connecting segment that are perpendicular to each other. The first bent segment is attached to the side of the first support piece 4 away from the filament strip 6. This is used to restrict the first connecting piece 61 from moving in the opposite direction to the direction of entering the first fixing hole 411, that is, to restrict the filament strip 6 from moving away from the first support piece 4 in its own extension direction.

[0055] The second connecting piece 62 includes a second connecting section and a second bent section that are perpendicular to each other. The second connecting section is connected to the end of the filament strip 6 facing the second support piece 5, and the second bent section is connected to the end of the second connecting section away from the filament strip 6. The second bent section is attached to the side of the second support piece 5 away from the filament strip 6. The extension direction of the bendable second connecting piece 62 can be set to be consistent with the extension direction of the filament strip 6. After the second connecting piece 62 passes through the second fixing hole 51, the second connecting piece 62 is bent at 90° to form a second bent section and a second connecting section that are perpendicular to each other. The second bent section is attached to the side of the second support piece 5 away from the filament strip 6. This is used to restrict the movement of the second connecting piece 62 in the opposite direction to the direction of entering the second fixing hole 51, that is, to restrict the movement of the filament strip 6 in its own extension direction toward the direction closer to the first support piece 4.

[0056] In one possible implementation, the inner guide wire 2 includes a first extension connected to the lamp wick 1 and a second extension connected to the end of the first extension facing away from the lamp wick 1. The first extension and the second extension are perpendicular to each other, and the second extension is located on the side opposite to the two first extensions. The two first extensions of the two inner guide wires 2 are parallel to each other, and the axes of the two second extensions are collinear. The support plate body 41 is provided with a first fixing member 42 on the side facing the lamp wick 1. The first fixing member 42 can surround the outer periphery of the second extension, so that the support plate body 41 and the second extension are relatively fixed and electrically connected.

[0057] The first fixing member 42 can be two bendable and relatively parallel metal sheets. By moving the two metal sheets away from the end of the support sheet body 41 towards each other, the metal sheets are bent and attached to the corresponding second extension section. Regardless of whether the two support sheet bodies 41 are directly connected, they can be electrically connected to and relatively fixed to the corresponding inner guide wire 2 through the first fixing member 42 provided on the support sheet body 41. The second extension section can be attached to the side of the support sheet body 41 facing the inner guide wire 2 to support the support sheet body 41. The metal sheet and the inner guide wire 2 are welded together for reinforcement.

[0058] Please see Figure 6 In one possible implementation, the end of the central support 3 facing away from the lamp core 1 is connected to a crossbeam 31. The side of the second support piece 5 facing away from the lamp core 1 is provided with a second fixing member 52. The second fixing member 52 can wrap around the outer periphery of the crossbeam 31, so that the second support piece 5 is relatively fixed to the central support 3. The crossbeam 31 is parallel to the side of the first support piece 4 facing the filament strip 6. By setting the crossbeam 31, the side of the second support piece 5 fixed to the crossbeam 31 is parallel to the side of the first support piece 4 facing away from it, so as to ensure that the distance between the corresponding first fixing hole 411 and the second fixing hole 51 is consistent. The second fixing member 52 can also be two bendable and relatively parallel metal pieces. By moving the ends of the two metal pieces facing away from the second support piece 5 towards each other, the metal pieces are bent and tightly attached to the crossbeam 31, and welded at the connection between the metal pieces and the crossbeam 31 for reinforcement.

[0059] Please see Figure 4 In the prior art, due to the power limitation of a single LED filament strip 6, multiple LED filament strips 6 need to be arranged in a ring to achieve the required effect. However, the ring arrangement is usually 40mm-50mm in diameter, which makes the central light intensity of the filament lamp lower than the peripheral light intensity when it is lit vertically. This results in a dark area in the center of the illuminated object. In this application, a reflector 11 is also fixed on the outer periphery of the lamp core 1. The reflector 11 is located on the side of the first support plate 4 away from the second support plate 5, and the side of the reflector 11 facing the filament strip 6 is perpendicular to the extension direction of the filament strip 6. The reflector 11 can be made of aluminum material by stamping. When the filament strip 6 is working, the light shining on the lamp head 9 is reflected by the reflector 11 to the center position of the above-mentioned ring arrangement to increase the central light intensity value. An opening can be opened on the reflector 11 so that the reflector 11 has a structure similar to a snap ring. The reflector 11 is installed and fixed by engaging with the recessed area on the lamp core 1 through the opening.

[0060] In one possible implementation, the LED lamp further includes a housing 7 with a receiving cavity. The inner guide wire 2, filament strip 6, central support 3, first support plate 4, and second support plate 5 are all located within the receiving cavity. The housing 7 and the lamp core 1 are sealed together using glass sealing technology, fixing the lamp core 1 to the opening of the receiving cavity. The housing 7 and the lamp core 1 are fixedly connected and the receiving cavity is sealed. After evacuating the receiving cavity using specialized equipment, a cooling circulating gas is introduced to transfer the heat generated by the filament strip 6 to the surface of the housing 7 for heat dissipation. The cooling circulating gas includes helium, argon, and hydrogen. The helium content in the cooling circulating gas is 70-80%, the argon content is 10-20%, and the hydrogen content is 10-20%, with each gas having a purity of 99% or higher. The total pressure inside the cavity is 0.7-0.8 kPa. Hydrogen with high thermal conductivity is added to the circulating cooling gas to reduce the temperature of the filament strip 6, which meets the requirement that the luminous efficacy decreases by about 5% when the lamp junction temperature is higher than 80℃. This keeps the temperature of the filament strip 6 at about 70-75℃, thereby reducing the temperature of the filament strip 6 and improving the luminous efficacy of the lamp.

[0061] In one possible implementation, a lamp holder 9 is connected to the outer casing 7 via a drive power housing 8. The drive power housing 8 is provided with a drive power supply 81 for electrical energy. The input terminal of the drive power supply 81 is connected to the lamp holder 9, and the output terminal of the drive power supply 81 is connected to the inner guide wire 2. The driver power supply housing 8 is made of ABS material and molded using injection molding technology. The driver power supply housing 8 is connected to the outer shell 7 with glass glue. During connection, the output end of the driver power supply 81 is connected to the outer guide wire of the lamp wick 1, and then connected to the inner guide wire 2 through the outer guide wire. The input end of the driver power supply 81 is connected to the lamp holder 9, and the lamp holder 9 is fixed on the driver power supply housing 8. The connection between the lamp holder 9 and the driver power supply housing 8 can be, but is not limited to, adhesive bonding. The driver power supply 81 can be designed with a transformer and electrolytic capacitor that meet the performance requirements of the load power to convert the periodically changing alternating current into a constant-direction direct current to supply power to the filament strip 6. By placing the driver power supply 81 inside the driver power supply housing 8, the heat generated by the driver power supply 81 during operation can be dissipated to achieve effective heat dissipation. This avoids the problem in the prior art where placing the driver power supply 81 inside the lamp holder 9 makes it difficult for heat to dissipate, causing the output power of the driver power supply 81 to be limited when it reaches the junction temperature, resulting in a decrease in the light parameters output by the lamp.

[0062] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An LED light, characterized in that, include: Lamp wick (1); Both inner guide wires (2) are fixedly connected to the lamp core (1); The central support (3) is fixedly connected to the lamp core (1); The first support piece (4) includes two electrically isolated support piece bodies (41), and the support piece body (41) is used to connect and electrically connect with a corresponding inner guide wire (2), and each support piece body (41) is provided with a first fixing hole (411). The second support piece (5) is fixedly connected to the central bracket (3) and located on the side of the first support piece (4) away from the lamp core (1). The second support piece (5) is provided with a second fixing hole (51). Several filament strips (6) are located between the first support plate (4) and the second support plate (5). The two ends of the filament strips (6) are respectively connected to a first connecting piece (61) that passes through the first fixing hole (411) and bends relative to the filament strip (6), and a second connecting piece (62) that passes through the second fixing hole (51) and bends relative to the filament strip (6). The first connecting piece (61) is used to fix the filament strip (6) relative to the support plate body (41) and electrically connect it. The second connecting piece (62) is used to fix the filament strip (6) relative to the second support plate (5) and electrically connect it.

2. The LED lamp according to claim 1, characterized in that, The first connecting piece (61) includes a first connecting section and a first bending section that are perpendicular to each other. The first connecting section is connected to one end of the filament strip (6) facing the first support piece (4), and the first bending section is connected to one end of the first connecting section away from the filament strip (6). The first bending section is attached to the side of the first support piece (4) away from the filament strip (6). The second connecting piece (62) includes a second connecting section and a second bending section that are perpendicular to each other. The second connecting section is connected to one end of the filament strip (6) facing the second support piece (5), and the second bending section is connected to one end of the second connecting section away from the filament strip (6). The second bending section is attached to the side of the second support piece (5) away from the filament strip (6).

3. The LED lamp according to claim 1, characterized in that, The first fixing hole (411) is evenly arranged in the circumferential direction of the first support piece (4), and the second fixing hole (51) is evenly arranged in the circumferential direction of the second support piece (5), and the number of the first fixing hole (411) and the second fixing hole (51) is the same.

4. The LED lamp according to claim 1, characterized in that, The inner guide wire (2) includes a first extension segment connected to the lamp core (1) and a second extension segment connected to one end of the first extension segment away from the lamp core (1), the second extension segment being located on the side opposite to the two first extension segments; The support plate body (41) is provided with a first fixing member (42) on the side facing the lamp core (1). The first fixing member (42) can surround the outer periphery of the second extension section, so that the support plate body (41) and the second extension section are relatively fixed and electrically connected.

5. The LED lamp according to claim 4, characterized in that, The two first extension segments are parallel to each other, the first extension segment and the second extension segment are perpendicular to each other, and the axes of the two second extension segments are collinear.

6. The LED lamp according to claim 1, characterized in that, The central support (3) is connected to a crossbeam (31) at one end away from the lamp core (1). The second support piece (5) is provided with a second fixing member (52) on the side away from the lamp core (1). The second fixing member (52) can surround the outer periphery of the crossbeam (31) so that the second support piece (5) is relatively fixed to the central support (3).

7. The LED lamp according to claim 1, characterized in that, A reflector (11) is fixed to the outer periphery of the lamp core (1), and the side of the reflector (11) facing the filament strip (6) is perpendicular to the extension direction of the filament strip (6).

8. The LED lamp according to any one of claims 1-7, characterized in that, It also includes a housing (7) having a receiving cavity, in which the inner guide wire (2), the filament strip (6), the central support (3), the first support plate (4) and the second support plate (5) are all located. The lamp core (1) is fixed to the opening of the receiving cavity, so that the housing (7) and the lamp core (1) are fixedly connected and the receiving cavity is sealed. The receiving cavity is filled with cooling circulating gas to transfer the heat generated by the filament strip (6) to the surface of the housing (7) for heat dissipation.

9. The LED lamp according to claim 8, characterized in that, The cooling circulating gas includes helium, argon, and hydrogen.

10. The LED lamp according to claim 8, characterized in that, It also includes a lamp holder (9) connected to the outer shell (7) via a drive power housing (8), wherein the drive power housing (8) is provided with a drive power supply (81) for electrical energy, the input end of the drive power supply (81) is connected to the lamp holder (9), and the output end of the drive power supply (81) is connected to the inner guide wire (2).

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