Filament structure and bulb

Abstract

The utility model discloses a filament structure and a bulb. The filament structure comprises: a functional member having a first end portion and a second end portion; the first pin is connected with the functional part through the first end part or the second end part, the first pin is provided with a first connecting end and a first extending end, the first connecting end is connected with the functional part, and the first extending end is far away from the functional part and extends in the direction far away from the functional part; the second pin is connected with the functional part through the first end part or the second end part, the second pin is provided with a second connecting end and a second extending end, the second connecting end is connected with the functional part, and the second extending end is far away from the functional part and extends in the direction far away from the functional part; wherein the extension directions of the first extension end and the second extension end are the same. The filament structure can prevent the filament light source from being damaged due to butt-welding operation.

Description

Technical Field

[0001] The utility model relates to the field of lighting, in particular to a filament structure and a light bulb. Background Art

[0002] Currently, the conductive metal terminals of filament strips are riveted or welded to the ends of the plate, facilitating the soldering process for filament lamps. A critical step in the manufacturing process of modern lighting products, particularly during the bulb sealing stage, is ensuring a reliable filament connection. This process typically involves wrapping a core around a molybdenum wire, widely used for its excellent high-temperature stability and electrical conductivity. Using precise soldering techniques, the filament pins are securely welded to the molybdenum wire, creating a stable electrical connection that allows the filament to effectively receive and convert energy from an external power source, generating light.

[0003] However, during the soldering process, the correct technical parameters and the stability of the process have a crucial impact on the quality of the bulb. Improper parameter settings or inaccurate operation can cause secondary damage to the filament, often due to thermal or mechanical stress generated during the soldering process. Minor damage can shorten the filament life and reduce brightness, while severe damage can directly lead to filament breakage or melting, rendering the light source completely inoperable and preventing the bulb from emitting light properly. Summary of the Invention

[0004] The present invention aims to solve one of the problems of the prior art to at least a certain extent. To this end, the present invention provides a filament structure that can avoid damage to the filament light source caused by the butt welding operation.

[0005] The utility model also provides a light bulb.

[0006] The filament structure according to the first aspect of the present invention includes:

[0007] a functional member having a first end and a second end;

[0008] a first pin, the first pin being connected to the functional component via the first end portion or the second end portion, the first pin having a first connecting end and a first extending end, the first connecting end being connected to the functional component, and the first extending end extending away from the functional component in a direction away from the functional component;

[0009] a second pin, the second pin being connected to the functional component through the first end or the second end, the second pin having a second connecting end and a second extending end, the second connecting end being connected to the functional component, and the second extending end extending away from the functional component in a direction away from the functional component;

[0010] Wherein, the first extending end and the second extending end have the same extending direction.

[0011] The filament structure according to the first aspect of the present invention has at least the following beneficial effect: it can prevent damage to the filament light source caused by the butt welding operation. Specifically, in the prior art, the two pins of the filament structure are respectively arranged at the ends of the functional area (functional component), and the two pins are respectively provided with a connecting end and an extending end. The two pins are connected to the functional component via their respective connecting ends, and the respective extending ends of the two pins extend in opposite directions, with one extending to the outside of one end of the functional component and the other extending to the outside of the other end of the functional component. Therefore, when the filament structure needs to be welded, the pins at both ends of the filament structure need to be riveted or welded to the ends of the plate to facilitate the butt welding of the filament structure. However, in the related art, when performing the butt welding process, the setting of technical parameters and the stability of the operation process have a crucial impact on the quality of the light bulb. If the parameters are set improperly or the operation is not precise, secondary damage to the filament may occur, which is often caused by thermal stress or mechanical stress generated during the welding process. Minor damage may shorten the filament life and reduce the brightness, while severe damage may directly cause the filament to break or melt, resulting in complete failure of the light source and the bulb to fail to emit light normally.

[0012] Therefore, when designing a filament structure, how to change the filament connection method by changing the filament structure, thereby transforming the traditional soldering to a plug-in connection, becomes an urgent problem that needs to be solved. In this embodiment, by changing the extension direction of the pins, the extension ends of the two pins are set to extend in the same direction, that is, the extension ends of the two pins are on the same side of the functional component, forming a plug-in filament structure. This avoids soldering and ensures safe and stable light emission of the light source.

[0013] In some embodiments, the first pin is disposed at the first end portion, the first pin includes a main portion and a bent portion, the first pin is connected to the functional component via the bent portion, the main portion is disposed parallel to the functional component, and a gap exists between the main portion and the functional component;

[0014] The second pin is arranged at the second end and connected to the functional component, and the second pin is coaxially arranged with the central axis of the functional component.

[0015] In some embodiments, both the first extension end and the second extension end are connected to a plate port.

[0016] In some embodiments, the first extension end and the second extension end are configured to be cylindrical or prismatic, or the first extension end and the second extension end are configured to be connected by cylindrical or prismatic structures of different diameters.

[0017] In some embodiments, the functional area includes a light source coated or covered with a material with a changeable light color.

[0018] In some embodiments, the first pin and the second pin are both provided at the first end, or the first pin and the second pin are both provided at the second end, and a gap exists between the first pin and the second pin.

[0019] In some embodiments, the outer side of the functional part is wrapped with a hardened structure, and the hardened structure is formed by glue pouring, molding or coating hardened colloid.

[0020] In some embodiments, the glue hardness of the hardened structure is greater than or equal to Shore D85.

[0021] In some embodiments, the hardening structure includes a first layer and a second layer, wherein the first layer is coated on the outside of the functional component, the second layer is coated on the outside of the first layer, and the first extension end and the second extension end are exposed from the second layer;

[0022] The hardness of the glue of the first layer is less than Shore A40, and the hardness of the glue of the second layer is greater than or equal to Shore D85.

[0023] According to the second aspect of the present invention, the light bulb comprises a lamp holder, a bulb shell and the filament structure described in any one of the above items, wherein the bulb shell is sealed and connected to one end of the lamp holder, and the filament structure is enclosed in the bulb shell.

[0024] The light bulb according to the second aspect of the present invention has at least the following beneficial effect: it can avoid damage to the filament light source caused by the butt welding operation.

[0025] Specifically, a light bulb made using the filament structure described above changes the extension direction of the pins, aligning the extension ends of the two pins in the same direction. This means that the two pins are positioned on the same side of the functional component, forming a plug-in filament structure. This avoids soldering and ensures safe and stable light emission. Furthermore, because the pins of the filament structure of this application are riveted or welded to the same end of the plate, and the extended ends of the two pins are parallel, forming an insertable pin, soldering is avoided, improving the quality and service life of the light bulb. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the filament structure of the existing technology

[0027] Figure 2 It is a schematic diagram of the filament structure of the present invention.

[0028] Figure 3 It is a schematic diagram of a filament structure according to another embodiment of the present invention.

[0029] Figure 4 It is a schematic diagram of a light bulb of the present invention.

[0030] Figure 5 It is a schematic diagram of another embodiment of the light bulb of the present invention.

[0031] Reference numerals:

[0032] Functional component 100; first end 101; second end 102; first pin 200; bending portion 210; first connection end 211; main body 220; first extension end 221; second pin 300; second connection end 301; second extension end 302; bulb 400; lamp holder 500; hardening structure 600; first layer 610; second layer 620. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] In the manufacturing process of modern lighting products, especially during the bulb sealing stage, a critical step is ensuring a reliable filament connection. This process typically involves wrapping a core around a molybdenum wire, widely used for its excellent high-temperature stability and electrical conductivity. Through precise soldering techniques, the filament's pins are securely welded to the molybdenum wire, forming a stable electrical connection that enables the filament to effectively receive and convert energy from an external power source to produce light.

[0038] However, during the soldering process, the correct technical parameters and the stability of the process have a crucial impact on the quality of the bulb. Improper parameter settings or inaccurate operation can cause secondary damage to the filament, often due to thermal or mechanical stress generated during the soldering process. Minor damage can shorten the filament life and reduce brightness, while severe damage can directly lead to filament breakage or melting, rendering the light source completely inoperable and preventing the bulb from emitting light properly.

[0039] Therefore, in the field of filament technology, it is necessary to design a filament structure that changes the filament structure and thus the connection method of the filament, thereby transforming the traditional butt welding into a plug-in connection.

[0040] Reference Figures 1 to 3 According to the first aspect of the present invention, the filament structure includes a functional component 100, a first pin 200, and a second pin 300. The functional component 100 has a first end 101 and a second end 102. The first pin 200 is connected to the functional component 100 via the first end 101 or the second end 102. The first pin 200 has a first connection end 211 and a first extension end 221. The first connection end 211 is connected to the functional component 100, and the first extension end 221 extends away from the functional component 100. The second pin is connected to the functional component 100 via the first end 101 or the second end 102. The second pin 300 has a second connection end 301 and a second extension end 302. The second connection end 301 is connected to the functional component 100, and the second extension end 302 extends away from the functional component 100. The first extension end 221 and the second extension end 302 extend in the same direction.

[0041] The filament structure according to the first aspect of the present invention has at least the following beneficial effect: it can avoid damage to the filament light source caused by the butt welding operation.

[0042] Reference Figure 1Specifically, in the prior art, the two pins of the filament structure are respectively arranged at the two ends of the functional area (functional part 100), and the two pins are respectively provided with a connection end and an extension end. The two pins are connected to the functional part 100 through their respective connection ends, and the extension ends of the two pins extend in opposite directions, one extending to the outside of one end of the functional part 100, and the other extending to the outside of the other end of the functional part 100. Therefore, when the filament structure needs to be welded, the pins at both ends of the filament structure need to be riveted or welded to the two ends of the plate to facilitate the butt welding structure of the filament structure. However, in the related art, when performing the butt welding process, the setting of technical parameters and the stability of the operation process have a crucial impact on the quality of the light bulb. If the parameters are set improperly or the operation is not precise enough, secondary damage may be caused to the filament, which is often caused by thermal stress or mechanical stress generated during the welding process. Minor damage may shorten the filament life and reduce the brightness, while severe damage may directly cause the filament to break or melt, thereby completely failing the light source and the light bulb cannot emit light normally.

[0043] Therefore, when designing the filament structure, how to change the filament connection method by changing the filament structure and transforming the traditional butt welding into plug-in connection has become an urgent problem that needs to be solved.

[0044] Reference Figure 2 、 Figure 3 In this embodiment, by changing the extension direction of the pins, the extension direction of the extension ends of the two pins is set to the same direction, that is, the extension ends of the two pins are on the same end side of the functional part 100, forming a direct plug-in filament structure, thereby avoiding soldering and ensuring safe and stable lighting of the light source.

[0045] In some embodiments, a first pin 200 is disposed at the first end 101 and includes a main portion 220 and a bent portion 210. The first pin 200 is connected to the functional component 100 via the bent portion 210. The main portion 220 is disposed parallel to the functional component 100, with a gap between the main portion 220 and the functional component 100. A second pin 300 is disposed at the second end 102 and connected to the functional component 100. The second pin 300 is coaxial with the central axis of the functional component 100. Specifically, if the first pin 200 and the second pin 300 connected to the functional part 100 are respectively arranged at the two ends of the functional part 100 (in this application, that is, the first end 101 and the second end 102 of the functional part 100, respectively), then through the design method of this application, the first pin 200 is set to include a main body 220 and a bending portion 210, and is connected to the functional part 100 through the bending portion 210. The main body 220 is connected to the bending portion 210 and changes direction, and the extension end of the first pin 200 that originally extended in the opposite direction to the extension end of the second pin 300 is changed to extend in the same direction as the extension end of the second pin 300.

[0046] Thus, the extended ends of the two pins can be placed on the same end side of the functional part 100 to form a plug-in filament structure, thereby avoiding bump welding, ensuring safe and stable lighting of the light source, and improving the service life of the bulb.

[0047] In some embodiments, the first extension end 221 and the second extension end 302 are both connected to the plate port. The first extension end 221 of the first pin 200 and the second extension end 302 of the second pin 300 are disposed on one end of the functional component 100. Thus, the extension ends of the first pin 200 and the second pin 300 of the filament structure are riveted or welded to the same port of the plate, and the extension ends of the two pins are parallel to form plug-in pins, avoiding soldering operations and thereby improving the quality and service life of the bulb.

[0048] In some embodiments, the first extension end 221 and the second extension end 302 are configured in a cylindrical or prismatic shape, or the first extension end 221 and the second extension end 302 are configured to be formed by connecting cylindrical or prismatic structures of different diameters. Preferably, the first extension end 221 and the second extension end 302 can be configured in a cylindrical or prismatic structure to facilitate insertion of the extension ends of the first pin 200 and the second pin 300 into the board port, thereby forming a stable plug-in connection structure.

[0049] In some embodiments, the functional area includes a light source coated or covered with a color-shifting material. The functional area generally includes a light source, which is the light-emitting portion of a filament. A wafer is secured to the functional area and includes other light sources. The functional area is coated or covered with a fluorescent material capable of changing to any color, including other color-shifting materials, enabling the light-emitting portion to switch to a variety of different colors.

[0050] In some embodiments, the first pin 200 and the second pin 300 are disposed simultaneously at the first end portion 101, or the first pin 200 and the second pin 300 are disposed simultaneously at the second end portion 102, with a gap between the first pin 200 and the second pin 300. Specifically, in the present application, to prevent damage to the filament light source due to soldering, the first extension end 221 of the first pin 200 and the second extension end 302 of the second pin 300 are configured to extend in the same direction.

[0051] There are two ways to set the extension direction of the first extension end 221 of the first pin 200 and the second extension end 302 of the second pin 300 to be the same. The first way is as described above, the first pin 200 and the second pin 300 are respectively set at the two ends of the functional part 100, and then one of the pins (the first pin 200 or the second pin 300) is set to have a structure with a bent portion 210, so that the extension ends of the first pin 200 and the second pin 300 are on the same end side of the functional part 100, so that the extension end of the first pin 200 is flush with the extension end of the second pin 300 (that is, the top surface of the end of the extension end of the first pin 200 and the top surface of the end of the extension end of the second pin 300 are in the same horizontal plane), and the main body 220 of the first pin 200 is parallel to the second pin 300. In this way, the first pin 200 and the second pin 300 can be welded or riveted to the same end of the plate to form an inserted pin, avoiding the need for butt welding.

[0052] In addition, a second method is also included, that is, the first pin 200 and the second pin 300 are set at the same end side of the functional part 100. In this application, the first pin 200 and the second pin 300 can be set at the first end 101 of the functional part 100 at the same time, or the first pin 200 and the second pin 300 can be set at the second end 102 of the functional part 100 at the same time. Here, the first pin 200 and the second pin 300 are set at the second end 102 at the same time as an example. Specifically, refer to Figure 3 , the first pin 200 and the second pin 300 can be arranged at the second end portion 102 of the functional part 100, and the first pin 200 and the second pin 300 are arranged at intervals along the radial direction of the functional part 100. Figure 3The first pin 200 and the second pin 300 can be set on the outer peripheral side of the functional part 100, close to the functional part 100. Of course, it is not limited to this. They can also be set at the end surface of the second end 102 of the functional part 100, as long as there is a gap between the first pin 200 and the second pin 300, and they do not contact each other.

[0053] In some embodiments, the outside of the functional part 100 is wrapped with a hardened structure 600, and the hardened structure 600 is formed by glue pouring, molding or coating with a hardened colloid. In traditional lighting products, the stability and life of the filament are key factors affecting product performance and reliability. The filament works at high temperatures and is easily affected by mechanical stress and thermal stress, resulting in breakage or failure. In order to improve the stability and life of the filament, it is usually necessary to add a protective layer to the outside of the functional part 100 of the filament structure. In the prior art, the filament sealing glue is coated with low-fold glue (about Shore A40), and the colloid is soft. The connecting wires between chips or the bracket ends are easily crushed, resulting in dead lamps. In addition, the pins are flat and soft, which is suitable for butt welding process. In this application, in order to improve this situation, a new coating and encapsulation method is adopted, which is suitable for a variety of operating procedures and can ensure product quality.

[0054] In some embodiments, the glue hardness of the hardened structure 600 is greater than or equal to Shore D85. Specifically, a high-resistance glue (glue hardness ≥ epoxy resin hardness standard (approximately Shore D85)) can be used, and molded or potted to wrap the light source for protection. After baking and hardening, the filament structure can be improved in stability and service life.

[0055] Reference Figure 4 、 Figure 5In some embodiments, the hardened structure 600 includes a first layer 610 and a second layer 620. The first layer 610 is coated on the outside of the functional component 100, and the second layer 620 is coated on the outside of the first layer 610. The first extension end 221 and the second extension end 302 are exposed from the second layer 620. The glue hardness of the first layer 610 is less than Shore A40, and the glue hardness of the second layer 620 is greater than or equal to Shore D85. In this embodiment, in addition to the above method, a method can also be used to first coat the filament structure with a softer glue to prevent damage, and then coat the softer glue layer (first layer 610) with a harder glue layer (second layer 620). In this way, the first layer 610 is relatively soft and can protect the filament structure from the inside, while the second layer 620 is relatively hard and can protect the filament structure from the outside. Specifically, low-resistance glue (about Shore A40) can be used to coat once or multiple times, and then high-resistance glue (glue hardness ≥ epoxy resin hardness standard (about Shore D85)) can be used for molding or potting once or multiple times to wrap the light source for protection. After baking and hardening, the stability and service life of the filament structure can be improved.

[0056] In addition, in the present application, the first layer 610 is covered on the outside of the functional part 100, and the second layer 620 is covered on the outside of the first layer 610. When the filament structure is such that the first pin 200 and the second pin 300 are respectively arranged at both ends of the functional part 100 (that is, the first pin 200 of the filament structure has a bending portion 210), the second layer 620 covers the functional part 100 and the first pin 200 except the first extension end 221, that is, the first extension end 221 and the second extension end 302 are exposed from the second layer 620.

[0057] The light bulb according to the second aspect of the present invention comprises a lamp holder 500 , a bulb 400 and any of the above filament structures. The bulb 400 is sealed and connected to one end of the lamp holder 500 , and the filament structure is enclosed in the bulb 400 .

[0058] The light bulb according to the second aspect of the present invention has at least the following beneficial effect: it can avoid damage to the filament light source caused by the butt welding operation.

[0059] Specifically, a light bulb made using the filament structure described above changes the extension direction of the pins, aligning the extension ends of the two pins in the same direction. This means that the extension ends of the two pins are located on the same side of the functional component 100, forming a plug-in filament structure. This avoids soldering and ensures safe and stable light emission. Furthermore, because the pins of the filament structure of this application are riveted or welded to the same end of the plate, and the extension ends of the two pins are parallel, forming an insertable pin, soldering is avoided, thereby improving the quality and service life of the light bulb.

[0060] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A filament structure, characterized in that: include: a functional member having a first end and a second end; a first pin, the first pin being connected to the functional component via the first end portion or the second end portion, the first pin having a first connecting end and a first extending end, the first connecting end being connected to the functional component, and the first extending end extending away from the functional component in a direction away from the functional component; a second pin, the second pin being connected to the functional component through the first end or the second end, the second pin having a second connecting end and a second extending end, the second connecting end being connected to the functional component, and the second extending end extending away from the functional component in a direction away from the functional component; Wherein, the first extending end and the second extending end have the same extending direction.

2. The filament structure according to claim 1, characterized in that The first pin is provided at the first end portion, the first pin includes a main portion and a bent portion, the first pin is connected to the functional component via the bent portion, the main portion is provided parallel to the functional component, and a gap exists between the main portion and the functional component; The second pin is arranged at the second end and connected to the functional component, and the second pin is coaxially arranged with the central axis of the functional component.

3. The filament structure according to claim 1, characterized in that The first extension end and the second extension end are both connected to the plate port.

4. The filament structure according to claim 3, characterized in that The first extension end and the second extension end are configured to be cylindrical or prism-shaped, or the first extension end and the second extension end are configured to be connected by cylindrical or prism-shaped structures with different diameters.

5. The filament structure according to claim 1, characterized in that The functional area includes a luminous light source, and the luminous light source is coated or covered with a material with a variable light color.

6. The filament structure according to claim 1, characterized in that The first pin and the second pin are both provided at the first end, or the first pin and the second pin are both provided at the second end, and a gap exists between the first pin and the second pin.

7. The filament structure according to any one of claims 1 to 6, characterized in that: The outer side of the functional part is wrapped with a hardened structure, and the hardened structure is formed by glue pouring, molding or coating hardened colloid.

8. The filament structure according to claim 7, characterized in that The glue hardness of the hardened structure is greater than or equal to Shore D85.

9. The filament structure according to claim 7, characterized in that: The hardening structure includes a first layer and a second layer, wherein the first layer covers the outside of the functional component, the second layer covers the outside of the first layer, and the first extension end and the second extension end are exposed from the second layer; The hardness of the glue of the first layer is less than Shore A40, and the hardness of the glue of the second layer is greater than or equal to Shore D85.

10. A light bulb, characterized in that The invention comprises a lamp holder, a bulb and the filament structure according to any one of claims 1 to 6 and 8 to 9, wherein the bulb is sealed and connected to one end of the lamp holder, and the filament structure is enclosed in the bulb.

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