Integral glass bulb straight strip lamp and its manufacturing method

Abstract

The application relates to the technical field of LED lamps, and aims to replace the glass bulb shell, the driving module and the lampwick when they are damaged, and to continue to use the undamaged ones, so as to reduce resource waste and total cost, and to use mature technology in the manufacturing process, and to conveniently install and disassemble. In particular, the integrated glass bulb shell straight strip lamp comprises a glass bulb shell, a lamp cap fixedly connected to the upper end of the glass bulb shell, a driving module arranged in the lamp cap, and a lampwick connected with the driving module, the glass bulb shell is composed of a bulb shell body and a closing-in part arranged at the upper end of the bulb shell body and integrated with the bulb shell body, the closing-in part is provided with at least one positioning hole, the lampwick passes through the positioning hole and extends into the inner cavity of the bulb shell body, and the lampwick is provided with at least one light-emitting component driven by the driving module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of LED lamp, in particular to an integrated glass bulb straight bar lamp and a manufacturing method thereof. BACKGROUND

[0002] The structure and production process of LED filament lamp are similar to those of traditional incandescent lamp. In production, glass bulb and lamp core are made in advance, LED filaments are welded to the lamp core one by one, then the lamp core is installed in the glass bulb, the trumpet of the tail of the lamp core is sintered with the opening of the glass bulb, the excess glass at the sintering part is removed and shaped to form a rough bubble (if necessary, inert gas can be injected into the glass bulb before sealing), finally the rough bubble, lamp cap and driving module are assembled together to form a complete LED filament lamp.

[0003] The LED filament lamp produced by this production process has a whole structure of glass lamp core, LED filament and glass bulb. Any damaged part of the three cannot be repaired and replaced, and the undamaged part cannot be used, so the whole bulb must be scrapped. For ordinary users, the cost of replacing a single bulb is not large, but for manufacturers, the total number of defective products in the production process, damaged parts in the transportation process and returned parts during the warranty period is relatively large, and direct scrapping will cause resource waste.

[0004] To solve the above problems, the Chinese utility model patent 201621363834.X provides an LED filament bulb, the lamp cap and the lamp shell (i.e. the bulb shell) are detachably connected through threads, and the lamp cap and the LED light source assembly (i.e. the lamp core) are fixedly connected through the inner container. This bulb can realize maintenance and replacement of damaged parts, but has the following defects: 1. The wall thickness of the lamp shell is very thin, when the material is glass, high borosilicate glass or glass of the same grade is generally required to meet the strength requirement of machining external threads, and the cost is several times that of ordinary glass bulb; 2. The process requirement for machining external threads on the thin-walled glass lamp shell is relatively high, otherwise the yield will be affected; 3. Whether the lamp cap is in the form of screw or bayonet, the rotation direction of the installation process and the disassembly process is opposite, and the tightening between the lamp shell and the lamp cap can only be in one direction. If the tightening direction is the same as the rotation direction of the installation process, it must be opposite to the disassembly direction, and the lamp cap is likely to be left in the lamp port during disassembly, and the lamp cap and the lamp shell are also likely to be loose due to external interference during transportation and use. SUMMARY

[0005] The purpose of the present application is to overcome the deficiencies in the prior art, provide an integrated glass bubble shell straight strip lamp and a manufacturing method thereof, which can replace the glass bubble shell, driving module and lampwick when damaged, and the undamaged ones can continue to be used, thereby reducing resource waste and total cost, and the manufacturing process uses mature technology, and the installation and disassembly are convenient.

[0006] The technical scheme adopted by the present application is as follows: an integrated glass bubble shell straight strip lamp, comprising a glass bubble shell, a lamp cap fixedly connected to the upper end of the glass bubble shell, a driving module arranged in the lamp cap, and a lampwick connected with the driving module, wherein the glass bubble shell is composed of a bubble shell body and a necking portion arranged at the upper end of the bubble shell body and integrated with the bubble shell body, the necking portion has at least one positioning hole, the lampwick passes through the positioning hole and extends into the inner cavity of the bubble shell body, and the lampwick is provided with at least one light emitting component driven by the driving module.

[0007] Preferably, the outer wall of the lampwick is sleeved with a sealing member for positioning the lampwick and sealing the space between the outer wall of the lampwick and the inner wall of the positioning hole.

[0008] Preferably, the bubble shell body and the necking portion are separately manufactured and integrated by a sintering process, or the necking portion is formed by softening the upper end of the bubble shell body and shaping by a mold.

[0009] Preferably, the inner cavity of the glass bubble shell is provided with a positioning member for positioning the lampwick, and the positioning member is detachably connected with the lampwick.

[0010] Preferably, the lampwick is composed of a sleeve and the light emitting component arranged in the sleeve.

[0011] Preferably, the light emitting component is a straight strip-shaped LED filament or a spiral-shaped LED filament.

[0012] Preferably, the upper end of the sleeve of the lampwick is fixed to the bottom of the circuit board of the driving module, or a through hole is formed in the circuit board of the driving module, and the sleeve of the lampwick is fixed in the through hole, thereby realizing the fixed connection between the lampwick and the driving module.

[0013] The present application also provides a manufacturing method for manufacturing the integrated glass bubble shell straight strip lamp, comprising the following steps:

[0014] S1, manufacturing a glass bubble shell, and the upper end of the shaped glass bubble shell has at least one positioning hole;

[0015] S2, assembling a lampwick and fixing it to a driving module, welding the electrode of the light emitting component of the lampwick to the output end of the driving module, inserting the lampwick into the glass bubble shell from the positioning hole, and sealing the space between the outer wall of the lampwick and the inner wall of the positioning hole by using a sealing member;

[0016] S3, assembling the lamp cap, driving module and fixing connection of the lamp cap cover to the glass bulb shell, and welding the input end of the driving module to the lamp cap.

[0017] Preferably, in step S1, the glass bulb shell is integrated by sintering process of the pre-separated bulb shell body and the closing part, and at least one positioning hole is pre-formed on the closing part;

[0018] Alternatively, the upper end of the bulb shell body is molded into a closing part in a softened state through a mold, and the positioning hole is molded together with the closing part.

[0019] Preferably, in step S1, before the bulb shell body and the closing part are integrated, the positioning member for positioning the lampwick is fixed into the inner cavity of the bulb shell body, or after the glass bulb shell is formed, the positioning member is fixed into the inner cavity of the bulb shell body through the positioning hole.

[0020] The present application has the following advantages: (1) the glass bulb shell and the lampwick of the present application are in a split structure, any damage of the glass bulb shell, the driving module and the lampwick can be replaced, the undamaged parts can be continued to be used, the resource waste is reduced, and the production cost is reduced; (2) the lampwick is fixed on the driving module, the glass bulb shell is an integrated type of the combination of the bulb shell body and the closing part, and the lamp cap can be regarded as three modules in total, and the assembly process of the three modules is relatively simple; (3) the closing part is sintered at the connecting part of the integrated glass bulb shell and the lamp cap, the strength at this position is higher, the connecting part is not easy to be damaged, the processing technology is mature, the ordinary glass for producing the bulb shell can be used, the processing of the screw port is simple and the cost is low; (4) the lampwick is positioned by the driving module, the sealing member and the positioning member together, the position deviation is not easy to occur in the installation process, and the lampwick can be avoided from shaking; (5) the sleeve is inserted into the LED filament as the light source, 360° light emission can be realized, the LED filament is protected, and the impact resistance is improved; (6) the lamp cap and the glass bulb shell are fixedly connected, the glass bulb shell and the lamp cap are not separated during the installation and disassembly, and the glass bulb shell is not loose during the transportation and use; (7) the sealing member and the positioning member can realize the closure of the inner cavity of the glass bulb shell, and the external water vapor is avoided from entering. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a cross-sectional structure schematic diagram of an integrated glass bulb shell straight bar lamp provided by an embodiment of the present application.

[0022] Figure 2 is a three-dimensional structure schematic diagram of a glass bulb shell provided by an embodiment of the present application.

[0023] Figure 3 is a connection structure schematic diagram of a lampwick and a driving module provided by an embodiment of the present application.

[0024] In the figure, there are: a glass bulb 1, a bulb body 1.1, a positioning tube 1.2, a closing part 1.3, a positioning hole 1.4, a lamp cap 2, a driving module 3, a circuit board 3.1, a lamp wick 4, a sleeve 4.1, a light-emitting component 4.2, a sealing member 4.3, and a positioning member 5. DETAILED DESCRIPTION

[0025] In order to make ordinary skilled in the art more clearly understand the purpose, technical solution and advantages of the present application, the present application is further described below in conjunction with the drawings and examples, but the present application is not limited to the following examples.

[0026] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] As shown in Figure 1 The integral glass bulb straight bar lamp provided by the embodiment includes a glass bulb 1, a lamp cap 2 fixedly connected to the upper end of the glass bulb 1 by cement, a driving module 3 arranged in the lamp cap 2, and a lamp wick 4 fixedly connected with the driving module 3. As shown in Figure 2 The glass bulb 1 is composed of a bulb body 1.1 and a closing part 1.3 arranged at the upper end opening of the bulb body 1.1 and integrated with the bulb body 1.1. The closing part 1.3 has a positioning tube 1.2 integrally formed therewith and extending into the inner cavity of the bulb body 1.1 by a distance, and the inner hole of the positioning tube 1.2 serves as a positioning hole 1.4. The outer wall of the lamp wick 4 is sleeved with a sealing member 4.3, and then passes through the positioning hole 1.4 and protrudes into the inner cavity of the glass bulb 1. Obviously, the inner hole wall of the sealing member 4.3 covers the outer wall of the lamp wick 4, and when installed, the sealing member 4.3 is pressed to close the space between the outer wall of the lamp wick 4 and the inner wall of the positioning hole 1.4, thereby preventing external moisture from entering the inner cavity of the bulb body 1.1, and at the same time, the sealing member 4.3 can also serve to position the lamp wick 4. Generally, the sealing member is made of a material with elasticity, such as silicone.

[0028] The lamp core 4 consists of a transparent glass sleeve 4.1 and a light-emitting component 4.2 disposed within the sleeve 4.1. A sealing element 4.3 is fitted onto the outer wall of the sleeve 4.1. The light-emitting component 4.2 is driven by the driving module 3 and can emit light in 360°. Generally, the sleeve 4.1 is a straight tube. However, the sleeve 4.1 can also adopt other shapes that can penetrate the inner cavity of the bulb body 1.1, depending on the requirements of the application. The shape of the light-emitting component 4.2 is adapted to the shape of the sleeve 4.1 to ensure that the light-emitting component 4.2 can be smoothly inserted into the sleeve 4.1. For example, when the sleeve 4.1 is a straight tube, the light-emitting component 4.2 can be a straight LED filament or an LED filament bent into a spiral shape (similar to a spring). The positive and negative terminals of the LED filament are both located at the upper end, or one terminal is at the upper end, and the other terminal is led from the lower end to the upper end via a wire. Figure 1 , Figure 3 As shown, a through hole is provided on the circuit board 3.1 of the driving module 3, and the upper end of the light-emitting component 4.2 passes through the through hole to facilitate electrical connection with the driving module 3. There are various ways to fix the lamp wick 4 to the driving module 3. For example, the upper end of the sleeve 4.1 is fixed to the bottom of the circuit board 3.1 of the driving module 3 by applying glue, or the sleeve 4.1 of the lamp wick 4 is directly press-fitted into the through hole on the circuit board 3.1, or the sleeve 4.1 is clearance-fitted to the through hole and then fixed by applying glue, thus achieving a fixed connection between the lamp wick 4 and the driving module 3. Generally, to avoid affecting the circuit layout of the driving module, the top end of the sleeve 4.1 does not exceed the top surface of the circuit board 3.1.

[0029] To position the lower end of the wick 4, increase its impact resistance, and reduce its shaking, the inner cavity of the bulb body 1.1 is provided with a positioning member 5 for positioning the wick 4. This positioning member 5 is detachably connected to the wick 4. Generally, the positioning member 5 is made of an elastic material, such as silicone. The bottom of the positioning member 5 is adhered to the bottom of the inner cavity with adhesive. The positioning member 5 has a hole for inserting the sleeve 4.1 of the wick 4. The bottom of this hole is closed. When the lower end of the sleeve 4.1 is inserted into the hole, the positioning member 5 uses its own elastic deformation to cover the lower end of the sleeve 4.1, achieving a seal at the lower end of the sleeve 4.1 and preventing external moisture from entering the inner cavity of the bulb body 1.1 through the sleeve 4.1.

[0030] The bubble body 1.1 and the ferrule 1.3 are manufactured separately using existing processes and molds, and then joined together by sintering with the help of tooling fixtures. After sintering, excess glass in the sintered area is removed, and after conventional operations such as polishing, a one-piece glass bubble body is formed. As another implementation, the ferrule 1.3 can also be formed by heating and softening the upper end of the bubble body 1.1 at high temperature and then molding it with a mold. This is a conventional process and will not be described in detail here.

[0031] The positioning member 5 can be fixed to the inner cavity of the bubble shell body 1.1 before the glass bubble shell 1 is completely formed, or can be fixed to the inner cavity of the bubble shell body 1.1 through the positioning hole 1.4 after the glass bubble shell 1 is completely formed. Generally, the positioning member 5 is located at the axis of the glass bubble shell 1.

[0032] The input end of the driving module 3 is electrically connected to the top and the circumferential outer wall of the lamp cap 2 by welding. When the lamp cap 2 and the glass bubble shell 1 are connected by cement, the cement also bonds the circuit board 3.1 of the driving module 3, thereby fixing the driving module 3.

[0033] A manufacturing method for manufacturing the integrated glass bubble shell straight strip lamp is also provided, which comprises the following steps:

[0034] S1, manufacturing the glass bubble shell 1; the bubble shell body 1.1 and the closing portion 1.3 are separately manufactured in advance by using existing process, the closing portion 1.3 has a positioning tube 1.2 at the center, the inner hole of the positioning tube 1.2 serves as the positioning hole 1.4, then the upper end opening of the bubble shell body 1.1 and the closing portion 1.3 are connected into one body by sintering process, and the positioning tube 1.2 faces the inner cavity of the bubble shell body 1.1,

[0035] Alternatively, the bubble shell body 1.1 is manufactured in advance, then the upper end of the bubble shell body 1.1 is heated to be softened, and the closing portion 1.3 is shaped by a mold in the softened state, the closing portion 1.3 has a positioning tube 1.2 at the center, and the inner hole of the positioning tube 1.2 serves as the positioning hole 1.4;

[0036] Before the bubble shell body 1.1 is formed, the positioning member 5 for positioning the lower end of the lampwick 4 is bonded and fixed into the inner cavity of the bubble shell body 1.1, or after the glass bubble shell 1 is formed, the positioning member 5 is bonded and fixed into the inner cavity of the bubble shell body 1.1 through the positioning hole 1.4;

[0037] S2, manufacturing the lampwick 4, inserting the light emitting component 4.2 into the sleeve 4.1, fixing the upper end of the sleeve 4.1 to the circuit board 3.1 of the driving module 3, welding the electrodes (i.e. positive and negative electrodes) of the light emitting component 4.2 to the connection points of the output end of the driving module 3 one by one, so that the lampwick 4 and the driving module 3 form an integral whole, a sealing member 4.3 is provided outside the sleeve 4.1, and is inserted into the inner cavity of the lamp through the positioning hole 1.4, the lower end of the sleeve 4.1 is inserted into the hole of the positioning member 5, and the sealing member 4.3 is pressed to close the space between the outer wall of the lampwick 4 and the inner wall of the positioning hole 1.4, so as to avoid the external water vapor entering the inner cavity of the bubble shell body 1.1 from this place;

[0038] S3, assembling the lamp cap 2, covering the driving module 3, and then fixing and connecting the lamp cap 2, the driving module 3 and the glass bulb 1 by using cement, and welding the two wires of the input end of the driving module 3 with the top and the circumferential outer wall of the lamp cap 2.

[0039] In the step 2, the upper end of the sleeve 4.1 is fixed on the bottom of the circuit board 3.1 of the driving module 3 by gluing, or a through hole is formed in the middle of the circuit board 3.1, the sleeve 4.1 of the wick 4 is fixed in the through hole by interference, or the sleeve 4.1 is matched with the through hole by clearance and then fixed by gluing, so as to realize the fixed connection of the wick 4 and the driving module 3.

[0040] The light emitting principle of the present application is the same as that of the existing LED bulb, that is, after the lamp cap 2 is introduced into alternating current, the driving module 3 converts the alternating current into direct current, and the light emitting part 4.2 of the wick 4 is lightened. When the glass bulb 1 is intact and the remaining parts are damaged, the lamp cap 2 and the glass bulb 1 can be separated by using a tool, or the lamp cap 2 can be directly damaged, the cement is cleaned, the damaged parts are replaced, and then the new bulb is assembled with the original glass bulb 1 and the new lamp cap 2. When the glass bulb 1 is damaged and the remaining parts are intact, the driving module 3 and the wick 4 can be removed, and then a new bulb is assembled with a new glass bulb 1 and a new lamp cap 2. In the above process, the lamp cap 2 can be reused according to the actual situation.

[0041] The above only describes the preferred embodiments of the present application, and the present application can be variously changed and modified for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated straight strip lamp with glass bulb, comprising a glass bulb (1), a lamp cap (2) fixedly connected to the upper end of the glass bulb (1), a driving module (3) arranged in the lamp cap (2), and a wick (4) connected to the driving module (3), characterized in that: The glass bubble shell (1) is composed of a bubble shell body (1.1) and a closing part (1.3) arranged on the upper end of the bubble shell body (1.1) and integrated with the bubble shell body (1.1), the closing part (1.3) has at least one positioning hole (1.4), the wick (4) passes through the positioning hole (1.4) and extends into the inner cavity of the bubble shell body (1.1), the wick (4) is provided with at least one light emitting component (4.2) driven by the driving module (3); The outer wall of the wick (4) is sleeved with a sealing element (4.3), which is used for positioning the wick and sealing the space between the outer wall of the wick (4) and the inner wall of the positioning hole (1.4); The inner cavity of the glass bubble shell (1) is provided with a positioning element (5) for positioning the wick (4), and the positioning element (5) is detachably connected with the wick (4).

2. The integrated glass bulb straight strip lamp according to claim 1, characterized in that: The bubble shell body (1.1) and the closing part (1.3) are separately made and integrated by a sintering process; or the closing part (1.3) is formed by softening the upper end of the bubble shell body (1.1) and molding by a mold.

3. The integral glass bulb straight tube lamp according to claim 1, characterized in that: The wick (4) is composed of a sleeve (4.1) and the light emitting component (4.2) arranged in the sleeve (4.1).

4. The integral glass bulb straight tube lamp according to claim 3, characterized in that: The light emitting component (4.2) is a straight strip-shaped LED filament or a spiral-shaped LED filament.

5. The integral glass bulb straight strip lamp according to claim 3, characterized in that: The upper end of the sleeve (4.1) of the wick (4) is fixed on the bottom of the circuit board (3.1) of the driving module (3), or a through hole is formed on the circuit board (3.1) of the driving module (3), and the sleeve (4.1) of the wick (4) is fixed in the through hole, so as to realize the fixed connection of the wick (4) and the driving module (3).

6. A manufacturing method for manufacturing the integral glass bulb straight strip lamp according to any one of claims 1 to 5, characterized by The steps include: S1, making a glass bubble shell (1), the upper end of the formed glass bubble shell (1) has at least one positioning hole (1.4); S2, assembling the wick (4) and fixing it to the driving module (3), welding the electrode of the light emitting component (4.2) of the wick (4) with the output end of the driving module (3); inserting the wick (4) into the glass bubble shell (1) from the positioning hole (1.4), and sealing the space between the outer wall of the wick (4) and the inner wall of the positioning hole (1.4) by using the sealing element (4.3); S3, assembling the lamp cap (2), covering the driving module (3) with the lamp cap (2) and fixedly connecting it to the glass bubble shell (1), and welding the input end of the driving module (3) with the lamp cap (2).

7. The production method according to claim 6, wherein: In the step S1, the glass bubble shell (1) is integrated by the bubble shell body (1.1) and the closing part (1.3) which are separately made by a sintering process, and the closing part (1.3) is pre-formed with at least one positioning hole (1.4); Or, the closing part (1.3) is formed by molding the upper end of the bubble shell body (1.1) in a softened state by a mold, and the positioning hole (1.4) is formed together with the closing part (1.3).

8. The production method according to claim 6, wherein: In the step S1, before the bubble shell body (1.1) is connected with the closing part (1.3) as a whole, the positioning member (5) for positioning the lampwick (4) is fixed into the inner cavity of the bubble shell body (1.1), or after the glass bubble shell (1) is formed, the positioning member (5) is fixed into the inner cavity of the bubble shell body (1.1) through the positioning hole (1.4).

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