Double-cover sealing type bulb

Abstract

The utility model discloses a double-cover sealing type bulb which comprises a glass outer cover, a glass inner cover, a power source, an inner cover core column and an outer cover core column, the inner cover core column is fixed on the outer side of the outer cover core column, the glass inner cover is located inside the glass outer cover, and the lower end of the inner cover core column expands outwards in an arc mode and is fixedly connected with the lower end of the glass inner cover. The lower end of the outer cover core column expands outwards in an arc shape and is fixedly connected with the lower end of the glass outer cover, a sealing rubber plug is fixed in the outer cover core column, an exhaust pipe is arranged in the middle of the sealing rubber plug, an LED module is installed in the upper end of the exhaust pipe, and a wire of the LED module sequentially penetrates through the exhaust pipe and the sealing rubber plug and then is connected to a power source. According to the double-cover sealing type bulb, a double-cover structure is adopted, the glass inner cover is vacuumized under the action of the exhaust pipe and the sealing rubber plug, the requirement for electric connection of the LED module can be met, and the applicability of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light bulbs, in particular to a double-cover sealed light bulb. Background Art

[0002] A light bulb is a lighting source that generates light and heat through electrical energy. Conventional light bulbs are constructed with a single glass cover, which lacks sealing and cannot meet the modern demand for diverse light bulb structures. Utility Model Content

[0003] One purpose of the present utility model is to provide a double-cover sealed light bulb, which adopts a double-cover structure and can meet the installation requirements of the LED module while ensuring the sealing performance.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A double-cover sealed bulb comprises a glass outer cover, a glass inner cover, a power supply, an inner cover stem and an outer cover stem, wherein the inner cover stem is fixed to the outside of the outer cover stem, the glass inner cover is located inside the glass outer cover, the lower end of the inner cover stem is arc-shaped outwardly flared and fixedly connected to the lower end of the glass inner cover, the lower end of the outer cover stem is arc-shaped outwardly flared and fixedly connected to the lower end of the glass outer cover, a sealing plug is fixed in the outer cover stem, an exhaust pipe is provided in the middle of the sealing plug, an LED module is installed in the upper end of the exhaust pipe, and the wires of the LED module pass through the exhaust pipe and the sealing plug in sequence and are connected to the power supply.

[0006] As a preferred technical solution, a sealed state is formed between the glass inner cover and the inner cover core column, an exhaust hole is left on the side of the inner cover glass, the upper end of the exhaust pipe extends to the inside of the glass inner cover, and the lower end of the exhaust pipe is in a sealed state.

[0007] As a preferred technical solution, the upper end of the LED module passes through the upper end of the exhaust pipe, and the lower end of the LED module passes through the middle side wall of the exhaust pipe.

[0008] As a preferred technical solution, a lamp holder is provided at the lower end of the power supply, the power supply and the lamp holder are electrically connected, a connecting thread is provided on the outside of the lamp holder, and the upper end of the connecting thread is sleeved on the outer side of the lower end of the glass cover.

[0009] As a preferred technical solution, the LED module is an LED hard filament strip, an LED flexible filament strip, an LED SMD module, etc.

[0010] The beneficial effects of the present invention are: providing a double-cover sealed bulb, which adopts a double-cover structure. Under the action of the exhaust pipe and the sealing plug, the glass inner cover is vacuumed, and the electrical connection of the LED module can be met, thereby improving the applicability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 An exploded view of a double-shield sealed light bulb according to an embodiment;

[0013] Figure 2 This is an overall structural diagram of a double-shield sealed light bulb according to an embodiment;

[0014] Figure 3 A cross-sectional view of a double-shield sealed light bulb according to an embodiment;

[0015] Figure 4 This is a schematic structural diagram of the glass inner cover according to the embodiment;

[0016] Figure 5 Schematic diagram of the structure of the outer cover core column described in the embodiment.

[0017] Figures 1 to 5 middle:

[0018] 1. Glass outer cover; 2. Glass inner cover; 3. Power supply; 4. Inner cover core; 5. Outer cover core; 6. Sealing plug; 7. Exhaust pipe; 8. LED module; 9. Lamp holder; 10. Wires; 11. Exhaust hole. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0020] like Figures 1 to 5 As shown, in this embodiment, a double-cover sealed bulb includes a glass outer cover 1, a glass inner cover 2, a power supply 3, an inner cover stem 4 and an outer cover stem 5. The inner cover stem 4 is fixed to the outside of the outer cover stem 5, the glass inner cover 2 is located inside the glass outer cover 1, the lower end of the inner cover stem 4 is arc-shaped outward and fixedly connected to the lower end of the glass inner cover 2, the lower end of the outer cover stem 5 is arc-shaped outward and fixedly connected to the lower end of the glass outer cover 1, a sealing plug 6 is fixed in the outer cover stem 5, an exhaust pipe 7 is provided in the middle of the sealing plug 6, an LED module 8 is installed inside the upper end of the exhaust pipe 7, and the wire 10 of the LED module 8 passes through the exhaust pipe 7 and the sealing plug 6 in sequence and is connected to the power supply 3.

[0021] In a more specific structure, a sealed state is formed between the glass inner cover 2 and the inner cover core column 4, an exhaust hole 11 is left on the side of the inner cover glass 2, the upper end of the exhaust pipe 7 extends to the interior of the glass inner cover 2, and the lower end of the exhaust pipe 7 is in a sealed state. The upper end of the LED module 8 passes through the upper end of the exhaust pipe 7, and the lower end of the LED module 8 passes through the middle side wall of the exhaust pipe 7. A lamp holder 9 is provided at the lower end of the power supply 3, and the power supply 3 and the lamp holder 9 are electrically connected. A connecting thread is provided on the outer side of the lamp holder 9, and the upper end of the connecting thread is fixed to the outer side of the lower end of the glass outer cover 1.

[0022] Structural description: The inner cover core column 4 is fixed on the outer cover core column 5, the glass inner cover 2 and the inner cover core column 4 are sealed together at high temperature, and then the outer cover core column 5 with the LED module 8 is welded and sealed together with the glass outer cover 1 at high temperature, so that the glass inner cover 2 with the inner cover core column 4 is fixed inside the glass outer cover 1 with the outer cover core column 5, and the exhaust pipe 7 is pre-formed on the sealing plug 6, the LED module 8 is installed on the exhaust pipe 7, and the wires 10 at both ends of the LED module 8 are passed through the sealing plug 6 to form a sealed module, and the sealing plug 6 is inserted into the lower end of the outer cover core column 5 for fixing, and the exhaust pipe 7 is used to vacuum the glass inner cover 2 and the glass outer cover 1. After completion, the lower end of the exhaust pipe 7 is sintered and sealed, and finally the two wires 10 of the LED module 8 are passed through the sealing plug 6 and connected to the power supply 3, the power supply 3 is installed in the lamp holder 9, and the lamp holder 9 and the glass outer cover 1 are sealed and fixed.

[0023] It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present invention and the technical principles used. Within the technical scope disclosed by the present invention, any changes or replacements that can be easily thought of by technicians familiar with this technical field should be included in the scope of protection of the present invention.

Claims

1. A double-shielded sealed light bulb, characterized in that: The invention comprises a glass outer cover, a glass inner cover, a power supply, an inner cover core column and an outer cover core column, wherein the inner cover core column is fixed on the outside of the outer cover core column, the glass inner cover is located inside the glass outer cover, the lower end of the inner cover core column is arc-shaped outwardly expanded and fixedly connected to the lower end of the glass inner cover, the lower end of the outer cover core column is arc-shaped outwardly expanded and fixedly connected to the lower end of the glass outer cover, a sealing plug is fixed in the outer cover core column, an exhaust pipe is provided in the middle of the sealing plug, an LED module is installed in the upper end of the exhaust pipe, and the wires of the LED module pass through the exhaust pipe and the sealing plug in sequence and are connected to the power supply.

2. A double-shielded sealed light bulb according to claim 1, characterized in that: A sealed state is formed between the glass inner cover and the inner cover core column, an exhaust hole is left on the side of the inner cover glass, the upper end of the exhaust pipe extends to the inside of the glass inner cover, and the lower end of the exhaust pipe is in a sealed state.

3. The double-shielded sealed light bulb according to claim 1, characterized in that: The upper end of the LED module passes through the upper end of the exhaust pipe, and the lower end of the LED module passes through the middle side wall of the exhaust pipe.

4. The double-shielded sealed light bulb according to claim 1, characterized in that: A lamp holder is provided at the lower end of the power supply, and the power supply and the lamp holder are electrically connected. A connecting thread is provided on the outer side of the lamp holder, and the upper end of the connecting thread is sleeved on the outer side of the lower end of the glass cover.

5. The double-shielded sealed light bulb according to claim 1, characterized in that: The LED module is an LED hard filament bar, an LED flexible filament bar or an LED SMD module.

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