Bulb shell lamp

Abstract

The utility model relates to a bulb shell lamp which comprises a lamp holder, a bulb shell and a core column, the core column is arranged in the bulb shell, the bulb shell is connected with the lamp holder, a driving power supply is arranged in the lamp holder, an anode pin and a cathode pin are respectively arranged on the core column in the bulb shell, and the anode pin and the cathode pin penetrate through the core column to be electrically connected with the driving power supply in the lamp holder. A filament light source and an onboard light source are arranged in the bulb shell, the filament light source comprises a plurality of LED straight filaments, and the onboard light source comprises a substrate and a luminous body arranged on the substrate; the LED straight lamp filaments are distributed on the peripheral side of the core column, the substrate is arranged at the top ends of the LED straight lamp filaments with the lamp filament light source as a support, and the light emitting direction of the light emitting bodies on the substrate faces the top of the bulb shell. The LED straight lamp filaments are distributed on the peripheral side of the core column, the substrate and the luminous bodies on the substrate are arranged at the top ends of the LED straight lamp filaments, the distribution of a light source in the bulb shell is more reasonable through the layout mode, and the uniformity and efficiency of illumination can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of lighting, and particularly relates to a bulb lamp. Background Art

[0002] A bulb lamp usually has a bulb shell arranged outside a filament light source or a board-mounted light source. This can not only protect the filament light source or the board-mounted light source, but also has a retro style and is relatively beautiful. The light emitted by the filament light source is relatively divergent, but the light at both ends of the filament light source is significantly less than the light on the periphery of the filament light source. The light of the board-mounted light source generally can only be emitted towards one side of the substrate. That is to say, when using a filament light source or a board-mounted light source in a bulb shell or the like to illuminate a certain range of space, there are obvious areas or directions with relatively dim light. And in the prior art, whether it is a filament light source or a board-mounted light source separately arranged in the bulb shell, when it is shaken, it will inevitably cause the position of the filament light source or the board-mounted light source to shift. The main reason is that the filament light source or the board-mounted light source is mainly positioned and connected to the inside of the bulb shell through pins. When the pins are shaken greatly or shaken repeatedly in a single direction, they are prone to twist and deform towards one side, thus causing the filament light source or the board-mounted light source to shift. Content of the Utility Model

[0003] Aiming at the above-mentioned prior art, the purpose of the utility model is to provide a bulb lamp with more uniform light.

[0004] The technical solution of the utility model is realized as follows: A bulb lamp includes a lamp head, a bulb shell and a stem. The stem is placed inside the bulb shell, and after the open end of the bulb shell and the stem are sealed, they are connected to the lamp head. A driving power supply is arranged inside the lamp head. A positive pin and a negative pin are respectively arranged on the stem inside the bulb shell, and the positive pin and the negative pin pass through the stem and are electrically connected to the driving power supply inside the lamp head. Its characteristics are that a filament light source and a board-mounted light source are arranged inside the bulb shell. The filament light source includes a plurality of LED straight filaments, and the board-mounted light source includes a substrate and a light-emitting body arranged on the substrate; each LED straight filament is distributed around the stem, the substrate is supported by the filament light source and is arranged at the top of each LED straight filament, the light-emitting direction of the light-emitting body on the substrate faces the top of the bulb shell, and the filament light source and the board-mounted light source are connected in series, in parallel or in series-parallel and then are respectively electrically connected to the positive pin and the negative pin.

[0005] Further, an installation positioning hole is arranged in the middle of the substrate. The stem includes a column extending axially towards the top of the bulb shell. The positive pin and the negative pin are both rigid pins. The upper ends of each LED straight filament are connected to the periphery of the substrate, and their lower ends are respectively connected to the positive pin and the negative pin. The periphery of the substrate is restricted by each LED straight filament and its middle part is placed on the top of the column through the installation positioning hole.

[0006] Further, the top end of the column is a limiting head, and the installation positioning hole on the substrate is connected in a matching manner with the limiting head.

[0007] Further, each LED strip filament is divided into a first filament group and a second filament group. The pins at the lower end of the first filament group are electrically connected to the positive electrode pin, and the pins at the lower end of the second filament group are electrically connected to the negative electrode pin. The pins at the upper ends of the first filament group and the second filament group are respectively connected to the substrate. After being powered on, the positive electrode pin is connected to the negative electrode pin through the first filament group, the light-emitting body, and the second filament group to form a light-emitting circuit.

[0008] Further, the substrate is circular, and a plurality of sockets are provided on its circumferential side. The upper pins of the LED strip filaments constituting the first filament group and the second filament group are respectively inserted into the sockets and then soldered. The positive electrode of the light-emitting body is electrically connected to the upper pin of the first filament group, and its negative electrode is electrically connected to the upper pin of the second filament group.

[0009] Further, the light-emitting body includes a fluorescent glue layer and a plurality of LED chips connected in series, parallel, or in series-parallel on the substrate. The fluorescent glue layer integrally covers each LED chip to the substrate.

[0010] Further, the light-emitting body includes a plurality of surface mount light beads, and each surface mount light bead is respectively laid in series, parallel, or in series-parallel on the substrate.

[0011] Further, the filament light source includes two or more and an even number of LED strip filaments.

[0012] Further, an air pipe is provided inside the core column. The upper end of the air pipe penetrates the core column and communicates with the sealed space inside the bulb shell, and inert gas is injected through the air pipe. The lower end of the air pipe is sintered and sealed.

[0013] The beneficial effects of such a design are as follows: By directly or indirectly fixing the filament light source and the board-mounted light source on the core column, and utilizing the restraint effect of the LED strip filaments and the cooperation between the mounting positioning holes in the middle of the substrate and the upright columns of the core column, the position deviation of the light source during shaking is effectively prevented. The positive electrode pin and the negative electrode pin, as rigid pins, provide stable electrical connection and also contribute to maintaining the overall structural stability of the light source.

[0014] The LED strip filaments are distributed on the circumferential side of the core column, while the substrate and the light-emitting body thereon are arranged at the top of the LED strip filaments. This layout makes the distribution of the light source in the bulb shell more reasonable, which helps to improve the uniformity and efficiency of illumination. The light-emitting direction of the light-emitting body faces the top of the bulb shell, and this design helps to achieve directional lighting and meet the requirements of specific application scenarios. The positive electrode pin is connected to the negative electrode pin through the first filament group, the light-emitting body, and the second filament group to form a light-emitting circuit, which simplifies the circuit and reduces production costs. The even number of LED strip filaments facilitates the circuit design, and the inert gas plays a protective role for the light-emitting body and the circuit.

[0015] Since both the light source and the pins are fixed on the stem, and the open end of the bulb is sealed with the stem and then connected to the lamp cap, the assembly process of the entire bulb lamp is simpler and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of a bulb lamp of the present utility model;

[0017] Figure 2 is Figure 1 Semi-sectional view in the A-A direction in

[0018] Figure 3 Schematic diagram of removing the bulb of a bulb lamp of the present utility model;

[0019] Figure 4 Explosion schematic diagram of removing the bulb of a bulb lamp of the present utility model;

[0020] Figure 5 Explosion schematic diagram of removing the bulb of a bulb lamp of the present utility model from another angle;

[0021] Figure 6 For Example 2, the on-board light source is in Figure 3 Schematic diagram observed in the B direction in

[0022] Figure 7 is Figure 6 Semi-sectional view in the C-C direction in

[0023] Figure 8 For Example 3, the on-board light source is in Figure 3 Schematic diagram observed in the B direction in

[0024] Figure 9 Semi-sectional view of the on-board light source in Example 3. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] As needed, detailed embodiments of the present utility model are disclosed herein, but it should be understood that the disclosed embodiments are only illustrative of the present utility model, and the present utility model can be implemented in different and alternative forms. The drawings are not necessarily drawn to scale, and some features may be exaggerated or reduced to show details of specific components. Therefore, the specific structures and functional details disclosed herein should not be construed as having a limiting meaning, but only as a representative basis for teaching those skilled in the art to implement the present utility model differently. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0026] Example 1:

[0027] As Figure 1 , Figure 2 , Figure 3 ,Figure 4 and Figure 5 As shown in Figure 5 , a bulb lamp includes a lamp base 1, a bulb 2 and a stem 3. The stem 3 is placed inside the bulb 2. After the open end of the bulb 2 and the stem 3 are sealed, they are connected to the lamp base 1. A driving power source 4 is arranged inside the lamp base 1. The driving power source 4 can convert the power supplied by the power grid into a specific voltage and current to drive the LED to emit light. On the stem 3 inside the bulb 2, a positive pin 51 and a negative pin 52 are respectively arranged, and the positive pin 51 and the negative pin 52 pass through the stem 3 and are electrically connected to the driving power source 4 inside the lamp base 1. A filament light source 6 and a board-mounted light source 7 are arranged inside the bulb 2. The filament light source 6 includes a plurality of LED strip filaments 61, and the board-mounted light source 7 includes a substrate 71 and a light-emitting body 72 arranged on the substrate. Each LED strip filament 61 is distributed on the periphery of the stem 3. The substrate 71 is arranged at the top of each LED strip filament 61 with the filament light source 6 as a support. The light-emitting direction of the light-emitting body 72 on the substrate 71 faces the top of the bulb 2. The filament light source 6 and the board-mounted light source 7 are connected in series, in parallel or in series-parallel and then respectively electrically connected to the positive pin 51 and the negative pin 52. The series connection, parallel connection or series-parallel connection can be selected according to factors such as the voltage of the driving power source 4 and the power of the bulb lamp.

[0028] As Figure 4 and Figure 5 shown in Figure 5 , a mounting positioning hole 74 is provided in the middle of the substrate 71. For the convenience of manufacturing, the mounting positioning hole 74 is circular. The stem 3 includes a column 31 extending axially towards the top of the bulb. The positive pin 51 and the negative pin 52 are both rigid pins and can be made of conductive metal wires. The upper ends of each LED strip filament 61 are connected to the periphery of the substrate 71, and their lower ends are respectively connected to the positive pin 51 and the negative pin 52 and can be directly soldered together. The periphery of the substrate 71 is constrained by each LED strip filament 61 and its middle part is placed on the top of the column 31 through the mounting positioning hole 74. The substrate 71 and the LED strip filament 61 have a certain limiting function with respect to each other.

[0029] As Figure 3 , Figure 4 and Figure 5 shown in Figure 3 , Figure 4 and Figure 5 , the top end of the column 31 is a limiting head 32. The mounting positioning hole 74 on the substrate 71 is connected in a matching manner with the limiting head 32. The limiting head 32 can be provided with an inclined conical surface 311 that protrudes locally relative to the limiting head 32 to limit the position of the mounting positioning hole 74.

[0030] As Figure 4 and Figure 5As shown, each LED strip filament 61 is evenly divided into a first filament group 63 and a second filament group 62. The pins at the lower end of the first filament group 63 are electrically connected to the positive electrode pin 51, and the pins at the lower end of the second filament group 62 are electrically connected to the negative electrode pin 52. The pins at the upper ends of the first filament group 63 and the second filament group 62 are respectively connected to the substrate 71. After being powered on, the positive electrode pin 51 is connected to the negative electrode pin 52 through the first filament group 63, the light-emitting body 72, and the second filament group 62 to form a light-emitting circuit. The light-emitting body 72 can be LED lamp beads of different colors. Printed wires or leads can be embedded on the filament light source 6 as the power supply line for the on-board light source 7, so that the filament light source 6 and the on-board light source 7 can be connected in parallel.

[0031] As Figure 4 and Figure 5 shown, the substrate 71 is circular, and a plurality of sockets 73 are provided on its peripheral side. The pins at the upper ends of each LED strip filament 61 in the first filament group 63 and the second filament group 62 are respectively inserted into the sockets 73 and then soldered. The positive electrode of the light-emitting body 72 is electrically connected to the pin at the upper end of the first filament group 63, and its negative electrode is electrically connected to the pin at the upper end of the second filament group 62 respectively. If the LED strip filament 61 is connected in parallel with the on-board light source 7, then multiple pins are provided at the upper end of the LED strip filament 61 so that the on-board light source 7 can be electrically connected to the positive electrode pin 51 and the negative electrode pin 52.

[0032] As Figure 4 and Figure 5 shown, the filament light source 6 includes two or more and an even number of LED strip filaments 61, and the filament light source 6 is a ceramic filament.

[0033] As Figure 2 shown, an air tube 33 is provided inside the stem 3. The upper end of the air tube 33 penetrates through the stem 3 and communicates with the sealed space inside the bulb 2, and inert gas is injected through the air tube 33. The lower end of the air tube 33 is sintered and sealed.

[0034] Embodiment 2:

[0035] As Figure 6 and Figure 7 shown, for a bulb lamp, the designs of the lamp cap 1, the bulb 2, the stem 3, etc. refer to Embodiment 1. The on-board light source 7 includes a substrate 71 and a light-emitting body 72 arranged on the substrate. The light-emitting body 72 includes a fluorescent glue layer 721 and a number of LED chips 722 connected in series, parallel, or in series-parallel on the substrate 71. The fluorescent glue layer 721 entirely covers each LED chip 722 to the substrate 71.

[0036] Embodiment 3:

[0037] As Figure 8 and Figure 9As shown, a bulb lamp, the lamp cap 1, the bulb 2, the stem 3, etc. are designed with reference to Embodiment 1. The light-emitting body 72 includes a plurality of SMD lamp beads 75, and each SMD lamp bead 75 is respectively laid in series, parallel or series-parallel on the substrate 71.

Claims

1. A bulb lamp, comprising a lamp holder (1), a bulb (2) and a stem (3), wherein the stem (3) is placed in the bulb (2), and the bulb (2) is connected to the lamp holder (1) after the open end of the bulb (2) is sealed with the stem (3), a driving power source (4) is arranged in the lamp holder (1), a positive electrode pin (51) and a negative electrode pin (52) are respectively arranged on the stem (3) in the bulb (2), and the positive electrode pin (51) and the negative electrode pin (52) pass through the stem (3) to be electrically connected to the driving power source (4) in the lamp holder (1), characterized in that: A filament light source (6) and a board-mounted light source (7) are arranged in the bulb shell (2); the filament light source (6) comprises a plurality of LED straight filaments (61); and the board-mounted light source (7) comprises a substrate (71) and a light emitter (72) arranged on the substrate; each of the LED straight filaments (61) is distributed around the stem (3); the substrate (71) is arranged on the top of each of the LED straight filaments (61) with the filament light source (6) as support; the light emission direction of the light emitter (72) on the substrate (71) faces the top of the bulb shell (2); and the filament light source (6) and the board-mounted light source (7) are electrically connected to the positive electrode pin (51) and the negative electrode pin (52) respectively after being connected in series, in parallel, or in series and in parallel.

2. The bulb lamp according to claim 1, characterized in that: A mounting positioning hole (74) is provided in the middle of the substrate (71); the core column (3) comprises a column (31) extending axially toward the top of the bulb shell; the positive pin (51) and the negative pin (52) are both rigid pins; the upper end of each LED straight filament (61) is connected to the peripheral side of the substrate (71); the lower end of each LED straight filament (61) is respectively connected to the positive pin (51) and the negative pin (52); the peripheral side of the substrate (71) is restrained by each LED straight filament (61) and the middle part thereof is placed on the top of the column (31) through the mounting positioning hole (74).

3. The bulb lamp according to claim 2, characterized in that: The top end of the upright column (31) is a limit head (32), and a positioning hole (74) is installed on the base plate (71) and is cooperatively connected to the limit head (32).

4. The bulb lamp according to claim 1, characterized in that: Each of the LED straight filaments (61) is divided into a first filament group (63) and a second filament group (62); the pins at the lower end of the first filament group (63) are electrically connected to the positive electrode pin (51); the pins at the lower end of the second filament group (62) are electrically connected to the negative electrode pin (52); and the pins at the upper ends of the first filament group (63) and the second filament group (62) are respectively connected to the substrate (71); After power is supplied, the positive electrode pin (51) is connected to the negative electrode pin (52) via the first filament group (63), the light-emitting body (72), and the second filament group (62) to form a light-emitting circuit.

5. The bulb lamp according to claim 4, characterized in that: The substrate (71) is circular, and a plurality of sockets (73) are provided on the circumference of the substrate (71). The upper pins of the LED straight filaments (61) constituting the first filament group (63) and the second filament group (62) are respectively inserted into the sockets (73) and then soldered. The positive electrode of the light-emitting body (72) is electrically connected to the pins at the upper end of the first filament group (63), and the negative electrode of the light-emitting body (72) is electrically connected to the pins at the upper end of the second filament group (62).

6. The bulb lamp according to claim 1 or 4, characterized in that: The light emitting body (72) comprises a fluorescent glue layer (721) and a plurality of LED chips (722) connected in series, in parallel or in series and in parallel on the substrate (71); the fluorescent glue layer (721) entirely covers each LED chip (722) to the substrate (71).

7. The bulb lamp according to claim 1 or 4, characterized in that: The light emitting body (72) comprises a plurality of SMD lamp beads (75), and each SMD lamp bead (75) is laid on the substrate (71) in series, in parallel, or in series and parallel.

8. The bulb lamp according to claim 1, characterized in that: The filament light source (6) comprises an even number of LED straight filaments (61).

9. The bulb lamp according to claim 1, characterized in that: An air pipe (33) is provided in the core column (3), the upper end of the air pipe (33) passes through the core column (3) and is connected to the closed space in the bulb shell (2), and an inert gas is injected through the air pipe (33), and the lower end of the air pipe (33) is sintered and sealed.

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