CN216924052U

CN216924052U - LED bulb

Info

Publication number: CN216924052U
Application number: CN202220726895.7U
Authority: CN
Inventors: 钟建华; 傅根生
Original assignee: Deqing Ding Hui Light Co ltd
Current assignee: Deqing Ding Hui Light Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-08
Anticipated expiration: 2032-03-30

Abstract

The utility model relates to an LED bulb which comprises a base, a lamp shell connected to the base and a driving plate arranged between the lamp shell and the base, wherein the lower end of the driving plate is electrically connected with two electric connection parts for enabling filaments to be in transitional connection, a clamping groove used for limiting the filaments is formed in the side wall of the driving plate, the two filaments penetrate through the clamping groove and are spirally wound on the electric connection parts, and the lower end of the driving plate is electrically connected with two leads used for connecting an external circuit. Compared with the traditional bulb in which the filament and the lead are directly connected in a welding mode, the production process and difficulty are increased, and the connection of welding points is not very reliable; the lamp filament is spirally wound on the electric connection part in a connection transition mode, the electric connection part is electrically connected to the driving board, the driving board is connected with an external circuit through a lead, and the spiral winding not only increases the connection tightness, but also can ensure good conductivity.

Description

LED bulb

Technical Field

The utility model belongs to the technical field of lamps, and particularly relates to an LED bulb.

Background

The LED is widely applied to various fields and equipment as an energy-saving and green light source, and has different requirements on the performance of the LED along with different application scenes; for example, in high temperature environments such as microwave ovens and ovens, the bulb is required to have certain high temperature resistance, and the traditional incandescent lamp not only has high energy consumption but also has short service life in the high temperature environment, which is not in line with actual requirements; at present, the LED is also adopted as a light source and is respectively connected to the lamp strip and an external circuit through a filament lead, so that the energy consumption is saved, the service life of the lamp strip can be prolonged, however, the filament is generally made of iron nickel plating materials and is different from the lead materials, extra processes are needed to process connection point positions when welding is adopted, the welding mode is adopted, the defect that the temperature resistance of the connection point position is not high is overcome, and the LED lamp strip is not very reliable when being applied under a high-temperature environment.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide an LED bulb which has better high temperature resistance and long service life, and further improves the stability in use and the convenience in production by the transitional connection mode of the winding connection of the arranged electric connection part and the filament.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an LED bulb comprises a base, a lamp shell connected to the base and a driving plate arranged between the lamp shell and the base, wherein a glass support is arranged in the lamp shell, a glass core column is integrally connected to the glass support, two lamp filaments for leading in current are arranged in the glass support, at least one LED lamp bar is arranged beside the glass core column, and two ends of the lamp bar are electrically connected with the end parts of the two lamp filaments respectively; the lamp filament driving device is characterized in that the lower end of the driving board is also electrically connected with two electric connecting parts used for enabling the lamp filaments to be in transitional connection, clamping grooves used for limiting the lamp filaments are formed in the side wall of the driving board, the two lamp filaments penetrate through the clamping grooves to be spirally wound on the electric connecting parts, and the lower end of the driving board is also electrically connected with two leads used for connecting an external circuit.

When the lamp is used, the two leads are used for connecting an external circuit to lead current, so that the current flows into the driving board and then flows to the lamp filament through the electric connecting part, then flows through the lamp strip to emit light for illumination or indication, the glass support and the glass core column support the lamp filament, and simultaneously the lamp filament can be connected and positioned, in the connection of the lamp filament and the leads, the electric connecting part on the driving board plays a role in transitional connection, different materials of the lamp filament and the leads need to be processed by other procedures during welding, the cost is increased, the production efficiency is reduced, and the lamp is not very reliable in practical application due to the property of low temperature resistance of a welding point; the problem that the two materials are different is not only solved to the transitional action of electricity connecting portion, and the filament is the heliciform winding on electricity connecting portion, not only can make the filament can be in the same place with electricity connecting portion can zonulae occludens, also can guarantee good electric conductivity, also produces more easily for the welded mode.

Preferably, the electric connection part is further sleeved with an insulating sleeve, an external thread is arranged at the lower end of the electric connection part, an internal thread protruding along the radial direction of the insulating sleeve is arranged at the lower end of the inner side wall of the insulating sleeve, and an accommodating cavity used for accommodating the spiral winding part of the filament is reserved between the insulating sleeve and the electric connection part when the insulating sleeve is spirally sleeved on the electric connection part.

The filament is when the spiral winding is to electric connection portion, on will pegging graft electric connection portion with the supporting insulating sleeve of electric connection portion again, then make external screw thread and internal thread closure realize fixedly through knob insulating sleeve, during the grafting, the holding chamber can hold filament winding part, does further zonulae occludens to filament and electric connection portion, guarantees the electric conductive property between the two, also prevents simultaneously that the accident of exterior structure in installation or use from touching and causing the condition such as short circuit.

Preferably, the driving board is a high-temperature-resistant PCB. The high temperature resistance of the driving plate can improve the service life of the bulb.

Preferably, the upper end of the driving plate is also provided with a rectifier bridge stack. The bridge stack may be used to adjust the direction of current flow in the bulb.

Preferably, the lower end of the driving plate is also provided with a high-temperature resistance. The high temperature resistance can improve the service life of the element on one hand and can be used for protecting the circuit on the other hand.

Preferably, the lower end of the base is further provided with a groove, two connecting pieces are arranged in the groove, and the two connecting pieces are electrically connected with the two leads respectively. The purpose of the connecting sheet is to connect the current for use through the connecting sheet in order to facilitate the integral installation of the bulb into an external carrier and connection into a circuit.

Preferably, the two ends of the base are also provided with mounting holes for connecting an external carrier. The mounting holes are also used for facilitating the mounting of the base on an external carrier, thereby fixing the position of the bulb and ensuring the firmness in use.

Compared with the prior art, the utility model has the beneficial effects that:

compared with the traditional bulb in which the filament and the lead are directly connected in a welding mode, the production process and difficulty are increased, and the connection of welding points is not very reliable; the lamp filament is spirally wound on the electric connection part in a connection transition mode, the electric connection part is electrically connected to the driving board, the driving board is connected with an external circuit through a lead, and the spiral winding not only increases the connection tightness, but also can ensure good conductivity.

The cup joint of insulating sleeve can further improve the tightness that filament and electric connection portion are connected on the one hand, prevents that the two from breaking away from or not hard up and causing contact failure's condition to appear, and on the other hand also can prevent the contact of electric connection portion and other wires, takes place the condition such as short circuit.

Drawings

FIG. 1 is a schematic view showing the overall structure of the top surface of a bulb according to the present invention;

FIG. 2 is a schematic view of the entire structure of the bottom surface of the bulb of the present invention;

FIG. 3 is a schematic view of the structure of the present invention with the base removed;

fig. 4 is a schematic view of an exploded structure of the bulb of the present invention;

FIG. 5 is a schematic view showing a connection structure of an electric connection portion and an insulating sleeve in the present invention;

FIG. 6 is a sectional view showing a connecting structure of an electric connecting portion and an insulating sleeve in the present invention;

fig. 7 is a schematic view of the explosion-proof connection of the electrical connection portion and the insulative sleeve in the present invention.

Description of the drawings: 1. a base; 2. a lamp housing; 3. a drive plate; 4. a glass support; 5. a glass core column; 6. a filament; 7. an LED light bar; 8. an electrical connection portion; 9. a lead wire; 10. a card slot; 11. a rectifier bridge stack; 12. high temperature resistance; 13. a groove; 14. connecting sheets; 15. mounting holes; 16. an insulating sleeve; 17. an external thread; 18. an internal thread; 19. an accommodating cavity.

Detailed Description

The following description of the embodiments of the present invention is provided with reference to the accompanying drawings.

In the embodiment, as shown in fig. 1 to 7, the LED bulb specifically includes a base 1, a lamp housing 2 connected to the base 1, and a driving board 3 disposed between the lamp housing 2 and the base 1, wherein a glass support 4 is disposed in the lamp housing 2, a glass stem 5 is integrally connected to the glass support 4, two filaments 6 for guiding current are disposed in the glass support 4, at least one LED light bar 7 is disposed beside the glass stem 5, and two ends of the LED light bar 7 are electrically connected to end portions of the two filaments 6 respectively; the lower end of the driving board 3 is also electrically connected with two electric connecting parts 8 for enabling the lamp filaments 6 to be in transitional connection, a clamping groove 10 for limiting the lamp filaments 6 is formed in the side wall of the driving board 3, the two lamp filaments 6 penetrate through the clamping groove 10 to be spirally wound on the electric connecting parts 8, and the lower end of the driving board 3 is also electrically connected with two lead wires 9 for connecting an external circuit.

When the bulb is installed for use, the two fuses 9 are respectively connected to the positive electrode and the negative electrode in the circuit, then current can flow into the driving board 3 along the leads 9 and then flow into the filament 6 and the LED lamp strip 7 through the transition of the electric connection part 8, so that the LED lamp strip 7 is lightened to illuminate or indicate; the traditional mode that the filament 6 and the fuse 9 are directly welded together is replaced by the spiral winding connection mode of the electric connection part 8 and the filament 6, so that not only is a complex welding process eliminated, but also the problem that the welding point is unreliable in connection in the subsequent high-temperature environment is solved, the electric connection part 8 and the filament 6 can be connected more closely, good conductive performance is guaranteed, the production is more convenient, and the working efficiency is greatly improved.

As shown in fig. 3 and fig. 5-7, the electrical connection portion 8 is further sleeved with an insulating sleeve 16, the lower end of the electrical connection portion 8 is provided with an external thread 17, the lower end of the inner side wall of the insulating sleeve 16 is provided with an internal thread 18 protruding in the radial direction of the insulating sleeve 16, and when the insulating sleeve 16 is screwed on the electrical connection portion 8, a receiving cavity 19 for receiving the spirally wound portion of the filament 6 is left between the insulating sleeve 16 and the electrical connection portion 8.

When the filament 6 is connected with the electric connection part 8, the filament 6 is spirally wound on the electric connection part 8, the external thread 17 at the lower end of the electric connection part 8 is exposed, then the insulating sleeve 16 matched with the electric connection part 8 is sleeved on the electric connection part 8, the internal thread 18 at the lower end inside the insulating sleeve 16 is locked with the external thread 17 through screwing, and as the internal thread 18 protrudes to the axis along the diameter direction of the insulating sleeve 16, the accommodating cavity 19 capable of accommodating the filament 6 is reserved between the insulating sleeve 16 and the electric connection part 8 after locking, the side wall of the accommodating cavity 19 can press the filament 6 to be tightly attached to the electric connection part 8, so that accidental touch of other structures can be prevented, and loosening or separation of the filament 6 and the electric connection part 8 can also be prevented.

As shown in FIGS. 3 and 4, the driving board 3 is a high temperature resistant PCB, and the model FR4-94V0 is made by Shenzhen famous Jiejie electronic Co., Ltd.

The upper end of the driving plate 3 is also provided with a rectifier bridge stack 11. The rectifier bridge stack 11 is used for adjusting the current in the circuit and ensuring the safety and reliability in use.

The lower end of the driving plate 3 is also provided with a high temperature resistance 12, the model of MF-1WS is used, and the high temperature resistance 12 can prolong the service life of the bulb on the premise of protecting the circuit.

As shown in fig. 2, a groove 13 is further formed at the lower end of the base 1, two connecting pieces 14 are disposed in the groove 13, and the two connecting pieces 14 are electrically connected with the two leads 9 respectively.

When daily use, for the convenience of use installation, can be connected fuze 9 and connection piece 14, rethread connection piece 14 and external circuit connect, easy to assemble and dismantlement have improved the convenience of using greatly.

As shown in fig. 2, the base 1 is further provided with mounting holes 15 at both ends for connecting external carriers. The mounting hole 15 is also used for fixing the position of the bulb, so as to prevent the bulb from being loose in connection due to the conditions of mistaken collision and the like in the using process, and therefore the bulb cannot be illuminated or indicated, and the bulb is fixedly connected to an external carrier through the mounting hole 15.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. An LED bulb comprises a base (1), a lamp shell (2) connected to the base (1) and a driving plate (3) arranged between the lamp shell (2) and the base (1), wherein a glass support (4) is arranged in the lamp shell (2), a glass core column (5) is integrally connected to the glass support (4), two lamp filaments (6) used for leading in current are arranged in the glass support (4), at least one LED lamp strip (7) is arranged beside the glass core column (5), and two ends of the LED lamp strip (7) are electrically connected with the end parts of the two lamp filaments (6) respectively; the filament lamp is characterized in that the lower end of the driving plate (3) is further electrically connected with two electric connection parts (8) used for enabling the filaments (6) to be in transitional connection, a clamping groove (10) used for limiting the filaments (6) is formed in the side wall of the driving plate (3), the two filaments (6) penetrate through the clamping groove (10) to be spirally wound on the electric connection parts (8), and the lower end of the driving plate (3) is further electrically connected with two leads (9) used for being connected with an external circuit.

2. The LED bulb as claimed in claim 1, wherein the electrical connection portion (8) is further sleeved with an insulating sleeve (16), an external thread (17) is arranged at the lower end of the electrical connection portion (8), an internal thread (18) protruding along the radial direction of the insulating sleeve (16) is arranged at the lower end of the inner side wall of the insulating sleeve (16), and a containing cavity (19) for containing the spirally wound portion of the filament (6) is reserved between the insulating sleeve (16) and the electrical connection portion (8) when the insulating sleeve (16) is spirally sleeved on the electrical connection portion (8).

3. The LED bulb according to claim 1, characterized in that the driving board (3) is a high temperature resistant PCB board.

4. The LED bulb as claimed in claim 1, wherein the upper end of the driving plate (3) is further provided with a rectifier bridge stack (11).

5. The LED bulb as claimed in claim 1, wherein the lower end of the driving plate (3) is further provided with a high temperature resistance (12).

6. The LED bulb as claimed in claim 1, wherein the base (1) is further provided with a groove (13) at the lower end thereof, two connecting pieces (14) are arranged in the groove (13), and the two connecting pieces (14) are electrically connected with the two leads (9) respectively.

7. The LED bulb as claimed in claim 1, wherein the base (1) is further provided with mounting holes (15) at both ends for connecting an external carrier.