CN218972438U

CN218972438U - LED fluorescent lamp and lamp housing and lamp cap thereof

Info

Publication number: CN218972438U
Application number: CN202320077874.1U
Authority: CN
Inventors: 韩荣
Original assignee: Chengdu Haojing Energy Conservation Technology Co ltd
Current assignee: Chengdu Haojing Energy Conservation Technology Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-05-05
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to an LED fluorescent lamp and a lamp housing and a lamp cap thereof, wherein the LED fluorescent lamp housing comprises an aluminum radiating cover, a PC lamp cover and two lamp caps; the lamp cap comprises a cylinder body and a bottom plate; the inner side wall of the barrel is provided with a first abutting step, a second abutting step, a plurality of first elastic pressing sheets and a plurality of second elastic pressing sheets, a first positioning cavity is arranged between the first elastic pressing sheets and the barrel, and the end part of the PC lampshade is inserted into the first positioning cavity and is pressed by the first elastic pressing sheets; a second positioning cavity is arranged between the second elastic pressing sheet and the inner wall of the cylinder body, the width of the second positioning cavity is smaller than the thickness of the aluminum radiating cover, and the end part of the aluminum radiating cover is inserted into the second positioning cavity and is pressed by the second elastic pressing sheet. The first step that supports is utilized to support the terminal surface of PC lamp shade to utilize first elasticity preforming to compress tightly the PC lamp shade to the barrel lateral wall, utilize the second to support the step and support the terminal surface of aluminium heat dissipation cover, and utilize the second elasticity preforming to compress tightly the aluminium heat dissipation cover to the barrel lateral wall, thereby make PC lamp shade and aluminium heat dissipation cover more stable, firm.

Description

LED fluorescent lamp and lamp housing and lamp cap thereof

Technical Field

The utility model belongs to the field of fluorescent lamps, and particularly relates to an LED fluorescent lamp, a lamp housing and a lamp cap thereof.

Background

LED fluorescent lamps are common lighting fixtures that can be used in a variety of locations. The conventional fluorescent lamp housing of the LED generally comprises a lamp cover, a heat dissipation cover and lamp caps at two ends, wherein a lamp strip and a PCB (printed circuit board) are arranged in the heat dissipation cover, such as CN205897057U and the like.

In addition, CN202203736U discloses a fluorescent lamp, which comprises a lampshade, a heat dissipation cover and two end covers, wherein the lampshade and the heat dissipation cover are engaged to form an accommodating space for accommodating the light source assembly; the light source assembly comprises a fluorescent tube connected with the light source assembly and a constant current power supply for converting high-voltage electricity into low-voltage electricity, and two ends of the fluorescent tube are spliced on the lamp holder; the end cover is made of PC material, and the surface of the end cover is provided with a power line socket and a vent hole; the heat dissipation cover is made of aluminum, and heat dissipation fins are uniformly distributed on the heat dissipation cover. The utility model reduces the occupied volume by the integrated design of the lamp body, and improves the reliability during lighting and the service life of the lamp tube by the arrangement of the constant current power supply. The lampshade is made of transparent PC material, so that the lampshade has the advantage of good light transmission performance. The heat dissipation effect is ensured by arranging the heat dissipation fins on the heat dissipation cover.

In order to facilitate the disassembly and assembly of the fluorescent lamp, lamp caps at two ends of the lamp shade and the heat dissipation cover are generally clamped with the lamp shade and the heat dissipation cover, but the clamping connection strength is lower, and the stability is poor.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an LED fluorescent lamp, a lamp housing and a lamp cap thereof, and the mounting stability of the lamp cap is improved.

In order to solve the problems, the utility model adopts the following technical scheme: the LED fluorescent lamp cap comprises a barrel body and a bottom plate, wherein a contact pin is arranged on the bottom plate;

the inner side wall of the cylinder is provided with a first abutting step and a second abutting step, a plurality of first elastic pressing sheets are arranged in the cylinder, and a first positioning cavity is formed between the first elastic pressing sheets and the inner wall of the cylinder;

a plurality of second elastic pressing sheets are arranged in the cylinder body, and a second positioning cavity is arranged between the second elastic pressing sheets and the inner wall of the cylinder body.

Further, the cylinder, the bottom plate, the first abutting step, the second abutting step, the first elastic pressing piece and the second elastic pressing piece are integrally formed by polycarbonate.

Further, the contact pin is a hollow aluminum pin.

Further, a copper plate is arranged on the inner side of the bottom plate, one end of the contact pin is connected with the copper plate, and the other end of the contact pin penetrates through the bottom plate.

Further, the second elastic pressing piece is partially arranged on the second abutting step and partially arranged on the bottom plate.

Further, be provided with the window on the barrel, be provided with the elastic block in the window, the one end that the bottom plate was kept away from to the elastic block links to each other with the barrel, and the medial surface of elastic block is the inclined plane, and the thickness of elastic block increases gradually in the direction towards the bottom plate.

The LED fluorescent lamp shell comprises an aluminum radiating cover, a PC lamp cover and two lamp caps;

the inner wall of the aluminum radiating cover is provided with a lamp strip clamping groove which axially penetrates through the aluminum radiating cover, the outer wall of the aluminum radiating cover is provided with a lamp cover clamping groove which axially penetrates through the aluminum radiating cover, the inner side wall of the PC lamp cover is provided with an axial clamping convex plate, and the clamping convex plate is positioned in the lamp cover clamping groove and is in sliding fit with the lamp cover clamping groove;

the lamp cap comprises a barrel body and a bottom plate, and a contact pin is arranged on the bottom plate;

the inner side wall of the barrel is provided with a first abutting step and a second abutting step, a plurality of first elastic pressing sheets are arranged in the barrel, a first positioning cavity is formed between the first elastic pressing sheets and the inner wall of the barrel, the width of the first positioning cavity is smaller than the thickness of the PC lampshade, and the end part of the PC lampshade is inserted into the first positioning cavity and is pressed by the first elastic pressing sheets;

the aluminum radiating cover is characterized in that a plurality of second elastic pressing sheets are arranged in the cylinder body, a second positioning cavity is formed between the second elastic pressing sheets and the inner wall of the cylinder body, the width of the second positioning cavity is smaller than the thickness of the aluminum radiating cover, and the end parts of the aluminum radiating cover are inserted into the second positioning cavity and are pressed by the second elastic pressing sheets.

Further, a plurality of radiating grooves are formed in the outer wall of the aluminum radiating cover.

Further, a window is arranged on the cylinder, an elastic block is arranged in the window, one end of the elastic block, which is far away from the bottom plate, is connected with the cylinder, the inner side surface of the elastic block is an inclined surface, and the thickness of the elastic block is gradually increased in the direction towards the bottom plate; the lateral wall of aluminium heat dissipation cover is provided with the location through-hole, the location through-hole is gone into to the elastic block card.

The LED fluorescent lamp comprises the fluorescent lamp shell.

The beneficial effects of the utility model are as follows: through setting up first step, second step, a plurality of first elastic preforming and a plurality of second elastic preforming of supporting in the lamp holder inside, utilize first step to support the terminal surface of leaning on the PC lamp shade to utilize first elastic preforming to compress tightly the PC lamp shade to the barrel lateral wall, utilize the second to support the terminal surface of leaning on the aluminium heat dissipation cover, and utilize the second elastic preforming to compress tightly the aluminium heat dissipation cover to the barrel lateral wall, thereby make PC lamp shade and aluminium heat dissipation cover more stable, firm. During assembly, only the PC lamp shade is required to be inserted into the first positioning cavity, and the aluminum radiating cover is required to be inserted into the second positioning cavity, so that the assembly is very convenient.

Drawings

FIG. 1 is a schematic overall cross-sectional view of a lamp envelope of the present utility model;

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

FIG. 4 is a schematic cross-sectional view of C-C of FIG. 3;

FIG. 5 is a schematic side view of a lamp head;

reference numerals: 1-an aluminum heat radiation cover; 11-a lamp strip clamping groove; 12-positioning through holes; 2-PC lamp shade; 21-clamping convex plates; 3-lamp cap; 31-a cylinder; 32-a bottom plate; 33-pins; 34—a first abutment step; 35-a second abutment step; 36-a first elastic pressing sheet; 37-a second elastic pressing sheet; 38-copper plate; 39-elastic block.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

The LED fluorescent lamp shell disclosed by the utility model, as shown in figures 1 to 5, comprises an aluminum radiating cover 1, a PC (personal computer) lamp cover 2 and two lamp caps 3. The aluminum radiating cover 1 is used for protecting the lamp strip inside, has good heat conducting performance, is favorable for radiating, and has high strength and light weight. The PC lamp shade 2 is formed by polycarbonate integrally, has small thickness, light weight, easy carrying and installation, good flame retardance, insulation and better leakage safety prevention.

As shown in fig. 2, the inner wall of the aluminum heat dissipation cover 1 is provided with a lamp strip clamping groove 11 which axially penetrates through the aluminum heat dissipation cover 1, the lamp strip clamping groove 11 is used for installing a lamp strip, the lamp strip is in sliding fit with the lamp strip clamping groove 11, and when the lamp strip is installed, the lamp strip is directly inserted into the lamp strip clamping groove 11 from one end of the lamp strip clamping groove 11. The heat generated after the lamp strip is electrified is transferred to the aluminum radiating cover 1, and then is transferred to the outside air by the aluminum radiating cover 1. In order to improve the heat radiation effect, the outer wall of the aluminum heat radiation cover 1 is provided with a plurality of small-sized heat radiation grooves.

The outer wall of the aluminum radiating cover 1 is provided with a lamp cover clamping groove which axially penetrates through the aluminum radiating cover 1, the inner side wall of the PC lamp cover 2 is provided with an axial clamping convex plate 21, and the clamping convex plate 21 is positioned in the lamp cover clamping groove and is in sliding fit with the lamp cover clamping groove. The clamping convex plate 21 and the PC lamp shade 2 are integrally formed, and the clamping convex plate 21 of the PC lamp shade 2 is inserted into the lamp shade clamping groove during assembly. The sections of the aluminum radiating cover 1 and the PC lampshade 2 are approximately semicircular, and the assembled lamp tube is similar to a circle.

The lamp cap 3 includes a cylinder 31 and a bottom plate 32, and pins 33 are provided on the bottom plate 32. The shape of the lamp tube assembled by the aluminum radiating cover 1 and the PC lamp cover 2 is matched with the shape of the cylinder 31, so that the lamp tube can be inserted into the cylinder 31.

The inside wall of barrel 31 is provided with first step 34 and the second step 35 of supporting against, is provided with a plurality of first elastic pressing piece 36 in the barrel 31, has first location chamber between the inner wall of first elastic pressing piece 36 and barrel 31, and the width in first location chamber is less than the thickness of PC lamp shade 2, and the tip of PC lamp shade 2 inserts first location chamber and compresses tightly by first elastic pressing piece 36.

A plurality of second elastic pressing sheets 37 are arranged in the cylinder 31, a second positioning cavity is formed between the second elastic pressing sheets 37 and the inner wall of the cylinder 31, the width of the second positioning cavity is smaller than the thickness of the aluminum radiating cover 1, and the end part of the aluminum radiating cover 1 is inserted into the second positioning cavity and is pressed by the second elastic pressing sheets 37.

The first abutting step 34 and the second abutting step 35 are respectively used for abutting against the end faces of the PC lamp shade 2 and the aluminum radiating cover 1, and play a role in axial limiting. The first elastic pressing piece 36 and the second elastic pressing piece 37 are made of elastic materials, and can compress the PC lamp shade 2 and the aluminum radiating cover 1 under the elastic action of the first elastic pressing piece and the second elastic pressing piece. During assembly, the end of the PC lamp shade 2 is inserted into the first positioning cavity, the PC lamp shade 2 presses the first elastic pressing sheet 36 to deform the first elastic pressing sheet 36, and the elastic force generated by deformation can press the end of the PC lamp shade 2 to the inner side wall of the cylinder 31. Meanwhile, the end of the aluminum radiating cover 1 is inserted into the second positioning cavity, the aluminum radiating cover 1 extrudes the second elastic pressing piece 37 to enable the second elastic pressing piece 37 to deform, and the elastic force generated by deformation can compress the end of the aluminum radiating cover 1 to the inner side wall of the cylinder 31. The assembly is convenient, and after assembly, the lamp cap 3 can be stably connected with the PC lampshade 2 and the aluminum radiating cover 1, so that the lamp cap 3 is prevented from falling off.

The cylinder 31, the bottom plate 32, the first abutment step 34, the second abutment step 35, the first elastic pressing piece 36 and the second elastic pressing piece 37 are integrally molded from Polycarbonate (PC). The polycarbonate has better mechanical property, strength meeting the requirement, insulation, flame retardance and higher safety.

The pins 33 may be copper pins or the like, or may be hollow aluminum pins. The copper plate 38 is provided on the inner side of the base plate 32, and one end of the pin 33 is connected to the copper plate 38, and the other end penetrates the base plate 32.

The number of the first elastic pressing pieces 36 and the second elastic pressing pieces 37 may be 2, three, etc., the first elastic pressing pieces 36 may be all disposed on the first abutment step 34, the second elastic pressing pieces 37 may be all disposed on the second abutment step 35, and preferably, the second elastic pressing pieces 37 are partially disposed on the second abutment step 35 and partially disposed on the bottom plate 32. As shown in fig. 5, the first abutting step 34 and the second abutting step 35 are both crescent-shaped, the middle parts of the end faces of the aluminum radiating cover 1 and the PC lampshade 2 are in contact with the abutting step, and the two side edges of the end faces are located outside the abutting step, so that the PC lampshade 2 can be fastened by only 2 or 3 first elastic pressing pieces 36 arranged on the first abutting step 34, while the weight of the aluminum radiating cover 1 is slightly larger, in order to better fasten the aluminum radiating cover 1, two second elastic pressing pieces 37 are arranged on the second abutting step 35, meanwhile, two second elastic pressing pieces 37 are arranged on the bottom plate 32, the second elastic pressing pieces 37 on the bottom plate 32 are located at the side edges of the aluminum radiating cover 1, the length is also larger, and the four second elastic pressing pieces 37 simultaneously fasten the aluminum radiating cover 1, so that the fastening effect is better.

In order to further improve the connection stability between the lamp cap 3 and the aluminum radiating cover 1, a window is arranged on the cylinder 31, the window is a rectangular window, an elastic block 39 is arranged in the window, the elastic block 39 is a rectangular block, one end of the elastic block 39, which is far away from the bottom plate 32, is connected with the cylinder 31, the rest three sides of the elastic block 39 are spaced from the side wall of the window, the inner side surface of the elastic block 39 is an inclined surface, and the thickness of the elastic block 39 gradually increases in the direction towards the bottom plate 32; the side wall of the aluminum radiating cover 1 is provided with a positioning through hole 12, and an elastic block 39 is clamped into the positioning through hole 12. In the process of inserting the aluminum radiating cover 1 into the cylinder 31, when the end part of the aluminum radiating cover 1 reaches the elastic block 39, the elastic block 39 is extruded, so that the elastic block 39 is deformed to bend outwards of the window, the aluminum radiating cover 1 is continuously inserted, and when the positioning through hole 12 reaches the elastic block 39, the extrusion force born by the elastic block 39 disappears to reset, so that the inner side of the elastic block 39 is clamped into the positioning through hole 12. The lamp cap 3 is not separated from the aluminum radiating cover 1 by the elastic block 39. By controlling the axial position of the positioning through hole 12 on the aluminum radiating cover 1, the inner side of the elastic block 39 is clamped into the positioning through hole 12 when the end part of the aluminum radiating cover 1 reaches the second abutting step 35.

The bottom plate 32 is provided with a plurality of heat dissipation holes, which serve as auxiliary heat dissipation.

The LED fluorescent lamp comprises the lamp shell shown in fig. 1 to 4, a lamp strip can be arranged in the lamp shell, and various electric elements such as a constant current power supply, a PCB (printed Circuit Board) capable of realizing automatic induction and the like can be arranged in the lamp shell according to actual use situations, so that the LED fluorescent lamp has various functions.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

The LED fluorescent lamp cap comprises a barrel body (31) and a bottom plate (32), wherein a contact pin (33) is arranged on the bottom plate (32); the method is characterized in that:

the inner side wall of the cylinder body (31) is provided with a first propping step (34) and a second propping step (35), a plurality of first elastic pressing sheets (36) are arranged in the cylinder body (31), and a first positioning cavity is formed between the first elastic pressing sheets (36) and the inner wall of the cylinder body (31);

a plurality of second elastic pressing sheets (37) are arranged in the cylinder body (31), and a second positioning cavity is formed between the second elastic pressing sheets (37) and the inner wall of the cylinder body (31).
2. The LED fluorescent lamp head of claim 1, wherein: the barrel (31), the bottom plate (32), the first abutting step (34), the second abutting step (35), the first elastic pressing piece (36) and the second elastic pressing piece (37) are integrally formed by polycarbonate.
3. The LED fluorescent lamp head of claim 1, wherein: the contact pin (33) is a hollow aluminum pin.
4. The LED fluorescent lamp head of claim 3, wherein: the inner side of the bottom plate (32) is provided with a copper plate (38), one end of the pin (33) is connected with the copper plate (38), and the other end of the pin penetrates through the bottom plate (32).
5. The LED fluorescent lamp head of claim 1, wherein: the second elastic pressing piece (37) is partially arranged on the second abutting step (35) and partially arranged on the bottom plate (32).
6. The LED fluorescent lamp head of claim 1, wherein: the barrel (31) is provided with a window, an elastic block (39) is arranged in the window, one end, far away from the bottom plate (32), of the elastic block (39) is connected with the barrel (31), the inner side surface of the elastic block (39) is an inclined surface, and the thickness of the elastic block (39) is gradually increased in the direction towards the bottom plate (32).
The LED fluorescent lamp shell comprises an aluminum radiating cover (1), a PC lampshade (2) and two lamp caps (3);

the LED lamp comprises an LED lamp body, and is characterized in that a lamp strip clamping groove (11) axially penetrating through the LED lamp body (1) is formed in the inner wall of the LED lamp body (1), a lamp cover clamping groove axially penetrating through the LED lamp body (1) is formed in the outer wall of the LED lamp body (1), an axial clamping convex plate (21) is arranged on the inner side wall of the PC lamp cover (2), and the clamping convex plate (21) is located in the lamp cover clamping groove and is in sliding fit with the lamp cover clamping groove;

the lamp cap (3) comprises a cylinder body (31) and a bottom plate (32), and a contact pin (33) is arranged on the bottom plate (32); the method is characterized in that:

the inner side wall of the barrel (31) is provided with a first abutting step (34) and a second abutting step (35), a plurality of first elastic pressing sheets (36) are arranged in the barrel (31), a first positioning cavity is formed between the first elastic pressing sheets (36) and the inner wall of the barrel (31), the width of the first positioning cavity is smaller than the thickness of the PC lampshade (2), and the end part of the PC lampshade (2) is inserted into the first positioning cavity and is pressed by the first elastic pressing sheets (36);

a plurality of second elastic pressing pieces (37) are arranged in the cylinder body (31), a second positioning cavity is formed between the second elastic pressing pieces (37) and the inner wall of the cylinder body (31), the width of the second positioning cavity is smaller than the thickness of the aluminum radiating cover (1), and the end part of the aluminum radiating cover (1) is inserted into the second positioning cavity and is pressed by the second elastic pressing pieces (37).
8. The LED fluorescent lamp housing of claim 7, wherein: the outer wall of the aluminum radiating cover (1) is provided with a plurality of radiating grooves.
9. The LED fluorescent lamp housing of claim 7, wherein: the barrel (31) is provided with a window, an elastic block (39) is arranged in the window, one end of the elastic block (39) far away from the bottom plate (32) is connected with the barrel (31), the inner side surface of the elastic block (39) is an inclined surface, and the thickness of the elastic block (39) is gradually increased in the direction towards the bottom plate (32); the side wall of the aluminum radiating cover (1) is provided with a positioning through hole (12), and the elastic block (39) is clamped into the positioning through hole (12).
An led fluorescent lamp, characterized in that: comprising an LED fluorescent lamp housing according to claim 7, 8 or 9.