CN217540647U

CN217540647U - Lamp holder

Info

Publication number: CN217540647U
Application number: CN202221251813.4U
Authority: CN
Inventors: 何文健; 魏一骥; 马俊; 杨晓东
Original assignee: Zhejiang Chenfeng Technology Co ltd
Current assignee: Zhejiang Chenfeng Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-10-04
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses a lamp holder, which can be integrally injection molded with a heat dissipation cup, wherein the lamp holder is provided with a pin groove, and a pin can transversely pass through the lamp holder and extend into the pin groove to form a connecting end protruding out of the lamp holder; the part of the pin groove is recessed towards the direction far away from the discrete hot cup to form a deformation groove; an external force is applied to the pin, and the part of the pin can enter the deformation groove after being deformed so as to realize the fixed assembly of the pin and the lamp holder.

Description

Lamp holder

Technical Field

The utility model belongs to the LED lamp field especially relates to a lamp holder.

Background

The LED lamp comprises a lamp cap, a lamp body, a power supply assembly, a lampshade and the like. During assembly, the components need to be joined together. The lamp holder and the lamp body are usually connected by punching pins and riveting at present, and by adopting the connection mode, certain requirements are required on the strength of the connection part of the lamp body and the lamp holder, and the lamp holder and the lamp body need to accord with the national standard value after being connected. But the connection strength is easily insufficient in the actual production process.

In view of the above problems, an integrally injection molded lamp cap and lamp body structure has been proposed. When the lamp holder and the lamp body are of a split structure in the prior art, the shell of the lamp holder is made of metal, the inner side of the lamp holder is made of plastic, the pin is made of metal, after the shell of the lamp holder is manufactured, special nailing equipment is adopted to install the pin into the shell of the lamp holder, and then a subsequent injection molding insulator is used for fixing the pin.

The lamp cap formed by integral injection molding is manufactured by injection molding inside and outside, so that a metal structure for fixing the pin in advance is not provided, and the pin cannot be directly fixed on the lamp cap in the injection molding process, thereby bringing difficulty to the installation of the pin.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a lamp holder and a mounting method thereof, which have the advantages of simplified structure, convenient installation and firm mounting structure.

The utility model provides a technical scheme that its technical problem adopted is: a lamp holder can be integrally formed with a heat dissipation cup in an injection molding mode, the lamp holder is provided with a pin groove, and a pin can transversely penetrate through the lamp holder and extend into the pin groove to form a connecting end protruding out of the lamp holder; the part of the pin groove is recessed towards the direction far away from the discrete hot cup to form a deformation groove; and external force is applied to the pin, and the part of the pin can enter the deformation groove after being deformed so as to realize the fixed assembly of the pin and the lamp holder.

The utility model discloses pin groove and deformation groove have been designed to integrative injection moulding's lamp holder and lamp body structure, and the pin groove supplies the pin to stretch into, and deformation groove provides accommodation space for the deformation of pin, and it is spacing to form the firm of pin groove and pin after the pin warp, realizes the fixed mounting of pin and lamp holder, simple structure, and the assembly methods is convenient, and the post-assembly steadiness is high.

Furthermore, a convex part which can be attached to the outer wall of the pin is formed at the joint of the pin groove and the side wall of the lamp holder. The convex part can be laminated with pin both ends outer wall, receives the exogenic action at the pin and provides the supporting role for the pin down, increases the intensity of lamp holder atress part simultaneously, avoids the lamp holder atress to take place to deform.

Furthermore, the pin groove extends along the radial direction of the lamp holder, and the deformation groove is arranged corresponding to the central part of the lamp holder. The deformation groove is positioned in the center part, so that the processing is convenient, the connection structure of each part after the pin and the lamp holder are assembled is more balanced, and the length of the connection ends of the pin protruding out of the two sides of the lamp holder is approximately equal and meets the national standard.

Further, L1 is the length of the pin groove, L2 is the length of the deformation groove, and D is the outer diameter of the pin, L2 is 2D or more and L1 is 70% or less. Deformation groove overlength then is unfavorable for control pin's deformation, and deformation groove is short then can't realize the firm connection of pin and lamp holder, and the deformation processing of pin can be guaranteed in the selection of above-mentioned numerical value, and then guarantees the assembly of pin and lamp holder.

Further, the depth of the deformation groove is 0.6-1.2mm. The diameter of pin is at 1.8-2.2mm, and the deformation groove mainly warp for the pin and provides the position of keeping away, guarantees that the pin atress takes place to deform, and the degree of depth in deformation groove should not the undersize, and the undersize hinders the pin to receive external force deformation, leads to the pin to receive the axial force pine easily to take off, should not too big yet, and the deformation undersize that avoids adding man-hour pin emergence leads to having the clearance between its and the deformation groove, is unfavorable for the firm assembly of pin and lamp holder, influences bottom plastic thickness simultaneously, leads to the intensity of lamp holder part not enough.

Furthermore, a guide fillet is formed at the junction of the deformation groove and the pin groove. The setting of direction fillet guarantees that the pin atress can be smoothly to the deformation groove place orientation crooked when taking place to deform, avoids the pin to produce simultaneously and interferes at the in-process that alternates, guarantees that the pin passes through the pin groove smoothly.

Furthermore, a positioning groove is formed on the end face of the lamp cap, and the positioning groove and the pin groove are arranged in an up-and-down corresponding mode. The setting of constant head tank plays positioning action when automatic assembly pin, the assembly of the lamp holder of being convenient for and pin, and the constant head tank is the loudspeaker form, and the convenient drawing of patterns of loudspeaker form, but material saving, reduce cost are located to the slot type constant head tank.

Furthermore, a middle boss is arranged in the positioning groove.

Furthermore, the inner ring of the heat dissipation cup is provided with a plurality of positioning ribs which are distributed at equal intervals along the circumference of the inner ring of the heat dissipation cup, and the lower end surface of each positioning rib is in a conical shape. The positioning ribs can be matched with the bulges of the lampshade, and the rapid assembly of the positioning ribs and the lampshade is realized.

The utility model has the advantages that 1) the problem that the pin is inconvenient to install after the lamp holder and the heat dissipation cup are integrally molded by injection is solved, and the process of integrally molding the lamp holder and the heat dissipation cup is simplified; 2) The bonding strength of the pin and the lamp cap is ensured; 3) The processing precision of the pin grooves and the deformation grooves is guaranteed, the manufacturing difficulty of the die is reduced, and the production efficiency and the yield are improved; 4) The strength of the pin groove is ensured, and deformation in the pin installation process is avoided; 5) The design of direction fillet is favorable to passing through smoothly of pin, avoids producing the interference to its interlude process.

Drawings

Fig. 1 is an outside perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is an inner side perspective view of the present invention.

Fig. 4 is the outside perspective view of the utility model, and the pin is omitted at this moment.

Fig. 5 is an inner side perspective view of the utility model, and the pin is omitted at this moment.

Fig. 6 is a first front view of the present invention, omitting the pin.

Fig. 7 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A in fig. 6.

Fig. 8 is a bottom view of the present invention, and the pin is omitted.

Fig. 9 is a plan view of the present invention, omitting the pin.

Fig. 10 is a second front view of the present invention, omitting the pin.

Fig. 11 is a sectional view taken along line B-B in fig. 10.

Fig. 12 is an outside perspective view of the present invention, in which the positioning groove has a middle boss.

Fig. 13 is a front view of a lampshade which can be matched with the utility model.

Fig. 14 is a perspective view of a lampshade which can be matched with the utility model.

Detailed Description

In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in fig. 1-3, a lamp cap can be integrally injection molded with a heat dissipation cup 1. As shown in fig. 4 and 5, the base 2 has a pin slot 21, and the pin 3 can extend transversely through the base 2 into the pin slot 21 and form a connection end 31 protruding from the side wall of the base 2.

The part of the pin groove 21 is sunken towards the direction far away from the heat cup 1 to form a deformation groove 22, and when external force is applied to the pin 3, the part of the pin 3 can enter the deformation groove 22 after being deformed, so that the fixed assembly of the pin 3 and the lamp cap 2 is realized.

In order to ensure that the lamp holder 2 cannot deform when the pin 3 deforms under stress, a convex part 23 is formed at the joint of the pin groove 21 and the side wall of the lamp holder 2, and the convex part 23 is attached to the outer wall of the pin 3, so that the strength of the lamp holder 2 is ensured.

The part of the lamp holder 2 corresponding to the convex part 23 is of a trumpet-shaped structure, and the trumpet-shaped structure flares towards the direction far away from the heat dissipation cup 1, so that the strength of the stressed part of the lamp holder is increased.

As shown in fig. 5, in order to ensure that the pin 3 can smoothly bend toward the direction of the deformation groove 22 when being deformed by a force, and simultaneously avoid interference generated in the inserting process of the pin 3, the pin 3 is ensured to smoothly pass through the pin groove 21, and a guide fillet 24 is formed at the boundary of the deformation groove 22 and the pin groove 21.

As shown in fig. 2 and 8, the pin grooves 21 extend in the radial direction of the base 2, and in the present embodiment, the deformed grooves 22 are provided corresponding to the center of the base 2. Specifically, when the length of the pin groove 21 is L1, the length of the deformation groove 22 is L2, and the outer diameter of the pin 3 is D, 2D ≦ L2 ≦ 70 ≦ L1, and D =1.8-2.2mm.

As shown in fig. 11, if the depth of the deformation groove 22 is 0.6 to 1.2mm.

For the pin installation automation, the end face of the base 2 is formed with a positioning groove 25, and as shown in fig. 6, 7, 9 and 10, the positioning groove 25 is vertically arranged corresponding to the pin groove 21 and has an outwardly expanding horn shape.

In other embodiments, a middle boss 251 is further disposed in the positioning slot 25, as shown in fig. 12, the middle boss 251 is connected to the end surfaces of the lamp bases 2 on both sides. The intermediate projection 251 is flush with the end face of the lamp cap 2 or slightly lower than the end face of the lamp cap 2.2 terminal surfaces of lamp holder this moment are as the feed point of moulding plastics, adopt needle valve feeding mode to solve the problem of feeding clout protrusion in 2 terminal surfaces of lamp holder simultaneously.

As shown in fig. 5 and 11, the inner ring of the heat dissipation cup 1 is provided with a plurality of positioning ribs 11, the plurality of positioning ribs 11 are distributed at equal intervals along the circumference of the inner ring, and the lower end surfaces 111 of the positioning ribs 11 are tapered. As shown in fig. 13 and 14, the outer ring of the interface of the lampshade 4 is provided with a plurality of protrusions 41, the protrusions 41 are provided with guide angles 411, and the distance between adjacent protrusions 41 is matched with the width of the positioning rib 11, so that the positioning rib 11 can be randomly inserted between any two protrusions 41, the lampshade 4 and the heat dissipation cup 1 do not need to be specially aligned when being assembled, automatic assembly is realized, the heat dissipation cup 1 and the lampshade 4 cannot rotate left and right after being buckled, full-automatic and rapid assembly of the lampshade 4 and the heat dissipation cup 1 is realized, and a glue-free processing technology can also be realized. Furthermore, a step surface 42 is formed on the lamp housing 4, and the positioning rib 11 can abut against the step surface 42 to avoid over-assembly.

A method of mounting a lamp cap, comprising the steps of:

the pin 3 is transversely inserted into the pin groove 21, and two ends of the pin protrude out of the side wall of the lamp holder 2;

external force is applied to the pin 3 in the heat dissipation cup 1 for punching, so that the pin 3 corresponding to the deformation groove 22 is deformed and enters the deformation groove 22, and the pin 3 and the lamp holder 2 are fixedly assembled;

the ends of the pin 3 remaining outside the base are connected to the base as connection ends 31.

The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.

Claims

1. The utility model provides a lamp holder, can with heat dissipation cup (1) integrative injection moulding, its characterized in that: the lamp holder (2) is provided with a pin groove (21), and the pin (3) can transversely penetrate through the lamp holder (2) to extend into the pin groove (21) and form a connecting end (31) protruding out of the lamp holder (2); the part of the pin slot (21) is recessed to the direction far away from the discrete hot cup (1) to form a deformation slot (22); an external force is applied to the pin (3), and part of the pin (3) can enter the deformation groove (22) after being deformed, so that the pin (3) and the lamp holder (2) are fixedly assembled.

2. The lamp cap of claim 1, wherein: and a convex part (23) which can be attached to the outer wall of the pin (3) is formed at the joint of the pin groove (21) and the side wall of the lamp holder (2).

3. The lamp cap of claim 1, wherein: the pin grooves (21) extend along the radial direction of the lamp holder (2), and the deformation grooves (22) are arranged corresponding to the central part of the lamp holder (2).

4. The lamp cap of claim 2, wherein: l1 is the length of the pin groove (21), L2 is the length of the deformation groove (22), and D is the outer diameter of the pin (3), L2D is less than or equal to L2 and less than or equal to 70 percent L1.

5. The lamp cap of claim 4, wherein: the depth of the deformation groove (22) is 0.6-1.2mm.

6. The lamp cap of claim 1, wherein: and a guide fillet (24) is formed at the junction of the deformation groove (22) and the pin groove (21).

7. The lamp cap of claim 1, wherein: and a positioning groove (25) is formed in the end face of the lamp holder (2), and the positioning groove (25) and the pin groove (21) are arranged in a vertically corresponding mode.

8. The lamp cap of claim 7, wherein: a middle boss (251) is arranged in the positioning groove (25).

9. The lamp cap of claim 1, wherein: the inner ring of the heat dissipation cup (1) is provided with a plurality of positioning ribs (11), the positioning ribs (11) are distributed at equal intervals along the circumference of the inner ring of the heat dissipation cup (1), and the lower end face (111) of each positioning rib (11) is in a conical shape.