CN202938272U

CN202938272U - Light-emitting diode (LED) daylight lamp radiating tube head

Info

Publication number: CN202938272U
Application number: CN201220648062XU
Authority: CN
Inventors: 温泉; 严泽英; 王建平
Original assignee: SICHUAN TIANYUANDIFANG ENERGY TECHNOLOGY Co Ltd
Current assignee: SICHUAN TIANYUANDIFANG ENERGY TECHNOLOGY Co Ltd
Priority date: 2012-11-30
Filing date: 2012-11-30
Publication date: 2013-05-15
Anticipated expiration: 2022-11-30

Abstract

The utility model discloses a light-emitting diode (LED) daylight lamp radiating tube head which is mainly composed of a tube body and a tube cover, wherein a separating plate is arranged in the tube body and the tube cover is assembled in the tube body. A clamp groove used for inserting and installing a printed circuit board (PCB) is formed in the inner wall of a tube cavity, and a wire penetrating hole is formed in a wall body of the separating plate. An 'open' type tube head structure is formed by a set of ventilating and heat dissipating grooves on the wall of the tube cavity, and the ventilating and heat dissipating grooves can conduct air leakage ventilation and heat convection with external, the tube head structure is made of polyvinyl chloride materials and is casted in a mold pressing mode, the tube head structure is particularly suitable for being used by being assembled on LED daylight lamps, heat generated by power devices can be released timely from the tube head, and the head tube structure has obvious effects in overheating prevention of the head tube, appliance working performance stabilization, and product quality improvement of the LED daylight lamps. The LED daylight lamp radiating tube head has the advantages of being simple and direct in structure, low in manufacturing cost, good in ventilating and heat dissipating effect, safe and reliable in operation, and wide in prospect of popularization and usage in LED daylight lamp manufacturing industry.

Description

LED fluorescent lamp heat radiation tube head

Technical field

The utility model relates to the fluorescent lamp parts, and it belongs to the production technical field of dynamo-electric lighting class, specifically a kind of LED fluorescent lamp heat radiation tube head.

Background technology

We know: the LED fluorescent lamp is a kind of light emitting diode (Light Emitting Diode that utilizes, letter is for claiming LED) as the illuminating lamp of light-emitting component, it mainly is comprised of fluorescent tube two parts of Switching Power Supply and equipped LED lamp bar, and wherein fluorescent tube is to be made of aluminium alloy semi-circular tube, plastics semi-circular tube light shield.The effect of Switching Power Supply is to provide stable constant-current supply with the direct current that the 220V/50Hz alternating current is transformed into 12V for the light emitting diode on LED lamp bar; The heat that light emitting diode on LED lamp bar produces when working can be taken away by the aluminium alloy semi-circular tube lost.The core of light emitting diode is in fact a wafer that is comprised of P-type semiconductor, N-type semiconductor, and its end is to be attached to the LED lamp pearl of support as negative pole, and the other end is connected in the positive pole of power supply.Its luminous operation principle is: when constant-current supply acts on wafer by wire, electrons be pushed to the P district and with the P district in " hole " compound, then send energy with the form of photon.From its above-mentioned luminescence mechanism, it can efficiently directly be converted to luminous energy with electric energy and can not cause the waste of the energy.Show through using: the LED fluorescent lamp has the remarkable characteristic that the energy saving luminous efficiency is high, the soft lighting quality of light is good, nontoxic environmental protection effect is good and service life is long especially, Just because of this, the LED fluorescent lamp has been acknowledged as the green illumination product of 21st century, and this is a LED fluorescent lamp main cause place being subjected to deeply on current light fixture market that the user favors just also.Understand according to market: existing LED fluorescent lamp is mostly to adopt on-chip power formula structure, it is that the Switching Power Supply pcb board directly is held in the tube head of fluorescent tube after the heat-shrinkable T bush suit, can normally use as long as it is directly inserted existing lamp socket, need not to arrange separately again outside fluorescent tube circuit is installed.To be objective, although the LED fluorescent lamp product of this on-chip power formula has advantages of that compact conformation is succinct, good looking appearance is generous, it is easy to operate to install and use.but need not to dare not or would not speak up, we also find in the long-term R ﹠ D production process: still there are some technical pattern defectives in actual use in existing on-chip power formula LED fluorescent lamp, its main manifestations is: because its Switching Power Supply pcb board is to be disposed in the tube head of fluorescent tube, and existing tube head is a full-closed structure that supplies the supporting fluorescent tube, in switching power circuit, some power device can produce heat when the LED fluorescent lamp is worked, this heat that is produced in the course of the work by power device will be in the tube head of sealing long-term accumulated and can't discharging, this is to cause a serious main cause of existing LED fluorescent lamp tube head heating.Can affect the service behaviour of power circuit and then cause that the working stability performance of LED fluorescent lamp descends to some extent when temperature rise is too high, also can be because of overheated and cause the damage accidents of electric elements when serious.How could eliminate the overheated potential safety hazard that existing LED fluorescent lamp tube head exists and then the security performance of guaranteeing the work of LED fluorescent lamp, this is an existing LED fluorescent lamp production industry technical problem in the urgent need to address, and this is also that the utility model is wanted the problem that solves.

The utility model content

The purpose of this utility model is intended to overcome prior art above shortcomings part, proposes a kind of LED fluorescent lamp heat radiation tube head of new structure.The heat that it can produce power device effectively in the course of the work in time discharges in tube head, and this has positive effect to the service behaviour of eliminating the overheated potential safety hazard of tube head, raising LED fluorescent lamp long-term stability.

The purpose of this utility model is achieved by the following technical solution:

The LED fluorescent lamp heat radiation tube head that the utility model proposes, it comprises body and Guan Gai, and dividing plate is set in body, is provided with through wires hole on the dividing plate wall body, the pipe end that described pipe lid is fitted to body forms tube chamber, it is characterized in that: one group of ventilation and heat groove is set on the tube chamber wall body of body.Its significant design feature is: the tube head that it has thoroughly changed existing fluorescent lamp becomes the traditional structure of " closed tube fully ", initiated arrange on the tube chamber wall body one group of ventilation and heat groove form can with " open " tube head structure of the blank ventilation in the external world, heat convection, the heat that it can produce power device in the course of the work discharges in tube head in time fully, can effectively prevent from causing because tube head is overheated the accident that reduces power circuit working stability performance, this has the good effect of highly significant to the stability that improves the work of LED fluorescent lamp.

Further say, the utility model also has following technical characterictic:

Be provided with card pipe tongue piece in the outer face of dividing plate.This structural design is convenient to be made of transparent semicircle plastics light shield, aluminium alloy semicircle heat-dissipating casing and lamp bar substrate the actual assembled operation of fluorescent tube especially.

Described ventilation and heat groove is longitudinally to be arranged on the tube chamber wall body of body.This structural design can effectively strengthen the heat dissipation ventilation effect, is particularly conducive to again the manufacture craft of ventilation and heat groove.

The quantity of described one group of ventilation and heat groove is 6 to 12, and one group of ventilation and heat groove is to be arranged on the tube chamber wall body of body by equal mode for cloth.The heat that adopts this distribution equalizing structure design in time power device to be produced discharges in tube head, and good heat dissipation ventilation effect is arranged in actual use.

The quantity of described one group of ventilation and heat groove is 8, arranges 2 at the tube chamber lower wall of body, respectively arranges 3 at tube chamber left side wall, the right side wall of body.Adopt this specific cloth groove structure that good heat dissipation ventilation effect is in use also arranged.

Be vertically arranged with the draw-in groove of fixed power source pcb board at the lumen wall of body.Can fixedly be plugged in the power supply pcb board with power device in draw-in groove easily, make the power supply pcb board be in stationary state in the tube chamber of tube head and the phenomenon of collision can not occur to rock arbitrarily, the two ends of power supply pcb board are not contacted with the tube wall of tube head be blank state, be particularly conducive to intraluminal Air Flow, this also has certain effect to the result of ventilating heat dissipation that improves tube head, and do not re-use heat-shrinkable T bush packing power supply pcb board, this also has certain effect to reducing manufacturing cost.

Described draw-in groove is second cavity wall of tube chamber that is arranged at body.The design of this positional structure can make the tube chamber centre position that is fitted to the power supply pcb board tube head that the power device on the power supply pcb board is positioned at, and this also has certain effect to further raising tube head result of ventilating heat dissipation.

The utility model is compared with prior art has following substantive features and progress:

The utility model has been initiated a kind of tube head of " open " structure for the LED fluorescent lamp, it is that one group of ventilation and heat groove structure with extraneous blank ventilation, heat convection longitudinally is set on the tube chamber wall body of tube head, and longitudinally be provided for the draw-in groove of fixed power source pcb board at lumen wall, the heat that the power device on the power supply pcb board can be produced in the course of the work discharges in tube head in time, and splendid radiating effect is arranged.The utlity model has novel structure simple and direct, produce easily, low cost of manufacture, outstanding advantages that result of ventilating heat dissipation is good, safe and reliable to operation, be particularly suitable for equipped use the on existing LED fluorescent lamp, to preventing that tube head is overheated, stablize the electrical equipment service behaviour and guarantee that the operation of LED safe fluorescent-lamp has very significantly effect.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the A-A view of Fig. 1, and the lower tube half cavity wall that is illustrated in body arranges the notch schematic diagram of fixed power source plate PCB.

Fig. 3 is the B-B view of Fig. 1, is illustrated in the structural representation that through wires hole, card pipe tongue piece are set on the dividing plate of body.

Description of symbols in accompanying drawing:

1 is body, and 2 is tube chamber, and 3 is the ventilation and heat groove, and 4 is dividing plate, and 5 is fluorescent tube, and 6 are card pipe tongue piece, and 7 is through wires hole, and 8 is limiting block, and 9 is draw-in groove, and 10 is buckle, and 11 are the pipe lid, and 12 for decorating pipe cap, and 13 is pin, and 14 is the power supply pcb board.

The specific embodiment

Further describe embodiment of the present utility model below in conjunction with accompanying drawing:

a kind of LED fluorescent lamp heat radiation tube head that the utility model proposes, it is mainly by body 1, the pipe lid 11 that pin one 3 is installed consists of, inwall at body 1 one ends is provided with dividing plate 4, being provided with in the outer face of dividing plate 4 can be for the card pipe tongue piece 6 that fluorescent tube 5 is installed, be provided with through wires hole 7 on the wall body of dividing plate 4, the other end that described pipe lid 11 fixedly is fitted to body 1 forms tube chamber 2, longitudinally be symmetrical arranged two at second cavity wall of tube chamber 2 and be used for the fixedly draw-in groove 9 of plug-in mounting power supply pcb board 14, and in the inner of draw-in groove 9, limiting block 8 is set, in the outer end of draw-in groove 9, buckle 10 is set, can limit the plug-in mounting position of power supply pcb board 14 in draw-in groove 9, can make the two ends of power supply pcb board 14 not contact with tube wall and present blank state, this structural design is particularly conducive to the Air Flow in tube chamber 2, this has certain effect to the further result of ventilating heat dissipation that improves, on tube chamber 2 wall bodies of body 1, one group of ventilation and heat groove 3 is set longitudinally, the quantity of described one group of ventilation and heat groove 3 is 8, tube chamber 2 lower walls at body 1 arrange 2, tube chamber 2 left side walls at body 1, right side wall respectively arranges 3.In actual production, it is to adopt polyvinyl chloride (PVC) material to make through mold pressing disposable integral casting.it is to be equipped with as follows to use: at first power supply pcb board 14 is plugged in the draw-in groove 9 that tube chamber 2 inwalls of body 1 arrange and by limiting block 8, buckle 10 is located, after being connected in the wire casing of wire through tube chamber 2 inwalls of power supply pcb board 14 1 ends, the through wires hole 7 that arranges from dividing plate 4 is again drawn the lamp bar substrate for connecting tube 5, the wire that is connected in power supply pcb board 14 other ends is connected in pin one 3, to manage again and cover 11, decorating pipe cap 12 is fitted to successively the pipe end of body 1 and is connected and fixed with screw, so far namely complete the equipped operation of heat radiation tube head.At last, more above-mentioned heat radiation tube head fixedly is fitted to fluorescent tube 5 pipe ends, namely can be made into LED fluorescent lamp with heat sinking function for.The heat that it can produce power device in time distributes in the tube head and discharges, and all has very significantly and acts on preventing that tube head is overheated, stablize the electrical equipment service behaviour and improve LED fluorescent lamp job stability.

Claims

1. LED fluorescent lamp heat radiation tube head, it comprises body (1) and pipe lid (11), dividing plate (4) is set in body (1), be provided with through wires hole (7) on dividing plate (4) wall body, the pipe end that described pipe lid (11) is fitted to body (1) forms tube chamber (2), it is characterized in that: on tube chamber (2) wall body of body (1), one group of ventilation and heat groove (3) is set.

2. LED fluorescent lamp heat radiation tube head according to claim 1, is characterized in that: be provided with card pipe tongue piece (6) in the outer face of dividing plate (4).

3. LED fluorescent lamp heat radiation tube head according to claim 1 and 2, it is characterized in that: described ventilation and heat groove (3) is on tube chamber (2) wall body that longitudinally is arranged at body (1).

4. LED fluorescent lamp heat radiation tube head according to claim 1 and 2, it is characterized in that: the quantity of described one group of ventilation and heat groove (3) is 6 to 12, and one group of ventilation and heat groove (3) is to be arranged on tube chamber (2) wall body of body (1) by equal mode for cloth.

5. LED fluorescent lamp heat radiation tube head according to claim 1 and 2, it is characterized in that: the quantity of described one group of ventilation and heat groove (3) is 8, tube chamber (2) lower wall in body (1) arranges 2, and tube chamber (2) left side wall, right side wall in body (1) respectively arrange 3.

6. LED fluorescent lamp heat radiation tube head according to claim 1 and 2, is characterized in that: the draw-in groove (9) that is vertically arranged with fixed power source pcb board (14) at tube chamber (2) inwall of body (1).

7. LED fluorescent lamp heat radiation tube head according to claim 6, it is characterized in that: described draw-in groove (9) is second cavity wall of tube chamber (2) that is arranged at body (1).