CN113719767A - Driving end contact pin lamp tube with heat insulation function and assembling process thereof - Google Patents
Driving end contact pin lamp tube with heat insulation function and assembling process thereof Download PDFInfo
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- CN113719767A CN113719767A CN202111034027.9A CN202111034027A CN113719767A CN 113719767 A CN113719767 A CN 113719767A CN 202111034027 A CN202111034027 A CN 202111034027A CN 113719767 A CN113719767 A CN 113719767A
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- clamping
- circuit board
- flexible circuit
- pin
- heat insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
- F21K9/272—Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
- F21K9/278—Arrangement or mounting of circuit elements integrated in the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/69—Details of refractors forming part of the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/15—Thermal insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses a driving-end pin lamp tube with a heat insulation function and an assembly process thereof, and relates to the technical field of pin lamps. According to the drive-end pin lamp tube, the elastic clamping conduction mechanisms are arranged on the two sides of the flexible circuit board, and the current is conducted through the elastic clamping conduction mechanisms, the first contact pin and the second contact pin to form a current path of the first contact pin, the elastic clamping conduction mechanisms, the power supply assembly, the flexible circuit board and the second contact pin, so that the assembly is more convenient, the stability of the flexible circuit board in the process of use through elastic clamping is better, and the light-emitting effect is stable; the heat insulation glue layer has a good heat insulation effect, heat generated by the power supply assembly is prevented from being conducted to the flexible circuit board, the heat insulation performance and the light diffusion performance of the flexible circuit board are further improved after the light diffusion heat insulation coating is coated, and the service life of the flexible circuit board is prolonged; the sealing performance is ensured by the assembly mode of plugging and clamping, and the disassembly and maintenance are convenient.
Description
Technical Field
The invention relates to the technical field of pin lamps, in particular to a pin lamp with a heat insulation function at a driving end and an assembling process thereof.
Background
The LED lamp tube comprises a plug and a lampshade sleeved with the plug, a circuit board is arranged in the lampshade, the plug is provided with a contact pin for connecting with an external power supply, and the contact pin is electrically connected with the circuit board through a lead; during assembly, the contact pin and the circuit board are connected by a lead, and then the plug is packaged on the lamp cover.
Application number 201520710486.8's utility model discloses an assembly structure for LED fluorescent tube, including fluorescent tube, lamp holder, drive power supply and the load has the base plate of LED light source, the lamp holder plug cup joints in the fluorescent tube tip, the base plate set up in inside the fluorescent tube, drive power supply's bottom is equipped with the contact pin, and the base plate upper surface is equipped with the terminal of being connected with the contact pin plug. This patent has solved the loaded down with trivial details and the drive power supply of equipment that the mode of traditional connecting lamp holder and fluorescent tube with the wire caused and has changed complicated problem, makes product production assembly more convenient, and inner structure is also more retrencied. But through research discovery, the heat that power supply module produced diffuses to flexible circuit board easily, leads to the temperature of LED lamp pearl to rise and reduce life, is difficult for realizing the stable assembly of inside components during the equipment moreover, and inconvenient dismantlement maintenance.
Disclosure of Invention
The invention aims to provide a driving-end pin lamp tube with a heat insulation function and an assembling process thereof, and aims to solve the technical problems that in the prior art, heat generated by a power supply assembly is easy to diffuse to a flexible circuit board, so that the temperature of an LED lamp bead is increased, the service life of the LED lamp bead is shortened, and in the assembling process, stable assembly of internal assemblies is not easy to realize, and the disassembly and maintenance are inconvenient.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a driving end contact pin lamp tube with a heat insulation function, which comprises a lamp tube cover, a first lamp cap and a second lamp cap, wherein the first lamp cap and the second lamp cap are assembled on two sides of the lamp tube cover, a power supply assembly and a flexible illumination assembly are arranged in an inner cavity of an assembly area of the lamp tube cover, the first lamp cap and the second lamp cap, a first contact pin is arranged at one end of the first lamp cap, a second contact pin is arranged at one end of the second lamp cap, the flexible illumination assembly comprises a flexible circuit board, two sides of the flexible circuit board are in current conduction with the first contact pin and the second contact pin through an elastic clamping conduction mechanism, a heat insulation glue layer is arranged between the bottom of the power supply assembly and the upper surface of the flexible circuit board, and a light diffusion heat insulation coating is coated on the outer surface of the flexible circuit board.
As a further preferable scheme of the present invention, the power supply assembly includes a power supply board, the power supply board is provided with a driving power supply, an electrolytic capacitor, an inductor, and a resistance-capacitance step-down bleeder resistor, and the driving power supply is electrically connected to the electrolytic capacitor, the inductor, and the resistance-capacitance step-down bleeder resistor; a first power inlet pin and a second power inlet pin are respectively arranged on one side and the other side of the bottom of the power panel, and a first plugging terminal in plugging fit with the first power inlet pin and a second plugging terminal in plugging fit with the second power inlet pin are arranged on the flexible circuit board.
As a further preferable scheme of the present invention, the elastic clamping conduction mechanism includes an installation portion, a flexible bending portion and a clamping portion, the flexible bending portion is disposed below the installation portion and has an arc-shaped bending structure, the clamping portion is disposed below the flexible bending portion and extends toward the installation portion, and the cross-sectional dimension of the clamping portion decreases from a side close to the flexible bending portion to a side far away from the flexible bending portion; the two sides of the flexible circuit board are provided with clamping cavities for clamping the clamping parts.
As a further preferable scheme of the present invention, the mounting portion is rectangular and has a through hole through which the two first power input pins and the two second power input pins pass, and a torsion spring is connected between an inner wall of the flexible bending portion and an inner wall of the clamping portion.
As a further preferable scheme of the invention, the flexible circuit board is further provided with a plurality of LED lamp beads distributed at equal intervals, and the flexible circuit board is an FPC flexible board and is selected from one of a single-layer board, a double-layer board, a multi-layer board or a double-sided board.
As a further preferable scheme of the invention, the lamp tube cover is of a detachable assembly structure and comprises a first tube body and a second tube body which are symmetrically arranged, the first tube body and the second tube body are both semicircular, clamping grooves are horizontally arranged at two ends of the first tube body, clamping strips matched with the clamping grooves are arranged at two ends of the second tube body, and the cross section of each clamping strip is in an L shape; the inner wall of the second pipe body is provided with a step for placing a flexible circuit board, and a plurality of clamping grooves are distributed on the inner walls of the first pipe body and the second pipe body in an annular array manner; the periphery of the first pipe body and the second pipe body close to the end parts is provided with a plurality of circles of concave rings.
As a further preferable scheme of the invention, the first lamp holder and the second lamp holder have the same structure and both comprise an insertion part and an end head part which is integrally formed with the insertion part, a plurality of clamping blocks which are matched with the clamping grooves are distributed on the inner wall of the insertion part close to the end head part in an annular array, and a plurality of rings of wear-resistant convex rings which are matched with the concave rings are arranged on the inner wall of the insertion part between the clamping blocks and the end head part; the end head part is provided with a through hole for the first and second electric-feeding pins to pass through.
The invention also provides an assembly process of the driving-end pin lamp tube with the heat insulation function, which comprises the following steps:
s1, assembling the lamp tube cover: inserting the clamping strip on the second tube body into the clamping groove of the first tube body, so that the first tube body and the second tube body are assembled to obtain the lamp tube cover;
s2, loading the flexible circuit board: inserting a flexible circuit board distributed with a plurality of LED lamp beads into one end of the lamp tube cover, and clamping two sides of the flexible circuit board on the steps of the second tube body;
s3, assembling power supply components: respectively inserting a first power feeding contact pin and a second power feeding contact pin at the bottom of a power panel into a first plug terminal and a second plug terminal of a flexible circuit board; injecting heat insulation glue between the bottom of the power panel and the upper surface of the flexible circuit board to form a heat insulation glue layer;
s4, assembling an elastic clamping conduction mechanism and a lamp holder: insert the through-hole with first contact pilotage, second contact pilotage from the grafting portion inner chamber in, stay in the first contact pilotage of grafting portion inner chamber, the through-hole of second contact pilotage part insertion installation department, the end portion of first lamp holder and second lamp holder embolias from the both ends of fluorescent tube cover, make joint portion block in the joint intracavity of flexible circuit board, the joint cooperation of joint piece joint of joint groove and grafting portion inner wall, wear-resisting bulge loop and concave ring cooperation, the equipment of completion drive end contact pilotage fluorescent tube.
The invention has the following beneficial effects:
1. compared with the prior art, the driving-end contact pin lamp tube with the heat insulation function has the advantages that the elastic clamping conduction mechanisms are arranged on the two sides of the flexible circuit board, and the current is conducted through the elastic clamping conduction mechanisms, the first contact pin and the second contact pin to form a current path of the first contact pin, the elastic clamping conduction mechanisms, the power supply assembly, the flexible circuit board and the second contact pin, so that the assembly is more convenient, the stability of the flexible circuit board in the process of use through elastic clamping is better, and the light emitting effect is stable; the thermal-insulated glue film plays good thermal-insulated effect, avoids the heat conduction that the power supply module produced to the flexible circuit board, and photodiffusion thermal barrier coating has further increased the heat-proof quality and the photodiffusion performance of flexible circuit board after the coating, has improved the life of flexible circuit board.
2. The installation part is convenient to assemble with the first power input contact pin and the second power input contact pin, and the arc-shaped bending of the flexible bending part is convenient for the clamping matching of the clamping part and the clamping cavity; torsion spring not only plays the effect that promotes the electric current and switch on, utilizes torsion moreover to take up joint portion and flexible kink, avoids electric current to switch on the in-process and takes place to rock and influence luminous effect.
3. The assembly process of the lamp tube with the pin at the driving end comprises the steps that a lamp tube cover is obtained by assembling in a clamping mode of a clamping strip and a clamping groove, the power-in pin and a plugging terminal are assembled in a plugging mode, and heat-insulation glue is injected between a power panel and a flexible circuit board to form a heat-insulation glue layer; the elastic clamping conduction mechanism realizes conduction of the first contact pin and the second contact pin with the flexible circuit board; the clamping groove is matched with the clamping block to complete the assembly of the first lamp holder, the second lamp holder and the lamp tube cover; this assembly process can realize the stable assembly of inside subassembly, ensures the heat-proof quality of power supply module, and the assembly methods of plug, joint have ensured sealing performance, and the maintenance is dismantled to the convenience, has prolonged flexible circuit board's life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an exploded view of a drive end pin lamp with thermal isolation in accordance with the present invention;
FIG. 2 is a cross-sectional view of a pin lamp tube with a heat insulation function at the driving end according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is a schematic diagram of a power module and a flexible circuit board according to the present invention;
FIG. 6 is a side view of the lamp tube of the present invention;
FIG. 7 is a side view of the first and second bases of the present invention as viewed from the tip portion;
FIG. 8 is a schematic structural diagram of an elastic clamping conduction mechanism according to the present invention;
fig. 9 is a flow chart of an assembly process of the driving-end pin lamp having the heat insulation function according to the present invention.
Reference numerals: 100. a lamp tube cover; 110. a first pipe body; 111. a card slot; 120. a second tube body; 121. clamping the strip; 122. a step; 123. a clamping groove; 124. a concave ring; 200. a first lamp cap; 210. a first contact pin; 220. a plug-in part; 221. a clamping block; 222. a wear-resistant convex ring; 230. an end portion; 231. a through hole; 300. a second lamp cap; 310. a second contact pin; 400. a power supply component; 410. a power panel; 411. a first power input pin; 412. a second power input pin; 420. a drive power supply; 430. an electrolytic capacitor; 440. an inductor; 450. a resistance-capacitance step-down bleeder resistor; 500. a flexible lighting assembly; 510. a flexible circuit board; 511. a first plug terminal; 512. a second plug terminal; 513. LED lamp beads; 520. a heat insulation glue layer; 530. a clamping cavity; 600. the elastic clamping connection mechanism; 610. an installation part; 611. a through hole; 620. a flexible bend; 630. a clamping part; 640. a torsion spring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 and 5, the present embodiment provides a driving-end pin lamp tube with a heat insulation function, including a lamp tube cover 100, and a first lamp cap 200 and a second lamp cap 300 mounted on two sides of the lamp tube cover 100, wherein a power supply assembly 400 and a flexible lighting assembly 500 are disposed in an inner cavity of a mounting area of the lamp tube cover 100, the first lamp cap 200, and the second lamp cap 300, a first contact pin 210 is disposed at one end of the first lamp cap 200, and a second contact pin 310 is disposed at one end of the second lamp cap 300; the flexible lighting assembly 500 includes a flexible circuit board 510, two sides of the flexible circuit board 510 conduct current with the first contact pin 210 and the second contact pin 310 through an elastic clamping conduction mechanism 600, a thermal insulation glue layer 520 is disposed between the bottom of the power module 400 and the upper surface of the flexible circuit board 510, and a light diffusion thermal insulation coating is coated on the outer surface of the flexible circuit board 510.
Compared with the prior art, the structure of the driving-end pin lamp tube with the heat insulation function comprises a lamp tube cover 100, a first lamp cap 200, a second lamp cap 300, a power supply assembly 400 and a flexible illumination assembly 500, wherein elastic clamping conduction mechanisms 600 are arranged on two sides of a flexible circuit board 510, and the current is conducted with a first contact pin 210 and a second contact pin 310 through the elastic clamping conduction mechanisms 600 to form current paths of the first contact pin 210, the elastic clamping conduction mechanisms 600, the power supply assembly 400, the flexible circuit board 510 and the second contact pin 310, so that the assembly is more convenient, the flexible circuit board 510 is better in stability through elastic clamping in the using process, and the light emitting effect is stable; the thermal insulation glue layer 520 plays a good role in thermal insulation, heat generated by the power module 400 is prevented from being conducted to the flexible circuit board 510, the thermal insulation performance and the light diffusion performance of the flexible circuit board 510 are further improved after the light diffusion thermal insulation coating is coated, and the service life of the flexible circuit board 510 is prolonged.
The power supply assembly 400 comprises a power supply board 410, wherein a driving power supply 420, an electrolytic capacitor 430, an inductor 440 and a resistance-capacitance voltage reduction bleeder resistor 450 are arranged on the power supply board 410, and the driving power supply 420 is electrically connected with the electrolytic capacitor 430, the inductor 440 and the resistance-capacitance voltage reduction bleeder resistor 450; a first power input pin 411 and a second power input pin 412 are respectively arranged on one side and the other side of the bottom of the power panel 410, and a first plugging terminal 511 which is plugged and matched with the first power input pin 411 and a second plugging terminal 512 which is plugged and matched with the second power input pin 412 are arranged on the flexible circuit board 510.
The electrolytic capacitor 430 is formed by using a metal foil (aluminum/tantalum) as a positive electrode and an insulating oxide layer (aluminum oxide/tantalum pentoxide) of the metal foil as a dielectric. The inductor 440 is generally composed of a bobbin, a winding, a shield, a packaging material, a magnetic core or an iron core, etc., and has characteristics opposite to those of a capacitor, and has characteristics of preventing the passage of alternating current and allowing direct current to pass smoothly. The resistor-capacitor step-down bleeder resistor 450 is connected in parallel at both ends of the driving power supply 420, providing a path for consuming electric energy, making the circuit safer.
When the first plug pin 411 is in plug fit with the first plug terminal 511, and the second plug pin 412 is in plug fit with the second plug terminal 512, the current between the driving power supply 420 and the flexible circuit board 510 is conducted, and the assembly is tight, so that the complicated working procedures caused by the welding process and the influence on the use effect caused by the abrasion and separation of the terminal and the plug pin in the later period are avoided.
As shown in fig. 1-3 and 8, the elastic clamping conductive mechanism 600 includes an installation portion 610, a flexible bending portion 620, and a clamping portion 630, the flexible bending portion 620 is disposed below the installation portion 610 and has an arc-shaped bending structure, the clamping portion 630 is disposed below the flexible bending portion 620 and extends toward the installation portion 610, and a cross-sectional dimension of the clamping portion 630 decreases from a side close to the flexible bending portion 620 to a side far away from the flexible bending portion 620; clamping cavities 530 for clamping the clamping parts 630 are arranged on two sides of the flexible circuit board 510. The installation part 610, the flexible bending part 620 and the clamping part 630 are made of conductive rubber, conductive particles such as silver plating on glass, silver plating on aluminum, silver and the like are uniformly distributed in silicon rubber, the conductive particles are contacted through pressure, a good conductive effect is achieved, and meanwhile the electromagnetic sealing and water vapor sealing capabilities are good.
The mounting portion 610 is rectangular and has a through hole 611 through which the two first power pins 411 and the two second power pins 412 pass, and a torsion spring 640 is connected between an inner wall of the flexible bending portion 620 and an inner wall of the clamping portion 630. The through hole 611 facilitates the passing and fixing of the first electrical contact pin 411 and the second electrical contact pin 412; the torsion spring 640 is made of a conductive alloy material.
Due to the arrangement of the elastic clamping conduction mechanism 600, the mounting part 610 is convenient to assemble with the first power input pin 411 and the second power input pin 412, and the arc-shaped bending arrangement of the flexible bending part 620 is convenient to clamp and match the clamping part 630 with the clamping cavity 530; the torsion spring 640 not only plays a role in promoting current conduction, but also utilizes torsion to tighten the clamping portion 630 and the flexible bending portion 620, and avoids the influence on the light emitting effect caused by shaking in the current conduction process.
The flexible circuit board 510 is further provided with a plurality of LED lamp beads 513 distributed at equal intervals, and the flexible circuit board 510 is an FPC (flexible printed circuit) flexible board and is selected from one of a single-layer board, a double-layer board, a multi-layer board and a double-sided board. The FPC soft board is a printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent flexibility, and has the characteristics of high wiring density, light weight, thin thickness and good bending property.
Example 2
As shown in fig. 1-4 and fig. 6, the lamp tube cover 100 of the driving-end pin lamp tube with a heat insulation function of the present embodiment is a detachable assembly structure, and includes a first tube 110 and a second tube 120 that are symmetrically disposed, where the first tube 110 and the second tube 120 are both semicircular, two ends of the first tube 110 are horizontally provided with a clamping groove 111, two ends of the second tube 120 are provided with a clamping strip 121 that is matched with the clamping groove 111, and a cross-sectional shape of the clamping strip 121 is L-shaped; the inner wall of the second tube 120 is provided with a step 122 for placing the flexible circuit board 510, and a plurality of clamping grooves 123 are distributed in an annular array on the inner walls of the first tube 110 and the second tube 120; the first tube 110 and the second tube 120 are provided with a plurality of circles of concave rings 124 on the periphery near the ends.
The lamp tube cover 100 can be selected from a glass tube or a PC transparent cover, the first tube body 110 and the second tube body 120 are assembled by clamping the clamping strip 121 into the clamping groove 111, the steps 122 clamp and fix the two sides of the flexible circuit board 510, and the concave ring 124 is used for increasing friction force between the lamp tube cover 100 and the inner walls of the first lamp holder 200 and the second lamp holder 300 during assembly and increasing sealing performance after assembly.
Example 3
As shown in fig. 1-4 and 6-7, the first lamp holder 200 and the second lamp holder 300 have the same structure, and both include an insertion portion 220 and a tip portion 230 integrally formed with the insertion portion 220, the insertion portion 220 has a plurality of clamping blocks 221 matching with the clamping grooves 123 distributed in an annular array on an inner wall near a section of the tip portion 230, and a plurality of rings of wear-resistant convex rings 222 matching with the concave rings 124 are arranged on an inner wall of the insertion portion 220 between the clamping blocks 221 and the tip portion 230; a through hole 231 for passing the first power input pin 411 and the second power input pin 412 is formed in the header 230.
During the assembly, the clamping grooves 123 on the inner walls of the first tube body 110 and the second tube body 120 are in clamping fit with the clamping blocks 221 on the inner walls of the insertion part 220, and the wear-resistant convex ring 222 is matched with the concave ring 124, so that the lamp tube cover 100, the first lamp holder 200 and the second lamp holder 300 are convenient to assemble, the lamp tube cover is more fastened after being assembled, and the sealing performance is good.
Example 4
The embodiment provides a light diffusion heat insulation coating, which is prepared by mixing, grinding and dispersing the following components in parts by weight: 35-48 parts of water-based acrylic emulsion, 12-18 parts of nano titanium dioxide aerogel, 3-8 parts of talcum powder, 0.6-1.5 parts of sodium dodecyl sulfate, 1-3 parts of barium stearate, 0.5-2 parts of organic silicon defoamer, 0.2-3 parts of propylene glycol phenyl ether and 150-190 parts of deionized water; the mixing and stirring speed is 600-800 rpm, and the materials are ground and dispersed until the particle size of the materials is 20-40 mu m.
The light diffusion heat insulation coating of the embodiment takes the water-based acrylic emulsion as a main component, and is added with the good heat insulation filler nano titanium dioxide aerogel, the lubricating insulating filler talcum powder, the wetting agent sodium dodecyl sulfate, the dispersing agent barium stearate, the organic silicon defoamer and the film forming aid propylene glycol phenyl ether, and multiple components are compounded and compatible, so that the good light diffusion, insulation and heat insulation properties are exerted.
As shown in fig. 1, the light diffusion heat insulation coating is coated on the flexible circuit board 510 in the area outside the LED lamp beads 513, after the coating is dried to form a film, light can be diffused and reflected, the illumination effect is improved, and meanwhile, the heat generated by the LED lamp beads 513 and the power supply module 400 is absorbed to participate in heat, so that the heat insulation and the light diffusion effect are improved.
Example 5
As shown in fig. 1 to 9, the present embodiment provides an assembly process of a driving-end pin lamp tube with a heat insulation function, which includes the following steps:
s1, assembling the lamp tube cover 100: inserting the clamping strip 121 on the second tube 120 into the clamping groove 111 of the first tube 110, so that the first tube 110 and the second tube 120 are assembled to obtain the lamp tube cover 100;
s2, the flexible circuit board 510 is loaded: inserting the flexible circuit board 510 distributed with a plurality of LED lamp beads 513 from one end of the lamp tube housing 100, so that two sides of the flexible circuit board 510 are clamped on the step 122 of the second tube body 120;
s3, power module 400 assembly: inserting a first power input pin 411 and a second power input pin 412 at the bottom of the power panel 410 into a first plug terminal 511 and a second plug terminal 512 of the flexible circuit board 510 respectively; injecting heat insulation glue between the bottom of the power panel 410 and the upper surface of the flexible circuit board 510 to form a heat insulation glue layer 520;
s4, assembling the lamp holder by the elastic clamping conduction mechanism 600: the first contact pin 210 and the second contact pin 310 are inserted into the through hole 231 from the inner cavity of the inserting part 220, the first contact pin 210 and the second contact pin 310 which are remained in the inner cavity of the inserting part 220 are partially inserted into the through hole 611 of the mounting part 610, the end head parts 230 of the first lamp holder 200 and the second lamp holder 300 are sleeved from the two ends of the lamp tube cover 100, the clamping part 630 is clamped in the clamping cavity 530 of the flexible circuit board 510, the clamping groove 123 is clamped and matched with the clamping block 221 on the inner wall of the inserting part 220, the wear-resistant convex ring 222 is matched with the concave ring 124, and the assembly of the driving-end pin lamp tube is completed.
The assembly process of the drive-end pin lamp tube with the heat insulation function comprises the steps of assembling a lamp tube cover 100, assembling a flexible circuit board 510, assembling a power supply assembly 400, assembling an elastic clamping conduction mechanism 600 and assembling a lamp cap; assembling the lamp tube cover 100 by clamping the clamping strip 121 and the clamping groove 111, assembling the power-in pin and the plug-in terminal in a plug-in mode, and injecting heat-insulating glue between the power panel 410 and the flexible circuit board 510 to form a heat-insulating glue layer 520; the elastic clamping conduction mechanism 600 realizes conduction between the first contact pin 210 and the second contact pin 310 and the flexible circuit board 510; the clamping groove 123 is matched with the clamping block 221 to complete the assembly of the first lamp holder 200, the second lamp holder 300 and the lamp tube cover 100; this assembly process can realize the stable assembly of inside subassembly, ensures power supply module 400's heat-proof quality, and the assembly methods of plug, joint have ensured sealing performance, and the maintenance is dismantled to the convenience, has prolonged flexible circuit board 510's life.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A driving end pin lamp tube with a heat insulation function comprises a lamp tube cover (100), a first lamp cap (200) and a second lamp cap (300) which are assembled on two sides of the lamp tube cover (100), a power supply assembly (400) and a flexible illumination assembly (500) are arranged in an inner cavity of an assembly area of the lamp tube cover (100), the first lamp cap (200) and the second lamp cap (300), a first contact pin (210) is arranged at one end of the first lamp cap (200), a second contact pin (310) is arranged at one end of the second lamp cap (300), the flexible illumination assembly (500) is characterized by comprising a flexible circuit board (510), the two sides of the flexible circuit board (510) are connected with a first contact pin (210) and a second contact pin (310) through an elastic clamping connection conduction mechanism (600), a heat insulation glue layer (520) is arranged between the bottom of the power supply assembly (400) and the upper surface of the flexible circuit board (510), and a light diffusion heat insulation coating is coated on the outer surface of the flexible circuit board (510).
2. The driving-end pin lamp tube with the heat insulation function according to claim 1, wherein the power supply assembly (400) comprises a power supply board (410), a driving power supply (420), an electrolytic capacitor (430), an inductor (440) and a resistance-capacitance voltage reduction bleeder resistor (450) are arranged on the power supply board (410), and the driving power supply (420) is electrically connected with the electrolytic capacitor (430), the inductor (440) and the resistance-capacitance voltage reduction bleeder resistor (450); a first power inlet pin (411) and a second power inlet pin (412) are respectively arranged on one side and the other side of the bottom of the power panel (410), and a first plugging terminal (511) which is in plugging fit with the first power inlet pin (411) and a second plugging terminal (512) which is in plugging fit with the second power inlet pin (412) are arranged on the flexible circuit board (510).
3. The driving-end pin lamp tube with the heat insulation function according to claim 1, wherein the elastic clamping conduction mechanism (600) comprises a mounting portion (610), a flexible bending portion (620) and a clamping portion (630), the flexible bending portion (620) is arranged below the mounting portion (610) and has an arc-shaped bending structure, the clamping portion (630) is arranged below the flexible bending portion (620) and extends towards the mounting portion (610), and the cross-sectional dimension of the clamping portion (630) decreases from the side close to the flexible bending portion (620) to the side far away from the flexible bending portion (620); clamping cavities (530) for clamping the clamping parts (630) are arranged on two sides of the flexible circuit board (510).
4. The driving-end pin lamp tube with the heat insulation function as claimed in claim 3, wherein the mounting portion (610) is rectangular and has a through hole (611) for two first power pins (411) and two second power pins (412) to pass through, and a torsion spring (640) is connected between an inner wall of the flexible bending portion (620) and an inner wall of the clamping portion (630).
5. The driving-end pin lamp tube with the heat insulation function according to claim 1, wherein the flexible circuit board (510) is further provided with a plurality of LED lamp beads (513) distributed at equal intervals, and the flexible circuit board (510) is an FPC flexible board and is selected from one of a single-layer board, a double-layer board, a multi-layer board and a double-layer board.
6. The driving-end pin lamp tube with the heat insulation function according to claim 1, wherein the lamp tube cover (100) is a detachable assembly structure and comprises a first tube body (110) and a second tube body (120) which are symmetrically arranged, the first tube body (110) and the second tube body (120) are both semicircular, clamping grooves (111) are horizontally arranged at two ends of the first tube body (110), clamping strips (121) matched with the clamping grooves (111) are arranged at two ends of the second tube body (120), and the cross-sectional shapes of the clamping strips (121) are L-shaped; the inner wall of the second pipe body (120) is provided with a step (122) for placing the flexible circuit board (510), and a plurality of clamping grooves (123) are distributed on the inner walls of the first pipe body (110) and the second pipe body (120) in an annular array; the periphery of the first pipe body (110) and the second pipe body (120) close to the end parts is provided with a plurality of circles of concave rings (124).
7. The driving-end pin lamp tube with the heat insulation function according to claim 1, wherein the first lamp holder (200) and the second lamp holder (300) have the same structure and each comprise an insertion part (220) and an end head part (230) integrally formed with the insertion part (220), a plurality of clamping blocks (221) matched with the clamping grooves (123) are distributed on the inner wall of the insertion part (220) close to the section of the end head part (230) in an annular array, and a plurality of circles of wear-resistant convex rings (222) matched with the concave rings (124) are arranged on the inner wall of the insertion part (220) between the clamping blocks (221) and the end head part (230); the end part (230) is provided with a through hole (231) for the first electricity inlet pin (411) and the second electricity inlet pin (412) to pass through.
8. An assembly process of a heat insulation driving end pin lamp tube, which is suitable for the heat insulation driving end pin lamp tube of any one of claims 1 to 7, and is characterized by comprising the following steps:
s1, assembling the lamp tube cover: inserting the clamping strip (121) on the second tube body (120) into the clamping groove (111) of the first tube body (110) to enable the first tube body (110) and the second tube body (120) to be assembled to obtain the lamp tube cover (100);
s2, loading the flexible circuit board: inserting a flexible circuit board (510) distributed with a plurality of LED lamp beads (513) into one end of a lamp tube cover (100), and clamping two sides of the flexible circuit board (510) on steps (122) of a second tube body (120);
s3, assembling power supply components: inserting a first power input pin (411) and a second power input pin (412) at the bottom of a power panel (410) into a first plug terminal (511) and a second plug terminal (512) of a flexible circuit board (510) respectively; injecting heat insulation glue between the bottom of the power panel (410) and the upper surface of the flexible circuit board (510) to form a heat insulation glue layer (520);
s4, assembling an elastic clamping conduction mechanism and a lamp holder: inserting a first contact pin (210) and a second contact pin (310) into a through hole (231) from an inner cavity of an inserting part (220), inserting parts of the first contact pin (210) and the second contact pin (310) which are left in the inner cavity of the inserting part (220) into a through hole (611) of an installing part (610), sleeving end head parts (230) of a first lamp holder (200) and a second lamp holder (300) from two ends of a lamp tube cover (100), clamping the clamping part (630) in a clamping cavity (530) of a flexible circuit board (510), clamping grooves (123) and clamping blocks (221) on the inner wall of the inserting part (220) in a clamping fit mode, matching a wear-resistant convex ring (222) and a concave ring (124), and finishing the assembly of a driving end pin lamp tube.
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| CN202111034027.9A CN113719767B (en) | 2021-09-03 | 2021-09-03 | Driving end contact pin lamp tube with heat insulation function and assembling process thereof |
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| CN113719767B (en) | 2022-07-22 |
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