CN111102486A - Lamp with PCB capable of adjusting tolerance problem or electric leakage problem - Google Patents

Lamp with PCB capable of adjusting tolerance problem or electric leakage problem Download PDF

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Publication number
CN111102486A
CN111102486A CN201911347584.9A CN201911347584A CN111102486A CN 111102486 A CN111102486 A CN 111102486A CN 201911347584 A CN201911347584 A CN 201911347584A CN 111102486 A CN111102486 A CN 111102486A
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CN
China
Prior art keywords
pcb
radiator
insulating convex
pcb board
issues
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911347584.9A
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Chinese (zh)
Inventor
李希龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Longstar Lighting Co Ltd
Original Assignee
Xiamen Longstar Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Longstar Lighting Co Ltd filed Critical Xiamen Longstar Lighting Co Ltd
Publication of CN111102486A publication Critical patent/CN111102486A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • 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
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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 lamp with a PCB capable of adjusting tolerance or electric leakage, which comprises a radiator, the PCB and an aluminum substrate with an LED light source, wherein the top edge of the PCB is outwards convexly provided with at least one insulating convex pin, the PCB is limited in the radiator, the insulating convex pin abuts against the inner top surface of the radiator, the aluminum substrate is fixedly connected to the top of the radiator, and the PCB is electrically connected with the aluminum substrate through a lead. Because the insulating convex pin has no conductivity, the problem of electric leakage can be avoided when the insulating convex pin is contacted with the radiator; and, the topside of PCB board contacts with the radiator only through insulating protruding foot rather than whole topside of PCB board and radiator, improves into the cooperation of point face by current line face cooperation, no matter when the PCB board appears positive tolerance or negative tolerance, if adopt the mode of forced equipment also can better match, only need overcome less power just can assemble the completion, can not produce the influence to subsequent production and processing.

Description

Lamp with PCB capable of adjusting tolerance problem or electric leakage problem
Technical Field
The invention relates to a lamp with a PCB board capable of adjusting tolerance problem or electric leakage problem.
Background
In the existing lamp, especially the LED lamp, a PCB (printed Circuit Board) of a driving power supply is installed in a radiator, and tolerance problem or electric leakage problem is easy to occur between the PCB and the radiator. When the PCB has negative tolerance, the PCB is in a loose state in the radiator, and the problem of electric leakage between the PCB and the radiator is easily caused; when the PCB has positive tolerance, the PCB occupies a large space inside the radiator, so that other components cannot be normally installed.
There is a need for an improved structure of an existing PCB board to adapt to various lamps.
Disclosure of Invention
The present invention provides a lamp having a PCB board that can accommodate tolerance problems or electrical leakage problems, which overcomes the deficiencies of the background art. The technical scheme adopted by the invention for solving the technical problems is as follows:
lamps and lanterns with PCB board that can adjust tolerance problem or electric leakage problem, its characterized in that: the LED lamp comprises a radiator, a PCB and an aluminum substrate with an LED light source, wherein at least one insulating convex pin is arranged on the top edge of the PCB in an outward protruding mode, the PCB is limited in the radiator, the insulating convex pin abuts against the inner top surface of the radiator, the aluminum substrate is fixedly connected to the top of the radiator, and the PCB is electrically connected with the aluminum substrate through a wire.
In a preferred embodiment: the insulating convex feet are triangular or trapezoidal, and the transverse size of the triangular or trapezoidal insulating convex feet is gradually increased from top to bottom.
In a preferred embodiment: the radiator comprises a radiating shell and a heat conducting plate fixedly connected in the radiating shell, the heat conducting plate is provided with at least one opening, one end of a lead is connected with the PCB, the other end of the lead penetrates through the opening and then is connected with the aluminum substrate, the number of the insulating convex pins is the same as that of the openings, and each insulating convex pin part corresponds to one opening.
In a preferred embodiment: the inner bevel edge of the insulating convex foot corresponds to the inner end of the opening.
In a preferred embodiment: the number of the insulating convex feet is two and arranged at intervals, and the number of the open holes is two and arranged at intervals.
In a preferred embodiment: still include the lens, the lens rigid coupling is in the top portion of heat dissipation casing.
In a preferred embodiment: the radiator comprises a sleeve with an opening at the bottom end, a power box is additionally arranged, the power box extends into the sleeve and covers the opening of the sleeve, the bottom edge of the PCB abuts against the inner wall of the power box, the insulating convex foot abuts against the inner top surface of the sleeve, and the aluminum substrate is fixedly connected to the outer top surface of the sleeve.
In a preferred embodiment: still include the printing opacity cover, this printing opacity cover joint is at the sleeve top.
In a preferred embodiment: the aluminum base plate is pasted in the limiting groove, a buckle is arranged on the outer side of the limiting groove, a clamping groove is formed in the inner side face of the bottom end of the light-transmitting cover, and the light-transmitting cover is connected with the sleeve through the clamping cooperation of the buckle and the clamping groove.
Compared with the background technology, the technical scheme has the following advantages:
1. because the top edge of the PCB is convexly provided with the insulating convex pin outwards, the PCB is limited in the radiator and the insulating convex pin is propped against the inner top surface of the radiator, and because the insulating convex pin has no conductivity, the problem of electric leakage can be avoided when the insulating convex pin is contacted with the radiator; and, the topside of PCB board contacts with the radiator only through insulating protruding foot rather than whole topside of PCB board and radiator, improves into the cooperation of point face by current line face cooperation, no matter when the PCB board appears positive tolerance or negative tolerance, if adopt the mode of forced equipment also can better match, only need overcome less power just can assemble the completion, can not produce the influence to subsequent production and processing.
2. The insulating convex foot is triangular or trapezoidal, and the transverse dimension of the triangular or trapezoidal insulating convex foot is gradually enlarged from top to bottom, so that the connecting area of the connecting part of the insulating convex foot and the PCB is large, the connecting strength of the insulating convex foot and the PCB is better, and when the PCB has positive tolerance, the redundant part at the top end of the insulating convex foot can be removed without influencing the connecting strength of the insulating convex foot and the PCB.
3. Each insulating convex foot part corresponds to one of the openings, and when the PCB has positive tolerance, the insulating convex foot can extend out of the radiator through the opening so as to adjust the assembly gap between the PCB and the radiator.
4. The inner side bevel edge of the insulating convex foot corresponds to the inner end of the opening, and the inner side bevel edge can support the heat conducting plate.
And 5, the bottom edge of the PCB is abutted against the inner wall of the power box, and the insulating convex foot is abutted against the inner top surface of the sleeve, so that the problem of electric leakage between the PCB and the radiator can be avoided.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is an exploded view of a lamp having a PCB capable of accommodating tolerance problems or electrical leakage problems according to a preferred embodiment.
FIG. 2 is a cross-sectional view of a lamp with a PCB capable of accommodating tolerance problems or electrical leakage problems according to a preferred embodiment.
FIG. 3 is an exploded view of a lamp with a PCB capable of accommodating tolerance problems or electrical leakage problems according to another preferred embodiment.
FIG. 4 is a cross-sectional view of a lamp with a PCB capable of accommodating tolerance problems or electrical leakage problems according to another preferred embodiment.
Detailed Description
Referring to fig. 1 to 2, a preferred embodiment of a lamp having a PCB capable of adjusting tolerance or leakage problems includes a heat sink, a PCB 10, and an aluminum substrate 20 with LED light sources.
The PCB 10 is characterized in that at least one insulating convex pin 11 is arranged on the top edge of the PCB in an outward protruding mode, the PCB 10 is limited in the radiator, the insulating convex pin 11 abuts against the inner top surface of the radiator, the aluminum substrate 20 is fixedly connected to the top of the radiator, and the PCB 10 is electrically connected with the aluminum substrate 20 through a conducting wire.
In this embodiment, the insulating protruding leg 11 is triangular, and the transverse dimension of the triangular insulating protruding leg 11 is gradually increased from top to bottom.
In this embodiment, the heat sink includes a heat dissipating housing 30 and a heat conducting plate 31 fixed in the heat dissipating housing 30, the heat conducting plate 31 is provided with at least one opening 32, one end of a wire is connected to the PCB 10, the other end of the wire passes through the opening 32 and then is connected to the aluminum substrate 20, the number of the insulating protruding pins 11 is the same as that of the openings 32, and each insulating protruding pin 11 corresponds to one of the openings 32. As shown in fig. 2, the heat dissipation housing 30 includes a vertical portion 301 and an arc portion 302; the left side and the right side of the PCB 10 are also provided with a vertical section 101 and an inclined section 102, the vertical section 101 on the left side and the right side of the PCB 10 is matched with a vertical part 301 of the heat dissipation shell, and the inclined section 102 on the left side and the right side of the PCB 10 is matched with an arc-shaped part 302 of the heat dissipation shell; that is, the left and right sides of the PCB 10 are clamped in the vertical portion 301 and the arc portion 302 of the heat dissipation housing 30, and the limitation of the PCB 10 is realized by the abutting cooperation of the insulating protruding leg 11 and the heat conduction plate 31. The heat conducting plate 31 and the heat dissipating housing 30 may be fixed by bonding or screw locking. As shown in fig. 2, the aluminum substrate 20 is locked to the heat conductive plate 31 by screws.
In this embodiment, the number of the insulating protruding legs 11 is two and the insulating protruding legs are arranged at intervals, the number of the openings 32 is two and the insulating protruding legs are arranged at intervals, and the inner oblique sides of the insulating protruding legs 11 correspond to the inner ends of the openings 32. According to the requirement, the number of the insulating convex feet 11 can be one, three or four, but not limited to this.
In this embodiment, the lamp further includes a lens 40, and the lens 40 is fixed to the top end portion of the heat dissipation housing 30. As shown in fig. 1, the lens 40 is provided with a plurality of hooks 41 arranged at intervals in the circumferential direction, the inner wall of the heat dissipation housing 30 is provided with a plurality of fastening grooves (not shown in the figure), and the lens 40 is connected with the heat dissipation housing 30 by the snap fit of the hooks 41 and the fastening grooves.
It can be seen that when the length of the PCB board 10 has a tolerance during the production process, the insulation convex leg 11 can be inserted into the opening 32 for adjustment; the insulating convex pins 11 have no conductivity, so that the leakage phenomenon can be avoided.
Please refer to fig. 3 and 4, which illustrate another preferred embodiment of a lamp having a PCB board capable of adjusting tolerance or leakage. The lamp of the present embodiment has a different structure from the lamp of the previous embodiment.
In this embodiment, the heat sink includes a sleeve 50 with an opening at the bottom end, and a power box 60 is further disposed, the power box 60 extends into the sleeve 50 and covers the opening of the sleeve 50, the bottom edge of the PCB 10 abuts against the inner wall of the power box 60, the insulating protruding feet 11 abut against the inner top surface of the sleeve 50, and the aluminum substrate 20 is fixedly connected to the outer top surface of the sleeve 50. As shown in fig. 4, the left and right sides inside the power supply box 60 are provided with a limiting strip 61, the left and right sides of the bottom of the PCB 10 are respectively abutted against the side surface of the limiting strip 61, and the PCB 10 is limited in the heat sink by the abutting fit of the insulating convex leg 11 and the inner top surface of the sleeve 50. As shown in fig. 4, the insulating protruding leg 11 has a trapezoidal shape.
In this embodiment, the lamp further comprises a light-transmitting cover 70, and the light-transmitting cover 70 is fastened to the top end of the sleeve 50. Unlike the previous embodiment, this embodiment is not provided with a lens.
In this embodiment, the top end of the sleeve 50 is provided with a limiting groove 51, the aluminum substrate 20 is adhered in the limiting groove 51, a buckle 52 is arranged outside the limiting groove 51, a clamping groove 71 is arranged on the inner side surface of the bottom end of the light-transmitting cover 70, and the light-transmitting cover 70 is connected with the sleeve 50 through the clamping fit of the buckle 52 and the clamping groove 71.
According to the requirement, the structure of the lamp can be other structures, and the two embodiments are not limited to the above, so that the lamp is subject to the PCB capable of realizing tolerance adjustment or leakage.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.

Claims (9)

1. Lamps and lanterns with PCB board that can adjust tolerance problem or electric leakage problem, its characterized in that: the LED lamp comprises a radiator, a PCB and an aluminum substrate with an LED light source, wherein at least one insulating convex pin is arranged on the top edge of the PCB in an outward protruding mode, the PCB is limited in the radiator, the insulating convex pin abuts against the inner top surface of the radiator, the aluminum substrate is fixedly connected to the top of the radiator, and the PCB is electrically connected with the aluminum substrate through a wire.
2. A light fixture with PCB board that can accommodate tolerance issues or electrical leakage issues as recited in claim 1, wherein: the insulating convex feet are triangular or trapezoidal, and the transverse size of the triangular or trapezoidal insulating convex feet is gradually increased from top to bottom.
3. A light fixture with PCB board that can accommodate tolerance issues or electrical leakage issues as recited in claim 2, wherein: the radiator comprises a radiating shell and a heat conducting plate fixedly connected in the radiating shell, the heat conducting plate is provided with at least one opening, one end of a lead is connected with the PCB, the other end of the lead penetrates through the opening and then is connected with the aluminum substrate, the number of the insulating convex pins is the same as that of the openings, and each insulating convex pin part corresponds to one opening.
4. A light fixture with PCB board that can accommodate tolerance issues or electrical leakage issues as recited in claim 3, wherein: the inner bevel edge of the insulating convex foot corresponds to the inner end of the opening.
5. The luminaire of claim 4, having a PCB board that can accommodate tolerance issues or electrical leakage issues, wherein: the number of the insulating convex feet is two and arranged at intervals, and the number of the open holes is two and arranged at intervals.
6. A light fixture with PCB board that can accommodate tolerance issues or electrical leakage issues as recited in claim 3, wherein: still include the lens, the lens rigid coupling is in the top portion of heat dissipation casing.
7. A light fixture with PCB board that can accommodate tolerance issues or electrical leakage issues as recited in claim 2, wherein: the radiator comprises a sleeve with an opening at the bottom end, a power box is additionally arranged, the power box extends into the sleeve and covers the opening of the sleeve, the bottom edge of the PCB abuts against the inner wall of the power box, the insulating convex foot abuts against the inner top surface of the sleeve, and the aluminum substrate is fixedly connected to the outer top surface of the sleeve.
8. The luminaire of claim 7, having a PCB board that can accommodate tolerance issues or electrical leakage issues, wherein: still include the printing opacity cover, this printing opacity cover joint is at the sleeve top.
9. The luminaire of claim 8, wherein said PCB board has tolerance or leakage issues adjustable therein: the aluminum base plate is pasted in the limiting groove, a buckle is arranged on the outer side of the limiting groove, a clamping groove is formed in the inner side face of the bottom end of the light-transmitting cover, and the light-transmitting cover is connected with the sleeve through the clamping cooperation of the buckle and the clamping groove.
CN201911347584.9A 2019-09-23 2019-12-24 Lamp with PCB capable of adjusting tolerance problem or electric leakage problem Pending CN111102486A (en)

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CN2019215873244 2019-09-23
CN201921587324 2019-09-23

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CN201911347584.9A Pending CN111102486A (en) 2019-09-23 2019-12-24 Lamp with PCB capable of adjusting tolerance problem or electric leakage problem

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211315819U (en) * 2019-09-23 2020-08-21 厦门龙胜达照明电器有限公司 Lamp with PCB capable of adjusting tolerance problem or electric leakage problem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203731119U (en) * 2013-12-05 2014-07-23 四川新力光源股份有限公司 Led illuminating lamp
CN205065415U (en) * 2015-11-04 2016-03-02 甘婷梅 Aluminum cup ball bubble lamp
CN205480310U (en) * 2016-01-26 2016-08-17 佛山市顺德区欧和照明电器有限公司 LED (Light emitting diode) globular bulb
CN207674397U (en) * 2017-12-14 2018-07-31 宁波凯耀电器制造有限公司 A kind of LED light of double heat dissipation systems
CN211315819U (en) * 2019-09-23 2020-08-21 厦门龙胜达照明电器有限公司 Lamp with PCB capable of adjusting tolerance problem or electric leakage problem

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203731119U (en) * 2013-12-05 2014-07-23 四川新力光源股份有限公司 Led illuminating lamp
CN205065415U (en) * 2015-11-04 2016-03-02 甘婷梅 Aluminum cup ball bubble lamp
CN205480310U (en) * 2016-01-26 2016-08-17 佛山市顺德区欧和照明电器有限公司 LED (Light emitting diode) globular bulb
CN207674397U (en) * 2017-12-14 2018-07-31 宁波凯耀电器制造有限公司 A kind of LED light of double heat dissipation systems
CN211315819U (en) * 2019-09-23 2020-08-21 厦门龙胜达照明电器有限公司 Lamp with PCB capable of adjusting tolerance problem or electric leakage problem

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