TW201202612A - LED light, lamp wick and lamp thereof - Google Patents

Abstract

The present invention discloses an LED light, a lamp wick and a lamp thereof, characterized in that a heat sink piece is a component of the lamp, and the lamp wick includes an LED wick and a thermal core. A fastening device between the lamp wick and the heat sink piece uses an installation rotation angle not exceeding 180 degrees, and an axial elastic tensioning device is provided so that the contact pressure of the heat transfer surface between the thermal core and the heat sink piece can be ensured, thereby solving the problem of contact heat transfer instability caused by manufacturing error; it not only provides easy installation for users but also easily ensures the installation accuracy of all components.

Description

201202612, invention: [Technical Field] The present invention relates to the field of LED lighting technology, and more particularly to an LED lighting lamp in which a heat sink is used as a component in a lamp, and a wick and a heat sink can be easily assembled and disassembled. [Prior Art] Chinese invention patent application "LED lighting and its LED wick", application number: 200900108927. 6, disclosed an LED lighting, proposed LED wick and heat sink (lamp) as a detachable part, LED wick included With LED core and thermal core, LED wick will be designed into a series of standard components, and a technical solution to solve the problem of heat conduction between LED wick (thermal conductive core) and heat sink is disclosed. The structure is the simplest, the easiest to process, and the cost. The low is the cone thermal core solution. Although the tapered column and hole are easy to machine and the accuracy is easy to guarantee, any machining has errors, such as a taper of 1: 1 〇. If the cone diameter and the outer diameter of the cone are 0. 05 mm (very small), the reaction is thermally conductive. The difference in axial displacement of the core is 0. 5mm, which is very large. The heat transfer resistance between the heat conducting core and the heat sink is closely related to the contact pressure between the contact heat transfer surfaces of the heat transfer core, and the pressure is large and the heat resistance is small. The users of the lighting are the majority of the people. The wick should be designed and manufactured without any tools or training, so that ordinary people can correctly install the wick in place and ensure the thermal resistance between the heat-conducting core and the heat sink. cause problems. But the above mentioned hair

[SJ 3 201202612 There is also no disclosure of the patent application and the technical solution to this problem is not involved in this problem. SUMMARY OF THE INVENTION The object of the present invention is to solve the above problems, and step by step: the use of an axial elastic tensioning mechanism, the contact heat transfer surface between the heat conducting core and the bulk sheet has a certain contact force. , that is, to ensure that the contact thermal resistance between the two does not exceed the specified value:

Reliable purpose, reduce the processing and translation of the printing, the search for ... the processing precision is the cost. It adopts the installation rotation angle* over Cong's fastening mechanism, which makes the structure simple and easy to install. The technical solution of the present invention is that the LED lighting lamp includes a heat sink and a wick. The wick includes an LED core and a heat conducting core, and the heat sink

The chip fastening device has a contact heat transfer surface on the heat conducting core. The loose film I also has a corresponding contact heat transfer surface. The heat sink is a part of the lamp, and the wick can be easily removed from the heat sink (lamp). And installed, the heat transfer between the political heat film and the wick is through their contact heat transfer surface. The present invention is characterized in that a fastening mechanism for mounting a rotation angle of not more than 1802 is employed between the wick and the heat sink, and an axial elastic tensioning mechanism is provided. - The fastening mechanism with the installation angle of rotation not exceeding 180Q is the fastening device on the lamp 4, inserted into the heat sink, as long as the wick is rotated, but the angle of rotation cannot exceed Na'. With such a fastening mechanism, it is not necessary to use the 201202612 to install the lamp material, and to ensure that the user is correctly installed to the axial elastic tensioning mechanism, and the wick is fastened to the position between the heat sink. The contact pressure of the contact heat transfer surface of the two is ensured by the axial elastic tensioning mechanism, so the heat transfer resistance (contact thermal resistance) between the wick and the heat sink is controlled, which solves the problem caused by the processing and manufacturing error. The problem of unstable heat transfer reduces the cost of adding 'meaning that it saves costs. [Embodiment]

An LED illumination lamp of the present invention is shown. The contact heat transfer surface between the heat sink fins 3 is a planar 'LED core, 1 is disposed on the other side of the heat conductive core 2, and the contact of the axial rod 4 from the heat conductive core 2 is transmitted. The center of the hot surface is extended. 'The horizontal locking rod 5 is disposed on the axial rod 4. The elastic device 6 is disposed between the heat sink 3 and the lateral locking rod 5: the elastic shock 6 is disposed on the heat sink 3, The thrust of the lateral lock 'bar 5 elastic means 6 constitutes an axial elastic tensioning mechanism, so that the contact force of the contact heat transfer surface between the heat conducting core 2 and the heat sink 3 can be ensured by the elastic means 6, while It can also ensure that the heat transfer resistance between the two is effectively controlled. The wick includes a heat conducting core 2, an LED core 1 and a wick cover 7. The process of mounting the wick to the heat sink 3 (lamp) is as follows: A long through hole ι is provided on the heat sink 3 with a lateral locking lever, see Fig. 2 'The transverse locking lever 5 on the wick passes the length The strip passes through the heat sink, the rotation angle (9〇q shown in Fig. 2), and the lamp 201202612 is fastened to the heat sink 3. From Fig. 2, it can be directly seen that the rotation angle does not exceed 180Q. Therefore, such a fastening mechanism is called a fastening mechanism with a rotation angle of not more than 180Q. The function of the wick cover 7 is to protect the LED core for user installation and secondary optics (e.g., scattering or concentrating).

The LED illuminator shown in Figure 3, the wick and the heat sink (lamp) fastening mechanism is different from the one shown in the circle 1 in that the axial elastic tensioning mechanism is the same, in the ® I 3 , The axial elastic tensioning mechanism is disposed on the axial rod 4, and is realized by the elastic 箦 u. The axial tensioning mechanism can also adopt the design of the elastic locking rod of the lateral locking rod 5; the contact heat transfer surface in FIG. It is a conical surface. The present invention is not limited to a conical column structure, and the fin 3 is provided with a conical hole that matches the cone: the hot core, and the tapered surface is a contact heat transfer surface. At the front end of the heat conducting core 2, there is a (10) core cymbal, and at the rear end there is a squid 14; the heat sink 3 is provided with a corresponding latch 12, the ® 6 is a schematic view of the buckle of Fig. 4, and the buckle 12 has a buckle Tongue 15, to wear:: The gap on the hot core is passed through the buckle, the buckle is directly inserted and 1 lock: the device rotates at a certain angle, ... "In particular, the lock is hit by the stunned tongue 15 The core (wick) is fastened to the lock-up lamp. The lock structure is called the plug-in type, and the 'rotation angle' cannot exceed the axis.

The mechanism can be realized by a latching device. As shown in FIG. 6, the tongue 15 on the J 201202612 adopts a spring-like structure, and the tongue and groove 5 can be elastically deformed, and the elastic force of the tongue 15 is pushed on the top of the heat conducting core. The buckle 14 generates an axial tensioning force. Of course, the locking device can also adopt other axial elastic tensioning mechanisms. The locker with the axial elastic tensioning mechanism shown in Fig. 6 has a simple structure, is made of a metal plate material, and is produced by a press forming process, and has high production efficiency. The clasp 14 and the heat conducting core 2 shown in FIG. 5 are of an integral structure, and the heat conducting core is made of aluminum material, and the heat conducting core can be manufactured by a hot die casting process, and the production efficiency is high. The LED lighting lamp shown in Fig. 4, the power connection of the wick and the lamp is coaxially plugged, and the plug is fixed on the heat sink 3 through the rear cover 13. The LED illuminating lamp of the present invention shown in Fig. 7 is similar to that shown in Fig. 4, and also employs a plug-in rotary lock structure, and the same fastener with an axial elastic tensioning mechanism. The difference is that in Fig. 7, the elastic contact type electrical connection is used, and the elastic cover 16 is disposed on the rear cover 13, and the corresponding electrode disk 8 is disposed at the rear end of the heat conductive core 2. It is also possible to adopt a design in which the elastic electrode 16 can be brought into contact with the corresponding electrode on the electrode disk 18 only when the heat conducting core (wick) is rotated to (or exceeds) a set angle, thereby ensuring that the user installs the wick. When the wick rotation angle is in place, the contact pressure of the contact heat transfer surface between the heat conductive core and the heat sink is ensured to reach a prescribed value, and a corner limit mechanism is arranged on the locker so that the rotation angle of the installation wick does not exceed a prescribed angle. < The mound adopts the contact type electrical connection shown in Fig. 7. If the two electrodes have 201202612 positive and negative points 'to ensure that the installation is not error, the hooks 14 on the heat conductive core can be designed to be inconsistent in size' and the corresponding locks The notch on the device (the hook through the mouth) is also designed with an inconsistent size, so that only the fixed direction can insert the hook and pass through the lock. There is also a feature in Fig. 7 that a temperature detector 17' is disposed on the central shaft and is fixed to the heat sink 3 through the rear cover 13, and the temperature detector 17 is inserted into the heat conducting core 2 to directly detect the temperature of the heat conducting core 2, so that Detect the temperature of the thermal core and adjust the power to ensure that the temperature of the LED core does not exceed the specified value. It is also possible to set a temperature detector on the heat sink, monitor the power with a certain characteristic temperature on the heat sink, and ensure that the LED core is not overheated. In Fig. 7, the 'snap hook 14 and the heat conducting core 2 are two parts, and then assembled by a connecting mechanism (in the figure, fixed by screws). The reason and advantage of the design is that the general heat conducting core is made of aluminum, and the strength of the aluminum is not high. It is divided into two parts, the hook can be made of steel, high strength, low material cost, and the structure of the heat conductive core is simplified. It can be manufactured by cold stamping method with high precision, which can save the mechanical cutting process. . For the design of the two separate parts of the buckle and the heat conducting core, an axial elastic displacement connecting mechanism can be adopted between the hook and the heat conducting core to achieve axial elastic tension between the heat conducting core and the heat sink. For example, in Figure 7, a spring (spring piece) is added to the screw that fixes the hook, and a gap is left. The lock between the hook and the heat conducting core can be axially elasticized as shown in 201202612. Alternatively, the hook on the hook is designed to resemble the tongue 15 in the buckle, and a shrapnel structure is employed. Said round y corpse; r not the LED lighting of the invention, the use of heat between the heat sink and the heat sink 3 (lamp) (the wick) shows that the buckle 14 and the lock 12 of the lock 14 is similar to the screw and the screw (10) 4 buckle, Through the nuclear transfer to insert the lock device (four), the

f冓 is called a spiral rotary lock mechanism, and the rotation angle of the lock mechanism cannot exceed the chat. The lock mechanism and the hook structure are simple, and can be produced by metal forming and stamping forming process, and the production efficiency is high. Also, an axial elastic mechanism is used between the lock 12 of the team and the heat sink 3, and the spring clip 20 (or spring) is passed between the lock 12 and the heat sink 1 2 3 to make the lock 12 axial elastic displacement 'to achieve axial elastic tension between the heat conducting core and the heat sink. Pure, there are many kinds of sheet structures, but the structure of the sun-flowered structure...the structure in which the fins 9 protrude from the side of the heat-conducting column 8 can be manufactured by using the squeezing technique, and the heat dissipation performance is the best, which is the preferred gift. Slice structure. The heat sink in ® 2 is a type of sun-like knot. The structure shown in Figures 12 and 13 is also a sunflower-like structure. 2 Early one sun flower type heat sink, its heat dissipation is limited, in order to improve ..., quantity (5) can be installed in the lamp _ set of multiple heat sinks ‘ several solar flower heat sinks assembled together ‘ each heat sink is equipped with a wick. In order to improve the heat dissipation, a convection hood 19 can be arranged above the heat sink, as shown in Fig. 7, using the chimney suction principle to increase the amount of natural convection air to improve heat dissipation. For the LED illuminating lamp with the plug-in rotary lock structure and the spiral rotary lock structure of the present invention, the taper of the cone heat-conducting core (the taper is defined as: the difference between the diameters of the two cross-section gardens and the distance between the two cross-section gardens) Than this, with the definition of taper in mechanical engineering

The value of the method should be considered from many aspects; the taper is too large, the contact pressure of the axial elastic force is also small, and the diameter of the rear end of the heat conducting core is also small, which is disadvantageous for setting the hook and the electrical connecting device, and the present invention considers The taper of the heat conducting core should not be greater than 1:5; if the taper of the heat conducting core is too small, the following problems will be caused: 1. The processing precision of the tapered column and the tapered hole is high, otherwise the axial compensation displacement is large, and the self-locking situation is easy to occur. 'gp heat conduction& is locked in the taper hole on the heat sink, it is not easy to disassemble. Therefore, the taper of the thermal core should not be less than 1:30. The present invention considers that the more reasonable taper of the heat conducting core should be 1:9 to 1:20. Special Description: [Simple Description of the Drawing] The LED core of the present invention includes a 〇LED core. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a latching mechanism using an axial rod and a lateral lock lever in accordance with a characteristic sectional view of an LED illumination lamp of the present invention. Figure 2 is a plan view of Figure 1. 3 is a schematic cross-sectional view of an LED illuminating lamp according to the present invention. 201202612. A locking mechanism using an axial rod and a lateral locking rod, the contact heat transmitting surface being a conical surface. Figure 4 is a schematic cross-sectional view of a LED illuminator in accordance with the present invention, employing a plug-in rotary latch mechanism and employing a coaxial electrical connector. Fig. 5 is a schematic view showing the structure of a wick in the LED illuminating lamp shown in Fig. 4, wherein the shackle on the wick and the heat conducting core are of a unitary structure. Fig. 6 is a schematic view showing the structure of the locker of Fig. 4, and the tongue on the locker adopts a shrapnel structure. Fig. 7 is a schematic cross-sectional view showing the outline of an LED illuminating lamp according to the present invention, using a plug-in rotary locking mechanism, and the electrical connection is made of an elastic contact type hook and a heat conducting core as two parts. Figure 8 is a view of the clasp in Figure 7. Fig. 9 is a schematic cross-sectional view showing the LED illuminating lamp according to the present invention, using a screw type rotary locking mechanism. Figure 10 is a schematic view showing the structure of the clasp in Figure 9. Figure 11 is a schematic view showing the structure of the locker of Figure 10. Figure 12 is a schematic illustration of a feature of a sun-flowered structure. Figure 13 is a schematic illustration of a feature of a sun-flowered structure. [Main component symbol description] ~ (l) LED core (2) heat conductive core (3) heat sink (4) sleeve rod (5) lateral lock lever (6) elastic device (7) wick cover (8) heat transfer column π

f SI 201202612 (9) Rib (10) long through hole (11) spring (12) latch (13) back cover (14) clasp (15) clasp (16) elastic electrode (17) Temperature detector (18) electrode plate (19) convection cover (20) spring washer m 12

Claims (1)

201202612 VII. Patent application scope: 1. · A kind of LED lighting lamp, including: heat sink and wick, wherein the wick is further provided with LED~ and heat conduction core, and the heat conduction anger is provided with a contact heat transfer surface, and the heat sink has a phase. Corresponding contact heat transfer surface, the wick and the heat sink adopt a fastening mechanism with a mounting rotation angle not exceeding Cong, and an axial elastic tensioning mechanism is also provided. 2. According to the scope of the patent application! The illuminating lamp, wherein the heat conducting core is provided with an axial rod extending from a center of the contact heat transfer surface on the heat conducting core. The axial rod is provided with a horizontal locking rod, and the heat sink is disposed on the lateral direction. The elongated through hole of the locking rod; the axial elastic tensioning device is disposed on the axial rod or the loose sheet, or the horizontal locking rod is an elastic rod. An LED lighting fixture having a heat sink, wherein the heat sink has a conical hole matched with a cone heat conducting core, and is provided with a lock II with a rotation angle of not more than 18 〇s, and the locker adopts a person The rotary lock structure or the spiral rotary lock structure; an axial elastic displacement connection mechanism is adopted between the lock and the heat sink, or a buckle on the locker adopts a spring-like structure. 4. The lighting fixture of (10) according to claim 3, characterized in that: the heat sink adopts a sun-like structure in which fins protrude from the side of the heat-conducting column. 5. The LED lighting fixture according to claim 3, characterized in that: in the heat-dissipating _-shaped hole, a temperature detector is disposed on the central axis. • The LED lighting anger 'includes a heat-conducting core and LED g, wherein the heat-conducting core adopts a cone structure, the LED core is disposed at the front end of the heat-conducting core, and the cone side is a contact heat-transfer surface, which is characterized by a heat-conducting core The taper of the cone is 1:5 1.30, and the rear end of the heat conducting core is provided with a hook which is matched with the plug of the plug-in rotary lock 13 201202612 structure or the screw-type rotary lock structure. The LED lighting wick according to claim 6, wherein the cone of the heat conducting core has a taper of 1:9 to 1:20. 8. The LED lighting wick according to item 6 of the patent application, characterized in that: the hook and the heat conducting core are integral structural parts manufactured by a hot die casting process. 9. The LEim wick according to item 6 of the scope of the patent application is characterized in that: the hook and the fresh guide are two parts, and are integrated by the connecting mechanism. 10. According to the ninth aspect of the patent application scope, the illuminating wick is characterized in that an axial elastic displacement connecting mechanism is formed between the 钧 and the heat conducting core, and a shrapnel structure is adopted.