WO2015051595A1

WO2015051595A1 - Led module

Info

Publication number: WO2015051595A1
Application number: PCT/CN2014/000892
Authority: WO
Inventors: 王丽娜; 王元成
Original assignee: 王丽娜
Priority date: 2013-10-11
Filing date: 2014-10-08
Publication date: 2015-04-16
Also published as: CN103557446A; CN103557446B

Abstract

An LED module comprises an LED (3), a PCB board (2), lenses (4), a lens mask (6) and an integrated aluminium heat-radiating block (1). The integrated aluminium heat-radiating block (1) is composed of a square fixed panel (11), connection components (12) and a heat-radiating plate (13) located thereon, wherein one connection component (12) is provided at the edge of each side of the top face of the square fixed panel (11), an electrical interface (121) having been subjected to an IP protection treatment is provided on each of the connection components (12), four electrical connection interfaces (21) at positions matching the electrical interfaces (121) on the connection components (12) and able to come into communication with the electrical interfaces (121) are provided on the PCB board (2); and four wiring positions are provided in the square fixed panel (11). The LED module has a novel structure and can be used in any combination, with a good waterproof property suitable for outdoor use.

Description

LED module

Technical field

The invention relates to the field of LED lighting fixtures.

Background technique

LED lighting has been widely used because of its energy saving and environmental protection advantages. The LED module is the most important component of the LED lamp. The biggest shortcoming of the existing LED module is that it cannot be changed. Once the product is formed, the shape and power cannot be adjusted. The brightness can only be adjusted by the brightness adjustment module provided in the circuit, that is, the brightness cannot be greatly increased. The need to increase the brightness can only be achieved by increasing the number of LED lights. Multiple LED lights are not connected separately, or are electrically connected together by exposed wires, and cannot be used as a unified whole. In addition, most of the LED market currently uses low-voltage LEDs. With the maturity of AC LED and DC high-voltage LED technology, AC LED and DC high-voltage LED technology will be widely used. Different types of LEDs have different driving voltage modes and LED rows. Different cloth methods, if you make a different PCB board and different lens cover for each type of LED, it is not only troublesome, but also will cause waste of materials.

Summary of the invention

The object of the present invention is to solve the deficiencies of the above existing LED modules, and to provide an LED module which has novel structure, can be freely combined, has good heat dissipation performance, and is suitable for outdoor use.

In order to achieve the above object, the present invention adopts the following technical solutions:

An LED module comprises an LED, a PCB board, a lens, a lens mask and an integral aluminum heat sink block. The LED is mounted on the PCB board, the PCB board is fixed on the integral aluminum heat sink block, and the lens is tightly mounted on the lens mask. The lens mask is fixed on the integral aluminum heat sink block, and a sealing waterproof ring is arranged between the lens mask and the integral aluminum heat sink block; the integrated aluminum heat sink block is composed of a square fixed panel and a connecting assembly and a heat sink thereon The heat sink and the connecting assembly are integrally connected with the top surface of the square fixing panel, the connecting assembly is at the edge of the top surface of the square fixing panel, and the PCB board is fixed on the bottom surface of the square fixing panel, and the square fixing panel top surface There is a connection assembly at the edge of each edge, and the connection assembly on the top surface of the square fixing panel is four, and the position of each connection assembly is in the middle of each side; each connection assembly The upper part is provided with an IP-protected electrical interface, and the PCB board is provided with four power-on interfaces that are matched with the electrical interfaces on the connection assembly and can be connected to the electrical interface; the square fixed panel is provided with 4 threading positions, the position of the threading position is between the electrical interface and the power-on interface; the four connecting assemblies are divided into two connecting assemblies 1 and two connecting assemblies 2, and the outer side of the connecting assembly 1 is provided a bracket corresponding thereto, the outer side of the connecting assembly 2 is provided with a card slot for accommodating the stud; at least one of the four threading positions is a threading through hole, and the electrical interface directly above the at least one threading through hole An electrical connector is disposed therein, and the electrical connector is connected to the power supply interface directly under the wire through the wire through hole; the remaining threading position is a threading card slot through which the impact can be penetrated.

Preferably, the top surface of the square fixing panel is square, the combination effect of the plurality of modules is the best, and the four directions can be arbitrarily combined.

Preferably, the LED brightness adjustment module is disposed on the PCB, and four power-on interfaces capable of controlling the LED switch and adjusting the brightness of the LED are provided on the PCB, and any power connection interface on a PCB board is connected, and all the PCB boards can be controlled. LED switch and brightness, easy to use; LED and PCB board are integrated to reduce power supply requirements and reduce unit size, which not only effectively reduces the power supply performance requirements, but also compresses the volume; IC chip on the PCB Control the working current and working heat of the LED through pulse width modulation, adjust the voltage regulation and constant current by changing the duty cycle, and automatically reduce the current when the internal temperature exceeds the set index to ensure the stable performance of the LED. The voltage regulation is implemented by changing the duty ratio, effectively reducing the voltage fluctuation and improving the LED constant current driving effect; the copper foil wire connected to the power supply on the PCB has a narrowest width of 2.5 mm or more, copper The foil wire is subjected to a current of at least 4.5 A, and the creepage distance is 0.8 mm, and the safety performance is good.

Preferably, the heat dissipation plate is a plurality of blocks arranged in parallel with each other, and the heat dissipation plate is divided into a long heat dissipation plate and a short heat dissipation plate according to different heights, and the sections of the long heat dissipation plate and the short heat dissipation plate are both narrow and wide, and the long heat dissipation plate has a shape of a long heat dissipation plate. The height and thickness are larger than the short heat sink. The outermost heat sink on the top of the square fixed panel is a long heat sink. The distance between adjacent heat sinks is 4-6MM. The purpose is to increase the heat dissipation area as much as possible. The distance between the boards is limited. It is impossible to use all the heat sinks with a long heat sink structure. That is, all the heat sinks can not be completed during the production. The short heat sinks can be used in the manufacturing range. The limit increases the heat dissipation area.

Preferably, the shape of the lens mask is a square matching the size of the square fixing panel, and the middle portion of the lens mask is convex downward with respect to the edge to form a cavity, and the edge of the lens mask is fixed on the edge of the bottom of the square fixing panel by screws, and is firmly mounted; There are airflow gaps at the edges of the four sides of the mask. The number, shape and position of the airflow gaps on the four sides are the same, and at least two airflow gaps are provided at the edges of each side edge. When two LED modules are docked, the two airflow gaps corresponding to the position shape are connected to form a convection space; the edge of the bottom of the lens mask is provided with a plurality of regularly arranged and downwardly protruding mounts, and the mount is integrated with the lens mask. The screw is fixed on the square fixing panel through the mounting seat, and the installation is firm; the groove on the lens mask and the square fixing panel is provided with a groove for accommodating the sealing waterproof ring, and the sealing waterproof ring is stuck in the groove, and the position of the sealing waterproof ring is at The inside of the screw increases the level of IP protection.

Preferably, the lens mask is provided with 12 lens mounting holes, 12 lenses are tightly mounted on the lens mounting holes, and 12 lenses are arranged in four arc-shaped lens strips of the same length, each of which is 5 The lenses are arranged; the number and arrangement positions of the LEDs on the PCB are matched with the lens, that is, one LED is disposed directly above each lens, and 12 LEDs are arranged into four arc-shaped LED light strips of the same length, which not only has good illumination effect. And it is convenient to replace the different voltage LEDs.

Preferably, the two sides of the electrical interface of the connecting assembly are respectively provided with connecting holes, and the connecting connecting plate is provided with a mounting connecting plate, and the screw is fixed in the connecting hole through the mounting connecting plate to facilitate installation and fixing of the entire LED module.

Preferably, the middle heat dissipating plate is provided with a mounting post with a screw hole integrally connected thereto, the screw hole opening is upward, the connecting plate is mounted on the mounting post, and the mounting screw is fixed on the mounting post through the connecting plate to facilitate the whole LED module. The installation is fixed.

An LED module adopting the above technical solution, the lens is tightly mounted on the lens mask, and a sealing waterproof ring is arranged between the lens mask and the integral aluminum heat sink block, and each connection assembly is provided with IP protection treatment The electrical interface, at least one of the four threading positions is a threading through hole, and the remaining threading position is a threading card slot that can be penetrated by impact, that is, the IP protection performance is good, and the IP protection level is at least 66, which is suitable for outdoor use. . The integrated aluminum heat sink has good heat dissipation performance, and the PCB board has four power supply interfaces that are matched with the electrical interfaces on the connection assembly and can communicate with the electrical interface, and the connection assembly and the PCB board on the square fixed panel are The power-on interface on the upper side realizes the expansion of the extended edge around the LED module to realize the combined conversion of different uses and different power levels, so as to facilitate the multi-purpose requirement of the consumer, that is, the multiple LED modules can be conveniently combined and combined, and not at the same time. The docking connection assembly can be used for mounting and fixing the LED module. The four connection assemblies are divided into two connection assemblies one and two connection assemblies. The LED modules can be sold and used individually. When the brightness needs to be increased, two identical LED modules can be docked, and one LED module is assembled. The protruding post on the one piece is inserted into the card slot on the connecting assembly 2 of the other LED module, and the connection strength of the two sets of LED modules is increased, in particular, the displacement of the two sets of LED modules can be prevented, and the two sets of LED modules are affected. The reliability of the connection. In summary, the LED module has the advantages of novel structure, free combination, and good waterproofness for outdoor use.

DRAWINGS

Figure 1 is a schematic exploded view of Embodiment 1 of the present invention.

Fig. 2 is a perspective view showing a first embodiment of the present invention.

Fig. 3 is a first schematic view of the integrated aluminum heat sink block of the first embodiment of the present invention.

Fig. 4 is a second schematic view of the integrated aluminum heat sink block of the first embodiment of the present invention.

Fig. 5 is a schematic view showing the assembly of a PCB board and an LED in Embodiment 1 of the present invention.

Fig. 6 is a first schematic view of a lens mask in the first embodiment of the present invention.

Fig. 7 is a second schematic view of a lens mask in the first embodiment of the present invention.

Fig. 8 is a perspective view showing a second embodiment of the present invention.

Fig. 9 is a perspective view showing a third embodiment of the present invention.

detailed description

A detailed description of the specific embodiments of the present invention will be described below with reference to Figs.

Example 1

An LED module as shown in FIG. 1-7 mainly includes an LED 3, a PCB board 2, a lens 4, a lens mask 6 and an integrated aluminum heat sink block 1.

The LED 3 is mounted on the PCB board 2. Specifically, the bottom of the LED 3 is integrally connected to the PCB board 2 to reduce the power supply requirement and reduce the unit volume, thereby effectively reducing the power supply performance requirements and compressing the volume. The IC chip 22 on the PCB 2 controls the operating current and the operating heat of the LED by pulse width modulation, and adjusts the regulation and constant current by changing the duty ratio.

The one-piece aluminum heat sink block 1 is composed of a square fixing panel 11 and a connection assembly 12 and a heat dissipation plate 13 thereon. The PCB board 2 is fixed on the bottom surface of the square fixing panel 11, and the bottoms of the heat dissipation board 13 and the connection assembly 12 are integrally connected with the top surface of the square fixing panel 11, and the connection assembly 12 is at the edge of the top surface of the square fixing panel 11. The PCB board 2 is provided with a power supply interface 21, and the connection assembly 12 is provided with an electrical interface 121 that can communicate with the power supply interface 21 and is subjected to IP protection processing.

The square fixing panel 11 is square, and a connecting assembly 12 is disposed at the edge of each side of the square fixing panel 11 . The connecting assembly 12 on the top surface of the square fixing panel 11 is four, and each connection assembly The position of the piece 12 is in the middle of each side, and the LED module can be docked in any direction on the 4 sides, which is most suitable for the form of multilateral docking.

Each of the connection assemblies 12 is provided with an electrical interface 121. The PCB board 2 is provided with four positions corresponding to the electrical interface 121 on the connection assembly 12, and the LED brightness adjustment module 23 is disposed on the PCB 2. The four power-on interfaces 21 on the PCB board 2 are all power-on interfaces that can control the LED switches and adjust the brightness of the LEDs, that is, any power-on interface 21 on a PCB board 2 can control all the LEDs on the PCB board 2 and Brightness, easy to use.

The square fixing panel 11 is provided with four threading positions, and the position of the threading position is between the electrical interface 121 and the power supply interface 21.

At least one of the four threading positions is a threading through hole 112. The electrical interface 121 directly above the at least one threading through hole 112 is provided with an IP protection-treated electrical connector. The electrical interface 121 has a circular shape, and the electrical connector has a cylindrical shape. The electrical connector is in the circular electrical interface, and the disassembly and assembly is very convenient. The electrical connector is connected through the wire through the through hole 112 to the power connection 21 directly under the wire. The IP protection of the electrical connector is in the electricity. A sealed waterproof gasket is added to the interface 121. The remaining threading position is a threading card slot 111 that can be penetrated by impact. When the two sets of LED modules are docked, the connection assembly 12 at the threaded through hole 112 can be used for docking, and the remaining connection assembly 12 is not used as a connector, so that no perforation is required, and a threading card that can be penetrated by impact is used. The structure of the slot 111 can effectively improve the dustproof and waterproof performance, that is, the level of IP protection is improved, and the strength of the threading card slot 111 that can be penetrated by the impact is much lower than the strength of the surrounding square fixing panel 11, and the appropriate impact is The permeable, slotted card slot 111 becomes a threaded through hole 112. When the consumer needs to use multiple LED modules for docking, the device can be used by itself, and the structure is reasonable and convenient to use.

The four connection assemblies 12 are divided into two connection assembly members 12a and two connection assembly members 12b, and the connection assembly member 12a and the connection assembly member 12b are disposed opposite to each other to connect the outer side of the assembly member 12a. The protruding post 12a1 is integrally connected thereto, and the outer side of the connecting assembly 2b is provided with a slot 12b1 for receiving the stud 12a1. The cross section of the stud 12a1 is semicircular, and the cross section of the slot 12b1 is with the stud 12a1. Matching semicircles. The LED module can be sold and used in a single manner. When the brightness needs to be increased, two identical LED modules can be docked, and the tab 12a1 on the connection assembly of one LED module is snapped into the card on the connection assembly 2 of the other LED module. In the slot 12b1, the connection strength of the two sets of LED modules is increased, in particular, the displacement of the two sets of LED modules can be prevented, and the reliability of the electrical connection of the two sets of LED modules is affected.

The two sides of the electrical interface 121 of the connecting assembly 12 are respectively provided with connecting holes 125 for assembling the connecting members for fixed installation of the entire LED module.

The heat dissipation plate 13 is a plurality of blocks arranged in parallel with each other. The heat dissipation plate 13 is divided into a long heat dissipation plate 131 and a short heat dissipation plate 132 according to the height, and the sections of the long heat dissipation plate 131 and the short heat dissipation plate 132 are both narrow and wide, and The height and thickness of the long heat dissipation plate 131 are larger than the short heat dissipation plate 132. The outermost heat dissipation plate of the square fixed panel top 11 is a long heat dissipation plate 131, and the distance between the adjacent heat dissipation plates 13 is 4-6 MM, and the purpose is to The heat dissipation area is increased. Due to the limitation between the adjacent heat dissipation plates 13, all the heat dissipation plates 13 cannot be configured with a long heat dissipation plate structure, that is, all the heat dissipation plates 13 are all completed by using the long heat dissipation plate 131. The addition of the short heat sink 132 maximizes the heat sink area within the scope of production manufacturability.

The lens mask 6 is fixed to the integral aluminum heat sink block 1, and a sealing waterproof ring 5 is disposed between the lens mask 6 and the integral aluminum heat sink block 1. The shape of the lens mask 6 is a square matching the square fixing panel 11, and the lens mask middle portion 61 is convex downward with respect to the edge to form a cavity, and the edge of the lens mask 6 is fixed to the edge of the bottom of the square fixing panel 11 by screws 66, specifically The edge of the bottom of the lens mask 6 is provided with a plurality of regularly arranged and downwardly protruding mounting seats 62. The mounting seat 62 is integrally connected with the edge of the lens mask 6, and the screw 66 is fixed to the square fixing panel 11 through the mounting seat 62. When the LED 3 or the lens 4 is adjusted, the lens mask 6 needs to be removed. Therefore, the manner in which the screw 66 is fixed is most suitable. In order to ensure the firmness of the mounting, the structure of the mounting seat 62 is used to fix the screw 66. A groove 65 for accommodating the sealing waterproof ring is disposed on the lens mask 6 at a joint with the square fixing panel 11. The sealing waterproof ring 5 is caught in the groove 65, and the position of the sealing waterproof ring 5 is located inside the screw 66, which can better The effect of waterproofing into the seal. The air gaps 63 are regularly disposed at the edges of the four side edges of the lens mask 6. The number, shape and position of the airflow gaps 63 on the four side edges are the same. When the two LED modules are docked, the position and shape correspond to each other. The two airflow gaps 63 are connected to form a convection space. When the module is connected to the module, the convection space between the two lens masks 6 is used for air convection, and at least two airflow gaps are provided at the edges of each side edge, so that the LED module There are at least two partial convection spaces at the junction, which are more effective for ceiling-mounted or housing-sealed products.

The lens 4 is hermetically mounted on the lens mask 6, and the lens mask 6 is provided with twelve lens mounting holes 64. The twelve lenses 4 are hermetically sealed on the lens mounting holes 64, and the twelve lenses 4 are arranged in four arcs of the same length. The lens strip has four curved lens strips connected end to end, and each curved lens strip is arranged by five lenses. The number and arrangement position of the LEDs 3 on the PCB board 2 are matched with the lens 4, that is, one LED 3 is disposed directly above each

lens

4, and 12 LEDs 3 are arranged in four arc-shaped LED light strips of the same length, and each curved LED light strip They are all arranged by 5 LED3s. The above 12 LEDs 3 are all low voltage DC LEDs. In order to realize the unification of different types of LED arrays, the LED module of this patent designs 12 low-voltage DC LEDs into four curved LED strips, so that four high-voltage LEDs in the same distance can be evenly replaced. The above-mentioned low-voltage DC LEDs, based on the arrangement of low-voltage LEDs currently widely used in the market, consider the use of addition and subtraction of connecting wires to change the arrangement of LEDs to achieve a layout suitable for DC high-voltage LED operation, when it is necessary to use DC For high-voltage LEDs, it is enough to use 4 LEDs. Use these 4 LEDs in equal position. The rest use pin or wire communication lines. For example, 48V/DC power supply for each module drives 12 3Vs with a single power of 1W. For low-voltage DC LEDs, the arrangement relationship is 12 strings. When using a single 54V high-voltage LED with a power of 3W and driving with AC 220V or DC 220V, the number of LEDs in each group of modules The amount becomes 4, and the 4 LEDs are stringed into a string, and the position must be placed properly. Otherwise, the layout will be beautiful and the illumination will be uniform.

The width and spacing requirements of copper foil conductors are different under different voltages and different power grades. When the power is small, the copper foil conductors can be thinner due to the small load. When the voltage is low, the conductor spacing can be smaller due to the small voltage difference. In order to achieve the compatibility of the same PCB board with different voltages and different power levels, the LED module of this patent specially designs the width and gap of the copper foil wire, the current carrying capacity of the copper foil wire and the thickness of the copper foil, the wire width and the working temperature. Etc. The creepage distance is related to the spacing of the wires and the dielectric constant of the material. For a common PCB board with a copper foil thickness of 1 ounce, when the working temperature is 20 degrees and the copper foil wire width is 0.254 mm, it can withstand a current of about 1.2 A, which is beneficial to multi-module series-parallel to achieve more than 120 W of the whole lamp. The current is withstand. The copper foil wire connected to the power supply of the LED module of the patent has a narrowest width of 2.5 mm or more, and can ensure a current of about 4.5 A. As for the creepage distance, the requirement for the ordinary electronic circuit is not high, and is larger than 0.2mm is enough, the creepage distance of this patent is 0.8mm, leaving enough margin to effectively avoid the current overload caused by the increased parallel combination of modules and effectively prevent the load voltage caused by the use of AC LED and high-voltage DC LED. The risk of creepage caused by the rise. The above special design realizes the compatibility assumption that different types of LEDs share a single PCB board sharing a set of lens covers, which facilitates production and reduces material costs.

The electrical interface 121 is subjected to IP protection processing, and the IP protection processing refers to processing conforming to the IP protection level. The IP protection processing mode of the electrical interface 121 is many. For example, a sealed waterproof gasket is added around the electrical connector, or at the electrical interface 121. The outer cover is provided with the closed cover of the electrical interface 121, and the above-mentioned structure of the threaded card slot 111 which can be penetrated by the impact belongs to the IP protection processing mode of the electrical interface 121, and the LED module with the above technical solution has at least IP protection level. Reached 66. When the electrical interface 121 is not used for docking, the opening thereof is generally sealed by a cover. In particular, the unused electrical interface 121 corresponding to the threaded through hole 112 needs to be sealed by using a cover. There are many types of the above-mentioned electrical connectors, and the terminals are commonly used.

Example 2

An LED module as shown in FIG. 8 has the same structure as the LED module of Embodiment 1, and a part of the structure and function are added on the basis of Embodiment 1, in particular, the intermediate heat dissipation plate 13 is provided with The integral mounting post 133 with a screw hole has a screw hole opening upward, and a mounting plate 134 is mounted on the mounting post 133. The mounting screw is fixed on the mounting post 133 through the connecting plate 134, and the connecting plate 134 can be used for mounting and fixing the entire LED module. . An electrical connector 124 is disposed on the connection assembly 12 for the docking LED module. The electrical connector 124 is subjected to IP protection processing, that is, a sealing waterproof gasket is disposed above and below the electrical connector 124, and is additionally disposed on the connection assembly 12 not used for the docking portion. The electrical interface 121 is plugged with a cover 122.

Example 3

An LED module as shown in FIG. 9 has the same structure as the LED module of Embodiment 1, and a part of the structure and function is added to the embodiment 1. Specifically, the connection assembly member 12 is provided with a mounting connection plate 123. The screw is fixed in the connecting hole 125 through the mounting connecting plate 123, and the connecting plate 123 is opened. The connection assembly 12 does not function as a docking function, and can be used for mounting and fixing the entire LED module by mounting the connection plate 123. In addition, the middle heat dissipation plate 13 is provided with a mounting post 133 with a screw hole integrally connected thereto, and the screw hole opening is upward, and the mounting post 133 can be used for fixing other manners of the LED module. An electrical connector 124 is disposed on the connection assembly 12 for the docking LED module. The electrical connector 124 is subjected to IP protection processing, that is, a sealing waterproof gasket is disposed above and below the electrical connector 124.

The above three embodiments are only preferred embodiments of the present patent. For example, the four threading positions in the first embodiment may be all of the threading through holes 112 or partially the threading through holes 112. All the parts of the LED module in the above embodiment are very good in dustproof and waterproof, and the IP protection level is high, which fully meets the conditions for outdoor use, that is, it can be directly used outdoors without adding a rainproof cover. Through the connection assembly 12 at the side edge of the bottom surface of the square fixing panel 11 and the power supply interface 21 on the PCB board 2 matched thereto, the expansion edge is left around the LED module to realize the combined conversion of different uses and different power levels for convenience. Consumers' multi-purpose requirements, that is, multiple LED modules can be conveniently The blocks are combined for docking, and the connection assembly that is not in the docking position can be used for mounting and fixing the LED module.

When the LED module is used alone, the switch and brightness adjustment of the LED 3 are controlled by the IC chip on the PCB board 2, and the light emitted by the LED 3 is emitted through the lens 4. The heat generated when the LED 3 works is dissipated by the integrated aluminum heat sink block 1, the PCB board The IC chip 22 on the 2 controls the working current of the LED and the working heat of the LED through the pulse width modulation technology, and adjusts the voltage regulation and the constant current by changing the duty ratio, that is, the voltage regulation and the constant current are realized by the pulse width modulation technology PWM. The IC chip monitors the LED operating temperature and realizes the temperature protection function. When the internal temperature exceeds the set index, the current is automatically reduced to ensure the stable performance of the LED. The voltage regulation is implemented by changing the duty ratio, thereby effectively reducing the voltage fluctuation. The LED constant current driving effect is improved, specifically, an over-temperature protection device is integrated in the IC chip, and after the temperature-sensitive device senses that the temperature exceeds a certain value, even if the connected triode is turned on, the operating current is reduced by shunting, thereby realizing Desuperheating; pulse width modulation technology PWM adjusts the bias of the transistor base or the gate of the MOS transistor according to the load change to realize the crystal Or MOS is a time-varying analog control mode, this embodiment enables the power supply output voltage remains constant when the operating conditions change. When two or more sets of LED modules are docked, adjacent LED modules are connected at respective connection assemblies 12 through connectors, and the adjacent LED modules are electrically connected through the connectors and the electrical interfaces, thereby providing the freedom of the utility modules. combination.

Claims

An LED module comprises an LED, a PCB board, a lens, a lens mask and an integral aluminum heat sink block. The LED is mounted on the PCB board, the PCB board is fixed on the integral aluminum heat sink block, and the lens is tightly mounted on the lens mask. The lens mask is fixed on the integral aluminum heat sink block, and a sealing waterproof ring is arranged between the lens mask and the integral aluminum heat sink block; the integrated aluminum heat sink block is composed of a square fixed panel and a connecting assembly thereon The heat sink and the connecting assembly are integrally connected with the top surface of the square fixing panel, the connecting assembly is at the edge of the top surface of the square fixing panel, and the PCB board is fixed on the bottom surface of the square fixing panel, the square fixing panel A connection assembly is arranged at the edge of each side of the top surface, and the connection assembly on the top surface of the square fixing panel is four, and each connection assembly is located at the middle of each side; The connection assembly is provided with an IP-protected electrical interface, and the PCB board is provided with four power-on interfaces that are matched with the electrical interfaces on the connection assembly and can be connected to the electrical interface; There are four threading positions on the panel, and the position of the threading position is between the electrical interface and the power supply interface; at least one of the four threading positions is a threading through hole, and an electrical connection is provided in the electrical interface directly above the at least one threading through hole. The head, the electrical connector is connected to the power-on interface directly under the wire through the wire through-hole; the remaining threading position is a threading card slot through which the impact can be penetrated; the four connection assemblies are divided into two connection assemblies. And two connecting assemblies 2, the outer side of the connecting assembly 1 is provided with a stud integrally connected thereto, and the outer side of the connecting assembly 2 is provided with a card slot for accommodating the stud.
An LED module according to claim 1, wherein the top surface of the square fixing panel has a square shape.
The LED module according to claim 1, wherein the LED brightness adjustment module is disposed on the PCB, and four power-on interfaces capable of controlling the LED switch and adjusting the brightness of the LED are disposed on the PCB; the LED and the PCB are connected In one piece, the IC chip on the PCB board controls the working current and working heat of the LED through pulse width modulation, and adjusts the voltage regulation and constant current by changing the duty ratio; the copper foil wire connected to the power supply on the PCB board is at the narrowest point. The width is above 2.5mm, the copper foil wire is subjected to at least 4.5A, and the creepage distance is 0.8mm.
The LED module according to claim 1, wherein the heat dissipation plates are arranged in parallel with each other, and the heat dissipation plates are divided into a long heat dissipation plate and a short heat dissipation plate according to different heights, and the sections of the long heat dissipation plate and the short heat dissipation plate are both In the shape of a narrow and wide width, the height and thickness of the long heat dissipation plate are larger than the short heat dissipation plate, and the outermost heat dissipation plate at the top of the square fixed panel is a long heat dissipation plate, and the distance between adjacent heat dissipation plates is 4-6 mm.
The LED module according to claim 1, wherein the lens mask shape is a square matching the size of the square fixing panel, and the middle portion of the lens mask is convex downward with respect to the edge to form a cavity, and the edge of the lens mask is fixed by screws. The square is fixed on the bottom of the panel.
The LED module of claim 1 , wherein the edges of the four sides of the lens mask are regularly provided with air flow gaps, and the number, shape and position of the air gaps of the four side edges are the same; There are at least 2 airflow gaps at the edges of each side.
The LED module of claim 1 , wherein the edge of the bottom of the lens mask is provided with a plurality of regularly arranged and downwardly protruding mounting seats, the mounting seat is integrally connected with the lens mask, and the screw passes through the mounting seat. It is fixed on the square fixing panel; the groove on the lens mask and the square fixing panel is provided with a groove for accommodating the sealing waterproof ring, and the sealing waterproof ring is caught in the groove, and the position of the sealing waterproof ring is inside the screw.
The LED module according to claim 1, wherein the lens mask is provided with 12 lens mounting holes, 12 lenses are tightly mounted on the lens mounting holes, and 12 lenses are arranged in four arcs of the same length. Lens strip, each curved lens strip is arranged by 5 lenses; the number and arrangement position of the LEDs on the PCB are matched with the lens, that is, one LED is arranged directly above each lens, and 12 LEDs are arranged in 4 lengths. The same curved LED strip.
An LED module according to claim 1, wherein two sides of the electrical interface of the connecting assembly are respectively A connecting hole is provided, and a connecting connecting plate is arranged on the connecting assembly, and the screw is fixed in the connecting hole through the mounting connecting plate.
The LED module according to claim 1, wherein the intermediate heat dissipation plate is provided with a mounting post with a screw hole integrally connected thereto, the screw hole opening is upward, the connecting plate is mounted on the mounting post, and the mounting screw is passed through. The connecting plate is fixed to the mounting post.