CN201096291Y - LED street lamp body - Google Patents

Abstract

The utility model relates to a LED street lamp especially relates to a LED street lamp body. The LED street lamp body is characterized in that; the device comprises a head section, a middle section and a tail section, wherein the head section is in butt joint with the middle section, and the other end of the middle section is in butt joint with the tail section; a sealing gasket is arranged between the head section and the middle section, and the head section is connected with the middle section through a fastener; a sealing gasket is arranged between the tail section and the middle section, and the tail section is connected with the middle section through a fastener; the middle section is a section bar, and the different positions of the middle section along the length direction of the section bar have the same cross section; the profile is provided with a substrate which is flat and extends along the length direction of the profile, and the substrate is provided with two surfaces, a front surface and a back surface; two edges of the front surface are respectively provided with a side plate, and the back surface is provided with a plurality of radiating fins; the utility model provides a modular assembled LED street lamp body with good heat dispersion to different appearance specification products can share a set of mould.

Description

LED street lamp body

technical field

The utility model relates to an LED street lamp, in particular to a lamp body of an LED street lamp.

Background technique

LED street lights not only have the characteristics of good chroma, maintenance-free, and long life, but more importantly, they are more energy-efficient than traditional street lights. LED street lamps replace traditional street lamps, which is a revolution in public utilities. At present, high-power LED street lamps are in the test or trial production stage, and many international lighting industry giants have also set foot in high-power LED street lamps, but there are almost no formal applications. Experimenters or trial users often use lamp bodies similar to ordinary street lamps, and cooperate with fans to dissipate heat. The heat dissipation effect of the fan is not only unstable, but also the life of the fan is low, consumes energy, and requires frequent maintenance. Traditional street lamps, no matter metal stamping or die-casting lamp body, require special molds for processing each shape and specification of the product, which will increase the manufacturing cost virtually and limit the promotion and application of high-power LED street lamps.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a modularized assembled LED street lamp body which has good heat dissipation performance and can share a set of molds for products with different shapes and specifications.

The purpose of this utility model can be realized through the following technical solutions:

The LED street lamp body is characterized in that it includes a head section, a middle section, and a tail section. The firmware is connected to the middle section; there is a gasket between the tail section and the middle section, and the tail section is connected to the middle section through fasteners; the middle section is a profile, which has the same cross section at different positions along the length direction of the profile; the profile has a base plate, The base plate is in the shape of a flat plate, and the base plate extends along the length of the profile. The base plate has two surfaces, the front and the back; the two edges of the front are respectively provided with side plates, and several cooling fins are set on the back; the head section has a first horizontal plate, the first The transverse plate is arranged at one end abutting with the middle section; the tail section has a second transverse plate, and the second transverse plate is arranged at an end abutting with the middle section; the first transverse plate, the second transverse plate, the side plates at the front two edges of the middle section, The front defines a cavity altogether, the front of the middle section constitutes the bottom of the cavity, the first horizontal plate, the second horizontal plate, and the side plates on the two edges of the front of the middle section form the four walls of the cavity, and the end of the four walls of the cavity away from the bottom is set There are steps for accommodating the lampshade; the head section has a section of tube, the axis of the tube is perpendicular to the first horizontal plate, the first horizontal plate is provided with an outlet hole leading to the inside of the tube, and the side wall of the tube has a threaded hole passing through the tube wall; The head section, middle section and tail section are all made of heat-conducting materials.

The lamp body of the LED street lamp is characterized in that the head section and the tail section are tightened and connected by screws, and the screws are arranged in the gaps between the cooling fins.

The lamp body of the LED street lamp is characterized in that the outer wall of the tube has protruding ribs, the ribs are arranged along the axial direction, and the threaded holes are arranged on the ribs.

The LED street lamp body is characterized in that the side plate in the middle section extends along the length direction of the profile, and the side plates on the two sides are arranged symmetrically. The cross section of the side plate is hook-shaped, and the root of the hook is set on the edge of the front. Set opposite to each other; one end of the hook tip facing the front has a first plane parallel to the front, and the opposite hook tip has a second plane perpendicular to the first plane, the second plane is perpendicular to the front, and the second plane is jointly defined by the first plane Out of the first edge, the second plane and the third plane jointly define the second edge, the third plane is parallel to the first plane, the third plane is farther away from the front than the first plane, and the third plane is in common with the fourth plane. A right angle is defined, the fourth plane is set parallel to the second plane, and the fourth plane is farther away from the hook tip than the second plane; the third plane and the fourth plane jointly define the above-mentioned steps; the cooling fin in the middle section is also plate-shaped , the heat dissipation fins are arranged vertically to the base plate, the heat dissipation fins extend along the length direction of the profile, the heat dissipation fins are arranged in parallel, and the first heat dissipation fin and the last heat dissipation fin are respectively arranged on the two edges of the reverse side.

The LED street lamp body is characterized in that: the side of the first horizontal plate facing the middle section has two protruding positioning plates, and the two positioning plates are respectively located inside the two hook-shaped side plates and placed in the hooks of the side plates; the second horizontal plate There are two protruding positioning plates on the side facing the middle section, and the two positioning plates are respectively located inside the two hook-shaped side plates and placed in the hooks of the side plates; the front of the middle section is provided with several circular holes, and the holes are close to one of the front The side communicates with the cavity.

The LED street lamp body is characterized in that: the head section is provided with heat dissipation fins, which are arranged in the same direction as the heat dissipation fins in the middle section, and the head section has two heat dissipation fins, which have the same cross-sectional shape as the two heat dissipation fins on the second most side of the middle section; The two heat dissipation fins of the head section are connected with the two heat dissipation fins on the second most side of the middle section; the heat dissipation fins of the head section are far away from one end of the middle section, and there is a chamfer between the top surface and the side surface; The cooling fins in the middle section are arranged in the same direction, and there are two cooling fins in the tail section, which have the same cross-sectional shape as the two cooling fins on the second most side of the middle section; the two cooling fins in the tail section are connected with the two cooling fins on the second most side of the middle section Setting; the cooling fin of the tail section is away from the end of the middle section, and there is a chamfer between the top surface and the side surface;

The LED street lamp body is characterized in that: the head section and the tail section are also provided with heat dissipation fins, and are arranged in the same direction as the heat dissipation fins in the middle section, and have the same cross-sectional shape as the heat dissipation fins in the middle section; the heat dissipation fins in the head section are far away from the middle section There is a chamfer between the top surface and the side surface at one end; the end of the heat dissipation fin of the tail section is away from the middle section, and there is a chamfer between the top surface and the side surface.

The LED street lamp body is characterized in that the surface of the heat dissipation fin is provided with several protruding heat dissipation ribs along the length direction of the profile.

The LED street lamp body is characterized in that: the head section and the tail section are made of aluminum or aluminum alloy through die-casting, the middle section is made of aluminum or aluminum alloy profile; the sealing gasket is made of heat-conducting silica gel.

The LED street lamp body is characterized in that the head section and the tail section are tightened and connected by screws, and the screws are arranged in the gaps between the cooling fins; the outer wall of the tube has protruding ribs, and the ribs are arranged along the axial direction. The holes are set on the edge; the side plate in the middle section extends along the length direction of the profile, and the side plates on the two sides are arranged symmetrically. One end of the hook tip facing the front has a first plane parallel to the front, and the opposite hook tip has a second plane perpendicular to the first plane, the second plane is perpendicular to the front, and the second plane and the first plane jointly define the first plane. The second plane and the third plane jointly define the second edge, the third plane is parallel to the first plane, the third plane is farther from the front than the first plane, and the third plane and the fourth plane jointly define a right angle , the fourth plane is set parallel to the second plane, and the fourth plane is farther away from the hook point than the second plane; the third plane and the fourth plane jointly define the step; the heat dissipation fin in the middle section is also plate-shaped, and the heat dissipation fin It is arranged perpendicular to the base plate, and the heat dissipation fins extend along the length direction of the profile. The heat dissipation fins are arranged in parallel, and the first heat dissipation fin and the last heat dissipation fin are respectively arranged on the two edges of the reverse side; the side of the first horizontal plate facing the middle section has two Protruding positioning plates, the two positioning plates are respectively located inside the two hook-shaped side plates, placed in the hooks of the side plates; the side of the second horizontal plate facing the middle section has two protruding positioning plates, and the two positioning plates are respectively located on the two hooks The inner side of the side plate is placed in the hook of the side plate; the front of the middle section is provided with several circular holes, and the side of the hole near the front is connected with the cavity; The heat dissipation fins are arranged in the same direction, and the head section has two heat dissipation fins, which have the same cross-sectional shape as the two heat dissipation fins on the second most side of the middle section; the two heat dissipation fins on the head section are docked with the two heat dissipation fins on the second most side of the middle section; The heat dissipation fins of the head section are far away from the end of the middle section, and there is a chamfer between the top surface and the side; The two cooling fins on the side have the same cross-sectional shape; the two cooling fins on the tail section are connected to the two cooling fins on the second most side of the middle section; the cooling fins on the tail section are far away from the end of the middle section, and there is an inverted The surface of the cooling fin is provided with several protruding cooling ribs along the length of the profile; the head and tail sections are made of aluminum or aluminum alloy by die-casting, the middle section is made of aluminum or aluminum alloy profiles; the gasket is made of heat-conducting silica gel into.

The LED street lamp body involved in the utility model, the head section and the tail section can be made into standard modules, which are suitable for products of different specifications in the same width series, while the middle section adopts profiles, and along the length direction, different positions have the same horizontal Cross-section, so it can be cut into different lengths according to needs, and combined with the head section and tail section to form LED street light bodies of different specifications. In the LED street lamp body involved in the utility model, an LED lamp combination is arranged in the cavity, and a lampshade is arranged on the steps of the side wall of the cavity. The combination of LED lights can be close to the bottom of the cavity (that is, the front of the middle section), and the heat generated when the combination of LED lights is working is transferred to the body of the LED street light. The head section, middle section and tail section of the LED street lamp body involved in the utility model are all made of heat-conducting materials, and several heat dissipation fins are arranged on the reverse side of the middle section. Dissipate heat in time. Compared with the prior art, the head section, middle section, and tail section of the LED street lamp body involved in the utility model are arranged in a modular combination mode, so the same set of molds can manufacture products of various specifications in the same width series, which reduces production costs , and material reserves are conducive to the promotion and application of LED street lights. Compared with the prior art, the LED street lamp body involved in the utility model adopts heat-conducting materials, and the LED lamp combination is directly installed on the front of the middle substrate, and the cooling fins on the reverse side can achieve good heat dissipation effect without a fan. The existing technology has the characteristics of maintenance-free, long life and stable heat dissipation effect.

Description of drawings

Fig. 1 is a schematic diagram of the head section of the first embodiment of the utility model.

Fig. 2 is a schematic diagram of the tail section of the first embodiment of the utility model.

Fig. 3 is a schematic diagram of the middle section of the first embodiment of the present invention.

Fig. 4 is a schematic diagram of the gasket of the first embodiment of the utility model.

Fig. 5 is an exploded schematic view of the first embodiment of the utility model

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings.

The first embodiment of the utility model is a high-power LED street lamp body, referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the LED street lamp body includes a head section 101, a middle section 102, and a tail section 103 , the head section 101 is docked with the middle section 102, and the other end of the middle section 102 is docked with the tail section 103; a gasket 104 is arranged between the head section 101 and the middle section 102, and the head section 101 is connected with the middle section 102 by screws 105; the tail section 103 A sealing gasket 106 is arranged between the middle section 102, and the tail section 103 is connected with the middle section 102 by screws 105; the middle section 102 is a profile, and along the length direction of the profile, different positions have the same cross-section; the profile has a base plate 1021, and the base plate 1021 is Flat plate, the base plate 1021 extends along the length direction of the profile, the base plate 1021 has two faces, the front face 1022 and the back face; Horizontal plate 1011, the first horizontal plate 1011 is arranged on an end docked with the middle section 102; the tail section 103 has a second horizontal plate 1031, and the second horizontal plate 1031 is arranged at an end docked with the middle section 102; the first horizontal plate 1011, the second Horizontal plate 1031, the side plate 1024 of the front 1022 two edges of middle section 102, the front 1022 of middle section 102 define a cavity altogether, the front 1022 of middle section 102 constitutes the bottom of cavity, the first horizontal plate 1011, the second horizontal 1031 plate, The side plates 1024 on the two edges of the front side 1022 of the middle section 102 form the four walls of the cavity, and the end of the four walls of the cavity away from the bottom is provided with a step for accommodating the lampshade. In this embodiment, the steps of the four side walls constitute a stop for accommodating the lampshade. Mouth; the head section 101 has a section of pipe 1012, the axis of the pipe 1012 is perpendicular to the first horizontal plate 1011, and the first horizontal plate 1011 is provided with an outlet hole leading to the inside of the pipe 1012. In this embodiment, an outlet hole is also installed The waterproof joint prevents water or water vapor from entering the cavity, causing a short circuit; the side wall of the pipe 1012 has a threaded hole 1013 passing through the pipe wall; the head section 101, the middle section 102, and the tail section 103 are all made of heat-conducting materials. The thermal conductive material guides the aluminum material with good thermal performance; in the LED street lamp body of this embodiment, the head section 101 and the tail section 103 are tightly connected by screws, and the screws are arranged in the gaps between the cooling fins 1023, which are not shown in Figure 5 Out of this screw, the hole 1032 at the top of the tail section 103 is used to wear the screw. In this embodiment, the head section 101 is provided with a threaded hole corresponding to the hole 1032 for screwing in the screw. Of course, the top of the head section 101 can also be used. For the hole corresponding to the tail section 103, use a bolt to pass through the two holes and lock it with a nut. The purpose of setting the screw or bolt here is to improve the stress of the screw between the head section 101 and the middle section 102, especially It is more necessary for the LED street lamp body with a long effective middle section 102. In this embodiment, there is one tension screw between the head section 101 and the tail section 103, and three or more can be used if necessary; referring to Fig. 1, this implementation In the example, the outer wall of the pipe 1012 has a protruding edge 1014, and the edge 1014 is arranged in the axial direction, and the threaded hole 1013 is arranged on the edge 1014; the side plate 1024 of the middle section extends along the length direction of the profile, and the side plates 1024 on both sides are symmetrical Setting, the cross-section of side plate 1024 is hook shape, and the root of hook is arranged on the edge of front 1022, and two side plates 1024 hook points are oppositely arranged; One end of hook point towards front 1022 has the first plane parallel with front, the opposite hook The tip has a second plane perpendicular to the first plane, the second plane is perpendicular to the front, the second plane and the first plane jointly define the first edge, the second plane and the third plane jointly define the second edge, and the second plane defines the second edge together with the third plane. The three planes are parallel to the first plane, the third plane is farther away from the front than the first plane, the third plane and the fourth plane jointly define a right angle, the fourth plane is set parallel to the second plane, and the fourth plane and the second plane Far away from the hook tip; the third plane and the fourth plane jointly define the step; the heat dissipation fin 1023 in the middle section is also plate-shaped, the heat dissipation fin 1023 is vertically arranged with the base plate 1021, and the heat dissipation fin 1023 extends along the length direction of the profile. The heat dissipation fins 1023 are arranged in parallel, and the first heat dissipation fin and the last heat dissipation fin are respectively arranged on the two edges of the reverse side; referring to FIG. The first positioning plate 1015 is respectively positioned at the inner side of the two hook-shaped side plates 1024, placed in the hook of the side plate 1024, and plays the role of a positioning pin when the head section 101 and the middle section 102 are assembled; A protruding positioning plate 1033, two positioning plates are respectively located in the inner side of the two hooked side plates 1024, placed in the hook of the side plate 1024; One side communicates with the cavity, and the hole 1025 is a threaded bottom hole for the connection between the head section 101 and the tail section 103 and the middle section 102. The purpose is to facilitate the assembly operation; Section 103 is also provided with a corresponding hole 1034 at the corresponding place for screw penetration; the head section 101 is provided with heat dissipation fins 1017, and is arranged in the same direction as the heat dissipation fins 1023 of the middle section 102, and the head section 101 has two heat dissipation fins 1017, and The two heat dissipation fins on the second most side of 102 have the same cross-sectional shape; the two heat dissipation fins 1017 of the head section 101 are connected to the two heat dissipation fins on the second most side of the middle section 102; the heat dissipation fins 1017 of the head section 101 are far away from the end of the middle section 102 , there is a chamfer between the top surface and the side; the tail section 103 is also provided with heat dissipation fins 1035, and is set in the same direction as the heat dissipation fins 1023 of the middle section 102, and the tail section 103 has two heat dissipation fins, which are connected to the two sides of the middle section 102. The heat dissipation fins have the same cross-sectional shape; the two heat dissipation fins 1035 of the tail section 103 are connected to the two heat dissipation fins on the second most side of the middle section; There are chamfers between them; the head section 101 and the tail section 102 are made of aluminum through die-casting, the middle section 102 is made of aluminum profiles; the gasket 104 is made of heat-conducting silica gel.

The second embodiment of the utility model is also a high-power LED street lamp body, which differs from the first embodiment of the utility model in three points. Good aluminum alloy material; the second is that the heat dissipation fins on the head and tail sections have the same cross-sectional shape as the heat dissipation fins on the middle section. The third is that the surface of the heat dissipation fin is provided with several protruding heat dissipation ribs along the length direction of the profile.

The above embodiments are only two preferred implementation modes. All equivalent changes made to the shape, quantity, and head section and tail section structure within the scope of the claims of the utility model all belong to the protection scope of the utility model. .

Claims (10)

1. a LED road lamp body is characterized in that;

Comprise head section, stage casing, rear, the head section is docked setting with the stage casing, and the other end in stage casing docks setting with rear; Be provided with sealing gasket between head section and the stage casing, the head section is connected with the stage casing by securing member; Be provided with sealing gasket between rear and the stage casing, rear is connected with the stage casing by securing member;

The stage casing is a kind of section bar, and along the profile length direction, diverse location has identical cross section; Section bar has substrate, and substrate is tabular, and substrate extends along the profile length direction, and substrate has two faces, obverse and reverse; Two positive edges are provided with side plate respectively, and several heat radiation wings are set on the reverse side;

The head section has first transverse slat, and first transverse slat is arranged on an end that docks with the stage casing; Rear has second transverse slat, and second transverse slat is arranged on an end that docks with the stage casing; First transverse slat, second transverse slat, the side plate at positive two edges, stage casing, the front in stage casing define a cavity altogether, the front in stage casing constitutes the end of cavity, the side plate at first transverse slat, second transverse slat, positive two edges, stage casing constitutes the wall of cavity, and the cavity wall is provided with the step that is used for ccontaining lampshade away from an end at the end;

The head section has one section pipe, and the axle center of pipe is vertical with first transverse slat, and first transverse slat is provided with a wire hole that leads in the pipe, and the sidewall of pipe has the screwed hole that connects tube wall;

Head section, stage casing, rear all adopt Heat Conduction Material to make.

2. LED road lamp body according to claim 1 is characterized in that, is connected by the screw tension between head section and the rear, and screw is arranged in the space of dispelling the heat between wing.

3. LED road lamp body according to claim 1 is characterized in that, the outer wall of pipe has the rib of projection, and rib is provided with vertically, and described screwed hole is arranged on the rib.

4. according to the described LED road lamp body of aforementioned any claim, it is characterized in that the side plate in stage casing extends along the profile length direction, the side plate on two limits is symmetrical arranged, the cross section of side plate is hook-shaped, and the root of hook is arranged on positive edge, and two side plate bills are provided with in opposite directions; The end of bill towards the front has and the positive first parallel plane, bill place in opposite directions has second plane vertical with first plane, second plane is with positive vertical, second average with first plane define first rib jointly, second plane defines second rib jointly with the 3rd plane again, the 3rd plane and first plane parallel, the 3rd plane is compared away from the front with first plane, the 3rd plane defines the right angle jointly with Siping City's face again, Siping City's face and the second plane parallel setting, Siping City's face is compared away from bill with second plane; The 3rd plane and Siping City's face define described step jointly; The heat radiation wing in stage casing also is tabular, and wing is vertical with substrate is provided with in heat radiation, and the heat radiation wing extends along the profile length direction, be arranged in parallel between each heat radiation wing, and first heat radiation wing and last wing that dispels the heat is arranged at two edges of reverse side respectively.

5. LED road lamp body according to claim 4 is characterized in that; The location-plate that the one side of first transverse slat towards the stage casing has two projections, two location-plates lay respectively at two hook-shaped side plate inboards, place in the hook of side plate; The location-plate that the one side of second transverse slat towards the stage casing has two projections, two location-plates lay respectively at two hook-shaped side plate inboards, place in the hook of side plate; The front in stage casing is provided with several circular holes, and the hole is communicated with described cavity near a positive side.

6. LED road lamp body according to claim 4 is characterized in that; Head section is provided with the heat radiation wing, and is provided with in the same way with the heat radiation wing in stage casing, and the head section has two heat radiation wings, with the stage casing two wings that dispel the heat of two sides have identical cross sectional shape; Setting is docked in two heat radiation wings of head section and stage casing two wings that dispel the heat of two sides; The heat radiation wing of head section has chamfering away from an end in stage casing between end face and the side; Rear also is provided with the heat radiation wing, and is provided with in the same way with the heat radiation wing in stage casing, and rear has two heat radiation wings, with the stage casing two heat radiation wings of two sides have identical cross sectional shape; Setting is docked in two of rear heat radiation wings and stage casing two wings that dispel the heat of two sides; The heat radiation wing of rear has chamfering away from an end in stage casing between end face and the side.

7. LED road lamp body according to claim 4 is characterized in that; Also be provided with the heat radiation wing on head section and the rear, and be provided with in the same way, and have identical cross sectional shape with the heat radiation wing in stage casing with the heat radiation wing in stage casing; The heat radiation wing of head section has chamfering away from an end in stage casing between end face and the side; The heat radiation wing of rear has chamfering away from an end in stage casing between end face and the side.

8. LED road lamp body according to claim 4 is characterized in that; The surface of heat radiation wing is provided with the heat radiation rib of several projections along the profile length direction.

9. LED road lamp body according to claim 1 is characterized in that; Head section and rear are that aluminum or aluminum alloy is made by the die casting mode, and the stage casing is the aluminum or aluminum alloy section bar; Sealing gasket is that heat conductive silica gel is made.

10. LED road lamp body according to claim 1 is characterized in that; Is connected by the screw tension between head section and the rear, screw is arranged in the space of dispelling the heat between wing; The outer wall of pipe has the rib of projection, and rib is provided with vertically, and described screwed hole is arranged on the rib; The side plate in stage casing extends along the profile length direction, and the side plate on two limits is symmetrical arranged, and the cross section of side plate is hook-shaped, and the root of hook is arranged on positive edge, and two side plate bills are provided with in opposite directions; The end of bill towards the front has and the positive first parallel plane, bill place in opposite directions has second plane vertical with first plane, second plane is with positive vertical, second plane and first plane define first rib jointly, second plane defines second rib jointly with the 3rd plane again, the 3rd plane and first plane parallel, the 3rd plane is compared away from the front with first plane, the 3rd plane defines the right angle jointly with Siping City's face again, Siping City's face and the second plane parallel setting, Siping City's face is compared away from bill with second plane; The 3rd plane and Siping City's face define described step jointly; The heat radiation wing in stage casing also is tabular, and wing is vertical with substrate is provided with in heat radiation, and the heat radiation wing extends along the profile length direction, be arranged in parallel between each heat radiation wing, and first heat radiation wing and last wing that dispels the heat is arranged at two edges of reverse side respectively; The location-plate that the one side of first transverse slat towards the stage casing has two projections, two location-plates lay respectively at two hook-shaped side plate inboards, place in the hook of side plate; The location-plate that the one side of second transverse slat towards the stage casing has two projections, two location-plates lay respectively at two hook-shaped side plate inboards, place in the hook of side plate; The front in stage casing is provided with several circular holes, and the hole is communicated with described cavity near a positive side; Head section is provided with the heat radiation wing, and is provided with in the same way with the heat radiation wing in stage casing, and the head section has two heat radiation wings, with the stage casing two wings that dispel the heat of two sides have identical cross sectional shape; Setting is docked in two heat radiation wings of head section and stage casing two wings that dispel the heat of two sides; The heat radiation wing of head section has chamfering away from an end in stage casing between end face and the side; Rear also is provided with the heat radiation wing, and is provided with in the same way with the heat radiation wing in stage casing, and rear has two heat radiation wings, with the stage casing two heat radiation wings of two sides have identical cross sectional shape; Setting is docked in two of rear heat radiation wings and stage casing two wings that dispel the heat of two sides; The heat radiation wing of rear has chamfering away from an end in stage casing between end face and the side; The surface of heat radiation wing is provided with the heat radiation rib of several projections along the profile length direction; Head section and rear are that aluminum or aluminum alloy is made by the die casting mode, and the stage casing is the aluminum or aluminum alloy section bar; Sealing gasket is that heat conductive silica gel is made.

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