Lamp shell and lamp thereof

文档序号:165949 发布日期:2021-10-29 浏览:58次 中文

阅读说明:本技术 一种灯壳及其灯具 (Lamp shell and lamp thereof ) 是由 罗士春 黄厚宾 李金明 于 2021-07-22 设计创作,主要内容包括:本发明公开一种灯壳及其灯具,包括一体成型的灯壳本体,所述灯壳本体包括由所述灯壳本体的一侧向另一侧顺次设置的电源安装部和光源安装部,所述电源安装部的内侧和所述光源安装部的内侧分别形成电源腔和光源腔,所述电源腔凸出所述灯壳本体的高度大于所述光源腔凸出所述灯壳本体的高度,所述电源安装部的外表面和所述光源安装部的外表面通过过渡斜面平滑过渡连接,所述灯壳本体的外表面成一高一低的流线型;本发明灯壳本体一体成型,电源腔凸出高度大于光源腔凸出高度,电源安装部的外表面和光源安装部的外表面通过过渡斜面平滑过渡连接,能够形成电源和光源共壳不共腔的结构,降低电源和光源的热量干扰,提高散热性能。(The invention discloses a lamp shell and a lamp thereof, comprising an integrally formed lamp shell body, wherein the lamp shell body comprises a power supply installation part and a light source installation part which are sequentially arranged from one side to the other side of the lamp shell body, the inner side of the power supply installation part and the inner side of the light source installation part form a power supply cavity and a light source cavity respectively, the height of the power supply cavity protruding out of the lamp shell body is greater than the height of the light source cavity protruding out of the lamp shell body, the outer surface of the power supply installation part and the outer surface of the light source installation part are in smooth transition connection through a transition inclined plane, and the outer surface of the lamp shell body is in a high-low streamline shape; the lamp shell body is integrally formed, the protruding height of the power supply cavity is greater than that of the light source cavity, the outer surface of the power supply installation part and the outer surface of the light source installation part are in smooth transition connection through the transition inclined plane, a structure that the power supply and the light source share the shell and do not share the cavity can be formed, the heat interference of the power supply and the light source is reduced, and the heat dissipation performance is improved.)

1. A lamp envelope, characterized by: the lamp body comprises an integrally formed lamp body, the lamp body comprises a power supply installation part and a light source installation part, wherein the power supply installation part and the light source installation part are sequentially arranged from one side to the other side of the lamp body, the inner side of the power supply installation part and the inner side of the light source installation part form a power supply cavity and a light source cavity respectively, the power supply cavity protrudes, the height of the lamp body is larger than that of the light source cavity, the outer surface of the power supply installation part and the outer surface of the light source installation part are connected in a smooth transition mode through a transition inclined plane, and the outer surface of the lamp body is streamline.

2. The lamp envelope of claim 1, wherein: the inner bottom surface of the power supply cavity and the inner bottom surface of the light source cavity are respectively provided with ribs.

3. The lamp envelope according to claim 1 or 2, wherein: the wire outlet of the lamp shell body is provided with a lamp pole mounting portion, and the inside cable that runs through of lamp pole mounting portion is used for penetrating through and establishes the lamp pole.

4. The lamp envelope of claim 3, wherein: be provided with a few font clamp plates in the lamp pole installation department, the inner wall of lamp pole installation department is provided with spacing, the both sides of a few font clamp plates are injectd between the spacing.

5. A light fixture, characterized by: the lamp shell according to any one of claims 1 to 4, wherein a power supply is mounted in the power supply mounting portion, a light source is mounted in the light source mounting portion, the light source is electrically connected with the power supply, and a lamp panel is mounted at an opening of the lamp shell body.

6. The luminaire of claim 5, wherein: the opening is provided with annular muscle, annular muscle is less than the height of the outer wall of lamp body, annular muscle top is provided with the silica gel circle, the silica gel circle with lamp panel sealing connection.

7. The luminaire of claim 5, wherein: and a lightning protection device is arranged on the inner side of the transition inclined plane.

8. A light fixture as recited in any one of claims 5-7, wherein: the LED lamp is characterized in that a lens and a reflector are arranged outside the light source, the lamp panel is a whole piece of panel glass, the panel glass comprises a light transmitting area and a non-light transmitting area, and the light transmitting area corresponds to the light source.

9. The luminaire of claim 8, wherein: pressing sheets are arranged at four corners of the panel glass and are mounted on the lamp shell body through pressing sheet screws.

10. The luminaire of claim 8, wherein: the waterproof lamp is characterized in that a waterproof head is arranged at the wire outlet of the lamp shell body, and a cable penetrates through the waterproof head.

Technical Field

The invention relates to the technical field of street lamp illumination, in particular to a lamp shell and a lamp thereof.

Background

The existing common street lamp generally has a structure with radiating fins or an external lampshade, such a lamp radiator, a power supply and the like are covered in the external lampshade, a warming furnace temperature zone effect can be formed, the temperature of the radiator bakes the power supply, the shell blocks the convection heat dissipation of the radiator, the service life of the power supply can be rapidly reduced and the power supply can be invalid, the service life of the whole product is greatly influenced, and the post-treatment cost is high.

Application publication No. CN 105402659A's chinese patent discloses an improve drive power supply heat dispersion's LED street lamp, including aluminium extrusion lamp body integration radiator, flip structure's drive power supply radiator, the waterproof protecgulum of power supply radiator, LED drive power supply, light source module etc, LED drive power supply in close contact with design has radiating fin's power supply radiator, power supply radiator adopts the type of falling U structure, the embedding is in the fin of lamp body integration radiator, that is to say, dispel the heat through fin structure's radiator in this scheme, the size or the quantity through increase fin structure improve the radiating effect, however, debris or foreign matter are piled up very easily to the fin structure at lamp body back, hinder lamps and lanterns and air heat transfer, thereby lamps and lanterns temperature sharply risees, and reduce the lamps and lanterns life-span.

Chinese patent application publication No. CN 107477454a discloses a heat dissipation LED street lamp, a plurality of inwardly extending fins are equidistantly distributed on two long arcs of the lamp housing, adjacent fins are connected with each other, the street lamp of this scheme hopes not only to radiate heat through the fins but also to utilize the hollowed-out part to enlarge the contact surface with the air, the heat generated by the street lamp can be radiated to the air by means of the flow of the air, the heat radiation speed of the street lamp is accelerated, however, because the fins have to be arranged on the back of the lamp housing, it is inevitable to pile up sundries or foreign matters along with the extension of the service time, dust and the like, the heat exchange between the lamp and the air is hindered, and the service life of the lamp is reduced by finally influencing the heat radiation.

Chinese patent application publication No. CN 111120917a discloses an LED street lamp, which does not explicitly describe the heat dissipation structure used, and the specification and drawings cannot obtain the characteristics of the related heat dissipation structure, so it can be inferred that the scheme also uses the heat dissipation structure with the form of external heat sink, and the back of the housing of the scheme is a flat plate, and the power supply and the light source are installed on the installation surface of the flat plate, so the temperature between the light source and the power supply can be mutually transmitted and influenced, and further the warm-up temperature zone effect is formed, and finally the heat dissipation is influenced.

Disclosure of Invention

The invention aims to provide a lamp shell and a lamp thereof, aiming at solving the problems in the prior art, the lamp shell body is integrally formed, the protruding height of a power supply cavity is greater than that of a light source cavity, the outer surface of a power supply installation part and the outer surface of a light source installation part are in smooth transition connection through a transition inclined plane, a structure that the power supply and the light source share the same shell and do not share the same cavity can be formed, the heat interference of the power supply and the light source is reduced, and the heat dissipation performance is improved.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a lamp shell which comprises a lamp shell body which is integrally formed, wherein the lamp shell body comprises a power supply installation part and a light source installation part which are sequentially arranged from one side to the other side of the lamp shell body, the inner side of the power supply installation part and the inner side of the light source installation part respectively form a power supply cavity and a light source cavity, the height of the power supply cavity protruding out of the lamp shell body is larger than the height of the light source cavity protruding out of the lamp shell body, the outer surface of the power supply installation part and the outer surface of the light source installation part are in smooth transition connection through a transition inclined plane, and the outer surface of the lamp shell body is in a high-low streamline shape.

Preferably, the inner bottom surface of the power supply cavity and the inner bottom surface of the light source cavity are respectively provided with a rib.

Preferably, the outlet of the lamp housing body is provided with a lamp post mounting portion, and the lamp post mounting portion is internally used for penetrating through the cable and penetrating through the lamp post.

Preferably, be provided with several font clamp plates in the lamp pole installation department, the inner wall of lamp pole installation department is provided with spacing, the both sides of several font clamp plates are injectd between the spacing.

The invention also provides a lamp, which comprises the lamp housing, wherein a power supply is arranged in the power supply installation part, a light source is arranged in the light source installation part, the light source is electrically connected with the power supply, and a lamp panel is arranged at an opening of the lamp housing body.

Preferably, the opening is provided with an annular rib, the annular rib is lower than the height of the outer wall of the lamp housing body, a silica gel ring is arranged at the top of the annular rib, and the silica gel ring is connected with the lamp panel in a sealing mode.

Preferably, a lightning protector is arranged on the inner side of the transition inclined plane.

Preferably, a lens and a reflector are arranged outside the light source, the lamp panel is a whole piece of panel glass, the panel glass comprises a light transmitting area and a non-light transmitting area, and the light transmitting area is arranged corresponding to the light source.

Preferably, pressing sheets are arranged at four corners of the panel glass, and the pressing sheets are mounted on the lamp shell body through pressing sheet screws.

Preferably, a waterproof head is arranged at the outlet of the lamp housing body, and a cable penetrates through the waterproof head.

Compared with the prior art, the invention has the following technical effects:

(1) the lamp shell body is integrally formed, the whole lamp shell body is used for conducting and radiating heat, the heat exchange between the whole surface and air radiation is accelerated, the temperature of a lamp is effectively reduced, the protruding height of a power supply cavity is greater than that of a light source cavity, the outer surface of a power supply installation part is smoothly and transitionally connected with the outer surface of the light source installation part through a transition inclined plane, a structure that the power supply and the light source share the shell and do not share the cavity can be formed, and the transition inclined plane can slow down the heat transfer between the power supply installation part and the light source installation part, so that the mutual interference of heat generated by the power supply and the light source is reduced;

(2) the outer surface of the lamp shell body is in a high-low streamline shape, so that air can conveniently circulate on the outer surface, the wind resistance is small, the adverse effect of wind power on the installation structure and stability can be avoided, the safety and reliability of outdoor installation of the lamp are improved, meanwhile, the wind power can flow along the outer surface of the lamp shell body, and the accumulation of sundries and dust on the lamp shell body can be avoided, so that a self-cleaning structure is formed, the influence of the sundries and the dust on heat dissipation is avoided, and the heat dissipation effect is improved;

(3) the lamp post fixing structure is characterized in that a lamp post mounting part is arranged on the lamp post mounting part, and the two sides of the pressure plate are clamped in the limiting strips, so that a small-diameter lamp post is fixed on the inner side of the pressure plate in the shape of a Chinese character 'ji', or a lamp post fixing screw is additionally arranged and screwed through the lamp post fixing screw, so that the pressure plate in the shape of Chinese character 'ji' and the lamp post with the small diameter can be fixed and pressed together to form a more stable mounting and fixing structure;

(4) the invention adopts a structure that the whole piece of panel glass is matched with the lens, and the light of the light source can be utilized to the maximum extent by utilizing the guide of the reflecting cover, and the whole piece of panel glass can better clean dirt and resist ultraviolet rays, thereby avoiding the adverse effect of ultraviolet irradiation on the internal structure of the lamp.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of an explosive structure according to the present invention;

FIG. 4 is a schematic structural view of a lamp housing body according to the present invention;

FIG. 5 is a schematic view of the mounting structure of the V-shaped platen according to the present invention;

FIG. 6 is a schematic view showing the air flow state of the streamlined lamp housing body according to the present invention;

FIG. 7 shows the measured surface temperature of the lamp according to the present invention;

FIG. 8 is a surface temperature of a lamp with finned heat sinks similar in construction to the present invention;

wherein, 1, a pressure plate shaped like a Chinese character 'ji'; 2. a waterhead; 3. a lamp post fixing screw; 4. a lamp housing body; 41. a power supply mounting part; 42. a light source mounting section; 43. a transition bevel; 44. a lamp post mounting part; 441. a limiting strip; 45. an annular rib; 5. a lightning protection device fixing support; 6. a power source; 7. a lightning protection device; 8. a PCB assembly; 9. a lens; 10. a reflector; 11. a reflector screw; 12. a silica gel ring; 13. a lamp panel; 14. tabletting; 15. and (7) pressing a sheet screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a lamp shell and a lamp thereof, aiming at solving the problems in the prior art, the lamp shell body is integrally formed, the protruding height of a power supply cavity is greater than that of a light source cavity, the outer surface of a power supply installation part and the outer surface of the light source installation part are in smooth transition connection through a transition inclined plane, a structure that the power supply and the light source share the same shell and do not share the same cavity can be formed, the heat interference of the power supply and the light source is reduced, and the heat dissipation performance is improved.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 4, the present invention provides a lamp housing, which includes an integrally formed lamp housing body 4, wherein the lamp housing body 4 can be made of resin material, plastic, metal or alloy, preferably metal or alloy, such as aluminum, iron, or aluminum alloy, and has the advantages of high hardness, good heat conductivity, and easy processing. The lamp housing body 4 comprises a power supply mounting part 41 and a light source mounting part 42 which are sequentially arranged from one side to the other side of the lamp housing body 4, the power supply mounting part 41 and the light source mounting part 42 are respectively used as a part of the lamp housing body 4 to form the lamp housing body 4 which is integrated, corresponding mounting structures such as ribs and mounting holes are respectively arranged on the power supply mounting part 41 and the light source mounting part 42, the power supply mounting part 41 is used for mounting components such as a power supply 6, and the light source mounting part 42 is used for mounting components such as a light source. Power supply chamber and light source chamber are formed respectively to the inboard of power installation department 41 and the inboard of light source installation department 42, the height that power supply chamber bulges lamp body 4 is greater than the height that light source chamber bulges lamp body 4, because the heat that power 6 produced and the heat that the light source produced all will be through lamp body 4 outside heat dissipation, at this moment, the power supply chamber is for the light source chamber more outside protrusion, consequently, the heat of power 6 and the heat of light source are not lost at same height, and do not coincide in same vertical direction, can reduce mutual interference in the space, thereby can improve the radiating effect. The lamp housing body 4 is integrally formed, the whole lamp housing body 4 is used for conducting and radiating heat, the heat exchange between the whole surface and air radiation is accelerated, the temperature of a lamp is effectively reduced, the protruding height of a power supply cavity is greater than that of a light source cavity, the outer surface of a power supply installation part 41 is in smooth transition connection with the outer surface of a light source installation part 42 through a transition inclined plane 43, a structure that the power supply 6 and the light source share the same shell and do not share the same cavity can be formed, the heat conduction of the transition inclined plane 43 is much slower than that of the positions of the power supply installation part 41 and the light source installation part 42, the heat transfer between the power supply installation part 41 and the light source installation part 42 can be slowed down, and therefore the mutual interference of the heat generated by the power supply 6 and the light source can be further reduced. The surface of power installation department 41 and the surface of light source installation department 42 pass through transition inclined plane 43 smooth transition connection, make the surface of lamp body 4 become one high one low streamlined, be convenient for the circulation of air at the surface, the windage is less, can avoid wind-force to the adverse effect of lamps and lanterns mounting structure and stability, improve the security and the reliability of lamps and lanterns at outdoor installation, simultaneously, because wind-force can flow (as shown in figure 6) along the surface of lamp body 4, can avoid the accumulation of debris and dust on lamp body 4, thereby form a structure that can self-cleaning, avoid debris and dust to radiating influence, improve the radiating effect.

As shown in fig. 7 and 8, a temperature comparison between a lamp using the lamp housing body 4 of the present invention and a lamp having a structure similar to that of the present invention but using a fin-type heat sink structure after lighting for a certain time is shown, wherein fig. 7 shows that the lamp using the lamp housing body 4 of the present invention lights for three hours at an annular temperature of 25 degrees with a power of 75W, and the display temperature is 69.9 ℃; fig. 8 shows a lamp using a finned heat sink configuration, again lit for three hours at a ring temperature of 25 degrees, at a power of 75W, which shows a temperature of 75 ℃. It can be seen from the comparison result that the temperature of the lamp adopting the lamp housing body 4 of the invention is obviously lower than that of the lamp adopting the fin radiating fin structure, and therefore, the structure of the lamp housing body 4 of the invention has obvious advantage in radiating effect under the same condition.

As shown in fig. 4, combine fig. 2 ~ 3 to show, the interior bottom surface in power supply chamber and the interior bottom surface in light source chamber can be provided with the rib respectively, the rib is provided with many according to the interior bottom surface of power installation department 41 and the interior bottom surface of light source installation department 42, many ribs are crisscross to be arranged anyhow, can set up the mounting hole that is used for installing power 6 or light source on the rib, therefore, the rib both can regard as mounting structure, also can regard as heat-conducting structure, be convenient for dispel the heat to the 4 surfaces of lamp body, and simultaneously, the effect that can also play the strengthening rib is with the structural strength who strengthens lamp body 4.

The outlet of the lamp housing body 4 is provided with the lamp post mounting portion 44, the outlet can be arranged on one side of the lamp housing body 4, and also can be arranged on the back of the lamp housing body 4, and is preferably arranged on one side of the lamp housing body 4, at this time, the axial direction of the lamp post mounting portion 44 is parallel to the streamline direction of the lamp housing body 4, that is, the lamp post mounting portion 44, the power supply mounting portion 41 and the light source mounting portion 42 are sequentially arranged, therefore, the lamp post mounting portion 44 cannot cause the wind resistance influence on the lamp housing body 4, and the stability of the lamp after being mounted can be ensured. Referring to fig. 3 and 5, the pole mounting portion 44 is disposed according to the shape of a pole, generally, the pole is circular, the middle portion of the pole mounting portion 44 is a hollow structure, the hollow structure is also circular as a mounting hole of the pole, and a cable penetrates through the pole mounting portion 44 and penetrates through the pole.

With reference to fig. 3 and 5, a pressure plate 1 shaped like a Chinese character 'ji' is provided in the lamp post mounting portion 44, the inner wall of the lamp post mounting portion 44 is provided with a limiting strip 441, two sides of the pressure plate 1 shaped like a Chinese character 'ji' are limited between the limiting strips 441, after the lamp post is penetrated, the inner concave surface of the pressure plate 1 shaped like a Chinese character 'ji' is wrapped on the outer diameter side of the lamp post, so that the lamp post is limited and fixed, and it should be noted that the pressure plate 1 shaped like a Chinese character 'ji' itself can also have certain elasticity and sufficient rigidity at the same time, so as to further provide a fixing effect. Moreover, the limiting strips 441 can limit the position of the pressure plate 1 in a shape like a Chinese character 'ji', and can also limit the position of the lamp post, and when the small-diameter lamp post is fixed, the outer diameter side of the lamp post can be clamped between the two limiting strips 441. Further, a pole fixing screw 3 may be provided on the pole mounting portion 44, and the pole fixing screw 3 may be further fixed by abutting against the projecting side of the n-shaped pressing plate 1 through the pole mounting portion 44. Therefore, according to the invention, the pressure plate 1 in the shape of Chinese character ji is arranged in the lamp pole mounting part 44, the lamp pole with small diameter is fixed through the pressure plate 1 in the shape of Chinese character ji, or the lamp pole fixing screw 3 is arranged, and then the lamp pole fixing screw 3 is screwed, so that the pressure plate 1 in the shape of Chinese character ji and the lamp pole with small diameter can be fixed and pressed together, a more stable mounting and fixing structure is formed, if the pressure plate is used for the lamp pole with large diameter, the pressure plate 1 in the shape of Chinese character ji can be omitted, and the lamp pole fixing screw 3 can be directly fixed on the lamp pole, therefore, the lamp pole mounting structure can be applicable to the lamp poles with different diameters simply and conveniently at low cost, and good fixing effect can be realized.

As shown in fig. 1 to 3, the present invention further provides a lamp, which includes the lamp housing described above, wherein the power supply 6 is installed in the power supply installation portion 41, the power supply 6 is attached to the inner bottom surface of the power supply installation portion 41 or ribs on the inner bottom surface, and heat generated by the power supply 6 can be transferred to the outer surface of the power supply installation portion 41 for heat dissipation. Install the light source in the light source installation department 42, the light source can adopt the LED light source, specifically can include PCB subassembly 8 (be provided with the lamp pearl granule on the PCB subassembly 8), and the light source is connected with 6 electricity of power, is supplied with the electric energy by power 6, and the heat that PCB subassembly 8 produced can be through the outside heat dissipation of surface of light source installation department 42. The lamp panel 13 is mounted in the opening of the lamp housing body 4, and the lamp panel 13 has light transmittance, so that components in the lamp housing can be protected, and light can be smoothly emitted.

The opening of lamp body 4 can be provided with annular muscle 45, annular muscle 45 is less than the height of the outer wall of lamp body 4, there is a determining deviation apart from the outer wall of lamp body 4, annular muscle 45 top is provided with silica gel circle 12, silica gel circle 12 and lamp panel 13 sealing connection, thereby after installation lamp panel 13, make the inboard space of annular muscle 45 isolated with outside space, avoid the dust, steam etc. enter into lamp body 4 inside (power supply intracavity portion and/or light source intracavity portion), and then can protect the inside electric elements of lamp body 4.

The inboard that lies in transition inclined plane 43 in lamp body 4 is provided with lightning protection device 7, and lightning protection device 7 passes through lightning protection device fixed bolster 5 to be fixed in the inboard of transition inclined plane 43, and the certain of lamp body inner space that can also form is blockked to the lightning protection device 7 that this department set up to can make the heat in power supply chamber and light source chamber flow more slowly, avoid thermal interact.

The light source outside can be provided with lens 9 and reflector 10, and each lamp pearl granule corresponds a lens 9, and reflector 10 passes through reflector screw 11 to be installed on lamp body 4 for reflect the light source of all lamp pearl granules, reach spotlight and reduce the effect of light source loss. The lamp panel 13 may be a whole piece of panel glass, and the panel glass includes a light-transmitting region and a non-light-transmitting region, and the light-transmitting region is disposed corresponding to the source. The lamp adopts the structure that the whole piece of panel glass is matched with the lens 9, the light of a light source can be utilized to the maximum extent by utilizing the guiding of the reflecting cover 10, and the whole piece of panel glass can better clean dirt and resist ultraviolet rays, thereby avoiding the adverse effect of ultraviolet irradiation on the internal structure of the lamp.

For the fixed panel glass that can be better, panel glass's four corners is provided with preforming 14, and the radian setting of preforming 14 cooperation lamp body 4 can set preforming 14 to fan-shaped structure, and fan-shaped structural through-hole that is provided with connects on lamp body 4 after passing this through-hole preforming screw 15, that is to say, preforming 14 passes through preforming screw 15 and installs on lamp body 4. Extrusion through preforming screw 15 can make panel glass extrusion silica gel circle 12, the sealed effect of further improvement silica gel circle 12, the setting that utilizes glass panels simultaneously can be better avoids the influence of ultraviolet ray to silica gel circle 12, and then improves the life of silica gel circle 12.

The outlet position (in the lamp pole installation portion 44) of the lamp shell body 4 is provided with a waterproof head 2, and a cable penetrates through the waterproof head 2, so that water vapor or dust can be prevented from entering the lamp shell from the outlet.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

12页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:一种灯具散热器及其制作方法、灯具

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!