LED projection lamp with sealing structure

Abstract

The utility model provides a kind of LED projection lamp with sealing structure, including shell, lamp body, lamp cover and reflector cup, the lamp body is installed in the shell, the reflector cup is embedded in the lamp body, further include the sealing structure for the sealed connection of the lamp body with the reflector cup, the sealing structure includes lug, spring piece and slot, the lug is equipped in the lamp body inner wall, the spring piece is equipped in the reflector cup and the spring piece and the lug are engaged with one end outer wall of the lamp body, the slot is circumferentially equipped in the shell front end inner wall, the lamp cover is pressed in the slot and covers the reflector cup front end;The sealing structure in the LED projection lamp of the utility model makes the lamp body and reflector cup keep sealed connection state, can prevent dust, flying insects and other sundries into lamp body, ensure that lamp body can be normally used;Threaded fin can increase the natural heat dissipation area of fin, improve the heat dissipation effect of fin to lamp body.

Description

Technical Field

[0001] This utility model belongs to the technical field of lighting fixtures, and in particular relates to an LED projection lamp with a sealed structure. Background Technology

[0002] Projectors are widely used in architectural lighting, stage lighting, advertising projection, industrial lighting and other fields. Their core function is to efficiently focus and directionally project the light emitted by the light source through a reflective structure (such as a reflector cup or reflector) to improve the light intensity and illumination distance.

[0003] Normally, the reflector is located inside the projector lamp body. However, the connection between the projector lamp body and the reflector is currently poorly sealed. During use, foreign objects such as dust and flying insects can easily enter through the gap between the projector lamp body and the reflector, thus affecting the normal use of the projector lamp body.

[0004] Therefore, there is a need to provide an LED projector that can solve the above-mentioned technical problems. Utility Model Content

[0005] The main objective of this invention is to provide an LED projector with a sealed structure, addressing the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An LED projector with a sealed structure includes a housing, a lamp body, a lamp cover, and a reflector. The lamp body is installed inside the housing, and the reflector is embedded in the lamp body. The projector also includes a sealing structure for sealing the lamp body and the reflector. The sealing structure includes a protrusion, a spring, and a slot. The protrusion is disposed on the inner wall of the lamp body. The spring is circumferentially disposed on the side of the reflector that extends into the lamp body and engages with the protrusion. The slot is circumferentially disposed on the inner wall of the front end of the housing. The lamp cover is pressed into the slot and covers the front end of the reflector.

[0008] Preferably, a sealing ring is provided between the card slot and the front end of the reflector cup.

[0009] Preferably, a limiting groove is provided on the outer wall of the lamp body near the reflector, and a connecting ring is provided inside the outer shell extending along the tail end of the lamp body, the connecting ring abutting and cooperating with the limiting groove.

[0010] Preferably, the end of the limiting groove near the card slot abuts against the lamp cover.

[0011] Preferably, the outer wall of the lamp body is provided with a heat sink integrally formed therewith.

[0012] Preferably, the heat sink is threaded.

[0013] Preferably, the end of the lamp body away from the reflector is mounted with a base via a fixing member.

[0014] Preferably, the surface of the base away from the lamp body is provided with a wiring post that is fixedly connected to the base by a nut, and the wiring post is provided with a wiring hole.

[0015] Preferably, the reflective surface of the reflector cup is an elliptical curved surface.

[0016] Compared with the prior art, the present invention will have at least the following beneficial effects:

[0017] The sealed structure keeps the lamp body and reflector in a sealed connection, preventing dust, flying insects and other debris from entering the lamp body and ensuring that the lamp body can be used normally.

[0018] The spiral-shaped heat sink can increase the natural heat dissipation area of ​​the heat sink and improve the heat dissipation effect of the heat sink on the lamp body. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of an LED projection lamp with a sealed structure according to the present invention;

[0021] Figure 2 This is a cross-sectional view of an LED projection lamp with a sealed structure according to the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0023] Figure 4 This is an exploded view of an LED projector with a sealed structure according to the present invention.

[0024] Figure 5 This is a schematic diagram of the lamp body in an LED projection lamp with a sealed structure according to the present invention;

[0025] Figure 6 This is a schematic diagram of the reflector in an LED projector with a sealed structure according to the present invention;

[0026] Figure 7This is a partial structural diagram of the combination of the outer shell, lamp body, and reflector of an LED projection lamp with a sealed structure according to the present invention;

[0027] Figure 8 This is a structural schematic diagram of an LED projector with a sealed structure according to this utility model from another perspective.

[0028] The reference numerals in the figures include:

[0029] 1. Outer shell; 100. Slot; 101. Connecting ring; 2. Lamp body; 200. Protrusion; 201. Limiting groove; 202. Heat sink; 3. Lamp cover; 4. Reflector cup; 400. Spring; 401. Reflective surface; 5. Sealing ring; 6. Base; 7. Wiring post; 700. Wiring hole. Detailed Implementation

[0030] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely exemplary embodiments of this utility model, and not the only embodiments.

[0031] like Figures 1 to 8 As shown, an LED projector with a sealed structure includes a housing 1, a lamp body 2, a lamp cover 3, and a reflector 4. The lamp body 2 is installed inside the housing 1, and the reflector 4 is embedded inside the lamp body 2. The projector also includes a sealing structure for sealing the lamp body 2 and the reflector 4. The sealing structure includes a protrusion 200, a spring 400, and a slot 100. The protrusion 200 is located on the inner wall of the lamp body 2. The spring 400 is circumferentially located on the side of the reflector 4 that extends into the lamp body 2, and the spring 400 engages with the protrusion 200. Several springs 400 are provided. When the reflector 4 is installed inside the lamp body 2, the springs 400 on the outer wall of the reflector 4 are aligned with the protrusions 200, and the reflector 4 is pressed forcefully into the lamp body 2, causing the springs 400 to engage with the protrusions 200. The slot 100 is circumferentially located on the inner wall of the front end of the outer shell 1. The lamp cover 3 is pressed into the slot 100 and covers the front end of the reflector cup 4. After the reflector cup 4 is installed in the lamp body 2, the lamp cover 3 is pressed into the slot 100, thus completing the assembly of the outer shell 1, the lamp body 2, the lamp cover 3 and the reflector cup 4, and forming a sealed structure between the lamp body 2 and the reflector cup 4. In this way, external dust and flying insects are not easy to enter the lamp body 2, and will not affect the use of the LED projection lamp in this embodiment. It is understood that the front end of the outer shell 1, that is, the center of its end that is collinear with the lamp body 2, has a mounting hole for installing the lamp cover 3. Correspondingly, in order to enable the lamp cover 3 to be quickly installed in the mounting hole and pressed into the slot 100, the lamp cover 3 is made of an elastic material.

[0032] like Figures 2 to 3As shown, a sealing ring 5 is provided between the card slot 100 and the front end of the reflector cup 4. The sealing ring 5 can ensure that any gaps that may exist between the card slot 100 and the reflector cup 4 are filled. Normally, the sealing ring 5 is glued between the card slot 100 and the front end of the reflector cup 4. That is, after the lamp cover 3 is pressed into the card slot 100, the sealing ring 5 is located between the lamp cover 3 and the front end of the reflector cup 4.

[0033] A limiting groove 201 is provided on the outer wall of the lamp body 2 near the reflector cup 4. A connecting ring 101 is provided inside the outer shell 1 extending along the tail end of the lamp body 2. The connecting ring 101 abuts against the limiting groove 201, and the end of the limiting groove 201 near the slot 100 abuts against the lamp cover 3. Specifically, when assembling the LED projection lamp of this embodiment, the reflector cup 4 is first installed and connected to the lamp body 2 in the above manner; then the outer shell 1 is installed and connected to the lamp body 2. When installing the outer shell 1 and the lamp body 2, the connecting ring 1 of the outer shell 1 is connected to the lamp body 2 in the above manner. The ring 101 is aligned with the limiting groove 201 of the lamp body 2, and the outer shell 1 is pushed towards the lamp body 2 by external force to complete the abutment of the connecting ring 101 and the limiting groove 201; finally, the lamp cover 3 is pressed into the slot 100, and the end of the limiting groove 201 near the slot 100 abuts against the lamp cover 3. In this way, the limiting groove 201 abuts against the connecting ring 101 and the lamp cover 3 at the same time. Under the combined action of the two, the outer shell 1 and the lamp body 2 form a stable installation structure, thereby completing the assembly of the LED projection lamp of this embodiment.

[0034] like Figure 2 , Figure 4 and Figure 5 As shown, LED projectors generate a certain amount of heat during actual use, so it is necessary to dissipate the heat inside the lamp body 2 in a timely manner. Therefore, a heat sink 202 is integrally formed on the outer wall of the lamp body 2. Typically, the heat sink 202 is made of metal with high thermal conductivity, low cost, environmental adaptability (wide temperature range), good active heat dissipation performance, and high heat dissipation stability. The integral formation of the heat sink 202 with the outer wall of the lamp body 2 can reduce the structural space occupied by the heat sink 202 and save on the manufacturing cost of the product.

[0035] The heat sink 202 is threaded. The threaded heat sink 202 can extend the heat dissipation path in a limited space and increase the natural heat dissipation area of ​​the heat sink 202. Furthermore, the threaded design of the heat sink 202 can disrupt laminar flow, promote air mixing, and improve the convective heat transfer coefficient, thereby improving the heat dissipation effect of the heat sink 202 on the lamp body 2.

[0036] like Figure 2 , Figure 4 and Figure 8As shown, a base 6 is installed at the end of the lamp body 2 away from the reflector cup 4 via a fixing component. The base 6 can protect the end of the lamp body 2 away from the reflector cup 4 (i.e., the tail end of the lamp body 2). Furthermore, the base 6 can form a closed structure at the tail end of the lamp body 2 to prevent dust, flying insects and other debris from entering the lamp body 2 from the tail end.

[0037] The surface of the base 6 away from the lamp body 2 is provided with a wiring post 7 which is fixedly connected to the base 6 by a nut. The wiring post 7 is provided with a wiring hole 700, through which the power cord can be arranged.

[0038] like Figure 2 , Figure 6 and Figure 7 As shown, the reflective surface 401 of the reflector cup 4 is set as an elliptical surface. This allows the light source generated by the lamp body 2 to be focused onto the reflector cup 4 after passing through the light reflector. This increases the light energy utilization rate of the reflector cup and reduces scattering loss. In addition, the elliptical surface setting allows the light source emitted by the lamp body 2 to provide uniform illumination and avoid glare, thereby improving the lighting effect of the LED projector.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An LED projector with a sealed structure, comprising a housing (1), a lamp body (2), a lamp cover (3), and a reflector (4), wherein the lamp body (2) is installed inside the housing (1), and the reflector (4) is embedded inside the lamp body (2), characterized in that, It also includes a sealing structure for sealing the lamp body (2) and the reflector cup (4). The sealing structure includes a protrusion (200), a spring (400) and a slot (100). The protrusion (200) is disposed on the inner wall of the lamp body (2). The spring (400) is circumferentially disposed on the side of the reflector cup (4) that extends into the lamp body (2) and the spring (400) engages with the protrusion (200). The slot (100) is circumferentially disposed on the inner wall of the front end of the outer shell (1). The lamp cover (3) is pressed into the slot (100) and covers the front end of the reflector cup (4).

2. The LED projection lamp with a sealed structure according to claim 1, characterized in that, A sealing ring (5) is provided between the card slot (100) and the front end of the reflector cup (4).

3. The LED projection lamp with a sealed structure according to claim 1, characterized in that, The lamp body (2) has a limiting groove (201) on the outer wall near the reflector cup (4), and a connecting ring (101) extends from the outer shell (1) along the tail end of the lamp body (2), and the connecting ring (101) abuts against the limiting groove (201).

4. The LED projection lamp with a sealed structure according to claim 3, characterized in that, The end of the limiting groove (201) near the slot (100) abuts against the lamp cover (3).

5. An LED projector with a sealed structure according to claim 1, characterized in that, The outer wall of the lamp body (2) is provided with a heat sink (202) integrally formed therewith.

6. The LED projection lamp with a sealed structure according to claim 5, characterized in that, The heat sink (202) is threaded.

7. The LED projection lamp with a sealed structure according to claim 1, wherein, The lamp body (2) is mounted on a base (6) at the end away from the reflector (4) via a fastener.

8. The LED projection lamp with a sealed structure according to claim 7, characterized in that, The base (6) has a wiring post (7) on one end surface away from the lamp body (2) which is fixedly connected to the base (6) by a nut, and the wiring post (7) has a wiring hole (700).

9. The LED projection lamp with a sealed structure according to claim 1, wherein, The reflective surface (401) of the reflector cup (4) is set as an elliptical surface.

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