CN217361086U - Projection lamp assembly and projection lamp - Google Patents

Abstract

The utility model discloses a projection lamp component and a projection lamp, wherein the projection lamp component comprises a first support and a second support, a groove is arranged on the lower end surface of the first support, the groove comprises a first contact part and a second contact part, and a first through hole and a second through hole are arranged on the first support and the second support; the first contact portion is supported with the income plain noodles of film, and the second contact portion cooperates and restricts its lateral displacement with the film side wall, and the play plain noodles of film offsets with the second support up end. The utility model discloses a profection lamp subassembly and profection lamp can reduce the damaged clastic possibility of producing of film piece, also can prevent that piece etc. from getting into optical zone territory, can also improve the centralized stability, forms good projection imaging effect.

Description

Projection lamp assembly and projection lamp

Technical Field

The utility model belongs to the technical field of illumination/signal device, concretely relates to projecting lamp subassembly that can be arranged in the projecting lamp and contain the projecting lamp of this subassembly.

Background

The projection lamp is a lamp capable of projecting logo patterns, artistic characters, various images, latest creatives of merchants, promotion information, product albums and displays in shops, markets, store doors, roads, nearby walls or any other places in a light mode, can be applied to various scenes, and is one of the automotive exterior projection lamps.

At present, all film mounting structures of automobile exterior projection lamp lens set are open structural designs, and the film assembling mode is clearance fit, so that dust and film fragments cannot be prevented from falling into a projection pattern area to generate bad black spots. With the continuous development of the automobile industry, people have an increasing requirement on the imaging of the automobile exterior projection lamp, the automobile exterior projection lamp still comes, automobile projection is a product for providing higher comfortable environment outside the automobile and atmosphere outside the automobile, plane effect patterns can be imaged on the ground through a plane pattern (an LED light source penetrates through a lens and a single film) and a three-dimensional pattern (the LED light source penetrates through the lens and the multiple films to image the three-dimensional pattern on the ground), and the automobile exterior projection lamp has two imaging effects, can be mounted in multiple colors and multiple parts, and is an important part of a rear automobile.

The conventional lens structure has the following disadvantages: the film is glass material, and the assembly mode is clearance fit, and the marginal finish quality is not high easily after the film is cut remains the disintegrating slag, and film edge and film support and lens collision make remaining disintegrating slag drop when producing the vibration in product equipment, transportation, whole car assembly and driving process, and the film rubs production plastic piece, dust, other part surface adhesion dust and external dust fall into the formation of image on the projection pattern and present the black spot harmfully with the film support, influence customer satisfaction and user experience comfort level.

Problem to the aforesaid produces, an object of the utility model is to provide a can be used to the battery of lens in the car profection lamp, the mounting structure of film piece, the problem that the marginal glass disintegrating slag of film piece and outside dust fall into the pattern region and produce the black spot has been solved, can not resemble in traditional battery of lens structural design, the black spot defective products need be disassembled and are done over again, the disassembly process can lead to the casing, the apron, parts such as PCBA damage is scrapped, cause expensive loss, the qualified part of inside detection also can produce the black spot harmfully in transportation and vehicle travel vibration process, lead to customer's comfort level to reduce or complain.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a film is difficult damaged and even if damaged can not lead to the piece to get into the optical zone yet and influence the profection lamp subassembly of formation of image effect and contain this profection lamp of throwing the subassembly.

In order to achieve the above purpose, the utility model adopts the following scheme:

the utility model provides a profection lamp subassembly, is including the film support that is used for fixed film, the film support includes first support and second support, and first support cooperates in order to fix the film with the below from the top of film respectively with the second support.

Be equipped with the recess that is used for holding the film on the lower terminal surface of first support, the recess includes first contact site and second contact site, and first contact site is formed by the diapire of recess, and the second contact site is formed by the lateral wall of recess. The bottom wall of the first support is also provided with a first through hole penetrating through the first support, and the second support is also provided with a second through hole penetrating through the second support and corresponding to the first through hole.

The first contact part is abutted to the light incident surface of the film, the second contact part is matched with the side wall of the film and limits transverse displacement, and the light emergent surface of the film is abutted to the upper end surface of the second support.

Preferably, the projection lamp assembly further comprises a first lens and a second lens which are respectively arranged above and below the film support, the lower end face of the first lens is in contact fit with the upper end face of the first support, and the first support is made of an elastic material and is in a pressed state; the upper end face of the second lens is in contact fit with the lower end face of the second support, and the second support is made of hard materials. The film support comprises an upper part and a lower part, wherein the first support positioned above is made of elastic materials and is in a pressed state, the second support positioned below is made of hard materials, and the projection lamp can be more stably concentrated by the support which is soft at the upper part and hard at the lower part.

Preferably, the upper end face of the second bracket is further provided with a contact matching part which is arranged in an upward protruding manner and is formed by surrounding the second through hole, and the contact matching part is abutted against the light-emitting surface of the film sheet. On one hand, the contact matching part can be in contact with the light-emitting surface of the film sheet to play a role in sealing, and chips, dust and the like are prevented from entering the light-emitting area to interfere with imaging quality; on the other hand, the contact matching part is made of hard materials, so that the distance between the film and the imaging lens is stable and controllable, and the stability of the focal length is facilitated.

Preferably, the inner dimension of the side wall of the second contact part in the free state is smaller than the outer dimension of the side wall of the film, so that the film is also in a pressed state after being matched in the film support; simultaneously, the second support of elastic material also can carry out good parcel to the lateral wall of film, prevents clastic production as far as possible, can also avoid the piece that inevitable produced to drop.

Preferably, the depth of the groove is larger than or equal to the thickness of the film, the shape of the second contact part corresponds to the shape of the film, and the second contact part wraps the side wall of the film. Therefore, the side wall of the film is integrally wrapped by the second contact part, and the possibility of generation or falling of debris is further reduced.

Preferably, the film is polygonal, and the second contact portion is further provided with a cavity which corresponds to the corner position of the side wall of the film but is not in contact with the side wall of the film. Because the edges and corners of the cut film are sharp, the first support can be scratched in the assembling, transporting or using process, the first support can be effectively protected by arranging the cavity which is not in contact with the side wall of the film, and particularly the groove for accommodating the film is protected.

Preferably, the film support further comprises a transverse limiting mechanism, the transverse limiting mechanism comprises a first side limiting part and a second side limiting part which are respectively arranged on the first support and the second support, and the first side limiting part and the second side limiting part are matched to limit transverse displacement between the first support and the second support. This can make this film support and film, can only follow the cooperation or activity of upper and lower direction, after the cooperation lens respectively in upper and lower direction, can form firm, stable whole subassembly.

Preferably, the first side limiting part is formed by a plurality of concave parts arranged on the side wall of the first bracket or a plurality of positioning holes penetrating through the first bracket, and the second side limiting part is formed by a plurality of positioning convex blocks protruding upwards along the upper end surface of the second bracket. Through the cooperation of locating lug and concave part or locating hole, can effective spacing lateral displacement, also can cooperate first support on the second support with the pressurized state to form holistic film support.

Preferably, the first lens is a condenser lens, and the second lens is an imaging lens.

As the preferred, first support is the silica gel material, and the second support is the plastic material.

Preferably, the first lens is further provided with a positioning groove matched with the positioning bump, so that the first lens and the first support are relatively fixed and do not rotate relatively.

Preferably, the first side limiting part and the second side limiting part are uniformly or non-uniformly arranged along the transverse direction of the film support.

A projector lamp comprising the projector lamp assembly of any of the above.

The utility model discloses a profection lamp subassembly has following advantage:

1. keep apart the pattern region of film at a confined space, block that film edge remains piece and external dust and foreign matter drop in the formation of image pattern within range, avoid forming bad phenomena such as projection blackspot, improve the formation of image effect.

2. The second support is hard material (for example, plastic), and first support is elastic material (for example, silica gel), and both assemble back first support and be in compression state to can exert pressure to the film, make the film of glass material inseparabler with the contact of second support, this also means that the distance between film and the second lens that is used for the formation of image is more stable, makes the focus more stable.

3. The size of the inner edge of the groove (namely the size of the inner edge of the second contact part) in a free state can be slightly smaller than the size of the outer edge of the film, so that the first support can completely wrap the side wall of the film, and even if the edge of the film is not easy to cause the falling of residual scraps due to transportation vibration, assembly shaking, friction with other parts and the like; in addition, because the first support is made of elastic materials, the first support can wrap residual scraps to prevent the residual scraps from falling off even if the first support generates the scraps.

The utility model discloses a projection lamp subassembly can be applied to car outside projection lamp products such as rear-view mirror projection lamp, usher projection lamp, trunk projection lamp, carpet lamp, also can be used to other projection lamp products of taking the projection pattern by the extension on, like outdoor ground projection lamp, indoor projection lamp, toy class projection lamp, carpet lamp.

The utility model discloses a profection lamp also has foretell beneficial effect correspondingly, and it can reduce the damaged clastic possibility of producing of film piece, also can prevent that piece etc. from getting into optical zone territory, can also improve the centralized stability, forms good projection imaging effect.

Drawings

Fig. 1 is a schematic perspective view of a projection lamp assembly according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of the embodiment of FIG. 1 with the first lens removed;

FIG. 4 is a schematic cross-sectional view of the embodiment of FIG. 1;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

FIG. 6 is a schematic view of the second holder of the embodiment of FIG. 1 mated with a second lens;

FIG. 7 is a schematic structural view of a first bracket of the embodiment of FIG. 1, from a bottom perspective;

fig. 8 is a schematic cross-sectional structure view of the film sheet of the embodiment of fig. 1.

Wherein: the lens module comprises a first lens 101, a second lens 102, a film 103, an upper chamber 104, a lower chamber 105, a pattern region 130, a light incident surface 131, a light emergent surface 132, a film side wall 133, a positioning groove 1011, a first bracket 20, a first side limiting part 21, a groove 22, a cavity 23, a first bracket lower end surface 201, a concave part 211, a first contact part 221, a second contact part 222, a first through hole 223, a second bracket 30, a connecting part 31, a second side limiting part 32, a contact matching part 33, a second through hole 34, a second bracket upper end surface 301 and a positioning bump 321.

Detailed Description

In order to better understand the invention for those skilled in the art and to define the claimed scope more clearly, the invention will be described in detail below with respect to certain specific embodiments of the invention. It should be noted that the following description is only a few examples of the present invention, and the specific and direct descriptions of the related structures are only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of the present invention. Conventional alternatives and substitutions made by those skilled in the art in light of the teachings of the present disclosure should be considered as within the scope of the present disclosure.

As shown in fig. 1 and 2, a projector assembly is formed by a first lens 101, a first bracket 20, a film 103, a second bracket 30 and a second lens 102 from top to bottom, which are combined to form the shape shown in fig. 1. Light enters from above the first lens 101, passes through the film 103, and then exits from the second lens 102 to form a projected image/pattern. The first lens 101 is generally a condensing lens, the second lens 102 is generally an imaging lens, and the material of the film and the pattern formed thereon are not limited. The lower end of the first bracket 20 is formed with a first bracket lower end surface 201, and the upper end of the second bracket 30 is formed with a second bracket upper end surface 301.

In the present embodiment, the first support 20 is preferably made of an elastic material, such as silicone, rubber, etc.; the second bracket 30 is preferably made of a rigid material, such as plastic.

Referring to fig. 2 and 3, the film 103 is disposed between the first frame 20 and the second frame 30, and is fixed by the two frames from the top to the bottom, and the three are formed into an integral structure, which may be called a film assembly, and the first lens 101 and the second lens 102 are respectively fitted on the top and the bottom to form a projection effect.

The first support 20 and the second support 30 are matched with each other to form a film support for fixing the film 103. The first lens 101 is further provided with a positioning slot 1011 matching with the positioning protrusion 321, so that the rotation of the first lens 101 and the film frame is limited by the positioning slot.

As shown in fig. 4, after the two lenses are fitted above and below the film sheet assembly in the up and down directions, respectively, two chambers, i.e., an upper chamber 104 and a lower chamber 105, which are partitioned by the film sheet 103, are formed inside the projection lamp assembly. Wherein the upper chamber 104 and the lower chamber 105 are the optical areas of the projection assembly.

Referring to fig. 6, a second bracket upper end surface 301 is formed at the top end of the second bracket 30, and a plurality of second side limiting members 32 are formed on the second bracket upper end surface 301 in an upward protruding manner. For example, as shown in fig. 6, there are four second side-limiting members 32, three second side-limiting members 32 have the same size and shape, and another second side-limiting member 32 is smaller.

The second bracket 30 also has a connecting member 31 protruding laterally outward for easy operation or connection, which is used for connecting other devices to integrally drive the film assembly to rotate or integrally move up and down in the projector.

Referring to fig. 7, a plurality of concave portions 211 are formed on a side surface of the first bracket 20 to serve as a first side limiting member 21, when the first bracket 20 is fitted to the second bracket 30, the second side limiting member 32 is fitted in the first side limiting member 21 to limit the first bracket 20 in a transverse direction, and when the first side limiting member and the second side limiting member are spaced apart and uniformly or non-uniformly arranged along a circumferential direction, the first bracket 20 and the second bracket 30 can be assembled or separated only by moving up and down. Here, the lateral direction refers to a horizontal direction (i.e., translation in the left-right direction or the inside-outside direction) shown in fig. 4, and the lateral limit refers to relative translation between the two brackets that does not occur horizontally.

A groove 22 for matching the film sheet 103 is formed in the lower end surface direction of the first bracket 20, as shown in fig. 7, the groove 22 is formed by inward recessing of the lower end surface of the first bracket 20, and has a first contact part 221 and a second contact part 222; wherein the first contact portion 221 is formed by a bottom wall of the recess 22, which is flat or at least partially flat, and the second contact portion 222 is formed by a side wall of the recess 22, which is flat or at least partially flat.

In the present embodiment, the second contact portions 222 are spaced apart from each other, and have a polygonal shape (a polygonal shape in cross section) as a whole, and a cavity 23 that does not contact the film is provided between adjacent second contact portions 222, so that the film side wall 133 can be covered well, and the film side wall can be conveniently fitted or fitted. Of course, it is also possible to continuously provide the second contact portion 222 and to perform the fitting and the fitting only depending on the material characteristics of the first bracket 20.

In the present embodiment, the film sheet 103 is also polygonal in shape as a whole, the overall shape of the film sheet 103 corresponds to the groove 22, the film sheet 103 has a plurality of sharp corners in the side wall direction, and when it is fitted in the groove 22, the cavity 23 is fitted at each corner position and does not contact the film sheet 103. This design can avoid the sharp edges and corners that form after the cutting of film to probably fish tail first support in assembly, transportation or use to play the effect of protection first support 20.

The first bracket 20 is further provided with a first through hole 223 formed through the first bracket 20 from the first contact portion 221, and the first contact portion 221 is provided around the first through hole 223; namely: the bottom wall of the recess 22 also has a first through hole 223 extending through the first bracket 20. Meanwhile, the second bracket 30 is further provided with a second through hole 34 which penetrates through and is arranged corresponding to the first through hole 223; wherein, the corresponding arrangement means that the first through hole 223 and the second through hole 34 at least partially overlap and correspond to form an optical area.

When the film 103 is fitted between the two supports, the first through hole 223 is formed as a light inlet of the film, and the second through hole 34 is formed as a light outlet. By such a way of soft top and hard bottom and press fit, the focal length is more stable.

Accordingly, as shown in fig. 8, the upper surface of the film sheet 103 is formed as a light incident surface 131, the lower surface is formed as a light emergent surface 132, the side surface is formed as a film side wall 133, and a pattern region 130 is disposed in the central region or other suitable position of the film sheet 103.

The upper end surface 301 of the second bracket is further provided with a contact matching part 33 formed by an annular ring protruding upwards, and the contact matching part is higher than the surface of the upper end surface 301 of the second bracket and has a flat surface. The contact fitting portion 33 is disposed around the second through hole 34 and is used to abut against the light-emitting surface 132 of the film sheet 103, and is preferably made of a hard material. If the flatness is fixed and unchanged, the surface of the hard material is contacted with the surface, the contact area is smaller, the contact and the attachment are tighter, the contact matching surface of the hard material can enable the matching between the hard material and the hard material to be tighter, and meanwhile, the focal length is more stable.

The outer edge dimension of the film sheet 103 is slightly smaller than the inner edge dimension of the groove 22, and the dimension of the first bracket 20 is also correspondingly slightly smaller than the dimension of the gap formed between the second side position-limiting members 32, so that the film sheet 103 is in interference fit with the first bracket 20, and the first bracket 20 is in interference fit with the second bracket 30. Therefore, the wrapping property of the side wall can be enhanced, and the focal length can be more stable.

In this embodiment, the depth of the groove 22 may be equal to the thickness of the film 103, or may be greater than or less than the thickness, and such thickness variation has an effect that the first support 20 has different coating effects on the film side wall 133, and may be specifically set as required. Preferably, the depth of the groove 22 is greater than or equal to the thickness of the film sheet 103 so that the film sheet 103 is completely wrapped by the second contact portion 222.

Although the first bracket 20 and the second bracket 30 are laterally limited by the second side limiting element 32 disposed on the second bracket 30 in the above embodiments, other known structures for achieving such lateral limitation are also possible. For example, the concave portion 211 provided on the side wall of the first bracket 20 is displaced toward the center to a plurality of positioning holes formed to penetrate the first bracket 20, and the positioning projections 321 are correspondingly positioned at positions where they can pass through the positioning holes, thereby achieving the lateral displacement limitation of both. Of course, it is dimensionally possible to fit the first bracket 20 on the second bracket 30 in a pressed state (compressed state) by making the pitch of the positioning projections 321 slightly smaller than the pitch between the recesses 211 or the positioning holes; or, the first support 20 and the second support 30 are provided with positioning holes correspondingly, and are matched with the two positioning holes through additional positioning columns for transverse limiting; or the side walls of the first bracket and the second bracket are limited and fixed through another hoop structure so that the first bracket and the second bracket are limited transversely. The compressed state means that the first frame 20 made of elastic material is compressed inward by the positioning protrusion 321 or the first lens 101 exerting an inward force on the first frame after being fitted in the second frame 30.

The projection lamp assembly of the utility model, through designing the first support made of elastic material, such as the first support made of silica gel material, and elastically pressing and assembling the film, reduces the possibility that the film generates glass scraps and foreign matters due to shaking and friction; and, the first support of silica gel material is designed for compressing tightly the plane and turning over the parcel region beyond the pattern, and the second support of stereoplasm material is designed for whole circle shielding structure protection pattern region to with the glass piece that produces film piece edge and the dust and the foreign matter separation of adsorbing on other parts outside the pattern region, in order to reach the bad mesh of solution black point.

A projection lamp comprises the projection lamp assembly.

Claims (10)

1. A projection lamp assembly comprises a film support for fixing a film (103), and is characterized in that the film support comprises a first support (20) and a second support (30), and the first support (20) and the second support (30) are respectively matched with the upper part and the lower part of the film (103) to fix the film (103);

a groove (22) used for accommodating the film (103) is formed in the lower end face (201) of the first support, the groove (22) comprises a first contact part (221) and a second contact part (222), the first contact part (221) is formed by the bottom wall of the groove (22), and the second contact part (222) is formed by the side wall of the groove (22);

the bottom wall of the first support (20) is also provided with a first through hole (223) penetrating through the first support (20), and the second support (30) is also provided with a second through hole (34) penetrating through and corresponding to the first through hole (223);

the first contact part (221) is abutted against the light incident surface (131) of the film sheet (103), the second contact part (222) is matched with the side wall (133) of the film sheet and limits the lateral displacement of the film sheet (103), and the light emitting surface (132) of the film sheet (103) is abutted against the upper end surface (301) of the second support.

2. A projector assembly as claimed in claim 1, wherein the projector assembly further comprises a first lens (101) and a second lens (102) respectively disposed above and below the film holder, wherein the lower end surface of the first lens (101) is in contact with and fitted to the upper end surface of the first holder (20), and the first holder (20) is made of an elastic material and is in a compressed state; the upper end face of the second lens (102) is in contact fit with the lower end face of the second support (30), and the second support (30) is made of hard materials.

3. A projector assembly as claimed in claim 2, wherein the second bracket upper end surface (301) is further provided with a contact fitting portion (33) which is protruded upward and surrounds the second through hole (34), and the contact fitting portion (33) abuts against the light-emitting surface (132) of the film (103).

4. Projection lamp assembly according to claim 2 or 3, characterized in that the inner side wall dimension of the second contact in the free state is smaller than the outer side wall dimension of the film (103).

5. Projection lamp assembly according to claim 4, characterized in that the depth of the groove (22) is equal to or greater than the thickness of the film (103), the shape of the second contact part (222) corresponds to the shape of the film (103), and the second contact part (222) wraps the film side wall (133).

6. Projection lamp assembly according to claim 5, characterized in that the foil (103) is polygonal in shape and the second contact portion (222) further has cavities (23) corresponding to the angular positions of the foil side walls (133) but not in contact therewith.

7. A projector assembly as claimed in claim 1, wherein the film holder further comprises a lateral limiting mechanism, the lateral limiting mechanism comprising a first lateral limiting member (21) and a second lateral limiting member (32) respectively disposed on the first holder (20) and the second holder (30), the first lateral limiting member (21) and the second lateral limiting member (32) cooperating to limit lateral displacement between the first holder (20) and the second holder (30).

8. Projection lamp assembly according to claim 7, characterized in that the first side stop (21) is formed by recesses (211) provided in the side wall of the first holder or positioning holes extending through the first holder (20), and the second side stop (32) is formed by positioning protrusions (321) protruding upwards along the upper end surface (301) of the second holder.

9. The projector assembly of claims 2, 3, 5 or 6 wherein the first lens (101) is a condenser lens, the second lens (102) is an imaging lens, the first support (20) is made of silicone, and the second support (30) is made of plastic; the first lens (101) is further provided with a positioning groove (1011) matched with the positioning bump (321), and the first side limiting part (21) and the second side limiting part (32) are uniformly or non-uniformly arranged along the transverse direction of the film support.

10. A projector lamp comprising a projector lamp assembly as claimed in any one of claims 1 to 9.

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