CN219737974U - Single-chip liquid crystal projection optical machine and projector - Google Patents

Abstract

The utility model relates to a single-chip liquid crystal projector and a projector. The shell is provided with an installation cavity, a first installation hole communicated with the installation cavity and an installation structure are arranged on the shell, and the installation structure comprises an annular groove arranged on the side wall of the first installation hole and a receiving part arranged on one side of the annular groove away from the installation cavity. The bearing part is in annular step-shaped arrangement. The light cone support is the tube-shape setting, and the light cone support has the first light opening that communicates with the installation cavity, and the light cone support is equipped with the flange at the week side of first light opening correspondence ring channel, and one side that the flange was kept away from first light opening corresponds the adapting portion and is equipped with the butt portion. The annular groove is clamped with the flange on the light cone support, and the bearing part is mutually abutted with the abutting part on the light cone support, so that the shell is connected with the light cone support. The bearing part and the abutting part are arranged in an annular step shape, so that the single-chip liquid crystal projection optical machine has good sealing performance and foreign matters are prevented from entering.

Description

Single-chip liquid crystal projection optical machine and projector

Technical Field

The present utility model relates to the field of projector technologies, and in particular, to a single-chip liquid crystal projector and a projector.

Background

The projector is a common projection device, and when the projector works, the light emitted by the light source needs to be processed by the optical processing component and then projected onto the liquid crystal screen. The light cone is one of the optical devices commonly used in the optical processing assembly, and is usually installed in the light cone bracket of the projection light machine, but the tightness between the light machine shell and the light cone bracket of the traditional single-chip liquid crystal projection light machine is poor, so that foreign matters such as dust can enter the single-chip liquid crystal projection light machine from a gap between the light machine shell and the light cone bracket of the single-chip liquid crystal projection light machine, and the normal operation of the optical processing assembly and the liquid crystal screen is affected.

Disclosure of Invention

Based on this, it is necessary to provide a single-chip liquid crystal projector and a projector aiming at the problem that the normal operation of an optical processing assembly and a liquid crystal screen is affected because the sealing performance between the light machine housing and the light cone bracket of the traditional single-chip liquid crystal projector is poor, and dust and other foreign matters possibly enter the single-chip liquid crystal projector from the gap between the light machine housing and the light cone bracket of the single-chip liquid crystal projector.

According to a first aspect of the present utility model, a monolithic liquid crystal projector engine is presented, comprising:

a housing having a mounting cavity; the shell is provided with a first mounting hole and a mounting structure which are communicated with the mounting cavity; the mounting structure comprises an annular groove arranged on the side wall of the first mounting hole and a bearing part arranged on one side of the annular groove away from the mounting cavity; the bearing part is arranged in an annular step shape; and

the light cone bracket extends along a first direction and is arranged in a cylindrical shape; the light cone support is provided with a first light through hole communicated with the mounting cavity, a flange is arranged on the light cone support on the periphery of the first light through hole corresponding to the annular groove, and an abutting portion is arranged on one side, away from the first light through hole, of the flange corresponding to the bearing portion.

In one embodiment, the housing comprises a first housing and a second housing which are detachably connected, and the first housing and the second housing enclose the mounting cavity;

the mounting structure comprises a first part arranged on the first shell and a second part arranged on the second shell; the receptacle includes at least two steps.

In one embodiment, the housing is provided with a mounting channel, the first mounting hole is formed in a side wall of the mounting channel, the housing further comprises a second mounting hole which is formed in the other side wall of the mounting channel opposite to the first mounting hole, and the second mounting hole is used for communicating the mounting channel with the outside;

the light cone support is installed in the installation channel, and the light cone support comprises a second light through hole communicated with the second installation hole.

In one embodiment, the mounting structure further includes a bearing step disposed at one end of the second mounting hole near the first mounting hole, where the bearing step is disposed in an annular shape;

the part of the light cone bracket, which is positioned at the second light-transmitting port, is abutted against the bearing step along the first direction.

In one embodiment, the installation cavity comprises a first cavity, a second cavity and a third cavity which are mutually communicated, the first cavity is communicated with the first light port, and the second cavity and the third cavity are oppositely arranged at two sides of the light cone bracket in the second direction;

the single-chip liquid crystal projector further comprises an air supply device arranged in the second chamber and a heat dissipation device arranged in the third chamber.

In one embodiment, the single-chip liquid crystal projector further includes a liquid crystal screen installed in the first chamber, and the liquid crystal screen is disposed opposite to the first light-transmitting port;

the air supply device includes:

the fan is arranged in the second cavity and is provided with an air outlet; and

the air guide structure is arranged in the second cavity, and is provided with an air guide channel, one end of which is communicated with the air outlet, and the other end of the air guide channel is arranged towards the liquid crystal screen along the second direction;

the single-chip liquid crystal projection optical machine further comprises an installation seat which is arranged in the second cavity and connected with the light cone bracket, and the air guide channel is arranged on the installation seat.

In one embodiment, the fan includes:

the fan shell is provided with the air outlet and is arranged in the second cavity; the air outlet is provided with a strong air end and a weak air end which are oppositely arranged; and

a fan main body installed in the fan housing;

the air guide structure is provided with a plurality of air guide channels which are arranged in parallel and respectively connected with the air outlet and the first light-passing opening, and the air guide channels are obliquely arranged from the strong air end of the fan main body to the weak air end of the fan main body.

In one embodiment, the fan further comprises a first bumper mounted between the housing and the fan casing; and/or

The single-chip liquid crystal projection optical machine further comprises a first lens and a second buffer piece, wherein the first lens is covered on the first light-transmitting opening of the light cone support, and the second buffer piece is arranged between the first lens and the light cone support.

In one embodiment, the monolithic liquid crystal projector further comprises a light cone, and the light cone is installed in the light cone bracket;

and a plurality of heat dissipation holes are formed in the side wall of the light cone support.

According to a second aspect of the present utility model, there is also provided a projector comprising a monolithic liquid crystal projector engine as described above, the monolithic liquid crystal projector engine comprising:

a housing having a mounting cavity; the shell is provided with a first mounting hole and a mounting structure which are communicated with the mounting cavity; the mounting structure comprises an annular groove arranged on the side wall of the first mounting hole and a bearing part arranged on one side of the annular groove away from the mounting cavity; the bearing part is arranged in an annular step shape; and

the light cone bracket extends along a first direction and is arranged in a cylindrical shape; the light cone support is provided with a first light through hole communicated with the mounting cavity, a flange is arranged on the light cone support on the periphery of the first light through hole corresponding to the annular groove, and an abutting portion is arranged on one side, away from the first light through hole, of the flange corresponding to the bearing portion.

In the technical scheme of the utility model, the light cone bracket is limited and fixed by the shell through the mounting structure, so that the light cone bracket is mounted on the shell. Specifically, the mounting structure passes through flange joint on ring channel and the light cone support to the mounting structure can also be through the mutual butt of butt portion on adapting portion and the light cone support, thereby with light cone support connection. It should be noted that, the bearing part is annular step-shaped, and the same is true for the abutting part that the corresponding bearing part set up, this makes the light cone support accomplish the installation back through mounting structure, and bearing part and abutting part can make monolithic liquid crystal projector machine have good leakproofness through mutual butt to prevent that the foreign matter from getting into.

Compared with the traditional single-chip liquid crystal projector, the single-chip liquid crystal projector has the advantages that the light cone support is more tightly installed and better in sealing performance, so that the single-chip liquid crystal projector can keep stable working.

Drawings

FIG. 1 is a schematic diagram of a single-chip liquid crystal projector according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the first housing in FIG. 1;

FIG. 3 is a schematic view of the second housing in FIG. 1;

FIG. 4 is a schematic diagram of a portion of the structure of the single-chip LCD projector of FIG. 1;

FIG. 5 is an exploded view of the structure of FIG. 4;

FIG. 6 is a schematic cross-sectional view of the single-chip liquid crystal projector of FIG. 1;

FIG. 7 is a schematic cross-sectional view of the single-panel LCD projector of FIG. 1 at another angle.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Single-chip liquid crystal projection optical machine	1	Shell body
1a	First shell body	1b	Second shell
				11	Mounting cavity	111	First chamber
112	A second chamber	113	Third chamber
				12	First mounting hole	13	Mounting structure
131	Annular groove	132	Bearing step
				133	Bearing part	14	Second mounting hole
15	Mounting channel	2	Light cone bracket
				21	First light-transmitting port	22	Second light-transmitting port
23	Flange	24	Heat dissipation hole
				25	Abutment portion	3	Air supply device
31	Fan with fan body	311	Fan casing
				312	Air outlet	312a	Strong wind end
312b	Weak wind end	32	Air guide channel
				33	First buffer member	4	First lens
5	Light cone	6	Second buffer member
				N	First direction	7	Mounting base
M	Second direction	\	\

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The projector is a common projection device, and when the projector works, the light emitted by the light source needs to be processed by the optical processing component and then projected onto the liquid crystal screen. The light cone is one of the optical devices commonly used in the optical processing assembly, and is usually installed in the light cone bracket of the projection light machine, but the tightness between the light machine shell and the light cone bracket of the traditional single-chip liquid crystal projection light machine is poor, so that foreign matters such as dust can enter the single-chip liquid crystal projection light machine from a gap between the light machine shell and the light cone bracket of the single-chip liquid crystal projection light machine, and the normal operation of the optical processing assembly and the liquid crystal screen is affected.

According to researches, the inventor of the utility model discovers that the light cone bracket in the traditional single-chip liquid crystal projection optical machine is arranged on the shell through screw connection, but the screw connection position of the light cone bracket is limited, and the screw connection area is smaller. Therefore, a large gap exists between the light cone support and the shell, so that foreign matters easily enter the single-chip liquid crystal projection optical machine from a gap between the light cone support and the shell, and the normal operation of the single-chip liquid crystal projection optical machine is affected.

In view of this, the present utility model provides a projector including a single-chip liquid crystal projector, and any projector including the single-chip liquid crystal projector belongs to the projector of the present utility model. Fig. 1 to fig. 7 are schematic structural diagrams of a single-chip lcd projector according to an embodiment of the present utility model.

Referring to fig. 1 to 4, a single-chip lcd projector 100 according to the present utility model includes a housing 1 and a light cone bracket 2. The shell 1 is provided with a mounting cavity 11, a first mounting hole 12 and a mounting structure 13 which are communicated with the mounting cavity 11 are arranged on the shell 1, the mounting structure 13 comprises an annular groove 131 arranged on the side wall of the first mounting hole 12 and a bearing part 133 arranged on one side, far away from the mounting cavity 11, of the annular groove 131, and the bearing part 133 is in an annular step-shaped arrangement. The light cone holder 2 extends in a first direction and is arranged in a cylindrical shape. The light cone holder 2 has a first light-passing opening 21 for communicating with the mounting chamber 11, the light cone holder 2 has a flange 23 corresponding to the annular groove 131 on the peripheral side of the first light-passing opening 21, and a contact portion 25 corresponding to the receiving portion 133 on the side of the flange 23 away from the first light-passing opening 21.

In the present utility model, the first direction N is the opposite direction, and in a specific application, the first direction N may be the axial direction of the light cone holder 2.

In the technical scheme of the utility model, the light cone bracket 2 is limited and fixed by the shell 1 through the mounting structure 13, so that the light cone bracket 2 is mounted on the shell. Specifically, the mounting structure 13 is engaged with the flange 23 on the light cone holder 2 through the annular groove 131, and the mounting structure 13 can also be connected to the light cone holder 2 by abutting the abutment portion 25 on the light cone holder 2 with the abutment portion 133. It should be noted that, the receiving portion 133 is disposed in an annular step shape, and the same is true for the abutting portion 25 disposed corresponding to the receiving portion 133, so that after the light cone bracket 2 is mounted by the mounting structure 13, the receiving portion 133 and the abutting portion 25 abut against each other to provide a good sealing performance for the single-chip liquid crystal projector 100, so as to prevent foreign matters from entering.

Compared with the traditional single-chip liquid crystal projector 100, the single-chip liquid crystal projector 100 provided by the utility model has the advantages that the light cone bracket 2 is more tightly installed and the tightness is better, so that the single-chip liquid crystal projector 100 can keep stable working.

Referring to fig. 2 and 3, in some embodiments, the housing 1 includes a first housing 1a and a second housing 1b detachably connected, and the first housing 1a and the second housing 1b enclose a mounting cavity 11. The mounting structure 13 includes a first portion 131a provided on the first housing 1a, and a second portion 131b provided on the second housing 1b.

The housing 1 is provided with a mounting cavity 11, and in practice, part of the components of the single-chip liquid crystal projector 100 will be mounted in the mounting cavity 11. The housing 1 thus includes the first housing 1a and the second housing 1b detachably connected, thereby facilitating the installation of components. In fact, the first portion 131a and the second portion 131b of the mounting structure 13 are formed into a ring shape when the first housing 1a is connected to the second housing 1b, and are formed around the outer periphery of the first light-transmitting opening 21. That is, in the present embodiment, after the first housing 1a is connected to the second housing 1b, the mounting structure 13 can encircle the outer periphery of the first light-transmitting port 21, so that the connection between the first light-transmitting port 21 and the mounting cavity 11 is completely sealed, and further, foreign matters are prevented from entering the monolithic liquid crystal projector 100 from the gap between the light cone bracket 2 and the housing 1.

The receiving portion 133 includes at least two steps, and correspondingly, the abutment portion 25 of the light cone holder 2 is also provided with at least two steps. When the light cone bracket 2 is installed, at least two steps of the bearing part 133 are in one-to-one corresponding abutting connection with at least two steps of the abutting part 25, so that the sealing effect between the light cone bracket 2 and the shell 1 is better.

In some embodiments, the housing is provided with a mounting channel 15, the first mounting hole 12 is disposed on a side wall of the mounting channel 15, and the housing 1 further includes a second mounting hole 14 disposed on another side wall of the mounting channel 15 opposite to the first mounting hole 12, and the second mounting hole 14 is used to communicate the mounting channel 15 with the outside. The light cone holder 2 is mounted in the mounting channel 15, and the light cone holder 2 comprises a second light through opening 22 communicating with the second mounting hole 14.

One end of the light cone bracket 2 is connected with the shell 1 through the mounting structure 13, and the other end is abutted with the peripheral side of the second mounting hole 14, so that the light cone bracket 2 is mounted more stably. It should be noted that, the single-chip liquid crystal projector 100 further includes a light source assembly disposed at the second light-passing port 22, so that the light emitted from the light source assembly can enter the mounting cavity 11 to complete imaging after sequentially passing through the second light-passing port 22 and the first light-passing port 21.

In some embodiments, the mounting structure 13 further includes a bearing step 132 disposed at an end of the second mounting hole 14 near the first mounting hole 12, where the bearing step 132 is disposed in an annular shape. The portion of the light cone bracket 2 at the second light through hole 22 abuts against the bearing step 132 along the first direction N.

In the specific installation, the part of the light cone bracket 2 located at the first light through hole 21 is provided with the flange 23 and the abutting part 25, and can be connected with the installation structure 13 through the flange 23 and the abutting part 25, while the part of the light cone bracket 2 located at the first light through hole 21 is close to the second installation hole 14, and thus is contacted with one end of the second installation hole 14 close to the first installation hole 12. Therefore, in this embodiment, the end of the second mounting hole 14 near the first mounting hole 12 is provided with a bearing step 132, and the bearing step 132 will abut against the light cone bracket 2, so as to further increase the tightness between the light cone bracket 2 and the housing 1, and prevent foreign matters from entering the light cone bracket 2 and the mounting cavity 11.

In some embodiments, the mounting cavity 11 includes a first chamber 111, a second chamber 112 and a third chamber 113 that are mutually communicated, the first chamber 111 is communicated with the first light-transmitting port 21, and the second chamber 112 and the third chamber 113 are oppositely disposed at two sides of the light cone bracket 2 in the second direction M. The single-chip liquid crystal projector 100 further includes an air supply device 3 mounted in the second chamber 112 and a heat dissipation device mounted in the third chamber 113.

In the present utility model, the second direction M is a relative direction, and the second direction M may be set as a relative direction of the second chamber 112 and the third chamber 113.

In a specific application, the temperature of the single-chip liquid crystal projector 100 may gradually increase during operation, which may affect the normal operation of the optical elements in the mounting cavity 11. The installation cavity 11 actually includes a first chamber 111, a second chamber 112 and a third chamber 113, wherein the first chamber 111 is mainly used for installing various functional elements, the second chamber 112 is used for installing the air supply device 3, and the third chamber 113 is used for installing a heat dissipation device. When the single-chip liquid crystal projector 100 is in operation, the air supply device 3 is configured to supply air in the second direction M, so that the hot air in the first chamber 111 is blown to the third chamber 113, and the heat dissipation device cools the hot air by dissipating heat with the outside, thereby reducing the temperature in the first chamber 111 and completing cooling.

Referring to fig. 4 and 5, in some embodiments, the single-chip lcd projector 100 further includes a lcd installed in the first chamber 111, and the lcd is disposed opposite to the first light-transmitting opening 21. The air supply device 3 includes a fan 31 and a flow guiding structure 32. The fan 31 is installed in the second chamber 112, and the fan 31 has an air outlet 312. The air guiding structure 32 is disposed in the second chamber 112, and the air guiding structure 32 has an air guiding channel 32 with one end communicating with the air outlet 312, and the other end of the air guiding channel 32 is disposed towards the liquid crystal screen along the second direction M. The single-chip liquid crystal projector 100 further includes a mounting seat 7 disposed in the second chamber 112 and connected to the light cone bracket 2, and the air guide channel 32 is mounted on the mounting seat 7.

The air supply device 3 blows air through the fan 31, and guides the air flow blown out by the fan 31 to the first light through hole 21 through the flow guiding structure 32, so as to dissipate heat for the mounting cavity 11 and the light cone bracket 2, and enable all components in the single-chip liquid crystal projector 100 to be at a proper working temperature. In addition, in the single-chip liquid crystal projector 100 provided by the utility model, the air guide channel 32 is arranged on the mounting seat 7, and the mounting seat 7 is connected with the light cone bracket 2, so that the installation of the air supply device 3 is more compact, and the installation space is saved.

Referring to fig. 4, 5 and 7, in some embodiments, the fan 31 includes a fan housing 311 and a fan 31 body. The fan housing 311 is provided with an air outlet and is installed in the second chamber 112. The air outlet 312 has a strong air end 312a and a weak air end 312b. The fan 31 body is mounted in the fan housing 311, and the air guiding structure 32 has a plurality of air guiding channels 32 arranged in parallel and respectively connected to the air outlet and the first light-guiding opening 21, and the plurality of air guiding channels 32 are arranged in a deviated manner from the strong air end 312a of the fan 31 body toward the weak air end 312b of the fan 31 body.

A mounting space is provided in the fan housing 311, and the fan 31 body is mounted in the fan housing 311. When the main body of the fan 31 rotates, the air flow is blown out from the air outlet on the fan housing 311. When the main body of the fan 31 rotates, the blown air flow is not uniformly distributed, and the air outlet 312 has a strong air end 312a with concentrated air flow and a weak air end 312b with dispersed air flow. This results in that the air flow blown to the first light-transmitting opening 21 by the main body of the fan 31 is concentrated in a part of the area, so that the heat dissipation effect is better, while the air flow in other areas is less, so that the heat dissipation effect is worse. Specifically, the fan body includes a motor and blades mounted on a motor shaft, and the blades are driven by the motor to rotate to blow air to the air outlet 312.

Therefore, in the present embodiment, the plurality of air guiding channels 32 connecting the air outlet and the first light-passing opening 21 are respectively arranged from the strong air end 312a of the main body of the fan 31 to the weak air end 312b of the main body of the fan 31, so that the air flow blown to the liquid crystal display by the main body of the fan 31 is more uniform, and thus, the heat dissipation in each area can be effectively achieved.

Referring to fig. 5, in an embodiment of the utility model, the fan 31 further includes a first buffer member 33, and the first buffer member 33 is installed between the housing 1 and the fan casing 311.

Vibrations are inevitably generated when the fan 31 rotates, and this may affect the normal operation of other components. Therefore, in the present embodiment, the first buffer member 33 is further disposed between the fan housing 311 and the housing 1, and the first buffer member 33 has a certain elasticity and can play a role in buffering, so as to reduce the influence of the vibration of the fan 31 on the housing 1 and other components.

Referring to fig. 5 and 7, in another embodiment of the utility model, the single-chip liquid crystal projector 100 further includes a first lens 4 and a second buffer 6, the first lens 4 is disposed at the first light-transmitting opening 21 of the light cone bracket 2, and the second buffer 6 is disposed between the first lens 4 and the light cone bracket 2.

The first lens 4 is a component part in the optical processing assembly, the first lens 4 is covered at the first light-transmitting opening 21, and the first lens 4 is used for processing the light rays emitted from the light cone bracket 2 at the first light-transmitting opening 21. The optical element has higher requirements on stability during operation, so that a second buffer piece 6 is further arranged between the first lens 4 and the light cone bracket 2, thereby further slowing down the vibration of the first lens 4, increasing the stability of the first lens 4 and ensuring the normal operation of the first lens 4.

Of course, the single-chip liquid crystal projector 100 may be provided with the first buffer member 33 and the second buffer member 6 at the same time, so that the vibration resistance of the single-chip liquid crystal projector 100 is enhanced.

Referring to fig. 4 and 5, in some embodiments, the single-chip liquid crystal projector 100 further includes a light cone 5, and the light cone 5 is installed in the light cone bracket 2. The side wall of the light cone bracket 2 is provided with a plurality of heat dissipation holes 24.

During operation of the single-chip liquid crystal projector 100, the light cone 5 generates a certain amount of heat, and the temperature rise affects the performance of the light cone 5. In this embodiment, therefore, a plurality of heat dissipation holes 24 are provided on the side wall of the light cone holder 2, thereby improving the heat dissipation capability of the light cone 5.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A single-chip liquid crystal projector, comprising:

a housing having a mounting cavity; the shell is provided with a first mounting hole and a mounting structure which are communicated with the mounting cavity; the mounting structure comprises an annular groove arranged on the side wall of the first mounting hole and a bearing part arranged on one side of the annular groove away from the mounting cavity; the bearing part is arranged in an annular step shape; and

the light cone bracket extends along a first direction and is arranged in a cylindrical shape; the light cone support is provided with a first light through hole communicated with the mounting cavity, a flange is arranged on the light cone support on the periphery of the first light through hole corresponding to the annular groove, and an abutting portion is arranged on one side, away from the first light through hole, of the flange corresponding to the bearing portion.

2. The single-chip liquid crystal projector of claim 1, wherein the housing comprises a first housing and a second housing detachably connected, the first housing and the second housing enclosing to form the mounting cavity;

the mounting structure comprises a first part arranged on the first shell and a second part arranged on the second shell; the receptacle includes at least two steps.

3. The single-chip liquid crystal projector according to claim 1, wherein the housing is provided with a mounting channel, the first mounting hole is formed in a side wall of the mounting channel, the housing further comprises a second mounting hole formed in another side wall of the mounting channel opposite to the first mounting hole, and the second mounting hole is used for communicating the mounting channel with the outside;

the light cone support is installed in the installation channel, and the light cone support comprises a second light through hole communicated with the second installation hole.

4. The single-chip liquid crystal projector according to claim 3, wherein the mounting structure further comprises a carrying step provided at one end of the second mounting hole near the first mounting hole, the carrying step being provided in a ring shape;

the part of the light cone bracket, which is positioned at the second light-transmitting port, is abutted against the bearing step along the first direction.

5. The single-chip liquid crystal projector according to claim 1, wherein the mounting cavity comprises a first cavity, a second cavity and a third cavity which are communicated with each other, the first cavity is communicated with the first light port, and the second cavity and the third cavity are oppositely arranged at two sides of the light cone bracket in the second direction;

the single-chip liquid crystal projector further comprises an air supply device arranged in the second chamber and a heat dissipation device arranged in the third chamber.

6. The single-chip liquid crystal projector according to claim 5, further comprising a liquid crystal screen mounted in the first chamber, wherein the liquid crystal screen is disposed opposite to the first light-transmitting port;

the air supply device includes:

the fan is arranged in the second cavity and is provided with an air outlet; and

the air guide structure is arranged in the second cavity, and is provided with an air guide channel, one end of which is communicated with the air outlet, and the other end of the air guide channel is arranged towards the liquid crystal screen along the second direction;

the single-chip liquid crystal projection optical machine further comprises an installation seat which is arranged in the second cavity and connected with the light cone bracket, and the air guide channel is arranged on the installation seat.

7. The single-chip liquid crystal projector of claim 6, wherein the fan comprises:

the fan shell is provided with the air outlet and is arranged in the second cavity; the air outlet is provided with a strong air end and a weak air end which are oppositely arranged; and

a fan main body installed in the fan housing;

the air guide structure is provided with a plurality of air guide channels which are arranged in parallel and respectively connected with the air outlet and the first light-passing opening, and the air guide channels are obliquely arranged from the strong air end of the fan main body to the weak air end of the fan main body.

8. The single-chip liquid crystal projector of claim 7, wherein the fan further comprises a first buffer mounted between the housing and the fan housing; and/or

The single-chip liquid crystal projection optical machine further comprises a first lens and a second buffer piece, wherein the first lens is covered on the first light-transmitting opening of the light cone support, and the second buffer piece is arranged between the first lens and the light cone support.

9. The single-chip liquid crystal projector of any of claims 1 to 8, further comprising a light cone mounted within the light cone bracket;

and a plurality of heat dissipation holes are formed in the side wall of the light cone support.

10. A projector comprising a single-chip liquid crystal projector as claimed in any one of claims 1 to 9.