Projector

Abstract

The embodiment of the utility model discloses a projector, which comprises a shell, an equipment body, a base and a support arm, the shell is provided with a projection window; the equipment body is arranged in the shell and comprises an optical machine facing the projection window; the base is arranged below the shell, and a loudspeaker electrically connected with the equipment body is arranged in the base; one end of the supporting arm is connected to the base, the other end of the supporting arm is suspended above the base and connected with the shell, and the shell can rotate relative to the supporting arm. According to the projector provided by the embodiment of the utility model, the ray machine and the loudspeaker of the equipment body are separated, so that the influence of vibration on the signal output of the ray machine when the loudspeaker works is reduced, the shaking of a playing picture of the projector is avoided, and the film watching effect of a user is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of projection equipment, and in particular relates to a projector. Background Art

[0002] Projectors are currently widely used in homes, offices, schools, and entertainment venues. At present, projectors generally have the function of external sound, and the optical machine and speakers are generally integrated together in a box. In this way, when using the projector to play audio and video, the speaker will produce a certain vibration when playing audio, which will inevitably affect the output of the optical machine signal and may cause the playback picture to jitter, especially when the speaker plays at a high volume, the jitter is more obvious, which will affect the user's viewing experience. Utility Model Content

[0003] In order to solve at least one technical problem existing in the prior art, an embodiment of the utility model provides a projector and a plate connecting node structure.

[0004] The present invention provides a projector, which includes:

[0005] The housing has a projection window;

[0006] A device body, disposed in the housing, comprising an optical machine facing the projection window;

[0007] A base, arranged below the housing, wherein a speaker electrically connected to the device body is arranged in the base;

[0008] The support arm has one end connected to the base and the other end suspended above the base and connected to the shell, and the shell can rotate relative to the support arm.

[0009] Furthermore, the rotation angle range of the shell relative to the support arm is no more than 270 degrees.

[0010] Furthermore, the speaker comprises a protective shell, a mounting frame and a speaker body;

[0011] The protective shell comprises an upper shell and a lower shell which are buckled with each other, and a connecting port is provided at the connection between the upper shell and the lower shell;

[0012] The mounting bracket is arranged on the lower shell and has a relief opening opposite to the connecting opening;

[0013] The speaker body is arranged on the mounting frame.

[0014] Furthermore, the bottom center of the lower housing and the center of the mounting frame are hollow portions for accommodating the speaker body;

[0015] The top center of the upper shell is a sound guide plate facing the sound outlet surface of the speaker body, and a plurality of first sound outlet holes are arranged on the side of the upper shell.

[0016] Furthermore, a plurality of second sound outlet holes are provided on the lower shell below the connecting port.

[0017] Furthermore, the base includes a bottom plate, a side wall and a cover plate;

[0018] The bottom plate and the cover plate are respectively arranged at the bottom and top of the side wall, and a mounting column for connecting the speaker body is arranged on one side of the bottom plate facing the cover plate, and the cover plate is buckled on the top of the upper shell.

[0019] Furthermore, the side wall is provided with a through hole opposite to the connecting port.

[0020] Furthermore, the device body also includes a circuit board and a fan assembly disposed in the housing;

[0021] The fan assembly and the optical engine are electrically connected to the circuit board respectively.

[0022] Further, the housing includes a first housing, a second housing, a third housing and a fourth housing;

[0023] The first shell and the second shell are buckled together to form a barrel-shaped structure for accommodating the device body, and the third shell and the fourth shell are respectively connected to two ends of the barrel-shaped structure;

[0024] The third shell is provided with the projection window and a plurality of air outlet holes, and the fourth shell is provided with a plurality of air inlet holes.

[0025] Furthermore, the device body further comprises a battery assembly, and the battery assembly is arranged in the barrel-shaped structure toward the fourth housing;

[0026] The battery assembly includes a power connector, and a power interface is provided on the fourth housing at a position opposite to the power connector.

[0027] In the projector provided by the embodiment of the utility model, the device body is arranged in a shell and a projection window is opened on the shell, the speaker is arranged in the base, and the shell and the base are connected by a support arm, so that the optical machine and the speaker of the device body are separated, reducing the influence of vibration of the speaker on the optical machine signal output when working, avoiding jitter of the playback picture of the projector, and thus improving the user's viewing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A three-dimensional structural schematic diagram of a projector provided by an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of a three-dimensional exploded structure of a device body and a shell of a projector provided by an embodiment of the utility model;

[0031] Figure 3 A schematic exploded view of a three-dimensional structure of a base and a speaker of a projector provided in an embodiment of the utility model;

[0032] Figure 4 A three-dimensional structural schematic diagram of a projector provided by an embodiment of the utility model;

[0033] Figure 5 A three-dimensional structural schematic diagram of a device body and a shell of a projector provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0034] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0035] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Substantially" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. In addition, the term "coupled" or "electrically connected" includes any direct and indirect electrical coupling means. Therefore, if the text describes a first device coupled to a second device, it means that the first device can be directly electrically coupled to the second device, or indirectly electrically coupled to the second device through other devices or coupling means. The subsequent description of the specification is a preferred embodiment of the present utility model, but the description is for the purpose of illustrating the general principles of the present utility model, and is not used to limit the scope of the present utility model. The scope of protection of the present utility model shall be determined by the definition of the attached claims.

[0036] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity or system including the element. Specific embodiments

[0038] Please refer to Figure 1 , which is a three-dimensional structural schematic diagram of a projector provided in an embodiment of the utility model, wherein the projector includes a shell 10, a device body 20, a base 30 and a support arm 40.

[0039] Please combine Figure 2-5 The shell 10 has a projection window 110; the device body 20 is arranged in the shell 10, including an optical machine 210 facing the projection window 110; the base 30 is arranged below the shell 10, and a speaker 50 electrically connected to the device body 20 is provided in the base 30; one end of the support arm 40 is connected to the base 30, and the other end is suspended above the base 30 and connected to the shell 10, and the shell 10 can rotate relative to the support arm 40.

[0040] Specifically, the shell 10 is made of plastic or metal, and the projection window 110 is opened at one end of the shell 10; the device body 20 is arranged in the shell 10, so that the shell 10 protects it, and the device body 20 mainly includes the optical machine 210, and of course it also includes other components, and the optical machine 210 is set at a position facing the projection window 110 so as to project the optical signal onto the projection screen outside the device body 20; the projector of the utility model is different from other projection devices in that the base 30 and the device body 20 are separated from each other, rather than integrated together, and the base 30 and the device body 20 are connected by the support arm 4 0, that is, the bottom of the arm 40 is fixedly connected to the side wall of the base 30, the top of the arm 40 is connected to the shell 10, and the speaker 50 is arranged in the base 30, and the speaker 50 is electrically connected to the device body 20. The specific connection method can be connected through a communication cable arranged in the arm 40. The speaker 50 is used for audio playback of the audio file played by the device body 20. Such a design separates the speaker 50 from the device body 20, which can reduce the influence of the vibration of the speaker 50 when working on the signal output of the optical machine 210, avoid the jitter of the playback picture of the projector, and thus improve the viewing effect of the user.

[0041] In addition, the shell 10 can rotate relative to the arm 40. Here, a damper can be provided at the connection between the shell 10 and the arm 40, and the shell 10 can be rotated relative to the arm 40 by manual rotation by the user, thereby adjusting the angle of the light signal transmitted outward by the optical machine 210, that is, the projection angle of the projector can be adjusted.

[0042] Furthermore, the rotation angle range of the housing 10 relative to the arm 40 is no more than 270 degrees. That is, the rotation range of the housing 10 is no more than 270 degrees, and this 270-degree range can ensure that the projector can achieve a larger range of projection, thereby improving the use quality of the projector.

[0043] In addition, the speaker 50 includes a protective shell 510, a mounting bracket 520 and a speaker body 530; the protective shell 510 includes an upper shell 5101 and a lower shell 5102 that are interlocked, and a connecting port 5103 is provided at the connection between the upper shell 5101 and the lower shell 5102; the mounting bracket 520 is provided on the lower shell 5102, and has an avoidance port 5201 opposite to the connecting port 5103; the speaker body 530 is provided on the mounting bracket 520.

[0044] Here, the speaker 50 can be regarded as a relatively independent module, and the speaker body 530 is arranged on the mounting frame 520, and then wrapped by the protective shell 510 to protect the speaker body 530. Specifically, the upper shell 5101 and the lower shell 5102 are buckled together to form a boxed structure for containing the speaker body 530 and its mounting frame 520, and the connection port 5103 is opened at the connection between the upper shell 5101 and the lower shell 5102, so that the connection port 5103 connected to the bottom of the arm 40 is formed when the two are buckled; in addition, the mounting frame 520 is usually arranged on the lower shell 5102, and the avoidance port 5201 is arranged at a position opposite to the connection port 5103, and the avoidance port 5201 is also for connecting the bottom of the arm 40.

[0045] Furthermore, the bottom center of the lower housing 5102 and the center of the mounting frame 520 are hollow portions 540 for accommodating the speaker body 530;

[0046] The top center of the upper shell 5101 is a sound guide plate 550 facing the sound outlet surface of the speaker body 530 , and a plurality of first sound outlet holes 51011 are provided on the side of the upper shell 5101 .

[0047] Specifically, the bottom center of the lower shell 5101 and the center of the mounting frame 520 are both hollowed out and have the hollow portion 540, which is for accommodating the speaker body 530 and for quickly transmitting the sound emitted by the speaker body 530 to the outside. In addition, by providing the sound guide plate 550 at the top center of the upper shell 5101 facing the sound outlet surface of the speaker body 530, the sound emitted by the speaker body 530 can be transmitted downward, that is, toward the direction of the hollow portion 540, and a plurality of the first sound outlet holes 51011 are arranged around the side of the upper shell 5101 to facilitate the sound to be transmitted outward from the first sound outlet holes 51011 in multiple directions, thereby producing a 360-degree sound outlet effect, thereby improving the audio effect of the projector.

[0048] Furthermore, a plurality of second sound outlet holes 51021 are disposed on the lower shell 5102 below the connecting port 5103 .

[0049] Here, since the upper shell 5101 of the connection port 5103 is to open the connection port 5103 and is used to connect the support arm 40, the first sound hole 51011 cannot be set here. Therefore, a plurality of the second sound holes 51021 are set on the lower shell 5102 below the connection port 5103 to compensate for the fact that the sound is transmitted outward here, so as to achieve a true 360-degree sound effect, thereby further improving the audio effect of the projector.

[0050] In addition, the base 30 includes a bottom plate 310, a side wall 320 and a cover plate 330; the bottom plate 310 and the cover plate 330 are respectively arranged at the bottom and top of the side wall 320, and a mounting column 3101 for connecting the speaker body 530 is provided on one side of the bottom plate 310 facing the cover plate 330, and the cover plate 330 is buckled on the top of the upper shell 5101.

[0051] Specifically, the side of the bottom plate 310 facing away from the mounting column 3101 is used to be placed on a desktop, the lower shell 5102 is inserted into the mounting column 3101, the speaker body 530 and the mounting frame 520 are fixedly connected to the mounting column 3101 by screws, and then the upper shell 5101 is buckled onto the lower shell 5102, and then the side wall 320 is sleeved on the outer periphery of the protective shell 510, and finally the cover plate 330 is buckled onto the top of the upper shell 5101, thereby completing the connection of the base 30, where the base 30 can provide protection for the speaker 50 as a whole.

[0052] In addition, in order to enable the base 30 to be connected to the bottom of the arm 40, a through hole 3201 opposite to the connecting port 6103 is provided on the side wall 320, and the bottom of the arm 40 can pass through the through hole 3201 to form a connection with the speaker 50.

[0053] Furthermore, the device body 20 also includes a circuit board 220 and a fan assembly 230 disposed in the housing 10 ; the fan assembly 230 and the optical engine 210 are electrically connected to the circuit board 220 , respectively.

[0054] Specifically, the circuit board 220 is provided with the electronic components necessary for the projector, such as a Bluetooth module for communication, etc. The fan assembly 230 is also arranged in the shell 10 for ventilating and dissipating heat for the device body 20 to ensure that the projector has a more suitable operating temperature when working.

[0055] Furthermore, the housing 10 includes a first housing 101, a second housing 102, a third housing 103 and a fourth housing 104;

[0056] The first shell 101 and the second shell 102 are buckled together to form a barrel-shaped structure for accommodating the device body 20, and the third shell 103 and the fourth shell 104 are respectively connected to two ends of the barrel-shaped structure;

[0057] The third housing 103 is provided with the projection window 110 and a plurality of air outlet holes 1031 , and the fourth housing 104 is provided with a plurality of air inlet holes 1041 .

[0058] Here, the first shell 101, the second shell 102, the fourth shell 104 and the third shell 103 are respectively four parts of the shell 10, the first shell 101 and the second shell 102 are mutually buckled to form the barrel-shaped structure with two ends open, and the barrel-shaped structure is used to accommodate all the components of the device body 20. The third shell 103 and the fourth shell 104 are respectively connected to the two ends of the barrel-shaped structure, so that it forms a closed barrel-shaped structure. The two end faces of the barrel-shaped structure are also provided with the air outlet 1031 and the air inlet 1041. Specifically, the projection window 110 and a plurality of the air outlet 1031 are provided on the third shell 103, and a plurality of the air inlet 1041 are provided on the fourth shell 104. Here, the air outlet 1031 is a mesh of round holes, so that it has both ventilation effect and aesthetics, and the air inlet 1041 is generally grille-shaped to ensure that it has a large air intake.

[0059] In addition, the device body also includes a battery assembly 240, and the battery assembly 240 is arranged in the barrel-shaped structure facing the fourth shell 104; the battery assembly 240 includes a power connector 2401, and a power interface 1042 is provided on the fourth shell 104 at a position opposite to the power connector 2401.

[0060] Specifically, the battery assembly 240 is used to provide power support for other parts of the device body 20. The battery assembly 240 is generally arranged at the rear end of the shell 10, that is, arranged in the barrel-shaped structure facing the fourth shell 104, so that it is convenient for the cold air coming in from the air inlet 1041 to exchange heat with it, thereby improving its heat dissipation efficiency; in addition, the power connector 2401 is also arranged on the battery body facing the fourth shell 104, and the power interface 1042 is arranged on the fourth shell 104. The setting position of the power interface 1042 is directly opposite to the power connector 2401. The external power cord is inserted into the power interface 1042 with a solid line to form an electrical connection with the power connector 2401, thereby completing the charging of the battery assembly 240.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A projector, characterized in that: include: The housing has a projection window; A device body, disposed in the housing, comprising an optical machine facing the projection window; A base, arranged below the housing, wherein a speaker electrically connected to the device body is arranged in the base; The support arm has one end connected to the base and the other end suspended above the base and connected to the shell, and the shell can rotate relative to the support arm.

2. The projector according to claim 1, characterized in that The rotation angle range of the shell relative to the support arm is no more than 270 degrees.

3. The projector according to claim 1, characterized in that: The speaker comprises a protective shell, a mounting frame and a speaker body; The protective shell comprises an upper shell and a lower shell which are buckled with each other, and a connecting port is provided at the connection between the upper shell and the lower shell; The mounting bracket is arranged on the lower shell and has a relief opening opposite to the connecting opening; The speaker body is arranged on the mounting frame.

4. The projector according to claim 3, characterized in that: The bottom center of the lower housing and the center of the mounting frame are hollowed out portions for accommodating the speaker body; The top center of the upper shell is a sound guide plate facing the sound outlet surface of the speaker body, and a plurality of first sound outlet holes are arranged on the side of the upper shell.

5. The projector according to claim 3, characterized in that: A plurality of second sound outlet holes are arranged on the lower shell below the connecting port.

6. The projector according to claim 3, characterized in that: The base comprises a bottom plate, a side wall and a cover plate; The bottom plate and the cover plate are respectively arranged at the bottom and top of the side wall, and a mounting column for connecting the speaker body is arranged on one side of the bottom plate facing the cover plate, and the cover plate is buckled on the top of the upper shell.

7. The projector according to claim 6, characterized in that: The side wall is provided with a through hole opposite to the connecting port.

8. The projector according to claim 1, characterized in that: The device body also includes a circuit board and a fan assembly disposed in the housing; The fan assembly and the optical engine are electrically connected to the circuit board respectively.

9. The projector according to claim 8, characterized in that: The housing comprises a first housing, a second housing, a third housing and a fourth housing; The first shell and the second shell are buckled together to form a barrel-shaped structure for accommodating the device body, and the third shell and the fourth shell are respectively connected to two ends of the barrel-shaped structure; The third shell is provided with the projection window and a plurality of air outlet holes, and the fourth shell is provided with a plurality of air inlet holes.

10. The projector according to claim 9, characterized in that The device body further comprises a battery assembly, and the battery assembly is arranged in the barrel-shaped structure toward the fourth housing; The battery assembly includes a power connector, and a power interface is provided on the fourth housing at a position opposite to the power connector.

Images