Projector with external loudspeaker

Abstract

The utility model belongs to the technical field of projectors, and discloses a projector with an external loudspeaker, which comprises a projector main body and a loudspeaker main body, two ends of the projector main body are respectively provided with a light outlet and a mounting port, a connecting piece is arranged in the projector main body, the connecting piece is provided with a connecting column, the inner wall of the mounting port is provided with an inner flanging, and the loudspeaker main body is provided with a loudspeaker. The inner flanging extends towards the center of the mounting opening and is arranged around at least part of the mounting opening in the circumferential direction; the loudspeaker body is connected with a vibration reduction sleeve and a vibration reduction gasket, the vibration reduction gasket is arranged around the loudspeaker body and provided with an annular groove, the vibration reduction sleeve extends into the installation opening and is arranged on the connecting column in a sleeving mode, the inner flanging is matched with the annular groove in a clamped mode, and the vibration reduction sleeve and the vibration reduction gasket are both flexible material pieces. The connecting sleeve and the damping gasket can absorb the vibration impact force of the loudspeaker main body, thereby improving the working stability of the projector, facilitating the later maintenance and replacement of the damping sleeve or the damping gasket by a user, and prolonging the service life of the projector.

Description

Technical Field

[0001] This utility model relates to the field of projector technology, and in particular to a projector with an external speaker. Background Technology

[0002] Traditional projectors mostly integrate the speaker unit within the projector casing. Since the speaker unit vibrates during operation, this vibration can affect the stability of surrounding components such as circuit boards and optical modules. Therefore, vibration damping is usually necessary for the speaker unit. Currently, projectors on the market primarily use specially designed sheet metal parts and vibration-damping arms to mount the speaker unit, which is then connected to the vibration-damping arms to achieve vibration reduction. This type of projector has a complex structure, cumbersome assembly, and the vibration-damping arms are difficult to replace if they fail, thus affecting the projector's lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a projector with an external speaker, which has a simple structure, is easy to assemble, has good vibration damping effect, is convenient for later maintenance, and extends the service life of the projector.

[0004] To achieve this objective, the present invention adopts the following technical solution: a projector with an external speaker, comprising a projector body and a speaker body, wherein the projector body has a light outlet and a mounting port at both ends, and a connector is provided inside the projector body. The connector has a connecting post, the connecting post is arranged vertically and connected to a locking screw, and the inner wall of the mounting port has an inner flange, the inner flange extending toward the center of the mounting port and surrounding at least part of the circumference of the mounting port; the speaker body is connected to a vibration damping sleeve and a vibration damping washer, the vibration damping washer is arranged around the speaker body and has an annular groove, the vibration damping sleeve extends into the mounting port and is fitted onto the connecting post, and the vibration damping sleeve abuts between the connector and the locking screw, the inner flange engages with the annular groove, and both the vibration damping sleeve and the vibration damping washer are made of flexible materials.

[0005] Preferably, the inner peripheral wall of the vibration damping sleeve is provided with a plurality of first pressing parts, which are spaced apart along the circumference of the vibration damping sleeve, and the first pressing parts abut against the connecting column.

[0006] Preferably, the cross-section of the first pressing part is arc-shaped.

[0007] Preferably, the two end faces of the vibration damping sleeve are provided with a plurality of second pressing parts, which are spaced apart along the circumference of the vibration damping sleeve, and the second pressing parts on both sides abut against the head of the locking screw and the end face of the connector, respectively.

[0008] Preferably, the speaker body has a protrusion on the side facing the projector body, and the protrusion has a slot with an opening facing the projector body, and the vibration damping sleeve engages with the slot.

[0009] Preferably, the projector body is connected to a fixing screw, and the vibration damping washer has a connecting part on the side facing the projector body. The connecting part is connected to a nut, and the fixing screw passes through the connecting part and is connected to the nut.

[0010] Preferably, the vibration damping washer is provided with a guide portion, which is used to guide the inner flange into the annular groove.

[0011] Preferably, the inner peripheral wall of the vibration damping washer near the end of the projector body is provided with a plurality of first concave and convex portions, and the outer peripheral wall of the speaker body near the end of the projector body is provided with a plurality of second concave and convex portions, wherein the first concave and convex portions correspond one-to-one with the first concave and convex portions and fit together.

[0012] Preferably, along the depth direction of the annular groove, the height of the side wall of the annular groove near the projector body is less than the height of the other side wall, so that the outer peripheral surface of the projector body is flush with the outer peripheral surface of the speaker body.

[0013] Preferably, the speaker body has a flexible pad on the side facing the projector body, and the flexible pad abuts against the connector.

[0014] The beneficial effects of this utility model are as follows: By setting a vibration damping sleeve and a vibration damping washer, the vibration damping sleeve is fitted onto the connecting column, which can limit and fix the speaker body along the axial direction of the speaker body. The inner flange engages with the annular groove, which can limit and fix the speaker body along the circumferential direction of the speaker body. When the speaker body vibrates, the vibration damping sleeve and vibration damping washer can absorb the vibration impact force of the speaker body, avoid vibration of the projector body, ensure the stability of the projected image, and improve the working stability of the projector. In addition, both the vibration damping sleeve and the vibration damping washer are removable, which facilitates the user's later maintenance and replacement of the vibration damping sleeve or vibration damping washer, extending the service life of the projector. Attached Figure Description

[0015] Figure 1 This is a perspective view of a projector with an external speaker according to an embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of a projector with an external speaker according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the speaker body according to an embodiment of the present invention;

[0018] Figure 4This is a schematic diagram of the structure of the vibration damping sleeve according to an embodiment of the present invention.

[0019] In the diagram: 100, Projector body; 110, Light outlet; 120, Mounting port; 130, Connector; 131, Connecting post; 140, Inner flange; 200, Speaker body; 210, Vibration damping sleeve; 211, First pressing part; 212, Second pressing part; 220, Vibration damping washer; 221, Annular groove; 222, Connecting part; 223, First concave-convex part; 230, Protrusion; 231, Slot; 240, Second concave-convex part; 250, Sound damping pad. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] Reference Figures 1 to 4 As shown, a projector with an external speaker according to an embodiment of this application includes a projector body 100 and a speaker body 200. The projector body 100 has a light-emitting port 110 and a mounting port 120 at both ends. A lens is installed in the light-emitting port 110, which projects the image generated by the internal optical structure of the projector out of the projector body 100. The lens and optical structure technology inside the projector are mature and diverse, and will not be described in detail here. In this embodiment, the end of the projector body 100 with the light-emitting port 110 is defined as the front end, and the end with the mounting port 120 is defined as the rear end. This is specifically mentioned here and will not be described again hereafter.

[0025] The projector body 100 has a connector 130 inside, which is part of the bracket structure inside the projector body 100 that houses optical structures, control structures and other components. The connector 130 has a connecting post 131, which is arranged vertically and has a screw hole. A locking screw is connected to the connecting post 131 through the screw hole.

[0026] The inner wall of the mounting opening 120 is provided with an inner flange 140, which extends toward the center of the mounting opening 120 and is arranged circumferentially around at least part of the mounting opening 120. A damping sleeve 210 and a damping washer 220 are connected to the speaker body 200. The damping washer 220 is arranged around the speaker body 200 and has an annular groove 221. The damping sleeve 210 extends into the mounting opening 120 and is fitted onto the connecting post 131. The damping sleeve 210 abuts against the connecting member 130 and the locking screw. Specifically, both ends of the damping sleeve 210 abut against the end face of the connecting member 130 on the side where the connecting post 131 is located and the head of the locking screw, respectively. The inner flange 140 engages with the annular groove 221. Specifically, the outer shell of the projector body 100 can be configured as a split structure, allowing the user to initially fix the speaker body 200 by fitting the vibration damping sleeve 210 onto the connecting post 131, and then assemble the outer shell of the projector body 100 so that the inner flange 140 engages in the annular groove 221, thus connecting the speaker body 200 and the projector body 100. Both the vibration damping sleeve 210 and the vibration damping washer 220 are made of flexible materials. Optionally, the vibration damping sleeve 210 and the vibration damping washer 220 can be made of materials such as silicone, flexible rubber, or PVC soft rubber (soft polyvinyl chloride), as long as the vibration damping sleeve 210 and the vibration damping washer 220 can elastically deform to absorb impact.

[0027] Understandably, by setting up the damping sleeve 210 and damping washer 220, the damping sleeve 210 is fitted onto the connecting post 131, which can limit and fix the speaker body 200 along the axial direction (i.e., the front-to-back direction of the projector body 100). The damping sleeve 210 is connected to the locking screw, and the head of the locking screw can limit the damping sleeve 210 along the axial direction of the connecting post 131, preventing the damping sleeve 210 from sliding along the axial direction of the connecting post 131 during operation and improving the installation stability of the damping sleeve 210. The inner flange 140 is engaged with the annular groove 221, which can limit and fix the speaker body 200 along the circumferential direction of the speaker. When the speaker body 200 vibrates, the damping sleeve 210 and damping washer 220 can undergo elastic deformation. The damping sleeve 210 can absorb vibrations in the vertical direction, and the damping washer 220 can absorb vibrations in the front-back direction. The damping sleeve 210 and damping washer 220 work together to absorb the vibration impact of the speaker body 200, preventing the projector body 100 from vibrating, ensuring the stability of the projected image, and improving the projector's operational stability. In addition, both the damping sleeve 210 and the damping washer 220 are removable, making it convenient for users to maintain and replace the damping sleeve 210 or the damping washer 220 later, extending the projector's service life.

[0028] Furthermore, the vibration damping washer 220 is provided with a guide portion, and the guide portion and the chamfered structure or rounded corner structure provided on the inner edge of the annular groove 221 are used to guide the inner flange 140 into the annular groove 221.

[0029] By setting a guide section, when the user installs the speaker body 200, the guide section can guide the inner flange 140 to quickly snap into the ring groove 221, improving the ease of installation and removal of the projector.

[0030] Reference Figure 3 and Figure 4 As shown, it can be understood that the inner peripheral wall of the damping sleeve 210 is provided with a plurality of first pressing parts 211. The first pressing part 211 is a strip-shaped structure that protrudes radially toward the center of the damping sleeve 210. The cross section of the first pressing part 211 is arc-shaped. The plurality of first pressing parts 211 are arranged at intervals along the circumference of the damping sleeve 210. The first pressing part 211 abuts against the connecting column 131.

[0031] By providing multiple first pressing parts 211 that abut against the connecting post 131, the connection stability between the damping sleeve 210 and the connecting post 131 can be ensured. When the speaker body 200 vibrates in the front-back and left-right directions, the multiple first pressing parts 211 replace the original inner wall of the damping sleeve 210 to undergo elastic deformation, transforming the overall deformation of the original damping sleeve 210 into the local deformation of the multiple first pressing parts 211, increasing the deformation range and thus improving the impact resistance. In addition, the cooperation of multiple first pressing parts 211 increases the contact points between the damping sleeve 210 and the connecting post 131, making the vibration impact force of the speaker body 200 more effectively dispersed and reducing vibration transmission. Setting the cross-section of the first pressing part 211 to be arc-shaped can optimize the static structure of the first pressing part 211 and facilitate the elastic deformation of the first pressing part 211.

[0032] Reference Figure 2 and Figure 4 As shown, it can be understood that the two end faces of the damping sleeve 210 are provided with a plurality of second pressing parts 212. The second pressing part 212 is a strip-shaped structure that protrudes from the end face of the damping sleeve 210 along the axial direction of the damping sleeve 210. The cross-section of the second pressing part 212 is arc-shaped. The plurality of second pressing parts 212 are arranged at intervals along the circumference of the damping sleeve 210. The second pressing parts 212 on both sides abut against the head of the locking screw and the end face of the connector 130, respectively.

[0033] By providing the second pressing parts 212, when the speaker body 200 vibrates in the vertical direction, the multiple second pressing parts 212 replace the original damping sleeve 210 end face to produce elastic deformation, transforming the overall deformation of the original damping sleeve 210 into the local deformation of the multiple second pressing parts 212, thus increasing the deformation range and improving the impact resistance. In addition, the cooperation of the multiple second pressing parts 212 increases the contact points between the damping sleeve 210 and the locking screw and connector 130, so that the vibration impact force of the speaker body 200 is more effectively dispersed, reducing vibration transmission.

[0034] Alternatively, in other embodiments, the second pressing part 212 may also be configured as a plurality of protrusions arranged radially along the damping sleeve 210, which can also achieve the effect of approximately increasing the deformation range and thus improving the impact resistance, which will not be elaborated here.

[0035] Reference Figure 3 As shown, it can be understood that the speaker body 200 has a protrusion 230 on the side facing the projector body 100, and the protrusion 230 has a slot 231 with an opening facing the projector body 100. The vibration damping sleeve 210 is engaged with the slot 231.

[0036] When installing or removing the speaker body 200, the user can first install the damping sleeve 210 onto the connecting post 131, and then insert the speaker into the mounting port 120 from back to front, so that the inner flange 140 engages with the annular groove 221, thus installing the speaker body 200. Alternatively, the user can directly pull out the speaker body 200 from the mounting port 120 to disassemble it. By providing a slot 231 with its opening facing the projector body 100, the user can quickly install or remove the speaker body 200 without disassembling the projector body 100, further improving the ease of installation and removal and reducing the subsequent maintenance costs of the speaker body 200.

[0037] Furthermore, the inner peripheral wall of the damping washer 220 near the projector body 100 is provided with a plurality of first concave and convex portions 223, which are protruding structures or groove structures provided on the inner peripheral wall of the damping washer. The outer peripheral wall of the speaker body 200 near the projector body 100 is provided with a plurality of second concave and convex portions 240, and the first concave and convex portions 223 correspond one-to-one with each other and fit together.

[0038] By providing a first concave-convex portion 223 and a second concave-convex portion 240, the protruding first concave-convex portion 223 can be embedded in the recessed second concave-convex portion 240, and the recessed first concave-convex portion 223 can accommodate the protruding second concave-convex portion 240, so that the inner peripheral wall of the vibration damping washer 220 and the front end of the projector body 100 are locked together, and the vibration damping washer 220 is limited along the circumference of the projector body 100, further improving the connection stability between the vibration damping washer 220 and the projector body 100.

[0039] Optionally, the projector body 100 is also provided with a locking block on the rear side of the second concave-convex portion 240, and the shock-absorbing washer is provided with a locking groove 231 that engages with the locking block. When the shock-absorbing washer is connected to the projector body 100, the locking block is engaged in the locking groove 231, thereby further limiting the shock-absorbing washer.

[0040] Reference Figure 2 As shown, it can be understood that the projector body 100 is connected with a fixing screw, the vibration damping washer 220 has a connecting part 222 on the side facing the projector body 100, the connecting part 222 has a groove on the side away from the projector body 100, a nut is limited in the groove, and the fixing screw passes through the connecting part 222 and is connected to the nut.

[0041] By setting the connecting part 222, the connecting part 222, the fixing screw and nut can be matched to limit the installation height of the speaker body 200 in the front-to-back direction, so that the end face of the projector body 100 facing the speaker body 200 is tightly against the vibration damping washer 220 without gap, thereby improving the aesthetic appearance and vibration damping performance of the projector.

[0042] Reference Figure 2 and Figure 3 As shown, along the depth direction of the annular groove 221, the height of the side wall of the annular groove 221 near the projector body 100 is less than the height of the other side wall, so that the outer peripheral surface of the projector body 100 is flush with the outer peripheral surface of the speaker body 200.

[0043] Setting the outer periphery of the projector body 100 flush with the outer periphery of the speaker body 200 can effectively improve the aesthetic appearance of the speaker.

[0044] Furthermore, a flexible pad 250 is provided on the side of the speaker body 200 facing the projector body 100, and the flexible pad 250 abuts against the connector 130. Optionally, the flexible pad 250 can be made of materials such as silicone, flexible rubber or PVC soft rubber (soft polyvinyl chloride), which will not be described in detail here.

[0045] By providing a flexible pad 250 between the front side of the speaker body 200 and the connector 130 inside the projector body 100, the flexible pad 250 can further absorb the vibration and impact transmitted from the speaker body 200 to the inside of the projector body 100, disperse the impact force borne by the damping sleeve 210, and extend the service life of the damping sleeve 210.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A projector with an external speaker, characterized in that, include: The projector body (100) has a light outlet (110) and a mounting port (120) at both ends. The projector body (100) has a connector (130) inside. The connector (130) has a connecting post (131). The connecting post (131) is arranged vertically and connected with a locking screw. The inner wall of the mounting port (120) has an inner flange (140). The inner flange (140) extends toward the center of the mounting port (120) and is arranged around at least part of the circumference of the mounting port (120). The speaker body (200) is detachably connected to a damping sleeve (210) and a damping washer (220). The damping washer (220) is arranged around the speaker body (200) and has an annular groove (221). The damping sleeve (210) extends into the mounting port (120) and is sleeved on the connecting post (131). The damping sleeve (210) abuts against the connecting piece (130) and the locking screw. The inner flange (140) engages with the annular groove (221). Both the damping sleeve (210) and the damping washer (220) are made of flexible materials.

2. The projector with external speakers of claim 1, wherein, The inner peripheral wall of the vibration damping sleeve (210) is provided with a plurality of first pressing parts (211), and the plurality of first pressing parts (211) are arranged at intervals along the circumference of the vibration damping sleeve (210), and the first pressing parts (211) abut against the connecting post (131).

3. The projector with external speakers of claim 2, wherein, The first pressing part (211) has a circular arc shape in cross section.

4. The projector with external speakers of claim 1, wherein, The vibration damping sleeve (210) has multiple second pressing parts (212) on both sides. The multiple second pressing parts (212) are spaced apart along the circumference of the vibration damping sleeve (210). The second pressing parts (212) on both sides abut against the head of the locking screw and the end face of the connector (130) respectively.

5. The projector with external speakers of claim 1, wherein, The speaker body (200) has a protrusion (230) on the side facing the projector body (100), and the protrusion (230) has a slot (231) with an opening facing the projector body (100). The vibration damping sleeve (210) engages with the slot (231).

6. The projector with external speakers of claim 1, wherein, The projector body (100) is connected to a fixing screw. The vibration damping washer (220) has a connecting part (222) on the side facing the projector body (100). The connecting part (222) is connected to a nut. The fixing screw passes through the connecting part (222) and is connected to the nut.

7. The projector with external speakers of claim 1, wherein, The vibration damping washer (220) is provided with a guide portion, which is used to guide the inner flange (140) into the annular groove (221).

8. The projector with external speakers of claim 1, wherein, The vibration damping washer (220) has a plurality of first concave and convex portions (223) on the inner peripheral wall of one end near the projector body (100), and the speaker body (200) has a plurality of second concave and convex portions (240) on the outer peripheral wall of one end near the projector body (100). The first concave and convex portions (223) correspond one-to-one with each other and fit together.

9. The projector with external speakers of claim 1, wherein, Along the depth direction of the annular groove (221), the height of the side wall of the annular groove (221) near the projector body (100) is less than the height of the other side wall, so that the outer peripheral surface of the projector body (100) is flush with the outer peripheral surface of the speaker body (200).

10. The projector with external speakers of claim 1, wherein, The speaker body (200) has a flexible pad (250) on the side facing the projector body (100), and the flexible pad (250) abuts against the connector (130).

Images