Projection module and projection sound box

Abstract

The utility model discloses a kind of projection module and projection sound box, projection module includes: shell and light emitting component, the light emitting component is set in the shell, and by the top surface of the shell, light ray is emitted, the shell has and is mutually parallel front side surface and rear side surface along first direction arrangement, the included angle of the light ray of the light emitting component and horizontal plane is greater than 0 ° and less than 90 °, and the light ray is directed to the rear side of the shell. According to the projection module of the utility model embodiment, by making the included angle of the light ray of light emitting component and horizontal plane greater than 0 ° and less than 90 °, and light ray is directed to the rear side of shell, it can be realized to project backward, can reduce the probability that user blocks projection picture, when projection module control is carried out, user also will not block projection picture, more easily learn projection content, to carry out the control of projection module based on projection content, it can reduce control difficulty, to improve use experience.

Description

Technical Field

[0001] This utility model relates to the field of multimedia equipment technology, and in particular to a projection module and a projection speaker. Background Technology

[0002] In related technologies, the projection module of the projection speaker is a front-facing projection, but the user needs to face away from the projection module to view the projected image. This makes it easy for the user to block the emitted light, resulting in a poor user experience. Utility Model Content

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a projection module capable of rear projection, which can improve the user's viewing experience and overall user experience.

[0004] This utility model further proposes a projection speaker using the above-mentioned projection module.

[0005] In a first aspect, the present invention provides a projection module, comprising: a housing and a light-emitting component, wherein the light-emitting component is disposed inside the housing and emits light rays from the top surface of the housing, the housing having a front surface and a rear surface arranged in a first direction and parallel to each other, the angle between the emitted light rays of the light-emitting component and the horizontal plane being greater than 0° and less than 90°, and the emitted light rays pointing towards the rear side of the housing.

[0006] According to the projection module of this utility model embodiment, by making the angle between the emitted light of the light-emitting component and the horizontal plane greater than 0° and less than 90°, and the emitted light pointing towards the rear side of the housing, rearward projection can be achieved. Moreover, the projected image is located above the projection module, which can reduce the probability of the user obstructing the projected image. When controlling the projection module, the user will not obstruct the projected image, making it easier to know the projected content. Controlling the projection module based on the projected content can reduce the difficulty of control and improve the user experience.

[0007] According to some embodiments of the present invention, the light-emitting component is disposed adjacent to the front surface of the housing.

[0008] According to some embodiments of the present invention, the projection module further includes: a projection motherboard, which is disposed inside the housing and electrically connected to the light-emitting component, and the housing is provided with an air inlet grille and an air outlet.

[0009] According to some embodiments of the present invention, the air inlet grille is located on the side of the housing, and the air outlet is located at the bottom of the housing.

[0010] According to some embodiments of the present invention, the projection motherboard has heat dissipation fins, the heat dissipation fins are disposed above the electrical components on the projection motherboard, the air inlet grille is opposite to the heat dissipation fins, and the air outlet is opposite to the heat dissipation fins in the height direction of the outer casing.

[0011] According to some embodiments of the present invention, the projection module further includes a cooling fan, which is disposed inside the housing and opposite to the heat dissipation fins.

[0012] According to some embodiments of the present invention, the light-emitting component includes: a light-emitting part and a correction sensor located on one side of the light-emitting part. The light-emitting part is used for projection, the correction sensor is electrically connected to the projection motherboard, the correction sensor is configured to acquire the projected image of the light-emitting part, and the projection motherboard corrects the light-emitting part based on the projected image.

[0013] According to some embodiments of this utility model, the detection direction of the correction sensor is parallel to the light emission direction of the light-emitting part.

[0014] Secondly, this utility model provides a projection speaker, including: a housing, a projection module as described in the above embodiment, a light-emitting hole is provided on the top plate of the housing, the projection module is disposed inside the housing, and the light-emitting component of the projection module is disposed at the light-emitting hole.

[0015] According to some embodiments of the present invention, the highest point of the light-emitting component is lower than the upper surface of the top plate of the housing, or the highest point of the light-emitting component is flush with the upper surface of the top plate of the housing.

[0016] According to some embodiments of the present invention, an air inlet is provided on the side plate of the housing, and the air inlet is directly opposite to or adjacent to the air inlet grille of the outer shell.

[0017] According to some embodiments of the present invention, the housing includes a first chamber, a second chamber, and a third chamber arranged sequentially in a second direction. The projection module is disposed in the second chamber. The first chamber and the third chamber are used to install speaker modules. The power supply harnesses and control harnesses of the two speaker modules are connected to the motherboard module. The motherboard module is disposed in the second chamber. The first direction is perpendicular to the second direction.

[0018] According to some embodiments of the present invention, a partition is provided in the second chamber, the partition dividing the second chamber into a first accommodating cavity and a second accommodating cavity arranged sequentially in the height direction, the main board module is disposed in the first accommodating cavity, and the projection module is disposed in the second accommodating cavity.

[0019] According to some embodiments of this utility model, the partition is provided with ventilation holes, which are opposite to the air outlet.

[0020] According to some embodiments of the present invention, the housing also has a housing air outlet located on the bottom surface, and the housing air outlet is connected to the first accommodating cavity.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a projection speaker from one angle according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the projection speaker according to another angle of an embodiment of the present utility model; Figure 3 This is a schematic diagram of a projection speaker according to an embodiment of the present utility model (the back panel of the housing is not shown). Figure 4 This is a schematic diagram of a projection module according to an embodiment of the present utility model; Figure 5 This is another schematic diagram of the projection module according to an embodiment of the present utility model; Figure 6 This is a bottom view schematic diagram of the projection module according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of one angle of the partition according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the partition from another angle according to an embodiment of the present utility model; Figure 9 This is a schematic diagram of the light emission angle of the projection speaker according to an embodiment of the present utility model.

[0023] Figure label: Projector speaker 100, Housing 10, light outlet 11, housing air inlet 12, partition 13, ventilation hole 131. Projection module 20, light-emitting assembly 21, light-emitting section 211, calibration sensor 212, housing 22, air inlet grille 221, air outlet 222, projection motherboard 23, heat sink 231, cooling fan 24. Speaker module 30, motherboard module 40 First chamber a, second chamber b, first receiving chamber b1, second receiving chamber b2, third chamber c. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order or hierarchy.

[0026] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "attachment," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] In the embodiments of this utility model, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this utility model shown in the drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0032] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0033] In this utility model, "multiple" refers to two or more (including two).

[0034] The following is for reference. Figures 1-9 The present invention describes a projection module 20 and a projection speaker 100 according to an embodiment of the present invention.

[0035] like Figure 1 and Figure 3 As shown, this utility model provides a projection speaker 100, including: a housing 10, a projection module 20 and a speaker module 30.

[0036] The housing 10 houses a speaker module 30 and a projection module 20. The speaker module 30 is a module that converts audio signals into sound output. The speaker module 30 contains a loudspeaker. For example, the housing 22 of the speaker module 30 integrates a power amplifier to amplify the audio signal before outputting the sound. It can also perform sound effects and sound quality processing. The projection module 20 is a module that can convert video signals into images or videos and project them onto a screen or wall using optical imaging principles. By integrating the speaker module 30 and the projection module 20 into the housing 10, the projection speaker 100 of this embodiment can simultaneously output audio and video. The video and audio can be output together to improve user engagement. At the same time, the integration of the projection module 20 and the speaker module 30 can improve space utilization, reduce layout difficulty, eliminate the need for external communication cables, and improve the overall aesthetics.

[0037] Of course, the projection speaker 100 of this utility model embodiment can also be used as a projection device for projection, or as a speaker for audio output.

[0038] like Figure 4 , Figure 5 and Figure 6 As shown, the projection module 20 according to an embodiment of the present invention includes: a housing 22 and a light-emitting component 21. The light-emitting component 21 is disposed inside the housing 22 and emits light from the top surface of the housing 22. The housing 22 has a front surface and a rear surface arranged parallel to each other along a first direction. The angle between the emitted light from the light-emitting component 21 and the horizontal plane is greater than 0° and less than 90° (see [reference]). Figure 9 As shown), the emitted light beam points towards the rear side of the outer casing 22.

[0039] Among them, such as Figure 9 As shown, the light-emitting component 21 projects onto the rear side of the housing 22. The minimum light-emitting angle of the light-emitting component 21 is A, and the maximum light-emitting angle of the light-emitting component 21 is B. The minimum light-emitting angle A and the maximum light-emitting angle B form a projected image, which respectively defines the top and bottom edges of the projected image. The angle between the emitted light and the horizontal plane that is greater than 0° and less than 90° as defined in this application means that both the maximum light-emitting angle B and the minimum light-emitting angle A are greater than 0° and less than 90°.

[0040] It should be noted that in the existing technology, the projection module 20 is a front projection. When a user is viewing the projected content, if the user is located between the screen and the projection speaker 100, the user may easily block the projection module 20, resulting in a decreased viewing experience. If the user is located behind the projection speaker 100, the user needs to turn around or move to the side of the panel of the projection speaker 100 to operate the control buttons of the projection speaker 100, which is difficult to control. In addition, during the control process, the user may easily block the projected content, which not only affects the viewing experience but also makes it impossible to accurately know the adjustment status, increasing the difficulty of control.

[0041] It is understood that this invention projects the projection module 20 to the rear, and the projected image is located above the projection module 20. During use, the front surface of the housing 22 can face the user, and the rear surface of the housing 22 is close to the wall or screen where the projection is being made. When the user controls the projection module 20 using the control buttons (e.g., increasing or decreasing volume, switching projection content, etc.), the projection content will not be obstructed. This not only makes it easier to see the projection content and reduces the difficulty of control, but also improves the viewing experience and thus enhances the user experience.

[0042] It should be noted that in this embodiment of the present invention, the outer shell 22 is in the shape of a quadrangular prism. The outer shell 22 has a first direction, a second direction, and a third direction. The first direction and the second direction are both horizontal. The first direction, the second direction, and the third direction are perpendicular to each other. The direction in which the width of the outer shell 22 is located (i.e., the width direction of the outer shell 22) is the first direction. The direction in which the long side of the outer shell 22 is located is the second direction. The direction in which the high side of the outer shell 22 is located is the third direction. The arrangement direction of the outer shell 22 is consistent with the arrangement direction of the shell 10. The first direction can correspond to the front-back direction in the space where the projection speaker 100 is arranged. The second direction corresponds to the left-right direction in the space where the projection speaker 100 is arranged. The third direction can be the up-down direction in the space where the projection speaker 100 is arranged (the relative direction of the top and bottom surfaces of the outer shell 22).

[0043] According to the embodiment of the present invention, the projection module 20 can achieve rearward projection by making the angle between the emitted light of the light-emitting component 21 and the horizontal plane greater than 0° and less than 90° (i.e., the light emission angle) and the emitted light pointing towards the rear surface of the housing 22. This reduces the probability of the user obstructing the projected image. When controlling the projection module 20, the user will not obstruct the projected image, making it easier to know the projected content. Controlling the projection module 20 based on the projected content can reduce the difficulty of control and improve the user experience.

[0044] like Figure 4 and Figure 5 As shown, the light-emitting component 21 is disposed adjacent to the front surface of the housing 22.

[0045] In this way, the light-emitting component 21 can make fuller use of the dimensions of the housing 22 in the front-to-back direction, making the distance between the light-emitting component 21 and the screen shorter, thus achieving the expected projection height and projection width.

[0046] It is understandable that the projection distance between the projection module 20 and the screen is the distance between the light-emitting component 21 and the screen. If the light-emitting component 21 is located near the rear surface of the housing 22, it will be difficult to fully utilize the size of the housing 22 in the first direction.

[0047] Combination Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the projection module 20 further includes: a projection motherboard 23, which is disposed inside the housing 22 and electrically connected to the light-emitting component 21. The housing 22 is provided with an air inlet grille 221 and an air outlet 222.

[0048] The electrical connection between the projection motherboard 23 and the light-emitting component 21 means that the projection motherboard 23 can supply power to the light-emitting component 21, receive video signals, and control the light-emitting component 21 to project based on the video signals. During operation, both the projection motherboard 23 (signal processing) and the light-emitting component 21 (light emission process) generate a lot of heat. The light-emitting component 21 and the projection motherboard 23 are set in a relatively cramped housing 22. Although this can meet the requirements of compact and miniaturized settings, heat accumulation is possible, which can easily lead to overheating protection and even affect the service life.

[0049] Furthermore, this utility model provides an air inlet grille 221 and an air outlet 222 on the outer casing 22, so that airflow can enter through the air inlet grille 221 and exit through the air outlet 222, thereby achieving heat dissipation for the light output component 21 and the projection motherboard 23 through airflow, improving heat accumulation, reducing the operating temperature of the projection module 20, thereby improving the working stability and reliability of the projection module 20, and extending the service life of the projection module 20.

[0050] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the air inlet grille 221 is located on the side of the outer casing 22, and the air outlet is located on the bottom surface of the outer casing 22.

[0051] In this way, the air inlet grille 221 and the air outlet 222 can be located on adjacent surfaces of the housing 22, allowing the airflow to stay in the housing 22 for a longer time to achieve sufficient heat exchange. At the same time, the air outlet 222 is located on the bottom surface of the housing 22, while the light-emitting component 21 emits light from the top, which can also prevent hot airflow from directly acting on the light-emitting component 21.

[0052] In addition, the sides of the outer casing 22 are used to set air intake grilles 221. The number of air intake grilles 221 can be increased, the air intake area of ​​the air intake grilles 221 can be larger, and more airflow can be used for heat dissipation, which can also improve the heat dissipation effect and heat dissipation efficiency.

[0053] like Figure 5 As shown, according to some embodiments of the present invention, the projection motherboard 23 has heat dissipation fins 231, which are disposed above the electrical components on the projection motherboard 23. The air inlet grille 221 is opposite to the heat dissipation fins 231, and the air outlet 222 is opposite to the projection of the heat dissipation fins 231 in the height direction (third direction) of the outer casing 22.

[0054] Some electrical components on the projection motherboard 23 generate a significant amount of heat, such as the control unit and processor located on the projection motherboard 23. By attaching the heat sink 231 to these heat-generating components, the heat dissipation of the heat-generating electrical components on the projection motherboard 23 can be enhanced. Furthermore, by positioning the air inlet grille 221 opposite to the heat sink 231, the relatively cooler incoming airflow can directly act on the heat sink 231, further improving the heat dissipation effect on the heat-generating components. By positioning the air outlet 222 opposite to the heat sink 231 in the height direction of the outer casing 22, the outflow resistance of the airflow can be reduced, allowing for a faster airflow velocity and achieving a better heat dissipation effect.

[0055] like Figure 5 As shown, according to some embodiments of the present invention, the projection module 20 further includes a cooling fan 24, which is disposed inside the housing 22 and is opposite to the heat dissipation fins 231.

[0056] Specifically, a cooling fan 24 is installed inside the outer casing 22 to turbulent the airflow, thereby achieving forced air cooling of the projection motherboard 23 and the light-emitting component 21. At the same time, by positioning the cooling fan 24 opposite the heat sink 231, targeted and enhanced heat dissipation can be achieved for electrical components that generate a lot of heat, further improving the heat dissipation effect.

[0057] like Figure 5 As shown, according to some embodiments of the present invention, the light-emitting component 21 includes: a light-emitting part 211 and a correction sensor 212 located on one side of the light-emitting part 211. The light-emitting part 211 is used for projection, and the correction sensor 212 is electrically connected to the projection motherboard 23. The correction sensor 212 is configured to collect the projected image of the light-emitting part 211, and the projection motherboard 23 corrects the light-emitting part 211 based on the projected image.

[0058] Specifically, the light-emitting section 211 can be formed into a trapezoidal light-emitting structure as shown in the figure, so that the correction sensor 212 is set on the side of the light-emitting section 211 and can acquire the projected image. The projection motherboard 23 corrects the light-emitting angle of the light-emitting section 211 based on the projected image, which can improve the projection effect and improve the user experience.

[0059] Furthermore, the detection direction of the calibration sensor 212 is parallel to the light emission direction of the light emitting section 211, which can make the projected image obtained by the calibration sensor 212 closer to the real projected image of the light emitting section 211, thereby improving the calibration accuracy.

[0060] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model further proposes a projection speaker 100, which includes a housing 10, a projection module 20, and a projection speaker 30.

[0061] The top plate of the housing 10 has a light-emitting hole 11, the projection module 20 is disposed inside the housing 10, and the light-emitting component 21 of the projection module 20 is disposed at the light-emitting hole 11.

[0062] Combination Figure 1 , Figure 3 and Figure 5 As shown, the light-emitting hole 11 is a rectangular hole, and the light-emitting component 21 is set in the area of ​​the light-emitting hole 11 located on the top plate of the housing 10, so that the light-emitting component 21 can emit light out through the top of the housing 10. A more reasonable light-emitting position selection can reduce the obstruction of the emitted light and improve the light-emitting effect, thereby improving the projection effect.

[0063] Furthermore, the light-emitting component 21 can project onto the rear of the housing 10, such as a screen or wall located behind the housing 10.

[0064] It should be noted that in the existing technology, the projection module 20 projects in the front and the speaker module 30 emits sound in the front. When a user is watching the projected content, if they are located between the screen and the projector speaker 100, the sound is behind the user, resulting in a poor listening experience. Moreover, the user is likely to block the projection module 20, leading to a decline in the viewing experience. If the user is located behind the projector speaker 100, the sound is also reflected by the wall where the screen is located, resulting in a poor listening experience. At the same time, if the user operates the control buttons of the projector speaker 100, they need to turn around or move to one side of the panel of the projector speaker 100, which makes the control difficult. During the control process, the user is likely to block the projected content, which not only affects the viewing experience but also makes it impossible to accurately know the adjustment status, increasing the difficulty of control.

[0065] It is understood that this utility model projects onto the side of the back panel of the housing 10, while the side of the housing 10 with the front panel is used for sound output. During use, the front panel can face the user so that the speaker module 30 can output sound to the user. At the same time, control buttons can be set on the front panel. When the user controls the projector speaker 100 through the control buttons (such as increasing or decreasing the volume, switching the projection content, etc.), the projection content will not be obstructed. This not only makes it easier to see the projection content and reduces the difficulty of control, but also improves the viewing experience and thus the user experience.

[0066] According to the embodiment of the present utility model, the projection speaker 100 can emit sound in the front and project backward by making the projection module 20 project backward. On the one hand, the projection speaker 100 can output sound in front of the user, and the probability of the user blocking the projection is lower, which can give the user a better audio-visual experience and improve the user experience. On the other hand, the user has less difficulty in controlling the projection speaker 100, which can improve the convenience of use.

[0067] It should be noted that the light-emitting part 211 is inclinedly set on the top plate of the housing 10 and has a trapezoidal light-emitting structure. The length of the base side of the trapezoid is greater than the length of the top side, so that the horizontal distance between the light-emitting part 211 and the screen or wall is 30cm-50cm, and the vertical distance between the light-emitting part 211 and the required projection height is 150cm-180cm. The projection angle of the light-emitting part 211 is greater than 0° and less than 90°. Under the premise of achieving better projection effect, the distance between the projection speaker 100 and the wall where the screen is located can be closer. The closer distance can make full use of space, making the projection speaker 100 of this utility model applicable to more scenarios and effectively improving the product competitiveness.

[0068] It should be noted that the highest point of the light-emitting component 21 is lower than the upper surface of the top plate of the housing 10, or the highest point of the light-emitting component 21 is flush with the upper surface of the top plate of the housing 10. That is, the highest point of the light-emitting component 21 is located below or flush with the upper surface of the top plate of the housing 10, so as to avoid the light-emitting component 21 protruding from the housing 10. On the one hand, it can improve the flatness of the upper surface of the top plate of the housing 10, thereby improving aesthetics. On the other hand, it can reduce the probability of the light-emitting component 21 being scratched, extend the service life of the projection speaker 100, and effectively protect the light-emitting component 21 to ensure projection effect, thereby improving the user experience.

[0069] like Figure 3 As shown, according to some embodiments of the present invention, the housing 10 includes a first chamber a, a second chamber b, and a third chamber c arranged sequentially in a second direction (the length direction of the housing 10). The projection module 20 is disposed in the second chamber b. The first chamber a and the third chamber c are used to install the speaker module 30. The first direction is perpendicular to the second direction.

[0070] Specifically, the second chamber b is the middle chamber. The projection module 20 is placed in the second chamber b to achieve centered projection. The speaker modules 30 in the first chamber a and the third chamber c can output sound on the left and right sides of the projection module 20, thus forming the left channel and the right channel respectively, thereby outputting stereo sound.

[0071] According to some embodiments of the present invention, the power supply harnesses and control harnesses of the two speaker modules 30 are connected to the mainboard module 40. The mainboard module 40 is disposed in the second chamber b. A partition 13 is disposed in the second chamber b, and the partition 13 divides the second chamber b into a first accommodating cavity b1 and a second accommodating cavity b2 arranged sequentially in the height direction. The mainboard module 40 is disposed in the first accommodating cavity b1, and the projection module 20 is disposed in the second accommodating cavity b2.

[0072] It should be noted that the motherboard module 40 refers to an integrated circuit board that integrates at least audio signal conversion, video signal conversion, audio signal input, video signal input, power supply unit, interface, control buttons, etc. The main control module is electrically connected to the speaker module 30 and the projection module 20, and is suitable for powering and controlling the speaker module 30 and the projection module 20. The power supply harnesses and control harnesses of the two speaker modules 30 are connected to the motherboard module 40, and the motherboard module 40 is arranged in the second chamber b, which makes it easier to lead out the power supply harnesses and control harnesses of the two speaker modules 30, the lead-out length is shorter, the cost is lower, and the sound synchronization of the two speaker modules 30 can be improved.

[0073] Meanwhile, the partition 13 allows for the integration of the motherboard module 40 and the projection module 20, improving the space occupied by the projection speaker 100. It also allows the projection module 20 to be placed in the upper second accommodating cavity b2, making projection easier. The spaced motherboard module 40 and projection module 20 can reduce interference between them, thus improving the projection effect.

[0074] like Figure 2 As shown, according to some embodiments of the present invention, the side plate of the housing 10 is provided with a housing air inlet 12, which is directly opposite to or adjacent to the air inlet grille 221 of the outer shell 22. The partition 13 is provided with a ventilation hole 131, which is opposite to the air outlet 222. The housing 10 also has a housing air outlet located on the bottom surface, which is connected to the first accommodating cavity b1.

[0075] Therefore, airflow can be introduced through the housing air inlet 12, and the introduced airflow can directly enter the housing 22. After heat dissipation, the airflow can be discharged from the housing 22 through the air outlet 222 and the ventilation hole 131, and enter the first accommodating cavity b1, and further discharged from the housing 10 through the housing air outlet, so as to further improve the heat dissipation effect of the projection module 20.

[0076] Other configurations and operations of the projection speaker 100 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A projection module, characterized in that, include: Outer shell (22); A light-emitting component (21) is disposed inside the housing (22) and emits light from the top surface of the housing (22). The housing (22) has a front surface and a rear surface arranged in a first direction and parallel to each other. The angle between the emitted light from the light-emitting component (21) and the horizontal plane is greater than 0° and less than 90°, and the emitted light points to the rear side of the housing (22).

2. The projection module according to claim 1, characterized in that, The light-emitting component (21) is disposed adjacent to the front surface of the housing (22).

3. The projection module according to claim 1, characterized in that, The projection module (20) further includes a projection motherboard (23), which is disposed inside the housing (22) and electrically connected to the light-emitting component (21). The housing (22) is provided with an air inlet grille (221) and an air outlet (222).

4. The projection module according to claim 3, characterized in that, The air inlet grille (221) is located on the side of the housing (22), and the air outlet (222) is located on the bottom surface of the housing (22).

5. The projection module according to claim 4, characterized in that, The projection motherboard (23) has heat dissipation fins (231), which are disposed above the electrical components on the projection motherboard (23). The air inlet grille (221) is opposite to the heat dissipation fins (231), and the air outlet (222) is opposite to the heat dissipation fins (231) in the height direction of the outer shell (22).

6. The projection module according to claim 5, characterized in that, The projection module (20) also includes a cooling fan (24), which is disposed inside the housing (22) and opposite to the heat dissipation fins (231).

7. The projection module according to claim 3, characterized in that, The light-emitting component (21) includes a light-emitting part (211) and a calibration sensor (212) located on one side of the light-emitting part (211). The light-emitting part (211) is used for projection. The calibration sensor (212) is electrically connected to the projection motherboard (23). The calibration sensor (212) is configured to acquire the projected image of the light-emitting part (211). The projection motherboard (23) calibrates the light-emitting part (211) based on the projected image.

8. The projection module according to claim 7, characterized in that, The detection direction of the correction sensor (212) is parallel to the light emission direction of the light-emitting part (211).

9. A projection speaker, characterized in that, include: The housing (10) has a light-emitting hole (11) on its top plate. The projection module (20) according to any one of claims 1-8 is disposed in the housing (10), and the light-emitting component (21) of the projection module (20) is disposed at the light-emitting hole (11).

10. The projection speaker according to claim 9, characterized in that, The highest point of the light-emitting component (21) is lower than the upper surface of the top plate of the housing (10), or the highest point of the light-emitting component (21) is flush with the upper surface of the top plate of the housing (10).

11. The projection speaker according to claim 9, characterized in that, The side plate of the housing (10) is provided with a housing air inlet (12), which is directly opposite to or adjacent to the air inlet grille (221) of the outer shell (22).

12. The projection speaker according to claim 11, characterized in that, The housing (10) includes a first chamber (a), a second chamber (b), and a third chamber (c) arranged sequentially in a second direction. The projection module (20) is disposed in the second chamber (b). The first chamber (a) and the third chamber (c) are used to install speaker modules (30). The power supply harnesses and control harnesses of the two speaker modules (30) are connected to the motherboard module (40). The motherboard module (40) is disposed in the second chamber (b). The first direction is perpendicular to the second direction.

13. The projection speaker according to claim 12, characterized in that, The second chamber (b) is provided with a partition (13), which divides the second chamber (b) into a first accommodating cavity (b1) and a second accommodating cavity (b2) arranged sequentially in the height direction. The main board module (40) is disposed in the first accommodating cavity (b1), and the projection module (20) is disposed in the second accommodating cavity (b2).

14. The projection speaker according to claim 13, characterized in that, The partition (13) is provided with ventilation holes (131), which are opposite to the air outlet (222) of the outer shell (22).

15. The projection speaker according to claim 13, characterized in that, The housing (10) also has a housing air outlet located on the bottom surface, which is connected to the first accommodating cavity (b1).

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