Folding projector

Abstract

The invention belongs to the technical field of projection appliances, and discloses a folding projector. The folding projector comprises a projection module and an auxiliary module, and the projection module and the auxiliary module form a folding structure, so that the folding projector can be unfolded for use or folded for storage. Through the arrangement, after the foldable projector is folded, the projection module and the auxiliary module can be connected in an attached mode to form a compact structure, the occupied space of the foldable projector is smaller, and therefore a user can conveniently store and carry the foldable projector. Besides, when the foldable projector is unfolded for use, the projection module can rotate in the direction relatively far away from the auxiliary module, so that the auxiliary module can avoid a heat dissipation path of the projection module, the projection module has enough space for heat dissipation, the heat dissipation cost is reduced, and the user experience is improved. And the use stability and the service life of the whole folding projector can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of projection tools, and in particular to a foldable projector. Background Art

[0002] A projector is a device that can project videos, images or text onto a screen for display. It is now widely used in homes, conference rooms, schools or cinemas, but traditional projectors are large and heavy, making them inconvenient to move and carry around. With the development of technology, people have higher requirements for the size and portability of projectors. Since existing projectors have complex structures and require many parts, how to reduce the size while improving ease of use has become a difficult problem that needs to be solved today.

[0003] In response to the above problems, the existing related technologies provide a variety of projectors that can reduce the volume and facilitate carrying. For example, the prior art with application number 201721019860.5 provides a foldable device and a projection device using the foldable device. By connecting the base and the housing provided with the projector to the folding mechanism, the device can reduce the volume when the folding mechanism is deformed, thereby facilitating carrying. However, the common problem of the projection device and the existing improved projectors is that the heat dissipation performance is poor. After long-term use, the internal temperature of the projector is too high, resulting in reduced stability and service life.

[0004] Based on this, it is necessary to design a foldable projector to solve the problems existing in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a foldable projector which is convenient to carry, store and use and can optimize heat dissipation performance, thereby improving use stability and service life.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A foldable projector comprises a projection module and an auxiliary module which are conductively connected, wherein the projection module is pivotally connected to the auxiliary module so that the projection module and the auxiliary module can form a foldable structure.

[0008] Preferably, the auxiliary module includes a power supply module, a speaker module and a first folding member, the speaker module and the power supply module are both integrated and installed on the first folding member, and are both conductively connected to the projection module, and the first folding member is pivotally connected to the projection module.

[0009] Preferably, the auxiliary module includes a power supply module, a speaker module, a first folding piece and a second folding piece, the speaker module and the power supply module are both conductively connected to the projection module, the two ends of the second folding piece are respectively pivotally connected to the projection module and the first folding piece, the power supply module is installed on the first folding piece, and the speaker module is installed on the second folding piece.

[0010] Preferably, the first folding member includes a first folding shell and a first pivot connection mechanism, the power supply module is disposed in the first folding shell and is rotatably connected to the second folding member via the first pivot connection mechanism.

[0011] Preferably, the first pivot connection mechanism comprises a first rotation shaft cover and a first rotation shaft, the first rotation shaft cover is connected to the projection module, and is rotationally connected to the second folding member via the first rotation shaft.

[0012] Preferably, the second folding member includes a second folding shell and a second pivot connection mechanism, the speaker module is arranged in the second folding shell, and the second folding shell is rotatably connected to the projection module via the second pivot connection mechanism.

[0013] Preferably, the second pivot connection mechanism includes a second rotation shaft cover and a second rotation shaft, the second rotation shaft cover is connected to the second folding member, and is rotationally connected to the first folding member via the second rotation shaft.

[0014] Preferably, a first threading hole is provided on the projection module, a second threading hole is provided on the second shaft cover, a third threading hole is provided on the second folding piece, and the transmission wiring harness in the second folding piece passes through the third threading hole, the second threading hole and the first threading hole, and is connected to the mainboard in the projection module.

[0015] Preferably, a fourth threading hole is provided on the second folding shell, a fifth threading hole is provided on the first rotating shaft cover, and a sixth threading hole is provided on the first folding shell. The conductive wire bundle in the first folding part is passed through the sixth threading hole, the fifth threading hole, the fourth threading hole, the third threading hole, the second threading hole and the first threading hole, and is conductively connected to the mainboard in the projection module.

[0016] Preferably, the power supply module is a battery pack.

[0017] The foldable projector provided by the present invention has the following beneficial effects: when the foldable projector is folded, the projection module and the auxiliary module can be connected to form a compact structure, occupying a small volume, so that the user can store and carry it conveniently. When the foldable projector is unfolded for use, the projection module can rotate in a direction relatively away from the auxiliary module, so that the auxiliary module can avoid the heat dissipation route of the projection module, so that the projection module has enough space for heat dissipation, reducing the cost of heat dissipation, and helping to improve the use stability and life of the entire foldable projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the foldable projector provided in the first embodiment of the present invention when unfolded;

[0019] Figure 2 is a schematic structural diagram of the foldable projector provided by the first embodiment of the present invention when folded;

[0020] Figure 3 is a top view of the first rotating shaft cover provided in the first embodiment of the present invention;

[0021] Figure 4 is along Figure 3 Schematic diagram of the cross section at AA in the middle;

[0022] Figure 5 is a schematic structural diagram of the second folding housing provided by the first embodiment of the present invention at a first viewing angle;

[0023] Figure 6 is a schematic diagram of the structure of a projection module provided in Embodiment 1 of the present invention;

[0024] Figure 7 is a top view of the second rotating shaft cover provided in the first embodiment of the present invention;

[0025] Figure 8 is along Figure 7 Schematic diagram of the cross section at BB;

[0026] Fig. 9 is a schematic structural diagram of the second folding housing provided by the first embodiment of the present invention at a second viewing angle;

[0027] Fig.10 is a structural schematic diagram of a first foldable shell provided in Embodiment 1 of the present invention;

[0028] Fig.11 It is a schematic diagram of the structure of the foldable projector provided by the second embodiment of the present invention when folded.

[0029] In the figure:

[0030] 1. Projection module; 11. First threading hole; 2. Auxiliary module;

[0031] 21. a first folding member; 22. a second folding member;

[0032] 211, first folding housing; 2111, sixth threading hole; 212, first pivot connection mechanism; 2121, first shaft cover; 21211, first adapter hole; 21212, fifth threading hole;

[0033] 221, second folding shell; 2211, first mounting groove; 2212, second adapter hole; 2213, second mounting groove; 2214, fourth adapter hole; 2215, third threading hole; 2216, fourth threading hole; 222, second pivot connection mechanism; 2221, second shaft cover; 22211, third adapter hole; 22212, second threading hole; 222, third threading hole; 223, second mounting groove; 2231, fourth adapter hole. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] The technical solution provided by the present invention is introduced below in conjunction with the accompanying drawings and two specific implementations.

[0039] Embodiment 1

[0040] Combination Figures 1 to 10 As shown, an embodiment of the present invention provides a foldable projector, including a conductively connected projection module 1 and an auxiliary module 2, wherein the projection module 1 and the auxiliary module 2 are pivotally connected so that the two can form a foldable structure. When the foldable projector is in a folded state, the projection module 1 and the auxiliary module 2 can be connected in a close fit to form a compact structure, and the compact structure formed occupies a smaller volume, thereby facilitating storage and carrying by users.

[0041] Among them, in this embodiment, the projection module 1 mainly includes a driving board, a control main board, a display panel, a light source, a lens and a radiator. The driving board, the display panel, the light source, the radiator and the driving board are all connected to the control main board, wherein the driving board can distribute the transmitted power to the display panel, the light source and the radiator through the control main board, and the control main board can control the display panel to generate an image and control the light source to turn on, so as to generate sufficiently strong light through the light source to illuminate the image and project it onto the screen, and at the same time can control the radiator to turn on, so as to dissipate the heat at the heating position (mainly concentrated on the light source) to avoid overheating of the heating position and affect the working performance of the foldable projector.

[0042] It should be noted that the radiator may be a cooling fan, a heat sink or other heat dissipation structure, as long as the radiator structure is compact and meets the heat dissipation requirements, and this embodiment is not limited to this.

[0043] refer to Figure 1 , Figure 2As shown, the auxiliary module 2 specifically includes a power supply module, a speaker module, a first folding member 21 and a second folding member 22. In this embodiment, the power supply module is preferably a battery pack. The battery pack has a high energy density, so the volume and weight of the power supply module can be reduced accordingly to meet the portable use requirements of the foldable projector. Moreover, the battery pack can provide a long period of power, so that the durability of the foldable projector is longer, thereby bringing a better user experience. In addition, since the power supply module is easy to charge and charges quickly, it can also ensure that the foldable projector can quickly restore its working ability after the power is exhausted, thereby further improving the user experience.

[0044] In one implementation of the present embodiment, the power supply module is conductively connected to the driving board in the projection module 1, and the speaker module is conductively connected to the main board in the projection module 1, so that the main board controls the opening and closing of the speaker module. The two ends of the second folding member 22 are respectively pivotally connected to the projection module 1 and the first folding member 21, and the power supply module is installed on the first folding member 21, and the speaker module is installed on the second folding member 22.

[0045] Through the above-mentioned arrangement, the projection module 1, the power supply module and the speaker module can be independently divided into three parts, thereby making the foldable projector a three-folding style projector. In this way, when the foldable projector is unfolded, the projection module 1, the power supply module and the speaker module can be dispersed from each other instead of being gathered in the same shell space, thereby reducing the interference and influence between each other during operation. Moreover, when the foldable projector is unfolded, the projection module 1 can be rotated in a direction relatively away from the power supply module and the speaker module, so that the power supply module and the speaker module can avoid the heat dissipation route of the projection module 1, so that the projection module 1 has enough space for heat dissipation, thereby reducing the cost of heat dissipation, and thus helping to improve the use stability and life of the entire foldable projector.

[0046] Specifically, the first folding member 21 provided in this embodiment includes a first folding housing 211 and a first pivoting connection mechanism 212. The first folding housing 211 has a cavity for accommodating the power supply module to protect the power supply module, and the first folding housing 211 can be rotatably connected to the second folding member 22 through the first pivoting connection mechanism 212, so that the first folding member 21 can be rotated in a direction relatively close to or away from the second folding member 22. Through the above arrangement, when the first folding member 21 is supported and set on a horizontal ground, and the second folding member 22 rotates relative to the first folding member 21, the second folding member 22 can drive the projection module 1 to rise or fall in the vertical direction, so that the projection module 1 can be adjusted to the most suitable height for use.

[0047] More specifically, combined with Figures 3 to 5As shown, the first pivot connection mechanism 212 includes a first rotating shaft cover 2121 and a first rotating shaft. One embodiment of the present embodiment is that the first rotating shaft cover 2121 is a long block structure, one end of the first rotating shaft cover 2121 can be fixedly connected to the second folding member 22 through a locking member, and first adapter holes 21211 are opened inwardly along the length direction of the first rotating shaft cover 2121 on both sides of the first rotating shaft cover 2121; one end of the second folding member 22 has a first mounting groove 2211, and each side wall of the first mounting groove 2211 is provided with a second adapter hole 2212, the first rotating shaft cover 2121 is inserted into the first mounting groove 2211, and the second adapter holes 2212 are arranged one by one in the first adapter holes 21211; in addition, two first rotating shafts are provided, and each second adapter hole 2212 is rotatably connected to the first adapter hole 21211 through the first rotating shaft.

[0048] Through the above arrangement, the structure of the first pivot connection mechanism 212 is effectively simplified, the assembly difficulty is reduced, and at the same time, the first folding member 21 can be stably connected to the second folding member 22. In addition, the arrangement of the first rotating shaft cover 2121 can optimize the spatial layout of the first folding member 21 and the second folding member 22, so that the first folding member 21 and the second folding member 22 can fit more compactly after folding, and avoid the end of the second folding member 22 interfering with the folding of the first folding member 21 and causing it to be unable to be completely stored.

[0049] Specifically, the second folding member 22 provided in this embodiment includes a second folding shell 221 and a second pivot connection mechanism 222. The second folding shell 221 has a cavity for accommodating the speaker module to protect the speaker module. One end of the second folding shell 221 is provided with the above-mentioned first mounting groove 2211, so that the second folding shell 221 can be rotatably connected to the first folding shell 211 through the first pivot connection mechanism 212, and the other end of the second folding shell 221 can be rotatably connected to the projection module 1 through the second pivot connection mechanism 222, so that the projection module 1 can rotate relative to the second folding member 22.

[0050] Through the above arrangement, when the first folding member 21 is supported and set on a horizontal ground, and the second folding member 22 is rotated to a certain angle relative to the first folding member 21, the projection module 1 can continue to rotate relative to the second folding member 22, so that the projection module 1 can be extended to a higher projection height. Moreover, since the second folding member 22 can rotate a certain angle relative to the first folding member 21, the projection module 1 can rotate a certain angle relative to the second folding member 22, thereby further increasing the projection angle of the projection module 1, so that it can achieve projection within a range of 360°.

[0051] More specifically, combined with Figures 7 to 9As shown, the second pivot connection mechanism 222 includes a second rotating shaft cover 2221 and a second rotating shaft. One embodiment of the present embodiment is that the second rotating shaft cover 2221 has the same structure as the first rotating shaft cover 2121, so as to facilitate mass production and reduce costs. One end of the second rotating shaft cover 2221 can be fixedly connected to the projection module 1 through a locking member, and the two sides of the second rotating shaft cover 2221 are provided with third transfer holes 22211 inwardly along the length direction of the second rotating shaft cover 2221; the other end of the second folding shell 221 is provided with a second mounting groove 2213, and the two side walls of the second mounting groove 2213 are respectively provided with a fourth transfer hole 2214, the second rotating shaft cover 2221 is inserted into the second mounting groove 2213, and the third transfer hole 22211 is provided in a one-to-one correspondence with the fourth transfer hole 2214; in addition, two second rotating shafts are provided, and each fourth transfer hole 2214 is rotatably connected to the third transfer hole 22211 through the second rotating shaft.

[0052] Through the above arrangement, the structure of the second pivot connection mechanism 222 is also simpler, ensuring that the projection module 1 and the second folding member 22 are stably rotated and connected, while also ensuring that the two can be fully fitted and connected, further facilitating the storage and carrying of the foldable projector.

[0053] Furthermore, in this embodiment, the housing of the projection module 1, the first folding member 21, and the second folding member 22 are all flat square shell structures, so that after the three are folded, the overall structure is more compact, which can further reduce the volume occupancy rate of the foldable projector in space, so that it can be applied to application scenarios with limited space, and is more convenient to carry and move, making it more applicable. In addition, the flat design will also effectively increase the heat dissipation area of ​​the projection module 1, so as to achieve a better heat dissipation effect with the help of the radiator.

[0054] In this embodiment, reference Figure 5 , Figure 6 and Figure 8 As shown, the projection module 1 is provided with a first threading hole 11, the second rotating shaft cover 2221 is also provided with a second threading hole 22212, and the second folding shell 221 is provided with a third threading hole 2215. The transmission wire harness on the speaker module located in the second folding member 22 passes through the third threading hole 2215, the second threading hole 22212 and the first threading hole 11 in sequence, and is connected to the main board in the projection module 1. This layout can make the transmission wire harness on the speaker module more convenient to manage and avoid complicated wiring operations. In addition, regardless of whether the foldable projector is in an extended state or a compressed state, the first rotating shaft cover 2121 can protect the above-mentioned transmission wire harness and prevent the transmission wire harness from being exposed to the external environment, thereby preventing it from being damaged by external factors.

[0055] More specifically, in this embodiment, referring to Figure 4, Fig. 9 and Fig.10 As shown, the second folding shell 221 is provided with a fourth threading hole 2216, the first rotating shaft cover 2121 is provided with a fifth threading hole 21212, and the first folding shell 211 is provided with a sixth threading hole 2111. The conductive wire harness on the battery pack located in the first folding shell 211 passes through the sixth threading hole 2111, the fifth threading hole 21212, the fourth threading hole 2216, the third threading hole 2215, the second threading hole 22212 and the first threading hole 11 in sequence, and is connected to the mainboard in the projection module 1, so that the power supply module can supply power to the projection module 1 and the speaker module. Through the above arrangement, the layout of the conductive wire harness on the battery pack is more reasonable and safe. The above six threading holes are used to constrain and protect the conductive wire harness, which can ensure that the conductive wire harness is not easy to loosen or fall off, and at the same time, it can avoid the risk of the conductive wire harness being scratched and worn by the external environment.

[0056] Embodiment 2

[0057] refer to Fig.11 As shown, this embodiment provides a foldable projector. Different from the first embodiment, in this embodiment, the foldable projector only includes a first foldable member 21, which is directly rotatably connected to the projection module 1, and the speaker module and the power supply module are both integrated and installed on the first foldable member 21, so that the projection module 1, the power supply module and the speaker module are independently divided into two parts, thereby forming a double-folding style projector. Through the above arrangement, when the foldable projector is unfolded, the projection module 1 can also be separated from the power supply module, so as to achieve the technical effect of improving the heat dissipation performance of the projection module 1, and can also further reduce the space occupied by the foldable projector when unfolded or folded, so as to be more convenient to use and carry, and have a wider range of applications.

[0058] Therefore, those skilled in the art can choose whether to integrate the speaker module and the power supply module together in the first folding part 21 or to arrange them separately in the first folding part 21 and the second folding part 22 according to actual working conditions. The present invention does not make specific limitations on this.

[0059] It should be noted that, for a projector that includes other types of modules in addition to the projection module 1, the speaker module and the power supply module, the foldable projector can also be designed as a projector with more folding layers by independently arranging different modules on different folding parts as in the first embodiment. When unfolded for use, multiple modules can be separated and not integrated with the projection module 1, thereby improving the heat dissipation performance and efficiency of the projection module 1; after folding, multiple modules can be folded and attached together, thereby meeting the requirements of convenient storage and carrying.

[0060] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A foldable projector, characterized in that: The invention comprises a projection module (1) and an auxiliary module (2) which are electrically connected, wherein the projection module (1) is pivotally connected to the auxiliary module (2) so that the projection module (1) and the auxiliary module (2) can form a folding structure.

2. The foldable projector according to claim 1, characterized in that: The auxiliary module (2) comprises a power supply module, a sound box module and a first folding member (21); the sound box module and the power supply module are both integrally mounted on the first folding member (21) and are both conductively connected to the projection module (1); the first folding member (21) is pivotally connected to the projection module (1).

3. The foldable projector according to claim 1, characterized in that: The auxiliary module (2) comprises a power supply module, a sound box module, a first folding member (21) and a second folding member (22); the sound box module and the power supply module are both conductively connected to the projection module (1); two ends of the second folding member (22) are respectively pivotally connected to the projection module (1) and the first folding member (21); the power supply module is mounted on the first folding member (21); and the sound box module is mounted on the second folding member (22).

4. The foldable projector according to claim 3, characterized in that: The first folding member (21) comprises a first folding shell (211) and a first pivoting connection mechanism (212); the power supply module is arranged in the first folding shell (211) and is rotatably connected to the second folding member (22) via the first pivoting connection mechanism (212).

5. The foldable projector according to claim 4, characterized in that: The first pivot connection mechanism (212) comprises a first rotation shaft cover (2121) and a first rotation shaft. The first rotation shaft cover (2121) is connected to the projection module (1) and is rotationally connected to the second folding member (22) via the first rotation shaft.

6. The foldable projector according to claim 5, characterized in that: The second folding member (22) comprises a second folding shell (221) and a second pivoting connection mechanism (222); the sound box module is arranged inside the second folding shell (221); and the second folding shell (221) is rotatably connected to the projection module (1) via the second pivoting connection mechanism (222).

7. The foldable projector according to claim 6, characterized in that: The second pivot connection mechanism (222) comprises a second rotating shaft cover (2221) and a second rotating shaft. The second rotating shaft cover (2221) is connected to the second folding member (22) and is rotationally connected to the first folding member (21) via the second rotating shaft.

8. The foldable projector according to claim 7, characterized in that: The projection module (1) is provided with a first threading hole (11), the second rotating shaft cover (2221) is provided with a second threading hole (22212), the second folding member (22) is provided with a third threading hole (2215), and the transmission wire bundle in the second folding member (22) passes through the third threading hole (2215), the second threading hole (22212) and the first threading hole (11), and is connected to a mainboard in the projection module (1).

9. The foldable projector according to claim 8, characterized in that: The second folding shell (221) is provided with a fourth threading hole (2216), the first rotating shaft cover (2121) is provided with a fifth threading hole (21212), the first folding shell is provided with a sixth threading hole (2111), the conductive wire bundle in the first folding member (21) is passed through the sixth threading hole (2111), the fifth threading hole (21212), the fourth threading hole (2216), the third threading hole (2215), the second threading hole (22212) and the first threading hole (11), and is conductively connected to the mainboard in the projection module (1).

10. The foldable projector according to claim 2 or 3, characterized in that: The power supply module is a battery pack.

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