Folding projector

Abstract

The utility model 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 utility model relates to the technical field of projection appliances, and particularly relates to a folding projector. BACKGROUND

[0002] The projector is a kind of equipment that can project video, image or text on the screen to display, and is widely used in family, conference room, school or cinema and other places nowadays, but the traditional projector is bulky, heavy, inconvenient to move and carry with oneself.With the development of technology, people have higher requirements on the volume and portability of projector, and because the existing projector structure is complex and needs more parts, how to reduce the volume while improving the convenience of use has become a difficult problem to be solved nowadays.

[0003] For the above problems, the existing related technology provides a variety of projectors that can reduce the volume and be convenient to carry.For example, the prior art with application number 201721019860.5 provides a foldable device and a projection device using the folding device, which connects the base and the shell provided with the projector to the folding mechanism, so that when the folding mechanism deforms, the device can reduce the volume, thereby facilitating carrying.However, the common problem of the projection device and the existing improved projector is poor heat dissipation performance, and after long time use, the internal temperature of the projector is too high, thereby causing the decline of use stability and service life.

[0004] Therefore, it is necessary to design a folding projector to solve the problems in the prior art. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a folding projector, which is convenient to carry, store and use, and can also optimize the heat dissipation performance, thereby improving the use stability and service life.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The folding projector comprises a projection module and an auxiliary module connected in conduction, and the projection module is pivotally connected to the auxiliary module, so that the projection module and the auxiliary module can form a folding structure.

[0008] As a preferred, the auxiliary module comprises a power supply module, a sound box module and a first folding piece, the sound box module and the power supply module are integrated on the first folding piece, and are connected in conduction to the projection module, and the first folding piece is pivotally connected to the projection module.

[0009] As preferred, the auxiliary module comprises a power supply module, a sound box module, a first folding piece and a second folding piece, the sound box module and the power supply module are electrically connected to the projection module, 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 sound box module is installed on the second folding piece.

[0010] As preferred, the first folding piece comprises a first folding shell and a first pivot connection mechanism, the first folding shell is provided with the power supply module, and the first folding shell is rotationally connected to the second folding piece through the first pivot connection mechanism.

[0011] As preferred, the first pivot connection mechanism comprises a first pivot shaft cover and a first pivot shaft, the first pivot shaft cover is connected to the projection module, and the first pivot shaft cover is rotationally connected to the second folding piece through the first pivot shaft.

[0012] As preferred, the second folding piece comprises a second folding shell and a second pivot connection mechanism, the second folding shell is provided with the sound box module, and the second folding shell is rotationally connected to the projection module through the second pivot connection mechanism.

[0013] As preferred, the second pivot connection mechanism comprises a second pivot shaft cover and a second pivot shaft, the second pivot shaft cover is connected to the second folding piece, and the second pivot shaft cover is rotationally connected to the first folding piece through the second pivot shaft.

[0014] As preferred, the projection module is provided with a first threading hole, the second pivot shaft cover is provided with a second threading hole, the second folding piece is provided with a third threading hole, a transmission wire 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 a mainboard in the projection module.

[0015] As preferred, the second folding shell is provided with a fourth threading hole, the first pivot shaft cover is provided with a fifth threading hole, the first folding shell is provided with a sixth threading hole, a conductive wire harness in the first folding piece passes 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 electrically connected to the mainboard in the projection module.

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

[0017] The folding projector provided by the utility model has the beneficial effects that: when the folding projector is folded, the projection module and the auxiliary module can be connected in close contact to form a compact structure, and the folding projector occupies a small volume, thereby facilitating the user to store and carry the folding projector; when the folding projector is unfolded for use, the projection module can rotate in a direction away from the auxiliary module, so that the auxiliary module can avoid the heat dissipation route of the projection module, the projection module has sufficient space for heat dissipation, the cost of heat dissipation is reduced, and the use stability and service life of the entire folding projector are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic view of the folding projector provided by the utility model embodiment one when being unfolded;

[0019] Figure 2 is a structure schematic view of the folding projector provided by the utility model embodiment one when being folded;

[0020] Figure 3 is a top view of the first rotating shaft cover provided by the utility model embodiment one;

[0021] Figure 4 is a sectional view along Figure 3 A-A in the figure;

[0022] Figure 5 is a structure schematic view of the second folding shell under the first visual angle provided by the utility model embodiment one;

[0023] Figure 6 is a structure schematic view of the projection module provided by the utility model embodiment one;

[0024] Figure 7 is a top view of the second rotating shaft cover provided by the utility model embodiment one;

[0025] Figure 8 is a sectional view along Figure 7 B-B in the figure;

[0026] Figure 9 is a structure schematic view of the second folding shell under the second visual angle provided by the utility model embodiment one;

[0027] Figure 10 is a structure schematic view of the first folding shell provided by the utility model embodiment one;

[0028] Figure 11 is a structure schematic view of the folding projector provided by the utility model embodiment two when being folded.

[0029] In the figure:

[0030] 1, projection module; 11, first threading hole;

[0031] 21, first folding piece; 22, second folding piece;

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

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

[0034] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0035] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and "left," 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.

[0038] The technical solution provided by this utility model will be described below with reference to the accompanying drawings and two specific embodiments.

[0039] Example 1

[0040] Combination Figures 1 to 10 As shown, this embodiment of the present invention provides a foldable projector, including a projection module 1 and an auxiliary module 2 electrically connected. The projection module 1 and the auxiliary module 2 are pivotally connected so that they can form a foldable structure. When the foldable projector is in the folded state, the projection module 1 and the auxiliary module 2 can be fitted together to form a compact structure. The resulting compact structure occupies less space, thus making it convenient for users to store and carry.

[0041] In this embodiment, the projection module 1 mainly includes a driver board, a control motherboard, a display panel, a light source, a lens, and a heat sink. The driver board, display panel, light source, heat sink, and driver board are all connected to the control motherboard. The driver board can distribute the power transmitted from the control motherboard to the display panel, light source, and heat sink. The control motherboard can control the display panel to generate an image and control the light source to turn on, so that the light source can generate sufficiently strong light to illuminate the image and project it onto the screen. At the same time, it can control the heat sink to turn on, so as to dissipate heat from the heat-generating parts (mainly concentrated in the light source) and prevent the heat-generating parts from overheating and affecting the working performance of the foldable projector.

[0042] It should be noted that the heat sink can be a cooling fan, heat sink fins, or other heat dissipation structures, as long as the heat sink structure is small in size and meets the heat dissipation requirements. This embodiment is not limited in this respect.

[0043] refer to Figure 1 , Figure 2As shown, the auxiliary module 2 specifically comprises a power supply module, a sound box module, a first folding piece 21 and a second folding piece 22. In this embodiment, the power supply module is preferably a battery pack. The battery pack has high energy density, and accordingly, the volume and weight of the power supply module can be reduced to meet the use requirements of the portable folding projector. Moreover, the battery pack can provide a longer use time, so that the use durability of the folding projector is longer, thereby bringing a better use experience. In addition, since the power supply module is easy to charge and has a fast charging speed, the folding projector can quickly recover the working ability after the power is consumed, thereby further improving the use experience.

[0044] In one embodiment of the present embodiment, the power supply module is conductively connected to the drive board in the projection module 1, and the sound box module is conductively connected to the main board in the projection module 1 to control the opening and closing of the sound box module through the main board. The two ends of the second folding piece 22 are respectively pivotally connected to the projection module 1 and the first folding piece 21, and the power supply module is installed on the first folding piece 21, and the sound box module is installed on the second folding piece 22.

[0045] Through the above arrangement, the projection module 1, the power supply module and the sound box module can be independently divided into three parts, and the folding projector is formed into a three-folded projector. In this way, when the folding projector is unfolded, the projection module 1, the power supply module and the sound box module can be dispersed from each other and cannot be gathered in the same housing space, thereby reducing the mutual interference and influence during work. Moreover, when the folding projector is unfolded, the projection module 1 can be rotated in a direction relatively away from the power supply module and the sound box module, so that the power supply module and the sound box 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 further improving the use stability and life of the entire folding projector.

[0046] Specifically, the first folding piece 21 provided by the present embodiment comprises a first folding housing 211 and a first pivot 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 rotationally connected to the second folding piece 22 through the first pivot connection mechanism 212 to realize that the first folding piece 21 can be rotated in a direction relatively close to or away from the second folding piece 22. Through the above arrangement, when the first folding piece 21 is supported and arranged on the horizontal ground, and the second folding piece 22 is rotated relative to the first folding piece 21, the second folding piece 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, in combination with the above description of the first folding piece 21, the second folding piece 22 comprises a second folding housing 221 and a second pivot connection mechanism 222. The second folding housing 221 has a cavity for accommodating the projection module 1 to protect the projection module 1, and the second folding housing 221 can be rotationally connected to the first folding piece 21 through the second pivot connection mechanism 222 to realize that the second folding piece 22 can be rotated in a direction relatively close to or away from the first folding piece 21. Figures 3 to 5As shown, the first pivot connection mechanism 212 comprises a first pivot cover 2121 and a first pivot shaft. In one embodiment of the present embodiment, the first pivot cover 2121 is a long block structure, one end of the first pivot cover 2121 is fixedly connected to the second folding part 22 through a locking part, and first pivot holes 21211 are formed in the two sides of the first pivot cover 2121 along the length direction of the first pivot cover 2121. One end of the second folding part 22 is provided with a first mounting groove 2211, and each side wall of the first mounting groove 2211 is provided with a second pivot hole 2212. The first pivot cover 2121 is inserted into the first mounting groove 2211, and the second pivot holes 2212 are one-to-one correspondingly arranged in the first pivot holes 21211. In addition, the first pivot shaft is provided with two, and each second pivot hole 2212 is rotatably connected to the first pivot hole 21211 through the first pivot shaft.

[0048] Through the above arrangement, the structure of the first pivot connection mechanism 212 is effectively simplified, the assembly difficulty is reduced, and the stable rotation connection between the first folding part 21 and the second folding part 22 is ensured. In addition, the arrangement of the first pivot cover 2121 can optimize the spatial layout of the first folding part 21 and the second folding part 22, so that the first folding part 21 and the second folding part 22 can be more compactly fitted after folding, avoiding the interference of the end of the second folding part 22 with the folding of the first folding part 21, which causes the complete storage.

[0049] Specifically, the second folding part 22 provided by the present embodiment comprises a second folding shell 221 and a second pivot connection mechanism 222. The second folding shell 221 has a cavity for accommodating a sound box module to protect the sound box module. One end of the second folding shell 221 is provided with the first mounting groove 2211 described above, 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 be rotated relative to the second folding part 22.

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

[0051] More specifically, in combination with Figures 7 to 9As shown, the second pivot connection mechanism 222 comprises a second pivot cover 2221 and a second pivot shaft. In one of the embodiments of the present embodiment, the second pivot cover 2221 is configured in the same way as the first pivot cover 2121 to facilitate mass production and reduce costs. One end of the second pivot cover 2221 is fixedly connected to the projection module 1 by a locking member, and third adapter holes 22211 are formed in the length direction of the second pivot cover 2221 on both sides of the second pivot cover 2221. The other end of the second folding shell 221 is provided with a second mounting groove 2213, and each of the two side walls of the second mounting groove 2213 is provided with a fourth adapter hole 2214. The second pivot cover 2221 is inserted into the second mounting groove 2213, and the third adapter holes 22211 are correspondingly arranged in the fourth adapter holes 2214. In addition, the second pivot shaft is provided with two, and each fourth adapter hole 2214 is rotatably connected to the third adapter hole 22211 by the second pivot shaft.

[0052] Through the above arrangement, the structure of the second pivot connection mechanism 222 is also more simple, which ensures that the projection module 1 and the second folding part 22 are stably rotatably connected, and at the same time can also ensure that the two can be completely connected. The folding projection device is further facilitated to be stored and carried.

[0053] Further, in the present embodiment, the shell of the projection module 1, the first folding part 21 and the second folding part 22 are all flat square shell structures, so that after folding, the overall structure is more compact, which can further reduce the volume occupancy of the folding projection device in space, so that it can be applied to space-limited application scenarios, and is more convenient to carry and move, so that its applicability is wider. In addition, the flat design can also effectively increase the heat dissipation area of the projection module 1, so as to achieve better heat dissipation effect with the help of the heat sink.

[0054] In the present embodiment, as shown in Figure 5 , Figure 6 and Figure 8 , the projection module 1 is provided with a first threading hole 11, the second pivot cover 2221 is further provided with a second threading hole 22212, and the second folding shell 221 is provided with a third threading hole 2215. After the transmission wire harness on the sound box module in the second folding part 22 passes through the third threading hole 2215, the second threading hole 22212 and the first threading hole 11 in sequence, it is connected to the mainboard in the projection module 1. This layout can make the transmission wire harness on the sound box module more convenient to manage, avoiding complex wiring operations. In addition, whether the folding projection device is in an extended state or a compressed state, the first pivot cover 2121 can protect the above-mentioned transmission wire harness, avoiding the exposure of the transmission wire harness to the external environment, so as to prevent damage caused by external factors.

[0055] More specifically, in the present embodiment, as shown in Figure 4, Figure 9 and Figure 10 As shown, the second folding housing 221 is provided with a fourth wiring hole 2216, the first pivot cover 2121 is provided with a fifth wiring hole 21212, and the first folding housing 211 is provided with a sixth wiring hole 2111. The conductive wires on the battery pack located inside the first folding housing 211 pass through the sixth wiring hole 2111, the fifth wiring hole 21212, the fourth wiring hole 2216, the third wiring hole 2215, the second wiring hole 22212, and the first wiring hole 11 in sequence, and then connect to the motherboard inside 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 wires on the battery pack is more reasonable and safer. By constraining and protecting the conductive wires through the above six wiring holes, it can be ensured that the conductive wires are not easy to loosen or fall off, and at the same time, the risk of the conductive wires being scratched or worn by the external environment can be avoided.

[0056] Example 2

[0057] refer to Figure 11 As shown, this embodiment provides a foldable projector. Unlike Embodiment 1, in this embodiment, the foldable projector only includes a first folding member 21. The first folding member 21 is directly rotatably connected to the projection module 1, and the speaker module and power supply module are both integrated and installed on the first folding member 21. This allows the projection module 1, power supply module, and speaker module to be independently divided into two parts, thus forming a double-fold projector. With the above configuration, when the foldable projector is unfolded, the projection module 1 can also be separated from the power supply module, thereby achieving the same technical effect of improving the heat dissipation performance of the projection module 1. Furthermore, it can further reduce the space occupied by the foldable projector when unfolded or folded, making it more convenient to use and carry, and with a wider range of applications.

[0058] Therefore, those skilled in the art can choose whether the speaker module and the power supply module are integrated together in the first folding member 21 or set separately in the first folding member 21 and the second folding member 22, depending on the actual working conditions. This utility model does not make any specific limitations in this regard.

[0059] It should be noted that for projectors that include other types of modules besides the projection module 1, speaker module, and power supply module, the method described in Example 1, where different modules are independently mounted on different folding components, can be used to design the foldable projector with more folding layers. This allows multiple modules to be independently installed without being integrated with the projection module 1 when unfolded, improving the heat dissipation performance and efficiency of the projection module 1; when folded, multiple modules can be folded together, thus meeting the requirements for convenient storage and portability.

[0060] In the description of the specification, the description referring to the terms "some embodiments", "other embodiments", etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearance of the above-mentioned terms in various places in the specification are not necessarily referring to the same embodiment or example. Moreover, the particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0061] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A folded projector, characterized by The projection module (1) and the auxiliary module (2) are electrically connected, and the projection module (1) is pivotally connected to the auxiliary module (2) to form a folding structure, wherein: The auxiliary module includes a power supply module, a sound box module and a first folding part (21), the sound box module and the power supply module are both integrated on the first folding part (21) and are electrically connected to the projection module (1), and the first folding part (21) is pivotally connected to the projection module (1). Alternatively, the auxiliary module (2) includes a power supply module, a sound box module, a first folding part (21) and a second folding part (22), the sound box module and the power supply module are electrically connected to the projection module (1), the two ends of the second folding part (22) are pivotally connected to the projection module (1) and the first folding part (21) respectively, the power supply module is installed on the first folding part (21), and the sound box module is installed on the second folding part (22).

2. The folded projector of claim 1, wherein, The first folding part (21) includes a first folding shell (211) and a first pivot connection mechanism (212), the first folding shell (211) is provided with the power supply module, and is rotationally connected to the second folding part (22) through the first pivot connection mechanism (212).

3. The folded projector of claim 2, wherein, The first pivot connection mechanism (212) includes a first pivot cover (2121) and a first pivot shaft, the first pivot cover (2121) is connected to the projection module (1) and is rotationally connected to the second folding part (22) through the first pivot shaft.

4. The folded projector of claim 3, wherein, The second folding part (22) includes a second folding shell (221) and a second pivot connection mechanism (222), the second folding shell (221) is provided with the sound box module, and the second folding shell (221) is rotationally connected to the projection module (1) through the second pivot connection mechanism (222).

5. The folded projector of claim 4, wherein, The second pivot connection mechanism (222) includes a second pivot cover (2221) and a second pivot shaft, the second pivot cover (2221) is connected to the second folding part (22) and is rotationally connected to the first folding part (21) through the second pivot shaft.

6. The folded projector of claim 5, wherein, The projection module (1) is provided with a first threading hole (11), the second pivot cover (2221) is provided with a second threading hole (22212), the second folding part (22) is provided with a third threading hole (2215), and a transmission wire harness in the second folding part (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).

7. The folded projector of claim 6, wherein, The second folding shell (221) is provided with a fourth wire hole (2216), the first rotating shaft cover (2121) is provided with a fifth wire hole (21212), the first folding shell is provided with a sixth wire hole (2111), and a conductive wire harness in the first folding part (21) is arranged through the sixth wire hole (2111), the fifth wire hole (21212), the fourth wire hole (2216), the third wire hole (2215), the second wire hole (22212) and the first wire hole (11), and is conductively connected to the mainboard in the projection module (1).

8. The foldable projector according to claim 1, wherein, The power supply module is a battery pack.

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