Outward-turning type multi-screen electronic equipment
By adopting an outward-folding multi-screen electronic device design, an internal fixed hinge structure, and a main and secondary screen layout, the problems of increased body openings and thickness in existing technologies are solved, thereby improving the user experience of multi-screen switching and lightweight grip.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-03-31
AI Technical Summary
When applying folding technology to existing single-screen tablets, holes need to be drilled on the side of the device to install the hinge, which affects the aesthetics and grip feel, and increases the thickness of the device, making it difficult to meet the diverse display and usage needs of users.
Design an outward-folding multi-screen electronic device, which adopts an inner fixed hinge structure connecting the first and second shells. The main screen and the secondary screen are installed on the front and back of the shell respectively. When folded, the second shell is folded to the back. When unfolded, it flips outward and displays the screen simultaneously, avoiding the need for opening holes in the side wall of the shell, and realizing the switching between single main screen and multi-screen secondary screen.
It enables flexible switching between multiple usage modes, maintains the integrity and thinness of the device's appearance, improves the grip and user experience, and meets different usage needs.
Smart Images

Figure CN121764302A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of electronic devices, specifically relating to an outward-folding multi-screen electronic device. Background Technology
[0002] Currently, existing electronic devices on the market, such as tablet computers, typically adopt a single-screen design, meaning that information is displayed through a single screen.
[0003] However, with the development of the times, conventional single-screen tablets can no longer meet users' needs for displaying richer information and more efficient human-computer interaction. Therefore, there is a trend in the market to apply folding technology (refer to folding mobile phone products) to tablets.
[0004] However, in practical applications, when using existing folding technology, mounting holes need to be machined on the side of the tablet to install the hinge. This not only easily damages the appearance of the device and affects its aesthetics, but the presence of the hinge also increases the thickness of the side of the device, making it impossible to achieve the slim and lightweight feel of a single-screen tablet when holding it, thus affecting the user's handheld experience. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an improved outward-folding multi-screen electronic device.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An outward-folding multi-screen electronic device includes a housing and a display module. The housing includes a first housing, a second housing, and a hinge. The hinge includes a first connecting body and a second connecting body fixedly connected to the inner sides of corresponding sides of the first housing and the second housing, respectively, and a rotating body rotatably connected between the first connecting body and the second connecting body and located at the rear of the first housing. The display module includes a main screen and a sub-screen correspondingly mounted on the front of the first housing and the back of the second housing. When folded, the second housing and the hinge fold synchronously to the back of the first housing, and the main screen and the sub-screen are displayed facing forward and backward, respectively. When unfolded, the second housing folds outward around the corresponding side of the first housing, and the main screen and the sub-screen are displayed facing forward simultaneously.
[0007] Preferably, when unfolded, the second housing rotates 180°, and the main screen and the secondary screen are flush. This allows for a flush display effect when used as a dual-screen setup.
[0008] Preferably, in the orthographic projection in the front-to-back direction, when folded, the second housing is located inside the outer contour of the first housing. This avoids the second housing being exposed when folded, improving the aesthetics of the appearance in single-screen use.
[0009] Specifically, in the front-to-back orthographic projection, the area of the second casing is 0.4 to 0.8 times the area of the first casing. The advantage of this design is that when using dual screens, the second casing will not completely obstruct the body of the first casing, allowing the user to hold the first casing with both hands from either side.
[0010] Preferably, a protrusion is formed on one of the back surface of the first housing and the front surface of the second housing, and a groove matching the protrusion is formed on the other housing. When folded, the front surface of the second housing fits against the back surface of the first housing, and the protrusion is inserted into the corresponding groove. In this folded state, the compactness and stability between the first and second housings can be improved, preventing the second housing from shaking and enhancing the user experience of the product.
[0011] Preferably, the first housing is recessed inward from the back to form a connecting groove, and a clearance groove is formed on the back that communicates with the connecting groove and is located near the corresponding side of the first housing. The first connector is fixedly connected in the connecting groove, and the second connector is fixedly connected to the front of the second housing. The rotating body connects the first connector and the second connector through the clearance groove. This design makes full use of the thickness of the first housing, facilitates the installation of the hinge, and also contributes to the overall thinning design of the housing.
[0012] Specifically, the rotating body includes a pull rod and a telescopic component. One end of the pull rod is slidably and rotatably connected to a first connecting body, and the other end is rotatably connected to a second connecting body via a first pivot. One end of the telescopic component is rotatably connected to the first connecting body via a second pivot, and the other end is slidably connected to the second connecting body. The first and second pivots are parallel, and the telescopic component extends and retracts along the flipping path of the second housing as the second housing flips. Here, the telescopic component controls the flipping trajectory of the second housing, and the pull rod assists in improving the stability during the hinge's unfolding or folding movements.
[0013] Furthermore, the end of the pull rod is fitted onto the first pivot and generates torque. This enhances the rotational feel.
[0014] Preferably, the second connector includes a connector body, a plurality of connectors disposed on one side of the connector body and spaced apart side by side along the axis of the first pivot, the first pivot traversing the plurality of connectors, and a plurality of pull rods inserted between adjacent connectors.
[0015] Furthermore, there are two telescopic components located on opposite sides of the second connector along the first pivot axis; each telescopic component includes multiple telescopic modules, wherein arc-shaped guide grooves are formed on the sidewalls of the second connector and each telescopic module, and the second connector and adjacent telescopic modules, as well as two adjacent telescopic modules, are slidably connected based on the corresponding arc-shaped guide grooves. This design is simple and facilitates assembly and implementation.
[0016] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art: Existing folding technologies require mounting holes on the side of the tablet to install hinges. This not only damages the appearance and aesthetics but also increases the thickness of the side, compromising the slim and lightweight feel of a single-screen tablet and impacting the user's grip. This application addresses these shortcomings by designing a holistic, outward-folding multi-screen electronic device that cleverly overcomes these limitations. The device utilizes a design where the first and second connectors are fixed to the inner sides of the corresponding sides of the first and second housings, avoiding holes in the side walls and maintaining the integrity and aesthetics of the design without increasing thickness. The main screen and secondary screen are mounted on the front of the first housing and the back of the second housing, respectively. When folded, the second housing is folded behind the first housing, allowing the main screen to be used in single-screen mode. When unfolded, the second housing is folded outward around the corresponding side of the first housing, displaying both the main and secondary screens simultaneously, enabling multi-screen mode. Therefore, compared with the prior art, the present invention adopts a multi-screen design with main and secondary screens to realize multiple usage modes of bidirectional display and unidirectional multi-screen display, flexibly meeting different user needs; on the other hand, based on the connection layout of the hinge and the first and second shells, it can avoid opening holes in the side wall of the shell, ensuring the integrity and aesthetics of the body shape, while ensuring the thinness of the body, improving the grip, and effectively enhancing the user experience. Attached Figure Description
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0018] Figure 1 This is a front view schematic diagram of the outward-folding multi-screen electronic device of the present invention (in unfolded state); Figure 2 This is a front view schematic diagram of the outward-folding multi-screen electronic device of the present invention (in folded state). Figure 3 This is a three-dimensional structural diagram of the outward-folding multi-screen electronic device of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure as seen from the A-axis viewpoint; Figure 5 for Figure 4 Enlarged schematic diagram of a partial cross-section along the BB direction; Figure 6 for Figure 5 Enlarged schematic diagram of the structure in its folded state; Figure 7 This is a schematic diagram of the hinge structure; Wherein: 1, housing; 11, first housing; 12, second housing; t, protrusion; c0, groove; c1, connecting groove; c2, clearance groove; 13, hinge; 131, first connecting body; 132, second connecting body; a0, connecting body; a1, connecting part; 133, rotating body; g, pull rod; s, telescopic component; s0, telescopic module; c3, arc-shaped guide groove; z1, first pivot; z2, second pivot; 2. Display module; 21. Main screen; 22. Secondary screen. Detailed Implementation
[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "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 based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.
[0024] like Figures 1 to 7 As shown, the outward-folding multi-screen electronic device of this embodiment includes a housing 1 and a display module 2.
[0025] Specifically, the housing 1 includes a first housing 11, a second housing 12, and a hinge 13; the display module 2 includes a main screen 21 and a secondary screen 22, which are respectively installed on the front of the first housing 11 and the back of the second housing 12.
[0026] In this example, hinge 13 includes a first connecting body 131 and a second connecting body 132, which are respectively fixedly connected to the inner sides of the corresponding sides of the first housing 11 and the second housing 12, and a rotating body 133, which is rotatably connected between the first connecting body 131 and the second connecting body 132 and located on the rear side of the first housing 11. When folded, the second housing 12 and hinge 13 are simultaneously folded to the back of the first housing 11, and the main screen 21 and the sub-screen 22 are displayed facing forward and backward, respectively. When unfolded, the second housing 12 is flipped outward around the corresponding side of the first housing 11 (i.e., the side of the first housing 11 and the second housing 12 adjacent to each other), and the main screen 21 and the sub-screen 22 are displayed facing forward simultaneously. In this embodiment, the second housing 12 is flipped around the left side of the first housing 11 to unfold or fold.
[0027] In some specific embodiments, when unfolded, the second housing 12 rotates 180°, and the main screen 21 and the secondary screen 22 are flush. Here, when unfolded for dual-screen use, a flush display effect can be achieved.
[0028] Meanwhile, in the orthographic projection in the front-to-back direction, when folded, the second housing 12 is located inside the outer contour of the first housing 11. This avoids exposing the second housing when folded, improving the aesthetics of the single-screen configuration.
[0029] In a front-to-back projection, the second housing 12 is positioned close to the upper side of the first housing 11, and the area of the second housing 12 is 0.4 to 0.8 times the area of the first housing 11. The advantage of this arrangement is that when dual screens are used, the second housing will not completely obstruct the body of the first housing, allowing the user to hold the first housing with both hands from the sides.
[0030] In other words, when the second housing 12 is unfolded to the left, the lower part of the left side of the first housing 11 will not be blocked by the second housing 12. Therefore, the user can easily hold the left and right sides of the first housing 11. In other words, this embodiment can still maintain the feel of traditional single-screen electronic devices in the dual-screen unfolded usage mode.
[0031] For ease of implementation, a protrusion t is formed on one of the back surface of the first housing 11 and the front surface of the second housing 12, and a groove c0 matching the protrusion t is formed on the other housing. When folded, the front surface of the second housing 12 fits against the back surface of the first housing 11, and the protrusion t is inserted into the groove c0. In this folded state, the compactness and stability between the first and second housings are improved, preventing the second housing from shaking and enhancing the product's usability.
[0032] In this example, the first housing 11 is recessed inward from the back to form a connecting groove c1, and a clearance groove c2 is formed on the back that communicates with the connecting groove c1 and is located near the left side of the first housing 11. The first connecting body 131 is fixedly connected in the connecting groove c1, and the second connecting body 132 is fixedly connected to the front of the second housing 12. The rotating body 133 is connected to the first connecting body 131 and the second connecting body 132 through the clearance groove c2. Here, the thickness of the first housing can be fully utilized, which facilitates the installation of the hinge and is also conducive to the overall thinning design of the housing.
[0033] In some specific embodiments, the rotating body 133 includes a pull rod g and a telescopic component s. One end of the pull rod g is slidably and rotatably connected to the first connecting body 131, and the other end is rotatably connected to the second connecting body 132 via a first pivot z1. One end of the telescopic component s is rotatably connected to the first connecting body 131 via a second pivot z2, and the other end is slidably connected to the second connecting body 132. The first pivot z1, the second pivot z2, and the left side of the first housing 11 are parallel, and the telescopic component s extends and retracts along the flipping path of the second housing 12 as the second housing 12 flips. Here, the flipping trajectory of the second housing is controlled by the telescopic component, and the stability under the hinge unfolding or folding movement is improved by the pull rod.
[0034] To further facilitate implementation, the second connector 132 includes a connector body a0, a plurality of connector parts a1 disposed on one side of the connector body a0 and distributed side by side at intervals along the axial direction of the first pivot z1, the first pivot z1 passing through the plurality of connector parts a1, and multiple pull rods g inserted between adjacent connector parts a1.
[0035] Meanwhile, the pull rod g gradually thins from the second connector 132 toward the first connector 131, and the end of the pull rod g is fitted onto the first pivot z1 to generate torque. This improves the feel of rotation.
[0036] Furthermore, there are two telescopic components s, located axially on opposite sides of the second connecting body 132 along the first pivot z1. Each telescopic component s includes multiple telescopic modules s0, wherein arc-shaped guide grooves c3 are formed on the sidewalls of the second connecting body 132 and each telescopic module s0. The second connecting body 132 and adjacent telescopic modules s0, as well as two adjacent telescopic modules s0, are slidably connected based on their corresponding arc-shaped guide grooves c3. This design is simple and facilitates assembly and implementation.
[0037] In summary, by adopting this outward-folding multi-screen electronic device, the design of fixing the first and second connectors to the inner sides of the corresponding sides of the first and second shells respectively avoids opening holes in the side walls of the shell, ensuring the integrity and aesthetics of the appearance, and does not increase the thickness of the body; at the same time, the main screen and the secondary screen are installed on the front of the first shell and the back of the second shell respectively. When folded, the second shell is folded to the back of the first shell, so that the main screen can be used as a single screen mode; when unfolded, the second shell is folded outward around the corresponding side of the first shell, at which time the main and secondary screens are displayed facing forward simultaneously, so that the device can be switched to multi-screen mode. Therefore, compared with the prior art, this invention has several advantages. First, it adopts a multi-screen design with main and secondary screens, enabling various usage modes such as bidirectional and unidirectional multi-screen display to flexibly meet different user needs. Second, based on the connection layout of the hinge and the first and second shells, it avoids opening holes in the side walls of the shells, ensuring the integrity and aesthetics of the body shape, while maintaining the thinness and lightness of the body, improving the grip, and effectively enhancing the user experience. Third, when unfolded for dual-screen use, it achieves a flush display effect. Fourth, when using dual screens, the second shell does not completely obstruct the body of the first shell, allowing the user to hold the first shell with both hands from both sides. Fifth, in the folded state, it improves the compactness and stability between the first and second shells, preventing the second shell from shaking and enhancing the product's usability. Sixth, it fully utilizes the thickness of the first shell, facilitating hinge installation and contributing to the overall thinning design of the body. Seventh, it controls the flipping trajectory of the second shell based on telescopic components, and enhances the stability of the hinge during unfolding or folding movements with the assistance of a pull rod.
[0038] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.
Claims
1. An outward-folding multi-screen electronic device, comprising a casing and a display module, characterized in that, The housing includes a first housing, a second housing, and a hinge, wherein the hinge includes a first connecting body and a second connecting body fixedly connected to the inner sides of corresponding sides of the first housing and the second housing, and a rotating body rotatably connected between the first connecting body and the second connecting body and located on the rear side of the first housing. The display module includes a main screen and a secondary screen, which are respectively installed on the front of the first housing and the back of the second housing. When folded, the second housing and the hinge are folded back to the back of the first housing, and the main screen and the secondary screen are displayed facing forward and backward, respectively. When unfolded, the second housing is flipped outward around the corresponding side of the first housing, and the main screen and the secondary screen are displayed facing forward.
2. The outward-folding multi-screen electronic device according to claim 1, characterized in that, When unfolded, the second housing rotates 180°, and the main screen and the secondary screen are set flush.
3. The outward-folding multi-screen electronic device according to claim 1, characterized in that, In the orthographic projection in the front-back direction, when folded, the second housing is located inside the outer contour of the first housing.
4. The outward-folding multi-screen electronic device according to claim 3, characterized in that, In the orthographic projection in the front-back direction, the area of the second shell is 0.4 to 0.8 times the area of the first shell.
5. The outward-folding multi-screen electronic device according to claim 1, characterized in that, A protrusion is formed on one of the back surface of the first housing and the front surface of the second housing, and a groove is formed on the other housing that matches the protrusion. When folded, the front surface of the second housing fits against the back surface of the first housing, and the protrusion is inserted into the groove.
6. The outward-folding multi-screen electronic device according to claim 1, characterized in that, The first housing has a connecting groove recessed inward from the back side and a clearance groove formed on the back side that communicates with the connecting groove and is located near the corresponding side of the first housing. The first connecting body is fixedly connected in the connecting groove, and the second connecting body is fixedly connected to the front side of the second housing. The rotating body is connected to the first connecting body and the second connecting body through the clearance groove.
7. The outward-folding multi-screen electronic device according to claim 6, characterized in that, The rotating body includes a pull rod and a telescopic component, wherein one end of the pull rod is slidably and rotatably connected to the first connecting body, and the other end is rotatably connected to the second connecting body via a first pivot; one end of the telescopic component is rotatably connected to the first connecting body via a second pivot, and the other end is slidably connected to the second connecting body, wherein the first pivot and the second pivot are parallel, and as the second housing rotates, the telescopic component extends and retracts along the rotation path of the second housing.
8. The outward-folding multi-screen electronic device according to claim 7, characterized in that, The end of the pull rod is sleeved on the first pivot and generates torque.
9. The outward-folding multi-screen electronic device according to claim 7 or 8, characterized in that, The second connector includes a connector body, a plurality of connectors disposed on one side of the connector body and spaced apart side by side along the first pivot axis, the first pivot axis passing through the plurality of connectors, and multiple pull rods inserted between adjacent connectors.
10. The outward-folding multi-screen electronic device according to claim 7, characterized in that, There are two telescopic components located on opposite sides of the second connector in the first pivot axis; the telescopic components include multiple telescopic modules, wherein arc-shaped guide grooves are formed on the sidewalls of the second connector and the sidewalls of each telescopic module, and the second connector and adjacent telescopic modules, and two adjacent telescopic modules are slidably connected based on the corresponding arc-shaped guide grooves.