Electronic shaking sign toy and mainboard fixing device thereof

Abstract

The utility model discloses an electronic shaking sign toy and a mainboard fixing device thereof, and relates to the technical field of electronic toys, the mainboard fixing device comprises a shell, a mainboard and a side elastic limiting block; the shell is provided with a containing groove, and a buckle is arranged at the bottom of the containing groove; a clamping groove is formed in the position, corresponding to the buckle, of the main board; the side elastic limiting blocks are symmetrically arranged on at least one opposite side edge of the main plate; one side of the middle concave part of the side elastic limiting block abuts against the main plate, and the other side of the middle concave part of the side elastic limiting block is attached to the side wall of the containing groove; the middle sunken part of the side elastic limiting block is compressed and clamped between the main plate and the side wall of the accommodating groove; and the mainboard is stably fixed in the accommodating groove through the elasticity of the side elastic limiting blocks and the matching of the buckles and the clamping grooves. Through the elastic deformation of the elastic limiting blocks on the side surfaces and the vertical matching of the buckles and the clamping grooves, the unification of the structural reliability and the assembly convenience can be realized.

Description

Technical Field

[0001] This utility model relates to the field of electronic toy technology, and in particular to an electronic lottery toy and its motherboard fixing device. Background Technology

[0002] Among traditional interactive electronic toys, an innovative toy that blends traditional Chinese almanac elements with modern interactive experiences is gaining popularity among young consumers. This type of toy, through the coordinated action of its built-in mechanical structure and electronic control system, can simulate the shaking motion of a traditional bamboo divination stick container, displaying prompts and other information, thus providing both entertainment and cultural value.

[0003] In existing products, when users perform the lottery operation, the resulting vibration energy is transmitted mechanically to the internal structure of the device. Especially since the users are primarily young people, these toys are prone to high-frequency, high-amplitude reciprocating shaking. Under such circumstances, the mainboard components and peripheral circuit connectors in the toy are susceptible to a cumulative effect of micro-displacement. This mechanical stress transmission leads to increased contact impedance of the connectors, subsequently causing systemic malfunctions such as abnormal signal transmission or even functional failure.

[0004] Toy manufacturers commonly employ mechanical reinforcement solutions to address this issue: multi-level threaded fasteners are added to create a multi-point constraint structure, high-density mounting holes are arranged around the main board, and the preload of the bolts is used to achieve rigid connections between components. However, while this solution ensures structural stability under static conditions, it suffers from several drawbacks: the large number of holes and the need for precise alignment at each connection point lead to complex and time-consuming assembly processes, increasing production costs. Furthermore, the dense mechanical fixing points create multiple stress concentration areas within the main board surface, which may induce microcrack propagation in the substrate under shaking, ultimately reducing structural reliability.

[0005] Therefore, there is an urgent need to develop a new structural stabilization solution that can achieve low-cost, rapid assembly and maintenance, as well as optimized stress distribution, while ensuring the reliability of the vibration environment, thereby enhancing the product's market competitiveness. Utility Model Content

[0006] The technical problem to be solved by this utility model embodiment is how to construct a new structural stability scheme that achieves low-cost rapid assembly and maintenance and optimized stress distribution balance while ensuring the reliability of the vibration environment.

[0007] To address the aforementioned problems, in a first aspect, this utility model provides an electronic lottery toy motherboard fixing device, comprising a housing, a motherboard, and side elastic limiting blocks; the housing is provided with a receiving groove, and a buckle is provided at the bottom of the receiving groove; the motherboard is provided with a slot at the position corresponding to the buckle; the motherboard has at least one opposite side symmetrically provided with the side elastic limiting blocks; the cross-section of the side elastic limiting block is "U"-shaped, with one side of the central recessed portion abutting against the motherboard and the other side conforming to the side wall of the receiving groove; the central recessed portion of the side elastic limiting block is compressed and clamped between the motherboard and the side wall of the receiving groove; through the elasticity of the side elastic limiting block and the cooperation of the buckle-slot, the motherboard is securely fixed in the receiving groove.

[0008] A further technical solution is that the side elastic limiting block is a core-shell structure in which the outer shell layer covers the inner core layer, the inner core layer is highly elastic silicone, and the outer shell layer is thermoplastic polyurethane.

[0009] A further technical solution is that the thickness of the side elastic limiting block is 1.5 to 4.0 mm.

[0010] A further technical solution is that the number of the side elastic limiting blocks is at least four.

[0011] A further technical solution is that the side elastic limiting block is attached to the side wall of the receiving groove by an adhesive.

[0012] A further technical solution is that the side elastic limiting block has an anti-slip pattern on the side that abuts against the motherboard.

[0013] A further technical solution is that the number of the buckles is at least three.

[0014] A further technical solution is that the electronic lottery toy motherboard fixing device also includes an upper cover, which is detachably fitted onto the receiving groove of the housing.

[0015] A further technical solution is that the motherboard is equipped with a motion sensor.

[0016] Secondly, this utility model embodiment proposes an electronic lottery toy, including the electronic lottery toy motherboard fixing device as described in the first aspect.

[0017] Compared with the prior art, the technical effects achieved by the embodiments of this utility model include:

[0018] This utility model provides an electronic lottery toy motherboard fixing device, including a housing, a motherboard, and side elastic limiting blocks. The housing has a receiving groove, and a buckle is provided at the bottom of the receiving groove. The motherboard has a slot at the position corresponding to the buckle. The motherboard has at least one opposite side symmetrically provided with the side elastic limiting blocks. The cross-section of the side elastic limiting block is "U"-shaped, with one side of the central recessed part abutting against the motherboard and the other side conforming to the side wall of the receiving groove. The central recessed part of the side elastic limiting block is compressed and clamped between the motherboard and the side wall of the receiving groove. Through the elasticity of the side elastic limiting block and the cooperation of the buckle and slot, the motherboard is firmly fixed in the receiving groove. The electronic lottery toy motherboard fixing device provided by this utility model, through the "U"-shaped cross-section design of the side elastic limiting block, has its recessed part compressed and clamped between the motherboard and the side wall of the receiving groove, with both sides of the limiting block abutting against the motherboard and conforming to the groove wall respectively, forming bidirectional elastic support. This invention utilizes the elastic deformation of the material to generate a continuous counterforce, directly counteracting the displacement tendency of the motherboard under vibration or impact, thereby enhancing the motherboard's horizontal stability. Furthermore, the vertical fit between the latch and the slot further constrains the longitudinal freedom of the motherboard within the receiving groove, preventing vertical loosening due to external forces; combined with the lateral constraint of the elastic limiting block, a composite fixing mechanism of "lateral elastic limiting + longitudinal latch locking" is formed. The synergistic effect of these two mechanisms enables the motherboard to be fixed without gaps in three-dimensional space, achieving a balance between structural reliability and ease of assembly. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a cross-sectional schematic diagram of the motherboard assembly onto the housing of an electronic lottery toy motherboard fixing device according to an embodiment of the present invention;

[0023] Figure 2This is a schematic diagram of the side elastic limiting block of an electronic lottery toy motherboard fixing device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the mainboard of an electronic lottery toy mainboard fixing device according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the housing of an electronic lottery toy motherboard fixing device according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of an electronic lottery toy proposed in an embodiment of the present invention.

[0027] Figure Labels

[0028] 10 housing, 20 motherboard, 21 card slot, 30 side elastic limit block, 40 receiving groove, 50 recessed part, 60 top cover. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0031] It should also be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0032] See Figures 1-4This utility model embodiment proposes a motherboard fixing device for an electronic lottery toy. This motherboard fixing device can effectively fix the motherboard 20 of the electronic lottery toy and is simple to assemble. To achieve the above technical effects, the electronic lottery toy motherboard fixing device includes a housing 10, a motherboard 20, and a side elastic limiting block 30. The specific structure is described as follows:

[0033] The housing 10 is provided with a receiving groove 40, and a buckle (not shown) is provided at the bottom of the receiving groove 40; the motherboard 20 is provided with a matching slot 21 at the position corresponding to the buckle; the motherboard 20 is provided with the side elastic limiting block 30 symmetrically on at least one opposite side (for example, the left and right sides, the top and the bottom sides of the motherboard 20).

[0034] The side elastic limiting block 30 has a "U" shaped cross section, with one side of the central recessed portion 50 abutting against the main board 20 and the other side conforming to the side wall of the receiving groove 40; the central recessed portion 50 of the side elastic limiting block 30 is compressed and clamped between the main board 20 and the side wall of the receiving groove 40; through the elasticity of the side elastic limiting block 30 and the cooperation of the buckle-slot, the main board 20 is firmly fixed in the receiving groove 40.

[0035] In this example, by setting the side elastic limiting block 30 to cooperate with the receiving groove 40 inside the housing 10, the deformation characteristics of the elastic material combined with the snap-and-slot design achieve dynamic fixation of the main board 20. Compared with traditional rigid fasteners, the side elastic limiting block 30 generates a continuous compressive force in the horizontal direction, which can adaptively adjust the contact pressure under vibration conditions, effectively suppressing the horizontal displacement of the main board 20 and avoiding stress concentration problems caused by rigid connections. Furthermore, through the "U"-shaped cross-section design of the side elastic limiting block 30, its recessed part 50 is compressed and clamped between the main board 20 and the side wall of the receiving groove 40, with the two sides of the limiting block abutting against the main board 20 and conforming to the side wall of the receiving groove 40, forming a bidirectional elastic support. The continuous reverse force generated by the elastic deformation of the material directly counteracts the displacement tendency of the main board under vibration or impact, thereby enhancing the horizontal stability of the main board 20. Furthermore, the vertical engagement of the latch and the slot further constrains the longitudinal freedom of the motherboard 20 within the receiving groove 40, preventing vertical loosening due to external forces. Combined with the lateral constraint of the side elastic limiting block 30, a composite fixing mechanism of "lateral elastic limiting + longitudinal latch locking" is formed. The synergistic effect of the two enables the motherboard 20 to be fixed without gaps in three-dimensional space, significantly improving its impact resistance and fatigue resistance.

[0036] The electronic lottery toy motherboard fixing device proposed in this embodiment does not require multi-level bolt assembly, has high reliability, simplifies the installation process, and significantly reduces production.

[0037] In some preferred embodiments, the number of side elastic limiting blocks 30 is at least four. The force on the main board is evenly distributed by the symmetrically distributed limiting blocks, reducing the risk of stress concentration at single points. At least four side elastic limiting blocks 30 form a ring constraint, covering the long and short sides of the main board 20, improving horizontal displacement resistance, which is particularly suitable for irregular vibration scenarios.

[0038] In a specific embodiment, the main board 20 is symmetrically provided with six side elastic limiting blocks 30 at its four corners and the midpoint of its long side, forming a symmetrical multi-point fixation and a full-circumferential elastic constraint system. The symmetrically arranged elastic limiting blocks distribute the force on the main board, avoiding local stress concentration and eliminating the risk of tilting or deflection of the main board 20 due to uneven force on one side. Especially for the multi-axis swinging conditions unique to lottery toys, this significantly improves the main board 20's resistance to displacement under complex motion conditions. This design, through mechanical balance optimization, avoids local stress overload, extends the service life of the elastic limiting blocks, and ensures that the main board 20 remains at its geometric center in dynamic environments, maintaining the stability of electronic component connections.

[0039] In some preferred embodiments, the side elastic limiting block 30 is a core-shell structure with an outer shell layer covering the inner core layer. The inner core layer is made of highly elastic silicone (Shore hardness 30A), and the outer shell layer is made of thermoplastic polyurethane. This embodiment utilizes the composite structure of the highly elastic silicone core layer and the thermoplastic polyurethane outer shell layer. The core provides flexible cushioning to absorb vibration energy from the motherboard, while the outer shell layer enhances wear resistance and anti-aging capabilities. This core-shell structure ensures elastic deformation capability while extending the service life of the limiting block and preventing material fatigue failure due to long-term compression. Understandably, the ratio of the inner core layer to the outer shell layer can be designed according to actual needs, and this invention does not limit this. In this embodiment, elastic deformation is primarily provided for the recessed portion 50; therefore, the ratio of the inner core layer thickness to the outer shell layer thickness in the recessed portion 50 is set to 1:0.5; the ratio of the inner core layer thickness to the outer shell layer thickness in other portions is 1:1.

[0040] In some preferred embodiments, the thickness of the side elastic limiting block 30 is 1.5–4.0 mm. Within this range, the side elastic limiting block 30 provides sufficient elastic compression stroke (below 1.5 mm is prone to rigidification, above 4.0 mm is prone to excessive deformation) while ensuring a tight fit with the main board and the slot wall. By optimizing the thickness matching, a balance between elastic support force and structural strength is achieved, avoiding fixation failure caused by being too thin or too thick.

[0041] In a specific implementation, the thickness of the side elastic limiting block 30 is 2.0 mm.

[0042] In some preferred embodiments, the side elastic limiting block 30 is adhered to the side wall of the receiving groove 40 by an adhesive. The adhesive fills the microscopic gap between the side elastic limiting block 30 and the side wall of the receiving groove 40, eliminating the risk of loosening due to tolerances at the contact surface. The cured adhesive layer forms an additional fixing force, enhancing the connection strength between the side elastic limiting block 30 and the housing 10, and preventing the limiting block from falling off due to vibration during long-term use.

[0043] In some preferred embodiments, the side elastic limiting block 30 has an anti-slip pattern (not shown) on the side abutting the motherboard 20. The anti-slip pattern increases the roughness of the contact surface, thereby improving the static friction between the side elastic limiting block 30 and the motherboard 20. The grooved structure of the pattern "engages" with the motherboard surface, preventing slippage of the motherboard 20 under high-frequency micro-vibrations and ensuring the stability of the elastic support. The structural design of the anti-slip pattern avoids the periodic slippage that may occur with traditional smooth surface contact, ensuring that the side elastic limiting block 30 is always in a preset compressed state.

[0044] In some preferred embodiments, the number of latches is at least three. The arrangement of at least three latches forms a triangular support, which uses geometric stability to constrain the longitudinal degree of freedom of the motherboard, evenly distributes the weight of the motherboard and impact load, and avoids latch breakage or motherboard tilting caused by single-point overload.

[0045] In this embodiment, the number of latches is four. After the motherboard 20 is pressed down, the latches automatically lock into the slots 21. The latches are common fixing structures; therefore, this embodiment does not limit the specific structure of the latches.

[0046] In some preferred embodiments, the electronic lottery toy motherboard fixing device further includes an upper cover 60, which is detachably fitted onto the receiving groove 40 of the housing 10. For example, the upper cover 60 and the housing 10 can be detachably connected by snap-fit ​​or screws. After the upper cover 60 covers the housing 10, a closed space is formed inside to prevent dust from entering and affecting it.

[0047] In a specific embodiment, the motherboard 20 is equipped with a motion sensor. Understandably, the motherboard 20 integrates the necessary circuit board, control chip, and display screen. The motion sensor is directly fixed to the motherboard 20, close to the device's center of gravity, and connected to the control chip via the circuit board to reduce signal interference. The display screen is used for interaction.

[0048] The electronic lottery toy motherboard fixing device provided in this embodiment can provide a stable motherboard environment, ensure sensor detection accuracy, and realize the lottery function with high sensitivity motion recognition.

[0049] The motion sensor is a three-axis gyroscope used to detect changes in the angular velocity of the device and capture the rotational direction and amplitude of the shaking motion. Through programming and algorithm design, the shaking motion can be captured and identified to trigger the shaking mode. An anti-accidental-touch design is also added to avoid unintended triggering of the shaking mode; however, this invention does not limit the scope of the invention.

[0050] In a specific embodiment, the upper cover 60 has a transparent window, with the window of the transparent window facing the display screen.

[0051] See further Figure 5 This embodiment proposes an electronic lottery toy, including the electronic lottery toy motherboard fixing device described above.

[0052] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0053] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] 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 one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0058] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0059] The above description describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A motherboard fixing device for an electronic lottery toy, characterized in that, The device includes a housing, a motherboard, and side elastic limiting blocks. The housing has a receiving groove with a buckle at the bottom. The motherboard has a slot corresponding to the buckle. The motherboard has the side elastic limiting blocks symmetrically arranged on at least one opposite side. The side elastic limiting blocks have a "U"-shaped cross-section, with one side of the central recessed portion abutting against the motherboard and the other side conforming to the side wall of the receiving groove. The central recessed portion of the side elastic limiting blocks is compressed and clamped between the motherboard and the side wall of the receiving groove. Through the elasticity of the side elastic limiting blocks and the cooperation of the buckle and slot, the motherboard is securely fixed in the receiving groove.

2. The electronic lottery toy motherboard fixing device according to claim 1, characterized in that, The side elastic limiting block is a core-shell structure in which the outer shell layer covers the inner core layer. The inner core layer is made of highly elastic silicone, and the outer shell layer is made of thermoplastic polyurethane.

3. The electronic lottery toy motherboard fixing device according to claim 2, characterized in that, The thickness of the side elastic limiting block is 1.5 to 4.0 mm.

4. The electronic lottery toy motherboard fixing device according to claim 1, characterized in that, The number of the side elastic limiting blocks is at least four.

5. The electronic lottery toy motherboard fixing device according to claim 1, characterized in that, The side elastic limiting block is attached to the side wall of the receiving groove with adhesive.

6. The electronic lottery toy motherboard fixing device according to claim 1, characterized in that, The side elastic limiting block that abuts against the main board has an anti-slip pattern.

7. The electronic lottery toy motherboard fixing device according to claim 1, characterized in that, The number of the buckles is at least three.

8. The electronic lottery toy motherboard fixing device according to claim 1, characterized in that, The electronic lottery toy motherboard fixing device also includes an upper cover, which is detachably fitted onto the receiving groove of the housing.

9. The electronic lottery toy motherboard fixing device according to claim 1, characterized in that, The motherboard is equipped with motion sensors.

10. An electronic lottery toy, characterized in that, Includes the electronic lottery toy motherboard fixing device as described in any one of claims 1-9.

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