Modular assembly architecture for a video intercom doorbell
By using a modular assembly architecture with a detachable layered shell and separate functional modules, the problem of inconvenient disassembly and assembly and complex installation of existing video intercom doorbell assembly structures is solved, enabling convenient maintenance and efficient installation.
Patent Information
- Application Number
- CN202522589977.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-05
AI Technical Summary
The existing video intercom doorbells use an integrated design, which means that the whole unit needs to be replaced when a component is damaged, resulting in high maintenance costs. The installation process is also complicated, and the tangled internal wiring affects heat dissipation and service life.
It adopts a modular assembly architecture, including a detachable layered shell and separate functional modules, which are fixed by limiting frames and fastening screws. Combined with standardized interface design, it can realize independent replacement of modules and simplify installation.
It enables independent replacement of damaged individual modules, reducing maintenance costs, simplifying installation steps, improving assembly stability and wiring order, and reducing error rates.
Smart Images

Figure CN224947612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of intelligent security equipment technology, and more specifically, to a modular assembly architecture for a video intercom doorbell. Background Technology
[0002] Currently, in the field of smart security, video intercom doorbells are an important device for communication between homes and the outside world. Their ease of installation and maintenance directly impacts user experience and market application. As users' security needs increase, video intercom doorbells must be quick to install and easy to maintain to adapt to different apartment layouts and usage scenarios. However, existing video intercom doorbells mostly adopt an integrated design, meaning that their functional modules are directly soldered and integrated onto a main board. The core drawback of this design is: 1. Damaged components require complete replacement, leading to high repair costs. For example, if the camera module malfunctions, the entire doorbell housing needs to be disassembled and the mainboard assembly replaced, increasing both parts costs and extending the repair cycle. 2. The installation process requires adjustment of multiple connectors (such as clips, screws, ribbon cables, etc.), which is complicated and requires professional personnel, thus reducing installation efficiency. 3. The internal wiring lacks unified planning, and the cables are tangled and intertwined, which not only affects heat dissipation performance, causing the equipment to operate at excessively high temperatures, shortening its service life, but also increases the assembly error rate. Utility Model Content
[0003] Therefore, this utility model provides a modular assembly structure for video intercom doorbells to solve the technical problems of inconvenient disassembly and assembly and complex installation of existing video intercom doorbell assembly structures.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A modular assembly architecture for a video intercom doorbell, comprising: The detachable, layered housing forms limiting spaces corresponding to different functional modules; The modular functional module includes a motherboard module and a camera module, a sound module, a power module, and a button module that are detachably and electrically connected to the motherboard module. The motherboard module, the camera module, the sound module, the power module, and the button module are all positioned within the limiting space formed by the different functional modules in the detachable layered housing.
[0005] Based on the above technical solution, the present invention is further described as follows: As a further embodiment of this utility model, The detachable layered housing includes a front housing and a rear housing; The inner edge of the front housing is integrally formed with a limiting frame including a side plate and a bottom plate; The rear housing is configured as a plate structure, with its edge adapted to the shape and size of the inner edge of the limiting frame, and the rear housing can be separably fitted and embedded into the limiting frame.
[0006] As a further embodiment of this utility model, The inner edge of the limiting frame is provided with a guide slope.
[0007] As a further embodiment of this utility model, When the front housing is fitted into the rear housing, the rear housing and the front housing are connected by at least four sets of fastening screws. At least four sets of the fastening screws are evenly distributed at the stud positions at the four corners of the rear housing.
[0008] As a further embodiment of this utility model, The rear housing has a groove on its edge, and a waterproof sealing ring is embedded in the groove corresponding to the rear housing. The rear housing forms a sealed cavity after it abuts against the inner wall of the front housing based on the waterproof sealing ring.
[0009] As a further embodiment of this utility model, The motherboard module is fixedly mounted on the protruding position inside the rear housing by a snap-fit connection; The camera module includes a lens assembly and an image sensor chip; The lens assembly is aligned with the reserved hole in the front housing, and the photosensitive chip is detachably plugged into the motherboard module via a standardized FPC interface.
[0010] As a further embodiment of this utility model, The standardized FPC interface is equipped with a locking structure; After the photosensitive chip is inserted into the motherboard module, it is locked and positioned by the locking structure.
[0011] As a further embodiment of this utility model, The sound module can be detachably positioned and embedded in the reserved cavity of the front housing, and is electrically connected to the corresponding interface of the motherboard module via terminal wires through an integrated wire groove; The integrated cable tray is disposed on the front housing and / or the rear housing.
[0012] As a further embodiment of this utility model, The power module is positioned and installed in a rectangular mounting position on the rear housing, and the power module is detachably connected to the power interface of the motherboard module via wires through the integrated cable channel.
[0013] As a further embodiment of this utility model, The button module can be detachably positioned on the front housing, and a button port socket is provided at one end of the button module facing the motherboard module. The motherboard module is provided with a motherboard port socket at one end facing the button module. The button port socket and the motherboard port socket are connected by an adapter, and the button port socket and the motherboard port socket are positioned by elastic clips on both sides after being plugged in.
[0014] This utility model has the following beneficial effects: 1. This architecture, through its modular design, allows individual modules to be replaced independently when damaged, improving overall convenience and reducing maintenance costs; 2. This architecture, through pre-fixing of the limiting frame and further reinforcement with screws, effectively simplifies the installation steps while ensuring overall assembly stability.
[0015] 3. Standardized interface planning effectively improved the orderliness of wiring and reduced assembly error rate. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0017] Figure 1 This is a schematic diagram of the overall assembly structure of the modular assembly architecture for a video intercom doorbell provided in an embodiment of the present invention.
[0018] Figure 2 This is an exploded view of the overall modular assembly architecture for a video intercom doorbell provided in an embodiment of the present invention.
[0019] Figure 3 This is a cross-sectional assembly structure diagram of a modular assembly architecture for a video intercom doorbell provided in an embodiment of the present invention.
[0020] Figure 4 This is a cross-sectional exploded view of the modular assembly architecture for a video intercom doorbell provided in an embodiment of the present invention.
[0021] The attached diagram lists the components represented by each number as follows: 1. Front housing; 2. Rear housing; 3. Limiting frame; 4. Fastening screw; 5. Waterproof sealing ring; Motherboard module 6, camera module 7, sound module 8, power module 9, button module 10; Button port socket 11, motherboard port socket 12. Detailed Implementation
[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.
[0024] like Figures 1 to 3 As shown, this utility model embodiment provides a modular assembly architecture for a video intercom doorbell, including a front housing 1, a rear housing 2, a limiting frame 3, fastening screws 4, a waterproof sealing ring 5, a mainboard module 6, a camera module 7, a sound module 8, a power supply module 9, and a button module 10. This modular design allows for independent replacement of individual modules in case of damage, improving overall convenience and reducing maintenance costs. Furthermore, the pre-fixing with the limiting frame, combined with screw reinforcement, effectively simplifies the installation process and ensures overall assembly stability. In addition, standardized interface planning reduces assembly error rates and improves the overall wiring order and functional usability. Specific settings are as follows: Please refer to Figures 1 to 4 The front housing 1 can be injection molded from, but is not limited to, ABS engineering plastic. Its inner edge is integrally formed with a limiting frame 3 including a side plate and a bottom plate. The height of the side plate of the limiting frame 3 is set to 5-8mm, and 6mm is preferred in this embodiment. The rear housing 2 can also be a plate structure injection molded from, but is not limited to, ABS material. Its edge is adapted to the shape and size of the inner edge of the limiting frame 3 so that the rear housing 2 can fit into the inner position of the limiting frame 3.
[0025] As a preferred embodiment, the top edge of the inner edge of the limiting frame 3 is provided with a guide slope, which makes it easier for the rear housing 2 to be fitted into the inner side of the limiting frame 3, thereby improving the overall assembly and disassembly efficiency.
[0026] When the front housing 1 is fitted into the rear housing 2, the rear housing 2 and the front housing 1 are connected by at least 4 M3 fastening screws 4. The fastening screws 4 are evenly distributed at the stud positions at the four corners of the rear housing 2 to ensure that the overall force of the assembled housing is more uniform and stable.
[0027] As a preferred embodiment, the rear housing 2 has a groove on its edge, and a waterproof sealing ring 5 is embedded in the groove of the rear housing 2. The waterproof sealing ring 5 can be made of, but is not limited to, nitrile rubber or silicone. The rear housing 2 forms a sealed cavity after the waterproof sealing ring 5 abuts against the inner wall of the front housing 1, so as to achieve IP65 dustproof and waterproof rating, effectively resist high-pressure water jets and dust intrusion, and ensure overall protection.
[0028] More preferably, both the front housing 1 and the rear housing 2 are coated with a 0.05-0.1mm thick polytetrafluoroethylene anti-scratch coating to improve protective hardness and reduce scratch damage during use.
[0029] Please continue to refer to this. Figure 2 and Figure 4 The motherboard module 6 is fixedly mounted on the protruding position inside the rear housing 2 by a snap-fit. The motherboard module 6 is made of FR-4 material with a thickness of 1.2-1.5mm, preferably 1.4mm in this embodiment, and integrates a predetermined processor, memory and communication circuit. The camera module 7 includes a 1080P lens assembly and a CMOS image sensor. The lens assembly is aligned with the reserved hole position of the front housing 1. The CMOS image sensor is detachably connected to the motherboard module 6 through a 20-pin standardized FPC interface.
[0030] As another preferred embodiment, the standardized FPC interface is provided with a locking structure to lock together after the CMOS photosensitive chip and the motherboard module 6 are plugged in, so as to effectively reduce loosening and improve the stability of the architecture.
[0031] In one optional implementation, a 1-2mm thick sponge pad is provided between the camera module 7 and the front housing 1 to cushion and reduce shock, thereby effectively preventing lens shake.
[0032] The sound module 8 can be detachably positioned and embedded in the reserved cavity of the front housing 1, and is electrically connected to the corresponding interface of the motherboard module 6 via terminal wires through the integrated wire groove, so as to realize the independent module setting.
[0033] The power module 9 is mounted in a rectangular mounting position on the rear housing 2. The rectangular mounting position has positioning posts at the four corners. The power module 9 is connected to the rectangular mounting position by screwing M2.5 self-tapping screws onto the positioning posts. The power module 9 is detachably connected to the power interface of the motherboard module 6 via wires through an integrated cable tray. The power module 9 supports a wide voltage input of 12V-24V, which not only enables independent module functions but also effectively supports switching between different system models, improving application adaptability.
[0034] In one optional implementation, the integrated cable tray can be installed in the front housing 1 and / or the rear housing 2, with an overall size ranging from 3-4 mm in width and 2-3 mm in depth, to accommodate power cables and reduce exposed wiring.
[0035] Please continue to refer to this. Figure 2 and Figure 4 The button module 10 is detachably snapped onto the front housing 1, and a button port socket 11 is provided at the end of the button module 10 facing the motherboard module 6, and a motherboard port socket 12 is provided at the end of the motherboard module 6 facing the button module 10. The motherboard port socket 12 is a female connector with 8-12 pins (preferably 10 in this embodiment, including power, signal, and ground pins). The button port socket 11 is a male connector, which is adapted to be plugged into the motherboard port socket 12. After the button port socket 11 and the motherboard port socket 12 are plugged in, they are positioned by elastic snaps on both sides to ensure a more stable connection, while ensuring that the button module 10 and the motherboard module 6 are detachable independent modules.
[0036] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A modular assembly structure for a video intercom doorbell, characterized in that, include: The detachable, layered housing forms limiting spaces corresponding to different functional modules; The modular functional module includes a motherboard module and a camera module, a sound module, a power module, and a button module that are detachably and electrically connected to the motherboard module. The motherboard module, the camera module, the sound module, the power module, and the button module are all positioned within the limiting space formed by the different functional modules in the detachable layered housing.
2. The modular assembly structure for a video intercom doorbell according to claim 1, characterized in that, The detachable layered housing includes a front housing and a rear housing; The inner edge of the front housing is integrally formed with a limiting frame including a side plate and a bottom plate; The rear housing is configured as a plate structure, with its edge adapted to the shape and size of the inner edge of the limiting frame, and the rear housing can be separably fitted and embedded into the limiting frame.
3. The modular assembly structure for a video intercom doorbell according to claim 2, characterized in that, The inner edge of the limiting frame is provided with a guide slope.
4. The modular assembly structure for a video intercom doorbell according to claim 2, characterized in that, When the front housing is fitted into the rear housing, the rear housing and the front housing are connected by at least four sets of fastening screws. At least four sets of the fastening screws are evenly distributed at the stud positions at the four corners of the rear housing.
5. The modular assembly structure for a video intercom doorbell according to claim 2, characterized in that, The rear housing has a groove on its edge, and a waterproof sealing ring is embedded in the groove corresponding to the rear housing. The rear housing forms a sealed cavity after it abuts against the inner wall of the front housing based on the waterproof sealing ring.
6. The modular assembly structure for a video intercom doorbell according to claim 2, characterized in that, The motherboard module is fixedly mounted on the protruding position inside the rear housing by a snap-fit connection; The camera module includes a lens assembly and an image sensor chip; The lens assembly is aligned with the reserved hole in the front housing, and the photosensitive chip is detachably plugged into the motherboard module via a standardized FPC interface.
7. The modular assembly structure for a video intercom doorbell according to claim 6, characterized in that, The standardized FPC interface is equipped with a locking structure; After the photosensitive chip is inserted into the motherboard module, it is locked and positioned by the locking structure.
8. The modular assembly structure for a video intercom doorbell according to claim 2, characterized in that, The sound module can be detachably positioned and embedded in the reserved cavity of the front housing, and is electrically connected to the corresponding interface of the motherboard module via terminal wires through an integrated wire groove; The integrated cable tray is disposed on the front housing and / or the rear housing.
9. The modular assembly structure for a video intercom doorbell according to claim 8, characterized in that, The power module is positioned and installed in a rectangular mounting position on the rear housing, and the power module is detachably connected to the power interface of the motherboard module via wires through the integrated cable channel.
10. The modular assembly structure for a video intercom doorbell according to claim 2, characterized in that, The button module can be detachably positioned on the front housing, and a button port socket is provided at one end of the button module facing the motherboard module. The motherboard module is provided with a motherboard port socket at one end facing the button module. The button port socket and the motherboard port socket are connected by an adapter, and the button port socket and the motherboard port socket are positioned by elastic clips on both sides after being plugged in.
