Fire alarm control unit loop module with multiple capacities
Patent Information
- Application Number
- CN202522466377.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-20
AI Technical Summary
[0003]然而现有火灾报警控制器回路模块不便于工作人员进行安装和维护，以及不适配不同场景下的探测器接入需求，为了解决上述问题，提出了具备多容量的火灾报警控制器回路模块
[0022]该具备多容量的火灾报警控制器回路模块，通过第一松不脱螺钉实现防护壳与面板的快速拆装，搭配把手设计便于模块整体取放，通过第二松不脱螺钉便于将模块整体与机箱快速拆装，同时借助D-SUB连接器与DIN连接器分别完成探测器互联及机箱背板对接，分工明确且连接可靠，大幅提升模块安装与维护效率；通过板卡集成的多路信号调理电路可自适应调整探测器数量对应的信号与供电参数，适配不同场景下的探测器接入需求，且DIN连接器与3U标准机箱背板兼容，无需定制安装结构，降低设备适配成本。
Smart Images
Figure CN224922307U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fire alarm controller technology, and in particular to fire alarm controller loop modules with multiple capacities. Background Technology
[0002] The fire alarm controller is the core device of an automatic fire alarm system. Its main functions are to receive, analyze, and process signals from peripheral devices such as fire detectors and manual fire alarm buttons, determine whether a fire has occurred, and issue corresponding alarm and control commands. It also records relevant information, serving as a crucial central hub for ensuring building fire safety. In an automatic fire alarm system, the loop module is a key relay station between the fire alarm controller and peripheral devices. It is responsible for transmitting the controller's commands to the terminal devices and simultaneously collecting and transmitting the status signals from the terminal devices back to the controller. It is a core component for achieving bidirectional signal transmission and expanding the control range, essentially acting as the controller's nerve endings.
[0003] However, existing fire alarm controller loop modules are inconvenient for staff to install and maintain, and are not suitable for the access requirements of detectors in different scenarios. In order to solve the above problems, a fire alarm controller loop module with multiple capacities has been proposed. Utility Model Content
[0004] The purpose of this application is to provide a fire alarm controller loop module with multiple capacities, which has the advantages of being easy for staff to install and maintain, and being adaptable to the detector access requirements in different scenarios.
[0005] The multi-capacity fire alarm controller loop module provided in this application adopts the following technical solution: The multi-capacity fire alarm controller loop module includes a protective housing. A panel is provided on the surface of the protective housing, and a first captive screw is provided on the surface of the panel. The protective housing and the panel are fixedly connected by the first captive screw. A D-SUB connector is provided on the surface of the panel, and the D-SUB connector is interconnected with a front-end detector via a shielded cable. A circuit board is provided inside the protective housing. Multiple signal conditioning circuits are integrated on the surface of the circuit board. A DIN connector is soldered to the rear of the circuit board, and the DIN connector is pluggably connected to the backplane inside a 3U standard chassis. A handle is fixedly connected to the surface of the panel, and a fixing block is fixedly connected to the surface of the protective housing. A second captive screw is provided on the surface of the fixing block.
[0006] By adopting the above technical solution, the protective shell and panel can be quickly disassembled and assembled using the first captive screw, and the handle design facilitates the overall loading and unloading of the module. The second captive screw facilitates the quick disassembly and assembly of the module and chassis. At the same time, the D-SUB connector and DIN connector are used to complete the interconnection of detectors and the docking of chassis backplane, respectively. The division of labor is clear and the connection is reliable, which greatly improves the efficiency of module installation and maintenance. The multi-channel signal conditioning circuit integrated on the board can adaptively adjust the signal and power supply parameters corresponding to the number of detectors, adapting to the detector access requirements in different scenarios. Moreover, the DIN connector is compatible with the 3U standard chassis backplane, eliminating the need for customized installation structure and reducing equipment adaptation costs.
[0007] Preferably, the panel is made of aluminum alloy plate material, and the board is made of FR4 epoxy glass cloth substrate material.
[0008] By adopting the above technical solutions, the panel made of aluminum alloy plate has high strength and lightweight characteristics, which can effectively protect the internal components from external impact; the FR4 epoxy glass cloth substrate has excellent insulation performance, high temperature resistance and stable structure, which can ensure the long-term stable operation of multi-channel signal conditioning circuits and extend the service life of the module.
[0009] Preferably, there are two sets of handles, which are symmetrically arranged on the surface of the panel. The handles are made of ABS engineering plastic material and their surfaces are treated with anti-slip texture.
[0010] By adopting the above technical solution, the two sets of symmetrically arranged ABS engineering plastic handles not only meet the force balance requirements during module assembly and disassembly, but also increase hand friction through anti-slip texture treatment to avoid slipping during assembly and disassembly, further improving the convenience of module retrieval and placement, and are especially suitable for one-handed operation scenarios.
[0011] Preferably, the multi-channel signal conditioning circuit can adaptively adjust the signal gain and power supply distribution according to the number of detectors.
[0012] By adopting the above technical solution, the adaptive adjustment function of the multi-channel signal conditioning circuit can match the signal gain and power supply distribution requirements of different numbers of detectors without manual intervention, avoiding the need to replace the board due to changes in the number of detectors, and reducing equipment replacement costs and debugging time.
[0013] Preferably, the surface of the protective shell is embedded with heat sinks, and there are two sets of heat sinks, which are symmetrically arranged on both sides of the protective shell.
[0014] By adopting the above technical solution, the heat sinks symmetrically arranged on both sides of the protective shell can quickly conduct the heat generated by the internal circuit board when the module is working, avoid heat accumulation that may lead to circuit performance degradation or component damage, and ensure the stable operation of the module under long-term high-load conditions.
[0015] Preferably, there are two sets of the first captive screws, which are symmetrically arranged on the surface of the panel, and there are four fixing blocks and four second captive screws, which are symmetrically arranged on the surface of the protective shell.
[0016] By adopting the above technical solution, the two sets of symmetrical first captive screws ensure that the panel and the protective shell are tightly connected and the force is evenly distributed, preventing the panel from loosening. The four symmetrically arranged fixing blocks and the second captive screws can enhance the connection stability between the protective shell and the external chassis, prevent the module from shifting in a vibration environment, and improve the installation reliability.
[0017] Preferably, the upper surface of the protective shell is covered with a sealing cap, which is made of transparent material and has a threaded hole on its surface so that a fixing screw can be threaded inside.
[0018] By adopting the above technical solution, the sealing cover made of transparent material can not only intuitively observe the working status of the circuit board inside the protective shell, but also prevent external dust and moisture from entering the protective shell, avoiding impurities from affecting the circuit connection and the performance of the circuit board. At the same time, the sealing cover can be quickly disassembled and assembled with the help of fixing screws, which facilitates internal maintenance.
[0019] Preferably, there are four fixing screws arranged in a rectangular shape on the surface of the sealing cover, and the protective shell and the sealing cover are fixedly connected by the fixing screws.
[0020] By adopting the above technical solution, the four rectangularly arranged fixing screws ensure that the connection points between the sealing cover and the protective shell are evenly distributed, ensuring that the force on the area covered by the sealing cover is balanced, improving the fit and sealing performance between the sealing cover and the protective shell, further enhancing the dustproof and waterproof protection effect of the internal components, and the rectangular arrangement facilitates quick positioning of the screw positions, improving the efficiency of sealing cover disassembly and assembly.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] This multi-capacity fire alarm controller loop module features a first captive screw for quick assembly and disassembly of the protective housing and panel, along with a handle for easy module placement and removal. A second captive screw facilitates quick assembly and disassembly of the module to the chassis. D-SUB and DIN connectors are used for detector interconnection and chassis backplane docking, respectively, ensuring clear division of labor and reliable connections, significantly improving module installation and maintenance efficiency. The integrated multi-channel signal conditioning circuitry on the board adaptively adjusts the signal and power supply parameters corresponding to the number of detectors, adapting to detector access requirements in different scenarios. Furthermore, the DIN connector is compatible with 3U standard chassis backplanes, eliminating the need for customized installation structures and reducing equipment adaptation costs. Attached Figure Description
[0023] Figure 1This is a three-dimensional structural diagram of the present application.
[0024] Figure 2 This is a three-dimensional structural diagram of the present application viewed from below;
[0025] Figure 3 This is a schematic diagram of the protective shell in this application;
[0026] Figure 4 This is a schematic diagram of the board structure in this application;
[0027] Figure 5 This is a schematic diagram of the panel structure in this application.
[0028] In the picture:
[0029] 1. Protective shell; 2. Panel; 3. Board; 4. First captive screw; 5. D-SUB connector; 6. Handle; 7. DIN connector; 8. Multi-channel signal conditioning circuit; 9. Fixing block; 10. Second captive screw; 11. Sealing cover; 12. Fixing screw; 13. Heat sink. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.
[0031] Example 1: A fire alarm controller loop module with multiple capacities, refer to... Figure 1 , Figure 4 and Figure 5The system includes a protective housing 1, with a panel 2 on its surface. A first captive screw 4 is mounted on the surface of panel 2. The protective housing 1 and panel 2 are fixedly connected by the first captive screw 4, allowing for quick assembly and disassembly. A handle 6 facilitates the overall loading and unloading of the module. A second captive screw 10 facilitates quick assembly and disassembly of the module to the chassis. D-SUB connectors 5 and DIN connectors 7 are used for detector interconnection and chassis backplane docking, respectively. This clear division of labor and reliable connection significantly improves module installation and maintenance efficiency. The panel 2 also features a D-SUB connector 5, which connects to a shielded cable. Interconnected with the front-end detector, the protective housing 1 has a board 3 inside. The surface of the board 3 integrates a multi-channel signal conditioning circuit 8. The multi-channel signal conditioning circuit 8 integrated in the board 3 can adaptively adjust the signal and power supply parameters corresponding to the number of detectors, adapting to the detector access requirements in different scenarios. The DIN connector 7 is compatible with the 3U standard chassis backplane, eliminating the need for customized installation structures and reducing equipment adaptation costs. The tail of the board 3 is soldered with a DIN connector 7, which is plugged into and plugged into the backplane inside the 3U standard chassis. The surface of the panel 2 is fixedly connected to a handle 6, and the surface of the protective housing 1 is fixedly connected to a fixing block 9. The surface of the fixing block 9 is provided with a second non-removable screw 10.
[0032] Please see Figure 1 , Figure 4 and Figure 5 Panel 2 is made of aluminum alloy plate, and board 3 is made of FR4 epoxy glass cloth substrate. Panel 2, made of aluminum alloy plate, has high strength and lightweight characteristics, which can effectively protect internal components from external impact. Board 3, made of FR4 epoxy glass cloth substrate, has excellent insulation performance, high temperature resistance and stable structure, which can ensure the long-term stable operation of multi-channel signal conditioning circuit 8 and extend the service life of the module. There are two sets of handles 6, which are symmetrically arranged on the surface of panel 2. Handles 6 are made of ABS engineering plastic material and their surface is treated with anti-slip texture. The two sets of symmetrically arranged ABS engineering plastic handles 6 not only meet the force balance requirements during module disassembly and assembly, but also increase the friction of the hand through anti-slip texture treatment to avoid slipping during disassembly and assembly, further improving the convenience of module picking and placing, especially suitable for one-handed operation scenarios. Multi-channel signal conditioning circuit 8 can adaptively adjust signal gain and power distribution according to the number of detectors. The adaptive adjustment function of multi-channel signal conditioning circuit 8 can match the signal gain and power distribution requirements of different numbers of detectors without manual intervention, avoiding the need to replace board 3 due to changes in the number of detectors, reducing equipment replacement costs and debugging time.
[0033] Please see Figure 1 , Figure 2 and Figure 3The protective shell 1 has heat sinks 13 embedded on its surface. There are two sets of heat sinks 13, which are symmetrically arranged on both sides of the protective shell 1. The heat sinks 13 symmetrically arranged on both sides of the protective shell 1 can quickly conduct heat generated by the internal circuit board 3 when the module is working, avoid heat accumulation that may lead to circuit performance degradation or component damage, and ensure the stable operation of the module under long-term high load conditions. There are two sets of first captive screws 4, which are symmetrically arranged on the surface of the panel 2. There are four fixing blocks 9 and four second captive screws 10, which are symmetrically arranged on the surface of the protective shell 1. The two sets of symmetrical first captive screws 4 ensure that the panel 2 and the protective shell 1 are tightly connected and the force is evenly distributed, preventing the panel 2 from loosening. The four symmetrically arranged fixing blocks 9 and second captive screws 10 can enhance the connection stability between the protective shell 1 and the external chassis, prevent the module from shifting in a vibration environment, and improve the installation reliability.
[0034] Please see Figure 1 , Figure 2 and Figure 3 A sealing cover 11 is attached to the upper surface of the protective shell 1. The sealing cover 11 is made of transparent material and has threaded holes on its surface to allow for the internal threaded connection of fixing screws 12. The transparent material of the sealing cover 11 allows for direct observation of the working status of the circuit board 3 inside the protective shell 1, while also preventing external dust and moisture from entering the protective shell 1, thus avoiding impurities from affecting the circuit connection and the performance of the circuit board 3. At the same time, the fixing screws 12 enable quick disassembly and assembly of the sealing cover 11, facilitating internal maintenance. There are four fixing screws 12, arranged in a rectangular pattern on the surface of the sealing cover 11. The protective shell 1 and the sealing cover 11 are fixedly connected by the fixing screws 12. The four rectangularly arranged fixing screws 12 ensure that the connection points between the sealing cover 11 and the protective shell 1 are evenly distributed, ensuring that the force on the area covered by the sealing cover 11 is balanced, improving the fit and sealing of the sealing cover 11 and the protective shell 1, further enhancing the dustproof and waterproof protection of the internal components. The rectangular arrangement also facilitates quick positioning of the screws, improving the efficiency of disassembly and assembly of the sealing cover 11.
[0035] The implementation principle of this application embodiment is as follows: First, the board 3 is fixed inside the protective shell 1, ensuring that the DIN connector 7 at the tail of the board 3 extends out of the corresponding interface of the protective shell 1. The D-SUB connector 5 is installed at a preset position on the panel 2 and soldered to the signal interface of the board 3 via a wire. Then, two sets of first captive screws 4 are used to fix the panel 2 to the surface of the protective shell 1, covering the opening of the protective shell 1. Next, the transparent sealing cover 11 is overlapped on the upper surface of the protective shell 1. The four threaded holes of the sealing cover 11 are aligned with the corresponding threaded holes of the protective shell 1, and the fixing screws 12 are screwed in to complete the fixing of the sealing cover 11. Then, the module is fixed in the preset installation position of the 3U standard chassis using the four second captive screws 10 on the surface of the fixing block 9, ensuring that the DIN connector 7 at the tail of the board 3 is accurately aligned with the backplane inside the chassis. The module is pushed to allow the DIN connector 7 to complete the plug-in / plug-out connection with the chassis backplane, thus realizing the connection between the board 3 and the backplane. The power supply path and IO information transmission path are connected; the front-end detector is connected to the D-SUB connector 5 on the panel 2 through a shielded cable to complete the signal interconnection between the detector and the module. The chassis back panel provides DC power to the board 3 through the DIN connector 7. After the board 3 is powered on, the multi-channel signal conditioning circuit 8 automatically detects the number of detectors connected to the D-SUB connector 5 and adaptively adjusts the signal gain parameters and the power supply distribution of each detector. The board 3 collects the working current, voltage and alarm signal of the detector in real time. After internal processing, the signal is transmitted to the chassis back panel through the DIN connector 7 and then fed back to the fire alarm controller. The controller displays the working status of the detector in real time. During the operation of the module, the heat sinks 13 on both sides of the protective shell 1 continuously conduct the heat generated by the board 3 to prevent the board 3 from overheating. The transparent sealing cover 11 isolates external impurities and facilitates the observation of the internal operating status of the board 3 by the staff.
Claims
1. A fire alarm controller loop module with multiple capacities, including a protective housing (1), characterized in that: The protective shell (1) is provided with a panel (2), and the surface of the panel (2) is provided with a first non-detachable screw (4). The protective shell (1) and the panel (2) are fixedly connected by the first non-detachable screw (4). The surface of the panel (2) is provided with a D-SUB connector (5), and the D-SUB connector (5) is interconnected with the front-end detector through a shielded cable. The protective shell (1) has a board (3) inside. The surface of the board (3) is integrated with multiple signal conditioning circuits (8). The tail of the board (3) is soldered with a DIN connector (7). The DIN connector (7) is plugged into the back panel inside the 3U standard chassis. The surface of the panel (2) is fixedly connected with a handle (6). The surface of the protective shell (1) is fixedly connected with a fixing block (9). The surface of the fixing block (9) is provided with a second non-detachable screw (10).
2. The fire alarm controller loop module with multiple capacities according to claim 1, characterized in that: The panel (2) is made of aluminum alloy plate material, and the board (3) is made of FR4 epoxy glass cloth substrate material.
3. The fire alarm controller loop module with multiple capacities according to claim 1, characterized in that: There are two sets of handles (6), which are symmetrically arranged on the surface of the panel (2). The handles (6) are made of ABS engineering plastic material and their surfaces are treated with anti-slip texture.
4. The fire alarm controller loop module with multiple capacities according to claim 1, characterized in that: The multi-channel signal conditioning circuit (8) can adaptively adjust the signal gain and power supply distribution according to the number of detectors.
5. The fire alarm controller loop module with multiple capacities according to claim 1, characterized in that: The protective shell (1) is provided with heat sinks (13) embedded on its surface. There are two sets of heat sinks (13), which are symmetrically arranged on both sides of the protective shell (1).
6. The fire alarm controller loop module with multiple capacities according to claim 1, characterized in that: There are two sets of the first non-detachable screws (4), which are symmetrically arranged on the surface of the panel (2). There are four of each of the fixing block (9) and the second non-detachable screws (10), which are symmetrically arranged on the surface of the protective shell (1).
7. The fire alarm controller loop module with multiple capacities according to claim 1, characterized in that: The upper surface of the protective shell (1) is covered with a sealing cap (11), which is made of transparent material. The surface of the sealing cap (11) is provided with a threaded hole so that a fixing screw (12) is threaded inside.
8. The fire alarm controller loop module with multiple capacities according to claim 7, characterized in that: There are four fixing screws (12), which are arranged in a rectangular shape on the surface of the sealing cover (11). The protective shell (1) and the sealing cover (11) are fixedly connected by the fixing screws (12).