A fire alarm controller and its circuit card and motherboard installation structure

Abstract

The present invention relates to the field of fire alarm equipment, and specifically to a fire alarm controller and a mounting structure of its circuit card and motherboard, comprising a plug-in box assembly and a circuit card assembly, wherein a motherboard is mounted at the bottom of the plug-in box assembly, and a plurality of circuit card assemblies are inserted into the plug-in box assembly and connected to the motherboard; a fastener that cooperates with the buckle or pin hole of the circuit card assembly is provided on the plug-in box assembly; a guide piece that limits and constrains the circuit card assembly is provided in the plug-in box assembly. The circuit card assembly comprises a bracket, wherein the bracket is provided with a slot for inserting the circuit card; a circuit card hook is provided on the end face of the slot, and the circuit card hook is connected to the circuit card buckle; the two ends of the bracket are folded and extended to form a folding hook, and the folding hook cooperates with the plug-in box assembly buckle. The beneficial effects of the present invention are: reducing the parts required to fix the circuit card, adopting buckles to connect and fix the circuit card assembly and the plug-in box assembly, saving installation time, and reducing installation procedures.

Description

Technical Field

[0001] The invention relates to the field of fire alarm equipment, in particular to a fire alarm controller and an installation structure of a circuit card and a motherboard thereof. Background Art

[0002] The fire alarm controller circuit board installation structure generally includes a plug-in box, a plug-in box bottom plate, a motherboard, a circuit board, a guide bracket, a fixed bracket, etc. The fire alarm controller is part of the fire detection system, and each circuit card is responsible for connecting each bus circuit to the control system.

[0003] The circuit card installation type of the fire alarm controller product consists of a circuit card assembly and a plug-in box assembly, wherein the circuit card assembly consists of a circuit card and a circuit card metal mounting bracket. The circuit card and the circuit card metal bracket are usually connected by screws, such as Figure 5 The plug-in box assembly consists of a metal plug-in box, a metal plug-in box bottom plate, a motherboard and a guide bracket. First, the motherboard must be installed on the metal plug-in box bottom plate with screws, and then the metal plug-in box bottom plate and the motherboard must be installed on the bottom of the metal plug-in box with screws; the guide bracket is made of plastic material and is installed inside the metal plug-in box by snap-fitting to form a plug-in box assembly. Figure 6 The coordination between the loop card assembly and the plug-in box assembly is achieved through the guide bracket and screw connection, such as Figure 7 .

[0004] In summary, in the prior art, the fire alarm controller product circuit card installation type requires a large number of parts, a long installation time, many loading and unloading procedures, and complex disassembly. Summary of the invention

[0005] The object of the present invention is to provide a fire alarm controller and a mounting structure of its circuit card and motherboard to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mounting structure for a circuit card and a motherboard of a fire alarm controller comprises a plug-in box assembly and a circuit card assembly. A motherboard is mounted at the bottom of the plug-in box assembly. A plurality of circuit card assemblies are inserted into the plug-in box assembly and connected to the motherboard. A fastener is provided on the plug-in box assembly to cooperate with the buckle or pin hole of the circuit card assembly.

[0008] As a further solution of the present invention: a guide piece for limiting and restraining the circuit card assembly is provided in the plug-in box assembly.

[0009] As a further solution of the present invention: the loop card assembly includes a bracket, and the bracket is provided with a card slot for inserting the loop card.

[0010] As a further solution of the present invention: a loop card hook is provided on the end surface of the card slot, and the loop card hook is connected to the loop card buckle.

[0011] As a further solution of the present invention: both ends of the bracket are folded and extended to form folding hooks, and the folding hooks are snap-fitted with the plug-in box assembly.

[0012] As a further solution of the present invention: the plug-in box assembly includes a plug-in box, the motherboard is installed at the bottom of the plug-in box, a plurality of the loop card assemblies are inserted into the plug-in box, and the motherboard is connected to the loop card assemblies.

[0013] As a further solution of the present invention: the fastener includes hooks, and the hooks are arranged on both sides of the outer edge of the plug-in box.

[0014] As a further solution of the present invention: the material of the plug-in box assembly and the loop card assembly is resin.

[0015] Another technical solution provided by the present invention is a fire alarm controller, comprising a main controller and a mounting structure of a circuit card and a motherboard of any fire alarm controller as described above, wherein the main controller is arranged on the motherboard and is respectively connected to the circuit card components.

[0016] Compared with the prior art, the beneficial effects of the present invention are: reducing the parts required for fixing the loop card, using buckles instead of threads to connect the fixed loop card assembly and the plug-in box assembly, saving installation time, simplifying and reducing the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the assembly of the circuit card and the mounting structure of the motherboard of the fire alarm controller in the embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the structure of the loop card assembly in the embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the exploded view of the loop card assembly in the embodiment of the present invention.

[0020] Figure 4 Schematic diagram of the structure of the plug-in box assembly in an embodiment of the present invention.

[0021] Figure 5 It is a structural schematic diagram of a loop card assembly in the prior art.

[0022] Figure 6 The present invention is a schematic diagram of the assembly of the circuit card and the mounting structure of the motherboard of the fire alarm controller in the prior art.

[0023] Figure 7The present invention is a schematic diagram of the structure of the installation structure of the loop card and the motherboard of the fire alarm controller in the prior art.

[0024] In the attached figure: 1. loop card, 2. bracket, 3. limit slot, 4. folding hook, 5. bayonet, 6. loop card hook, 7. screw, 8. plastic plug-in box, 9. motherboard, 10. loop card assembly, 11. plug-in box assembly, 12. guide slot, 13. guide rib, 14. hook, 15. metal plug-in box bottom plate, 16. metal plug-in box, 17. guide bracket. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present embodiment disclosure as detailed in the appended claims.

[0026] See also Figure 1 , 4 In an embodiment of the present invention, a mounting structure of a circuit card and a motherboard of a fire alarm controller includes a plug-in box assembly and a circuit card assembly. A motherboard is mounted at the bottom of the plug-in box assembly. A plurality of circuit card assemblies are inserted into the plug-in box assembly and connected to the motherboard. A fastener that cooperates with a buckle or a pin hole of the circuit card assembly is provided on the plug-in box assembly.

[0027] Specifically, the loop card assembly 10 includes a bracket 2. Specifically, the bracket is made of resin and is made into a plastic bracket 2. The bracket 2 is provided with a card slot for inserting the loop card, and the number of the brackets is the same as the number of the loop cards. First, the loop cards 1 are respectively inserted into the brackets 2 and fixed. Then, the loop card 1 and the bracket 2 are inserted into the plug-in box assembly. One end of the loop card 1 extending out of the bracket abuts against the motherboard installed at the bottom of the plug-in box assembly. The loop card 1 and the bracket 2 are inserted into the plug-in box assembly and fixed in turn to ensure that the loop card 1 is connected to the motherboard normally. The parts required to fix the loop card are reduced, and buckles are used instead of threads to fix the loop card assembly and the plug-in box assembly, saving installation time.

[0028] See also Figure 1 In another embodiment of the present invention, a guide member for limiting and restraining the circuit card assembly is provided in the plug-in box assembly 11.

[0029] Specifically, the guide member is a guide groove 12, and symmetrical guide grooves 12 are spaced apart on both sides of the inner surface of the plug-in box assembly, which are used to limit and constrain the loop card 1, play a guiding role when inserting the loop card into the plug-in box assembly, and limit the lateral displacement of the loop card to ensure that the loop card 1 is normally connected to the motherboard.

[0030] Preferably, the bracket is provided with a guide rib 13 matching the guide groove 12, and the width of the guide rib 13 is the same as the width of the guide groove 12; the guide groove 12 and the guide rib 13 cooperate to fix the loop card.

[0031] See also Figure 3 In one embodiment of the present invention, a loop card hook 6 is provided on the end surface of the card slot, and the loop card hook 6 is buckled and connected with the loop card 1.

[0032] Specifically, the width of both ends of the card slot is reduced to form a limit slot 3, and the width of the limit slot 3 is similar to the thickness of the loop card. A loop card hook 6 is provided on the side of the limit slot 3 away from the card slot. After the loop card is inserted into the card slot, the loop card hook 6 is embedded in the bayonet 5 provided on the loop card to fix the loop card in the card slot.

[0033] See also Figure 2-3 In one embodiment of the present invention, both ends of the bracket 2 are folded and extended to form a folding hook 4, and the folding hook 4 is snap-fitted with the plug-in box assembly.

[0034] Specifically, after the bracket 2 with the loop card inserted is inserted into the plug-in box assembly, the loop card is fully abutted against the motherboard 9, and then the folding hook 4 is buckled on the plug-in box assembly to fix the bracket 2 with the loop card inserted.

[0035] See also Figure 1 In one embodiment of the present invention, the plug-in box assembly 11 includes a plug-in box, the motherboard is installed at the bottom of the plug-in box, a plurality of the loop card assemblies are inserted into the plug-in box, and the motherboard is connected to the loop card assemblies.

[0036] Specifically, the plug box is made of resin and is made into a plastic plug box 8. Symmetrical guide grooves 12 are spaced apart on both sides of the inner surface of the plastic plug box 8 to limit and constrain the loop card 1. The bracket 2 with the loop card inserted is inserted into the guide groove 12 in turn and fixed by the buckle of the folding hook 4. Figure 4 As shown, the motherboard 9 is installed at the bottom of the plastic plug-in box 8 by screws 7; compared with the metal plug-in box 16, a metal plug-in box bottom plate 15 for installing the motherboard needs to be set at the bottom thereof, and a guide bracket 17 is set in the metal plug-in box 16 to limit the guide of the circuit card assembly; the plastic plug-in box 8 does not need to be provided with a guide bracket, which reduces the use of parts, and the circuit card assembly is fixed with a snap-on connection instead of a threaded connection, which reduces the installation time and installation difficulty.

[0037] See also Figure 1 In one embodiment of the present invention, the fastener includes hooks 14, and the hooks 14 are arranged on both sides of the outer edge of the plug-in box.

[0038] The hook 14 is engaged with the folding hook 4 to fix the bracket 2 with the loop card inserted in the plug-in box.

[0039] The plug-in box assembly and the circuit card assembly are made of resin, specifically, the plug-in box is made of resin, and the bracket 2 is made of resin. Made of resin material, the circuit card is prevented from being damaged during installation, and it is convenient to open the guide groove 12 in the plug-in box, and it is also convenient to make the hook 14 and the folding hook 4 matched with the hook 14. The installation of the circuit card is limited by the guide groove 12, which reduces the use of guide brackets, that is, the use of parts.

[0040] See also Figure 1 In another embodiment provided by the present invention, a fire alarm controller includes a main controller and a mounting structure of a loop card and a motherboard of any fire alarm controller as described above, wherein the main controller is arranged on the motherboard and is respectively connected to the loop card components.

[0041] The installation structure of the loop card and the motherboard of the fire alarm controller includes a plug-in box assembly and a loop card assembly. A motherboard is installed at the bottom of the plug-in box assembly, and a number of the loop card assemblies are inserted into the plug-in box assembly and connected to the motherboard; the plug-in box assembly is provided with a fastener that snaps with the loop card assembly; the main controller is connected to the field equipment units corresponding to the loop cards through the loop cards, and the field equipment units realize fire detection, alarm, display and other actions.

[0042] The working principle of the present invention is as follows: first, the loop card 1 is respectively inserted into the bracket 2 and fixed, then, the loop card 1 and the bracket 2 are inserted into the plug-in box assembly, and one end of the loop card 1 extending out of the bracket abuts against the motherboard installed at the bottom of the plug-in box assembly; the loop card 1 and the bracket 2 are inserted into the plug-in box assembly and fixed in turn to ensure that the loop card 1 is connected to the motherboard normally.

[0043] It should be noted that the main controller used in the present invention is an application of the prior art. Professional technicians in this field can achieve the desired functions according to the relevant description, or achieve the desired technical characteristics through similar technologies, which will not be described in detail here.

[0044] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the disclosure in the specification and examples. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0045] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A mounting structure of a circuit card and a motherboard of a fire alarm controller, comprising a plug-in box assembly and a circuit card assembly, wherein a motherboard is mounted at the bottom of the plug-in box assembly, characterized in that: Several of the loop card assemblies are inserted into the plug-in box assembly and connected to the motherboard; the plug-in box assembly is provided with a fastener that cooperates with the buckle or pin hole of the loop card assembly; The loop card assembly comprises a bracket, the bracket is provided with a card slot for inserting the loop card; the end surface of the card slot is provided with a loop card hook, and the loop card hook is connected with the loop card buckle; The width of both ends of the card slot is reduced to form a limiting slot, the width of the limiting slot is close to the thickness of the loop card, and a loop card hook is provided on the side of the limiting slot away from the card slot. After the loop card is inserted into the card slot, the loop card hook is embedded in the bayonet provided on the loop card to fix the loop card in the card slot; The two ends of the bracket are folded and extended to form folding hooks, and the folding hooks are snap-fitted with the plug-in box assembly; the plug-in box assembly includes a plug-in box, the motherboard is installed at the bottom of the plug-in box, and a plurality of the loop card assemblies are inserted into the plug-in box, and the motherboard is connected to the loop card assembly; the fastener includes hooks, and the hooks are arranged on both sides of the outer edge of the plug-in box; A guide piece for limiting and restraining the circuit card assembly is provided in the plug-in box assembly. The guide piece is a guide groove. Symmetrical guide grooves are provided at intervals on both sides of the inner surface of the plug-in box assembly to limit and restrain the circuit card. It plays a guiding role when the circuit card is inserted into the plug-in box assembly and limits the lateral displacement of the circuit card to ensure that the circuit card is connected to the motherboard normally; the bracket is provided with a guide rib matching the guide groove, and the width of the guide rib is the same as the width of the guide groove; the guide groove and the guide rib cooperate to fix the circuit card.

2. The installation structure of the circuit card and the motherboard of the fire alarm controller according to claim 1 is characterized in that: The plug-in box assembly and the loop card assembly are made of resin.

3. A fire alarm controller, characterized in that: The invention comprises a main controller and a circuit card and a motherboard installation structure of a fire alarm controller as claimed in any one of claims 1 to 2, wherein the main controller is arranged on the motherboard and is respectively connected to the circuit card components.

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