Electrical fire monitor

Abstract

The utility model provides an electrical fire monitor, comprising a housing formed by an upper housing and a lower housing which are matched with each other, a monitoring electrical assembly is arranged in the housing through a positioning assembly, the bottom of the housing is provided with a guide rail groove, one side of the guide rail groove is detachably provided with a group of buckles, and the upper housing and the lower housing are mutually matched. And one of the buckles is covered above the upgrading opening of the lower shell. The beneficial effects of the utility model are that the utility model realizes the stability of the assembly of the electrical components in the housing, and at the same time, the upgrading port arranged on the lower housing is combined with the buckle to realize the invisibility of the upgrading port, which is convenient for the subsequent upgrading of software and has strong practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of intelligent control, and particularly relates to an electrical fire monitor. Background Art

[0002] The main cause of electrical fires is electrical short circuits, including phase-to-phase short circuits and single-phase ground short circuits. For the safety of people and property, electrical fire monitors are usually installed in places with complex circuits such as factories, large warehouses, offices, commercial buildings, hotels, residences, and entertainment venues where the probability of electrical fires is relatively high. The monitor generally detects and monitors dangerous parameters such as residual current and temperature in the electrical circuit, emits an audible and visual alarm signal according to the set alarm value, and forms an electrical fire monitoring system with other electrical fire monitoring devices through a communication network.

[0003] With the development of the modernization process of industrial society, the market demand for electricity is increasing. At present, the shell structures of electrical fire monitors on the market are mostly of sizes 6P and above. To meet the requirements of different occasions, the terminals in the monitor are usually installed first and then wired, and each single terminal needs to be wired individually, which is rather cumbersome for installation and maintenance and results in a poor user experience. It is found in practical applications that the existing monitors adopt a single-structured shell, which makes it impossible to well ensure the stability of internal components in the shell during the assembly of the internal components of the monitor. When the internal software of the monitor needs to be upgraded and maintained in a timely manner, it can only be disassembled and assembled to complete the upgrade, and the process is rather inconvenient. Summary of the Utility Model

[0004] The utility model provides an electrical fire monitor, which is convenient to disassemble and assemble, can better stably assemble the electrical components in the monitor, and is provided with a hidden upgrade port for later maintenance.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] An electrical fire monitor includes a shell composed of a mutually matching upper shell and a lower shell. A monitoring electrical component is installed in the shell through a positioning component. A guide rail groove is opened at the bottom of the shell, and a group of buckles are detachably arranged on one side of the guide rail groove, and one of the buckles covers above the upgrade opening of the lower shell.

[0007] Preferably, the upper shell and the lower shell are snap-connected, and connection screws are arranged at the ends of the upper shell and the lower shell.

[0008] Preferably, the positioning component includes two groups of positioning posts vertically arranged inside the lower housing. The positioning posts extend upward along the inner wall of the lower housing and protrude from the top of the lower housing. Two groups of positioning clamping posts are arranged on the inner wall of the upper housing. The positioning posts and the positioning clamping posts respectively correspond to the opening positions on the monitoring electrical component.

[0009] Preferably, the monitoring electrical component includes a first PCB board placed inside the lower housing and a second PCB board placed above the first PCB board. Openings are provided on both sides of the first PCB board and the second PCB board. The positioning posts match the openings. A third PCB board is also provided on the second PCB board. The bottom of the third PCB board abuts against the top of the positioning posts. An integrated wiring terminal is also arranged between the first PCB board and the second PCB board. The opening of the integrated wiring terminal is on one side of the housing.

[0010] Preferably, a fourth PCB board is connected above the third PCB board through PIN pins. Bayonet openings matching the positioning clamping posts inside the upper housing are provided on the sides of the third PCB board and the fourth PCB board.

[0011] Preferably, a guide rail groove is provided at the bottom of the lower housing. A fixed clamping block is arranged on one side of the guide rail groove. A group of buckles are arranged on the other side of the guide rail groove. The distal end of the buckle extends inside the guide rail groove and is arranged opposite to the fixed clamping block. The monitor is slidably connected to the installation guide rail through the guide rail groove inside the lower housing.

[0012] Preferably, a buckle groove is provided on one side of the guide rail groove. The buckle is detachably placed in the buckle groove.

[0013] Preferably, a gap is provided between the bottom of the distal end of the buckle and the bottom of the guide rail groove. A gap is also provided between the bottom of the fixed clamping block and the bottom of the guide rail groove.

[0014] Preferably, the cross-section of the housing is in a "convex" shape.

[0015] The beneficial effects of the present utility model are as follows: The present utility model realizes the stability of the assembly of the electrical components inside the housing. At the same time, the upgraded opening provided on the lower housing combined with the buckle realizes the invisibility of the upgraded opening, which is convenient for subsequent software upgrade and has strong practicability. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 : Schematic diagram of the three-dimensional structure of the present utility model.

[0018] Figure 2 : Schematic diagram of the three-dimensional structure of another perspective of the present utility model.

[0019] Figure 3 : Schematic diagram of the exploded structure of the present utility model.

[0020] Figure 4 : Schematic diagram of the structure at the bottom of the present utility model. Detailed implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the attached Figures 1 - 4 figures and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] An electrical fire monitor includes a housing composed of a mutually matching upper housing 1 and a lower housing 2. A monitoring electrical component is installed in the housing through a positioning component. The upper housing 1 and the lower housing 2 are connected by snap-fitting and fastened by screws at the ends. To facilitate holding and assembly, the cross-section of the housing is in a "convex" shape. The user can easily assemble the upper and lower housings by holding the upper housing. Corresponding openings are provided on the side of the housing for the components in the monitoring electrical component to be exposed.

[0023] In order to maintain the stability of the monitored electrical components within the housing, the positioning component includes two groups of positioning posts 25 vertically arranged within the lower housing 2. The positioning posts 25 extend upward from the inner wall of the lower housing 2 towards the upper housing 1 and protrude above the top of the lower housing 25. Two groups of positioning latch posts 11 are provided on the inner wall of the upper housing 1. The positioning posts 25 and the positioning latch posts 11 respectively correspond to the opening positions on the monitored electrical components. The positioning posts 25 and the positioning latch posts 11 can further act as reinforcing ribs for the corresponding housing. The monitored electrical components include a first PCB board 6 placed within the lower housing 2 and a second PCB board placed above the first PCB board 6. Openings 61 are provided on both sides of the first PCB board 6 and the second PCB board. The shape of the positioning posts 25 matches the openings 61. A third PCB board 8 is further provided on the second PCB board. The bottom of the third PCB board 8 abuts against the top of the positioning posts 25. The fourth PCB board 7 is connected above the third PCB board 8 through PIN pins. The side portions of the third PCB board 8 and the fourth PCB board 7 are provided with bayonet openings 71 that match the positioning latch posts 11 within the upper housing 1. That is to say, when the third PCB board and the fourth PCB board are assembled within the housing, they are placed within the upper housing 1. At the same time, a boss 12 is provided on the positioning latch posts 11, and the position of the PCB board can be further stabilized through this boss 12.

[0024] An integrated wiring terminal 9 is further provided between the first PCB board 6 and the second PCB board. The opening of the integrated wiring terminal 9 is placed on one side of the outer shell. Through the integrated wiring terminal 9, direct plugging and unplugging of external devices can be achieved without the need to twist individual wires. A power terminal 4 is provided on the other side of the first PCB board. The power terminal 4 is connected to an external power supply to supply power to the monitor.

[0025] Generally, the monitor will be installed on a rail. To facilitate quick connection to the rail, a rail groove 21 is provided at the bottom of the outer shell. It is slid on the rail by being clamped in the rail groove 21. A group of buckles 3 are detachably provided on one side of the rail groove 21. One of the buckles 3 covers above the upgrade opening 23 of the lower housing. The port within the upgrade opening 23 is electrically connected to the electrical components.

[0026] Specifically, a fixed clamping block 22 is provided on one side of the rail groove 21, and a group of buckles 3 are provided on the other side of the rail groove 21. The distal end 31 of the buckle 3 extends inside the rail groove 21 and is arranged opposite to the fixed clamping block 22. A gap is provided between the bottom of the distal end 31 of the buckle 3 and the bottom of the rail groove, and a gap is provided between the bottom of the fixed clamping block 22 and the bottom of the rail groove. That is, by using the combination of the fixed clamping block 22 and the distal end of the buckle along with the rail groove, it can be prevented from falling off the rail. The buckle 3 is detachably placed within the buckle groove 24 on one side of the rail groove.

[0027] In this embodiment, the buckle 3 includes a strip-shaped main body 33 and wings 32 which are connected to both sides of the strip-shaped main body 33 with a gap. The outer sides of the far ends of the wings 32 are arranged in an inclined plane and are mutually matched with the buckle groove 24. The buckle 3 is inserted and removed in the buckle groove 24. When software failures occur in the monitor and need to be repaired and upgraded, there is no need to disassemble and assemble the housing to connect the electrical components. Only the buckle 3 needs to be pulled out, and the corresponding upgrade can be completed through the exposed upgrade port, which greatly saves the time for repair and upgrade and has strong practicability.

[0028] The present utility model also includes some components, such as a screen, buttons, etc. These are all common components of a conventional monitor and do not fall within the protection focus of the present utility model, so they will not be elaborated here.

[0029] Finally, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] Moreover, the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. Electrical fire monitor, characterized in that: The invention comprises an outer shell composed of an upper shell and a lower shell that match each other, wherein a monitoring electrical component is installed in the outer shell through a positioning component, a guide rail groove is opened at the bottom of the outer shell, and a group of buckles are detachably arranged on one side of the guide rail groove, wherein one of the buckles covers the upgrade opening above the lower shell.

2. The electrical fire monitor according to claim 1, characterized in that: The lower shell is snap-fitted to the upper shell, and connecting screws are arranged at the ends of the upper shell and the lower shell.

3. The electrical fire monitor according to claim 2, characterized in that: The positioning assembly includes two groups of positioning columns vertically arranged in the lower shell, and the positioning columns extend along the inner wall of the lower shell toward the upper shell and protrude from the top of the lower shell. The inner wall of the upper shell is provided with two groups of positioning card columns, and the positioning columns and the positioning card columns respectively correspond to the opening positions on the monitoring electrical components.

4. The electrical fire monitor according to claim 3, characterized in that: The monitoring electrical component includes a first PCB board placed in the lower shell and a second PCB board placed above the first PCB board. Openings are provided on both sides of the first PCB board and the second PCB board. The positioning column matches the openings. A third PCB board is also provided on the second PCB board. The bottom of the third PCB board abuts against the top of the positioning column. An integrated terminal is also provided between the first PCB board and the second PCB board. The opening of the integrated terminal is provided on one side of the shell.

5. The electrical fire monitor according to claim 4, characterized in that: The upper part of the third PCB board is connected with a fourth PCB board through PIN pins, and the sides of the third PCB board and the fourth PCB board are provided with bayonet holes which match with the positioning clamping columns in the upper shell.

6. The electrical fire monitor according to claim 5, characterized in that: A guide rail groove is provided at the bottom of the lower shell, a fixed block is provided on one side of the guide rail groove, and a group of clips are provided on the other side of the guide rail groove. The distal ends of the clips extend inside the guide rail groove and are arranged opposite to the fixed block. The monitor is slidably connected to the mounting guide rail through the guide rail groove in the lower shell.

7. The electrical fire monitor according to claim 6, characterized in that: A buckle groove is provided on one side of the guide rail groove, and the buckle is detachably placed in the buckle groove.

8. The electrical fire monitor according to claim 7, characterized in that: A gap is provided between the distal bottom of the buckle and the bottom of the guide rail groove, and a gap is provided between the bottom of the fixed block and the bottom of the guide rail groove.

9. The electrical fire monitor according to claim 1, characterized in that: The cross section of the shell is "convex" shaped.

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