Junction box with protection and alarm indication functions

Abstract

According to the junction box with the protection and alarm indication functions, after the junction box is powered on firstly, the junction box power indicator lamp 4 is turned on, when a signal exists on a signal channel, the corresponding signal indicator lamp 5 is turned on, if a lower-layer equipment junction wire port 3 connected with lower-layer equipment is short-circuited, the signal is automatically cut off by the self-recovery fuse, the signal indicator lamp 5 is turned off, and the junction box is turned off. If the power supply port is short-circuited, the red alarm indicating lamp 6 is turned on, and the self-recovery fuse cuts off the power supply of the port, so that the signals of other lower-layer equipment branch wire ports 3 are not influenced; through the above structure, the safety of the junction box is improved, an alarm function is added, a fault point can be quickly and accurately locked after a fault occurs on site, and the troubleshooting time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial field signal transmission, in particular to a junction box with protection and alarm indication functions. Background Art

[0002] There is a great demand for underlying junction boxes for industrial field signal transmission. Traditional types of junction boxes can only serve as an extension and cannot provide alarm and protection when underlying equipment fails.

[0003] Therefore, there is an urgent need for a junction box with protection and alarm indication functions that can help better protect other equipment on site and thus reduce losses. Utility Model Content

[0004] The purpose of the utility model is to provide a junction box with protection and alarm indication functions to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The utility model provides a junction box with protection and alarm indication functions, comprising a shell, one end of the shell is provided with an upper-layer equipment main wiring port, the upper surface of the shell is arrayed with a plurality of lower-layer equipment tapping ports, the lower-layer equipment tapping ports are connected to the upper-layer equipment main wiring port, and the upper-layer equipment main wiring port and the lower-layer equipment tapping ports are both connected to self-recovery fuses.

[0007] Preferably, the upper layer equipment main wiring port is connected to a 1.85A resettable fuse.

[0008] Preferably, the power supply port and the signal channel of the lower-layer device branch port are both connected to a 200mA self-recovery fuse.

[0009] Preferably, a fast recovery diode is reversely connected between the signal channel of the branch port of the lower-layer device and the common negative electrode.

[0010] Preferably, the housing is provided with a power indicator light, a signal indicator light and an alarm indicator light.

[0011] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0012] The utility model provides a junction box with protection and alarm indication functions, comprising a shell, one end of the shell is provided with an upper-layer equipment main wiring port, the upper surface of the shell is arrayed with a plurality of lower-layer equipment tapping ports, the lower-layer equipment tapping ports are connected to the upper-layer equipment main wiring port, and the upper-layer equipment main wiring port and the lower-layer equipment tapping ports are both connected to self-recovery fuses; the above structure improves the safety of the junction box, and at the same time increases the alarm function, so that after a fault occurs on site, the fault point can be quickly and accurately locked, saving troubleshooting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the structure of a junction box with protection and alarm indication functions provided by the utility model;

[0015] Figure 2 The utility model provides a circuit diagram of a junction box with protection and alarm indication functions. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] The purpose of the utility model is to provide a junction box with protection and alarm indication functions to solve the problems existing in the prior art.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Example 1:

[0020] This embodiment provides a junction box with protection and alarm indication functions, such as Figure 1 and 2As shown, it includes a shell 1, one end of the shell 1 is provided with an upper device main wiring port 2, and an array of 8 lower device tapping ports 3 are distributed on the upper surface of the shell 1. The lower device tapping ports 3 are connected to the upper device main wiring port 2, and both the upper device main wiring port 2 and the lower device tapping ports 3 are connected to self-recovery fuses.

[0021] As an implementation method, the main wiring port 2 of the upper layer device is connected to a 1.85A self-recovery fuse to provide current limiting protection for the eight branch wiring ports 3 of the lower layer device.

[0022] As an implementation method, the power supply port and signal channel of the lower-level device tap port 3 are both connected to a 200mA self-recovery fuse. When a short circuit occurs in the underlying device, the self-recovery fuse of the power supply port will promptly cut off the power supply to the lower-level device tap port 3 to ensure that the power supply to other lower-level device tap ports 3 is not affected, and the fault alarm light of the port lights up red; when individual signal channels are damaged or a high current fault occurs, the self-recovery fuse of the signal channel cuts off the signal transmission of the channel to ensure that other channels are not affected.

[0023] As an implementation method, a fast recovery diode is reversely connected between the signal channel of the tap port 3 of the lower device and the common negative electrode, which plays a protective role when the lower device is an inductive load.

[0024] As an embodiment, a power indicator light 4 , a signal indicator light 5 and an alarm indicator light 6 are provided on the housing 1 .

[0025] The utility model provides a junction box with protection and alarm indication functions. First, after power is turned on, the power indicator light 4 of the junction box lights up. When there is a signal on the signal channel, the corresponding signal indicator light 5 lights up. If a short circuit occurs in the tapping port 3 of the lower-layer device connected to the bottom-layer device, the self-recovery insurance will automatically cut off the signal, and the signal indicator light 5 will go out. If the power supply port is short-circuited, the red alarm indicator light 6 will light up and the self-recovery insurance will cut off the power supply to the port, ensuring that the signals of the tapping ports 3 of other lower-layer devices are not affected. The above structure improves the safety of the junction box and increases the alarm function, so that the fault point can be quickly and accurately locked after a fault occurs on site, saving troubleshooting time.

[0026] This utility model uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core concept of this utility model. At the same time, for those skilled in the art, according to the concept of this utility model, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A junction box with protection and alarm indication functions, characterized by: It includes a shell, one end of which is provided with an upper-layer equipment main wiring port, and an upper surface of the shell is arrayed with multiple lower-layer equipment tapping ports, the lower-layer equipment tapping ports are connected to the upper-layer equipment main wiring port, and the upper-layer equipment main wiring port and the lower-layer equipment tapping ports are both connected to self-recovery fuses.

2. The junction box with protection and alarm indication functions according to claim 1, characterized in that: The upper equipment main wiring port is connected to a 1.85A self-recovery fuse.

3. The junction box with protection and alarm indication functions according to claim 1, characterized in that: The power supply port and signal channel of the lower layer equipment branch port are both connected to a 200mA self-recovery fuse.

4. The junction box with protection and alarm indication functions according to claim 3 is characterized in that: A fast recovery diode is reversely connected between the signal channel of the lower layer device tapping port and the common negative electrode.

5. The junction box with protection and alarm indication functions according to claim 1, characterized in that: The housing is provided with a power indicator light, a signal indicator light and an alarm indicator light.

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