CN213022024U

CN213022024U - Overload alarm device for switch connecting wire

Info

Publication number: CN213022024U
Application number: CN202021869593.2U
Authority: CN
Inventors: 李磊
Original assignee: Wuxi Maikewei Technology Co ltd
Current assignee: Wuxi Maikewei Technology Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-04-20
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a switch connecting wire overload alarm device, connect the guide vane including overload protection ware group and line terminal, the both ends of overload protection ware group all are connected with thermistor, and thermistor's one end is connected with circular telegram end, another thermistor's tip and line terminal connection guide vane are connected, be connected with the temperature sensing conducting wire between the guide vane is connected to the line terminal, and the end connection of temperature sensing conducting wire has temperature controller and siren, the other end of guide vane and the tip of circular telegram end are linked together are connected to the line terminal, the line terminal is connected the guide vane and is T type structure. The utility model discloses a two parts overload protection, partly are current overload protection, and another part passes through the overload protection of structural connection formation wiring end, and both accessible overload protection's reaction is judged for the problem of circuit line end of returning, improves the investigation precision.

Description

Overload alarm device for switch connecting wire

Technical Field

The utility model relates to an overload protection equipment technical field especially relates to a switch connecting wire overload alarm device.

Background

Overload protection refers to an overload protection device which is additionally arranged to prevent the protector from being damaged due to overheating caused by overload of a main power line. Such as: a fuse or fuse; the main reasons for overload are improper selection of the section of the wire, and the actual load exceeds the safe current of the wire; the phenomenon of 'small horse-drawn large vehicle' is also existed, that is, too much high-power equipment is connected in the line, and the load capacity of the distribution line is exceeded.

The existing overload protection is usually power supply overload protection and thermal overload protection, but many lines are overloaded due to the fact that connecting ends are unstable in connection and caused by non-standard connection, the line overload cannot be checked frequently, and the existing overload protection cannot achieve a good solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an overload alarm device for a switch connecting wire.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a switch connecting wire overload alarm device, connects the guide vane including overload protection ware group and line terminal, the both ends of overload protection ware group all are connected with thermistor, and thermistor's one end is connected with the circular telegram end, another thermistor's tip and line terminal connection guide vane are connected, be connected with the temperature sensing conducting wire between the guide vane is connected to the line terminal, and the end connection of temperature sensing conducting wire has temperature controller and siren, the other end of guide vane and the tip of circular telegram end are linked together are connected to the line terminal, the guide vane is T type structure is connected to the line terminal, and the both ends of guide vane are connected to the line terminal are connected with the wiring stake perpendicularly, the guide vane middle part is the coincide state is connected to the line terminal, and the both sides middle part of guide vane is connected to the line terminal all opens connect through hole.

Further, the overload protector group is formed by connecting a thermal relay and a current overload protector in series.

Furthermore, the wiring pile comprises a pile body and a press-fit screw, and the outer wall of the bottom end of the press-fit screw is fixedly connected to the inner wall of one side of the pile body through threads.

Further, still include upper connecting piece and lower connecting piece, upper connecting piece and lower connecting piece all are L type structure, and are parallel to each other between upper connecting piece and the lower connecting piece.

Furthermore, an electric armature is arranged between the inner walls of the opposite sides of the upper connecting sheet and the lower connecting sheet, the outer walls of the opposite sides of the upper connecting sheet and the lower connecting sheet are fixedly connected with a temperature control switch, and the electric armature is connected with the temperature control switch.

Furthermore, the end part of the temperature control switch is connected with the end part of the temperature sensing conducting wire.

The utility model has the advantages that:

1. the overload alarm device for the switch connecting line is divided into two parts, one part is current overload protection, the other part forms overload protection of the wiring terminal through structural connection, and the two parts can judge the problem of the line return end through the reaction of the overload protection, so that the inspection precision is improved;

2. the current overload protection in the overload alarm device for the switch connecting line protects a circuit through the current overload protector, the overload protector samples signals through the current transformer, each phase of load current is converted into voltage signals in proportion to the load current, and an internal torque limiter is utilized to generate separation, so that driving machinery and loads are effectively protected;

3. the terminal end overload protection in the switch connecting wire overload alarm device utilizes the terminal end to connect the guide sheet pressing connection end, detects the heat of the connection end by utilizing the conducting wire, and improves the safety of the terminal end due to the fact that the temperature is abnormal, the temperature controller starts the alarm and the short circuit power-off protection circuit simultaneously.

Drawings

Fig. 1 is a schematic view of a connection structure of an overload alarm device 1 for a switch connecting wire according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a line end connection guide of an overload alarm device 1 for a switch connection line according to an embodiment of the present invention;

fig. 3 is the utility model provides an overload protection circuit diagram of switch connecting wire overload alarm device embodiment 1.

Fig. 4 is the utility model provides a wire end connection guide sheet structure sketch map of switch connecting wire overload alarm device embodiment 2.

In the figure: 1. the wire end is connected with the guide sheet; 2. an alarm; 3. a temperature controller; 4. a power-on end; 5. an overload protector group; 6. a thermistor; 7. a wiring pile; 8. connecting the copper sheets; 9. an upper connecting sheet; 10. a temperature control switch; 11. an electric armature; 12. and a lower connecting sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, an overload alarm device for a switch connecting wire comprises an overload protector group 5 and a wire end connecting guide sheet 1, wherein both ends of the overload protector group 5 are connected with thermistors 6, one end of each thermistor 6 is connected with a power-on end 4, the end of the other thermistor 6 is connected with the wire end connecting guide sheet 1, a temperature sensing conducting wire is connected between the wire end connecting guide sheets 1, the end of the temperature sensing conducting wire is connected with a temperature controller 3 and an alarm 2, the other end of the wire end connecting guide sheet 1 is communicated with the end of the power-on end 4, the wire end connecting guide sheet 1 is of a T-shaped structure, both ends of the wire end connecting guide sheet 1 are vertically connected with wiring piles 7, the middle part of the wire end connecting guide sheet 1 is in an overlapped state, connecting through holes are formed in the middle parts of both sides of the wire end connecting guide sheet 1, connecting copper sheets 8 are clamped on the inner walls of the connecting through holes, the wiring pile 7 comprises a pile body and a press-fit screw, and the outer wall of the bottom end of the press-fit screw is fixedly connected to the inner wall of one side of the pile body through threads.

The working principle of the embodiment is as follows: in the overload alarm device for the switch connecting line, the current overload protection is an electrifying end 4, a small-size T1, T2 and T3 are load power supplies, only NO is the circuit to be normally opened, NC is normally closed, a control line is connected to two NCs, the circuit is normally opened because the NC is closed, a thermal relay overload protection is started according to the set current reaching the number A in an overload protector, normally opened and normally closed contacts are started, the NC circuit is originally opened and is disconnected at present, the control line is disconnected, a contactor of a main power supply is controlled to lose the power supply to stop working, the load cannot be electrified to form open circuit, the thermal overload protection is characterized in that a line end connecting guide sheet 1 is arranged at the connecting position of an electric wire, the temperature of the connecting position is detected, the temperature is overhigh, a temperature controller 3 is used for short-circuit power supply interface, an alarm 2 is started to realize overload alarm at the line end connecting position, one part is current overload protection, and the other part forms overload protection of the wiring terminal through structural connection, and the two parts can judge the problem of the return line end of the line through the reaction of the overload protection, so that the troubleshooting precision is improved.

Example 2

Referring to fig. 4, the present embodiment is mainly different from embodiment 1 in that, the present embodiment further includes an upper connection sheet 9 and a lower connection sheet 12, the upper connection sheet 9 and the lower connection sheet 12 are both L-shaped structures, and the upper connection sheet 9 and the lower connection sheet 12 are parallel to each other, an armature 11 is disposed between inner walls of opposite sides of the upper connection sheet 9 and the lower connection sheet 12, outer walls of opposite sides of the upper connection sheet 9 and the lower connection sheet 12 are both fixedly connected with a temperature controlled switch 10, the armature 11 is connected with the temperature controlled switch 10, and an end of the temperature controlled switch 10 is connected with an end of a temperature sensing conduction wire.

The working principle of the embodiment is as follows: based on the working principle of the embodiment 1, the temperature control structure replaces the electric armature 11 which is arranged above and below the temperature control switch 10, so that the opening and closing between the upper connecting sheet 9 and the lower connecting sheet 12 are realized, and the functions of the temperature control switch and overload detection are formed.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An overload alarm device for a switch connecting wire comprises an overload protector group (5) and a wire end connecting guide sheet (1), and is characterized in that both ends of the overload protector group (5) are connected with thermistors (6), one ends of the thermistors (6) are connected with a power-on end (4), the end of the thermistors (6) is connected with the wire end connecting guide sheet (1), a temperature sensing conducting wire is connected between the wire end connecting guide sheets (1), the end of the temperature sensing conducting wire is connected with a temperature controller (3) and an alarm (2), the other end of the wire end connecting guide sheet (1) is communicated with the end of the power-on end (4), the wire end connecting guide sheet (1) is of a T-shaped structure, both ends of the wire end connecting guide sheet (1) are vertically connected with wiring piles (7), and the middle part of the wire end connecting guide sheet (1) is in an overlapped state, and the middle parts of the two sides of the wire end connecting guide sheet (1) are provided with connecting through holes, and the inner walls of the connecting through holes are clamped with connecting copper sheets (8).

2. A switch connecting line overload warning device according to claim 1, characterised in that the overload protection group (5) is formed by a thermal relay and a current overload protector which are connected in series.

3. The overload alarm device for the switch connecting wire as claimed in claim 1, wherein the connecting post (7) comprises a post body and a press screw, and the outer wall of the bottom end of the press screw is fixedly connected to the inner wall of one side of the post body through threads.

4. The overload alarm device for the switch connecting wire according to claim 1, further comprising an upper connecting piece (9) and a lower connecting piece (12), wherein the upper connecting piece (9) and the lower connecting piece (12) are both L-shaped structures, and the upper connecting piece (9) and the lower connecting piece (12) are parallel to each other.

5. The switch connecting line overload warning device according to claim 4, wherein an electric armature (11) is arranged between the inner walls of the opposite sides of the upper connecting sheet (9) and the lower connecting sheet (12), the outer walls of the opposite sides of the upper connecting sheet (9) and the lower connecting sheet (12) are fixedly connected with a temperature control switch (10), and the electric armature (11) is connected with the temperature control switch (10).

6. The switch connecting wire overload warning device according to claim 5, wherein the end of the temperature controlled switch (10) is connected with the end of the temperature sensing conductive wire.