Novel motor wiring terminal

Abstract

The utility model discloses a novel motor wiring terminal, which structurally comprises a motor, a wiring board and a three-phase power supply, a motor shell is arranged outside the motor and is used for being connected with the ground, a threaded connecting rod is fixedly arranged on the wiring board, the novel motor wiring terminal further comprises a test connecting column and a light emitting diode, the test connecting columns comprise an S1 screw binding post, an S2 screw binding post and an S3 screw binding post, the S1 screw binding post, the S2 screw binding post and the S3 screw binding post are electrically connected with the three threaded connecting rods respectively, and resistors are connected in series in circuits where the S1 screw binding post, the S2 screw binding post and the S3 screw binding post are located. The S1 screw binding post, the S2 screw binding post and the S3 screw binding post are connected through a second connecting piece to form a second star sealing point, one end of the light-emitting diode is electrically connected with the second star sealing point, and the other end of the light-emitting diode is connected with the motor shell. The utility model belongs to the field of motor wiring, and particularly relates to a novel motor wiring terminal.

Description

Technical Field

[0001] The utility model belongs to the field of motor wiring, and specifically refers to a new type of motor wiring terminal. Background Art

[0002] The existing motor wiring terminals are mainly designed to facilitate wire connection, and usually consist of copper connecting pieces, special plastics, phenolic resins, nuts and screws. According to the types and characteristics of motors, they are divided into 5-pole wiring terminals, 6-pole wiring terminals, 9-pole wiring terminals, etc., among which the 6-pole wiring terminal is the most common and general.

[0003] The existing motor wiring terminals use screw pressing to press the wire and the motor winding through screw supports, and can only be used for single connection, unable to prevent problems such as motor phase loss and incoming line phase loss, and the function is relatively single. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that the motor wiring terminal can only be used for single connection and the function is relatively single.

[0005] To solve the above problems, the technical solution adopted by the utility model is as follows: The new type of motor wiring terminal proposed by the utility model includes a motor, a wiring board and a three-phase power supply. The outside of the motor is set as a motor housing, and the motor housing is used to connect to the ground. A threaded connecting rod is fixedly arranged on the wiring board, and also includes a test connection column and a light-emitting diode. The test connection column includes an S1 screw connection column, an S2 screw connection column and an S3 screw connection column. The S1 screw connection column, the S2 screw connection column and the S3 screw connection column are respectively electrically connected to three threaded connecting rods, and resistors are connected in series in the circuits where they are located. The S1 screw connection column, the S2 screw connection column and the S3 screw connection column are connected through a second connecting piece to form a second star point. One end of the light-emitting diode is electrically connected to the second star point, and the other end of the light-emitting diode is connected to the motor housing.

[0006] Further, a motor winding assembly is provided on the motor. The motor winding assembly is provided with a phase A wire, a phase B wire and a phase C wire. The phase A wire is provided with a head end U1 and a tail end U2. The phase B wire is provided with a head end V1 and a tail end V2. The phase C wire is provided with a head end W1 and a tail end W2.

[0007] Further, the head ends U1, V1 and W1 are respectively wound and connected to the threaded connecting rods provided on the wiring board one by one, and are connected through a first connecting piece to form a first star point.

[0008] Further, the tail ends U2, V2 and W2 are respectively wound and connected to the other threaded connecting rods provided on the wiring board one by one, and are connected to the three-phase power supply.

[0009] Further, the tail end U2 is connected to the screw terminal S1, the tail end V2 is connected to the screw terminal S2, and the tail end W2 is connected to the screw terminal S3.

[0010] Further, both the first connecting piece and the second connecting piece are made of copper thin sheet structures.

[0011] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0012] The new motor terminal proposed in this solution, by using the original materials and components, changing the original structure, adding 3 screw terminals (including the screw terminal S1, the screw terminal S2, and the screw terminal S3), resistors, and light-emitting diodes, changes its appearance and increases its functions. It changes the original wiring board that can only be used for connection into a function that can not only monitor the motor for phase loss but also monitor the incoming line for phase loss. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is Figure 1 the partial enlarged schematic diagram at A in

[0015] Among them, 1, motor; 101, motor housing; 2, wiring board; 3, screw terminal; 4, motor winding assembly; 41, phase A wire; 411, head end U1; 412, tail end U2; 42, phase B wire; 421, head end V1; 422, tail end V2; 43, phase C wire; 431, head end W1; 432, tail end W2; 5, first connecting piece; 6, test connecting post; 601, screw terminal S1; 602, screw terminal S2; 603, screw terminal S3; 7, second connecting piece; 8, resistor; 9, light-emitting diode.

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] As Figure 1 and Figure 2As shown in the figure, a new type of motor terminal proposed by the utility model includes a motor 1, a wiring board 2 and a three-phase power supply. The outside of the motor 1 is the motor housing 101, and the motor housing 101 is connected to the ground. There are two sets of three threaded connecting rods fixed on the wiring board 2, one above the other. Among them, the motor 1 is provided with a motor winding assembly 4. The motor winding assembly 4 is provided with a phase A wire 41, a phase B wire 42 and a phase C wire 43. The phase A wire 41 is provided with a head end U1-411 and a tail end U2-412, the phase B wire 42 is provided with a head end V1-421 and a tail end V2-422, and the phase C wire 43 is provided with a head end W1-431 and a tail end W2-432. The head ends U1-411, V1-421 and W1-431 are respectively wound and connected to the threaded connecting rods arranged on the wiring board 2 one by one, and are connected through a first connecting piece 5 to form a first star point. The tail ends U2-412, V2-422 and W2-432 are respectively wound and connected to the other threaded connecting rods arranged on the wiring board 2 one by one, and are connected to the three-phase power supply.

[0019] As Figure 1 shown, it further includes a test connection post 6 and a light-emitting diode 9. The test connection post 6 includes an S1 screw connection post 601, an S2 screw connection post 602 and an S3 screw connection post 603. The S1 screw connection post 601, the S2 screw connection post 602 and the S3 screw connection post 603 are respectively electrically connected to the three threaded connecting rods, and a resistor 8 is connected in series in the circuit where they are located. Among them, the tail end U2-412 is connected to the S1 screw connection post 601, the tail end V2-422 is connected to the S2 screw connection post 602, and the tail end W2-432 is connected to the S3 screw connection post 603. The S1 screw connection post 601, the S2 screw connection post 602 and the S3 screw connection post 603 are connected through a second connecting piece 7 to form a second star point. One end of the light-emitting diode 9 is electrically connected to the second star point, and the other end of the light-emitting diode 9 is connected to the motor housing 101, and the motor housing 101 is connected to the ground.

[0020] When a line is broken, when one of the three groups of the phase A wire 41, the phase B wire 42 and the phase C wire 43 is broken, the voltage of the broken phase will drop to zero, while the voltages of the other two phases remain unchanged. At this time, a neutral point shift will occur. At this time, the current of the broken phase is also zero, while the currents of the normal two phases will increase. Because the lack of phase operation will destroy the three-phase imbalance. When the incoming line is unbalanced, the second star point will also cause the current to increase according to the incoming line imbalance. When the current is too large, the second star point will directly form a loop with the ground through the DC light-emitting diode 9 for the excess current, thus lighting up. Through this improvement, the operator can more intuitively find the operating conditions of electrical equipment, greatly improve the production efficiency, and reduce the equipment accident rate.

[0021] The above description is made on the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the gist of the creation of the present utility model, they design without creative efforts structural modes and embodiments similar to the technical solution, all of which shall fall within the protection scope of the present utility model.

Claims

1. A new type of motor terminal, comprising a motor, a wiring board and a three-phase power supply. The outside of the motor is provided with a motor housing, and the motor housing is connected to the ground. Two groups of three threaded connecting rods are fixedly arranged on the wiring board, and it is characterized in that, It also includes a test connection post and a light-emitting diode. The test connection post includes an S1 screw terminal, an S2 screw terminal, and an S3 screw terminal. The S1 screw terminal, the S2 screw terminal, and the S3 screw terminal are respectively connected to the three lower threaded connecting rods one by one through wires, and resistors are electrically connected to the wires. The S1 screw terminal, the S2 screw terminal, and the S3 screw terminal are connected through a second connecting piece to form a second star point. One end of the light-emitting diode is electrically connected to the second star point, and the other end of the light-emitting diode is connected to the motor housing.

2. The novel motor terminal according to claim 1, wherein: The motor is provided with a motor winding assembly. The motor winding assembly has a total of three groups of A-phase wires, B-phase wires, and C-phase wires. The A-phase wire is divided into a head end U1 and a tail end U2. The B-phase wire is divided into a head end V1 and a tail end V2. The C-phase wire is divided into a head end W1 and a tail end W2.

3. A novel motor terminal according to claim 2, wherein: The head end U1, the head end V1, and the head end W1 are respectively wound and connected to the three upper threaded connecting rods on the wiring board one by one, and are connected through a first connecting piece to form a first star point.

4. The novel motor terminal according to claim 3, wherein: The tail end U2, the tail end V2, and the tail end W2 are respectively wound and connected to the three lower threaded connecting rods on the wiring board one by one, and are connected to a three-phase power supply.

5. A novel motor terminal according to claim 4, characterized in that: The tail end U2 is connected to the S1 screw terminal, the tail end V2 is connected to the S2 screw terminal, and the tail end W2 is connected to the S3 screw terminal.

6. A novel motor terminal according to claim 5, characterized in that: Both the first connecting piece and the second connecting piece adopt a copper sheet structure.

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