Double-voltage generator winding and wiring method

Abstract

The invention discloses a double-voltage generator winding and a wiring method, the winding is a quadrupole double-voltage generator winding and consists of six groups of first coils, six groups of second coils, six groups of third coils and six groups of fourth coils; according to the invention, one set of winding and the lead wire capable of respectively leading out two kinds of voltage are adopted, the two kinds of voltage of the live wire are connected to the corresponding wiring copper plate, and the N wire is connected to the same wiring copper plate, so that compared with the traditional stator adopting two sets of windings, the stator adopting one set of winding is high in utilization rate and less in material; the voltage of the generator can be controlled by using one set of winding and only one automatic voltage regulator, and the control is simple.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a dual-voltage generator winding and a wiring method. Background Art

[0002] Dual voltage generators can meet the needs of equipment with different voltage levels. There are two main types of dual voltage generators currently used on the market. One is achieved by changing the generator winding connection (that is, through star-delta conversion), which is more troublesome to use, and when the generator is connected in a delta connection, it can only be connected in a three-phase three-wire system. The ratio of the two voltages is 1.732 times, which cannot meet the voltages of 660V and 400V, and cannot meet the requirements of a three-phase four-wire system. The other is that the motor has two sets of stator windings, and two automatic voltage regulators are used to achieve voltage regulation. When one of the automatic voltage regulators is working, the other automatic voltage regulator needs to disconnect the excitation. The coil has more than one set of windings, and it is difficult to embed the wire. One set of windings is embedded in one set of windings. The two sets of windings need to be separated by insulating paper, which will make it difficult to shape the coil ends, and the slot utilization rate of the motor stator punching is low and the insulating material is wasted. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a dual-voltage generator winding and a wiring method, which aims to solve the problems mentioned in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a dual-voltage generator winding, which is a four-pole dual-voltage generator winding, consists of a first group of coils, a second group of coils, a third group of coils and a fourth group of coils, and the first group of coils, the second group of coils, the third group of coils and the fourth group of coils are each provided with 6 groups.

[0005] Furthermore, the number of stator slots of the dual-voltage generator winding is 84.

[0006] Furthermore, the first group of coils has 2, 3, 2 turns, is an open coil, and has a span of 15.

[0007] Furthermore, the number of turns of the second group of coils is 3, 2, 3, 2, and they are open coils with a span of 15.

[0008] Furthermore, the third group of coils has 2, 3, 2 turns, is a closed coil, and has a span of 15.

[0009] Furthermore, the fourth group of coils has a number of turns of 3, 2, 3, 2, is a closed coil, and has a span of 15.

[0010] A dual-voltage generator wiring method comprises the following steps:

[0011] The first coil group, the second coil group, the third coil group and the fourth coil group are formed by respectively setting a preset number of turns; the first coil group and the second coil group are formed as open coils, and the third coil group and the fourth coil group are formed as closed coils;

[0012] The first group of coils, the second group of coils, the third group of coils and the fourth group of coils are embedded to form the dual voltage generator winding; specifically, when embedding the wires, the first group of coils, the second group of coils, the third group of coils and the fourth group of coils are embedded in turn, and the wires are embedded in a cycle, for a total of six cycles.

[0013] Furthermore, the number of turns of the first group of coils is 2, 3, 2; the number of turns of the second group of coils is 3, 2, 3, 2; the number of turns of the third group of coils is 2, 3, 2; and the number of turns of the fourth group of coils is 3, 2, 3, 2.

[0014] Furthermore, the spans of the first group of coils, the second group of coils, the third group of coils and the fourth group of coils are all 15.

[0015] Compared with the existing technology, the present invention has the following beneficial effects:

[0016] (1) The present invention uses a set of windings to lead out two voltage leads respectively. The two voltages of the live wires are connected to corresponding copper wiring plates, and the N wire is connected to the same copper wiring plate. Compared with the traditional method of using two sets of windings, the present invention uses a set of windings, which has a high stator slot utilization rate and requires less material.

[0017] (2) The present invention can control the generator voltage by using only one automatic voltage regulator through a set of windings, and the control is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the winding structure of the present invention.

[0019] Figure 2 It is the winding expansion diagram of the present invention.

[0020] Figure 1 1, the first set of coils; 2, the second set of coils; 3, the third set of coils; 4, the fourth set of coils; Figure 2 Indicates the wiring and connection of each coil. DETAILED DESCRIPTION

[0021] like Figure 1 As shown, the present invention provides a technical solution: a dual-voltage generator winding, which is a four-pole dual-voltage generator winding, consisting of a first group of coils 1, a second group of coils 2, a third group of coils 3 and a fourth group of coils 4, wherein the first group of coils 1, the second group of coils 2, the third group of coils 3 and the fourth group of coils 4 are each provided with 6 groups;

[0022] The dual-voltage generator winding has 84 stator slots, the voltages are 400V and 660V, and the four-way star connection has a common star point for the two voltages of 400V and 660V.

[0023] The first group of coils 1 has a number of turns of 2, 3, 2, is an open coil, and has a span of 15.

[0024] The number of turns of the second coil group 2 is 3, 2, 3, 2, and it is an open coil with a span of 15.

[0025] The third group of coils 3 has a number of turns of 2, 3, 2, is a closed coil, and has a span of 15.

[0026] Among them, the fourth group of coils 4 has the number of turns of 3, 2, 3, 2, is a closed coil, and has a span of 15.

[0027] A dual-voltage generator wiring method comprises the following steps:

[0028] The first coil group, the second coil group, the third coil group and the fourth coil group are formed by respectively setting the preset number of turns; the first coil group and the second coil group are set as open coils, and the third coil group and the fourth coil group are set as closed coils.

[0029] The first group of coils, the second group of coils, the third group of coils and the fourth group of coils are embedded to form the dual voltage generator winding; specifically, when embedding the wires, the first group of coils, the second group of coils, the third group of coils and the fourth group of coils are embedded in turn, and the wires are embedded in a cycle, for a total of six cycles.

[0030] Among them, the number of turns of the first group of coils is 2, 3, 2; the number of turns of the second group of coils is 3, 2, 3, 2; the number of turns of the third group of coils is 2, 3, 2; and the number of turns of the fourth group of coils is 3, 2, 3, 2.

[0031] The spans of the first group of coils, the second group of coils, the third group of coils and the fourth group of coils are all 15.

[0032] like Figure 2 As shown, 4 U1s connected together are represented by U, 4 V1s connected together are represented by V, 4 W1s connected together are represented by W, 4 U2s, 4 V2s and 4 W2s connected together are represented by N, U3 and U4 connected in parallel are represented by U1, V3 and V4 connected in parallel are represented by V1, and W3 and W4 connected in parallel are represented by W1; when the user connects U, V, W, N, the voltage is 660V, and when the user connects U1, V1, W1, N, the voltage is 400V; among them, the N line is not connected if it is connected in a three-phase three-wire system.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-voltage generator winding, which is a four-pole dual-voltage generator winding, consists of a first group of coils (1), a second group of coils (2), a third group of coils (3) and a fourth group of coils (4), wherein the first group of coils (1), the second group of coils (2), the third group of coils (3) and the fourth group of coils (4) are each provided with 6 groups.

2. A dual voltage generator winding according to claim 1, characterized in that: The number of stator slots of the dual-voltage generator winding is 84.

3. A dual voltage generator winding according to claim 2, characterized in that: The first group of coils (1) has 2, 3, 2 turns, is an open coil, and has a span of 15.

4. A dual voltage generator winding according to claim 3, characterized in that: The number of turns of the second group of coils (2) is 3, 2, 3, 2, and they are open coils with a span of 15.

5. A dual voltage generator winding according to claim 4, characterized in that: The third group of coils (3) has a number of turns of 2, 3, 2, is a closed coil, and has a span of 15.

6. A dual voltage generator winding according to claim 5, characterized in that: The fourth group of coils (4) has a number of turns of 3, 2, 3, 2, is a closed coil, and has a span of 15.

7. A dual-voltage generator wiring method, characterized in that: The steps include: The first coil group, the second coil group, the third coil group and the fourth coil group are formed by respectively setting a preset number of turns; the first coil group and the second coil group are formed as open coils, and the third coil group and the fourth coil group are formed as closed coils; The first group of coils, the second group of coils, the third group of coils and the fourth group of coils are embedded to form the dual voltage generator winding; specifically, when embedding the wires, the first group of coils, the second group of coils, the third group of coils and the fourth group of coils are embedded in turn, and the wires are embedded in a cycle, for a total of six cycles.

8. A dual-voltage generator wiring method according to claim 7, characterized in that: The number of turns of the first group of coils is 2, 3, 2; the number of turns of the second group of coils is 3, 2, 3, 2; the number of turns of the third group of coils is 2, 3, 2; and the number of turns of the fourth group of coils is 3, 2, 3, 2.

9. A dual-voltage generator wiring method according to claim 7, characterized in that: The spans of the first coil group, the second coil group, the third coil group and the fourth coil group are all 15.

Images