Star-delta step-down starting display device
By designing the Star Triangle Step-down Starting Display Device, the signal display component and wire assembly are used to determine the start-up transition status, which solves the problem that the start-up test of the ship pump motor cannot be carried out normally, ensuring that the motor start-up test is carried out smoothly and does not affect the commissioning period.
Patent Information
- Application Number
- CN202422364458.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The motor start-up test of ship pumps was not properly installed in advance and the system pipeline was not fully connected, resulting in the start-up test being unable to proceed normally, affecting the commissioning period.
A star triangular step-down start display device is designed, including a signal display component, a wire component, a star contact component and an angular contact component. The start-up transition state is judged by the brightness change, and the start-up test is performed instead of the three-phase motor.
The motor start-up test is achieved normally, and the commissioning period does not affect the motor start-up test process is simplified.
Smart Images
Figure CN223156995U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a star-delta starting display device. Background Art
[0002] Star-delta starting is a method of reducing the starting current by changing the connection mode of the three-phase motor windings. During starting, the motor windings are connected in star (Y-type), and at this time, the voltage borne by each group of windings is the power supply phase voltage (220V), thereby reducing the starting current. When the motor starts successfully, through switching, the windings are converted from star connection to delta (△-type) connection. At this time, the voltage borne by each phase winding is the power supply line voltage (380V), and the motor enters the normal operation state. This connection method is widely used in ship pumps. However, since most ship pumps are located in the engine room, due to problems such as the failure to install equipment in place in time during the initial construction and the incomplete connection of the system pipelines, the motor starting test work cannot be carried out normally, affecting the commissioning period.
[0003] Therefore, a star-delta starting display device is needed to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a star-delta starting display device, which can replace the three-phase motor to carry out the motor starting test, so as to ensure the normal progress of the motor starting test and not affect the commissioning period.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] The star-delta starting display device includes:
[0007] An installation box body;
[0008] A signal display component, including a first display lamp, a second display lamp and a third display lamp arranged on the installation box body;
[0009] A first wire component, arranged in the installation box body, including a first U-phase wire and a second U-phase wire. The first U-phase wire is connected to the positive pole of the first display lamp, and the second U-phase wire is connected to the negative pole of the first display lamp;
[0010] A second wire component, arranged in the installation box body, including a first V-phase wire and a second V-phase wire. The first V-phase wire is connected to the positive pole of the second display lamp, and the second V-phase wire is connected to the negative pole of the second display lamp;
[0011] A third wire assembly is arranged in the installation box, comprising a first W-phase wire and a second W-phase wire, the first W-phase wire is connected to the positive electrode of the third display lamp, the second W-phase wire is connected to the negative electrode of the third display lamp, and the first U-phase wire, the first V-phase wire and the first W-phase wire respectively correspond to one phase of a three-phase power supply;
[0012] A star contact assembly, arranged in the installation box, for star connection of the signal display assembly;
[0013] An angular contact assembly is arranged in the installation box body and is used for triangle connection of the signal display assembly.
[0014] In some embodiments, the star contact assembly includes a first star contactor, a second star contactor and a third star contactor, one end of the first star contactor is connected to the second U-phase wire, one end of the second star contactor is connected to the second V-phase wire, one end of the third star contactor is connected to the second W-phase wire, and the other end of the first star contactor, the other end of the second star contactor and the other end of the third star contactor are connected.
[0015] In some embodiments, the first star contactor, the second star contactor and the third star contactor are arranged in linkage.
[0016] In some embodiments, the angular contact assembly includes a first angular contactor, a second angular contactor and a third angular contactor, one end of the first angular contactor is connected to the first U-phase wire, the other end of the first angular contactor is connected to the second V-phase wire, one end of the second angular contactor is connected to the first V-phase wire, the other end of the second angular contactor is connected to the second W-phase wire, one end of the third angular contactor is connected to the first W-phase wire, and the other end of the third angular contactor is connected to the second U-phase wire.
[0017] In some embodiments, the first angular contactor, the second angular contactor and the third angular contactor are arranged in linkage.
[0018] In some embodiments, a three-phase wiring terminal is provided on the installation box body, and the first U-phase wire, the first V-phase wire and the first W-phase wire are respectively connected to a corresponding phase of the three-phase wiring terminal.
[0019] In some embodiments, the first display light, the second display light and the third display light are all connected in series with a transformer, and the transformer is used to reduce the voltage.
[0020] In some embodiments, a first mounting hole, a second mounting hole, and a third mounting hole are provided on the mounting box body. The first display lamp is located in the first mounting hole, the second display lamp is located in the second mounting hole, and the third display lamp is located in the third mounting hole.
[0021] In some embodiments, the mounting box body includes an upper box body and a lower box body. The upper box body is snapped onto the lower box body, and the signal display assembly is located in the upper box body.
[0022] In some embodiments, a sealing ring is provided between the upper box body and the lower box body.
[0023] Advantages of the present utility model:
[0024] A star-delta step-down starting display device provided by the present utility model is provided with a signal display assembly on a mounting box body. The signal display assembly includes a first display lamp, a second display lamp, and a third display lamp. The first wire assembly includes a first U-phase wire and a second U-phase wire connected to the first display lamp. The second wire assembly includes a first V-phase wire and a second V-phase wire connected to the second display lamp. The third wire assembly includes a first W-phase wire and a second W-phase wire connected to the third display lamp. The star contact assembly is used for star connection of the signal display assembly, and the delta contact assembly is used for delta connection of the signal display assembly. Through the above settings, star connection is achieved by using the star contact assembly, and delta connection is achieved by using the delta contact assembly. During the debugging process, only the star contact assembly and the delta contact assembly need to be switched. Since the voltage of star connection is relatively low and the signal display assembly is relatively dim, while the voltage of delta connection is high and the signal display assembly is relatively bright. By the brightness change of the signal display assembly, it can be judged whether the star-delta starting conversion is completed. Using the present star-delta step-down starting display device can replace a three-phase motor to conduct a motor starting test, thereby ensuring the normal progress of the motor starting test and not affecting the debugging schedule. Description of the Drawings
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.
[0026] Figure 1 is the schematic diagram of a star-delta step-down starting display device of the present utility model;
[0027] Figure 2 is the schematic diagram of the mounting box body in a star-delta step-down starting display device of the present utility model.
[0028] In the figure:
[0029] 1. Installation box body; 11. Upper box body; 12. Lower box body; 2. Signal display component; 21. First display lamp; 22. Second display lamp; 23. Third display lamp; 30. First U-phase wire; 31. Second U-phase wire; 40. First V-phase wire; 41. Second V-phase wire; 50. First W-phase wire; 51. Second W-phase wire; 60. First star contactor; 61. Second star contactor; 62. Third star contactor; 70. First delta contactor; 71. Second delta contactor; 72. Third delta contactor; 80. Three-phase terminal block. Specific implementation manner
[0030] Before explaining any implementation manner of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.
[0031] In the present application, the terms "include", "comprise", "have" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including such element.
[0032] In the present application, the terms "connect", "combine", "couple", "mount" can be direct connection, combination, coupling or mounting, or can be indirect connection, combination, coupling or mounting. Among them, by way of example, direct connection means that two parts or components are connected together without the need to provide an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.
[0033] In the present application, those of ordinary skill in the art will understand that the functions performed by components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by parts can also be performed by one part, one component, or a combination of multiple parts.
[0034] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", and "back" are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one component is connected "above" or "below" another component, it can not only be directly connected "above" or "below" another component, but also be indirectly connected "above" or "below" another component through an intermediate component. It should also be understood that orientation terms such as the upper side, lower side, left side, right side, front side, and back side not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower back, etc.
[0035] To ensure the normal progress of the motor starting test and not affect the commissioning schedule, as Figure 1 - Figure 2 shown, the present utility model provides a star-delta step-down starting display device. The star-delta step-down starting display device includes an installation box body 1, a signal display component 2, a first wire component, a second wire component, a third wire component, a star contact component, and a delta contact component.
[0036] Among them, the signal display component 2 includes a first display lamp 21, a second display lamp 22, and a third display lamp 23 provided on the installation box body 1. The first wire component is arranged in the installation box body 1 and includes a first U-phase wire 30 and a second U-phase wire 31. The first U-phase wire 30 is connected to the positive electrode of the first display lamp 21, and the second U-phase wire 31 is connected to the negative electrode of the first display lamp 21. The second wire component is arranged in the installation box body 1 and includes a first V-phase wire 40 and a second V-phase wire 41. The first V-phase wire 40 is connected to the positive electrode of the second display lamp 22, and the second V-phase wire 41 is connected to the negative electrode of the second display lamp 22. The third wire component is arranged in the installation box body 1 and includes a first W-phase wire 50 and a second W-phase wire 51. The first W-phase wire 50 is connected to the positive electrode of the third display lamp 23, and the second W-phase wire 51 is connected to the negative electrode of the third display lamp 23. The first U-phase wire 30, the first V-phase wire 40, and the first W-phase wire 50 respectively correspond to one phase of the three-phase power supply. The star contact component is arranged in the installation box body 1 and is used for the star connection of the signal display component 2; the delta contact component is arranged in the installation box body 1 and is used for the delta connection of the signal display component 2.
[0037] During the debugging process, only the star contact component and the delta contact component need to be switched. Since the voltage of the star connection is lower, the signal display component 2 is dimmer, while the voltage of the delta connection is higher and the signal display component 2 is brighter. Through the brightness change of the signal display component 2, it can be judged whether the star-delta starting conversion is completed. Using this star-delta step-down starting display device can replace the three-phase motor to conduct the motor starting test, thus ensuring the normal progress of the motor starting test and not affecting the commissioning schedule.
[0038] In some embodiments, the star contact assembly includes a first star contactor 60, a second star contactor 61, and a third star contactor 62, one end of the first star contactor 60 is connected to the second U-phase conductor 31, one end of the second star contactor 61 is connected to the second V-phase conductor 41, one end of the third star contactor 62 is connected to the second W-phase conductor 51, and the other end of the first star contactor 60, the other end of the second star contactor 61, and the other end of the third star contactor 62 are connected. By controlling the first star contactor 60, the second star contactor 61, and the third star contactor 62 to be turned on, the star connection is achieved.
[0039] In some embodiments, the first star contactor 60, the second star contactor 61 and the third star contactor 62 are arranged in linkage. Through the above arrangement, it is convenient to synchronously control the conduction and disconnection of the first star contactor 60, the second star contactor 61 and the third star contactor 62.
[0040] In some embodiments, the angular contact assembly includes a first angular contactor 70, a second angular contactor 71, and a third angular contactor 72, one end of the first angular contactor 70 is connected to the first U-phase conductor 30, the other end of the first angular contactor 70 is connected to the second V-phase conductor 41, one end of the second angular contactor 71 is connected to the first V-phase conductor 40, the other end of the second angular contactor 71 is connected to the second W-phase conductor 51, one end of the third angular contactor 72 is connected to the first W-phase conductor 50, and the other end of the third angular contactor 72 is connected to the second U-phase conductor 31. By controlling the first angular contactor 70, the second angular contactor 71, and the third angular contactor 72 to be turned on, a triangle connection can be achieved.
[0041] In some embodiments, the first angular contactor 70, the second angular contactor 71 and the third angular contactor 72 are arranged in linkage. Through the above arrangement, it is convenient to synchronously control the first angular contactor 70, the second angular contactor 71 and the third angular contactor 72 to be turned on or off.
[0042] In some embodiments, a three-phase terminal block 80 is provided on the installation box body 1, and the first U-phase conductor 30, the first V-phase conductor 40 and the first W-phase conductor 50 are respectively connected to a corresponding phase of the three-phase terminal block 80. By providing the three-phase terminal block 80, the wiring of the three-phase power supply is facilitated.
[0043] In some embodiments, the first display light 21 , the second display light 22 and the third display light 23 are all connected in series with a transformer, and the transformer is used to reduce the voltage. By providing the transformer, the voltage can be stepped down, thereby reducing the voltage of the signal display component 2 .
[0044] In some embodiments, a first mounting hole, a second mounting hole, and a third mounting hole are provided on the mounting box body 1. The first display lamp 21 is located in the first mounting hole, the second display lamp 22 is located in the second mounting hole, and the third display lamp 23 is located in the third mounting hole. Through the above settings, the installation of the first display lamp 21, the second display lamp 22, and the third display lamp 23 is facilitated.
[0045] In some embodiments, the mounting box body 1 includes an upper box body 11 and a lower box body 12. The upper box body 11 is buckled with the lower box body 12, and the signal display assembly 2 is located on the upper box body 11. Through the above settings, it is convenient to encapsulate the first wire assembly, the second wire assembly, the third wire assembly, the star contact assembly, and the angular contact assembly to avoid the influence of the outside world.
[0046] In some embodiments, a sealing ring is provided between the upper box body 11 and the lower box body 12. By setting the sealing ring, the sealing effect can be further improved to prevent dust or other impurities from entering the mounting box body 1.
[0047] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. Star-delta starting voltage reduction display device, characterized in that, include: Installing the box body (1); A signal display assembly (2), comprising a first display light (21), a second display light (22) and a third display light (23) arranged on the installation box body (1); A first wire assembly is arranged in the installation box (1), comprising a first U-phase wire (30) and a second U-phase wire (31), wherein the first U-phase wire (30) is connected to the positive electrode of the first display light (21), and the second U-phase wire (31) is connected to the negative electrode of the first display light (21); A second wire assembly is arranged in the installation box (1), comprising a first V-phase wire (40) and a second V-phase wire (41), wherein the first V-phase wire (40) is connected to the positive electrode of the second display light (22), and the second V-phase wire (41) is connected to the negative electrode of the second display light (22); A third wire assembly is arranged in the installation box body (1), comprising a first W-phase wire (50) and a second W-phase wire (51), wherein the first W-phase wire (50) is connected to the positive electrode of the third display light (23), the second W-phase wire (51) is connected to the negative electrode of the third display light (23), and the first U-phase wire (30), the first V-phase wire (40) and the first W-phase wire (50) respectively correspond to one phase of a three-phase power supply; A star contact assembly, arranged in the installation box (1) and used for star connection of the signal display assembly (2); An angular contact component is arranged in the installation box body (1) and is used for triangle connection of the signal display component (2).
2. The star-delta step-down starting display device according to claim 1, characterized in that, The star contact assembly comprises a first star contactor (60), a second star contactor (61) and a third star contactor (62), one end of the first star contactor (60) is connected to the second U-phase conductor (31), one end of the second star contactor (61) is connected to the second V-phase conductor (41), one end of the third star contactor (62) is connected to the second W-phase conductor (51), and the other end of the first star contactor (60), the other end of the second star contactor (61) and the other end of the third star contactor (62) are connected.
3. The star-delta step-down starting display device according to claim 2, wherein The first star contactor (60), the second star contactor (61) and the third star contactor (62) are arranged in linkage.
4. The star-delta step-down starting display device according to claim 1, characterized in that, The angular contact assembly comprises a first angular contactor (70), a second angular contactor (71) and a third angular contactor (72); one end of the first angular contactor (70) is connected to the first U-phase conductor (30), the other end of the first angular contactor (70) is connected to the second V-phase conductor (41), one end of the second angular contactor (71) is connected to the first V-phase conductor (40), the other end of the second angular contactor (71) is connected to the second W-phase conductor (51), one end of the third angular contactor (72) is connected to the first W-phase conductor (50), and the other end of the third angular contactor (72) is connected to the second U-phase conductor (31).
5. The star-delta reduced voltage starting display device according to claim 4, characterized in that, The first corner contactor (70), the second corner contactor (71) and the third corner contactor (72) are arranged in linkage.
6. The star-delta reduced voltage starting display device according to claim 1, characterized in that, A three-phase terminal block (80) is provided on the mounting box body (1), and the first U-phase wire (30), the first V-phase wire (40) and the first W-phase wire (50) are respectively connected to one phase corresponding to the three-phase terminal block (80).
7. The star-delta step-down starting display device according to claim 1, characterized in that, A transformer is connected in series with each of the first display lamp (21), the second display lamp (22) and the third display lamp (23), and the transformer is used to reduce the voltage.
8. The star-delta step-down starting display device according to claim 1, characterized in that, The mounting box body (1) is provided with a first mounting hole, a second mounting hole and a third mounting hole. The first display lamp (21) is located in the first mounting hole, the second display lamp (22) is located in the second mounting hole, and the third display lamp (23) is located in the third mounting hole.
9. The star-delta reduced voltage starting display device according to claim 1, characterized in that, The mounting box body (1) includes an upper box body (11) and a lower box body (12). The upper box body (11) is buckled with the lower box body (12), and the signal display assembly (2) is located in the upper box body (11).
10. The star-delta step-down starting display device according to claim 9, wherein A sealing ring is provided between the upper box body (11) and the lower box body (12).