CN220855037U

CN220855037U - Verification device for forward and reverse rotation of motor

Info

Publication number: CN220855037U
Application number: CN202322611518.6U
Authority: CN
Inventors: 苏亮; 杨博淙; 金志鑫; 杨雨熙; 孟佳琳
Original assignee: Saiteng Electromechanical Technology Changzhou Co ltd
Current assignee: Saiteng Electromechanical Technology Changzhou Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2024-04-26
Anticipated expiration: 2033-09-26

Abstract

The utility model discloses a motor forward and backward rotation verification device, which comprises: casing, three binding post, PCB board, switch and display module, binding post are located the inside of casing to be connected with the casing, the PCB board is located the inside of casing, and is connected with the casing, and the PCB board is connected with the binding post, and the switch is located the outside of casing, and is connected with the casing, and the switch is connected with the PCB board, and display module is located the outside of casing, and is connected with the casing, and display module is connected with the PCB board. According to the utility model, through the integrated design of the wiring terminal, the PCB and the display assembly, in the process of verifying the forward and reverse rotation of the motor, only the motor is required to be connected with the power supply and the wiring terminal, so that the risk of electric shock during work of operators can be reduced, the safety of forward and reverse rotation operation of the motor is improved, and meanwhile, the motor fault and the damage of a verification device caused by phase sequence dislocation can be avoided.

Description

Verification device for forward and reverse rotation of motor

Technical Field

The utility model relates to the technical field of motor detection, in particular to a motor forward and reverse rotation verification device.

Background

The motor used by the circulating pump is a submersible motor, and is connected with the centrifugal pump for combined use, and the submersible motor is arranged in the sleeve and can be used in a high-pressure environment. When the on-site operation, if the motor reverses, no pressure difference exists between the outlet end and the inlet end of the circulating pump, water always circulates in the sleeve, and at the moment, the motor current rises, so that the motor heats up, the heat dissipation effect of the motor can be influenced, and finally the motor winding wire burns out and breaks down, and the motor fails, so that the forward and reverse rotation of the motor needs to be verified. The current mode for verifying the forward and reverse rotation of the motor is as follows:

1. starting the motor on site, observing the current of the motor, restarting the motor after changing the phase sequence if the current exceeds a rated point, and turning the motor forward when the current is lower and turning the motor backward when the current is higher;

2. By observing the pressure gauge at the outlet end of the circulating pump, the motor can rotate forwards if the pressure gauge at the opening end of the motor is obviously increased, and the motor can rotate reversely if the pressure at the outlet end is not obviously changed after the motor is opened.

When the motor load is smaller, the current does not exceed the rated current even though the motor rotates reversely, and therefore great difficulty is brought to field personnel in judging the forward and reverse rotation of the motor. Meanwhile, as the front pipeline and the rear pipeline of the circulating pump are not necessarily provided with pressure gauges, operators cannot judge the forward and reverse rotation of the motor through the pressure difference of the front pipeline and the rear pipeline of the circulating pump. Therefore, in the process of verifying the forward and reverse rotation of the motor on site, the forward and reverse rotation of the motor can be verified through the external phase sequence meter, however, when the motor is electrified, a certain safety risk exists when an operator holds the phase sequence meter for verification.

Disclosure of utility model

The utility model aims to solve the technical problems that: in order to solve the technical problem of poor forward and reverse rotation verification operation safety of the existing motor, the utility model provides the forward and reverse rotation verification device for the motor, and through improvement of the verification device, the integrated design of a wiring terminal, a PCB (printed circuit board) and a display assembly is realized, so that the risk of electric shock of working personnel can be reduced.

The technical scheme adopted for solving the technical problems is as follows: a motor forward and reverse rotation verification device, comprising: casing, three binding post, PCB board, switch and display module, binding post is located the inside of casing, and with the casing is connected, the PCB board with the binding post is connected, the switch is located the outside of casing, and with the casing is connected, the switch with the PCB board is connected, the display module is located the outside of casing, and with the casing is connected, the display module with the PCB board is connected.

Therefore, through binding post, PCB board and display module integrated design, at the in-process to motor positive reverse rotation verification, only need be connected motor and power and binding post, can reduce the risk that the operation personnel work was electrocuted, improve the security of motor positive reverse rotation operation, simultaneously, can avoid leading to motor failure and verifying device damage because of the phase sequence dislocation.

Further, the display assembly includes: the first indicator lamps and the second indicator lamps are located outside the shell, and are connected with the shell, the first indicator lamps and the second indicator lamps are all provided with a plurality of indicator lamps, and the number of the first indicator lamps and the number of the second indicator lamps are equal to the number of the wiring terminals. Therefore, the first indicator lamp is used for displaying whether the verification device is normally powered or not, the second indicator lamp is used for displaying whether the phase sequence is correct or not, if so, the motor is indicated to rotate positively, and if not, the motor is indicated to rotate reversely.

Further, the first indicator lamp and the second indicator lamp are connected with the PCB. Therefore, the electric connection between the first indicator lamp and the second indicator lamp can be ensured, and the forward and reverse rotation states displayed by the first indicator lamp and the second indicator lamp can be further ensured.

Further, a first wiring terminal and a second wiring terminal are respectively arranged on two sides of the wiring terminal, and the PCB is connected with the first wiring terminal or the second wiring terminal through a wire. Thus, the electrical connection of the PCB board can be ensured.

Further, a plurality of third wiring terminals are arranged on one side, close to the wiring terminals, of the PCB, and the number of the third wiring terminals is equal to that of the wiring terminals. Thus, the motor three phases and the power supply three phases can be connected by three connection terminals and three third connection terminals.

Further, the third terminal is connected to the first terminal or the second terminal through the wire.

Further, a plurality of protrusions are arranged in the shell, first through holes are formed in the PCB, and the number of the protrusions is equal to that of the first through holes.

Further, the PCB board is connected with the protrusions through bolts. Therefore, the PCB is mounted through the cooperation of the protrusions and the bolts, on one hand, the mounting of the PCB can be facilitated, on the other hand, gaps between the PCB and the shell can be ensured, direct contact between the PCB and the shell is avoided, and the heat dissipation of the PCB is facilitated.

Further, the housing is provided with a containing cavity, and the wiring terminals and the PCB are both positioned in the containing cavity. From this, can protect binding post, PCB board through the casing, can further avoid verifying the device to take place to damage, improve verifying the life of device.

Further, second through holes are formed in two sides of the shell, and the second through holes are communicated with the accommodating cavity. Thereby facilitating electrical connection between the motor, the power supply and the connection terminal.

Compared with the prior art, the utility model has the beneficial effects that:

Through binding post, PCB board and display module integrated design, at the in-process to motor positive reverse rotation verification, only need be connected motor and power and binding post, can reduce the risk that the operation personnel work was electrocuted, improve the security of motor positive reverse rotation operation, simultaneously, can avoid leading to motor failure and verifying device damage because of the phase sequence dislocation.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of a motor forward and reverse rotation verification device;

FIG. 2 is a schematic cross-sectional view of a first view of a motor forward/reverse rotation verification device according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a first view of a motor forward/reverse rotation verification device according to the present utility model;

Fig. 4 is an effect diagram of the installation of the motor forward and reverse rotation verification device of the present utility model.

In the figure: 1. a housing; 101. a receiving chamber; 102. a second through hole; 103. a protrusion; 2. a connection terminal; 201. a first terminal; 202. a second terminal; 3. a PCB board; 301. a third terminal; 302. a first through hole; 4. a switch; 5. a display assembly; 501. a first indicator light; 502. a second indicator light; 100. a motor forward and backward rotation verification device; 200. a sleeve.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 4, which are preferred embodiments of the present utility model, a motor forward/reverse rotation verification apparatus 100 of the present embodiment includes: casing 1, three binding post 2, PCB board 3, switch 4 and display module 5, binding post 2 are located the inside of casing 1 to be connected with casing 1, PCB board 3 is located the inside of casing 1, and is connected with casing 1, PCB board 3 is connected with binding post 2, switch 4 is located the outside of casing 1, and is connected with casing 1, switch 4 is connected with PCB board 3, display module 5 is located the outside of casing 1, and is connected with casing 1, display module 5 is connected with PCB board 3. From this, through binding post 2, PCB board 3 and display module 5 integrated design, at the in-process to motor positive and negative rotation verification, only need be connected motor and power and binding post 2, can reduce the risk that the staff work electrocuted, improve the security of motor positive and negative rotation operation, simultaneously, can avoid leading to motor failure and verifying device damage because of the phase sequence dislocation.

Specifically, the electrical connection between the wiring terminal 2 and the PCB board 3 can be controlled through the switch 4, so as to control the verification process of the verification device.

In this embodiment, the housing 1 is provided with a receiving cavity 101, two sides of the housing 1 are provided with second through holes 102, the wiring terminal 2 and the PCB 3 are both located in the receiving cavity 101, and the second through holes 102 are communicated with the receiving cavity 101. Therefore, the shell 1 can protect the wiring terminal 2 and the PCB 3, so that the damage of the verification device can be further avoided, and the service life of the verification device is prolonged; facilitating the electrical connection between the motor, the power supply and the terminal block 2.

In this embodiment, a plurality of protrusions 103 are provided in the housing 1, the PCB 3 is provided with first through holes 302, the number of the protrusions 103 is equal to the number of the first through holes 302, and the PCB 3 is connected to the protrusions 103 through bolts (not shown). From this, install PCB board 3 through the cooperation of protruding 103 and bolt, on the one hand, can be convenient for the installation of PCB board 3, on the other hand, can ensure that there is the clearance between PCB board 3 and casing 1, avoid the direct contact between PCB board 3 and casing 1, the heat dissipation of PCB board 3 of being convenient for.

In this embodiment, the two sides of the connection terminal 2 are respectively provided with a first connection terminal 201 and a second connection terminal 202, one side of the pcb 3 near the connection terminal 2 is provided with a plurality of third connection terminals 301, the number of the third connection terminals 301 is equal to that of the connection terminal 2, and the third connection terminals 301 are connected with the first connection terminal 201 or the second connection terminal 202 through wires (not shown in the figure). Thereby, electrical connection of the PCB 3 can be ensured; the motor three phases and the power supply three phases can be connected by three connection terminals 2, three third connection terminals 301.

Specifically, the third terminal 301 is connected to the first terminal 201 or the third terminal 301 is connected to the second terminal 202, so that the forward and reverse rotation states of the motor can be verified.

In the present embodiment, the display assembly 5 includes: the first indicator lamp 501 and the second indicator lamp 502, the first indicator lamp 501 and the second indicator lamp 502 are all located outside the shell 1 and are connected with the shell 1, the first indicator lamp 501 and the second indicator lamp 502 are all provided with a plurality of, the number of the first indicator lamp 501 and the number of the second indicator lamp 502 are all equal to that of the wiring terminals 2, and the first indicator lamp 501 and the second indicator lamp 502 are all connected with the PCB 3. Therefore, the first indicator lamp 501 is used for displaying whether the verification device is normally powered, the second indicator lamp 502 is used for displaying whether the phase sequence is correct, if so, the motor is indicated to rotate positively, if not, the motor is indicated to rotate negatively, the forward and reverse rotation states of the motor can be intuitively displayed through the first indicator lamp 501 and the second indicator lamp 502, and further the forward and reverse rotation conditions of the motor can be accurately and reliably judged; the first indicator lamp 501 and the second indicator lamp 502 can be electrically connected, and the forward and reverse rotation states displayed by the first indicator lamp 501 and the second indicator lamp 502 can be ensured.

It should be noted that: 1. the three wiring terminals 2 respectively correspond to A, B, C phase sequences of the three-phase voltage of the motor, namely, the phase sequence of A, B, C of the three-phase voltage of the motor can be verified;

2. In this embodiment, if the three first indicator lamps 501 are all orange, it indicates that the verification device is powered normally, if the three first indicator lamps 501 are not all orange, it indicates that the corresponding third terminal 301 is not connected to the first terminal 201 or the second terminal 202, and the PCB 3 does not work normally, at this time, after the motor is required to be powered off, the third terminal 301 needs to be connected to the first terminal 201 or the second terminal 202 again;

3. In this embodiment, if the average of the three second indicator lamps 502 is green, the motor three-phase sequence is correct, at this time, the motor is rotating forward, if the average of the three second indicator lamps 502 is red, the motor three-phase sequence is not right, at this time, the power supply three-phase needs to be replaced until the average of the three second indicator lamps 502 is green, which indicates that the motor three-phase adjustment is successful, and the motor is rotating forward;

4. Before the verification device is used, the verification device needs to be debugged, and the specific debugging process is as follows: a. b, starting up the debugging circulating pump, adjusting the motor to rotate forward through the pressure sensor and the ammeter, if the display result of the second indicator lamp 502 is consistent with the motor rotating forward and backward (namely, the display result of the second indicator lamp 502 is consistent with the test result of the pressure sensor and the ammeter), no change is needed, if the display result of the second indicator lamp 502 is inconsistent with the motor rotating forward and backward (namely, the display result of the second indicator lamp 502 is inconsistent with the test result of the pressure sensor and the ammeter), the connection sequence between the three terminals and the three first terminals 201 or the three second terminals 202 needs to be replaced, the display result of the second indicator lamp 502 is consistent with the test result of the pressure sensor and the ammeter (if the display result of the second indicator lamp 502 is inconsistent with the test result of the pressure sensor and the ammeter, the operator cannot judge the phase sequence of the motor three phases UVW, therefore, the debugging process is based on the test result of the pressure sensor and the ammeter, the three phases of the three second indicator lamps 502 are adjusted to be verified, and the second debugging process can be directly influenced before the second terminal is verified if the three phases are not consistent with the motor rotating forward and backward;

5. The three first terminals 201 are respectively marked as a first terminal, a second terminal and a third terminal, the three second terminals 202 are respectively marked as a second terminal, a second terminal and a third terminal, the three third terminals 301 are respectively marked as a third terminal, a second terminal and a third terminal, the three first indicator lamps 501 are respectively marked as a first indicator lamp, a second indicator lamp and a third first indicator lamp, the three second indicator lamps 502 are respectively marked as a second indicator lamp, a second indicator lamp and a third indicator lamp, after wiring debugging is finished, the first terminal is connected with the phase sequence end of the motor A, the second terminal is connected with the phase sequence end of the motor B, the third terminal is connected with the phase sequence end of the motor C, the first second wiring terminal is connected with the phase sequence end of the power supply A, the second wiring terminal is connected with the phase sequence end of the power supply B, the third wiring terminal is connected with the phase sequence end of the power supply C, the first third wiring terminal is connected with the first wiring terminal or the second wiring terminal, the third wiring terminal is connected with the first wiring terminal or the second wiring terminal, and the motor is in positive rotation (the first wiring terminal is connected with the phase sequence of the motor C, the second wiring terminal is connected with the phase sequence of the power supply C, the first wiring terminal is connected with the phase sequence of the motor A, the second wiring terminal is connected with the phase sequence of the power supply A, the third wiring terminal is connected with the phase sequence of the motor B, the third wiring terminal is connected with the phase sequence of the power supply B, the second wiring terminal is connected with the phase sequence of the motor C, the second wiring terminal is connected with the phase sequence of the power supply C, the third wiring terminal is connected with the phase sequence of the motor A, the third wiring terminal is connected with the phase sequence of the power supply A, the motor is in positive rotation, after the phase is converted twice, the phase sequence of the motor is unchanged, after the phase is converted once, the phase sequence of the motor is changed, in the later adjustment process, if the motor is verified to be in reverse rotation, the wiring sequence of any two second wiring terminals in the three second wiring terminals is changed, and the motor can be adjusted to be in positive rotation);

6. In the verification process, the verification device 100 for the forward and reverse rotation of the motor is installed on the sleeve 200 of the circulating pump and is connected (as shown in fig. 4), and the verification device 100 for the forward and reverse rotation of the motor is electrically connected with the motor (not shown in the figure) and a power supply (not shown in the figure).

The positive and negative rotation verification process of the motor comprises the following steps: in the verification process of the positive and negative rotation of the motor, according to a debugging result, a first wiring terminal, a second wiring terminal and a third wiring terminal are respectively connected with an A phase sequence end, a B phase sequence end and a C phase sequence end of the motor, and a second wiring terminal, a second wiring terminal and a third wiring terminal are respectively connected with the A phase sequence end, the B phase sequence end and the C phase sequence end of a power supply;

Then, the motor is started and the switch 4 is pressed down, if the three first indicator lamps 501 are all orange in quantity, the PCB 3 is indicated to be normally powered, the positive and negative rotation states of the motor can be verified through the verification device, if the three first indicator lamps 501 are not all orange in quantity, the motor is turned off and the switch 4 is pressed down again, the electric connection between the wiring terminal 2 and the PCB 3 is disconnected, the wires between the third wiring terminal 301 and the first wiring terminal 201 or the second wiring terminal 202 are reconnected until the three first indicator lamps 501 are all orange in quantity (for example, if the first indicator lamp is not orange in quantity, the wires between the first wiring terminal and the first wiring terminal or the second wiring terminal need to be reconnected);

Finally, if the average of the three second indicator lamps 502 is green, it indicates that the motor is rotating forward at this time, and if the average of the three second indicator lamps 502 is red, it indicates that the motor is rotating backward at this time, it is necessary to randomly exchange the three second terminals 202 with the wires of the power supply a phase sequence, B phase sequence and C phase sequence for two, and when the average of the three second indicator lamps 502 is green, the motor is adjusted to rotate forward at this time.

In summary, according to the utility model, through the integrated design of the wiring terminal 2, the PCB 3 and the display assembly 5, in the process of verifying the forward and reverse rotation of the motor, only the motor is required to be connected with the power supply and the wiring terminal 2, so that the risk of electric shock during work of operators can be reduced, the safety of forward and reverse rotation operation of the motor is improved, and meanwhile, the motor fault and the damage of the verification device caused by phase sequence dislocation can be avoided.

The above-described preferred embodiments according to the present utility model are intended to suggest that, from the above description, various changes and modifications can be made by the worker in question without departing from the technical spirit of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined as the scope of the claims.

Claims

1. A motor forward and reverse rotation verification device, comprising:

a housing (1), and

Three connecting terminals (2), wherein the connecting terminals (2) are positioned in the shell (1) and are connected with the shell (1);

The PCB (3) is positioned in the shell (1) and is connected with the shell (1), and the PCB (3) is connected with the wiring terminal (2);

The switch (4) is positioned outside the shell (1) and connected with the shell (1), and the switch (4) is connected with the PCB (3);

The display assembly (5) is positioned outside the shell (1) and connected with the shell (1), and the display assembly (5) is connected with the PCB (3).

2. A motor forward and reverse rotation verification device according to claim 1, wherein the display assembly (5) comprises: first pilot lamp (501) and second pilot lamp (502), first pilot lamp (501) second pilot lamp (502) all are located the outside of casing (1), and with casing (1) are connected, first pilot lamp (501) second pilot lamp (502) all are provided with a plurality of, the quantity of first pilot lamp (501) second pilot lamp (502) all with the quantity of binding post (2) equals.

3. The motor forward and backward rotation verification device according to claim 2, wherein the first indicator lamp (501) and the second indicator lamp (502) are connected with the PCB board (3).

4. The motor forward and backward rotation verification device according to claim 1, wherein a first wiring terminal (201) and a second wiring terminal (202) are respectively arranged on two sides of the wiring terminal (2), and the PCB board (3) is connected with the first wiring terminal (201) or the second wiring terminal (202) through a wire.

5. The motor forward and backward rotation verification device according to claim 4, wherein a plurality of third terminals (301) are arranged on one side of the PCB board (3) close to the connection terminals (2), and the number of the third terminals (301) is equal to the number of the connection terminals (2).

6. The motor forward and reverse rotation verification device according to claim 5, wherein the third terminal (301) is connected to the first terminal (201) or the second terminal (202) through the wire.

7. The motor forward and backward rotation verification device according to claim 1, wherein a plurality of protrusions (103) are arranged in the casing (1), first through holes (302) are formed in the PCB (3), and the number of the protrusions (103) is equal to the number of the first through holes (302).

8. The motor forward and reverse rotation verification device according to claim 7, wherein the PCB board (3) is connected to the protrusion (103) by a bolt.

9. The motor forward and backward rotation verification device according to claim 1, wherein the housing (1) is provided with a containing cavity (101), and the wiring terminal (2) and the PCB board (3) are both located inside the containing cavity (101).

10. The device for verifying forward and reverse rotation of a motor according to claim 9, wherein second through holes (102) are formed in both sides of the housing (1), and the second through holes (102) are communicated with the accommodating cavity (101).