A dual voltage conversion test fixture for a 12-lead motor

Abstract

This utility model discloses a dual-voltage conversion test fixture for a 12-lead motor, belonging to the field of motor testing technology. It includes a wiring assembly, a movable test assembly, and a housing. The wiring assembly includes 12 arrayed terminals and clamping units. The clamping units can simultaneously hold and connect the 12 terminals and 12 external motor wires. Three of the terminals have connectors for connecting to testing instruments. The movable test assembly includes a movable slide plate and conductive units for making contact. The terminals slide against the working surface of the slide plate, and the conductive units are connected to the working surface of the slide plate respectively. The relatively movable slide plate can drive the conductive units to connect different terminals, achieving different circuit connections. The housing encapsulates the wiring assembly and the movable test assembly. This utility model can switch the wiring method of the 12 leads as a whole to test motors under different voltages.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, and in particular to a dual voltage conversion test fixture for a 12-lead motor. Background Technology

[0002] With the development of the times, more and more motors are required to work under multiple voltage conditions. In order to enable the motor to work under two voltage conditions, the motor leads are usually designed with 12 leads, so that the motor can use different wiring methods under different voltage conditions.

[0003] During the factory testing of the motor, it is necessary to test both voltages. Since most conventional testing instruments use wire clamps, the following problems may occur during the test: 1. The wiring is complicated and the testing time is long; 2. Multiple leads may be connected incorrectly; 3. Different voltages require different wiring methods, which may cause loose connections during the test. Utility Model Content

[0004] In view of this, it is necessary to provide a dual voltage conversion test fixture for 12-lead motors to solve the problems of complex testing process and numerous defects in existing 12-lead motor testing.

[0005] This utility model provides a dual voltage conversion test fixture for a 12-lead motor, comprising: The wiring assembly includes 12 arrayed terminals and a clamping unit. The clamping unit can simultaneously clamp and connect the 12 terminals and 12 external motor wires. Three of the terminals are provided with connectors for connecting to a test instrument. A mobile test assembly includes a movable slide plate and conductive units for contact conduction. The terminals slide against the working surface of the slide plate, and the conductive units are respectively connected to the working surface of the slide plate to conduct electricity with the terminals. The relatively movable slide plate can drive the conductive units to conduct electricity to different terminals, thereby realizing different circuit connections. The enclosure is used to enclose the wiring assembly and the mobile test assembly.

[0006] Furthermore, the terminals are arranged in a 3*4 array, with the terminals arranged longitudinally in 4 columns.

[0007] Furthermore, the conductive unit includes three horizontally arranged first metal guide plates, which are connected to the working surface of the slide plate. The first metal guide plates are equidistant from each other, and each first metal guide plate can conduct two adjacent columns of the terminals. The slide plate can drive the first metal guide plates to conduct two adjacent columns of the three columns of terminals.

[0008] Furthermore, the conductive unit includes three horizontally arranged second metal guide plates and a third metal guide plate. Both the second and third metal guide plates are connected to the working surface of the slide plate. The second metal guide plates are equidistant from each other. The third metal guide plate is electrically connected to each of the three second metal guide plates. The second metal guide plates can conduct electricity to all the terminals that are in contact with them. The slide plate can drive the second metal guide plates to conduct electricity to all the terminals in the third and fourth columns or all the terminals in the fourth column.

[0009] Furthermore, the clamping unit includes multiple wire clamps and plugs that are fixedly connected to the terminals one by one. The plug includes a gate body that is slidably connected to the encapsulation box and a gate abutment. The gate abutment is fixedly connected to the gate body. The gate abutment and the wire clamp are arranged in a one-to-one correspondence. The gate abutment and the wire clamp form a clamping space for clamping the external wires of the motor.

[0010] Furthermore, the gate body is provided with a handle that is movably inserted into the encapsulation box, and the handle can drive the opening contact to move away from the clamp.

[0011] Furthermore, the gate body is provided with a counterweight, which can drive the opening contact to approach the clamp and abut against it.

[0012] Furthermore, the slide plate is slidably engaged in the packaging box, and a sliding handle is provided on the side of the slide plate away from the conductive unit. One end of the sliding handle is fixedly connected to the slide plate, and the other end of the sliding handle extends outside the packaging box.

[0013] Furthermore, the packaging box is provided with 12 connection holes, and each connection hole is set in a corresponding manner to the wire clamp.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The present invention provides a dual voltage conversion test fixture for a 12-lead motor, which includes a wiring assembly comprising 12 arrayed terminals and a clamping unit. The clamping unit can simultaneously clamp and conduct the 12 terminals and 12 external motor wires. The wiring assembly ensures that each wire is correctly connected through the 12 arrayed terminals. Each motor wire is strictly matched with its corresponding terminal to prevent incorrect wiring. The motor leads do not need to be manually connected one by one, avoiding the repeated wiring and time-consuming process in traditional testing methods. Three of the terminals are equipped with connectors for connecting to the testing instrument. The testing instrument can drive and test the motor by clamping the connectors.

[0015] (2) The present invention provides a dual voltage conversion test fixture for a 12-lead motor, which is equipped with a movable test component. The movable test component includes a movable slide plate and conductive units for contact conduction. The terminals slide against the working surface of the slide plate, and the conductive units are respectively connected to the working surface of the slide plate. The terminals and conductive units can achieve electrical conduction by contacting each other. Through the relative movement of the slide plate, the conductive units can conduct different terminals respectively to form a corresponding connection system, adapt to different working voltages, realize the switching of circuits under different voltages, and reduce the complexity of manual operation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 is a schematic diagram of the overall structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the connection structure of the wiring assembly and the moving test assembly in this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the connection structure of the wiring assembly and the moving test assembly in this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the mobile testing component in this utility model; Figure 6 This is a schematic diagram of the structure in the first state of this utility model; Figure 7 This is a structural schematic diagram of the second state in this utility model.

[0017] In the diagram, 100 is the wiring assembly; 110 is the wiring terminal; 120 is the clamping unit; 121 is the wire clamp; 122 is the plug-in switch; 122a is the switch body; 122b is the tripping contact; 122c is the handle; 122b is the counterweight; and 130 is the connector. 200. Moving test assembly; 210. Slide plate; 211. Sliding handle; 220. Conductive unit; 221. First metal conductor; 222. Second metal conductor; 223. Third metal conductor; 300, Encapsulation housing; 310, Connection hole. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0019] This embodiment presents a dual-voltage conversion test fixture for a 12-lead motor, relating to the field of motor testing technology. By setting up a fixture and connecting the 12 terminals of the motor under test, the 12 terminals can be connected in different ways by simply sliding the slide plate 210, corresponding to different operating voltages of the motor. This facilitates testing motors under different voltages, simplifies the testing process, reduces the error rate, and improves testing efficiency.

[0020] Please see Figures 1 to 7 This embodiment provides a dual-voltage conversion test fixture for a 12-lead motor, comprising: a wiring assembly 100, a movable test assembly 200, and a housing 300. The wiring assembly 100 connects the 12 leads of the motor to the test fixture. The movable test assembly 200 can change the continuity between the 12 leads, allowing the motor to operate at different voltages, thus facilitating testing of the motor by external equipment. The housing 300 encapsulates the wiring assembly 100 and the movable test assembly 200, providing effective electrical insulation.

[0021] The wiring assembly 100 includes 12 arrayed terminal blocks 110 and a clamping unit 120. The clamping unit 120 can simultaneously clamp and conduct the 12 terminal blocks 110 and 12 external motor wires. The wiring assembly 100 ensures that each wire is correctly connected through the 12 arrayed terminal blocks 110. Each motor wire is strictly matched with its corresponding terminal block 110 to prevent incorrect wiring. The motor leads do not need to be manually connected one by one, avoiding the repeated wiring and time-consuming process in traditional testing methods. Three of the terminal blocks 110 are equipped with connectors 130 for communication with testing instruments. The testing instruments can drive and test the motor by clamping the connectors 130.

[0022] The mobile test assembly 200 includes a movable slide plate 210 and conductive units 220 for contact conduction. The terminal 110 slides and abuts against the working surface of the slide plate 210, and the conductive units 220 are respectively connected to the working surface of the slide plate 210. Electrical conduction can be achieved by the terminal 110 abutting against the conductive units 220. Through the relative movement of the slide plate 210, the conductive units 220 can conduct different terminal 110s respectively to form a corresponding connection system, adapt to different working voltages, realize the switching of circuits under different voltages, and reduce the complexity of manual operation.

[0023] During use, first insert the external motor leads into the terminals 110 of the wiring assembly 100, and clamp each lead using the clamping unit 120, ensuring all leads are correctly connected to the terminals 110. Then, electrically connect the three terminals 110 in the wiring assembly 100 to the testing instrument via connectors 130, ready to begin testing. The operator controls the relative movement of the slide plate 210, causing the conductive unit 220 on the slide plate 210 to contact the terminals 110. The slide plate 210 can slide to different terminals 110, thus changing the circuit connection. The circuit connection status automatically adjusts according to different voltage requirements. Moving the testing assembly 200 switches the circuit via the conductive unit 220, ensuring smooth testing of the motor under different voltages.

[0024] In some embodiments, please refer to Figure 1 and Figure 3 The terminal blocks 110 are arranged in a 3x4 array, with four columns of terminal blocks arranged vertically. This 3x4 array ensures that the position of each terminal is clear and predictable, facilitating quick identification and wiring by operators. This layout avoids the wiring errors caused by the disordered arrangement of terminal blocks 110 in traditional wiring methods.

[0025] In the specific implementation process, the terminal block 110 is a copper conductive post. One end of the copper conductive post is used to connect to the motor lead, and the other end of the copper conductive post abuts against the working surface of the slide plate 210, allowing it to be electrically connected to the conductive unit 220. The terminal blocks 110 are fixed on the inner wall of the encapsulation box 300, forming a 3*4 stable array structure. By numbering each terminal block 110 from 1 to 12, and then connecting the 12 leads on the motor to the terminal blocks 110 with different numbers in sequence, it is ensured that the two correspond one-to-one.

[0026] During installation, the motor is equipped with leads at its end. The leads are of different colors and arranged in sequence. The 12 leads are connected one by one to the terminals 110 numbered 1-12 to achieve an orderly connection between the leads and the terminals 110.

[0027] In some embodiments, please refer to Figures 4 to 6The conductive unit 220 includes three horizontally arranged first metal conductive plates 221. The first metal conductive plates 221 are connected to the working surface of the slide plate 210. The first metal conductive plates 221 are equidistant from each other. Each first metal conductive plate 221 can conduct two adjacent rows of terminals 110, achieving continuity between the two terminals 110. The slide plate 210 can drive the first metal conductive plates 221 to slide relative to each other, thereby conducting two adjacent rows of the three rows of terminals 110, realizing automatic switching of terminals 110, precise continuity, and voltage configuration switching. Through the equidistant spacing of the conductive plates and the driving of the slide plate 210, the system can ensure that only two adjacent rows of terminals are connected, avoiding unnecessary or accidental contact, thus improving the accuracy of circuit connection switching.

[0028] In practice, one of the metal conductors can connect terminals 1 and 4, or switch to connect terminals 4 and 7. Another metal conductor can connect terminals 2 and 5, or switch to connect terminals 5 and 8. Yet another metal conductor can connect terminals 3 and 6, or switch to connect terminals 6 and 9.

[0029] During the sliding of the skateboard 210, the metal guide plate switches from conducting terminals 1 and 4, terminals 2 and 5, and terminals 3 and 6 to conducting terminals 4 and 7, terminals 5 and 8, and terminals 6 and 9, thus enabling the 12 motor leads to be connected in different ways to adapt to different wiring voltages.

[0030] In some embodiments, please refer to section 4 to 5. Figure 6The conductive unit 220 includes three horizontally arranged second metal guide plates 222 and a third metal guide plate 223. Both the second and third metal guide plates 222 and 223 are connected to the working surface of the slide plate 210. The second metal guide plates 222 are equidistantly spaced and can be adapted to the horizontally spaced terminals 110. The third metal guide plate 223 is electrically connected to each of the three second metal guide plates 222. The first metal guide plate 221 can conduct all the terminals 110 it contacts, ensuring that the corresponding motor leads are interconnected. The slide plate 210 can drive the second metal guide plates 222 to move relative to each other. The second metal guide plates 222 can conduct all terminals 110 in the third and fourth columns, or only all terminals 110 in the fourth column, precisely controlling the circuit's conduction path. The switching method of the slide plate 210 allows for flexible adjustment of the connection circuit during testing, ensuring an efficient testing process. Driven by the slide plate 210, the conductive unit 220 can switch specific terminals 110 as needed without manual intervention, thereby improving the flexibility and accuracy of circuit selection.

[0031] In summary, please refer to Figure 6 and Figure 7 During movement, the slide plate 210 has a first state and a second state, which correspond to two different motor fuse wiring methods and operating voltages. The motor performance can be tested in the corresponding state using external equipment.

[0032] In the first state, the three first metal conductive plates 221 respectively connect terminals 1 and 4, 2 and 5, and 3 and 6. The three second metal conductive plates 222 simultaneously connect terminals 7, 8, 9, 10, 11, and 12, forming the first lead wiring method and generating the corresponding working voltage.

[0033] In the second state, the three first metal conductive plates 221 respectively connect terminals 4 and 7, 5 and 8, and 6 and 9. The three second metal conductive plates 222 simultaneously connect terminals 10, 11, and 12, forming the second lead wiring method and generating the corresponding operating voltage.

[0034] In both states, the three-connector 130 is always connected one-to-one with terminal 110, terminal 2, and terminal 3. External testing equipment can be connected to the connector 130 via an electrical clamp to monitor the motor's operating status.

[0035] In some embodiments, please refer to Figure 3 and Figure 4 The clamping unit 120 includes a wire clamp 121 and a plug 122. The wire clamp 121 is fixedly connected to the terminal block 110 in a one-to-one correspondence, maintaining a good electrical connection. The plug 122 includes a gate body 122a slidably connected to the enclosure 300 and a trip abutment 122b. The trip abutment 122b is fixedly connected to the gate body 122a, and the gate body 122a can drive the trip abutment 122b to move synchronously. Each trip abutment 122b is configured in a one-to-one correspondence with the wire clamp 121, and each trip abutment 122b can act independently on the wire clamp 121. The clamping space formed between the trip abutment 122b and the wire clamp 121 can accurately clamp the external lead of the motor and ensure the stability of the lead during the test. The clamping action of the trip abutment 122b prevents the wire from loosening due to vibration, friction, or external factors, ensuring the stability of the electrical connection during the test.

[0036] In the specific implementation process, the wire clamp 121 is a U-shaped or L-shaped conductive block, which is welded together with the terminal block 110. Both are fixedly connected to the encapsulation box 300 to maintain a fixed position. The plug 122 is a flat structure with a sliding groove or sliding hole on the top of the encapsulation box 300. Limiting grooves are provided on both sides of the inside of the encapsulation box 300. The top and sides of the plug 122 slide and engage with the sliding groove or sliding hole and the limiting groove respectively, restricting the movement trajectory of the plug 122 and ensuring that each tripping connector 122b can cooperate with the wire clamp 121. The tripping connector 122b is made of insulating material. Each tripping connector 122b is arranged in the same way as the terminal block 110, also in a 3*4 array. The tripping connector 122b is fixedly connected to the gate body 122a and is synchronously driven by the gate body 122a.

[0037] During the movement of the entire drive stop 122 relative to the clamp 121, the manual drive of the stop body 122a slides, causing the stop body 122a to move forward and engage with the corresponding clamp 121 for clamping. The stop joint 122b moves towards the clamp 121 and begins to clamp the external motor lead. Through contact with the clamp 121, the stop joint 122b securely holds the external lead, preventing loosening or poor contact during testing.

[0038] It should be noted that the gate body 122a is equipped with a counterweight 122b. When the gate body 122a loses manual operation, the counterweight 122b can replace manual operation. The counterweight 122b can drive the tripping contact 122b to approach the clamp 121 and make relative contact, always applying pressure to the lead wire to ensure that the clamp 121 and the lead wire always maintain good contact.

[0039] In some embodiments, please refer to Figure 2 The slide plate 210 is slidably engaged within the enclosure 300. A sliding handle 211 is located on the side of the slide plate 210 furthest from the conductive unit 220. One end of the sliding handle 211 is fixedly connected to the slide plate 210, and the other end extends beyond the enclosure 300, allowing the operator to easily control the sliding of the slide plate 210 from outside the enclosure 300. The operator does not need to open the enclosure 300 or contact internal components; the slide plate 210 can be easily slid using the sliding handle 211, greatly improving operational convenience. By placing the sliding handle 211 outside the enclosure 300, the operator is prevented from directly contacting the internal electrical components, reducing the risk of safety accidents caused by contact with high-voltage or high-current components. The operator can stay away from potential electrical hazards, ensuring a safe working environment.

[0040] In the specific implementation process, a slot is provided inside the encapsulation housing 300, and the upper and lower sides of the slide plate 210 are engaged in the slot, which can limit the movement trajectory of the slide plate 210 and ensure that the terminal block 110 can always make contact with the metal conductor and conduct electricity. An opening is provided on the back of the encapsulation housing 300 to cooperate with the sliding handle 211, ensuring that the encapsulation housing 300 cannot interfere with the movement of the sliding handle 211.

[0041] When the sliding handle 211 is manually moved, the sliding plate 210 moves relative to the first metal guide plate 221 and the second metal guide plate 222 move synchronously, so that the motor lead switches between the first state and the second state, realizing the detection of the motor's working status in the two states.

[0042] In some embodiments, please refer to Figure 1 The enclosure 300 has 12 connection holes 310, each corresponding to a wire clamp 121, ensuring that each motor lead can be accurately connected to its corresponding terminal block 110. Operators can complete wiring quickly and accurately without complex judgments or manual adjustments. This avoids the possibility of incorrect wire connections or misconnections, greatly improving wiring accuracy.

[0043] In practical implementation, the connection hole 310 is either square or round. The connection hole 310 is positioned relative to the clamping space formed between the wire clamp 121 and the tripping connector 122b, ensuring that the external fuse can be inserted into the corresponding position through the connection hole 310. The enclosure 300 is provided with numerical symbols 1-12, corresponding to different terminals 110, which allows the corresponding lead to be connected to the corresponding terminal 110.

[0044] When wiring, insert the motor leads one by one into the connecting holes 310 numbered 1-12 in sequence, ensuring that the leads enter the corresponding clamping space and mate with the corresponding terminal blocks 110.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A dual voltage conversion test tool for a 12 lead motor, characterized by, include: The wiring assembly includes 12 arrayed terminals and a clamping unit. The clamping unit can simultaneously clamp and connect the 12 terminals and 12 external motor wires. Three of the terminals are provided with connectors for connecting to a test instrument. A mobile test assembly includes a movable slide plate and conductive units for contact conduction. The terminals slide against the working surface of the slide plate, and the conductive units are respectively connected to the working surface of the slide plate to conduct electricity through contact with the terminals. The relatively movable slide plate can drive the conductive unit to conduct different wiring terminals respectively, thereby realizing different circuit connections; The enclosure is used to enclose the wiring assembly and the mobile test assembly.

2. The dual-voltage conversion test fixture for a 12-lead motor according to claim 1, characterized in that, The terminals are arranged in a 3*4 array, with the terminals arranged longitudinally in 4 columns.

3. The dual-voltage conversion test fixture for a 12-lead motor according to claim 1, characterized in that, The conductive unit includes three horizontally arranged first metal guide plates, which are connected to the working surface of the slide plate. The first metal guide plates are equidistant from each other and can conduct two adjacent columns of the terminals. The slide plate can drive the first metal guide plates to conduct two adjacent columns of the three columns of terminals.

4. The dual-voltage conversion test fixture for a 12-lead motor according to claim 1, characterized in that, The conductive unit includes three horizontally arranged second metal guide plates and a third metal guide plate. The second and third metal guide plates are all connected to the working surface of the slide plate. The second metal guide plates are equidistant from each other. The third metal guide plate is electrically connected to each of the three second metal guide plates. The second metal guide plates can conduct electricity to all the terminals that are in contact with them. The slide plate can drive the second metal guide plates to conduct electricity to all the terminals in the third and fourth columns or all the terminals in the fourth column.

5. The dual-voltage conversion test fixture for a 12-lead motor according to claim 1, characterized in that, The clamping unit includes multiple wire clamps and plugs that are fixedly connected to the terminals. The plug includes a gate body that is slidably connected to the encapsulation box and a gate abutment. The gate abutment is fixedly connected to the gate body. The gate abutment and the wire clamp are arranged in a one-to-one correspondence. The gate abutment and the wire clamp form a clamping space for clamping the external wires of the motor.

6. The dual-voltage conversion test fixture for a 12-lead motor according to claim 5, characterized in that, The gate body is provided with a handle that is movably inserted into the encapsulation box, and the handle can drive the opening contact to move away from the clamp.

7. The dual-voltage conversion test fixture for a 12-lead motor according to claim 6, characterized in that, The gate body is equipped with a counterweight, which can drive the opening contact to approach the clamp and make relative contact.

8. The dual-voltage conversion test fixture for a 12-lead motor according to claim 1, characterized in that, The sliding plate is slidably engaged in the packaging box. A sliding handle is provided on the side of the sliding plate away from the conductive unit. One end of the sliding handle is fixedly connected to the sliding plate, and the other end of the sliding handle extends outside the packaging box.

9. The dual-voltage conversion test fixture for a 12-lead motor according to claim 5, characterized in that, The encapsulation box has 12 connection holes, and each connection hole corresponds to a wire clamp.

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