Motor frequency conversion module IPM detection auxiliary device and detection system

Abstract

The utility model belongs to IPM module detection technical field especially relates to a frequency conversion module IPM detection auxiliary device and detection system for motor, wherein frequency conversion module IPM detection auxiliary device for motor, include: base and set up in the support mechanism of base top surface, the support mechanism is configured as the support IPM module, drive assembly and a pair of clamping assembly are provided in the support mechanism, the clamping assembly is located in the both sides of support seat in the support mechanism, drive assembly is configured as the synchronous approach or away from support seat of two clamping assembly, when clamping assembly approaches support seat, from the opposite two sides of IPM module to its clamping, further realized from the clamping of IPM module to two opposite directions, ensure the stable clamping of IPM module, avoid the position of IPM module to shift.

Description

Technical Field

[0001] This utility model belongs to the field of IPM module testing technology, and in particular relates to an auxiliary device and testing system for testing IPM modules of motor inverter modules. Background Technology

[0002] Motors are important electromagnetic devices. IPM (Intelligent Power Module) motor modules have advantages such as simple structure, small size, light weight, low loss, high efficiency, and high power factor. They are mainly used in high-performance servo drive systems and DC motor replacements that require fast response, wide speed range, and accurate positioning. IPM motor modules often operate in extremely harsh environments, which makes motors more susceptible to damage, especially overload, short circuit, and phase loss. Therefore, testing IPM modules is very important. The IPM module on the motor has three terminals to connect to the variable frequency motor. During testing, a multimeter is used to check the positive and negative terminals of the main filter capacitor to determine the condition of the IPM module.

[0003] However, the current testing procedures lack a clamping mechanism for the motor IPM module, which leads to IPM module misalignment during the testing process.

[0004] Therefore, due to the technical problem that the IPM module cannot be stably clamped, causing the IPM module to shift during the testing process and affecting the accuracy of the test, it is necessary to design an auxiliary device and testing system for testing IPM modules of motor inverter modules.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one auxiliary device and testing system for testing IPM (Inverter Module) of motors.

[0007] In a first aspect, embodiments of this disclosure provide an auxiliary device for detecting IPM (Inverter Motor Module) of a motor, comprising: A base, and a support mechanism disposed on the top surface of the base; The support mechanism is configured to support the IPM module; The support mechanism is provided with a drive component and a pair of clamping components. The clamping components are located on both sides of the support base inside the support mechanism. The drive component is configured to drive the two clamping components to move closer to or away from the support base synchronously. When the clamping components move closer to the support base, they clamp the support base from opposite sides of the IPM module.

[0008] In one optional embodiment, the support mechanism includes: a bearing seat; The support seat is disposed on the top surface of the base; The top surface of the support seat is provided with a groove, and a horizontal plate is provided in the groove; The support base is disposed on the top surface of the horizontal plate, and the support base is adapted to support the IPM module; The driving component is disposed within the groove, and a portion of the clamping component is located within the groove, while a portion is located above the top surface of the groove.

[0009] In one alternative implementation, the drive assembly includes: a plunger and a sleeve; One end of the insertion rod is connected to the inner wall of the groove, and the other end is provided with an anti-detachment block; The insertion rod is inserted into the sleeve, and the insertion rod is slidably connected to the sleeve; The end of the insertion rod connected to the anti-detachment block is located inside the sleeve, one end of the sleeve is located inside the groove, and the other end of the sleeve extends out of the support seat through the side wall of the support seat. The sleeve has a pressure plate on its side wall that corresponds to the wedge plate in the clamping assembly, and the pressure plate is located in the groove.

[0010] In one alternative embodiment, a gripping block is provided at one end of the sleeve located outside the bearing seat.

[0011] In one alternative embodiment, the clamping assembly includes: a mounting plate disposed within a groove; The mounting plate has a wedge-shaped plate on the side near the pressure plate, and the side away from the pressure plate is connected to the traction plate; The inclined surface of the wedge plate is in contact with the corresponding pressure plate; The traction plate extends out of the bearing seat through the side wall of the bearing seat, and the traction plate is slidably connected to the side wall of the bearing seat; A spring is provided between the mounting plate and the inner wall of the groove; The portion of the traction plate extending out of the bearing seat is provided with a vertical connecting plate, and a push plate is provided near the top of the connecting plate, extending upwards toward the top surface of the groove; A card plate is connected to the push plate; When the pressure plate moves from the wide side to the narrow side of the wedge plate, the two wedge plates move closer to each other, causing the two clamping plates to move closer to and contact the side wall of the IPM module to clamp the IPM module.

[0012] In one alternative embodiment, the card plate is L-shaped, and a rubber plate is provided on the side of the card plate away from the push plate on the vertical part.

[0013] In one alternative embodiment, a column is provided on the side wall of the base, a multimeter is provided on the column, the multimeter is connected to a pair of probes, and the multimeter and the probes are connected by wires.

[0014] In one alternative embodiment, a crossbar is provided on the column, and a limit block is provided at the end of the crossbar away from the column.

[0015] In one alternative embodiment, the bottom surface of the support base is provided with at least two legs.

[0016] Secondly, embodiments of this disclosure also provide a detection system for a motor IPM module, comprising: The aforementioned motor inverter module IPM testing auxiliary device is used to clamp the IPM module.

[0017] The beneficial effects of this utility model are as follows: This motor inverter module IPM detection auxiliary device includes: a base, and a support mechanism disposed on the top surface of the base; the support mechanism is configured to support the IPM module; the support mechanism is provided with a drive component and a pair of clamping components, the clamping components are located on both sides of the support seat inside the support mechanism, the drive component is configured to drive the two clamping components to move synchronously closer to or away from the support seat, when the clamping components move closer to the support seat, they clamp the IPM module from opposite sides, thereby realizing clamping of the IPM module from two opposite directions, ensuring stable clamping of the IPM module and preventing the IPM module from shifting position.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an IPM testing auxiliary device for a motor provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of a support mechanism provided in an embodiment of the present disclosure; Figure 3 This is a schematic diagram of the structure of a driving component provided in an embodiment of this disclosure.

[0022] In the picture: 1. Base, 11. Column, 12. Multimeter, 13. Wire, 14. Test leads, 15. Horizontal bar, 16. Limit block, 17. Support leg; 2. Support mechanism; 21. Bearing seat; 22. Groove; 23. Horizontal plate; 24. Support seat; 3. Drive assembly, 31. Insert rod, 32. Anti-detachment block, 33. Sleeve, 34. Pressure plate, 35. Grip block; 4 Clamping assembly, 41 Mounting plate, 42 Wedge plate, 43 Traction plate, 44 Spring, 45 Connecting plate, 46 Push plate, 47 Clamping plate, 48 Rubber plate; 5IPM module. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0025] Motors are crucial electromagnetic devices. Intelligent Power Modules (IPMs) offer advantages such as simple structure, small size, light weight, low loss, high efficiency, and high power factor. They are primarily used in high-performance servo drive systems requiring fast response, wide speed range, and accurate positioning, as well as for replacing DC motors. IPMs often operate in extremely harsh environments, which makes motors more susceptible to damage, especially overload, short circuit, and phase loss. Therefore, testing IPMs is essential. The IPM module on the motor has three terminals connected to the variable frequency motor. During testing, a multimeter is used to check the positive and negative terminals of the main filter capacitor to determine the IPM module's condition. However, current testing methods lack clamping mechanisms for the IPM module, leading to module misalignment during testing.

[0026] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] like Figure 1 As shown, at least one disclosed embodiment provides an auxiliary device for testing an IPM (Inverter Motor Module) of a motor, including: a base 1, and a support mechanism 2 disposed on the top surface of the base 1; the support mechanism 2 is configured to support an IPM module 5; the support mechanism 2 is provided with a drive component 3 and a pair of clamping components 4, the clamping components 4 being located on both sides of a support seat 24 within the support mechanism 2, the drive component 3 being configured to drive the two clamping components 4 to synchronously approach or move away from the support seat 24, and when the clamping components 4 approach the support seat 24, clamping the IPM module 5 from opposite sides, thereby achieving clamping of the IPM module 5 from two opposite directions, ensuring stable clamping of the IPM module 5, and preventing the IPM module 5 from shifting position.

[0030] In this embodiment, the IPM module 5 is clamped simultaneously from two opposing directions, which ensures the clamping is stable and secure. This prevents the IPM module 5 from shifting position during the detection process, ensuring the accuracy of the detection. Furthermore, the clamping component 4 can move to adapt to IPM modules 5 of different sizes, meeting more detection scenarios.

[0031] like Figure 2 As shown, in an optional embodiment, the support mechanism 2 includes: a bearing seat 21; the bearing seat 21 is disposed on the top surface of the base 1; a groove 22 is formed on the top surface of the bearing seat 21, and a horizontal plate 23 is disposed in the groove 22; a support seat 24 is disposed on the top surface of the horizontal plate 23, and the support seat 24 is adapted to support the IPM module 5; the drive assembly 3 is disposed in the groove 22, and a portion of the clamping assembly 4 is located in the groove 22, and a portion is located above the top surface of the groove 22.

[0032] In this embodiment, the horizontal plate 23 is located above the sleeve 33 to prevent the support seat 24 from affecting the movement of the wedge plate 42.

[0033] In this embodiment, the top surface of the support base 24 is smaller than the size of the IPM module 5. For example, the area of ​​the top surface of the support base 24 is smaller than the bottom area of ​​the IPM module 5, so that the edge of the IPM module 5 can extend from the edge of the support base 24, making it easier to contact the side wall of the IPM module 5 when clamped.

[0034] like Figure 3 As shown, in an optional embodiment, the driving assembly 3 includes: a rod 31 and a sleeve 33; one end of the rod 31 is connected to the inner wall of the groove 22, and the other end is provided with an anti-detachment block 32, the size of which is larger than the size of the end of the rod 31; the rod 31 passes through the sleeve 33, and the rod 31 is slidably connected to the sleeve 33; one end of the rod 31 connected with the anti-detachment block 32 is located inside the sleeve 33, one end of the sleeve 33 is located inside the groove 22, and the other end of the sleeve 33 extends out of the support seat 21 through the side wall of the support seat 21; a pressure plate 34 corresponding to the wedge plate 42 in the clamping assembly 4 is provided on the side wall of the sleeve 33, and the pressure plate 34 is located inside the groove 22.

[0035] In this embodiment, the operator can manually move the sleeve 33, which in turn moves the pressure plate 34.

[0036] In this embodiment, the size of the position where the insertion rod 31 enters the sleeve 33 is smaller than the size of the anti-detachment block 32. For example, the cross-sectional area of ​​the position where the insertion rod 31 enters the sleeve 33 is smaller than the cross-sectional area of ​​the anti-detachment block 32, so as to prevent the anti-detachment block 32 from detaching from the sleeve 33 and prevent the insertion rod 31 from detaching from the sleeve 33.

[0037] In one alternative embodiment, a gripping block 35 is provided at one end of the sleeve 33 outside the support 21.

[0038] In this embodiment, the grip block 35 facilitates the operator to pull the sleeve 33 to move.

[0039] like Figure 1 and Figure 3 As shown, in an optional embodiment, the clamping assembly 4 includes: a mounting plate 41 disposed within the groove 22; a wedge-shaped plate 42 is disposed on the side of the mounting plate 41 near the pressure plate 34, and the side away from the pressure plate 34 is connected to a traction plate 43; the inclined surface of the wedge-shaped plate 42 contacts the corresponding pressure plate 34; the traction plate 43 extends through the side wall of the bearing seat 21 and extends out of the bearing seat 21, and the traction plate 43 is slidably connected to the side wall of the bearing seat 21; the mounting plate 41 and the groove A spring 44 is provided between the inner walls of the groove 22; a vertical connecting plate 45 is provided on the part of the traction plate 43 that extends out of the bearing seat 21, and a push plate 46 is provided near the top of the connecting plate 45, and the push plate 46 extends above the top surface of the groove 22; a clamping plate 47 is connected to the push plate 46; when the pressing plate 34 moves from the wide side to the narrow side of the wedge plate 42, the two wedge plates 42 move closer to each other, causing the two clamping plates 47 to move closer to and contact the side wall of the IPM module 5, so as to clamp the IPM module 5.

[0040] In this embodiment, the movement of the pressure plate 34 on the inclined surface of the wedge plate 42 drives the mounting plate 41 to move, which in turn drives the clamping plate 47 to move through the traction plate 43, the connecting plate 45 and the push plate 46.

[0041] In this embodiment, in the initial state, that is, when the IPM module 5 has not yet been placed on the support base 24, the distance between the two clamping plates 47 is less than the length of the IPM module 5, and the spring 44 is in a balanced state or a compressed state. At this time, the pressure plate 34 is close to the narrow side of the wedge plate 42. At this time, the gripping block 35 can be held and the sleeve 33 can be pulled outward. The pressure plate 34 moves from the narrow side to the wide side of the wedge plate 42, so that the two mounting plates 41 move away from each other, compressing the spring 44 and causing the two clamping plates 47 to move away from each other. Then the IPM module 5 is placed on the support base 24. At this time, the gripping block 35 can be released, and the spring 44 restores its deformation, causing the two mounting plates 41 to move closer, causing the two clamping plates 47 to move closer and contact the side wall of the IPM module 5 to complete the clamping of the IPM module 5.

[0042] In this embodiment, when it is necessary to release the IPM module 5, the gripping block 35 is held and the sleeve 33 is pulled outward. The pressure plate 34 moves from the narrow side to the wide side of the wedge plate 42, so that the two mounting plates 41 are moved away from each other, the IPM module 5 is released, and then the IPM module 5 is removed. After removal, the gripping block 35 is released so that the mounting plates 41 are reset.

[0043] like Figure 1 As shown, in an optional embodiment, the card plate 47 is L-shaped, and a rubber plate 48 is provided on the side of the vertical portion of the card plate 47 away from the push plate 46.

[0044] In this embodiment, the rubber plate 48 can prevent damage to the IPM module 5 when clamping it.

[0045] like Figure 1 As shown, in one optional embodiment, a column 11 is provided on the side wall of the base 1, a multimeter 12 is provided on the column 11, the multimeter 12 is connected to a pair of probes 14, and the multimeter 12 and the probes 14 are connected by a wire 13.

[0046] In this embodiment, the IPM module 5 can be tested using probe 14, and then the reading can be taken using multimeter 12.

[0047] like Figure 1 As shown, in one optional embodiment, a crossbar 15 is provided on the column 11, and a limit block 16 is provided at the end of the crossbar 15 away from the column 11.

[0048] In this embodiment, when the multimeter 12 is not in use, the wire 13 can be wrapped around the crossbar 15 to prevent the probe 14 from falling off, and the limiting block 16 can prevent the wire 13 wrapped around the crossbar 15 from becoming loose.

[0049] like Figure 1 As shown, in one optional embodiment, the bottom surface of the support base 24 is provided with at least two legs 17.

[0050] In this embodiment, the support legs 17 can be four in number, which facilitates the stable placement of the base 1.

[0051] At least one other disclosed embodiment also provides a detection system for a motor IPM module 5, comprising: clamping the IPM module 5 using the above-described motor inverter module IPM detection auxiliary device.

[0052] In this embodiment, the reading of multimeter 12 can be input into a host computer or other computer for further processing.

[0053] In summary, the IPM (Inverter Module) detection auxiliary device for this motor includes: a base 1 and a support mechanism 2 disposed on the top surface of the base 1; the support mechanism 2 is configured to support the IPM module 5; the support mechanism 2 is provided with a drive component 3 and a pair of clamping components 4, the clamping components 4 being located on both sides of the support seat 24 inside the support mechanism 2; the drive component 3 is configured to drive the two clamping components 4 to move synchronously closer to or away from the support seat 24; when the clamping components 4 approach the support seat 24, they clamp the IPM module 5 from opposite sides, thereby achieving clamping of the IPM module 5 from two opposite directions, ensuring stable clamping of the IPM module 5 and preventing the IPM module 5 from shifting position.

[0054] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0056] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0057] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An auxiliary device for testing the IPM (Inverter Motor Module) of a motor, characterized in that, include: A base (1) and a support mechanism (2) disposed on the top surface of the base (1); The support mechanism (2) is configured to support the IPM module (5); The support mechanism (2) is provided with a drive component (3) and a pair of clamping components (4). The clamping components (4) are located on both sides of the support base (24) inside the support mechanism (2). The drive component (3) is configured to drive the two clamping components (4) to move closer to or further away from the support base (24) synchronously. When the clamping components (4) move closer to the support base (24), they are clamped from opposite sides of the IPM module (5).

2. The auxiliary device for IPM testing of motor inverter modules as described in claim 1, characterized in that, The support mechanism (2) includes: a bearing seat (21); The support seat (21) is disposed on the top surface of the base (1); The top surface of the support base (21) is provided with a groove (22), and a horizontal plate (23) is provided in the groove (22). The support base (24) is disposed on the top surface of the horizontal plate (23), and the support base (24) is adapted to support the IPM module (5). The drive assembly (3) is disposed in the groove (22), and part of the clamping assembly (4) is located in the groove (22) and part is located above the top surface of the groove (22).

3. The auxiliary device for IPM testing of frequency converter modules for motors as described in claim 2, characterized in that, The drive assembly (3) includes: a plug (31) and a sleeve (33); One end of the insertion rod (31) is connected to the inner wall of the groove (22), and the other end is provided with an anti-detachment block (32). The insertion rod (31) passes through the sleeve (33), and the insertion rod (31) is slidably connected to the sleeve (33); The end of the insert (31) connected to the anti-detachment block (32) is located inside the sleeve (33), one end of the sleeve (33) is located inside the groove (22), and the other end of the sleeve (33) extends out of the support seat (21) through the side wall of the support seat (21). The sleeve (33) has a pressure plate (34) on its side wall that corresponds to the wedge plate (42) inside the clamping assembly (4), and the pressure plate (34) is located in the groove (22).

4. The auxiliary device for IPM testing of frequency converter modules for motors as described in claim 3, characterized in that, The sleeve (33) is provided with a gripping block (35) at one end outside the bearing seat (21).

5. The auxiliary device for IPM testing of frequency converter modules for motors as described in claim 3, characterized in that, The clamping assembly (4) includes: a mounting plate (41) disposed in the groove (22); The mounting plate (41) has a wedge plate (42) on the side near the pressure plate (34), and the side away from the pressure plate (34) is connected to the traction plate (43); The inclined surface of the wedge plate (42) is in contact with the corresponding pressure plate (34); The traction plate (43) extends through the side wall of the bearing seat (21) and is slidably connected to the side wall of the bearing seat (21); A spring (44) is provided between the mounting plate (41) and the inner wall of the groove (22); The portion of the traction plate (43) extending out of the bearing seat (21) is provided with a vertical connecting plate (45), and a push plate (46) is provided near the top of the connecting plate (45), the push plate (46) extending above the top surface of the groove (22); A card plate (47) is connected to the push plate (46); When the pressure plate (34) moves from the wide side to the narrow side of the wedge plate (42), the two wedge plates (42) move closer to each other, causing the two clamping plates (47) to move closer to and contact the side wall of the IPM module (5) to clamp the IPM module (5).

6. The auxiliary device for IPM testing of frequency converter modules for motors as described in claim 5, characterized in that, The card plate (47) is L-shaped, and a rubber plate (48) is provided on the side of the vertical part of the card plate (47) away from the push plate (46).

7. The auxiliary device for IPM testing of frequency converter modules for motors as described in claim 1, characterized in that, A column (11) is provided on the side wall of the base (1), and a multimeter (12) is provided on the column (11). The multimeter (12) is connected to a pair of probes (14), and the multimeter (12) and the probes (14) are connected by a wire (13).

8. The auxiliary device for IPM testing of frequency converter modules for motors as described in claim 7, characterized in that, A crossbar (15) is provided on the column (11), and a limit block (16) is provided at the end of the crossbar (15) away from the column (11).

9. The auxiliary device for IPM testing of frequency converter modules for motors as described in claim 1, characterized in that, The bottom surface of the support base (24) is provided with at least two legs (17).

10. A detection system, characterized in that, include: The IPM module (5) is clamped using the IPM testing auxiliary device for motor inverter modules as described in any one of claims 1-9.

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