Crimping type power module and converter
By arranging components along the height of the cabinet in the crimp-type power module, forming a three-phase integrated rate string, and using maintenance correction tooling to replace the device, the problem of maintenance difficulty in the existing technology is solved, and a simpler and more efficient maintenance process is achieved.
Patent Information
- Application Number
- CN202420571312.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The existing crimp-type power modules are difficult during maintenance, and the faulty phase module needs to be removed for device replacement, which increases the complexity and difficulty of maintenance.
A crimp-type power module is designed, in which components are arranged in sequence along the height direction of the cabinet, forming a three-phase integrated rate string, and slots are provided on the side wall of the cabinet for insertion of maintenance and correction tools, allowing the replacement of damaged devices without removing the entire faulty phase module.
Through this design, maintenance is reduced, the step of removing the faulty phase module is avoided, and the process of replacing damaged devices is simplified.
Smart Images
Figure CN222547347U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of converters, in particular to a crimping power module and a converter. Background Art
[0002] As the power level of the converter increases significantly, press-fit power modules are gaining attention, such as the Integrated Gate-Commutated Thyristor (IGCT), the Insulated Gate Bipolar Transistor (IGBT) or the Injection Enhanced Gate Transistor (IEGT).
[0003] The three-phase crimping power module is integrated in the cabinet 01 and usually includes three phase modules, such as Figure 1 A phase module 021, B phase module 022 and C phase module 023. Each phase module includes two groups of power strings, and the three phase module groups of the three-phase crimping power module are arranged in sequence along the height direction of the cabinet 01, and the power strings of each phase module group are arranged along the lateral direction of the cabinet 01, which is perpendicular to the height direction of the cabinet 01.
[0004] If a component in a power string in a phase module is damaged, the faulty phase module needs to be removed and the component replaced. During the replacement process, some circuits and water channels need to be cut off, which increases the difficulty of maintenance.
[0005] Therefore, how to provide a crimp-type power module to reduce the difficulty of maintenance is a technical problem that technical personnel need to solve urgently. Utility Model Content
[0006] In view of this, the utility model provides a crimping type power module to reduce the difficulty of maintenance. In addition, the utility model also provides a converter having the crimping type power module.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A crimping power module, comprising:
[0009] A three-phase integrated power string, wherein the three-phase integrated power string is installed in a cabinet, and each three-phase integrated power string comprises a first phase module group, a second phase module group and a third phase module group arranged in sequence along the height direction of the cabinet;
[0010] The components of the first phase module group, the second phase module group and the third phase module group are arranged in sequence along the height direction of the cabinet;
[0011] The side wall of the cabinet is provided with a slot for inserting a maintenance and correction tool.
[0012] Preferably, the above-mentioned crimping type power module further includes:
[0013] A pressure device, the pressure device is used to provide a crimping force to the devices in the three-phase integrated power string;
[0014] The bottom of the three-phase integrated power string is pressed onto the bottom surface of the cabinet through the pressure device.
[0015] Preferably, in the above-mentioned crimp-type power module, the pressure device is a hydraulic device for adjusting the pre-tightening force of the three-phase integrated power string between the top surface and the bottom surface of the cabinet.
[0016] Preferably, the above-mentioned crimping type power module further includes:
[0017] A water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are both arranged inside the cabinet;
[0018] The inlet of the radiator of the three-phase integrated power string is connected to the water inlet pipe, and the outlet of the radiator is connected to the water outlet pipe.
[0019] Preferably, the above-mentioned crimping type power module further includes:
[0020] A water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are both arranged inside the cabinet;
[0021] There are at least two three-phase integrated power strings, and the radiator of one of the three-phase integrated power strings is connected to the water inlet pipe, the radiator of the other three-phase integrated power string is connected to the water outlet pipe, and the radiators of the two three-phase integrated power strings are connected in series.
[0022] Preferably, in the above-mentioned crimping type power module, the maintenance and correction tooling comprises:
[0023] A correction device, the correction device comprising a clamping surface for plugging into the slot and a correction surface for fitting into the three-phase integrated power string;
[0024] A maintenance tool can be inserted into the slot and can support the components.
[0025] Preferably, in the above-mentioned crimping type power module, the two opposite side walls of the cabinet are provided with the slots, and the maintenance tool can be inserted into the slots of the two side walls of the cabinet;
[0026] Furthermore, the maintenance tool has a first avoidance space for avoiding the water inlet pipe and the water outlet pipe, and has a second avoidance space for avoiding the components in the components.
[0027] Preferably, in the above-mentioned crimping power module, the outer contour of the heat sink of the component is stepped, including a first section and a second section, and the width of the first section is greater than the width of the second section, and the connection between the first section and the second section forms a stepped structure;
[0028] And the first section is used to fit with the maintenance tool.
[0029] Preferably, in the above-mentioned crimped power module, the structures of the first phase module group, the second phase module group and the third phase module group are the same, and the components all include:
[0030] An insulating member, a first heat sink, a first press-contact type power device, a second heat sink, a second press-contact type power device and a third heat sink.
[0031] Preferably, in the above-mentioned crimp-type power module, a plurality of the slots are evenly arranged on the side wall of the cabinet along the height direction of the cabinet, and the widths of the slots along the height direction of the cabinet are the same.
[0032] Preferably, in the above-mentioned crimp-type power module, a plurality of side panels are arranged on the cabinet along the height direction, and the slots are formed between adjacent side panels;
[0033] The surfaces opposite to the adjacent side plates are provided with slide grooves, and the slide grooves are used for sliding connection with the maintenance and correction tooling.
[0034] Preferably, in the above-mentioned crimping type power module, the sliding groove is a V-shaped groove, a rectangular groove or a tooth groove.
[0035] Preferably, in the above-mentioned press-fit power module, the press-fit power device of the press-fit power module is an IGCT device, an IGBT device or an IEGT device.
[0036] A converter includes a crimping type power module, wherein the crimping type power module is the crimping type power module described in any one of the above items.
[0037] The utility model discloses a crimping type power module, which is formed by stacking components along the height direction of the cabinet, and forming a first phase module group, a second phase module group and a third phase module group arranged along the height direction, thereby forming a three-phase integrated power string extending along the height direction of the cabinet. When there are damaged components in the three-phase integrated power string, the maintenance tool of the maintenance correction tool can be inserted into the slot, and the damaged component can be pulled out from the side of the cabinet. The maintenance tool is used to support the undamaged components in the three-phase integrated power string, and after the damaged component is replaced, the maintenance tool is pulled out to complete the replacement of the damaged component, without taking out the entire faulty phase module, thereby reducing the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0039] Figure 1 It is a structural schematic diagram of a crimping type power module disclosed in the prior art;
[0040] Figure 2 This is a structural schematic diagram of the crimping type power module disclosed in the embodiment of the present application in a front view direction;
[0041] Figure 3 for Figure 2 A front view of
[0042] Figure 4 This is a schematic diagram of the structure of the crimp-type power module disclosed in the embodiment of the present application, viewed from the rear;
[0043] Figure 5 for Figure 4 A front view of
[0044] Figure 6 This is a schematic diagram of the first structure of the side panel disclosed in the embodiments of the present application;
[0045] Figure 7 This is a schematic diagram of the second structure of the side panel disclosed in the embodiments of the present application;
[0046] Figure 8 This is a third structural schematic diagram of the side panel disclosed in the embodiments of the present application;
[0047] Fig. 9 This is a fourth structural schematic diagram of the side panel disclosed in the embodiments of the present application;
[0048] Fig.10 It is a front view of a first heat sink of one phase disclosed in an embodiment of the present application;
[0049] Fig.11 This is a first cycle diagram of the radiator disclosed in the embodiment of the present application;
[0050] Fig.12 It is a second cycle diagram of the radiator disclosed in the embodiment of the present application;
[0051] Fig.13 It is a structural schematic diagram of the maintenance tool disclosed in the embodiment of the present application;
[0052] Fig.14 A process diagram of replacing components of a crimp-type power module disclosed in an embodiment of the present application;
[0053] Fig.15 A schematic diagram of the plugging process of the maintenance tool disclosed in the embodiment of the present application;
[0054] Fig.16 It is a front view of the correction device disclosed in the embodiment of the present application;
[0055] Fig.17 This is a correction state diagram of the crimped power module disclosed in the embodiment of the present application. DETAILED DESCRIPTION
[0056] The utility model discloses a crimping type power module, which reduces the difficulty of maintenance. In addition, the utility model also discloses a converter with the crimping type power module.
[0057] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0058] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.
[0059] like Figures 2 to 5 As shown, the present application discloses a crimping type power module, comprising: a three-phase integrated power string and a cabinet 1.
[0060] The three-phase integrated power string is integrated in the cabinet 1, and the shape, size and material of the cabinet 1 can be set according to different needs. In some embodiments, the side wall of the cabinet 1 has a slot 12, and the slot 12 can be used to insert a maintenance correction tool.
[0061] The three-phase integrated power string in the present application includes a first phase module group 21, a second phase module group 22 and a third phase module group 23 arranged in sequence along the height direction of the cabinet 1. It can be understood that the first phase module group 21, the second phase module group 22 and the third phase module group 23 are connected in sequence along the height direction of the cabinet 1 to form the three-phase integrated power string in the present application.
[0062] The first phase module group 21 , the second phase module group 22 and the third phase module group 23 all include components, and these components are arranged in sequence along the height direction of the cabinet 1 .
[0063] It can be understood that the components in the present application are arranged in sequence along the height direction of the cabinet 1 and respectively form a first phase module group 21, a second phase module group 22 and a third phase module group 23.
[0064] In the present application, components are stacked and arranged along the height direction of the cabinet 1, and a first phase module group 21, a second phase module group 22 and a third phase module group 23 are formed along the height direction, thereby forming a three-phase integrated power string extending along the height direction of the cabinet 1. When there are damaged components in the three-phase integrated power string, the maintenance tool of the maintenance correction tool can be inserted into the slot 12, and the damaged component can be pulled out from the side of the cabinet 1. The undamaged components in the three-phase integrated power string can be supported by the maintenance tool, and after the damaged component is replaced, the maintenance tool can be pulled out to complete the replacement of the damaged component without taking out the entire faulty phase module, thereby reducing the difficulty of maintenance.
[0065] It should be noted that the components in this application include devices.
[0066] The compression-type power module in some embodiments further includes a pressure device 3 .
[0067] Specifically, the pressure device 3 is used to provide a crimping force to the devices in the three-phase integrated power string; the bottom of the three-phase integrated power string is crimped to the bottom surface of the cabinet 1 through the pressure device 3 .
[0068] The pressure device 3 provides a crimping force to the devices in the three-phase integrated power string to ensure that the crimped devices can achieve rated performance.
[0069] The pressure device 3 in the present application is arranged at the bottom of the three-phase integrated power string, rather than the top of the three-phase integrated power string, so that the pressure can be transmitted from the bottom to the top to achieve crimping, without the operator having to go to the top of the cabinet 1 to operate, which helps to reduce the difficulty of operation.
[0070] In some embodiments, the pressure device 3 is a hydraulic device for adjusting the pre-tightening force of the three-phase integrated power string between the top surface and the bottom surface of the cabinet 1 .
[0071] A hydraulic device is used as the pressure device 3, and the pressure provided by the hydraulic pressure is used to change the pre-tightening force of the three-phase integrated power string between the top and bottom surfaces of the cabinet 1. When the pressure of the pressure device 3 squeezing the three-phase integrated power string is different, the crimping force of the components of the three-phase integrated power string is different.
[0072] In some embodiments, the pressure device 3 may also be a gear transmission device and an ejector rod, wherein the ejector rod is telescopically installed between the three-phase integrated power string and the bottom surface of the cabinet 1; the gear transmission device is used to drive the extension and retraction of the ejector rod. For example, the ejector rod is installed on the driven wheel, and the driven wheel is rotated to rotate the driven wheel, thereby realizing the extension and retraction process of the ejector rod. Since the extension and retraction distance of the ejector rod is small, the offset position of the ejector rod can be ignored.
[0073] On the basis of the above technical solution, the structures of the first phase module group 21, the second phase module group 22 and the third phase module group 23 are the same, and the components all include: an insulating member, a first heat sink, a first device, a second heat sink, a second device and a third heat sink arranged in sequence along the height direction of the cabinet 1. It should be noted that the components in this application can also be arranged according to different needs, and are all within the scope of protection. The following only provides a specific method.
[0074] See also Figure 3 As shown, the first phase module 21 includes a phase insulating member 211 , a phase first heat sink 212 , a phase first press-contact type power device 213 , a phase second heat sink 214 , a phase second press-contact type power device 215 and a phase third heat sink 216 .
[0075] The second phase module 22 includes a two-phase insulating member 221 , a two-phase first heat sink 222 , a two-phase first press-contact type power device 223 , a two-phase second heat sink 224 , a two-phase second press-contact type power device 225 and a two-phase third heat sink 226 .
[0076] The third phase module 23 includes a three-phase insulating member 231 , a three-phase first heat sink 232 , a three-phase first press-contact type power device 233 , a three-phase second heat sink 234 , a three-phase second press-contact type power device 235 and a three-phase third heat sink 236 .
[0077] It should be noted that the one-phase insulating member 211 , the two-phase insulating member 221 and the three-phase insulating member 231 have the same structure and size. For the insulating members, reference may be made to the structure of existing insulating members.
[0078] The one-phase first press-contact type power device 213, the one-phase second press-contact type power device 215, the two-phase first press-contact type power device 223, the two-phase second press-contact type power device 225, the three-phase first press-contact type power device 233 and the three-phase second press-contact type power device 235 include but are not limited to IGCT devices, IGBT devices or IEGT devices.
[0079] The one-phase first radiator 212, the one-phase second radiator 214, the one-phase third radiator 216, the two-phase first radiator 222, the two-phase second radiator 224, the two-phase third radiator 226, the three-phase first radiator 232, the three-phase second radiator 234 and the three-phase third radiator 236 have the same structure and size.
[0080] For the specific structure of the radiator, please refer to Fig.10 The structure of the one-phase first radiator 212 is shown in FIG. 2 , and the one-phase first radiator 212 includes a water inlet 2122 and a water outlet 2121 .
[0081] The compression-type power module disclosed in the present application further includes a first tube 41 and a second tube 42 .
[0082] The first pipe 41 and the second pipe 42 are arranged inside the cabinet 1 and can be directly connected to the radiator without additionally providing a single-phase branch water pipe to guide the medium to the outside of the cabinet 1 .
[0083] In some embodiments, the crimp-type power module includes at least two three-phase integrated power strings. The number of three-phase integrated power strings can be set according to different needs and are all within the protection range.
[0084] It should be noted that the appendix in this application Figures 2 to 5 In the description, only two three-phase integrated power strings are arranged in the cabinet 1 as an example, and other numbers of three-phase integrated power strings can be integrated in the cabinet 1.
[0085] In the above-disclosed first pipe 41 and second pipe 42, one is a water inlet pipe and the other is a water outlet pipe. Take the first pipe 41 as the water outlet pipe, the second pipe 42 as the water inlet pipe, and a three-phase integrated power string connecting the first pipe 41 and the second pipe 42 as an example for explanation:
[0086] The outlet and the inlet of the radiator of the three-phase integrated power string are respectively connected to the first tube 41 and the second tube 42, so that the radiator and the first tube 41 and the second tube 42 form a liquid circulation to complete the heat dissipation circulation function of the radiator.
[0087] In some embodiments, two or more heat sinks of three-phase integrated power strings can be connected in series and then connected to the first tube 41 and the second tube 42, so as to form a circulation path of the first tube 41, the heat sink of the three-phase integrated power string, the heat sink of another three-phase integrated power string, the second tube 42 and the first tube 41.
[0088] It should be noted that, according to different needs, the first pipe 41 can be set as a water outlet pipe, and the second pipe 42 can be set as a water inlet pipe. Fig.11 As shown; the first tube 41 is set as a water inlet pipe, and the second tube 42 is set as a water outlet pipe, as shown Fig.12 shown.
[0089] See also Figure 3 As shown, a plurality of slots 12 are evenly arranged on the side wall of the cabinet 1 along the height direction of the cabinet 1 , and the widths of the slots 12 along the height direction of the cabinet 1 are the same. Figure 3 The sizes of the devices in the slots 12 are the same, so the height positions of the slots 12 can correspond to the height positions of the devices one by one and be flush.
[0090] The slot 12 may be a groove structure processed on the side wall of the cabinet 1 , or a plurality of side panels 11 may be provided on the side wall of the cabinet 1 , with the slot 12 formed between adjacent side panels 11 .
[0091] In some embodiments, the side edge forming the slot 12 has a slide groove. It should be noted that the side edge of the slot 12 can be the opposite side edge when the groove structure is processed on the side wall of the cabinet 1, or it can be Figure 3 The surface 111 of the middle side plate 11 .
[0092] Combination Figures 6 to 9 As shown, the shape of the slide groove includes but is not limited to a V-shaped groove, a rectangular groove or a tooth groove. Figure 7 Waveform teeth or Fig. 9 Rectangular tooth groove.
[0093] A slide groove is provided on the side of the slot 12, which can be used to maintain the sliding connection of the correction tool.
[0094] The slide structure is adopted. During the component replacement and maintenance process, the maintenance and correction tooling is placed in the corresponding groove to provide support for the components above. At the same time, the shape of the slide can prevent the maintenance and correction tooling from shifting, thereby preventing the components of the non-fault phase from shifting.
[0095] It should be noted that two opposite side walls of the cabinet 1 are both provided with slots 12 .
[0096] Combination Fig.13 and Fig.16 As shown, the maintenance and correction tool includes: a correction device 6 and a maintenance tool 5.
[0097] The correction device 6 includes a snap-in surface 61 for plugging into the slot 12 and a correction surface 62 for fitting into the three-phase integrated power string.
[0098] Combination Fig.17 As shown, the number of the correction devices 6 can be set according to different needs. The correction device 6 can prevent the three-phase integrated power string from tilting, and avoid the stacking of the three-phase integrated power string from being offset, uneven crimping pressure or eccentricity. In addition, the slots 12 on the left and right sides of the cabinet 1 are used to place the correction device 6. The correction device 6 can ensure that the power string of each phase is not offset, and the correction device is removed after the crimping is completed.
[0099] The maintenance tool 5 can be inserted into the slot 12 and can support components. If the components are damaged, the maintenance tool 5 can support the heat sink.
[0100] The maintenance tool 5 includes a first avoidance space 51 and a second avoidance space 52. In some embodiments, the maintenance tool 5 can be a plate, and a plurality of U-shaped grooves are provided on the plate to respectively form the first avoidance space 51 and the second avoidance space 52. There are two second avoidance spaces 52, which are used to avoid the first tube 41 and the second tube 42 respectively.
[0101] There is at least one first avoidance space 51 for avoiding the components of the three-phase integrated power string. In some embodiments, multiple first avoidance spaces 51 may be provided on the maintenance tool 5 to avoid multiple components of the three-phase integrated power string in the cabinet 1.
[0102] Combination Fig.14 and Fig.15 As shown, the crimp-type power module has two three-phase integrated power strings. When a device in one of the three-phase integrated power strings is damaged and needs to be replaced, the maintenance tool 5 is inserted into the cabinet 1 from the front view direction of the cabinet 1, and the two ends of the maintenance tool 5 are respectively inserted into the slots 12.
[0103] During the insertion process of the maintenance tool 5, the first avoidance space 51 avoids the damaged device, the second avoidance space 52 avoids the first tube 41 and the second tube 42, and the maintenance tool 5 supports the radiator above, so that the damaged device can be pulled out of the cabinet 1 to complete the replacement of the device.
[0104] See also Fig.15 Taking the structure of supporting a first-phase radiator 212 as an example, in order to facilitate supporting the radiator, the outer contour of the first-phase radiator 212 can be set to a step shape, and include a first section and a second section, and the width of the first section is greater than the width of the second section, and the connection between the first section and the second section forms a step structure.
[0105] During the insertion of the maintenance tool 5 , the first avoidance space 51 is easily abutted against the edge of the first section, thereby supporting the first heat sink 212 of one phase.
[0106] It should be noted that when there is a demand for higher power levels, the above design can be used to obtain a standard cabinet of crimped power modules integrated in the cabinet, and cabinets can be combined through expansion to increase the power level. For example, two cabinets can form an NPC / H-bridge five-level cabinet, and multiple cabinets can form a multi-level cascade cabinet, which can be modified according to needs.
[0107] It is worth noting that the above design is only an example, and the focus is on the integration of the three-phase integrated power string and the cabinet 1, the layout of components, assembly and maintenance methods, etc. In addition, the three-phase integrated power string part and the frame, and the frame and the cabinet in the crimped power module separated from the cabinet 1 are basically insulated. The frame and the cabinet of the crimped power module integrated in the cabinet 1 are integrated, and the connection part between the three-phase integrated power string and the cabinet needs to be reinforced with insulation, that is, the electrical clearance and creepage distance between the power string and the frame / cabinet are increased to ensure that the safety design is met.
[0108] The crimped power module in this application eliminates the need for operating a module assembly machine, thus reducing assembly difficulty; facilitates stress testing of the entire machine, thus reducing R&D difficulty; eliminates the need for single-phase module branch water pipes, and directly installs the main water pipe in the cabinet, thus reducing costs while also reducing system volume; standard cabinet design shortens the development cycle; and when a device is damaged, it can be maintained through maintenance tools, thus reducing maintenance difficulty.
[0109] The crimp-type power module in the present application includes but is not limited to a three-phase IGCT module or a three-phase IGBT module.
[0110] In addition, the present application also discloses a converter, including a crimped power module, wherein the crimped power module is the crimped power module disclosed in the above embodiment. Therefore, the converter having the crimped power module also has all the above technical effects, which will not be repeated here one by one.
[0111] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0112] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A crimping type power module, characterized in that: include: A three-phase integrated power string, wherein the three-phase integrated power string is installed in a cabinet, and each three-phase integrated power string comprises a first phase module group, a second phase module group and a third phase module group arranged in sequence along the height direction of the cabinet; The components of the first phase module group, the second phase module group and the third phase module group are arranged in sequence along the height direction of the cabinet; The side wall of the cabinet is provided with a slot for inserting a maintenance and correction tool.
2. The crimping type power module according to claim 1, characterized in that: Also includes: A pressure device, the pressure device is used to provide a crimping force to the devices in the three-phase integrated power string; The bottom of the three-phase integrated power string is pressed onto the bottom surface of the cabinet through the pressure device.
3. The crimping type power module according to claim 2, characterized in that: The pressure device is a hydraulic device for adjusting the pre-tightening force of the three-phase integrated power string between the top surface and the bottom surface of the cabinet.
4. The crimp-type power module according to any one of claims 1 to 3, characterized in that: Also includes: A water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are both arranged inside the cabinet; The inlet of the radiator of the three-phase integrated power string is connected to the water inlet pipe, and the outlet of the radiator is connected to the water outlet pipe.
5. The crimp-type power module according to any one of claims 1 to 3, characterized in that: Also includes: A water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are both arranged inside the cabinet; There are at least two three-phase integrated power strings, and the radiator of one of the three-phase integrated power strings is connected to the water inlet pipe, the radiator of the other three-phase integrated power string is connected to the water outlet pipe, and the radiators of the two three-phase integrated power strings are connected in series.
6. The crimping type power module according to claim 4, characterized in that: The maintenance and correction tooling includes: A correction device, the correction device comprising a card connection surface for plugging into the slot and a correction surface for fitting into the three-phase integrated power string; A maintenance tool can be inserted into the slot and can support the components.
7. The crimping type power module according to claim 6, characterized in that: The two opposite side walls of the cabinet are both provided with the slots, and the maintenance tool can be inserted into the slots of the two side walls of the cabinet; Furthermore, the maintenance tool has a first avoidance space for avoiding the water inlet pipe and the water outlet pipe, and has a second avoidance space for avoiding the components in the components.
8. The crimping type power module according to claim 7, characterized in that: The outer contour of the heat sink of the component is in a step shape, including a first section and a second section, and the width of the first section is greater than the width of the second section, and a step structure is formed at the connection between the first section and the second section; And the first section is used to fit with the maintenance tool.
9. The crimp-type power module according to any one of claims 1 to 3, characterized in that: The structures of the first phase module group, the second phase module group and the third phase module group are all the same, and the components all include: An insulating member, a first heat sink, a first press-contact type power device, a second heat sink, a second press-contact type power device and a third heat sink.
10. The crimp-type power module according to any one of claims 1 to 3, characterized in that: A plurality of the slots are evenly arranged on the side wall of the cabinet along the height direction of the cabinet, and the slots have the same width along the height direction of the cabinet.
11. The crimp-type power module according to any one of claims 1 to 3, characterized in that: A plurality of side panels are arranged on the cabinet along the height direction, and the slots are formed between adjacent side panels; The surfaces opposite to the adjacent side plates are provided with slide grooves, and the slide grooves are used for sliding connection with the maintenance and correction tooling.
12. The crimp-type power module according to claim 11, characterized in that: The slide groove is a V-shaped groove, a rectangular groove or a tooth groove.
13. The crimp-type power module according to claim 1, characterized in that: The press-fit power device of the press-fit power module is an IGCT device, an IGBT device or an IEGT device.
14. A converter, comprising a crimping type power module, characterized in that: The crimping type power module is the crimping type power module as described in any one of claims 1 to 13.