Oil-cooled motor stator assembly

Abstract

The utility model discloses an oil-cooled motor stator assembly, which comprises a shell, a coil, a binding post, a wiring terminal and an insulating plate, the coil is provided with a wire outlet end, the wire outlet end comprises a plurality of connecting wires, the tail ends of the plurality of connecting wires are connected with the wiring terminal, the binding post is fixedly connected with the insulating plate, the shell comprises a wiring block, the first end of the binding post is connected with the wiring terminal, and the second end of the binding post is fixedly connected with the insulating plate. The second end of the binding post is connected with the wiring block. The high-speed working condition efficiency of the oil-cooled motor coil is improved by using the plurality of connecting wires as the outgoing lines, and the sealing performance of the oil-cooled motor stator assembly can be ensured and the insulation requirement of the oil-cooled motor can be met by using the connecting terminal to connect the plurality of connecting wires and the connecting block.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-cooled motor wiring, in particular to an oil-cooled motor stator assembly. Background Art

[0002] The coil of the oil-cooled motor is inside a closed cavity filled with cooling oil, which has very high requirements for sealing. Existing oil-cooled motors mostly use flat wire coils. The flat wire is relatively regular, and there are no irregular gaps in the lead wire. It can be directly welded to the terminal, which is less difficult to implement. However, the AC loss of the flat wire is high, and the efficiency of high-speed working conditions is low.

[0003] Therefore, how to improve the high-speed operating efficiency of oil-cooled motor coils is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an oil-cooled motor stator assembly to improve the high-speed working efficiency of the oil-cooled motor coil;

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An oil-cooled motor stator assembly includes a shell, a coil, a terminal, a terminal and an insulating plate. The coil is provided with an outlet terminal, the outlet terminal includes a plurality of wires, the ends of the plurality of wires are connected to the terminal, the terminal is fixedly connected to the insulating plate, the shell includes a terminal block, the first end of the terminal is connected to the terminal, and the second end of the terminal is connected to the terminal block.

[0007] Optionally, in the above-mentioned oil-cooled motor stator assembly, the insulating plate is connected to the shell, and the insulating plate and the shell cooperate to form a sealed chamber, and cooling oil is arranged inside the sealed chamber.

[0008] Optionally, in the above-mentioned oil-cooled motor stator assembly, the insulating plate is provided with a mounting hole, and the mounting hole matches the first end of the terminal.

[0009] Optionally, in the above-mentioned oil-cooled motor stator assembly, sealant and / or structural adhesive is arranged inside the mounting hole.

[0010] Optionally, in the above-mentioned oil-cooled motor stator assembly, the oil-cooled motor stator assembly also includes a connecting piece, the terminal has a first connecting hole, the first end of the terminal has a second connecting hole, and the connecting piece cooperates with the first connecting hole and the second connecting hole.

[0011] Optionally, in the above-mentioned oil-cooled motor stator assembly, the connecting member is a bolt.

[0012] Optionally, in the above-mentioned oil-cooled motor stator assembly, the terminal is connected to the terminal post by welding.

[0013] Optionally, in the above-mentioned oil-cooled motor stator assembly, the terminal block is provided with a third connecting hole, and the second end of the terminal is provided with a fourth connecting hole, and when the insulating plate is connected to the shell, the positions of the third connecting hole and the fourth connecting hole correspond.

[0014] Optionally, in the above-mentioned oil-cooled motor stator assembly, the number of connection terminals is two or more.

[0015] The oil-cooled motor stator assembly provided by the utility model uses multiple wirings as lead-out wires, thereby improving the high-speed working efficiency of the oil-cooled motor coil. At the same time, the multiple wirings and the wiring block are connected using wiring terminals, which can ensure the sealing of the oil-cooled motor stator assembly and meet the insulation requirements of the oil-cooled motor.

[0016] It should be noted that in the prior art oil-cooled motor stator assembly, no coil with multiple wires is used, because when multiple wires are used, the multiple wires need to be led to the outside of the oil-cooled motor stator assembly through a certain position of the oil-cooled motor stator assembly and connected to the power line. However, there will be irregular gaps between the wires of the multiple wires, which makes it difficult to seal. This solution is difficult to implement. Therefore, the utility model can connect the wiring block to the multiple wires by arranging the wiring terminals without leading out the multiple wires, thereby ensuring the sealing of the oil-cooled motor stator assembly and meeting the insulation requirements of the oil-cooled motor. At the same time, compared with the flat wires in the prior art, the multiple wires have the advantages of small AC loss, higher efficiency in high-speed working conditions, convenient coil adjustment, short development cycle, low mass production line cost and good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 This is an overall structural diagram of the oil-cooled motor stator assembly disclosed in the embodiment of the utility model;

[0019] Figure 2 A three-dimensional diagram of an oil-cooled motor stator assembly disclosed in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the insulation board disclosed in the embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the coil disclosed in the embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of assembling the insulating plate and the coil disclosed in the embodiment of the utility model;

[0023] in:

[0024] The housing 100 , the junction block 101 , the sealed chamber 102 , the third connection hole 103 , the coil 200 , the junction 201 , the terminal post 300 , the fourth connection hole 301 , the connection terminal 400 , the first connection hole 401 , and the insulating plate 500 . DETAILED DESCRIPTION

[0025] 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 of the utility model, all other embodiments obtained by ordinary technicians in this field without making novel work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] like Figure 1-Figure 5As shown, the oil-cooled motor stator assembly disclosed in the utility model includes a housing 100, a coil 200, a terminal 300, a terminal 400 and an insulating plate 500, the coil 200 is provided with an outlet terminal, the outlet terminal includes a plurality of wires 201, the ends of the plurality of wires 201 are connected to the terminal 400, the terminal 300 is fixedly connected to the insulating plate 500, the housing 100 includes a terminal block 101, the first end of the terminal 300 is connected to the terminal 400, and the second end of the terminal 300 is connected to the terminal block 101. Specifically, when the oil-cooled motor stator assembly is assembled, the coil 200 is arranged between the housing 100 and the insulating plate 500, the terminal 400 is connected to the first end of the terminal 300, and the second end of the terminal 300 is connected to the terminal block 101, and the power line outside the oil-cooled motor stator assembly can be connected to the terminal 300 through the terminal block 101, and then connected to the terminal 400 and the plurality of wires 201. The oil-cooled motor stator assembly provided by the utility model uses multiple wirings 201 as lead-out wires, thereby improving the high-speed working efficiency of the oil-cooled motor coil 200. At the same time, the wiring terminals 400 are used to connect the multiple wirings 201 and the wiring block 101, which can ensure the sealing of the oil-cooled motor stator assembly and meet the insulation requirements of the oil-cooled motor.

[0028] In order to optimize the above technical solution, the insulating plate 500 is connected to the housing 100, and the insulating plate 500 and the housing 100 cooperate to form a sealed chamber 102, and cooling oil is arranged inside the sealed chamber 102. Specifically, the cooling oil is used to cool the coil 200. When the oil-cooled motor stator assembly is assembled, the insulating plate 500 and the housing 100 seal the coil 200 inside the sealed chamber 102. Such an arrangement can achieve the sealing of the coil 200, meet the sealing and insulation requirements of the oil-cooled motor, and improve the high-speed working efficiency of the oil-cooled motor coil 200.

[0029] In order to optimize the above technical solution, the insulating plate 500 is provided with a mounting hole, and the mounting hole matches with the first end of the terminal 300. Specifically, the terminal 300 is U-shaped, and its opening is arranged toward the coil 200. Its first end passes through the mounting hole, and the terminal 300 is fixed to the insulating plate 500, and its first end extends close to the coil 200, so that its first end can be connected to the terminal 400, and its second end extends close to the coil 200, so that its second end can be connected to the terminal block 101. When in use, the mounting hole matches with the terminal 300, so that the insulating plate 500 is connected to the terminal 300, and multiple wires 201 are connected to the terminal 300 through the terminal 400, and the terminal 400 is connected to the terminal block 101 through the terminal 300, so that multiple wires 201 can be connected with the power line without being led out of the sealed chamber 102, thereby improving the high-speed working efficiency of the oil-cooled motor coil 200.

[0030] In order to optimize the above technical solution, sealant and / or structural adhesive are arranged inside the mounting hole. When in use, after the first end of the terminal 300 extends into the mounting hole, the operator fills the sealant and / or structural adhesive into the gap between the first end of the terminal 300 and the mounting hole, thereby further improving the sealing performance of the sealing cavity. Because the oil-cooled motor stator assembly has very high requirements for the sealing performance of the sealing cavity, the sealing performance of the oil-cooled motor stator assembly can be ensured by arranging sealant and / or structural adhesive.

[0031] In some embodiments of the utility model, the oil-cooled motor stator assembly further includes a connector, the wiring terminal 400 is provided with a first connecting hole 401, the first end of the terminal 300 is provided with a second connecting hole, and the connector cooperates with the first connecting hole 401 and the second connecting hole. Specifically, the wiring terminal 400 and the terminal 300 are connected in a split manner. When in use, the operator passes the connector through the first connecting hole 401 and the second connecting hole, and fixes it to achieve the connection between the wiring terminal 400 and the terminal 300. Such an arrangement enables the coil 200 to be disassembled, which is convenient for the operator to inspect and replace the wiring terminal 400 or the coil 200, thereby improving the convenience of using the coil 200.

[0032] In order to optimize the above technical solution, the connecting member is a bolt. Specifically, the first connecting hole 401 and the second connecting hole are threaded holes. When in use, the operator passes the bolt through the first connecting hole 401 and the second connecting hole to achieve the connection between the terminal 400 and the terminal 300. Because bolts are easy to obtain and have low cost, setting the connecting member as a bolt can ensure that the terminal 400 and the terminal 300 are easy to install and disassemble, while reducing the production cost of the oil-cooled motor stator assembly.

[0033] In some other embodiments of the utility model, the terminal 400 is connected to the terminal post 300 by welding. Specifically, the terminal 400 is connected to the terminal post 300 in an integrated manner. When in use, the operator welds the first end of the terminal 400 to the terminal post 300, moves the coil 200 and the insulating plate 500, so that the housing 100 is connected to the insulating plate 500, and the second end of the terminal post 300 is matched with the terminal block 101. Such an arrangement can improve the connection stability between the terminal 400 and the terminal post 300, thereby improving the stability of the oil-cooled motor stator assembly when in use.

[0034] In order to optimize the above technical solution, the terminal block 101 is provided with a third connection hole 103, and the second end of the terminal post 300 is provided with a fourth connection hole 301. When the insulating plate 500 is connected to the housing 100, the positions of the third connection hole 103 and the fourth connection hole 301 correspond. Specifically, the terminal block 101 includes a metal insert, and the third connection hole 103 is provided on the metal insert, and the third connection hole 103 is a threaded hole. When in use, the bolt passes through the third connection hole 103 and the fourth connection hole 301 to achieve the connection between the terminal post 300 and the housing 100. It should be noted that the power line is connected to the multiple wirings 201 through the third connection hole 103 and the fourth connection hole 301. Such an arrangement allows the multiple wirings 201 to be connected to the power line without being led out of the sealed cavity, thereby ensuring the sealing of the oil-cooled motor stator assembly and improving the high-speed working efficiency of the oil-cooled motor coil 200.

[0035] In order to optimize the above technical solution, the number of the wiring terminals 400 is two or more. Specifically, the utility model preferably has three wiring terminals 400, and correspondingly, three wiring posts 300 and three third connection holes 103 provided by the metal insert, so as to form a three-phase connection of the oil-cooled motor stator assembly.

[0036] The advantages of the utility model are:

[0037] (1) Improved the high-speed operating efficiency of oil-cooled motor coils;

[0038] (2) Ensure the sealing of the oil-cooled motor stator assembly;

[0039] (3) The insulation of the oil-cooled motor stator assembly is ensured.

[0040] It should be noted that the oil-cooled motor stator assembly provided by the present invention can be used in the field of oil-cooled motor wiring technology or other fields. Other fields are any fields other than the field of oil-cooled motor wiring technology. The above is only an example and does not limit the application field of the oil-cooled motor stator assembly provided by the present invention.

[0041] 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.

[0042] 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.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An oil-cooled motor stator assembly, characterized in that: It includes a shell, a coil, a terminal, a terminal and an insulating plate. The coil is provided with an outlet terminal, and the outlet terminal includes a plurality of wires. The ends of the plurality of wires are connected to the terminal. The terminal is fixedly connected to the insulating plate. The shell includes a terminal block. The first end of the terminal is connected to the terminal, and the second end of the terminal is connected to the terminal block.

2. The oil-cooled motor stator assembly according to claim 1, characterized in that: The insulating plate is connected to the shell, and the insulating plate and the shell cooperate to form a sealed chamber, and cooling oil is arranged inside the sealed chamber.

3. The oil-cooled motor stator assembly according to claim 2, characterized in that: The insulating plate is provided with a mounting hole, and the mounting hole matches with the first end of the terminal.

4. The oil-cooled motor stator assembly according to claim 3, characterized in that: Sealant and / or structural adhesive is arranged inside the mounting hole.

5. The oil-cooled motor stator assembly according to claim 1, characterized in that: The oil-cooled motor stator assembly also includes a connecting piece, the connecting terminal is provided with a first connecting hole, the first end of the connecting post is provided with a second connecting hole, and the connecting piece cooperates with the first connecting hole and the second connecting hole.

6. The oil-cooled motor stator assembly according to claim 5, characterized in that: The connecting piece is a bolt.

7. The oil-cooled motor stator assembly according to claim 1, characterized in that: The connection terminal is connected to the connection post by welding.

8. The oil-cooled motor stator assembly according to claim 1, characterized in that: The junction block is provided with a third connection hole, and the second end of the junction post is provided with a fourth connection hole. When the insulating plate is connected to the shell, the positions of the third connection hole and the fourth connection hole correspond to each other.

9. The oil-cooled motor stator assembly according to claim 1, characterized in that: The number of the connection terminals is two or more.

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