Motor and engineering machinery

Abstract

The utility model relates to a motor and engineering machinery, and relates to the technical field of electrical elements, the motor comprises a motor body and a controller, the motor body is provided with a plurality of first connecting ends, and each first connecting end comprises one of a hole-shaped structure and a columnar structure; the controller is provided with a plurality of second connecting ends, and each second connecting end comprises the other one of a hole-shaped structure and a columnar structure; wherein an elastic wire spring is arranged in the hole-shaped structure, the columnar structure is connected with the hole-shaped structure in an inserted mode, and the elastic wire spring is matched with the columnar structure. According to the motor and the engineering machinery provided by the embodiment of the invention, the problems that the occupied space of the copper bar is large and the three-phase line and the copper bar are inconvenient to disassemble and assemble can be solved.

Description

Electric motors and construction machinery Technical Field

[0001] This application relates to the field of electrical components technology, specifically to an electric motor and engineering machinery. Background Technology

[0002] Currently, a motor consists of a motor body and a controller. The controller is mounted on the motor body, and the motor body and controller are electrically connected via three-phase wires. In related technologies, the three-phase wires between the motor body and the controller are connected by copper busbars, which takes up a lot of space and is inconvenient to disassemble and assemble, affecting efficiency. Summary of the Invention

[0003] To address the aforementioned technical problems, embodiments of this application provide an electric motor and engineering machinery that can improve the issues of large space occupied by copper busbars and inconvenient disassembly and assembly between three-phase lines and copper busbars.

[0004] In a first aspect, an electric motor is provided, comprising:

[0005] The motor body is provided with multiple first connection ends, each of which includes either a hole-like structure or a columnar structure.

[0006] The controller is provided with multiple second connection terminals, each of which includes the other of the hole-like structure and the columnar structure.

[0007] The perforated structure contains an elastic wire spring, the columnar structure is inserted into the perforated structure, and the elastic wire spring cooperates with the columnar structure.

[0008] According to a first aspect of this application, the elastic coil spring includes a first connecting portion, a second connecting portion, and a third connecting portion, wherein the first connecting portion, the second connecting portion, and the third connecting portion are connected sequentially along the length direction of the elastic coil spring;

[0009] Wherein, the outer diameter of the second connecting part is greater than the outer diameter of the first connecting part, and the outer diameter of the second connecting part is greater than the outer diameter of the third connecting part.

[0010] According to a first aspect of this application, the elastic spring is compressed and attached to the inner wall of the perforated structure.

[0011] According to a first aspect of this application, in the state where the perforated structure and the columnar structure are inserted, the inner cavity of the perforated structure forms a vacuum cavity.

[0012] According to a first aspect of this application, the controller includes:

[0013] A housing is connected to the motor body, and a plurality of second connection ends are provided at one end of the housing near the motor body;

[0014] Multiple gate modules are disposed within the housing, and the multiple gate modules are distributed at circumferential intervals along the housing.

[0015] According to a first aspect of this application, the housing is provided with a mounting groove that extends circumferentially along the housing, and a plurality of the gate modules are engaged in the mounting groove.

[0016] According to a first aspect of this application, the housing is provided with cooling channels that surround the plurality of mounting slots.

[0017] According to a first aspect of this application, the cooling channel extends spirally along the height direction of the housing, and the cooling channel covers the opposite sides of each mounting slot.

[0018] According to a first aspect of this application, a temperature sensor is provided on the first connection end and / or the second connection end.

[0019] Secondly, an engineering machinery is also provided, including:

[0020] The motor as described in the previous embodiment.

[0021] Compared to related technologies that use copper busbars to connect the three-phase wires (which are typically fixed to the three-phase wires with bolts) to achieve electrical connection between the controller and the motor body, the motor and engineering machinery provided in this application embodiment utilize a plug-in connection between a hole-like structure and a column-like structure. This allows for quick assembly and disassembly of the first and second connection ends. Furthermore, the use of an elastic spring in conjunction with the column-like structure ensures electrical connection between the first and second connection ends after plugging, guaranteeing that the controller can send control signals to the motor body. In other words, the plug-in structure, while ensuring electrical connection between the controller and the motor body, makes assembly and disassembly more convenient and faster, effectively improving the problem of inconvenient assembly and disassembly between the three-phase wires and the copper busbar. Moreover, by removing the copper busbar, the overall space occupied by the first and second connection ends is smaller, resulting in lower manufacturing costs and effectively addressing the issue of large space occupation by the copper busbar in related technologies. Attached Figure Description

[0022] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0023] Figure 1 is a schematic diagram of the structure of a motor provided in an exemplary embodiment of this application.

[0024] Figure 2 is a schematic diagram of the structure of the motor body provided in an exemplary embodiment of this application.

[0025] Figure 3 is a schematic diagram of the controller provided in an exemplary embodiment of this application.

[0026] Figure 4 is a schematic diagram of the structure of an elastic wire spring provided in an exemplary embodiment of this application.

[0027] Figure 5 is a schematic diagram of the structure of the housing and multiple gate modules provided in an exemplary embodiment of this application.

[0028] Figure 6 is a cross-sectional view of the housing provided in an exemplary embodiment of this application.

[0029] Figure 7 is a schematic diagram of the structure of the housing and cooling channel provided in an exemplary embodiment of this application.

[0030] Reference numerals: 100-Motor; 110-Motor body; 111-First connection end; 120-Controller; 121-Second connection end; 122-Housing; 123-Gate module; 124-Mounting slot; 125-Cooling channel; 130-Elastic spring; 131-First connection part; 132-Second connection part; 133-Third connection part. Detailed Implementation

[0031] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0032] Figure 1 is a schematic diagram of the structure of a motor provided in an exemplary embodiment of this application. Figure 2 is a schematic diagram of the structure of the motor body provided in an exemplary embodiment of this application. Figure 3 is a schematic diagram of the structure of the controller provided in an exemplary embodiment of this application. As shown in Figures 1 to 3, the motor 100 provided in the embodiment of this application may include a motor body 110 and a controller 120. The motor body 110 is provided with a plurality of first connection terminals 111, and the controller 120 is provided with a plurality of second connection terminals 121. During the assembly of the motor body 110 and the controller 120, the plurality of first connection terminals 111 are respectively inserted into the plurality of second connection terminals 121, which can realize the rapid assembly between the motor body 110 and the controller 120.

[0033] In one embodiment, the first connecting end 111 includes a hole-like structure, and the second connecting end 121 includes a column-like structure. The column-like structure and the hole-like structure are inserted into each other. The insertion process is simple and the disassembly and assembly are convenient, which can facilitate the quick disassembly and assembly between the motor body 110 and the controller 120 and improve the disassembly and assembly efficiency.

[0034] In one embodiment, the first connecting end 111 includes a columnar structure and the second connecting end 121 includes a hole-like structure. The columnar structure and the hole-like structure are plugged into each other. The plugging process is simple and the disassembly and assembly are convenient, which can facilitate the quick disassembly and assembly between the motor body 110 and the controller 120 and improve the disassembly and assembly efficiency.

[0035] Figure 4 is a schematic diagram of the structure of an elastic wire spring provided in an exemplary embodiment of this application. As shown in Figure 4, an elastic wire spring 130 can be disposed within the perforated structure. After the columnar structure and the perforated structure are inserted, the elastic wire spring 130 cooperates with the columnar structure, and the elastic wire spring 130 can be used to transmit electrical signals. That is, by inserting the columnar structure and the perforated structure, the first connecting end 111 and the second connecting end 121 can be electrically connected, and the controller 120 can send control signals to the motor body 110 through the first connecting end 111 and the second connecting end 121.

[0036] It should be understood that, compared to the related technologies where the controller 120 and the motor body 110 are electrically connected by connecting the three-phase wires with copper busbars (the copper busbars and the three-phase wires are usually fixed with bolts), the motor 100 provided in this application embodiment allows for quick assembly and disassembly of the first connection end 111 and the second connection end 121 through the insertion and connection of the hole-like structure and the column-like structure. Furthermore, the elastic spring 130, in conjunction with the column-like structure, enables electrical connection between the first connection end 111 and the second connection end 121 after insertion, ensuring that the controller 120 can send control signals to the motor body 110. In other words, the insertion and connection structure ensures electrical connection between the controller 120 and the motor body 110 while making assembly and disassembly more convenient and faster, effectively improving the problem of inconvenient assembly and disassembly between the three-phase wires and the copper busbars. Moreover, by removing the copper busbars, the first connection end 111 and the second connection end 121 occupy less space overall, resulting in lower manufacturing costs and effectively improving the problem of large space occupation by copper busbars in related technologies.

[0037] In one embodiment, there are three first connection terminals 111 and three second connection terminals 121. The three first connection terminals 111 and the three second connection terminals 121 are connected in a one-to-one correspondence, which can realize the separate electrical connection of the three phase lines and avoid mutual interference during the assembly process of the three phase lines.

[0038] In one embodiment, the spacing between the multiple first connection terminals 111 can be adjusted according to the layout of the components inside the motor body 110. By changing the distribution structure of the multiple first connection terminals 111, different layouts inside the motor body 110 can be adapted. Similarly, by changing the distribution structure of the multiple second connection terminals 121, different layouts inside the controller 120 can be adapted.

[0039] As shown in Figure 4, the elastic spring 130 may include a first connecting part 131, a second connecting part 132 and a third connecting part 133, which are connected sequentially along the length direction of the elastic spring 130 (refer to the Y-axis direction in Figure 4).

[0040] It should be noted that the outer diameter of the second connecting part 132 is larger than the outer diameter of the first connecting part 131, and the outer diameter of the second connecting part 132 is larger than the outer diameter of the third connecting part 133. This allows the second connecting part 132 to be easily engaged in the inner wall of the hole structure, preventing the elastic spring 130 from rotating or shifting axially within the hole structure, thus increasing installation reliability.

[0041] In one embodiment, the outer diameter of the first connecting portion 131 is equal to the outer diameter of the third connecting portion 133, and the outer diameters of both the first connecting portion 131 and the third connecting portion 133 are smaller than the outer diameter of the second connecting portion 132. The elastic spring 130 has an overall spindle structure.

[0042] In one embodiment, the elastic wire spring 130 can be compressed and attached to the inner wall of the perforated structure. This can, on the one hand, prevent the elastic wire spring 130 from detaching from the perforated structure and increase the assembly stability of the elastic wire spring 130 within the perforated structure; on the other hand, it can increase the contact area and contact pressure between the elastic wire spring 130 and the inner wall of the perforated structure, ensuring effective and reliable contact between the elastic wire spring 130 and the inner wall of the perforated structure.

[0043] It should be noted that after the perforated structure and the columnar structure are connected, the inner cavity of the perforated structure can be evacuated. This can ensure the insulation performance inside the perforated structure and increase safety performance.

[0044] Figure 5 is a schematic diagram of the structure of the housing and multiple gate modules provided in an exemplary embodiment of this application. As shown in Figure 5, the controller 120 may include a housing 122, which is connected to the motor body 110. The aforementioned multiple second connection terminals 121 are located at one end of the housing 122 near the motor body 110.

[0045] In practical applications, after the multiple first connection ends 111 and multiple second connection ends 121 are respectively plugged in, the housing 122 can be connected and fixed to the motor body 110 by bolts.

[0046] As shown in Figure 5, the controller 120 may also include multiple gate modules 123, which are disposed within the housing 122. The multiple gate modules 123 can be used to generate drive signals and control the on / off state of the power devices.

[0047] It should be noted that, since the copper busbar is eliminated, the space occupied by the multiple second connection terminals 121 is smaller, and the distance and orientation between the multiple second connection terminals 121 can be adjusted according to the actual layout. Therefore, in this embodiment of the application, by adjusting the position of the multiple second connection terminals 121, more space can be reserved to assemble multiple gate modules 123.

[0048] Specifically, as shown in Figure 5, multiple gate modules 123 are distributed circumferentially along the housing 122, and the heat dissipation among the multiple gate modules 123 is more uniform, which is beneficial to ensuring the working performance of the multiple gate modules 123.

[0049] In one embodiment, the distance between any two adjacent gate modules 123 along the circumferential direction of the housing 122 is equal, and the distribution of multiple gate modules 123 is more uniform, which is beneficial to further improve the problem of uneven heat dissipation.

[0050] Figure 6 is a cross-sectional view of a housing provided in an exemplary embodiment of this application. As shown in Figure 6, a mounting groove 124 is provided in the housing 122, and the mounting groove 124 extends circumferentially along the housing 122, and a plurality of gate modules 123 are engaged in the mounting groove 124.

[0051] It should be understood that the mounting slot 124 can limit the position of multiple gate modules 123, thereby improving the assembly stability of the multiple gate modules 123.

[0052] In one embodiment, the mounting slot 124 may include an annular slot.

[0053] In one embodiment, the mounting groove 124 may include a spiral groove that extends spirally along the height direction of the housing 122.

[0054] As shown in Figure 6, a cooling channel 125 is provided inside the housing 122, and the cooling channel 125 is arranged around multiple mounting slots 124. In practical applications, the cooling channel 125 can contain coolant, which can cool and dissipate heat from the gate module 123 in the multiple mounting slots 124 to prevent the gate module 123 from overheating.

[0055] In one embodiment, the inlet and outlet of the cooling channel 125 can be provided on the side wall of the housing 122, and the cooling channel 125 is distributed in a ring around the circumference of the housing 122, so that the cooling channel 125 can cool and dissipate heat for multiple gate modules 123.

[0056] In one embodiment, the inlet and outlet of the cooling channel 125 can be provided on the bottom wall and top wall of the housing 122. The cooling channel 125 extends spirally along the height direction of the housing 122, so that the cooling channel 125 can also cool and dissipate heat for multiple gate modules 123.

[0057] Figure 7 is a schematic diagram of the housing and cooling channel provided in an exemplary embodiment of this application. As shown in Figure 7, the cooling channel 125 extends spirally along the height direction of the housing 122, and each mounting slot 124 is covered by the cooling channel 125 on both opposite sides. In this way, both opposite sides of each gate module 123 can be cooled and dissipated by the cooling channel 125, effectively increasing the heat dissipation area and heat dissipation efficiency of the gate module 123.

[0058] In one embodiment, a temperature sensor is provided on the first connection terminal 111, which can detect the operating temperature after the first connection terminal 111 and the second connection terminal 121 are connected. In practical applications, if the actual temperature detected by the temperature sensor exceeds the temperature threshold, the controller 120 will control the alarm device to issue an alarm signal and disconnect the circuit to avoid safety accidents.

[0059] In one embodiment, a temperature sensor may be disposed on the second connection terminal 121.

[0060] In one embodiment, temperature sensors may be provided on both the first connection terminal 111 and the second connection terminal 121.

[0061] This application embodiment also provides an engineering machinery, which may include the motor 100 as described in the previous embodiment and has all the functions of the motor 100.

[0062] It should be understood that the beneficial effects of this engineering machinery can be compared with the beneficial effects of the aforementioned motor 100.

[0063] In one embodiment, the construction machinery may include excavators, loaders, cranes, etc.

[0064] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0065] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0066] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0067] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0068] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. An electric motor, characterized in that, include: The motor body is provided with multiple first connection ends, each of which includes either a hole-like structure or a columnar structure. The controller is provided with multiple second connection terminals, each of which includes the other of the perforated structure and the columnar structure; wherein, an elastic spring is provided inside the perforated structure, the columnar structure is inserted into the perforated structure, and the elastic spring cooperates with the columnar structure.

2. The motor according to claim 1, characterized in that, The elastic coil spring includes a first connecting part, a second connecting part, and a third connecting part, which are connected sequentially along the length of the elastic coil spring; wherein the outer diameter of the second connecting part is larger than the outer diameter of the first connecting part, and the outer diameter of the second connecting part is larger than the outer diameter of the third connecting part.

3. The motor according to claim 1, characterized in that, The elastic spring is compressed and attached to the inner wall of the porous structure.

4. The motor according to any one of claims 1 to 3, characterized in that, When the perforated structure and the columnar structure are connected, the inner cavity of the perforated structure forms a vacuum cavity.

5. The motor according to any one of claims 1 to 3, characterized in that, The controller includes: a housing connected to the motor body, with a plurality of second connection terminals disposed at one end of the housing near the motor body; and a plurality of gate modules disposed within the housing, the plurality of gate modules being distributed circumferentially along the housing.

6. The motor according to claim 5, characterized in that, The housing has a mounting groove that extends circumferentially along the housing, and multiple gate modules are fitted into the mounting groove.

7. The motor according to claim 6, characterized in that, The housing is provided with cooling channels, which are arranged around the plurality of mounting slots.

8. The motor according to claim 7, characterized in that, The cooling channel extends spirally along the height direction of the housing, and the cooling channel covers the opposite sides of each mounting slot.

9. The motor according to any one of claims 1 to 3, characterized in that, A temperature sensor is provided on the first connection end and / or the second connection end.

10. An engineering machinery, characterized in that, include: The motor as described in any one of claims 1 to 9.

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