Novel base structure

Abstract

The utility model provides a novel engine base structure, which relates to the technical field of motor structures and comprises an engine base cylinder, a main junction box wire outlet is arranged at the top of the engine base cylinder and positioned at one end of the top of the engine base cylinder, and at least four bottom foot plates are symmetrically arranged at the bottom of the engine base cylinder. And a bottom ventilating duct is arranged between the same two bottom foot plates. The main junction box wire outlet is formed in the top again, so that a main lead wire does not need to penetrate through the top ventilating duct, the main lead wire is prevented from blocking the top ventilating duct, the heat dissipation effect is prevented from being affected, and meanwhile, the overall weight is reduced due to the holes. And the bottom ventilating duct is arranged at the bottom, so that the overall heat dissipation area of the base is increased, and the heat dissipation effect of the motor is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor structure technology, and in particular to a novel frame structure. Background Technology

[0002] Existing motor housings have structural flaws during use. For example, the main junction box is usually located in the side ventilation duct, and the main lead wire is introduced into the main junction box along the inner side of the ventilation duct. The main lead wire of large motors is generally quite thick, which will occupy a large part of the ventilation duct volume, thus causing poor ventilation, affecting the internal heat sweeping of the motor, and leading to high motor temperature.

[0003] On the other hand, the entire base of a typical motor frame consists of two rows of supporting ribs, forming a single supporting and reinforcing structure. This structure results in a relatively small ventilation channel area and heat dissipation surface area under the motor, leading to poor heat dissipation capacity. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a novel base structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel base structure, including a base cylinder, a main junction box outlet is provided at the top of the base cylinder, the main junction box outlet is located at one end of the top of the base cylinder, and at least four base plates are symmetrically provided at the bottom of the base cylinder, with a bottom ventilation channel provided between two base plates of the same type.

[0006] Specifically, the bottom ventilation duct surface is equipped with heat dissipation ribs.

[0007] Preferably, the base tube is also provided with a top ventilation duct, which is located on both sides of the top of the base tube, and an auxiliary junction box outlet is provided on the top ventilation duct.

[0008] Specifically, the top of the base tube has at least five lifting holes, one of which is located at the outlet of the main junction box, and the remaining four lifting holes are evenly distributed on the top ventilation duct.

[0009] Preferably, the top ventilation duct is equipped with heat dissipation fins.

[0010] Specifically, the top ventilation duct cross-section is provided with temperature measuring threaded holes and vibration measuring threaded holes.

[0011] Furthermore, at least four fan cover mounting holes are evenly distributed on the top of the base cylinder along the axial direction of the base cylinder.

[0012] Specifically, grounding holes are provided at the main junction box outlet and the bottom ventilation duct.

[0013] Specifically, a grounding hole is also provided next to the cable outlet of the auxiliary junction box.

[0014] In this invention, by re-establishing the main junction box outlet at the top, the main lead wire no longer needs to pass through the top ventilation channel, thus avoiding blockage and improving heat dissipation. The opening also reduces the overall weight. Furthermore, by providing a bottom ventilation channel, the overall heat dissipation area of ​​the base is increased, improving the motor's cooling performance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the base in the prior art;

[0016] Figure 2 This is a three-dimensional structural diagram of the novel base proposed in this utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure from another angle;

[0018] Figure 4 This is a three-dimensional structural diagram of the bottom position of the new type of base;

[0019] Figure 5 for Figure 2 A cross-sectional structural diagram of the structure.

[0020] Legend: 1. Base tube; 2. Main junction box outlet; 3. Base plate; 4. Bottom ventilation duct; 5. Top ventilation duct; 6. Auxiliary junction box outlet; 7. Lifting hole; 8. Fan cover mounting hole; 9. Grounding hole; 10. Temperature measuring threaded hole, vibration measuring threaded hole. Detailed Implementation

[0021] like Figure 1 As shown, the existing motor housing has structural inconsistencies during use. For example, the main junction box is usually located in the side ventilation duct, and the main lead wire is introduced into the main junction box along the inner side of the ventilation duct. The main lead wire of large motors is generally quite thick, and such a main lead wire will occupy a large part of the ventilation duct volume, which will cause poor ventilation, affect the internal heat sweeping of the motor, and lead to high motor temperature.

[0022] On the other hand, the entire base of a typical motor frame consists of two rows of supporting ribs, forming a single supporting and reinforcing structure. This structure results in a relatively small ventilation channel area and heat dissipation surface area under the motor, leading to poor heat dissipation capacity.

[0023] like Figure 2 , Figure 4 and Figure 5As shown, this utility model provides a novel base structure, including a base cylinder 1. The top of the base cylinder 1 is provided with a main junction box outlet 2, which is located at one end of the top of the base cylinder 1. At least four base plates 3 are symmetrically provided at the bottom of the base cylinder 1, and a bottom ventilation channel 4 is provided between two base plates 3 of the same type.

[0024] In this specific design, the main junction box outlet 2 is located at the top, which facilitates the rotation of the main junction box and provides users with multiple options for cable outlet directions, making it more practical; at the same time, the overall configuration is more reasonable, which is beneficial for controlling motor vibration.

[0025] In this embodiment, the main junction box outlet 2 adopts a structure of support column and wall panel. This structure is beneficial for controlling the vibration mode and reducing the total weight.

[0026] Specifically, the bottom ventilation duct 4 has heat dissipation ribs on its surface. By setting the bottom ventilation duct 4 at the bottom, it serves both as a ventilation channel and as a support for the machine base 1. The cross-sectional area and surface area of ​​the entire lower ventilation duct are greatly increased, effectively improving the heat dissipation capacity. The heat dissipation ribs on the surface of the bottom ventilation duct 4 greatly increase the contact area between the ventilation duct and the outside environment, greatly improving the heat exchange capacity between the ventilation duct and the outside environment, which helps to reduce the temperature rise of the motor.

[0027] In this specific embodiment, the base cylinder 1 is also provided with a top ventilation duct 5, which is located on both sides of the top of the base cylinder 1. An auxiliary junction box outlet 6 is provided on the top ventilation duct 5. The auxiliary junction box outlet 6 is located on the side and the wires exit horizontally, which is convenient for users to operate the wiring and is more aesthetically pleasing.

[0028] Specifically, there are four auxiliary junction boxes arranged symmetrically in pairs, providing users with more options for cable output directions and making it more convenient for them to use.

[0029] To facilitate hoisting, the top of the base cylinder 1 is provided with at least five hoisting holes 7. One of the hoisting holes 7 is located at the main junction box outlet 2, and the remaining four hoisting holes 7 are evenly distributed on the top ventilation duct 5. The top hoisting holes 7 are designed in a vertical direction, so that the tangential force on the lifting ring and the hoisting holes 7 during the hoisting process is smaller and more reliable.

[0030] Specifically, with the design of five lifting holes 7, generally we only need to use two diagonally opposite lifting holes 7, specifically to avoid installing lifting rings at the outlet of the main junction box. When the motor has a neutral point junction box, that is, when it has two main junction boxes, there are main junction box outlets 2 on both the left and right sides. If diagonally opposite lifting holes 7 are used, the lifting rope will interfere with the junction box, which is unreliable. In this case, the middle lifting hole 7 plus the two rear lifting holes 7 can be used for lifting.

[0031] Preferably, the top ventilation duct 5 is equipped with heat dissipation fins. By setting the heat dissipation fins, the contact area between the internal hot air and the ventilation duct shell wall is increased, enhancing the heat dissipation capacity and helping to reduce the temperature rise of the motor.

[0032] Specifically, the top ventilation duct section 5 has a temperature measurement threaded hole and a vibration measurement threaded hole 10. The temperature and vibration measurement leads are introduced into the ventilation duct from here, and further along the inner side of the ventilation duct into the auxiliary junction box. This avoids the common situation where the leads are exposed outside the motor, effectively preventing the leads from being bumped by other foreign objects, making it safer and more aesthetically pleasing.

[0033] like Figure 3 As shown, at least four fan shroud mounting holes 8 are evenly distributed along the axial direction of the top of the base cylinder 1. This axial mounting design facilitates installation; the axial position of the fan shroud can be adjusted by adding shims. The positional accuracy of the mounting holes is ensured by precision machining, achieving higher precision than common cylindrical fan shroud mounting holes. This accurately guarantees the coaxiality of the fan shroud and the external fan, preventing strong noise caused by misalignment between the fan and the fan inlet.

[0034] Specifically, grounding holes are provided at the main junction box outlet 2 and the bottom ventilation duct 4, and a grounding hole is also provided next to the auxiliary junction box outlet 6.

[0035] In practice, a grounding hole is located next to the main cable outlet for easy connection between the main junction box and the base, while also meeting the connection requirements for left and right cable outlets. A grounding hole is also located next to the auxiliary cable outlet for easy connection between the auxiliary junction box and the base. The secondary grounding hole protrusions are designed with inner and outer protrusions to meet wiring requirements without drilling through, ensuring no water leakage into the base at the connection point. The grounding hole connected to the earth is located on the axial support plate at the top of the lower ventilation duct. Its location is clearly visible and convenient for user operation. Located on the support plate, the horizontal radial width of the support plate ensures that the grounding hole will not be drilled through, preventing water leakage into the base at the connection point. Symmetrical arrangement on both sides for user convenience.

Claims

1. A novel base structure, comprising a base cylinder (1), characterized in that: The top of the base cylinder (1) is provided with a main junction box outlet (2), the main junction box outlet (2) is located at one end of the top of the base cylinder (1), and at least four bottom plates (3) are symmetrically provided at the bottom of the base cylinder (1), and a bottom ventilation channel (4) is provided between two bottom plates (3). The base cylinder (1) is also provided with a top ventilation channel (5), which is located on both sides of the top of the base cylinder (1). An auxiliary junction box outlet (6) is provided on the top ventilation channel (5). The top of the base cylinder (1) is provided with at least five lifting holes (7), one of which is located at the outlet (2) of the main junction box, and the remaining four lifting holes (7) are evenly distributed on the top ventilation duct (5).

2. The novel base structure according to claim 1, characterized in that: The bottom ventilation channel (4) has heat dissipation ribs on its surface.

3. The novel base structure according to claim 1, characterized in that: The top ventilation duct (5) is equipped with heat dissipation ribs.

4. The novel base structure according to claim 1, characterized in that: The top ventilation duct (5) has a temperature measuring threaded hole and a vibration measuring threaded hole (10) in its cross section.

5. The novel base structure according to claim 1, characterized in that: At least four fan cover mounting holes (8) are evenly distributed on the top of the base cylinder (1) along the axial direction of the base cylinder (1).

6. The novel base structure according to claim 1, characterized in that: Grounding holes (9) are also provided at the main junction box outlet (2) and the bottom ventilation duct (4).

7. The novel base structure according to claim 1, characterized in that: A grounding hole (9) is also provided next to the cable outlet (6) of the auxiliary junction box.

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