An S-shaped water channel heat dissipation cooling steel plate tailor-welded structure motor

Abstract

The utility model discloses a kind of steel plate tailor-welded structure motor of S-shaped waterway heat dissipation cooling, it is related to the technical field of motor, including motor base, front end cover, rear end cover, stator and rotor. Motor base is tailor-welded from steel plate cylinder, steel plate bar, positioning strip and aluminium water baffle, aluminium water baffle is clamped in motor base both ends by the positioning groove on positioning strip, and water inlet is equipped between adjacent aluminium water baffle, and together with arc outer shroud, corner guard plate constitutes closed S-shaped water cooling cavity. Cooling water flows along S-shaped path, realizes efficient, uniform heat dissipation. The utility model improves the rigidity of base by steel plate tailor-welded structure, uses S-shaped waterway to enhance heat exchange efficiency, and combines rubber seal and corner guard piece design to ensure water cooling system reliability, improve installation and maintenance convenience. The utility model has the advantages of excellent heat dissipation performance, high structural strength, reliable sealing, low manufacturing cost, and is suitable for high-power, high-load industrial motor application scene.

Description

Technical Field

[0001] This utility model relates to the technical field of electric motors, specifically to an electric motor with a steel plate welded structure that uses S-shaped water channels for heat dissipation and cooling. Background Technology

[0002] With the continuous improvement of industrial automation, electric motors, as an important power source, are widely used in various industrial systems such as fans, pumps, compressors, and conveying equipment. Under conditions such as high power density, continuous operation, or enclosed environments, if the heat generated by the motor during operation cannot be dissipated in time, it will lead to excessive temperature rise, which in turn will cause insulation aging, efficiency reduction, or even equipment failure, seriously affecting the service life and operational reliability of the motor.

[0003] Traditional motors mostly use self-fan cooling or external air cooling, and their heat dissipation capacity is limited by ambient temperature and motor speed. The heat dissipation effect decreases significantly at low speeds or in enclosed environments. In recent years, water cooling technology has gradually become an important solution for heat dissipation of high-power motors due to its advantages such as high heat conduction efficiency, uniform temperature distribution, and insensitivity to speed.

[0004] However, existing water-cooled motors still have many technical shortcomings: 1. Complex structure: Waterways mostly adopt casting or independent water jacket structures, with a large number of parts, high manufacturing costs, and great assembly difficulty; 2. Uneven heat dissipation: The cooling water flow channel is poorly designed, with short circuits, dead zones, or localized overheating, resulting in insufficient heat dissipation efficiency; 3. Poor process adaptability: Traditional casting machine bases have long processing cycles and low material utilization rates, making them difficult to adapt to the needs of multi-variety, small-batch production.

[0005] Therefore, there is an urgent need for a new type of water-cooled motor structure that is reasonable in structure, efficient in heat dissipation, and easy to manufacture, in order to solve the above problems and improve the operating stability and energy efficiency of the motor under high load conditions. Summary of the Invention

[0006] The purpose of this invention is to provide a steel plate welded structure electric motor with S-shaped water channel for heat dissipation and cooling, so as to solve the above-mentioned defects caused by the prior art.

[0007] A steel plate welded structure electric motor with S-shaped water channel for heat dissipation and cooling includes a motor frame, a front cover, a rear cover, a stator, and a rotor. The motor base includes a steel plate cylinder, steel plate reinforcing bars, positioning bars, and aluminum water-proof strips. Multiple pairs of steel plate reinforcing bars are welded circumferentially to the outer wall of the steel plate cylinder. Two sets of positioning bars are symmetrically connected to both ends of the steel plate cylinder. Multiple positioning grooves are provided circumferentially on the inner wall of each set of positioning bars. Multiple aluminum water-proof strips are fitted into the positioning grooves on the front and rear sides. Water inlets are provided at the opposite ends of two adjacent aluminum water-proof strips. An arc-shaped outer protective plate is sealed and welded between two adjacent sets of steel plate reinforcing bars. An arc-shaped corner protective plate is sealed and welded between each pair of steel plate reinforcing bars. The steel plate cylinder, aluminum water-proof strips, arc-shaped outer protective plate, and arc-shaped corner protective plate together form a closed S-shaped water-cooling cavity. Connecting block one and connecting block two are welded to the front and rear ends of each pair of steel plate reinforcing bars, respectively. The front end cover is fixedly connected to all connecting blocks; The rear end cover is fixedly connected to all connecting blocks 2; The stator is coaxially fixed to the inner side of the steel plate cylinder; The rotor is rotatably connected between the front cover and the rear cover via bearings.

[0008] Preferably, a rubber sheet is provided between the aluminum waterproof strip and the arc-shaped outer protective plate.

[0009] Preferably, each pair of steel plate reinforcing bars is symmetrically provided with a pair of water passages, and corner guards are used to seal and connect adjacent water passages.

[0010] Preferably, a nameplate holder is fixedly connected to the middle of the curved outer protective plate on the side.

[0011] Preferably, a motor junction box is fixedly connected to the front of the upper arc-shaped outer protective plate.

[0012] Preferably, a fixing plate is fixedly connected to the rear of the upper arc-shaped outer protective plate, and the fixing plate is provided with a water inlet pipe and a water outlet pipe.

[0013] Preferably, a lifting ring seat is fixedly connected to the middle of the two pairs of steel plate reinforcing bars at the top, and a lifting ring is threadedly connected to the top of the lifting ring seat.

[0014] Preferably, the lower sides of the two pairs of steel plate reinforcing bars are fixedly connected to a base plate, and a reinforcing rib is provided between the base plate and the steel plate reinforcing bars on the same side.

[0015] Compared with the prior art, the present invention has the following advantages: 1. High heat dissipation efficiency and uniform temperature distribution By setting up an S-shaped water channel composed of aluminum baffles and water inlets, the cooling water flow path is extended, realizing alternating axial and circumferential flow, which greatly increases the heat exchange area and time, effectively reduces the overall temperature rise of the motor, avoids local overheating, and improves operational stability.

[0016] 2. High structural strength and good rigidity The traditional cast iron base is replaced by a steel plate welded structure. The closed frame structure is formed by welding steel plate cylinders, ribs, connecting blocks and guard plates. It has excellent torsional stiffness and vibration resistance and is suitable for high load and high torque conditions.

[0017] 3. Modular design, convenient manufacturing and maintenance The aluminum water-blocking strip is fastened and precisely assembled using a positioning slot; the water channel structure is designed to be detachable for easy cleaning and maintenance; the entire structure is made of welded steel plates, reducing machining and manufacturing costs, making it suitable for mass production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall explosion structure of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the motor base.

[0021] Figure 4 This is a partial three-dimensional structural diagram of the motor base.

[0022] Figure 5 This is a schematic diagram of a partial explosion of the motor base.

[0023] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0024] in: 10-Motor base; 101-Steel plate cylinder; 102-Steel plate reinforcing strip; 102a-Water inlet; 103-Positioning strip; 103a-Positioning groove; 104-Aluminum water-proof strip; 104a-Water inlet; 105-Rubber plate; 106-Arc-shaped outer protective plate; 107-Corner guard; 108-Arc-shaped corner guard; 109-Connecting block one; 110-Connecting block two; 111-Nameplate holder; 112-Motor junction box; 113-Fixing plate; 114-Water inlet pipe; 115-Water outlet pipe; 116-Lifting eye seat; 117-Lifting eye; 118-Base plate; 119-Reinforcing rib; 20-Front end cap; 30- Rear end cover; 40-Stator; 50-rotor. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1 to 6 As shown, a steel plate welded structure electric motor with S-shaped water channel heat dissipation and cooling includes a motor frame 10, a front end cover 20, a rear end cover 30, a stator 40, and a rotor 50. The motor base 10 includes a steel plate cylinder 101, steel plate reinforcing bars 102, positioning bars 103, and aluminum water-proof strips 104. Multiple pairs of steel plate reinforcing bars 102 are welded circumferentially to the outer wall of the steel plate cylinder 101. Two sets of positioning bars 103 are symmetrically connected to both ends of the steel plate cylinder 101. Multiple positioning grooves 103a are circumferentially spaced on the inner wall of each set of positioning bars 103. Multiple aluminum water-proof strips 104 are fitted into the positioning grooves 103a on the front and rear sides, with adjacent... Each aluminum water-proof strip 104 has a water inlet 104a at its disjointed end. An arc-shaped outer protective plate 106 is sealed and welded between two adjacent sets of steel plate reinforcing strips 102. An arc-shaped corner protective plate 108 is sealed and welded between each pair of steel plate reinforcing strips 102. The steel plate cylinder 101, aluminum water-proof strips 104, arc-shaped outer protective plate 106 and arc-shaped corner protective plate 108 together form a closed S-shaped water-cooling cavity. Connecting block one 109 and connecting block two 110 are welded to the front and rear ends of each pair of steel plate reinforcing strips 102, respectively. The front cover 20 is fixedly connected to all connecting blocks 109; The rear end cover 30 is fixedly connected to all connecting blocks 110; The stator 40 is coaxially fixed to the inner side of the steel plate cylinder 101; The rotor 50 is rotatably connected between the front cover 20 and the rear cover 30 via bearings.

[0027] In this embodiment, a rubber plate 105 is provided between the aluminum water-proof strip 104 and the arc-shaped outer protective plate 106. The rubber plate 105 serves as an elastic sealing element, compensating for the assembly tolerance between the aluminum water-proof strip 104 and the arc-shaped outer protective plate 106, preventing cooling water leakage, and improving the reliability of the water cooling system.

[0028] In this embodiment, each pair of steel plate reinforcing bars 102 is symmetrically provided with a pair of water inlets 102a, and corner guards 107 are sealingly connected between adjacent water inlets 102a. The corner guards 107 seal the area of ​​the water inlets 102a, ensuring that the cooling water flows along a preset S-shaped path and avoiding local short circuits or dead zones.

[0029] In this embodiment, a nameplate holder 111 is fixedly connected to the middle of the arc-shaped outer protective plate 106 on the side. The nameplate holder 111 provides a standardized installation position, which facilitates motor information identification and maintenance management, and improves the standardization level of the product.

[0030] In this embodiment, a motor junction box 112 is fixedly connected to the front of the upper arc-shaped outer protective plate 106. The front-mounted design of the motor junction box 112 facilitates cable access and maintenance, optimizes the overall layout of the motor, and improves the convenience of installation and maintenance.

[0031] In this embodiment, a fixing plate 113 is fixedly connected to the rear of the upper arc-shaped outer protective plate 106. The fixing plate 113 is provided with a water inlet pipe 114 and a water outlet pipe 115. The rear-positioned layout of the water inlet pipe 114 and the water outlet pipe 115 avoids interference with the power line, realizes the separation of water circuit and circuit, and improves safety and wiring neatness.

[0032] In this embodiment, a lifting ring seat 116 is fixedly connected to the middle of the two pairs of upper steel plate reinforcing bars 102, and a lifting ring 117 is threadedly connected to the top of the lifting ring seat 116. The lifting rings 117 are symmetrically arranged in the center of gravity area to ensure stable lifting and prevent the motor from tilting or being damaged during transportation.

[0033] In this embodiment, a base plate 118 is fixedly connected to the lower side of the two pairs of steel plate ribs 102, and a reinforcing rib 119 is provided between the base plate 118 and the steel plate ribs 102 on the same side. The combined structure of the base plate 118 and the reinforcing rib 119 significantly improves the rigidity and torsional resistance of the motor mounting surface, ensuring that no deformation or loosening occurs during long-term operation.

[0034] The working principle of a steel plate welded structure electric motor with S-shaped water channel heat dissipation and cooling: When the motor starts, cooling water enters the S-shaped water-cooling cavity of the motor frame 10 through the inlet pipe 114. The cooling water flows along the S-shaped water channel, passing sequentially through the water inlets 104a between each pair of steel plate reinforcing bars 102, and turning between adjacent aluminum water-blocking strips 104. Corner guards 107 seal the area of ​​the water inlets 102a to ensure that the water flows along the preset path and avoids local short circuits or dead zones. During the flow, the cooling water undergoes sufficient heat exchange with the heated motor frame 101, absorbing heat and becoming high-temperature water, which is finally discharged through the outlet pipe 115.

[0035] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A steel plate welded structure electric motor with S-shaped water channel for heat dissipation and cooling, comprising a motor frame (10), a front end cover (20), a rear end cover (30), a stator (40), and a rotor (50), characterized in that, The motor base (10) includes a steel plate cylinder (101), steel plate reinforcing bars (102), positioning bars (103), and aluminum water-proof strips (104). Multiple pairs of steel plate reinforcing bars (102) are welded circumferentially to the outer wall of the steel plate cylinder (101). Two sets of positioning bars (103) are symmetrically connected to both ends of the steel plate cylinder (101). Multiple positioning grooves (103a) are provided circumferentially on the inner wall of each set of positioning bars (103). Multiple aluminum water-proof strips (104) are fitted into the positioning grooves (103a) on the front and rear sides, and adjacent two Each aluminum water-proof strip (104) has a water inlet (104a) at its separated ends. An arc-shaped outer protective plate (106) is sealed and welded between two adjacent sets of steel plate reinforcing strips (102). An arc-shaped corner protective plate (108) is sealed and welded between each pair of steel plate reinforcing strips (102). The steel plate cylinder (101), aluminum water-proof strip (104), arc-shaped outer protective plate (106) and arc-shaped corner protective plate (108) together form a closed S-shaped water-cooling cavity. Connecting block one (109) and connecting block two (110) are welded to the front and rear ends of each pair of steel plate reinforcing strips (102) respectively. The front cover (20) is fixedly connected to all connecting blocks (109); The rear end cover (30) is fixedly connected to all connecting blocks two (110); The stator (40) is coaxially fixed to the inner side of the steel plate cylinder (101); The rotor (50) is rotatably connected between the front cover (20) and the rear cover (30) via bearings.

2. The S-shaped water channel heat dissipation and cooling steel plate welded structure electric motor according to claim 1, characterized in that, A rubber sheet (105) is provided between the aluminum water-proof strip (104) and the arc-shaped outer protective plate (106).

3. The S-shaped water channel heat dissipation and cooling steel plate welded structure electric motor according to claim 1, characterized in that, Each pair of steel plate reinforcing bars (102) is symmetrically provided with a pair of water inlets (102a), and corner guards (107) are sealed between adjacent water inlets (102a).

4. The S-shaped water channel heat dissipation and cooling steel plate welded structure electric motor according to claim 1, characterized in that, A nameplate holder (111) is fixedly connected to the middle of the curved outer protective plate (106) on the side.

5. The steel plate welded structure electric motor with S-shaped water channel heat dissipation and cooling according to claim 1, characterized in that, The front of the upper arc-shaped outer protective plate (106) is fixedly connected to a motor junction box (112).

6. The steel plate welded structure electric motor with S-shaped water channel heat dissipation and cooling according to claim 1, characterized in that, A fixing plate (113) is fixedly connected to the rear of the upper arc-shaped outer protective plate (106), and the fixing plate (113) is provided with an inlet pipe (114) and an outlet pipe (115).

7. The S-shaped water channel heat dissipation and cooling steel plate welded structure electric motor according to claim 1, characterized in that, The middle of the two pairs of steel plate reinforcing bars (102) above is fixedly connected to a lifting ring seat (116), and the top of the lifting ring seat (116) is threadedly connected to a lifting ring (117).

8. The steel plate welded structure electric motor with S-shaped water channel heat dissipation and cooling according to claim 1, characterized in that, The lower sides of the two pairs of steel plate reinforcing bars (102) are fixedly connected to the base plate (118), and the base plate (118) and the steel plate reinforcing bars (102) on the same side are provided with reinforcing ribs (119).

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