Novel cooling tunnel

By combining the design of natural air cooling section and cold air cooling section, the problems of thermal stress and material deformation caused by rapid cooling in the cooling tunnel are solved, and the stability and energy saving effect of the stator are achieved.

CN223428302UActive Publication Date: 2025-10-10BEERS ENG (GUANGZHOU) CO LTD
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Patent Information

Application Number
CN202422670880.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-10-10
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

Existing cooling tunnels easily cause thermal stress and material deformation when rapidly cooling the stator, affecting the stability of the stator.

Method used

A combination of natural air cooling section and cold air cooling section is adopted. The natural air cooling section gradually cools down by extracting external natural air, and the cold air cooling section is used for supplementary cooling, reducing thermal stress and material deformation, and ensuring that the stator temperature meets the requirements.

Benefits of technology

It effectively reduces thermal stress and material deformation caused by rapid cooling, improves the stability of the stator, and has a significant energy-saving effect in winter.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223428302U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel cooling tunnel which comprises a tunnel body, a chain bed arranged on the lower side in the tunnel body, a natural air cooling section and a cold air cooling section. The natural air cooling section comprises a natural air exhaust pipe, a conveying pipe and a volute fan, the conveying pipe is arranged on the right side of the top wall of the tunnel, the natural air exhaust pipe is arranged on the right side in the tunnel, the right side of the lower end of the conveying pipe communicates with a mounting groove formed in the front side of the upper end of the natural air exhaust pipe, and the volute fan is placed on the left side of the right wall of the tunnel; the upper end of the volute fan is communicated with the left side of the lower end of the conveying pipe; and the cold air cooling section is arranged in the tunnel and is placed on the right side of the left wall of the tunnel, and the novel cooling tunnel can enable the stator to be gradually transited from a high-temperature state to a lower temperature, reduce thermal stress and material deformation caused by rapid cooling, and ensure that the temperature of the stator meets the requirement.
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Description

Technical Field

[0001] The utility model relates to the technical field of stator processing equipment, in particular to a novel cooling tunnel. Background Art

[0002] The motor stator is an important component of the motor, usually composed of windings, insulation materials and metal brackets. In the stator production process, curing is one of the key steps, which is used to harden the insulation material and fix the position of the windings. After curing, the stator needs to undergo a proper cooling process to ensure the stability of its physical and chemical properties.

[0003] During the cooling process of the solidified stator, the stator is usually placed inside the cooling tunnel, and then the driving equipment drives the cooling tunnel to rotate, thereby driving the stator to move. During the movement of the stator, the stator is cooled by cold air;

[0004] During operation, the existing cooling tunnel directly cools the stator with cold air, which can increase the cooling speed. However, rapid cooling may cause a large temperature difference between the inside and the surface of the stator, thereby causing thermal stress, which may cause the stator to deform or crack. Therefore, we propose a new cooling tunnel. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a new cooling tunnel. The front section of the tunnel is in the form of extracting external natural wind to cool the stator, which can allow the stator to gradually transition from a high temperature state to a lower temperature, reducing thermal stress and material deformation caused by rapid cooling. The rear section of the tunnel adopts cold air cooling to supplement the cooling, ensuring that the stator temperature meets the requirements, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a novel cooling tunnel, comprising a tunnel, a chain bed provided on the lower side of the interior of the tunnel, and further comprising a natural air cooling section and a cold air cooling section;

[0007] Natural wind cooling section: It includes a natural wind exhaust pipe, a delivery pipe and a volute fan. The delivery pipe is arranged on the right side of the tunnel top wall, the natural wind exhaust pipe is arranged on the right side of the tunnel interior, the right side of the lower end of the delivery pipe is connected to the installation groove arranged on the front side of the upper end of the natural wind exhaust pipe, and the volute fan is placed on the left side of the right wall of the tunnel, and the upper end of the volute fan is connected to the left side of the lower end of the delivery pipe;

[0008] Cold air cooling section: It is set inside the tunnel. The cold air cooling section is placed on the right side of the left wall of the tunnel. The front section of the tunnel extracts external natural wind to cool the stator, which can allow the stator to gradually transition from a high temperature state to a lower temperature, reducing thermal stress and material deformation caused by rapid cooling. The rear section of the tunnel uses cold air cooling to supplement the cooling to ensure that the stator temperature meets the requirements.

[0009] Furthermore, it also includes an electrical cabinet, which is placed on the front side of the front wall of the tunnel, and the input end of the electrical cabinet is electrically connected to the external power supply. The electrical cabinet is located on the rear side of the volute fan, and the input end of the volute fan is electrically connected to the output end of the electrical cabinet, which can regulate the electrical components inside the equipment.

[0010] Furthermore, the natural wind cooling section also includes a collecting pipe and an exhaust duct. The collecting pipes are respectively arranged on the right side of the tunnel. The collecting pipes are located between the lower end of the natural wind exhaust duct and the upper end of the chain bed. Ventilation holes are provided on the lower side of the relative inner side of the collecting pipe. The exhaust duct is arranged on the rear side of the tunnel top wall. The lower end of the exhaust duct is connected to the connecting groove arranged on the rear side of the upper end of the collecting pipe, which can cool the stator through hot air.

[0011] Furthermore, the cold air cooling section includes an air supply duct, a cold air exhaust duct, a return duct, a connecting pipe and a cooling box. The air supply duct is arranged on the left side of the tunnel top wall, the cold air exhaust duct is arranged on the left side inside the tunnel, the lower end of the air supply duct is connected to the avoidance groove arranged on the rear side of the upper end of the cold air exhaust duct, the return duct is arranged on the left side inside the tunnel, the return duct is located between the lower end of the cold air exhaust duct and the upper end of the chain bed, the lower side of the return duct relative to the inner side is provided with a return port, the connecting pipe is arranged on the front side of the upper end of the tunnel, the fixed groove arranged on the front side of the upper end of the return pipe is connected to the left side of the lower end of the connecting pipe, the cooling box is placed on the right side of the left wall of the tunnel, the upper end of the cooling box is connected to the right side of the lower end of the connecting pipe, the cooling box is located on the front side of the electric cabinet, and can cool the stator with cold air.

[0012] Furthermore, it also includes pneumatic lifting doors, which are all set in the entrance and exit opened on the upper side of the front end of the tunnel. The stator can be automatically lifted and lowered when entering and exiting to prevent the equipment inside the tunnel from being damaged.

[0013] Furthermore, it also includes a stop, which is set at the front side of the lower end of the chain bed. The stop plays the role of blocking and releasing, and can flexibly control the stop position and stay time of the workpiece. It will be released when the following station needs the workpiece, and will not be released if the following station has a workpiece occupying the position.

[0014] Furthermore, it also includes transverse jacking, which is respectively arranged on the rear side of the bottom wall of the tunnel, and the upper end of the transverse jacking is fixedly connected to the lower end of the chain bed. The transverse jacking can move the goods from one conveyor line to another, or change the position of the goods in the same conveying system.

[0015] Furthermore, it also includes maintenance doors, which are respectively arranged on the upper side of the inner and outer surfaces of the tunnel to facilitate subsequent maintenance work on the equipment inside the tunnel.

[0016] Compared with the existing technology, the beneficial effects of the present invention are: the new cooling tunnel has the following advantages:

[0017] 1. During the movement of the stator, the natural wind in the workshop is sent into the interior of the conveying pipe by the volute fan, and then sent into the interior of the natural wind exhaust pipe from the conveying pipe, and then discharged through the lower end of the natural wind exhaust pipe, and finally blown to the surface of the stator to achieve heat exchange, thereby initially cooling the stator. The front section of the tunnel is in the form of extracting external natural wind to cool the stator, which can allow the stator to gradually transition from a high temperature state to a lower temperature, reducing thermal stress and material deformation caused by rapid cooling. The heated air is then discharged through the exhaust pipe.

[0018] 2. When the stator moves to the left side of the tunnel, the cold air enters the air supply duct under the action of the centrifugal fan installed inside the cooling box, and is then sent from the air supply duct to the cold air exhaust duct, and then discharged through the lower end of the cold air exhaust duct, and finally blows to the surface of the stator to achieve heat exchange, thereby cooling the stator again. The rear section of the tunnel uses cold air cooling to supplement the cooling to ensure that the stator temperature meets the requirements. This method is more energy-efficient than traditional single cold air cooling, especially in winter, when outdoor cold air can be extracted, and the energy-saving effect is more obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a structural diagram of the natural wind cooling section of the utility model;

[0021] Figure 3 This is a schematic diagram of the right side cross-sectional structure of the present invention;

[0022] Figure 4 This is a schematic structural diagram of the cold air cooling section of the utility model;

[0023] Figure 5 This is a schematic diagram of the left side cross-sectional structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the right side cross-sectional plan structure of the present invention;

[0025] Figure 7 It is the left side cross section plane structure schematic view of the utility model.

[0026] In the drawing: 1 tunnel, 2 electric cabinet, 3 chain bed, 4 natural wind cooling section, 41 natural wind exhaust pipe, 42 conveying pipe, 43 collecting pipe, 44 exhaust air pipe, 45 volute fan, 5 cold wind cooling section, 51 air supply pipe, 52 cold wind exhaust pipe, 53 backflow pipe, 54 connecting pipe, 55 cooling box, 6 pneumatic lifting door, 7 stop, 8 horizontal moving jacking, 9 maintenance door. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0028] Please refer to Figure 1-7 The embodiment provides a technical scheme: a novel cooling tunnel, comprising a tunnel 1, the lower side of the tunnel 1 is provided with a chain bed 3, characterized in that: further comprising a natural wind cooling section 4 and a cold wind cooling section 5.

[0029] The natural wind cooling section 4 comprises a natural wind exhaust pipe 41, a conveying pipe 42 and a volute fan 45, the conveying pipe 42 is arranged on the right side of the top wall of the tunnel 1, the natural wind exhaust pipe 41 is arranged on the right side in the tunnel 1, the right side of the lower end of the conveying pipe 42 is communicated with the mounting groove arranged on the front side of the upper end of the natural wind exhaust pipe 41, the volute fan 45 is placed on the left side of the right wall of the tunnel 1, the upper end of the volute fan 45 is communicated with the left side of the lower end of the conveying pipe 42, the natural wind cooling section 4 further comprises a collecting pipe 43 and an exhaust air pipe 44, the collecting pipes 43 are arranged on the right side in the tunnel 1 respectively, the collecting pipes 43 are located between the lower end of the natural wind exhaust pipe 41 and the upper end of the chain bed 3, the relative inner side of the collecting pipes 43 is provided with a ventilation hole on the lower side, the exhaust air pipe 44 is arranged on the rear side of the top wall of the tunnel 1, the lower end of the exhaust air pipe 44 is communicated with the connecting groove arranged on the rear side of the upper end of the collecting pipe 43, in the process of moving the stator, the natural wind in the workshop is sent into the inside of the conveying pipe 42 by the volute fan 45, then is sent into the inside of the natural wind exhaust pipe 41 from the conveying pipe 42, then is discharged from the lower end of the natural wind exhaust pipe 41, finally is blown to the surface of the stator, heat exchange is realized, so that the stator is preliminarily cooled, the front section of the tunnel 1 is in the form of extracting external natural wind to cool and cool the stator, the air after being heated is discharged by the exhaust pipe 44;

[0030] Cold air cooling section 5: It is arranged inside the tunnel 1, and the cold air cooling section 5 is placed on the right side of the left wall of the tunnel 1. The cold air cooling section 5 includes an air supply duct 51, a cold air exhaust duct 52, a return duct 53, a connecting pipe 54 and a cooling box 55. The air supply duct 51 is arranged on the left side of the top wall of the tunnel 1, and the cold air exhaust duct 52 is arranged on the left side of the inside of the tunnel 1. The lower end of the air supply duct 51 is connected to the avoidance groove arranged on the rear side of the upper end of the cold air exhaust duct 52. The return duct 53 is arranged on the left side of the inside of the tunnel 1. The return duct 53 is located between the lower end of the cold air exhaust duct 52 and the upper end of the chain bed 3. The lower side of the return duct 53 relative to the inner side is provided with a return port. The connecting pipe 54 is arranged on the front side of the upper end of the tunnel 1. The fixed grooves arranged on the front side of the upper end of the return duct 53 are connected to the connecting The left side of the lower end of the tube 54 is connected, and the cooling box 55 is placed on the right side of the left wall of the tunnel 1. The upper end of the cooling box 55 is connected to the right side of the lower end of the connecting tube 54. The cooling box 55 is located on the front side of the electric cabinet 2. When the stator moves to the left side inside the tunnel 1, the cold air enters the interior of the air supply pipe 51 under the action of the centrifugal fan arranged inside the cooling box 55, and is then sent from the air supply pipe 51 to the interior of the cold air exhaust pipe 52, and then discharged through the lower end of the cold air exhaust pipe 52, and finally blown to the surface of the stator to realize heat exchange, thereby cooling the stator again. The rear section of the tunnel 1 uses cold air cooling to supplement the cooling to ensure that the stator temperature meets the requirements. This method is more energy-saving than traditional single cold air cooling, especially in winter, outdoor cold air can be extracted, and the energy-saving effect is more obvious.

[0031] Among them: it also includes an electric cabinet 2, which is placed on the front side of the front wall of the tunnel 1, and the input end of the electric cabinet 2 is electrically connected to the external power supply. The electric cabinet 2 is located on the rear side of the volute fan 45, and the input end of the volute fan 45 is electrically connected to the output end of the electric cabinet 2, which can regulate the electrical components inside the equipment.

[0032] Among them: it also includes a pneumatic lifting door 6, which is set in the entrance and exit opened on the upper side of the front end of the tunnel 1. The stator can be automatically lifted and lowered by external pneumatic equipment to prevent the equipment inside the tunnel 1 from being damaged.

[0033] The stopper 7 is located at the front of the lower end of the chain bed 3. It blocks and releases the workpiece, allowing flexible control of the workpiece's position and duration. It releases the workpiece if a subsequent workstation requires it, but does not release it if a workpiece is already occupied.

[0034] Among them: it also includes a transverse jacking 8, which is respectively arranged on the rear side of the bottom wall of the tunnel 1, and the upper end of the transverse jacking 8 is fixedly connected to the lower end of the chain bed 3. The transverse jacking 8 can move the goods from one conveyor line to another, or change the position of the goods in the same conveying system.

[0035] Among them, it also includes an inspection door 9, which is respectively arranged on the upper side of the inner surface and the outer surface of the tunnel 1 to facilitate subsequent inspection and maintenance of the equipment inside the tunnel 1.

[0036] The working principle of a new cooling tunnel provided by the present invention is as follows: during the operation of the new cooling tunnel, the tunnel 1 is driven to rotate by an external driving device, and then the stator that needs to be solidified is placed on the right side of the upper end of the tunnel 1, so that the stator is driven to move by the tunnel 1. During the movement of the stator, the natural wind in the workshop is sent into the interior of the delivery pipe 42 by the volute fan 45, and then sent from the delivery pipe 42 to the interior of the natural wind exhaust pipe 41, and then discharged through the lower end of the natural wind exhaust pipe 41, and finally blown to the surface of the stator to realize heat exchange, thereby performing preliminary cooling of the stator. The natural wind after use enters the collecting pipe 43 through the ventilation hole. The cold air is then discharged through the exhaust duct 44. When the stator moves to the left side of the tunnel 1, the cold air enters the interior of the air supply duct 51 under the action of the centrifugal fan arranged inside the cooling box 55, and is then sent from the air supply duct 51 to the interior of the cold air exhaust duct 52, and then discharged through the lower end of the cold air exhaust duct 52, and finally blown to the surface of the stator to realize heat exchange, thereby cooling the stator again. The cold air after use enters the interior of the return pipe 53 through the return port, and then enters the interior of the connecting pipe 54 from the return pipe 53, and finally returns to the interior of the cooling box 55 through the connecting pipe 54 for cooling. The cooled stator is finally discharged through the left side of the tunnel 1.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A novel cooling tunnel, comprising a tunnel (1), wherein a chain bed (3) is provided on the lower side of the tunnel (1), and characterized in that: It also includes a natural air cooling section (4) and a cold air cooling section (5); The natural wind cooling section (4) comprises a natural wind exhaust pipe (41), a delivery pipe (42) and a volute fan (45), wherein the delivery pipe (42) is arranged on the right side of the top wall of the tunnel (1), the natural wind exhaust pipe (41) is arranged on the right side inside the tunnel (1), the right side of the lower end of the delivery pipe (42) is connected to the mounting groove arranged on the front side of the upper end of the natural wind exhaust pipe (41), the volute fan (45) is placed on the left side of the right wall of the tunnel (1), and the upper end of the volute fan (45) is connected to the left side of the lower end of the delivery pipe (42); Cold air cooling section (5): It is arranged inside the tunnel (1), and the cold air cooling section (5) is placed on the right side of the left wall of the tunnel (1).

2. A novel cooling tunnel according to claim 1, characterized in that: The invention also includes an electric cabinet (2), which is placed on the front side of the front wall of the tunnel (1), the input end of the electric cabinet (2) is electrically connected to an external power supply, and the electric cabinet (2) is located on the rear side of the volute fan (45), and the input end of the volute fan (45) is electrically connected to the output end of the electric cabinet (2).

3. The novel cooling tunnel according to claim 1, characterized in that: The natural wind cooling section (4) further comprises a collecting pipe (43) and an exhaust air duct (44). The collecting pipes (43) are respectively arranged on the right side inside the tunnel (1). The collecting pipes (43) are located between the lower end of the natural wind exhaust pipe (41) and the upper end of the chain bed (3). Ventilation holes are provided on the lower side of the collecting pipe (43) relative to the inner side surface. The exhaust air duct (44) is arranged on the rear side of the top wall of the tunnel (1). The lower end of the exhaust air duct (44) is connected to the connecting groove provided on the rear side of the upper end of the collecting pipe (43).

4. The novel cooling tunnel according to claim 2, characterized in that: The cold air cooling section (5) comprises an air supply pipe (51), a cold air exhaust pipe (52), a return pipe (53), a connecting pipe (54) and a cooling box (55). The air supply pipe (51) is arranged on the left side of the top wall of the tunnel (1), the cold air exhaust pipe (52) is arranged on the left side inside the tunnel (1), the lower end of the air supply pipe (51) is connected to the avoidance groove arranged on the rear side of the upper end of the cold air exhaust pipe (52), and the return pipe (53) is arranged on the left side inside the tunnel (1). The return pipe (53) is located at A return port is provided between the lower end of the cold air exhaust pipe (52) and the upper end of the chain bed (3), and on the lower side of the return pipe (53) relative to the inner side. The connecting pipe (54) is provided on the front side of the upper end of the tunnel (1). The fixing grooves provided on the front side of the upper end of the return pipe (53) are connected to the left side of the lower end of the connecting pipe (54). The cooling box (55) is placed on the right side of the left wall of the tunnel (1). The upper end of the cooling box (55) is connected to the right side of the lower end of the connecting pipe (54). The cooling box (55) is located on the front side of the electric cabinet (2).

5. The novel cooling tunnel according to claim 1, characterized in that: It also includes a pneumatic lifting door (6), which is arranged in an entrance and exit opened on the upper side of the front end of the tunnel (1).

6. The novel cooling tunnel according to claim 1, characterized in that: It also includes a stopper (7), and the stopper (7) is arranged on the front side of the lower end of the chain bed (3).

7. The novel cooling tunnel according to claim 1, characterized in that: It also includes a transverse jacking (8), which is respectively arranged on the rear side of the bottom wall of the tunnel (1), and the upper ends of the transverse jacking (8) are fixedly connected to the lower end of the chain bed (3).

8. The novel cooling tunnel according to claim 1, characterized in that: It also includes inspection doors (9), which are respectively arranged on the upper sides of the inner surface and the outer surface of the tunnel (1).