High-efficiency moisture-proof motor heating belt integrated structure

Abstract

The utility model provides an efficient moistureproof motor heating band integrated structure, which belongs to the technical field of motor heating bands, and comprises a heating band and a straightening clamping seat, the straightening clamping seat is sleeved outside the heating band through a U-shaped groove which is provided with a penetrating inner cavity, and the straightening clamping seat is provided with a locking component which drives two locking pieces to simultaneously rotate in opposite directions. Along with winding of the heating belt, the straightening clamping seats arranged outside in a sleeving mode slide to the turning position in sequence, then the locking components drive the two locking pieces to rotate relatively, the locking pieces lock the heating belt at the position to the straightening clamping seats, and then all point positions of the heating belt are straightened in sequence along the laying route outside the motor. Therefore, the tightness of the heating belt on the outer wall of the motor is ensured, the heating belt is prevented from loosening after being used for a long time, the fitting degree of the heating belt and the outer wall of the motor is ensured, and the moisture-proof effect of the motor is further improved.

Description

Technical Field

[0001] This utility model relates to the field of motor heating belt technology, specifically to an integrated structure for a high-efficiency moisture-proof motor heating belt. Background Technology

[0002] When an electric motor operates in a humid environment, condensation will form on the coil windings due to moisture. This condensation can easily lead to decreased insulation performance, short circuits, and other faults, severely affecting its service life and operational stability. If the condensation is not evaporated in time, the insulation performance of the coil windings will be reduced, and over time, this can cause short circuits or even burnout of the motor. Therefore, it is essential to ensure that the motor is dry both inside and out during operation and shutdown to guarantee its safe and stable operation.

[0003] A related technology (publication number: CN202231583U) discloses a motor moisture-proof heating belt. The disclosed technical solution is as follows: the motor moisture-proof heating belt is wrapped around the coil winding of the motor and fixed with polyester tape. When the motor is powered off, the heating belt is energized to raise its internal temperature, thereby heating the coil winding and preventing the motor from short-circuiting or burning out. In addition, the silicone heating belt is covered with a glass fiber tube, which can provide insulation for the silicone heating belt. The copper wire is covered with a sheath, which can provide insulation and high-temperature protection for the copper wire, making it safe and reliable.

[0004] The above-disclosed technical solutions have the following problems: after the heating belt is wrapped around the outside of the motor, if the heating belt becomes loose, it will cause the internal heating wire to bend, which may lead to a safety accident. In addition, when the entire heating belt has a problem, it is impossible to determine the repair location in time, which increases the difficulty of the repair operation. In response, we propose a high-efficiency moisture-proof motor heating belt integrated structure.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the problem of motor moisture protection in the prior art, this utility model provides a highly efficient moisture-proof integrated structure for motor heating belts. It employs a segmented temperature monitoring structure combined with a highly efficient moisture-proof structure to achieve the effect of protecting the motor. The specific technical solution is as follows:

[0007] An efficient moisture-proof motor heating belt integrated structure includes a heating belt and a straightening bracket. The straightening bracket is fitted onto the outside of the heating belt through a U-shaped groove that penetrates the inner cavity. Both ends of the straightening bracket are provided with locking members, and the locking members are symmetrically rotated on the straightening bracket by an elastic reset member. The straightening bracket is provided with a locking member that drives the two locking members to rotate simultaneously in opposite directions. A nickel-chromium alloy wire is embedded inside the heating belt, and the nickel-chromium alloy wire is segmented and connected in parallel inside the inner cavity of the heating belt.

[0008] In the above technical solution, temperature sensors are uniformly arranged on the outer wall of the heating belt, and all the temperature sensors are connected in parallel to an external temperature control box.

[0009] The nickel-chromium alloy wire is wound in a parallel spiral around an insulating core material located inside the heating band.

[0010] Each segment of the nickel-chromium alloy wire is laid in a wavy shape inside the heating band.

[0011] The nickel-chromium alloy wire is covered with an insulating layer located inside the heating band.

[0012] The elastic reset component includes a movable shaft rotatably disposed at both ends of the straightening seat. The end of the movable shaft away from the straightening seat is connected to the locking member. An elastic member located between the straightening seat and the locking member is sleeved on the outer wall of the movable shaft.

[0013] The locking component has a clearance groove corresponding to the straightening seat.

[0014] The locking component includes a support fixed to the straightening seat latch, and the support is attached to the outside of the locking component. A threaded post is rotatably provided on the support, and a movable seat is threadedly connected to the outer wall of the threaded post. A push cone that penetrates the inner cavity of the support is fixed to the side wall of the movable seat.

[0015] The end of the push cone that contacts the locking member is arc-shaped.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the integrated structure of this high-efficiency moisture-proof motor heating belt:

[0017] 1. As the heating belt is wound, the straightening brackets on the outside are slid to the bends in sequence. Then, the locking mechanism drives the two locking parts to rotate relative to each other, so that the locking parts lock the heating belt at that point onto the straightening brackets. After that, the heating belt is straightened at each point along the laying route on the outside of the motor. After straightening, the laying continues, thus ensuring the tightness of the heating belt on the outer wall of the motor, preventing the heating belt from loosening after long-term use, ensuring the fit between the heating belt and the outer wall of the motor, and thus improving the moisture-proof effect of the motor.

[0018] Second, by controlling the temperature of the heating belt in segments using temperature sensors, the motor can be dehumidified in stages according to the moisture conditions at different locations, thereby improving the motor's moisture-proof effect.

[0019] Third, the parallel spiral winding of nickel-chromium alloy wires onto the insulating core material located inside the heating belt allows for uniform heat distribution. By controlling the winding spacing and number of turns, the power and heating effect of the heating belt can be precisely adjusted.

[0020] IV. When the motor is in a humid environment, the temperature sensor monitors the internal temperature of the motor in real time. Once the temperature sensor detects that the internal temperature of the motor is lower than the set starting temperature, the temperature controller immediately issues a command, and the nickel-chromium alloy wire in the heating element begins to heat up. The heat is rapidly transferred to the motor casing through the polyimide insulation layer and the adhesive mounting plate, thereby raising the internal temperature of the motor. As the temperature rises, the moisture inside the motor is gradually evaporated, thus achieving the purpose of moisture prevention.

[0021] 5. When the temperature sensor detects that the internal temperature of the motor has reached the set stop temperature, the temperature controller will promptly cut off the power to the heating element and stop heating. During motor operation, the heating element's operating status is automatically adjusted according to changes in the motor's internal temperature to ensure that the motor is always in a dry and suitable operating environment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the integrated structure of a high-efficiency moisture-proof motor heating belt according to the present invention;

[0023] Figure 2 This is a schematic diagram of the heating band and straightening bracket of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the straightening bracket part of this utility model;

[0025] Figure 4 for Figure 2 A magnified view of part A;

[0026] in, Figures 1 to 4The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-Heating belt, 2-Straightening seat, 3-U-groove, 4-Temperature sensor, 5-Support, 6-Locking component, 7-Ni-Chromium alloy wire, 8-Moving seat, 9-Push cone, 10-Threaded column, 11-Elastic component, 12-Moving shaft, 13-Relief groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] The following are specific implementation cases and appendices. Figure 1-4 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0029] A high-efficiency, moisture-proof integrated structure for a motor heating belt includes a heating belt 1 and a straightening bracket 2. The straightening bracket 2 is fitted onto the outside of the heating belt 1 through a U-shaped groove 3 that penetrates the inner cavity. The C-shaped straightening bracket 2 has transversely formed U-shaped grooves 3 penetrating the inner cavity, allowing multiple straightening brackets 2 to be sequentially fitted onto the outer wall of the heating belt 1 through the U-shaped grooves 3. Locking elements 6 are provided at both ends of the straightening bracket 2's latch, and the locking elements 6 are symmetrically rotated on the straightening bracket 2 via elastic reset members. Two locking elements 6 rotate relative to each other at both ends of the C-shaped straightening bracket 2 via elastic reset members. The straightening bracket 2 is provided with a locking member that drives the two locking elements 6 to rotate simultaneously towards each other. A nickel-chromium alloy wire 7 is embedded inside the heating belt 1, and the nickel-chromium alloy wire 7 is segmented and connected in parallel within the inner cavity of the heating belt 1.

[0030] The segmented nichrome alloy wires 7 are connected in parallel to an external temperature control box. The temperature control box controls the heating band 1 in segments, allowing for timely intervention of the corresponding segments when heating problems occur, thus improving maintenance efficiency. The nichrome alloy wires 7, as high-performance heating elements, are laid inside the heating band 1 at intervals of 3mm-6mm, and are wound in a parallel spiral around the insulating core material of the heating band. This method ensures uniform heat distribution, and by controlling the winding spacing and number of turns, the power and heating effect of the heating band 1 can be precisely adjusted.

[0031] In practice, specialized winding equipment must be used to ensure the alloy wire is tightly wound and evenly spaced to guarantee the stable performance of the heating belt. The nickel-chromium alloy wire 7 is laid in a wavy shape. This laying method increases the contact area between the alloy wire and the insulating material and the object being heated, facilitating efficient heat transfer. Simultaneously, the wavy structure can alleviate stress caused by thermal expansion and contraction of the alloy wire, improving the reliability of the heating belt. During laying, care must be taken to control the amplitude and spacing of the waves to avoid short circuits or poor contact between the alloy wires. Appropriate lengths should be left at both ends of the nickel-chromium alloy wire 7 for connection to an external power source.

[0032] As the heating belt 1 is wrapped around the outside of the motor, the straightening bracket 2, which is fitted on the outside, slides to the bend in sequence. Then, the locking mechanism drives the two locking pieces 6 to rotate relative to each other, so that the locking pieces 6 lock the heating belt 1 at this point onto the straightening bracket 2. After that, the heating belt 1 is straightened at each point along the laying route outside the motor. After straightening, the laying continues, thereby ensuring the tightness of the heating belt 1 on the outer wall of the motor, preventing the heating belt 1 from loosening after long-term use, ensuring the fit between the heating belt 1 and the outer wall of the motor, and thus improving the moisture-proof effect of the motor.

[0033] Temperature sensors 4 are evenly distributed on the outer wall of the heating band 1, and all temperature sensors 4 are connected in parallel to an external temperature control box. Temperature sensors 4 are installed on the outer wall of the heating band 1 where each parallel section of nickel-chromium alloy wire 7 is located. By controlling the temperature of the heating band 1 in segments through the temperature sensors 4, the motor can be dehumidified in segments according to the moisture conditions at different locations, thereby improving the motor's moisture-proof effect.

[0034] It is worth noting that the nickel-chromium alloy wire 7 is wound in parallel spirals on the insulating core material located inside the heating band 1. This method can make the heat evenly distributed. By controlling the spacing and number of turns of the winding, the power and heating effect of the heating band can be precisely adjusted.

[0035] Furthermore, each segment of nickel-chromium alloy wire 7 is laid in a wavy pattern within the inner cavity of the heating band 1. This laying method can increase the contact area between the alloy wire and the insulating material and the object being heated to a certain extent, which helps to facilitate efficient heat transfer. At the same time, the wavy structure can also alleviate the stress caused by thermal expansion and contraction of the alloy wire to a certain extent, improving the reliability of the heating band. For some applications requiring higher power and more uniform heating, a multi-layered nickel-chromium alloy wire 7 can be laid in an interlaced manner.

[0036] First, a layer of alloy wire is laid on the insulating core material, and then another layer is laid on top of it, with the two layers arranged alternately. This can further increase the heating area and power density of the heating element, making the heating more uniform. However, this method is relatively complex and requires strict control over the laying position and connection method of each layer of alloy wire to ensure electrical and safety performance.

[0037] The nickel-chromium alloy wire 7 is covered by an insulating layer located inside the heating band 1. This insulating layer can be made of materials such as polytetrafluoroethylene (PTFE) or silicone rubber. PTFE possesses excellent insulation properties, high-temperature resistance, and chemical stability, effectively preventing leakage accidents caused by contact between the heating element and the external environment. Silicone rubber, on the other hand, has good flexibility, high-temperature resistance, and insulation properties, allowing it to adapt to different shapes of the motor and maintain good insulation even at high temperatures.

[0038] The elastic reset component includes a movable shaft 12 rotatably disposed at both ends of the straightening seat 2, with the end of the movable shaft 12 away from the straightening seat 2 connected to the locking member 6. An elastic member 11, which can be a spring, is sleeved on the outer wall of the movable shaft 12 between the straightening seat 2 and the locking member 6.

[0039] In addition, the locking member 6 has a relief groove 13 corresponding to the straightening bracket 2. Movable shafts 12 are installed on both the left and right sides of the straightening bracket 2. The inner walls of the relief grooves 13 on the locking member 6 are connected to the movable shafts 12, allowing the locking member 6 to rotate on the straightening bracket 2 along with the movable shafts 12. The two ends of the elastic member 11 are fixed to the inner walls of the relief grooves 13 and the sides of the straightening bracket 2, respectively, and the elastic member 11 is movably sleeved on the outer wall of the movable shafts 12. During the process of removing the heating band 1 for maintenance, and during the removal of the straightening bracket 2, the locking member 6 is springed open by the elastic force of the elastic member 11, thus facilitating the operation.

[0040] Furthermore, the locking component includes a support 5 fixedly connected to the latch of the straightening seat 2, and the support 5 fits against the outer side of the locking member 6. The support 5 limits the outer side of the locking member 6. A threaded post 10 is rotatably provided on the support 5, and a movable seat 8 is threadedly connected to the outer wall of the threaded post 10. A push cone 9 that penetrates the inner cavity of the support 5 is fixedly connected to the side wall of the movable seat 8. The threaded post 10 rotates on the surface of the support 5. By rotating the threaded post 10, the externally threaded movable seat 8 drives the push cone 9 to pass through the inner cavity of the support 5 and press against the surface of the locking member 6, so that the locking member 6 is engaged with the surface of the heating band 1 as the push cone 9 moves.

[0041] The end of the push cone 9 that contacts the locking element 6 is arc-shaped. The arc-shaped surface reduces the contact area and avoids damage to the surface of the locking element 6.

[0042] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, moisture-proof integrated structure for a motor heating belt, characterized in that: The device includes a heating band (1) and a straightening bracket (2). The straightening bracket (2) is fitted onto the outside of the heating band (1) by opening a U-shaped groove (3) that penetrates the inner cavity. Both ends of the straightening bracket (2) are provided with locking members (6), and the locking members (6) are symmetrically rotated on the straightening bracket (2) by an elastic reset member. The straightening bracket (2) is provided with a locking member that drives the two locking members (6) to rotate in opposite directions at the same time. The heating band (1) is embedded with a nickel-chromium alloy wire (7), and the nickel-chromium alloy wire (7) is segmented and connected in parallel in the inner cavity of the heating band (1).

2. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 1, characterized in that: Temperature sensors (4) are evenly arranged on the outer wall of the heating belt (1), and all the temperature sensors (4) are connected in parallel to the external temperature control box.

3. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 1, characterized in that: The nickel-chromium alloy wire (7) is wound in a parallel spiral around an insulating core material located inside the heating band (1).

4. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 1, characterized in that: Each segment of the nickel-chromium alloy wire (7) is laid in a wavy shape inside the heating band (1).

5. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 1, characterized in that: The nickel-chromium alloy wire (7) is covered with an insulating layer located inside the heating band (1).

6. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 1, characterized in that: The elastic reset component includes a movable shaft (12) rotatably disposed at both ends of the straightening seat (2). The end of the movable shaft (12) away from the straightening seat (2) is connected to the locking member (6). An elastic member (11) located between the straightening seat (2) and the locking member (6) is sleeved on the outer wall of the movable shaft (12).

7. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 6, characterized in that: The locking member (6) has a relief groove (13) corresponding to the straightening bracket (2).

8. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 1, characterized in that: The locking component includes a support (5) fixedly connected to the slot of the straightening seat (2), and the support (5) is attached to the outside of the locking component (6). A threaded post (10) is rotatably provided on the support (5). A movable seat (8) is threadedly connected to the outer wall of the threaded post (10). A push cone (9) penetrating the inner cavity of the support (5) is fixedly connected to the side wall of the movable seat (8).

9. The high-efficiency moisture-proof motor heating belt integrated structure according to claim 8, characterized in that: The end of the push cone (9) that contacts the locking member (6) is arc-shaped.

Images