Motor terminal fixing device

Abstract

The utility model discloses a motor terminal fixing device, belongs to the field of mechanical connecting devices, and aims to solve the problems of loose connection, inconvenience in mounting and dismounting and the like caused by vibration of the conventional motor terminal fixing device. The device comprises a machine body, supporting legs, a hanging ring, a connecting shell, a sealing cover, a connecting table, a connecting bolt, a movable pressing plate, an extension plate, a U-shaped groove, a spring, an extrusion bolt, a sliding groove, a sliding rod, a stop rod, an adjusting bolt, a lifting block and other key components. Through reasonable structural design, in combination with the functions of tight connection of the connecting bolt and the terminal, spring compression, slide bar adjustment and the like, the terminal is effectively prevented from loosening, and the connection stability is improved; through the design of the movable pressing plate and the extension plate, mounting and dismounting are more convenient, and meanwhile the good fixing effect is kept; and through a precise adjusting mechanism, the stability of a terminal fixing angle is ensured, and the overall performance and safety of the motor are improved. The device has simple operability and high-efficiency fixing performance, and is suitable for connection requirements of various motor terminals.

Description

Technical Field

[0001] This utility model belongs to the field of motor manufacturing technology, and specifically relates to a motor terminal fixing device. Background Technology

[0002] Currently, in the field of motors, most traditional motor terminal fixing devices use threaded locking, securing the terminals with bolts. While this method ensures a secure connection, it also has some drawbacks. For example, threaded locking is prone to loosening due to vibrations generated during motor operation, which can affect motor performance and safety. Furthermore, bolt fixing is cumbersome to install and remove, requiring specialized tools and considerable force, especially during disassembly, which is inconvenient and reduces work efficiency.

[0003] To address this issue, some motor manufacturers have begun using alternative fixing devices, such as spring-loaded fixing devices. However, existing technologies still suffer from insufficient stability and lack adequate ease of installation and disassembly. While some devices attempt to incorporate movable pressure plates and U-shaped channels for connection, these still suffer from uneven spring force and poor terminal installation stability, failing to effectively prevent loosening or detachment of the connection terminals due to vibration or external forces.

[0004] Therefore, designing a simple and stable motor terminal fixing device that can improve the convenience of terminal installation and removal while preventing loosening due to vibration and other factors has become an urgent technical problem to be solved. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a motor terminal fixing device, which can realize the convenience of terminal installation and removal, and ensure the connection stability under vibration and other conditions, thus ensuring the long-term reliable operation of the motor.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A motor terminal fixing device includes a body with symmetrically arranged support legs at the bottom and a lifting ring installed at the top. A connecting housing is provided on one side of the body, the connecting housing being hollow with one side open. A sealing cover is installed at the end of the connecting housing by bolts, sealing the open end of the connecting housing. A connecting platform is provided inside the connecting housing, with three grooves symmetrically formed on both sides of the end face of the connecting platform. A connecting bolt is fixed inside the groove. A connecting terminal is installed at the end of the coil inside the body, with a through hole on the surface of the connecting terminal. The connecting terminal is sleeved on the connecting bolt, and the connecting bolt is connected to an external circuit. A movable pressure plate is rotatably installed inside the groove. An extension plate is provided at one end of the movable pressure plate that is close to each other, and a U-shaped groove is formed at the other end of the movable pressure plate. The U-shaped groove passes through the connecting bolt, and the end of the movable pressure plate near the U-shaped groove presses and fixes the connecting bolt.

[0008] Furthermore, a spring is provided on the side of the groove near the center, and a compression bolt is installed above the spring. A ball head is provided on the top of the compression bolt, and the top of the compression bolt is in contact with the lower surface of the extension plate.

[0009] Furthermore, a sliding groove is provided at the center of the surface of the connecting platform, the sliding groove is placed between the grooves on both sides, and a sliding rod is slidably installed inside the sliding groove, the sliding rod extending beyond the upper surface of the connecting platform.

[0010] Furthermore, multiple stops are symmetrically arranged on both sides of the slide bar surface, and each of the multiple stops corresponds to an extension plate.

[0011] Furthermore, an adjusting bolt is vertically rotatably installed at one end of the connecting platform, and a slotted bolt head is provided on the top of the adjusting bolt, with a lifting block screwed onto the surface of the slotted bolt head.

[0012] Furthermore, a connecting rod is hinged to one side of the lower part of the lifting block, and the end of the connecting rod opposite to the lifting block is hinged to the end of the sliding rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] First, this invention ensures the stability of the device and facilitates convenient handling by incorporating support legs at the bottom and a lifting ring at the top. The adjustability of the support legs allows the device to adapt to different motor structures, avoiding the operational inconvenience caused by instability in existing technologies. Simultaneously, the lifting ring is made of aluminum alloy, facilitating rapid hoisting during installation and transportation, thus improving the device's flexibility and application range.

[0015] Secondly, the design of the connecting housing and the sealing cap effectively prevents external contaminants from entering the connecting housing. Unlike traditional fixing devices, this invention uses high-temperature silicone sealing material in the sealing cap, further improving sealing performance and temperature resistance, thereby preventing electrical short circuits caused by contamination and changes in the external environment, and enhancing the reliability and safety of the motor system.

[0016] This invention also solves the problem of loosening of the connection terminals due to vibration in traditional threaded locking methods. By setting multiple connecting bolts and combining them with the design of a movable pressure plate, an extension plate, and a U-shaped groove, a tight connection between the connection terminals and the connecting bolts is ensured, avoiding the problem of loosening. The rotating design of the movable pressure plate not only facilitates installation and disassembly but also ensures stability during motor operation, keeping the connection terminals in a secure state at all times, greatly improving the working stability of the motor.

[0017] Furthermore, the design of the spring and the compression bolt ensures that the extension plate maintains a certain pressure at all times, effectively preventing the connection terminals from loosening during vibration. Compared with traditional fixing methods, the structure provided by this invention effectively avoids connection instability caused by external forces, ensuring consistently good electrical contact.

[0018] The combined design of the slide rail, slide rod, and stop rod in this invention solves the problem of unstable fixed angle in traditional devices. By adjusting the linkage between the bolt and the lifting block, the position of the slide rod can be precisely controlled, thereby ensuring the stability of the extension plate. The cooperation between the slide rod and the stop rod effectively prevents the extension plate from rotating, ensuring that the movable pressure plate always maintains the optimal working angle, improving the overall stability of the device, and further enhancing the reliability of the motor terminal fixing device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a front view structural diagram of the present utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the shell of this utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the movable pressure plate of this utility model;

[0023] Figure 5 For the present utility model Figure 4 A magnified structural diagram of area A;

[0024] Figure 6 This is a schematic diagram of the connection structure between the slide bar and the lifting block of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Body; 101. Lifting ring; 102. Support leg; 103. Connecting housing; 104. Connecting platform; 105. Groove; 106. Slide groove; 2. Connecting terminal; 3. Connecting bolt; 4. Spring; 5. Press bolt; 6. Movable pressure plate; 61. U-shaped groove; 62. Extension plate; 7. Adjusting bolt; 71. Slotted bolt head; 8. Slide rod; 81. Stop bar; 9. Lifting block; 10. Connecting rod; 20. Sealing cover. Detailed Implementation

[0027] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0028] refer to Figures 1-5 As shown, a motor terminal fixing device includes a body 1. Symmetrically arranged support legs 102 are located at the bottom of the body 1. The support legs 102 are made of high-strength steel to ensure the stability of the device during operation. The height of the support legs 102 is adjustable to accommodate different motor structures. A lifting ring 101 is installed on the top of the body 1. The lifting ring 101 is made of aluminum alloy, which is high-strength and lightweight, facilitating the lifting and transport of the body 1. A connecting housing 103 is located on one side of the body 1. The connecting housing 103 is made of stainless steel, which is corrosion-resistant and adaptable to high-temperature and humid conditions in the motor environment. The connecting housing 103 is hollow with one side open, facilitating the installation and maintenance of the internal coils. A sealing cover 20 is bolted to the end of the connecting housing 103, sealing the open end to prevent external substances from entering the connecting housing 103, thus preventing contamination and short circuits. The sealing cover 20 uses high-temperature silicone sealing material, which has good sealing performance and temperature resistance. The connecting housing 103 has a connecting platform 104 inside, which is used to install multiple connecting terminals 2 of the motor to ensure the stability of the electrical connection. Three grooves 105 are symmetrically formed on both sides of the end face of the connecting platform 104. Connecting bolts 3 are fixed inside the grooves 105. The connecting bolts 3 are made of copper and have excellent conductivity to ensure stable current transmission. The connecting bolts 3 in the grooves 105 are precision-machined for accurate positioning. Connecting terminals 2 are installed at the ends of the coils inside the body 1. The connecting terminals 2 are made of copper alloy and have a silver-plated surface to improve conductivity and oxidation resistance. Through holes are formed on the surface of the connecting terminals 2 to facilitate a stable connection with the connecting bolts 3. The connecting terminals 2 are sleeved on the connecting bolts 3, which are connected to the external circuit. The electrical connection is achieved through the tight fit between the connecting terminals 2 and the connecting bolts 3.

[0029] A movable pressure plate 6 is rotatably mounted inside the groove 105. The movable pressure plate 6 is supported by bearings, ensuring flexible rotation during installation and disassembly, and preventing wear. An extension plate 62 is provided at one end of the movable pressure plate 6 that is close to each other. The extension plate 62 is made of high-strength steel plate, possessing high compressive strength and wear resistance, effectively preventing loosening under vibration. A U-shaped groove 61 is provided at the other end of the movable pressure plate 6, through which the connecting bolt 3 passes, ensuring that the connecting bolt 3 can pass securely and connect to the connecting terminal 2, forming a strong electrical connection. The end of the movable pressure plate 6 near the U-shaped groove 61 presses and fixes the connecting bolt 3, ensuring that the connecting terminal 2 remains in a stable connection state during operation.

[0030] like Figure 4 and Figure 5 As shown, a spring 4 is installed near the center of the groove 105. The spring 4 is made of elastic steel to ensure good elasticity and durability. A compression bolt 5 is installed above the spring 4. The top of the compression bolt 5 is equipped with a ball head made of wear-resistant material to reduce friction loss. The top of the compression bolt 5 is in contact with the lower surface of the extension plate 62. Through the elastic force of the spring 4, the compression bolt 5 always maintains appropriate pressure on the extension plate 62, thereby ensuring that the extension plate 62 is always in a stable state.

[0031] like Figures 4-6 As shown, a groove 106 is formed at the center of the surface of the connecting platform 104. The groove 106 is positioned between two recesses 105 on both sides and is made of guide rail material to ensure smooth and unobstructed sliding. A slide rod 8 is slidably installed inside the groove 106. The slide rod 8 is made of high-strength aluminum alloy and has been treated with anti-corrosion coating to provide excellent corrosion resistance. The length and diameter of the slide rod 8 are precisely designed to ensure normal sliding under different load conditions. It extends beyond the upper surface of the connecting platform 104 to facilitate linkage operation with external components.

[0032] like Figure 6 As shown, multiple stop bars 81 are symmetrically arranged on both sides of the slide bar 8. The stop bars 81 are made of hard alloy material, which has excellent wear resistance and corrosion resistance. The multiple stop bars 81 correspond one-to-one with the extension plates 62. By moving the slide bar 8, the multiple stop bars 81 can be controlled to move to the bottom of the multiple extension plates 62, thereby preventing the extension plates 62 from rotating downwards, ensuring the stability of the tilt angle of the movable pressure plate 6, and further improving the stability of the connection terminal 2 during installation.

[0033] refer to Figure 5 and Figure 6As shown, an adjusting bolt 7 is vertically rotatably mounted on one end of the connecting platform 104. The adjusting bolt 7 is made of stainless steel, possessing corrosion resistance and sufficient strength. A slotted head 71 is provided on the top of the adjusting bolt 7, and a lifting block 9 is screwed onto the surface of the slotted head 71. The lifting block 9 is made of aluminum alloy, making it lightweight and durable. By rotating the adjusting bolt 7, the height of the lifting block 9 can be controlled, thereby adjusting the working state of the entire device. A connecting rod 10 is hinged to the lower side of one side of the lifting block 9. The connecting rod 10 is made of high-strength steel, and its end facing away from the lifting block 9 is hinged to the end of the sliding rod 8, ensuring that the movement of the sliding rod 8 can be precisely controlled through the operation of the adjusting bolt 7 and the lifting block 9, thereby achieving the positioning of the extension plate 62.

[0034] The working principle of this utility model is as follows: Connecting terminals 2 are installed at the ends of multiple internal coils. Then, according to the connection direction, the connecting terminals 2 are respectively sleeved on the connecting bolts 3. Due to the presence of spring 4, the compression bolt 5 always has an upward force. Then, the compression bolt 5 can exert an upward compression on the extension plate 62, causing the extension plate 62 to tilt outward. At this time, the U-shaped groove 61 at the other end tilts downward and passes through the connecting bolt 3. The connecting bolt 3 is pressed and fixed by the movable pressure plate 6 near the end of the U-shaped groove 61 to prevent it from falling off. Conversely, when it is necessary to disassemble, the extension plate 62 can be pressed from the outside to make the movable pressure plate 6 rotate, so that the end away from the extension plate 62 tilts up, making it easy to remove the connecting terminal 2. This improves the convenience of installing and disassembling the connecting terminal 2. Compared with the traditional threaded locking installation method, it can prevent the connecting terminal 2 from becoming loose due to vibration.

[0035] After all the connecting terminals 2 are installed in place, the extension plate 62 tilts upward and extends beyond the upper surface of the connecting platform 104. At this time, the height of the lifting block 9 is controlled by rotating the adjusting bolt 7 with a screwdriver. Then, the position of the sliding rod 8 is controlled by the connecting rod 10. When the sliding rod 8 moves, it can control the movement of multiple stop bars 81 to move to the bottom of multiple extension plates 62, so that the extension plates 62 cannot rotate downward, thereby ensuring the stability of the tilt angle of the movable pressure plate 6 and further improving the stability of the installation of the connecting terminals 2.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A motor terminal fixing device, comprising a body (1), wherein support legs (102) are symmetrically arranged at the bottom of the body (1), a lifting ring (101) is installed at the top of the body (1), and a connecting housing (103) is provided on one side of the body (1), characterized in that: The connecting housing (103) has a hollow interior with one side open. A sealing cap (20) is bolted to the end of the connecting housing (103), sealing the opening of the connecting housing (103). A connecting platform (104) is provided inside the connecting housing (103). Three grooves (105) are symmetrically provided on both sides of the end face of the connecting platform (104). A connecting bolt (3) is fixed inside the groove (105). A connecting terminal (2) is installed at the end of the coil inside the body (1). A through hole is provided on the surface of the connecting terminal (2). The connecting terminal (2) is sleeved on the connecting bolt (3). The connecting bolt (3) is connected to the external circuit. A movable pressure plate (6) is rotatably installed inside the groove (105). An extension plate (62) is provided at one end of the movable pressure plate (6) that is close to each other. A U-shaped groove (61) is provided at the other end of the movable pressure plate (6). The U-shaped groove (61) passes through the connecting bolt (3). The end of the movable pressure plate (6) close to the U-shaped groove (61) presses and fixes the connecting bolt (3).

2. The motor terminal fixing device according to claim 1, characterized in that: A spring (4) is provided on the side of the groove (105) near the center. A compression bolt (5) is installed above the inside of the spring (4). A ball head is provided on the top of the compression bolt (5). The top of the compression bolt (5) is in contact with the lower surface of the extension plate (62).

3. The motor terminal fixing device according to claim 1, characterized in that: The connecting platform (104) has a groove (106) at the center of its surface. The groove (106) is located between the grooves (105) on both sides. A sliding rod (8) is slidably installed inside the groove (106). The sliding rod (8) extends beyond the upper surface of the connecting platform (104).

4. The motor terminal fixing device according to claim 3, characterized in that: Multiple stops (81) are symmetrically arranged on both sides of the slide bar (8), and each of the multiple stops (81) corresponds to an extension plate (62).

5. The motor terminal fixing device according to claim 4, characterized in that: One end of the connecting platform (104) is vertically rotatably mounted with an adjusting bolt (7), and the top of the adjusting bolt (7) is provided with a slotted bolt head (71), and a lifting block (9) is screwed onto the surface of the slotted bolt head (71).

6. The motor terminal fixing device according to claim 5, characterized in that: A connecting rod (10) is hinged to one side of the lifting block (9), and the end of the connecting rod (10) away from the lifting block (9) is hinged to the end of the slide rod (8).

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