Wiring sealing device of water-cooled motor

Abstract

The utility model discloses a wiring sealing device of a water-cooled motor, which comprises a motor body and a motor junction box, the motor junction box comprises a waterproof junction box body and a cable fixing assembly, the waterproof junction box body is detachably connected to the outer surface of the motor body in a sealing manner, and the cable fixing assembly is connected with the waterproof junction box body in a sealing manner. The cable fixing assembly comprises a fixing head and a connecting nut, the waterproof junction box body is provided with a wire passing hole, the inner wall surface of the waterproof junction box body is provided with a clamping groove, the clamping groove is communicated with the wire passing hole, the connecting nut is located in the waterproof junction box body, and the fixing head is connected with the connecting nut. The connecting nut is clamped in the clamping groove and used for limiting rotation of the connecting nut, and the fixing head penetrates through the wire passing hole and is connected to the connecting nut. Therefore, the fixing position of the cable cannot be changed due to vibration or external force. And meanwhile, the installation convenience is improved, and the size is further reduced. The installation is convenient, the wiring process is simplified, and the stability and the sealing performance of wiring are ensured.

Description

Technical Field

[0001] This utility model relates to a wiring sealing device for a water-cooled motor. Background Technology

[0002] The wiring seal is a crucial component of the water-cooled motor. Originally, it used a metal casing with six internal terminals for 380V / 220V voltage switching. External wiring used two cable connectors for cable routing. In this design, the original metal casing lacked a proper seal, reducing the overall protection level of the water-cooled motor. While this configuration offered common voltage switching capabilities, it was not advantageous in terms of unit size and was impractical for high-end production lines such as those used in semiconductor manufacturing. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings of the existing technology. This utility model provides a wiring sealing device for a water-cooled motor.

[0004] This utility model is achieved through the following technical solution:

[0005] A wiring sealing device for a water-cooled motor includes a motor body and a motor junction box. The motor junction box includes a waterproof junction box body and a cable fixing assembly. The waterproof junction box body is detachably and sealingly connected to the outer surface of the motor body. The cable fixing assembly includes a fixing head and a connecting nut. The waterproof junction box body has a wire-passing hole. The inner wall surface of the waterproof junction box body has a groove that communicates with the wire-passing hole. The connecting nut is located inside the waterproof junction box body and is engaged in the groove to restrict the rotation of the connecting nut. The fixing head passes through the wire-passing hole and is connected to the connecting nut.

[0006] Furthermore, the waterproof junction box includes a terminal block and a cover. The bottom of the terminal block is detachably and sealed to the outer surface of the motor body. The slot and the wire hole are located on the terminal block. The cover is detachably and sealed to the top of the terminal block by a plurality of screws, so that a wiring cavity is formed between the cover and the terminal block.

[0007] Furthermore, the outer surface of the motor body has a terminal boss, and the waterproof junction box is detachably and sealed to the terminal boss.

[0008] Furthermore, the wiring sealing device of the water-cooled motor also includes a sealing pressure plate, which is pressed between the terminal boss and the waterproof junction box.

[0009] Furthermore, the inner wall surface of the waterproof junction box has protrusions at both ends of the wire passage hole, and the slot is formed between the two protrusions.

[0010] Furthermore, the cable fixing assembly has a sealing gasket.

[0011] Furthermore, a sealing ring is provided between the cable fixing assembly and the waterproof junction box.

[0012] Furthermore, the connecting nut is a hexagonal nut.

[0013] The beneficial effects of this utility model are as follows:

[0014] The wiring sealing device for this water-cooled motor uses a connecting nut that engages within a slot, preventing the nut from rotating and ensuring the cable's fixed position remains unchanged due to vibration or external force. Furthermore, the interior of the waterproof junction box eliminates the need for a wrench, allowing for tool-free installation and adjustment, improving ease of installation and further reducing size. The motor junction box is designed as a single unit mounted on the motor body, facilitating installation, simplifying the wiring process, and ensuring wiring stability and sealing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the wiring sealing device for a water-cooled motor according to an embodiment of the present invention.

[0016] Figure 2 This is a front view structural schematic diagram of the wiring sealing device for a water-cooled motor according to an embodiment of the present invention.

[0017] Figure 3 This is a partial structural schematic diagram of the motor junction box according to an embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] Motor body 1

[0020] Terminal boss 11

[0021] Motor junction box 2

[0022] Waterproof junction box 21

[0023] Card slot 211

[0024] Terminal block 212

[0025] Seat cover 213

[0026] Protrusion 214

[0027] Cable fixing assembly 22

[0028] Fixing head 221

[0029] Connecting nut 222

[0030] Sealing plate 3 Detailed Implementation

[0031] The following description of the embodiments is with reference to the accompanying drawings, which illustrate specific embodiments in which the present invention can be implemented.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment discloses a wiring sealing device for a water-cooled motor. The device includes a motor body 1 and a motor junction box 2. The junction box 2 includes a waterproof junction box body 21 and a cable fixing assembly 22. The waterproof junction box body 21 is detachably and sealingly connected to the outer surface of the motor body 1. The motor junction box 2 is installed as a single unit on the motor body 1 and serves as the power supply terminal. The motor junction box 2 is designed as a single unit for easy installation; this design simplifies the wiring process because the motor junction box 2 can be fixed and installed as a unit. After installation and fixing, the motor junction box 2 is turned outwards by 90°, possibly to ensure the stability and sealing of the wiring. It is also fixed together with the power cord in a nut during unit installation, ensuring a secure and sealed connection.

[0033] The cable fixing assembly 22 includes a fixing head 221 and a connecting nut 222. A wire-passing hole is provided on the waterproof junction box 21. The inner wall of the waterproof junction box 21 has a groove 211 that communicates with the wire-passing hole. The connecting nut 222 is located inside the waterproof junction box 21 and is engaged in the groove 211 to limit its rotation. The fixing head 221 passes through the wire-passing hole and is connected to the connecting nut 222. The cable passes through the fixing head 221 and the connecting nut 222 and is connected to the motor body 1. The function of the cable fixing assembly 22 is to fix the cable and prevent damage or detachment due to pulling. By engaging the connecting nut 222 in the groove 211, rotation of the nut is prevented, thus ensuring that the fixed position of the cable will not change due to vibration or external force. Meanwhile, the interior of the waterproof junction box 21 eliminates the need for a fixed wrench, meaning that this design allows for installation or adjustment without additional tools, improving ease of installation and further reducing the size.

[0034] The outer surface of the motor body 1 has terminal bosses 11, and a waterproof junction box 21 is detachably and sealed to the terminal bosses 11. The use of terminal bosses 11 further reduces the size and the number of units to one. Simultaneously, the detachable and sealed connection of the waterproof junction box 21 to the terminal bosses 11 ensures a stable and reliable connection.

[0035] The wiring sealing device of the water-cooled motor also includes a sealing plate 3, which is pressed between the terminal boss 11 and the waterproof junction box 21. The sealing plate 3 has a sealing reinforcement function. By placing the sealing plate 3 between the terminal boss 11 and the waterproof junction box 21, it effectively prevents dust and other impurities from entering the motor body 1 and the motor junction box 2, thereby further enhancing the sealing effect of the wiring sealing device of the water-cooled motor.

[0036] The waterproof junction box 21 includes a terminal block 212 and a cover 213. The bottom of the terminal block 212 is detachably and sealed to the outer surface of the motor body 1. A slot 211 and a wire passage hole are located on the terminal block 212. The cover 213 is detachably and sealed to the top of the terminal block 212 by multiple screws, forming a wiring cavity between the cover 213 and the terminal block 212. The cover 213 is mounted to the top of the terminal block 212 by multiple screws, facilitating installation and maintenance within the wiring cavity. Specifically, the terminal block 212 is mounted to the terminal boss 11 by multiple screws.

[0037] The waterproof junction box 21 has protrusions 214 at both ends of the wire passage hole on its inner wall surface, and a groove 211 is formed between the two protrusions 214. The overall structure is simple and easy to process and manufacture.

[0038] The connecting nut 222 is a hexagonal nut. The fixing method uses two internal protrusions 214 to fix the hexagonal nut in the slot 211, which can prevent the nut from rotating, thereby ensuring that the fixed position of the cable will not change due to vibration or external force.

[0039] The cable fixing assembly 22 has a sealing gasket inside. A sealing ring is present between the cable fixing assembly 22 and the waterproof junction box 21. The sealing gasket and sealing ring within the cable fixing assembly 22 provide overall dustproof protection, demonstrating that environmental factors have been considered in the design. The use of the sealing gasket and sealing ring prevents dust and other impurities from entering the wiring area, thereby protecting the motor and wiring from damage.

[0040] The wiring sealing device for the water-cooled motor in this embodiment improves the applicability of the original water-cooled motor in certain industries by minimizing the size of the terminal box and directly leading out three wires from the terminals. Simultaneously, the terminal locking mechanism utilizes terminal protrusions 11 to further reduce the volume and the number of protrusions is reduced to one. Finally, a sealing gasket is used to improve the overall motor sealing performance to IP55. The effects of using the wiring sealing device for the water-cooled motor are: 1. Reduced hardware size: This solution reduces the size from 120*93.5mm to 72.4*61mm, further reducing the overall size requirements and enhancing product competitiveness. 2. Reduced error rate: The fixed wiring method for corresponding voltages reduces manual verification and has a foolproof effect. 3. Increased industrial applicability: With the improved protection level, it is suitable for dusty environments and specific industrial environments. 4. Improved unit operation stability: The improved protection level reduces the impact of the environment on the product and increases its applicability.

[0041] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A wiring sealing device for a water-cooled motor, characterized in that, It includes a motor body and a motor junction box. The motor junction box includes a waterproof junction box body and a cable fixing assembly. The waterproof junction box body is detachably and sealed to the outer surface of the motor body. The cable fixing assembly includes a fixing head and a connecting nut. The waterproof junction box body has a wire-passing hole. The inner wall surface of the waterproof junction box body has a groove that communicates with the wire-passing hole. The connecting nut is located inside the waterproof junction box body and is engaged in the groove to restrict the rotation of the connecting nut. The fixing head passes through the wire-passing hole and is connected to the connecting nut.

2. The wiring sealing device for a water-cooled motor as described in claim 1, characterized in that, The waterproof junction box includes a terminal block and a cover. The bottom of the terminal block is detachably and sealed to the outer surface of the motor body. The slot and the wire hole are located on the terminal block. The cover is detachably and sealed to the top of the terminal block by a plurality of screws, so that a wiring cavity is formed between the cover and the terminal block.

3. The wiring sealing device for a water-cooled motor as described in claim 1, characterized in that, The outer surface of the motor body has a terminal boss, and the waterproof junction box is detachably and sealed to the terminal boss.

4. The wiring sealing device for a water-cooled motor as described in claim 3, characterized in that, The wiring sealing device of the water-cooled motor also includes a sealing pressure plate, which is pressed between the terminal boss and the waterproof junction box.

5. The wiring sealing device for a water-cooled motor as described in claim 1, characterized in that, The inner wall of the waterproof junction box has protrusions at both ends of the wire hole, and the groove is formed between the two protrusions.

6. The wiring sealing device for a water-cooled motor as described in claim 1, characterized in that, The cable fixing assembly has a sealing gasket.

7. The wiring sealing device for a water-cooled motor as described in claim 1, characterized in that, A sealing ring is provided between the cable fixing assembly and the waterproof junction box.

8. The wiring sealing device for a water-cooled motor as described in claim 1, characterized in that, The connecting nut is a hexagonal nut.

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