Waterproof protection device for wire outlet of motor

By designing a waterproof cover and a waterproof cap for the motor outlet, the problem of cutting fluid splashing during motor processing is solved, achieving effective waterproof protection for the outlet, ensuring the safety of motor installation and simplifying operation.

CN223858973UActive Publication Date: 2026-01-30WEIHAI GUANGWEI PRECISE MACHINERY CO LTD
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Patent Information

Application Number
CN202520360233.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-01-30
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

During the machining process, cutting fluid can easily splash from the outlet into the motor, causing a short circuit in the coil. Existing sealing methods are complex to operate and ineffective.

Method used

A waterproof protection device for the motor outlet, including a waterproof cover and a waterproof cap, was designed. The outlet is sealed by a sealing bolt and a wrench assembly, and the waterproof effect is ensured by threaded connection and sealing gasket.

Benefits of technology

It effectively prevents cutting fluid from entering the motor, reduces the risk of coil short circuits, simplifies the operation process, and improves the safety and waterproof performance of motor installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223858973U_ABST
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Abstract

The waterproof protection device comprises a waterproof cover and a waterproof cover, the bottom of the waterproof cover is provided with a first through hole, the waterproof cover is internally provided with a sealing bolt, the sealing bolt is provided with a second through hole matched with the first through hole, the sealing bolt is provided with a clamping part, and the clamping part is connected with the waterproof cover. The sealing bolt is connected with a wrench assembly, the wrench assembly is provided with an embedded part matched with the clamping part, the waterproof cover is provided with a first internal thread, and the waterproof cover is provided with a first external thread matched with the first internal thread. Compared with the prior art, the beneficial effects of the utility model are that the motor wire outlet is provided with the protective cover body which is enough to accommodate the motor wire group and has a waterproof effect on the wire outlet, and the waterproof protection of the motor wire outlet and the motor wire group is realized through the sealing of the motor wire outlet and the motor wire group, thereby reducing the probability that the interior of the motor and the motor wire group are soaked by liquid during the processing, and improving the processing efficiency. And the safety of the motor during installation is protected.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to motor field, and specifically about a motor outlet waterproof protection device. BACKGROUND

[0002] During the manufacturing process of the motor, after the coil installation inside the motor shell is completed, all power lines and temperature measuring element lines need to be stretched out to the outside of the machine base through the outlet of the machine base for power supply, and the coil and the motor shell are in complete insulation state. After the coil installation inside the motor is completed, the machine tool needs to process other positions of the motor, and cutting fluid is sprayed during the machine tool processing to help the tool cooling and lubrication.

[0003] During the processing, the cutting fluid is easy to splash into the motor from the outlet, and there is residual liquid in the motor and the wiring position. If the residual liquid is not treated in time, the coil inside the motor will be short-circuited after installation, and the coil and the shell will be electrified. The commonly used mechanical sealing method and window sealing process are processed in the way of "patching", and the operation is relatively complex. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a motor outlet waterproof protection device to solve the above problems.

[0005] In order to realize the above purpose, the utility model provides a motor outlet waterproof protection device, which comprises a waterproof cover and a waterproof cover, a first through hole is formed in the bottom of the waterproof cover, a sealing bolt is installed in the waterproof cover, a second through hole matched with the first through hole is formed in the sealing bolt, a clamping part is arranged on the sealing bolt, a wrench assembly is connected to the sealing bolt, and an embedding part matched with the clamping part is formed in the wrench assembly.

[0006] In one or more embodiments of the utility model, a first internal thread is arranged on the waterproof cover, and a first external thread matched with the first internal thread is arranged on the waterproof cover.

[0007] In one or more embodiments of the utility model, a second external thread is formed in the sealing bolt, the diameter of the first through hole is larger than that of the second external thread, a threaded part is arranged at the second external thread of the bottom of the sealing bolt, and the threaded part penetrates through the first through hole.

[0008] In one or more embodiments of the utility model, the wrench assembly comprises an installation wrench, a bayonet is formed in the installation wrench, and a clamping block matched with the bayonet is arranged on the sealing bolt.

[0009] In one or more embodiments of the utility model, a third through hole is formed in the installation wrench, and the third through hole, the second through hole and the first through hole are on the same axis.

[0010] In one or more embodiments of the utility model, the installation wrench is fixedly connected with a holding rod, and the holding rod does not penetrate through the third through hole.

[0011] In one or more embodiments of the utility model, a handle is arranged on the waterproof cover, and a plurality of convex ribs are arranged on the handle.

[0012] In one or more embodiments of the utility model, a gasket is sleeved in the handle, and the gasket is a sponge gasket.

[0013] In one or more embodiments of the utility model, a sealing gasket is arranged at the bottom of the waterproof cover, and the inner diameter of the sealing gasket is the same as the diameter of the first through hole.

[0014] In one or more embodiments of the utility model, a wire outlet hole is connected to one side of the threaded part of the sealing bolt, a second internal thread is arranged on the wire outlet hole, and the second external thread and the second internal thread are matched.

[0015] Compared with the prior art, the utility model has the beneficial effects that the protective cover body capable of accommodating the motor wire group and playing a waterproof role on the wire outlet is arranged on the motor wire outlet, the waterproof protection is realized by closing the motor wire outlet and the motor wire group, the probability of liquid wetting the inside of the motor and the motor wire group in processing is reduced, and the safety during the installation of the motor is protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a first explosion view of the motor wire outlet waterproof protection device in one embodiment of the utility model;

[0017] Figure 2 It is a second explosion view of the motor wire outlet waterproof protection device in one embodiment of the utility model;

[0018] Figure 3 It is a third explosion view of the motor wire outlet waterproof protection device in one embodiment of the utility model;

[0019] Figure 4 It is a first schematic view of the motor wire outlet waterproof protection device in one embodiment of the utility model;

[0020] Figure 5 It is a second schematic view of the motor wire outlet waterproof protection device in one embodiment of the utility model;

[0021] Figure 6 It is a third schematic view of the motor wire outlet waterproof protection device in one embodiment of the utility model.

[0022] MAIN REFERENCE NUMERALS EXPLANATION:

[0023] 1 - waterproof cover, 101 - first internal thread, 102 - first through hole, 103 - sealing gasket, 2 - waterproof cover, 201 - first external thread, 202 - handle, 2021 - convex rib, 203 - cushion block, 3 - sealing bolt, 301 - second through hole, 302 - clamping block, 303 - second external thread, 4 - installation wrench, 401 - third through hole, 402 - bayonet, 403 - holding rod, 5 - motor wire group, 6 - motor, 601 - wire outlet hole, 602 - second internal thread. DETAILED DESCRIPTION

[0024] The specific embodiments of the utility model are described in detail below with reference to the drawings, but it should be understood that the protection scope of the utility model is not limited by the specific embodiments.

[0025] Reference Figures 4-6 As shown in the figure, a motor wire outlet waterproof protection device is used for waterproof protection of a semi-finished motor with installed power supply wire and temperature measuring element wire in motor production and processing, to avoid liquid splashing into the motor interior and wire group in subsequent processing, thereby causing short circuit of the motor interior coil. The waterproof cover 1 and sealing bolt 3 are installed at the motor wire outlet, and the waterproof cover 2 is tightened by using the installation wrench 4, so as to seal and protect the wire outlet, and the motor wire outlet hole 601 is completely enclosed in the box body.

[0026] Reference Figures 1-3 As shown in the figure, the motor wire outlet waterproof protection device comprises the waterproof cover 1 and the waterproof cover 2. The waterproof cover 1 is used for covering the wire outlet hole 601 inside, and the waterproof cover 2 is manually installed on the waterproof cover 1 to seal the inside of the waterproof cover 1. The waterproof cover 1 is provided with the first through hole 102 at the bottom, and the first through hole 102 is used for passing the motor wire group 5 composed of the installed power supply wire and temperature measuring element wire in the motor. The sealing bolt 3 is installed in the waterproof cover 1, and the sealing bolt 3 is used for fixing the waterproof cover 1 on the motor 6. The sealing bolt 3 is installed on the motor 6, so that the waterproof cover 1 is fixed between the sealing bolt 3 and the motor 6, and cooperates with the waterproof cover 2 to waterproof and protect the wire outlet hole 601.

[0027] Reference Figures 1-3 As shown in the figure, the sealing bolt 3 is provided with the second through hole 301 matched with the first through hole 102. The diameters of the second through hole 301 and the first through hole 102 are greater than the diameter of the motor wire group 5, and are sufficient to accommodate the motor wire group 5 to pass through the first through hole 102 and the second through hole 301. The motor wire group 5 passes through the first through hole 102 and the second through hole 301 to enter the inside of the waterproof cover 1 and is enclosed in the inside of the waterproof cover 2, so as to waterproof and protect the motor wire group 5.

[0028] Reference Figures 1-4As shown, the sealing bolt 3 is provided with a second external thread 303, the first through hole 102 has a diameter larger than the second external thread 303, and the bottom of the sealing bolt 3 is provided with a threaded portion at the second external thread 303. The threaded portion penetrates the first through hole 102 and is inserted into the wire outlet hole 601 in the motor 6. The wire outlet hole 601 is provided with a second internal thread 602, and the second external thread 303 cooperates with the second internal thread 602. The sealing bolt 3 is installed on the motor 6 through the threaded connection of the second external thread 303 and the second internal thread 602. The sealing bolt 3 is placed in the waterproof cover 1 and the threaded portion penetrates the first through hole 102 and is inserted into the motor 6. Then, the sealing bolt 3 is tightened to tighten the waterproof cover 1 on the motor 6. The waterproof cover 1 is provided with a sealing gasket 103 at the bottom. The sealing gasket 103 is used to prevent water from seeping into the first through hole 102 when the sealing bolt 3 is tightened, thereby preventing water from splashing due to processing. The inner diameter of the sealing gasket 103 is the same as the diameter of the first through hole 102, that is, when the waterproof cover 1 is installed on the motor 6, the sealing gasket 103 will not block the motor wire set 5.

[0029] Reference Figures 1-3 As shown, the sealing bolt 3 is provided with a clamping portion, and a wrench assembly is connected to the sealing bolt 3. The wrench assembly is used to install and dismount the sealing bolt 3, and the wrench assembly is provided with an embedding portion matched with the clamping portion. The wrench assembly includes a mounting wrench 4 and a holding rod 403. The mounting wrench 4 is provided with a bayonet 402 matched with the clamping block 302 on the sealing bolt 3. By aligning the bayonet 402 on the mounting wrench 4 with the clamping block 302 on the sealing bolt 3, the clamping block 302 is inserted into the bayonet 402. Then, the mounting wrench 4 is twisted by holding the holding rod 403, thereby driving the sealing bolt 3 to rotate synchronously, so as to install and dismount the sealing bolt 3 under the cooperation of the sealing bolt 3 and the motor 6.

[0030] Reference Figures 1-3 As shown, the mounting wrench 4 is provided with a third through hole 401. The third through hole 401 is used to accommodate the motor wire set 5 when the sealing bolt 3 is installed, that is, the motor wire set 5 can penetrate the second through hole 301 and enter the third through hole 401 when the sealing bolt 3 is installed, thereby facilitating the tightening of the sealing bolt 3 without affecting the motor wire set 5 penetrating the sealing bolt 3. Meanwhile, the holding rod 403 fixedly connected to the mounting wrench 4 does not penetrate the third through hole 401, that is, the third through hole 401 in the mounting wrench 4 is sufficient to accommodate the motor wire set 5 and make it penetrate the mounting wrench 4. When the motor wire set 5 is relatively long, it can penetrate the mounting wrench 4 and pass out from one end of the holding rod 403 on the mounting wrench 4 without affecting the tightening of the sealing bolt 3 by the mounting wrench 4.

[0031] Reference Figures 1-3As shown, the third through hole 401 is in the same axis with the second through hole 301 and the first through hole 102, that is, when the sealing bolt 3 and the waterproof cover 1 are installed, the motor wire set 5 can be pulled out from the motor 6 and respectively pass through the waterproof cover 1, the sealing bolt 3 and the installation wrench 4, from the first through hole 102 to the second through hole 301 and finally from the third through hole 401. The motor wire set 5 with different lengths will not affect the installation of the waterproof cover 1 and the sealing bolt 3. After the waterproof cover 1 and the sealing bolt 3 are installed, the installation wrench 4 can be pulled out, at this time the motor wire set 5 passing through the installation wrench 4 is separated from the third through hole 401 and placed inside the waterproof cover 1 waiting for closure.

[0032] Reference Figures 1-3 As shown, the waterproof cover 1 is provided with a first internal thread 101, and the waterproof cover 2 is provided with a first external thread 201 matched with the first internal thread 101. By screwing the waterproof cover 2 into the waterproof cover 1, the installation of the waterproof cover 2 is realized under the thread cooperation of the first internal thread 101 and the first external thread 201, so that the waterproof cover 1 is kept in a closed state. The waterproof cover 2 is provided with a handle 202, which can be conveniently manually gripped and screwed, and a space sufficient to accommodate the motor wire set 5 is also provided, that is, the internal space of the handle 202 can more conveniently accommodate the motor wire set 5, without worrying about the difficulty of connecting the waterproof cover 2 and the waterproof cover 1 due to the extrusion and folding of the motor wire set 5. The handle 202 is provided with a plurality of ribs 2021 for convenient gripping and screwing, which can facilitate the manual installation of the waterproof cover 2 on the waterproof cover 1 by increasing the friction. The handle 202 is internally sleeved with a pad 203, which is a sponge pad. The pad 203 is used to protect the motor wire set 5, which will be extruded and forced to be stacked during the installation of the waterproof cover 2 on the waterproof cover 1. The pad 203 sleeved in the waterproof cover 2 can protect the exposed wire core part of the motor wire set 5, avoiding damage to the motor wire set 5 due to extrusion.

[0033] In specific use, the first through hole 102 on the waterproof cover 1 is aligned with the wire hole 601 on the motor 6, then the sealing bolt 3 is inserted from the waterproof cover 1 and the threaded part is inserted into the motor 6, the motor wire group 5 is passed out of the second through hole 301 and is inserted into the installation wrench 4, if the motor wire group 5 is long, the third through hole 401 on the installation wrench 4 can be passed out. Then the sealing bolt 3 is screwed into the wire hole 601 by using the clamping hole 402 on the installation wrench 4 and the clamping block 302 on the sealing bolt 3, at this time, the installation of the waterproof cover 1 and the sealing bolt 3 is completed, then the installation wrench 4 is pulled out, the motor wire group 5 in the installation wrench 4 is separated from the installation wrench 4. The handle 202 on the waterproof cover 2 is held by hand, the waterproof cover 2 is screwed into the waterproof cover 1 by thread cooperation, at this time, the motor wire group 5 is inserted into the handle 202 and is extruded and pushed into the waterproof cover 1 and the waterproof cover 2, after the screwing is completed, the waterproof sealing of the wire hole 601 and the motor wire group 5 is realized. When disassembly is needed, the waterproof cover 2 is manually screwed and turned, then the waterproof cover 1 and the sealing bolt 3 are disassembled by the installation wrench 4. The operation is simple, convenient to use and good in waterproof effect, the possibility that the motor wire group 5 and the motor inside are immersed in water in the motor processing can be reduced, and the safety of the motor installation is protected.

[0034] Compared with the prior art, the utility model has the beneficial effects that the protective cover body that can accommodate the motor wire group and plays the waterproof role to the wire outlet is installed on the motor wire outlet, the waterproof protection of the motor wire outlet and the motor wire group is realized through the sealing, the probability that the motor inside and the motor wire group are immersed in water in the processing is reduced, and the safety of the motor installation is protected.

[0035] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore, all the changes falling in the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0036] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A waterproof protection device for motor outlet, comprising a waterproof cover and a waterproof cover, characterized in that, The waterproof cover is provided with a first through hole in the bottom, a sealing bolt is installed in the waterproof cover, a second through hole matched with the first through hole is formed in the sealing bolt, a clamping part is arranged on the sealing bolt, a spanner assembly is connected to the sealing bolt, and an embedding part matched with the clamping part is formed in the spanner assembly.

2. The waterproof protection device for motor outlet according to claim 1, characterized in that, The waterproof cover is provided with a first internal thread, and the waterproof cover is provided with a first external thread matched with the first internal thread.

3. The waterproof protection device for motor outlet according to claim 1, characterized in that, The sealing bolt is provided with a second external thread, the diameter of the first through hole is larger than that of the second external thread, and a threaded part is arranged at the second external thread of the bottom of the sealing bolt and penetrates the first through hole.

4. The waterproof protection device for motor outlet according to claim 1, characterized in that, The spanner assembly comprises an installation spanner, the installation spanner is provided with a bayonet hole, and the sealing bolt is provided with a clamping block matched with the bayonet hole.

5. The waterproof protection device for motor outlet according to claim 4, characterized in that, The installation spanner is provided with a third through hole, and the third through hole is on the same axis as the second through hole and the first through hole.

6. The waterproof protection device for motor outlet according to claim 4, characterized in that, A holding rod is fixedly connected to the installation spanner, and the holding rod does not penetrate the third through hole.

7. The waterproof protection device for motor outlet according to claim 1, characterized in that, The waterproof cover is provided with a handle, and the handle is provided with a plurality of convex ribs.

8. The waterproof protection device for motor outlet according to claim 7, characterized in that, A pad is sleeved in the handle, and the pad is a sponge pad.

9. The waterproof protection device for motor outlet according to claim 1, characterized in that, A sealing pad is installed at the bottom of the waterproof cover, and the inner diameter of the sealing pad is the same as the diameter of the first through hole.

10. The waterproof protection device for motor outlet according to claim 3, characterized in that, A wire outlet hole is connected to one side of the threaded part of the sealing bolt, a second internal thread is formed in the wire outlet hole, and the second external thread and the second internal thread are matched.