A rotary variable differential transformer wire harness plug protection structure

Abstract

This utility model belongs to the technical field of wire harness plug accessories, specifically relating to a protective structure for a reversible wire harness plug, including a first protective sleeve, a second protective sleeve, and a third protective sleeve connected sequentially from top to bottom. The first protective sleeve is fitted onto the outside of the socket, and a push-pull ring is provided at the bottom of the socket. The bottom of the push-pull ring is connected to the plug through a plug-in part. The second protective sleeve is fitted onto the outside of the push-pull ring, and the lower surface of the third protective sleeve is fitted to the upper surface of the plug-in part. A binding strap is provided on the outside of the first protective sleeve and along the side wall of the first protective sleeve. The first, second, and third protective sleeves completely isolate the plug and socket from the outside world, preventing moisture or dust from entering the connection between the plug and the socket, thereby ensuring system stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of wire harness plug accessories, and in particular relates to a protective structure for a reversible wire harness plug. Background Technology

[0002] The statements in this section are merely background information relating to this disclosure and do not necessarily constitute prior art.

[0003] Resolver transformers are mainly used to accurately measure the position, speed, and direction of rotation of a motor rotor and transmit this key information to the motor control system in real time, thereby achieving precise control of the motor. Because the drive motor is located under the vehicle, the resolver wiring harness plug does not have a dedicated protective device. During long-term vehicle operation, there is a risk of the protection failing, causing the vehicle to report a resolver fault, resulting in no power output and affecting driving safety.

[0004] Therefore, in order to protect the wire harness, the existing solution is to add waterproof adhesive to the end of the wire harness after installation. The adhesive application solution can provide effective protection for the installation position of the wire harness and the wire harness sheath, and reduce the vibration of the internal terminals caused by the vibration of the wire harness.

[0005] The above protective measures only protect the ends of the plug harness, but do not apply to the protection of the connection between the plug and the socket. After the plug and socket are connected, there is no space for glue to be applied at the connection. Since the connection between the plug and the socket is still exposed to the outside, dust or moisture can still enter the connection between the plug and the socket, reducing system stability. Utility Model Content

[0006] To address the aforementioned problems, this invention proposes a protective structure for a resolver harness plug. This invention also solves the technical problem of time-consuming profile replacement for the resolver harness plug protective structure.

[0007] According to some embodiments, the present invention adopts the following technical solution:

[0008] This application discloses a protective structure for a reversible wire harness plug, comprising a first protective sleeve, a second protective sleeve, and a third protective sleeve connected sequentially from top to bottom. The first protective sleeve is fitted onto the outside of a socket, and a push-pull ring is provided at the bottom of the socket. The bottom of the push-pull ring is connected to the plug through a plug-in portion. The second protective sleeve is fitted onto the outside of the push-pull ring, and the lower surface of the third protective sleeve is fitted against the upper surface of the plug-in portion. A strapping band is provided on the outside of the first protective sleeve and along the side wall of the first protective sleeve.

[0009] Further configured, the first protective sleeve is a hollow cylindrical sleeve, and the second protective sleeve is a hollow cylindrical sleeve.

[0010] Further configured, the diameter of the second protective sleeve section is larger than the diameter of the first protective section.

[0011] A further configuration is provided where a stepped groove is provided at the connection between the diameter of the second protective sleeve section and the diameter of the first protective section, and a rounded corner is provided on the stepped groove.

[0012] A further configuration is made where the diameter of the third protective sleeve cross-section is smaller than the diameter of the second protective sleeve cross-section.

[0013] Further, a gap is provided between the inner wall of the first protective sleeve and the outer wall of the socket.

[0014] Further, a gap is provided between the inner wall of the second protective sleeve and the outer wall of the push-pull ring, and a gap is provided between the inner wall of the third protective sleeve and the outer wall of the push-pull ring.

[0015] Further, a marking surface is provided on the outer side of the third protective sleeve near the insertion part.

[0016] Further configuration: the first protective sleeve, the second protective sleeve, and the third protective sleeve are integrated into one unit.

[0017] Further configured, the first protective sleeve, the second protective sleeve, and the third protective sleeve are made of rubber.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model provides a first protective sleeve for the socket, a second protective sleeve for the push-pull ring, and a third protective sleeve for the plug-in part. After installation, the lower surface of the third protective sleeve fits snugly against the upper surface of the plug-in part. At this time, the connection between the plug and socket and the plug-in part are covered by the third protective sleeve, preventing moisture and dust from entering the plug-in part. An wrapping tape is wrapped around the outside of the first protective sleeve above the socket to fix the first protective sleeve to the socket, preventing moisture and dust from entering through the gap between the socket and the first protective sleeve. The first, second, and third protective sleeves completely isolate the plug and socket from the outside world, preventing moisture or dust from entering the connection between the plug and socket, thereby ensuring system stability. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the installation structure of the plug and socket of this utility model.

[0023] Figure 3 This is a schematic structural diagram of the first protective sleeve, the second protective sleeve, and the third protective sleeve of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Socket; 2. Plug; 3. Socket part; 4. First protective sleeve; 5. Second protective sleeve; 6. Third protective sleeve; 7. Push-pull ring; 8. Lower surface of the third protective sleeve; 9. Upper surface of the socket part; 10. Wrapping tape; 11. Rounded corner; 13. Marking surface; 14. Step groove. Detailed implementation method:

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0028] Example 1

[0029] A protective structure for a resolver harness plug, as shown in the reference. Figure 1 and Figure 2 It includes a first protective sleeve 4, a second protective sleeve 5 and a third protective sleeve 6 connected from top to bottom. The first protective sleeve 4 is fitted onto the outside of the socket 1. A push-pull ring 7 is provided at the bottom of the socket 1. The bottom of the push-pull ring 7 is connected to the plug 2 through the plug part 3. The second protective sleeve 5 is fitted onto the outside of the push-pull ring 7. The lower surface 8 of the third protective sleeve is fitted to the upper surface 9 of the plug part. A strapping is provided on the outside of the first protective sleeve 4 and along the side wall of the first protective sleeve 4.

[0030] The first protective sleeve 4 is a hollow cylindrical sleeve, and the second protective sleeve 5 is a hollow cylindrical sleeve. The hollow design provides installation space for the socket 1 and the push-pull ring 7. At the same time, the cylindrical sleeve simplifies the structural complexity while ensuring the function of the connection.

[0031] Since the diameters of socket 1 and push-pull ring 7 are different, with the outer diameter of push-pull ring 7 being larger than that of socket 1, the diameter of the second protective sleeve 5 is larger than that of the first protective sleeve in order to accommodate the diameters of socket 1 and push-pull ring 7, thus adapting to the dimensions of socket 1 and push-pull ring 7.

[0032] Reference Figure 3A stepped groove 14 is provided at the connection between the diameter of the second protective sleeve 5 and the diameter of the first protective sleeve. A rounded corner 11 is provided on the stepped groove 14. Since the diameters of the second protective sleeve 5 and the first protective sleeve 4 change at the connection, and since the second protective sleeve 5 and the first protective sleeve 4 are integrally set, the stepped groove is provided. At the same time, the user can push the bottom of the stepped groove during installation, which provides friction when the user pushes the stepped groove. The rounded corner 11 improves the strength of the stepped groove and reduces the risk of fatigue fracture.

[0033] The diameter of the third protective sleeve 6 is smaller than that of the second protective sleeve 5. Since the lower surface 8 of the third protective sleeve needs to be fitted to the upper surface 9 of the insertion part, the cross-section of the third protective sleeve 6 is reduced to ensure that the upper surface 9 of the insertion part can fully support the lower surface 8 of the third protective sleeve, thereby preventing the entry of moisture or dust.

[0034] Since the first protective sleeve 4, the second protective sleeve 5, and the third protective sleeve 6 need to be manually pushed to the plug part 3 during installation, a gap is provided between the inner wall of the first protective sleeve 4 and the outer wall of the socket 1, a gap is provided between the inner wall of the second protective sleeve 5 and the outer wall of the push-pull ring 7, and a gap is provided between the inner wall of the third protective sleeve 6 and the outer wall of the push-pull ring 7 to prevent obstruction when pushing them in.

[0035] A marking surface 13 is provided on the outer side of the third protective sleeve 6 near the insertion part 3. An arrow mark can be engraved on the marking surface 13 to indicate the direction of pushing the third protective sleeve 6 into the user.

[0036] The first protective sleeve 4, the second protective sleeve 5, and the third protective sleeve 6 are integrated. In order to ensure the strength of the first protective sleeve 4, the second protective sleeve 5, and the third protective sleeve 6, as well as the sealing between the first protective sleeve 4, the second protective sleeve 5, and the third protective sleeve 6, the first protective sleeve 4, the second protective sleeve 5, and the third protective sleeve 6 can be processed into one piece using existing molding processes.

[0037] The first protective sleeve 4, the second protective sleeve 5, and the third protective sleeve 6 are made of rubber. Since the lower surface 8 of the third protective sleeve needs to be pressed onto the upper surface 9 of the plug-in part during installation, the rubber material is used to ensure that the third protective sleeve 6 has the ability to deform. At the same time, the outer side of the first protective sleeve 4 needs to be wrapped with a strap 10 to press the first protective sleeve 4 onto the side wall of the socket 1, thereby sealing the gap between the first protective sleeve 4 and the socket 1.

[0038] The installation process is as follows:

[0039] The lower surface 8 of the third protective sleeve corresponds to the upper surface 9 of the plug-in part, pushing the third protective sleeve 6 into the plug-in part 3. At this time, the lower surface 8 of the third protective sleeve corresponds to the upper surface 9 of the plug-in part. Then, the outer wall of the first protective sleeve 4 is bound with the wrapping tape 10, and the first protective sleeve 4 is deformed, pressing the first protective sleeve 4 onto the side wall of the socket 1. At this time, the first protective sleeve 4, the second protective sleeve 5 and the third protective sleeve 6 completely isolate the plug 2 and the socket 1 from the outside world, preventing moisture or dust from entering the connection between the plug 2 and the socket 1, thereby ensuring the stability of the system.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0041] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A rotary joint wire harness plug protection structure, characterized by, It includes a first protective sleeve, a second protective sleeve, and a third protective sleeve connected sequentially from top to bottom. The first protective sleeve is fitted onto the outside of the socket. A push-pull ring is provided at the bottom of the socket. The bottom of the push-pull ring is connected to the plug through the plug part. The second protective sleeve is fitted onto the outside of the push-pull ring. The lower surface of the third protective sleeve is fitted to the upper surface of the plug part. A strapping band is provided on the outside of the first protective sleeve and along the side wall of the first protective sleeve.

2. The protective structure for a resolver harness plug as described in claim 1, characterized in that, The first protective sleeve is a hollow cylindrical sleeve, and the second protective sleeve is a hollow cylindrical sleeve.

3. The protective structure for a resolver harness plug as described in claim 1, characterized in that, The diameter of the second protective sleeve section is larger than the diameter of the first protective section.

4. A rotary electrical connector assembly as defined in claim 1, wherein: A stepped groove is provided at the connection between the diameter of the second protective sleeve section and the diameter of the first protective section, and a rounded corner is provided on the stepped groove.

5. A rotary electrical connector assembly as defined in claim 1, wherein: The diameter of the third protective sleeve is smaller than that of the second protective sleeve.

6. A rotary electrical connector assembly as defined in claim 1, wherein: A gap is provided between the inner wall of the first protective sleeve and the outer wall of the socket.

7. A rotary electrical connector assembly as defined in claim 1, wherein: There is a gap between the inner wall of the second protective sleeve and the outer wall of the push-pull ring, and there is a gap between the inner wall of the third protective sleeve and the outer wall of the push-pull ring.

8. A rotary electrical connector assembly as defined in claim 1, wherein: The third protective sleeve has a marking surface on its outer side near the insertion part.

9. A rotary electrical connector assembly as defined in claim 1, wherein: The first protective sleeve, the second protective sleeve, and the third protective sleeve are integrated into one unit.

10. A rotary electrical connector assembly as defined in claim 1, wherein: The first protective sleeve, the second protective sleeve, and the third protective sleeve are made of rubber.

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