High-waterproof-grade plug connector structure of automobile cooling fan

Abstract

The utility model belongs to the technical field of plug connectors, and relates to a high-waterproof-grade plug connector structure of an automobile cooling fan. The plug connector comprises a plug connector body, two ends of the plug connector body are respectively provided with a bearing installation portion and a wire harness fixing portion, an insulation waterproof structure is arranged above the wire harness fixing portion, the bottom of the plug connector body is provided with a lower positioning connecting piece, and a buckling piece protruding block is arranged between the plug connector body and the wire harness fixing portion. In the using process, the insulation waterproof covering body, the sealing plug alignment groove and the insulation waterproof plug jointly form a multi-layer waterproof barrier, the waterproof grade is greatly improved, and safety and stability of circuit connection of the cooling fan in a humid environment are guaranteed; the wiring harness is firmly fixed and can bear a certain tensile force without damaging a waterproof structure through the synergistic effect of the accurate buckling piece protruding block, the wiring harness fixing groove, the screw connecting hole, the upper positioning connecting piece and the lower positioning connecting piece, and the requirement for wiring harness connection stability under the complex driving condition of an automobile is met through a wiring harness tensile force test.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology and relates to a high waterproof connector structure for automotive cooling fans. Background Technology

[0002] During vehicle operation, the cooling fan plays a crucial role in maintaining the engine's normal operating temperature. Due to the complex and variable operating environment of automobiles, the cooling fan connectors are frequently exposed to humid or even water-stained environments. Traditional connectors have low waterproof ratings, allowing moisture to easily seep in, leading to short circuits, affecting the normal operation of the cooling fan, and ultimately threatening engine safety. Simultaneously, vibrations and bumps during vehicle operation apply tensile stress to the wiring harness connections; the waterproof structure of ordinary connectors can be damaged under certain stress, significantly reducing their waterproof performance. Furthermore, the motor bearings, as important rotating components of the cooling fan, experience accelerated wear once water enters, severely shortening the cooling fan's lifespan and reducing its efficiency. Therefore, there is an urgent need to design a high-waterproof connector structure for automotive cooling fans that can overcome these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a connector structure, controller, and automotive engine cooling fan [Application No.: 201921153785.0]. In this connector structure, a partition assembly is connected to one end of the connector body. The partition assembly can be inserted into a groove on the top edge of the controller to form a completely closed sealing groove. The top cover is fastened to the controller housing. However, during use, moisture can still easily seep into the interior, causing short-circuit faults and affecting the normal operation of the cooling fan. Furthermore, it has the drawback that its waterproof performance is greatly reduced once subjected to tensile force. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a high-waterproof connector structure for automotive cooling fans.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-waterproof connector structure for an automotive cooling fan includes a connector body, with a bearing mounting portion and a wiring harness fixing portion at both ends of the connector body. An insulating and waterproof structure is provided above the wiring harness fixing portion, and a lower positioning connector is provided at the bottom of the connector body. A fastening protrusion is provided between the connector body and the wiring harness fixing portion.

[0007] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the insulating and waterproof structure includes an insulating and waterproof cover disposed above the wiring harness fixing part, and two sealing plug alignment grooves are formed in the insulating and waterproof cover.

[0008] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the top of the insulating waterproof cover is provided with an upper positioning connector, and the upper positioning connector and the lower positioning connector are located on the same vertical line.

[0009] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the upper positioning connector includes an upper positioning buckle plate disposed on the top of the insulating waterproof cover, and an upper positioning through groove is provided in the upper positioning buckle plate.

[0010] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the upper positioning buckle plate is provided with an upper positioning buckle block corresponding to the position of the upper positioning through slot.

[0011] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the bearing mounting part includes a bearing mounting chamber disposed at one end of the connector body.

[0012] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the wiring harness fixing part includes a wiring harness fixing block disposed at the other end of the connector body, and the wiring harness fixing block has a plurality of wiring harness fixing grooves.

[0013] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the fastening protrusion is located at the bottom of the wiring harness fixing block, and the wiring harness fixing block is also provided with several screw connection holes, with the wiring harness fixing groove and screw connection holes arranged alternately.

[0014] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the lower positioning connector includes a lower positioning buckle plate disposed at the bottom of the connector body, and the lower positioning buckle plate is provided with a lower positioning through groove and a lower positioning buckle block.

[0015] In the above-mentioned high waterproof rating connector structure for automotive cooling fans, the top of the connector body is provided with a centered alignment protrusion.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. In use, this utility model constructs a multi-layered waterproof barrier through the insulating waterproof cover, the sealing plug alignment groove, and the insulating waterproof plug, which greatly improves the waterproof level and ensures the safety and stability of the cooling fan circuit connection in humid environments.

[0018] 2. This utility model uses the coordinated action of the fastening protrusion, the wire harness fixing groove, the screw connection hole, and the upper and lower positioning connectors to make the wire harness firmly fixed and able to withstand a certain tensile force without damaging the waterproof structure. Through wire harness tensile force testing, it meets the requirements for the stability of wire harness connection under complex driving conditions of automobiles.

[0019] 3. This utility model effectively prevents moisture from entering the motor bearing through the design of the bearing mounting chamber and the treatment of the inner wall with waterproof grease, reducing the wear of the bearing caused by water erosion, extending the service life of the motor bearing, and improving the working efficiency and reliability of the cooling fan.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

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

[0022] Figure 2 This is a structural schematic diagram of another aspect of this utility model.

[0023] Figure 3 This is a structural schematic diagram of another aspect of this utility model.

[0024] Figure 4 This is a structural schematic diagram of another aspect of this utility model.

[0025] In the diagram: 1. Connector body; 2. Bearing mounting part; 3. Wire harness fixing part; 4. Insulation and waterproof structure; 5. Lower positioning connector; 6. Alignment protrusion; 7. Insulation and waterproof cover; 8. Sealing plug alignment groove; 9. Upper positioning connector; 10. Upper positioning buckle plate; 11. Upper positioning through groove; 12. Upper positioning buckle block; 13. Bearing mounting chamber; 14. Wire harness fixing block; 15. Wire harness fixing groove; 16. Screw connection hole; 17. Lower positioning buckle plate; 18. Lower positioning through groove; 19. Lower positioning buckle block; 20. Centering alignment protrusion. Detailed Implementation

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

[0027] like Figure 1-4 As shown, a high waterproof rating connector structure for an automotive cooling fan includes a connector body 1. The connector body 1 has a bearing mounting part 2 and a wiring harness fixing part 3 at both ends. An insulating waterproof structure 4 is provided above the wiring harness fixing part 3. A lower positioning connector 5 is provided at the bottom of the connector body 1. A fastening protrusion 6 is provided between the connector body 1 and the wiring harness fixing part 3.

[0028] In this embodiment, the connector body 1 serves as the main structure. The bearing mounting part 2 at one end is used to install the motor bearing, providing a support base for the motor rotation. The wire harness fixing part 3 at the other end is used to fix the wire harness. The insulating and waterproof structure 4 tightly covers the wire harness fixing part 3, providing waterproofing. The lower positioning connector 5 is located at the bottom of the connector body 1 and is used for positioning and connecting with other vehicle components. The alignment protrusion 6 is set between the connector body 1 and the wire harness fixing part 3, helping the wire harness fixing part 3 to be accurately installed on the connector body 1. This structural design enables the connector to have multiple functions. The bearing mounting part 2 ensures that the motor can rotate stably, the wire harness fixing part 3 ensures the reliability of the circuit connection, the insulating and waterproof structure 4 prevents water from entering the circuit and causing short circuits and other faults, the lower positioning connector 5 facilitates accurate installation of the connector, and the alignment protrusion 6 enhances the stability of the connection between the wire harness fixing part 3 and the connector body 1.

[0029] Combination Figure 1-4 As shown, the insulating and waterproof structure 4 includes an insulating and waterproof cover 7 disposed above the wire harness fixing part 3, and two sealing plug alignment grooves 8 are formed inside the insulating and waterproof cover 7.

[0030] Specifically, the insulating and waterproof cover 7 is made of highly elastic and aging-resistant rubber material, which fits tightly against the top of the wire harness fixing part 3. The sealing plug alignment groove 8 is opened in the insulating and waterproof cover 7 for precise positioning and installation of the insulating and waterproof plug (not shown in the figure). After the insulating and waterproof plug is installed, it can effectively prevent moisture from entering from the connection between the wire harness and the wire harness fixing part 3. The insulating and waterproof cover 7, together with the sealing plug alignment groove 8 and the insulating and waterproof plug, forms a multi-layer waterproof barrier, which greatly improves the waterproof level of the connector and ensures the safe and stable operation of the cooling fan circuit connection in a humid environment.

[0031] The top of the insulating and waterproof cover 7 is provided with an upper positioning connector 9, and the upper positioning connector 9 and the lower positioning connector 5 are located on the same vertical line.

[0032] In this embodiment, the upper positioning connector 9 is located at the top of the insulating and waterproof cover 7, and the lower positioning connector 5 is located at the bottom of the connector body 1. Both are on the same vertical line. During installation, the upper positioning connector 9 and the lower positioning connector 5 can be positioned and connected to the corresponding installation parts on the upper and lower parts of the vehicle, so that the connector is accurately positioned and installed in the vertical direction. The design of the upper and lower positioning connectors on the same vertical line facilitates the quick and accurate positioning and connection of the connector to the relevant parts of the vehicle, enhances the firmness of the connection, and ensures that the insulating and waterproof structure can remain stable when subjected to external force without affecting the waterproof performance.

[0033] Combination Figure 3 , Figure 4As shown, the upper positioning connector 9 includes an upper positioning buckle plate 10 disposed on the top of the insulating waterproof cover 7, and an upper positioning through groove 11 is provided in the upper positioning buckle plate 10.

[0034] In this embodiment, the upper positioning buckle 10 is fixed to the top of the insulating waterproof cover 7, and the upper positioning through groove 11 is opened in the upper positioning buckle 10. During the installation process, the corresponding mounting component above the vehicle can be connected to the upper positioning buckle 10 through the upper positioning through groove 11 to fix the upper positioning connector 9 to the vehicle component. The design of the upper positioning buckle 10 and the upper positioning through groove 11 provides a convenient and stable way to connect the upper positioning connector 9 to the mounting component above the vehicle, which helps to improve the accuracy and firmness of the overall installation of the connector.

[0035] The upper positioning buckle plate 10 is provided with an upper positioning buckle block 12 corresponding to the position of the upper positioning through slot 11.

[0036] In this embodiment, the upper positioning buckle 12 is disposed within the upper positioning buckle plate 10 and corresponds to the position of the upper positioning through groove 11. When the component mounted on the vehicle is connected to the upper positioning buckle plate 10 through the upper positioning through groove 11, the upper positioning buckle 12 can further cooperate with the component to fasten it and prevent the connection from loosening. The upper positioning buckle 12 enhances the stability of the connection between the upper positioning connector 9 and the vehicle mounting component, improves the stability of the connector during use, and reduces the risk of connection loosening caused by factors such as vehicle vibration.

[0037] Combination Figure 1-2 As shown, the bearing mounting part 2 includes a bearing mounting chamber 13 disposed at one end of the connector body 1.

[0038] In this embodiment, the bearing mounting chamber 13 is located at one end of the connector body 1, and its size and shape are precisely adapted to the motor bearing. When installing the motor bearing, the motor bearing can be tightly embedded in the bearing mounting chamber 13, achieving precise positioning and stable support. The bearing mounting chamber 13 provides a stable mounting position for the motor bearing, ensuring that the motor can rotate stably. At the same time, its precise adaptation design helps to reduce vibration during motor operation and improve the working efficiency of the cooling fan.

[0039] The wire harness fixing part 3 includes a wire harness fixing block 14 disposed at the other end of the connector body 1, and the wire harness fixing block 14 is provided with a plurality of wire harness fixing grooves 15.

[0040] In this embodiment, the wire harness fixing block 14 is disposed at the other end of the connector body 1, and the wire harness fixing groove 15 is formed within the wire harness fixing block 14. When installing the wire harness, the wire harness can be placed into the wire harness fixing groove 15 according to the corresponding specifications. Through the constraint of the wire harness fixing groove 15, the wire harness is tightly fixed to the wire harness fixing block 14. The design of the wire harness fixing groove 15 enables the wire harness to be firmly fixed, preventing the wire harness from shaking or falling off during vehicle operation, ensuring the reliability of the circuit connection, and ensuring the normal operation of the cooling fan.

[0041] Combination Figure 4 As shown, the fastening protrusion 6 is disposed at the bottom of the wire harness fixing block 14, and the wire harness fixing block 14 is also provided with a plurality of screw connection holes 16, and the wire harness fixing groove 15 and the screw connection holes 16 are arranged alternately.

[0042] In this embodiment, the aligning protrusion 6 is located at the bottom of the wire harness fixing block 14 and cooperates with the connector body 1 to achieve precise positioning when installing the wire harness fixing block 14. The screw connection hole 16 is opened inside the wire harness fixing block 14 and is staggered with the wire harness fixing groove 15. By installing screws in the screw connection hole 16, the wire harness fixing block 14 can be more firmly fixed to the vehicle-related components. The aligning protrusion 6 enhances the stability of the connection between the wire harness fixing block 14 and the connector body 1. The staggered arrangement of the screw connection hole 16 and the wire harness fixing groove 15 ensures the wire harness fixing effect without affecting the screw installation and tightening, improves the utilization rate of structural space, and further ensures the stability of the wire harness connection.

[0043] Combination Figure 1-2 As shown, the lower positioning connector 5 includes a lower positioning buckle plate 17 disposed at the bottom of the connector body 1, and the lower positioning buckle plate 17 is provided with a lower positioning through groove 18 and a lower positioning buckle block 19.

[0044] In this embodiment, the lower positioning buckle plate 17 is fixed to the bottom of the connector body 1, and the lower positioning through groove 18 and the lower positioning buckle block 19 are disposed in the lower positioning buckle plate 17. During installation, the corresponding mounting component under the vehicle can be connected to the lower positioning buckle plate 17 through the lower positioning through groove 18, and the lower positioning buckle block 19 further cooperates with the mounting component to achieve a tight connection. The lower positioning buckle plate 17, the lower positioning through groove 18 and the lower positioning buckle block 19 work together to facilitate the positioning connection between the connector and the mounting component under the vehicle, enhance the firmness of the connection, and ensure that the connector is stable and reliable during vehicle operation.

[0045] Combination Figure 1-2 As shown, the top of the connector body 1 is provided with a centering alignment protrusion 20.

[0046] In this embodiment, the centering alignment protrusion 20 is located at the top of the connector body 1. During the installation process, the connector body 1 can be accurately centered in the horizontal direction by cooperating with the relevant installation position of the vehicle. The centering alignment protrusion 20 improves the accuracy and efficiency of connector installation, helps to ensure the stability of the entire cooling fan system installation, and avoids failures caused by connector installation deviation.

[0047] The working principle of this utility model is as follows:

[0048] In the actual installation process, firstly, the motor bearing is accurately installed in the bearing mounting chamber 13 of the bearing mounting part 2, ensuring a firm installation and smooth rotation. Next, the wire harness is placed into the wire harness fixing groove 15 of the wire harness fixing part 3 according to the corresponding specifications. The wire harness fixing block 14 is accurately connected to the connector body 1 using the fastening protrusion 6. Then, the wire harness fixing block 14 is further tightened by installing screws in the screw connection hole 16. Subsequently, the insulating and waterproof cover 7 is placed over the wire harness fixing part 3, so that the sealing plug alignment groove 8 is accurately aligned with the wire harness exit position. The insulating and waterproof plug is then installed. At this time, the upper positioning connector 9 is positioned and connected to the corresponding mounting component above the vehicle through the upper positioning buckle plate 10, the upper positioning through groove 11, and the upper positioning buckle block 12. At the same time, the lower positioning connector 5 is positioned and connected to the mounting component below the vehicle through the lower positioning buckle plate 17, the lower positioning through groove 18, and the lower positioning buckle block 19, ensuring that the connector installation position is accurate and firm.

[0049] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0050] Although this document frequently uses terms such as connector body 1, bearing mounting part 2, wire harness fixing part 3, insulating and waterproof structure 4, lower positioning connector 5, fastening protrusion 6, insulating and waterproof cover 7, sealing plug alignment groove 8, upper positioning connector 9, upper positioning buckle plate 10, upper positioning through groove 11, upper positioning buckle block 12, bearing mounting chamber 13, wire harness fixing block 14, wire harness fixing groove 15, screw connection hole 16, lower positioning buckle plate 17, lower positioning through groove 18, lower positioning buckle block 19, and centering alignment protrusion 20, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A high-waterproof connector structure for an automotive cooling fan, comprising a connector body (1), characterized in that, The connector body (1) has a bearing mounting part (2) and a wire harness fixing part (3) at both ends. The wire harness fixing part (3) has an insulating and waterproof structure (4) above it. The connector body (1) has a lower positioning connector (5) at the bottom. The connector body (1) and the wire harness fixing part (3) have a fastening protrusion (6).

2. The high waterproof rating connector structure for automotive cooling fans according to claim 1, characterized in that, The insulating and waterproof structure (4) includes an insulating and waterproof cover (7) disposed above the wire harness fixing part (3), and two sealing plug alignment grooves (8) are provided in the insulating and waterproof cover (7).

3. The high waterproof rating connector structure for automotive cooling fans according to claim 2, characterized in that, The top of the insulating and waterproof cover (7) is provided with an upper positioning connector (9), and the upper positioning connector (9) and the lower positioning connector (5) are located on the same vertical line.

4. The high waterproof rating connector structure for automotive cooling fans according to claim 3, characterized in that, The upper positioning connector (9) includes an upper positioning buckle plate (10) disposed on the top of the insulating waterproof cover (7), and an upper positioning through groove (11) is provided in the upper positioning buckle plate (10).

5. The high waterproof rating connector structure for automotive cooling fans according to claim 4, characterized in that, The upper positioning buckle plate (10) is provided with an upper positioning buckle block (12) corresponding to the position of the upper positioning through groove (11).

6. The high waterproof rating connector structure for an automotive cooling fan according to claim 5, characterized in that, The bearing mounting part (2) includes a bearing mounting chamber (13) disposed at one end of the connector body (1).

7. The high waterproof rating connector structure for automotive cooling fans according to claim 6, characterized in that, The wire harness fixing part (3) includes a wire harness fixing block (14) disposed at the other end of the connector body (1), and the wire harness fixing block (14) is provided with a plurality of wire harness fixing grooves (15).

8. The high waterproof rating connector structure for an automotive cooling fan according to claim 7, characterized in that, The fastening protrusion (6) is located at the bottom of the wire harness fixing block (14). The wire harness fixing block (14) is also provided with a plurality of screw connection holes (16). The wire harness fixing groove (15) and the screw connection holes (16) are arranged alternately.

9. The high waterproof rating connector structure for an automotive cooling fan according to claim 8, characterized in that, The lower positioning connector (5) includes a lower positioning buckle plate (17) disposed at the bottom of the connector body (1), and the lower positioning buckle plate (17) is provided with a lower positioning through groove (18) and a lower positioning buckle block (19).

10. The high waterproof rating connector structure for an automotive cooling fan according to claim 9, characterized in that, The top of the connector body (1) is provided with a centering alignment protrusion (20).

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