Waterproof and dustproof sealing connection assembly of new energy automobile wire harness

Abstract

The utility model relates to a waterproof and dustproof sealing connection assembly of a new energy automobile wire harness, which belongs to the technical field of wiring devices and comprises a connection unit, a cover plate, a sealing assembly and a limiting assembly. A connection unit; comprising two junction boxes, a male head arranged on one junction box, a female head arranged on the other junction box and connected with the male head in an inserted mode, and two wiring terminals arranged in the two junction boxes respectively. The cover plate is movably arranged on the junction box and is in sealed connection with the junction box; the sealing assembly is arranged on the junction box and is in sealing connection with the cover plate; and the limiting assembly is arranged on the junction box and is clamped with the cover plate. According to the utility model, the cover plate can be quickly opened for wiring, complete sealing can be performed, and water and dust are prevented from entering.

Description

Technical Field

[0001] This utility model relates to the field of wiring device technology, and in particular to a waterproof and dustproof sealed connection component for wiring harnesses of new energy vehicles. Background Technology

[0002] The electrical systems of new energy vehicles are more complex than those of traditional gasoline vehicles. Wiring harnesses, as a key component of these systems, bear the important responsibility of power transmission and signal transmission. During the operation of new energy vehicles, wiring harness connection components must withstand various complex environmental conditions, such as rain and dust.

[0003] Existing wiring harness connection components for new energy vehicles have poor sealing performance, allowing water and dust to easily enter the junction box, causing oxidation and corrosion of the terminals. This affects the conductivity of the wiring harness and may even lead to short circuits and other safety hazards. Furthermore, the connection and locking mechanism between the cover and the junction box are not reliable enough, making them prone to loosening and further reducing waterproofing and dustproofing effectiveness. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a waterproof and dustproof sealing connection component for new energy vehicle wiring harnesses that allows for quick opening of the cover for wiring and provides a complete seal to prevent water and dust from entering.

[0005] The technical solution of this utility model: a waterproof and dustproof sealing connection assembly for wiring harnesses in new energy vehicles, comprising,

[0006] A connection unit includes two junction boxes, a male connector on one of the junction boxes, a female connector on the other junction box that is plugged into the male connector, and two terminals respectively located in the two junction boxes.

[0007] A cover plate is movably mounted on the junction box and is sealed in place.

[0008] A sealing assembly, disposed on the junction box and sealingly connected to the cover plate; and

[0009] A limiting component is disposed on the junction box and engages with the cover plate.

[0010] Preferably, the cover plate includes an L-shaped plate slidably disposed on the junction box, and a rotating arm disposed on the L-shaped plate and embedded in and slidably connected to the connecting unit.

[0011] Preferably, the junction box is provided with a rotating groove and a sliding groove; the rotating arm is slidably disposed in the rotating groove, and the rotating arm is provided with a slide rod slidably disposed in the sliding groove.

[0012] Preferably, both the junction box and the L-shaped plate are provided with wiring ports. The junction box is provided with a sealing groove one and a sealing groove two. The sealing assembly includes a semi-sealing ring provided on the junction box and the L-shaped plate and located at the wiring port, a sealing strip provided on the L-shaped plate and embedded in the sealing groove two, and a sealing insert plate provided on the L-shaped plate and embedded in the sealing groove one.

[0013] Preferably, the L-shaped plate is provided with a snap-fit ​​groove, and the junction box is provided with a snap-fit ​​rod; the snap-fit ​​rod has an L-shaped cross-section and can be embedded in the snap-fit ​​groove.

[0014] Preferably, the limiting assembly includes a snap-fit ​​seat disposed on the L-shaped plate, a support plate disposed on the junction box, a sliding rod slidably disposed on the support plate, a limiting block disposed on the sliding rod and embedded in the snap-fit ​​seat, and an elastic member disposed on the sliding rod and connected at both ends to the support plate and the limiting block respectively.

[0015] Preferably, the locking seat is provided with an opening groove and a guide slope, and the limiting block has a cylindrical structure.

[0016] Preferably, both the junction box and the L-shaped plate are provided with wire clamping assemblies; the wire clamping assembly includes a sliding sleeve disposed on the junction box and the L-shaped plate, a sliding post slidably disposed on the sliding sleeve, a clamping plate disposed on the sliding post, and an elastic element II disposed in the sliding sleeve and abutting against the sliding post.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] In this invention, when the L-shaped plate is closed, it causes the semi-sealing rings to close, making the two semi-sealing rings adhere to the wire harness, thus making the connection between the wire harness and the inside of the junction box tighter. The sealing strip inserted into the second sealing groove enables the side of the L-shaped plate to be effectively sealed. A sealing sticker is also provided at the connection unit where the L-shaped plate presses down to ensure the sealing effect. The sealing insert plate inserted into the first sealing groove provides a seal below the rotatable connection between the L-shaped plate and the junction box, preventing water or dust from entering the junction box from here, thereby protecting the wiring terminals and making the connection between the wiring terminals and the wire harness more reliable. The two wire harnesses are connected to the male and female connectors respectively through the wiring terminals. When the male and female connectors are plugged in, an electrical connection can be made.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0024] Figure 4 This is a structural unfolded diagram of an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the cover plate in this utility model;

[0026] Figure 6 This is a schematic diagram of the wire clamping assembly in this utility model.

[0027] Reference numerals: 1. Connecting unit; 101. Junction box; 102. Male connector; 103. Female connector; 104. Terminal block; 1011. Connection port; 1012. Rotating groove; 1013. Sliding groove; 1014. Sealing groove one; 1015. Sealing groove two; 2. Cover plate; 201. L-shaped plate; 202. Rotating arm; 203. Sliding rod; 3. Sealing assembly; 301. Semi-sealing ring; 302. Sealing strip; 303. Sealing insert plate; 4. Limiting assembly; 401. Snap-fit ​​seat; 402. Sliding rod; 403. Support plate; 404. Elastic element one; 405. Limiting block; 5. Wire clamping assembly; 501. Clamping plate; 502. Sliding sleeve; 503. Sliding column; 504. Elastic element two; 6. Snap-fit ​​rod. Detailed Implementation

[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described in more detail below by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0029] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, 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. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Example 1

[0032] like Figure 1-6 As shown, the present invention proposes a waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness, comprising a connection unit 1, a cover plate 2, a sealing assembly 3, and a limiting assembly 4.

[0033] The connection unit 1 includes two junction boxes 101, a male connector 102 disposed on one of the junction boxes 101, a female connector 103 disposed on the other junction box 101 and inserted into the male connector 102, and two terminals 104 disposed in the two junction boxes 101 respectively; a cover plate 2 is movably disposed on the junction box 101 and sealed; a sealing assembly 3 is disposed on the junction box 101 and sealed to the cover plate 2; and a limiting assembly 4 is disposed on the junction box 101 and snaps into the cover plate 2.

[0034] Both the junction box 101 and the L-shaped plate 201 are provided with wiring ports 1011. The junction box 101 is provided with a first sealing groove 1014 and a second sealing groove 1015. The sealing assembly 3 includes a semi-sealing ring 301 provided on the junction box 101 and the L-shaped plate 201 and located at the wiring port 1011, a sealing strip 302 provided on the L-shaped plate 201 and embedded in the second sealing groove 1015, and a sealing insert plate 303 provided on the L-shaped plate 201 and embedded in the first sealing groove 1014. The sealing assembly 3 can improve the sealing performance, thereby achieving the purpose of waterproofing and dustproofing.

[0035] In this embodiment, the limiting component 4 releases the limiting of the cover plate 2, allowing the L-shaped plate 201 to slide. When the L-shaped plate 201 slides, it can drive the sealing insert plate 303 to move out of the sealing groove 1014. The sealing insert plate 303 can improve the sealing between the L-shaped plate 201 and the junction box 101, and can support the L-shaped plate 201 when it is fully closed and pressed on the junction box 101. At this time, the L-shaped plate 201 can only slide and cannot be rotated by the rotating arm 202 and the sliding rod 203. Thus, the L-shaped plate 201 can be limited by the limiting component 4. With the help of the snap-fit ​​rod 6, the two ends of the L-shaped plate 201 are limited, making the connection of the L-shaped plate 201 tighter and more reliable.

[0036] Pass the wire harness through the connector 1011 and connect the wire core of the wire harness to the terminal 104. Cover with the L-shaped plate 201. The L-shaped plate 201 drives the wire clamping assembly 5 to move, so that the wire clamping assembly 5 presses the wire harness onto another wire clamping assembly 5. The wire harness is fixed by the two wire clamping assemblies 5 together, so that the outer sheath of the wire harness can withstand the tension, rather than the connection between the wire core and the terminal 104. This ensures the stability of the connection and avoids the problem of poor contact after being subjected to tension.

[0037] When the L-shaped plate 201 is closed, it causes the semi-sealing rings 301 to close, making the two semi-sealing rings 301 adhere to the wire harness, making the connection between the wire harness and the inside of the junction box 101 tighter. The sealing strip 302 inserted into the second sealing groove 1015 can effectively seal the side of the L-shaped plate 201. The L-shaped plate 201 is also provided with a sealing sticker at the connection unit 1 to ensure the sealing effect. The sealing insert 303 is inserted into the first sealing groove 1014 to provide a seal below the rotatable connection between the L-shaped plate 201 and the junction box 101, preventing water or dust from entering the junction box 101 from this point, thereby protecting the terminal 104 and making the connection between the terminal 104 and the wire harness more reliable. The two wire harnesses are connected to the male connector 102 and the female connector 103 respectively through the terminal 104. The male connector 102 and the female connector 103 are plugged in to make an electrical connection.

[0038] Example 2

[0039] like Figure 1-6 As shown, this utility model proposes a waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness. Compared to Embodiment 1, the cover plate 2 in this embodiment includes an L-shaped plate 201 slidably disposed on the junction box 101, and a rotating arm 202 disposed on the L-shaped plate 201 and embedded in the connection unit 1 and slidably connected. The junction box 101 is provided with a rotating groove 1012 and a sliding groove 1013; the rotating arm 202 is slidably disposed in the rotating groove 1012, and a slide rod 203 is provided on the rotating arm 202 and slidably disposed in the sliding groove 1013.

[0040] Both the junction box 101 and the L-shaped plate 201 are provided with wire clamping assemblies 5; the wire clamping assembly 5 includes a sliding sleeve 502 disposed on the junction box 101 and the L-shaped plate 201, a sliding post 503 slidably disposed on the sliding sleeve 502, a clamping plate 501 disposed on the sliding post 503, and an elastic element 504 disposed inside the sliding sleeve 502 and abutting against the sliding post 503.

[0041] In this embodiment, the sliding sleeve 502 is connected to the junction box 101 and the L-shaped plate 201. The elastic element 504 pushes the sliding column 503 to move, and the sliding column 503 drives the clamping plate 501 to move, so that the two clamping plates 501 can clamp the wire harness and fix it. The wire harness is supported by the outer sheath rather than by the wire core. When subjected to tension, it can protect the connection between the wire harness and the terminal 104 and prevent poor contact.

[0042] When the limiting component 4 releases its restriction on the cover plate 2, the L-shaped plate 201 can slide. When the L-shaped plate 201 causes the sealing insert 303 to separate from the junction box 101, and at this time the L-shaped plate 201 also separates from the locking rod 6, the L-shaped plate 201 can flip. The L-shaped plate 201 drives the rotating arm 202 to move, and the rotating arm 202 drives the sliding rod 203 to move, causing the sliding rod 203 to move within the sliding groove 1013. The rotating arm 202 slides within the rotating groove 1012, allowing the sliding groove 1013 to support the sliding rod 203. The slide bar 203 supports the rotating arm 202 and the L-shaped plate 201, allowing the L-shaped plate 201 to rotate and be flipped open to expose the internal wiring terminals 104 for easy wiring. After flipping the L-shaped plate 201 to close it, pushing the L-shaped plate 201 to move it causes it to engage with the snap-fit ​​rod 6 and the sealing insert 303 to be inserted into the sealing groove 1014 for sealing connection. The L-shaped plate 201 is then fixed by the limiting component 4.

[0043] Example 3

[0044] like Figure 1-6 As shown, this utility model proposes a waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness. Compared to Embodiment 1 or Embodiment 2, the limiting assembly 4 in this embodiment includes a snap-fit ​​seat 401 disposed on the L-shaped plate 201, a support plate 403 disposed on the junction box 101, a sliding rod 402 slidably disposed on the support plate 403, a limiting block 405 disposed on the sliding rod 402 and embedded in the snap-fit ​​seat 401, and an elastic element 404 disposed on the sliding rod 402 and connected at both ends to the support plate 403 and the limiting block 405 respectively. The snap-fit ​​seat 401 is provided with an opening groove and a guide slope, and the limiting block 405 has a cylindrical structure.

[0045] The L-shaped plate 201 is provided with a snap-fit ​​groove, and the junction box 101 is provided with a snap-fit ​​rod 6. The snap-fit ​​rod 6 has an L-shaped cross-section and can be embedded in the snap-fit ​​groove. When the L-shaped plate 201 is placed on the junction box 101, the snap-fit ​​rod 6 will be inserted into the snap-fit ​​groove, thereby preventing the L-shaped plate 201 from flipping directly upward. In conjunction with the limiting component 4, the L-shaped plate 201 can be better limited, and the cover plate 2 can be prevented from flipping open due to the elastic force of the sealing component 3.

[0046] In this embodiment, after the L-shaped plate 201 is flipped and pressed onto the junction box 101, it is pushed towards the male connector 102, causing the locking groove on the L-shaped plate 201 to engage with the locking rod 6. Since the locking seat 401 has a guide slope and the limiting block 405 is cylindrical, it pushes the limiting block 405 downwards, allowing the locking seat 401 to quickly move above the limiting block 405. The elastic element 404 pushes the limiting block 405 to move, the support plate 403 supports the sliding rod 402, and the sliding rod 402 supports the limiting block 405. 05 provides support, allowing the limiting block 405 to engage with the opening slot, thereby limiting the locking seat 401 and the L-shaped plate 201. This keeps the L-shaped plate 201 locked in its current position, completing the sealing and connection of the wire harness. Due to the presence of the locking rod 6, the L-shaped plate 201 cannot move directly upwards. It needs to be translated before it can rotate. The translation is blocked by the limiting block 405, preventing the L-shaped plate 201 from moving and fixing it without the need for screws.

[0047] When it is necessary to open the L-shaped plate 201, push the limiting block 405 downward to separate the limiting block 405 from the snap-fit ​​seat 401, thereby releasing the limiting of the snap-fit ​​seat 401. This allows the L-shaped plate 201 to be pushed to move horizontally. After the L-shaped plate 201 moves horizontally and the snap-fit ​​rod 6 is released, it can be flipped over, thereby opening the L-shaped plate 201 for wiring operations.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A waterproof and dustproof sealing connection assembly for wiring harnesses in new energy vehicles, characterized in that: include, The connection unit (1) includes two junction boxes (101), a male connector (102) disposed on one of the junction boxes (101), a female connector (103) disposed on the other junction box (101) and plugged into the male connector (102), and two terminals (104) disposed in the two junction boxes (101). The cover plate (2) is movably mounted on the junction box (101) and is sealed. A sealing assembly (3) is disposed on the junction box (101) and sealed to the cover plate (2); and, The limiting component (4) is disposed on the junction box (101) and snapped into the cover plate (2).

2. The waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness according to claim 1, characterized in that, The cover plate (2) includes an L-shaped plate (201) slidably disposed on the junction box (101) and a rotating arm (202) disposed on the L-shaped plate (201) and embedded in the connecting unit (1) and slidably connected.

3. The waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness according to claim 2, characterized in that, The junction box (101) is provided with a rotating groove (1012) and a sliding groove (1013); the rotating arm (202) is slidably disposed in the rotating groove (1012), and the rotating arm (202) is provided with a slide rod (203) slidably disposed in the sliding groove (1013).

4. The waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness according to claim 3, characterized in that, Both the junction box (101) and the L-shaped plate (201) are provided with a wiring port (1011). The junction box (101) is provided with a sealing groove one (1014) and a sealing groove two (1015). The sealing assembly (3) includes a semi-sealing ring (301) provided on the junction box (101) and the L-shaped plate (201) and located at the wiring port (1011), a sealing strip (302) provided on the L-shaped plate (201) and embedded in the sealing groove two (1015), and a sealing insert plate (303) provided on the L-shaped plate (201) and embedded in the sealing groove one (1014).

5. A waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness according to claim 4, characterized in that, The L-shaped plate (201) is provided with a snap-fit ​​groove, and the junction box (101) is provided with a snap-fit ​​rod (6); the cross-section of the snap-fit ​​rod (6) is L-shaped and the snap-fit ​​rod (6) can be embedded in the snap-fit ​​groove.

6. A waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness according to claim 5, characterized in that, The limiting component (4) includes a snap-fit ​​seat (401) disposed on the L-shaped plate (201), a support plate (403) disposed on the junction box (101), a sliding rod (402) slidably disposed on the support plate (403), a limiting block (405) disposed on the sliding rod (402) and embedded in the snap-fit ​​seat (401), and an elastic element (404) disposed on the sliding rod (402) and connected at both ends to the support plate (403) and the limiting block (405) respectively.

7. A waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness according to claim 6, characterized in that, The card holder (401) is provided with an opening groove and a guide slope, and the limiting block (405) has a cylindrical structure.

8. A waterproof and dustproof sealing connection assembly for a new energy vehicle wiring harness according to claim 7, characterized in that, Both the junction box (101) and the L-shaped plate (201) are provided with wire clamping assemblies (5); the wire clamping assembly (5) includes a sliding sleeve (502) provided on the junction box (101) and the L-shaped plate (201), a sliding post (503) slidably provided on the sliding sleeve (502), a clamping plate (501) provided on the sliding post (503), and an elastic element two (504) provided in the sliding sleeve (502) and abutting against the sliding post (503).

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