Sealed wire harness

Abstract

The utility model relates to a sealed wire harness. The sealed wire harness comprises a connector, a metal terminal, a lead and a sealing assembly. The connector is provided with a plurality of terminal grooves and a plurality of first clamping hooks. The sealing assembly comprises a first sealing piece and a second sealing piece which are spliced with each other. The first sealing piece is in an inverted-T shape and comprises a first stopping part and a first sealing part. And the periphery of the first stopping part is clamped with the first clamping hook. The second sealing piece is in a concave shape and comprises a second stopping part and a second sealing part. And the periphery of the second stopping part is clamped with the first clamping hook. And the outer side of the joint of the first sealing part and the second sealing part is clamped by the first clamping hook. The gap between the wire and the terminal groove is filled and sealed by using the first sealing element and the second sealing element of the sealing assembly, and the sealing assembly is fixed through the first clamping hook arranged on the connector, so that the risk that external dust or liquid invades into the connector from the gap between the wire and the terminal groove is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wire harness manufacturing technology, and in particular to a sealed wire harness. Background Technology

[0002] A wire harness is a medium for transmitting electrical signals between multiple electronic devices. Typically, a wire harness contains multiple signal channels. Therefore, the structure of a wire harness usually includes: connectors, multiple metal terminals, and multiple wires. The metal terminals are connected one-to-one with the wires, and then the metal terminals are threaded through the connectors. In use, the connectors are inserted into the electrical interfaces of the electronic devices.

[0003] The drawback of traditional wire harnesses is that although the multiple wires of the harness are protected by sleeves or wrapping tape, the area of ​​the wires at the end of the connector is not covered by the sleeves or wrapping tape. Therefore, there will be a significant gap between the end of the connector and the wires, and external dust or liquids can enter the connector through this gap. Utility Model Content

[0004] Based on this, the present invention provides a sealed wire harness, which uses the first and second sealing elements of the sealing assembly to fill and seal the gap between the wire and the terminal slot, and the sealing assembly is fixed by the first hook provided on the connector, thereby reducing the risk of external dust or liquid intruding into the connector from the gap between the wire and the terminal slot.

[0005] A sealed wire harness, comprising:

[0006] Connector; The connector has multiple terminal slots that pass through the connector along the axial direction; and the rear end of the connector has a first hook that extends rearward along the axial direction; the number of first hooks is multiple and they are evenly distributed around the periphery of the rear end of the connector.

[0007] Metal terminals mounted on the connector; the metal terminals are inserted into the terminal slots from back to front;

[0008] A wire connecting to a metal terminal; one end of the wire connects to the tail end of the metal terminal, and the other end extends from the terminal slot to the outside of the rear end of the connector; and

[0009] A sealing assembly mounted on a connector; the sealing assembly includes: a first seal and a second seal that are spliced ​​together; the first seal is U-shaped and includes: a first stop portion abutting against the rear end of the connector and a first sealing portion connecting the first stop portion; the periphery of the first stop portion engages with a first hook; the first sealing portion is inserted into a terminal slot and fills the gap between the wire and the terminal slot; the second seal is U-shaped and includes: a second stop portion abutting against the rear end of the connector and a second sealing portion connecting the second stop portion; the periphery of the second stop portion engages with the first hook; the second sealing portion is inserted into a terminal slot and fills the gap between the wire and the terminal slot; the outer side of the connection between the first sealing portion and the second sealing portion is engaged with the first hook.

[0010] During assembly of the aforementioned sealed wire harness, after connecting the metal terminals and the wires, the metal terminals are inserted axially from back to front into the terminal slots of the connector. Next, the first sealing member of the sealing assembly is pushed axially from the rear of the connector until the first sealing portion of the first sealing member is inserted into the terminal slot and the first stop portion is engaged by the first hook. Then, following the same installation method as the first sealing member, the second sealing member is installed to the rear end of the connector. At this point, the gap between the terminal slot and the wire is filled and sealed by the sealing assembly, and the sealing assembly is secured to the rear end of the connector by the first hook. Through this design, the first and second sealing members of the sealing assembly fill and seal the gap between the wire and the terminal slot, and the sealing assembly is secured by the first hook on the connector, reducing the risk of external dust or liquid entering the connector through the gap between the wire and the terminal slot.

[0011] In one embodiment, the first seal further includes: a first arc-shaped piece connecting the first stop portion, with the first stop portion located between the first arc-shaped piece and the first sealing portion; the first arc-shaped piece is in close contact with the outer periphery of the wire; the second seal further includes: a second arc-shaped piece connecting the second stop portion, with the second stop portion located between the second arc-shaped piece and the second sealing portion; the second arc-shaped piece is in close contact with the outer periphery of the wire. The first and second arc-shaped pieces can wrap and protect the wire, improving the bending resistance of the wire at the rear end of the connector.

[0012] In one embodiment, the first stop portion is provided with a limiting groove, and the second stop portion is provided with a limiting protrusion; the limiting protrusion is embedded into the limiting groove axially from back to front. When the sealing assembly is assembled, the second seal can limit the first seal axially, improving the stability of the installation.

[0013] In one embodiment, both the first and second seals are elastic rubber blocks. These elastic rubber blocks are highly malleable and possess elasticity, allowing them to effectively fill the gap between the wire and the terminal slot.

[0014] In one embodiment, the sealed wiring harness further includes a retaining spring for engaging the connector; the retaining spring is U-shaped and includes: a pressure rod, a first engaging portion connected to one end of the pressure rod, and a second engaging portion connected to the other end of the pressure rod; the pressure rod abuts against the first and second sealing portions; the first engaging portion extends to one side of the sealing assembly and engages between two first hooks, and the second engaging portion extends to the other side of the sealing assembly and engages between two first hooks. The retaining spring can reinforce the installation stability between the sealing assembly and the connector, reducing the risk of the sealing assembly falling off.

[0015] In one embodiment, the connector further includes a second hook extending axially from rear to front; the second hook is used to engage the interface of an electronic device. The second hook can improve the connection stability between the connector and the interface of the electronic device. Attached Figure Description

[0016] Figure 1 This is a perspective view of a sealed wire harness according to Embodiment 1 of the present invention;

[0017] Figure 2 for Figure 1 A perspective view of the sealed wire harness shown from another angle;

[0018] Figure 3 for Figure 1 The rear view of the sealed wire harness shown;

[0019] Figure 4 for Figure 3 The AA cross-sectional view of the sealed wire harness shown;

[0020] Figure 5 for Figure 1 An exploded view of the sealed wire harness shown.

[0021] Figure 6 for Figure 5 A perspective view of the connector in the sealed wire harness shown;

[0022] Figure 7 for Figure 6 A stereoscopic view of the connector shown from another perspective;

[0023] Figure 8 for Figure 5 A perspective view of the sealing assembly in the shown sealed wire harness;

[0024] Figure 9 for Figure 8 A perspective view of the sealing assembly shown from another angle;

[0025] Figure 10 for Figure 8 Rear view of the sealing assembly shown;

[0026] Figure 11 for Figure 10 The BB cross-sectional view of the sealing assembly shown;

[0027] Figure 12 for Figure 11 A perspective view of the first seal in the sealing assembly shown;

[0028] Figure 13 for Figure 12 A perspective view of the first seal shown from another angle;

[0029] Figure 14 for Figure 11 A perspective view of the second seal in the sealing assembly shown;

[0030] Figure 15 for Figure 14 A perspective view of the second seal shown from another angle;

[0031] Figure 16 for Figure 1 Assembly steps of the sealed wire harness shown Figure 1 ;

[0032] Figure 17 for Figure 1 Assembly steps of the sealed wire harness shown Figure 2 ;

[0033] Figure 18 for Figure 1 Assembly steps of the sealed wire harness shown Figure 3 ;

[0034] Figure 19 for Figure 1 Assembly steps of the sealed wire harness shown Figure 4 ;

[0035] Figure 20 This is a perspective view of the sealed wire harness according to Embodiment 2 of this utility model;

[0036] Figure 21 for Figure 20 The view shown shows the snap-on removal of the sealed wiring harness.

[0037] The meanings of the labels in the attached diagram are as follows:

[0038] 100-Sealed wire harness;

[0039] 10-Connector, 11-Terminal slot, 12-First latch, 13-Second latch;

[0040] 20 - Metal terminal;

[0041] 30 - Conductor;

[0042] 40 - Sealing assembly, 41 - First seal, 411 - First stop, 412 - First sealing part, 413 - First arc-shaped piece, 414 - Limiting groove, 42 - Second seal, 421 - Second stop, 422 - Second sealing part, 423 - Second arc-shaped piece, 424 - Limiting protrusion;

[0043] 50-Snap ring, 51-Pressure rod, 52-First snap-fit ​​part, 53-Second snap-fit ​​part. Detailed Implementation

[0044] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0050] Example 1

[0051] like Figures 1 to 19 As shown, it is a sealed wire harness 100 according to one embodiment of the present invention.

[0052] like Figures 1 to 5 As shown, the sealed wiring harness 100 includes: a connector 10, metal terminals 20 mounted on the connector 10, wires 30 connecting the metal terminals 20, and a sealing assembly 40 mounted on the connector 10. The connector 10 is used to mount the metal terminals 20 and serves as an interface for connecting electronic devices. The metal terminals 20 and the wires 30 are connected to form a channel for electrical signal transmission. The sealing assembly 40 is used to seal and protect the gap between the rear end of the connector 10 and the wires 30.

[0053] The following text, combined with Figures 1 to 19 The sealed wire harness 100 described above will be further explained.

[0054] like Figure 6 and Figure 7 As shown, the connector 10 has multiple terminal slots 11 extending axially through the connector 10. For example, in this embodiment, there are four terminal slots 11 arranged in a 2x2 pattern. Simultaneously, the rear end of the connector 10 has a first hook 12 extending axially rearward. There are multiple first hooks 12 evenly distributed around the periphery of the rear end of the connector 10. In this embodiment, there are six first hooks 12, spaced in pairs at intervals along the edge of each side of the connector 10.

[0055] like Figure 4 As shown, the metal terminal 20 is inserted into the terminal slot 11 from back to front. Figure 2 As shown, in this embodiment, there are four metal terminals 20, which are inserted into the terminal slots 11 one by one from the rear end of the connector 10 forward along the axial direction.

[0056] like Figure 4 As shown, one end of the wire 30 is connected to the tail end of the metal terminal 20, and the other end of the wire 30 extends from the terminal slot 11 to the outside of the rear end of the connector 10.

[0057] like Figures 8 to 11 As shown, the sealing assembly 40 is mounted abutting the rear end of the connector 10 via a first latch 12. The sealing assembly 40 includes a first seal 41 and a second seal 42 that are spliced ​​together.

[0058] like Figure 12 and Figure 13 As shown, the first seal 41 is U-shaped and includes: a first stop portion 411 abutting against the rear end of the connector 10 and a first sealing portion 412 connecting the first stop portion 411. The periphery of the first stop portion 411 engages with the first hook 12. The first sealing portion 412 is inserted into the terminal slot 11 and fills the gap between the wire 30 and the terminal slot 11.

[0059] like Figure 14 and Figure 15 As shown, the second seal 42 is U-shaped and includes: a second stop portion 421 abutting against the rear end of the connector 10 and a second sealing portion 422 connecting the second stop portion 421. The periphery of the second stop portion 421 engages with the first hook 12. The second sealing portion 422 is inserted into the terminal slot 11 and fills the gap between the wire 30 and the terminal slot 11. The outer side of the connection between the first sealing portion 412 and the second sealing portion 422 is engaged by the first hook 12.

[0060] To further enhance the protection of the conductor 30, the sealing assembly 40 can be improved.

[0061] For example, both the first seal 41 and the second seal 42 are elastic rubber blocks. Elastic rubber blocks are highly malleable and elastic, effectively filling the gap between the wire 30 and the terminal slot 11. For example, in this embodiment, both the first seal 41 and the second seal 42 are elastic silicone blocks.

[0062] For example, combining Figure 2 and Figure 12 As shown, the first sealing member 41 may further include: a first arc-shaped piece 413 connecting the first stop portion 411, and the first stop portion 411 is located between the first arc-shaped piece 413 and the first sealing portion 412. The first arc-shaped piece 413 is in close contact with the outer periphery of the wire 30. Simultaneously, combined with... Figure 2 and Figure 14 As shown, the second sealing member 42 may further include a second arc-shaped piece 423 connecting the second stop portion 421, and the second stop portion 421 is located between the second arc-shaped piece 423 and the second sealing portion 422. The second arc-shaped piece 423 is in close contact with the outer periphery of the wire 30. The first arc-shaped piece 413 and the second arc-shaped piece 423 can wrap and protect the wire 30, improving the bending resistance of the wire 30 at the rear end of the connector 10. For example, when the first sealing member 41 and the second sealing member 42 are spliced ​​to form a sealing assembly 40, the first arc-shaped piece 413 and the second arc-shaped piece 423 form a sleeve structure that wraps the outer periphery of the wire 30.

[0063] In this design, the stability of the first seal 41 and the second seal 42 installation mainly depends on the squeezing force exerted when the hook and sealing part fill the gap between the wire 30 and the terminal groove 11. Therefore, improvements can be made to further enhance the installation stability of the first seal 41 and the second seal 42. For example, combining... Figure 10 , Figure 11 , Figure 12 ,as well as Figure 15 As shown, in this embodiment, the first stop portion 411 is provided with a limiting groove 414, and the second stop portion 421 is provided with a limiting protrusion 424. The limiting protrusion 424 is embedded into the limiting groove 414 from back to front along the axial direction. When the sealing assembly 40 is assembled, the second sealing member 42 can limit the first sealing member 41 along the axial direction, thereby improving the stability of the installation.

[0064] Brief description of working principle:

[0065] like Figure 16 and Figure 17 As shown, during assembly, after connecting the metal terminal 20 and the wire 30, the metal terminal 20 is inserted axially from back to front into the terminal slot 11 of the connector 10.

[0066] like Figure 17 and Figure 18As shown, the first sealing member 41 of the sealing assembly 40 is then pushed forward axially from the rear of the connector 10 until the first sealing part 412 of the first sealing member 41 is inserted into the terminal groove 11 and the first stop part 411 is engaged by the first hook 12. The barb of the first hook 12 applies an axial forward force to the sealing assembly 40, thereby forcing the sealing assembly 40 to press against the rear end of the connector 10.

[0067] like Figure 18 and Figure 19 As shown, next, referring to the installation method of the first seal 41, the second seal 42 is installed to the rear end of the connector 10. At this time, it is then combined with... Figure 4 As shown, the gap between the terminal slot 11 and the wire 30 is filled and sealed by the sealing component 40, and the sealing component 40 is snapped and fixed to the rear end of the connector 10 by the first hook 12.

[0068] In addition, to improve the stability of the connection between the sealed wire harness 100 and electronic devices during use, such as Figure 1 As shown, in this embodiment, the connector 10 may further include a second hook 13 extending axially from rear to front. The second hook 13 is used to hook onto the interface of the electronic device. The second hook 13 can improve the connection stability between the connector 10 and the interface of the electronic device.

[0069] The aforementioned sealed wire harness 100 uses the first sealing member 41 and the second sealing member 42 of the sealing assembly 40 to fill and seal the gap between the wire 30 and the terminal groove 11, and the sealing assembly 40 is fixed by the first hook 12 provided on the connector 10, thereby reducing the risk of external dust or liquid intruding into the connector 10 from the gap between the wire 30 and the terminal groove 11.

[0070] Example 2

[0071] like Figure 20 and Figure 21 As shown, this is another embodiment of the sealed wire harness 100 of the present invention.

[0072] The difference between this embodiment and Embodiment 1 is that: Figure 20 and Figure 21As shown, in this embodiment, the sealed wiring harness 100 further includes a retaining spring 50 for engaging the connector 10. The retaining spring 50 is U-shaped and includes a pressure rod 51, a first engaging portion 52 connected to one end of the pressure rod 51, and a second engaging portion 53 connected to the other end of the pressure rod 51. The pressure rod 51 abuts against the first sealing portion 412 and the second sealing portion 422. The first engaging portion 52 extends to one side of the sealing assembly 40 and engages between two first hooks 12, and the second engaging portion 53 extends to the other side of the sealing assembly 40 and engages between two first hooks 12. The retaining spring 50 can reinforce the installation stability between the sealing assembly 40 and the connector 10 and reduce the risk of the sealing assembly 40 falling off.

[0073] The other structures in this embodiment are the same as in Embodiment 1, and it can also achieve the beneficial effects of Embodiment 1.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sealed wire harness, characterized in that, include: A connector; the connector has multiple terminal slots that extend through the connector along the axial direction; and the rear end of the connector has a first hook that extends rearward along the axial direction; the number of the first hooks is multiple and they are evenly distributed around the periphery of the rear end of the connector. Metal terminals mounted on the connector; the metal terminals pass into the terminal slots from back to front; The wire connecting the metal terminal; One end of the wire is connected to the tail end of the metal terminal, and the other end of the wire extends from the terminal slot to the outside of the rear end of the connector; as well as Sealing assembly mounted on the connector; The sealing assembly includes: a first sealing member and a second sealing member spliced ​​together; the first sealing member is convex and includes: a first stop portion abutting against the rear end of the connector and a first sealing portion connecting the first stop portion; the periphery of the first stop portion engages with the first hook; the first sealing portion is inserted into the terminal slot and fills the gap between the wire and the terminal slot; the second sealing member is concave and includes: a second stop portion abutting against the rear end of the connector and a second sealing portion connecting the second stop portion; the periphery of the second stop portion engages with the first hook; the second sealing portion is inserted into the terminal slot and fills the gap between the wire and the terminal slot; the outer side of the connection between the first sealing portion and the second sealing portion is engaged with the first hook.

2. The sealed wire harness according to claim 1, characterized in that, The first sealing member further includes: a first arc-shaped piece connecting the first stop portion, and the first stop portion being located between the first arc-shaped piece and the first sealing portion; the first arc-shaped piece is in close contact with the outer peripheral side of the wire; the second sealing member further includes: a second arc-shaped piece connecting the second stop portion, and the second stop portion being located between the second arc-shaped piece and the second sealing portion; the second arc-shaped piece is in close contact with the outer peripheral side of the wire.

3. The sealed wire harness according to claim 1, characterized in that, The first stop portion is provided with a limiting groove, and the second stop portion is provided with a limiting protrusion; the limiting protrusion is embedded in the limiting groove from back to front along the axial direction.

4. The sealed wire harness according to claim 1, characterized in that, Both the first and second seals are elastic rubber blocks.

5. The sealed wire harness according to claim 1, characterized in that, Also includes: A snap ring that engages with the connector; The retaining spring is U-shaped and includes: a pressure rod, a first locking part connected to one end of the pressure rod, and a second locking part connected to the other end of the pressure rod; The pressure rod abuts against the first sealing part and the second sealing part; the first snap-fit ​​part extends to one side of the sealing assembly and snaps between the two first snap hooks, and the second snap-fit ​​part extends to the other side of the sealing assembly and snaps between the two first snap hooks.

6. The sealed wire harness according to claim 1, characterized in that, The connector further includes a second hook extending axially from rear to front; the second hook is used to hook onto the interface of an electronic device.

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