A wiring harness seal structure

Abstract

The utility model discloses a kind of wiring harness sealing structures, comprising: wiring harness assembly includes crimping terminal, first wire, second wire, crimping terminal one end is fixed with first wire crimping, crimping terminal other end is fixed with second wire crimping;Seal is equipped with several through holes and baffle part, first wire passes through through hole, baffle part is equipped with several isolation cavities, crimping terminal is contained in isolation cavity;Shell is equipped with containing cavity, seal, wiring harness assembly is contained in containing cavity, seal, wiring harness assembly, shell cooperation forms glue injection area, glue injection area is filled with colloid;Adopt this structure setting, in assembly process, seal and wiring harness assembly sleeve setting installation are first, then seal, wiring harness assembly and shell are connected fixed, form a glue injection area, finally through colloid filling, form integral sealing effect, the structure of double sealing, sealing performance is reliable, save space, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of terminal technology, and specifically to a wire harness sealing structure. Background Technology

[0002] In existing technology, two wires are connected by a double-ended crimp terminal to form an electrical connection. This method forms one electrical connection. When multiple electrical connections are needed, the double-ended crimp terminal needs to be installed inside the housing to create a fixed effect, and then a plug structure is used to form a seal. However, this sealing method has poor performance and a low sealing level. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is how to improve the sealing performance of wire harnesses. A wire harness sealing structure includes:

[0004] A wire harness assembly, comprising a crimp terminal, a first wire, and a second wire, wherein one end of the crimp terminal is crimped and fixed to the first wire, and the other end of the crimp terminal is crimped and fixed to the second wire;

[0005] A sealing element, the sealing element having a plurality of through holes and a partition portion, the first wire passing through the through holes, the partition portion having a plurality of isolation cavities, and the crimping terminal being housed in the isolation cavities;

[0006] The housing has a receiving cavity, in which the seal and the wiring harness assembly are housed. The seal, the wiring harness assembly, and the housing cooperate to form a potting area, which is filled with adhesive.

[0007] The second wire portion extends into the isolation cavity.

[0008] The inner wall of the through hole is provided with a first protrusion, which abuts against the first wire.

[0009] The outer wall of the seal is provided with a second protrusion, which abuts against the inner wall of the receiving cavity.

[0010] The number of the first protrusion is at least two, and the number of the second protrusion is at least two. The first protrusion near the second wire and the second protrusion near the second wire cooperate to form a part of the sidewall of the glue-filling area.

[0011] The outer casing is provided with a baffle portion, which abuts against the side of the seal away from the second wire.

[0012] The partition includes transverse ribs and longitudinal ribs, the transverse ribs are connected to the longitudinal ribs, and the longitudinal ribs are provided with reinforcing parts.

[0013] The inner wall of the receiving cavity is provided with a guide surface, which is located on the side away from the seal.

[0014] The end face of the outer shell away from the sealant is coplanar with the colloid.

[0015] The technical solution of this utility model has the following advantages:

[0016] 1. The present invention provides a wire harness sealing structure. In this structure, during the assembly process, the sealing element and the wire harness assembly are first fitted and installed, then the sealing element, the wire harness assembly and the outer shell are connected and fixed to form a potting area, and finally the adhesive is filled to form an overall sealing effect. The double sealing structure has reliable sealing performance, saves space and reduces costs.

[0017] 2. The wire harness sealing structure provided by this utility model has a second wire extending into the isolation cavity, which better forms an isolation effect and at the same time prevents the second wire from shaking during the potting process.

[0018] 3. The wire harness sealing structure provided by this utility model has a first protrusion that improves the sealing effect between the sealing element and the first wire.

[0019] 4. The wire harness sealing structure provided by this utility model has a second protrusion that improves the sealing effect between the sealing element and the outer shell.

[0020] 5. The wire harness sealing structure provided by this utility model improves the sealing level and prevents the colloid from penetrating to the other side of the shell through the cooperation of multiple first protrusions and second protrusions.

[0021] 6. The wire harness sealing structure provided by this utility model has a baffle portion that forms a limiting and fixing effect on the sealing element.

[0022] 7. The wire harness sealing structure provided by this utility model has a guide surface that forms a flow guiding effect for the colloid.

[0023] 8. The wire harness sealing structure provided by this utility model has a coplanar arrangement, which prevents the colloid from overflowing and ensures the overall aesthetics. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a wire harness sealing structure provided by the present invention;

[0026] Figure 2 A cross-sectional view of a wire harness sealing structure provided by this utility model;

[0027] Figure 3 A schematic diagram of the wire harness assembly provided by this utility model;

[0028] Figure 4 A schematic diagram illustrating the fit between the wire harness assembly and the sealing element provided by this utility model;

[0029] Figure 5 A schematic diagram of the structure of the sealing element provided by this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 11. Crimped terminal; 12. First conductor; 13. Second conductor; 14. Seal; 15. Housing; 16. Glue; 141. Through hole; 142. Partition; 143. Isolation cavity; 144. First protrusion; 145. Second protrusion; 146. Transverse rib; 147. Longitudinal rib; 148. Reinforcing part; 149. Sealing part; 151. Receiving cavity; 152. Baffle; 153. Guide surface. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] This embodiment provides a wire harness sealing structure, as shown in the attached figure. Figures 1-5 As shown, it includes:

[0038] The wiring harness assembly includes a crimp terminal 11, a first conductor 12, and a second conductor 13. One end of the crimp terminal 11 is crimped and fixed to the first conductor 12, and the other end of the crimp terminal 11 is crimped and fixed to the second conductor 13. In this configuration, one first conductor 12, one crimp terminal 11, and one second conductor 13 form one circuit. The wiring harness assembly can have multiple circuits; in this embodiment, an 8-circuit circuit is described as an example, specifically distributed in a 2*4 array. Furthermore, those skilled in the art can adjust the number of circuits according to actual needs. The crimp terminal 11 secures the conductors and provides electrical connection between the first conductor 12 and the second conductor 13. In this embodiment, the first conductor 12 is located on the right side of the assembly, the second conductor 13 is located on the left side, and the crimp terminal 11 is located between the first conductor 12 and the second conductor 13 to achieve the electrical connection.

[0039] The sealing element 14 has several through holes 141 and a partition portion 142. The number of through holes 141 corresponds to the number of wires, that is, there are 8 through holes 141. The first wire 12 passes through the through holes 141. The partition portion 142 has several isolation chambers 143. The number of isolation chambers 143 also corresponds to the number of wires, that is, 8 isolation chambers 143 are formed. The crimp terminal 11 is accommodated in the isolation chamber 143.

[0040] The housing 15 has a receiving cavity 151. The seal 14 and the wiring harness assembly are housed within the receiving cavity 151. The seal 14 is entirely located within the receiving cavity 151. The crimp terminal 11 is entirely located within the receiving cavity 151. A portion of the first wire 12 is located within the receiving cavity 151, with the remaining portion extending outwards through the right end of the receiving cavity 151. A portion of the second wire 13 is located within the receiving cavity 151, with the remaining portion extending outwards through the left end of the receiving cavity 151. The seal 14, the wiring harness assembly, and the housing 15 cooperate to form a potting area filled with adhesive 16.

[0041] With this structural design, during assembly, the seal 14 is first fitted and installed with the wiring harness assembly. Then, the seal 14, the wiring harness assembly, and the housing 15 are connected and fixed to form a potting area. Finally, the adhesive 16 is used to fill the area, forming an overall sealing effect. This double-sealed structure provides reliable sealing performance, saves space, and reduces costs.

[0042] Specifically, as shown in the attached document Figures 1-5 As shown, a portion of the second wire 13 extends into the isolation cavity 143. This extension of the second wire 13 into the isolation cavity 143 provides better isolation and prevents the second wire 13 from shifting during the potting process. Alternatively, only the exposed portion of the second wire 13 can be connected to the crimp terminal 11, with the remaining portion of the second wire 13 not extending into the isolation cavity 143.

[0043] Specifically, as shown in the attached document Figure 2 , Figures 4-5 As shown, the inner wall of the through hole 141 is provided with a first protrusion 144, which abuts against the first wire 12. The first protrusion 144 improves the sealing effect between the seal 14 and the first wire 12.

[0044] Specifically, as shown in the attached document Figure 2 , Figures 4-5 As shown, the outer wall of the seal 14 is provided with a second protrusion 145, which abuts against the inner wall of the receiving cavity 151. The provision of the second protrusion 145 improves the sealing effect between the seal 14 and the outer shell 15.

[0045] Specifically, as shown in the attached document Figure 2 , Figures 4-5As shown, there are at least two first protrusions 144 and at least two second protrusions 145. The first protrusions 144 and the second protrusions 145 near the second wire 13 cooperate to form a portion of the sidewall of the potting area. That is, the first protrusion 144 on the left side and the first second protrusion 145 on the left side cooperate to achieve a sealing effect, preventing the adhesive 16 from entering the right side area. Through the cooperation of multiple first protrusions 144 and second protrusions 145, the sealing level is improved, preventing the adhesive 16 from penetrating to the other side of the housing 15.

[0046] Specifically, as shown in the attached document Figure 2 As shown, the outer casing 15 is provided with a baffle portion 152, which abuts against the side of the sealing member 14 away from the second wire 13. The baffle portion 152 is provided to limit and fix the sealing member 14. Here, the baffle portion 152 is located at the right end of the outer casing 15. During installation, the sealing member 14 slides from the left side of the outer casing 15 into the receiving cavity 151 and abuts against the baffle portion 152 to achieve a fixing effect.

[0047] Specifically, as shown in the attached document Figures 4-5 As shown, the partition portion 142 includes transverse ribs 146 and longitudinal ribs 147. The transverse ribs 146 and longitudinal ribs 147 are connected, and the transverse ribs 146 and longitudinal ribs 147 cooperate to form eight isolation chambers 143. These isolation chambers 143 are not closed. The isolation chambers 143 are not open at both ends; their sides are also open. The longitudinal ribs 147 are provided with reinforcing portions 148, which are located at the end of the longitudinal rib 147 near the second conductor 13.

[0048] Specifically, as shown in the attached document Figure 5 As shown, the seal 14 includes a sealing part 149, which is connected to the partition part 142. The sealing part 149 is located in the right side region, and a through hole 141 is provided in the sealing part 149. The partition part 142 is located in the left side region. Here, the seal 14 is made of rubber and is integrally molded. During the installation process, the seal 14 is installed and fixed in the receiving cavity 151.

[0049] Specifically, as shown in the attached document Figure 2 As shown, the inner wall of the receiving cavity 151 is provided with a guide surface 153, which is located on the side away from the seal 14. The guide surface 153 is provided to create a flow guiding effect for the colloid 16.

[0050] Specifically, as shown in the attached document Figures 1-2The end face of the outer casing 15 away from the seal 14 is coplanar with the colloid 16. This coplanar arrangement prevents the colloid 16 from overflowing, ensuring an aesthetically pleasing overall appearance. Here, the left end face of the outer casing 15 is coplanar with the left end face of the solidified colloid 16. The colloid 16 is in a fluid state during injection and solidifies upon cooling. The colloid 16 can be made of rubber or epoxy resin, which can be adjusted according to specific needs.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A wire harness sealing structure, characterized in that, include: A wire harness assembly, the wire harness assembly including a crimp terminal (11), a first wire (12), and a second wire (13), one end of the crimp terminal (11) being crimped and fixed to the first wire (12), and the other end of the crimp terminal (11) being crimped and fixed to the second wire (13); A sealing element (14) is provided with a plurality of through holes (141) and a partition portion (142). The first wire (12) passes through the through holes (141). The partition portion (142) is provided with a plurality of isolation cavities (143). The crimp terminal (11) is housed in the isolation cavity (143). The outer shell (15) has a receiving cavity (151), the sealing member (14) and the wire harness assembly are housed in the receiving cavity (151), and the sealing member (14), the wire harness assembly and the outer shell (15) cooperate to form a potting area, and the potting area is filled with adhesive (16).

2. The wire harness sealing structure according to claim 1, characterized in that, The second conductor (13) extends into the isolation cavity (143).

3. The wire harness sealing structure according to claim 1, characterized in that, The inner wall of the through hole (141) is provided with a first protrusion (144), which abuts against the first wire (12).

4. The wire harness sealing structure according to claim 3, characterized in that, The outer sidewall of the seal (14) is provided with a second protrusion (145), which abuts against the inner wall of the receiving cavity (151).

5. The wire harness sealing structure according to claim 4, characterized in that, The number of the first protrusion (144) is at least two, and the number of the second protrusion (145) is at least two. The first protrusion (144) near the second conductor (13) and the second protrusion (145) near the second conductor (13) cooperate to form a part of the sidewall of the glue-filling area.

6. The wire harness sealing structure according to claim 1, characterized in that, The outer casing (15) is provided with a baffle portion (152), which abuts against the side of the seal (14) away from the second conductor (13).

7. The wire harness sealing structure according to claim 1, characterized in that, The partition portion (142) includes a transverse rib (146) and a longitudinal rib (147), the transverse rib (146) and the longitudinal rib (147) are connected, and the longitudinal rib (147) is provided with a reinforcing portion (148).

8. The wire harness sealing structure according to claim 1, characterized in that, The inner wall of the receiving cavity (151) is provided with a guide surface (153), which is located on the side away from the seal (14).

9. The wire harness sealing structure according to claim 1, characterized in that, The end face of the outer shell (15) away from the seal (14) is coplanar with the colloid (16).

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