Semi-open via cover, sealed wiring harness via structure and installation method thereof

Abstract

The present invention discloses a semi-open through-hole cover, a sealed wire harness through-hole structure and an installation method thereof. By using a main trunk slot and a plurality of branch trunk slots on the semi-open through-hole cover, each cable of the wire harness can be inserted through the main trunk slot, and then pass through the guide section and the narrowing section of the corresponding branch trunk slot and then be fixed in the corresponding positioning hole, thereby realizing the rapid fixation of the wire harness on the semi-open through-hole cover; the complementary structural boss of the internal component is used to ensure that the sealant poured into the injection ring will not leak into the inner shell of the product through the gap between the cable and the semi-open through-hole cover. Therefore, the present invention can conveniently and quickly realize the assembly of the wire harness and the semi-open through-hole cover, can facilitate the correction of the wrong installation position of the cable of the wire harness, and can ensure that the sealant will not leak into the inner shell of the product, solving the problem that the existing sealed wire harness through-hole structure cannot take into account both the convenience of wire harness assembly and the sealing effect of the sealant.

Description

Technical Field

[0001] The present invention relates to a waterproof and dustproof sealed via method for a wiring harness on a product housing for realizing electrical connection between the inside and outside of a product housing, and specifically comprises: a semi-open via cover, a sealed wiring harness via structure using the semi-open via cover, and an installation method of the sealed wiring harness via structure. Background Art

[0002] The wire-controlled shift actuator needs to meet the IP67 sealing requirements. Since it is installed in a relatively harsh working environment, it needs to be sealed with sealant to achieve the purpose of waterproofing and dustproofing. At the same time, the wiring harness needs to be connected to the inside of the actuator, and the wiring harness through-hole part must meet the IP67 sealing requirements.

[0003] At present, there are two types of sealing harness via structures in the prior art that can meet the above IP67 sealing requirements, such as Figures 1 to 6 As shown, the two existing sealed harness via structures both include: a product shell 3, an internal component 4 of the product, a harness, a via cover and a sealant 5; the shell 3 is provided with a via 3a, and the outer wall of the shell 3 is provided with a rubber injection ring 31 arranged around the via 3a; the harness is used to realize the electrical connection between the components inside and outside the shell 3, and the harness includes a plurality of cables 2, and the inner and outer ends of each cable 2 are connected to corresponding connectors; each cable 2 of the harness is fixed in the via cover, and the via cover is fixed inside On the component 4, the inner component 4 is fixed inside the outer shell 3, so that: the via cover is pressed against the inner wall of the outer shell 3 and covers the via 3a of the outer shell 3, and the inner end of each cable 2 is located inside the outer shell 3, so that the connector connected to the inner end of the cable 2 is electrically connected to the corresponding components inside the outer shell 3, and the outer end of each cable 2 passes through the via hole and the injection ring 31 of the outer shell 3 to the outside of the outer shell 3, so that the connector connected to the outer end of the cable 2 is electrically connected to the corresponding components outside the outer shell 3; the sealant 5 is poured into the injection ring 31.

[0004] The differences between the above two existing sealing harness via structures are as follows:

[0005] like Figures 1 to 3Solution 1, i.e., the first sealed harness via structure, adopts a closed via cover A1, which is provided with an adaptive mounting through hole A1a for each cable 2 of the harness. When assembling the sealed harness via structure, each cable 2 must first be inserted into the corresponding mounting through hole A1a of the closed via cover A1, and then the connectors at both ends of the cable 2 are connected. Therefore, although Scheme 1 can ensure the sealing between the cable 2 and the closed via cover A1, it has the following shortcomings: First, since the components to which the cables 2 of the wiring harness are to be connected are different, the connectors on the cables 2 of the wiring harness will also be different, and the installation position of each cable 2 on the closed via cover A1, that is, the corresponding installation through hole A1a, is specified according to the components to be connected. However, in Scheme 1, when the installation position of the cable 2 on the closed via cover A1 is incorrect, the connector on the cable 2 must be removed to correct it, which is an extremely cumbersome process and increases the production cost; second, Scheme 1 must first insert the cable 2 into the corresponding installation through hole A1a of the closed via cover A1, and then connect the connectors at both ends of the cable 2, which greatly reduces the assembly efficiency of the sealed wiring harness via structure.

[0006] like Figures 4 to 6 , the second scheme, i.e., the second type of sealed harness via structure, adopts an open via cover B1, and the open via cover B1 has a groove-shaped notch B1a on its edge for each cable 2 of the harness. When assembling the sealed harness via structure, the cable 2 can be connected at both ends first, and then inserted into the corresponding groove-shaped notch B1a of the open via cover B1. Therefore, although the second scheme can make the assembly and repair between the cable 2 and the open via cover B1 extremely fast and convenient, it has the following shortcomings: due to the large gap between the cable 2 and the closed via cover B1, when the sealant 5 is poured into the injection ring 31, the sealant 5 is easy to leak into the product's housing 3 through the gap between the cable 2 and the closed via cover B1, causing the sealant 5 to penetrate into other functional parts of the product, resulting in poor product function, and poor waterproof and dustproof sealing effect of the via of the housing 3. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a semi-open via cover, a sealed wire harness via structure and an installation method thereof, so as to solve the problem that the existing sealed wire harness via structure cannot take into account both the convenience of wire harness assembly and the sealing effect of sealant.

[0008] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0009] A semi-open through-hole cover, comprising a main body, and a main slot is provided on the semi-open through-hole cover; characterized in that: the semi-open through-hole cover also includes a sub-body connected to the main body, the head end and the tail end of the main slot are respectively located at the edge position of the sub-body and the internal position of the main body, and the main slot divides the sub-body into a first limiting portion and a second limiting portion; and, the main body is also provided with a plurality of branch slots, the head end of each branch slot is connected to the main slot, the tail end of each branch slot is located at the internal position of the main body, and the branch slots are composed of a guide section, a narrowing section and a clamping hole suitable for accommodating a cable from the head end to the tail end, and the main body forms a limiting clip in the narrowing section that can limit the cable in the clamping hole.

[0010] As a preferred embodiment of the present invention: the semi-open through-hole cover is also provided with an outer guide boss corresponding to each of the positioning holes, and the side of the outer guide boss is provided with a guide groove with an arched cross-section, the bottom of the outer guide boss is connected to the top surface of the main body of the semi-open through-hole cover, and the guide groove of each outer guide boss is connected to the corresponding positioning hole.

[0011] As a preferred embodiment of the present invention: the semi-open through-hole cover is also provided with a plurality of reinforcing ribs, the reinforcing ribs are connected to the top surface of the main body of the semi-open through-hole cover, and each of the reinforcing ribs is connected between two adjacent outer guide bosses.

[0012] As a preferred embodiment of the present invention: the width of the main slot and the width of the guide section of the branch slot are both greater than the diameter of the cable.

[0013] As a preferred embodiment of the present invention: the main body of the semi-open through-hole cover is circular, and the main slot passes through the center of the circle; the multiple branch slots are an even number and are arranged in pairs, and each pair of the branch slots is located on a straight line segment perpendicular to the main slot.

[0014] A sealed wire harness via structure, comprising a product shell, an internal component of the product, a wire harness, a via cover and a sealant; the shell is provided with a via, and the outer wall of the shell is provided with a glue injection ring arranged around the via; the wire harness is used to realize the electrical connection between the components inside and outside the shell, the wire harness contains a plurality of cables, and the inner end and the outer end of each of the cables are connected to a corresponding connector; each cable of the wire harness is fixed in the via cover, the via cover is fixed on the internal component, and the internal component is fixed inside the shell, so that: the via cover is pressed against the inner wall of the shell and covers the via of the shell, and the inner end of each of the cables is located inside the shell, and the outer end of each of the cables passes through the via and the glue injection ring of the shell to the outside of the shell; the sealant is poured into the glue injection ring;

[0015] Features:

[0016] The via cover sheet is the semi-open via cover sheet mentioned above;

[0017] The cable is fixed in the semi-open through-hole cover in the following manner: the cable passes through the main slot, the guide section and the narrowing section of the semi-open through-hole cover in sequence and is then fixed in the positioning hole;

[0018] The inner component is provided with a complementary structure boss, a first limiting boss and a second limiting boss, the cross-sectional shape of the complementary structure boss is the same as the shape formed by the main trunk slot and the guide section and the narrowing section of each branch slot of the semi-open through-hole cover sheet, and the complementary structure boss is divided into a boss main body part and a boss sub-body part corresponding to the main body part and the sub-body part of the semi-open through-hole cover sheet, the first limiting boss and the second limiting boss are respectively connected to two side surfaces of the boss sub-body part, and a first limiting groove is formed between the first limiting boss and the boss sub-body part, and a second limiting groove is formed between the second limiting boss and the boss sub-body part;

[0019] The semi-open via cover is fixed to the inner component in the following manner: the complementary structural bosses of the inner component are correspondingly embedded in the main slot and the guide sections and the narrowing sections of the branch slots of the semi-open via cover, so that: the first limiting portion and the second limiting portion of the semi-open via cover are respectively embedded in the first limiting groove and the second limiting groove of the inner component.

[0020] As a preferred embodiment of the present invention: a buckle is provided on the top surface of the boss sub-body of the complementary structure boss; so that: when the semi-open via cover is fixed on the inner component, the top surface of the complementary structure boss is flush with the top surface of the semi-open via cover, and the semi-open via cover is clamped between the buckle and the first limiting groove and the second limiting groove.

[0021] As a preferred embodiment of the present invention: an inner guide boss is provided on the top surface of the boss body of the complementary structure boss corresponding to each of the positioning holes.

[0022] As a preferred embodiment of the present invention: a gap for the cable to pass through is reserved between the bottom surface of the semi-open through-hole cover and the end surface of the inner component at the location of the complementary structural boss.

[0023] A method for installing a sealed wiring harness via structure, characterized in that the installation method comprises:

[0024] Step 1: Prepare the product shell, internal components, wiring harness, via cover and sealant;

[0025] The shell is provided with a via hole, and the outer wall of the shell is provided with a rubber injection ring surrounding the via hole;

[0026] The via cover sheet is the semi-open via cover sheet mentioned above;

[0027] The wiring harness is used to realize the electrical connection between the components inside and outside the housing, and the wiring harness includes a plurality of cables, and the inner end and the outer end of each of the cables are connected to a corresponding connector;

[0028] The inner component is provided with a complementary structure boss, a first limiting boss and a second limiting boss, the cross-sectional shape of the complementary structure boss is the same as the shape formed by the main trunk slot and the guide section and the narrowing section of each branch slot of the semi-open through-hole cover sheet, and the complementary structure boss is divided into a boss main body part and a boss sub-body part corresponding to the main body part and the sub-body part of the semi-open through-hole cover sheet, the first limiting boss and the second limiting boss are respectively connected to two side surfaces of the boss sub-body part, and a first limiting groove is formed between the first limiting boss and the boss sub-body part, and a second limiting groove is formed between the second limiting boss and the boss sub-body part;

[0029] Step 2: fix each cable of the wiring harness in the via cover;

[0030] The cable is fixed in the semi-open via cover in the following manner: the cable passes through the main slot, the guide section and the narrowing section of the semi-open via cover in sequence and is then fixed in the positioning hole;

[0031] Step 3, fixing the semi-open via cover sheet on the inner component;

[0032] The semi-open via cover is fixed to the inner component in the following manner: the complementary structural boss of the inner component is correspondingly embedded in the main slot and the guide section and the narrowing section of each branch slot of the semi-open via cover, so that: the first limiting portion and the second limiting portion of the semi-open via cover are respectively embedded in the first limiting groove and the second limiting groove of the inner component;

[0033] Step 4: electrically connect the connector connected to the inner end of each cable of the wiring harness to the corresponding components inside the shell, and fix the inner component inside the shell so that: the via cover is pressed against the inner wall of the shell and covers the via of the shell;

[0034] Step 5: Pull the outer ends of the cables of the wiring harness to the outside of the housing by a corresponding length through the rubber injection ring, so that the connector connected to the outer end of each cable of the wiring harness can be electrically connected to the corresponding components outside the housing;

[0035] Step six: inject sealant into the sealant injection ring.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] First, the present invention utilizes the main slot and multiple branch slots on the semi-open via cover, so that each cable of the wiring harness can be inserted through the main slot, and then pass through the guide section and narrowing section of the corresponding branch slot and then be fixed in the corresponding positioning hole, thereby realizing the rapid fixation of the wiring harness on the semi-open via cover.

[0038] In addition, the present invention utilizes the complementary structural bosses of the inner components to be correspondingly embedded in the main slots of the semi-open via cover and the guide sections and narrowing sections of each branch slot, thereby achieving compensatory sealing of the slots on the semi-open via cover, ensuring the sealing between the cable and the semi-open via cover, and ensuring that the sealant poured into the injection ring will not leak into the interior of the product housing through the gap between the cable and the semi-open via cover;

[0039] Moreover, the present invention utilizes the first limiting groove and the second limiting groove on the inner component to limit the first limiting portion and the second limiting portion on the semi-open via cover sheet, thereby preventing the main trunk slot on the semi-open via cover sheet from being stretched open under the force of each cable of the wiring harness, and avoiding the generation of a gap between the semi-open via cover sheet and the complementary structural boss of the inner component;

[0040] Therefore, the present invention can conveniently and quickly realize the assembly of the wiring harness and the semi-open via cover, and can facilitate the correction of the incorrect installation position of the cables of the wiring harness, and can ensure that the sealant will not leak into the inside of the product shell, thereby solving the problem that the existing sealed wiring harness via structure cannot take into account both the convenience of wiring harness assembly and the sealing effect of the sealant.

[0041] Second, the present invention can first connect the connectors at both ends of each cable of the wiring harness, and then fix the cables to the semi-open via cover. When the installation position of the cable is wrong, the fixed position of the cable on the semi-open via cover can be directly adjusted without removing the connector of the cable. Therefore, the present invention can improve production and rework efficiency.

[0042] Thirdly, the present invention provides an outer guide boss corresponding to each positioning hole on the semi-open via cover. When the cable of the wiring harness is fixed in the positioning hole of the semi-open via cover, the outer end of the cable is placed in the guide groove of the corresponding outer guide boss, which can prevent the outer end of the cable from turning outward to the outside of the semi-open via cover, thereby preventing the turned-out cable from affecting the installation and fixation of the semi-open via cover on the inner component; and, the outer guide boss can more stably fix the cable on the semi-open via cover, thereby preventing the cable from detaching from the semi-open via cover during the assembly process of the sealed wiring harness via structure; therefore, the present invention can improve the assembly efficiency of the sealed wiring harness via structure and the reliability of the assembly process.

[0043] In addition, by providing an inner guide boss on the top surface of the boss body of the complementary structural boss, the assembly efficiency and reliability of the assembly process of the sealed wire harness via structure can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0045] Figure 1 It is a cross-sectional structural schematic diagram of the existing sealing harness via structure scheme 1;

[0046] Figure 2 It is a structural schematic diagram of a closed via cover in the first structural scheme of the existing sealed wiring harness via;

[0047] Figure 3 It is a three-dimensional structural schematic diagram of the existing sealing harness through-hole structure solution 1;

[0048] Figure 4 It is a cross-sectional structural schematic diagram of the second scheme of the existing sealing harness via structure;

[0049] Figure 5 It is a structural schematic diagram of a closed via cover in the second scheme of the existing sealed wiring harness via structure;

[0050] Figure 6 It is a three-dimensional structural schematic diagram of the second scheme of the existing sealing harness through-hole structure;

[0051] Figure 7 It is a schematic structural diagram of a semi-open via cover sheet of the present invention;

[0052] Figure 8 It is a schematic diagram of the structure of the internal components in the present invention;

[0053] Fig. 9 It is a schematic diagram of the connection structure between the semi-open via cover and the internal component in the present invention;

[0054] Fig.10 It is a schematic diagram of the three-dimensional structure of the sealing wire harness via structure of the present invention. DETAILED DESCRIPTION

[0055] like Figure 7 As shown, the present invention discloses a semi-open via cover sheet, comprising a main body 11, and a main groove 1a is formed on the semi-open via cover sheet 1, and the inventive concept is as follows: the semi-open via cover sheet 1 of the present invention also comprises a sub-body connected to the main body 11, the head end and the tail end of the main groove 1a are respectively located at the edge position of the sub-body and the inner position of the main body 11, and the main groove 1a divides the sub-body into a first limiting portion 12 and a second limiting portion 13; and In addition, a plurality of branch slots 1b are provided on the main body 11, the head end of each branch slot 1b is connected to the main slot 1a, the tail end of each branch slot 1b is located inside the main body 11, and the branch slot 1b is composed of a guide section 1b1, a narrowing section 1b2 and a positioning hole 1b3 suitable for accommodating the cable 2 from the head end to the tail end, and the main body 11 forms a limiting clip 111 in the narrowing section 1b2 that can limit the cable 2 in the positioning hole 1b3.

[0056] like Figures 8 to 10As shown, the present invention also discloses a sealed wire harness via structure, comprising a product shell 3, an internal component 4 of the product, a wire harness, a via cover and a sealant; the shell 3 is provided with a via, and the outer wall of the shell 3 is provided with a rubber injection ring 31 arranged around the via; the wire harness is used to realize the electrical connection between the components inside and outside the shell 3, and the wire harness includes a plurality of cables 2, and the inner end and the outer end of each cable 2 are connected to a corresponding connector; each cable 2 of the wire harness is fixed in the via cover, and the via cover is fixed inside On the component 4, the inner component 4 is fixed inside the outer shell 3, so that: the via cover is pressed against the inner wall of the outer shell 3 and covers the via of the outer shell 3, and the inner end of each cable 2 is located inside the outer shell 3, so that the connector connected to the inner end of the cable 2 is electrically connected to the corresponding components inside the outer shell 3, and the outer end of each cable 2 passes through the via of the outer shell 3 and the injection ring 31 to the outside of the outer shell 3, so that the connector connected to the outer end of the cable 2 is electrically connected to the corresponding components outside the outer shell 3; the sealant is poured into the injection ring 31.

[0057] The inventive concept of the present invention is:

[0058] The via cover sheet in the sealed wiring harness via structure is the semi-open via cover sheet 1;

[0059] The cable 2 is fixed in the semi-open through-hole cover 1 in the following manner: the cable 2 passes through the main slot 1a, the guide section 1b1 and the narrowing section 1b2 of the semi-open through-hole cover 1 in sequence and is then fixed in the locking hole 1b3;

[0060] The inner component 4 is provided with a complementary structure boss 41, a first limiting boss 42 and a second limiting boss 43. The cross-sectional shape of the complementary structure boss 41 is the same as the shape formed by the guide section 1b1 and the narrowing section 1b2 of the main trunk slot 1a and each branch slot 1b of the semi-open through hole cover sheet 1, and the complementary structure boss 41 is divided into a boss main body part 411 and a boss sub-body part 412 corresponding to the main body part 11 and the sub-body part of the semi-open through hole cover sheet 1, the first limiting boss 42 and the second limiting boss 43 are respectively connected to the two side surfaces of the boss sub-body part 412, and a first limiting groove 42a is formed between the first limiting boss 42 and the boss sub-body part 412, and a second limiting groove 43a is formed between the second limiting boss 43 and the boss sub-body part 412;

[0061] The semi-open via cover 1 is fixed on the inner component 4 in the following manner: the complementary structural boss 41 of the inner component 4 is correspondingly embedded in the main groove 1a and the guide section 1b1 and the narrowing section 1b2 of each branch groove 1b of the semi-open via cover 1, so that: the first limiting portion 12 and the second limiting portion 13 of the semi-open via cover 1 are respectively embedded in the first limiting groove 42a and the second limiting groove 43a of the inner component 4.

[0062] The method for installing the sealing harness via structure of the present invention comprises:

[0063] Step 1: Prepare the product shell 3, the product internal components 4, the wiring harness, the via cover and the sealant;

[0064] The housing 3 is provided with a through hole, and the outer wall of the housing 3 is provided with a rubber injection ring 31 arranged around the through hole;

[0065] The via cover is a semi-open via cover 1;

[0066] The wiring harness is used to realize the electrical connection between the components inside and outside the housing 3. The wiring harness includes a plurality of cables 2, and the inner end and the outer end of each cable 2 are connected to corresponding connectors;

[0067] The inner component 4 is provided with a complementary structure boss 41, a first limiting boss 42 and a second limiting boss 43. The cross-sectional shape of the complementary structure boss 41 is the same as the shape formed by the guide section 1b1 and the narrowing section 1b2 of the main trunk slot 1a and each branch slot 1b of the semi-open through hole cover sheet 1, and the complementary structure boss 41 is divided into a boss main body part 411 and a boss sub-body part 412 corresponding to the main body part 11 and the sub-body part of the semi-open through hole cover sheet 1, the first limiting boss 42 and the second limiting boss 43 are respectively connected to the two side surfaces of the boss sub-body part 412, and a first limiting groove 42a is formed between the first limiting boss 42 and the boss sub-body part 412, and a second limiting groove 43a is formed between the second limiting boss 43 and the boss sub-body part 412;

[0068] Step 2: fix each cable 2 of the wiring harness in the via cover;

[0069] The cable 2 is fixed in the semi-open through-hole cover 1 in the following manner: the cable 2 passes through the main slot 1a, the guide section 1b1 and the narrowing section 1b2 of the semi-open through-hole cover 1 in sequence and is fixed in the locking hole 1b3;

[0070] Step 3, fix the semi-open via cover sheet 1 on the inner component 4;

[0071] The semi-open via cover sheet 1 is fixed to the inner component 4 in the following manner: the complementary structural boss 41 of the inner component 4 is correspondingly embedded in the main slot 1a and the guide section 1b1 and the narrowing section 1b2 of each branch slot 1b of the semi-open via cover sheet 1, so that: the first limiting portion 12 and the second limiting portion 13 of the semi-open via cover sheet 1 are respectively embedded in the first limiting groove 42a and the second limiting groove 43a of the inner component 4;

[0072] Step 4: electrically connect the connector connected to the inner end of each cable 2 of the wiring harness to the corresponding components inside the housing 3, and fix the inner component 4 inside the housing 3 so that: the via cover is pressed against the inner wall of the housing 3 and covers the via of the housing 3;

[0073] Step 5: Pull the outer ends of the cables 2 of the wiring harness to the outside of the housing 3 by a corresponding length through the injection ring 31, so that the connector connected to the outer end of each cable 2 of the wiring harness can be electrically connected to the corresponding components outside the housing 3;

[0074] Step 6: Inject sealant into the injection ring 31 to ensure that the via hole of the product housing 3 meets the waterproof and dustproof sealing requirements of IP67.

[0075] Therefore, the present invention utilizes the main slot 1a and multiple branch slots 1b on the semi-open via cover 1, so that each cable 2 of the wiring harness can be inserted through the main slot 1a, and then pass through the guide section 1b1 and the narrowing section 1b2 of the corresponding branch slot 1b and then fixed in the corresponding positioning hole 1b3, thereby realizing the rapid fixation of the wiring harness on the semi-open via cover 1.

[0076] Furthermore, the present invention utilizes the complementary structural boss 41 of the inner component 4 to be correspondingly embedded in the main slot 1a of the semi-open via cover sheet 1 and the guide section 1b1 and the narrowing section 1b2 of each branch slot 1b, thereby achieving compensatory sealing of the slots on the semi-open via cover sheet 1, ensuring the sealing between the cable 2 and the semi-open via cover sheet 1, and ensuring that the sealant poured into the sealant injection ring 31 will not leak into the interior of the product housing 3 through the gap between the cable 2 and the semi-open via cover sheet 1;

[0077] Moreover, the present invention utilizes the first limiting groove 42a and the second limiting groove 43a on the inner component 4 to limit the first limiting portion 12 and the second limiting portion 13 on the semi-open via cover 1, thereby preventing the main slot 1a on the semi-open via cover 1 from being stretched open under the force of each cable 2 of the wiring harness, and avoiding the generation of a gap between the semi-open via cover 1 and the complementary structural boss 41 of the inner component 4;

[0078] Therefore, the present invention can conveniently and quickly realize the assembly of the wiring harness and the semi-open via cover 1, and can facilitate the correction of the incorrect installation position of the cable 2 of the wiring harness, and can ensure that the sealant 5 will not leak into the interior of the product housing 3, thereby solving the problem of the existing sealed wiring harness via structure that the convenience of wiring harness assembly and the sealing effect of the sealant 5 cannot be taken into account at the same time.

[0079] Based on the above inventive concept, the present invention adopts the following preferred structure:

[0080] As a preferred embodiment of the present invention: the semi-open through-hole cover 1 is also provided with an outer guide boss 14 corresponding to each positioning hole 1b3, and the side of the outer guide boss 14 is provided with a guide groove with an arched cross-section, the bottom of the outer guide boss 14 is connected to the top surface of the main body 11 of the semi-open through-hole cover 1, and the guide groove of each outer guide boss 14 is connected to the corresponding positioning hole 1b3. Thus, when the cable 2 of the wiring harness is fixed in the locking hole 1b3 of the semi-open through-hole cover 1 in the above step three, the outer end of the cable 2 is placed in the guide groove of the corresponding outer guide boss 14, which can prevent the outer end of the cable 2 from turning outward to the outside of the semi-open through-hole cover 1, thereby preventing the turned-out cable 2 from affecting the installation and fixation of the semi-open through-hole cover 1 on the inner component 4; and, through the outer guide boss 14, the cable 2 can be more stably fixed on the semi-open through-hole cover 1, preventing the cable 2 from detaching from the semi-open through-hole cover 1 during the assembly process of the sealed wiring harness through-hole structure; therefore, the present invention can improve the assembly efficiency of the sealed wiring harness through-hole structure and the reliability of the assembly process.

[0081] As a preferred embodiment of the present invention, the semi-open via cover sheet 1 is further provided with a plurality of reinforcing ribs 15, which are connected to the top surface of the main body 11 of the semi-open via cover sheet 1, and each reinforcing rib 15 is connected between two adjacent outer guide bosses 14. Thus, the strength of the semi-open via cover sheet 1 is enhanced.

[0082] As a preferred embodiment of the present invention: the width of the main slot 1a and the width of the guide section 1b1 of the branch slot 1b are at least equal to and preferably larger than the diameter of the cable 2. Therefore, in the above step 2, it is easier to insert the cable 2 into the semi-open via cover 1.

[0083] As a preferred embodiment of the present invention: the main body 11 of the semi-open via cover 1 is circular, and the main slot 1a passes through the center of the circle; the multiple branch slots 1b are even in number and are arranged in pairs, and each pair of branch slots 1b is located on a straight line segment perpendicular to the main slot 1a. Thus, the layout of the semi-open via cover 1 can be made more regular, which is convenient for fixing the cable 2 on the semi-open via cover 1, and the influence of the slots on the strength of the semi-open via cover 1 can be minimized.

[0084] As a preferred embodiment of the present invention, a buckle 44 is provided on the top surface of the boss sub-body 412 of the complementary structure boss 41, so that when the semi-open via cover sheet 1 is fixed on the inner component 4, the top surface of the complementary structure boss 41 is flush with the top surface of the semi-open via cover sheet 1, and the semi-open via cover sheet 1 is clamped between the buckle 44 and the first limiting groove 42a and the second limiting groove 43a. Thus, the semi-open via cover sheet 1 can be prevented from detaching upward from the complementary structure boss 41.

[0085] As a preferred embodiment of the present invention: an inner guide boss 4111 is provided on the top surface of the boss body 411 of the complementary structure boss 41 corresponding to each of the positioning holes 1b3. Thus, when the cable 2 of the wiring harness is fixed in the positioning hole 1b3 of the semi-open through-hole cover 1 in the above step three, the outer end of the cable 2 is placed between the guide groove of the corresponding outer guide boss 14 and the corresponding inner guide boss 4111, which can prevent the outer end of the cable 2 from turning inward to the inner side of the semi-open through-hole cover 1, and avoid the inward-turned cable 2 from affecting the installation and fixation of the semi-open through-hole cover 1 on the inner component 4; and the inner guide boss 4111 can further stably fix the cable 2 on the semi-open through-hole cover 1, and prevent the cable 2 from detaching from the semi-open through-hole cover 1 during the assembly process of the sealed wiring harness through-hole structure; therefore, the present invention can improve the assembly efficiency of the sealed wiring harness through-hole structure and the reliability of the assembly process.

[0086] As a preferred embodiment of the present invention, a gap is reserved between the bottom surface of the semi-open through-hole cover sheet 1 and the end surface 4a of the inner component 4 at the location of the complementary structure boss 41 for the cable 2 to pass through. In addition, the gap may not be reserved, but a through hole or a wire groove may be opened on the inner component 4 for the cable 2 to pass through.

[0087] The present invention is applicable to, but not limited to, a sealing harness via structure for an automobile wire-controlled shift actuator.

[0088] The present invention is not limited to the above-mentioned specific implementation modes. According to the above-mentioned contents, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the present invention, the present invention can also make other various forms of equivalent modifications, replacements or changes, all of which fall within the protection scope of the present invention.

Claims

1. A sealed wiring harness via structure, comprising a product shell (3), an internal component (4) of the product, a wiring harness, a via cover and a sealant; the shell (3) is provided with a via, and the outer wall of the shell (3) is provided with a rubber injection ring (31) arranged around the via; the wiring harness is used to realize electrical connection between components inside and outside the shell (3), the wiring harness comprises a plurality of cables (2), and the inner end and the outer end of each of the cables (2) are connected to a corresponding connector; each cable (2) of the wiring harness is fixed In the via cover sheet, the via cover sheet is fixed on the inner component (4), and the inner component (4) is fixed inside the outer shell (3), so that: the via cover sheet is pressed against the inner wall of the outer shell (3) and covers the via hole of the outer shell (3), and the inner end of each of the cables (2) is located inside the outer shell (3), and the outer end of each of the cables (2) passes through the via hole of the outer shell (3) and the injection ring (31) to the outside of the outer shell (3); the sealant is poured into the injection ring (31); Features: The via cover sheet is a semi-open via cover sheet (1); The semi-open through-hole cover sheet comprises a main body (11), and a main slot (1a) is provided on the semi-open through-hole cover sheet (1); the semi-open through-hole cover sheet (1) also comprises a secondary body connected to the main body (11), the head end and the tail end of the main slot (1a) are respectively located at the edge position of the secondary body and the inner position of the main body (11), and the main slot (1a) divides the secondary body into a first limiting portion (12) and a second limiting portion (13); and the main body (11) is also provided with a plurality of slots (14) and a plurality of slots (15) Branch slots (1b), the head end of each branch slot (1b) is connected to the main slot (1a), the tail end of each branch slot (1b) is located inside the main body (11), and the branch slots (1b) are composed of a guide section (1b1), a narrowing section (1b2) and a positioning hole (1b3) suitable for accommodating a cable (2) in sequence from the head end to the tail end, and the main body (11) is formed with a limiting clip (111) in the narrowing section (1b2) that can limit the cable (2) in the positioning hole (1b3); The cable (2) is fixed in the semi-open through-hole cover (1) in the following manner: the cable (2) passes through the main slot (1a), the guide section (1b1) and the narrowing section (1b2) of the semi-open through-hole cover (1) in sequence and is then fixed in the locking hole (1b3); The inner component (4) is provided with a complementary structural boss (41), a first limiting boss (42) and a second limiting boss (43); the cross-sectional shape of the complementary structural boss (41) is the same as the shape formed by the guide section (1b1) and the narrowing section (1b2) of the main trunk slot (1a) and each branch slot (1b) of the semi-open through-hole cover sheet (1); and the complementary structural boss (41) is divided into a main body portion (1b1) corresponding to the semi-open through-hole cover sheet (1). 1) and a boss main body (411) and a boss sub-body (412) of the boss sub-body, the first limiting boss (42) and the second limiting boss (43) are respectively connected to two side surfaces of the boss sub-body (412), and a first limiting groove (42a) is formed between the first limiting boss (42) and the boss sub-body (412), and a second limiting groove (43a) is formed between the second limiting boss (43) and the boss sub-body (412); The semi-open through-hole cover sheet (1) is fixed to the inner component (4) in the following manner: the complementary structural boss (41) of the inner component (4) is correspondingly embedded in the guide section (1b1) and the narrowing section (1b2) of the main slot (1a) and each branch slot (1b) of the semi-open through-hole cover sheet (1), so that the first limiting portion (12) and the second limiting portion (13) of the semi-open through-hole cover sheet (1) are respectively embedded in the first limiting groove (42a) and the second limiting groove (43a) of the inner component (4).

2. The sealing harness via structure according to claim 1, characterized in that: A buckle (44) is provided on the top surface of the boss auxiliary body (412) of the complementary structure boss (41); so that when the semi-open through-hole cover sheet (1) is fixed on the inner component (4), the top surface of the complementary structure boss (41) is flush with the top surface of the semi-open through-hole cover sheet (1), and the semi-open through-hole cover sheet (1) is clamped between the buckle (44) and the first limiting groove (42a) and the second limiting groove (43a).

3. The sealing harness via structure according to claim 1 or 2, characterized in that: An inner guide boss (4111) is provided on the top surface of the boss body (411) of the complementary structure boss (41) corresponding to each of the positioning holes (1b3).

4. The sealing harness via structure according to claim 1 or 2, characterized in that: A gap for the cable (2) to pass through is left between the bottom surface of the semi-open through-hole cover sheet (1) and the end surface (4a) of the inner component (4) at the location of the complementary structural boss (41).

5. The sealing harness via structure according to claim 1, characterized in that: The semi-open through-hole cover sheet (1) is also provided with an outer guide boss (14) corresponding to each of the locking holes (1b3); the side of the outer guide boss (14) is provided with a guide groove with an arched cross-section; the bottom of the outer guide boss (14) is connected to the top surface of the main body (11) of the semi-open through-hole cover sheet (1), and the guide groove of each of the outer guide bosses (14) is connected to the corresponding locking hole (1b3).

6. The sealing harness via structure according to claim 5, characterized in that: The semi-open through-hole cover sheet (1) is also provided with a plurality of reinforcing ribs (15), wherein the reinforcing ribs (15) are connected to the top surface of the main body (11) of the semi-open through-hole cover sheet (1), and each of the reinforcing ribs (15) is connected between two adjacent outer guide bosses (14).

7. The sealing harness via structure according to any one of claims 1, 5 and 6, characterized in that: The width of the main slot (1a) and the width of the guide section (1b1) of the branch slot (1b) are both greater than the diameter of the cable (2).

8. The sealing harness via structure according to any one of claims 1, 5 and 6, characterized in that: The main body (11) of the semi-open through-hole cover sheet (1) is circular, and the main slot (1a) passes through the center of the circle; the plurality of branch slots (1b) are an even number and are arranged in pairs, and each pair of the branch slots (1b) is located on a straight line segment perpendicular to the main slot (1a).

9. A method for installing a sealed wiring harness via structure, characterized in that: The installation methods include: Step 1: Prepare the product shell (3), the product internal components (4), the wiring harness, the via cover sheet and the sealant; The shell (3) is provided with a through hole, and the outer wall of the shell (3) is provided with a rubber injection ring (31) arranged around the through hole; The via cover sheet is a semi-open via cover sheet (1) as claimed in any one of claims 1, 5 to 8; The wiring harness is used to realize electrical connection between components inside and outside the housing (3), and the wiring harness comprises a plurality of cables (2), and the inner end and the outer end of each cable (2) are connected to a corresponding connector; The inner component (4) is provided with a complementary structural boss (41), a first limiting boss (42) and a second limiting boss (43); the cross-sectional shape of the complementary structural boss (41) is the same as the shape formed by the guide section (1b1) and the narrowing section (1b2) of the main trunk slot (1a) and each branch slot (1b) of the semi-open through-hole cover sheet (1); and the complementary structural boss (41) is divided into a main body portion (1b1) corresponding to the semi-open through-hole cover sheet (1). 1) and a boss main body (411) and a boss sub-body (412) of the boss sub-body, the first limiting boss (42) and the second limiting boss (43) are respectively connected to two side surfaces of the boss sub-body (412), and a first limiting groove (42a) is formed between the first limiting boss (42) and the boss sub-body (412), and a second limiting groove (43a) is formed between the second limiting boss (43) and the boss sub-body (412); Step 2: fixing each cable (2) of the wiring harness in the via cover; The cable (2) is fixed in the semi-open through-hole cover (1) in the following manner: the cable (2) passes through the main slot (1a), the guide section (1b1) and the narrowing section (1b2) of the semi-open through-hole cover (1) in sequence and is then fixed in the locking hole (1b3); Step 3, fixing the semi-open through-hole cover sheet (1) on the inner component (4); The semi-open through-hole cover sheet (1) is fixed to the inner component (4) in the following manner: the complementary structural boss (41) of the inner component (4) is correspondingly embedded in the guide section (1b1) and the narrowing section (1b2) of the main slot (1a) and each branch slot (1b) of the semi-open through-hole cover sheet (1), so that the first limiting portion (12) and the second limiting portion (13) of the semi-open through-hole cover sheet (1) are respectively embedded in the first limiting groove (42a) and the second limiting groove (43a) of the inner component (4); Step 4: electrically connect the connector connected to the inner end of each cable (2) of the wiring harness to the corresponding components inside the shell (3), and fix the inner component (4) inside the shell (3) so that: the via cover is pressed against the inner wall of the shell (3) and covers the via of the shell (3); Step 5: Pull the outer ends of the cables (2) of the wiring harness to a corresponding length outside the housing (3) through the rubber injection ring (31), so that the connector connected to the outer end of each cable (2) of the wiring harness can be electrically connected to the corresponding components outside the housing (3); Step six: injecting sealant into the sealant injection ring (31).

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