A wiring harness waterproof structure and an electronic device

Abstract

Embodiments of the present invention disclose a wire harness waterproof structure and an electronic device, which are used to solve the technical problem that the existing wire harness waterproof structure is not convenient for disassembly and maintenance. Embodiments of the present invention include an upper housing, a lower housing, a waterproof sealing ring, and a waterproof wire harness; the upper housing is detachably connected to the lower housing to form a box body, and the waterproof wire harness is connected to the box body; the waterproof wire harness includes a wire harness body and a coating member injection-molded and coated on the outside of the wire harness body; the coating member is fixed on the lower housing; the waterproof sealing ring is arranged on the lower housing and the coating member; when the upper housing is fixed to the lower housing, the upper housing is in interference fit with the waterproof sealing ring.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness waterproof design, and in particular to a wire harness waterproof structure and an electronic device. Background Art

[0002] With the development of technology, most electronic devices, such as intelligent meters, need to externally connect to the control box of the host through wire harnesses to achieve data exchange. Since data exchange is involved, the waterproof requirements for the relevant wire harness structures of intelligent meters often need to reach IPX7 or even IPX8.

[0003] For the wire harness waterproof structure of existing intelligent meters, mainly the wire harness is sleeved into a thermoplastic sleeve, and the thermoplastic sleeve is placed on the lower housing, then the upper housing is fixed on the lower housing to lock the wire harness. Finally, the upper housing, the lower housing and the wire harness are waterproofed by means of dispensing sealant to prevent moisture from affecting the wire harness. In the above wire harness waterproof structure, although it can achieve a good waterproof effect and enable the wire harness structure to meet the IPX7 waterproof requirement, when the device needs to be repaired and inspected, the operator needs to remove the sealant to disassemble the upper housing. The process of removing the glue is cumbersome, increasing the workload of the operator and seriously affecting the maintenance and inspection efficiency of the operator. And each time after the maintenance and inspection is completed, it is necessary to re-apply glue at the sealed part, resulting in a relatively high maintenance cost.

[0004] Therefore, to solve the above technical problems, finding a wire harness waterproof structure that is convenient for maintenance has become an important topic studied by those skilled in the art. Summary of the Invention

[0005] Embodiments of the present invention disclose a wire harness waterproof structure and an electronic device, which are used to solve the technical problem that the existing wire harness waterproof structure is not convenient for disassembly and maintenance.

[0006] Embodiments of the present invention provide a wire harness waterproof structure, including an upper housing, a lower housing, a waterproof sealing ring and a waterproof wire harness;

[0007] The upper housing is detachably connected to the lower housing to form a box body, and the waterproof wire harness is connected to the box body;

[0008] The waterproof wire harness includes a wire harness body and a coating member injection-molded and coated on the outside of the wire harness body, and the coating member is fixed on the lower housing;

[0009] The waterproof sealing ring is arranged on the lower housing and the coating member;

[0010] When the upper housing is fixed to the lower housing, the upper housing is in interference fit with the waterproof sealing ring.

[0011] Optionally, a card slot is provided on the side wall of the lower housing;

[0012] The covering member is snapped into the card slot.

[0013] The card slot is provided with limiting rib strips, and the covering member protrudes outwards with a first limiting baffle and a second limiting baffle that match the limiting rib strips. The first limiting baffle and the second limiting baffle are distributed along the axis of the covering member, and the limiting rib strips are clamped between the first limiting baffle and the second limiting baffle.

[0014] Optionally, a first installation groove is formed on the side of the lower housing facing the upper housing, and the first installation groove is recessed towards the inside of the lower housing.

[0015] The waterproof sealing ring has an integrally formed first part and a second part. Among them, the first part is clamped in the first installation groove.

[0016] Optionally, the covering member further protrudes outwards with a third limiting baffle. The third limiting baffle and the second limiting baffle form a second installation groove on the outer side wall of the covering member. The second installation groove is connected to the first installation groove, and the second part is clamped in the second installation groove.

[0017] Optionally, the side of the upper housing facing the lower housing is provided with a first rib corresponding to the position of the first installation groove and a second rib corresponding to the position of the second installation groove.

[0018] When the upper housing is fixed to the lower housing, the first rib is in interference fit with the first part, and the second rib is in interference fit with the second part.

[0019] Optionally, a clamping position is provided on the groove wall of the second installation groove.

[0020] The outer side wall of the second part protrudes outwards with a limiting block. The limiting block is perpendicular to the second part, and the limiting block is clamped in the clamping position.

[0021] Optionally, it further includes fixing screws.

[0022] A plurality of threaded holes are formed on the lower housing, and the threaded holes are distributed around the first installation groove.

[0023] A plurality of through holes corresponding to the positions of the threaded holes are formed on the upper housing.

[0024] The fixing screws pass through the through holes and are threadedly connected to the threaded holes to fix the upper housing to the lower housing.

[0025] Optionally, a plurality of fixing card holes are formed in the lower housing, and the fixing card holes are distributed around the first mounting groove;

[0026] A plurality of fixing card posts corresponding to the positions of the fixing card holes are formed in the upper housing;

[0027] The fixing card posts are inserted into the fixing card holes to fix the upper housing on the lower housing.

[0028] Optionally, the waterproof sealing ring is a silica gel ring.

[0029] An embodiment of the present invention provides an electronic device, including the above-mentioned wiring harness waterproof structure.

[0030] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0031] In the wiring harness waterproof structure in this embodiment, a waterproof sealing ring is provided on the covering member of the waterproof wiring harness and the lower housing. When the upper housing is fixed to the lower housing, the upper housing is in interference fit with the waterproof sealing ring. Through the above design, moisture can be effectively blocked from contacting the wiring harness, enabling the wiring harness waterproof structure to meet the IPX7 waterproof requirement. In addition, when disassembling, assembling, repairing, and inspecting the wiring harness waterproof structure, the operator does not need to perform the glue cleaning step and can directly disassemble and assemble the upper housing, which reduces the operation difficulty, effectively improves the efficiency of repair and inspection, and reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 A schematic diagram of a wiring harness waterproof structure provided by the present invention;

[0034] Figure 2 A schematic diagram of a wiring harness waterproof structure provided by the present invention excluding the upper housing;

[0035] Figure 3 A schematic diagram of the waterproof sealing ring in a wiring harness waterproof structure provided by the present invention;

[0036] Figure 4 A schematic diagram of the position of the first mounting groove in a wiring harness waterproof structure provided by the present invention;

[0037] Figure 5Schematic diagram of a waterproof wire harness in a wire harness waterproof structure provided by the present invention;

[0038] Figure 6 Schematic diagram of a lower housing in a wire harness waterproof structure provided by the present invention;

[0039] Figure 7 Schematic diagram of an upper housing in a wire harness waterproof structure provided by the present invention;

[0040] Illustration: Upper housing 1; Through hole 101; First rib 102; Second rib 103; Lower housing 2; Threaded hole 201; First mounting groove 202; Limit rib 203; Card slot 204; Waterproof wire harness 3; Wrapping member 301; Wire harness body 302; First limit baffle 3011; Second limit baffle 3012; Third limit baffle 3013; Second mounting groove 3014; Clamping position 3015; Fixing screw 4; Waterproof sealing ring 5; First part 501; Second part 502; Limit block 503. Detailed implementation manner

[0041] An embodiment of the present invention discloses a wire harness waterproof structure and an electronic device, which are used to solve the technical problem that the existing wire harness waterproof structure is not convenient for disassembly and maintenance.

[0042] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] Embodiment 1

[0044] Please refer to Figures 1 to 7 , a wire harness waterproof structure provided in this embodiment includes:

[0045] Upper housing 1, lower housing 2, waterproof sealing ring 5 and waterproof wire harness 3;

[0046] The upper housing 1 and the lower housing 2 are connected to each other to form a box body. Specifically, the upper housing 1 and the lower housing 2 are fixed by a detachable connection, such as screw fixation or snap fixation. This embodiment does not limit this.

[0047] The waterproof wire harness 3 is connected to the box body. Specifically, the waterproof wire harness 3 includes a wire harness body 302 and a coating member 301 injection-molded and coated outside the wire harness body 302. The coating member 301 is fixed on the lower housing 2. The first end of the wire harness body 302 is located inside the lower housing 2, and the second end of the wire harness body 302 is located outside the lower housing 2.

[0048] The waterproof sealing ring 5 is arranged on the lower housing 2 and the coating member 301. Specifically, the waterproof sealing ring 5 is arranged around the first end of the wire harness body 302.

[0049] When the upper housing 1 is fixed to the lower housing 2, the edge of the upper housing 1 is locked with the edge of the lower housing 2, and the upper housing 1 presses the waterproof sealing ring 5 to achieve an interference fit with the waterproof sealing ring 5.

[0050] It should be noted that the waterproof sealing ring 5 is a silicone sealing ring or a rubber sealing ring with elasticity.

[0051] In the wire harness waterproof structure of this embodiment, the waterproof sealing ring 5 is arranged on the coating member 301 of the waterproof wire harness 3 and the lower housing 2. When the upper housing 1 is fixed to the lower housing 2, the upper housing 1 has an interference fit with the waterproof sealing ring 5. Through the above design, moisture can be effectively blocked from contacting the wire harness, enabling the wire harness waterproof structure to meet the IPX7 waterproof requirement. In addition, when disassembling, assembling, inspecting and maintaining the wire harness waterproof structure, the operator does not need to perform the step of removing glue, and can directly disassemble and assemble the upper housing 1, which reduces the operation difficulty, effectively improves the efficiency of inspection and maintenance, and reduces the maintenance cost.

[0052] Furthermore, in this embodiment, a card slot 204 is arranged on the side wall of the lower housing 2. Specifically, the shape of the card slot 204 is designed according to the shape of the coating member 301. In this embodiment, the card slot 204 is designed as a U-shaped card slot.

[0053] The coating member 301 is snapped into the card slot 204, and the top of the coating member 301 protrudes outside the lower housing 2.

[0054] A limiting rib 203 is arranged in the card slot 204. The coating member 301 extends outwards with a first limiting baffle 3011 and a second limiting baffle 3012 that match the limiting rib 203. Among them, the first limiting baffle 3011 and the second limiting baffle 3012 are distributed along the axis of the coating member 301. The first limiting baffle 3011 and the second limiting baffle 3012 are arranged at a preset distance apart, and the limiting rib 203 is clamped between the first limiting baffle 3011 and the second limiting baffle 3012.

[0055] It should be noted that through the above design, the limiting rib 203 cooperates with the first limiting baffle 3011 and the second limiting baffle 3012 to prevent the covering member 301 from moving along its axis (front-back displacement) in the card slot 204, ensuring the stability of the wire harness waterproof structure.

[0056] Furthermore, the waterproof sealing ring 5 in this embodiment has an integrally formed first part 501 and a second part 502. The first part 501 is arranged on the lower housing 2, and the second part 502 is arranged on the covering member 301.

[0057] Specifically, a first installation groove 202 is formed on the side surface of the lower housing 2 facing the upper housing 1. The first installation groove 202 is recessed into the interior of the lower housing 2 and is an annular groove.

[0058] The covering member 301 protrudes outwards with a third limiting baffle 3013. The third limiting baffle 3013, the second limiting baffle 3012, and the first limiting baffle 3011 are distributed along the axis of the covering member 301.

[0059] The third limiting baffle 3013 and the second limiting baffle 3012 form a second installation groove 3014 on the outer side wall of the covering member 301. The second installation groove 3014 is an annular groove arranged along the circumferential direction of the covering member 301, and the second installation groove 3014 is connected to the first installation groove 202.

[0060] The first part 501 of the waterproof sealing ring 5 is snap-fitted into the first installation groove 202.

[0061] The second part 502 of the waterproof sealing ring 5 is snap-fitted into the second installation groove 3014.

[0062] Furthermore, on the side surface of the upper housing 1 facing the lower housing 2 in this embodiment, there are a first rib 102 corresponding to the position of the first installation groove 202 and a second rib 103 corresponding to the position of the second installation groove 3014.

[0063] When the upper housing 1 is fixed to the lower housing 2, the first rib 102 and the first part 501 are in interference fit, and the second rib 103 and the second part 502 are in interference fit.

[0064] It should be noted that through the above design, the gaps between the upper housing 1, the lower housing 2, and the covering member 301 can be completely filled with the waterproof sealing ring 5, effectively blocking moisture from entering the interior of the box and coming into contact with the wire harness body 302, making the wire harness waterproof structure in this embodiment meet the IPX7 waterproof requirement.

[0065] Furthermore, a clamping position 3015 is provided on the groove wall of the second installation groove 3014. A limiting block 503 protrudes outward from the outer side wall of the second part 502. The limiting block 503 is perpendicular to the second part 502, and the limiting block 503 is clamped in the clamping position 3015.

[0066] It should be noted that the limiting block 503 and the second part 502 are also integrally formed structures. That is, after the waterproof sealing ring 5 is taken out of the mold, the limiting block 503 is already provided on the second part 502. Through the design of the limiting block 503, the displacement of the second part 502 along the length direction (left - right direction) of the second installation groove 3014 can be effectively prevented, ensuring the stability of the wire harness waterproof structure. And when installing the waterproof sealing ring 5, the above - mentioned design can provide positioning for the operator, enabling the operator to install the waterproof sealing ring 5 more quickly.

[0067] Furthermore, in this embodiment, the upper shell 1 and the lower shell 2 can be detachably connected by means of screw fixation;

[0068] Specifically, a plurality of threaded holes 201 are provided on the lower shell 2, and the threaded holes 201 are distributed around the first installation groove 202;

[0069] A plurality of through holes 101 corresponding to the positions of the threaded holes 201 are provided on the upper shell 1;

[0070] The fixing screw 4 passes through the through hole 101 and is threadedly connected to the threaded hole 201 to fix the upper shell 1 to the lower shell 2.

[0071] It should be noted that when the operator disassembles the upper shell 1, by loosening the fixing screw 4 with a screwdriver, the upper shell 1 and the lower shell 2 can be separated. When the operator assembles the upper shell 1 to the lower shell 2, by tightening the fixing screw 4 with a screwdriver, the upper shell 1 and the lower shell 2 can be locked. Through the above - mentioned design, the operator can quickly disassemble and assemble the upper shell 1, reducing the operation difficulty and effectively improving the work efficiency of maintenance and inspection.

[0072] Furthermore, in addition to using the above - mentioned method for detachable connection, the upper shell 1 and the lower shell 2 in this embodiment can also be detachably connected by means of snap - fit fixation;

[0073] Specifically, a plurality of fixing card holes are provided on the lower shell 2, and the fixing card holes are distributed around the first installation groove 202;

[0074] A plurality of fixing card posts corresponding to the positions of the fixing card holes are provided on the upper shell 1;

[0075] The fixing stud is snapped into the fixing hole to fix the upper housing 1 on the lower housing 2.

[0076] It should be noted that when the operator disassembles the upper housing 1, the operator directly pulls the upper housing 1 upward with force, and the upper housing 1 can be separated from the lower housing 2. When the operator assembles the upper housing 1 to the lower housing 2, the fixing stud of the upper housing 1 is directly snapped into the fixing hole, and the upper housing 1 and the lower housing 2 can be locked. Through the above design, the operator can quickly disassemble and assemble the upper housing 1, reducing the operation difficulty and effectively improving the work efficiency of maintenance and inspection.

[0077] In addition to the above two methods, the detachable method of the upper housing 1 and the lower housing 2 in this embodiment may also include snap connection and so on. The designer can select a detachable method that is convenient for the operator according to the needs of the product. This embodiment does not limit the detachable method of the upper housing 1 and the lower housing 2.

[0078] Embodiment 2

[0079] Please refer to Figures 1 to 7 , this embodiment provides an electronic device, which can be a smart meter, a computer, etc.;

[0080] The electronic device includes a wire harness waterproof structure as described in Embodiment 1, and the wire harness waterproof structure can be combined with the outer housing of the electronic device.

[0081] In the electronic device of this embodiment, waterproof seals 5 are provided on the covering 301 of the waterproof wire harness 3 and the lower housing 2. When the upper housing 1 is fixed to the lower housing 2, the upper housing 1 is in interference fit with the waterproof seal 5. Through the above design, moisture can be effectively blocked from contacting the wire harness, enabling the wire harness waterproof structure to meet the IPX7 waterproof requirement. In addition, when disassembling, assembling, maintaining, and inspecting the wire harness waterproof structure, the operator does not need to perform the glue cleaning step and can directly disassemble and assemble the upper housing 1, reducing the operation difficulty, effectively improving the efficiency of maintenance and inspection, and reducing the maintenance cost.

[0082] The above has introduced in detail a wire harness waterproof structure and an electronic device provided by the present invention. For those of ordinary skill in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A waterproof structure for a wire harness, characterized in that, It includes an upper shell, a lower shell, a waterproof sealing ring and a waterproof wire harness; The upper shell and the lower shell are detachably connected to form a box body, and the waterproof wire harness is connected to the box body; The waterproof wire harness includes a wire harness body and a coating member injection-molded and coated on the outside of the wire harness body, and the coating member is fixed on the lower shell; The waterproof sealing ring is arranged on the lower shell and the coating member; When the upper shell is fixed to the lower shell, the upper shell is in interference fit with the waterproof sealing ring; A clamping groove is arranged on the side wall of the lower shell; The coating member is snapped into the clamping groove; Limit ribs are arranged in the clamping groove, and the coating member protrudes outwards with a first limit baffle and a second limit baffle that match the limit ribs. The first limit baffle and the second limit baffle are distributed along the axis of the coating member, and the limit ribs are clamped between the first limit baffle and the second limit baffle; A first installation groove is formed on the side surface of the lower shell facing the upper shell, and the first installation groove is recessed into the interior of the lower shell; The waterproof sealing ring has an integrally formed first part and a second part. Among them, the first part is snapped into the first installation groove; The coating member also protrudes outwards with a third limit baffle. The third limit baffle and the second limit baffle form a second installation groove on the outer side wall of the coating member. The second installation groove is connected to the first installation groove, and the second part is snapped into the second installation groove; A first rib corresponding to the position of the first installation groove and a second rib corresponding to the position of the second installation groove are arranged on the side surface of the upper shell facing the lower shell; When the upper shell is fixed to the lower shell, the first rib is in interference fit with the first part, and the second rib is in interference fit with the second part; A clamping position is arranged on the groove wall of the second installation groove; A limit block protrudes outwards from the outer side wall of the second part. The limit block is perpendicular to the second part, and the limit block is snapped into the clamping position; 2. The wire harness waterproof structure according to claim 1, wherein It also includes fixing screws; A plurality of threaded holes are formed on the lower shell, and the threaded holes are distributed around the first installation groove; A plurality of through holes corresponding to the positions of the threaded holes are formed on the upper shell; The fixing screws pass through the through holes and are threadedly connected to the threaded holes to fix the upper shell to the lower shell; 3. The wire harness waterproof structure according to claim 1, characterized in that, A plurality of fixing card holes are formed on the lower shell, and the fixing card holes are distributed around the first installation groove; A plurality of fixing card posts corresponding to the positions of the fixing card holes are formed on the upper shell; The fixing card posts are snapped into the fixing card holes to fix the upper shell to the lower shell; 4. The wire harness waterproof structure according to claim 1, characterized in that The waterproof sealing ring is a silicone ring; 5. An electronic device, characterized in that, It includes the wire harness waterproof structure according to any one of claims 1 to 4.

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