CN1551436B - Waterproofing structure for electric junction box - Google Patents
Waterproofing structure for electric junction box Download PDFInfo
- Publication number
- CN1551436B CN1551436B CN 200410038453 CN200410038453A CN1551436B CN 1551436 B CN1551436 B CN 1551436B CN 200410038453 CN200410038453 CN 200410038453 CN 200410038453 A CN200410038453 A CN 200410038453A CN 1551436 B CN1551436 B CN 1551436B
- Authority
- CN
- China
- Prior art keywords
- wall
- connection box
- cover
- wall portion
- rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004078 waterproofing Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000010276 construction Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 206010068051 Chimerism Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Casings For Electric Apparatus (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
To provide the waterproof structure of an electric connection box which can raise waterproofness according to a simple structure. Since the moisture dropped to an external double wall 23U provided at the upper side of the electric connection box 10 in a using state flows through the outside of cover members 30f, 30r, the moisture can be prevented from being flooded into the electric connection box 10. If the moisture flows to a body 20 side along the cover members 30f, 30r to flood into the external double wall 23, ribs 32a protruding from the engaging edges 32f, 32r of the cover members 30f, 30r toward the inner surface 24a of the external double wall 23 prevent the moisture from being flooded, and the moisture can be prevented from being flooded into the electric connection box 10. (C)2005,JPO&NCIPI.
Description
Technical field
The present invention relates to the waterproof construction of connection box.
Background technology
Generally, the connection box that is used for motor circuit is configured in the engine room mostly, still, also is configured in the car sometimes.At this moment, though it is few directly to spill the situation of water,, at present popular car during wet-cleaned (washing), when spilling beverage when perhaps in car, having meal and spattering condensed water from the air conditioning duct outflow, will require in car, also will prevent into water.
Consider to use O shape ring in order to obtain favorable waterproof property, but this need form and O shape is encircled corresponding groove on body and cover.Like this, can recruit and to rise, use O shape ring such as die cost number of spare parts is increased and problems such as assembling increase in man-hour.
At described problem, in open communique 55-129479 number of the practical new case application of Japan, delivered as illustrated in fig. 6 by constituting connection box 100 by body 101 and cover 102, like this, be formed on watertight waterproof construction 103 between body 101 and the cover 102 (with reference to first page, first figure).
That is, as shown in Figure 7, it is the framework 104 of L type that section is set on the perisporium 101a of body 101, forms cannelure 105 between the perisporium 101a of this framework 104 and body 101, simultaneously, the nappe 106 that covers framework 104 is set around cover 102.And, between the upright root of framework 104 and nappe 106, form suitable space, and then the hang plate 107 of front end near the perisporium 101a of body 101 is set on the end of the limit of nappe 106.
But,,, probably can leak because aging etc. the deforming of body 101 and cover 102 after forming will produce the gap between body 101 and cover 102 even in described connection box.
At this, in open communique 11-41748 number of Japan's patent application, delivered the waterproof construction that should be able to solve described problem as shown in Figure 8 (with reference to the 2nd, 3 page, first figure).
That is, constitute this connection box 110, form skirt section 113, thereby form the embeded slot 114 of closed upper portion in the periphery bottom of loam cake 111 by loam cake 111 and lower cover 112.Loam cake 111 is covered on lower cover 112, so that the perisporium 112a of the upper end of lower cover 112 is entrenched in the embeded slot 114.Like this, form three layers of wall, seek waterproof by skirt section 113 and lower cover 112.
But, at described connection box 110, finish simultaneously as the lower cover 112 of body with as the location and the waterproof of the loam cake 111 of cover, thereby, when making lower cover 112 and loam cake 111 distortion because of wearing out, the perisporium 112a on the top of lower cover 112 is stuck on the step 113a at 113 middle parts, skirt section of loam cake 111 as illustrated in fig. 18, makes mutual chimeric very difficult.
Summary of the invention
The object of the present invention is to provide the waterproof construction that can improve a kind of connection box of water proofing property by simple structure.
For reaching described purpose, the invention provides a kind of connection box, it has: body, this body have and surround the inner space and along body wall portion that first direction extends; Two layers of wall portion, it is arranged on the body wall portion that is configured in upside in a plurality of body wall portion of described body at least under user mode, has inner and outer wall and be formed with groove between described outer wall and described inwall; Described outer wall is for being configured in the part of the body wall portion of upside at least under user mode in a plurality of body wall portion of described body, described inwall extends continuously and along described first direction from described outer wall; Cover, this cover have a plurality of chimeric end limit of extending along described first direction, are entrenched in the outside of described inwall and inaccessible described inner space by making described a plurality of chimeric ends limit; Rib, its leading section that is embedded in the chimeric end limit in the described groove from described a plurality of chimeric ends limit extends continuously and along the second direction perpendicular to described first direction, and the length dimension of described rib is bigger than the water droplet size that forms in described groove; Described first direction is the chimeric direction of described body and described cover.
At the connection box that constitutes like this, the water that drips in two layers of wall portion of user mode connection box upside setting passes through the flows outside of second casing, immerses connection box inside so can prevent water.
In addition, also can stop water to immerse, immerse connection box inside so can prevent water at water rib when second casing flows to the first casing side and enters two layers of wall portion.And, can prevent that sealing immerses the inner space by capillarity
The front end of described rib preferably contacts the inner face of described outer wall.
Like this, can stop water to immerse more reliably with rib.
Described outer wall preferably has the length that covers described rib at least.
Like this, rib covers with two layers of wall portion, crosses rib and immerses so can prevent sealing.
Preferably the engaging part that at least one the chimeric end checkpost in the described a plurality of chimeric ends limit that embeds in the described groove is combined in this groove is arranged on the inwall that is provided with described two layers of wall portion.
Like this, because clamping close device is arranged on the inwall of two layers of wall portion, immerse from the part that engaging part is set so can prevent sealing.
The length dimension of described rib is preferably more than the 1.5mm
Fig. 1 is the three-dimensional exploded view of waterproof construction that expression relates to the connection box of one embodiment of the present invention;
Description of drawings
Fig. 2 is the profile in the two layers of wall portion in the outside of the II-II position of Fig. 1;
Fig. 3 is the amplification profile in the III of Fig. 2 part;
Fig. 4 is the profile that flows of the water that drips from the top of expression connection box of the present invention;
Fig. 5 is the pattern vertical view that flows of the water that drips from the top of expression connection box of the present invention;
Fig. 6 is the stereogram of an example of the existing electric connection line case of expression;
Fig. 7 is the profile of the XV II-XV II position of Fig. 6;
Fig. 8 is another routine stereogram of the existing connection box of expression;
Fig. 9 is the profile of problem of the connection box of presentation graphs 8.
Below, explain the execution mode of the waterproof construction that relates to connection box of the present invention with reference to the accompanying drawings.
Embodiment
As shown in Figure 1, relate to the connection box 10 of one embodiment of the invention has the body 20 that peristome 21f, 21r are set and covers this body 20 on the two sides, front and back front and back peristome 21f, 21r two outsides and chimeric a pair of cover 30f, 30r.Body 20, cover 30f, 30r etc., general, make by synthetic resin.This connection box 10 for example, roughly uses along the state of vertical plane with two peristome 21f, the 21r of body 20.
Be provided for installing the folding and unfolding electrical equipment installed part seat 22 of various electrical equipment installed parts in the inside of body 20, in the periphery of body 20, body wall portion 23 is set in the both sides, front and back of the chimeric direction (direction of arrow among Fig. 1) of cover 30f, 30r.In body wall portion 23, become the 23U of body wall portion of upside at least in user mode for connection box 10, two directions are provided with outer wall 24a and the inwall 24b that constitutes outside inner two layers of wall portion forwards, backwards respectively.
In addition, also may be round outer wall 24a and inwall 24b are set in full week.
As shown in Figure 2, between outer wall 24a and inwall 24b, establish predetermined gap 25 by being located at two layers of wall portion in outside that outer wall 24a on the body 20 and inwall 24b constitute, by difference chimeric cover 30f, 30r in this gap 25, be formed on the structure that comprises cover 30f, 30r between outer wall 24a and the inwall 24b.
In addition, at cover 30f, 30r, the inboard of wall 32r 32f (downside of Fig. 2), the ribs 37 of the leading section of the outstanding to the inside inwall 24b that is provided for engaging body wall portion 23.Thus, keep inwall 24b, body 20 and two cover 30f, 30r can be integrated reliably.
In addition, be provided with in the inboard as the cross direction of the lateral surface outer wall 24a of the inwall 24b of the inboard of outside two layers of wall portion and block projection 26, the chimerism that it keeps cover 30f, 30r blocks cover 30f, 30r, prevents to come off.
As shown in Figure 1, the cover 30r of dorsal part will cover the peristome 21r of the dorsal part of described body 20, the substrate 31r with general rectangular, and on the periphery of this substrate 31r, substrate 31r is provided with wall 32r perpendicular to (chimeric direction).As shown in Figure 2, at the front end of the wall 32r that becomes chimeric end limit to the outstanding rib 32a that is provided with of the outer wall 24a of body wall portion 23.
As shown in Figure 3, the height of rib 32a is an ideal with the inner face 24d that its front end 32b touches just at outer wall 24a, and the outstanding size H of rib 32a specifically will thus, just can prevent that sealing infiltrates because of capillarity more than 1.5mm more than the drop diameter size at least.
And then the side 32c of rib 32a preferably contacts the central side 32e of body wall portion 23.The internal direction of current direction body wall portion 23 can be prevented like this, water proofing property can be improved.In addition, fully rib 32a to be covered in inboard with its front end face 24c at least be ideal to the length of outer wall 24a.
As shown in Figure 1, the wall 32r of cover 30r is provided with breach 33a, 33b according to diverse location, disturb with the installation bracket on the electrical equipment installed part seat 22 of avoiding and be arranged on body 20 34, perhaps form the connector cover that covering is installed in the connector on the electrical equipment installed part seat 22 is installed.
The rib 32a that is arranged on the front end of wall 32r spreads all over full Zhou Lianxu according to the shape of wall 32r along breach 33a, 33b etc. and is provided with.Thereby, stop the inboard of immersing cover 30r attached to the water on the outside of cover 30r reliably by rib 32a.
In addition, the rib 32a that is provided with along breach 33a, 33b etc. will be from the body 20 side direction outside, in the setting that tilts of breach 33a, the narrow direction of 33b stenosis.That is, rib 32a must be converted into obtuse angle (θ among Fig. 1), makes along the current of rib 32a unobstructedly, can prevent that sealing accumulates.Like this, can improve water proofing property.
In addition, as shown in Figure 1, the cover 30f of table side will cover the peristome 21f of the table side of body 20, forms the shape identical with the cover 30r of described dorsal part.That is,, extend in chimeric direction wall 32f be set in the periphery of substrate 31f, be provided with on the front end of wall 32f with cover 30r at described dorsal part on the identical rib 32a of rib 32a that is provided with.In addition, on cover 30f, for fear of be installed in folding and unfolding electrical equipment installed part seat 22 on the mutual interference mutually of electrical equipment installed part, the shape of corresponding electrical equipment installed part or recess 35 is set or breach 36a, 36b are set.
In Fig. 4, the stream of the water that expression is dripped from the upside of connection box 10.The water that drops on the upside body wall 23U of portion from the top flows to (about Fig. 4) both sides (arrow A among Fig. 4), front and back above outer wall 24a, drop on wall 32f, the 32r last (arrow B) of cover 30f, 30r.Drop on the part of the water on wall 32f, the 32r in case the rib 32a that the flow direction inboard (arrow C) also can be set on wall 32f, the 32r keeps off back, flow to the outside of cover 30f, 30r, fall (arrow D) then.
In addition, as shown in Figure 5, the part of the water of the flow direction inboard of the arrow C indication of Fig. 4, although along rib 32a direction flow (arrow E among Fig. 5) to the left and right, but, form because rib 32a spreads all over full Zhou Lianxu, so can not surpass the inwall 24b that rib 32a flows to body wall portion 23.
For example, even in the breach 33a part that is arranged on the cover 30r of dorsal part, owing to rib 32a forms along breach 33a continuously, so water flows down (arrow F) along rib 32a.
Waterproof construction according to above-described connection box, the two layers of wall portion in outside that are made of outer wall 24a and inwall 24b are set on superposed body 20 in user mode, chimeric cover 30f, 30r between outer wall 24a and inwall 24b, simultaneously, so owing to erect at the front end of the wall 32f, the 32r that are provided with on cover 30f, the 30r and rib 32a to be set to improve water resistance between body 20 and cover 30f, the 30r.
In addition, the waterproof construction of connection box of the present invention is not limited to described execution mode, can suitably be out of shape, improve.
For example,, as shown in Figure 1, illustrated on the two sides, front and back of body 20 peristome 21f, 21r are set, covered two peristome 21f, 21r by a pair of cover 30f, 30r at described execution mode.In addition, to only having peristome 21 in the front (or back) of body 20, the structure that is covered this peristome 21 by a cover 30 is suitable for similarly.At this moment, outer wall 24a and inwall 24b are set in the front side of body 20 with extending, form outside inner two layers of wall portion, in the gap 25 between outer wall 24a and inwall 24b the end limit of the wall 32 of chimeric cover 30.
Claims (5)
1. connection box, it has:
Body, this body have and surround the inner space and along body wall portion that first direction extends;
Two layers of wall portion, it is arranged on the body wall portion that is configured in upside in a plurality of body wall portion of described body at least under user mode, has inner and outer wall and be formed with groove between described outer wall and described inwall; Described outer wall is for being configured in the part of the body wall portion of upside at least under user mode in a plurality of body wall portion of described body, described inwall extends continuously and along described first direction from described outer wall;
Cover, this cover have a plurality of chimeric end limit of extending along described first direction, are entrenched in the outside of described inwall and inaccessible described inner space by making described a plurality of chimeric ends limit;
Rib, its leading section that is embedded in the chimeric end limit in the described groove from described a plurality of chimeric ends limit extends continuously and along the second direction perpendicular to described first direction, and the length dimension of described rib is bigger than the water droplet size that forms in described groove;
Described first direction is the chimeric direction of described body and described cover.
2. connection box as claimed in claim 1 is characterized in that, the inner face of the described outer wall of preceding end in contact of described rib.
3. connection box as claimed in claim 1 is characterized in that described outer wall has the length that covers described rib at least.
4. connection box as claimed in claim 1 is characterized in that, the engaging part that at least one the chimeric end checkpost in the described a plurality of chimeric ends limit that is embedded in the described groove is combined in this groove is arranged on the inwall of described two layers of wall portion.
5. connection box as claimed in claim 1 is characterized in that, the length dimension of described rib is more than the 1.5mm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP122386/03 | 2003-04-25 | ||
| JP2003122386A JP4199042B2 (en) | 2003-04-25 | 2003-04-25 | Waterproof structure of electrical junction box |
| JP122386/2003 | 2003-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1551436A CN1551436A (en) | 2004-12-01 |
| CN1551436B true CN1551436B (en) | 2010-10-20 |
Family
ID=33500632
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410038453 Expired - Fee Related CN1551436B (en) | 2003-04-25 | 2004-04-26 | Waterproofing structure for electric junction box |
| CN 200420036468 Expired - Fee Related CN2702496Y (en) | 2003-04-25 | 2004-04-26 | Waterproof structure of electric junction box |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420036468 Expired - Fee Related CN2702496Y (en) | 2003-04-25 | 2004-04-26 | Waterproof structure of electric junction box |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4199042B2 (en) |
| CN (2) | CN1551436B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4199042B2 (en) * | 2003-04-25 | 2008-12-17 | 矢崎総業株式会社 | Waterproof structure of electrical junction box |
| JP4594198B2 (en) * | 2005-09-02 | 2010-12-08 | 株式会社オートネットワーク技術研究所 | Electrical junction box |
| JP4605144B2 (en) * | 2006-11-06 | 2011-01-05 | 住友電装株式会社 | Electrical junction box |
| JP5026860B2 (en) * | 2007-05-28 | 2012-09-19 | 矢崎総業株式会社 | Electrical junction box |
| JP2009112077A (en) * | 2007-10-26 | 2009-05-21 | Sumitomo Wiring Syst Ltd | Electrical junction box to be mounted on vehicle |
| JP5273554B2 (en) * | 2009-06-30 | 2013-08-28 | 住友電装株式会社 | Electrical junction box |
| JP5880882B2 (en) * | 2013-05-07 | 2016-03-09 | 住友電装株式会社 | Electrical junction box |
| JP2014236654A (en) * | 2013-06-05 | 2014-12-15 | 矢崎総業株式会社 | Electric connection box |
| US10687431B2 (en) * | 2015-02-18 | 2020-06-16 | Gvs S.P.A. | Element for improved ventilation of a housing containing an electrical, electronic, mechanical or similar device |
| JP6431016B2 (en) * | 2016-10-12 | 2018-11-28 | 矢崎総業株式会社 | Electrical junction box and wire harness |
| JP6826079B2 (en) * | 2018-08-21 | 2021-02-03 | 矢崎総業株式会社 | Lock structure, electrical junction box and wire harness |
| JP7116027B2 (en) * | 2019-09-13 | 2022-08-09 | 矢崎総業株式会社 | Electrical Junction Box and Wire Harness |
| CN112086874B (en) * | 2020-09-24 | 2022-04-12 | 广东电网有限责任公司 | Flood prevention device for distribution room |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5153380A (en) * | 1991-06-11 | 1992-10-06 | Chang Chia Shine | Wave separator housing structure |
| US5434748A (en) * | 1991-05-29 | 1995-07-18 | Mitsubishi Denki Kabushiki Kaisha | Hermetic electronic equipment with flexible diaphragm, fastened to case by elastic U-shaped ring, for absorbing pressure fluctuations |
| CN2702496Y (en) * | 2003-04-25 | 2005-05-25 | 矢崎总业株式会社 | Waterproof structure of electric junction box |
-
2003
- 2003-04-25 JP JP2003122386A patent/JP4199042B2/en not_active Expired - Fee Related
-
2004
- 2004-04-26 CN CN 200410038453 patent/CN1551436B/en not_active Expired - Fee Related
- 2004-04-26 CN CN 200420036468 patent/CN2702496Y/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5434748A (en) * | 1991-05-29 | 1995-07-18 | Mitsubishi Denki Kabushiki Kaisha | Hermetic electronic equipment with flexible diaphragm, fastened to case by elastic U-shaped ring, for absorbing pressure fluctuations |
| US5153380A (en) * | 1991-06-11 | 1992-10-06 | Chang Chia Shine | Wave separator housing structure |
| CN2702496Y (en) * | 2003-04-25 | 2005-05-25 | 矢崎总业株式会社 | Waterproof structure of electric junction box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN2702496Y (en) | 2005-05-25 |
| JP4199042B2 (en) | 2008-12-17 |
| CN1551436A (en) | 2004-12-01 |
| JP2004328931A (en) | 2004-11-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |