GB2330019A - Electric connection box for vehicle - Google Patents
Electric connection box for vehicle Download PDFInfo
- Publication number
- GB2330019A GB2330019A GB9820953A GB9820953A GB2330019A GB 2330019 A GB2330019 A GB 2330019A GB 9820953 A GB9820953 A GB 9820953A GB 9820953 A GB9820953 A GB 9820953A GB 2330019 A GB2330019 A GB 2330019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- connection box
- subordinate
- notch
- box body
- reinforcement 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
Landscapes
- Connection Or Junction Boxes (AREA)
Abstract
An electric connection box includes a connection box body (20), including a recessed mounting portion (21) and a mounting bracket (22) projecting from the mounting portion (21), and a subordinate connection box body (30) mounted on the mounting portion (21) of the connection box body (20). A reinforcement rib (23) is formed on the mounting bracket (22), and a notch portion (31) is formed in that portion of a bottom surface of the subordinate connection box body (30) opposed to the reinforcement rib (23), and the notch portion has a notch bottom surface (32b) abutted against the reinforcement rib (23). The notch bottom surface (32b) and a notch side surface (33a) of the notch portion (31) are abutted respectively against an upper surface (23a) of the reinforcement rib (23) and one side surface (22b) of the mounting bracket (22). There may optionally be a positioning boss (29) on the rib.
Description
2330019 ELECTRIC CONNECTION BOX This invention relates to an electric
connection box, such as a relay box and a fuse box, having a mounting bracket for mounting on a vehicle or the like.
One known electric connection box of the type described is a relay box 1 shown in Fig. 5. This relay box 1 comprises a main relay box (connection box body) 2, having a recessed mounting portion 3 and a mounting bracket 4 projecting from the mounting portion 3, and a subordinate relay box (subordinate connection box body) 5 mounted on the mounting portion 3 of the main relay box 2.
A plurality of relay-mounting housings 2a are formed in an upper surface of the main relay box 2. The mounting bracket 4 is formed on and projects obliquely upwardly from an upper corner portion of the main relay box 2 disposed at an end portion of the mounting portion 3. Another mounting bracket 6 is formed on and projects from a lower corner portion of the main relay box 2 disposed adjacent to a wire harness -connecting portion of this main relay box. A reinforcement rib 4a, 6a is formed integrally with and projects from one side or face of each of the mounting brackets 4, 6 which are adapted to be fixedly secured to a vehicle. A pair of lock engagement portions 7 and 7 are formed on the mounting portion 3.
A plurality of relay-mounting housings Sa are formed in an upper surf ace of the subordinate relay box 5. A pair of lock retaining portions 8 and 8 are formed respectively on those portions of the subordinate relay box 5 corresponding respectively to the pair of lock engagement portions 7 and 7. Wire harnesses 9A and 9B are connected respectively to the main relay box 2 and the subordinate relay box 5. The main relay box 2 and the subordinate relay box 5 are delivered separately, for example, to a vehicle-assembling line. In this vehicleassembling line, the subordinate relay box 5 is mounted on the mounting portion 3 of the main relay box 2 through the lock engagement portions 7 and the lock retaining portions 8, thereby assembling the relay box 1, and this relay box is fixedly secured to a predetermined portion of the vehicle through the mounting brackets 4 and 6.
A technique analogous to this electric connection box is disclosed in Unexamined Japanese Utility Model Publication No. Hei. 6-48148.
In the above conventional relay box 1, however, the mounting bracket 4 projects obliquely upwardly from the upper corner portion of the main relay box 2 disposed at the end portion of the mounting portion 3, and besides this mounting bracket is reinforced by the reinforcement rib 4a to have a sufficient strength that it will not be damaged or broken, and therefore that corner portion of the subordinate relay box 5, corresponding to the mounting bracket 4, is much notched as at K in Fig. 5, and a space, provided at the subordinate relay box 5, is reduced accordingly. And besides, since the two relay boxes 2 and 5 are connected together, using the lock engagement portions 7 of the main relay box 2 and the lock retaining portions 8 of the subordinate relay box 5 as registration means, the efficiency of the assembling operation is low.
Therefore, the present invention has been made in order to solve the above problems, and an object of the present invention is to provide an electric connection box in which an effective space of a subordinate connection box body can be increased as much as possible, and also the subordinate connection box body can be easily and positively mounted on a connection box body against movement relative thereto.
According to the first aspect of the present invention, there is provided an electric connection box which comprises: a connection box body, including a recessed mounting portion and a mounting bracket projecting from the mounting portion; a subordinate connection box body mounted on the mounting portion of the connection box body; a reinforcement rib formed on the mounting bracket; and a notch portion formed in that portion of a bottom surface of the subordinate connection box body opposed to the reinforcement rib. and the notch portion having a notch bottom surface abutted against the reinforcement rib.
In the electric connection box according to the first aspect, the mounting bracket is reinforced by the reinforcement rib, and therefore is prevented from damage, and besides the strength of retaining of the subordinate connection box body relative to the connection box is increased. Furthermore, since the notch portion is formed in that portion of the bottom surface of the subordinate connection box body opposed to the reinforcement rib of the mounting bracket, an effective space of the subordinate connection box body is increased.
According to the second aspect of the present invention depending on the first aspect, the electric connection box further comprises an electric part which has a small height, and can be mounted at that portion of the subordinate connection box body disposed in registry with the notch portion.
In the electric connection box according to the second aspect, the electric part can be mounted even at that portion of such a subordinate connection box body where the layout of the electric part has been difficult, and therefore the efficiency of mounting of the parts is enhanced.
According to the third aspect of the present invention depending on the first aspect, in the electric connection box, the reinforcement rib is formed on and projects from a lower portion of an inclined side surface of the mounting bracket, and the notch bottom surface and a notch side surface of the notch portion of the subordinate connection box body are abutted respectively against an upper surface of the reinforcement rib and the side surface of the mounting bracket.
In the electric connection box according to the third aspect, the movement of the subordinate connection box body relative to the mounting portion of the connection box body is prevented, and the subordinate connection box body, when mounted on the mounting portion of the connection box body, is prevented from moving in upward, downward, right and left directions.
According to the fourth aspect of the present invention depending on the first aspect, the electric connection box further comprises: a retaining portion for positioning purposes formed on the reinforcement rib; and an engagement portion, in which the retaining portion is engaged, provided at the notch bottom surface of the notch portion of the subordinate connection box body.
In the electric connection box according to the fourth aspect, that portion of the subordinate connection box body, which would otherwise be a dead space, can be utilized effectively, and besides the efficiency of the operation of assembling the connection box body and the subordinate connection box body together is improved.
In the accompanying drawings:- Fig. 1 is a plan view of a first embodiment of an electric connection box of the present invention, showing a condition before it is assembled; Fig. 2 (a) is a plan view of a subordinate connector box body used in the electric connection box; Fig. 2(b) is a front-elevational view of the subordinate connection box body; Fig. 3 is a plan view of a second embodiment of an electric connection box of the present invention, showing a condition before it is assembled; Fig. 4 is a perspective view of important portions of a connection box body and a subordinate connection box body of the electric connection box of Fig. 3, showing a condition before the tow box bodies are assembled together; and Fig. 5 is a plan view of a conventional electric connection box, showing a condition before it is assembled.
The first embodiment of the present invention will now be described with reference to Figs. 1 to 2(b). As shown in Fig. 1, the relay box 10, serving as the electric connection box, comprises a main relay box (connection box body) 20, which is made of a synthetic resin, and has an L-shape when viewed from its top, and includes a recessed mounting portion 21 and a mounting bracket 22 projecting from the mounting portion 21, the subordinate relay box (subordinate connection box body) 30 of the cassette type which is made of a synthetic resin, and is mounted on the mounting portion 21 of the main relay box 20, and a box-shaped waterproof cover 40 which is made of a synthetic resin, and has an open bottom, and covers the main relay box 20 and the subordinate relay box 30. The main relay box 20, beforehand fitted in the waterproof cover 40, and the subordinate relay box 30 are delivered separately, for example, to a vehicle-assembling line, and the two relay boxes are assembled together in this vehicle-assembling line.
As shown in Fig. 1, the mounting portion 21 is defined by a recess which is formed in the rear side of the main relay box 20, and extends from a generally central portion of this rear side to a right upper corner portion (in the drawings) thereof, the recess having a rectangular shape when viewed from its top. The mounting bracket 22 is integrally formed on and projects obliquely upwardly from the upper corner portion of the main relay box 20 disposed at a right end portion of the mounting portion 21. That portion of an upper surface 22a of the mounting bracket 22, disposed close to a proximal end thereof, has a generally triangular shape, and a left side surface (one side surface) 22b of this mounting bracket has a v-shape, and is inclined relative to a right side surface (the other side surface) 22c thereof. A reinforcement rib 23 is formed integrally on and projects horizontally from a lower portion of the inclined left side surface 22b of the mounting bracket 22, and the reinforcement rib 23 has an upper surface 23a of a generally trapezoidal shape, and the reinforcement rib 23 is smaller in thickness than the mounting bracket 22. Another mounting bracket 24 is formed integrally with and projects from a left lower corner portion (in the drawings) of the main relay box 20. A reinforcement rib 24a in the form of a triangular plate is also formed integrally on and projects from one side surface of this mounting bracket 24.
A plurality of relay-mounting housings 25 are formed in a right lower portion (in the drawings) of an upper surface 20a of the main relay box 20. A plurality of terminal fitting-type fusible link-mounting housings 26 are formed in an upper central portion of the upper surface 20a, and also a plurality of terminal fitting-type fusible link-mounting housings 26 are formed in a left portion of the upper surface 20a. A threadedtype fusible link-mounting housing 27 is formed in a left upper portion (in the drawings) of the upper surface 20a of the main relay box 20. The terminal fitting-type fusible link-mounting housings 26 are connected to the threaded-type fusible linkmounting housing 27 by a pair of bus bars 28A and 28B. A wire harness 28C is connected to that portion of the main relay box 20 disposed adjacent to the mounting bracket 24 formed on the left side surface of the main relay box 20.
As shown in Figs. 1, 2(a) and 2(b), a notch portion 31 of a stepped, triangular prism-shape is formed in that portion of a bottom (or lower) surface 30b of the subordinate relay box 30 (that is, a right lower portion in the drawings) opposed to the reinforcement rib 23 of the mounting bracket 22. This notch portion 31 includes a first notch bottom surface 32a of a triangular shape, to which the upper surface 22a of the mounting bracket 22 is opposed, and a second notch bottom surface 32b of a trapezoidal shape against which the upper surface 23a of the reinforcement rib 23 abuts. The notch portion 31 further includes a first notch side surface 33a, against which the inclined left side surface 22b of the mounting bracket 22 abuts, and a second notch side surface 33b to which a side surface 23b of the reinforcement rib 23 is opposed.
A plurality of relay-mounting housings 34 are formed in an upper surface 30a of the subordinate relay box 30. A partmounting housing 36 is formed in that portion of the upper surface 30a of the subordinate relay box 30 disposed in registry with the notch portion 31, and this housing 36 receives an electric part (e.g. a fuse or a connector) 35 smaller in height than relays (not shown) mounted respectively in the relay-mounting housings 34. A wire harness 38 is connected to a left side surface (in the drawings) of the subordinate relay box 30.
In the relay box 10 of this embodiment, when the main relay box 20, fitted in the waterproof cover 40, and the subordinate relay box 30, which have been delivered separately, for example, to the vehicle- assembling line, are to be assembled together in this assembling line, the waterproof cover 40 is removed from the main relay box 20, and then the subordinate relay box 30 of the cassette type is mounted on the mounting portion 21 of the main relay box 20. At this time, the first notch side surface 33a of the notch portion 31 of the subordinate relay box 30 is abutted against the inclined left side surface 22b of the mounting bracket 22 (which is to be fixedly secured to the vehicle), holding the thus mounted subordinate relay box against movement in right, left, forward and backward directions, and also the second notch bottom surface 32b of the notch portion 31 of the subordinate relay box 30 is abutted against the upper surface 23a of the reinforcement rib 23, formed at the lower portion of the left side surface 22b of the mounting bracket 22, thereby holding the thus mounted subordinate relay box against movement in upward downward directions. As a result, the movement of the subordinate relay box 30 relative to the mounting portion 21 of the main relay box 20 is positively prevented.
The reinforcement rib 23 is formed integrally on and projects from the lower portion of the left side surface 22b of the mounting bracket 22, and therefore the mounting bracket 22 is reinforced by the reinforcement rib 23, and hence is prevented from damage, and besides the strength of retaining of the mounted subordinate relay box 30 is increased. The notch portion 31 is formed only in that portion of the bottom surface 30b of the subordinate relay box 30 opposed to the reinforcement rib 23, that is to say, the bottom surface 30b of the subordinate relay box 30 is raised by an amount corresponding to the thickness of the reinforcement rib 23, and therefore the effective space for the layout of the parts, available at the upper surface 30a of the subordinate relay box 30, is larger as compared with the conventional construction, and the electric part 35 (e. g. a fuse or a connector), smaller in height than the relays (not shown). can be mounted at that portion of the upper surface 30a disposed in registry with the notch portion 31 of the subordinate relay body 30. Therefore, in accordance with the required circuits, the parts can be sufficiently mounted on the subordinate relay box 30 of the cassette type in contrast with such a conventional subordinate relay in which the layout of the electric part 35 has been difficult.
The subordinate relay box 30 is mounted on the mounting portion 21 of the main relay box 20, and then the main relay box 20 and the subordinate relay box 30 are covered with the waterproof cover 40, and by doing so, the relay box 10, having excellent waterproof properties, can be assembled. The thus assembled relay box 10 is fixedly secured to a predetermined portion of the vehicle through the mounting brackets 22 and 24. The notch portion 31 is formed only in the bottom surface 30b of the subordinate relay box 30, and therefore after the relay box is fixedly mounted at the predetermined position of the vehicle, water is prevented from moving upwardly from this notch portion, thus preventing the intrusion of the water.
The second embodiment of the present invention will be described with reference to Figs. 3 and 4. As shown in Fig. 3, the relay box 101, serving as the electric connection box of this embodiment, comprises a main relay box (connection box body) 201, which is made of a synthetic resin, and has an Lshape when viewed from its top, and includes a recessed mounting portion 21 and a mounting bracket 22 projecting from the mounting portion 21, a subordinate relay box (subordinate connection box body) 301 of the cassette type which is made of a synthetic resin, and is mounted on the mounting portion 21 of the main relay box 201, and a box-shaped waterproof cover 401 which is made of a synthetic resin, and has an open bottom, and covers the main relay box 201 and the subordinate relay box 301. The second embodiment differs from the first embodiment in that a positioning boss (retaining portion) 29 of a cylindrical shape is formed integrally on and projects from an upper surface 23a of a reinforcement rib 23 formed integrally on and projecting from a lower portion of a left side surface (one side surface) 22b of the mounting bracket 22, and that a hole or slot (engagement portion) 39 for receiving the boss 29 is formed in a second notch bottom surface 32b of a notch portion 31 formed in a bottom surface 30b of the subordinate relay box 30'. The other construction is the same as that of the first embodiment, and therefore identical constituent portions will be designated by identical reference numerals, respectively, and detailed explanation thereof will be omitted.
In the relay box 101 of the second embodiment, effects as achieved by the first embodiment can be attained, and since the hole (slot) 39 for receiving the positioning boss 29 is formed in the second notch bottom surface 32b of the notch portion 31 of the subordinate relay box 30' opposed to this positioning boss 29, a right lower corner portion (in the drawings) of the subordinate relay box 30', which is a dead space in the first embodiment, can be utilized effectively, and besides the efficiency of the operation of assembling the main relay box 20' and the subordinate relay box 30' together is improved. After the assembling operation is effected, the relative movement between the main relay box 20' and the subordinate relay box 301 is prevented more positively.
In the first and second embodiments, the upper surface of the reinforcement rib is abutted against the second notch bottom surface of the notch portion, and the inclined side surface of the mounting bracket is abutted against the first notch side surface of the notch portion. However, the upper surface of the mounting bracket may be abutted against the first notch bottom surface of the notch portion, and the side surface of the reinforcement rib may be abutted against the second notch side surface of the notch portion. Although the electric connection box comprises the relay box, the first and second embodiments may be applied to other electric connection box such as a fuse box and a junction box. Although the retaining portion comprises the positioning boss while the engagement portion is formed by the hole (slot), the retaining portion and the engagement portion may have any other suitable shapes, and for example, the retaining portion may comprise a projection while the engagement portion may be formed by a recess for fitting on this projection.
As described above, according to the first aspect of the present invention, the reinforcement rib is formed on the mounting bracket, and therefore the mounting bracket is reinforced by this reinforcement rib, and therefore is prevented from damage, and besides the strength of retaining of the mounted subordinate connection box body is increased. Furthermore, since the notch portion is formed in that portion of the bottom surface of the subordinate connection box body opposed to the reinforcement rib, an effective space of the subordinate connection box body is increased as compared with the conventional construction.
According to the second aspect of the present invention, the electric part, having a small height, can be mounted at that portion of the subordinate connection box body disposed in registry with the notch portion, and therefore the electric part can be mounted even at that portion of such a subordinate connection box body where the layout of the electric part has been difficult, and therefore the efficiency of mounting of the parts is enhanced.
According to the third aspect of the present invention, the reinforcement rib is formed on and projects from the lower portion of the inclined side surface of the mounting bracket, and the notch bottom surface and the notch side surface of the notch portion of the subordinate connection box body are abutted respectively against the upper surface of the reinforcement rib and the side surface of the mounting bracket. Therefore, the movement of the subordinate connection box body relative to the mounting portion of the connection box body is prevented, and the subordinate connection box body, when mounted on the mounting portion of the connection box body, is prevented from moving in upward, downward, right and left directions.
According to the fourth aspect of the present invention, the retaining portion for positioning purposes is formed on the reinforcement rib, and the engagement portion, in which the retaining portion is engaged, is provided at the notch bottom surface of the notch portion of the subordinate connection box body. Therefore, that portion of the subordinate connection box body, which would otherwise be a dead space, can be utilized effectively, and besides the efficiency of the operation of assembling the connection box body and the subordinate connection box body together is improved.
Claims (3)
1. An electric connection box, comprising:
a connection box body, including a recessed mounting portion and a mounting bracket projecting from the mounting portion; subordinate connection box body mounted on the mounting portion of the connection box body; reinforcement rib formed on the mounting bracket; and notch portion formed in that portion of a bottom surface of the subordinate connection box body opposed to the reinforcement rib, and the notch portion having a notch bottom surface abutted against the reinforcement rib.
2. The electric connection box of claim 1, further comprising an electric part which has a small height, and can be mounted at that portion of the subordinate connection box body disposed in registry with the notch portion.
3. The electric connection box of claim 1, in which the reinforcement rib is formed on and projects from a lower portion of an inclined side surface of the mounting bracket, and the notch bottom surface and a notch side surface of the notch portion of the subordinate connection box body are abutted respectively against an upper surface of the reinforcement rib and the side surface of the mounting bracket.
comprising a retaining portion for positioning purposes formed on the reinforcement rib; and an engagement portion, in which the retaining portion is engaged, provided at the notch bottom surface of the notch portion of the subordinate connection box body.
The electric connection box of claim 1, further 5. An electric connection box substantially as described with reference to figures 1 to 4 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26885097A JP3936444B2 (en) | 1997-10-01 | 1997-10-01 | Electrical junction box |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9820953D0 GB9820953D0 (en) | 1998-11-18 |
| GB2330019A true GB2330019A (en) | 1999-04-07 |
| GB2330019B GB2330019B (en) | 2000-06-07 |
Family
ID=17464142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9820953A Expired - Fee Related GB2330019B (en) | 1997-10-01 | 1998-09-25 | Electric connection box |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3936444B2 (en) |
| DE (1) | DE19845313B4 (en) |
| GB (1) | GB2330019B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963317A (en) * | 2012-11-28 | 2013-03-13 | 芜湖市顺昌汽车配件有限公司 | Mounting bracket for relay box |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003125516A (en) * | 2001-10-10 | 2003-04-25 | Sumitomo Wiring Syst Ltd | Relay box for automobile |
| JP5792000B2 (en) * | 2011-09-01 | 2015-10-07 | 矢崎総業株式会社 | Electrical junction box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648148U (en) * | 1992-12-01 | 1994-06-28 | 矢崎総業株式会社 | Electrical junction box |
-
1997
- 1997-10-01 JP JP26885097A patent/JP3936444B2/en not_active Expired - Fee Related
-
1998
- 1998-09-25 GB GB9820953A patent/GB2330019B/en not_active Expired - Fee Related
- 1998-10-01 DE DE1998145313 patent/DE19845313B4/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963317A (en) * | 2012-11-28 | 2013-03-13 | 芜湖市顺昌汽车配件有限公司 | Mounting bracket for relay box |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11113138A (en) | 1999-04-23 |
| GB2330019B (en) | 2000-06-07 |
| JP3936444B2 (en) | 2007-06-27 |
| GB9820953D0 (en) | 1998-11-18 |
| DE19845313B4 (en) | 2005-04-28 |
| DE19845313A1 (en) | 1999-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20160925 |