CN111200264B - Electrical Junction Box - Google Patents
Electrical Junction Box Download PDFInfo
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- CN111200264B CN111200264B CN201911133347.2A CN201911133347A CN111200264B CN 111200264 B CN111200264 B CN 111200264B CN 201911133347 A CN201911133347 A CN 201911133347A CN 111200264 B CN111200264 B CN 111200264B
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- electronic component
- case member
- locked
- locking body
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000003780 insertion Methods 0.000 claims abstract description 15
- 230000037431 insertion Effects 0.000 claims abstract description 15
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 39
- 230000004308 accommodation Effects 0.000 claims description 22
- 230000002452 interceptive effect Effects 0.000 claims 1
- 210000000078 claw Anatomy 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Or Junction Boxes (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
持续维持电子元件在容纳室中的保持状态。电气接线箱包括：箱体，具有形成容纳电子元件的容纳室的第一箱体部件和组装在第一箱体部件的第二箱体部件；保持机构，具有设置在第一箱体部件的卡定体和设置在电子元件的被卡定体，并通过使卡定体的卡定部和被卡定体的被卡定部在电子元件对于容纳室的插拔方向卡定而使电子元件保持在容纳室，卡定体具有在电子元件向容纳室的插入过程中被被卡定部推动而挠曲、在电子元件向容纳室的容纳完成的同时解除挠曲、使卡定部相对于被卡定部在电子元件从容纳室的拔出方向侧对置配置的挠性，第二箱体部件具有在与第一箱体部件的组装完成位置将卡定体挠曲量限制为能保持卡定部与被卡定部的对置配置状态范围内的限制体。
The holding state of the electronic components in the accommodating chamber is continuously maintained. The electrical junction box includes: a box body having a first box body part forming an accommodating chamber for accommodating electronic components and a second box body part assembled to the first box body part; a holding mechanism having a card provided in the first box body part The fixed body and the locked body provided in the electronic component, and the electronic component is held by locking the locking portion of the locking body and the locked portion of the locked body in the insertion and extraction direction of the electronic component to the accommodating chamber In the accommodating chamber, the engaging body is pushed by the engaging portion to be deflected during the insertion of the electronic component into the accommodating chamber, and releases the deflection when the accommodating of the electronic component into the accommodating chamber is completed, so that the engaging portion can be deflected relative to the accommodating chamber. The locking portion is arranged so as to be opposed to the side in the extraction direction of the electronic component from the accommodating chamber. A restricting body within the range of the opposed arrangement state of the fixed portion and the locked portion.
Description
Technical Field
The present invention relates to electrical junction boxes.
Background
Conventionally, a vehicle such as an automobile is mounted with an electrical junction box for electrically connecting various devices to be electrically connected, a power supply, and the like. In this electrical junction box, the electronic component is accommodated in an accommodation chamber inside the box body, and the electronic component is held in the accommodation chamber by a holding mechanism (for example, a mechanism that is locked to the mating side by a claw portion or the like). For example, the following patent document 1 has been disclosed for such an electrical junction box. The holding mechanism described in patent document 1 includes: a locking body provided in the case and a locked body provided in the electronic component. The holding mechanism holds the electronic component in the housing chamber by engaging the engaging portion of the engaging body with the engaged portion of the engaged body in a direction in which the electronic component is inserted into and removed from the housing chamber.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2016-040976
Disclosure of Invention
Technical problem to be solved by the invention
In this electrical junction box, electronic components are electrically connected to a load, a power supply, and the like of a vehicle via electric wires and the like. Therefore, in the electrical junction box, in order to maintain the electrical connection state, it is necessary to continuously maintain the holding state of the electronic component in the housing chamber, thereby continuously maintaining the electrical connection state between the electronic component and the electric wire or the like inside the box body.
Accordingly, an object of the present invention is to provide an electrical junction box capable of continuously maintaining a holding state of an electronic component in a housing chamber.
Means for solving the problems
In order to achieve the above object, the present invention includes: an electronic component; a case having: a first case member formed with a housing chamber housing the electronic component; and a second case member assembled to the first case member; and a holding mechanism that has a locking body provided in the first casing member and a locked body provided in the electronic component, and that holds the electronic component in the accommodation chamber by locking a locking portion of the locking body and a locked portion of the locked body to each other in an insertion and extraction direction of the electronic component with respect to the accommodation chamber, the locking body having flexibility as follows: the electronic component mounting apparatus is characterized in that the electronic component mounting apparatus is configured to be capable of being pushed by the engaged portion to be deflected during insertion of the electronic component into the housing chamber, the deflection is released when the housing of the electronic component into the housing chamber is completed, the engaged portion is arranged to face the engaged portion in a direction in which the electronic component is pulled out from the housing chamber, the second housing member has a regulating body, and the regulating body regulates a deflection amount of the engaged body within a range capable of maintaining a facing arrangement state of the engaged portion and the engaged portion at an assembly completion position of the second housing member and the first housing member.
Here, preferably, the first case member has: a plurality of said containment chambers; a first locking body as the locking body that locks the locked body of the electronic component accommodated in one of the two accommodation chambers arranged adjacently; and a second locking body as the locking body for locking the locked body of the electronic component accommodated in the other of the two accommodation chambers adjacently arranged, wherein the first locking body and the second locking body are arranged oppositely with a gap in the adjacent arrangement direction of the two accommodation chambers adjacently arranged and have flexibility capable of performing the deflection toward the gap in the insertion process of each electronic component into the accommodation chamber, the second case member has the limiting body, and at the assembly completion position of the second case member and the first case member, the limiting body is arranged in the gap, limits the deflection amount of the first locking body in a range capable of maintaining the opposite arrangement state of the locking part and the locked part, and limits the deflection amount of the second locking body in a range capable of maintaining the opposite arrangement state of the locking part and the locked part Within the range.
Preferably, the first case member and the second case member have positioning holes, respectively, into which positioning pins are inserted when the first case member and the second case member are assembled with each other, the positioning holes of the first case member are disposed at positions that do not interfere with the deflection of the locking body, and the positioning holes of the second case member are formed in the regulating body.
In addition, it is preferable that the regulating body be fitted into the positioning hole of the first case member at an assembly completion position of the first case member and the second case member.
In addition, it is preferable that the positioning hole of the first case member is provided inside a cylinder, and the cylinder is fitted into the positioning hole of the second case member at an assembly completion position of the first case member and the second case member.
Effects of the invention
In the electrical junction box according to the present invention, even if the engaging body is deflected to such an extent that the opposing arrangement state of the engaging portion and the engaged portion can be released due to an external input or the like, the engaging body can be engaged by the restricting body, and the amount of deflection of the engaging body can be restricted within a range in which the opposing arrangement state of the engaging portion and the engaged portion can be maintained. Therefore, in the electrical junction box, when the first case member and the second case member are assembled, the holding function of holding the electronic component in the housing chamber by the holding mechanism can be continuously maintained.
Drawings
Fig. 1 is an exploded perspective view illustrating an electrical junction box of an embodiment.
Fig. 2 is an exploded perspective view of the electrical junction box of the embodiment viewed from another angle.
Fig. 3 is a plan view showing an electric junction box of the embodiment.
Fig. 4 is a cross-sectional view taken along line X-X of fig. 3.
Fig. 5 is a perspective view showing an electronic component.
Fig. 6 is a perspective view showing the first case member.
Fig. 7 is a perspective view showing the first case member.
Fig. 8 is a perspective view showing a state where electronic components are accommodated with respect to the first casing member.
Fig. 9 is a plan view showing a state where electronic components are accommodated with respect to the first casing member.
Fig. 10 is a cross-sectional view taken along line X-X of fig. 8, which is an enlarged view of a main portion.
Fig. 11 is a sectional view showing a modification of the restricting body.
Description of the symbols
1 electric connection box
10 electronic component
20 case body
20a accommodating chamber
21 first casing part
22 second housing part
25 cylinder (barrel)
25a locating hole
26 limiter
26a locating hole
30 holding mechanism
31 locking body
31A first locking body
31B second locking body
31a locking part
32 locked body
32a is locked part
101 positioning pin
Detailed Description
Hereinafter, an embodiment of an electrical junction box according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.
[ embodiment ]
An embodiment of an electrical junction box according to the present invention will be described with reference to fig. 1 to 11.
The electronic component 10 is, for example, a circuit protection component such as a relay or a fuse, a connector (for example, a connector attached to a terminal of an electric wire), a terminal fitting (for example, a terminal fitting attached to a terminal of an electric wire), or the like. Here, an electronic device such as a circuit board or an electronic control unit (so-called ECU) is considered to be one embodiment of the electronic component 10. The electronic component 10 of this example has: an electronic component main body (not shown); a case 11 accommodating the electronic component main body (fig. 1 to 5); and at least two terminal fittings 12 electrically connected to the electronic component main body (fig. 1, 2, and 5).
When the electronic component 10 is a relay, for example, the electronic component body refers to a circuit component such as a coil that constitutes a circuit of the relay. The case 11 is molded from an insulating material such as synthetic resin. The case 11 of this example has at least one set of oppositely disposed outer walls (a first outer wall 11a, a second outer wall 11b) (fig. 1, 2, and 5). Here, the case 11 is formed in a rectangular parallelepiped, and two of six rectangular and flat plate-like outer walls orthogonally arranged become the first outer wall 11a and the second outer wall 11 b. Two terminal fittings 12 are provided. The two terminal fittings 12 are exposed to the outside of the case 11 from the third outer wall body 11c (fig. 1, 2, and 5), and electrically connected with electrical connection members such as electric wires.
The case 20 is molded from an insulating material such as synthetic resin. The case 20 is a housing case formed by assembling a plurality of divided cases to each other, and houses at least the electronic component 10. The case 20 of this example has: a first case member 21 formed with a housing chamber 20a housing the electronic component 10; and a second case member 22 assembled to the first case member 21. Here, the first case member 21 is formed as a housing member for the electronic component 10, and the second case member 22 is formed as a cover member that covers the first case member 21.
The first case member 21 of this example has a plurality of accommodation chambers 20 a. Here, two housing chambers 20a provided for each electronic component 10 are disposed adjacent to each other (fig. 1, 2, 6, and 7). The first casing member 21 has a bottom wall 21a (fig. 1, 6, and 7) on which two electronic components are placed. The first casing member 21 has first to fourth upright walls 21b to 21e (fig. 1, 6, and 7) upright from the bottom wall 21a for each accommodation chamber 20 a.
The bottom wall body 21a in this example is formed in a substantially rectangular flat plate shape. The first and second vertical walls 21b and 21c are disposed facing each other with a space therebetween. The first and second standing walls 21b, 21c of this example are formed in a substantially rectangular flat plate shape. The first and second vertical walls 21b and 21c in this example are each formed with a part thereof as a locking body 31 described below. The third and fourth vertical walls 21d and 21e are disposed facing each other with a space therebetween. The third vertical wall body 21d of this example is formed in a substantially rectangular flat plate shape, and one of the side portions along the vertical direction rising from the bottom wall body 21a is connected to the side portion of the first vertical wall body 21b, and the other is connected to the side portion of the second vertical wall body 21 c. In contrast, the fourth vertical wall body 21e of this example is cut so as to retain a part of a substantially rectangular flat plate-like wall body. Here, two cutouts are formed in the fourth vertical wall 21e, and the terminal fittings 12 of the electronic component 10 are disposed to face the cutouts in a state where the electronic component 10 is accommodated in the accommodation chamber 20 a.
In the first case member 21 of this example, a rectangular parallelepiped space surrounded by the bottom wall body 21a and the first to fourth vertical wall bodies 21b to 21e is used as the housing chamber 20a (fig. 1, 6, and 7). In the housing chamber 20a, a substantially rectangular opening is formed by the end portions of the first to fourth vertical walls 21b to 21e in the vertical direction standing from the bottom wall 21a, and this opening is used as an insertion port 20a for housing the electronic component 10 in the housing chamber 20a1(FIGS. 1, 6 and 7). In the first case member 21 of this example, the first outer wall 11a of the electronic component 10 in the housed state is disposed to face the first vertical wall 21b, and the second outer wall 11b of the electronic component 10 in the housed state is disposed to face the second vertical wall 21 c.
In the first casing member 21 of this example, a first vertical wall 21b constituting one housing chamber 20a and a second vertical wall 21c constituting the other housing chamber 20a are disposed facing each other with a space therebetween (fig. 1, 6, and 7).
The second casing member 22 is an insertion port 20a for the accommodation chamber 20a1A closed cover member. The second casing member 22 of this example is formed to be opposed from the outside to a second vertical wall 21c constituting one housing chamber 20a, a first vertical wall 21b constituting the other housing chamber 20a, and a third vertical wall 21d provided for each of the housing chambers 20aAnd a box-like shape covering the fourth vertical wall 21e provided for each of the storage chambers 20 a.
The case 20 is provided with a holding mechanism, not shown, for holding the assembled first case member 21 and second case member 22 in this state. As the holding means, for example, a so-called lock mechanism that is engaged with each other by a claw portion or the like may be used so that the first casing member 21 and the second casing member 22 after assembly do not come apart from each other.
Here, a holding mechanism 30 is provided in the electrical junction box 1, and the holding mechanism 30 holds the electronic component 10 accommodated in the accommodation chamber 20a (fig. 1, 2, 4, 6, and 7). The holding mechanisms 30 are provided two by two for each electronic component 10 (each housing chamber 20 a).
The holding mechanism 30 includes: a locking body 31 provided in the first housing member 21, and a locked body 32 provided in the electronic component 10 (fig. 1, 2, and 4). The holding mechanism 30 holds the electronic component 10 in the housing chamber 20a by locking the locking portion 31a of the locking body 31 and the locked portion 32a of the locked body 32 to each other in the insertion and extraction direction of the electronic component 10 with respect to the housing chamber 20a (fig. 4).
The locking portion 31a and the locked portion 32a are formed, for example, by forming at least one of them as a protrusion such as a claw portion and locking the protrusion at the mating side, so that the electronic component 10 is held in the accommodation chamber 20 a. Here, the protruding portion is provided in the electronic component 10. In the electronic component 10, one latched body 32 is provided on each of the first outer wall 11a and the second outer wall 11b disposed to face each other. In the electronic component 10 of this example, the locked body 32 is made to protrude from the outer wall surfaces of the first outer wall 11a and the second outer wall 11b, respectively, so that the locked body 32 is a protruding body and the locked body 32 itself becomes the locked portion 32a (fig. 1, 2, and 5). The respective locked bodies 32 are disposed facing each other in a direction along the facing direction of the first outer wall 11a and the second outer wall 11 b.
The locking body 31 is formed as a member having flexibility as described below. The locking body 31 has the following flexibility: the electronic component 10 can be pushed by the engaged portion 32a (the engaged body 32) and deflected during the insertion into the housing chamber 20a, and the deflection is released at the same time as the completion of the housing of the electronic component 10 into the housing chamber 20a, so that the engaging portion 31a is disposed opposite to the engaged portion 32a (the engaged body 32) on the side of the electronic component 10 in the direction of extraction from the housing chamber 20 a. The locking body 31 is bent toward the side opposite to the accommodation chamber 20a when pushed by the locked portion 32a (locked body 32).
In each of the storage chambers 20a, the locking body 31 is provided for each of the first vertical wall 21b and the second vertical wall 21c which are disposed to face each other (fig. 1, 6, and 7). The locking bodies 31 of the first vertical wall 21b and the second vertical wall 21c are disposed facing each other at a distance from each other in a direction along the facing direction of the first vertical wall 21b and the second vertical wall 21c for each housing chamber 20a (fig. 1, 6, and 7). The locking bodies 31 of the first vertical wall 21b of the one housing chamber 20a and the second vertical wall 21c of the other housing chamber 20a are disposed facing each other with a gap therebetween in the direction in which the two housing chambers 20a disposed adjacent to each other are disposed adjacent to each other (fig. 1, 6, and 7).
Here, the locking body 31 provided on the first vertical wall body 21B of the one housing chamber 20a may be referred to as a first locking body 31A, and the locking body 31 provided on the second vertical wall body 21c of the other housing chamber 20a may be referred to as a second locking body 31B (fig. 1, 6, and 7). The first locking body 31A and the second locking body 31B are bent toward the opposite side (toward the gap) from the accommodation chamber 20a when pushed by the locked portion 32a (locked body 32).
The locking body 31 of this example includes: a locking portion 31 a; and two upright portions 31b that are respectively provided upright from the bottom wall body 21a side toward the upright direction of the first upright wall body 21b (second upright wall body 21c), and the two upright portions 31b are disposed facing each other at a distance in a direction along the plane of the first upright wall body 21b (second upright wall body 21c) in a direction orthogonal to the upright direction (fig. 1, 2, 4, 6, and 7). In the locking body 31, the ends of the two upright portions 31b in the upright direction are connected to each other by the locking portion 31a, and the respective upright portions 31b have flexibility as described above. For example, the locking portion 31a is formed in a rectangular flat plate shape, and the locked portion 32a (locked body 32) is locked to one side portion between the two upright portions 31 b.
The locking portions 31a of the first vertical wall 21b and the second vertical wall 21c are disposed facing each other at a distance from each other in a direction along the facing direction of the first vertical wall 21b and the second vertical wall 21c for each housing chamber 20a (fig. 1, 6, and 7). The locking portions 31A of the first vertical wall body 21B of the one housing chamber 20a and the second vertical wall body 21c of the other housing chamber 20a (the locking portions 31A of the first locking body 31A and the second locking body 31B) are arranged to face each other with a gap in the adjacent arrangement direction of the two housing chambers 20a arranged adjacent to each other (fig. 1, 6, and 7).
In the holding mechanism 30, once the electronic component 10 is inserted from the insertion port 20a1When the insertion is performed, the locked portion 32a (locked body 32) comes into contact with the locking portion 31a of the locking body 31. The engaging portion 31a of each of the first vertical wall body 21b and the second vertical wall body 21c may be provided with an inclined surface on a contact surface with the engaged portion 32a (engaged body 32) for each housing chamber 20 a. The inclined surfaces in the facing arrangement state are formed such that the interval in the facing arrangement direction thereof is gradually directed toward the insertion port 20a1And the side becomes larger.
In the holding mechanism 30, as the electronic component 10 is inserted, the engaged portions 32a (engaged bodies 32) bend the respective upright portions 31b while pushing the engaging portions 31a to the side opposite to the accommodating chamber 20 a. In the holding mechanism 30, when the electronic component 10 is completely accommodated in the accommodating chamber 20a as the electronic component 10 is further inserted, the respective upright portions 31b are released from flexing, and the engaging portions 31a and the engaged portions 32a (engaged bodies 32) are arranged to face each other in the insertion/removal direction of the electronic component 10 with respect to the accommodating chamber 20 a. Here, the locking portion 31a is disposed opposite to the locked portion 32a (locked body 32) on the side of the electronic component 10 in the direction of pulling out the electronic component from the housing chamber 20a (fig. 4).
In the holding mechanism 30, when the electronic component 10 is pulled out from the housing chamber 20a, the respective upright portions 31b are bent in the direction of pushing by the engaged portions 32a (engaged bodies 32) when the electronic component 10 is inserted. In the holding mechanism 30, when the locking portion 31a and the locked portion 32a (locked body 32) are in the opposed arrangement state, the electronic component 10 can be pulled out from the housing chamber 20a by bending the locking body 31 until the opposed arrangement state of the locking portion 31a and the locked portion 32a (locked body 32) is released, and tilting the locking portion 31a and each of the upright portions 31 b.
In this electrical junction box 1, after the electronic components 10 are accommodated in the respective accommodation chambers 20a, the first case member 21 and the second case member 22 are assembled. In the electrical junction box 1, the following tools are used for the assembly work.
The first case member 21 and the second case member 22 have positioning holes 25a, 26a, respectively, into which positioning pins 101 (fig. 1) when they are to be assembled with each other are inserted (fig. 1, 2, and 4). In the electrical junction box 1, for example, the positioning pins 101 are inserted into the positioning holes 25a to determine the position of the first box member 21 on a tool plate (not shown). The positioning pin 101 protrudes from the positioning hole 25 a. In the electrical junction box 1, the electronic components 10 are accommodated in the respective accommodation chambers 20 a. Then, in the electrical junction box 1, the second case member 22 is assembled to the first case member 21 while the positioning pins 101 protruding from the positioning holes 25a are inserted into the positioning holes 26 a.
The thus assembled electrical junction box 1 is mounted on a vehicle body or the like of a vehicle. Therefore, in the electrical junction box 1, external inputs such as a road surface input and vibration of a drive source during traveling act via the vehicle body, and an acceleration/deceleration, a lateral acceleration, and the like during traveling act as external inputs. The external input also acts on the electronic component 10 and the holding mechanism 30. Therefore, the electrical junction box 1 is configured to be able to secure the holding function of the holding mechanism 30 regardless of the presence or absence of an external input.
Specifically, in the electrical junction box 1, when the first and second housing members 21 and 22 are assembled, the holding function of the holding mechanism 30 is maintained by restricting the deflection of the locking body 31 of the holding mechanism 30. In the electrical junction box 1, at the assembly completion position of the first box member 21 and the second box member 22, the amount of deflection of the locking body 31 is limited to a range in which the facing arrangement state of the locking portion 31a and the locked portion 32a (locked body 32) can be maintained. Here, the stopper 26 for performing such regulation is provided in the second casing member 22 (fig. 1, 2, and 4).
The regulating body 26 is provided to regulate the amount of deflection of at least one locking body 31 of the two holding mechanisms 30 provided for each housing chamber 20 a. That is, if the restricting body 26 can maintain the holding function of the holding mechanism 30, only one locking body 31 of the two holding mechanisms 30 may be restricted in the amount of deflection, or both locking bodies 31 of the two holding mechanisms 30 may be provided for each holding mechanism 30 so as to restrict the amount of deflection.
The regulating body 26 is formed as a protruding body protruding toward the second casing member 22 in the assembling direction of the first casing member 21 in the second casing member 22. The regulating body 26 extends, for example, to a position where it is disposed facing the locking portion 31a of the locking body 31 at the assembly completion position of the first casing member 21 and the second casing member 22, or to a position where it is disposed facing the upright portion 31b of the locking body 31 at the assembly completion position. The regulating body 26 is disposed so as to face the locking portion 31a or the upright portion 31b on the side of the tilting direction of the locking portion 31a and the upright portions 31b when the electronic component 10 is removed from the housing chamber 20a when the first casing member 21 and the second casing member 22 are assembled. Therefore, even if the engaging body 31 is deflected to such an extent that the facing arrangement state of the engaging portion 31a and the engaged portion 32a (the engaged body 32) is canceled by an external input or the like, the restricting body 26 can restrict the amount of deflection of the engaging body 31 within a range that can hold the facing arrangement state of the engaging portion 31a and the engaged portion 32a (the engaged body 32) by engaging the engaging portion 31a or the upright portion 31b on the outer wall surface thereof. Therefore, in the electrical junction box 1, when the assembly of the first and second casing members 21 and 22 is completed, the holding function of holding the electronic component 10 in the housing chamber 20a by the holding mechanism 30 can be continuously maintained.
The regulating body 26 is formed, for example, as a cylindrical body having a protruding direction as a cylindrical axis direction. Here, the space inside the cylindrical regulating body 26 is used as the positioning hole 26 a. That is, the positioning hole 26a of the second casing member 22 may be formed in the regulating body 26. Therefore, in the electrical junction box 1, the positioning hole 26a and the regulating body 26 can be shared without separately preparing the regulating body 26, so that downsizing and improvement in productivity can be achieved.
In the case of sharing the positioning hole 26a and the regulating body 26, the positioning hole 25a of the first housing member 21 is also disposed on the side of the tilting direction of the locking portion 31a and the respective upright portions 31b when the electronic component 10 is pulled out from the housing chamber 20 a. Therefore, the positioning hole 25a is disposed at a position not to hinder the deflection of the locking body 31 in the operation, and does not hinder the operation of accommodating the electronic component 10 in the accommodating chamber 20a and the operation of pulling out the electronic component 10 from the accommodating chamber 20 a. For example, the positioning hole 25a is provided inside the cylinder. In the first case member 21 of this example, a cylindrical body 25 is formed, and an inner space of the cylindrical body 25 is a positioning hole 25a (fig. 1, 6, and 7). The cylindrical body 25 may be disposed at a position not in contact with the bent locking body 31. For example, the cylindrical body 25 is disposed so as to enter between the respective upright portions 31b when the locking body 31 is bent.
Here, the regulating body 26 is disposed to face the locking portion 31a, and the locking portion 31a is locked to the outer wall surface of the regulating body 26. Here, the stopper 26 is formed in a cylindrical shape, and the locking portion 31a is locked to the outer peripheral surface thereof.
Here, the deflection amount of the locking body 31 of each of the two adjacent holding mechanisms 30 may be limited by the common limiting body 26 between the two adjacent accommodating chambers 20 a. In this example, the electronic component 10 housed in each housing chamber 20a is maintained in the housed state by arranging the regulating body 26 in the gap between the two adjacent locking bodies 31 (the first locking body 31A and the second locking body 31B) and regulating the amount of deflection of each locking body 31 by the common regulating body 26. Here, the positioning hole 26a is provided in the common regulating body 26.
The second case member 22 of this example has the regulating body 26, and the regulating body 26 is disposed in the gap between the first locking body 31A and the second locking body 31B at the assembly completion position of the second case member 22 and the first case member 21 (fig. 1, 2, and 4). Here, a limiter 26 is provided on the second case member 22. The regulating body 26 is formed so as to be able to regulate the amount of deflection of the first locking body 31A within a range capable of holding the facing arrangement state of the locking portion 31A and the locked portion 32a (locked body 32), and to be able to regulate the amount of deflection of the second locking body 31B within a range capable of holding the facing arrangement state of the locking portion 31A and the locked portion 32a (locked body 32).
When the first casing member 21 and the second casing member 22 are assembled, the regulating body 26 extends between the locking portions 31A of the first locking body 31A and the second locking body 31B to positions facing the locking portions 31A in the protruding direction. That is, when the first casing member 21 and the second casing member 22 are assembled, the stopper 26 is disposed so as to face the respective locking portions 31A of the first locking body 31A and the second locking body 31B on the side of the tilting direction of the first locking body 31A and the second locking body 31B when the electronic components 10 are pulled out from the respective housing chambers 20 a. Therefore, even if the first locking body 31A (second locking body 31B) is deflected to such an extent that the facing arrangement state of the locking portion 31A and the locked portion 32a (locked body 32) is eliminated by an external input or the like, the stopper 26 can lock the locking portion 31A on the outer wall surface thereof, and the amount of deflection of the first locking body 31A (second locking body 31B) can be limited within a range that can hold the facing arrangement state of the locking portion 31A and the locked portion 32a (locked body 32). Therefore, in the electrical junction box 1, when the assembly of the first and second casing members 21 and 22 is completed, the holding function of holding the electronic component 10 in the housing chamber 20a by the holding mechanism 30 can be continuously maintained.
In the electrical junction box 1, when the electronic component 10 is inserted into each of the housing chambers 20a of the first housing member 21, each of the locking bodies 31 is bent while being pushed by the locked portion 32a (locked body 32). At this time, in the first case member 21, since the cylindrical body 25 (positioning hole 25a) is provided at a position not to hinder the first locking body 31A (second locking body 31B) from flexing, the electronic component 10 can be inserted into the housing completion position of the housing chamber 20a, and the locking portion 31A of the first locking body 31A (second locking body 31B) and the locked portion 32a (locked body 32) can be arranged to face each other (fig. 8 to 10).
Then, in the electrical junction box 1, the second case member 22 is assembled to the first case member 21. At this time, in the electrical junction box 1, the regulating body 26 of the second box member 22 is inserted into the gap between the first locking body 31A and the second locking body 31B, and the regulating body 26 is disposed to face the respective locking portions 31A of the first locking body 31A and the second locking body 31B at the assembly completion position of the first box member 21 and the second box member 22 (fig. 4). Therefore, in the electrical junction box 1, even if the first locking body 31A (second locking body 31B) is deflected to such an extent that the facing arrangement state of the locking portion 31A and the locked portion 32a (locked body 32) is released due to an external input or the like, the locking portion 31A of the first locking body 31A (second locking body 31B) can be locked by the outer wall surface of the regulating body 26, and the amount of deflection of the first locking body 31A (second locking body 31B) can be limited within a range that can hold the facing arrangement state of the locking portion 31A of the first locking body 31A (second locking body 31B) and the locked portion 32a (locked body 32). Therefore, in the electrical junction box 1, when the assembly of the first and second casing members 21 and 22 is completed, the holding function of holding the electronic component 10 in the housing chamber 20a by the holding mechanism 30 can be continuously maintained.
On the other hand, in the electrical junction box 1, the second box member 22 is removed from the first box member 21, so that the regulating body 26 can be pulled out from the gap between the first locking body 31A and the second locking body 31B (fig. 8 to 10). In this electrical junction box 1, the amount of deflection of the first locking body 31A (second locking body 31B) required when the electronic component 10 is removed from the housing chamber 20a can be ensured, and the facing arrangement state between the locking portion 31A of the first locking body 31A (second locking body 31B) and the locked portion 32a (locked body 32) can be released. Therefore, in the electrical junction box 1, the electronic component 10 can be pulled out from the housing chamber 20 a.
As described above, in the electrical junction box 1 of the present embodiment, the holding function of the holding mechanism 30 for holding the electronic component 10 in the housing chamber 20a can be continuously maintained by the regulating body 26 when the assembly of the first housing member 21 and the second housing member 22 is completed. In addition, since this effect can be obtained only by assembling the first case member 21 and the second case member 22, the electric junction box 1 can suppress an increase in the number of assembling steps. In particular, in the electrical junction box 1 of the above example, since the positioning hole 26a is provided in the regulating body 26, even if it is not recognized that the regulating body 26 is disposed after the assembly is completed, the assembly work can be completed only by assembling the first case member 21 and the second case member 22. Therefore, the electrical junction box 1 can maintain the holding function by the holding mechanism 30 without lowering the assembling workability.
In the electrical junction box 1 of the present embodiment, the regulating body 26 can be pulled out from the gap between the first locking body 31A and the second locking body 31B only by removing the second box member 22 from the first box member 21. That is, the electrical junction box 1 can pull out the electronic component 10 from the housing chamber 20a only by removing the second housing member 22 from the first housing member 21 and bending the first locking body 31A (the second locking body 31B) and the locking body 31 that is mated therewith. Therefore, the electrical junction box 1 can also suppress a reduction in maintenance workability.
However, in the electrical connection box 1 of the present embodiment, the regulating body 26 may be fitted into the positioning hole 25a of the first box member 21 at the position where the first box member 21 and the second box member 22 are assembled (fig. 11). In contrast, in the electrical junction box 1 of the present embodiment, the cylindrical body 25 may be fitted into the positioning hole 26a of the second box member 22 at the position where the first box member 21 and the second box member 22 are assembled. Accordingly, in the electrical junction box 1, when the first and second casing members 21 and 22 are assembled, the backlash between the first and second casing members 21 and 22 can be suppressed. In this example, the limiter 26 is embedded inside the cylindrical body 25. Here, in consideration of tolerance variations between the first case member 21 and the second case member 22 and assembly variations between the first case member 21 and the second case member 22, the cylindrical body 25 is preferably formed so that the tip in the cylinder axis direction does not contact the regulating body 26. Similarly, the stopper 26 is preferably formed so that the distal end in the cylinder axis direction does not contact the cylindrical body 25 in consideration of tolerance variations between the first casing member 21 and the second casing member 22 and assembly variations between the first casing member 21 and the second casing member 22. In this way, in the electrical junction box 1, when the first box member 21 and the second box member 22 are assembled, the cylindrical body 25 and the regulating body 26 are not caught in the tube axis direction, and therefore, the assembly can be completed.
Claims (4)
1. An electrical junction box, comprising:
an electronic component;
a case having: a first case member formed with a housing chamber housing the electronic component; and a second case member assembled to the first case member; and
a holding mechanism having a locking body provided in the first casing member and a locked body provided in the electronic component, the holding mechanism holding the electronic component in the accommodation chamber by locking a locking portion of the locking body and a locked portion of the locked body with each other in an insertion/extraction direction of the electronic component with respect to the accommodation chamber,
the first case member has: a plurality of said containment chambers; a first locking body as the locking body that locks the locked body of the electronic component accommodated in one of the two accommodation chambers arranged adjacently; and a second locking body as the locking body that locks the locked body of the electronic component accommodated in the other of the two accommodation chambers arranged adjacently,
the first locking body and the second locking body are disposed facing each other with a gap in an adjacent direction of the two adjacent housing chambers, and have flexibility to enable: the electronic components can be pushed by the engaged portions to be deflected toward the gap during insertion of the electronic components into the accommodating chamber, the deflection is released when the electronic components are accommodated in the accommodating chamber, and the engaging portions are arranged to face the engaged portions in a direction in which the electronic components are pulled out from the accommodating chamber,
the second housing member has a regulating body disposed in the gap at an assembly completion position of the second housing member and the first housing member, and the regulating body regulates a deflection amount of the first locking body within a range capable of maintaining an opposed disposition state of the locking portion and the locked portion and regulates a deflection amount of the second locking body within a range capable of maintaining an opposed disposition state of the locking portion and the locked portion.
2. An electrical connection box according to claim 1,
the first case member and the second case member have positioning holes, respectively, into which positioning pins are inserted when the first case member and the second case member are assembled with each other,
the positioning hole of the first case member is disposed at a position not interfering with the deflection of the locking body,
the positioning hole of the second case member is formed in the regulating body.
3. An electrical connection box according to claim 2,
the regulating body is fitted into the positioning hole of the first case member at an assembly completion position of the first case member and the second case member.
4. An electrical connection box according to claim 2,
the positioning hole of the first box body part is arranged in the cylinder body,
the cylinder is fitted into the positioning hole of the second case member at an assembly completion position of the first case member and the second case member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-217199 | 2018-11-20 | ||
| JP2018217199A JP6817272B2 (en) | 2018-11-20 | 2018-11-20 | Electrical junction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111200264A CN111200264A (en) | 2020-05-26 |
| CN111200264B true CN111200264B (en) | 2021-06-04 |
Family
ID=70746945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911133347.2A Active CN111200264B (en) | 2018-11-20 | 2019-11-19 | Electrical Junction Box |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6817272B2 (en) |
| CN (1) | CN111200264B (en) |
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|---|---|---|---|---|
| CN2781588Y (en) * | 2005-02-28 | 2006-05-17 | 金师万企业股份有限公司 | Connector structure |
| KR100874971B1 (en) * | 2007-06-26 | 2008-12-19 | 한국단자공업 주식회사 | Cassette block coupling structure of junction box |
| CN101997216A (en) * | 2009-08-25 | 2011-03-30 | 住友电装株式会社 | Connector |
| CN104505630A (en) * | 2011-02-01 | 2015-04-08 | 广濑电机株式会社 | Electrical Connector |
| CN105375198A (en) * | 2014-08-12 | 2016-03-02 | 矢崎总业株式会社 | Mounting structure of electronic component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0615457Y2 (en) * | 1988-07-15 | 1994-04-20 | 矢崎総業株式会社 | Electrical junction box |
| JP2006311724A (en) * | 2005-04-28 | 2006-11-09 | Yazaki Corp | Electrical junction box |
| JP2009268291A (en) * | 2008-04-28 | 2009-11-12 | Mitsubishi Cable Ind Ltd | Circuit case with terminal |
| CN204704713U (en) * | 2012-09-12 | 2015-10-14 | 松下知识产权经营株式会社 | lighting equipment |
| JP6404258B2 (en) * | 2016-04-26 | 2018-10-10 | 矢崎総業株式会社 | Electrical junction box and wire harness |
-
2018
- 2018-11-20 JP JP2018217199A patent/JP6817272B2/en active Active
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2019
- 2019-11-19 CN CN201911133347.2A patent/CN111200264B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781588Y (en) * | 2005-02-28 | 2006-05-17 | 金师万企业股份有限公司 | Connector structure |
| KR100874971B1 (en) * | 2007-06-26 | 2008-12-19 | 한국단자공업 주식회사 | Cassette block coupling structure of junction box |
| CN101997216A (en) * | 2009-08-25 | 2011-03-30 | 住友电装株式会社 | Connector |
| CN104505630A (en) * | 2011-02-01 | 2015-04-08 | 广濑电机株式会社 | Electrical Connector |
| CN105375198A (en) * | 2014-08-12 | 2016-03-02 | 矢崎总业株式会社 | Mounting structure of electronic component |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020088970A (en) | 2020-06-04 |
| CN111200264A (en) | 2020-05-26 |
| JP6817272B2 (en) | 2021-01-20 |
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