JP2010029011A - Electric joint box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric joint box which copes with a change in the specification of a cassette component by the use of the same structure and improves the degree of freedom in determining the direction of inserting a cassette structure component. <P>SOLUTION: A component insertion unit 16 of the electric joint box 10 in which the cassette structure component 81 can be inserted is a hole so formed as to penetrate in a direction A1 of inserting the cassette structure component 81. The inner wall 18 of the component insertion unit 16 is provided with a first locking member 22 that locks the first cassette structure component 81 inserted from one end of the hole in the first insertion direction A1 and with a second locking member 25 that locks a cassette structure component inserted from the other end of the hole in a second insertion direction. The first cassette structure component 81 is inserted in the component insertion unit 16 according to the selected first insertion direction A1 or second insertion direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electrical junction box such as a relay box, a fuse box, an electronic control unit box, etc. used for a vehicle such as an automobile, and more particularly, to insert a cassette structure component such as a cassette-type electrical component unit. It relates to an electrical junction box.

  As shown in FIG. 18, cassette structure parts such as various blocks 203 and boxes 202 are often inserted into an electrical connection box 200 mounted on a vehicle (see, for example, Patent Document 1). In the case of this type of electrical junction box, the insertion direction is usually determined by the cassette structural components. For example, a relay block or the like that requires maintenance is inserted into the electrical junction box from above so that it can be easily attached and detached during maintenance. In addition, it is necessary to make it easier to attach the mating parts (relays, etc.) so that the connector mating surface faces upward, and the connector unit etc. to which the wires are connected is inserted from the side where the wires are not connected. Since it is easy to do, it inserts in an electric junction box from the lower side.

  There are two types of electrical junction boxes, one for inserting cassette structural parts from the top and the other for inserting from the bottom. Select either one according to the cassette structural parts to be used. It is used as. In this case, as shown in FIG. 19, a structure for fixing the cassette structural component is used in an electrical junction box in which the cassette structural component is inserted from above and an electrical junction box in which the cassette structural component is inserted from below. Is also different.

  That is, as shown in FIG. 19A, in the case of the component 210 to be inserted from above, the component 210 is provided with a lance 212 that is a flexible piece facing upward, and the electrical connection box 214 has an upward direction of the lance 212. A locking portion 216 that prevents movement is provided. As shown in FIG. 19B, in the case of a component 220 to be inserted from below, the component 220 is provided with a lance 222 facing downward, and the electrical connection box 224 has a function of preventing the lance 222 from moving downward. A stop 226 is provided. In this way, an electrical junction box dedicated to components to be inserted from above and an electrical junction box dedicated to components to be inserted from below have been prepared separately.

Japanese Patent Laid-Open No. 10-201047

However, when there are multiple specifications for the cassette structure parts, it is necessary to prepare multiple electrical junction boxes in order to satisfy the specifications of both the parts inserted from above and the parts inserted from below. Further, the electrical junction box needs to be provided with respective insertion portions for components to be inserted from above and components to be inserted from below, and there is a problem that the electrical junction box is enlarged. In addition, when the cassette structure parts that were previously inserted from the top are changed to be inserted from the bottom, the fixing structure of the cassette structure parts in the electrical junction box must also be changed. It was necessary to make a connection box, which caused the cost to increase.
In addition, since the electrical junction box is made every time the specification is changed, the types of electrical junction boxes are increased, and it is difficult to manage the electrical junction box.

  Furthermore, since the electrical junction box may be mounted with the cassette structure parts inserted in the horizontal direction depending on the space distribution of the vehicle, for example, in the engine room, etc., the insertion direction of each cassette structure part can be freely set. It is desired to increase the degree.

  An object of the present invention is to solve the above-mentioned problems, and can deal with a plurality of types of parts having different insertion directions and can be configured in a small size, and the degree of freedom in the insertion direction of cassette structure parts with a simple configuration. It is an object of the present invention to provide an electric junction box that can be easily managed at low cost.

The above object of the present invention is achieved by the following configurations.
(1) An electrical junction box having an electrical junction box body in which a component insertion portion capable of inserting either one of the first cassette structural component and the second cassette structural component is formed,
The component insertion portion is formed with a through hole defined by an inner wall thereof and penetrating the electric junction box body,
The first cassette structural component can be inserted into the through hole from the opening on one end of the openings at both ends, and the second cassette structural component can be inserted from the opening on the other end of the openings on both ends. Yes,
The inner wall of the component insertion portion has a first locking portion for locking the first cassette structure component inserted into the through hole from the opening on the one end side, and the opening on the other end side. An electrical junction box, comprising: a second locking portion for locking the second cassette structural component inserted into the through hole.

(2) The first locking portion and the second locking portion are integrally formed as an integrated locking portion on the inner wall of the component insertion portion, and are contradictory to the integrated locking portion. The electrical junction box according to (1), wherein the electrical junction box is formed on a side.

(3) The first locking portion and the second locking portion are formed apart on the inner wall of the component insertion portion, and the insertion direction of the first cassette structural component into the through hole In addition, the electrical junction box according to (1) above, which is not on the same straight line parallel to the insertion direction of the second cassette structural component into the through hole.

(4) A stopper for preventing any one of the first cassette structure component and the second cassette structure component inserted into the component insertion portion from slipping forward in the insertion direction to the through hole. Is provided on the inner wall of the component insertion part, The electrical junction box according to any one of the above (1) to (3).

(5) The second locking member has the stopper for the first cassette structural component, and the first locking member has the stopper for the second cassette structural component. The electrical junction box according to (4).

  According to the electrical connection box having the configuration of (1) above, a through hole penetrating the electrical connection box main body is formed in the component insertion portion, and the cassette structural component can be inserted into the through hole from opposite directions. it can. And since the latching member which latches the cassette structure component inserted from each direction is provided in the component insertion part, a cassette structure component does not come out of an electrical junction box. Thereby, a cassette structure component can be inserted in the electrical junction box from a direction with good work efficiency. In addition, it is possible to cope with multiple specifications of cassette structure parts by using an electrical junction box having the same structure, so that the electrical junction box can be reduced in size, and the burden of parts management and cost reduction can be reduced. Can do. And the freedom degree of the insertion direction of a cassette structure component can be raised.

  According to the electrical junction box having the configuration of (2), the first locking member and the second locking member are integrally formed as an integrated locking portion, and the integrated locking portion Since it is formed on the opposite side, the configuration of the electrical junction box can be simplified.

  According to the electrical junction box having the configuration of (3), the first locking member and the second locking member are formed apart on the inner wall of the component insertion portion, and the first locking member Since the cassette structural component is not on the same straight line parallel to the insertion direction of the cassette structural component into the through-hole and the insertion direction of the second cassette structural component into the through-hole, each locking member is associated with each insertion direction. It can function as a stop member.

  According to the electrical junction box having the configuration of the above (4), any one of the first cassette structural component and the second cassette structural component inserted into the component insertion portion is connected to the through hole. Since a stopper that prevents the front part from slipping out in the insertion direction is provided on the inner wall of the part insertion part, the cassette structural part does not come out in the insertion direction and is securely fixed to the part insertion part. .

  According to the electrical junction box having the configuration of (5), the second locking member has the stopper for the first cassette structural component, and the first locking member is the second cassette. It has the said stopper for structural components. That is, when the cassette structural component is inserted from the first direction, the first locking projection locks the cassette structural component, and the second locking projection contacts the cassette structural component as a stopper. Further, when the cassette structural component is inserted from the second direction, the second locking projection locks the cassette structural component, and the first locking projection comes into contact with the cassette structural component as a stopper. Thereby, the electrical connection box of the same structure can be used to increase the degree of freedom of the insertion direction of different cassette structural parts having the same fixing structure, and the insertion state can be reliably maintained.

  According to the present invention, in an electrical junction box having a cassette structure component insertion portion capable of inserting a cassette structure component into the junction box body, it is possible to insert different cassette structure components in the same structure from opposite directions, The electric junction box can be reduced in size, and can correspond to a plurality of parts having different insertion directions. Moreover, the freedom degree of the insertion direction of cassette structure components can be raised with simple structure. In addition, since the electrical junction box can be used in common for different types of cassette structural parts, the number of types of electrical junction boxes does not increase. As a result, the cost does not increase and management is easy.

  Hereinafter, a plurality of preferred embodiments according to the present invention will be described in detail with reference to the drawings.

(First embodiment)
1 to 12 show a first embodiment of an electrical junction box according to the present invention, and FIG. 1 shows a case where a first cassette structural component of the first embodiment of the electrical junction box according to the present invention is inserted. FIG. 2 is a partially broken perspective view of the cassette structure component insertion portion of the electrical junction box of FIG. 1, and FIG. 3 (A) is from above the cassette structure component insertion portion of FIG. FIG. 3 (B) is a plan view seen from below the cassette structural component insertion portion of FIG. 2, and FIG. 4 is an upper view of the first cassette structural component before insertion into the electrical junction box of FIG. 5A is a cross-sectional view around the first cassette structural component when the first cassette structural component of FIG. 1 is inserted into the electrical junction box, and FIG. 5B is FIG. FIG. 6 is a sectional view around the first cassette structural component after the first cassette structural component is inserted into the electrical junction box, and FIG. Plan view after insertion cassette structure parts, FIG. 7 is a bottom view of FIG.

  8 is a perspective view seen from obliquely below when the second cassette structural component is inserted into the electrical junction box of FIG. 1, and FIG. 9 is a second cassette structural component to the electrical junction box of FIG. FIG. 10A is a cross-sectional view of the second cassette structure component of FIG. 8 when it is inserted into the electrical junction box, and FIG. 10B is the first view of FIG. FIG. 11 is a sectional view around the second cassette structure part after the cassette structure part of FIG. 2 is inserted into the electrical junction box, and FIG. 11 is a second view after the second cassette structure part is inserted into the electrical junction box of FIG. FIG. 12 is a bottom view of FIG. 11.

  The electrical junction box 10 according to the first embodiment of the present invention has four side plates 12, 13, 14, and 15, and a cassette structure component is inserted into a part of the side plates 12, 13, 14, and 15 inside. And a junction box body 11 having a plurality of electrical component insertion portions 17 formed in other portions inside the side plates 12, 13, 14, 15. The first cassette structural component 81 is inserted along the first direction A1, and the second cassette structural component 82 is inserted along the second direction A2 of the cassette structural component insertion portion 16. In the following description, the case where the first cassette structural component 81 is inserted is described with reference to FIGS. 1 to 7, and the second cassette structural component 82 is inserted with reference to FIGS. 8 to 12. The case will be described.

  As shown in FIG. 1, the cassette structural component insertion portion 16 is formed so as to penetrate vertically in FIG. 1 and is surrounded by four inner plates 18, 19, 20, and 21. The cassette structural component insertion portion 16 has an upper front opening and a lower front opening formed in the same shape.

  And the latching protrusion 22 as an integrated latching | locking part and a pair of guide parts 23 and 23 are formed in the inner side plates 18 and 20 which the cassette structure component insertion part 16 opposes, respectively.

  The first cassette structural component 81 is a relay unit and incorporates a plurality of relays (not shown) in a relay case 83. The outer plates 84 and 84 of the relay case 83 corresponding to the opposed inner plates 18 and 20 of the cassette structural component insertion portion 16 have flexible locking pieces 85 and a pair of guide portion receivers 86 and 86. .

  The flexible locking piece 85 is a flexible deformation member having insertion directivity along the first direction A1. The guide portion receivers 86, 86 are arranged in parallel to the hole direction of the cassette structure component insertion portion 16 at positions separated from each other by a predetermined distance on both sides of the flexible locking piece 85. It is formed in an L shape in cross-sectional view that is bent so as to face each other.

  As shown in FIGS. 2, 3A, and 3B, the locking protrusion 22 is formed in a polygonal shape in cross section and protrudes from the inner plate 18 (20) toward the inside of the hole. . The locking projection 22 has a first locking portion 24 for a cassette structural component 82 to be described later, which is inserted from below into the upper side of the cassette structural component inserting portion 16 in FIG. A second locking portion 25 for the cassette structural component 81 inserted from above is provided on the lower side of the insertion portion 16 in FIG.

  The guide parts 23, 23 are arranged in parallel to the hole direction of the cassette structure component insertion part 16 at positions separated from each other by a predetermined distance on both sides of the locking projection 22. The guide portions 23 and 23 are plate members having a T-shape in cross-section, and have inner guide grooves 26 and 26 on the inner side of the I-shaped portion at the center of the T-shape, and outer guide grooves 27 and 27 on the outer sides, respectively. Have

  First stoppers 28 and 28 are formed at the upper ends of the inner guide grooves 26 and 26, respectively, and the outer guide grooves 27 and 27 are formed at the lower ends of the outer guide grooves 27 and 27, respectively. Second stoppers 29 and 29 are formed to close 27 and 27, respectively.

  That is, the outer guide grooves 27 and 27 are opened at the upper side in FIG. 2 of the cassette structure component inserting portion 16 and closed at the lower side in FIG. 2 by the second stoppers 29 and 29. The inner guide grooves 26, 26 are opened at the lower side in FIG. 2 of the cassette structure component insertion portion 16, and the upper sides in FIG. 2 are closed by the first stoppers 28, 28.

  Next, with reference to FIGS. 4-7, the insertion procedure of the 1st cassette structure component 81 to the cassette structure component insertion part 16 is demonstrated.

  As shown in FIG. 4, first, the first cassette structure part 81 is arranged above the cassette structure part insertion part 16, and the guide part receivers 86, 86 of the first cassette structure part 81 are inserted into the cassette structure part. The first cassette structural component 81 is advanced toward the cassette structural component insertion portion 16 along the first direction A1 so as to coincide with the guide portions 23, 23 of the portion 16.

  As shown in FIG. 5 (A), the first cassette structural component 81 that advances toward the cassette structural component insertion portion 16 along the first direction A1 includes guide portions 86, 86 as guide portions 23, 23, the flexible locking pieces 85 are brought into contact with the locking protrusions 22 respectively. At this time, since the guide portion receivers 86 and 86 are inserted into the outer guide grooves 27 and 27 of the guide portions 23 and 23, respectively, the first cassette structural component 81 is supported by the outer guide grooves 27 and 27. Thus, the posture can be maintained without causing an inclination during insertion.

  As shown in FIG. 5B, the first cassette structural component 81 inserted into the cassette structural component insertion portion 16 advances over the locking projection 22 by flexing the flexible locking piece 85. Then, the flexible locking piece 85 is locked to the second locking portion 25 of the locking projection 22.

  At the same time, the first cassette structural component 81 in which the guide portion receivers 86, 86 are inserted into the outer guide grooves 27, 27 of the guide portions 23, 23, respectively, has the guide portion receivers 86, 86 in the second stoppers 29, 29. Abutted. Here, when the flexible locking piece 85 gets over the locking projection 22, there may be slight play between the guide portion receivers 86 and 86 and the second stoppers 29 and 29.

  As shown in FIGS. 6 and 7, the first cassette structural component 81 that has advanced to the cassette structural component insertion portion 16 along the first direction A <b> 1 includes the flexible locking piece 85 of the locking projection 22. By being locked by the second locking portion 25 and the guide portion receivers 86 and 86 being brought into contact with the second stoppers 29 and 29, respectively, they are prevented from coming off and the insertion is completed.

  The first cassette structural component 81 electrically connects an internal circuit to a circuit in the electrical junction box 10 via a connector (not shown) at the cassette structural component insertion portion 16.

  As shown in FIG. 8, each of the second cassette structural parts 82 is a cassette unit for electrically connecting a fuse (not shown), a connector with a built-in terminal, a single relay, and the like. A plurality of terminals are accommodated, and electric wires 88 electrically connected to the plurality of terminals respectively extend downward. And the outer side plates 89 and 89 of the cassette case 87 corresponding to the opposing inner plates 18 and 20 of the cassette structural component insertion portion 16 have flexible locking pieces 90 and a pair of guide portion receivers 91 and 91. .

  The flexible locking piece 90 is an elastic member having insertion directivity along the second direction A2. The guide portion receivers 91 and 91 are arranged in parallel to the hole direction of the cassette structure component insertion portion 16 at positions separated from each other by a predetermined distance on both sides of the flexible locking piece 90. It is formed in an L shape in sectional view bent outward.

  Next, with reference to FIGS. 9-12, the insertion procedure of the 2nd cassette structure component 82 to the cassette structure component insertion part 16 is demonstrated.

  As shown in FIG. 9, first, the second cassette structural component 82 is disposed below the cassette structural component insertion portion 16, and the guide portion receivers 91, 91 of the second cassette structural component 82 are inserted into the cassette structural component. The second cassette structural component 82 is advanced toward the cassette structural component insertion portion 16 along the second direction A2 so as to coincide with the guide portions 23, 23 of the portion 16.

  As shown in FIG. 10 (A), the second cassette structural component 82 that advances toward the cassette structural component insertion portion 16 along the second direction A2 includes guide portion receivers 91, 91 as guide portions 23, 23, the flexible locking pieces 90 are brought into contact with the locking protrusions 22 respectively. At this time, since the guide portion receivers 86 and 86 are respectively inserted into the inner guide grooves 26 and 26 of the guide portions 23 and 23, the second cassette structural component 82 is supported by the inner guide grooves 26 and 26. Thus, the posture can be maintained without causing an inclination during insertion.

  As shown in FIG. 10B, the second cassette structural component 82 inserted into the cassette structural component insertion portion 16 advances over the locking projection 22 by flexing the flexible locking piece 90. Then, the flexible locking piece 90 is locked to the first locking portion 24 of the locking protrusion 22.

  At the same time, the second cassette structure part 82 in which the guide portion receivers 91 and 91 are inserted into the inner guide grooves 26 and 26 of the guide portions 23 and 23, respectively, is connected to the first stoppers 28 and 28. Abutted. Here, when the flexible locking piece 90 gets over the locking protrusion 22, there may be slight play between the guide portion receivers 91, 91 and the first stoppers 28, 28.

  As shown in FIGS. 11 and 12, the second cassette structural component 82 that has advanced from the second direction A <b> 2 to the cassette structural component insertion portion 16 has the flexible locking piece 90 of the first locking projection 22. And the guide portion receivers 91 and 91 are brought into contact with the first stoppers 28 and 28, respectively.

  The second cassette structural component 82 electrically connects the electric wire 88 to the circuit in the electric junction box 10 and also has a connector or a single relay with a built-in auto fuse or terminal (not shown) along the first direction A1. Etc. are electrically connected.

  As described above, according to the electrical junction box 10 of the first embodiment, the locking projection 22 of the cassette structure component inserting portion 16 is inserted along the first direction A1. By locking both the flexible locking pieces 85 and 90 of the component 81 and the second cassette structure component 82 inserted along the second direction A2, it can be used for insertion along both directions. Thereby, it is possible to cope with the specification change of the cassette structure parts using the electrical junction box 10 having the same structure, the electrical junction box 10 can be miniaturized, and the burden and cost of parts management can be reduced. And the freedom degree of the insertion direction of the 1st cassette structure component 81 and the 2nd cassette structure component 82 can be raised.

  Further, according to the electrical junction box 10 of the first embodiment, the guide portion 23 is inserted by inserting the first cassette structural component 81 or the second cassette structural component 82 from the first direction A1 and the second direction A2. , 23 support the guide portion receivers 86, 86, 91, 91, respectively, so that the cassette structural parts 81, 82 do not fall down and can be securely inserted. Further, when the flexible locking piece 85 is locked to the second locking portion 25 in accordance with the insertion of the first cassette structural component 81 along the first direction A1, the second stopper 29 is provided. , 29 abuts against the guide portion receivers 86, 86, the flexible locking piece 85 in the locked state can be held so as not to come off and a reliable locked state can be created. Similarly, when the flexible locking piece 90 is locked to the first locking portion 24 due to the insertion of the second cassette structural component 82 along the second direction A2, the first stopper By abutting the guide portions 86 and 86 on the guide portions 86 and 86, the flexible locking piece 90 in the locked state can be held so as not to come off and a reliable locked state can be created.

(Second Embodiment)
Next, with reference to FIGS. 13-17, 2nd Embodiment of the electrical-connection box based on this invention is described. FIGS. 13 to 17 show a second embodiment of the electrical junction box according to the present invention, and FIG. 13 shows the insertion of the first cassette structural component of the second embodiment of the electrical junction box according to the present invention. FIG. 14 is a partially broken perspective view of the cassette structure component insertion portion of the electric junction box of FIG. 13, and FIG. 15 is a first cassette to the cassette structure component insertion portion of FIG. The perspective view containing the principal part cross section of the cassette structural component insertion part after insertion of a structural component, FIG. 16 is the time of inserting the 2nd cassette structural component of 2nd Embodiment of the electrical-connection box based on this invention. FIG. 17 is a perspective view including a cross-section of the main part of the cassette structural component insertion portion after the second cassette structural component is inserted into the cassette structural component insertion portion of FIG. 13.

  Note that, in the following second embodiment, the same or equivalent components in the drawing are simplified or described for the same components or functionally similar components as those in the first embodiment described above. Omitted.

  The electrical junction box 50 according to the second embodiment of the present invention inserts the third cassette structural component 92 along the first direction A1 of the cassette structural component insertion portion 16, and the cassette structural component insertion portion 16. The fourth cassette structural part 93 is inserted along the second direction A2. In the following description, the case where the third cassette structural component 92 is inserted is described with reference to FIGS. 13 to 15, and the fourth cassette structural component 93 is inserted with reference to FIGS. 16 and 17. The case will be described.

  As shown in FIG. 13 and FIG. 14, the electrical junction box 50 according to the second embodiment of the present invention has the cassette structural component insertion portion 16 mounted on the opposing inner plates 18 and 20 of the cassette structural component insertion portion 16. A first locking projection 51 and a second locking projection 52 are provided at positions alternately with respect to the hole direction. That is, the locking protrusion 52 is not located on the same straight line parallel to the first and second directions A1 and A2.

  The first locking protrusion 51 is disposed near the upper opening on the side wall 18 of the cassette structure component insertion portion 16 and has an inclined surface 53 on the upper side.

  The second locking projection 52 is a side portion laterally separated from the first locking projection 52 by a predetermined distance on the side wall 18 of the cassette structural component insertion portion 16, and the first locking projection 52 It is arranged closer to the lower opening than the locking projection 51 and has an inclined surface 54 on the lower side.

  The third cassette structural component 92 is a relay unit similar to the first cassette structural component 81 described above, and the outer plate of the relay case 94 corresponding to the opposed inner plates 18 and 20 of the cassette structural component insertion portion 16. 95, 95 have a flexible locking piece 96 and a pair of guide portion receivers 97, 97.

  The flexible locking piece 96 is a flexible deformable member having insertion directivity along the first direction A1. The guide portion receivers 97, 97 are arranged in parallel to the hole direction of the cassette structure component insertion portion 16 at positions separated from each other by a predetermined distance on both sides of the flexible locking piece 96. Is formed.

  Next, with reference to FIG. 15 including FIG. 13, a procedure for inserting the third cassette structural component 92 into the cassette structural component insertion portion 16 will be described.

  In the third cassette structure component 92 that proceeds toward the cassette structure component insertion portion 16 along the first direction A1, the flexible locking piece 96 rides on the inclined surface 53 of the first locking projection 51. Later, the first locking projection 51 is locked, and at the same time, one of the guide portion receivers 97, 97 is brought into contact with the second locking projection 52.

  As a result, the third cassette structure component 92 that has advanced to the cassette structure component insertion portion 16 along the first direction A1 has the flexible locking piece 96 locked to the first locking projection 51, In addition, one guide portion receiver 97 is brought into contact with the second locking projection 52, so that it is prevented from coming off and insertion is completed. Here, when the flexible locking piece 96 gets over the first locking projection 51, there may be slight play between the guide portion receivers 97, 97 and the second locking projection 52.

  As shown in FIG. 16, the fourth cassette structure component 93 is a cassette unit similar to the above-described second cassette structure component 82, and corresponds to the opposed inner plates 18 and 20 of the cassette structure component insertion portion 16. A flexible locking piece 100 and a pair of guide portion receivers 101 and 101 are provided on the outer plates 99 and 99 of the cassette case 98 to be performed.

  The flexible locking piece 100 is an elastic member having insertion directivity along the second direction A2. The guide portion receivers 101 and 101 are arranged in parallel to the hole direction of the cassette structure component insertion portion 16 at positions separated from each other by a predetermined distance on both sides of the flexible locking piece 100. Is formed.

  Next, with reference to FIG. 17 including FIG. 16, a procedure for inserting the fourth cassette structure component 93 into the cassette structure component insertion portion 16 will be described.

  The fourth cassette structure component 93 that travels toward the cassette structure component insertion portion 16 along the second direction A2 rides the flexible locking piece 100 on the inclined surface 54 of the second locking projection 52. Later, it is locked by the second locking protrusion 52, and at the same time, one of the guide portion receivers 101, 101 is brought into contact with the first locking protrusion 51.

  As a result, the fourth cassette structural component 93 that has advanced to the cassette structural component insertion portion 16 along the second direction A2 is engaged with the flexible locking piece 100 by the second locking projection 52, In addition, when one guide portion receiver 101 is brought into contact with the first locking projection 51, it is prevented from coming off and insertion is completed. Here, when the flexible locking piece 100 gets over the second locking projection 52, there may be slight play between the guide portion receivers 97, 97 and the first locking projection 51.

  According to the electrical connection box 50 of the second embodiment, the first locking protrusion 51 and the second locking protrusion 52 have the same structure with respect to the insertion direction, and the first and second directions A1. , A2 function as a locking means and a stopper, respectively, at the time of component insertion along A2. That is, the first locking projection 51 is locked to the flexible locking piece 96 of the third cassette structural part 92 by the insertion of the third cassette structural part 92 along the first direction A1, and the second The locking projection 52 is brought into contact with one guide portion receiver 97 of the third cassette structural component 92.

  Further, the second locking protrusion 52 is locked to the flexible locking piece 100 of the fourth cassette structure part 93 by the insertion of the fourth cassette structure part 93 along the second direction A2, and the first cassette structure part 93 is locked to the first cassette structure part 93. The locking projection 51 is brought into contact with one guide portion receiver 101 of the fourth cassette structural part 93. Thereby, if the structure of the flexible locking pieces 96 and 100 of the cassette structure parts 92 and 93 and the guide portion receivers 97 and 101 is the same, the cassette structure parts 92 and 93 are moved in the first and second directions A1 and A2. It can be attached to any of these.

  Therefore, the electrical connection box 50 having the same structure can be used to cope with a change in the specifications of the cassette structure parts 92 and 93, and the electrical connection box 50 can be reduced in size, and the insertion direction of the cassette structure parts 92 and 93 can be reduced. The degree of freedom can be increased. In particular, in the electrical junction box 50 of this embodiment, the structure of the cassette structure component insertion portion 16 can be simplified as compared with the electrical junction box 10 of the first embodiment.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, instead of setting the first and second directions to be the vertical direction, the electrical junction box is arranged so that the first and second directions are in the horizontal direction according to the space allocation of the engine room, for example. In this case, each cassette structural component can be inserted from both the left and right directions.

It is the perspective view seen from diagonally upward at the time of inserting the 1st cassette structure component of 1st Embodiment of the electrical junction box which concerns on this invention. It is a partially broken perspective view of the cassette structure component insertion part of the electrical junction box of FIG. (A) is the top view seen from the upper direction of the cassette structure component insertion part of FIG. 2, (B) is the top view seen from the downward direction of the cassette structure component insertion part of FIG. It is the perspective view seen from the upper direction before the insertion of the 1st cassette structural component with respect to the electrical junction box of FIG. 1A is a cross-sectional view around the first cassette structural component when the first cassette structural component of FIG. 1 is attached to the electrical junction box, and FIG. 1B is an electrical connection of the first cassette structural component of FIG. It is sectional drawing around the 1st cassette structure components after the insertion to a box. It is a top view after insertion of the 1st cassette structure component in the electrical junction box of FIG. FIG. 7 is a bottom view of FIG. 6. It is the perspective view seen from diagonally downward at the time of inserting the 2nd cassette structure component in the electrical junction box of FIG. It is the perspective view seen from the bottom before insertion of the 2nd cassette structure component in the electrical junction box of FIG. 8A is a cross-sectional view of the second cassette structure component of FIG. 8 when it is inserted into the electrical junction box, and FIG. 8B is a second view after the second cassette structure component of FIG. 8 is inserted into the electrical junction box. FIG. 2 is a cross-sectional view around the cassette structural component of FIG. It is a top view around the 2nd cassette structure component after insertion of the 2nd cassette structure component to the electrical junction box of FIG. FIG. 12 is a bottom view of FIG. 11. It is the perspective view seen from diagonally upward at the time of inserting the 1st cassette structure component of 2nd Embodiment of the electrical junction box which concerns on this invention. It is a partially broken perspective view of the cassette structure component insertion part of the electrical junction box of FIG. It is a perspective view including the principal part cross section of the cassette structure component insertion part after insertion of the 1st cassette structure component to the cassette structure component insertion part of FIG. It is the perspective view seen from diagonally downward at the time of inserting the 2nd cassette structure component of 2nd Embodiment of the electrical junction box which concerns on this invention. It is a perspective view including the principal part cross section of the cassette structure component insertion part after the 2nd cassette structure component insertion in the cassette structure component insertion part of FIG. It is the schematic of the conventional electrical junction box. It is sectional drawing of the component fixing structure of the conventional electrical junction box, (A) is the fixing structure of the component inserted from the top, (B) is the fixing structure of the component inserted from the bottom.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electrical connection box 11 Connection box main body 16 Cassette structure component insertion part 22 Locking protrusion 23 Guide part 24 1st locking part 25 2nd locking part 28 1st stopper (stopper)
29 Second stopper (stopper)
DESCRIPTION OF SYMBOLS 50 Electrical connection box 51 1st latching protrusion 52 2nd latching protrusion 81 1st cassette structure component (cassette structure component)
82 Second cassette structural component (cassette structural component)
85 Flexible locking piece 86 Guide portion receiver 90 Flexible locking piece 91 Guide portion receiver 92 Third cassette structural component (cassette structural component)
93 Fourth cassette structural component (cassette structural component)
96 Flexible locking piece 97 Guide part receiver 100 Flexible locking piece 101 Guide part receiver

Claims (5)

An electrical junction box having an electrical junction box body in which a component insertion portion capable of inserting either one of the first cassette structural component and the second cassette structural component is formed,
The component insertion portion is formed with a through hole defined by an inner wall thereof and penetrating the electric junction box body,
The first cassette structural component can be inserted into the through hole from the opening on one end of the openings at both ends, and the second cassette structural component can be inserted from the opening on the other end of the openings on both ends. Yes,
The inner wall of the component insertion portion has a first locking portion for locking the first cassette structure component inserted into the through hole from the opening on the one end side, and the opening on the other end side. An electrical junction box, comprising: a second locking portion for locking the second cassette structural component inserted into the through hole.   The first locking portion and the second locking portion are integrally formed as an integrated locking portion on the inner wall of the component insertion portion, and are formed on opposite sides of the integrated locking portion. The electrical junction box according to claim 1, wherein the electrical junction box is provided.   The first locking portion and the second locking portion are formed apart on the inner wall of the component insertion portion, and the insertion direction of the first cassette structural component into the through hole and the first 2. The electrical junction box according to claim 1, wherein the electrical connection box is not on the same straight line parallel to an insertion direction of the two cassette structural parts into the through hole.   A stopper that prevents any one of the first cassette structural component and the second cassette structural component inserted into the component insertion portion from slipping forward in the insertion direction to the through hole is the component. The electrical junction box according to claim 1, wherein the electrical junction box is provided on an inner wall of the insertion portion.   The second locking member has the stopper for the first cassette structural component, and the first locking member has the stopper for the second cassette structural component. Item 5. An electrical junction box according to Item 4.

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