JP5494251B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electrical junction box.

  Conventionally, an electric junction box in which a circuit board is housed in a box-shaped casing is known (see Patent Document 1 below). This electrical connection box is mounted on a vehicle and executes energization or disconnection of in-vehicle electrical components such as lamps and audio equipment, and is configured to be accommodated in a relay box in an engine room. In addition, a connector block for fitting the mating connector is formed in the electrical connection box with the opening surface facing downward.

JP 2009-291043 A

  By the way, when the mating partner of the connector block provided in the electrical connection box is a standby connector (a connector fixed to the relay box), the connector block is inserted using the insertion operation of the electrical connection box to the relay box. It becomes a structure fitted to a standby connector.

  On the other hand, in order to improve the insertion property of the electrical junction box with respect to the relay box, it is desirable to have play between the two. However, if such play is provided, if the mating connector is a standby connector as described above, the electrical connection box may be tilted by the amount of play, and the connector of the electrical connection box may not fit into the standby connector. It was. In such a case, it is necessary for the worker to re-assemble and takes time.

  The present invention was created in view of the above circumstances, and an object of the present invention is to achieve both smooth insertion of an electrical connection box with respect to a storage box such as a relay box and fitting of a connector.

  The present invention relates to a circuit board on which an electronic component is mounted, a housing body that houses the circuit board, a closing body that closes the housing body, and a standby connector that is formed on the closing body and is provided in the housing box. And an electrical connection box that is inserted vertically into the housing box with the fitting surface of the connector portion facing downward, and formed in the housing box. A guide portion that guides insertion of the electrical connection box into the accommodation box by a fitting action with the guide groove; and after fitting the guide groove and the guide portion, by contacting a part of the inner wall of the accommodation box And a correction part that corrects the fall of the electrical junction box.

  If it does in this way, insertion of the electrical connection box with respect to a storage box can be guided by a guide part. Further, the inclination of the electrical junction box can be corrected after the guide portion is fitted by the action of the correction portion. Therefore, the connector portion can be smoothly fitted to the standby connector.

As an embodiment of the present invention, the following configuration is preferable.
In the structure in which the joint surface of both is sealed over the entire circumference by vibration welding the closing body to the container, both the guide portion and the correction portion are formed on the closing body. The configuration. In this way, the following effects can be obtained. Since vibration welding is performed by melting a part of the parts, it is usually difficult to obtain the dimensional accuracy of the two welded parts. If the guide part and the correction part are divided into two parts (closed body and container) that are welded by vibration, the dimensional error between the guide part and the correction part increases. In this regard, if both the guide part and the correction part are formed as a closed body, it is possible to reduce the dimensional error between the guide part and the correction part, and the smooth insertion property of the electrical connection box to the housing box and the connector. It is possible to ensure both of the fitting properties.

The guide portion is formed by extending the outer peripheral edge of the closing body outward in the width direction. With such a configuration, it is not necessary to provide a dedicated guide portion.

The correction portion is formed below the connector portion so as to be vertically aligned with the connector portion, and has a trapezoidal shape having a contact surface that comes into contact with the outer wall of the standby connector, and each contact surface is a connector portion. It is connected to the hood part.

  According to the present invention, it is possible to achieve both the smooth insertion property of the electrical connection box to the storage box and the fitting property of the connector.

The perspective view which shows the process in which the electrical junction box applied to one Embodiment of this invention is inserted with respect to a storage box.

The perspective view which shows the state which accommodated the electrical-connection box in the storage box Perspective view of storage box Top view of the storage chamber formed in the storage box Sectional view of storage chamber (cross-sectional view taken along line AA in FIG. 4) Disassembled perspective view of electrical junction box Perspective view of electrical junction box (shows upright position) View of the electrical junction box viewed from the front (front side) Top view of electrical junction box An enlarged view of a part of FIG. View of electrical junction box viewed from the back (rear) View of electrical junction box from below BB sectional view in FIG. CC sectional view in FIG. The perspective view which shows the state which assembled | attached the other party connector to the electrical junction box View of the storage room from the top (showing the storage state of the electrical junction box) Sectional view showing the insertion process of the electrical junction box into the storage room Sectional drawing which shows the insertion process of the electrical junction box with respect to a storage chamber (The state which the front wall of the correction | amendment part contact | abutted the standby connector is shown) Sectional view showing the process of inserting the electrical junction box into the storage room (showing the end of insertion) Sectional drawing which shows the insertion process of the electrical junction box with respect to a storage chamber (showing a connector fitting position)

  An embodiment of the present invention will be described with reference to FIGS. The electrical junction box 10 of the present invention is accommodated vertically in a storage chamber 250 provided in the storage box 200 (FIGS. 1 to 2).

1. The structure of the storage box to which the electrical junction box 10 is attached The storage box 200 is connected between a power source (not shown) such as a battery and on-vehicle electrical equipment (not shown) such as a headlamp and a wiper. A variety of in-vehicle electrical components are energized and disconnected by the relay (not shown) and the electrical connection box 10. Such a storage box 200 may be referred to as a so-called relay box.

  The storage box 200 is made of a synthetic resin and has a bottomed cylindrical shape whose upper surface is opened as an opening as shown in FIG. The storage box 200 has a bottom wall divided as a lower cover 280. That is, the lower cover 280 constitutes the bottom wall of the storage box 200 and is attached to the storage box 200 from below. The lower cover 280 is provided with a drawer port 290 for pulling out the harness and a drain port.

  The interior of the storage box 200 is partitioned into a plurality of storage chambers by partition walls, and one of them (in this example, the storage chamber 250 located on the right front side in the figure) is for storing the electrical connection box 10. Assigned as.

  As shown in FIG. 4, the storage chamber 250 has a horizontally long shape that is long in the width direction. The storage chamber 250 has a shape that is slightly larger than the size of the electrical junction box 10 and accommodates the electrical junction box 10 in the vertical direction. In the accommodation chamber 250, four standby connectors 315, 325, 335, and 345 are provided on the inner wall surface 251 corresponding to the lower side of FIG. 4.

  More specifically, the standby connector 315 is provided on the left corner side of the inner wall surface 251, while the standby connectors 325 to 345 are all continuously formed side by side on the right side of the inner wall surface 251. . These standby connectors 315, 325, 335, and 345 are all formed with their mating surfaces facing upward (see FIG. 5), and are electrically connected as the electrical connection box 10 is accommodated (inserted) into the accommodation chamber 250. The connector portion 115, 125, 135, or 145 formed on the box 10 side is configured to be fitted.

  The outer wall 315a of the standby connector 315 is a flat plane. Further, the outer wall 325a is also a flat surface on the standby connectors 325 to 345 side. The outer surface walls 315a and 325a serve as receiving surfaces for the contact surfaces 55a and 54a formed on the electric junction box 10 side (described in detail later).

  In addition, guide grooves 261R and 261L are formed on the left and right inner walls 254 and 255 on both sides in the width direction of the storage chamber 250 so as to face each other. The guide grooves 261 </ b> R and 261 </ b> L are formed by recessing the wall surfaces of the inner walls 254 and 255, and are formed in the insertion direction (that is, the vertical direction) of the electrical connection box 10 with respect to the storage chamber 250. Specifically, the inner walls 254 and 255 extend straight from the upper end to the bottom of the storage chamber 250 (see FIG. 5).

  In these two guide grooves 261R, 261L, guide portions (specifically, outside of the closing body 51) formed in the electrical connection box 10 at the stage of the initial operation of inserting the electrical connection box 10 into the storage chamber 250. The peripheral portions 61R and 61L) are configured to be fitted. The play between the guide grooves 261R and 261L and the guide portion (specifically, the outer peripheral edge portions 61R and 61L of the closing body 51) is set to be slightly larger.

  Each inner wall 254, 255 is formed with a pair of receiving grooves 267a, 267b and a lock receiving portion 266 located between the grooves. The receiving grooves 267a and 267b correspond to the insertion pieces 107a and 107b formed in the electrical junction box 10, and can accept the insertion pieces 107a and 107b from above.

  The pair of receiving grooves 267a and 267b are formed in the height direction around the middle of the accommodation chamber 250 (generally around the height position where the standby connectors 325 to 345 are formed), and are electrically connected to the accommodation chamber 250. In the final operation stage of the box 10 insertion operation, the insertion pieces 107a and 107b are fitted.

  These receiving grooves 267a and 267b and the insertion pieces 107a and 107b are set to have a small play, and the electric connection box 10 is positioned severely. When the electrical connection box 10 reaches the lock position, the electrical connection box 10 is locked to the storage chamber 250 by the lock portion 106 of the electrical connection box 10 being locked to the lock receiving portion 266 on the storage chamber 250 side. It is the composition which becomes.

2. Description of Structure of Electrical Junction Box 10 The electrical junction box 10 includes a circuit board 20 and a circuit casing 30 as shown in FIG. The circuit board 20 is obtained by mounting an electronic component Z such as a semiconductor relay on a rectangular printed board formed with a conductive path (not shown) by a printed wiring technique. The circuit board 20 is provided with a moisture-proof insulating coating (a liquid resin is applied by spraying or the like to form a thin film) after mounting electronic components, and water droplets adhere to the circuit board 20 due to condensation. However, the electrical performance is not affected.

  The circuit casing 30 accommodates the circuit board 20 therein, and includes a housing 31 and a closing body 51. The container 31 is made of a synthetic resin (for example, a thermoplastic resin such as polybutylene terephthalate or polypropylene), and includes a plate-like bottom plate 32 and a peripheral wall 41 erected along the periphery of the bottom plate 32. As a whole, it has a box shape (tray type) with a shallow bottom. The bottom plate 32 of the housing 31 has a shape that is slightly larger than the circuit board 20. The bottom plate 32 protrudes downward from the center of the lower end, and has a pentagonal shape as a whole.

  The peripheral wall 41 is formed over the entire periphery of the bottom plate 32, and a flange 42 is provided at the end of the wall. The flange 42 projects outward and is formed over the entire circumference of the peripheral wall 41. Further, a protrusion 43 is integrally formed on the flange 42. The ridge 43 is continuously formed over the entire circumference of the peripheral wall 41 and has an annular shape. The peripheral wall 41 functions as a side wall that covers four sides of the outer periphery of the circuit board.

  The container 31 has a V-shaped pentagon formed in the lower part, and a vent hole 37 is formed through the bottom plate 32 of the container 31 at the vertex of the V-shape. ing. In addition, a guide slope 34 is formed on the outer surface side of the bottom plate 32 of the container 31 (see FIG. 11). The guide slope 34 is intermittently formed along the outer peripheral edge of the bottom plate 32. The guide slope 34 is an invitation for setting the electrical junction box 10 on an attachment (a mounting tool, not shown) of the vibration welding apparatus.

  Returning to FIG. 6 and continuing the description, the closing body 51 is made of a synthetic resin (for example, a thermoplastic resin such as polybutylene terephthalate or polypropylene), and is a pentagonal plate capable of closing the opening surface of the container 31. It has a shape. Of the closing body 51, two support bosses 59 formed with screw holes are provided on both sides in the width direction on the inner surface side facing the bottom plate 32 of the housing body 31. Can be screwed.

  The closing body 51 has a shape that is slightly larger than the housing 31, and when assembled to the housing 31, the outer peripheral edge 61 of the closing body 51 overlaps with the tip of the protrusion 43 of the housing 31. The opening surface of the body 31 is closed. A positioning wall 56 is formed on the inner surface of the closing body 51. The positioning wall 56 restricts the position of the closing body in the surface direction with respect to the container 31, and is configured to be located inside the protrusion 43 formed in the container 31.

  And the closing body 51 is vibration-welded to the protrusion 43 formed in the container 31, and the mating surface F of the container 31 and the closing body 51 has a sealed structure. In this thing, since the protrusion 43 used as a joining edge is formed without a cut | interruption over the perimeter of the container 31, the mating surface F of the container 31 and the closing body 51 extends over the perimeter. It has a completely sealed structure. In addition, the front-end | tip of the protrusion part 43 is formed in the taper shape so that it may melt easily at the time of vibration welding.

  Further, in this embodiment, the guide portions that fit into the guide grooves 261 </ b> R and 261 </ b> L formed in the storage chamber 250 are formed using the outer peripheral edge portion 61 of the closing body 51. More specifically, the left and right outer peripheral edge portions 61R and 61L of the closing body 51 extend outward in the width direction beyond the outline K of the container 31, and are accommodated as shown in FIGS. It protrudes to the outside of the body 31 (left side in FIG. 10).

  Each of these outer peripheral edge portions 61R and 61L protrudes outside the housing 31 over the entire range (range H in FIG. 11) corresponding to the total height of the electrical junction box 10 as shown in FIG. The guide grooves 261R and 261L formed in the chamber 250 are fitted with a certain play (clearance).

  In this embodiment, out of the outer peripheral edge 61 of the closing body 51, the outer peripheral edges 61A and 61B other than 61R and 61L are also protruded outward from the container 31. That is, if it is the upper outer peripheral edge 61A, it protrudes upward from the container 31, and if it is the lower outer peripheral edge 61B, it protrudes downward from the container 31.

  Next, a horizontally long connector block 100 is integrally formed over the entire surface of the closing body 51. The connector block 100 is provided with six hood portions 115 to 165 arranged in the width direction (see FIGS. 6 and 12), and constitutes six connector portions 110 to 160. The hood portions 115 to 165 of each of the six connector portions 110 to 160 are each provided with a fitting port for fitting the mating connector at the lower side in FIG. 7 (lower side when the electric connection box 10 is mounted on the vehicle). ) And the mating connector is fitted from below.

  In the connector block 100, a bus bar B is insert-molded so as to correspond to the hood portions 115 to 165. Each bus bar B is formed by bending a metal plate into an L shape, and has one end projecting into the corresponding hood portion 115 to 165 as shown in FIG. Further, the other end side of each bus bar B is drawn out to the circuit board 20 side and is configured to be inserted into the through hole SH of the circuit board 20.

  Of the six connector parts 110 to 160 described above, the connector part 110 at the left end shown in FIG. 12 and the connector parts of the three connector parts 120 to 140 from the right end shown in FIG. The standby connectors 315 and 325 to 345 formed in the above. That is, the mating partner of the connector unit 110 is the standby connector 315, the mating partner of the connector unit 120 is the standby connector 325, the mating partner of the connector unit 130 is the standby connector 335, and the connector unit 140 is mated. The other party is the standby connector 345.

  And the correction | amendment parts 55 and 54 are formed in the surface side of the closing body 51 corresponding to each of these connector parts 110 and 120-140 (connector part whose other party is a standby connector). Specifically, as shown in FIGS. 6 to 8 and 12, the correction portion 55 is formed corresponding to the connector portion 110. The correction part 55 is formed below the connector part 110 and has a trapezoidal shape that is long in the vertical direction (vertical direction). The width of the correction portion 55 is substantially the same as the width of the connector portion 110, and the lower end reaches the lower portion of the closing body 51.

  Moreover, the correction | amendment part 54 is formed corresponding to the connector parts 120-140. The correction part 54 is formed below the connector parts 120 to 140 and has a trapezoidal shape that is long in the vertical direction (vertical direction). The width of the correction portion 54 is substantially the same as the total width of the three connector portions 120 to 140, and the lower end reaches the lower portion of the closing body 51.

  Both the front wall 55a of the correction unit 55 and the front wall 54a of the correction unit 54 are flat contact surfaces, and fulfill the function of correcting the falling of the electrical junction box 10 during the insertion process into the storage chamber 250. More specifically, since there is play between the guide grooves 261R, 261L and the outer peripheral edge portions 61R, 61L, the electrical connection box 10 is in the R direction (front-rear direction) in FIG. ) Or Q direction (left-right direction).

  Therefore, in the present embodiment, the correction portion 55 is provided and the front wall 55a is abutted against the outer wall 315a of the standby connector 315, and the correction portion 54 is provided and the front wall 54a is set as the standby connector. It was set as the structure which abuts on the outer surface wall 325a of 325-345. In this way, the wall surfaces (planes) are brought into contact with each other, so that the fall can be corrected, and the electrical junction box 10 can be in an upright posture. And since these correction | amendment parts 54 and 55 are formed in the both sides of the width direction of the electrical junction box 10, it has the structure which can correct the fall of the both sides of the electrical junction box 10 equally.

  Moreover, the correction | amendment part 54 and the correction | amendment part 55 bulge the surface of the closing body 51 in the shape of a base, and as shown in FIG. 14, the front wall 54a is with respect to the inner walls 125a-145a of the food | hood parts 125-145. The front wall 55a continues to the inner wall 115a of the hood portion 115 via the small step d.

  As described above, the front walls 54a and 55a of the correction portions 54 and 55 are substantially continuous with the hood portions 115 and 125 to 145 of the connector portions 110 and 120 to 140, respectively. The connector portions 110 and 120 to 140 can be directly opposed to the respective standby connectors 315 and 325 to 345 corresponding thereto.

  Returning to FIG. 7, the description continues and the side wall 104, 105 located on both sides in the width direction of the connector block 100 is formed with a lock portion 106 and a pair of insertion pieces 107a, 107b, respectively. The lock portion 106 is engaged with a lock receiving portion 266 of the storage chamber 250 provided in the storage box 200 and functions to lock the electrical connection box 10 to the storage chamber 250.

  The pair of insertion pieces 107a and 107b are on both sides of the lock portion 106 and extend linearly downward. These insertion pieces 107a and 107b are configured to be inserted into receiving grooves 267a and 267b formed in the storage chamber 250, respectively, and the insertion operation of the electric junction box 10 into the storage chamber 250 together with the receiving grooves 267a and 267b. Has the function of guiding.

  Further, as shown in FIG. 9, a concave portion 181 that is recessed in a mortar shape is formed in the central portion in the width direction on the upper surface wall 101 of the connector block 100, and the inspection terminal 183 penetrates therethrough vertically. Is attached. The inspection terminal 183 is a terminal for performing a function inspection of the circuit board 20 and is insert-molded in the connector block 100.

  A first drain slope 190 is formed around the recess 181 in the upper surface wall 101 of the connector block 100. The first drain slope 190 prevents water droplets from being transmitted to the concave portion 181 side where the inspection terminal 183 is provided. In this embodiment, the first drainage slope 190 is composed of three slopes 190a, 190b, and 190c having different height differences, and the water droplets that have fallen into the first drainage slope 190 change from the higher slope to the lower slope. After flowing down, the connector block 100 is finally drained to the side wall 104 side.

  A second drain slope 195 is formed on the upper surface wall 101 of the connector block 100 along with the first drain slope 190 described above. As shown in FIG. 9, the second drain slope 195 extends while being inclined downward toward the end in the width direction of the connector block 100 (the right end in FIG. 9) starting from the recess 181. The second drain slope 195 reaches the side wall (the side wall 104 on the right side in the width direction) of the connector block 100, and even if a water droplet enters the recess 181, the water droplet is drained to the side wall 104. It has become.

3. Assembly Procedure of Electrical Junction Box 10 to Storage Box 200 To assemble electrical connection box 10 to storage box 200, as shown in FIG. The mating connectors 350 and 360 are first fitted to the portion 160.

  Next, while moving the electrical junction box 10 onto the accommodation chamber 250, the positions are adjusted so that the outer peripheral edge portions 61R and 61L on the electrical junction box 10 side are fitted in the guide grooves 261R and 261L. Since the guide grooves 261R and 261L and the outer peripheral edge portions 61R and 61L have a relatively large play, the outer peripheral edge portions 61R and 61L are relatively less than the guide grooves 261R and 261L as long as they are roughly aligned. Easy to fit.

  After the outer peripheral edge portions 61R and 61L can be fitted into the guide grooves 261R and 261L, the electrical connection box 10 is inserted toward the back side of the storage chamber 250. Then, the electrical connection box 10 is inserted while maintaining a posture that is generally directed upward and downward due to their fitting action. Since the guide grooves 261R and 261L and the outer peripheral edge portions 61R and 61L have a large play as described above, even if they are fitted, the electrical connection box 10 is equivalent to a play during the insertion operation. May fall over.

  Now, as shown in FIG. 17, when the electrical junction box 10 can be inserted to a certain depth, this time, the electrical junction box 10 being inserted is directed toward the inside of the accommodation chamber 250 (right side in FIG. 17). And press it lightly.

  When this pressing operation is performed, as shown in FIG. 18, the front wall 55 a of the correction unit 55 abuts against the outer wall 315 a of the standby connector 315, and the front wall 54 a of the correction unit 54 is the outer surface of the standby connectors 325 to 345. It strikes against the wall 325a. As a result, it is possible to correct the above-mentioned fall of the play amount, and the posture of the electric junction box 10 is an upright posture that does not fall. At this time, the connector portions 110 and 120 to 140 of the electrical junction box 10 are positioned in front of the standby connectors 315 and 325 to 345 of the storage chamber 250.

  After that, the electric connection box 10 may be further inserted into the inner side of the housing chamber 250 while pressing the front walls 55a, 54a of the correction sections 55, 54 against the outer walls 315a, 325a of the standby connectors 315, 325-345. Good. Then, the standby connectors 315 and 325 to 345 on the storage chamber 250 side are respectively inserted into the connector portions 110 and 120 to 140 of the electrical connection box 10, and the reception grooves 267a and 267b formed in the storage chamber 250 are inserted. The insertion pieces 107a and 107b of the electric connection box 10 are fitted. When inserting, it is necessary to get over the small step d. However, since a leading taper is provided at the tip of the standby connectors 315 and 325 to 345, the small step d is inserted (connector fitting). A).

  When the insertion pieces 107a and 107b are fitted into the receiving grooves 267a and 267b, the position of the electrical connection box 10 is regulated in a state free from play by the fitting action of both. Thereafter, the electrical junction box 10 reaches the connector fitting position shown in FIG. In this connector fitting position, each standby connector 315, 325-345 formed in the storage chamber 250 is normally fitted to each connector part 110, 120-140 of the electrical connection box 10, and the terminals of both connectors are electrically connected. Connected to the.

  Further, the connector fitting position shown in FIG. 20 is a lock position of the electrical connection box 10, and the lock portion 106 of the electrical connection box is engaged with a lock receiving portion 266 formed in the storage chamber 250. As a result, the electrical junction box 10 is prevented from being detached from the storage chamber 250.

  Then, the effect | action and effect of this embodiment are demonstrated. In the present embodiment, the electrical connection box 10 can be regulated to a generally vertically oriented posture by the fitting action of the guide grooves 261R, 261L formed in the storage chamber 250 and the outer peripheral edge portions 61R, 61L of the closing body 51. Is possible. Therefore, the electrical connection box 10 is not greatly inclined during the insertion work, and the electrical connection box 10 can be smoothly inserted into the storage chamber 250. Moreover, since a slightly larger play is provided between the guide groove 261 and the outer peripheral edge 61, it is possible to easily perform the initial fitting, and this point also facilitates the insertion work. It is extremely effective.

  On the other hand, if play is provided between the guide grooves 261R and 261L and the outer peripheral edge portions 61R and 61L, the electrical junction box 10 falls down. However, the fall of the electrical junction box 10 can be corrected by the correction units 54 and 55. For this reason, it is possible to suppress misalignment between the standby connectors 315 and 325 to 345 formed in the storage chamber 250 and the connector portions 110 and 120 to 140 of the electrical connection box 10, and no fitting failure occurs. From the above, it is possible to achieve both the smooth insertion property of the electrical connection box 10 with respect to the storage chamber 250 and the fitting property of the connector.

  Further, in particular, the correction portions 55 and 54 are vertically aligned with the connector portions 110 and 120 to 140, and the front walls 55 a and 54 a are continuous with the hood portions 115 and 125 to 145. Therefore, if the front walls 55a and 54a of the correction parts 55 and 54 are put on the outer surface walls 315a and 325a of the standby connectors 315 and 325 to 345, the respective hood parts 115 are naturally placed in front of the standby connectors 315 and 325 to 345. , 125 to 145 are arranged. Therefore, it is possible to fit the both without fail.

  In addition, the electrical junction box 10 is vibration welded over the entire circumference of the mating surface F of the containing body 31 and the closing body 51, so that the airtightness can be made extremely high. However, on the other hand, it is difficult to obtain the dimensional accuracy of the two welded parts. If the outer peripheral edge portions 61R and 61L as the guide portions and the correction portions 55 and 54 are divided into two parts to be vibration welded (the closing body 51 and the housing body 31), the outer peripheral edge portions as the guide portions are arranged. The dimensional error between 61R and 61L and the correction parts 55 and 54 becomes large.

  In this regard, in the present embodiment, since both the outer peripheral edge portions 61R and 61L that are guide portions and the correction portions 55 and 54 are formed on the closed body 51, the outer peripheral edge portions 61R and 61L that are guide portions are corrected. It becomes possible to reduce the dimensional error of the parts 55 and 54. If the dimensional error between the outer peripheral edge portions 61R and 61L as the guide portions and the correction portions 55 and 54 can be reduced, the position of the electrical junction box 10 is easily raised with respect to the storage box 200, so that smooth insertion is possible. It is possible to ensure both compatibility and connector fitting.

  And in this thing, the guide part used as the other party of the guide grooves 261R and 261L is formed by extending the outer peripheral edge parts 61R and 61L of the closing body 51 outward in the width direction. With such a configuration, there is no need to provide a dedicated guide portion, and there is an advantage that the shape of the closing body 51 and, in turn, the electrical connection box 10 can be simplified.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, an example in which the fall of the electrical junction box 10 is corrected by bringing the front wall (abutment surface) of the correction unit into contact with the outer wall of the standby connector has been described. However, the fall can be corrected. If possible, the front wall (the contact surface) of the correction section may be applied to other locations.

  (2) In the above embodiment, the small step d is provided between the inner wall 115a of the hood part 115 and the front wall 55a. However, such a small step d is not necessarily provided, and the inner wall 115a and the front wall 55a are not provided. It may be flush.

DESCRIPTION OF SYMBOLS 10 ... Electrical junction box 20 ... Circuit board 30 ... Circuit casing 31 ... Housing 32 ... Bottom wall 41 ... Peripheral wall 42 ... Flange 51 ... Closed body 54, 55 ... Correction part 54a, 55a ... Front wall (abutting surface)
61R, 61L ... Outer peripheral edge (guide)
DESCRIPTION OF SYMBOLS 100 ... Connector block 110-150 ... Connector part 115-155 ... Hood part 200 ... Accommodating box 250 ... Accommodating chamber 261R, 261L ... Guide groove 315 ... Standby connector 315a ... Outer wall 325-345 ... Waiting connector 325a ... Outer wall

Claims (4)

A circuit board on which electronic components are mounted;
A housing for housing the circuit board;
A closing body for closing the container;
A connector portion that is formed with respect to the closing body and that engages a standby connector provided in the storage box from below, and is vertically oriented with the fitting surface of the connector portion facing downward with respect to the storage box An electrical junction box inserted,
A guide portion for guiding insertion of the electrical connection box into the storage box by a fitting action with a guide groove formed in the storage box;
An electrical connection comprising: a correction portion that corrects the collapse of the electrical connection box by contacting a part of the inner wall of the storage box after the guide groove and the guide portion are fitted. box. In the configuration in which the mating surfaces of both are sealed over the entire circumference by vibration welding the closing body to the container,
The electrical junction box according to claim 1, wherein both the guide portion and the correction portion are formed on the closing body.   The electrical connection box according to claim 2, wherein the guide portion is formed by extending an outer peripheral edge portion of the closing body outward in the width direction.   The straightening portion is formed below the connector portion so as to be lined up and down with the connector portion, and has a trapezoidal shape having a contact surface that comes into contact with the outer surface wall of the standby connector. The electrical junction box according to claim 2, wherein the electrical junction box is connected to an inner wall of the hood portion.

Images