JP3669224B2 - Case of electronic control equipment - Google Patents

Case of electronic control equipment Download PDF

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Publication number
JP3669224B2
JP3669224B2 JP26415499A JP26415499A JP3669224B2 JP 3669224 B2 JP3669224 B2 JP 3669224B2 JP 26415499 A JP26415499 A JP 26415499A JP 26415499 A JP26415499 A JP 26415499A JP 3669224 B2 JP3669224 B2 JP 3669224B2
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JP
Japan
Prior art keywords
connector
portion
opening
case
side surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP26415499A
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Japanese (ja)
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JP2001085858A (en
Inventor
恵一 加藤
俊樹 小林
俊雄 藤村
秀樹 高須
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP26415499A priority Critical patent/JP3669224B2/en
Priority claimed from DE10045728.2A external-priority patent/DE10045728B4/en
Publication of JP2001085858A publication Critical patent/JP2001085858A/en
Application granted granted Critical
Publication of JP3669224B2 publication Critical patent/JP3669224B2/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/06Hermetically-sealed casings
    • H05K5/062Hermetically-sealed casings sealed by a material injected between a non-removable cover and a body, e.g. hardening in situ

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is suitable as an electronic control device installed in an engine room of an automobile, for example, and relates to a case of an electronic control device having an improved waterproof structure.
[0002]
[Prior art]
As an example of an electronic control device installed in an engine room of an automobile, for example, there is an engine control unit (hereinafter referred to as ECU). The ECU is composed of a printed wiring board on which various electronic components including a microcomputer are mounted, and a case for housing the printed wiring board. Here, ECUs under development by the present inventors are shown in FIGS.
[0003]
First, as shown in FIG. 10, the case 1 of the ECU includes a case body 2 having a rectangular container shape and a cover 3 that closes the opening 2 a on the upper surface of the case body 2. A printed wiring board 4 is accommodated in the case body 2 and attached by screws 5. A connector 6 is attached to the right end portion of the printed wiring board 4, and a connector opening 2 c for fitting the connector 6 is fitted on the right side wall 2 b of the case body 2. It is formed so as to communicate with 2a.
[0004]
Further, as shown in FIG. 11, a flange 2d is formed at the opening edge of the case body 2, and a groove 2e for filling the liquid sealing material 7 is formed on the upper surface of the flange 2d. Has been. The illustration of the groove 2e in FIG. 10 is omitted. A groove (not shown) for filling the liquid sealing material 7 is also formed on the upper surface 6 a of the connector 6. A groove portion (not shown) for filling the liquid sealing material 7 is also formed on the bottom surface portion 2 f of the connector opening 2 c of the case body 2. Here, the inner side surfaces 2g and 2h on both sides of the connector opening 2c are flat surfaces.
[0005]
In the case of the above configuration, the liquid sealing material 7 is applied to the case body 2 and the connector 6 as shown by the hatched area in FIG. The printed circuit board 4 is accommodated in the case body 2 and screwed, and the cover 3 is placed on the opening 2a (the flange portion 2d) of the case body 2 and screwed. Then, as shown in FIG. 11, the gap between the flange portion 3 a of the cover 3 and the flange portion 2 a of the case body 2 is sealed by the liquid sealing material 7. Although not shown, similarly, the liquid sealing material 7 is used between the upper surface portion 6a of the connector 6 and the flange portion 3a of the cover 3, and between the lower surface portion of the connector 6 and the bottom surface portion 2f of the connector opening 2c. And between the outer side surfaces 6b, 6c on both sides of the connector 6 and the inner side surfaces 2g, 2h on both sides of the connector opening 2c. Thereby, case 1 is comprised so that sufficient waterproof performance may be acquired.
[0006]
[Problems to be solved by the invention]
Here, consider the seal between the outer side surface portions 6b, 6c on both sides of the connector 6 and the inner side surface portions 2g, 2h on both sides of the connector opening 2c. In the above configuration, when the connector 6 is assembled so as to be located at the exact center of the connector opening 2c, that is, in a regular position, as shown in FIG. A gap having an appropriate distance is formed between the outer side surface portions 6b and 6c and the inner side surface portions 2g and 2h on both sides of the connector opening 2c. And sufficient sealing performance is acquired because the liquid sealing material 7 interposes in this suitable clearance gap.
[0007]
On the other hand, when the connector 6 is assembled so as to be located at a position shifted laterally from the normal position in the connector opening 2c, as shown in FIG. 13, the side surfaces 6b and 6c of the connector 6 are provided. And one of the gaps between the inner side surfaces 2g and 2h of the connector opening 2c is considerably reduced. In this case, if there is a gap even if it is small, the liquid sealing material 7 is interposed in this small gap, so that the sealing performance can be ensured. However, as shown in FIG. 13, since the gap is small, there is a problem that the protruding amount of the liquid sealing material 7 increases.
[0008]
Further, when the connector 6 is assembled so as to be located at a position that is further deviated laterally from the normal position in the connector opening 2c, as shown in FIG. 14, one side surface portion 6b ( Alternatively, 6c) comes into contact with (in contact with) one inner surface 2g (or 2h) of the connector opening 2c. In this case, since the liquid sealing material 7 is scraped off, there is a problem that the sealing performance is lost.
[0009]
Here, a measure to increase the accuracy of the assembly position of the connector 6 (that is, the printed wiring board 4) can be easily considered so that the assembly position of the connector 6 becomes a regular position. However, in an actual ECU production line, Increasing the accuracy of the assembly position of the connector 6 causes the problem that the production facility becomes complicated and the cost increases, so it is difficult to adopt the above measures.
[0010]
Accordingly, an object of the present invention is to ensure a gap between the side surface portions on both sides of the connector and the inner side surface portions on both sides of the connector opening of the case body without increasing the accuracy of the connector assembly position. An object of the present invention is to provide a case of an electronic control device that can achieve sufficient sealing performance.
[0011]
[Means for Solving the Problems]
  Case of electronic control device of the present inventionAccording to the inner side part on both sides of the connector opening or the outer side part on both sides of the connectorThe intermediate part of the side part in the direction along the assembling direction when assembling the connector in the case bodyProvided inProtrudingBy determining the position of the connector by the positioning portion, a predetermined gap can be secured between the inner side surface portion of the connector opening and the outer surface portion of the connector. For this reason, even if the accuracy of the assembly position of the connector is low, a gap can be reliably ensured between the side surface portions on both sides of the connector and the inner side surface portions on both sides of the connector opening of the case body. Therefore, sufficient sealing performance can be obtained by interposing a liquid sealing material in the gap.
[0012]
  Moreover, in the case of the said structure, it is preferable that the said positioning part is comprised by the protrusion part provided in the inner side part of the both sides of the said opening part for connectors so that it might extend along the assembly direction of the said connector. Further, the portion of the outer surface portion of the connector that is in contact with the liquid sealing material is preferably flat. Furthermore, it is preferable that the connector is configured to be assembled from above the connector opening.
[0013]
  A case of another electronic control device of the present invention includes a case main body having an opening on the upper surface portion and accommodating an electronic circuit unit, a cover for closing the opening of the case main body, and a side wall portion of the case main body. An upper surface of the connector, which is provided to communicate with the opening and between which the connector provided in the electronic circuit unit fits, an opening edge of the case body, and a peripheral edge of the cover A liquid sealing material that seals between the peripheral portion of the cover and the peripheral portion of the cover, and between the inner surface of the connector opening and the outer surface of the connector, and the inner surface on both sides of the connector opening. Provided in an intermediate portion of the side surface portion in the direction along the assembly direction when the connector is assembled to the case body, and by determining the position of the connector, A ridge-shaped positioning portion that secures a predetermined gap between the outer surface portion of the connector and grooves provided on both sides of the ridge-shaped positioning portion on the inner side surfaces on both sides of the connector opening. And is configured.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment in which the present invention is applied to an engine control unit (hereinafter referred to as ECU) will be described with reference to FIGS. First, FIG. 2 is an exploded perspective view schematically showing the overall configuration of the ECU 11 of the present embodiment. As shown in FIG. 2, the ECU 11 includes a printed wiring board 12 on which various electronic components including a microcomputer are mounted, and a case 13 that accommodates the printed wiring board 12. The printed wiring board 12 constitutes the electronic circuit unit of the present invention, and a connector 14 is attached to the right end, which is one end thereof, by soldering, for example.
[0017]
The case 13 of the ECU 11 includes a case body 15 having a rectangular container shape and a cover 16 that closes the opening 15 a on the upper surface of the case body 15. The case body 15 is formed by, for example, aluminum die casting, and the thickness of each wall portion is relatively thick. A plurality of (for example, four) support protrusions 17 are formed in the case main body 15 in the vertical direction along the inner surfaces of the left and right side wall portions 15b and 15c in FIG. The height of the support protrusion 17 is the same as the height of the side walls 15b and 15c.
[0018]
Further, a lower side wall portion 15d in FIG. 3 of the case body 15 is formed so that the connector 14 can be fitted, that is, a substantially trapezoidal opening portion 15e communicates with the opening portion 15a. (See FIG. 3). This opening 15e is the connector opening of the present invention.
[0019]
In the case of this configuration, when the printed wiring board 12 is attached to the case body 15, the printed wiring board 12 is placed on the support convex portion 17 and the connector 14 of the printed wiring board 12 is inserted into the connector opening 15e. And fit. Then, the screw 18 is inserted into a screw insertion hole formed in the printed wiring board 12 and is fastened and fixed to the screw hole formed in the support convex portion 17.
[0020]
Thereby, the printed wiring board 12 is attached to the case main body 15. In this mounted state, the height of the upper surface portion 14a of the connector 14 and the height of the opening edge portion 15f of the case body 15 are substantially the same, that is, they are configured to be substantially flush with each other. Yes.
[0021]
A flange 15g is formed on the opening edge 15f of the case body 15 so as to protrude outward. On the upper surface of the flange portion 15g (that is, the opening edge portion 15f), a groove portion 15h (see also FIG. 6) for filling and holding the liquid sealing material 19 (see FIG. 6) is formed. As the liquid sealing material 19, it is preferable to use, for example, an adhesive resin having a sealing property, specifically, an ultraviolet curable resin, an activator curable resin, an anaerobic curable resin, a moisture curable resin, or the like.
[0022]
Further, a groove portion 14b for filling and holding the liquid sealing material 19 is also formed on the upper surface portion 14a of the connector 14 (see also FIG. 7). The groove portion 14b of the connector 14 is connected to the groove portion 15h of the case body 15 almost continuously. The width of the groove 14b of the connector 14 is set wider than the width of the groove 15h of the case body 15. In this case, you may set the width dimension of both the groove parts 14b and 15h to the same dimension.
[0023]
Furthermore, a groove 15j for filling and holding the liquid sealing material 19 is also formed on the bottom surface 15i of the connector opening 15e of the main body case 15 (see also FIG. 7). And as shown in FIG. 7, the lower surface part 14c of the connector 14 is formed with a convex part 14d that fits into the groove part 15j.
[0024]
Further, the inner side surface portions 15k and 15l on both sides of the connector opening portion 15e are provided with ridge portions 15n so as to extend from the upper end portion to the lower end portion. The height of the protrusion 15n is, for example, about 0.1 to 0.2 mm. The said protrusion part 15n comprises the positioning part of this invention. And as shown in FIG.1 and FIG.5, the groove parts 15o and 15p for filling and holding the liquid sealing material 19 are formed in the both sides of the protrusion part 15n. The grooves 15o and 15p are not shown in FIGS. 2 and 3.
[0025]
On the other hand, the outer surface portions 14e and 14f on both sides of the connector 14 are flat planes. The outer side surfaces 14e and 14f on both sides of the connector 14 are configured to face the inner side surfaces 15k and 15l on both sides of the connector opening 15e.
[0026]
In the case of the above configuration, when the connector 14 is assembled so that either one of the outer side surface portions 14e and 14f of the connector 14 approaches one of the inner side surface portions 15k and 15l of the connector opening 15e, One of the outer side surface portions 14e and 14f of the 14 contacts one of the inner side surface portions 15k and 15l of the protruding portion 15n of the connector opening 15e (see FIG. 1). Therefore, a predetermined distance (for example, about 0.1 to 0.2 mm) between either one of the outer side surface portions 14e and 14f of the connector 14 and one of the inner side surface portions 15k and 15l of the connector opening 15e. A gap larger than the above gap is secured between the other and the other.
[0027]
Note that a wall portion 15m is formed in a rising shape (that is, substantially vertically) outside the flange portion 15g (that is, the opening edge portion 15f) of the case body 15 (see FIGS. 2, 4, and 6). ). As shown in FIG. 6, the wall portion 15 m has a function of blocking the protruding liquid sealing material 19.
[0028]
Further, attachment pieces (not shown) are provided at upper ends of the left and right side wall portions 15b, 15c of the case body 15 so as to protrude in the left-right direction. These attachment pieces are used when the ECU 11 (case 13) is attached and fixed to a predetermined installation site in an engine room of an automobile, for example.
[0029]
On the other hand, the cover 16 is formed, for example, by pressing an iron plate. The cover 16 is formed with a bulging portion 16a bulging upward. A flange portion 16 b is formed on the entire periphery of the peripheral portion of the cover 16. As shown in FIG. 6, the flange portion 16b includes an inner horizontal portion 16c, a protruding portion 16d having a substantially U-shaped cross section, and an outer horizontal portion 16e. The lower end portion of the protruding portion 16 d is formed in a size that fits into the groove portion 15 h of the case main body 15. Here, a lower end portion of a portion corresponding to the groove portion 14b of the upper surface portion 14a of the connector 14 in the ridge portion 16d is formed to have a size that fits into the groove portion 14b, and is wider than other portions. It has become. In addition, when the width dimension of the groove part 15h and the groove part 14b is comprised in the substantially same dimension, you may comprise all the magnitude | sizes (width dimension) of the lower end part of the said protrusion part 16d. The outer horizontal portion 16e is formed so as to extend horizontally outward from the ridge portion 16d.
[0030]
And the cover 16 which has each part of the shape as mentioned above is manufactured by performing the press work which consists of 4-5 processes, for example. Further, since the protrusion 16d and the outer horizontal portion 16e are formed on the flange 16b at the peripheral edge of the cover 16, the cover 16 is entirely formed while the cover 16 is formed of a thin plate material (thin iron plate). Can be made sufficiently high in rigidity (strength). This prevents the entire cover 16 from being warped or distorted.
[0031]
Here, an operation of attaching the printed wiring board 12 and the cover 16 to the case body 15 will be described. In this case, first, in the groove portion 15h of the flange portion 15g of the opening edge portion 15f of the case body 15, in the groove portion 15j of the bottom surface portion 15i of the connector opening portion 15e of the case body 15, and both sides of the connector opening portion 15e. A liquid sealing material 19 is applied (filled) onto the inner side surface portions 15k and 15l. At the same time, the liquid sealing material 19 is provided in the groove 14b of the upper surface portion 14a of the connector 14 of the printed wiring board 12, the left and right outer surface portions 14e and 14f of the connector 14, and the convex portion 14d of the lower surface portion 14c of the connector 14. Is applied (filled).
[0032]
Then, the printed wiring board 12 is fixed to the case main body 15 with screws 18 as described above. In this attached state, the outer surface portions 14e and 14f on both sides of the connector 14 and the inner surface portions 15k and 15l on both sides of the connector opening 15e of the case main body 15 and the lower surface portion 14c (projection of the connector 14). Portion 14d) and the bottom surface portion 15i (groove portion 15j) of the connector opening 15e of the case body 15 with the liquid sealing material 19 interposed therebetween, so that the above portions are sealed in a watertight manner. Yes.
[0033]
In this case, when the connector 14 is inserted into the connector opening 15e of the case main body 15 and assembled, if the accuracy of the assembly position of the connector 14 (that is, the printed wiring board 12) is low, the connector 14 becomes the connector opening. It may be assembled so as to be located at a position shifted laterally from the central portion (regular position) in 15e. In such a case, as shown in FIG. 1, either one of the outer side surface portions 14e and 14f of the connector 14 approaches one of the inner side surface portions 15k and 15l of the connector opening 15e. One of the outer side surface portions 14e and 14f of the fourteen contacts one of the projecting portion 15n of the inner side surface portions 15k and 15l of the connector opening 15e.
[0034]
Accordingly, a predetermined distance (for example, about 0.1 to 0.2 mm) between either one of the outer surface portions 14e and 14f of the connector 14 and one of the inner surface portions 15k and 15l of the connector opening 15e. A gap larger than the above gap can be secured between the other and the other. Therefore, since the liquid shield material 19 is filled in the gap between the outer side surface portions 14e and 14f of the connector 14 and the inner side surface portions 15k and 15l of the connector opening 15e, the gap can be reliably sealed. it can.
[0035]
Thereafter, the cover 16 closes the opening 15 a on the upper surface of the case body 15. Specifically, as shown in FIGS. 2, 6, and 7, the protrusion 16 d at the peripheral edge of the cover 16 is formed in the groove 15 h of the opening edge 15 f of the case body 15 and the upper surface 14 a of the connector 14. It fits into the groove 14b. Then, the screw 20 is inserted into the screw insertion holes formed at the four corners of the cover 16, and is fastened and fixed to the screw holes formed at the four corners of the opening edge 15f (the flange portion 15g) of the case body 15. . As a result, the cover 16 is attached and fixed to the case body 15.
[0036]
In this attached state, the protrusion 16d of the flange 16b of the cover 16 and the groove 15h of the flange 15g (opening edge 15f) of the case body 15 and the protrusion of the flange 16b of the cover 16 are provided. The liquid sealing material 19 is interposed between 16d and the groove portion 14b of the upper surface portion 14a of the connector 14, so that the above-described portions are sealed in a watertight manner. As a result, the case 13 of the ECU 11 becomes a housing having sufficient waterproof performance.
[0037]
According to the present embodiment having such a configuration, the protrusions (positioning portions) 15m and 15n are provided on the inner side surfaces 15k and 15l on both sides of the connector opening 15e of the case body 15, and the protrusions 15n Since the position of the connector 14 in the left-right direction within the connector opening 15e is determined, a predetermined gap is provided between the inner side surfaces 15k, 15l of the connector opening 15e and the outer side surfaces 14e, 14f of the connector 14. It can be surely secured.
[0038]
For this reason, even if the accuracy of the assembly position of the connector 14 on the production equipment (production line) side is low, the outer side surface portions 14e and 14f on both sides of the connector 14 and the inner side surface portions 15k on both sides of the connector opening 15e of the case body 15; A gap can be reliably ensured between 15 l. Therefore, the gap can be sufficiently sealed by filling the gap without filling the liquid sealing material 19.
[0039]
In the above embodiment, a connector opening 15e communicating with the opening 15a is provided in the side wall 15d of the case body 15, and the connector 14 of the printed wiring board 12 is fitted into the connector opening 15e from above. It was configured to make it. According to this configuration, both the process of attaching the printed wiring board 12 to the case body 15 and the process of attaching the cover 16 to the case body 15 can be executed by upward assembly, so that the assembly work can be automated.
[0040]
Further, in the above configuration, the left and right outer side surface portions 14e and 14f and the lower surface portion 14c (projection portion 14d thereof) of the connector 14, and the left and right inner side surface portions 15k and 15l and the bottom surface portion 15i of the connector opening 15e of the case body 15 By interposing the liquid sealing material 19 between each of the (groove portion 15j), each of the above is configured to be watertightly sealed. In addition, between the groove portion 14b of the upper surface portion 14a of the connector 14 and the protruding portion 16d of the flange portion 16b of the cover 16, the groove portion 15h of the flange portion 15g (opening edge portion 15f) of the case body 15; The liquid sealing material 19 is interposed between the flange 16b of the flange 16b of the cover 16 so as to seal the above watertightly. As a result, the case 13 having sufficient waterproof performance can be realized while the printed wiring board 12 (and the connector 14) can be assembled to the case main body 15 so as to be assembled upward.
[0041]
Further, in the above embodiment, since the flange portion 16b of the cover 16 is provided with the protruding portion 16d having a substantially U-shaped cross section, the cover 16 is formed of a thin plate material such as an iron plate, and the rigidity of the cover 16 as a whole. It is possible to reliably prevent the cover 16 from being warped or distorted. Thereby, the clearance gap between the cover 16 and the case main body 15 can be made uniform, and between the cover 16 and the case main body 15 can be sealed reliably.
[0042]
Furthermore, in the said Example, since the protrusion 16d of the flange part 16b of the cover 16 is the structure which contacts the liquid sealing material 19, the contact length with the liquid sealing material 19, ie, a seal length, becomes long, The sealing performance can be increased. Furthermore, in the above embodiment, the filling amount of the liquid sealing material 19 can be reduced by an amount corresponding to the cross-sectional area of the protruding portion 16d of the flange portion 16b of the cover 16.
[0043]
Moreover, in the said Example, since the cover 16 was formed by press-working a steel plate, compared with the case where a cover is formed by aluminum die casting, while being able to make a manufacturing cost cheap, weight can be lightened. it can.
[0044]
Furthermore, in the said Example, the wall part 15m was provided on the outer side of the groove part 15h in the flange part 15g (opening edge part 15f) of the case main body 15 at the standing | starting shape. For this reason, due to variations in the filling amount (application amount) of the liquid sealing material 19, the liquid sealing material 19 is removed from between the flange portion 15g of the case body 15 and the flange portion 16b of the cover 16 as shown in FIG. In the case where the liquid seal material 19 protrudes in the direction, the liquid sealing material 19 can be prevented from protruding by the wall portion 15m. Thereby, it can prevent that the liquid sealing material 19 hangs down on the outer surface of the side wall part of the case main body 15, and can improve the appearance of a product.
[0045]
Furthermore, in the above-described embodiment, the liquid sealing material 19 blocked by the wall portion 15m is attached to the upper side of the outer horizontal portion 16e of the flange portion 16b of the cover 16 by folding back against the wall portion 15m. For this reason, since the contact length with the liquid sealing material 19, that is, the seal length is further increased, the sealing performance can be further enhanced.
[0046]
In the above embodiment, the protrusion 15n is formed on the inner side surfaces 15k, 15l on both sides of the connector opening 15e so as to extend from the upper end to the lower end. However, the present invention is not limited to this. The length of 15n may be configured to be shorter, and a plurality of protrusions may be provided. Furthermore, instead of the ridge portion, a protrusion may be provided, and the number of protrusions may be one or plural.
[0047]
Further, in the above embodiment, the protrusion 15n (positioning portion) is provided on the inner side surface portions 15k and 15l on both sides of the connector opening 15e of the case body 15, but instead, the protrusion 15n (positioning portion) is provided. May be provided on the left and right outer surface portions 14e, 14f of the connector 14. In the case of this configuration, the inner side surfaces 15k and 15l on both sides of the connector opening 15e may be flat surfaces. Moreover, in this structure, you may comprise so that a groove part may be provided in the both sides of a protrusion part, the length of a protrusion part may be shortened, or a protrusion may be provided instead of a protrusion part.
[0048]
Furthermore, in the above embodiment, the cover 16 is formed of an iron plate. However, the present invention is not limited to this, and the cover 16 may be formed of another metal plate such as an aluminum plate or a stainless plate, or may be formed of plastic (resin). It may be composed of a material or may be composed of aluminum die casting.
[0049]
Moreover, in the said Example, although the wall part 15m was provided on the outer side of the groove part 15h in the flange part 15g of the case main body 15, you may comprise so that this wall part 15m may not be provided. In the case of this configuration, the function and effect of blocking the protruding liquid shield material 19 are lost, but the same function and effect as in the above embodiment can be obtained except for this.
[0050]
Further, in the above embodiment, the outer horizontal portion 16e is provided on the flange portion 16b of the cover 16 so as to extend outward from the protruding portion 16d. You may comprise so that only the U-shaped protrusion part 16d may be provided. Even in this configuration, the strength of the cover 16 can be sufficiently increased.
[0051]
Furthermore, in the above embodiment, the protrusion 16d is provided on the flange portion 16b of the cover 16, but the protrusion 16d may be omitted. In the case of this configuration, in order to increase the strength of the cover 16, it is necessary to increase the thickness of the plate material forming the cover 16 or to form the cover 16 by aluminum die casting, but the groove portion 15 h in the flange portion 15 g of the case body 15. By the wall portion 15m provided in a rising shape on the outside, an effect of blocking the protruding liquid shield material 19 can be obtained.
[0052]
FIG. 8 shows a second embodiment of the present invention, and different points from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. In the second embodiment, as shown in FIG. 8, grooves 15 o and 15 p are formed on both sides of the protrusion 15 n on the inner side surfaces 15 k and 15 l on both sides of the connector opening 15 e of the main body case 15. Stopped. Also in this configuration, a gap of a predetermined distance can be secured between the outer side surface portions 14e and 14f of the connector 14 and the inner side surface portions 15k and 15l of the connector opening 15e, so that the liquid sealing material 19 is filled in the gap. Can be held.
[0053]
The configuration of the second embodiment other than that described above is the same as that of the first embodiment. Therefore, in the second embodiment, substantially the same operational effects as in the first embodiment can be obtained.
[0054]
FIG. 9 shows a third embodiment of the present invention, and different points from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. In the third embodiment, as shown in FIG. 9, two inner surface portions 15k, 15l on both sides of the connector opening 15e of the main body case 15 are replaced with two protrusions 15n and grooves 15o, 15p. The ridges 15q and 15r are formed. In this case, the two protrusions 15q and 15r are formed so as to be oriented in the vertical direction on both sides of the inner side surfaces 15k and 15l.
[0055]
Also in the case of the above configuration, a gap of a predetermined distance can be reliably ensured between the outer side surfaces 14e and 14f of the connector 14 and the inner side surfaces 15k and 15l of the connector opening 15e. Can be filled and held.
[0056]
The configuration of the third embodiment other than that described above is the same as that of the first embodiment. Accordingly, in the third embodiment, substantially the same operational effects as in the first embodiment can be obtained.
[0057]
In each of the above embodiments, the present invention is applied to the case 13 of the ECU 11. However, the present invention is not limited to this, and may be applied to a case of another electronic control device that requires waterproof performance.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of the present invention, and is a cross-sectional view showing a state in which an outer surface portion of a connector has hit a protrusion on an inner surface portion of a connector opening of a case body
FIG. 2 is an exploded perspective view of an ECU.
FIG. 3 is a top view of the case body.
4 is a longitudinal sectional view taken along line IV-IV in FIG.
FIG. 5 is a partial perspective view showing the inner side surface of the connector opening of the case body.
FIG. 6 is a longitudinal sectional view of a portion where the flange portion of the cover is attached to the flange portion of the case body.
FIG. 7 is a longitudinal sectional view of a connector part of an ECU.
FIG. 8 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.
FIG. 9 is a view corresponding to FIG. 1, showing a third embodiment of the present invention.
10 is a view corresponding to FIG. 2 showing a conventional configuration.
11 is equivalent to FIG.
12 is a view corresponding to FIG. 1 in a state where the connector is assembled at the normal position.
13 is a view corresponding to FIG. 12 in a state where the connector is assembled with a slight shift from the normal position.
FIG. 14 is a view corresponding to FIG. 12 in a state where the connector is assembled with a considerable shift from the normal position.
[Explanation of symbols]
11 is an ECU (electronic control device), 12 is a printed wiring board (electronic circuit unit), 13 is a case, 14 is a connector, 14b is a groove, 14d is a convex portion, 14e and 14f are outer surface portions, 15 is a case body, 15a Is an opening for a connector, 15f is an opening edge, 15g is a flange, 15h is a groove, 15i is a bottom, 15j is a groove, 15k and 15l are inner surfaces, 15m is a wall, and 15n is a protrusion. Strips (positioning portions), 15o and 15p are groove portions, 16 is a cover, 16a is a bulging portion, 16b is a flange portion, 16d is a protruding strip portion, 16e is an outer horizontal portion, and 19 is a liquid sealing material.

Claims (5)

  1. A case main body having an opening on the top surface and containing an electronic circuit unit;
    A cover for closing the opening of the case body;
    A connector opening provided on the side wall of the case body so as to communicate with the opening; and a connector provided in the electronic circuit unit;
    Between the opening edge of the case body and the peripheral edge of the cover, between the upper surface of the connector and the peripheral edge of the cover, and between the inner surface of the connector opening and the outer surface of the connector A liquid sealing material that seals the gap,
    The position of the connector is provided at the intermediate portion of the side surface portion in the direction along the assembly direction when the connector is assembled to the case body, on the inner side surface portion on both sides of the connector opening or on the outer side surface portions on both sides of the connector. A case of an electronic control device comprising a protruding positioning portion that secures a predetermined gap between the inner side surface portion of the connector opening and the outer side surface portion of the connector.
  2. 2. The electronic device according to claim 1, wherein the positioning portion is constituted by a protruding portion provided on an inner side surface portion on both sides of the connector opening portion so as to extend along an assembly direction of the connector. Control equipment case.
  3. The case of the electronic control device according to claim 2 , wherein a portion of the outer surface portion of the connector that is in contact with the liquid sealing material is flat .
  4. The case of the electronic control device according to claim 3 , wherein the connector is configured to be assembled from above the connector opening .
  5. A case main body having an opening on the upper surface and accommodating an electronic circuit unit;
    A cover for closing the opening of the case body;
    A connector opening provided on the side wall of the case body so as to communicate with the opening; and a connector provided in the electronic circuit unit;
    Between the opening edge of the case body and the peripheral edge of the cover, between the upper surface of the connector and the peripheral edge of the cover, and between the inner surface of the connector opening and the outer surface of the connector A liquid sealing material that seals the gap,
    The connector opening is provided at an intermediate portion of a side surface portion in a direction along an assembly direction when the connector is assembled to the case body, on the inner side surface portions on both sides of the connector opening portion, and by determining the position of the connector. A protrusion-shaped positioning portion that secures a predetermined gap between the inner side surface portion of the portion and the outer side surface portion of the connector;
    A case of an electronic control device comprising: groove portions provided on both sides of the ridge-shaped positioning portion on inner side surface portions on both sides of the connector opening portion.
JP26415499A 1999-09-17 1999-09-17 Case of electronic control equipment Expired - Fee Related JP3669224B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26415499A JP3669224B2 (en) 1999-09-17 1999-09-17 Case of electronic control equipment

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP26415499A JP3669224B2 (en) 1999-09-17 1999-09-17 Case of electronic control equipment
DE10045728.2A DE10045728B4 (en) 1999-09-17 2000-09-15 Housing for an electronic control unit and arrangement of such a housing and an electronic circuit unit
US09/662,921 US6407925B1 (en) 1999-09-17 2000-09-15 Casing for electronic control devices
US10/132,297 US6707678B2 (en) 1999-09-17 2002-04-26 Casing for electronic control devices

Publications (2)

Publication Number Publication Date
JP2001085858A JP2001085858A (en) 2001-03-30
JP3669224B2 true JP3669224B2 (en) 2005-07-06

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JP4525489B2 (en) 2004-08-30 2010-08-18 株式会社デンソー Electronic control unit
JP4357504B2 (en) 2006-06-29 2009-11-04 株式会社日立製作所 Engine control device
JP4821504B2 (en) * 2006-08-24 2011-11-24 株式会社デンソー Manufacturing method of electronic device having three-dimensional seal structure and three-dimensional seal structure
JP4470980B2 (en) 2007-09-10 2010-06-02 株式会社デンソー Electronic equipment
US7616448B2 (en) * 2007-09-14 2009-11-10 Delphi Technologies, Inc. Wrap-around overmold for electronic assembly
JP4866830B2 (en) * 2007-11-09 2012-02-01 日立オートモティブシステムズ株式会社 Automotive electronics
JP4483960B2 (en) 2008-03-19 2010-06-16 株式会社デンソー Electronic equipment
JP4832469B2 (en) * 2008-06-04 2011-12-07 日立オートモティブシステムズ株式会社 Box-type electronic module
JP5042207B2 (en) * 2008-12-22 2012-10-03 日立オートモティブシステムズ株式会社 Box-type electronic module
JP5425555B2 (en) * 2009-07-31 2014-02-26 日立オートモティブシステムズ株式会社 Controller unit
JP5500681B2 (en) * 2010-03-26 2014-05-21 株式会社ケーヒン Electronic control unit
JP5350311B2 (en) * 2010-04-01 2013-11-27 日立オートモティブシステムズ株式会社 Automotive electronics
JP5374470B2 (en) * 2010-09-22 2013-12-25 日立オートモティブシステムズ株式会社 Electronic control unit
JP5474877B2 (en) 2011-06-17 2014-04-16 日立オートモティブシステムズ株式会社 Electronic control unit
JP5518020B2 (en) * 2011-09-13 2014-06-11 日立オートモティブシステムズ株式会社 Electronic control unit
JP5358639B2 (en) * 2011-09-21 2013-12-04 日立オートモティブシステムズ株式会社 Electronic controller seal structure
JP5905800B2 (en) * 2012-09-04 2016-04-20 日立オートモティブシステムズ株式会社 Electronic controller seal structure
JP2014212669A (en) * 2013-04-22 2014-11-13 三菱電機株式会社 Fully closed dynamo-electric machine and method of manufacturing fully closed dynamo-electric machine
JP6089992B2 (en) * 2013-06-17 2017-03-08 株式会社デンソー Electronic equipment
WO2015156370A1 (en) * 2014-04-11 2015-10-15 アイシン・エィ・ダブリュ株式会社 Electronic control device
JP6379204B2 (en) * 2014-08-29 2018-08-22 日立オートモティブシステムズ株式会社 Electronic control unit
EP3073810A1 (en) * 2015-03-26 2016-09-28 Continental Automotive GmbH Electronic control unit with a housing stabilizing element and housing for electronic control unit
JP6439572B2 (en) * 2015-04-28 2018-12-19 株式会社デンソー Electronic control device and driving device
JP6575347B2 (en) 2015-12-22 2019-09-18 株式会社デンソー Electronic equipment

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