JP2014192962A - Electronic controller for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic controller for a vehicle capable of suppressing manufacturing cost by discriminating destinations by not relying only on visual inspection even when the electronic controller for a vehicle is standardized.SOLUTION: An electronic controller 1 for a vehicle includes: a printed board 3 on which at least an external connector is mounted; and a case 4 that houses the printed board 3. A key part K is provided on a mounting surface of the case 4.

Description

  The present invention relates to an electronic control device for a vehicle, and more particularly to an electronic control device for a vehicle having a case in which a board on which a connector or the like is mounted is accommodated.

  In recent years, in an electronic control device for a vehicle used in a vehicle such as a motorcycle or an automobile, in order to efficiently connect a power line or a signal line, a connector is mounted on a substrate on which a semiconductor element or the like is mounted, In order to prevent unnecessary intrusion of moisture, dust, and the like, a configuration has been proposed in which a case is accommodated while being filled with resin.

  Further, in such an electronic control device for a vehicle, there is a technology for standardizing the size of the printed circuit board and the case for accommodating the printed circuit board so as to correspond to various destinations in order to reduce the manufacturing cost such as the design cost and the mold cost. Proposed.

  Under such circumstances, Patent Document 1 relates to a housing structure of an electronic control device, and includes a locking member for locking a printed circuit board of a case that can correspond to various printed circuit board sizes. It is disclosed as one technique for standardizing.

  Patent document 2 relates to an electronic control device, and discloses a configuration in which a printed circuit board is housed in a case and resin is filled in the case as an electronic control device for a motorcycle.

JP-A-11-284375 JP 2011-70853 A

  However, according to the study by the present inventor, recently, in order to further reduce the cost, standardization of the printed circuit board size and the external connector has begun beyond the configuration disclosed in Patent Document 1.

  Here, according to a further examination by the present inventor, when the external connector and the case are standardized, that is, shared in the electronic control device for a vehicle as disclosed in Patent Document 2, these distinctions are completely different in appearance. become unable.

  For example, whether it is an electronic control device for a vehicle in which a printed circuit board having a specification for destination A is accommodated or an electronic control device for a vehicle in which a printed circuit board having a specification for destination B is accommodated is distinguished between these, It will not work at all.

  Therefore, in such a case, in order to distinguish between the vehicle electronic control device for destination A and the vehicle electronic control device for destination B, marks indicating the respective destinations are engraved on those cases. It is necessary to do.

However, according to the study of the present inventor, since the operator discriminates these marks only by fine visual inspection, in the unlikely event that a human error occurs, the electronic control device for the vehicle for the destination A is set to the destination B. As a vehicular electronic control device, there is no doubt that the vehicle will be shipped as it is, and there is room for improvement.

  The present invention has been made in view of such circumstances, and even when the electronic control device for a vehicle is standardized, the determination of the destination can be made without relying only on fine visual observation, and the manufacturing cost can be reduced. An object of the present invention is to provide a vehicle electronic control device that can be suppressed.

  In order to achieve the above object, the present invention provides a vehicle electronic control device comprising at least a printed circuit board on which an external connector is mounted and a case for housing the printed circuit board. It is set as the 1st situation that it is an electronic control device for vehicles provided with.

  According to the present invention, in addition to the first aspect, the key portion is provided on a placement surface of a pallet on which the vehicle electronic control device is placed during factory inspection of the vehicle electronic control device. The second aspect is to be formed so as to match the keyway.

  According to the third aspect of the present invention, in addition to the first or second aspect, the case has a bag structure, and the key portion is formed at an opening end of the bag structure of the case. Let's say that.

  According to the first aspect of the present invention, a printed circuit board on which at least an external connector is mounted and a case that accommodates the printed circuit board are provided, and a key portion is provided on the mounting surface of the case, so that, for example, at the time of manufacture. In addition, when the vehicle electronic control device is placed on the pallet, if the key portion of the placement surface of the vehicle electronic control device matches the key groove of the pallet, the placement surface of the vehicle electronic control device Is placed without inclining with respect to the placement surface of the pallet, simply placing the vehicle electronic control device on the corresponding pallet to determine whether the destination matches the predetermined one Even when the vehicle electronic control device is standardized, it is possible to discriminate the destination without relying only on fine visual observation, and to suppress the manufacturing cost.

  According to the second aspect of the present invention, the key portion matches the key groove provided on the mounting surface of the pallet on which the vehicle electronic control device is mounted during the factory inspection of the vehicle electronic control device. With this configuration, the vehicle electronic control device is mounted without tilting at the time of inspection before shipment, so that the inspection connector and the external connector can be fitted with each other. It can be determined that it matches the object.

  According to the third aspect of the present invention, the case has a bag structure, and the key portion is formed at the open end of the bag structure of the case. The key portion can be formed without complicating the process, and the workability of demolding at the time of molding can be performed without being deteriorated. Furthermore, by forming the key portion at the opening end of the case, it is possible to reinforce the opening end of the case, so that unnecessary deflection of the opening peripheral portion of the case can be reduced.

It is a figure which shows the case of the electronic controller for vehicles in embodiment of this invention, Comprising: Fig.1 (a) to FIG.1 (c) is respectively downward from the upper direction of the case of the electronic controller for vehicles in this embodiment. FIG. 1 (d) to FIG. 1 (f) are respectively a comparative example in the present embodiment. They are the perspective view which looked at the downward direction from the upper direction of the case of the electronic control apparatus for vehicles of the above, the perspective view which looked upward from the downward direction of the case, and the side view of the case. FIG. 2A is a diagram illustrating a state of the vehicle electronic control device at the time of inspection according to the present embodiment, and FIG. 2A is a diagram illustrating a state of the vehicle electronic control device when the assembly at the time of inspection is normal. In addition, FIG. 2B is a diagram showing a state of the vehicle electronic control device when the assembly at the time of inspection is not normal. It is a figure which shows the component combination pattern of the electronic control apparatus for vehicles in this embodiment, and the state of the electronic control apparatus for vehicles at the time of the test | inspection corresponding to it. FIG. 4A is a perspective view showing a vehicle electronic control device according to this embodiment, and FIG. 4A is a perspective view showing a vehicle electronic control device according to a comparative example according to this embodiment. FIG. 4D is a perspective view showing a key part of a case of the vehicle electronic control device including various modifications in the present embodiment.

  Hereinafter, an electronic control device for a vehicle according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate.

  FIG. 1 is a diagram illustrating a case of a vehicle electronic control device according to the present embodiment. FIGS. 1A to 1C are respectively above the case of the vehicle electronic control device according to the present embodiment. FIG. 1 (d) to FIG. 1 (f) are respectively a perspective view of the case viewed from below, a perspective view of the case viewed from above and a side view of the case. It is the perspective view which looked at the downward direction from the upper direction of the case of the electronic control apparatus for vehicles of a comparative example, the perspective view which looked upward from the downward direction of the case, and the side view of the case. FIG. 2 is a diagram illustrating a state of the vehicle electronic control device at the time of inspection according to the present embodiment, and FIG. 2A illustrates a state of the vehicle electronic control device when the assembly at the time of inspection is normal. FIG. 2B is a diagram showing a state of the vehicle electronic control device when the assembly at the time of inspection is not regular. FIG. 3 is a diagram illustrating a component combination pattern of the vehicle electronic control device according to the present embodiment and a state of the vehicle electronic control device at the time of inspection corresponding thereto. FIG. 4 is a perspective view showing the vehicle electronic control device according to the present embodiment, and FIG. 4A is a perspective view showing the vehicle electronic control device of the comparative example according to the present embodiment. 4 (b) to 4 (d) are perspective views showing the vehicle electronic control device including various modifications of the key portion in the present embodiment.

  As shown in FIGS. 1 to 4, the vehicle electronic control device 1 in the present embodiment is typically an ECU (Electronic Control Unit), and has a connector 2 that is electrically connected to the other external device side. A printed circuit board 3 on which the connector 2 is mounted, and a case 4 for receiving and fixing the connector 2 in a state in which the connector 2 is mounted on the printed circuit board 3.

  Specifically, the connector 2 can be mounted on the printed circuit board 3 in a state where the terminals 30 are mounted on a resin housing 10 typically. The housing 10 of the connector 2 includes an insertion recess 10a into which a mating connector connected to an external device (not shown) can be inserted.

  The printed board 3 is mounted with a connector 2 and a semiconductor element (not shown), and is typically a printed wiring board made of glass epoxy resin.

  Here, in particular, as shown in FIGS. 1A to 1C, the case 4 is typically made of resin, and includes a bottom wall 20 and an upper wall 22 facing the bottom wall 20. A pair of side walls 24 and 25 that connect the bottom wall 20 and the top wall 22 to face each other are provided, and the storage chamber 26 is defined by these. One end side of the storage chamber 26 is closed by the rear wall 27 of the case 4, while the other end side of the storage chamber 26 forms an opening that opens to the outside of the case 4, and has the storage chamber 26. The case 4 has a so-called bag structure.

  The printed circuit board 3 on which the connector 2 and the semiconductor device are mounted is accommodated and fixed in the housing chamber 26 of the case 4, but the size of the connector 2 is larger than the size of the semiconductor device or the like. Correspondingly, the upper wall 22 is further separated from the bottom wall 20 on the opening side of the housing chamber 26 of the case 4, and the upper wall 22 typically exhibits a stepped shape.

  The lower wall surface of the bottom wall 20 of the case 4 (the lower side means, for example, the lower side in FIGS. 1A and 1C) is mounted on the pallet 42 of the inspection apparatus 40 described later in detail. This is the placement surface of the case 4 to be placed. On the mounting surface of the case 4, a key portion K which is a convex portion projecting downward is integrally provided as a part of the case 4.

  Further, in the case 4, the resin M is filled in the accommodation chamber 26 that accommodates the connector 2, the semiconductor device, and the like mounted on the printed circuit board 3, and unnecessary moisture, dust, or the like does not enter the accommodation chamber 26. It is sealed as follows.

  On the other hand, the specification of the vehicle electronic control device 100 of the comparative example in the present embodiment is different from that of the vehicle electronic control device 1 in the present embodiment due to the difference in the destination.

  Specifically, the vehicle electronic control device 100 according to the comparative example in the present embodiment includes a printed circuit board 103 on which a semiconductor element and the like having different specifications are mounted, and a key unit, as compared with the vehicle electronic control device 1 in the present embodiment. Only the configuration of the case 104 that does not have a difference is different, and the remaining configuration is the same. However, the printed circuit board 103 of the vehicle electronic control device 100 of the comparative example in the embodiment and the printed circuit board 3 of the vehicle electronic control device 1 of the embodiment have the same size and the like, and these are shared. It can be attached to either the case 4 or the case 104 in a state where the connector 2 or the semiconductor element having different specifications is mounted.

In particular, as shown in FIG. 1D to FIG. 1F, the case 104 of the vehicle electronic control device 100 of the comparative example in the present embodiment is not provided with a key portion, and the case 104 The wall surface on the lower side of the bottom wall 20, which is the mounting surface, is merely a flat surface.

  Now, before the vehicle electronic control apparatus 1 in this embodiment is shipped from the factory, it is necessary to undergo a pre-shipment inspection in the factory.

  Specifically, as shown in FIGS. 2A and 2B, in the inspection process before factory shipment, the vehicle electronic control device is placed on the pallet 42 of the inspection device 40 or the pallet 142 of the inspection device 140. 1 is mounted, the inspection connector 44 of the inspection device 40 or 140 is connected thereto, and the electrical function inspection of the vehicle electronic control device 1 is performed.

  Here, in the vehicle electronic control device 1 according to the present embodiment, since the key portion K is provided on the placement surface of the case 4, the case 4 is placed on the pallet of the inspection device that matches the key portion K. Only in the case of a normal inspection posture, it is possible to perform an electrical inspection prior to factory shipment.

For example, as shown in FIG. 2A, when the vehicle electronic control device 1 in this embodiment is sent to an inspection device 40 in which a keyway 42a is provided on the mounting surface of the pallet 42, the case 4 key portion K matches the key groove 42a of the pallet 42 so that it can enter the key groove 42a. With this, the inspection connector 44 can enter the insertion recess 10a of the connector 2, A terminal (not shown) of the inspection connector 44 is electrically connected to the terminal 30 of the connector 2, and the vehicle electronic control device 1 can perform an electrical inspection before factory shipment.

  On the other hand, as shown in FIG. 2B, when the vehicle electronic control device 1 in this embodiment is sent to the inspection device 140 in which the mounting surface of the pallet 142 is simply a flat surface, the case 4 The key portion K of the vehicle rides on the mounting surface of the pallet 142, and the inspection connector 44 cannot enter the insertion recess 10a of the connector 2, so that the vehicular electronic control unit 1 is electrically connected before factory shipment. It is impossible to perform a proper inspection.

  A typical example in which such a state shown in FIG. 2B is generated is the vehicle electronic control device according to the present embodiment compared to the printed circuit board 103 used in the vehicle electronic control device 100 of the comparative example according to the present embodiment. This is a case where the case 4 used in 1 is mistakenly combined and sent to the inspection device 140 used in the vehicle electronic control device 100 of the comparative example in the present embodiment.

  Here, with reference to FIG. 3, the inspection process before factory shipment in the vehicle electronic control device 1 in the present embodiment and the vehicle electronic control device 100 in the comparative example in the present embodiment will be described in more detail. For convenience of explanation, an inspection process in which the vehicle electronic control device 1 according to the present embodiment is assembled and sent to the inspection apparatus 40 including the pallet 42 and the inspection connector 44 is referred to as a first inspection process, and the present embodiment. The inspection process in which the vehicle electronic control device 100 of the comparative example in FIG. 1 is assembled and sent to the inspection device 140 including the pallet 142 and the inspection connector 44 is referred to as a second inspection step. Further, the first inspection process corresponds to the first specification that the printed circuit board 3 or the like has a predetermined specification, and the inspection device 40 inspects the electrical characteristics and the like of the first specification. The second inspection step corresponds to the second specification, which is another predetermined specification for the printed circuit board 103 and the like, and the inspection device 140 inspects the electrical characteristics and the like of the second specification. And

  First, FIG. 3A shows an inspection apparatus in a state (state X1Y1) in which the printed circuit board 103 (state X1) on which the connector 2 and the like are mounted is housed and fixed in the case 104 (state Y1) in the second inspection step. 140, in this case, since the vehicle electronic control device 100 of the comparative example in the present embodiment is assembled in a normal state, its posture on the pallet 142 is normal horizontal. It becomes a state. Therefore, the operator in this inspection process can clearly confirm in its posture that the vehicle electronic control device 100 of the comparative example in the present embodiment is assembled in a normal state (state OK). The connector 2 is mounted on the inspection connector 44 and electrically connected to perform necessary electrical function inspection.

  Next, FIG. 3B shows a state (state X1Y2) in which the printed circuit board 103 (state X1) on which the connector 2 and the like are mounted is erroneously accommodated and fixed in the case 4 (state Y2) in the second inspection step. In this case, the vehicle electronic control device 100 of the comparative example in the present embodiment is not assembled in a regular state, and the case 4 is mounted on the mounting surface of the case 4. Since it has the key part K, its posture on the pallet 142 becomes an irregular state in which the connector 2 side is raised. Therefore, the worker in this inspection process can clearly confirm from the posture that the vehicle electronic control device 100 of the comparative example in the present embodiment is not assembled in a normal state (state NG), and the book The vehicle electronic control device 100 of the comparative example in the embodiment can be excluded as a defective product.

Next, FIG. 3C shows a state (state X2Y2) in which the printed board 3 (state X2) on which the connector 2 and the like are mounted is accommodated and fixed in the case 4 (state Y2) in the first inspection step. In this case, the vehicle electronic control device 1 according to the present embodiment is assembled in a proper state, so that the key portion provided on the mounting surface of the case 4 is equivalent to the case of being sent to the device 40. K enters and is accommodated in a keyway 42a provided in the pallet 42, and its posture on the pallet 42 becomes a normal horizontal state. Therefore, the operator in this inspection process can clearly confirm in its posture that the vehicle electronic control device 1 in the present embodiment is assembled in a normal state (state OK), and then connect the connector 2. It is mounted on the inspection connector 44 and electrically connected to perform necessary electrical function inspection.

  3D shows a state (state X2Y1) in which the printed circuit board 3 (state X2) on which the connector 2 and the like are mounted is erroneously accommodated and fixed in the case 104 (state Y1) in the first inspection step. In this case, the vehicle electronic control device 1 in the present embodiment is not assembled in a normal state, and the key portion K is placed on the mounting surface of the case 104. Since it does not have, the posture on the pallet 42 is in an irregular state where the connector 2 side is lowered. Therefore, the worker in this inspection process can clearly confirm from the posture that the vehicle electronic control device 1 in the present embodiment is not assembled in a normal state (state NG). The vehicle electronic control device 1 can be excluded as a defective product.

  As described above, in the vehicle electronic control device 1 according to the present embodiment, the key portion K provided on the mounting surface of the case 4 allows the posture on the pallet 42 to be in accordance with whether the assembled state is normal or irregular. It is not necessary to provide the key groove 42a in the pallet 42 because it changes and can be visually recognized by the operator. However, when the key groove 42a is provided, the posture of the case 4 becomes horizontal. Therefore, the operation of mounting the connector 2 on the inspection connector 44 becomes easier and more preferable.

  As described above, the vehicle electronic control device 1 according to the present embodiment has a configuration in which the key portion K is provided on the mounting surface of the case 4, and the key portion K has various modifications. Can be considered.

  First, in the vehicle electronic control device 100 of the comparative example in the present embodiment shown in FIG. 4A, no key portion is provided, whereas in the vehicle in the present embodiment shown in FIG. 4B. In the electronic control device 1, a key portion K, which is a convex portion projecting downward from the mounting surface of the case 4, is provided as a part of the case 4 and integrally therewith in the width direction. ing.

  Further, in the configuration example of the vehicle electronic control device 1 according to the present embodiment shown in FIG. 4C, the key portion K1, which is a convex portion projecting downward from the mounting surface of the case 4, is provided on the case. As a part of 4, it is integrally provided at the left end portion thereof.

  Further, in the configuration example of the vehicle electronic control device 1 in the present embodiment shown in FIG. 4D, the key portion K2, which is a convex portion projecting downward from the mounting surface of the case 4, is provided on the case. As a part of 4, it is integrally provided at the right end portion thereof.

  And in the structural example of the vehicle electronic control apparatus 1 in this embodiment shown in FIG.4 (e), the key part K3 which is a convex part projected on the mounting surface of the case 4 from the case below is the case. As a part of 4, it is provided integrally with the central portion in the width direction.

  As described above, in the configuration example of the vehicle electronic control device 1 in the present embodiment, the key portion K provided on the mounting surface of the case 4 can take various forms, but when the resin case 4 is molded, Taking into account the convenience and moldability of mold splitting and the reinforcement of the case 4, on the mounting surface of the case 4, the end on the opening side of the storage chamber 26 (for example, the lower left end in FIG. 1C). It is preferable to be provided correspondingly.

  In the configuration of the vehicular electronic control device 1 according to the present embodiment, a key portion K that is a convex portion projecting downward from the mounting surface of the case 4 is integrated with the case 4 as a part thereof. However, if necessary, the key portion K can be separated and joined to the mounting surface of the case 4.

  Further, the shape of the longitudinal section of the key portion K is not limited to a rectangular shape, but may be other shapes such as a triangular shape or a semicircular shape.

  Further, in the vehicle electronic control device 1 in this embodiment and the vehicle electronic control device 100 in the comparative example, the connector 2 is completely shared. It is also possible to make changes such as changing the arrangement of the terminals according to the specifications while keeping the common.

  Further, the configuration of the inspection connector 44 may be changed in the inspection device 40 and the inspection device 140 in order to perform the inspection according to the specification within the range matching the connector 2.

  According to the above configuration, the printed circuit board 3 on which at least the external connector is mounted and the case 4 that accommodates the printed circuit board 3 are provided, and the key portion K is provided on the mounting surface of the case 4. For example, when the vehicle electronic control device 1 is placed on the pallet 42, if the key portion K of the placement surface of the vehicle electronic control device 1 and the key groove 42a of the pallet 42 coincide, Since the mounting surface of the electronic control device 1 is mounted without inclining with respect to the mounting surface of the pallet 42, simply placing the vehicle electronic control device 1 on the corresponding pallet 42 can be directed to the mounting surface. Even if the vehicle electronic control device 1 is standardized, it is possible to determine whether or not the vehicle is in conformity with the predetermined one, and it is possible to discriminate the destination without only fine visual inspection, and the manufacturing cost thereof. Can be suppressed That.

  Further, the key portion K is formed to match the key groove 42a provided on the mounting surface of the pallet 42 on which the vehicle electronic control device 1 is mounted at the time of factory inspection of the vehicle electronic control device 1. As a result, since the vehicle electronic control device 1 is mounted without being inclined at the time of inspection before shipment, the inspection connector 44 and the external connector 2 can be fitted with each other. Can be determined.

  Further, since the case 4 forms a bag structure and the key portion K is formed at the opening end of the bag structure of the case 4, the mold for molding the case 4 is complicated. The key portion K can be formed without any deterioration, and the workability of demolding at the time of molding can be performed without being deteriorated. Furthermore, by forming the key portion K at the opening end of the case 4, it is possible to reinforce the opening end of the case 4, thereby reducing unnecessary bending of the periphery of the opening of the case 4. .

  In the present invention, the type, arrangement, number, and the like of the members are not limited to the above-described embodiments, and the constituent elements thereof are appropriately replaced with those having the same operational effects, and the gist of the invention is not deviated. Of course, it can be appropriately changed within the range.

  As described above, according to the present invention, even when the vehicle electronic control device is standardized, it is possible to determine the destination without relying only on fine visual observation, and to suppress the manufacturing cost. It is expected that the present invention can be widely applied to electronic control devices used in vehicles and the like because of its universality.

DESCRIPTION OF SYMBOLS 1 ... Electronic control apparatus for vehicles 2 ... Connector 3 ... Printed circuit board 4 ... Case 10 ... Housing 10a ... Insertion recessed part 20 ... Bottom wall 22 ... Upper wall 24, 25 ... Side wall 26 ... Storage chamber 27 ... Rear wall 30 ... Terminal 40 ... Inspection device 42 ... Pallet 42a ... Key groove 44 ... Inspection connector 100 ... Vehicle electronic control device 103 ... Printed circuit board 104 ... Case 140 ... Inspection device 142 ... Palette K, K1, K2, K3 ... Key part M ... Resin

Claims (3)

In a vehicle electronic control device comprising at least a printed circuit board on which an external connector is mounted, and a case for housing the printed circuit board,
A vehicle electronic control device, wherein a key portion is provided on a mounting surface of the case.   The key portion is formed so as to match a key groove provided on a mounting surface of a pallet on which the vehicle electronic control device is mounted during a factory inspection of the vehicle electronic control device. The vehicular electronic control device according to claim 1.   The vehicle electronic control device according to claim 1, wherein the case has a bag structure, and the key portion is formed at an opening end of the bag structure of the case.

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