JP2011063124A - Electric control equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent water droplets from entering into the interior of an outer casing without increasing the dimension of the entire electric control equipment. <P>SOLUTION: A car navigation device 1 is installed in a rearward downward inclined state in a vehicle. The upper surface plate 5 of the outer casing 3 is in a rectangular shape when viewed from above, and is formed into a nonporous state. Recess-shaped upper gutter sections 11, 12, and 13 are respectively formed in three side edges except for the side edge located on the side of a control panel 4 on the upper surface plate 5. Downward extended recess-shaped longitudinal gutter sections 14 and 15 connected to the upper gutter sections 11, 12, and 13 are formed on the rear surface plate 8 of the outer casing 3. Ventilation holes 6e are formed in the parts of the outer casing 3 other than the operation panel 4 and the upper surface plate 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electric control device provided in an automobile interior and having an outer casing with a waterproof structure.

  In an automobile, various electric control devices are provided indoors (including the inside of the instrument panel, and the engine room is outdoor). For example, a car navigation device is provided on the instrument panel. This car navigation apparatus is configured by housing a required electronic circuit board or the like in a rectangular box-shaped outer casing. The outer casing is configured with an operation panel on the front surface, and the upper surface portion, the left and right surface portions, and the bottom surface portion are configured by appropriately joining metal plates, and a large number of ventilation holes are formed on each surface portion except for the operation panel. ing.

Japanese Patent No. 3792412

  The conventional car navigation apparatus has an air-conditioner outlet in the vicinity thereof, and condensation may occur inside the instrument panel, and the condensed water may fall onto the upper surface of the apparatus case. In particular, during the rainy season or in the summer, when the vehicle window is slightly cooled and the air conditioner is applied, condensation is likely to occur inside the instrument panel, and condensation water falls on the upper surface of the device case and the vent The control board inside the device may get wet.

  In addition, although the said patent document 1 describes the technique which ensures waterproofness and air permeability by covering the engine control module as an electric control apparatus entirely with an apparatus case different from this module, in this, it is large sized. Become. For example, when the size of the insertion assembly to the instrument panel (the shape seen from the front) is standardized to some extent as in the car navigation device, the installation location of the instrument panel (the location where the car navigation device is fitted) ) Is often standardized, and the technique of the above-mentioned Patent Document 1 that increases the size of the whole cannot be adopted. Furthermore, if the technique of the above-mentioned patent document 1 is adopted for an electric control device having an operation panel on the front surface, the operation panel is covered and cannot be actually used. This point is also described in the above-mentioned patent document 1. Technology cannot be adopted.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an electric control device capable of preventing water droplets from entering the outer casing without increasing the size of the entire electric control device. is there.

  The electric control device according to claim 1 is an electric control device which is configured to include an electric control unit in a rectangular box-like outer casing having an operation panel on the front surface portion, and is installed in a rearwardly inclined state on the vehicle. The upper surface portion of the outer casing having a rectangular shape in plan view is configured to be non-hole-shaped, and the upper casing has a concave shape in three edge portions except for the edge portion on the operation panel side. Forming a concave vertical hook portion that hangs down from the upper flange portion on the rear surface portion of the outer casing, and has a vent hole in the outer casing other than the operation panel and the upper surface portion. Forming.

  According to this, since the water droplets dropped on the upper surface portion of the outer casing are in a configuration in which the entire electric control device is rearwardly lowered, the upper surface portion is also inclined downwardly and is non-porous. Water droplets flow down to the upper collar of the rear side without entering the outer casing. Moreover, although it is assumed that a water droplet goes from this upper surface part to a left-right surface part, this water droplet flows in into the said left and right upper collar part. The water (water droplets) that has flown into these upper collar parts flows out of the vertical collar part to the outside of the electric control device. Accordingly, the water droplets dropped on the upper surface portion are guided to the outside without passing through the left and right surface portions and the rear surface portion, and the electric control unit inside the outer casing is prevented from getting wet. And since the ventilation hole is provided in parts other than the said operation panel and the said upper surface part in an outer casing, cooling property can also be maintained favorable. Further, since the outer casing itself is formed with a concave upper collar portion and a vertical collar portion, the outer casing itself does not increase to the outside, and thus the electric control device provided in the vehicle in a downwardly inclined manner. In this case, it is possible to prevent water droplets from entering the outer casing without increasing the size of the entire electric control device.

  According to a second aspect of the present invention, there is provided the electrical control device according to the first aspect, wherein a concave groove-shaped portion is formed on the upper surface portion of the outer casing so as to extend in the front-rear direction and communicates with the upper collar portion. Have

According to this, the water droplet dripped on the upper surface portion does not go to the left and right surface portions, and flows down along the groove-like portion as it is, thereby preventing the water droplet from diffusing.
According to a third aspect of the present invention, there is provided the electric control device according to the first aspect, wherein a concave groove-shaped portion is formed on the upper surface of the outer casing so as to extend obliquely with respect to the front-rear direction, and communicates with the upper collar portion. It is characterized by

According to this, it becomes possible to weaken the water force of the water droplet dripped on the upper surface portion.
According to a fourth aspect of the present invention, there is provided an electric control device including an electric control unit provided in an outer casing having a rectangular box shape having an operation panel on a front surface portion and installed in a substantially horizontal state on a vehicle. The upper surface portion of the outer casing having a rectangular shape in a plan view is configured to be non-hole-shaped, and the upper surface portion is configured to be inclined downwardly from the rear, and further, the upper panel has a side on the operation panel side. A concave upper collar portion is formed on the rear surface portion of the outer casing, and a concave vertical collar portion is formed on the rear surface portion of the outer casing. A feature is that a vent hole is formed in a portion other than the operation panel and the upper surface portion.

  According to this, although the electric control device is in a substantially horizontal installation state, since the upper surface portion is inclined downward and is non-porous, water drops dropped on the upper surface portion of the outer casing are the same as in the first aspect. Then, water droplets flow down from the upper surface portion to the upper side of the rear side without entering the outer casing. Moreover, although it is assumed that a water droplet goes from this upper surface part to a left-right surface part, this water droplet flows in into the said left and right upper collar part. The water (water droplets) that has flown into these upper collar parts flows out of the vertical collar part to the outside of the electric control device. Accordingly, the water droplets dropped on the upper surface portion are guided to the outside without passing through the left and right surface portions and the rear surface portion, and the electric control portion inside the outer casing is prevented from getting wet. And since the ventilation hole is provided in parts other than the said operation panel and the said upper surface part in an outer casing, cooling property can also be maintained favorable. Furthermore, since the outer casing itself is a configuration in which a concave upper collar portion and a vertical collar portion are formed, the outer casing itself does not increase to the outside, and therefore, in an electric control device provided almost horizontally on the vehicle, Water droplets can be prevented from entering the outer casing without increasing the overall size of the electric control device.

  The electric control device according to claim 5 is characterized in that, in claim 4, the upper surface portion of the upper surface portion rises in the front-rear direction and is inclined downward from the intermediate portion to the left edge portion and the right edge portion. Have.

According to this, water droplets dropped on the upper surface portion of the outer casing can be quickly directed to the left and right upper collar portions while being directed rearward, and the retention of water droplets can be prevented.
The electrical control device according to claim 6 is the electrical control device according to claim 4, wherein the upper surface portion is inclined downward in a diagonal direction, and the vertical flange portion communicates with an upper flange portion existing in the diagonal direction. It has the characteristics. According to this, it is possible to make the water drop dripped on the upper surface part flow down from one vertical hook part communicating with the upper hook part existing in the diagonal direction, and specify the water flow down part as one, Drainage route setting from electric control equipment becomes easy.

1 shows a first embodiment in which the present invention is applied to a car navigation device, and is a perspective view seen from the rear of the entire car navigation device. The perspective view which isolate | separates and shows a back surface board and a bottom face board in the state which integrated the upper surface board and the right-and-left side board. Top view of the entire car navigation system Sectional view taken along line AA in FIG. Sectional drawing in the BB line of FIG. Longitudinal side view schematically showing the installation state of the car navigation device FIG. 1 equivalent diagram showing a second embodiment of the present invention FIG. 1 equivalent view showing a third embodiment of the present invention FIG. 6 equivalent view showing the fourth embodiment of the present invention 1 equivalent diagram 2 equivalent diagram Side view FIG. 1 equivalent view showing a fifth embodiment of the present invention FIG. 1 equivalent view showing a sixth embodiment of the present invention

  Hereinafter, a first embodiment in which the present invention is applied to a car navigation apparatus will be described with reference to FIGS. FIG. 6 shows an installation state of the car navigation device 1 corresponding to the electric control device. This car navigation device 1 is assembled in a vehicle body instrument panel 2 so as to be tilted backward and inclined. The outer casing 3 of the car navigation device 1 has a rectangular box shape and has a width W shown in FIG. Is standardized, and the height dimension H is set to one of a plurality of standard dimensions. The depth dimension is not standardized and is set as appropriate. Of the outer casing 3, the front surface of the operation panel 4 constituting the front portion is exposed to the outer surface of the instrument panel 2.

  As is well known, the instrument panel 2 is provided with an air-conditioner outlet or the like. The instrument panel 2 is in a vehicle interior, and it is not necessary to pay attention to rain water as a waterproof measure for the car navigation device 1, and as a waterproof measure, a measure against waterproof against condensation water when the air conditioner is used. To do.

  As shown in FIGS. 1 and 2, the outer casing 3 is configured by the operation panel 4 as described above, the upper surface is configured by the upper surface plate 5, and the left surface (left when viewed from the front) is the left side. It is composed of a face plate 6, a right surface portion (right when viewed from the front) is composed of a right side surface plate 7, a rear surface portion is composed of a rear surface plate 8, and a bottom surface portion is composed of a bottom surface plate 9. The operation panel 4 and each of the plates 5 to 9 constitute the outer casing 3 by being appropriately screwed with a screw 10 as described above. The rear plate 8 is provided with a plurality of connectors 16 connected to external cables (not shown).

  The upper surface plate 5 is formed in a non-porous shape. Further, the upper surface plate 5 has three edge portions other than the edge portion on the operation panel 4 side in FIGS. 3, 4 and 5. As shown in FIG. 2, the upper collar parts 11, 12, and 13 having a concave shape are formed. The left upper collar portion 11 is formed at the left edge of the upper surface plate 5, and a flat flange portion having a plurality of screw insertion holes (not shown) on the left side of the left upper collar portion 11. 5a is formed. The right upper collar portion 12 is formed at the right edge of the upper surface plate 5, and a flat surface having a plurality of screw insertion holes (not shown) on the right side of the right upper collar portion 12. A flange portion 5b is formed. Furthermore, a hanging flange portion 5 c having a plurality of screw holes 5 n is formed at the front edge portion of the upper surface plate 5.

  The rear upper collar portion 13 is formed at the rear edge of the upper surface plate 5, and the rising portion 13 k at the rear end of the upper collar portion 13 is located at a position higher than the bottom portion of the upper collar portion 13. A plurality of screw holes 5n are formed.

  Since the left side plate 6 and the right side plate 7 are symmetrical, the left side plate 6 will be described as a representative. Flange portions 6 a, 6 b, 6 c, 6 d projecting inward are formed on the upper and lower front and rear edges of the left side plate 6 having a substantially vertical plate shape, and a large number of vent holes 6 e are formed on almost the entire left side plate 6. Is formed. Each of the flange portions 6a, 6b, 6c, and 6d has a plurality of screw holes 6n (the screw holes of the upper flange portion 6a are not shown). In the right side plate 7, the same parts as those of the left side plate 6 are denoted by the same subscripts.

  As shown in FIG. 2 and FIG. 3, concave vertical flange portions 14 and 15 that hang down from the upper flange portions 11, 12, and 13 are formed on the left and right edges of the rear plate 8. In this case, the left vertical collar 14 communicates with the intersection of the left upper collar 11 and the rear upper collar 13, and the right vertical collar 15 is connected to the right upper collar 12 and the rear upper collar 13. It communicates with the intersection with the flange 13. A flange 8a having a plurality of screw insertion holes 8s is formed on the left side of the left vertical flange portion 14, and a flange 8b having a plurality of screw insertion holes 8s on the right side of the right vertical flange portion 15 is also formed. Further, a flange portion 8c is formed at the lower edge portion, having a plurality of screw holes 8n and projecting inward. A plurality of screw insertion holes 8 s are also formed in the upper edge portion of the rear plate 8. Further, the rear plate 8 is formed with a connector arrangement hole 8d.

  The bottom plate 9 is formed with a flange portion 9a projecting upward at the front edge portion, and a plurality of screw holes 9n are formed in the flange portion 9a. Furthermore, screw insertion holes 9 s are formed in the left and right edges and the rear edge of the bottom plate 9.

  As shown in FIGS. 2 and 5, the left side plate 6 has an upper flange portion 6a joined to the flange portion 5a of the upper surface plate 5 by a screw 10, and the right side plate 7 has an upper flange portion 7b having the upper surface portion 5a. The flange portion 5b is joined by a screw 10. The rear plate 8, the top plate 5, the left side plate 6, and the right side plate 7 are joined by screwing screws 10 passed through the screw insertion holes 8s into the screw holes 5n, 6n, 7n.

  The bottom plate 9 is joined to the left side plate 6, the right side plate 7, and the rear plate 8 by screwing screws 10 through the screw insertion holes 9s into the screw holes 6n, 7n, 8n. The operation panel 4 is screwed into the screw holes 5n, 6n, 7n, 9n with screws (not shown).

  In this case, the intersection of the left upper collar part 11, the rear upper collar part 13, and the left vertical collar part 14 is notched in advance (the notches are denoted by reference numerals 11a, 13a, 14a in FIG. 2). Also, the intersection of the right upper collar part 12, the rear upper collar part 13 and the right vertical collar part 15 is notched in advance (the notches are denoted by reference numerals 12a, 13b, 15a in FIG. 2). By this notch, the joint portions of the flange portions communicate with each other in a concave shape.

  In the car navigation device 1 configured as described above, dew condensation may occur inside the instrument panel 2 during use of the air conditioner. In this case, dew condensation water (water droplets) is formed on the upper surface plate 5 of the outer casing 3. May drop. In this case, since the entire car navigation device 1 is installed in a rearwardly lowered manner, the upper surface plate 5 is also inclined downwardly and is non-porous, so that water droplets enter the outer casing 3 from the upper surface plate 5. Instead, it flows down to the rear upper collar 13.

  Further, it is assumed that water droplets are directed from the upper surface plate 5 toward the left side plate 6 or the right side plate 7 due to vibrations of the vehicle, etc., but this water droplet flows into the left upper collar part 11 and the right upper collar part 12. . The water (water droplets) that has flowed into these upper collars 11 and 12 flows out of the car navigation device 1 from the left vertical gutter part 14 and the right vertical gutter part 15. Accordingly, the water droplets dropped on the upper surface plate 5 are guided to the outside without passing through the left side plate 6, the right side plate 7 and the rear plate 8. As a result, wetting of the electric control unit inside the outer casing 3 is avoided.

  In addition, since the ventilation holes 6e and 7e are provided in the outer casing 3 other than the operation panel 4 and the upper surface plate 5, in this case, the left side surface plate 6 and the right side surface plate 7, the cooling performance can be maintained well. Furthermore, since the outer casing 3 itself is formed with the concave upper collar parts 11, 12, 13 and the vertical collar parts 14, 15, the outer casing 3 itself does not become larger outside, In the car navigation device 1 provided in a rearwardly downward inclined state, water droplets can be prevented from entering the outer casing 3 without increasing the size of the entire car navigation device 1.

  Next, a second embodiment of the present invention will be described with reference to FIG. A plurality of concave groove portions 17 are formed on the upper surface plate 5 of the outer casing 3 so as to extend in the front-rear direction, and the groove portions 17 communicate with the rear upper collar portion 13. ing. According to the second embodiment, the water droplets dropped on the upper surface plate 5 do not go to the left side surface plate 6 and the right side surface plate 7 and flow down rearward along the groove portions 17 as they are, thereby diffusing the water droplets. Can be prevented.

  A third embodiment of the present invention will be described with reference to FIG. The third embodiment is different in that the groove portion 17 is formed so as to extend obliquely with respect to the front-rear direction. According to the third embodiment, it is possible to weaken the water force of the flowing water droplets.

  Further, a fourth embodiment of the present invention will be described with reference to FIGS. In this embodiment, the installation form of the car navigation device 1 and the configuration of the upper surface plate 5A are mainly different from those in the first to third embodiments. That is, as shown in FIG. 9, the car navigation device 1 is provided in a substantially horizontal state on the instrument panel 2, and as shown in FIGS. 10 to 12, the upper surface plate 5 </ b> A is configured to be rearwardly lowered. . In this case, the protruding flange portions 5a and 5b in the first embodiment are not provided. Accordingly, the left upper collar portion 11 is located at the leftmost end, and the right upper collar portion 12 is located at the rightmost end. Further, the left side plate 6A does not have the flange portions 6a and 6d in the first embodiment, and the right side plate 7A also does not have the flange portions 7a and 7d in the first embodiment. The notches 14a and 15a in the rear plate 8A are formed so that the depth from the upper end is deeper than that in the first embodiment.

A plurality of screw holes 12n (see FIG. 11) are formed at positions higher than the bottom portion of the rising portion 11a of the upper flange portion 11 on the left side of the upper surface plate 5A and the rising portion 12a of the upper flange portion 12 on the right side.
A plurality of screw insertion holes (not shown) are provided at the upper edge of the left side plate 6A in a rear-lowering arrangement form (form along the rear-lowering virtual line K shown in FIGS. 11 and 12). Furthermore, a screw insertion hole 6s is also provided at the rear edge of the left side plate 6A. The right side plate 7A is bilaterally symmetric with the left side plate 6A, and the same portions are denoted by the same reference numerals.

  The rear plate 8A does not have the flange portions 8a and 8b of the first embodiment. Therefore, the left vertical flange 14 is positioned at the left end of the rear plate 8A, and the right vertical flange 15 is the rear plate. Located at the right end of 8A. The upper screw insertion hole 8s of the rear surface plate 8A is formed at a position slightly lower than the corresponding screw insertion hole 8s in the first embodiment so that the upper surface plate 5A is provided in a downwardly inclined manner.

  In the fourth embodiment, the top plate 5A, the left side plate 6A, the right side plate 7A, the rear plate 8A, the bottom plate 9A, and the operation panel 4 are screwed into the screw holes with the screws 10 passed through the screw insertion holes. As a result, the outer casing 3 is configured by bonding. As a result, the upper surface plate 5A is inclined backward and downward.

  According to the fourth embodiment, the car navigation device 1 is in a substantially horizontal installation state, but the upper surface plate 5A is inclined backward and is non-porous, so that the upper surface plate 5A of the outer casing 3 As in the first embodiment, the dropped water droplets flow down from the upper surface plate 5A to the rear upper collar portion 13 without entering the inside of the outer casing 3. Further, it is assumed that water droplets are directed from the upper surface plate 5A toward the left side surface plate 6A and the right side surface plate 7A due to vehicle vibration or the like, but the water droplets flow into the left and right upper collar portions 11 and 12. The water (water droplets) flowing into these upper collar parts 11, 12, 13 flows down from the vertical collar parts 14, 15 to the car navigation device 1. Therefore, the water droplets dropped on the upper surface plate 5A are guided to the outside without passing through the left side plate 6A, the right side plate 7A and the rear surface plate 8A, and the electric control unit inside the outer casing 3 is prevented from getting wet. Further, since the ventilation holes 6e and 7e are provided in the left side plate 6A and the right side plate 7A, which are parts other than the operation panel 4 and the top plate 5A in the outer casing 3, the cooling performance can be maintained well. Furthermore, since the outer casing 3 itself is formed with the concave upper collar parts 11, 12, 13 and the vertical collar parts 14, 15, the outer casing 3 itself does not become larger outside, In the car navigation device 1 that is provided substantially horizontally, it is possible to prevent water droplets from entering the outer casing 3 without increasing the size of the entire car navigation device 1.

  Next, FIG. 13 shows a fifth embodiment of the present invention, and the shape of the upper surface plate 5B is different from that of the upper surface plate 5A of the fourth embodiment. That is, the upper surface plate 5B is formed in a shape in which the middle portion in the left-right direction rises in the front-rear direction and is inclined downward from the middle portion 5i to the left edge portion and the right edge portion.

According to this, water droplets dropped on the upper surface plate 5B of the outer casing 3 can be quickly directed to the left and right upper collar portions 11 and 12 while being directed rearward, and the retention of water droplets can be prevented.
FIG. 14 shows a sixth embodiment of the present invention, in which the upper surface plate 5C is inclined downward in the diagonal direction (indicated by an arrow T for convenience), that is, the upper collar portion existing in this diagonal direction, A vertical hook 14 is provided so as to communicate with the intersection of the upper hooks 11 and 13. In addition, the vertical saddle portion 15 in the first embodiment and the vertical saddle portion 15 in the fourth embodiment are not provided at the intersection of the right upper collar portion 12 and the rear upper collar portion 13. The bottom of the buttock at the intersection of the upper ridge 12 and the upper ridge 13 is continuous.

  According to this, it is possible to make the water drop dripped on the upper surface plate 5C flow down from one place of the vertical hook part 14 communicating with the intersection part of the upper hook parts 11 and 13 existing in the diagonal direction. The lower part can be specified as one, and the drainage route setting from the car navigation device 1 becomes easy.

  The present invention is not limited to the above-described embodiments, and may be as follows. Each of the flanges has an angular concave shape, but this may be an arc-shaped concave shape, and the intended purpose can be achieved even if the depth is shallow. The vent hole may be provided in the rear plate 8 as long as it is provided in the outer casing and other than the operation panel and the upper surface portion. In FIGS. 10, 13, and 14, a lid that closes the upper surface surrounded by the upper edge of the left side plate 6, the right side plate 7, and the rear side plate 8 may be provided. It is preferable to provide a hole for dropping to the face plate. Further, the electric control device is not limited to the car navigation device.

  In the drawings, 1 is a car navigation device (electric control device), 2 is an instrument panel, 3 is an outer casing, 4 is an operation panel, 5 is an upper surface plate (upper surface portion), 6 is a left side surface plate (left surface portion), and 7 is Right side plate (right side portion), 8 is a rear plate (rear surface portion), 9 is a bottom plate (bottom surface portion), 11, 12 and 13 are upper collar portions, and 14 and 15 are vertical saddle portions.

Claims (6)

An electric control device configured to include an electric control unit inside a rectangular box-shaped outer casing having an operation panel on the front side, and installed in a vehicle in a downwardly inclined manner on the vehicle,
An upper surface portion of the outer casing having a rectangular shape in a plan view is formed in a non-hole shape, and an upper collar portion having a concave shape in three edge portions except for the edge portion on the operation panel side on the upper surface portion. Forming,
Forming a concave vertical hook part that hangs down from the rear face part of the outer casing,
An electric control device characterized in that a vent hole is formed in a portion other than the operation panel and the upper surface portion in the outer casing.   2. The electric control device according to claim 1, wherein a groove-like portion having a concave shape is formed on the upper surface portion of the outer casing so as to extend in the front-rear direction, and communicates with the upper collar portion.   2. The upper surface portion of the outer casing is formed with a concave groove-like portion extending in an oblique direction with respect to the front-rear direction, and communicates with the upper collar portion. Electric control equipment. An electric control device configured to include an electric control unit inside a rectangular box having an operation panel on the front side, and installed in a substantially horizontal state on the vehicle,
The upper surface portion of the outer casing having a rectangular shape in a plan view is configured to be non-holed, and the upper surface portion is configured to be inclined downwardly from the rear, and further, the edge portion on the operation panel side is provided on the upper surface portion. Form a concave upper collar on the three edges except
Forming a concave vertical hook part that hangs down from the rear face part of the outer casing,
An electric control device characterized in that a vent hole is formed in a portion other than the operation panel and the upper surface portion in the outer casing.   5. The electric control device according to claim 4, wherein an intermediate portion in the left-right direction rises in the front-rear direction, and the upper surface portion is inclined downward from the intermediate portion to the left edge portion and the right edge portion. 5. The electric control device according to claim 4, wherein the upper surface portion is inclined downward in a diagonal direction, and the vertical hook portion communicates with an upper hook portion existing in the diagonal direction.

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