JP2012103085A - Instrument device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an instrument device capable of improving waterproofness and dust resistance.SOLUTION: An instrument device comprises: a circuit board 5 provided with a base plate side connector C1 electrically connected with an external connecting connector C2; a case 1 housing indicating instruments 2, 3 and the circuit board 5, and having an opening 121 enabling the connectors C1, C2 to be connected; a cylindrical peripheral wall part 122 provided on the outer periphery of the opening 121; and a waterproof boot 8 having a cylindrical waterproof wall 81 enclosing the outer peripheral side of the peripheral wall part 122. The waterproof boot 8 is provided with a hood part 82 fitting to a first standing wall part 123 provided at a predetermined distance from the outer periphery of the peripheral wall part 122, a second standing wall part 124 provided at a predetermined distance from the outer periphery of the first standing wall part 123, and a groove part 125 provided between the first and second standing wall parts 123, 124.

Description

  The present invention relates to a special vehicle such as a construction machine, and an instrument device such as a water bike, a snowmobile, a ship, or a motorcycle, and more particularly, a wiring member that is formed by being electrically routed from the inside to the outside of a case in the instrument device. This relates to the waterproof structure.

  In this type of instrument device, for example, various indicator instruments (indicators) such as a speedometer, a fuel gauge, and a thermometer for instructing with a pointer are housed and fixed inside a case composed of an upper side and a lower side. A circuit board for driving each indicating instrument (display) is housed and fixed. Further, in some cases, an indicator instrument (display device) comprising a liquid crystal display device is housed and fixed in the case, and a circuit board for driving the liquid crystal display device is housed and fixed in the case.

  In order to electrically route from the circuit board to the outside of the case, for example, a female connector is provided on the circuit board side, and the other is connected via a wiring cord that is a wiring member to which a male connector is connected. The lead is electrically drawn out from the inside of the case to the outside through an opening provided in the case. At this time, as described in Patent Document 1, for example, the wiring member is attached to a waterproof boot (waterproof connector cover) made of an elastic member in order to maintain waterproofness between the wiring member and the opening of the case. It is configured to be inserted and kept watertight.

JP 2007-85786 A

  In the above-described Patent Document 1 or the like, when the waterproof boot (waterproof connector cover) through which the wiring member is inserted is assembled to the case which is the mounting member, the periphery of the opening provided in the case for inserting the wiring cord A waterproof wall is provided at the portion, and a waterproof boot is placed so as to cover the outer periphery of the waterproof wall.

  However, when used in harsh environments such as motorcycles, there is a problem that rainwater may enter from between the waterproof boot and the waterproof wall provided in the case from the outside, and the waterproofness is lacking. Yes. That is, since a cylindrical waterproof wall is provided around the opening of the case, and only the waterproof boot is covered so as to cover the cylindrical waterproof wall, rainwater is directly applied to the case. Therefore, there is a problem that the waterproof boot is likely to deteriorate.

  Then, this invention pays attention to the above-mentioned problem, and it aims at providing the measuring device which can improve waterproofness.

  In order to solve the above-described problem, the present invention provides an indicator instrument, an external connection connector provided with a control circuit for driving the indicator instrument, and routed to the outside of the indicator instrument. A circuit board including a board-side connector to be electrically connected; a case having an opening that accommodates the indicator instrument and the circuit board and allows the external connector to be connected to the board-side connector; A cylindrical peripheral wall provided at the periphery of the opening, and a waterproof boot having a cylindrical waterproof wall provided on the external connection connector side and made of an elastic material surrounding the outer peripheral side of the peripheral wall. In the instrument device provided, the first standing wall portion provided at a predetermined interval on the outer periphery of the peripheral wall portion, the second standing wall portion provided at a predetermined interval on the outer periphery of the first standing wall portion, A water boot is provided on the outer periphery of the waterproof wall at a predetermined interval, and includes a hood portion that fits into a groove portion provided between the first standing wall portion and the second standing wall portion. This is a measuring instrument device.

  By comprising in this way, it covers with the cylindrical wall part which consists of a triple by the cylindrical surrounding wall part, the 1st standing wall part, and the 2nd standing wall part from the inside so that the opening part provided in the case may be surrounded. As a result, intrusion of rainwater and the like from the outside can be suppressed. That is, it is possible to improve waterproofness by fitting a tubular waterproof wall provided in the waterproof boot and the hood portion between the triple wall portions, and corresponds to the wall portion on the outer peripheral side of the waterproof boot. By covering the hood portion with the second standing wall portion, it is possible to prevent water or the like from being directly applied to the waterproof boot, thereby providing a highly waterproof instrument device.

  According to a second aspect of the present invention, in the instrument device according to the first aspect, the second standing wall portion is formed so as to protrude from a bottom surface portion of the case.

  By comprising in this way, even if rainwater tries to enter from the outside of the case, the rainwater can be received by the second standing wall portion by being protruded from the bottom surface portion of the case and provided with the second standing wall portion. The property can be kept good.

  According to a third aspect of the present invention, in the instrument device according to the first or second aspect, a height dimension of the waterproof wall provided in the waterproof boot is set higher than a height dimension of the hood portion. This is an instrument device.

  With this configuration, when the waterproof boot is assembled to the case, the waterproof wall is first drawn into the groove provided between the cylindrical wall portion of the case and the first standing wall portion. And then the hood portion provided on the waterproof boot along the inner side of the second standing wall portion can be inserted into the groove portion provided between the first standing wall portion and the second standing wall portion. Therefore, there is also an advantage that assembly is relatively easy.

  The present invention includes an indicator instrument and a control circuit that drives the indicator instrument, and also includes a board-side connector that is electrically connected to an external connector that is routed to the outside of the indicator instrument. A case that has a circuit board, a case that accommodates the indicating instrument and the circuit board, and that allows the external connector to be connected to the board-side connector, and a cylinder that is provided at the periphery of the connector connection opening In the instrument device comprising: a peripheral wall portion formed in a shape; and a waterproof boot having a cylindrical waterproof wall made of an elastic material provided on the external connection connector side and surrounding the outer peripheral side of the peripheral wall portion. A first standing wall portion provided at a predetermined interval on the outer periphery of the portion, a second standing wall portion provided at a predetermined interval on the outer periphery of the first standing wall portion, and the waterproof wall of the waterproof boot An instrument device comprising a hood portion provided on the outer periphery at a predetermined interval and fitted in a groove portion provided between the first standing wall portion and the second standing wall portion. Therefore, from the outside, the cylindrical peripheral wall portion, the first standing wall portion, and the second standing wall portion are covered with the triple cylindrical wall portion so as to surround the opening provided in the case. Invasion of rainwater etc. can be suppressed, and the waterproofness can be enhanced by fitting the cylindrical waterproof wall provided in the waterproof boot and the hood part between the triple wall parts, By covering the hood portion corresponding to the wall portion on the outer peripheral side with the second standing wall portion, it is possible to prevent water or the like from being directly applied to the waterproof boot, thereby providing a highly waterproof instrument device. it can.

It is a front view which shows the instrument apparatus which is the 1st Embodiment of this invention. It is sectional drawing of the meter apparatus which shows the principal part of the AA line location of FIG. It is sectional drawing of the meter apparatus which shows the state before the assembly | attachment of FIG.

  FIGS. 1 to 3 show a first embodiment of the present invention. Based on these drawings, a case where the embodiment of the present invention is applied to an instrument device mounted on, for example, a motorcycle will be described below.

  In the figure, as the instrument device according to the present embodiment, an analog type comprising a well-known pointer-type instrument for displaying speedometer information in a case 1 which is an exterior member comprising an upper case 11 and a lower case 12. The indicator instrument 2 is arranged in the center, and the analog indicator instrument 2 including a fuel gauge on the left side and a water temperature gauge on the right side.

  Further, as shown in FIG. 1 and the like, a display unit composed of a liquid crystal display element 31 for displaying vehicle information such as an odometer (ODO, TRIP) is provided on the lower side of an indicating instrument 2 (display unit) composed of a speedometer. An indicating instrument 3 is disposed, and the indicating instruments 2 and 3 are assembled and fixed in a storage space including the upper case 11 and the lower case 12.

  In this case, the indicator meters 2 and 3 such as a speedometer and an odometer are assembled and fixed to a casing 4 made of a synthetic resin frame-shaped holder, and a circuit board made of a hard material behind the casing 4. 5 is assembled and fixed.

  An analog indicator instrument 2 including a speedometer, a fuel gauge, a water temperature gauge, and the like has an instrument main body (movement) 21 and a display plate 22 attached and fixed to the front side of the instrument main body 21, and a rotating shaft 23 of the instrument main body 21. The indication of the pointer 24 assembled at the front end of the display is read in contrast with the indicator portion 25 such as scales, letters, numbers, etc. applied to the display board 22.

  On the circuit board 5, electronic components (not shown) forming a control circuit for driving the indicator meters 2 and 3 are mounted, and on the front side of the circuit board 5, the display board 22 is mounted. An illumination light source 6 (LED) for illuminating the indicator unit 25 such as a scale or number provided, the indicator 24 or the liquid crystal display element 31 is assembled.

  Further, on the back side of the circuit board 5, there is provided a board-side connector C1 comprising a case 1, and in this embodiment, a female connector that is electrically routed to the outside of the lower case 12. ing.

  The case 1 in this embodiment includes an upper case 11 and a lower case 12, and the upper case 11 can visually recognize the indicator portion 25 area provided on the display board 22 and the indication state of the pointer 24. A see-through panel 111 made of a transparent synthetic resin material and an upper case body 112 made of an opaque synthetic resin are integrally formed at a peripheral portion of the transparent see-through panel 111 by molding.

  In addition, the lower case 12 is provided with a connector connection opening 121 corresponding to the board-side connector C1 mounted on the back side of the circuit board 5 described above, and a peripheral edge of the connector connection opening 121. A cylindrical peripheral wall portion 122 is provided so as to surround the.

  The external connection connector C2 comprising a male connector connected to the board connector C1 comprising a female connector mounted on the back side of the circuit board 5 is electrically connected to the battery side which is the power source side of the motorcycle. A wiring cord 7 which is a wiring member to be connected to the connector is connected, and the connector for external connection is kept watertight between the wiring member (wiring cord 7) and the opening 121 provided in the lower case 12 A waterproof boot 8 which is a waterproof connector cover made of an elastic member for covering C2 is provided.

  In the present embodiment, the waterproof boot 8 that is a waterproof connector cover is provided in order to maintain the waterproof property between the wiring cord 7 and the opening 121 of the case 12, and the waterproof boot 8 is continuously waterproofed. A plurality of wiring cords 7 are inserted into a wiring tube 8 a provided so as to take into consideration the properties and are arranged to be routed outside the case 1.

  Further, in the present embodiment, in order to further improve waterproofness and dustproofness, the lower case 12 is provided with the peripheral wall portion 122 so as to surround the peripheral portion of the opening 121 in a cylindrical shape, and the peripheral wall portion. A cylindrical first standing wall portion 123 provided at a predetermined interval along the outer periphery of 122, and a cylindrical second standing wall provided at a predetermined interval on the outer periphery of the first standing wall portion 123. Part 124 is provided so as to protrude toward the outer surface side of the lower case 12, and a groove part 125 is formed between the first and second standing wall parts 123, 124 with a predetermined gap therebetween. In addition, a groove 126 is similarly formed between the peripheral wall 122 and the first standing wall 124.

  At this time, the second standing wall portion 124 is formed to project from the bottom surface portion of the lower case 12, and the height dimension of the second standing wall portion 124 is the height at which the first standing wall portion 123 projects. It is formed so as to protrude in a dimension having a height higher than the dimension.

  The waterproof boot 8 is provided with a cylindrical waterproof wall 81 having elasticity surrounding the cylindrical peripheral wall portion 122 provided at the periphery of the connector connection opening 121 of the lower case 12. A cylindrical hood portion 82 that fits into a groove portion 125 formed between the first and second standing wall portions 123 and 124 provided in the lower case 12 is provided so as to surround the outer periphery of the wall 81. ing.

  The height dimension of the waterproof wall 81 provided in the waterproof boot 8 is set to be higher than the height dimension of the hood portion 82 provided on the outer peripheral side of the waterproof wall 81.

  In the instrument device configured as described above, assembly is performed as follows. First, the indicating instruments 2 and 3 are assembled and fixed to a casing 4 made of a synthetic resin frame-shaped holder, and a circuit board 5 made of a hard material is assembled and fixed to the back side of the casing 4. . In this state, the indicating instruments 2 and 3, the casing 4, and the circuit board 5 are assembled with the lower case 12 as a reference, and the assembly of the instrument device itself is completed by covering the upper case 11 with the lower case 12. .

  Subsequently, the instrument-side board-side connector C1 provided on the back side of the circuit board 5 and the external connection connector C2 connected to the wiring cord 7 as a wiring member are fitted and electrically connected. Form the draw. At this time, by fitting the waterproof wall 81 provided on the waterproof boot 8 into the cylindrical peripheral wall portion 122 provided around the opening 121 of the lower case 12, the peripheral wall portion 122 and the first standing wall portion 123 The waterproof wall 81 is guided into the groove portion 126 formed between the waterproof boot 8 and the waterproof boot 8 is assembled to the lower case 12 while maintaining watertightness. At the same time, the cylindrical hood portion 82 provided in the waterproof boot 8 is also led along the groove portion 125 formed between the first standing wall portion 123 and the second standing wall portion 124. Since it is assembled, it can be easily assembled.

  At this time, by setting the height dimension of the waterproof wall 81 provided in the waterproof boot 8 higher than the height dimension of the hood portion 82, the waterproof wall 8 is attached to the lower case 12 when the waterproof boot 8 is assembled. 81 is first inserted into a groove 126 provided between the cylindrical peripheral wall 122 of the lower case 12 and the first standing wall 123, and then assembled to the inside of the second standing wall 124. Along with this, the hood portion 82 provided on the waterproof boot 8 can be guided and assembled into the groove portion 125 provided between the first standing wall portion 123 and the second standing wall portion 124. There is also a merit that it is easy.

  Further, after the assembly, a triple cylindrical shape is formed from the inside by the cylindrical peripheral wall portion 122, the first standing wall portion 123, and the second standing wall portion 124 so as to surround the opening 121 provided in the lower case 12. Intrusion of rainwater and the like from the outside is suppressed by covering with the wall portion of the wall, and by inserting the cylindrical waterproof wall 81 and the hood portion 82 provided in the waterproof boot 8 between the triple wall portions The waterproof property can be enhanced and the hood portion 82 corresponding to the wall portion on the outer peripheral side of the waterproof boot 8 is covered with the second standing wall portion 124 to prevent the waterproof boot 8 from being directly splashed with water. This makes it possible to provide a highly waterproof and dustproof instrument device even under severe environmental conditions such as exposure to rainwater. It is possible to easily perform the work with saw.

  Further, the height dimension of the waterproof wall 81 provided in the waterproof boot 8 is set to be higher than the height dimension of the hood portion 82 provided on the outer peripheral side of the waterproof wall 81, so that the outer side of the lower case 12 is set. Even if rainwater enters from the bottom, the second standing wall portion 124 is provided so as to protrude from the bottom surface portion of the lower case 12, so that rainwater can be passed by the second standing wall portion 124, and the waterproof property can be kept good. it can.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, in the embodiment, triple wall portions 122, 123, 124 are formed from the inside so as to surround the peripheral portion of the opening 121 of the case 12, and the triple wall portions 122, 123, 124 are interposed between the triple wall portions 122, 123, 124. Although it was configured to maintain waterproofness and dustproofness by fitting the cylindrical waterproof wall 81 provided in the waterproof boot 8 and the hood part 82, it is not limited to the triple wall part, but in an external atmosphere Various modifications are possible according to the use conditions and the like, and it may be formed so as to be surrounded by a quadruple wall portion.

  Further, the height and thickness of the waterproof wall 81 and the hood portion 82 provided on the waterproof boot 8 may be set as appropriate, and the shape and hardness of the waterproof wall 81 and the hood portion 82 of the waterproof boot 8 may be set. The size may be arbitrarily changed. In addition, the tip of the waterproof wall 81 and the hood portion 82 of the waterproof boot 8 may be tapered so that it can be easily guided between the wall portions on the case 1 side. As long as it can be changed, it may be changed as appropriate.

  In addition, as described in detail in the above-described embodiment, the description has been given by taking an example of an instrument device for a vehicle such as a motorcycle. However, the invention is not limited to an instrument for a vehicle. The present invention can also be applied to an instrument device.

1 Case 2, 3 Indicator instrument 4 Casing 5 Circuit board 6 Light source 7 Wiring cord (wiring member)
DESCRIPTION OF SYMBOLS 8 Waterproof boot 8a Wiring tube 11 Upper case 12 Lower case 21 Instrument main body 22 Display board 23 Rotating shaft 24 Pointer 25 Index part 31 Liquid crystal display element 81 Waterproof wall 82 Hood part 111 See-through panel 112 Upper case body 121 Opening part 122 Perimeter wall part 123 1st standing wall part 124 2nd standing wall part 125,126 groove part C1 board side connector C2 connector for external connection

Claims (3)

  An indicator instrument, a circuit board including a control circuit for driving the indicator instrument, and a board-side connector that is electrically connected to an external connection connector that is routed to the outside of the indicator instrument; A case having an opening that accommodates the indicating instrument and the circuit board and allows the external connector to be connected to the board-side connector; a cylindrical peripheral wall provided at the periphery of the opening; A waterproof boot having a cylindrical waterproof wall made of an elastic material, which is provided on the external connection connector side and surrounds the outer peripheral side of the peripheral wall portion, and has a predetermined interval around the outer periphery of the peripheral wall portion A first standing wall portion provided at a predetermined interval, a second standing wall portion provided at a predetermined interval on the outer periphery of the first standing wall portion, and a predetermined interval on the outer periphery of the waterproof wall of the waterproof boot. Is an instrument apparatus characterized by comprising a receptacle which fits into the groove provided between the first vertical wall and the second vertical wall.   The instrument device according to claim 1, wherein the second standing wall portion is formed to protrude from a bottom surface portion of the case. The instrument device according to claim 1, wherein a height dimension of the waterproof wall provided in the waterproof boot is set higher than a height dimension of the hood portion.
Equipment.

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