CN1174222C

CN1174222C - Instrument device

Info

Publication number: CN1174222C
Application number: CNB011093870A
Authority: CN
Inventors: 隆堀; 堀隆
Original assignee: Nippon Seiki Co Ltd
Current assignee: Nippon Seiki Co Ltd
Priority date: 2000-03-07
Filing date: 2001-03-06
Publication date: 2004-11-03
Anticipated expiration: 2021-03-06
Also published as: JP3324115B2; CN1313604A; JP2001255175A; TW548219B

Abstract

A measuring device is provided, which has sufficient water-proof effect said measuring device includes: a meter-unit 1, which has a circuit-substrate 14; an under-case 3, in which a reception-portion 33 is provided, said reception-portion 33 has a bottom-wall 32 and can receive said meter-unit 1; and an upper-case 2, which covers said reception-portion 33. In the reception-portion 33 are provided a drain-hole 35, which drains away the water coming from the gap between the under-case 3 and the upper-case 2; and a water-proof wall 36, which prevents the water from entering towards the side of the circuit-substrate 14 formed between the drain-hole 35 and the circuit-substrate 14.

Description

Metering device

Technical field

The present invention is the metering device that can avoid external humidification, for example relates to the instrument of automatic two-wheeled cycle and building machinery etc.

Background technology

In the past, be subjected to the metering device equipped on the vehicles such as building machinery that wind and rain etc. influences or automatic two-wheeled cycle easily, maloperation and fault took place, formed the waterproof construction that prevents that rainwater etc. from immersing for the electronic unit that prevents this metering device is stained with rainwater etc.

Yet, the waterproof construction of metering device, by using or the integrally formed upper shell that can have an X-rayed the instrument display part that above metering device, forms, can prevent from last direction metering device immersion, but can not fully prevent marginal portion immersion from upper shell, become in the inboard reason that forms mist of upper shell, the means of known solution this point have between the auxiliary section of upper shell that holds metering device and lower house puts rubber gasket, seal metering device by deposition housings such as ultrasound wave deposition operations, prevent that water droplet etc. from immersing from the outside.

Yet, in such structure, use waterproof special-purpose members such as rubber gasket, need the operation of these parts of installation and these parts of deposition etc., have shortcomings such as the difficulty of installation, the whole cost height of instrument.

And, because part aging such as above-mentioned rubber gasket can not be guaranteed impermeability, exist rainwater from problems such as outside immersions, exist because the problem that environment causes inner instrument etc. to be damaged.

Summary of the invention

The present invention finishes in view of the above problems, the purpose of this invention is to provide good, the abundant metering device of waterproof and draining of installation exercise.

Metering device of the present invention is characterised in that: have charged base board instrument pack, be provided with the accommodation section that holds above-mentioned instrument pack of band lower wall lower house, cover the upper shell of above-mentioned accommodation section, above-mentioned accommodation section be provided with the moisture that discharge immerses from the gap between above-mentioned lower house and the above-mentioned upper shell osculum, be formed on the bulkhead that preventing to immerse moisture between above-mentioned osculum and the foregoing circuit substrate from the foregoing circuit substrate side surfaces.

And this metering device is characterised in that above-mentioned bulkhead is arranged to surround the form around the foregoing circuit substrate.

And this metering device is characterised in that above-mentioned upper shell is provided with along the decline wall of the side of above-mentioned lower house.

And this metering device is characterised in that above-mentioned decline wall engages with above-mentioned bulkhead.

And this metering device is characterised in that the regulation position of above-mentioned decline wall is arranged to the form with above-mentioned bulkhead overlap joint, location mutually.

And, this metering device be characterised in that above-mentioned bulkhead be provided with can fixedly connected above-mentioned upper shell connecting portion.

The present invention has the upper shell of the instrument pack of charged base board, the lower house that is provided with the holding portion that holds above-mentioned instrument pack of band lower wall, the above-mentioned holding portion of covering, above-mentioned holding portion be provided with the moisture that discharge immerses from the gap between above-mentioned lower house and the above-mentioned upper shell osculum, be formed on the bulkhead that preventing to immerse moisture between above-mentioned osculum and the foregoing circuit substrate from the foregoing circuit substrate side surfaces, the installation exercise raising can be provided, guarantee sufficient waterproof effect and the metering device that rainwater etc. is had good water drainage property.

Description of drawings

Below, will be with reference to the accompanying drawings, the metering device of embodiments of the invention is described.

Fig. 1 is the exploded perspective view that the handle unit of scooter-type two-wheeled motor vehicle is shown;

Fig. 2 is the sectional view of major part of the metering device of Fig. 1;

Fig. 3 is the sectional view of the major part after the metering device of Fig. 2 is installed.

Embodiment

Fig. 1 to Fig. 3 illustrates the present invention is applied to be installed in situation on the metering device on the handle cover of scooter-type two-wheeled motor vehicle.Instrument pack 1, upper shell 2, lower house (handle cover) the 3rd, the main composition key element.

Instrument pack 1 shows various warning informations such as various instrumentation information, turn signal and light beam alarm such as the speed of travel and travel distance, as shown in Figure 1, be provided with the indicated number device 11 that for example constitutes, the liquid crystal indicator 12 that shows travel distance and other various information that shows the speed of travel, the warning display device 13 that shows various warning informations such as turn signal and light beam alarm by analogue instrument.

And such device 11～13 is powered respectively by circuit substrate 14, for example shown in Fig. 2,3, in indicated number device 11, the meter body 11B that revolution drives pointer 11A is electrically connected with circuit substrate 14, in addition, electronic units such as light emitting diode 14A is housed also.

And, instrument pack 1 has the display board 15 of band as the scale portion of the denoted object of pointer 11A, be provided with the support portion 16 that constitutes by synthetic resin with predetermined distance support circuit substrate 14 and display board 15, under the situation of present embodiment, the hook that is formed on 16 bottoms, support portion by not shown is fixedly connected on the lower house.

Upper shell 2 covers lower house 3 can see instrument pack 1 mode that is contained in the lower house 3 that is described in detail the back from above, shown in Fig. 2,3, constitute by the perspective portion 21 of display part that can identifier table unit 1 and the cover portion 22 that this perspective portion 21 of encirclement forms the edge mate frame body, under the situation of present embodiment, perspective portion 21 utilizes transparent acrylic resin, cover portion 22 utilizes black AES resin on the one hand, and being shaped by 2 looks forms.

And for upper shell 2, under the situation of present embodiment, the decline wall 23 from cover portion 22 along downside forms in the mode of roughly surrounding around the instrument pack 1, is provided with simultaneously to be used for the connecting hole (connecting portion) 24 that is connected with lower house 3 described later.

Lower house 3 is as the handle cover of unshowned handle in the coverage diagram, integrally formed at this, be instrument pack 1 and the upper shell 2 of packing into from the top, external diameter shape according to instrument pack 1 and upper shell 2, be provided with the concavity accommodation section 33 that sidewall 31 and lower wall 32 be made of of internal diameter than these big some depressions downwards, sidewall 31 is provided with the composition surface 34 that upper shell 2 engages.

And, though be not shown specifically, be formed with through hole on the lower wall 32, by this through hole, be connected to board connector on the circuit substrate 14 of instrument pack 1, be inserted with conducting car body distribution the car body connector Relay linker (wiring element) respectively conducting connect, can supply with instrument pack 1 one sides to electricity and various signals from car body one side, instrument pack 1 fixedly is placed in the accommodation section 33 of lower house 3 after this connection operation.

And, be formed with osculum 35 near the lower wall 32 the

sidewall

31,33 being discharged to the outside from the accommodation section, prevent that moisture from accumulating in spill accommodation section 33 from the moisture such as rainwater of the immersion of the gap between upper shell 2 and the composition surface 34.

And, on the lower house 3, in order to prevent that rainwater etc. from immersing from circuit substrate 14 sides of instrument pack 1, drainage effect is good simultaneously, bulkhead 36 is integrally formed on the lower wall 32 between osculum 35 and circuit substrate 14, under the situation of present embodiment, bulkhead 36 roughly surround circuit substrate 14 around, the mode that engages with aforementioned decline wall 23 forms.And, on the bulkhead 36 be formed on decline wall 23 on the corresponding position of connecting hole 24 on be formed with and connect pawl 37 (connecting portion), can be installed in upper shell 2 on the lower house 3 from the top.

And, in the present embodiment, as Fig. 2, shown in 3, decline wall 23 and bulkhead 36 are arranged to following form, promptly by the end difference 23A above being arranged on separately, 36A engages, when installing housing 2, locate on above-below direction with respect to lower house 3, simultaneously because by a part of mutual overlap joint that overlaps between decline wall 23 and the bulkhead 36, constituting the structure or the moisture that are difficult to form the gap between decline wall 23 and the bulkhead 36 is difficult to from the structure of gap immersion, obtain good waterproof effect, derive the rainwater of osculum 35 sides simultaneously by aforementioned bulkhead 36, can solve the problem of accumulating rainwater in the accommodation section 33 of lower house 3.

As mentioned above, be formed with osculum on the lower wall 32 of the accommodation section 33 of lower house 3, prevent from the bulkhead 36 of immersion between this osculum 35 and the circuit substrate 14 by setting, part count does not increase raising, there is not special installation exercise technology yet, can prevent that circuit substrate 14 sides immersions simultaneously can draining, constitute the metering device that circuit substrate 14 is had abundant waterproof and drainage effect.

And, bulkhead 36 and decline wall 23 be arranged to roughly to surround circuit substrate 14 around, engage by end difference 23A, the 36A that is separately positioned on as shown in Figure 3 on bulkhead 36 and the decline wall 23, make bulkhead 36 or decline wall 23 regulation positions overlap joint, form the waterproof construction of considering that not only water drips from top but also considers to splash from the bottom from osculum 35 immersions owing to condition water such as vibrations.

And, by the connection pawl 37 of bulkhead 36 and the connecting hole 24 of decline wall 23, can keep 2 pairs of lower houses of upper shell 3 to connect, realize waterproof construction by simple installation exercise.

And, in the present embodiment, instrument pack 1 and upper shell 2 are fixedlyed connected installation for lower house 3 by hook etc., but the present invention is not limited to this as fixed sturcture, fixing means and fixed position can be provided with arbitrarily, for example, upper shell 2 also can be fixed by stop screw for instrument pack 1.

And, bulkhead can prevent that adhesive water is also passable on the particularly circuit substrate of instrument pack, as the bulkhead shown in the present embodiment 36, shape does not limit, according to the shape of instrument pack, lower house, upper shell etc. and the purposes of metering device, so long as suitable shape just can.

Claims

1. metering device, instrument pack with charged base board, be provided with the lower house of the accommodation section that holds above-mentioned instrument pack of band lower wall, cover the upper shell of above-mentioned accommodation section, above-mentioned accommodation section is provided with the osculum of discharge from the moisture of the immersion of the gap between above-mentioned lower house and the above-mentioned upper shell, be formed on the bulkhead that prevents to immerse moisture between above-mentioned osculum and the foregoing circuit substrate from the foregoing circuit substrate side surfaces, it is characterized in that: above-mentioned upper shell is provided with the decline wall along the side of above-mentioned lower house, above-mentioned decline wall engages with above-mentioned bulkhead, and the form with above-mentioned bulkhead overlap joint is arranged at the regulation position of above-mentioned decline wall.

2. metering device as claimed in claim 1 is characterized in that: above-mentioned bulkhead is arranged to surround foregoing circuit substrate form all around.

3. metering device as claimed in claim 1 is characterized in that: above-mentioned decline wall and above-mentioned bulkhead are located mutually.

4. as each described metering device in the claim 1～3, it is characterized in that: above-mentioned bulkhead be provided with can fixedly connected above-mentioned upper shell connecting portion.