JP2003042882A - Pressure sensor mounting structure - Google Patents

Pressure sensor mounting structure

Info

Publication number
JP2003042882A
JP2003042882A JP2001235397A JP2001235397A JP2003042882A JP 2003042882 A JP2003042882 A JP 2003042882A JP 2001235397 A JP2001235397 A JP 2001235397A JP 2001235397 A JP2001235397 A JP 2001235397A JP 2003042882 A JP2003042882 A JP 2003042882A
Authority
JP
Japan
Prior art keywords
pressure sensor
pressure
sensor
mounting
case
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2001235397A
Other languages
Japanese (ja)
Other versions
JP4635391B2 (en
Inventor
Koichi Hattori
Shuya Mikami
三上  修也
浩一 服部
Original Assignee
Denso Corp
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp, 株式会社デンソー filed Critical Denso Corp
Priority to JP2001235397A priority Critical patent/JP4635391B2/en
Publication of JP2003042882A publication Critical patent/JP2003042882A/en
Application granted granted Critical
Publication of JP4635391B2 publication Critical patent/JP4635391B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a pressure sensor 1 capable of reducing the number of parts and improving assembly properties. SOLUTION: A surge tank 4 is formed of a resin material as a mounting body for detecting pressure, and provided with at least one snap-fit part 8 formed in such a way as to be protruded from an external surface 4a. The pressure sensor 1 is constituted in such a way that the snap-fit part 8 sandwiches a case 2 in the direction that a pressure introducing tube 3 is inserted in a sensor mounting hole part 5, mounted and fixed to the external surface 4a of the surge tank 4, and sandwiched in the direction that the pressure introducing tube 3 is inserted in the sensor mounting hole part 5. The movements of the pressure sensor (case 2) 1 in to-and-fro and side-to-side directions over the external surface 4a are restricted by the insertion of the pressure introducing tube 3 in the sensor mounting hole part 5. In other words, it is possible to stabilize the location of the pressure sensor 1 in each of the to-and-fro and side-to-side directions over the external surface 4a and fix the pressure sensor 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure sensor mounting structure mounted on an outer surface of a mounting body on which a pressure sensor is mounted.

[0002]

2. Description of the Related Art Conventionally, as a mounting structure for a pressure sensor mounted on the outer surface of a mounting body on which a pressure sensor is mounted, a fastening means such as a screw has been constructed on the outer surface of the mounting body. The pressure sensor is attached by screwing a flange portion and the like of the pressure sensor.

[0003]

However, the fastening means such as a screw requires a screw part, and the number of parts increases. Further, it is necessary to tighten a screw and the like, and the assembling property of this tightening work is poor, and the mounting of the pressure sensor increases the cost burden, which is a problem.

In view of the above points, an object of the present invention is to provide a pressure sensor mounting structure which can reduce the number of parts and improve the assembling property.

[0005]

In order to solve the above-mentioned problems, according to the pressure sensor mounting structure according to claim 1 of the present invention, the mounting body on which the pressure sensor is mounted is formed of a resin material. At least one snap fit portion is formed so as to project from the outer surface of the mounting body. The snap-fit portion is characterized in that the case is held in the direction in which the pressure introducing pipe is inserted into the sensor mounting hole portion and attached and fixed to the outer surface. The snap fit portion has a projection on one side and an undercut on the other side to have the above-mentioned function of holding, and can be attached and detached as well as held (fixed).

As a result, the pressure fitting pipe of the pressure sensor (case) is held by the snap fit portion provided on the outer surface of the mounting body in the direction of insertion into the sensor mounting hole portion. On the other hand, the movement of the pressure sensor (case) in the front-back and left-right directions on the outer surface is stopped by the insertion of the pressure introducing pipe into the sensor mounting hole. In other words, the pressure sensor is fixed on the outer surface of the mounting body by stabilizing its position in the front-back, left-right, and up-down directions, so that additional parts such as screws are not required and the mounting method can be done with screws or the like. It is easier than tightening. In other words, the number of parts can be reduced,
It is possible to provide a mounting structure for a pressure sensor that can be easily assembled.

According to the second aspect of the present invention, the case is integrally formed with a collar portion having a shape parallel to the direction in which the pressure introducing pipe is inserted into the sensor mounting hole portion, and the outer surface has
When the pressure introducing pipe is inserted into the sensor mounting hole portion, a guide wall that guides and holds the collar portion so as to sandwich the collar portion is provided so as to project.

As a result, the guide wall guides and holds the collar portion so as to sandwich the collar portion, and the movement of the position of the pressure sensor on the outer surface of the mounting body in the front-back and left-right directions is firmly stopped.
Therefore, it is possible to stabilize the holding of the pressure introduction pipe of the pressure sensor by the snap fit portion in the direction in which it is inserted into the sensor mounting hole portion. In other words, eliminating the tilt of the pressure sensor due to slight movements of the pressure sensor in the front-back and left-right directions,
Prevents the snap-fit part from coming off the case.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A plurality of embodiments of the present invention will be described below with reference to the drawings. In addition, the mounting structure of the pressure sensor described below can reduce the number of parts without using fastening means such as screws on the outer surface of the mounting body as the mounting structure of the pressure sensor mounted on the outer surface of the mounting body. TECHNICAL FIELD The present invention relates to a technology capable of providing a mounting structure for a pressure sensor with improved performance.

(First Embodiment) FIG. 1 is a structural view showing a mounting structure of a pressure sensor according to a first embodiment of the present invention. FIG. 1 (a) is a partial sectional view and FIG. 1 (b). Figure 1
It is the top view which looked at (a) from the upper part.

The pressure sensor 1 includes a resin case 2 in which parts including a pressure responsive displacement member such as a diaphragm and a pressure detecting portion (not shown) formed of a semiconductor element and the like are housed, and from the case 2 It has a pressure introducing pipe 3 protruding to the inside. The surge tank 4 as a mounting body for detecting pressure is formed of a resin material such as a nylon resin, and has a sensor mounting hole portion 5 opening to the outer surface 4a of the surge tank 4. The pressure introducing pipe 3 is inserted into the sensor mounting hole portion 5 described above, and the tip of the pressure introducing pipe 3 opens into the sensor mounting hole portion 5 so that the pressure in the sensor mounting hole portion 5 is pressure-responsively displaced in the case 2. Member (not shown)
It is a structure that leads to the part. An O-ring 6 as a seal member is interposed between the outer peripheral portion of the pressure introducing pipe 3 and the inner peripheral portion of the sensor mounting hole portion 5 to seal the ventilation with the outside of the surge tank 4. Reference numeral 7 denotes a connector, which sends a detection signal detected by the pressure detection unit to an internal combustion engine electronic control unit (not shown).

Two snap fit portions 8 are formed so as to project from the outer surface 4a. Each of the two snap fit portions 8 has a protrusion 8a on one side and an undercut portion 8b on the other side. Then, after the pressure introducing pipe 3 is inserted into the sensor mounting hole 5, the case 2
When the pressure sensor 1 is positioned on the outer surface 4a by abutting the bottom surface 2a thereof on the outer surface 4a, the projecting portion 8a of the snap-fit portion 8 inserts the case 2 and the pressure introducing pipe 3 into the sensor mounting hole portion 5. Hold in the direction you want. Specifically, the protrusion 8a is configured to lock the upper surface 2b of the case 2 positioned parallel to the bottom surface 2a of the case 2. The snap fit portion 8 can not only hold (fix) the case 2 but can also be attached and detached. In the present embodiment, the snap fit portions 8 are arranged so as to face the case 2 from both sides. However, if at least one snap fit portion 8 is provided, the case 2 can be held in the direction in which the pressure introducing pipe 3 is inserted into the sensor mounting hole portion 5 (described later). However, if a plurality of snap fit portions 8 are provided, the case 2 can be held more firmly.

Next, the process of mounting and fixing the pressure sensor 1 on the surge tank 4 will be described with reference to FIG. Figure 2
2A shows a state before mounting and fixing the pressure sensor 1, FIG. 2B shows a state where the pressure sensor 1 is being mounted and fixed, and FIG. 2C shows a state after mounting and fixing the pressure sensor 1. Show.

In the pressure sensor 1, the pressure introducing pipe 3 is inserted into the sensor mounting hole 5 from the state shown in FIG.
The state (b) is assembled so that the state can be pushed downward from the upper side in FIG. In the process of pushing down the pressure sensor 1 (FIG. 2 (b)), the protrusion 8a is curved by the case 2 and the protrusions 8 of the two snap fit portions 8 are bent.
It is widened to increase the distance between a. Then, almost simultaneously with the bottom surface 2a of the case 2 contacting the outer surface 4a and the pressure sensor 1 being positioned on the outer surface 4a, the expanded snap-fit portion 8 is shown in FIG. 2 (a).
Returning to the original state shown in FIG.
Position so as to lock b. The movement of the protruding portion 8a is due to the snap fit portion 8 being formed of an elastic resin material (nylon-based resin or the like). That is, the case 2 is disposed between the two projections 8 a of the snap-fit portion 8 arranged at the opposite position, and holds the case 2 in the direction in which the pressure introducing pipe 3 is inserted into the sensor mounting hole 5. This state is shown in FIG.

Thus, the outer surface 4 of the surge tank 4
The pressure sensor 1 is equipped with the snap-fit portion 8 provided in a.
The pressure introducing pipe 3 is held in the direction in which it is inserted into the sensor mounting hole 5. On the other hand, the movement of the pressure sensor (case 2) 1 on the outer surface 4a in the front-rear direction and the left-right direction is stopped by inserting the pressure introducing pipe 3 into the sensor mounting hole portion 5. In other words, the pressure sensor 1 is fixed on the outer surface 4a of the mounting body with its position stabilized in the front-back, left-right, and up-down directions, so that it does not require additional parts such as screws and can be mounted. It is easier than tightening screws. That is, it is possible to provide a mounting structure of the pressure sensor 1 in which the number of parts can be reduced and the assemblability is improved.

(Second Embodiment) FIG. 3 is a perspective view showing a mounting structure of a pressure sensor 1A according to a second embodiment of the present invention. FIG. 3 (a) is a state before mounting and fixing the pressure sensor 1A. FIG. 3B shows the pressure sensor 1A after being attached and fixed. The same components as those of the first embodiment shown in FIGS. 1 and 2 are designated by the same reference numerals, and the description thereof will be omitted. In addition, in FIG. 3, a flange 20 and a guide wall 21 that guides and holds the flange 20 are provided in the mounting structure of the pressure sensor 1 shown in FIGS. 1 and 2 (described later), The difference is that the forward and backward and left and right movements of the position of the pressure sensor 1A on the outer surface 24a of the surge tank 24 are firmly stopped. In addition, the surge tank 24 shown in FIG.
Shows a part of the surge tank 24.

The case 22 is integrally formed with a collar portion 20 having a shape parallel to the direction in which the pressure introducing pipe 23 is inserted into the sensor mounting hole portion 25. A guide wall 21 is provided on the outer surface 24a of the surge tank 24 so as to guide and hold the flange 20 when the pressure introducing pipe 23 is inserted into the sensor mounting hole 25. In detail,
The flange portion 20 is formed at a side end portion (A portion in FIG. 3) of the case 22, and is formed so as to project from the side surface end portion in both directions. The flange portion 20 protruding in both directions corresponds to the guide wall 21. Is formed.

Similar to the first embodiment, the snap-fit portion 28 is formed so as to have a protruding portion 28a and project from the outer surface 24a, and the protruding portion 28a of the snap-fit portion 28 is a side end of the case 22. The case 22 is configured to be held in the direction in which the pressure introducing pipe 23 is inserted into the sensor mounting hole 25 from the direction of the portion (A in FIG. 3).

In this way, the guide wall 21 guides and holds the collar portion 20 so as to sandwich it, and the outer surface 2 of the surge tank 24 is held.
The forward / backward and left / right movements of the position of the pressure sensor 1A on 4a are firmly stopped. Therefore, the snap fit portion 28 can stabilize the holding of the pressure introducing pipe 23 of the pressure sensor 1A in the direction in which it is inserted into the sensor mounting hole portion 25. That is, the collar portion 20 and the guide wall 21 prevent the pressure sensor 1A from tilting due to slight movements of the pressure sensor 1A in the front-rear direction and the left-right direction, and prevent the snap-fit portion 28 from coming off the case 22.

In the practice of the present invention, the example of the surge tanks 2 and 24 is shown as a mounting body, but the mounting body is not limited to this, and a substantially flat surface (external surfaces 4a and 24a, etc.) to which a pressure sensor can be mounted is used. If so, the pressure sensor mounting structure of the present invention can be realized.

Further, in implementing the present invention, an example of a surge tank 4 is shown as a mounting body to which the pressure sensor 1 is mounted, and the pressure introducing pipe 3 is directly inserted into the sensor mounting hole portion 5 opened on the outer surface of the surge tank 4. , 23 were inserted to detect the pressure. However, the mounting body to which the pressure sensor 1 is mounted is not limited to the structure for detecting the internal pressure of the mounting body itself like the surge tank 4 described above, and the pressure sensor 1 detects the pressure as shown in FIG. It may be mounted on a mounting body 30 different from the detected body 32 to be detected. In this case, for example, the pressure introducing pipe 3 and the detected body 32 whose pressure is detected are connected by the hose 31 inside the sensor mounting hole 5. That is, the mounting body 3 to which the pressure sensor 1 is mounted
Object 32 whose pressure is detected by 0 and the pressure sensor 1
And are different. Then, the mounting body 30 is provided with the snap fit portion 8 in the same manner as in the first embodiment.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a mounting structure of a pressure sensor according to a first embodiment of the present invention, in which (a) is a partial sectional view,
1B is a top view of FIG. 1A viewed from above.

2A and 2B are explanatory views showing a process in which a pressure sensor is attached and fixed to a surge tank, FIG. 2A shows a state before the pressure sensor is attached and fixed, and FIG. And (c) shows the state after the pressure sensor is attached and fixed.

3A and 3B are perspective views showing a pressure sensor mounting structure according to a second embodiment of the present invention, in which FIG. 3A shows a state before mounting and fixing the pressure sensor, and FIG. 3B shows mounting and fixing the pressure sensor. The latter is shown.

FIG. 4 is a configuration diagram showing how the pressure sensor is attached to a mounting body different from the detected body.

[Explanation of symbols]

1, 1A pressure sensor 2,22 cases 3, 23 Pressure introduction pipe 4, 24 Surge tank (attached body) 4a, 24a External surface 5, 25 Sensor mounting hole 8, 28 Snap fit part 20 Tsuba 21 guide wall

Claims (2)

[Claims]
1. A pressure sensor having a case accommodating a part including a pressure detecting portion, a pressure introducing pipe protruding from the case to the outside, and an opening on an outer surface of a mounting body on which the pressure sensor is mounted. A mounting structure of a pressure sensor, comprising: a sensor mounting hole portion, wherein the pressure introducing pipe is inserted into the sensor mounting hole portion, wherein the mounting body is formed of a resin material, and is formed to project from the outer surface. At least one snap fit portion is provided, and the snap fit portion holds the case in a direction in which the pressure introducing pipe is inserted into the sensor mounting hole portion, and attaches and fixes the case to the outer surface. Pressure sensor mounting structure.
2. The case is integrally formed with a collar portion having a shape parallel to a direction in which the pressure introducing pipe is inserted into the sensor mounting hole portion, and the pressure introducing pipe is formed on the outer surface. The mounting structure for a pressure sensor according to claim 1, wherein a guide wall that guides and holds the collar portion so as to sandwich the collar portion when the sensor wall is inserted into the sensor mounting hole portion is provided in a protruding manner.
JP2001235397A 2001-08-02 2001-08-02 Pressure sensor mounting structure Expired - Fee Related JP4635391B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001235397A JP4635391B2 (en) 2001-08-02 2001-08-02 Pressure sensor mounting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001235397A JP4635391B2 (en) 2001-08-02 2001-08-02 Pressure sensor mounting structure

Publications (2)

Publication Number Publication Date
JP2003042882A true JP2003042882A (en) 2003-02-13
JP4635391B2 JP4635391B2 (en) 2011-02-23

Family

ID=19066850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001235397A Expired - Fee Related JP4635391B2 (en) 2001-08-02 2001-08-02 Pressure sensor mounting structure

Country Status (1)

Country Link
JP (1) JP4635391B2 (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007322238A (en) * 2006-05-31 2007-12-13 Sunx Ltd Structure and fixture for mounting pressure sensor
US7426869B2 (en) 2006-05-23 2008-09-23 Mitsubishi Electric Corporation Pressure sensor
JP2012525957A (en) * 2009-05-07 2012-10-25 サタ ゲーエムベーハー アンド カンパニー カーゲー Pressure gauge removable spray gun
US8925836B2 (en) 2008-10-29 2015-01-06 Sata Gmbh & Co. Kg Gravity cup for a paint sprayer
EP2351882B1 (en) * 2009-12-23 2015-08-05 Indesit Company S.p.A. Laundry treating machine comprising a pressure switch, in particular a linear pressure switch
USD740393S1 (en) 2013-09-27 2015-10-06 Sata Gmbh & Co. Kg Paint spray gun
US9327301B2 (en) 2008-03-12 2016-05-03 Jeffrey D. Fox Disposable spray gun cartridge
USD758537S1 (en) 2014-07-31 2016-06-07 Sata Gmbh & Co. Kg Paint spray gun rear portion
US9409197B2 (en) 2013-12-18 2016-08-09 Sata Gmbh & Co. Kg Air nozzle closure for a spray gun
USD768820S1 (en) 2014-09-03 2016-10-11 Sata Gmbh & Co. Kg Paint spray gun with pattern
USD770593S1 (en) 2014-07-31 2016-11-01 Sata Gmbh & Co. Kg Paint spray gun
US9533317B2 (en) 2009-07-08 2017-01-03 Sata Gmbh & Co. Kg Paint spray gun
JP2017102011A (en) * 2015-12-01 2017-06-08 長野計器株式会社 Physical quantity measurement device
US9782784B2 (en) 2010-05-28 2017-10-10 Sata Gmbh & Co. Kg Nozzle head for a spray device
US9782785B2 (en) 2010-12-02 2017-10-10 Sata Gmbh & Co. Kg Spray gun and accessories
US9878336B2 (en) 2006-12-05 2018-01-30 Sata Gmbh & Co. Kg Fluid reservoir for a paint spray gun
US10189037B2 (en) 2011-06-30 2019-01-29 Sata Gmbh & Co. Kg Easy-to-clean spray gun, accessories therefor, and mounting and dismounting methods
US10464076B2 (en) 2015-12-21 2019-11-05 Sata Gmbh & Co. Kg Air cap and nozzle assembly for a spray gun, and spray gun
US10471449B2 (en) 2016-08-19 2019-11-12 Sata Gmbh & Co. Kg Air cap arrangement and spray gun
US10702879B2 (en) 2014-07-31 2020-07-07 Sata Gmbh & Co. Kg Spray gun manufacturing method, spray gun, spray gun body and cover

Citations (1)

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JP2000240630A (en) * 1999-02-18 2000-09-05 Honda Motor Co Ltd Connecting structure of synthetic resin part for vehicle and screw member

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JPH08277733A (en) * 1995-04-05 1996-10-22 Aisan Ind Co Ltd Intake pressure detector and intake pressure sensor for internal combustion engine
JPH11210580A (en) * 1998-01-29 1999-08-03 Denso Corp Intake device for internal combustion engine

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Publication number Priority date Publication date Assignee Title
JP2000240630A (en) * 1999-02-18 2000-09-05 Honda Motor Co Ltd Connecting structure of synthetic resin part for vehicle and screw member

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7426869B2 (en) 2006-05-23 2008-09-23 Mitsubishi Electric Corporation Pressure sensor
US7707892B2 (en) 2006-05-23 2010-05-04 Mitsubishi Electric Corporation Pressure sensor
JP2007322238A (en) * 2006-05-31 2007-12-13 Sunx Ltd Structure and fixture for mounting pressure sensor
US9878336B2 (en) 2006-12-05 2018-01-30 Sata Gmbh & Co. Kg Fluid reservoir for a paint spray gun
US9327301B2 (en) 2008-03-12 2016-05-03 Jeffrey D. Fox Disposable spray gun cartridge
US8925836B2 (en) 2008-10-29 2015-01-06 Sata Gmbh & Co. Kg Gravity cup for a paint sprayer
US8857732B2 (en) 2009-05-07 2014-10-14 Sata Gmbh & Co Kg Spray gun with pressure measuring device
JP2012525957A (en) * 2009-05-07 2012-10-25 サタ ゲーエムベーハー アンド カンパニー カーゲー Pressure gauge removable spray gun
US9533317B2 (en) 2009-07-08 2017-01-03 Sata Gmbh & Co. Kg Paint spray gun
EP2351882B1 (en) * 2009-12-23 2015-08-05 Indesit Company S.p.A. Laundry treating machine comprising a pressure switch, in particular a linear pressure switch
US9782784B2 (en) 2010-05-28 2017-10-10 Sata Gmbh & Co. Kg Nozzle head for a spray device
US9782785B2 (en) 2010-12-02 2017-10-10 Sata Gmbh & Co. Kg Spray gun and accessories
US10189037B2 (en) 2011-06-30 2019-01-29 Sata Gmbh & Co. Kg Easy-to-clean spray gun, accessories therefor, and mounting and dismounting methods
USD740393S1 (en) 2013-09-27 2015-10-06 Sata Gmbh & Co. Kg Paint spray gun
US9409197B2 (en) 2013-12-18 2016-08-09 Sata Gmbh & Co. Kg Air nozzle closure for a spray gun
USD835235S1 (en) 2014-07-31 2018-12-04 Sata Gmbh & Co. Kg Paint spray gun
USD798419S1 (en) 2014-07-31 2017-09-26 Sata Gmbh & Co. Kg Paint spray gun
USD758537S1 (en) 2014-07-31 2016-06-07 Sata Gmbh & Co. Kg Paint spray gun rear portion
USD770593S1 (en) 2014-07-31 2016-11-01 Sata Gmbh & Co. Kg Paint spray gun
US10702879B2 (en) 2014-07-31 2020-07-07 Sata Gmbh & Co. Kg Spray gun manufacturing method, spray gun, spray gun body and cover
USD768820S1 (en) 2014-09-03 2016-10-11 Sata Gmbh & Co. Kg Paint spray gun with pattern
JP2017102011A (en) * 2015-12-01 2017-06-08 長野計器株式会社 Physical quantity measurement device
US10145749B2 (en) 2015-12-01 2018-12-04 Nagano Keiki Co., Ltd. Physical quantity measuring device including a sensor module and a joint for locking the sensor module
US10464076B2 (en) 2015-12-21 2019-11-05 Sata Gmbh & Co. Kg Air cap and nozzle assembly for a spray gun, and spray gun
US10471449B2 (en) 2016-08-19 2019-11-12 Sata Gmbh & Co. Kg Air cap arrangement and spray gun

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