JPH10185734A - Pressure sensor module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a pressure sensor module for preventing water entering a pressure sensor module from a gap between the connection part of a housing and a connector body. SOLUTION: An annular support 4 is engaged to the outside of the base part of a connector body 3a. A tip surface 3f of the base part of the connector body 3a is brought into contact with a non-pressure-sensing side insulation- substrate 5a of a pressure-sensing element, and one end face 4a of the annular support 4 is brought into contact with the non-pressure-sensing side insulation- substrate 5a outside the base part of the connector body 3a. A connection part 7g1 of the housing 7 is subjected to curling machining toward the annular support 4 and the connector body 3a. An annular taper surface 4b is formed at an inner-periphery side edge part at the side of the other end face 4c of the annular support 4, and a ring-shaped packing 10 is arranged so that it contacts the taper surface 4b, an outer surface 3g2 of the base part of the connector body 3a, and an inner surface 7g2 of the connection part 7g1 of the housing 7. An annular recessed part 4d is formed at the outer-periphery surface part of the annular support 4, and an auxiliary ring-shaped packing 11 is engaged to the annular recessed part 4d.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure sensor module.

[0002]

2. Description of the Related Art As a pressure sensor module used for a gas pressure detecting device or the like, a pressure sensor module having a structure in which a pressure sensing element, a circuit board, a part of a connector, and the like are housed in a housing is known. The pressure sensing element is a sensor element including a capacitance type sensor element. In this pressure sensing element, at least one is provided with opposing electrodes on opposing surfaces of a pair of insulating substrates, such as a pair of ceramic plates, which are movable or flexible with respect to an applied pressure. It has a structure for detecting a change in pressure. The connector has a structure in which a metal terminal member is fixed to a connector body formed of an insulating material made of synthetic resin. In the pressure sensor module disclosed in JP-A-63-19527, a flange is integrally formed at the lower end of the connector body, and the flange is laminated on the pressure sensing element via a support ring. It is housed in a housing, and is subjected to curling (caulking) so that the flange of the connector body is wrapped around the end of the housing. However, since the insulating material forming the flange portion has a low pressure resistance, when the connector is mounted by curling so as to wrap the flange portion at the end of the housing, the connector is continuously attached to the flange portion through the pressure sensing element and the support ring. When a large force is applied, the connector may be disconnected or the connector may be damaged.
Therefore, in the pressure sensor module disclosed in Japanese Patent Application Laid-Open No. 2-190731, a metal supporting member (supporting base) is formed as a pressure sensing element in order to prevent a force from being applied to the synthetic resin connector body through the pressure sensing element. They are arranged between the connector and insulate them.

[0003] However, when a metal supporting base is arranged between the pressure sensing element and the connector, the entire thickness or height is increased by the thickness of the supporting base, thereby reducing the size of the pressure sensor module. There are problems such as not being able to do.

Therefore, the inventor of the present invention brought the distal end face of the base of the connector body into contact with the pressure sensing side insulating base of the pressure sensing element, and placed one end face of the annular support outside the base of the connector body. It has been proposed that the housing be connected to the base of the connector body while being in contact with the pressure sensing side insulating base. Specifically, an annular shoulder is integrally provided on the outer peripheral portion of the base of the connector main body, and the coupling portion of the housing is formed so as to wrap the other end surface of the annular support and the outer edge of the outer end surface of the shoulder of the connector main body. It is curling. With this configuration, the thickness or height of the entire pressure sensor module can be reduced by the amount that the metal supporting base is not used between the pressure sensing element and the connector. Moreover, even when a high pressure is applied to the pressure sensing element, the annular support and the connector body share and receive the pressure, and the coupling portion of the housing also comes into contact with both the annular support and the connector body. So
A large force is not applied to the connector body so as to damage the connector body.

However, merely by curling the joint of the housing so as to wrap the other end surface of the annular support and the outer edge of the outer end surface of the shoulder of the connector main body, the gap between the joint of the housing and the connector main body cannot be obtained. There is a problem that water enters the pressure sensor module through the gap. In particular, when water enters the signal circuit board inside the pressure sensor module, a problem such as a short circuit occurs. Therefore, the inventor has proposed to form a seal layer made of a synthetic resin over the connector body and the connecting portion of the housing so that water does not enter the inside of the pressure sensor module.

[0006]

By forming such a sealing layer made of a synthetic resin, a highly reliable seal can be obtained. However, in order to form this seal layer, it is necessary to consider the application operation and curing time of the synthetic resin, and the production efficiency is not always high. In addition, there is no guarantee that high sealing properties can be maintained for a long time using only the sealing layer made of a synthetic resin.

An object of the present invention is to provide a pressure sensor module that can easily prevent water from entering the inside of the pressure sensor module from a gap between a coupling portion of a housing and a connector body.

Another object of the present invention is to provide a pressure sensor module having higher reliability than the conventional one.

[0009]

SUMMARY OF THE INVENTION According to the present invention, there is provided a pressure sensing side insulating substrate and a non-pressure sensing side insulating substrate which are disposed so as to face each other. A pressure sensing element for detecting a change in pressure from a change in the pressure, a connector having a connector body having a terminal member to which the terminal of the mating connector is connected, and a connector body formed of an insulating resin material; The fitted annular support, the pressure sensing element, the base of the connector main body, the storage chamber for storing the annular support, and the pressure measurement surface which communicates with the storage chamber to apply pressure to the pressure sensing surface of the pressure sensing side insulating substrate. A metal housing including a high-pressure fluid supply path for supplying fluid, an outer edge of an annular shoulder provided at a base of the connector body, and a coupling portion curled so as to surround an end surface of the annular support. A pressure sensor module having a preparative be subject to improvement. Here, the annular shoulder provided at the base of the connector main body may have any shape as long as it has an outer edge portion capable of curling the connection portion of the housing, and the non-pressure sensing side insulating property of the pressure sensing element may be used. It may have a shape extending to the lower part of the base of the connector main body so as to be in contact with the base, or may have a flange shape protruding outward from the base of the connector main body so as not to contact the non-pressure sensing side insulating base of the pressure sensing element. Good.

In the present invention, between the base of the connector main body and the base of the connector main body, or between the base of the connector main body and the base of the annular support and the housing. A ring-shaped packing that seals the gap formed is arranged.

Unlike the case of forming a sealing layer of a synthetic resin, it is not necessary to consider the application work and the curing time, as in the case of forming a seal layer of a synthetic resin. A seal portion for preventing water from entering the inside of the pressure sensor module from a gap between the coupling portion and the base portion of the connector body can be easily formed.

The ring-shaped packing may be provided between the base of the connector main body and the connecting portion of the housing or between the base of the connector main body and the connecting portion of the annular support and the housing.
It may be arranged in any form. For example, on the inner peripheral edge on the end face side of the annular support opposite to the pressure sensing element,
It is possible to form an annular tapered surface whose diameter increases as the distance from the pressure sensing element increases, and arrange the ring-shaped packing such that the tapered surface contacts the outer surface of the base of the connector body and the inner surface of the coupling portion of the housing. it can. Since the tapered surface can be easily formed on the annular support, a space for disposing the ring-shaped packing can be easily formed.

It is preferable that an auxiliary ring-shaped packing is further arranged between the outer peripheral surface of the annular support and the wall of the housing. With this configuration, it is possible to prevent water that has entered between the annular support and the housing from entering the pressure sensor module without being blocked by the ring-shaped packing. The auxiliary ring-shaped packing may be formed by forming an annular recess continuous in the circumferential direction on the outer peripheral surface of the annular support and fitting the annular recess.

In order to seal a gap formed between the base of the connector body and the annular support, a first ring-shaped packing is disposed between the base and the annular support to form a seal between the housing and the annular support. A second ring-shaped packing may be placed between them to seal the gaps created.

In this case, the annular shoulder formed at the base of the connector body is constituted by an annular flange, and the annular support has an annular packing fitting space which is circumferentially continuous with the flange. Form an annular step to form,
The first ring-shaped packing is fitted into the packing fitting space. Then, an annular concave portion which is continuous in the circumferential direction is formed on the outer peripheral surface portion of the annular support, and the second ring-shaped packing may be fitted into the annular concave portion. In this way, the positioning of the first ring-shaped packing is easy. Further, since the first ring-shaped packing can be strongly sandwiched between the flange portion and the step portion, there is an advantage that the sealing performance is improved.

If a seal layer made of synthetic resin is formed over the connecting portion between the connector body and the housing, water enters the inside of the pressure sensor module through a gap between the connecting portion of the housing and the base portion of the connector body. Can be more effectively prevented, and high reliability can be obtained.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view of a pressure sensor module according to an example of an embodiment of the present invention.
As shown in FIG. 1, the pressure sensor module has a structure in which a connector assembly 1 is fixed to a pressure sensor assembly 2. The connector assembly 1 has a structure in which an annular support 4 is engaged with a connector 3. The pressure sensor assembly 2 includes a pressure sensing element 5, a circuit board 6, and a housing 7.

The connector 3 has three terminal members 3b1, 3b2, 3b3 (3b3 not shown) on a connector body 3a.
Has an insert molded structure. The connector main body 3a is composed of a cylindrical body 3c and a terminal member fixing portion 3d to which three terminal members 3b1 to 3b3 are fixed.
It is integrally formed of a synthetic resin (insulating resin material) made of PBT (polybutylene terephthalate) which is more easily deformed by high pressure than a material of a later-described housing 7 (aluminum alloy, iron, etc.). A substrate housing recess 3e surrounding the circuit board 6 is formed at the base (portion on the housing 7 side) of the cylindrical body 3c. The front end face 3f surrounding the substrate storage recess 3e is in contact with the non-pressure sensing side insulating base 5a of the pressure sensing element 5. Further, an annular shoulder 3g protruding outward in the radial direction is integrally provided on the outer peripheral portion of the base of the cylindrical body 3c. As shown in detail in the partial enlarged view of FIG.
The lower end has a shape extending to the lower part of the base of the connector main body so as to contact the non-pressure sensing side insulating base 5a, and has an annular outer end face 3g1 on the side opposite to the front end face 3f. One end of the terminal members 3b1 to 3b3 is electrically connected to the circuit board 6, and the other end is connected to a terminal of a mating connector (not shown).

The annular support 4 is provided such that one end face 4a is in contact with the non-pressure sensing side insulating base 5a of the pressure sensing element 5 outside the base of the connector body 3a.
It is arranged so as to surround the outer peripheral portion of the base of a. The annular support 4 is formed of a metal material such as an aluminum alloy or iron that is less likely to be deformed at a higher pressure than the material (PBT) of the connector body 3a. As shown in FIG. 2, an annular tapered surface 4 b of which the radial dimension increases with distance from the pressure sensing element 5 is formed on the inner peripheral edge on the other end surface 4 c side of the annular support 4.
Are formed. Further, an annular concave portion 4d which is continuous in the circumferential direction is formed on the outer peripheral surface portion of the annular support member 4 on the side closer to the non-pressure sensing side insulating base 5a.

The pressure sensing element 5 of the pressure sensor assembly 2
Is a known pressure sensing element. For example, as shown in the schematic sectional view of FIG. 3, the non-pressure sensing side insulating base 5a made of a ceramic base and the pressure sensing side insulating base 5b made of a ceramic base constituting a flexible diaphragm are formed in an annular shape. It has a structure sealed via a glass layer 5c. In order to facilitate understanding, FIG.
The thickness dimension of c and the dimension between the non-pressure sensing side insulating base 5a and the pressure sensing side insulating base 5b are exaggerated. Opposite electrodes 5d and 5e are formed on the opposing surfaces of the non-pressure sensing insulating substrate 5a and the pressure sensing insulating substrate 5b, respectively. These opposing electrodes 5d and 5e are connected to the circuit pattern of the circuit board 6 by conductive connecting means (not shown). The pressure sensing element 5 detects a change in pressure from a change in capacitance between the counter electrodes 5d and 5e.

The circuit board 6 is disposed on the non-pressure sensing side insulating base 5a of the pressure sensing element 5, and includes a signal conversion circuit 6b and a connecting portion 6c on the circuit board, that is, the insulating base 6a. It has a structure. The connecting portions 6c have a female terminal structure into which one ends of the terminal members 3b1 to 3b3 of the connector 3 are fitted.

The housing 7 has a structure in which a housing body 7a and a high-pressure fluid supply cylinder 7b are integrally formed. The housing 7 is formed of a metal such as an aluminum alloy, iron, brass or the like. I have. The housing body 7a has a substantially cylindrical shape having a bottom wall 7a1 and a peripheral wall 7a2, and has a storage chamber 7c formed therein. The storage chamber 7c stores the pressure sensing element storage section 7d in which the pressure sensing element 5 is stored, and the annular support 4, the circuit board 6, and the base of the connector main body 3a provided continuously to the pressure sensing element storage section 7d. And a support storage section 7e. Since the support accommodating portion 7e is formed to be larger in diameter than the pressure sensing element accommodating portion 7d, the pressure sensing element accommodating portion 7d
A support step 7f that supports the outer edge of one end face 4a of the annular support 4 is formed between the support member 7e and the support storage portion 7e. In this embodiment, an O-ring 8a is provided between the pressure sensing side insulating base 5b of the pressure sensing element 5 and the bottom surface (bottom wall 7a1) of the pressure sensing element housing 7d, and concentric with the outside of the O-ring 8a. And a backup ring 8b that is arranged in a uniform manner. This backup ring 8b is formed of Teflon (trademark). An annular groove for accommodating the O-ring 8a and the backup ring 8b is formed on the bottom wall 7a1 of the housing body 7a. Due to the presence of the O-ring 8a and the backup ring 8b, a chamber for applying pressure to the pressure sensing side insulating base 5b is formed. The wall 7g which forms a part of the peripheral wall 7a2 of the housing body 7a surrounding the support accommodating portion 7e is extended to a position extending beyond the end face 4c of the annular support 4 accommodated in the support accommodating portion 7e. The extended portion forms a coupling portion 7g1. As shown in FIG. 2, the coupling portion 7g1 is curled so as to wrap the outer edge of the outer end surface 3g1 which is located opposite to the end surface 4c of the annular support 4 and the tip surface 3f of the shoulder 3g of the connector body 3a. The connector assembly 1 is attached to the pressure sensor assembly 2 by the engagement between the curled joint 7g1 and the shoulder 3g. Further, in this example, the connecting portion 7g1 of the connector body 3a and the housing 7 is provided.
And a seal layer 9 made of urethane resin or epoxy resin.

Between the base of the connector body 3a, the annular support 4 and the connecting portion 7g1 of the housing 7, the annular support 4
Tapered surface 4b, outer surface 3g2 of the base of connector body 3a (outer surface of shoulder) and inner surface 7 of coupling portion 7g1 of housing 7.
The ring-shaped packing 10 is arranged so as to contact with g2. The ring-shaped packing 10 is formed of nitrile rubber, and seals a gap formed between the joint 7g1 of the housing 7 and the base of the connector body 3a. An auxiliary ring-shaped packing 11 is fitted in the annular recess 4d of the annular support 4. The auxiliary ring-shaped packing 11 is also made of nitrile rubber like the ring-shaped packing 10. The auxiliary ring-shaped packing 11 is disposed between the outer peripheral surface of the annular support 4 and the wall 7e1 surrounding the support accommodating portion 7e of the housing 7, so that the ring-shaped packing 10 is not hindered by the ring-shaped packing 10. Water that has entered between the housing 4 and the housing 7 is prevented from entering the pressure sensor module.

The high pressure fluid supply cylinder 7b has a cylindrical shape with a smaller diameter than the housing body 7a, and has a screw portion 7h formed on the outer periphery. A high-pressure fluid supply passage 7i is formed inside the high-pressure fluid supply cylinder 7b. The high-pressure fluid supply path 7i is formed so as to communicate with the storage chamber 7c, and supplies a fluid to be measured consisting of a high-pressure fluid that applies pressure to the pressure-sensing-side insulating base 5b of the pressure sensing element 5.

In this embodiment, the pressure sensor module was assembled as follows. First, as shown in the exploded sectional view of FIG. 4, the tapered surface 4b of the annular support 4 and the connector body 3
The ring-shaped packing 10 comes into contact with the outer surface (outer surface of the shoulder) 3g2 of the base portion of a, and the ring-shaped packing 11 is fitted to the annular concave portion 4d of the ring-shaped support 4 to support the ring-shaped packing 11 on the connector body 3a. The connector assembly 1 was made by fitting the body 4. In this state (the state before the curling process is performed), the outer end surface 3g of the shoulder 3g of the connector main body 3a.
1 protrudes from the other end face 4c of the annular support. Next, the connector assembly 1 is housed in the housing 7 of the pressure sensor assembly 2 in the direction indicated by arrow A in FIG. During this storage, the auxiliary ring-shaped packing 11
The annular recess 4d of the annular support 4 and the wall 7e of the housing 7
Press between 1 and compress. Also, one end face 4a of the annular support 4 and the tip end face 3f of the base of the connector body 3a
Are brought into contact with the non-pressure sensing side insulating base 5a of the pressure sensing element 5 and the connection portions 6c.
The terminal members 3b1 to 3b3 are fitted. Next, the joint 7g1 of the housing 7 is connected to the outer end face 3 of the flange 3g.
The connector assembly 1 was fixed to the pressure sensor assembly 2 by caulking or curling in the direction shown by arrow B so as to cover the outer edge of g1. At the time of this curling, the ring-shaped packing 10 includes the tapered surface 4b of the annular support 4, the outer surface 3g2 of the base of the connector body 3a (outer surface of the shoulder), and the inner surface 7g2 of the joint 7g1 of the housing 7.
Pressed by and compress.

Next, a seal layer 9 was formed by filling a urethane resin or an epoxy resin over the connector body 3a and the joint 7g1 of the housing 7, thereby completing the process. In this example, the annular support 4 is fitted to the connector body 3a to form the connector assembly 1 and the connector assembly 1 is housed in the housing 7 of the pressure sensor assembly 2. After accommodating the annular support 4 fitted into the recess 4d in the housing 7 of the pressure sensor assembly 2, the connector body 3a is accommodated in the housing 7 so that the shoulder 3g is engaged with the annular support 4 and then. Tapered surface 4b of annular support 4 and connector body 3
Of course, the ring-shaped packing 10 may be arranged so as to be in contact with the outer surface (outer surface of the shoulder) 3g2 of the base of a.

In the above example, the tapered surface 4b of the annular support 4 and the outer surface of the base of the connector body 3a (the outer surface of the shoulder).
The ring-shaped packing 10 is arranged so as to be in contact with 3g2 and the inner surface 7g2 of the connecting portion 7g1 of the housing 7.
Any connector may be used as long as it seals a gap formed between the joint 7g1 of the housing 7 and the base of the connector body 3a.
A ring-shaped packing may be arranged between the g1 and the g1. In that case, an annular concave portion for arranging the ring-shaped packing may be formed at the base of the connector main body 3a or the coupling portion 7g1 of the housing 7.

FIG. 5 is a partially enlarged view showing a joint portion between the connector body and the housing of another example of the pressure sensor module. In this example, the gap formed between the base of the connector body 13a and the annular support 14 is sealed by the first ring-shaped packing 110. In particular,
An annular flange portion 13g is formed at the base of the connector main body 13a, and an annular step portion 14b is formed on the annular support member 14 to form an annular packing fitting space S that is continuous in the circumferential direction between the annular support portion 14 and the flange portion 13g. . Then, the first ring-shaped packing 110 is fitted in the packing fitting space S. Further, an auxiliary ring-shaped packing 111 constituting a second ring-shaped packing is fitted into an annular concave portion 14d which is continuous in the circumferential direction of the outer peripheral surface of the annular support 14. According to this example, the positioning of the first ring-shaped packing 110 is easy. The flange 13
Ring-shaped packing 110 between the step and the step 14b.
Can be strongly sandwiched, so that there is an advantage that the sealing property is enhanced.

In each of the above examples, the connector body 3a,
Although the seal layer 9 made of urethane resin is formed so as to extend over the connecting portion 13a and the joint 7g1 of the housing 7, the seal layer 9 is not necessarily formed.

Hereinafter, some of the plurality of inventions described in this specification will be described.

(1) Opposing electrodes are arranged on opposing surfaces of the pressure-sensing-side insulating base and the non-pressure-sensing-side insulating base, respectively, which are arranged so as to face each other. And a connector having a connector body formed of an insulating resin material having a terminal member to which the terminal of the mating connector is connected,
A housing chamber for housing the base of the pressure sensing element and the connector body, and a high-pressure fluid supply passage communicating with the housing chamber for supplying a fluid to be measured for applying pressure to a pressure sensing surface of the insulating body on the pressure sensing side. And a metal housing having a coupling portion which is subjected to curling processing and is coupled to an annular shoulder portion provided on the base portion of the connector main body, and fitted outside the base portion of the connector main body. An annular support, wherein the distal end surface of the base of the connector body is in contact with the non-pressure sensing side insulating substrate, and one end surface of the annular support is outside the base of the connector body. The storage chamber of the housing is in contact with the non-pressure sensing side insulating substrate, and the storage chamber of the housing is provided with a sensing element storage part in which the pressure sensing element is stored, and the annular support is provided continuously with the pressure sensing element storage part. And a support housing portion in which the annular support is supported between the sensing element housing portion and the support housing portion by contacting the outer edge of the one end surface of the annular support member. A support step portion is formed, and a wall surrounding the support housing portion of the housing is extended to a position extending beyond the other end surface of the annular support housed in the support housing portion, and the connection is performed. And an outer edge of an outer end face of the connecting portion, the other end face of the annular support and an outer end face located on a side opposite to the tip end face of the base of the shoulder provided on the base of the connector body. In a pressure sensor module that is curled so as to enclose a part, a ring-shaped packing that seals a gap formed between the coupling part of the housing and the base of the connector body is provided on the connector main body. The pressure sensor module, characterized in that it is disposed between the coupling portion between or the said base portion of said connector body and said annular support housing and said coupling portion of said base and said housing.

(2) An annular tapered surface is formed at an inner peripheral edge of the annular support on the other end surface side, the annular taper surface increasing in diameter as the distance from the pressure sensing element increases. The pressure sensor module according to (1), wherein the pressure sensor module is arranged so as to contact the tapered surface, an outer surface of the base of the connector main body, and an inner surface of the coupling portion of the housing.

(3) An auxiliary ring-shaped packing is further disposed between the outer peripheral surface of the annular support and the wall surrounding the support accommodating portion of the housing. The pressure sensor module according to 1) or 2).

(4) The pressure as described in (3) above, wherein an annular concave portion is formed in the outer peripheral surface portion of the annular support body in the circumferential direction, and the auxiliary ring-shaped packing is fitted in the annular concave portion. Sensor module.

(5) In the above (1), (2), (3) or (4), a seal layer made of a synthetic resin is formed over the connector main body and the coupling portion of the housing. The pressure sensor module according to any one of the preceding claims.

[0036]

As in the case of forming a sealing layer of a synthetic resin, it is not necessary to consider the application work and the curing time in the ring-shaped packing. Therefore, according to the present invention, since the ring-shaped packing is disposed, a seal portion for preventing water from entering the inside of the pressure sensor module from the gap between the coupling portion of the housing and the base of the connector body is easily formed. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view of a pressure sensor module according to an example of an embodiment of the present invention.

FIG. 2 is a partially enlarged view of the pressure sensor module shown in FIG.

FIG. 3 is a sectional view of a pressure sensing element used in a pressure sensor module according to an example of an embodiment of the present invention.

FIG. 4 is an exploded cross-sectional view of a pressure sensor module according to an example of an embodiment of the present invention.

FIG. 5 is a partially enlarged view of another example of the pressure sensor module.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Connector 3a Connector body 3b1, 3b2 Terminal member 3e Substrate storage recess 3f Tip surface 3g Shoulder 4 Annular support 4a End surface 4b Tapered portion 5 Pressure sensing element 5a Non-pressure sensing insulating substrate 5b Pressure sensing insulating substrate 5d 5e Counter electrode 6 Circuit board 6c Connection part 7 Housing 7c Storage room 7d Sensing element storage part 7e Support storage part 7f Support step part 7g1 Coupling part

Claims (7)

[Claims] 1. A counter electrode is disposed on each of opposing surfaces of a pressure-sensing-side insulating base and a non-pressure-sensing-side insulating base, which are disposed so as to face each other. A pressure sensing element to be detected, a connector having a connector body formed of an insulating resin material having a terminal member to which a terminal of a mating connector is connected, and an annular support fitted outside the base of the connector body A body, a storage chamber for storing the pressure sensing element, the base of the connector body, and the annular support, and a measured object that communicates with the storage chamber to apply pressure to a pressure sensing surface of the pressure sensing side insulating substrate. A high-pressure fluid supply path for supplying fluid, an outer edge of an annular shoulder provided at the base of the connector body, and a connecting portion curled so as to surround an end surface of the annular support. A pressure sensor module comprising: a metal housing; a ring-shaped packing that seals a gap formed between the coupling portion of the housing and the base of the connector main body; A pressure sensor module, wherein the pressure sensor module is disposed between the coupling portion of the housing or between the base portion of the connector main body, the annular support, and the coupling portion of the housing. 2. An annular tapered surface whose diameter increases with distance from the pressure sensing element is formed at an inner peripheral side edge of the annular support opposite to the pressure sensing element on an end surface side, The pressure sensor module according to claim 1, wherein the ring-shaped packing is arranged so as to contact the tapered surface, an outer surface of the base of the connector body, and an inner surface of the coupling portion of the housing. 3. The pressure sensor module according to claim 1, wherein an auxiliary ring-shaped packing is further disposed between an outer peripheral surface of the annular support and a wall of the housing. . 4. The pressure sensor module according to claim 3, wherein an annular concave portion is formed in an outer peripheral surface portion of the annular support body in a circumferential direction, and the auxiliary ring-shaped packing is fitted in the annular concave portion. . 5. A counter electrode is disposed on each of opposing surfaces of a pressure sensing side insulating base and a non-pressure sensing side insulating base which are disposed so as to face each other, and a change in pressure is detected based on a change in capacitance between the counter electrodes. A pressure sensing element to be detected, a connector having a connector body formed of an insulating resin material having a terminal member to which a terminal of a mating connector is connected, and an annular support fitted outside the base of the connector body A body, a storage chamber for storing the pressure sensing element, the base of the connector body, and the annular support, and a measured object that communicates with the storage chamber to apply pressure to a pressure sensing surface of the pressure sensing side insulating substrate. A high-pressure fluid supply path for supplying fluid, an outer edge of an annular shoulder provided at the base of the connector body, and a connecting portion curled so as to surround an end surface of the annular support. A pressure sensor module comprising: a metal housing; a first ring-shaped packing disposed between the base and the annular support to seal a gap formed between the base and the annular support; And a second ring-shaped packing is disposed between the housing and the annular support to seal a gap formed between the housing and the annular support. 6. The annular shoulder formed on the base of the connector main body is constituted by an annular flange, and the annular support is annularly continuous between the annular support and the flange. An annular step portion that forms a fitting space is formed, the first ring-shaped packing is fitted into the packing fitting space, and a circumferentially continuous annular concave portion is formed on the outer peripheral surface of the annular support. The pressure sensor module according to claim 5, wherein the second ring-shaped packing is fitted in the annular concave portion. 7. The pressure sensor according to claim 1, wherein a seal layer made of a synthetic resin is formed over the connector main body and the connecting portion of the housing. module.