Temperature and pressure measuring devices

Abstract

A pressure and temperature measuring device comprises a pressure sensitive element (2), an electronic board (3), pins (24) and a housing (16) configured to be connected to a tank or a tube. An elongated base (1) is configured to be arranged in the housing (16) along a longitudinal axis (A), and has a partition (5), a back (18), a platform (19) and a base (10). The partition (5) comprises an inner plane (5') oriented toward the back (18) and parallel to the longitudinal axis (A) and an outer plane (5") forming an acute angle with the inner plane (5'). The back (18), the platform (19) and the inner plane (5') of the partition (5) define a groove (17) configured to receive the plate (3). The outer plane (5'') defines an inclined support surface to serve as a support for the pressure sensitive element (2) together with the base (10).

Description

Technical Field

[0001] The subject of the invention is a pressure and temperature measuring device for measuring the pressure and temperature inside a tank containing a fluid or inside a pipe transporting a fluid.

[0002] The pressure measuring device object of the invention provides a very compact and simple-to-assemble solution, which facilitates the installation and use of a pressure measuring device in locations that are difficult to access for operators responsible for the installation and / or maintenance of the pressure measuring device.

[0003] The pressure measuring device object of the invention can be applied in industries designing and manufacturing sensor devices, and in industries involving the transportation and / or storage of fluids, where the pressure of the fluids must be controlled inside pipes or tanks. Background Art

[0004] Due to the sharp increase in the demand for energy efficiency and reduction of emission levels in motor vehicles, the number of pressure and temperature type variables that must be measured in motor vehicles has been increasing for many years, both in those vehicles that are powered exclusively by thermal engines, such as hybrid vehicles or even pure electric vehicles. This has led to a very significant increase in the number of pressure and temperature sensors installed in all types of motor vehicles, as well as in agricultural and construction machinery. This increase in demand has also led to the emergence of combined devices capable of measuring more than one variable (such as pressure and temperature) in a compact form.

[0005] In the case of applications in onboard systems in vehicles, such as heat engines, fuel cells, air conditioning systems using pressurized gas, etc., there are often severe space limitations which require sensors installed in such systems to be as small and compact as possible.

[0006] Thus, for example, it is common to find sensor designs constructed around an external housing having a threaded coupling on one side for connecting it to a tank, pipe or application system in which a medium circulates, the pressure and temperature parameters of which are desired to be known, and on the opposite side having a base shaped like an electrical connector for connecting the device to a controller or a signaling element or a combination of both.

[0007] The outer housing usually has a hexagonal shape, like a screw head, for coupling a tool provided with a hexagonal socket compatible with the measurements of said outer housing, so as to be able to perform tightening and loosening operations of the threaded hydraulic connection, via which the sensor device is coupled to the system and the medium to be measured.

[0008] Most commercially available embodiments to date differ in that the spacing between the faces of the hexagonal head is approximately 24 mm or even 27 mm, which creates a problem of lack of space in an increasing number of drive implants and onboard systems. For this reason, vehicle and onboard system manufacturers are demanding a continuous reduction in the distance between the faces of the hexagonal housing, with the stated goal being approximately 21 mm. This is generally not achievable with the designs that are part of the prior art, as the pressure-sensitive element is usually arranged perpendicular to the main axis of the sensor, thus determining the minimum circumscribed circle of the faces of the hexagon in which it can be used; such a design is known from EP 2 559 987 A1. Summary of the Invention

[0009] In order to solve the above disadvantages, the present invention relates to a pressure and temperature measuring device.

[0010] The pressure and temperature measuring device comprises a pressure-sensitive element, an electronic circuit board, connecting pins (for connecting to an external measuring device or an antenna for data transmission) and a housing.

[0011] The housing includes a center body and a connection section configured to connect to a tank, reservoir, or pipe containing a fluid.

[0012] The device includes a conduit allowing fluid connection between the fluid in the tank / reservoir / tube and the pressure sensitive element.

[0013] The housing comprises a generally prismatic and / or cylindrical elongated geometry defining a longitudinal axis (A).

[0014] In a novel manner, the device comprises a base portion having an elongated geometry, wherein the base is configured to be arranged inside a housing along a longitudinal axis (A).

[0015] The base includes a divider, back, platform, and pedestal.

[0016] The divider comprises an inner plane oriented toward the back and parallel to the longitudinal axis (A) and an outer plane forming an acute angle with the inner plane.

[0017] The back portion, the platform, and the inner planar surface of the divider define a slot oriented according to a plane parallel to the longitudinal axis (A) and configured to receive the electronic circuit board.

[0018] For its part, the outer plane of the partition defines a support surface that is inclined relative to the longitudinal axis (A) and is configured to serve as a support together with the base to support the pressure-sensitive element.

[0019] An outer surface of the divider includes an opening leading to the duct.

[0020] The configuration of the device described above provides great compactness, allowing the device to be reduced in radial dimension, since the pressure-sensitive element and the electronic circuit board are arranged in the direction of the longitudinal axis (A) and not transversely as in known embodiments.

[0021] According to a preferred embodiment, the pressure measuring device incorporates a sleeve configured to cover the pressure-sensitive element, the partition, the slot, the electronic circuit board and the back, thereby forming an armor between said element and the housing.

[0022] Thus, a compact body is formed which protects the elements housed within the sleeve, provides safety and compactness for subsequent assembly of the housing, and ensures that the elements within the sleeve cannot move beyond the limits established by said sleeve.

[0023] Preferably, the base incorporates a rod having a first section configured to be arranged within the connection section of the housing, with the first section of the rod flush with the housing. The aforementioned conduit extends through the interior of the first section of the rod. This geometry and arrangement facilitates assembly, as the first section of the rod fits neatly into the end section of the housing.

[0024] According to a preferred embodiment, the rod includes a second section extending beyond the connecting section of the housing. The base includes a cavity arranged along the longitudinal axis (A). The cavity extends solely along the second section of the rod and simultaneously extends parallel to the pipe along the first section of the rod. The cavity has a blind end (closed end) facing the interior of the tank / reservoir / pipe. The cavity is configured to receive a shaft of an electronic circuit board, wherein the shaft includes a temperature sensor.

[0025] It is thus possible to have a device which, together with the pressure measurement, also provides the measurement of the temperature of the fluid, further allowing a very easy assembly by simply sliding the shaft of the electronic circuit board inside the cavity of the stem for the base, achieving a compact device whose combination is suitable for pressure and temperature measurement in locations where lack of space to install the device is a problem.

[0026] Preferably, the pressure measuring device incorporates contact means configured to allow electrical connection between the electronic circuit board and the housing. This provides increased electrical safety, allowing the integrity of the electronic circuit board to be maintained against possible undesired electrical derivations, and also providing increased safety for operators who must handle the pressure measuring device.

[0027] According to a possible embodiment, the contact means are made by means of springs arranged inside the guides of the base. According to this embodiment, when the electronic circuit board is inserted into the slot in the base, the board contacts the springs protruding from one end of the guides, while said springs protrude from the other end of the guides (at the side of the platform of the base) and contact the housing.

[0028] This configuration of the contact arrangement simplifies the production of the electronic circuit board and the contact arrangement; the electronic circuit board and the contact arrangement can be produced as separate components and easily mounted on the substrate.

[0029] According to an alternative embodiment, the contact means are made in the form of a strip (or plate) which is fixed to the electronic circuit board and is configured to contact the housing when the electronic circuit board is inserted into the slot of the base.

[0030] Although the configuration mentioned in the previous paragraph implies greater complexity in the manufacture of the electronic circuit board, it allows facilitating the assembly task by having fewer individual components.

[0031] According to a preferred embodiment, the connecting pin comprises a first end section configured for connection to an electronic circuit board and a second end section configured for connection to an external reading device. The first end section comprises a "C"-shaped geometry, wherein a first branch of the "C" is configured for connection to the electronic circuit board, and a second branch of the "C" is attached to the second end section of the connecting pin.

[0032] The geometry of the connecting pins allows them to be formed into a "staple"-like shape, thereby allowing the electronic circuit board to be fixed to some other components of the device, thereby obtaining a more secure assembly and avoiding relative displacement of the electronic circuit board with respect to the connecting pins and other components of the device.

[0033] According to a possible embodiment, the first branch of the “C” is configured to contact the electronic circuit board by being inserted through a perforation formed in the separator and a through-hole in the electronic circuit board, and the second branch of the “C” is embedded in a recess in the separator.

[0034] This configuration allows the electronic circuit board to be securely fixed to the divider, effectively ensuring that the electronic circuit board cannot move relative to the divider.

[0035] According to an alternative embodiment, a first branch of the "C" shape is configured to contact the electronic circuit board by being inserted through an aperture in the sleeve until contacting the electronic circuit board, and a second branch of the "C" shape is embedded in a groove of the sleeve.

[0036] Once the pressure-sensitive element and the electronic circuit board have been placed, this arrangement allows the assembly to be received by means of the sleeve so that, once the compactness of the assembly is ensured, the pins can be inserted without the risk of some components (such as the pressure-sensitive element) being dislodged during the operation of inserting said pins.

[0037] Preferably, the pressure measuring device incorporates elastic contact elements housed in recesses of the partition, wherein the elastic contact elements are configured to exert a pressure action on the pressure sensitive element, thereby allowing the pressure sensitive element to always remain in continuous electrical contact.

[0038] According to a possible embodiment, the recess of the elastic contact element is located near the base.The pressure sensitive element comprises a flat edge configured to be arranged corresponding to the base (resting on the base) and a curved edge configured to be assembled with the stopper.

[0039] This arrangement allows the pressure sensitive element to be clamped very securely between the base and the stopper.

[0040] According to an alternative embodiment, the recess of the elastic contact element is located at an end of the separator opposite to the base. The pressure sensitive element includes a curved edge and a flat edge, the curved edge is configured to be arranged corresponding to the base, and the flat edge is configured to be arranged corresponding to the end of the separator opposite to the base.

[0041] The above arrangement allows a greater inclination of the outer plane of the partition relative to the inner plane and therefore allows a greater compactness of the pressure measuring device in the axial direction (in the direction of the longitudinal axis (A)).

[0042] Preferably, the pressure measuring device includes a connector component or element. The connector includes a central area configured to be arranged on the sleeve, a connection nozzle configured to be arranged around the connection pin, and a tab (or wedge) configured to be arranged to be captured between the sleeve and the pressure sensitive element, thereby applying a pressure effect on the pressure sensitive element, the pressure sensitive element being captured between the tab and the partition.

[0043] The configuration described in the previous paragraph allows for very strong strength in the fixation of the pressure-sensitive element held between the partition and the tab.

[0044] Preferably, the device incorporates at least one sealing gasket that is captured between the pressure sensitive element and the outer planar surface of the partition and surrounds the opening in a sealed manner to prevent fluid entering the opening from escaping beyond the limits marked by the sealing gasket. Thus, the retaining force of the tab against the partition (optionally in cooperation with an internal portion of the sleeve that helps to hold the tab pressing the pressure sensitive element against the partition) cooperates to maintain (due to the sealing gasket) the seal around the opening.

[0045] According to a preferred embodiment of the pressure measuring device, the separator includes a housing having an opening defined therein. Thus, when the pressure sensitive element is supported on the separator, the housing is covered by the pressure sensitive element, the pressure sensitive element and the housing of the separator thus defining a chamber configured to be flooded with fluid.

[0046] In this way, a larger contact surface of the fluid and the pressure-sensitive element can be provided, which ensures correct measurement of the fluid pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The following drawings have been included as a part of the explanation of at least one embodiment of the present invention.

[0048] Figure 1a An exploded front perspective view of a preferred embodiment of the pressure and temperature measuring device object of the present invention is shown, wherein the sleeve and the housing of the pressure measuring device are not shown.

[0049] Figure 1b Shown Figure 1a Exploded rear perspective view of a pressure measuring device, wherein contact pins of the pressure measuring device, a pressure-sensitive element, an elastic contact element of the sensor and an O-ring are not shown.

[0050] Figure 1c Shown Figure 1a Rear perspective view of the pressure measuring device.

[0051] Figure 1d Shown Figure 1a Front perspective view of the base of the pressure measuring device.

[0052] Figure 2a Shown Figure 1d Cross-sectional view of the base of the pressure measuring device.

[0053] Figure 2b A perspective view of a possible embodiment of an electronic circuit board of a pressure measuring device is shown.

[0054] Figure 3 Shown Figure 1a Exploded perspective view of the upper part of a pressure measuring device without the electronic circuit board and showing in more detail the spring contact element and the orifice in the base into which it is inserted.

[0055] Figure 4a Shown Figure 1a Exploded front perspective view of a device including a sleeve of the device arranged for installation.

[0056] Figure 4b Shown Figure 1a A front perspective view of the device with the sleeve already installed.

[0057] Figure 4c Shown with Figure 4b An exploded rear perspective view of the sleeve device, wherein the connector of the device is arranged for installation.

[0058] Figure 5a A perspective view of an exemplary embodiment of a housing of a pressure measuring device is shown.

[0059] Figure 5b Shown Figure 5a Cross-sectional view of the shell.

[0060] Figure 6a Shown with sleeve, connector and housing fully installed Figure 1a FIG. 1 is a cross-sectional view of a first preferred practical embodiment of a pressure and temperature measuring device.

[0061] Figure 6b Shown Figure 6a Perspective view of the pressure and temperature measuring device.

[0062] Figure 7a A rear exploded perspective view of a second alternative practical embodiment of a pressure and temperature measuring device is shown, wherein the housing of the device is not shown.

[0063] Figure 7b Shown Figure 7a Rear perspective view of a pressure and temperature measuring device, wherein the sleeve is shown mounted on a base and wherein the housing of the device is not shown.

[0064] Figure 7c Shown Figure 7a FIG. 1 is a cross-sectional view of a second alternative practical embodiment of a pressure and temperature measuring device.

[0065] Figure 8 An exploded front perspective view of a third alternative embodiment of a pressure and temperature measuring device is shown, wherein the circular portion of the pressure sensitive element corresponds to the plinth.

[0066] Figure 9a A perspective view of a fourth alternative practical embodiment of a pressure measuring device is shown which in this case does not include a temperature sensor.

[0067] Figure 9b Shown Figure 9a Cross-sectional view of the pressure measuring device. DETAILED DESCRIPTION

[0068] As mentioned above, the present invention relates to a pressure and temperature measuring device.

[0069] According to a first preferred practical embodiment, as Figure 1a 、 Figure 1b 、 Figure 1c and Figure 1d As can be seen in the figure, the device has a base (1) or internal structural element. A pressure-sensitive element (2) and an electronic circuit board (3) are arranged in the base (1).

[0070] The pressure-sensitive element (2) is arranged to be supported on a base (10) of a pedestal (1) and also on a partition (5) of the pedestal (1). In the partition (5) there is a housing (4) or a niche so that the pressure-sensitive element (2) presents one of its surfaces facing the housing (4) (and thus its surface resting on the partition (5)).

[0071] The separator (5) has a stopper (22) or protrusion located above the housing (4) and configured to facilitate the correct positioning of the pressure-sensitive element (2) in the base (1), so that the pressure-sensitive element (2) is thus located between the base (10), the separator (5) and the stopper (22). The stopper (22) contacts the upper circular portion of the pressure-sensitive element (2).

[0072] The housing (4) is in fluid connection with the fluid in the tank / reservoir / pipe (not shown) by means of the opening (7) (see Figure 2a ), which opening communicates with a conduit (8) extending within the stem (9) of the base (1), said conduit (8) opening toward the interior of the tank / reservoir / pipe. Thus, the housing (4) is configured to be flooded with fluid from the tank / reservoir / pipe. A sealing gasket (6) is preferably located in the housing (4), which is configured to prevent fluid from leaking from the housing (4) to other parts of the pressure measuring device.

[0073] The rod (9) is preferably made of a plastic material. More preferably, the entire base (1) is made of a plastic material.

[0074] The rod (9) may have a cylindrical or prismatic geometry.

[0075] The rod (9) extends beyond the length of the pipe (9). Figure 2a It can be seen in FIG5 how the rod (9) includes a cavity (11) extending through its interior. This cavity (11) is not in fluid connection with the fluid in the tank / reservoir / tube.

[0076] Thus, there is a first section (9') of the rod (9) through which the duct (8) and the cavity (11) extend in parallel, and a second section (9") of the rod (9) in which only the cavity (11) extends until reaching the blind end of the rod (9), closed relative to the interior of the tank / reservoir / tube. The first section (9') of the rod (9) is covered by the housing (16) of the device (see Figure 6a ), while the second section (9") of the rod (9) is exposed, protruding into the tank / reservoir / tube.

[0077] The pressure sensitive element (2) is inserted into the base (1) by means of an elastic contact element (12) housed in a recess (13) (see Figure 3 ) is coupled to the base (1) to establish continuous electrical contact, the elastic contact element (12) can be in the form of a coil spring, a plug of conductive elastomer, etc. These recesses (13) are located below the housing (4).

[0078] According to a possible design form, the recess (13) for accommodating the elastic contact element (12) is a pass-through (see Figure 1b ) and traverses the partition (5), so that the elastic contact element can be pressed against the electronic circuit board (3) and make electrical contact therewith for transmitting pressure data.

[0079] The base (1) comprises a partition (5), a platform (19), a back (18) and a slot (17) located between the partition (5), the back (18) and the platform (19). The slot (17) is configured to receive an electronic circuit board (3).

[0080] Electronic circuit board 3 ( Figure 2b The device (shown in FIG) comprises a central body (3') and a shaft (3"). The central body (3') is inserted into the slot (17) and the shaft occupies the cavity (11) inside the rod (9). The shaft (3") comprises a temperature sensor embedded in the electronic circuit board (3). Thus, the device allows measuring the pressure and temperature of the fluid inside the tank / reservoir / pipe. The temperature sensor is located in the end region of the shaft (3"), in the region farthest from the platform (19) of the base (1).

[0081] The electronic circuit board (3) may be manufactured in the form of a printed circuit board (PCB).

[0082] The contact device (20) allows the electronic circuit board (3) to be electrically connected to the housing (16).

[0083] like Figure 3 As can be seen, the contact device (20) is made in the form of a spring located in a guide (21) open at both ends, so that the spring contacts the electronic circuit board (3) in its upper part and contacts the housing (16) in its lower part.

[0084] The base (1) comprises a flange (23) protruding from the back (18) into the slot (17). The tab is configured to allow the correct positioning and correct fixation of the electronic circuit board (3) in the slot, so that when the electronic circuit board (3) has been fully inserted into the slot (17) against the platform (19), the tab (23) exerts a certain pressure against the electronic circuit board (3) so that the electronic circuit board (3) is captured between the partition (5) and the tab (23). The tab (23) also helps to correctly guide the electronic circuit board (3) when inserting it, so as to facilitate the subsequent insertion of the connection pins (24).

[0085] For the electrical connection of the pressure measuring device to an external reading device (pressure measurement and optionally also temperature measurement of the fluid), connection pins ( 24 ) are provided.

[0086] According to a preferred embodiment, the connecting pin (24) comprises a first end section (24a) for connection to the electronic circuit board (3) and a second end section (24b) for connection to an external reading device or antenna. The first end section (24a) comprises a "C"-shaped geometry, having a first branch (24a') of the "C" shape for connection to the electronic circuit board (3) and a second branch (24a") of the "C" shape attached to the second end section (24b) of the connecting pin (24).

[0087] The connecting pins (24) are configured to connect to the electronic circuit board (3) from the front of the base (3), thereby accessing the electronic circuit board (3) through a through hole (25) located above the housing (4) of the partition (5). The connecting pins (24) pass through the electronic circuit board (3) through a hole (26) in the upper part of the electronic circuit board (3) (see Figure 1c and Figure 6a In this way, in addition to allowing an electrical connection to an external reading device or antenna, the connecting pins (24) also exert a retaining effect on the electronic circuit board (3) against the partition (5), thereby ensuring the correct positioning of the electronic circuit board once the connecting pins (24) have been inserted into the perforations (25) and holes (26) of the electronic circuit board (3) and preventing lateral displacement of the electronic circuit board.

[0088] The first end section (24a) of the connecting pin is positioned so that the first branch (24a') of the "C" shape is inserted into the through-hole (25) and the hole (26), and the second branch (24a") of the "C" shape is embedded in the recess (29) of the separator (5), located above the through-hole (25).

[0089] Preferably, the pressure measuring device comprises (see Figure 4a and Figure 4b) sleeve (14) which is configured to be inserted through the upper portion of the base (1) and to cover the pressure sensitive element (2), the divider (5), the slot (17), the electronic circuit board (3) and the back (18); that is, the sleeve (14) is configured to cover all elements that are part of the base (1) or mounted in the base, leaving only the rod (9) protruding in the lower portion below the platform (19) uncovered.

[0090] Therefore, the sleeve (14) performs a protective function for the components (pressure-sensitive element (2) and electronic circuit board (3)) mounted in the base (1), thereby forming a more compact assembly.

[0091] As has also been described, the pressure measuring device comprises (see Figure 4c ) connector (15). The connector includes a central area (15a), a connecting nozzle (15b) and a tab (15c) or wedge.

[0092] Once the connector (15) is installed, the central area (15a) is arranged on the sleeve (14), the connection nozzle (15b) is arranged around the second end section (24b) of the connection pin (24), and the tab (15c) is captured between the sleeve (14) and the pressure-sensitive element (2), thereby applying a pressing action on the pressure-sensitive element (2), and the pressure-sensitive element is captured between the tab (15c) and the partition (5).

[0093] Finally, the pressure and temperature measuring device has a housing (16) which is configured to cover the first section (9') of the rod (9) and the sleeve (14). The housing (16) thus protects the device and provides compactness. The housing (16) is preferably made of metal.

[0094] The housing (16) comprises a central body (16') and a connecting section (16"). The central body (16') is configured to cover the sleeve (14), while the connecting section (16") is configured to cover the first section (9') of the rod (9) of the base (1).

[0095] The connecting section (16") of the housing (16) is preferably threaded to allow it to be threadedly connected to a corresponding orifice of a tank / reservoir / pipe.

[0096] Thus, once the housing (16) is assembled, the pressure measuring device presents (see Figure 6b ) is almost completely radially symmetrical, wherein the visible parts of the device are the central body (16') of the housing (16), the connecting section (16") of the housing (16) and the connecting nozzle (15b) of the connector (15). Likewise, the second section (9") of the rod (9) of the base (1) protrudes beyond the connecting section (16") of the housing (16) and is therefore also a visible part of the device.

[0097] It can thus be mentioned that there is a longitudinal axis (A) of the device (relative to which the terms upward, downward, upper, lower have been used), which at the same time represents an axis of (approximate) radial symmetry, with the exception of the axis relating to the second section (9") of the rod and the connecting nozzle (15b) of the connector (15), which has on one of its sides an upper tooth (15b') constituting a radially asymmetric element.

[0098] Preferably, the rod (9) has a completely cylindrical geometry in its first section (9') (optionally, as already mentioned, it can be prismatic) and a cylindrical geometry with a longitudinal section plane (or cylindrical section surface, as seen in the figure) in the second section (9"). Thus, an interleaving occurs between the first section (9') and the second section (9") of the rod, in which interleaving the duct (8) protrudes into the tank / reservoir / pipe (see Figure 4a ).

[0099] The separator (5) has a trapezoidal shape, with its inner plane (5') facing the electronic circuit board (3) and its outer plane (5") facing the pressure-sensitive element (2). The inner plane (5') is parallel to the longitudinal axis (A) of the device, while the outer plane (5") has a certain degree of inclination relative to the longitudinal axis (A) of the device. Therefore, the outer plane (5") forms a certain acute angle relative to the inner plane (5') of the separator (5). Simply by supporting the pressure-sensitive element (2) on the base (10) and allowing it to rest on the outer plane (5") of the separator (5), this inclination of the outer plane (5") relative to the longitudinal axis (A) of the device helps to position the pressure-sensitive element (2).

[0100] It should also be noted that the housing (16) preferably includes an annular recess (33) between the central body (16') and the connecting section (16"), said recess being configured to receive the sealing gasket (31).

[0101] A second sealing gasket (32) may also be arranged below the platform (19) of the base (1), between the housing (16) and the first section (9') of the rod (9).

[0102] According to a second alternative practical embodiment of the pressure and temperature measuring device (see Figure 7a 、 Figure 7b ), the contact device (20) is made in the form of a strip which opens its passage through the notch (14') of the sleeve (14) of the device to allow electrical connection between the electronic circuit board (3) and the housing (16) of the device.

[0103] Furthermore, for this second embodiment of the pressure and temperature measuring device, the connecting pins (24) are connected from the rear part of the base (1) to the electronic circuit board (3) without passing through said base (1) and (preferably) not passing through the electronic circuit board (3), but only against the electronic circuit board (3). The pins are inserted through the orifices (27) located at the upper and rear part of the sleeve (14).

[0104] As a design alternative, in this second embodiment, the first end section (24a) of the connecting pin (24) is positioned together with the first branch (24a') of the "C" shape inserted into the orifice (27) of the sleeve (14) and contacts the electronic circuit board (3) with the intervention of an elastic element (30) or spring configured to maintain a continuous electrical connection. For its part, the second branch (24a") of the "C" shape is embedded in a groove (28) of the sleeve (14) above the orifice (27).

[0105] According to a third alternative practical embodiment (see Figure 8 ), unlike the second embodiment, in the third alternative practical embodiment, the separator (5) has no stopper (22), and the recess (13) for accommodating the elastic contact element (12) is arranged above the housing (4) instead of being arranged below the housing (4) as in the first and second embodiments. Similarly, the circular portion of the pressure-sensitive element (2) is located in the lower part instead of being located in the upper part as in the second embodiment. In this third embodiment of the measuring device, the construction allows the outer plane (5") of the separator (5) to be more inclined or inclined to the horizontal, that is, the acute angle between the outer plane (5") and the inner plane (5') of the separator (5) is more open. This allows the overall height of the pressure measuring device to be reduced.

[0106] According to a fourth practical embodiment of the measuring device (see 9a and Figure 9b ), in which case the device has no temperature sensor and therefore the electronic circuit board (3) has no shaft (3"). In this embodiment, the rod (9) of the base (1) of the device has no second section (9") and no cavity (11), only the first section (9') is completely covered by the housing (16) of the device. The conduit (8) extends inside the rod (9) and connects the interior of the tank / reservoir / tube with the housing (4).

Claims

1. A pressure and temperature measuring device comprising a pressure-sensitive element (2), an electronic circuit board (3), connecting pins (24) and a housing (16), wherein the housing (16) comprises a central body (16') and a connecting section (16") configured to be connected to a tank, a reservoir or a pipe containing a fluid, wherein the device comprises a conduit (8) allowing a fluid connection between the fluid and the pressure-sensitive element (2), wherein the housing (16) comprises a generally prismatic and / or cylindrical elongated geometric shape defining a longitudinal axis (A), characterized in that The device comprises a base (1) having an elongated geometric shape, wherein the base (1) is configured to be arranged inside the housing (16) according to the longitudinal axis (A), and wherein the base (1) comprises a partition (5), a back (18), a platform (19) and a base (10), wherein the partition (5) comprises an inner plane (5') oriented toward the back (18) and parallel to the longitudinal axis (A) and an outer plane (5'') forming an acute angle with the inner plane (5'), wherein the back (18), the platform (19) and the base (10) are arranged in a manner similar to the embodiment of the present invention. and the inner plane (5') of the separator (5) defines a groove (17) oriented according to a plane parallel to the longitudinal axis (A) and configured to receive the electronic circuit board (3), and wherein the outer plane (5'') of the separator (5) defines a support surface, which is inclined relative to the longitudinal axis (A) and is configured to serve as a support together with the base (10) for the pressure-sensitive element (2), wherein the outer surface (5'') of the separator (5) includes an opening (7) leading to the duct (8).

2. The pressure and temperature measuring device according to claim 1, characterized in that The pressure and temperature measuring device comprises a sleeve (14) configured to cover the pressure-sensitive element (2), the partition (5), the groove (17), the electronic circuit board (3) and the back (18), thereby forming an armor between the element and the housing (16).

3. The pressure and temperature measuring device according to claim 1, characterized in that The base (1) comprises a rod (9) having a first section (9') configured to be arranged within the connecting section (16") of the housing, flush with the housing (16), wherein the duct (8) extends inside the first section (9') of the rod (9).

4. The pressure and temperature measuring device according to claim 3, characterized in that The rod (9) comprises a second section (9") extending beyond the connecting section (16") of the housing (16), wherein the base (1) has a cavity (11) arranged according to the longitudinal axis (A), wherein the cavity (11) extends alone along the second section (9") of the rod (9) and extends parallel to the pipe (8) along the first section (9') of the rod (9), wherein the cavity (11) has its blind end facing the interior of the tank / reservoir / tube, wherein the cavity (11) is configured to receive the shaft (3") of the electronic circuit board (3), wherein the shaft (3") comprises a temperature sensor.

5. The pressure and temperature measuring device according to any one of claims 1 to 4, characterized in that The pressure and temperature measuring device comprises contact means (20) configured to allow an electrical connection between the electronic circuit board (3) and the housing (16).

6. The pressure and temperature measuring device according to claim 5, characterized in that The contact device (20) is made by means of a spring arranged in a guide (21) of the base (1).

7. The pressure and temperature measuring device according to claim 5, characterized in that The contact device (20) is made in the form of a strip which is fixed to the electronic circuit board (3) and is configured to contact the housing (16) when the electronic circuit board (3) is inserted into the slot (17).

8. The pressure and temperature measuring device according to claim 2, characterized in that The connecting pin (24) comprises a first end section (24a) configured for connection to the electronic circuit board (3) and a second end section (24b) for connection to an external reading device or antenna, wherein the first end section (24a) comprises a "C"-shaped geometry, wherein a first branch (24a') of the "C" shape is configured for connection to the electronic circuit board (3), and a second branch (24a'') of the "C" shape engages with the second end section (24b) of the connecting pin (24).

9. The pressure and temperature measuring device according to claim 8, characterized in that The first branch (24a') of the "C" shape is configured to contact the electronic circuit board (3) by being inserted through a through hole (25) formed in the separator (5) and a through hole (26) of the electronic circuit board (3), and the second branch (24a") of the "C" shape is embedded in a notch (29) of the separator (5).

10. The pressure and temperature measuring device according to claim 8, characterized in that The first branch (24a') of the "C" shape is configured to contact the electronic circuit board (3) by being inserted through the aperture (27) of the sleeve (14) until contacting the electronic circuit board (3), and the second branch (24a") of the "C" shape is embedded in the groove (28) of the sleeve (14).

11. The pressure and temperature measuring device according to any one of claims 1 to 4, characterized in that The pressure and temperature measuring device comprises an elastic contact element (12) housed in a recess (13) of the partition (5), wherein the elastic contact element (12) is configured to exert a pressure action on the pressure-sensitive element (2) to allow the pressure-sensitive element (2) to maintain continuous electrical contact.

12. The pressure and temperature measuring device according to claim 11, characterized in that The recess (13) is located adjacent to the base (10), and wherein the pressure sensitive element (2) includes a flat edge configured to be arranged corresponding to the base (10) and a curved edge configured to be assembled with a stopper (22).

13. The pressure and temperature measuring device according to claim 11, characterized in that The recess (13) is located at an end of the partition (5) opposite to the base (10), and wherein the pressure-sensitive element (2) includes a curved edge and a flat edge, the curved edge being configured to be arranged corresponding to the base (10), and the flat edge being configured to be arranged corresponding to the end of the partition (5) opposite to the base (10).

14. The pressure and temperature measuring device according to claim 2, characterized in that The pressure and temperature measuring device includes a connector (15), the connector (15) having a central area (15a) configured to be arranged on the sleeve (14), a connection nozzle (15b) configured to be arranged around the connection pin (24), and a tab (15c) configured to be captured between the sleeve (14) and the pressure-sensitive element (2) so as to apply pressure to the pressure-sensitive element (2), the pressure-sensitive element (2) being captured between the tab (15c) and the partition (5).

15. The pressure and temperature measuring device according to any one of claims 1 to 4, characterized in that The separator (5) includes a housing (4) defining the opening (7) so that when the pressure-sensitive element (2) is supported on the separator (5), the housing (4) is covered by the pressure-sensitive element (2), the pressure-sensitive element (2) and the housing (4) of the separator (5) thereby defining a chamber configured to be flooded by the fluid.

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