CN115435844A - Temperature and pressure sensor - Google Patents
Temperature and pressure sensor Download PDFInfo
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- CN115435844A CN115435844A CN202211226328.6A CN202211226328A CN115435844A CN 115435844 A CN115435844 A CN 115435844A CN 202211226328 A CN202211226328 A CN 202211226328A CN 115435844 A CN115435844 A CN 115435844A
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- temperature sensing
- pressure
- pressure sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses a temperature and pressure sensor, which comprises an electrical connector and a shell, wherein the electrical connector and the shell enclose to form an installation cavity, a pressure sensing module, an injection molding base and a temperature sensing module are sequentially installed in the installation cavity along the direction from the electrical connector to the shell, and the temperature sensing module is connected with a thermistor; the temperature sensing module and the plastic bracket are integrally formed by injection molding to form a standard part. The invention designs a temperature and pressure sensor, and solves the problems that in the prior art, the sealing effect of a sealing ring is poor, the production efficiency is low and the product stability is poor due to the fact that an induction module is connected with an electric connector terminal through a lead.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a temperature and pressure sensor.
Background
The temperature and pressure sensor is an integrated sensor capable of measuring the pressure and temperature of a medium simultaneously. In the prior art, the temperature and pressure sensor has the following technical problems:
in the prior art, two lead wires of the thermistor penetrate through a through hole in the temperature sensing module and then are welded, the diameter of the through hole in the temperature sensing module is small, and the prior art only adopts one protective sleeve which is relatively long, so that the difficulty of the lead wires penetrating into the through hole is increased; for example, patent CN105466483A discloses a high-precision temperature and pressure sensor, in which a thermistor is sleeved with a thermistor protective sleeve, the thermistor protective sleeve is arranged in a through hole of a housing, the thermistor is connected with two thermistor connecting rods, the two thermistor connecting rods penetrate through a PCB and are connected with the PCB, only one protective sleeve is adopted in the patent, and the difficulty of an operator in penetrating a lead into the through hole can be increased.
In the prior art, the induction module is connected with the terminal of the electric connector through a lead, the connection mode has higher requirement on workers, more consumed working hours and low stability of the produced finished product; for example, patent CN114526771a discloses an integrated temperature and pressure sensor, in which a flexible circuit board is coupled above a temperature and pressure detection mechanism, and the flexible circuit board is connected with a terminal of an electrical connector through a lead; for another example, patent CN114427887a discloses a temperature and pressure sensor, in which a pressure sensing element is electrically connected to a flexible circuit board, and the flexible circuit board is connected to an electrical connector through a wire; the induction modules and the electric connector terminals of the patent CN114526771A and the patent CN114427887A are connected by wires, and compared with a mode of connecting by elastic pieces, the induction module and the electric connector terminals are low in production efficiency and poor in product stability.
In the prior art, often adopt the sealing washer to seal temperature pressure sensor, but do not do fine structural design to temperature pressure sensor among the prior art, the sealed effect that leads to the sealing washer is not very good, for example, what electrical connector adopted among the prior art is the drawing of patterns direction of drawing of patterns about, can leave the parting line on the sealed face of working of plastics, the sealed effect of sealing washer can be influenced to the arch that the parting line caused, for example again, the sealing washer often plays sealed effect between plastics support and shell among the prior art, and the surface roughness and the roughness of the working of plastics of ordinary injection moulding are difficult to handle the accuse among the prior art, be unfavorable for the sealed effect of sealing washer.
Disclosure of Invention
The present invention provides a temperature and pressure sensor, which is directed to overcome the above-mentioned shortcomings of the prior art.
In order to achieve the above purpose, the specific technical scheme of the temperature and pressure sensor of the invention is as follows:
a temperature and pressure sensor comprises an electrical connector and a shell, wherein the electrical connector and the shell form an installation cavity in an enclosing mode, a pressure sensing module, an injection molding base and a temperature sensing module are sequentially installed in the installation cavity along the direction from the electrical connector to the shell, and the temperature sensing module is connected with a thermistor; the temperature sensing module and the plastic bracket are integrally formed by injection molding to form a standard part.
Furthermore, the temperature sensing module comprises a lead arranged on the surface of the temperature sensing module, and a welding spot and a contact which are connected with the lead;
the thermistor comprises two thermistor leads and a temperature sensing probe connected to the tail ends of the thermistor leads;
the thermistor lead wire penetrates through the temperature sensing module and is welded with a welding spot on the temperature sensing module;
the lateral surface and the shell butt of the base of moulding plastics, the upper portion and the forced induction module butt of the medial surface of the base of moulding plastics, the lower part and the temperature-sensing module butt of the medial surface of the base of moulding plastics, the base of moulding plastics is seted up with the first vertical through-hole that the contact on the temperature-sensing module aligns, electrical connector is equipped with the electrical connector terminal.
Furthermore, wear to be equipped with first shell fragment in the first vertical through-hole, the one end of first shell fragment is inconsistent with the contact on the temperature-sensing module, and the other end and the electric connector terminal of first shell fragment are inconsistent.
Further, in the case where the dielectric has conductivity, the conductive line is covered with an insulating layer made by a thick film process.
Furthermore, the wire on the temperature-sensing module is made by adopting a thick film process, the thickness of the wire is less than or equal to 5 micrometers, the bottom surface of the pressure-sensing module, the inner side surface of the injection molding base and the top surface of the temperature-sensing module form an accommodating cavity, and a second sealing ring is arranged in the accommodating cavity and used for sealing between the temperature-sensing module and the pressure-sensing module.
Furthermore, the plastic support is connected with a protective sleeve in a buckling connection mode, the protective sleeve is of an opening structure or a closed structure, and the thermistor is embedded in the protective sleeve;
the outer side wall of the plastic support is provided with a pressure inlet groove, the side wall of the protective sleeve, which is positioned below the plastic support, is provided with a pressure inlet hole, and the pressure inlet hole and the pressure inlet groove are matched to form a medium channel for enabling the pressure of a medium to be detected to act on the pressure sensing module through the medium channel; the pressure sensing module and the temperature sensing module are ceramic modules.
Further, the inner cavities of the plastic bracket and the protective sleeve are filled with insulating glue; the part of the plastic bracket protruding out of the temperature sensing module and the upper surface of the temperature sensing module are enclosed to form a cofferdam, and the cofferdam is used for accommodating and protecting welding spots and partial circuits arranged on the upper surface of the temperature sensing module; insulating glue is poured into the cofferdam and used for protecting welding spots arranged on the upper surface of the temperature sensing module under the condition that the medium has conductivity.
Furthermore, the shell is provided with a mounting groove, and a first sealing ring is mounted in the mounting groove and used for sealing between the temperature sensing module and the shell;
the electric connector is made by a demoulding mode of up-down demoulding, the inclined plane at the lower end of the electric connector, the inclined plane at the upper end of the injection moulding base and the shell enclose to form a sealing groove, and a third sealing ring is arranged in the sealing groove.
Furthermore, the shell is a metal shell, the injection molding base is provided with a second vertical through hole, a second elastic sheet penetrates through the second vertical through hole, the pressure sensing module is provided with a conductive part, and one end of the second elastic sheet is in contact with the conductive part and is used for being in contact with a grounding end on the pressure sensing module; the other end of the second elastic sheet penetrates through a second vertical through hole in the injection molding base to be in contact with the shell, and the second elastic sheet is used for achieving the effect of grounding of the metal shell.
Further, be equipped with the third shell fragment between forced induction module and the electric connector, the surface of forced induction module is equipped with the pressure module circuit, and the lower extreme of electric connector is equipped with the installation cavity, and the one end welding of third shell fragment is in the installation cavity of electric connector, and the other end of third shell fragment connects the input/output terminal of forced induction module.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the temperature sensing module and the plastic bracket are integrally injection-molded to form a standard part, the plastic bracket is connected with a protective sleeve in a buckling connection mode, and the thermistor is embedded in the protective sleeve; the plastic bracket and the temperature sensing module are used as a standard component, so that the plastic bracket and the temperature sensing module have the advantages of reliable structure and firm connection, and the buckle connection has the advantages of firm connection, simple installation and disassembly and capability of improving the working efficiency; the plastic support and the protective sleeve are connected in a buckling connection mode; such a design has the following advantages: (1) The temperature probe can adapt to different application environments, and for the application environments with different depths of the temperature probe penetrating into the measured medium, the plastic bracket and the temperature sensing module are used as standard parts and are not changed, and the temperature probe can adapt to different use depths only by changing the length of the protective sleeve; (2) The protective sleeve can meet different structural requirements of customers on the protective sleeve, and the protective sleeve can be an open structure or a closed structure; (3) The plastic support and the temperature sensing module are injected together, two leads of the thermistor are welded with the temperature sensing module, the two leads of the thermistor need to penetrate through a through hole in the temperature sensing module, the size of the protective sleeve and the thermistor is small, the diameter of the through hole is small, if only one protective sleeve is adopted, the length of the protective sleeve is relatively long, the difficulty of the leads penetrating into the through hole is increased, after the structure that the plastic support and the protective sleeve are adopted, the leads penetrate through the plastic support firstly and then penetrate into the through hole in the temperature sensing module, and then the plastic support is connected with the protective sleeve in a buckling mode, so that the difficulty of the leads penetrating into the hole is greatly reduced, and the working efficiency is improved; (4) The plastic support and the protective sleeve can play a role in protecting the thermistor;
2. in the invention, the upper part of the plastic bracket protrudes out of the upper surface of the temperature sensing module, the protruding part of the plastic bracket and the upper surface of the temperature sensing module form a cofferdam, and the cofferdam is used for accommodating and protecting welding spots and partial circuits arranged on the upper surface of the temperature sensing module; insulating glue is poured into the cofferdam and used for protecting welding spots arranged on the upper surface of the temperature sensing module under the condition that the medium has conductivity;
3. in the invention, the ceramic module is connected with the terminal of the electric connector through the elastic sheet so as to provide the stability of the product, which comprises the following specific steps: (1) The first elastic sheet is connected with a contact on the temperature sensing module and an electric connector terminal, and a temperature signal is transmitted to the electric connector from a medium; compared with the technical scheme in the prior art, the first elastic sheet is convenient to operate, and the communication of a circuit can be ensured only by placing the first elastic sheet at a correct position; (2) The shell and the conductive part of the pressure sensing module are connected through the second elastic sheet, so that the metal shell can be grounded; (3) The pressure sensing module and the electric connector are connected through the third elastic sheet to form a loop;
4. in the invention, the structural design of the temperature and pressure sensor is optimized, the sealing effect of the sealing ring is enhanced, the structural design in the prior art can cause the sealing ring to play a sealing role between a plastic support and a shell, and compared with ceramics, the plastics have large planeness and roughness and are unfavorable for the sealing effect of the sealing ring; moreover, the structure of the electric connector is manufactured in a mode of vertically demoulding, so that the problem that the sealing effect of the sealing ring is influenced by the bulge caused by parting lines is solved; then, the inclined plane of electrical connector lower extreme, the inclined plane and the shell of the base upper end of moulding plastics enclose synthetic sealed slot, install the third sealing washer in the sealed slot, and the design of sealed slot can make the inseparabler laminating of sealing washer, has strengthened sealed effect, and the benefit that sets up the third sealing washer does: (1) Sealing to prevent foreign matters in the environment from entering the sensor; (2) The rotation is prevented, and the relative rotation between the electrical connector and the housing is prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the present invention in another orientation;
FIG. 4 is a schematic structural diagram of the connection between the temperature sensing module and the thermistor according to the present invention;
FIG. 5 is a schematic illustration of a parting line of a prior art electrical connector;
FIG. 6 is a cross-sectional view (open structure) of the standard part of the temperature sensing module and the plastic bracket according to the present invention, connected to the thermistor;
FIG. 7 is a schematic perspective view of the pressure inlet groove and the pressure inlet hole of the present invention;
FIG. 8 is a cross-sectional view of the protective sheath of the present invention in a closed configuration;
FIG. 9 is a top view of a temperature sensing module of the present invention;
FIG. 10 is a schematic top view of a temperature sensing module with an insulating layer according to the present invention;
FIG. 11 is a schematic view of an insulating layer in the present invention;
FIG. 12 is a cross-sectional view of a standard component of the temperature sensing module and plastic bracket of the present invention;
FIG. 13 is a schematic perspective view of the connection between the temperature sensing module and the thermistor according to the present invention;
FIG. 14 is a perspective view of a standard component formed by a temperature sensing module and a plastic frame according to the present invention;
the notation in the figure is:
1. an electrical connector; 101. an electrical connector terminal;
2. a pressure sensing module; 3. a third seal ring; 4. injection molding the base; 5. a second seal ring;
6. a temperature sensing module; 601. welding spots; 602. a contact; 603. a wire;
7. a first seal ring; 8. a plastic support; 9. a protective sleeve;
10. a thermistor; 1001. a thermistor lead; 1002. a temperature sensing probe;
11. a pressure inlet groove; 12. a housing; 13. a first spring plate; 14. a second elastic sheet; 15. a third elastic sheet; 16. mounting a groove; 17. coffering; 18. a pressure inlet hole; 19. an insulating layer.
Detailed Description
For a better understanding of the objects, structure and function of the invention, a temperature and pressure sensor according to the present invention will be described in more detail with reference to the accompanying drawings and preferred embodiments.
In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate orientations or positional relationships based on those shown in the drawings, only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, "first", "second", etc. do not represent an important degree of the component, and thus, are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
Example 1:
referring to fig. 1-14, the present invention provides a technical solution: a temperature and pressure sensor comprises an electrical connector 1 and a shell 12, wherein the electrical connector 1 and the shell 12 enclose to form an installation cavity, a pressure sensing module 2, an injection molding base 4 and a temperature sensing module 6 are sequentially installed in the installation cavity along the direction from the electrical connector 1 to the shell 12, and the temperature sensing module 6 is connected with a thermistor 10; the temperature sensing module 6 and the plastic support 8 are integrally injection-molded to form a standard part, and the plastic support 8 and the temperature sensing module 6 are used as the standard part and have the advantages of reliable structure and firm connection.
Further, the temperature sensing module 6 comprises a lead 603 arranged on the surface thereof, and a solder joint 601 and a contact 602 connected with the lead 603, which can effectively ensure circuit communication;
the thermistor 10 comprises two thermistor leads 1001 and a temperature sensing probe 1002 connected to the tail end of the thermistor leads 1001, and the temperature sensing probe 1002 of the thermistor 10 contacts a measured medium, so that the transmission of a temperature signal from the medium to the electronic connector 1 is realized;
the thermistor lead 1001 penetrates through the temperature sensing module 6 and is welded with a welding point 601 on the temperature sensing module 6;
the conductive lines 603 are covered with an insulating layer 19 made by a thick film process, see fig. 10-11;
the lateral surface and the shell 12 butt of base 4 of moulding plastics, the upper portion and the 2 butts of forced induction module of the medial surface of base 4 of moulding plastics, the lower part and the 6 butts of temperature-sensing module of the medial surface of base 4 of moulding plastics, base 4 of moulding plastics sets up the first vertical through-hole that aligns with contact 602 on the temperature-sensing module 6, electrical connector 1 is equipped with electrical connector terminal 101.
Further, a first elastic sheet 13 penetrates through the first vertical through hole, one end of the first elastic sheet 13 is abutted against the contact 602 on the temperature sensing module 6, the other end of the first elastic sheet 13 is abutted against the electric connector terminal 101, and a temperature signal is transmitted to the electronic connector 1 through the connection of the first elastic sheet 13; and technical scheme among the prior art is moulded plastics for thermistor and terminal together in the plastics support, and the terminal of plastics support is linked together through the welding with FPC between with electric connector's the terminal, compares prior art technical scheme, and first shell fragment 13 convenient operation of this application only needs to put first shell fragment 13 in the exact position, can guarantee the UNICOM of circuit.
Further, in the case where the medium has conductivity, the wire 603 is covered with an insulating layer 19 made by a thick film process.
Furthermore, the welding spot 601 and the contact 602 connected by the wire 603 on the temperature sensing module 6 are both made by thick film technology, the thickness is less than or equal to 5 micrometers, the bottom surface of the pressure sensing module 2, the inner side surface of the injection molding base 4 and the top surface of the temperature sensing module 6 form an accommodating cavity, and a second sealing ring 5 is installed in the accommodating cavity and used for sealing between the temperature sensing module 6 and the pressure sensing module 2; the thin thickness of the conductor 603, which is produced by a thick-film process, has little effect on the sealing effect of the second sealing ring 5.
Furthermore, the plastic support 8 is connected with the protective sleeve 9 in a buckling connection mode, and the buckling connection has the advantages of firm connection, simplicity in installation and disassembly and capability of improving the working efficiency; the thermistor 10 is embedded in the protective sleeve 9;
the advantages of providing the plastic support 8 and the protective sleeve 9 are:
(1) The temperature probe can adapt to different application environments, and for the application environments with different depths of the temperature probe penetrating into the measured medium, the plastic bracket 8 and the temperature sensing module 6 are used as standard parts and are unchanged, and the different use depths are adapted only by changing the length of the protective sleeve 9, specifically please refer to fig. 5;
(2) Different structural requirements of customers on the protective sleeve 9 can be met, the protective sleeve 9 can be an opening structure, and specific reference is made to fig. 6; the protective sleeve 9 may be a closed structure, please refer to fig. 8 specifically; of course, the structure of the protective sheath 9 is not limited to the above-described structure;
(3) The plastic support 8 and the temperature sensing module 6 are injected together, two leads of the thermistor 10 are welded with the temperature sensing module 6, the two leads of the thermistor 10 need to penetrate through a through hole in the temperature sensing module 6, the size of the protective sleeve 9 and the thermistor 10 is small, the diameter of the through hole is small, if only one protective sleeve 9 is adopted, the length of the protective sleeve 9 is relatively long, the difficulty of the leads penetrating into the through hole can be increased, after the structure that the plastic support 8 and the protective sleeve 9 are adopted, the leads penetrate through the plastic support 8 firstly and then penetrate through the through hole in the temperature sensing module 6, and then the plastic support 8 is connected with the protective sleeve 9 in a buckling mode, so that the difficulty of the leads penetrating into the hole can be greatly reduced, and the working efficiency is improved;
(4) The plastic support 8 and the protective sleeve 9 can protect the thermistor 10;
the outer side wall of the plastic support 8 is provided with a pressure inlet groove 11, the side wall of the protective sleeve 9 below the plastic support 8 is provided with a pressure inlet hole 18, and the pressure inlet hole 18 is matched with the pressure inlet groove 11 to form a medium channel for applying the pressure of the measured medium to the pressure sensing module 2 through the medium channel; the pressure sensing module 2 and the temperature sensing module 6 are ceramic modules.
Further, the inner cavities of the plastic bracket 8 and the protective sleeve 9 are filled with insulating glue; the part of the plastic bracket 8 protruding out of the temperature sensing module 6 and the upper surface of the temperature sensing module 6 enclose a cofferdam 17, and the cofferdam 17 is used for accommodating and protecting welding spots and partial circuits arranged on the upper surface of the temperature sensing module 6; insulating glue is poured into the cofferdam 17 and used for protecting welding spots arranged on the upper surface of the temperature sensing module 6 under the condition that the medium has conductivity.
Further, the housing 12 is provided with a mounting groove 16, and a first sealing ring 7 is mounted in the mounting groove 16 and used for sealing between the temperature sensing module 6 and the housing 12; the technical scheme in the prior art is as follows: the sealing O-shaped ring plays a sealing role between the plastic support and the shell, compared with the ceramic, the plastic has large planeness and roughness and is unfavorable for the sealing effect of the sealing O-shaped ring, the surface roughness and the flatness of a plastic piece formed by common injection molding in the prior art are difficult to control, and the surface roughness of the ceramic piece is ground to have better surface roughness and flatness;
the electrical connector 1 is manufactured by a demoulding mode of demoulding up and down, an inclined plane at the lower end of the electrical connector 1, an inclined plane at the upper end of the injection molding base 4 and the shell 12 enclose to form a sealing groove, and a third sealing ring 3 is arranged in the sealing groove;
the third seal ring 3 functions as:
(1) Sealing to prevent foreign matters in the environment from entering the sensor;
(2) Rotation prevention, preventing relative rotation between the electrical connector 1 and the housing 12;
in the prior art, the electric connector is usually sealed in the radial direction by adopting a sealing O-shaped ring, the electric connector adopts a demolding direction for demolding from left to right, parting lines can be left on the sealing surface of a plastic part, and the sealing effect of the sealing ring can be influenced by the bulge caused by the parting lines; the electric connector 1 in the application adopts a demoulding mode of demoulding up and down, and parting lines do not exist on the surfaces of the electric connector 1 and the injection molding base 4, which are contacted with the third sealing ring 3, so that the sealing effect is good; and the inclined plane of the lower end of the electric connector 1, the inclined plane of the upper end of the injection molding base 4 and the triangular area formed by assembling and matching the shell 12 provide a sealing groove for the third sealing ring 3, so that the third sealing ring 3 can be attached more closely.
Further, the housing 12 is a metal housing, the injection molding base 4 is provided with a second vertical through hole, a second elastic sheet 14 penetrates through the second vertical through hole, the pressure sensing module 2 is provided with a conductive part, and one end of the second elastic sheet 14 is in contact with the conductive part and is used for contacting a grounding end on the pressure sensing module 2; the other end of the second elastic sheet 14 penetrates through a second vertical through hole in the injection molding base 4 to be in contact with the shell 12, and the second elastic sheet is used for achieving the grounding effect of the metal shell.
Further, be equipped with third shell fragment 15 between forced induction module 2 and the electric connector 1, through the 15 contact intercommunications of third shell fragment between circuit on the forced induction module 2 and the electric connector 1, the surface of forced induction module 2 is equipped with the pressure module circuit, the lower extreme of electric connector 1 is equipped with the installation cavity, the one end welding of third shell fragment 15 is in the installation cavity of electric connector 1, the other end connection forced induction module 2's of third shell fragment input/output terminal.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A temperature-pressure sensor, characterized by: the electric connector comprises an electric connector (1) and a shell (12), wherein the electric connector (1) and the shell (12) enclose to form a mounting cavity, a pressure sensing module (2), an injection molding base (4) and a temperature sensing module (6) are sequentially mounted in the mounting cavity along the direction from the electric connector (1) to the shell (12), and the temperature sensing module (6) is connected with a thermistor (10); the temperature sensing module (6) and the plastic bracket (8) are integrally formed by injection molding to form a standard part.
2. Temperature-pressure sensor according to claim 1, characterized in that the temperature sensing module (6) comprises a conducting wire (603) arranged on its surface and a solder point (601) and a contact (602) connected to the conducting wire (603);
the thermistor (10) comprises two thermistor leads (1001) and a temperature sensing probe (1002) connected to the tail ends of the thermistor leads (1001);
the thermistor lead wire (1001) penetrates through the temperature sensing module (6) and is welded with a welding point (601) on the temperature sensing module (6);
the lateral surface and the shell (12) butt of base (4) of moulding plastics, the upper portion and the forced induction module (2) butt of the medial surface of base (4) of moulding plastics, the lower part and the temperature-sensing module (6) butt of the medial surface of base (4) of moulding plastics, base (4) of moulding plastics is seted up with the first vertical through-hole that contacts (602) on the temperature-sensing module (6) align, electrical connector (1) is equipped with electrical connector terminal (101).
3. The temperature and pressure sensor according to claim 2, wherein a first elastic sheet (13) penetrates through the first vertical through hole, one end of the first elastic sheet (13) is abutted against a contact (602) on the temperature sensing module (6), and the other end of the first elastic sheet (13) is abutted against the electrical connector terminal (101).
4. Temperature pressure sensor according to claim 2, characterized in that the wire (603) is covered with an insulating layer (19) made by thick film process in case the medium is conductive.
5. The temperature and pressure sensor according to claim 2, wherein the lead (603) of the temperature sensing module (6) is made by thick film process, the bottom surface of the pressure sensing module (2), the inner side surface of the injection molding base (4) and the top surface of the temperature sensing module (6) form a containing cavity, and a second sealing ring (5) is installed in the containing cavity and used for sealing between the temperature sensing module (6) and the pressure sensing module (2).
6. The temperature and pressure sensor according to claim 1, wherein the plastic support (8) is connected with a protective sleeve (9) in a snap-fit connection manner, the protective sleeve (9) is of an open structure or a closed structure, and the thermistor (10) is embedded in the protective sleeve (9);
the outer side wall of the plastic support (8) is provided with a pressure inlet groove (11), the side wall of the protective sleeve (9) below the plastic support (8) is provided with a pressure inlet hole (18), and the pressure inlet hole (18) is matched with the pressure inlet groove (11) to form a medium channel for applying the pressure of a measured medium to the pressure sensing module (2) through the medium channel; the pressure sensing module (2) and the temperature sensing module (6) are ceramic modules.
7. The temperature and pressure sensor according to claim 6, characterized in that the inner cavities of the plastic support (8) and the protective sleeve (9) are filled with insulating glue; a cofferdam (17) is formed by enclosing the part of the plastic bracket (8) protruding out of the temperature sensing module (6) and the upper surface of the temperature sensing module (6), and the cofferdam (17) is used for accommodating and protecting welding spots and partial circuits arranged on the upper surface of the temperature sensing module (6); insulating glue is poured into the cofferdam (17) and used for protecting welding spots arranged on the upper surface of the temperature sensing module (6) under the condition that the medium has conductivity.
8. The temperature and pressure sensor according to claim 1, wherein the housing (12) is provided with a mounting groove (16), and a first sealing ring (7) is mounted in the mounting groove (16) and used for sealing between the temperature sensing module (6) and the housing (12);
the electric connector (1) is made by a demoulding mode of up-down demoulding, a sealing groove is enclosed by the inclined plane at the lower end of the electric connector (1), the inclined plane at the upper end of the injection moulding base (4) and the shell (12), and a third sealing ring (3) is arranged in the sealing groove.
9. The temperature and pressure sensor according to claim 1, wherein the housing (12) is a metal housing, the injection molding base (4) is provided with a second vertical through hole, a second elastic sheet (14) penetrates through the second vertical through hole, the pressure sensing module (2) is provided with a conductive part, and one end of the second elastic sheet (14) contacts the conductive part and is used for contacting a grounding end on the pressure sensing module (2); the other end of the second elastic sheet (14) penetrates through a second vertical through hole in the injection molding base (4) to be in contact with the shell (12) and is used for achieving the grounding effect of the metal shell.
10. The temperature and pressure sensor according to claim 1, wherein a third elastic sheet (15) is arranged between the pressure sensing module (2) and the electrical connector (1), a pressure module circuit is arranged on the surface of the pressure sensing module (2), an installation cavity is arranged at the lower end of the electrical connector (1), one end of the third elastic sheet (15) is welded in the installation cavity of the electrical connector (1), and the other end of the third elastic sheet (15) is connected with an input/output terminal of the pressure sensing module (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226328.6A CN115435844A (en) | 2022-10-09 | 2022-10-09 | Temperature and pressure sensor |
| PCT/CN2023/075436 WO2024077820A1 (en) | 2022-10-09 | 2023-02-10 | Temperature and pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226328.6A CN115435844A (en) | 2022-10-09 | 2022-10-09 | Temperature and pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115435844A true CN115435844A (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211226328.6A Pending CN115435844A (en) | 2022-10-09 | 2022-10-09 | Temperature and pressure sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115435844A (en) |
| WO (1) | WO2024077820A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116972915A (en) * | 2023-09-25 | 2023-10-31 | 广东润宇传感器股份有限公司 | Integral pressure and temperature transmitter |
| WO2024077820A1 (en) * | 2022-10-09 | 2024-04-18 | 无锡莱顿电子有限公司 | Temperature and pressure sensor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692769A (en) * | 2018-06-01 | 2018-10-23 | 无锡莱顿电子有限公司 | A kind of temperature pressure combinations sensor |
| JP6656336B1 (en) * | 2018-10-24 | 2020-03-04 | 三菱電機株式会社 | Temperature sensor device |
| CN110068416A (en) * | 2019-05-28 | 2019-07-30 | 无锡莱顿电子有限公司 | A kind of pressure and temp combination sensor |
| CN114636512A (en) * | 2020-12-15 | 2022-06-17 | 浙江三花汽车零部件有限公司 | Sensor assembly and valve device |
| CN113514108A (en) * | 2021-08-16 | 2021-10-19 | 无锡莱顿电子有限公司 | Sensor structure |
| CN113566895A (en) * | 2021-08-16 | 2021-10-29 | 无锡莱顿电子有限公司 | Temperature and pressure sensor |
| CN114323329A (en) * | 2021-12-29 | 2022-04-12 | 曲阜天博汽车零部件制造有限公司 | Temperature and pressure sensor and signal frame for communication of temperature and pressure sensor |
| CN114427886A (en) * | 2022-01-20 | 2022-05-03 | 孝感华工高理电子有限公司 | Quick temperature-sensing square capacitive temperature and pressure sensor |
| CN114427887A (en) * | 2022-01-20 | 2022-05-03 | 孝感华工高理电子有限公司 | Temperature and pressure sensor |
| CN115096377B (en) * | 2022-08-25 | 2022-11-25 | 无锡胜脉电子有限公司 | Temperature and pressure sensor and assembly process of temperature sensing assembly thereof |
| CN115435844A (en) * | 2022-10-09 | 2022-12-06 | 无锡莱顿电子有限公司 | Temperature and pressure sensor |
-
2022
- 2022-10-09 CN CN202211226328.6A patent/CN115435844A/en active Pending
-
2023
- 2023-02-10 WO PCT/CN2023/075436 patent/WO2024077820A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024077820A1 (en) * | 2022-10-09 | 2024-04-18 | 无锡莱顿电子有限公司 | Temperature and pressure sensor |
| CN116972915A (en) * | 2023-09-25 | 2023-10-31 | 广东润宇传感器股份有限公司 | Integral pressure and temperature transmitter |
| CN116972915B (en) * | 2023-09-25 | 2023-12-19 | 广东润宇传感器股份有限公司 | Integral pressure and temperature transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024077820A1 (en) | 2024-04-18 |
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