CN218330293U - Direct-insertion type air temperature sensor - Google Patents
Direct-insertion type air temperature sensor Download PDFInfo
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- CN218330293U CN218330293U CN202222288744.0U CN202222288744U CN218330293U CN 218330293 U CN218330293 U CN 218330293U CN 202222288744 U CN202222288744 U CN 202222288744U CN 218330293 U CN218330293 U CN 218330293U
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Abstract
The utility model discloses a formula air temperature sensor cut straightly, which comprises a housin, the one end of casing is fixed with the metal inserted sheet, the one end of metal inserted sheet is fixed in the casing, and the other end exposes in the air, the other end of casing is fixed with temperature sensing device, temperature sensing device's temperature sensing portion exposes in the air, and the partly of temperature sensing device's lead-out wire is fixed in the casing, and is connected with the metal inserted sheet of fixing in the casing. The utility model discloses an air temperature sensor is inside or directly exposes in the air through embedding object cavity, and real time monitoring temperature and feedback are in order to reach accurate accuse temperature to make temperature control system make the quick response. And the shell is fixed on the temperature control equipment through a buckle structure, so that the installation and the disassembly are convenient.
Description
Technical Field
The utility model belongs to the technical field of the sensor, concretely relates to formula air temperature sensor cut straightly.
Background
With the rapid development of interconnection and intelligent manufacturing of everything, the aim of building comfortable and intelligent life and working environment promotes the continuous increase of the market demand of the sensor, so that the high-speed development of the application field of the temperature sensor is brought, the technical requirements are also continuously improved, and the air temperature detection technology becomes a technical difficulty which is contended by various manufacturers.
There are many air temperature sensor among the prior art, but the general structure is more complicated, and the temperature sensing head is installed inside the casing, and the secondary encapsulation causes the temperature transmission decay to make reaction time descend, and current air temperature sensor still has the inconvenient problem of installation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a cut straightly formula air temperature sensor, it can cut straightly the object intracavity, and during the direct exposed air of temperature sensing head, air temperature in the measurement object cavity reached accurate temperature measurement, and its quick detachable installation.
The technical scheme of the utility model is realized like this: the utility model discloses a cut straightly formula air temperature sensor, which comprises a housin, the one end of casing is fixed with the metal inserted sheet, the one end of metal inserted sheet is fixed in the casing, and the other end exposes in the air, the other end of casing is fixed with the temperature sensing device, the temperature sensing portion of temperature sensing device exposes in the air, and the lead-out wire part of temperature sensing device is fixed in the casing, and is connected with the metal inserted sheet of fixing in the casing.
Further, the temperature sensing device comprises a thermistor, two pins of the thermistor are respectively connected with two outgoing lines in a one-to-one correspondence manner, a packaging part is wrapped outside the thermistor, one end of the outgoing line connected with the thermistor is also wrapped in the packaging part to form a temperature sensing part, the two outgoing lines of the temperature sensing device are respectively connected with two metal insertion pieces in a one-to-one correspondence manner, a distance is arranged between the two outgoing lines, and a distance is arranged between the two metal insertion pieces.
Furthermore, one end of the outgoing line of the temperature sensing device, which is far away from the temperature sensing part, is fixed in the shell, and the temperature sensing part of the temperature sensing device is positioned outside the shell.
Furthermore, the casing is provided with a protective cover, the protective cover covers the temperature sensing part of the temperature sensing device, and the protective cover is designed in a hollow mode, so that the temperature sensing part of the temperature sensing device is exposed in the air.
Furthermore, the shell is an injection molding shell, and the outgoing line of the temperature sensing device and the metal insert are partially encapsulated inside the injection molding shell through an injection molding process; two lead-out wires of temperature sensing device and two metal inserted sheets one-to-one correspondence welded connection.
Furthermore, one end of the shell, which is far away from the temperature sensing part of the temperature sensing device, is provided with a butt joint.
Furthermore, the one end of metal inserted sheet is fixed in the casing, and the other end of metal inserted sheet extends the terminal surface of casing, be equipped with the interface lateral wall that ring metal inserted sheet set up on the terminal surface of casing, form the interface.
Further, the outer wall of the shell is provided with an external thread or a buckling structure.
Further, when the casing outer wall sets up buckle structure, buckle structure sets up on the circumference outer wall of casing, buckle structure includes the draw-in groove that multistage ring shell circumference set up, the one end opening of draw-in groove, the other end of draw-in groove seals, and the open end of first draw-in groove corresponds the blind end of second draw-in groove in two adjacent draw-in grooves, is equipped with the slot along shell axial extension between the open end of first draw-in groove and the blind end of second draw-in groove in two adjacent draw-in grooves, and the shell terminal surface is run through to the axial one end of slot, and one side of slot communicates with the opening of first draw-in groove.
Furthermore, the open end of draw-in groove is equipped with the stopper, and the stopper is located outside the draw-in groove, but is close to the open end of draw-in groove.
The utility model discloses following beneficial effect has at least: the utility model discloses an air temperature sensor is through embedding the inside or directly exposing in the air of object cavity, and real time monitoring temperature and feedback are in order to reach accurate accuse temperature to make temperature control system make the quick response.
The utility model discloses can the real-time temperature measurement of disect insertion object intracavity to reach accurate temperature measurement and quick temperature sensing, its simple structure, sensitivity is high, and interchangeability is good, low in manufacturing cost, and is small, and the installation, dismantlement operation are simple and easy, and be liable to change, and the installation space requires lowly, the stable performance, environmental protection safety, the application temperature interval is wide. The temperature sensing device directly exposes in the air, can the direct measurement air temperature, and can accurate feedback, intelligent control, safety and long service life.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a cross-sectional view of an in-line air temperature sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a direct-insert air temperature sensor provided by an embodiment of the present invention;
FIG. 3 is a schematic view of FIG. 2 taken along line A;
fig. 4 is a perspective view of an in-line air temperature sensor according to an embodiment of the present invention;
fig. 5 is another perspective view of an in-line air temperature sensor according to an embodiment of the present invention.
In the attached drawing, 11 is a first metal insertion sheet, 12 is a second metal insertion sheet, 2 is a shell, 21 is an interface side wall, 22 is a clamping groove, 23 is a slot, 24 is a limiting block, 25 is a guide inclined plane, 26 is a protective cover, 27 is a first cylindrical section, 28 is a second cylindrical section, 29 is a third cylindrical section, 31 is a first insertion sheet connection welding spot, 32 is a second insertion sheet connection welding spot, 4 is a temperature sensing device, 41 is a first outgoing line, 42 is a second outgoing line, 43 is epoxy resin, 44 is a first chip connection welding spot, 45 is a second chip connection welding spot, and 46 is a thermistor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.
Example one
Referring to fig. 1 to 5, the embodiment of the utility model discloses a cut straightly formula air temperature sensor, including casing 2, the one end of casing 2 is fixed with two metal inserted sheets, the one end of metal inserted sheet is fixed in casing 2, and the other end exposes in the air, the other end of casing 2 is fixed with temperature sensing device 4, temperature sensing device 4's temperature sensing portion exposes in the air, and the partly of two lead-out wires of temperature sensing device 4 are fixed in casing 2, and two lead-out wires of temperature sensing device 4 are connected with two metal inserted sheets one-to-one fixed in casing 2 respectively.
Be equipped with interval and mutual insulation between two lead-out wires, be equipped with interval and mutual insulation between two metal inserted sheets. The outgoing line is an insulated metal wire, has good voltage-resistant insulating property and can resist high temperature of 200 ℃, and wire core parts at two ends of the wire body are exposed. Wherein one end of the first outgoing line 41 is connected to the first metal tab 11 through the first tab connection pad 31, and the other end of the first outgoing line 41 is connected to one end of the thermistor 46 or NTC chip through the first chip connection pad 71. One end of the second outgoing line 42 is connected with the second metal insert 12 through the second insert connecting solder 32, and the other end of the second outgoing line 42 is connected with the other end of the thermistor 46 or the NTC chip through the second chip connecting solder 72, so as to connect the temperature sensing device 4 with the control circuit through the first metal insert 11 and the second metal insert 12.
Further, the temperature sensing device 4 includes a thermistor 46 or an NTC chip, two pins of the thermistor 46 are respectively connected with two outgoing lines in a one-to-one correspondence manner, a package is wrapped outside the thermistor 46, and one end of the outgoing line connected with the thermistor 46 is also wrapped in the package to form a temperature sensing portion.
The package may employ an epoxy 43. The epoxy resin 43 has good thermal conductivity, sealability and moisture resistance and good bondability with the insulated metal wire, and the internal resistance is much smaller than that of the NTC chip. Of course, other materials with properties similar to epoxy 43 may be used for the package.
The NTC chip and the two lead-out wires of the present embodiment are connected by the first chip connection pad 71 and the second chip connection pad 72, respectively, and then encapsulated by the epoxy resin 43, so as to achieve good sealing performance.
The first chip connection welding point 71, the second chip connection welding point 72, the first insert sheet connection welding point 31 and the second insert sheet connection welding point 32 have good connection stability, and the welding points cover more than 95% of the welding part surfaces of the first metal insert sheet 11 and the second metal insert sheet 12 and the two electrode surfaces of the NTC chip to ensure stable connection.
The first metal inserting sheet 11 and the second metal inserting sheet 12 have high temperature resistance and high thermal conductivity, the internal resistance is far smaller than the resistance of the NTC chip 8, and the excellent weldability is represented by plating treatment on the surfaces.
Furthermore, one end of the lead wire of the temperature sensing device 4 away from the temperature sensing part is fixed in the casing 2, and the temperature sensing part of the temperature sensing device 4 is positioned outside the casing 2.
Further, the housing 2 is provided with a protective cover 26, the protective cover 26 covers the temperature sensing portion of the temperature sensing device 4, and the protective cover 26 is designed to be hollow, so that the temperature sensing portion of the temperature sensing device 4 is exposed to the air. The lower end of the shell 2 adopts a hollow design, so that the temperature sensing part is directly exposed in the air, and the temperature sensing is quicker and more accurate.
Furthermore, the shell 2 is an injection molding shell 2, and the outgoing line of the temperature sensing device 4 and the metal insert are partially encapsulated inside the injection molding shell 2 through an injection molding process; two outgoing lines of the temperature sensing device 4 are in one-to-one corresponding welding connection with the two metal inserting pieces.
The injection molding casing 2 is formed through an injection molding process, a part of the lead-out wire of the temperature sensing device 4, a part of the first metal insert 11 and a part of the second metal insert 12 are encapsulated inside the injection molding casing, and a part of the lead-out wire of the temperature sensing device 4 and the NTC chip encapsulated by the epoxy resin 43 are exposed outside the casing 2.
Furthermore, a butt joint is arranged at one end of the shell 2 far away from the temperature sensing part of the temperature sensing device 4. The interface is used for pegging graft with the bayonet joint, the utility model discloses a temperature signal that temperature sensor gathered is through the bayonet joint output of pegging graft with the interface. The butt joint part of the upper end of the shell 2 adopts an imitated standard butt joint port, and part of the first metal inserting piece 11 and the second metal inserting piece 12 are exposed to realize stable butt joint with a standard part and accurate air temperature measurement.
Further, one end of the metal insertion sheet is fixed in the shell 2, the other end of the metal insertion sheet extends out of the end face of the shell 2, and an interface side wall 21 arranged by surrounding the metal insertion sheet is arranged on the end face of the shell 2 to form an interface. The space enclosed by the interface side wall 21 is an accommodating space of the interface, and the plug connector is plugged into the accommodating space of the interface.
Further, the outer wall of the shell 2 is provided with a buckling structure. The middle part of the shell 2 of the embodiment is designed to be in a knob fixing mode, so that the disassembly and assembly are convenient.
Further, buckle structure sets up on the circumference outer wall of casing 2, buckle structure includes draw-in groove 22 that multistage ring shell circumference set up, the one end opening of draw-in groove, the other end of draw-in groove is sealed, and the open end of first draw-in groove corresponds the blind end of second draw-in groove in two adjacent draw-in grooves, is equipped with between the open end of first draw-in groove and the blind end of second draw-in groove along shell axial extension's slot 23 in two adjacent draw-in grooves, and the shell terminal surface is run through to the axial one end of slot, one side of slot and the opening intercommunication of first draw-in groove.
Furthermore, a limiting block 24 is arranged at the opening end of the clamping groove, and the limiting block 24 is positioned outside the clamping groove but close to the opening end of the clamping groove.
Further, referring to fig. 1, the housing 2 is provided with a first cylindrical section 27, a second cylindrical section 28 and a third cylindrical section 29 which are sequentially connected from top to bottom, the first cylindrical section 27 is close to the butt joint port, the third cylindrical section 29 is close to the temperature sensing portion of the temperature sensing device 4, the outer diameter of the first cylindrical section 27 is larger than that of the second cylindrical section 28, the outer diameter of the second cylindrical section 28 is larger than that of the third cylindrical section 29, the upper end surface of the first cylindrical section 27 of the housing 2 is provided with a joint side wall 21 which is provided with a ring metal insert, so as to form the butt joint port, and the fastening structure is arranged on the outer wall of the second cylindrical section 28 of the housing 2. The locking groove is located on the circumferential outer wall of the second cylindrical section 28 of the housing 2, and the stopper 24 is located on the lower end face of the first cylindrical section 27. The open end of the slot is provided with a guide bevel 25.
The air temperature sensor is fixed on the material in a mode of a knob buckle, the temperature sensing head is embedded into the object cavity, the temperature control system is connected into the tail part of the temperature sensing head through the simulation standard part interface, pulse signals are sent in real time, the real-time temperature monitoring is achieved, the feedback is carried out, and therefore the purpose that the temperature control system makes a quick response is achieved.
The utility model discloses can realize the function to object inner chamber temperature real time monitoring and ability fast feedback, its simple structure, low in manufacturing cost, small, easily insert and dismantle, interchangeability is good, and the installation space requires lowly, stable performance, environmental protection safety, and the application temperature interval is wide, and the temperature sensing head is in the most direct naked air, accurate feedback, intelligent control, and long service life.
When the temperature sensor of this embodiment is installed on the sensor mounting panel, set up the mounting hole on the sensor mounting panel, the pore wall of mounting hole is equipped with the joint arch, and after the temperature sensing portion of sensor passed the mounting hole of sensor mounting panel, the joint arch fell into buckle structure's slot, and rotation sensor makes the protruding card of joint go into the draw-in groove of casing 22 outer wall and slot intercommunication, makes the rotatory joint of buckle structure of sensor outer wall setting and the mounting hole of sensor mounting panel.
The stopper 24 is mainly used for limiting, so that the knob is limited to a certain position, and the excessive matching of the knob is avoided, and the knob is prevented from easily falling off from the mounting plate due to vibration or other reasons in the using process.
Example two
In the embodiment, the fastening structure arranged on the outer wall of the housing 2 in the first embodiment is replaced by the external thread structure, and other technical features are the same as those in the first embodiment. When the temperature sensor of this embodiment is installed at the sensor mounting panel, set up the screw thread mounting hole on the sensor mounting panel, the temperature sensing portion of sensor passes behind the screw thread mounting hole of sensor mounting panel, and the external screw thread that the outer wall at sensor middle part set up is connected with the screw thread mounting hole screw thread fit of sensor mounting panel, with temperature sensor and sensor mounting panel fixed connection.
EXAMPLE III
In this embodiment, the fastening structure disposed on the outer wall of the housing 2 in the first embodiment is replaced by a mounting support lug, and a fixing hole is disposed on the mounting support lug. When the temperature sensor of the present embodiment is mounted on the sensor mounting plate, the sensor mounting plate is provided with a through hole, and after the temperature sensing portion of the sensor passes through the through hole of the sensor mounting plate, the mounting lug on the outer wall of the housing 22 is fixedly connected to the sensor mounting plate through a screw.
The utility model discloses an operating principle is to pass through the interior first metal inserted sheet 11 of the imitative standard butt joint of casing 22 upper end of moulding plastics, second metal inserted sheet 12 exposure part and inserts control circuit through the standard butt joint, and casing 22 will be moulded plastics again and detect inner chamber air temperature through mid portion knob installation embedding object inner chamber. The air temperature in the cavity to be measured is directly transmitted to the NTC chip through the epoxy resin 43, and then the negative temperature coefficient characteristic of the NTC chip is utilized, so that the changed pulse signal is transmitted to the control circuit through the insulated metal wire, the first metal inserting sheet 11 and the second metal inserting sheet 12, and therefore real-time temperature monitoring and intelligent temperature control are carried out.
The utility model discloses simple structure realizes with low costs, and easy installation is dismantled, and interchangeability is high, and in the direct naked air of temperature sensing head, the temperature transmission decay of avoiding secondary encapsulation to cause to make reaction time descend. The installation design of 2 knob buckle formulas of casing is convenient to be fixed on by the object and be difficult for droing, and whole small, low to the installation space requirement, compatible all kinds of air circumstance and object inner chamber temperature test. The upper end of the shell 2 adopts an imitated standard interface, perfect butt joint with a standard part can be realized, the lower end adopts a hollow design, on one hand, the temperature sensing head is directly used for detecting the temperature, and on the other hand, certain protection is provided for the temperature sensing head. The temperature sensing head is packaged by epoxy resin 43 which has good sealing performance, excellent moisture resistance and high heat conduction, so that the temperature sensing head can stably work for a long time in more environments and has good sensitivity, and a pulse signal can be stably fed back quickly in real time, so that the temperature control system can be accurately and quickly adjusted.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An in-line air temperature sensor, characterized by: the temperature sensing device comprises a housing, the one end of casing is fixed with the metal inserted sheet, the one end of metal inserted sheet is fixed in the casing, and the other end exposes in the air, the other end of casing is fixed with the temperature sensing device, the temperature sensing portion of temperature sensing device exposes in the air, and the lead-out wire partly of temperature sensing device is fixed in the casing, and is connected with the metal inserted sheet of fixing in the casing.
2. An in-line air temperature sensor according to claim 1, wherein: the temperature sensing device comprises a thermistor, two pins of the thermistor are respectively connected with two outgoing lines in a one-to-one correspondence mode, a packaging part is wrapped outside the thermistor, one end, connected with the thermistor, of the outgoing lines is also wrapped in the packaging part to form a temperature sensing part, the two outgoing lines of the temperature sensing device are respectively connected with two metal insertion pieces in a one-to-one correspondence mode, a distance is arranged between the two outgoing lines, and a distance is arranged between the two metal insertion pieces.
3. An in-line air temperature sensor according to claim 1 or 2, wherein: the end of the outgoing line of the temperature sensing device far away from the temperature sensing part is fixed in the shell, and the temperature sensing part of the temperature sensing device is positioned outside the shell.
4. An in-line air temperature sensor according to claim 3, wherein: the shell is provided with a protective cover, the protective cover covers the temperature sensing part of the temperature sensing device, and the protective cover is designed in a hollow mode, so that the temperature sensing part of the temperature sensing device is exposed in the air.
5. An in-line air temperature sensor according to claim 1, wherein: the shell is an injection molding shell, and the outgoing line of the temperature sensing device and the metal insert are partially encapsulated inside the injection molding shell through an injection molding process; two lead-out wires of the temperature sensing device are in one-to-one corresponding welding connection with the two metal insertion pieces.
6. An in-line air temperature sensor according to claim 1, wherein: and one end of the shell, which is far away from the temperature sensing part of the temperature sensing device, is provided with a butt joint.
7. An in-line air temperature sensor according to claim 6, wherein: one end of the metal inserting sheet is fixed in the shell, the other end of the metal inserting sheet extends out of the end face of the shell, and an interface side wall arranged by the metal inserting sheet is arranged on the end face of the shell to form an interface.
8. An in-line air temperature sensor according to claim 1, wherein: the outer wall of the shell is provided with an external thread or a buckle structure.
9. An in-line air temperature sensor according to claim 8, wherein: when the casing outer wall sets up buckle structure, buckle structure sets up on the circumference outer wall of casing, buckle structure includes the draw-in groove that multistage ring shell circumference set up, the one end opening of draw-in groove, the other end of draw-in groove is sealed, and the open end of first draw-in groove corresponds the blind end of second draw-in groove in two adjacent draw-in grooves, is equipped with along shell axial extension's slot between the open end of first draw-in groove and the blind end of second draw-in groove in two adjacent draw-in grooves, and the shell terminal surface is run through to the axial one end of slot, one side of slot and the opening intercommunication of first draw-in groove.
10. An in-line air temperature sensor according to claim 9, wherein: the open end of draw-in groove is equipped with the stopper, and the stopper is located outside the draw-in groove, but is close to the open end of draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288744.0U CN218330293U (en) | 2022-08-30 | 2022-08-30 | Direct-insertion type air temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288744.0U CN218330293U (en) | 2022-08-30 | 2022-08-30 | Direct-insertion type air temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218330293U true CN218330293U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222288744.0U Active CN218330293U (en) | 2022-08-30 | 2022-08-30 | Direct-insertion type air temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218330293U (en) |
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2022
- 2022-08-30 CN CN202222288744.0U patent/CN218330293U/en active Active
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Effective date of registration: 20240110 Address after: 430000 Science and Technology Park of Huazhong University of Science and Technology, Donghu High tech Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Huagong Xingaoli Electron Co.,Ltd. Patentee after: XIAOGAN HUAGONG GAOLI ELECTRONIC Co.,Ltd. Address before: Xiaogan Industrial Park, Huagong science and technology, No.1, Xiaohan Avenue, Xiaogan City, Hubei Province, 432100 Patentee before: XIAOGAN HUAGONG GAOLI ELECTRONIC Co.,Ltd. |