CN213180402U - Thermal resistance temperature measurement module - Google Patents
Thermal resistance temperature measurement module Download PDFInfo
- Publication number
- CN213180402U CN213180402U CN202022283269.9U CN202022283269U CN213180402U CN 213180402 U CN213180402 U CN 213180402U CN 202022283269 U CN202022283269 U CN 202022283269U CN 213180402 U CN213180402 U CN 213180402U
- Authority
- CN
- China
- Prior art keywords
- temperature measurement
- wire
- thermal resistance
- lead
- sealing gasket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a thermal resistance temperature measurement module, wherein an opening is arranged on a temperature measurement protective shell; a lead connected to the thermal resistor; the filling particles are filled in the temperature measuring protective shell and tightly press and fix the conducting wires, and the filling particles are made of insulating and heat-conducting materials; the sealant is filled in the opening, and the end part of the lead wire, which is used for being connected with the wiring terminal, penetrates out of the sealant; and the sealing gasket is used for sealing a gap between the lead and the sealant, the sealing gasket is provided with a through hole matched with the lead, the lead penetrating out of the sealant penetrates through the through hole, and the sealing gasket is fixed with the temperature measurement protective shell. The utility model provides a thermal resistance temperature measurement module can improve the production efficiency of thermal resistance temperature measurement equipment, and it is sealed effectual to the wire end of wearing out to prevent that the packing granule in the temperature measurement protective housing from spilling, wire in the temperature measurement protective housing is fixed good, avoids appearing the condition that the tip of wire and thermal resistance junction fracture and temperature measurement protective housing in the wire peeled off the insulating skin and contacts each other.
Description
Technical Field
The utility model relates to a check out test set field especially relates to thermal resistance temperature measurement module.
Background
Thermal resistance is one of the most commonly used temperature detectors in the medium and low temperature regions. Thermal resistance temperature measurement is based on the property that the resistance value of a metal conductor increases with increasing temperature. Its main features are high measuring accuracy and stable performance.
The lead of the thermal resistor has three main ways at present:
a two-wire system: the two ends of the thermal resistor are connected with a lead respectively to lead out a resistance signal, which is called a two-wire system. The lead method is simple, but the lead resistance r of the connecting lead is necessarily related to the material and length of the lead, so the lead method is only suitable for occasions with low measurement precision
Three-wire system: the mode that one end at the root of thermal resistance is connected with a lead wire, and the other end is connected with two lead wires is called three-wire system, and this kind of mode is often used with the electric bridge supporting, can be better eliminate the influence of lead wire resistance, avoids the measuring error that connecting wire resistance arouses, is the most commonly used in industrial process control.
Four-wire system: the two ends of the root of the thermal resistor are respectively connected with two leads in a four-wire system, wherein two leads provide constant current I for the thermal resistor, R is converted into a voltage signal U, and the U is led to a secondary instrument through the other two leads. Therefore, the lead wire mode can completely eliminate the resistance influence of the lead wire and is mainly used for high-precision temperature detection.
The temperature measurement module of present thermal resistor is often including the built-in temperature measurement protective housing that has the thermal resistor, heat conduction such as magnesium oxide is filled in the temperature measurement protective housing, high temperature resistant and insulating packing granule, the wire of being connected with the thermal resistor is worn out and is compressed tightly fixedly by packing the granule from packing the granule, wire and thermal resistor junction need peel off its insulating skin, the conductive part that often adopts the welded mode to make the wire is connected with the thermal resistor, the wire in the temperature measurement protective housing is extremely thin, wire and thermal resistor junction fragile, fracture.
The other ends of the multiple wires connected with the thermal resistor need to penetrate out of the temperature measuring protective shell and are respectively connected with different terminals. In the prior art, the temperature measurement protective shell is often provided with an opening through which a common metal wire penetrates, all the metal wires penetrate out from the opening, and the opening is sealed by using a sealant so as to prevent filling particles in the temperature measurement protective shell from spilling out.
However, after the sealing, because different wires need to be connected with different terminals, and the wires penetrating out of the openings have different directions, when the wires are pulled in different directions to be connected with corresponding terminals, the passage of the wires passing through the sealing adhesive is easy to be enlarged, or all the wires pass through the sealing adhesive and then are connected with the terminals in different directions, gaps are generated in the middle of each wire, especially when the sealing adhesive is not completely dried, the sealing of the sealing adhesive is easy to be damaged, and long time is consumed for waiting for the sealing adhesive to be dried, so that the production efficiency of equipment is low.
After sealed quilt of gluing is destroyed, the packing granule in the temperature measurement protective housing can spill from the opening part, and the packing granule spills the back, and the wire is fixed insecure in temperature measurement protective housing part, can remove at will, and the wire easily breaks with the thermal resistance junction, influences the measurement of thermal resistance, and the cracked tip of having peeled off the wire of insulating skin has the possibility of mutual contact, easily takes place the accident that causes equipment damage such as short circuit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thermal resistance temperature measurement module can improve the production efficiency of thermal resistance temperature measurement equipment, and it is sealed effectual to wear out the end to the wire to prevent that the packing granule in the temperature measurement protective housing from spilling, wire in the temperature measurement protective housing is fixed good, avoids appearing the condition that the tip of wire and thermal resistance junction fracture and temperature measurement protective housing in peeled off the insulating skin contacts each other.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a thermal resistance temperature measurement module, which comprises,
the temperature measurement protective shell is internally provided with a thermal resistor and is made of a heat conduction material, and an opening is formed in the temperature measurement protective shell;
a lead connected to the thermal resistor;
filling particles which are filled in the temperature measuring protective shell and compress and fix the conducting wire, wherein the filling particles are made of insulating and heat conducting materials;
the sealant is filled in the opening, and the end part of the lead, which is used for being connected with the wiring terminal, penetrates out of the sealant;
and the sealing gasket is used for sealing the gap between the lead and the sealant, a penetrating hole matched with the lead is formed in the sealing gasket, the lead penetrating through the sealant penetrates through the penetrating hole, and the sealing gasket is fixed with the temperature measurement protective shell.
The utility model has the advantages that: the sealed gap between closing cap wire and the sealed glue of filling can be avoided, can avoid filling the granule and spill from the gap, need not wait for sealed glue to dry thoroughly, can carry out the wiring to the wire, can improve the production efficiency of thermal resistance temperature measurement equipment, it is sealed effectual to the wire end of wearing out, it is fixed to guarantee that the intussuseption of temperature measurement protective housing packs the clamp of packing to the wire, wire in the temperature measurement protective housing is fixed good, avoid appearing the condition that the wire has peeled off the tip of insulating skin with the wire in thermal resistance junction fracture and the temperature measurement protective housing.
Furthermore, the sealing gasket is made of elastic materials, and the penetrating hole of the sealing gasket clamps the lead in the penetrating hole so that the outer wall of the lead is sealed with the inner wall of the penetrating hole.
The beneficial effect of adopting the further scheme is that: the sealing of the joint of the sealing gasket and the lead can be ensured, and the phenomenon that filling particles are spilled out from the gap due to the gap generated between the lead and the sealing gasket is avoided.
Furthermore, the outer wall of the sealing gasket is elastically and tightly connected with the side wall of the opening.
The beneficial effect of adopting the further scheme is that: the installation and the disassembly are convenient, and the maintenance and the like of the thermal resistor are facilitated.
Further, the sealing gasket compresses the sealant and the filling particles, and the contact surface of the sealing gasket and the sealant is sealed.
The beneficial effect of adopting the further scheme is that: the sealed pad is sealed with the contact surface of sealed glue, can prevent to fill the granule and remove the edge of sealed pad through the clearance between sealed pad and the sealed contact surface of gluing, spill from the edge of sealed pad, and do benefit to and make sealed pad can the gap that produces between complete closing cap wire and the sealed glue, in addition, sealed pad compresses tightly sealed glue and packing, can make whole structure tight, avoids filling the granule and the wire in it removes to and the wire removes the gap increase between messenger wire and the sealed glue at will.
Furthermore, the wire has many, it is provided with a plurality of holes to penetrate to correspond on the sealing pad, all the wire all follow after sealed glue is worn out again respectively from corresponding the hole of penetrating pass the sealing pad.
The beneficial effect of adopting the further scheme is that: different wires are threaded out from corresponding different threaded holes, gaps between the sealing gasket and the wires are facilitated by the gaps between the different threaded holes, the wires are threaded out from the corresponding threaded holes, and gaps between the wires can be avoided when the wires are threaded out from the same threaded hole.
Furthermore, all the conducting wires are threaded out of the sealant in a strand shape, and the parts of the conducting wires in the middle of the sealant are coated with insulating skins.
The beneficial effect of adopting the further scheme is that: installation, threading convenience, but all wires one is worn out simultaneously, need not each wire and wear out one by one, can improve equipment production efficiency, and all wires have insulating skin in the equal cladding of sealed middle part of gluing, and each wire passes through insulating skin contact, can avoid the conducting part contact of each wire.
Furthermore, the temperature measuring protective shell comprises a temperature measuring protective shell,
the temperature measurement protection tube with one end open and the other end sealed, the thermal resistor is arranged in the temperature measurement protection tube, and the temperature measurement protection tube is made of heat conduction materials
And set up in the connector of the opening end of temperature measurement protection tube, the connector has both ends and runs through and be used for the intercommunication temperature measurement protection tube inner chamber and external passageway, the passageway conduct the opening, sealed glue the connector with the space intussuseption that the temperature measurement protection tube formed packs the granule is filled and makes it will to fill the granule in the space the wire compresses tightly fixedly.
The beneficial effect of adopting the further scheme is that: the connector is arranged, connection with parts such as a meter head is facilitated, the sealant and the sealing gasket are arranged in a channel of the connector, mounting is facilitated, and the sealant and the sealing gasket can be positioned by utilizing clamping edges and the like on the inner wall of the connector.
Furthermore, the filling particles are made of high-temperature resistant materials.
The beneficial effect of adopting the further scheme is that: the thermal resistor is often used under high temperature environment, and the packing granule is high temperature resistant material, and the packing granule melts when can avoiding high temperature, loses the effect of fixed wire.
Further, the filler particles are magnesium oxide particles.
The beneficial effect of adopting the further scheme is that: the price is cheap and more economical.
Furthermore, the temperature measurement protective shell is made of stainless steel.
The beneficial effect of adopting the further scheme is that: the corrosion resistance is good, and the method is suitable for environments with high corrosion.
Drawings
FIG. 1 is a schematic view of an embodiment of an end structure of a thermal resistance temperature measurement module with a plurality of wires in a strand passing through a sealant;
FIG. 2 is a schematic view of an embodiment of an end structure of a thermal resistance temperature measurement module with a plurality of wires respectively passing through a sealant;
FIG. 3 is a cross-sectional view of an embodiment of a gasket;
FIG. 4 is an end view of an embodiment of a gasket;
in the figure: 1. a temperature measuring protective shell; 11. a temperature measurement protection tube; 12. a connector; 2. filling particles; 3. a wire; 4. sealing glue; 5. a gasket; 51. an outlet hole is formed;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1-4, the embodiment of the thermal resistance temperature measurement module disclosed in the present invention includes a temperature measurement protective housing 1 with a thermal resistance and made of a heat conductive material, wherein the temperature measurement protective housing 1 has an opening;
a lead wire 3 connected to the thermal resistor;
the filling particles 2 are filled in the temperature measuring protective shell 1 and tightly press and fix the wires 3, and the filling particles 2 are made of insulating and heat-conducting materials;
the sealant 4 is filled in the opening, and the end part of the lead 3 for connecting with the connecting terminal penetrates out of the sealant 4;
and the sealing gasket 5 is used for sealing a gap between the lead 3 and the sealing adhesive 4, the sealing gasket 5 is provided with a through hole 51 matched with the lead 3, the lead 3 penetrating out of the sealing adhesive 4 penetrates through the through hole 51, and the sealing gasket 5 is fixed with the temperature measuring protective shell 1.
As a further solution of the above embodiment, the wire 3 is protected by the insulation cover except for the portions of the two ends for connecting the thermal resistor and the terminal, respectively, which are peeled off to expose the conductive portions.
As a further alternative of the above embodiment, the gasket 5 is made of an elastic material, and the through hole 51 of the gasket 5 clamps the lead 3 therein, so that the outer wall of the lead 3 is sealed with the inner wall of the through hole 51.
As a further aspect of the above embodiment, the outer wall of the gasket 5 is elastically press-connected to the side wall of the opening.
In another embodiment, the sealing pad 5 is also made of a hard material, the wire 3 is partially covered with an insulating skin at the penetrating hole 51, the insulating skin has elasticity, and the sealing connection between the wire 3 and the sealing pad 5 is realized by the close fit between the insulating skin and the inner wall of the penetrating hole 51. When the sealing gasket 5 is made of hard materials, the sealing gasket can be fixedly connected with the temperature measuring protective shell 1 at the opening through modes such as threaded connection and the like.
As a further scheme of the above embodiment, the sealing gasket 5 compresses the sealing adhesive 4 and the filling particles 2, the contact surface between the sealing gasket 5 and the sealing adhesive 4 is sealed, and both ends of the sealing adhesive 4 are respectively tightly attached to the filling particles 2 and the sealing gasket 5.
As a further alternative of the above embodiment, there are a plurality of the leads 3, a plurality of the through holes 51 are correspondingly formed in the gasket 5, the plurality of the through holes 51 may be distributed in a linear shape, a circular shape, a triangular shape, a diamond shape or a matrix shape, and all the leads 3 are passed through the sealant 4 and then passed through the gasket 5 through the corresponding through holes 51.
As a further scheme of the above embodiment, all the wires 3 are threaded out of the sealant 4 in a strand shape, and the portions of all the wires 3 in the middle of the sealant 4 are coated with the insulating skin.
Specifically, the temperature measuring protective shell 1 comprises,
a temperature measurement protection tube 11 with one open end and the other end sealed, a thermal resistor arranged in the temperature measurement protection tube 11, the thermal resistor fixed at the bottom of the temperature measurement protection tube 11, the temperature measurement protection tube 11 made of heat conductive material
And the connector 12 is arranged at the opening end of the temperature measurement protection tube 11, the connector 12 is provided with a channel, two ends of the channel penetrate through the channel and are used for communicating the inner cavity of the temperature measurement protection tube 11 with the outside, the channel is used as an opening, and the space formed by the sealant 4, the connector 12 and the temperature measurement protection tube 11 is filled with the filling particles 2 and leads 3 in the space to be compressed and fixed by the filling particles 2.
As a further scheme of the above embodiment, the filler particles 2 are made of a high temperature resistant material, and in actual temperature measurement, the temperature of more than 800 ℃ needs to be measured, and in order to ensure that the filler particles 2 do not melt in the temperature measurement environment, the filler particles 2 should be made of a material capable of keeping granular state when the temperature of the filler particles 2 exceeds the temperature to be measured, that is, the melting point of the filler particles 2 should be higher than the temperature to be measured.
As a further aspect of the above embodiment, the filler particles 2 are magnesium oxide particles.
As a further scheme of the above embodiment, the temperature measurement protective housing 1 is made of stainless steel, the temperature measurement protective tube 11 and the connector 12 are made of stainless steel, the temperature measurement protective tube 11 and the connector 12 can be fixedly connected in a non-detachable fixed connection manner such as welding, or can be fixedly connected in a detachable fixed connection manner such as threaded connection, and the connector 12 can be a threaded joint.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and encompass, for example, a fixed connection, a removable connection, or an integral connection, either directly or indirectly through intervening media. The specific meaning of the above terms in the utility model can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or unit referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A thermal resistance temperature measurement module is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the temperature measurement protective shell (1) is internally provided with a thermal resistor and is made of a heat conduction material, and an opening is formed in the temperature measurement protective shell (1);
a lead (3) connected to the thermal resistor;
the filling particles (2) are filled in the temperature measuring protective shell (1) and tightly press and fix the wires (3), and the filling particles (2) are made of insulating and heat-conducting materials;
the sealant (4) is filled in the opening, and the end part of the lead (3) used for being connected with the wiring terminal penetrates out of the sealant (4);
and be used for the closing cap wire (3) with sealed pad (5) in the gap between sealed glue (4), sealed pad (5) go up have with the hole (51) of wearing out of wire (3) adaptation, follow sealed glue (4) are worn out wire (3) are followed it passes to wear out hole (51), sealed pad (5) with temperature measurement protective housing (1) is fixed.
2. The thermal resistance thermometry module of claim 1, wherein: the sealing gasket (5) is made of elastic materials, and the penetrating hole (51) of the sealing gasket (5) clamps the lead (3) in the penetrating hole to seal the outer wall of the lead (3) and the inner wall of the penetrating hole (51).
3. The thermal resistance thermometry module of claim 2, wherein: the outer wall of the sealing gasket (5) is elastically and tightly connected with the side wall of the opening.
4. The thermal resistance thermometry module of claim 1, wherein: the sealing gasket (5) compresses the sealing gasket (4) and the filling particles (2), and the contact surface of the sealing gasket (5) and the sealing gasket (4) is sealed.
5. The thermal resistance thermometry module of claim 1, wherein: wire (3) have many, it is provided with a plurality of holes (51) to correspond on sealed pad (5), all wire (3) all follow sealed glue (4) are worn out the back and are followed respectively the correspondence the holes (51) are worn sealed pad (5).
6. The thermal resistance thermometry module of claim 5, wherein: all the wires (3) are threaded out of the sealant (4) in a strand shape, and all the portions, in the middle of the sealant (4), of the wires (3) are coated with insulating skins.
7. The thermal resistance thermometry module of claim 1, wherein: the temperature measuring protective shell (1) comprises a temperature measuring protective shell,
temperature measurement protection tube (11) with one end open and the other end sealed, the thermal resistor is arranged in the temperature measurement protection tube (11), the temperature measurement protection tube (11) is made of heat conduction material
And set up in connector (12) of the open end of temperature measurement protection tube (11), connector (12) have both ends and run through and be used for the intercommunication temperature measurement protection tube (11) inner chamber and external passageway, the passageway conduct the opening, sealed glue (4) connector (12) with pack in the space that temperature measurement protection tube (11) formed fill granule (2) and make fill granule (2) will in the space wire (3) compress tightly fixedly.
8. The thermal resistance thermometry module of claim 1, wherein: the filling particles (2) are made of high-temperature-resistant materials.
9. The thermal resistance thermometry module of claim 8, wherein: the filling particles (2) are magnesium oxide particles.
10. The thermal resistance thermometry module of claim 1, wherein: the temperature measuring protective shell (1) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283269.9U CN213180402U (en) | 2020-10-14 | 2020-10-14 | Thermal resistance temperature measurement module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283269.9U CN213180402U (en) | 2020-10-14 | 2020-10-14 | Thermal resistance temperature measurement module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213180402U true CN213180402U (en) | 2021-05-11 |
Family
ID=75778757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022283269.9U Active CN213180402U (en) | 2020-10-14 | 2020-10-14 | Thermal resistance temperature measurement module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213180402U (en) |
-
2020
- 2020-10-14 CN CN202022283269.9U patent/CN213180402U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105466483A (en) | High-precision temperature and pressure sensor | |
| CN111696303A (en) | Temperature sensing cable, temperature sensing fire detection system comprising same and temperature detection method | |
| CN110595681A (en) | Sensor | |
| CN112903131A (en) | High-protection multifunctional explosion-proof temperature measuring device and manufacturing method thereof | |
| CN213180402U (en) | Thermal resistance temperature measurement module | |
| CN210833910U (en) | Connection sealing structure of anti-leakage thermal resistor and thermocouple of wire core | |
| CN201772944U (en) | Fast connection thermal resistor | |
| CN211088792U (en) | Ring main unit | |
| CN210293534U (en) | Sensor | |
| CN210426818U (en) | Mining intrinsic safety type temperature sensor | |
| CN212844055U (en) | Temperature sensor for engine shell | |
| CN221149433U (en) | Quick heat conduction linear temperature-sensing fire detector | |
| CN201303152Y (en) | Temperature-control electric connector | |
| CN215573403U (en) | Corrosion-resistant platinum-rhodium thermocouple | |
| CN218885205U (en) | Temperature sensor and unmanned aerial vehicle | |
| CN209858134U (en) | Pressure transmitter based on data acquisition | |
| CN204881880U (en) | Formula temperature sensor assembly is inhaled to magnetism | |
| CN218628687U (en) | High-voltage cable temperature monitoring device | |
| CN211373850U (en) | Wireless temperature measurement terminal | |
| CN220871931U (en) | Temperature sensor | |
| CN213516066U (en) | Temperature sensor | |
| CN218567416U (en) | Battery connector test fixture | |
| CN216524431U (en) | High-temperature and high-pressure resistant thermometer | |
| CN217032796U (en) | Contact junction temperature measuring device | |
| CN213093407U (en) | Electrode assembly and lead joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |