CN209342257U - A kind of New-type thermocouple freezing point instrument - Google Patents
A kind of New-type thermocouple freezing point instrument Download PDFInfo
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- CN209342257U CN209342257U CN201920234708.1U CN201920234708U CN209342257U CN 209342257 U CN209342257 U CN 209342257U CN 201920234708 U CN201920234708 U CN 201920234708U CN 209342257 U CN209342257 U CN 209342257U
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Abstract
The middle part of a kind of New-type thermocouple freezing point instrument, including cabinet, the lateral surface of the cabinet is equipped with temperature control device；The side of temperature control device is equipped with No.1 thermocouple terminal and No. two thermocouple terminal；The other side of temperature control device is equipped with No.1 aviation plug and No. two aviation plugs, and the No.1 aviation plug and No. two aviation plugs are pin receptacles；Inner end of No.1 thermocouple terminal per horizontally-arranged each binding post passes through two sections of compensating wires and is connected with two stitch of every row of No.1 aviation plug, the solder joint formed between two sections of compensating wires is compensating end, and compensating end is placed in semiconductor refrigerating cavity；Two stitch of every row of No.1 aviation plug are respectively connected to external temperature display instrument by aviation socket female lead-out wire；The connection type of No. two thermocouple terminal and No. two aviation plugs is similar to No.1 aviation plug and No. two aviation plugs；It is small in size, it is light-weight, it is easy to operate, it is easy to carry；It is suitble to production line scene large-scale application.
Description
Technical field
The utility model relates to technical field of temperature measurement more particularly to New-type thermocouple freezing point instrument.
Background technique
With the rapid development of society, scientific and technological progress, in industry, agricultural the temperature instrumentation that uses also to it is small in size,
The direction that function is complete, intelligence degree is high is developed, and electric thermo-couple temperature control instrument is since thermometric is accurate, and temperature-measuring range is wide, price
It is cheap, it is used widely in field of temperature measurement.Its temperature-measurement principle is the conductor (referred to as thermocouple probes) two of two kinds of heterogeneities
When end is closed into circuit, when binding site temperature difference, closed circuit generates electromotive force, i.e. pyroelectric effect, and thermocouple is exactly benefit
Temperature is measured with the principle.Wherein one end of measuring medium temperature is known as active section (also referred to as measurement end), the other end be cold end (
Claim compensating end), cold end connects temperature control instrument directly or by conducting wire, can measuring medium temperature.It can from thermocouple temperature measurement principle
Know that cold junction temperature stabilization is the key that accurate thermometric.Thermocouple is produced with 0 DEG C for reference temperature, and cold end, which is placed in 0 DEG C, can make to measure
System is simplified and precision is high.However traditional temperature controller cold junction compensation uses compensation circuit or ice cylinder.Compensation circuit higher cost
And be affected by factors such as environment temperature, electromagnetic interferences, calibration difficulties when actual measurement are complicated for operation；It is compensated using ice cylinder
When need ice making, trash ice, it is ensured that cold end electrical isolation, and production scene for a long time use when ice can melt, freezing point drift, thus mend
It repays ineffective.Gradually increasing with wisdom factory, production line measurement and control of temperature point sharply increase simultaneously, at present similar product
Energy single channel compensation, extensive measurement and control of temperature application cost are high.
Utility model content
To solve the above-mentioned problems, the purpose of the utility model is to provide a kind of small in size, light-weight, carrying transporters
Just, it can be achieved that multi-channel compensating system, is suitble to the New-type thermocouple freezing point instrument of production line scene large-scale application.
The technical solution adopted in the utility model is: a kind of New-type thermocouple freezing point instrument, including internal equipped with semiconductor system
The middle part of the cold heating cabinet of cold cavity, the lateral surface of the cabinet is equipped with temperature control device；The side of temperature control device is equipped with No.1
Thermocouple terminal and No. two thermocouple terminal, No.1 thermocouple terminal and No. two thermocouple terminal are
16 rows, 2 terminals of every row；The other side of temperature control device is equipped with No.1 aviation plug and No. two aviation plugs, the No.1 aviation
Plug and No. two aviation plugs are pin receptacles；Inner end of No.1 thermocouple terminal per horizontally-arranged each binding post
It is connected by two sections of compensating wires with two stitch of every row of No.1 aviation plug, the weldering formed between two sections of compensating wires
Point is compensating end, and compensating end is placed in semiconductor refrigerating cavity；Two stitch of every row of No.1 aviation plug pass through aviation
Socket female lead-out wire is respectively connected to external temperature display instrument；No. two thermocouple terminal connect per each of horizontally-arranged
The inner end of terminal passes through two sections of compensating wires and is connected with two stitch of every row of No. two aviation plugs, two sections of compensating wires it
Between the solder joint that is formed be compensating end, compensating end is placed in semiconductor refrigerating cavity；Two needles of every row of No. two aviation plugs
Foot is respectively connected to external temperature display instrument by aviation socket female lead-out wire.
Further, heating and cooling semiconductor chip is used in the semiconductor refrigerating cavity, radiating mode uses cooling fin
Heat dissipation, realizes fan-free heat dissipation.
Further, the heating and cooling semiconductor chip uses the semiconductor chilling plate of TEC- model.
Further, mounting hole is additionally provided on the lateral surface edge.
The beneficial effects of the utility model and feature are: 1, using semiconductor refrigerating, passive fan-free heat dissipation is small in size,
It is light-weight, it is easy to operate, convenient transportation is carried, can be used in laboratory, live use can also be carried to；2, using refrigeration
Cavity and high density connecting terminal and aviation plug are very suitable to production line scene and answer on a large scale, it can be achieved that 32 road cold junction compensations
With.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the preferred embodiment of the utility model；
The single channel compensation principle figure of the preferred embodiment of Fig. 2 the utility model；
Fig. 3 is the electrical component attachment structure schematic diagram of the utility model preferred embodiment；
Figure label point indicates 1- cabinet, 2- temperature control device, No. bis- 3- No.1 thermocouple terminal, 4- thermocouple wiring
Terminal, 5- No.1 aviation plug, No. bis- aviation plugs of 6-, 7- external temperature display instrument, 8- mounting hole, 9- solder joint, 10- electrode
A, 11- electrode B, 12- semiconductor refrigerating chamber, 13- measurement end.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing,
Embodiment 1:
Please refer to Fig. 1, Fig. 2, a kind of New-type thermocouple freezing point instrument, including the internal case for being equipped with semiconductor refrigerating cavity 12 of system
The middle part of body 1, the lateral surface of the cabinet 1 is equipped with temperature control device 2；The side of temperature control device 2 is equipped with No.1 thermocouple terminal
Son 3 and No. two thermocouple terminal 4, No.1 thermocouple terminal 3 and No. two thermocouple terminal 4 are 16 rows, often
Arrange 2 terminals；The other side of temperature control device 2 is equipped with No.1 aviation plug 5 and No. two aviation plugs 6, the No.1 aviation plug 5
It is 32 pin receptacles with No. two aviation plugs 6；The inner end of the every horizontally-arranged each binding post of No.1 thermocouple terminal 3
It is connected by two sections of compensating wires with two stitch of every row of No.1 aviation plug 5, is formed between two sections of compensating wires
Solder joint 9 is compensating end, and compensating end is placed in semiconductor refrigerating cavity；Two stitch of every row of No.1 aviation plug 5 pass through
Aviation socket female lead-out wire is respectively connected to external temperature display instrument；No. two thermocouple terminals 4 is every horizontally-arranged
The inner end of each binding post passes through two sections of compensating wires and is connected with two stitch of every row of No. two aviation plugs 6, two sections of benefits
Repaying the solder joint formed between conducting wire is compensating end, and compensating end is placed in semiconductor refrigerating cavity；Every row of No. two aviation plugs 6
Two stitch external temperature display instrument 7 is respectively connected to by aviation socket female lead-out wire.
Using heating and cooling semiconductor chip (using the semiconductor system of TEC1-4906 model in the semiconductor refrigerating cavity
Cold), radiating mode is radiated using cooling fin, realizes fan-free heat dissipation.
Embodiment 2:
As a preferred option, for the ease of installing, it is additionally provided with mounting hole 8 on the lateral surface edge, convenient for will originally set
It is standby to be fixed on the rack.
Concrete operating principle are as follows: single channel cold junction compensation measuring principle is as follows: first two electrodes of thermocouple are passed through
Compensating wire is connected to two binding posts topmost of thermocouple terminal 3, and each binding post inner end connects two compensating wires,
Solder joint is compensating end, and compensating end is led in semiconductor refrigerating cavity, and two compensating lines are connected to the two of aviation socket
A stitch, the two stitch draw two conducting wires to temperature display meter by aviation socket female, and so far single channel measures circuit
Connection is completed.Remaining No. 31 thermocouple is respectively connected to thermocouple terminal 3,4 according to above-mentioned principle, and aviation socket 5,6 is
32pin socket respectively corresponds 16 road binding posts of thermocouple terminal 3,4.When measurement, by the outer of galvanic couple connecting terminal 3 or 4
End is connected by electrode A, electrode B with measurement end, and aviation socket female lead-out wire is respectively connected to temperature display meter, and ensures
Display instrument is powered.Power supply is opened, sets 0.0 DEG C for temperature controller 2, it, can be right after actual temperature after 0 DEG C is stablized 15 minutes
Measured medium carries out temperature measurement.
Inside the New-type thermocouple freezing point instrument, 0.0 DEG C required for being set in instrument, when test set temperature is high
When, cooling system starting, when test set temperature is low, system heating starting.It is adjusted by system PID, reaches stable 0.0
DEG C temperature.Stable, uniform 0.0 DEG C of temperature is provided for temperature controller.
In practice, reserved 16 road interfaces can also be liked, according to customer demand, by increasing front panel connecting terminal and aviation
The mode of plug extends to 48 tunnels.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the structural relation and principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, this
Utility model will also have various changes and improvements, and these various changes and improvements fall within the scope of the claimed invention.
The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (4)
1. a kind of New-type thermocouple freezing point instrument, it is characterised in that: including the internal cabinet for being equipped with semiconductor refrigerating cavity (12)
(1), the middle part of the lateral surface of the cabinet (1) is equipped with temperature control device (2)；The side of temperature control device (2) is equipped with No.1 thermocouple
Connecting terminal (3) and No. two thermocouple terminal (4), No.1 thermocouple terminal sub (3) and No. two thermocouple terminal
It (4) is 16 rows, 2 terminals of every row；The other side of temperature control device (2) is equipped with No.1 aviation plug (5) and No. two aviation plugs
(6), the No.1 aviation plug (5) and No. two aviation plugs (6) are 32 pin receptacles；No.1 thermocouple terminal
(3) inner end per horizontally-arranged each binding post passes through two needles of every row of two sections of compensating wires and No.1 aviation plug (5)
Foot is connected, and the solder joint (9) formed between two sections of compensating wires is compensating end, and compensating end is placed in semiconductor refrigerating cavity；One
Two stitch of every row of number aviation plug (5) are respectively connected to external temperature display instrument by aviation socket female lead-out wire
Table；Inner end of No. two thermocouple terminal (4) per horizontally-arranged each binding post passes through two sections of compensating wires and No. two
Two stitch of every row of aviation plug (6) are connected, and the solder joint formed between two sections of compensating wires is compensating end, and compensating end is placed
In in semiconductor refrigerating cavity；Two stitch of every row of No. two aviation plugs (6) are distinguished by aviation socket female lead-out wire
It is connected to external temperature display instrument (7).
2. New-type thermocouple freezing point instrument according to claim 1, it is characterised in that: use in semiconductor refrigerating cavity and partly lead
Body heating and cooling chip, radiating mode are radiated using cooling fin, realize fan-free heat dissipation.
3. New-type thermocouple freezing point instrument according to claim 2, it is characterised in that: the heating and cooling semiconductor chip uses
The semiconductor chilling plate of TEC1-4906 model.
4. New-type thermocouple freezing point instrument described in any claim according to claim 1~3, it is characterised in that: the outside
Mounting hole (8) are additionally provided on the edge of face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234708.1U CN209342257U (en) | 2019-02-25 | 2019-02-25 | A kind of New-type thermocouple freezing point instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234708.1U CN209342257U (en) | 2019-02-25 | 2019-02-25 | A kind of New-type thermocouple freezing point instrument |
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| Publication Number | Publication Date |
|---|---|
| CN209342257U true CN209342257U (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920234708.1U Active CN209342257U (en) | 2019-02-25 | 2019-02-25 | A kind of New-type thermocouple freezing point instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461383A (en) * | 2020-12-22 | 2021-03-09 | 中国航天空气动力技术研究院 | Thermocouple measuring quick connecting device |
-
2019
- 2019-02-25 CN CN201920234708.1U patent/CN209342257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461383A (en) * | 2020-12-22 | 2021-03-09 | 中国航天空气动力技术研究院 | Thermocouple measuring quick connecting device |
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