CA1202401A - Temperature controller - Google Patents
Temperature controllerInfo
- Publication number
- CA1202401A CA1202401A CA000444315A CA444315A CA1202401A CA 1202401 A CA1202401 A CA 1202401A CA 000444315 A CA000444315 A CA 000444315A CA 444315 A CA444315 A CA 444315A CA 1202401 A CA1202401 A CA 1202401A
- Authority
- CA
- Canada
- Prior art keywords
- temperature controller
- temperature
- socket
- recessed portion
- raised portion
- 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.)
- Expired
Links
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A temperature controller comprises a temperature controller body having a positioning hollow raised portion and a plurality of pins, and a socket having a positioning recessed portion corresponding to the raised portion, a plurality of connection terminals for exterminal wiring and pin holes responding to the plurality of pins.
The socket is formed with a communication hole to face only receptacle members connected to thermocouple connect-ing external terminal, among receptacle members embedded in the pin holes, to the recessed portion. The raised portion of the temperature controller body houses therein a temerature sensitive element for compensating the tempe-rature of the thermocouple and is formed with a communicat-ing hole in comunication with the recessed portion.
A temperature controller comprises a temperature controller body having a positioning hollow raised portion and a plurality of pins, and a socket having a positioning recessed portion corresponding to the raised portion, a plurality of connection terminals for exterminal wiring and pin holes responding to the plurality of pins.
The socket is formed with a communication hole to face only receptacle members connected to thermocouple connect-ing external terminal, among receptacle members embedded in the pin holes, to the recessed portion. The raised portion of the temperature controller body houses therein a temerature sensitive element for compensating the tempe-rature of the thermocouple and is formed with a communicat-ing hole in comunication with the recessed portion.
Description
TEMPERATURE CONTROLLER
BACX~ROUND OF THE INVENTION
Thi~ inven~on ~elate~ to ~ temperature c~ntroll~r which can comp~nsate f~r c~ld junction temperature o a thermocoupl~ with accura~y.
In a temper~ture controll~r body connected, by way of plugin~-in~ to a plurali~y of connection terminals for external wirin~, thexe is provid~d a hollow raised porti~n f~ positioning a pin pattern cQnsti~utlng th~
plugs to ~he so~ke~ The raised por~ion houses ther~in a resiStor for compensating for the co~d junction of the thermoc~uple. The socket and recessed portipn are ~brmed wi~h holes for maintalnlng ~he re~istor at a tempe-ra~u~e equal to that of op~n ~ir. In the internal circui~, t~ cold junction te~p~ratur~ of the ~h~m~couple connec*~d to th~ connection t~rmin~ls i5 compens~t~d ~or in accordance with the detected value o~ the resiStorr ~nd the thus compensa~ed temperatu~ is represen~ed by the true tempera-ture Qf an article to be measu~ed.
Howa~erO ir~ practice, the am~ient ~emper~ture o~
th~ resistor is sometime ~iffe~ent from telnperatures of the thermoc:ouple c:onnecting external terminalæ or the 23 ambient temperature thereof.
~ or exanlple, where th lenslth of the therm5~0upie or compensa~ion conductor is short, a great dif~erence ~tween the ~emperature of the ~old junction conneetin~
~, ~ 2 -terminal an~ t~e a~mi~nt temperatur~ of the resistor some-times O~UIS due to the ter~inal trans~is~ion from ~he temperature me~suring porti~n or the li~e~ Therefore, a great di~eFence between the true temperature and det~e~
temperatut~e c~f an art~t:le to b~ m~asured Dcc!ur~ advan-tageously failing to achieve the a~&urate temperature display or the proper tempe~ature contr~l o~ the basis thereof.
It is an object of the pr~sent inv~ntion to provide temperature cont~ller whi~h, de~plte a dif~erence ~n temperature between open air and ~old junction ~onne~ting 1~ tPrminals, ~etect a ~emperatur2 ~f an article to ~ mea-sured rapidly and ~ith accuracy ~o obtain a hig~ly a~curate display and a proper temperature control accordingly.
Aeoordln~ ~o a ~il'S~ featur~ of the pre~ent invention~
an ambient t~mperature o~ a temperature co~pensating tempe-rature-sensitive element and a t~mperature of a re~ep~cl~
m~ hich varie~ with a t~mperat~r~ ~h~n~xoup~e connecting ex~ernal terminal may assume one and the same level ~1 a ~hort period ~f t ~ ~
As a oonsequen~e, the ~ime r~guired till a temperature oont~oller hcdy i~ stabilized is shortened. ~nus, the ambient t~ ~ atur~ of the temper~ture sensitive element becomes equal to the am~ient temperature of the thermDcouple conn~ting external terminal~ and therefore, the value of compensation by ,~.",~
the ~emperature sensiti~e elcment i~ accura~e. ~hus, the ~empe~ture detecti~n wi~h high ~ccura~y is possible ~o be a~hieved.
Ac~roding to a second feature of the pr~ent inventi~n, n m~kinq tbe am~ient t~mperatur~ of the th~rmocouple conne~ting t~rminal equal to the atmospheric temperature in the periphery of ~he temperature sens~tive element, no additional part is required, ThuS, the ~onstruction i5 extremely simple.
BRIEF ~SCRIPTION OF THE DRAWINGS
Fig, 1 is a side view partly in section ~owing in an ex~loded form a temperature controller in accordance lS with th~ present i~vention.
Pig. ~ is a plan vie~ showin~ a socket of the cont-roller partly in section.
Fig~ a slde ~iew part~y in section showing the state where th~ bQdy o~ the tampera~ure controller is ~onne~ted to the socket.
~= ~
Fig, 1 shows a temperature controller i~ accordanc~
2S with ~he present in~en~ion, Th ~ temperature csntroll~
compri~es socket 1 and a bcdy 2 of the temperatuxe cont-roller ~onnected ~o ~he socket 1 by way of a pluqing-in~
The socket 1 GOmprises a base 3 formed f~om a plastic . ~
in~c~io~ molded article, and a cov~r 4 integrally mounted on the bas~ ~.
A~ shown in Fig. 2, screwed-in type ~erminal members 5, S ... ~or ex~ernal wiring havi~ s~r~ws B a~ provided 5 in the peri phery of the ~ase ~, The aover 4 i~ annular}y formed with a plurality of pin holes ~, ~ ... vertic~lly extending therethough and ~orre~pondiny to a pin patt~rn o~ the pl~r E~bedded ~n the pin holes 6 are cylind~ical recep~acle m~mbers 7, 7 ~,. in~e~ral wi~h ~he foremost tO ends ~f the termin~l members 5, S ..~ The c~ver 4 and base 3 are form~d, in the center o~ each of recept~cle member~ 7, with a hole 8 havin~ a keyway 8a ~or positioni~g the ter~in~l of the controller bo~y 2.
The temperature ~ontroller ~ody 2 comprises an angled t5 cylindric~l` case g, a base 1~ arran~ed on the bottom ~f the ~ase 9, and di~play panel 11 arranged on th~ top of the c~e 9 and having a display posti~n tla and an operat-in~ p~rtion 11 b provided ~n the ~ur~aae th~reof. The ~ody 2 hou~es therein print ~oard~ 12, 13 on which elect-ronio pa~s ar~ mounted.
Pro~ct~ngly pro~ided on ~he lowe~ por~ion of ~he~se 10 are plugs ~omprising a number of pins 74, 14 n ~ ~
~ in a prede~ermined pin pattern correspond~ng to the shape of the pins ~. In ~he ~enter o~ these plug~ there i5
BACX~ROUND OF THE INVENTION
Thi~ inven~on ~elate~ to ~ temperature c~ntroll~r which can comp~nsate f~r c~ld junction temperature o a thermocoupl~ with accura~y.
In a temper~ture controll~r body connected, by way of plugin~-in~ to a plurali~y of connection terminals for external wirin~, thexe is provid~d a hollow raised porti~n f~ positioning a pin pattern cQnsti~utlng th~
plugs to ~he so~ke~ The raised por~ion houses ther~in a resiStor for compensating for the co~d junction of the thermoc~uple. The socket and recessed portipn are ~brmed wi~h holes for maintalnlng ~he re~istor at a tempe-ra~u~e equal to that of op~n ~ir. In the internal circui~, t~ cold junction te~p~ratur~ of the ~h~m~couple connec*~d to th~ connection t~rmin~ls i5 compens~t~d ~or in accordance with the detected value o~ the resiStorr ~nd the thus compensa~ed temperatu~ is represen~ed by the true tempera-ture Qf an article to be measu~ed.
Howa~erO ir~ practice, the am~ient ~emper~ture o~
th~ resistor is sometime ~iffe~ent from telnperatures of the thermoc:ouple c:onnecting external terminalæ or the 23 ambient temperature thereof.
~ or exanlple, where th lenslth of the therm5~0upie or compensa~ion conductor is short, a great dif~erence ~tween the ~emperature of the ~old junction conneetin~
~, ~ 2 -terminal an~ t~e a~mi~nt temperatur~ of the resistor some-times O~UIS due to the ter~inal trans~is~ion from ~he temperature me~suring porti~n or the li~e~ Therefore, a great di~eFence between the true temperature and det~e~
temperatut~e c~f an art~t:le to b~ m~asured Dcc!ur~ advan-tageously failing to achieve the a~&urate temperature display or the proper tempe~ature contr~l o~ the basis thereof.
It is an object of the pr~sent inv~ntion to provide temperature cont~ller whi~h, de~plte a dif~erence ~n temperature between open air and ~old junction ~onne~ting 1~ tPrminals, ~etect a ~emperatur2 ~f an article to ~ mea-sured rapidly and ~ith accuracy ~o obtain a hig~ly a~curate display and a proper temperature control accordingly.
Aeoordln~ ~o a ~il'S~ featur~ of the pre~ent invention~
an ambient t~mperature o~ a temperature co~pensating tempe-rature-sensitive element and a t~mperature of a re~ep~cl~
m~ hich varie~ with a t~mperat~r~ ~h~n~xoup~e connecting ex~ernal terminal may assume one and the same level ~1 a ~hort period ~f t ~ ~
As a oonsequen~e, the ~ime r~guired till a temperature oont~oller hcdy i~ stabilized is shortened. ~nus, the ambient t~ ~ atur~ of the temper~ture sensitive element becomes equal to the am~ient temperature of the thermDcouple conn~ting external terminal~ and therefore, the value of compensation by ,~.",~
the ~emperature sensiti~e elcment i~ accura~e. ~hus, the ~empe~ture detecti~n wi~h high ~ccura~y is possible ~o be a~hieved.
Ac~roding to a second feature of the pr~ent inventi~n, n m~kinq tbe am~ient t~mperatur~ of the th~rmocouple conne~ting t~rminal equal to the atmospheric temperature in the periphery of ~he temperature sens~tive element, no additional part is required, ThuS, the ~onstruction i5 extremely simple.
BRIEF ~SCRIPTION OF THE DRAWINGS
Fig, 1 is a side view partly in section ~owing in an ex~loded form a temperature controller in accordance lS with th~ present i~vention.
Pig. ~ is a plan vie~ showin~ a socket of the cont-roller partly in section.
Fig~ a slde ~iew part~y in section showing the state where th~ bQdy o~ the tampera~ure controller is ~onne~ted to the socket.
~= ~
Fig, 1 shows a temperature controller i~ accordanc~
2S with ~he present in~en~ion, Th ~ temperature csntroll~
compri~es socket 1 and a bcdy 2 of the temperatuxe cont-roller ~onnected ~o ~he socket 1 by way of a pluqing-in~
The socket 1 GOmprises a base 3 formed f~om a plastic . ~
in~c~io~ molded article, and a cov~r 4 integrally mounted on the bas~ ~.
A~ shown in Fig. 2, screwed-in type ~erminal members 5, S ... ~or ex~ernal wiring havi~ s~r~ws B a~ provided 5 in the peri phery of the ~ase ~, The aover 4 i~ annular}y formed with a plurality of pin holes ~, ~ ... vertic~lly extending therethough and ~orre~pondiny to a pin patt~rn o~ the pl~r E~bedded ~n the pin holes 6 are cylind~ical recep~acle m~mbers 7, 7 ~,. in~e~ral wi~h ~he foremost tO ends ~f the termin~l members 5, S ..~ The c~ver 4 and base 3 are form~d, in the center o~ each of recept~cle member~ 7, with a hole 8 havin~ a keyway 8a ~or positioni~g the ter~in~l of the controller bo~y 2.
The temperature ~ontroller ~ody 2 comprises an angled t5 cylindric~l` case g, a base 1~ arran~ed on the bottom ~f the ~ase 9, and di~play panel 11 arranged on th~ top of the c~e 9 and having a display posti~n tla and an operat-in~ p~rtion 11 b provided ~n the ~ur~aae th~reof. The ~ody 2 hou~es therein print ~oard~ 12, 13 on which elect-ronio pa~s ar~ mounted.
Pro~ct~ngly pro~ided on ~he lowe~ por~ion of ~he~se 10 are plugs ~omprising a number of pins 74, 14 n ~ ~
~ in a prede~ermined pin pattern correspond~ng to the shape of the pins ~. In ~he ~enter o~ these plug~ there i5
2~ provided projectingly a ~aised portiun 15 formed with a key (not shown~ corresponding to th~ posi~ionin~ hole 8, A temperature comp~nsating resistor 1~ is housed ln a hollow portion of the raised portion ~5. Measured values ar~ compe~sated for in the internal circuit ~n response t~ varia~lon in resistance value re~ulting from the temperature of the resis~or 1~. The raised pQrtion 15 is bored and fprme~, at th~ l~w~r por~ion, with a oo~m~i-~ation h~
At a posi~ion where a pair o~ receptacl~ me~bers 7a, 7a, amon~ the r~eptacle members ~, inte~ral with thermocouple conn~cting terminal mem~ers Sa~ 5a are mount~d, a aommuni~ation hole 18 is ~ut and formed b~twe~n the pOsitioning hole P ~nd the pin hole 6~ The pair of recept-acle mem~ers 7a are f~c~d to the p~sitionin~ hole 8 through the communication hole 16.
Fi~. 3 shows ~he ~t~te where the temperature cont-roller body ~ is mounted on the socket 1. ~n Fig, 3 the~e is shown that cold jun~tions ~9, 1~ (o~ ~ompensation ~on-du~tor~) of the thermocouple are connected to the thermn-couple ~onnecting t~rminal mem~ers Sa, S~.
With this connection, he~t o~ th~ ~old iunctions of the thermoeouple 19 is ~xansmitt~d r~pidly to th~ r~p-tacle members 7a throu~h the teminal members Sa.
~ he communication hole 17 of the positiPning raisedportion 15 is communicated wi~h a gap formed in the low~
portion of the positioning hole 8 and thence communicat~d with only the receptacle members 7a through the communioa-tion hole 180 ~h~s, by release or absorp~ion o~ heat by the r~cep~acle member 7a, heat thereof is diEectly transmitted ~o the resistor 16.
The ca~e will be oonsidered in which the ~old j~ncti4n -- 6 ~
temperature o~ tl~e the~rno~ouple 1 g is di~ferent ~rom the am~ient tempe~ature where the ~empera~ure cc~ntr~ller is positic)ne~ In the s~ate where t~e controll~r body ~
is fitted in the E;ocket 1, the ci~u~ference of the ~esisl;or 5 1~ i~ heat-insulated ~y the adiaba~ eff~ of ~ ase 3 and ~over 4 0 and therefore, only the heat oa' the ~ecept~
rnember 7a is ~ransmi~ed to the in~eri~ of tl~e raised portion 15 t~rou~h l:he cPmnlunica~ion hPles 1 B~ 1 7.
At a posi~ion where a pair o~ receptacl~ me~bers 7a, 7a, amon~ the r~eptacle members ~, inte~ral with thermocouple conn~cting terminal mem~ers Sa~ 5a are mount~d, a aommuni~ation hole 18 is ~ut and formed b~twe~n the pOsitioning hole P ~nd the pin hole 6~ The pair of recept-acle mem~ers 7a are f~c~d to the p~sitionin~ hole 8 through the communication hole 16.
Fi~. 3 shows ~he ~t~te where the temperature cont-roller body ~ is mounted on the socket 1. ~n Fig, 3 the~e is shown that cold jun~tions ~9, 1~ (o~ ~ompensation ~on-du~tor~) of the thermocouple are connected to the thermn-couple ~onnecting t~rminal mem~ers Sa, S~.
With this connection, he~t o~ th~ ~old iunctions of the thermoeouple 19 is ~xansmitt~d r~pidly to th~ r~p-tacle members 7a throu~h the teminal members Sa.
~ he communication hole 17 of the positiPning raisedportion 15 is communicated wi~h a gap formed in the low~
portion of the positioning hole 8 and thence communicat~d with only the receptacle members 7a through the communioa-tion hole 180 ~h~s, by release or absorp~ion o~ heat by the r~cep~acle member 7a, heat thereof is diEectly transmitted ~o the resistor 16.
The ca~e will be oonsidered in which the ~old j~ncti4n -- 6 ~
temperature o~ tl~e the~rno~ouple 1 g is di~ferent ~rom the am~ient tempe~ature where the ~empera~ure cc~ntr~ller is positic)ne~ In the s~ate where t~e controll~r body ~
is fitted in the E;ocket 1, the ci~u~ference of the ~esisl;or 5 1~ i~ heat-insulated ~y the adiaba~ eff~ of ~ ase 3 and ~over 4 0 and therefore, only the heat oa' the ~ecept~
rnember 7a is ~ransmi~ed to the in~eri~ of tl~e raised portion 15 t~rou~h l:he cPmnlunica~ion hPles 1 B~ 1 7.
Claims
1. A temperature controller comprising a temperature controller body having a positioning hollow raised portion and a plurality of pins, and a socket having a positioning recessed portion corresponding to said raised portion, a plurality of connection terminals for external wiring and pin holes corresponding to said plurality of pins;
said socket being formed with a communication hole to face only receptacle members connected to thermocouple connecting external terminal, among receptacle members embedded in said pin holes, to said recessed portion; and said raised portion of said temperature controller body housing therein a temperature sensitive element for compensating the temperature of the thermocouple and being formed with a communicating hole in communication with said recessed portion.
said socket being formed with a communication hole to face only receptacle members connected to thermocouple connecting external terminal, among receptacle members embedded in said pin holes, to said recessed portion; and said raised portion of said temperature controller body housing therein a temperature sensitive element for compensating the temperature of the thermocouple and being formed with a communicating hole in communication with said recessed portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57192019A JPS5885818A (en) | 1981-11-04 | 1982-11-02 | Novel imidazole carboxylic acid derivatives |
| JP201920/1982 | 1982-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1202401A true CA1202401A (en) | 1986-03-25 |
Family
ID=16284239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000444315A Expired CA1202401A (en) | 1982-11-02 | 1983-12-28 | Temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1202401A (en) |
-
1983
- 1983-12-28 CA CA000444315A patent/CA1202401A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |