CN205175575U - Digital display electron temperature relay - Google Patents
Digital display electron temperature relay Download PDFInfo
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- CN205175575U CN205175575U CN201520160368.4U CN201520160368U CN205175575U CN 205175575 U CN205175575 U CN 205175575U CN 201520160368 U CN201520160368 U CN 201520160368U CN 205175575 U CN205175575 U CN 205175575U
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- housing
- digital display
- circuit board
- front panel
- temperature relay
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Abstract
The utility model provides a digital display electron temperature relay is mainly divided by temperature sensitive element, the installation body, casing, front panel, rear panel and little electronic circuit subassembly six boards to constitute. Do the obs core control procedure by writing in the inside high level language procedure of singlechip into, realize detection, demonstration and other multiple functions to the temperature. The rotatable characteristic of casing and front panel can satisfy the requirement of multiple mounted position and environment. The circuit part simultaneous design polarity protection, overvoltage protection, circuit such as short -circuit protection for its job stabilization, the fault rate reduces, incident emergences such as component damage can not appear. Adopted the multi -functional demonstration charactron of integrated form, two kinds of temperature units of, DEG C except that digital display current temperature he fahrenheit and two way switch quantity output's pilot lamp also all shows on the charactron. The circuit board adopts the multiply wood, and the casing passes through special process to be handled, has the ferromagnetism, has increased the interference killing feature of instrument more, even disturbing stronger environment also can normally work. Installation space is saved to small and exquisite volume, is favorable to the installation more and maintains.
Description
Technical field
The utility model relates to a kind of digital display electronic relay, is specially a kind of internal or external temperature-sensing element (device), all rotatable electronic temperature relay of band numerical monitor, form and housing.Be applicable to the instrument of the temperature detection of the transmission fluid such as hydraulic pressure, lubrication, display, output control signal.
Background technology
The digital display electronic temperature relay of prior art, function is relatively simple, only has on-the-spot display and output switch parameter function.Behind in-site installation location, the position of the display window of instrument and towards being fixing, can not adjust, cannot meet the installation requirement of multiple position and state, usable range is restricted, and gives to observe and use is made troubles.If there is short circuit in circuit, or electric power polarity is connect instead due to maloperation, the damage of instrument is caused in capital, when the type instrument is under the stronger environment of interference simultaneously, instrument display is inaccurate, shows and outputs signal saltus step seriously, even cisco unity malfunction, especially small size electronic pressure relay in the market, above-mentioned defect is more obvious.
Summary of the invention
The utility model, for the deficiency in above-mentioned prior art, devises a kind of form and the rotatable digital display electronic temperature relay of housing.
A kind of digital display electronic temperature relay, the housing comprising fixing body and be connected with fixing body, fixing body end is provided with temperature-sensing element (device), be respectively arranged with front panel and rear panel housing is forward and backward, microelectronic circuit assembly is provided with in housing, the skirt body that it is characterized in that ring front panel circumference is evenly distributed with four to ten two tapered protrusion, and described inner walls is provided with the groove mated with described tapered protrusion.
Described digital display electronic temperature relay, described tapered protrusion is provided with eight altogether, and the described groove mated with tapered protrusion is eight.
Described digital display electronic temperature relay, it is characterized in that described tapered protrusion is arranged on different circumferences, the position of described groove and described tapered protrusion matches.
Described a kind of digital display electronic temperature relay, is characterized in that being connected and fixed by housing can be made to carry out 340 ° of rectangle snap rings rotated along the central axis of fixing body between fixing body and housing.
Described a kind of digital display electronic temperature relay, it is characterized in that described microelectronic circuit assembly comprises single chip microcomputer circuit board and power supply circuit board, described single chip microcomputer circuit board and transparent window are fixed on front panel by gib screw, and described power supply circuit board is fixed as entirety by contact pin and single chip microcomputer circuit board.
Described a kind of digital display electronic temperature relay; it is characterized in that described power supply circuit board is added with polarity protection, overvoltage protection and short-circuit protection circuit; the power supply unit of relay is made up of three-terminal voltage-stabilizing pipe 78M15 and voltage regulator LP2951, is provided with the TM7715 processor be connected with single-chip microcomputer.
The beneficial effects of the utility model are: temperature-sensing element (device) (monolithic devices) and highly integrated single chip circuit, power circuit are all arranged in housing.Can rotate between housing and fixing body; can rotate between front panel and housing; meet the requirement of multiple installation site and environment; and be provided with the circuit such as polarity protection, overvoltage protection and short-circuit protection in circuit; make its working stability, failure rate reduces, and there will not be the events such as component wear to occur; due to the maloperation of user, instrument can not be damaged, even if also can normally work at the stronger environment of interference.Small and exquisite volume is advantageously in I&M.
Accompanying drawing explanation
Fig. 1 is digital display electronic temperature relay theory diagram;
Fig. 2 is monolithic devices digital display electronic temperature relay outward appearance front view;
Fig. 3 is monolithic devices digital display electronic temperature relay inner structure schematic diagram;
Fig. 4 is separation type digital display electronic temperature relay structural representation;
Fig. 5 is thermometric bar partition schematic diagram in Fig. 4;
Fig. 6 is panel side view;
Fig. 7 is housing interior structure schematic diagram.
In figure: 1-fixing body; 2-rectangle snap ring; 3-O type circle; 4-temperature-sensing element; 5-locating sleeve; 6-housing; 7-operating key; 8-shows charactron; 9-single chip microcomputer circuit board; 10-power supply circuit board; 11-arranges pin; 12-socket; 13-front panel; 14-rear panel; 15-transparent window; 16-gib screw; 17-tapered protrusion; 18-groove; 19-male connector; 20-thermometric bar.
Embodiment
Below in conjunction with accompanying drawing, digital display electronic temperature relay of the present utility model is described in detail.
With reference to accompanying drawing, the main body of electronic temperature relay of the present utility model is highstrenghtpiston's housing 6, and a fixing body 1 is arranged at the bottom of this housing, and power circuit part is added with polarity protection, overvoltage protection and short-circuit protection circuit.Different according to the position that temperature-sensing element (device) is installed, be divided into monolithic devices and separation type two kinds, it is inner that the temperature-sensing element (device) 4 of monolithic devices is directly installed on monolithic devices fixing body 1, and relay can directly be fixed on the position needing thermometric, withstand voltagely reaches 600bar.The temperature-sensing element (device) 4 of separation type is arranged on thermometric bar 20 inside by stube cable, and thermometric bar 20 is fixed on the position needing thermometric again.Two kinds of versions only need to change the different fixing body in two kinds, bottom, two kinds of fixing bodies and housing 6 be connected and fixed mode and internal electronics is completely the same.
The upper end of fixing body 1 is processed with two road grooves, lower recess is for installing rectangle snap ring, upper grooves is used for mounting O-shaped rings, the inside of housing 6 bottom is also processed with one groove, during installation, fixing body 1 can be connected with housing 6 by groove centre rectangle snap ring being embedded in two parts, both can realize spinfunction, and ensure barrier propterty again by O type circle.
The left and right sides on housing 6 top is separately installed with rear panel 14 and front panel 13, the groove of rear panel built with O type circle, by the hangnail on rear panel and the male cooperation in housing, realize the fixing of rear panel, after rear panel buckles into housing, O type circle is compressed, and realizes sealing protection function.
Front panel 13 is inner, and be fixed on front panel by gib screw 16 by single chip microcomputer circuit board 9 and transparent window 15, power supply circuit board 10 is connected with single chip microcomputer circuit board 9 by contact pin 11.At the endoporus of housing upper, male connector 19 is installed, carries out the connection of electric signal with outside.
Arrange a tapered protrusion 17 in the peripheral skirt outside of front panel 13 every 30-90 degree angle of circumference, total 4-12, optimal number is 8, and namely every 45 degree of angles of circumference arrange one.Housing 6 inwall is provided with above-mentioned shirt rim correspondence position the groove 18 mated with described tapered protrusion, is fixed on housing by panel by above-mentioned tapered protrusion and groove.Above-mentioned tapered protrusion also can be located on different circumference, and corresponding groove also needs coupling to arrange.
During instrumentation, the temperature signal collected by point for measuring temperature is by after TM7715 process, and the digital signal being converted to serial sends into single-chip microcomputer.Single-chip microcomputer, to after signal transacting, is sent into display charactron 8 and is shown.
Instrument has two-way switch amount and exports, and has been come, has controlled by MCU Instruction, realize the conversion of relay output state by integrated circuit VND5050.Instrument can provide the optional analog output of a road 4-20mA or 0 ~ 10V simultaneously, and the temperature value detected in real time is converted to analog signal output, and for other Instrument uses, as PLC, secondary instrument etc., this part function is completed by analog output unit.
The power supply unit of whole instrument is made up of three-terminal voltage-stabilizing pipe 78M15 and voltage regulator LP2951, provides 15V and 5V voltage respectively, powers to whole circuit.
Digital display electronic temperature relay of the present utility model is integrated with single chip circuit, power circuit and display charactron at very little volume inner height, and the revolving property of housing and front panel can meet the requirement of multiple installation site and environment.Circuit part devises polarity protection simultaneously, overvoltage protection, the circuit such as short-circuit protection; in circuit, many places are provided with filtering circuit, and by the undesired signal filtering of different frequency, circuit board adopts multilayer board; housing, by special process process, has ferromagnetism, more adds the antijamming capability of instrument.When there is short circuit in output loop, instrument can cut off output signal in time, and shows short circuit information, and after short-circuit bar removes, instrument can normally work.
Described a kind of digital display electronic temperature relay, have employed integrated multifunction display charactron, except numerical monitor current pressure, DEG C and the pilot lamp that exports of ℉ two kinds of temperature units and double switch amount also all show on charactron.Do core control program by the high-level language programs of write single-chip microcomputer inside, realize the detection to temperature, display and other several functions.(also the comprising temperature-sensing element (device) of monolithic devices); Can adjust arbitrarily housing towards position (adjust display window towards) simultaneously.The connection front panel 13 realizing electric signal and mechanical part can carry out 270 ° with the axle center of front panel and rotate because display window is embedded in front panel inside, also just can adjust arbitrarily the angle state of display window.
Be connected and fixed by rectangle snap ring 2 between fixing body 1 and housing 6, after having assembled, housing 6 can carry out 340 ° of rotations along the central axis of fixing body 1, can adjust arbitrarily housing towards position.Front panel 13 is connected and fixed with coordinating of housing inner groovy by the tapered protrusion on front panel with housing 6, and after having assembled, 270 ° of rotations are carried out in the axle center that front panel 13 can prolong front panel, can adjust arbitrarily the angle position of form.Inside is provided with power supply circuit board 10 and single chip microcomputer circuit board 9, described single chip microcomputer circuit board 9 is connected and fixed by transparent window 15 screw 16 and front panel 13, single chip microcomputer circuit board 9 is provided with socket 12, the row's of being provided with pin 11 on power supply circuit board 10, row's pin 11 is inserted in socket 12, then power supply circuit board 10 and single chip microcomputer circuit board 9 are connected into entirety, realize the connection of electric signal and mechanical part.
Described digital display electronic temperature relay, is fixed with locating sleeve 5 on fixing body top by welding manner, has place's rectangular preiection outside locating sleeve, is used for limiting the anglec of rotation of fixing body 1 and housing 6.In the groove of front panel, be provided with O type circle, after panel and housing fastening, described O type circle is compressed, and plays sealing function.Below plate groove in O type circle 18 is installed, after rear panel and housing fastening, described O type circle is compressed, and plays sealing function.
The housing of digital display electronic pressure switch is made up of high strength plastic materials, in injection moulding process and electroplating surface process, all adds the metal powder that part is special, makes housing have certain ferromagnetism, has shielding action, improves the antijamming capability of instrument.
Claims (5)
1. a digital display electronic temperature relay, the housing (6) comprising fixing body and be connected with fixing body (1), temperature-sensing element (device) (4) is provided with in fixing body end, at forward and backward front panel (13) and the rear panel (14) of being respectively arranged with of housing, microelectronic circuit assembly is provided with in housing, the skirt body that it is characterized in that ring front panel (13) circumference is evenly distributed with four to ten two tapered protrusion (17), and described housing (6) inwall is provided with the groove (18) mated with described tapered protrusion.
2. digital display electronic temperature relay according to claim 1, described tapered protrusion (17) is provided with eight altogether, and the described groove (18) mated with tapered protrusion is eight.
3. digital display electronic temperature relay according to claim 1, is characterized in that described tapered protrusion (17) is arranged on different circumferences, and described groove (18) matches with the position of described tapered protrusion.
4. the digital display electronic temperature relay according to claim 1,2 or 3, is characterized in that being connected and fixed by housing (6) can be made to carry out 340 ° of rectangle snap rings (2) rotated along the central axis of fixing body (1) between fixing body (1) and housing (6).
5. digital display electronic temperature relay according to claim 4, it is characterized in that described microelectronic circuit assembly comprises single chip microcomputer circuit board (9) and power supply circuit board (10), described single chip microcomputer circuit board (9) and transparent window (15) are fixed on front panel (13) by gib screw (16), and described power supply circuit board (10) is fixed as entirety by contact pin (11) and single chip microcomputer circuit board (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160368.4U CN205175575U (en) | 2015-03-22 | 2015-03-22 | Digital display electron temperature relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160368.4U CN205175575U (en) | 2015-03-22 | 2015-03-22 | Digital display electron temperature relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175575U true CN205175575U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520160368.4U Active CN205175575U (en) | 2015-03-22 | 2015-03-22 | Digital display electron temperature relay |
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| CN (1) | CN205175575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116324342A (en) * | 2020-10-09 | 2023-06-23 | 胡斯华纳有限公司 | Metering instrument |
-
2015
- 2015-03-22 CN CN201520160368.4U patent/CN205175575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116324342A (en) * | 2020-10-09 | 2023-06-23 | 胡斯华纳有限公司 | Metering instrument |
| US11913815B2 (en) | 2020-10-09 | 2024-02-27 | Husqvarna Ab | Metering console |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |