CN203881461U - Wireless temperature sensor for inductance charging type high voltage vacuum switch joint - Google Patents
Wireless temperature sensor for inductance charging type high voltage vacuum switch joint Download PDFInfo
- Publication number
- CN203881461U CN203881461U CN201420122474.9U CN201420122474U CN203881461U CN 203881461 U CN203881461 U CN 203881461U CN 201420122474 U CN201420122474 U CN 201420122474U CN 203881461 U CN203881461 U CN 203881461U
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- iron core
- inductive coil
- connects
- temperature sensor
- cpu
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000523 sample Substances 0.000 claims abstract description 22
- 230000001939 inductive effect Effects 0.000 claims description 28
- 230000006698 induction Effects 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 11
- 238000004146 energy storage Methods 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009529 body temperature measurement Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000005059 dormancy Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a wireless temperature sensor for an inductance charging type high voltage vacuum switch joint. The wireless temperature sensor employs self-inductance to realize charging and power supply without replacing a cell, further has a wire holding clamp head and is convenient to mount. The wireless temperature sensor is characterized by comprising a plastic casing (1), a circuit board (2), an inductance current wiring terminal (3), a linking screw (4), a wire holding clamp head (5), a locking bolt (6), an iron core linking pin (7), a closed-loop bolt (8), an inductance coil (LH), a temperature probe (T1) and an over-temperature sensing switch (TK). The wireless temperature sensor for the inductance charging type high voltage vacuum switch joint realizes wireless temperature data transmission and over-temperature alarm, avoids electrical consumption because of heating of the joint and facilitates safe operation.
Description
Technical field
The utility model is power high voltage vacuum switch monitoring technical field, is a kind of induction charging type high-pressure vacuum switch contact radio temperature sensor.
Background technology
In power supply high voltage vacuum switch cabinet, conventionally there are multiple switch main electrical scheme points, these interface electric currents are larger, the surface of contact that copper coin end and switch block connect is limited, have contact resistance, small resistance can produce heating, blackening gradually when serious, generates heat, burns, and adds radiator fan cooling in having.Mostly reason be because contact deficiency, surface of contact infilter air oxidation corrosion, and mechanical aging causes loosened screw etc. and causes.As wiring point has small resistance heating, hot all the more more oxidizable, cause contact resistance and further increase, time length causes serious heating gradually.According to electricity rating formula: W=I*I*R is known, wiring point increases by 0.01 Ohmage, under 100 peace current conditions, there are 100 watts of power attenuations, increase by 0.10 Ohmage, under 100 peace electric currents, can produce 1000 watts of power attenuations, if contact point in service has small resistance, year in year out accumulative total is produced to many electrical losses, its performance is near heating contact point, the known electrical loss of monitor temperature and the degree of heat.If monitor in advance the heating problem that contact resistance value increase causes, get rid of in time (being that holding screw is just soluble in earlier stage), will be conducive to reduce electric energy loss and heating burnout accident.
Though have various temperature monitoring instrument, temperature sensor at present, also have infrared ray and laser temperature detector, though can survey contact temperature, cost price is high, uses trouble, laser temperature-measuring need be got spot alignment measured object; Infrared thermometer can be measured certain region high temperature, can not accurately inform it is which contact to have problem at, needs the artificial high temperature dot of further finding at which, dangerous thorough examination inconvenience between hi-line; Though wireless temperature measurement has multiple, be mostly the power supply of external power lead-in wire, at higher-pressure region multiple spot, lead-in wire trouble is installed, higher-pressure region danger is inapplicable greatly.
Current wireless temperature measurement probe, the passive thermometric of once title having, be that only in-line power switch connection spreads out of overtemperature signal in the time having overtemperature by baby battery power supply in fact, can not call together and survey real time temperature data, if environment temperature is low to moderate subzero 5 while spending, even if heat generating spot is spent higher than environment temperature 30, contact temperature is 25 degree, far less than alarm temperature, actual this contact power consumption thermal value is very considerable, and can not measure; Under hot environment, having contact slightly to generate heat can report to the police, and often has more than two temperature probe to signal simultaneously, and now producing co-channel interference cannot receive, and does not reach result of use, and battery electric quantity be finished need have a power failure change battery, high-tension line have a power failure cumbersome.So, there is no at present and be suitable for high-tension line contact thermometric surely by practical product.
Utility model content
For head it off, the present invention designs open a kind of induction charging type high-pressure vacuum switch contact radio temperature sensor, solves line of electric force contact temperature monitoring aspect surely by practical problems.The work of wireless temperature detector bidirectional transmit-receive, can call survey signal together by Receiving Host, transmits in order temperature data, does not produce the problem of co-channel interference that multiple hygrosensors signal simultaneously; Induction self-powered solves real time temperature measurement power consumption large problem, and wireless transmission temperature data, does not need manual intervention and maintenance for a long time, and the district's line contacts temperature that solves that Keep Clear-High Voltage is surely by the convenient and practical problem of sensing.
A kind of induction charging type high-pressure vacuum switch contact radio temperature sensor of the present invention, take closed loop iron core formula inductive coil to be placed on main current carrying conductor periphery, when dynamic electric current, main current carrying conductor produces magnetic field around, in closed loop iron core, produce magnetic flux, the outer coiling of closed loop iron core can produce induced current, choose reasonable closed loop iron core sectional area and coil turn, can ensure self-powered.Closed loop iron core has two kinds of patterns: 1, open type closed loop iron core, for convenience of installing, by the movable formation that is connected of two semi-ring iron cores, facilitates old equipment not tear main electrical scheme head open and install; 2, open type closed loop iron core not, with common circle ring iron core coiling, puts on fixed installation from main line head, and this mode need to be torn main line head open.
The following accompanying drawing 1 of theory structure of the present utility model, structural principle is: with the inductive coil generation induced current carrying, to wireless temperature-measuring sensor supplementary power, the utility model architectural feature is: by comprising plastic housing (1), circuit board (2), temp probe (T1), induction current connection terminal (3), link screw (4); Card wire clamp head (5); Clamping screw (6); Closed loop iron core attachment pegs (7); Closed loop bolt (8); Inductive coil and iron core (LH); Temp probe (T1), overtemperature sensitive switch (TK) form.Its connecting relation is: circuit board (2) is installed in plastic housing (1), induction current connecting terminal (3) connecting circuit board (2) power source input end connects the output line of inductive coil and iron core (LH) simultaneously; Link screw (4) is anchored on plastic housing lower wall, simultaneously Connection Card wire clamp head (5); Temp probe (T1) and overtemperature sensitive switch (TK) are anchored on the upper plane of link screw (4), temp probe (T1) and and overtemperature sensitive switch (TK) the output pin corresponding junction block of connecting circuit board (2) respectively; Inductive coil and iron core (LH) are annular or oval ring or Q-RING, are similar to current transformer, are placed on electric current line periphery, and induced current is by induction current connection terminal (3) place in circuit plate (2); Inductive coil and iron core (LH) are placed on line of electric force periphery and install near card wire clamp head (5), or fixedly mount near being placed in card wire clamp head (5).
Circuit board described in the utility model (2) is by comprising commutation diode (D1, D2, D3, D4); Stabilivolt (W1); Electrochemical capacitor (C1); Microprocessor (CPU); Temperature switch (TK) junction block; Temp probe (T1) junction block; Energy-storage battery (B); Wireless transmit plate (fB); Emitting antenna (AT) forms, its annexation is: commutation diode D1, D2 negative pole are connected and meet VCC, the positive level of commutation diode D3, D4 is connected and meets GND, commutation diode D1 positive pole connects D3 negative pole and is connected in inductive coil one end, and commutation diode D2 positive pole connects D4 negative pole and connects the inductive coil other end; Stabilivolt negative pole and electrochemical capacitor positive pole meet DC power anode VCC, and stabilivolt positive pole and electrochemical capacitor negative pole meet DC power cathode GND; Energy-storage battery (B) negative pole meets GND, and energy-storage battery (B) positive pole connects the interior positive source of microprocessor (CPU); One termination GND of temperature switch (TK) junction block, the overtemperature input endpoint of another termination microprocessor (CPU); Temp probe (T1) junction block connects respectively the temperature input signal point that CPU is corresponding; Microprocessor CPU external power positive pole meets VCC, microprocessor CPU external power negative pole meets GND, the digital signal of microprocessor (CPU) output connects wireless transmit plate (fB) input signal end, wireless transmit plate (fB) output high-frequency signal connects emitting antenna (AT), and the output signal after wireless transmit plate (fB) receipt decoding connects microprocessor (CPU) and receives signal input part.
Inductive coil and iron core (LH), its structure is by comprising that closed loop iron core, inductive coil, coil plastic casing, external lead wire are formed; Its closed loop iron core is to be connected through iron core attachment pegs (7) and closed loop bolt (8) by two semi-ring iron cores that form can opening closed loop iron core, shape is that annular is oval or square annular, mounting means is to be placed on current carrying conductor periphery to form closed magnetic circuit, inductive coil is around in annular core, and coil connects external lead wire;
Principle of work: when high-voltage switch gear contact contact resistance increases, near conductor temperature raises, card wire clamp head (5) is anchored on the nearest position of easy heating contact, if contact has temperature to raise or overtemperature, temp probe and the quick temperature-sensitive of overtemperature sensitive switch, the temperature data that temp probe sensing is continuous, while having overtemperature, the action of overtemperature sensitive switch is sent overtemperature alarm signal through circuit board (2); Temperature data signal connecting circuit board (2), send wireless transmit plate (fB) through microprocessor (CPU) OPADD coded signal, sends temperature data signal and overtemperature identification signal; On circuit board, there is chargeable energy-storage battery, to circuit stable power-supplying; While having induction current, to battery charging, an induction current hour battery-powered part, ensures normally to work, if when non-inductive electric current, CPU can enter dormancy electricity-saving state automatically, and in the time having overtemperature to make sensitive switch action, CPU wakes up automatically, sends out overtemperature signal, when dormancy economize on electricity, power consumption is little, for microampere order, energy-storage battery can keep dormancy work in continuous 2 years, when there is electric current in supply line, automatically wakes up; Under normal power supply applicable cases, self-induction charging, power supply, work all the year round and do not need to change battery and maintenance.
Each wireless temperature-measuring sensor of the present invention arranges a coded address, 65535 of 16 scale-of-two of address realm, if special circumstances need the address sizes that increase more, when each sensor thermometric or warning, send different address coding signals, wireless transmit plate (fB) bidirectional transmit-receive, can receive and can launch, transceiver in functions of wireless (also claiming main frame) can be called together and be surveyed each temperature probe temperature data, which contact point temperature data and alerting signal distinguishes with different coding is, pass to center or person liable's mobile phone (private radio concentrates receiver host separate case to declare) by optical fiber or GPRS network.The each contact of high-tension switch gear is installed this kind of temperature sensor, establishes different geocodings, tells fast at the scene problem contact position in all multiple-contacts.
The beneficial effects of the utility model and feature are:
1, be easily installed in copper coin or aluminium sheet current-carrying conductor with card wire clamp head, wireless transmit temperature measurement data and alerting signal, numerous and diverse inconvenience of exempting wiring and transmitting temperature, the use problem in the district that solves that Keep Clear-High Voltage.
2, use induction current self-supply power source, solve the trouble of higher-pressure region circumscripted power line and the trouble of replacing battery.
3, wireless transmit plate (fB) bidirectional transmit-receive, calls together in real time and surveys a some biography temperature data, can measure the loss heating under low temperature, is convenient to find in time problem process in time, reduces current supply loss, improves safe reliability.
Brief description of the drawings
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is the schematic block circuit diagram of circuit board (2) with peripheral interface unit;
In Fig. 1,1 is plastic housing; 2 is circuit board; 3 is induction current connection terminal; 4 is link screw; 5 is card wire clamp head; 6 is clamping screw; 7 is closed loop iron core attachment pegs; 8 is closed loop bolt; LH is inductive coil and iron core; T1 is temp probe; TK is overtemperature sensitive switch.
In Fig. 2, D1, D2, D3, D4 are commutation diode; W1 is stabilivolt; C1 is electrochemical capacitor; T1 is temp probe; CPU is microprocessor; TK is temperature switch; B is energy-storage battery; FB is wireless transmit plate; AT is emitting antenna; LH is inductive coil and iron core; T1 is temp probe; TK is overtemperature sensitive switch; VCC is positive source identifier; GND is the common ground identifier of power cathode.
Embodiment
The theory structure of embodiment is as Fig. 1, and primary structure of the present invention is: by comprising plastic housing (1), circuit board (2), induction current connection terminal (3), link screw (4); Card wire clamp head (5), clamping screw (6), closed loop iron core attachment pegs (7), closed loop bolt (8), inductive coil and iron core (LH), temp probe (T1), overtemperature sensitive switch (TK) form.
Inductive coil and iron core (LH) are available can not open type closed loop iron core, and as conventional circular ring type transformer iron core, old equipment installs the head of need taking out stitches additional and penetrates in ring, and convenience is not as open type, low cost of manufacture.
Example 1: as Fig. 1 structure principle chart, inductive coil and iron core LH two halves annular core, being connected into by closed loop iron core attachment pegs (7) can open type closed loop iron core, be placed on behind current-carrying conductor periphery, be closed into annular, circularize by closed loop bolt (8) secure closure, printed line is snapped in card wire clamp head (5) simultaneously, tighten clamping screw (6) this temperature sensor is anchored on to current-carrying printed line, card wire clamp head (5) shape also claims U-shaped card the end of a thread as U-shaped; 18B20 temperature piece reading temperature data for temp probe (T1); Microprocessor on circuit board (CPU) is used STC15F2K24S2 Single-chip Controlling, and its serial ports 1 is for outer setting, and serial ports 2 is for connecting wireless transmission signal; Wireless transmit plate (fB), with two-way 315M/433M wireless two-way rf board, launches different from receive frequency point, can launch also and can receive, match with receiver frequency, avoid co-channel interference, effective each contact temperature data of sensing within the scope of 100 meters or in rack.In application, U-shaped card wire clamp head blocks template copper bar or aluminium row current-carrying conductor, tightens clamping screw (6) and is anchored on current-carrying conductor.
Example 2: with reference to the structure principle chart of Fig. 1, not open type annular core of inductive coil and iron core LH, do not add iron core attachment pegs (7) and closed loop bolt (8), as conventional current transformer form, core section is long-pending needs induction current size selected according to circuit board (2), the outer coiling of iron core, when application, current carrying conductor penetrates in toroid ring fixing, printed line is stuck in U-shaped card wire clamp head (5) simultaneously, tightens clamping screw (6) this temperature sensor is anchored on to current-carrying printed line or wire; Two-way 2.0M high frequency radio band for wireless transmit plate (fB), transmitting is put slightly difference with receive frequency, match with concentrated receiver frequency, the each contact temperature data of wireless sensing and alerting signal within the scope of 50 meters or in rack, other are with example 1.
Claims (3)
1. an induction charging type high-pressure vacuum switch contact radio temperature sensor, is characterized in that thermal detector shell is fixed on card wire clamp head with inductive coil self-charging power supply, and clamping screw is anchored on current-carrying conductor; The utility model architectural feature is: by comprising plastic housing (1), circuit board (2), induction current connection terminal (3), link screw (4); Card wire clamp head (5); Clamping screw (6); Iron core attachment pegs (7); Closed loop bolt (8); Inductive coil and iron core (LH), temp probe (T1), overtemperature sensitive switch (TK) form; Connecting relation is: circuit board (2) is installed in plastic housing (1), induction current connecting terminal (3) connecting circuit board (2) power source input end connects the output line of inductive coil and iron core (LH) simultaneously; Link screw (4) is anchored on plastic housing lower wall, simultaneously Connection Card wire clamp head (5); Temp probe (T1) and overtemperature sensitive switch (TK) are anchored on the upper plane of link screw (4), and temp probe (T1) and overtemperature sensitive switch (TK) output pin be the corresponding junction block of connecting circuit board (2) respectively; Inductive coil and iron core (LH) are annular or oval ring or Q-RING, be similar to current transformer, be placed on electric current line periphery, induced current is by induction current connection terminal (3) place in circuit plate (2), inductive coil and iron core (LH) are placed on line of electric force periphery and install near card wire clamp head (5), or fixedly mount near being placed in card wire clamp head (5).
2. a kind of induction charging type high-pressure vacuum switch contact radio temperature sensor according to claim 1, is characterized in that: described circuit board (2) is by comprising commutation diode (D1, D2, D3, D4); Stabilivolt (W1); Electrochemical capacitor (C1); Microprocessor (CPU); Temperature switch (TK) junction block; Temp probe (T1) junction block; Energy-storage battery (B); Wireless transmit plate (fB); Emitting antenna (AT) forms, its annexation is: commutation diode D1, D2 negative pole are connected and meet VCC, the positive level of commutation diode D3, D4 is connected and meets GND, commutation diode D1 positive pole connects D3 negative pole and is connected in inductive coil one end, and commutation diode D2 positive pole connects D4 negative pole and connects the inductive coil other end; Stabilivolt negative pole and electrochemical capacitor positive pole meet DC power anode VCC, and stabilivolt positive pole and electrochemical capacitor negative pole meet DC power cathode GND; Energy-storage battery (B) negative pole meets GND, and energy-storage battery (B) positive pole connects the interior positive source of microprocessor (CPU); One termination GND of temperature switch (TK) junction block, the overtemperature input endpoint of another termination microprocessor (CPU); Temp probe (T1) junction block connects respectively the temperature input signal point that CPU is corresponding; Microprocessor CPU external power positive pole meets VCC, microprocessor CPU external power negative pole meets GND, the digital signal of microprocessor (CPU) output connects wireless transmit plate (fB) input signal end, wireless transmit plate (fB) output high-frequency signal connects emitting antenna (AT), and the output signal after wireless transmit plate (fB) receipt decoding connects microprocessor (CPU) and receives signal input part.
3. a kind of induction charging type high-pressure vacuum switch contact radio temperature sensor according to claim 1, it is characterized in that described inductive coil and iron core (LH), its structure is by comprising that closed loop iron core, inductive coil, coil plastic casing, external lead wire are formed; The opening mode of its closed loop iron core is to be connected formation closed loop by two semi-ring iron cores through iron core attachment pegs (7) and closed loop bolt (8), shape is that annular is oval or square annular, mounting means is to be placed on current carrying conductor periphery to form closed magnetic circuit, inductive coil is around in annular core, and coil connects external lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122474.9U CN203881461U (en) | 2014-03-13 | 2014-03-13 | Wireless temperature sensor for inductance charging type high voltage vacuum switch joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122474.9U CN203881461U (en) | 2014-03-13 | 2014-03-13 | Wireless temperature sensor for inductance charging type high voltage vacuum switch joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203881461U true CN203881461U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420122474.9U Expired - Lifetime CN203881461U (en) | 2014-03-13 | 2014-03-13 | Wireless temperature sensor for inductance charging type high voltage vacuum switch joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203881461U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392590A (en) * | 2014-11-07 | 2015-03-04 | 国网上海市电力公司 | Wireless power internet-of-things sensor without need of connecting with power supply |
| CN105115618A (en) * | 2015-09-18 | 2015-12-02 | 西交利物浦大学 | Wireless temperature sensor apparatus for vacuum temperature measurement |
| CN112533279A (en) * | 2020-11-13 | 2021-03-19 | 珠海格力电器股份有限公司 | Wireless data conversion module and energy Internet system |
| CN113067416A (en) * | 2021-03-29 | 2021-07-02 | 贵州电网有限责任公司 | Electromagnetic induction wireless automatic charging device |
-
2014
- 2014-03-13 CN CN201420122474.9U patent/CN203881461U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392590A (en) * | 2014-11-07 | 2015-03-04 | 国网上海市电力公司 | Wireless power internet-of-things sensor without need of connecting with power supply |
| CN105115618A (en) * | 2015-09-18 | 2015-12-02 | 西交利物浦大学 | Wireless temperature sensor apparatus for vacuum temperature measurement |
| CN112533279A (en) * | 2020-11-13 | 2021-03-19 | 珠海格力电器股份有限公司 | Wireless data conversion module and energy Internet system |
| CN113067416A (en) * | 2021-03-29 | 2021-07-02 | 贵州电网有限责任公司 | Electromagnetic induction wireless automatic charging device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |