CN109596244A - Power cable and device junction wireless temperature measuring device - Google Patents
Power cable and device junction wireless temperature measuring device Download PDFInfo
- Publication number
- CN109596244A CN109596244A CN201710919328.7A CN201710919328A CN109596244A CN 109596244 A CN109596244 A CN 109596244A CN 201710919328 A CN201710919328 A CN 201710919328A CN 109596244 A CN109596244 A CN 109596244A
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- CN
- China
- Prior art keywords
- coil
- lower cover
- control panel
- temperature measuring
- power cable
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2215/00—Details concerning sensor power supply
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of power cable and device junction wireless temperature measuring devices, including upper cover, lower cover, coil, magnetic conduction fastener, coil rack, the upper cover is matched with lower cover to be connected together, control panel is placed in lower cover, the side of control panel connects live wire, electric wire is pierced by lower cover, and the end of electric wire is connected with temp probe, and control panel is equipped with super capacitor, low-power scm, wireless transmitter module；Coil rack is equipped with coil, the opening of coil is equipped with magnetic conduction fastener, coil and magnetic conduction fastener are fixed by screw together, and groove compatible with the shape of coil, width is provided in upper cover and lower cover, is placed between the groove of upper cover and the groove of lower cover so as to coil.Control panel of the invention takes electricity plus super capacitor using CT, and guarantee supplies electricity to low-power scm and wireless transmitter module, and special soft magnetic stripe keeps its induction field ability stronger, and temp probe uses epoxy-plastic packaging, ensure that the service life of probe.
Description
Technical field
The present invention relates to a kind of power cable and device junction wireless temperature measuring devices.
Background technique
When power equipment works, each component, which normally generates heat, is not to be exceeded its maximum permissible temperature, just can guarantee safe operation.
Carrying out on-line temperature monitoring energy to power equipment operating status, discovering device is abnormal in time, and takes measures to avoid the hair of accident
It is raw.At power equipment conductive connection, the bad electrical contact situation of splicing position be to cause the major reason that temperature is excessively high at this.Therefore
Junction and splicing position are the main portions of on-line monitoring.
There are mainly three types of existing temperature monitoring modes: optical fiber grating temperature-measuring method, IR thermometry and battery wireless temperature measurement method.
In terms of power supply and transmission mode, optical fiber grating temperature-measuring method is without power supply, optical fiber transmission, and IR thermometry is not necessarily to power supply, nothing
Line transmission, battery wireless temperature measurement method need battery power supply/wireless transmission；In terms of temperature measurement accuracy, the essence of optical fiber grating temperature-measuring method
Degree is high, and the precision of IR thermometry is poor, and battery wireless temperature measurement method falls between；In terms of stability, fiber grating is surveyed
The stability that warm therapy is used for a long time is lower, and IR thermometry is easily illuminated by the light, air-flow, dust etc. influence, battery wireless temperature measurement method
Stability it is good；In terms of safety, the safety of optical fiber grating temperature-measuring method is general, is easily affected with dust, IR thermometry
Highly-safe, battery wireless temperature measurement method has security risk.
Therefore, a kind of good combination property is needed currently exist for, it securely and reliably, being capable of accurate, real-time power cable and equipment
Connector temperature detection device.
Summary of the invention
Goal of the invention of the invention is: in view of the above problems, provide a kind of power cable and device junction without
Line temperature measuring equipment.
The technical solution adopted by the present invention is that such:
A kind of power cable and device junction wireless temperature measuring device, including upper cover, lower cover, coil, magnetic conduction fastener, coil bone
Frame, the upper cover is matched with lower cover to be connected together, and control panel is placed in lower cover, and the side of control panel connects live wire,
Electric wire is pierced by lower cover, and the end of electric wire is connected with temp probe, and the control panel is equipped with super capacitor, low-power consumption monolithic
Machine, wireless transmitter module；The coil rack is equipped with coil, and the opening of coil is equipped with magnetic conduction fastener, coil and magnetic conduction
Fastener is fixed by screw together, and groove compatible with the shape of coil, width is provided in the upper cover and lower cover,
It is placed on so as to coil between the groove of upper cover and the groove of lower cover.
Preferably, the coil is soft magnetic stripe, the current range for the induction primary side that the soft magnetic stripe adapts to is 7A-
4500A。
Preferably, the upper cover and lower cover are flame retardant cover.
Preferably, the control panel is equipped with shielding case and protection circuit, the protection circuit is by TVS pipe, pressure-sensitive electricity
Resistance, fuse composition.
Preferably, the temp probe is epoxy temp probe.
Preferably, the two sides of the lower cover further respectively have 2 ring parts.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, the configuration of the present invention is simple, rationally, the fixed form of soft magnetic stripe can allow the efficiency of construction personnel to greatly improve, together for design
When it is simple to operation；Temp probe uses epoxy-plastic packaging, ensure that the service life of probe, and it is severe to allow it can adapt to
Environment (such as acid or alkali environment, dust atmosphere, wet environment etc.), and compact facilitate some gaps of installation small or temperature-sensitive point
Small place；Control panel takes electricity plus super capacitor scheme using CT, preferably guarantees to supply electricity to low-power scm and nothing in this way
Line transmitting module.
2, the CT electricity taking coil skeleton that the present invention customizes, makes current-taking function more perfect, by flowing through on cable or busbar
Primary current carry out induction take electricity, it is superpower to take electrical property;Meanwhile special soft magnetic stripe keeps its induction field ability stronger, only
Want there is 7A or 9A primary current passive module can be allowed to work normally on cable or switch cabinet busbar.
3, passive and wireless temperature measurement module size of the invention is small, and mounting means is convenient, suitable for various sizes cable and
Busbar may be mounted on the inside or outside of contact arm casing, may be mounted at busbar various positions, there is more selections, install
It is more convenient.
4, the power that primary current of the invention senses is from the 80mW of 0.4mW to the 5000A of 3A, since itself is sensed
Power it is small, do not need by protect circuit go to consume how many energy, it is more stable;Shielding case, shielding are provided on control panel
Structure design, anti-interference is good, can easily cope with burst of pulses and the interference of surge bring.
5, the present invention is respectively equipped with 2 ring parts in the two sides of lower cover, and band passes therethrough, and is then bundled in measured object
On body, double tie-type structures, installation is more convenient.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is one embodiment of the present of invention structural schematic diagram；
Marked in the figure: 1- upper cover, 2- lower cover, 3- epoxy temp probe, 4- control panel, 5- super capacitor, 6- soft magnetic stripe, 7- magnetic conduction
Fastener, 8- coil rack.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of power cable and device junction wireless temperature measuring device, including upper cover 1, lower cover 2, soft magnetic stripe 6,
Magnetic conduction fastener 7, coil rack 8, the upper cover 1 is matched with lower cover 2 to be connected together, wherein upper cover 1 and lower cover 2 use
Fire-retardant, high temperature resistant material disposal molding, the two sides of lower cover 2 further respectively have 2 ring parts, are placed with control panel in lower cover 2
4, the side of control panel 4 connects live wire, and electric wire is pierced by lower cover 2, and the end of electric wire is connected with epoxy temp probe 3, described
Control panel 4 is equipped with super capacitor 5, low-power scm, wireless transmitter module, be additionally provided on the control panel 4 shielding case and
Circuit is protected, the protection circuit is made of TVS pipe, varistor, fuse, and control panel 4 is designed using the RF cabling of profession,
Strong antijamming capability, signal transmitting and receiving ability are more preferable.
The coil rack 8 is equipped with soft magnetic stripe 6, and the current range for the induction primary side that soft magnetic stripe 6 adapts to is 7A-
4500A, the opening of soft magnetic stripe 6 are equipped with magnetic conduction fastener 7, are provided with screw hole, soft magnetism on soft magnetic stripe 6 and magnetic conduction fastener 7
Item 6 is tightened together by screw across screw hole with magnetic conduction fastener 7, is provided in the upper cover 1 and lower cover 2 and soft magnetic stripe
6 shape, the compatible groove of width, are placed between the groove of upper cover 1 and the groove of lower cover 2 so as to soft magnetic stripe 6.
The working principle of the invention:
Wireless temperature-measuring sensor takes electricity by flowing through the progress of the primary current on cable CT, then electric will supply super on pcb board
Capacitor charging can power when super capacitor electricity is full to master chip and transmitting module；My company is using straight simultaneously
Measurement method is connect, i.e., temp probe is fitted tightly on measured target point, in this way can be more intuitive, more accurately tested
Data；Test data can be regularly sent by master chip receives terminal, and when the temperature stabilizes, data transmission frequency is slack-off, drop
The power consumption of low product entirety, when temperature change fastly or when the temperature is excessively high, data transmission frequency will increase, and preferably reflect tested mesh
Target real time temperature curve；
The coil of wireless temperature measuring device of the invention uses special soft magnetic materials, itself heat production very little, in the high current of 4000A
Under there is no any temperature influence to monitoring point, be different from traditional silicon steel sheet, the energy taken is very high, and heat production is very big, can aggravate to monitor
The temperature of point.The scope of application of the invention: can be to the big electricity of the high pressures such as bus bar, disconnecting switch, switchgear, ring network cabinet, breaker
The temperature at the positions such as joint, contact and the inlet-outlet line of flow device carries out real-time monitoring, can also to cable surface temperature into
Line collection analysis judges the actual temperature and temperature curve trend of cable, greatly reduces the generation of accident.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (7)
1. a kind of power cable and device junction wireless temperature measuring device, which is characterized in that tight including upper cover, lower cover, coil, magnetic conduction
Firmware, coil rack, the upper cover is matched with lower cover to be connected together, and control panel, the side of control panel are placed in lower cover
Connect live wire, electric wire is pierced by lower cover, and the end of electric wire is connected with temp probe, the control panel be equipped with super capacitor,
Low-power scm, wireless transmitter module；The coil rack is equipped with coil, and the opening of coil is equipped with magnetic conduction fastener,
Coil and magnetic conduction fastener are fixed by screw together, are provided in the upper cover and lower cover and the shape of coil, width phase
The groove of adaptation is placed between the groove of upper cover and the groove of lower cover so as to coil.
2. power cable according to claim 1 and device junction wireless temperature measuring device, which is characterized in that the coil is
Soft magnetic stripe.
3. power cable according to claim 1 and device junction wireless temperature measuring device, which is characterized in that the upper cover and
Lower cover is flame retardant cover.
4. power cable according to claim 1 and device junction wireless temperature measuring device, which is characterized in that the control panel
It is equipped with shielding case and protection circuit, the protection circuit is made of TVS pipe, varistor, fuse.
5. power cable according to claim 1 and device junction wireless temperature measuring device, which is characterized in that the temperature is visited
Head is epoxy temp probe.
6. power cable according to claim 2 and device junction wireless temperature measuring device, which is characterized in that the soft magnetic stripe
The current range of the induction primary side of adaptation is 7A -4500A.
7. power cable according to claim 1 and device junction wireless temperature measuring device, which is characterized in that the lower cover
Two sides further respectively have 2 ring parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919328.7A CN109596244A (en) | 2017-09-30 | 2017-09-30 | Power cable and device junction wireless temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919328.7A CN109596244A (en) | 2017-09-30 | 2017-09-30 | Power cable and device junction wireless temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109596244A true CN109596244A (en) | 2019-04-09 |
Family
ID=65956122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710919328.7A Pending CN109596244A (en) | 2017-09-30 | 2017-09-30 | Power cable and device junction wireless temperature measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109596244A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515623A (en) * | 2015-01-16 | 2015-04-15 | 国家电网公司 | Watch strap type passive wireless online temperature measuring device and monitoring system thereof |
| CN204373789U (en) * | 2015-02-10 | 2015-06-03 | 邯郸市奥瑞电子机械有限公司 | A kind of CT power taking wireless temperature measuring device |
| CN204903038U (en) * | 2015-07-22 | 2015-12-23 | 江苏卓特电气科技有限公司 | Passive wireless temperature transducer |
| CN205079885U (en) * | 2015-09-30 | 2016-03-09 | 国网甘肃省电力公司庆阳供电公司 | Power cable and equipment connect wireless temperature measuring device |
-
2017
- 2017-09-30 CN CN201710919328.7A patent/CN109596244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515623A (en) * | 2015-01-16 | 2015-04-15 | 国家电网公司 | Watch strap type passive wireless online temperature measuring device and monitoring system thereof |
| CN204373789U (en) * | 2015-02-10 | 2015-06-03 | 邯郸市奥瑞电子机械有限公司 | A kind of CT power taking wireless temperature measuring device |
| CN204903038U (en) * | 2015-07-22 | 2015-12-23 | 江苏卓特电气科技有限公司 | Passive wireless temperature transducer |
| CN205079885U (en) * | 2015-09-30 | 2016-03-09 | 国网甘肃省电力公司庆阳供电公司 | Power cable and equipment connect wireless temperature measuring device |
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Application publication date: 20190409 |