CN207163590U - Winding temperature rise detection means and equipment - Google Patents
Winding temperature rise detection means and equipment Download PDFInfo
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- CN207163590U CN207163590U CN201720995858.5U CN201720995858U CN207163590U CN 207163590 U CN207163590 U CN 207163590U CN 201720995858 U CN201720995858 U CN 201720995858U CN 207163590 U CN207163590 U CN 207163590U
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Abstract
A kind of winding temperature rise detection means and equipment are the utility model is related to, winding temperature rise detection means includes：Multiple switch module；Detection module, connected by the way that multiple switch module is corresponding with multiple windings to be measured respectively, multiple test loops are formed, to detect the resistance data of each winding to be measured in multiple windings to be measured；Control module, it is connected respectively with multiple switch module, for connecting corresponding test loop in multiple test loops according to default SECO multiple switch module, to obtain multigroup resistance data of each winding to be measured；Processing module, multigroup resistance data based on each winding to be measured obtain the winding temperature rise data of each winding to be measured.The winding temperature rise detection means and equipment that embodiment of the present utility model provides, can once carry out the temperature rise detection of multiple windings, carry out the switching of wiring without artificial, and can improve the accuracy rate of test data.
Description
Technical field
Winding temperature rise detection technique field is the utility model is related to, more particularly to a kind of winding temperature rise detection means and is set
It is standby.
Background technology
The temperature rise of winding can not only influence the performance of its own, can also influence Electrical Safety, in existing household electrical appliance, such as
The utensil such as refrigerator, compressor, condensation fan, evaporation fan and transformer therein is required to test the temperature rise of its winding, with
Whether the measured data of verification meet relative national standards, and foundation is provided for each utensil safe and reliable operation.
In the prior art, the temperature rise test for winding is general by the way of manual testing, especially for winding quantity
, it is necessary to which two staff's cooperatings, a staff is responsible for switching the wiring of different windings, another in the case of more
Individual staff is responsible for reading winding data.Using manual type test winding temperature rise, it is necessary to the difference according to tested winding
The switching of wiring is carried out successively, operating efficiency is low, can only once test a winding, and for the skill requirement ratio of staff
It is higher, if there is operational error in testing in staff, it will influence the accuracy rate of test data.
Utility model content
Embodiment of the present utility model provides a kind of winding temperature rise detection means and equipment, can once carry out multiple windings
Temperature rise detection, carry out the switching of wiring without artificial, and the accuracy rate of test data can be improved.
On the one hand the utility model embodiment proposes a kind of winding temperature rise detection means, including：Multiple switch module；Inspection
Module is surveyed, is connected by the way that multiple switch module is corresponding with multiple windings to be measured respectively, forms multiple test loops, it is multiple to detect
The resistance data of each winding to be measured in winding to be measured；Control module, it is connected respectively with multiple switch module, for according to pre-
If SECO multiple switch module connects corresponding test loop in multiple test loops, to obtain the more of each winding to be measured
Group resistance data；Processing module, multigroup resistance data based on each winding to be measured obtain the winding temperature rise of each winding to be measured
Data.
According to the one side of the utility model embodiment, control module is specifically used for according to every in multiple test loops
Each test loop circulation connects number to control multiple open in the time interval of individual test loop connection and multiple test loops
Close module and connect corresponding test loop in multiple test loops, to obtain multigroup resistance data of each winding to be measured.
According to the one side of the utility model embodiment, processing module specifically includes：Function curve generation unit, is used for
The resistance data of each winding to be measured of multigroup resistance data generation based on each winding to be measured and each winding to be measured of measurement
Resistance data corresponds to the function curve of time；Hot resistance Data Computation Unit, it is each to be measured for being obtained based on function curve
The resistance of winding and the function formula of time of measuring simultaneously obtain the hot resistance data of each winding to be measured by function formula；Winding
Temperature rise Data Computation Unit, it is each to be measured for being obtained based on hot resistance data and hot resistance data with winding temperature rise function
The winding temperature rise data of winding.
According to the one side of the utility model embodiment, winding temperature rise Data Computation Unit is especially by formula：
Obtain the winding temperature rise data of each winding to be measured, wherein Δ t is winding temperature rise data, R1For cold-state resistance number
According to R2For hot resistance data, t1Room temperature when starting for detection, t2Room temperature at the end of for detection, k are constant.
According to the one side of the utility model embodiment, winding temperature rise detection means also includes：Power supply module, by more
The connection corresponding with multiple windings to be measured respectively of individual switch module, forms multiple current supply circuits, with to each winding power to be measured.
According to the one side of the utility model embodiment, each switch module in multiple switch module is opened including first
Close unit and second switch unit；First switch unit includes first switch part, the first connection end and second connection end, and first
Switch block can switch between the first connection end and second connection end；Second switch unit includes second switch part, the
Three connection ends and the 4th connection end, second switch part can switch between the 3rd connection end and the 4th connection end；First connects
Connect end and the 3rd connection end is connected with detection module, second connection end and the 4th connection end are connected with power supply module, multiple to be measured
The both ends of winding to be measured corresponding with each switch module are connected with first switch part and second switch part respectively in winding；
When first switch part is connected with the first connection end, and second switch part is connected with the 3rd connection end, multiple test back is connected
Corresponding test loop in road；When first switch part is connected with second connection end, second switch part and the 4th connection end connect
When connecing, corresponding current supply circuit in multiple current supply circuits is connected.
According to the one side of the utility model embodiment, winding temperature rise detection means also includes：Input module, with control
Module connects, and for receiving detection instruction, and is sent to control module；Control module is additionally operable to, and response detection instruction, is made multiple
Switch module connects corresponding test loop in multiple test loops according to default sequential.
According to the one side of the utility model embodiment, detection module is digital electric bridge.
The winding temperature rise detection means provided according to the utility model embodiment, it includes multiple switch module, detection mould
Block, control module and processing module, detection module are connected by the way that multiple switch module is corresponding with multiple windings to be measured respectively, formed
Multiple test loops, control module is by controlling multiple switch module multiple according to the connection of default SECO multiple switch module
Corresponding test loop in test loop, can obtain multigroup resistance data of each winding to be measured, and processing module is based on each
Multigroup resistance data of winding to be measured obtains the temperature rise data of each winding to be measured, can once carry out the temperature rise inspection of multiple windings
Survey, carry out the switching of wiring without artificial, and the accuracy rate of test data can be improved.
The utility model embodiment another aspect provides a kind of winding temperature rise detection device, including：Above-mentioned winding
Temperature rise detecting device；And casing, the multiple first interface modules corresponding with multiple switch module are provided with the side wall of casing,
The binding post switch module corresponding with multiple switch module of each first interface module in multiple first interface modules
Connection end connection so that each winding to be measured outside casing connects with corresponding switch module.
According to the other side of the utility model embodiment, when winding temperature rise detection means includes power supply module, case
The multiple second interface modules corresponding with multiple switch module, multiple second interface moulds are further provided with the side wall of body
The connection end connection of the binding post switch module corresponding with multiple switch module of each second interface module of block, so that
Power supply module outside casing connects with corresponding switch module.
According to the other side of the utility model embodiment, the 3rd interface module is additionally provided with the side wall of casing, the
The binding post of three interface modules is connected with the connection end of multiple switch module so that the detection module outside casing with it is more
Individual switch module connection.
According to the other side of the utility model embodiment, communication interface is further provided with the side wall of casing,
So that the processing module outside casing is connected by communication interface with control module.
Brief description of the drawings
The feature of the utility model exemplary embodiment, advantage and technique effect described below with reference to the accompanying drawings.
Fig. 1 is the structured flowchart of the winding temperature rise detection means of the utility model one embodiment；
Fig. 2 is the structured flowchart of the processing module of the utility model one embodiment；
Fig. 3 is the structured flowchart of the winding temperature rise detection means of the utility model another embodiment；
Fig. 4 is the circuit diagram of the winding temperature rise detection means of the utility model another embodiment；
Fig. 5 is the structured flowchart of the winding temperature rise detection means of the utility model another embodiment；
Fig. 6 is the structural representation of the winding temperature rise detection device of the utility model one embodiment.
Wherein：
10- switch modules；
11- first switch units；The connection ends of 111- first；112- first switch parts；113- second connection ends；
12- second switch units；The connection ends of 121- the 3rd；122- second switch parts；The connection ends of 123- the 4th；
20- detection modules；
30- control modules；
40- processing modules；401- function curve generation units；402- hot resistance Data Computation Units；403- winding temperature
Rise Data Computation Unit；
50- windings to be measured；
60- power supply modules；
70- input modules；
100- casings；
101- first interface modules；102- second interface modules；The interface modules of 103- the 3rd；104- communication interfaces；105-
TIP；106- earth leakage protectives；107- emergency stop switch；108- winding passage control buttons.
Embodiment
The feature and exemplary embodiment of various aspects of the present utility model is described more fully below.Retouched in detail in following
In stating, it is proposed that many details, to provide to comprehensive understanding of the present utility model.But for people in the art
It will be apparent that the utility model can be implemented in the case of some details in not needing these details for member.
Description to embodiment below is used for the purpose of providing to of the present utility model more preferable by showing example of the present utility model
Understanding.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Embodiment is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows the structured flowchart of the winding temperature rise detection means of the utility model one embodiment, including multiple opens
Close module 10, detection module 20, control module 30 and processing module 40.
Detection module 20 connects by the way that multiple switch module 10 is corresponding with multiple windings 50 to be measured respectively, forms multiple tests
Loop, control module 30 are connected with multiple switch module 10 respectively, for being connect according to default SECO multiple switch module 10
Lead to corresponding test loop in multiple test loops.Due to detection module 20 by multiple switch module 10 respectively with it is multiple to be measured
Winding 50 is corresponding to be connected, when control module 30 connects phase in multiple test loops according to default SECO multiple switch module 10
During the test loop answered, detection module 20 is able to detect that the resistance of the winding to be measured 50 in the corresponding test loop being switched on,
To obtain multigroup resistance data of each winding 50 to be measured, processing module 40 is connected with detection module 20, can obtain each treat
Survey winding 50 multigroup resistance data, multigroup resistance data based on each winding 50 to be measured obtain each winding to be measured 50 around
Group temperature rise data.
Described default sequential is the time interval and multiple tests that each test loop in multiple test loops is connected
Number is connected in each test loop circulation in loop, i.e. control module 30 is specifically used for according to each survey in multiple test loops
Each test loop circulation connects number to control multiple switch mould in the time interval of examination loop connection and multiple test loops
Block 10 connects corresponding test loop in multiple test loops, to obtain multigroup resistance data of each winding 50 to be measured.Or
Say that described default sequential is：It is pulled to what next test loop was switched on by a test loop in multiple test loops
The number that each test loop is connected by circulation in time interval and multiple test loops.
Each test loop in multiple test loops is only individually switched on, when any two or multiple test loop differences
Connect.
As shown in Fig. 2 processing module 40 specifically includes function curve generation unit 401, hot resistance Data Computation Unit
402 and winding temperature rise Data Computation Unit 403, function curve generation unit 401 can receive the multigroup of each winding to be measured 50
Resistance data, the resistance data of each winding 50 to be measured of multigroup resistance data generation based on each winding 50 to be measured and measurement are every
The resistance data of individual winding to be measured 50 corresponds to the function curve of time, and the resistance data for measuring each winding 50 to be measured corresponds to the time
It is preferred that it can be obtained from control module 30, you can each to obtain measurement so that processing module 40 to be connected with control module 30
The resistance data of winding 50 to be measured corresponds to the time.It is of course also possible to operating personnel are inputted to processing according to the default sequential of setting
Module 40.
Hot resistance Data Computation Unit 402 is obtained each based on the function curve that function curve generation unit 401 generates
The resistance of winding 50 to be measured and the function formula of time of measuring simultaneously obtain the hot resistance of each winding to be measured 50 by function formula
Data.
The hot resistance data that winding temperature rise Data Computation Unit 403 is obtained based on hot resistance Data Computation Unit 402
And hot resistance data obtain the winding temperature rise data of each winding to be measured 50 with winding temperature rise function.
Winding temperature rise Data Computation Unit 403 is especially by formula (1)：
Obtain the winding temperature rise data of each winding to be measured 50, wherein Δ t is winding temperature rise data, R1For cold-state resistance number
According to R2For hot resistance data, t1Room temperature when starting for detection, t2Room temperature at the end of for detection, k are constant.
Described cold-state resistance data R1The resistance of winding to be measured 50 when as detection starts, that is to say winding 50 to be measured
Resistance in the case where being not powered on working condition.Room temperature t when described detection starts1Winding 50 as to be measured is being not powered on work shape
Room temperature under state.Room temperature t at the end of described detection2Room of the winding 50 as to be measured after energization working stability during deenergization
Temperature.Described hot resistance data R2The resistance of winding to be measured 50 at the end of detecting, that is to say that winding 50 to be measured is being powered
The resistance of deenergization moment winding 50 to be measured after working stability.Constant k, it is different for the winding value of unlike material, for
Copper winding, constant k are equal to 234.5, and for aluminium winding, constant k is equal to 225.
In the present embodiment, room temperature t when detection starts1, room temperature t at the end of detection2, it is every in multiple windings 50 to be measured
The cold-state resistance data R of individual winding to be measured 501Input can be measured in advance to winding temperature rise Data Computation Unit 403, it is and hot
The hot resistance data R that resistance data computing unit 402 obtains2The temperature rise data of each winding to be measured 50 are obtained jointly.
In order to preferably control multiple windings to be measured 50 while be powered, accurately to obtain the hot of multiple windings to be measured 50
Resistance data, such as Fig. 3, as shown in figure 4, winding temperature rise detection means still further comprises power supply module 60, power supply module 60 is logical
Cross the connection corresponding with multiple windings 50 to be measured respectively of multiple switch modules 10, form multiple current supply circuits, with to it is each it is to be measured around
Group 50 is powered, i.e., each winding 50 to be measured in multiple windings to be measured 50 passes through switch module 10 and detection module 20 and supplied respectively
Electric module 60 connects, and can control winding 50 to be measured in its corresponding test loop by control module 30 and power accordingly
Switch in loop, when the controlling switch module 10 of control module 30, which acts, make it that current supply circuit is connected, winding to be measured can be caused
50 energization work, when the controlling switch module 10 of control module 30, which acts, make it that test loop is connected, winding 50 to be measured and detection
Module 20 is connected with by the detection resistance data of detection module 20.Multiple switch module 10 can connect with a power supply module 60
Connect, a power supply module 60 can also be correspondingly arranged according to using each switch module 10 of needs.
Each switch module 10 is controlled for the ease of control module 30 so that each winding 50 to be measured is in corresponding current supply circuit
And switch in test loop, each switch module 10 in multiple switch module 10 includes first switch unit 11 and second switch
Unit 12, first switch unit 11 include first switch part 112, the first connection end 111 and second connection end 113, and first opens
Closing part 112 can switch between the first connection end 111 and second connection end 113.Second switch unit 12 is opened including second
Close part 122, the 3rd connection end 121 and the 4th connection end 123, second switch part 122 can be in the 3rd connection end 121 and the
Switch between four connection ends 123；First connection end 111 and the 3rd connection end 121 are connected with detection module 20, second connection end
113 and the 4th connection end 123 be connected with power supply module 60, it is corresponding to be measured with each switch module 10 in multiple windings 50 to be measured
The both ends of winding 50 are connected with first switch part 112 and second switch part 122 respectively；When first switch part 112 and
One connection end 111 connects, and when second switch part 122 is connected with the 3rd connection end 121, connects corresponding in multiple test loops
Test loop；When first switch part 112 is connected with second connection end 113, the connection end 123 of second switch part 122 and the 4th
During connection, corresponding current supply circuit in multiple current supply circuits is connected.At first switch part 112 and second switch part 122
When vacant state, corresponding test loop and current supply circuit disconnect.
In one embodiment, detection module 20 is digital electric bridge, and control module 30 is controlled using PLC, works as control module
30 according to default SECO multiple switch module 10 when connecting corresponding test loop in multiple test loops, and remaining is tested back
The first switch part 112 and second switch part 122 of the switch module 10 on road are in vacant state.
As shown in figure 5, for the ease of detection, winding temperature rise detection means also includes input module 70, input module 70 and
Control module 30 connects, and for receiving detection instruction, and is sent to control module 30.Control module 30 is additionally operable to response detection and referred to
Order, multiple switch module 10 is set to connect corresponding test loop in multiple test loops according to default sequential.
The winding temperature rise detection means that the utility model embodiment provides when in use, can divide multiple windings 50 to be measured
Switch module 10 not with respective numbers connects one to one, and is detected and instructed according to the quantity set of winding 50 to be measured, described
Detection instruction is that control module 30 controls multiple switch module 10 to connect the pre- of corresponding test loop in multiple test loops
If sequential, input module 70 receives detection and instructs and be sent to control module 30, so that control module 30 is according to default sequential control
Multiple switch module 10 processed connects corresponding test loop in multiple test loops, to obtain multigroup electricity of each winding 50 to be measured
Hinder data.
For example, the quantity of winding 50 to be measured is 3, the respectively first winding to be measured, the second winding to be measured and the 3rd are to be measured
Winding, by the connection corresponding with 3 switch modules 10 respectively of 3 windings 50 to be measured, set default sequential and connect as each test loop
Logical time interval 1 second, it is 5 times that number is connected in each test loop circulation.
In detection, the cold-state resistance data and correspondingly of each winding to be measured 50 can be detected successively by other auxiliary equipments
Detection start when room temperature.It can also be tested back by being controlled around the control module 30 of set detecting device corresponding to winding 50 to be measured
Road in turn switches on, and the cold-state resistance data of each winding 50 to be measured is detected successively by detection module 20, by the cold-state resistance of detection
The winding temperature rise Data Computation Unit 403 of room temperature input processing module 40 when data and detection start.
The current supply circuit as corresponding to control module 30 controls 3 windings 50 to be measured is also turned on so that 3 windings 50 to be measured
It is powered simultaneously after work to stabilization, 3 windings 50 to be measured is powered off, and the room temperature by auxiliary equipment measurement now, it is
Room temperature at the end of detection, input to the winding temperature rise Data Computation Unit 403 of processing module 40, while pressed by control module 30
Corresponding test loop in 3 test loops is connected according to above-mentioned default corresponding 3 switch modules 10 of SECO, it is every to obtain
5 groups of resistance datas of individual winding to be measured 50.
Using shutdown transient as the starting point of time 0, detection module 20 can obtain respectively：
Corresponding 5 resistance datas during the 1st, 4,7,10 and 13 second after the first winding to be measured power-off；
Corresponding 5 resistance datas during the 2nd, 5,8,11 and 14 second after the second winding to be measured power-off；
5 resistance datas corresponding to the 3rd, 6,9,12 and 15 second after 3rd winding power-off to be measured.
The function curve generation unit 401 of processing module 40 receives 5 groups of resistance datas of each winding to be measured 50, based on every
The electricity of the resistance data and each winding 50 to be measured of measurement of each winding 50 to be measured of 5 groups of resistance datas generation of individual winding to be measured 50
Resistance data correspond to the function curve of time.Hot resistance Data Computation Unit 402 is generated based on function curve generation unit 401
Function curve obtains the resistance of each winding to be measured 50 and the function formula of time of measuring, calculates that time of measuring is by function formula
It is the hot resistance data that resistance corresponding to shutdown transient is each winding 50 to be measured during 0 moment.Winding temperature rise data calculate
Unit 403 is based on the obtained hot resistance data of hot resistance Data Computation Unit 402 and the cold-state resistance data measured, detection
The room temperature at the end of room temperature, detection during beginning obtains the winding temperature rise data of each winding to be measured 50, completes test.
The winding temperature rise detection means that the utility model embodiment provides can once carry out the temperature rise detection of multiple windings,
Without manually carrying out the switching of wiring, and the accuracy rate of test data can be improved.
According to the utility model one embodiment, as shown in fig. 6, a kind of winding temperature rise detection device is additionally provided, including
The winding temperature rise detection means and casing 100 of the various embodiments described above, it is provided with and multiple switch module 10 in the side wall of casing 100
Corresponding multiple first interface modules 101, each first interface module 101 include two binding posts, each first interface
The connection end connection of two binding posts switch module 10 corresponding with multiple switch module 10 of module 101.In a reality
Apply in example, described connection end is preferably the first switch part 112 and second switch part 122 of corresponding switch module 10 herein
End pin, in order to which each winding 50 to be measured outside casing 100 connects with corresponding switch module 10.
As an alternative embodiment, it is further provided with the side wall of casing 100 and multiple switch module
10 corresponding multiple second interface modules 102, each second interface module 102 include two binding posts, and each second connects
The connection end connection of two binding posts switch module 10 corresponding with multiple switch module 10 of mouth mold block 102, at one
In embodiment, described connection end is preferably the connection end 123 of second connection end 113 and the 4th of corresponding switch module 10 herein,
, in one embodiment, can be with every in order to which the power supply module 60 outside casing 100 connects with corresponding switch module 10
Individual switch module 10 is correspondingly arranged on a power supply module 60.
As an alternative embodiment, the 3rd interface module 103 is additionally provided with the side wall of casing 100, the 3rd
The binding post of interface module 103 is connected with the connection end of multiple switch module 10, in the present embodiment, described connection end herein
First connection end 111 of preferably several switch modules 10 and the 3rd connection end 121, in order to the inspection outside casing 100
Module 20 is surveyed to be connected with multiple switch module 10.
As an alternative embodiment, communication interface 104 is further provided with the side wall of casing 100, with
It is easy to the processing module 40 outside casing 100 to be connected by communication interface 104 with control module 30 so that processing module 40
Time of measuring corresponding to multigroup resistance data of each winding 50 to be measured of measurement, convenient generation can be obtained from control module 30
The function curve of the resistance data of each winding 50 to be measured time corresponding with the resistance data for measuring each winding 50 to be measured.Input
Module 70 uses TIP 105, and TIP 105 is embedded in the side wall of casing 100 and is connected with control module 30, just
Instructed in receiving detection.
For the safety to winding temperature rise detection device, in one embodiment, winding temperature rise detection device is preferably also set
Be equipped with emergency stop switch 107 and/or earth leakage protective 106, with avoid because short circuit, electric leakage etc. failure occur when breakage detection device.Together
When, it is provided with the side wall of casing 100 and the quantity identical winding passage control button 108 of multiple switch module 10, winding
Passage control button 108 is capable of the break-make of manual controling winding, and can confirm that the wiring state of winding.
The winding temperature rise detection device that the utility model embodiment provides, when in use, can be by multiple windings 50 to be measured
The first interface module 101 with respective numbers connects one to one respectively, is detected and instructed according to the quantity set of winding 50 to be measured,
TIP 105 receives detection and instructs and be sent to control module 30, so that control module 30 instructs according to detection, i.e., when default
Sequence control multiple switch module 10 connects corresponding test loop in multiple test loops, to obtain the more of each winding 50 to be measured
Group resistance data, multigroup resistance data of the processing module 40 based on each winding 50 to be measured obtain the winding of each winding 50 to be measured
Temperature rise data, can once carry out the temperature rise detection of multiple windings, carry out the switching of wiring without artificial, and can improve test
The accuracy rate of data.
Although the utility model is described by reference to preferred embodiment, model of the present utility model is not being departed from
In the case of enclosing, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as not depositing
The every technical characteristic being previously mentioned in structural hazard, each embodiment can combine in any way.The utility model
It is not limited to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.
Claims (12)
- A kind of 1. winding temperature rise detection means, it is characterised in that including：Multiple switch module；Detection module, connected by the way that the multiple switch module is corresponding with multiple windings to be measured respectively, form multiple test loops, To detect the resistance data of each winding to be measured in the multiple winding to be measured；Control module, it is connected respectively with the multiple switch module, for according to the multiple switch module of default SECO Corresponding test loop in the multiple test loop is connected, to obtain multigroup resistance data of each winding to be measured；Processing module, multigroup resistance data based on each winding to be measured obtain the winding temperature rise of each winding to be measured Data.
- 2. winding temperature rise detection means according to claim 1, it is characterised in that the control module be specifically used for according to Each tested back in the time interval of each test loop connection in the multiple test loop and the multiple test loop Road circulation connects number to control the multiple switch module to connect corresponding test loop in the multiple test loop, to obtain Take multigroup resistance data of each winding to be measured.
- 3. winding temperature rise detection means according to claim 1, it is characterised in that the processing module specifically includes：Function curve generation unit, for multigroup resistance data generation based on each winding to be measured it is described it is each it is to be measured around The function curve of the resistance data of group time corresponding with the resistance data for measuring each winding to be measured；Hot resistance Data Computation Unit, for obtaining resistance and the measurement of each winding to be measured based on the function curve The function formula of time simultaneously obtains the hot resistance data of each winding to be measured by the function formula；Winding temperature rise Data Computation Unit, for based on the hot resistance data and the hot resistance data and winding temperature rise Function obtains the winding temperature rise data of each winding to be measured.
- 4. winding temperature rise detection means according to claim 3, it is characterised in that the winding temperature rise Data Computation Unit Especially by formula：<mrow> <mi>&Delta;</mi> <mi>t</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>R</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>R</mi> <mn>1</mn> </msub> </mrow> <msub> <mi>R</mi> <mn>1</mn> </msub> </mfrac> <mrow> <mo>(</mo> <mi>k</mi> <mo>+</mo> <msub> <mi>t</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> <mo>-</mo> <mrow> <mo>(</mo> <msub> <mi>t</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>t</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </mrow>Obtain the winding temperature rise data of each winding to be measured, wherein Δ t is winding temperature rise data, R1For cold-state resistance data, R2For hot resistance data, t1Room temperature when starting for detection, t2Room temperature at the end of for detection, k are constant.
- 5. winding temperature rise detection means according to claim 1, it is characterised in that also include：Power supply module, connected by the way that the multiple switch module is corresponding with the multiple winding to be measured respectively, form multiple power supplies Loop, with to each winding power to be measured.
- 6. winding temperature rise detection means according to claim 5, it is characterised in that each in the multiple switch module Switch module includes first switch unit and second switch unit；The first switch unit includes first switch part, the first connection end and second connection end, the first switch part It can switch between first connection end and the second connection end；The second switch unit includes second switch part, the 3rd connection end and the 4th connection end, the second switch part It can switch between the 3rd connection end and the 4th connection end；First connection end and the 3rd connection end are connected with the detection module, the second connection end and the described 4th Connection end is connected with the power supply module, winding to be measured corresponding with each switch module in the multiple winding to be measured Both ends are connected with the first switch part and the second switch part respectively；When the first switch part is connected with first connection end, the second switch part connects with the 3rd connection end When connecing, corresponding test loop in the multiple test loop is connected；When the first switch part is connected with the second connection end, the second switch part connects with the 4th connection end When connecing, corresponding current supply circuit in the multiple current supply circuit is connected.
- 7. winding temperature rise detection means according to claim 1, it is characterised in that also include：Input module, it is connected with the control module, for receiving detection instruction, and is sent to the control module；The control module is additionally operable to, and is responded the detection instruction, the multiple switch module is connected institute according to default sequential State corresponding test loop in multiple test loops.
- 8. winding temperature rise detection means according to claim 1, it is characterised in that the detection module is digital electric bridge.
- A kind of 9. winding temperature rise detection device, it is characterised in that including：Winding temperature rise detection means as described in claim 1 to 8 any one；WithCasing, the multiple first interface modules corresponding with the multiple switch module, institute are provided with the side wall of the casing The binding post for stating each first interface module in multiple first interface modules corresponding with the multiple switch module is opened The connection end connection of module is closed, so that each winding to be measured and the corresponding switch module outside the casing Connection.
- 10. winding temperature rise detection device according to claim 9, it is characterised in that when the winding temperature rise detection means During including power supply module, multiple corresponding with the multiple switch module are further provided with the side wall of the casing Two interface modules, binding post and the multiple switch module of each second interface module of the multiple second interface module In corresponding switch module connection end connection so that the power supply module outside the casing corresponding is opened with described Close module connection.
- 11. winding temperature rise detection device according to claim 9, it is characterised in that also set up in the side wall of the casing There is the 3rd interface module, the binding post of the 3rd interface module is connected with the connection end of the multiple switch module, so that The detection module outside the casing is connected with the multiple switch module.
- 12. winding temperature rise detection device according to claim 9, it is characterised in that also enter one in the side wall of the casing Step is provided with communication interface, so that the processing module outside the casing passes through the communication interface and the control Module connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478348A (en) * | 2017-08-09 | 2017-12-15 | 中国标准化研究院 | Winding temperature rise detection means, device and method |
| CN111536666A (en) * | 2020-04-27 | 2020-08-14 | 青岛海信日立空调系统有限公司 | Air conditioning system |
| CN111638484A (en) * | 2020-06-11 | 2020-09-08 | 格力电器（郑州）有限公司 | Coil material detection device and detection method |
| CN113009340A (en) * | 2021-03-15 | 2021-06-22 | 日立电梯电机（广州）有限公司 | Motor temperature rise testing device, testing control method thereof and controller |
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2017
- 2017-08-09 CN CN201720995858.5U patent/CN207163590U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478348A (en) * | 2017-08-09 | 2017-12-15 | 中国标准化研究院 | Winding temperature rise detection means, device and method |
| CN111536666A (en) * | 2020-04-27 | 2020-08-14 | 青岛海信日立空调系统有限公司 | Air conditioning system |
| CN111638484A (en) * | 2020-06-11 | 2020-09-08 | 格力电器（郑州）有限公司 | Coil material detection device and detection method |
| CN113009340A (en) * | 2021-03-15 | 2021-06-22 | 日立电梯电机（广州）有限公司 | Motor temperature rise testing device, testing control method thereof and controller |
| CN113009340B (en) * | 2021-03-15 | 2023-02-28 | 日立电梯电机（广州）有限公司 | Motor temperature rise testing device, testing control method thereof and controller |
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