CN207840481U - Welding equipment and its control device - Google Patents
Welding equipment and its control device Download PDFInfo
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- CN207840481U CN207840481U CN201721761947.XU CN201721761947U CN207840481U CN 207840481 U CN207840481 U CN 207840481U CN 201721761947 U CN201721761947 U CN 201721761947U CN 207840481 U CN207840481 U CN 207840481U
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Abstract
The disclosure provides a kind of control device and welding equipment of welding equipment, is related to welding technology field.The control device of the disclosure is used for a welding equipment, which includes IGBT components and radiator fan.The control device of the disclosure includes that temperature rises detection components, comparing component and control assembly.Temperature rises temperature rise value of the detection components for detecting IGBT components in real time.Comparing component rises detection components with temperature simultaneously and radiator fan is connect, for comparing temperature rise value and first threshold.The rotating speed that control assembly is used to control radiator fan when temperature rise value is less than first threshold is the first rotating speed；When temperature rise value is not less than first threshold, the rotating speed for controlling radiator fan is more than the first rotating speed.
Description
Technical field
This disclosure relates to welding technology field, in particular to a kind of welding equipment and the control device of welding equipment.
Background technology
With the development of welding technique, requirement of the people to welding equipment is also higher and higher.Currently, widely used
Welding equipment is inverter type welder, and traditional thyristor welder is superior in performance, volume, weight, energy saving etc..Wherein,
IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) component is existing inverter type welder
Realize that the critical component automatically controlled with changed power, IGBT components generally comprise shell, chip and substrate, substrate and chip are equal
In shell, and chip is set on substrate.The temperature of IGBT components is excessively high in order to prevent, ensures IGBT components normal work,
It is equipped with radiator fan in existing inverter type welder, air-flow is formed by radiator fan, to achieve the purpose that heat dissipation.
But existing welding equipment is after powering, internal radiator fan is started to work immediately, and no matter IGBT components
Temperature how to change, radiator fan is always with constant rotation speed operation, if the rotating speed is higher, be easy exceed radiating requirements,
The temperature shock that may cause IGBT components, makes the lost of life of IGBT components, is also unfavorable for improving the service life of radiator fan.If
Rotating speed is relatively low, then with the raising of IGBT temperature, it is difficult to reach required heat dissipation effect, be unfavorable for improving the longevity of IGBT components
Life.
It should be noted that information is only used for reinforcing the reason to the background of the disclosure disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Invention content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, providing a kind of can improve IGBT components and dissipate
The welding equipment in Hot-air fan service life and the control device of welding equipment.
According to one aspect of the disclosure, a kind of control device of welding equipment is provided, a welding equipment, the weldering are used for
It includes IGBT components and radiator fan to connect equipment, and the control device includes：
Temperature rises detection components, the temperature rise value for detecting the IGBT components in real time；
Comparing component, while being connect with temperature liter detection components and the radiator fan, it is used for the temperature rise value
With first threshold；
Control assembly, for when the temperature rise value is less than the first threshold, the rotating speed for controlling the radiator fan to be
First rotating speed；And when the temperature rise value is not less than the first threshold, the rotating speed for controlling the radiator fan is more than described the
One rotating speed.
In a kind of exemplary embodiment of the disclosure, the comparing component is used in the temperature rise value not less than described the
When one threshold value, the temperature rise value and second threshold, the second threshold are more than the first threshold；
The control assembly is used for when the temperature rise value is not less than the first threshold and is less than the second threshold, control
The rotating speed for making the radiator fan is the second rotating speed, and second rotating speed is more than first rotating speed；And the temperature rise value not
When less than the second threshold, the rotating speed for controlling the radiator fan is third rotating speed, and the third rotating speed is more than described second
Rotating speed.
In a kind of exemplary embodiment of the disclosure, the control device further includes prompt component；The comparing component
For when the temperature rise value is not less than the second threshold, the temperature rise value and third threshold value, the third threshold value to be big
In the second threshold；
The control assembly is used to, when the temperature rise value is not less than the third threshold value, control the prompt component and send out
Overheating prompt.
In a kind of exemplary embodiment of the disclosure, the comparing component is used in the temperature rise value not less than described the
When three threshold values, the temperature rise value and the 4th threshold value, the 4th threshold value are more than the third threshold value；
The control assembly is used to, when the temperature rise value is not less than four threshold value, control the welding equipment and stop
Welding.
In a kind of exemplary embodiment of the disclosure, the control device further includes alarm assemblies；The control assembly
For when the temperature rise value is not less than four threshold value, controlling the alarm assemblies and sending out alarm.
In a kind of exemplary embodiment of the disclosure, first rotating speed is zero.
In a kind of exemplary embodiment of the disclosure, the temperature rises detection components and includes：
First temperature sensitive member, the internal temperature for detecting the IGBT components；
Second temperature sensing element, the environment temperature for detecting the IGBT component externals；
Computing element, the difference for calculating the internal temperature and the environment temperature, to obtain the temperature rise value.
In a kind of exemplary embodiment of the disclosure, the IGBT components have the substrate in shell and the shell,
First temperature sensitive member is set on the substrate, and the second temperature sensing element is set to the outer surface of the shell.
In a kind of exemplary embodiment of the disclosure, first temperature sensitive member and/or second temperature induction member
Part includes thermistor.
According to one aspect of the disclosure, a kind of welding equipment, including IGBT components and radiator fan, the welding are provided
Equipment further includes the control device described in above-mentioned any one.
The welding equipment of the disclosure and the control device of welding equipment, can be real-time by temperature liter detection components by comparing component
The temperature rise value of the IGBT components of detection is compared with first threshold, when temperature rise value is less than first threshold, is made by control assembly
The rotating speed of radiator fan is the first rotating speed；When temperature rise value is not less than first threshold, the rotating speed of radiator fan is made to be more than first turn
Speed.To associate the rotating speed of radiator fan with the temperature rise value of IGBT components, according to the size of temperature rise value and first threshold
Relationship adjusts the rotating speed of radiator fan, avoids radiator fan always with constant rotation speed operation, can avoid because of low-speed running always
It is difficult to meet radiating requirements；It can also prevent from making IGBT component temperature change dramaticallies because running at high speed always, to be conducive to prolong
The service life of long IGBT components and radiator fan.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The disclosure can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.It should be evident that the accompanying drawings in the following description is only the disclosure
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the block diagram of the utility model example embodiment control device.
The temperature of Fig. 2 the utility model example embodiment control devices rises the block diagram of detection components.
Fig. 3 is the structural schematic diagram of the utility model example embodiment welding equipment.
Fig. 4 is the first temperature sensitive member and second temperature induction member of the utility model example embodiment control device
The assembling schematic diagram of part and IGBT components.
Fig. 5 is the schematic diagram of the temperature rise value of the chip of existing IGBT components and the curve of thermal power cycle-index (service life).
Fig. 6 is the flow chart of the course of work of the utility model example embodiment control device.
In figure：1, temperature rises detection components；11, the first temperature sensitive member；12, second temperature sensing element；13, Computing Meta
Part；2, comparing component；3, control assembly；4, radiator fan；5, component is prompted；6, alarm assemblies；7, IGBT components；71, shell；
72, substrate；73, chip；8, casing.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the disclosure will more
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, knot
Structure or characteristic can be in any suitable manner incorporated in one or more embodiments.In the following description, it provides perhaps
More details fully understand embodiment of the present disclosure to provide.It will be appreciated, however, by one skilled in the art that can
It is omitted with technical solution of the disclosure one or more in the specific detail, or may be used other groups
Part, device etc..In other cases, known solution is not shown in detail or describes to avoid a presumptuous guest usurps the role of the host and makes the disclosure
Various aspects thicken.
In addition, attached drawing is only the schematic illustrations of the disclosure, it is not necessarily drawn to scale.Identical attached drawing mark in figure
Note indicates same or similar part, thus will omit repetition thereof.Some block diagrams shown in attached drawing are work(
Energy entity, not necessarily must be corresponding with physically or logically independent entity.It in one or more hardware modules or can integrate
These functional entitys are realized in circuit, or realize these in heterogeneous networks and/or processor device and/or microcontroller device
Functional entity.
Term "one", " one ", "the" and " described " to indicate there are one or more elements/component part/etc.；With
Language " comprising " and " having " is indicating the open meaning being included and refer to element/composition portion in addition to listing
Also may be present except divide/waiting other element/component part/etc.；Term " first ", " second ", " third " and " the 4th " etc. is only
It is used as label, is not the quantity limitation to its object.
Disclosure example embodiment provides a kind of control device of welding equipment, is used for a welding equipment, such as Fig. 3 and
Shown in Fig. 4, which may include casing 8, IGBT components 7 and radiator fan 4, wherein IGBT components 7 and radiator fan
4 can be set in casing 8.As shown in figure 3, IGBT components 7 may include shell 71, substrate 72, chip 73 and radiator (in figure
It is not shown), substrate 72 and chip 73 are respectively positioned in shell 71, and chip 73 is set on substrate 72, and substrate 72 can be located on radiator.
Other compositions of the concrete structure and welding equipment of IGBT components 7 and radiator fan 4 can refer to existing welding equipment, herein not
It is described in detail again.
As shown in Figure 1, the control device of this example embodiment, which may include temperature, rises detection components 1, comparing component 2 and control
Component 3 processed, wherein：
Temperature rises detection components 1 can detect the temperature rise value of the IGBT components 7 in real time.
Comparing component 2 rises detection components 1 with temperature simultaneously and radiator fan 4 is connect, and comparing component 2 may compare above-mentioned Wen Sheng
Value and first threshold.
Control assembly 3 can be when temperature rise value be less than first threshold, and the rotating speed of control radiator fan 4 is the first rotating speed；And it can
When temperature rise value is not less than first threshold, the rotating speed of control radiator fan 4 is more than the first rotating speed.
The rotating speed of radiator fan 4 can be associated with by the control device of this example embodiment with the temperature rise value of IGBT components 7
Come, the rotating speed of radiator fan 4 is adjusted according to the magnitude relationship of the temperature rise value of IGBT components 7 and first threshold so that radiator fan 4
It is no longer operated, be can avoid because low-speed running is difficult to meet radiating requirements always with constant rotational speed always；It can also prevent because high always
Speed operates and makes 7 temperature change dramatically of IGBT components, i.e. quenching or shock heating, to be conducive to extend IGBT components 7 and radiation air
The service life of fan 4.
In the following, by each component of the control device of the welding equipment of this example embodiment is further detailed.
In this example embodiment, as shown in Fig. 2, temperature rises detection components 1 can detect the Wen Sheng of IGBT components 7 in real time
Value, it may include the first temperature sensitive member 11, second temperature sensing element 12 and computing element 13 that temperature, which rises detection components 1,
In：
First temperature sensitive member 11 can be the temperature sensor of contact, such as thermal resistance temperature sensor, thermoelectricity
Even temperature sensor etc. can be set in IGBT components 7, and the internal temperature of detectable IGBT components 7.For example, first
Temperature sensitive member 11 can be set on substrate 72, can be using the temperature of substrate 72 as IGBT to the temperature of detectable substrate 72
The internal temperature of component, and the temperature of internal temperature reflection IGBT device wafers 73 can be used.Pass through in compared to the prior art
For the temperature that sensor on the radiator of IGBT components detects, since substrate 72 is closer to chip 73, because
And the temperature of substrate 72 can more accurately reflect the temperature of chip 73, and the work of IGBT components 7 is mainly by the shadow of chip 73
It rings, so, be conducive to improve the reliability of testing result using the temperature of substrate 72 as the internal temperature of IGBT components 7.Certainly,
First temperature sensitive member 11 can also be that contactless temperature sensor, such as infrared temperature sensor etc. can be set to
In the shell 71 of IGBT components 7, the temperature of substrate 72 or direct detection chip 73 can detect.
For example, as shown in figure 4, the first temperature sensitive member 11 can be thermal resistance temperature sensor, may include
Thermistor, the thermistor can be set on the substrate 72 of IGBT components 7, and can be with the substrate 72 by being clamped or utilizing screw
The modes such as connection connect, and the temperature change of substrate 72 can be incuded by the thermistor, using 72 temperature of substrate as IGBT components 7
Internal temperature, concrete principle can refer to the operation principle of existing thermal resistance temperature sensor detection temperature, and this will not be detailed here.
Second temperature sensing element 12 can also be the contacts such as thermal resistance temperature sensor, thermocouple temperature sensor
The contactless temperature sensor such as temperature sensor or infrared temperature sensor.It can by second temperature sensing element 12
Detect the environment temperature outside IGBT components 7.It can be set to outside the shell 71 of IGBT components 7, can detect around IGBT components 7
Environment temperature.
For example, as shown in figure 4, second temperature sensing element 12 can be thermal resistance temperature sensor, may include
Thermistor, the thermistor can be set to the outer surface of shell 71, and can be with the shell 71 by being clamped or being connect using screw
Etc. modes connect, can be by the variation of the thermistor induced environment temperature, to the environment outside detection IGBT components 7 in real time
Temperature.Certainly, second temperature sensing element 12 can also be set to the other positions outside IGBT components 7, not do particular determination herein.
Computing element 13 can be a subtraction circuit, and but not limited to this, can also be the processing that can realize subtraction
Device etc., as long as subtraction can be realized.Computing element 13 can simultaneously with the first above-mentioned temperature sensitive member 11 and second
Temperature sensitive member 12 connects, and can receive the internal temperature and for the IGBT components 7 that the first temperature sensitive member 11 detects
The environment temperature that two temperature sensitive members 12 detect, and the difference of the internal temperature and environment temperature can be calculated, which is
The temperature rise value of IGBT components 7.In addition, computing element 13 can be located in shell 71, may be alternatively located at outside shell 71 or outside casing 8,
Chip 73 can also be integrated in.
In this example embodiment, as shown in Figure 1, comparing component 2 can be a comparison circuit, it can be with above-mentioned temperature
Rise detection components 1 connect, and can real-time reception temperature rise detection components 1 detect temperature rise value.
Temperature rise value can be compared by comparing component 2 with a first threshold.It is exportable when temperature rise value is less than first threshold
First speed-regulating signal or non-output signal.
It is not less than first threshold in temperature rise value, that is, when being greater than or equal to first threshold, comparing component 2 can be further to Wen Sheng
Value is compared with second threshold, and second threshold is more than first threshold.Not less than first threshold and it is less than the second threshold in temperature rise value
When value, 2 exportable second speed-regulating signal of comparing component.
It is not less than second threshold in temperature rise value, that is, when being greater than or equal to second threshold, comparing component 2 can be further by Wen Sheng
Value is compared with third threshold value, and third threshold value is more than second threshold.In temperature rise value not less than the second threshold and less than the
When three threshold values, 2 exportable third speed-regulating signal of comparing component.
When temperature rise value is not less than third threshold value, temperature rise value can be further compared by comparing component 2 with the 4th threshold value,
4th threshold value is more than third threshold value, and when temperature rise value is not less than third threshold value and is less than four threshold values, comparing component 2 is exportable to be carried
Show signal.Be not less than the 4th threshold value in temperature rise value, that is, when being greater than or equal to four threshold values, 2 exportable protection signal of comparing component.
The determination of first threshold, second threshold, third threshold value and the 4th threshold value is illustrated below：
As shown in figure 5, showing the temperature rise value and thermal power cycle-index (service life) of the chip of existing IGBT components in Fig. 5
Curve, the abscissa in Fig. 5 is temperature rise value △ Tj, △ Tj=Tj- Tc, TjFor the temperature of the chip of IGBT components, TcFor environment
Temperature, ordinate are thermal power cycle-index, and 2s is the service time of IGBT components, and 18s is the turn-off time of the IGBT components.
△ T are can be seen that by the curve in Fig. 5jBigger, thermal power cycle-index is lower.Such as：△TjWhen=35K, heating rate cycle
Number is 108If working condition is 3000 times/day daily, service life is about 30000 days, i.e., about 100 years；△Tj=47K
When, heating rate cycle-index is 107If working condition is 3000 times/day daily, service life is about 3000 days, i.e., about 10 years.
The △ T it can be seen from above-mentioned curvejBefore=20K, the influence of the variation of temperature rise value to thermal power cycle-index is not
Greatly, thus, above-mentioned first threshold can be 20K, and second threshold can be 30K.
Third threshold value can be then welding equipment in rated output, the maximum temperature rise value of IGBT components 7, alternatively, third
Threshold value also may be slightly larger than the maximum temperature rise value, such as third threshold value is higher by than the maximum temperature rise value within 5%.
4th threshold value can be welding equipment in rated output, calculated and managed according to the voltage current waveform of IGBT components 7
By power consumption 7 energy of IGBT components are calculated in conjunction with the specifications parameter of IGBT components 7, such as saturation voltage drop, thermal resistance, permission junction temperature
The maximum temperature-rise value born can also be slightly less than the maximum temperature rise value certainly, for example, the 4th threshold value it is lower than the maximum temperature-rise value go out
Within 10%.
Certainly, the value of the above first threshold, second threshold, third threshold value and the 4th threshold value or determining method are merely illustrative
Property explanation, do not constitute the restriction to first threshold, second threshold, third threshold value and the 4th threshold value, can be according to IGBT components 7
The concrete specification incorporates experience into and determines first threshold, second threshold, third threshold value and the 4th threshold value with experimental data, herein no longer
It is described in detail.
In this example embodiment, as shown in Figure 1, control assembly 3 can be an electricity that can control 4 rotating speed of radiator fan
Road can also be a processor with said function, can also be integrated in same processor or electricity with above-mentioned comparing component 2
Particular determination is not done on road herein.
Control assembly 3 can receive the signal that comparing component 2 is sent out, and compare receiving the first speed-regulating signal or not receiving
When the signal of component 2, i.e., when temperature rise value is less than first threshold, can control the rotating speed of radiator fan 4 is the first rotating speed.This first turn
Speed can be 0, that is to say, that temperature rise value be less than first threshold when, radiator fan 4 does not rotate, to avoid temperature rise value compared with
It rotates radiator fan 4 when low, advantageously reduces into the dust inside welding equipment casing 8.Certainly, the first rotating speed is also with big
In 0, but less than the maximum (top) speed of radiator fan 4, concrete numerical value does not do particular determination herein.
For control assembly 3 when receiving the second speed-regulating signal, i.e., temperature rise value not less than first threshold and is less than second threshold
When, can control the rotating speed of radiator fan 4 is the second rotating speed, which is more than the first rotating speed, and most less than radiator fan 4
Big rotating speed, concrete numerical value do not do particular determination herein.
For control assembly 3 when receiving third speed-regulating signal, i.e., temperature rise value not less than second threshold and is less than third threshold value
When, can control the rotating speed of radiator fan 4 is third rotating speed, which is more than the second rotating speed, can be equal to or less than radiation air
The maximum (top) speed of fan 4, concrete numerical value do not do particular determination herein.
The control device of disclosure example embodiment can also include prompt component 5, and control assembly 3 compares receiving
When the standby signal that component 2 is sent out, i.e. temperature rise value can control prompt component 5 not less than third threshold value and when being less than four threshold values
Send out overheating prompt.Meanwhile radiator fan 4 can be kept with third rotation speed operation.
The prompt component 5 may include the display devices such as liquid crystal display, light-emitting diode display, and but not limited to this, can be with
The sound-producing device etc. of prompt tone can be sent out including buzzer etc., as long as overheating prompt picture can be sent out or send out prompt tone.
Depending on sending out the concrete type of mode visual cues component 5 of overheating prompt, if prompt component 5 includes display device, send out
The mode of overheating prompt can be that display overheating prompt picture sends out overheating prompt if prompt component 5 includes sound-producing device
Mode can send out overheating prompt sound.
In addition, for the prompt component 5 including display device, overheating prompt picture can include the word of prompt overheat
Symbol, meanwhile, overheating prompt picture can also include prompt air outlet or fan dedusting, prompt fan failure or other faults
Etc. information character, targetedly handled convenient for staff, improve maintenance efficiency.
For example, prompt component 5 is display device, and control assembly 3 can control when receiving above-mentioned standby signal
The display device shows overheating prompt picture, and overheating prompt picture may include word or figure etc..
The control device of disclosure example embodiment can also include alarm assemblies 6, and control assembly 3 is receiving protection
When signal, i.e., when temperature rise value is not less than four threshold values, illustrate that the temperature of IGBT components 7 is excessively high, at this point, controllable welding equipment
Alarm assemblies 6 send out alarm, to prompt staff's timely processing.Meanwhile also controllable welding equipment stops welding, to anti-
Only IGBT components 7 are damaged because temperature is excessively high.Certainly, the control device of disclosure example embodiment can not also include alarm
Component 6, when temperature rise value is not less than four threshold values, control assembly 3 only controls welding equipment and stops welding, without sending out alarm.
Meanwhile control assembly 3 can keep radiator fan 4 with third rotation speed operation.
Alarm assemblies 6, which may include the display devices such as liquid crystal display, light-emitting diode display or buzzer etc., can send out and carry
Show the sound-producing device etc. of sound, as long as alarm can be sent out, send out the concrete type of the mode visual alarm component 6 of alarm and
Fixed, if alarm assemblies 6 include display device, the mode for sending out alarm can be display alarm screen, if alarm assemblies 6 include
Sound-producing device, the then mode for sending out alarm can send out alarm sound.
For example, alarm assemblies 6 are display device and sound-producing device, and control assembly 3 is receiving above-mentioned protection letter
Number when, can control the display device to show and alarm picture or glisten, and send out alarm sound.Meanwhile control assembly 3 is controlled
Welding equipment processed stops welding.
It should be noted that above-mentioned prompt component 5 and alarm assemblies 6 can be independently of the component of welding equipment,
Can be the suggestion device or warning device that welding equipment itself carries.
The course of work of the control device of this example embodiment welding equipment can refer to Fig. 6, the step S110- in Fig. 6
Step S190 and step S210- steps S240 shows the course of work of the control device of this example embodiment.
Disclosure example embodiment also provides a kind of welding equipment, as shown in figure 3, the welding machine of this example embodiment is set
Standby may include the control device of casing 8, IGBT components 7, radiator fan 4 and any of the above-described example embodiment, wherein：Casing
8 can be equipped with air outlet, and IGBT components 7 and radiator fan 4 can be set in the casing 8, and radiator fan 4 can be opposite with air outlet,
It can be formed and be dried to outside casing 8 by air outlet, realize heat dissipation.As shown in figure 4, IGBT components 7 may include shell 71, substrate
72 and chip 73, substrate 72 and chip 73 are set in shell 71, and chip 73 is set on substrate 72.Above-mentioned control device can be set to
In casing 8, specific mounting means can refer to the example embodiment of above-mentioned control device, and this will not be detailed here.7 He of IGBT components
The concrete structure of radiator fan 4 and other compositions of welding equipment can refer to existing welding equipment, and this will not be detailed here.
In control device used by welding equipment due to present embodiment and above-mentioned control device example embodiment
Control device it is identical, therefore, the advantageous effect of welding equipment can refer to the advantageous effect of above-mentioned control device, herein no longer in detail
It states.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and includes the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by appended
Claim is pointed out.
Claims (10)
1. a kind of control device of welding equipment is used for a welding equipment, the welding equipment includes IGBT components and radiation air
Fan, which is characterized in that the control device includes：
Temperature rises detection components, the temperature rise value for detecting the IGBT components in real time；
Comparing component, while rising detection components and the radiator fan with the temperature and connect is used for the temperature rise value and the
One threshold value；
Control assembly, the rotating speed for when the temperature rise value is less than the first threshold, controlling the radiator fan is first
Rotating speed；And when the temperature rise value is not less than the first threshold, the rotating speed for controlling the radiator fan is more than described first turn
Speed.
2. control device according to claim 1, which is characterized in that the comparing component is used for not small in the temperature rise value
When the first threshold, the temperature rise value and second threshold, the second threshold are more than the first threshold；
The control assembly is used to, when the temperature rise value is not less than the first threshold and is less than the second threshold, control institute
The rotating speed for stating radiator fan is the second rotating speed, and second rotating speed is more than first rotating speed；And it is not less than in the temperature rise value
When the second threshold, the rotating speed for controlling the radiator fan is third rotating speed, and the third rotating speed is more than second rotating speed.
3. control device according to claim 2, which is characterized in that the control device further includes prompt component；It is described
Comparing component is used for when the temperature rise value is not less than the second threshold, the temperature rise value and third threshold value, and described the
Three threshold values are more than the second threshold；
The control assembly is used to, when the temperature rise value is not less than the third threshold value, control the prompt component and send out overheat
Prompt.
4. control device according to claim 3, which is characterized in that the comparing component is used for not small in the temperature rise value
When the third threshold value, the temperature rise value and the 4th threshold value, the 4th threshold value are more than the third threshold value；
The control assembly is used to, when the temperature rise value is not less than four threshold value, control the welding equipment and stop weldering
It connects.
5. control device according to claim 4, which is characterized in that the control device further includes alarm assemblies；It is described
Control assembly is used to, when the temperature rise value is not less than four threshold value, control the alarm assemblies and send out alarm.
6. control device according to claim 1, which is characterized in that first rotating speed is zero.
7. according to claim 1-6 any one of them control devices, which is characterized in that the temperature rises detection components and includes：
First temperature sensitive member, the internal temperature for detecting the IGBT components；
Second temperature sensing element, the environment temperature for detecting the IGBT component externals；
Computing element, the difference for calculating the internal temperature and the environment temperature, to obtain the temperature rise value.
8. control device according to claim 7, which is characterized in that the IGBT components have in shell and the shell
Substrate, first temperature sensitive member is set on the substrate, and the second temperature sensing element is set to the shell
Outer surface.
9. control device according to claim 7, which is characterized in that first temperature sensitive member and/or the second temperature
It includes thermistor to spend sensing element.
10. a kind of welding equipment, including IGBT components and radiator fan, which is characterized in that the welding equipment further includes right
It is required that 1-9 any one of them control devices.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721761947.XU CN207840481U (en) | 2017-12-15 | 2017-12-15 | Welding equipment and its control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721761947.XU CN207840481U (en) | 2017-12-15 | 2017-12-15 | Welding equipment and its control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936073A (en) * | 2019-12-13 | 2020-03-31 | 唐山松下产业机器有限公司 | Welding equipment, monitoring method thereof and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936073A (en) * | 2019-12-13 | 2020-03-31 | 唐山松下产业机器有限公司 | Welding equipment, monitoring method thereof and electronic equipment |
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