CN206648685U

CN206648685U - A kind of heating cushion combined test stand

Info

Publication number: CN206648685U
Application number: CN201720320327.6U
Authority: CN
Inventors: 方正; 梅园
Original assignee: WUHAN ZHONGCHUANG RONGKE TECHNOLOGY Co Ltd
Current assignee: WUHAN ZHONGCHUANG RONGKE TECHNOLOGY Co Ltd
Priority date: 2017-03-29
Filing date: 2017-03-29
Publication date: 2017-11-17
Anticipated expiration: 2027-03-29

Abstract

The utility model discloses a kind of heating cushion combined test stand, including rack and test suite, test suite to include：Energy supply control module, it includes three phase mains, multiple relays and relay controller；Multiple voltage/current detection modules, each voltage/current detection module include exchange transmitter, current transformer, board；Temperature collect module, it includes thermocouple temperature sensor, thermal resistance temperature sensor, converting unit；Insulation test module；And controller, board, converting unit and Insulation test module are connected with controller.On the one hand the utility model is detected as the electric current and voltage of the three phase mains of heating cushion power supply, on the other hand temperature detection is carried out by thermocouple temperature sensor and thermal resistance temperature sensor respectively, it is advantageous to the accuracy for improving detection, and can be contrasted by the electric current and voltage change of power supply and the temperature change of heating cushion, high temperature failure or scald human body are caused to avoid heating pad temperature too high.

Description

A kind of heating cushion combined test stand

Technical field

Heating cushion measuring technology is the utility model is related to, more particularly, to a kind of heating cushion combined test stand.

Background technology

Heating cushion is medium and high classes automobile standard configuration product, and properties of product are directly related to automobile inherently safe, if heating cushion is protected Shield improper measures continuous high temperature can cause to burn seat or vehicle, if heating cushion wiring is uneven, Rig up error also results in burning Ruin seat or vehicle, and heating cushion temperature control is bad to cause passenger to scald in vehicle traveling.The major automobile primary in China The performance of automobile seat heating cushion is included in one of project that the new car model development stage must examine by machine factory, and with China's vapour The rapid development of turner industry, heating cushion security receive the extensive concern of professional and various circles of society.

But when being detected at present to heating cushion, typically only the temperature under heating cushion heated condition is detected, Its accuracy of detection is low, accuracy is poor.

Utility model content

The purpose of this utility model is to overcome above-mentioned technical deficiency, proposes a kind of heating cushion combined test stand, solve existing Have in technology that heating cushion accuracy of detection is low, the poor technical problem of accuracy.

To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of heating cushion combined test stand, including Rack and the test suite for being built in the rack, the test suite include：

Energy supply control module, it includes being used for the three phase mains of heating cushion power supply, added located at the three phase mains with multiple Multiple relays between heat pad interface and the relay controller for controlling multiple relay switches respectively, heating cushion and relay Device, which corresponds, to be set；

With relay multiple voltage/current detection modules correspondingly, each voltage/current detection module include with The exchange transmitter of the output end connection of the relay, is respectively arranged between relay and the input for exchanging transmitter Three current transformers on first phase electricity, two phase electricity, third phase electricity, and for detecting current transformer and exchanging transmitter Magnitude of voltage board；

Temperature collect module, it includes being used for thermocouple temperature sensor and the resistance and temperature sensing for gathering heating cushion Device and turn for the voltage signal of thermocouple temperature sensor and thermal resistance temperature sensor collection to be converted to temperature signal Change unit；

Insulation test module, its insulaion resistance for being used to detect heating cushion and resistance to piezoresistance；And

Controller, the board, converting unit and Insulation test module are connected with the controller.

Preferably, the converting unit includes the first converting unit of setting corresponding with the thermocouple temperature sensor And the second converting unit of setting corresponding with the thermal resistance temperature sensor.

Preferably, the rack includes cabinet and the roller located at the bottom of cabinet bulk.

Preferably, the model NI PXI-6515 of the controller.

Preferably, the model NI PXIe-4353 of first converting unit, the model of second converting unit NI PXIe-4357。

Preferably, the model PXIe-4300 of the board.

Preferably, the Insulation test module is Electric Security Tester.

Compared with prior art, on the one hand the utility model is detected as the electric current and electricity of the three phase mains of heating cushion power supply Pressure, on the other hand carries out temperature detection, it is advantageous to carry respectively by thermocouple temperature sensor and thermal resistance temperature sensor The accuracy of high detection, and can be contrasted by the electric current and voltage change of power supply and the temperature change of heating cushion, with Avoid heating pad temperature too high and cause high temperature failure or scald human body.

Brief description of the drawings

Fig. 1 is the structural representation of heating cushion combined test stand of the present utility model；

Fig. 2 is the electric connection structure schematic diagram of test suite of the present utility model.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining The utility model, it is not used to limit the utility model.

As shown in Figure 1 and Figure 2, embodiment of the present utility model provides a kind of heating cushion combined test stand, including rack 1 And the test suite 2 of the rack 1 is built in, the test suite 2 includes：

Energy supply control module 21, it includes the three phase mains 211 for heating cushion power supply, located at the three phase mains 211 Multiple relays 212 between multiple heating cushion interfaces and the relay control for controlling multiple relays 212 to switch respectively Device 213, heating cushion 3 and relay 212, which correspond, to be set；

With the multiple voltage/current detection modules 22 correspondingly of relay 212, each voltage/current detection module 22 Include the exchange transmitter 221 being connected with the output end of the relay 212, be respectively arranged at relay 212 and become with exchanging The first phase electricity between the input of device 221, three current transformers 222 on two phase electricity, third phase electricity are sent, and for examining Survey board 223 of the current transformer 222 with the magnitude of voltage that exchanges transmitter 221；

Temperature collect module 23, it includes being used for the thermocouple temperature sensor 231 and resistance and temperature for gathering heating cushion 3 Sensor 232 and the conversion of the voltage signal for thermocouple temperature sensor 231 and thermal resistance temperature sensor 232 to be gathered For the converting unit 233 of temperature signal；

Insulation test module 24, its insulaion resistance for being used to detect heating cushion 3 and resistance to piezoresistance；And

Controller 25, the board 223, converting unit 233 and Insulation test module 24 are connected with the controller 25.

During specific test, multiple heating cushion interfaces can be connected with multiple heating cushions 3, and controlled and heated by relay 212 Pad 3 it is open close to control the heat time, specifically can be by relay controller 213 come the open close every to control of control relay 212 The heat time of individual heating cushion 3, and trip temperature is entered by thermocouple temperature sensor 231 and thermal resistance temperature sensor 232 and adopted Collect and form voltage signal, voltage signal is then converted into by temperature value by converting unit 233, so as to for contrasting in difference The temperature difference opposite sex of heating cushion 3 under heat time, the temperature of heating cushion 3 is too high during avoiding the heat time long；Wherein, due to The sensitivity of thermocouple temperature sensor 231 and thermal resistance temperature sensor 232 in different range is different, therefore the present embodiment is adopted It is acquired respectively with thermocouple temperature sensor 231 and thermal resistance temperature sensor 232, and formed according to conversion after collection The scope that temperature signal is located at carries out value, i.e., when the temperature of collection is located at the preferable sensitivity of thermocouple temperature sensor 231 During scope, then using the temperature signal of the detection of thermocouple temperature sensor 231, otherwise examined using thermal resistance temperature sensor 232 The temperature signal of survey.

And for convenience of description, the present embodiment only with three relays 212 and carries out test to three heating cushions 3 and said It is bright, but it is only one embodiment of the present utility model, it is not can root to limitation of the present utility model, the utility model According to needing to set several relays 212 and several heating cushions 3 tested.

Moreover, the present embodiment detect heating cushion 3 temperature while, also detect three phase mains 211 current signal and Voltage signal, specifically, the current value of each phase electricity of three phase mains 211 is respectively converted into by it by current transformer 222 The magnitude of voltage that board 223 can measure, and can be with by exchanging that transmitter 221 is converted to the alternating voltage of three phase mains 211 The DC voltage value of measurement, and tested out by board 223, so as to obtain the current value of three phase mains 211 and magnitude of voltage, its It can be contrasted by the temperature of current value and magnitude of voltage and heating cushion 3, in order to match more suitable power supply, so as to The electric current of three characteristics of the middle term power supply 211 and/or overtension is avoided to cause heter temperature too high.

Converting unit 233 described in the present embodiment includes first with the 231 corresponding setting of thermocouple temperature sensor Converting unit 233a and the second converting unit 233b with the 232 corresponding setting of thermal resistance temperature sensor, wherein, it is described First converting unit 233a model NI PXIe-4353, it will be electric caused by the collecting temperature of thermocouple temperature sensor 231 Pressure value is converted into temperature value, and the model NI PXIe-4357 of the second converting unit 233b, it can pass resistance and temperature Magnitude of voltage caused by the detection temperature of sensor 232 is converted into temperature value.

And in order to improve the accuracy of test and detection, controller 25 is preferably arranged to model described in the present embodiment NIPXI-6515, the model of the board 223 are preferably arranged to PXIe-4300.And the Insulation test module 24 is preferably to pacify Advise tester, and preferably model GPT-9800serial.

Packaged type test, machine described in the present embodiment can be carried out for the ease of the combined test stand of the present embodiment heating cushion 3 Cabinet 1 includes cabinet 11 and the roller 12 located at the bottom of cabinet 11, and it can move cabinet 11 to adapt to difference by roller 12 Position.

Compared with prior art, the utility model on the one hand be detected as heating cushion 3 power supply three phase mains 211 electric current and Voltage, temperature detection is on the other hand carried out by thermocouple temperature sensor 231 and thermal resistance temperature sensor 232 respectively, its Be advantageous to improve the accuracy of detection, and can be entered by the electric current and voltage change and the temperature change of heating cushion 3 of power supply Row contrast, high temperature failure or scald human body are caused to avoid the temperature of heating cushion 3 too high.

Specific embodiment of the present utility model described above, the restriction to scope of protection of the utility model is not formed. Any various other corresponding changes and deformation made according to technical concept of the present utility model, should be included in this practicality In new scope of the claims.

Claims

A kind of 1. heating cushion combined test stand, it is characterised in that including rack and the test suite of the rack is built in, it is described Test suite includes：

Energy supply control module, it includes the three phase mains for heating cushion power supply, located at the three phase mains and multiple heating cushions Multiple relays between interface and the relay controller for controlling multiple relay switches respectively, heating cushion and relay one One is correspondingly arranged；

With relay multiple voltage/current detection modules correspondingly, each voltage/current detection module include with it is described The exchange transmitter of the output end connection of relay, first be respectively arranged between relay and the input for exchanging transmitter Three current transformers on phase electricity, two phase electricity, third phase electricity, and the electricity for detecting current transformer with exchanging transmitter The board of pressure value；

Temperature collect module, it include be used for gather heating cushion thermocouple temperature sensor and thermal resistance temperature sensor and For the voltage signal of thermocouple temperature sensor and thermal resistance temperature sensor collection to be converted to the conversion list of temperature signal Member；

Insulation test module, its insulaion resistance for being used to detect heating cushion and resistance to piezoresistance；And

Controller, the board, converting unit and Insulation test module are connected with the controller.
2. heating cushion combined test stand according to claim 1, it is characterised in that the converting unit includes and the heat First converting unit of the corresponding setting of galvanic couple temperature sensor and the of setting corresponding with the thermal resistance temperature sensor Two converting units.
3. heating cushion combined test stand according to claim 2, it is characterised in that the rack includes cabinet and located at institute State the roller of bottom of cabinet bulk.
4. the heating cushion combined test stand according to Claims 2 or 3, it is characterised in that the model NI of the controller PXI-6515。
5. heating cushion combined test stand according to claim 4, it is characterised in that the model of first converting unit NI PXIe-4353, the model NI PXIe-4357 of second converting unit.
6. heating cushion combined test stand according to claim 1, it is characterised in that the model PXIe- of the board 4300。
7. heating cushion combined test stand according to claim 1, it is characterised in that the Insulation test module is surveyed for safety Try instrument.