CN207036747U - Insulating box for material electric parameters testing - Google Patents
Insulating box for material electric parameters testing Download PDFInfo
- Publication number
- CN207036747U CN207036747U CN201720845129.1U CN201720845129U CN207036747U CN 207036747 U CN207036747 U CN 207036747U CN 201720845129 U CN201720845129 U CN 201720845129U CN 207036747 U CN207036747 U CN 207036747U
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- CN
- China
- Prior art keywords
- insulating box
- sample test
- liquid nitrogen
- chamber
- electric parameters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses the insulating box for material electric parameters testing, including casing, include liquid nitrogen chamber and sample test chamber in the casing, connected between the liquid nitrogen chamber and sample test chamber by valve, the sample test intracavitary is additionally provided with heating wire.The liquid nitrogen provided outside casing loads liquid nitrogen intracavitary and stored in fluid form, only need to open valve during use, transient evaporation is changed into gas after liquid nitrogen enters sample test chamber, substantial amounts of heat is absorbed because the liquid of nitrogen is changed into gaseous state, low temperature environment can be formed in sample test intracavitary, the heating wire that can also concurrently or separately start sample test intracavitary is heated, electric parameters testing is carried out to material to form certain temperature environment, controllable wide temperature range environment thus can be provided for test material unit for electrical property parameters, realization is investigated to the electrical parameter situation of change of material at low ambient temperatures or in wide temperature range.
Description
Technical field
It the utility model is related to a kind of electronic equipment, and in particular to the insulating box for material electric parameters testing.
Background technology
Insulating box, it is usually used in testing and determines electrician, after electronics and other products and material progress temperature environment change
Parameter and performance test.Traditional material electric parameters testing thermostat, hot water heating (water heated), the big portion of experiment can be passed through
It is divided into electrothermal, is the chest or cabinet that heat-insulating material is housed on a kind of outer wall equipped with electric heater and thermoregulator.It is existing
Insulating box for material electric parameters testing can reach higher test temperature, but can test frequently with electrically heated mode
Temperature range is narrower, the electrical parameter situation of change of material can not be examined at low ambient temperatures or in wide temperature range
Examine.
Utility model content
Technical problem to be solved in the utility model is due to that the Range of measuring temp of existing electrical heating insulating box is narrower,
The electrical parameter situation of change of material can not be investigated at low ambient temperatures or in wide temperature range, and it is an object of the present invention to provide
Can be test material by way of nitrogen refrigeration and electric-heating-wire-heating share for the insulating box of material electric parameters testing
Unit for electrical property parameters provides controllable wide temperature range environment, realizes at low ambient temperatures or in wide temperature range to material
Electrical parameter situation of change is investigated.
The utility model is achieved through the following technical solutions：
Include for the insulating box of material electric parameters testing, including casing and control panel, in the casing liquid nitrogen chamber and
Sample test chamber, connected between the liquid nitrogen chamber and sample test chamber by valve, the sample test intracavitary is additionally provided with electric heating
Silk.
Two chambers being set by will separate in thermostatic box, being respectively used to load liquid nitrogen and place sample to be tested；
The liquid nitrogen provided outside casing loads liquid nitrogen intracavitary and stored in fluid form, only needs to open valve during use, liquid nitrogen enters
Transient evaporation is changed into gas after sample test chamber, absorbs substantial amounts of heat because the liquid of nitrogen is changed into gaseous state, can be in sample test chamber
Interior formation low temperature environment, the heating wire that can also concurrently or separately start sample test intracavitary are heated, to form certain temperature
Spend environment and electric parameters testing is carried out to material, thus controllable wide temperature range ring can be provided for test material unit for electrical property parameters
Border, realization are investigated to the electrical parameter situation of change of material at low ambient temperatures or in wide temperature range.
Preferably, the liquid nitrogen chamber injects the mouth of pipe and ft connection by liquid nitrogen；The sample test chamber is provided with nitrogen
Air outlet valve and ft connection.
The liquid nitrogen provided outside casing is also beneficial to ensure liquid nitrogen intracavitary liquid nitrogen through liquid nitrogen injection mouth of pipe injection liquid nitrogen intracavitary
Sustainable supply；Liquid nitrogen excludes after valve enters the gasification of sample test chamber through nitrogen air outlet valve, can be by adjusting nitrogen air outlet valve
Control the low temperature environment of sample test intracavitary with valve, valve allows to circulate, and flow is bigger, nitrogen air outlet valve allows circulation
Smaller, then sample test cavity temperature is lower, and valve permission circulation is smaller, nitrogen air outlet valve allows circulation bigger, then sample
Product test cavity temperature is higher.
Preferably, the sample test intracavitary is additionally provided with temperature sensor.
By setting temperature sensor to be used for the temperature for monitoring sample test intracavitary in real time in sample test intracavitary, and by temperature
Degree information transmission to insulating box control panel or remote control terminal is shown, is easy to staff accurately to monitor in insulating box
Test environment temperature.
Preferably, the temperature sensor uses PT100 temperature sensors.
PT100 temperature sensors are a kind of made of a kind of characteristic that resistance using metal changes with the change of temperature
Temperature sensor, the transmitter of belt sensor are generally made up of two parts：Sensor and signal adapter, automated beneficial to realizing
Remote control.
Preferably, the sample test intracavitary is provided with pallet, and the pallet is provided with two electrodes of positive pole and negative pole, described
It is used to fold up test sample among positive pole and negative electrode, and the control panel of insulating box is provided with electrode interface for outside accessing
Portion's electrical performance parameter test instrument；Also include electrode connecting line, described electrode connecting line one end is connected with electrode, the other end and insulating box
The electrode interface connection of control panel.
In use, between test sample to be folded up to positive and negative two electrode on pallet first, while electrode interface is provided, and
It is connected to by electrode special line at the electrode interface on the control panel outside casing, for accessing external electrical performance parameter test
Instrument.
Preferably, USB interface and LAN interface are additionally provided with the control panel of the insulating box, for accessing remote control
Device.
Existing insulating box is mainly made up of temperature control system and casing two parts, and temperature control system is included located at the outer front end of casing
Control panel, the utility model are further advantageously implemented long-range by accessing USB interface and LAN interface on the control panel
Automate management and control.
Preferably, the constant temperature chamber interior wall is made up of refractory material, and the temperature range that can be born is -200 DEG C~500 DEG C.
Constant temperature chamber interior wall realizes the test in -200 DEG C~500 DEG C temperature ranges using conventional refractory material.
Preferably, the pallet includes disk body and two fix bars, offers chute on the disk body, the fix bar with
The card of disk body is vertical and insertion chute interior edge chute is distributed；Be additionally provided with spring in the chute, the direction of axis line of spring with
Chute stretching, extension center line is overlapped, and one end of the spring is fixed in the side wall of chute, the fix bar of the other end and insertion chute
Connection；Positive pole and negative electrode are correspondingly arranged in the fix bar.
Realize that two positive and negative electrode spacing are adjustable by disk body, chute, spring and fix bar, be easy to different size of test
Sample, which folds up, to be fixed in fix bar between corresponding two electrodes.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model is used for the insulating box of material electric parameters testing, and two chambers are set by will separate in thermostatic box
Room, it is respectively used to load liquid nitrogen and place sample to be tested；The liquid nitrogen provided outside casing loads liquid nitrogen intracavitary with liquid
Form stores, and only needs during use to open valve, transient evaporation is changed into gas after liquid nitrogen enters sample test chamber, due to the liquid of nitrogen
State is changed into gaseous state and absorbs substantial amounts of heat, can form low temperature environment in sample test intracavitary, can also concurrently or separately start sample survey
The heating wire of examination intracavitary is heated, and electric parameters testing is carried out to material to form certain temperature environment, thus can be test
Material unit for electrical property parameters provides controllable wide temperature range environment, realizes at low ambient temperatures or in wide temperature range to material
The electrical parameter situation of change of material is investigated；
2nd, the utility model is used for the insulating box of material electric parameters testing, and the liquid nitrogen provided outside casing is through liquid nitrogen ascending pipe
Mouth injection liquid nitrogen intracavitary, is also beneficial to ensure liquid nitrogen intracavitary liquid nitrogen sustainable supply；Liquid nitrogen gasifies through valve into sample test chamber
Excluded by nitrogen air outlet valve, the low temperature environment of sample test intracavitary, valve can be controlled by adjusting nitrogen air outlet valve and valve
Door allows to circulate, and flow is bigger, nitrogen air outlet valve allows that circulation is smaller, then sample test cavity temperature is lower, and valve allows to flow
Flux is smaller, nitrogen air outlet valve permission circulation is bigger, then sample test cavity temperature is higher；
3rd, the utility model is used for the insulating box of material electric parameters testing, by setting TEMP in sample test intracavitary
Device is used for the temperature for monitoring sample test intracavitary in real time, and temperature information is sent into insulating box control panel or remote control end
End is shown, is easy to staff accurately to monitor test environment temperature in insulating box；
4th, the utility model is used for the insulating box of material electric parameters testing, and support is clipped in use, first putting test sample
Between positive and negative two electrode on disk, it is connected at the electrode interface on the control panel outside casing, is supplied by electrode special line
Access exposed electrical energy parameter testing instrument；
5th, the utility model is used for the insulating box of material electric parameters testing, is realized by disk body, chute, spring and fix bar
Two positive and negative electrode spacing are adjustable, be easy to fold up different size of test sample be fixed in fix bar corresponding to two electrodes it
Between.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is that the new insulating box of this practicality faces cross section structure schematic diagram；
Fig. 2 is the utility model tray structure diagram.
Mark and corresponding parts title in accompanying drawing：1- casings, 2- liquid nitrogen chambers, 3- sample test chambers, 4- valves, 5- electricity
Heated filament, the 6- liquid nitrogen injection mouth of pipe, 7- nitrogen air outlet valves, 8- temperature sensors, 9- pallets, 10- electrodes, 11- disk bodies, 12- are fixed
Bar, 13- springs, 14- electrode connecting lines, 15- supports, 16- test samples.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1
As shown in figure 1, the utility model provides a kind of insulating box for material electric parameters testing, including the He of casing 1
Control panel, the casing 1 is interior to be divided into two chambers, respectively liquid nitrogen chamber 2 and sample test chamber 3 by dividing plate, in dividing plate
On be communicated with the mouth of pipe, valve 4 is set on the mouth of pipe, connected between liquid nitrogen chamber 2 and sample test chamber 3 by valve 4.Surveyed in sample
High power electrothermal silk 5 is additionally provided with examination chamber 3.
Embodiment 2
Further improved on the basis of embodiment 1, the liquid nitrogen chamber 2 injects the mouth of pipe 6 and ft connection by liquid nitrogen；Institute
State sample test chamber 3 and be provided with nitrogen air outlet valve 7 and ft connection.
Embodiment 3
Further improved on the basis of embodiment 2, temperature sensor 8 is additionally provided with the sample test chamber 3, used
PT100 temperature sensors.
Embodiment 4
Further improved on the basis of embodiment 3, the constant temperature chamber interior wall is made up of refractory material, the temperature that can be born
Scope is -200 DEG C~500 DEG C.Pallet 9 is provided with sample test chamber 3, the pallet 9 is provided with two electrodes of positive pole and negative pole
10, positive pole and the negative electrode centre is used to fold up test sample, and the control panel of insulating box is used provided with electrode interface
In access exposed electrical energy parameter testing instrument；Also include electrode connecting line, described electrode connecting line one end is connected with electrode 10, another
End is connected with the electrode interface of insulating box control panel.USB interface and LAN interface are additionally provided with the control panel of insulating box, is used
In access remote control.
Embodiment 5
Further improved on the basis of embodiment 4, the pallet 9 includes disk body 11 and two fix bars 12, the disk
Chute is offered on body 11, the fix bar 12 is vertical with the card of disk body 11 and insertion chute interior edge chute is distributed；The cunning
Spring 13 is additionally provided with groove, the direction of axis line of spring 13 is overlapped with chute stretching, extension center line, and one end of the spring 13 is fixed
In the side wall of chute, the other end is connected with inserting the fix bar 12 of chute；Positive pole is correspondingly arranged in the fix bar 12 and is born
Pole electrode.
It is clipped in before use, first putting test sample on pallet between two electrodes, the valve for connecting the mouth of pipe and nitrogen is gone out
Air valve is closed, and then injects liquid nitrogen toward liquid nitrogen intracavitary, and external testing instrument is connected.When starting test, pass through insulating box
Control panel button design temperature condition, open nitrogen air outlet valve, start to test, can be achieved -200 DEG C~500 DEG C within temperature
The change of degree.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (8)
1. for the insulating box of material electric parameters testing, including casing (1) and control panel, it is characterised in that the casing (1)
It is interior to pass through valve (4) including liquid nitrogen chamber (2) and sample test chamber (3), between the liquid nitrogen chamber (2) and sample test chamber (3) even
It is logical, it is additionally provided with heating wire (5) in the sample test chamber (3).
2. the insulating box according to claim 1 for material electric parameters testing, it is characterised in that the liquid nitrogen chamber (2)
The mouth of pipe (6) and ft connection are injected by liquid nitrogen；The sample test chamber (3) is provided with nitrogen air outlet valve (7) and ft connection.
3. the insulating box according to claim 1 for material electric parameters testing, it is characterised in that the sample test chamber
(3) temperature sensor (8) is additionally provided with.
4. the insulating box according to claim 3 for material electric parameters testing, it is characterised in that the temperature sensor
(8) PT100 temperature sensors are used.
5. the insulating box according to claim 1 for material electric parameters testing, it is characterised in that the sample test chamber
(3) it is provided with pallet (9) in, the pallet (9) is provided with two electrodes (10) of positive pole and negative pole, in the positive pole and negative electrode
Between be used to fold up test sample, and the control panel of insulating box is provided with electrode interface and is used to access external electrical performance parameter test
Instrument；Also include electrode connecting line, described electrode connecting line one end is connected with electrode (10), the electricity of the other end and insulating box control panel
Pole interface connection.
6. the insulating box according to claim 5 for material electric parameters testing, it is characterised in that the control of the insulating box
USB interface and LAN interface are additionally provided with panel processed, for accessing remote control.
7. the insulating box according to claim 1 for material electric parameters testing, it is characterised in that the constant temperature chamber interior wall
It is made up of refractory material, the temperature range that can be born is -200 DEG C~500 DEG C.
8. the insulating box according to claim 5 for material electric parameters testing, it is characterised in that pallet (9) bag
Disk body (11) and two fix bars (12) are included, chute, the fix bar (12) and disk body (11) are offered on the disk body (11)
Card is vertical and the chute distribution of insertion chute interior edge；Spring (13), the axial line side of spring (13) are additionally provided with the chute
Overlapped to chute stretching, extension center line, one end of the spring (13) is fixed in the side wall of chute, the other end and insertion chute
Fix bar (12) connection；Positive pole and negative electrode are correspondingly arranged on the fix bar (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845129.1U CN207036747U (en) | 2017-07-12 | 2017-07-12 | Insulating box for material electric parameters testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845129.1U CN207036747U (en) | 2017-07-12 | 2017-07-12 | Insulating box for material electric parameters testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207036747U true CN207036747U (en) | 2018-02-23 |
Family
ID=61464146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720845129.1U Expired - Fee Related CN207036747U (en) | 2017-07-12 | 2017-07-12 | Insulating box for material electric parameters testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207036747U (en) |
-
2017
- 2017-07-12 CN CN201720845129.1U patent/CN207036747U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20190712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |