CN210401558U - Temperature impact test device for crystal element - Google Patents
Temperature impact test device for crystal element Download PDFInfo
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- CN210401558U CN210401558U CN201921286743.4U CN201921286743U CN210401558U CN 210401558 U CN210401558 U CN 210401558U CN 201921286743 U CN201921286743 U CN 201921286743U CN 210401558 U CN210401558 U CN 210401558U
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Abstract
The utility model relates to a temperature shock test device for crystal element, including casing, high, low temperature chamber, electric control system, refrigerating system, hand-basket, elevating system, its technical essential is: the rear parts of the high-temperature chamber and the low-temperature chamber are respectively provided with a hot air circulating axial flow fan and a cold air circulating axial flow fan, the left side and the right side of the inner part of the high-temperature chamber are respectively provided with a left heating chamber and a right heating chamber which are communicated with an installation chamber of the hot air circulating axial flow fan, and the positions of the left heating chamber and the right heating chamber, which are close to the door side of the high-temperature chamber, are longitudinally provided; the left and right sides in the low-temperature chamber are respectively provided with a left cooling chamber and a right cooling chamber which are communicated with the mounting chamber of the cold air circulating axial flow fan, and cold air exhaust outlets are longitudinally arranged at the positions of the left and right cooling chambers, which are close to the door side of the low-temperature chamber. The device has simple structure and reliable use, ensures that the test temperature of the high-temperature chamber and the low-temperature chamber is rapid, uniform and constant, and is also suitable for product tests with power-on test requirements.
Description
Technical Field
The utility model relates to a high, low temperature impact test device, especially a temperature impact test device for crystal element is applicable to crystal resonator, crystal oscillator etc..
Background
The temperature impact test or the high-low temperature impact test is used for evaluating the adaptability of a product to the rapid change of ambient temperature, is an indispensable test in an identification test of equipment design and shaping and a routine test in a batch production stage, and can be used for an environmental stress screening test in some cases.
The temperature impact test device adopted at present is generally a high-low temperature impact test box, and is divided into a three-box type and a two-box type according to test requirements and test standards, wherein the difference lies in that the test mode and the internal structure are different. The three-box type cold storage chamber, the heat storage chamber and the test chamber are divided, and products are placed in the test chamber during testing. The two boxes are divided into a high-temperature chamber and a low-temperature chamber, the high temperature and the low temperature are switched by driving the lifting basket to move through the motor, and products are placed in the lifting basket and move along with the lifting basket. However, the conventional two-tank type high and low temperature impact device has the following problems:
1. when testing crystal elements, dozens of crystal element products in the same batch are usually put into a basket at the same time to realize batch synchronous testing, but no matter in a high-temperature chamber or a low-temperature chamber, the cost is saved, and the rapid uniformity of the temperature is particularly important, but the existing device has poor performance.
2. When testing the crystal element, some electric parameter index changes need to be tested by power-up, then the high-temperature chamber and the low-temperature chamber are in a closed state during testing, and the external power supply is very inconvenient.
Disclosure of Invention
The utility model aims at providing a solve a temperature shock test device for crystal element of above-mentioned problem, its simple structure, use reliably, guarantee that the test temperature of high temperature room, low temperature chamber is even and invariable fast, also is applicable to simultaneously and adds the product test of electric test demand.
The technical scheme of the utility model is that:
the utility model provides a temperature shock test device for crystal element, includes the casing, locate the casing front portion and upper and lower high, low temperature chamber that distributes, locate the electrical control system and the refrigerating system at casing rear portion, locate the basket in high, low temperature chamber, drive the elevating system of basket, its technical essential is: the rear parts of the high-temperature chamber and the low-temperature chamber are respectively provided with a hot air circulation axial flow fan and a cold air circulation axial flow fan, the axial leads of the hot air circulation axial flow fan and the cold air circulation axial flow fan are respectively parallel to a horizontal plane, a partition plate I with a plurality of air suction ports I uniformly distributed is arranged between the air suction side of the hot air circulation axial flow fan and the high-temperature chamber, the left side and the right side of the inner part of the high-temperature chamber are respectively provided with a left heating chamber and a right heating chamber communicated with an installation chamber of the hot air circulation axial flow fan, the positions of the left heating chamber and the right heating chamber, which are close to the door side of the high-temperature chamber, are longitudinally and; a partition plate II with a plurality of air suction ports II uniformly distributed is arranged between the air suction side of the cold air circulating axial flow fan and the low-temperature chamber, a left cooling chamber and a right cooling chamber communicated with the installation chamber of the cold air circulating axial flow fan are respectively arranged on the left side and the right side in the low-temperature chamber, a plurality of cold air exhaust ports are longitudinally and uniformly arranged at the positions of the left cooling chamber and the right cooling chamber close to the door side of the low-temperature chamber, and condensate tube bundles are respectively distributed in the left cooling chamber and the right cooling chamber and below the bottom plate of the low; and the side surface of the high-temperature chamber is provided with a power-on operation opening which sequentially penetrates through the left heating chamber and the shell, and the outer end of the power-on operation opening is fixedly provided with a sealing cover.
According to the temperature impact test device for the crystal element, the condensed water tank is arranged below the low-temperature chamber, and the position of the bottom plate of the low-temperature chamber, which is close to the door side of the low-temperature chamber, is transversely and uniformly provided with the plurality of condensed water leakage ports, so that the condensed water in the low-temperature chamber is conveniently introduced into the condensed water tank.
The temperature impact test device for the crystal element is characterized in that the lifting mechanism comprises a support arranged at the top of the machine shell, a gear rack transmission mechanism arranged on the support, a driving motor connected with the gear rack transmission mechanism, a vertical plate arranged on the side of the support, an upper proximity switch and a lower proximity switch arranged on the vertical plate, and a metal ring matched with the upper proximity switch and the lower proximity switch and arranged on the top of the rack, wherein the rack of the gear rack transmission mechanism is vertically arranged, and the lower end of the rack passes through the machine shell and the high-temperature chamber and then is fixedly connected with the top of the lifting basket.
The basket consists of a top plate, a bottom plate, four frame columns connected between the top plate and the bottom plate, and a product supporting plate connected to the middle parts of the four frame columns, wherein the inner vertical surfaces of the communicating ports of the high-temperature chamber and the low-temperature chamber are guide surfaces and are in contact with the four frame columns of the basket, sealing gaskets used for being in contact with the top plate and the bottom plate to realize the isolation of the high-temperature chamber and the low-temperature chamber are respectively arranged at the upper edge and the lower edge of the communicating ports, and vent hole matrixes are uniformly arranged on the product supporting plate.
In the temperature impact test device for the crystal element, the high-temperature chamber and the low-temperature chamber are respectively provided with a high-temperature chamber door and a low-temperature chamber door, and the high-temperature chamber door is provided with a visual window.
In the temperature impact test device for the crystal element, the power-on operation port is a circular pipe, one end of the circular pipe is communicated with the high-temperature chamber, and the other end of the circular pipe is fixedly connected with the outer side wall of the casing.
The utility model has the advantages that:
1. through setting up heated air circulation axial fan, cold wind circulation axial fan and with the left and right cooling chamber of both complex left and right heating chamber, form both sides inner loop wind route in high, low temperature chamber respectively, make the test temperature of high temperature room, low temperature chamber even and invariable fast, when guaranteeing the experimental demand, practice thrift the cost.
2. Because the power-on operation port is arranged, when a power-on test is needed, an external power supply is introduced through the port, and the power-on operation port is closed by using the sealing cover when not needed. The requirements of the power-up test of the crystal element are met, and the method is convenient and reliable.
Drawings
Fig. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention (the basket working area is located in the high-temperature chamber);
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is the schematic diagram of the internal structure of the present invention (the basket working area is located in the low temperature chamber).
In the figure: 1. the cold room door, the high room door, the hot room door, the sealing cover, the visual window, the operation interface, the casing, the power-on operation opening, the heating chamber, the basket, the top plate, the frame column, the product supporting plate, the ventilation hole matrix, the bottom plate, the gear and rack transmission mechanism, the driving motor, the heating chamber, the cooling chamber, the cold room, the cold air circulating axial flow fan, the cold air exhaust opening, the cold air pipe bundle, the condensate water leakage, the condensate water, 32. Condensate tank, 33, refrigeration system, 34, electrical control system, 35, left cooling chamber.
Detailed Description
As shown in fig. 1 to 4, the temperature impact testing apparatus for crystal elements includes a housing 6, high and low temperature chambers 9 and 15 disposed at the front of the housing 6 and distributed up and down, an electrical control system 34 and a refrigeration system 33 disposed at the rear of the housing 6, a basket 10 disposed in the high and low temperature chambers 9 and 15, and a lifting mechanism for driving the basket 10.
The rear parts of the high-temperature chamber 9 and the low-temperature chamber 15 are respectively provided with a hot air circulating axial flow fan 18 and a cold air circulating axial flow fan 16, and the axial leads of the hot air circulating axial flow fan 18 and the cold air circulating axial flow fan 16 are respectively parallel to the horizontal plane. Set up baffle I that evenly distributes a plurality of inlet scoop I19 between heated air circulation axial fan 18's the induced draft face side and high temperature chamber 9, the inside left and right both sides of high temperature chamber 9 are equipped with respectively with the left and right heating cavity 8, 13 of heated air circulation axial fan 18's installation room intercommunication, the position that left and right heating cavity 8, 13 are close to high temperature chamber door side vertically evenly is equipped with a plurality of hot-blast air outlets 25, and the interior symmetry of left and right heating cavity 8, 13 is equipped with heating resistance wire group 26 respectively. A partition plate II evenly provided with a plurality of air suction openings II 17 is arranged between the air suction side of the cold air circulating axial flow fan 16 and the low-temperature chamber 15, the left and right sides in the low-temperature chamber 15 are respectively provided with a left cooling chamber 35 and a right cooling chamber 14 communicated with the installation chamber of the cold air circulating axial flow fan 16, the positions of the left and right cooling chambers 35 and 14 close to the door side of the low-temperature chamber are longitudinally and evenly provided with a plurality of cold air exhaust openings 29, and condensate tube bundles 30 are respectively arranged in the left and right cooling chambers 35 and 14 and below the bottom plate of the low-temperature chamber 15. The inlet and outlet of the condensate tube bundle 30 are in communication with a refrigeration system 33. Temperature sensors are respectively arranged inside the left heating chamber 8, the right heating chamber 13, the left cooling chamber 35 and the right cooling chamber 14.
An electricity-adding operation opening 7 which sequentially penetrates through the left heating chamber 8 and the machine shell 6 is formed in the side face of the high-temperature chamber 9, and a sealing cover 3 is fixed at the outer end of the electricity-adding operation opening 7. The power-on operation port 7 is a circular tube, one end of the circular tube is communicated with the inside of the high-temperature chamber 9, and the other end of the circular tube is fixedly connected with the outer side wall of the machine shell 6.
In this embodiment, a condensed water tank 32 is disposed below the low temperature chamber 15, and a plurality of condensed water drainage holes 31 are transversely and uniformly disposed at a position on a bottom plate of the low temperature chamber 15 close to a door side of the low temperature chamber, so as to introduce condensed water in the low temperature chamber 15 into the condensed water tank 32.
The lifting mechanism is composed of a support 23 arranged at the top of the machine shell 6, a gear and rack transmission mechanism 11 arranged on the support 23, a driving motor 12 connected with the gear and rack transmission mechanism 11, a vertical plate 20 arranged on the side of the support 23, upper and lower proximity switches 21 and 24 arranged on the vertical plate 20, and a metal ring 22 arranged at the top end of the rack and matched with the upper and lower proximity switches, wherein the rack of the gear and rack transmission mechanism 11 is vertically arranged, and the lower end of the rack passes through the machine shell 6 and the high-temperature chamber 9 and then is connected and fixed with the top of the lifting basket 10.
The lifting basket 10 is composed of a top plate 1001, a bottom plate 1004, four frame columns 1002 connected between the top plate 1001 and the bottom plate 1004, and a product supporting plate 1003 connected to the middle parts of the four frame columns 1002, the inner vertical surfaces of the communication ports 28 of the high and low temperature chambers 9 and 15 are guide surfaces and are in contact with the four frame columns 1002 of the lifting basket 10, sealing gaskets 27 used for being in contact with the top plate 1001 and the bottom plate 1004 to realize the isolation of the high and low temperature chambers are respectively arranged at the upper edge and the lower edge of the communication ports 28, and vent hole matrixes 1003a are uniformly arranged on the product supporting plate 1003.
High, low temperature room 9, 15 are equipped with high, low temperature room door 2, 1 respectively, be equipped with visual window 4 on the high temperature room door 2. The outer side of the casing 6 is provided with an operation interface 5 connected with an electric control system 34.
When the electric heating device is used, referring to fig. 2 and 3, the resistance wire group 26 for electric heating is supplied to heat the resistance wire group to form a heat source, then the hot air circulating axial flow fan 18 is started, the air suction side of the hot air circulating axial flow fan 18 sucks the air in the high-temperature chamber 9 into the left heating chamber 8 and the right heating chamber 13 side by side, the air passing through the left heating chamber 8 and the right heating chamber 13 is heated by the resistance wire group 26 for heating, finally the air is discharged into the high-temperature chamber 8 from the front parts of the two sides of the high-temperature chamber 9 through the hot air exhaust port 25 and is gathered to flow to the hot air circulating axial flow fan 18, so that hot air circulation is.
Before a product test is to be completed in the high-temperature chamber 9, the refrigerating system 33 is started to absorb heat of the condensate tube bundle 30 to form a cold source, then the cold air circulating axial flow fan 16 is started, the air suction side of the cold air circulating axial flow fan 16 sucks air in the low-temperature chamber 15 to the left and right cooling chambers 35 and 14 side by side, the air passing through the left and right cooling chambers 35 and 14 is cooled by the condensate tube bundle 30, and finally the air is discharged into the low-temperature chamber 15 from the front parts of the two sides of the low-temperature chamber 15 through the cold air exhaust port 29 and is gathered to flow to the cold air circulating axial flow fan 16, so that cold air circulation is formed, and.
Referring to fig. 4, the driving motor 12 is started, the rack of the rack and pinion transmission mechanism 11 descends until the working area of the basket 10 reaches the low-temperature chamber, and the high-temperature and low-temperature impact test of the product is completed.
The indoor temperature of the high-temperature chamber can reach 185 ℃, and the indoor temperature of the low-temperature chamber can reach-55 ℃.
Claims (6)
1. The utility model provides a temperature shock test device for crystal element, includes the casing, locate the casing front portion and upper and lower high, low temperature chamber that distributes, locate electric control system and refrigerating system at casing rear portion, locate the basket in high, low temperature chamber, drive the elevating system of basket, its characterized in that: the rear parts of the high-temperature chamber and the low-temperature chamber are respectively provided with a hot air circulation axial flow fan and a cold air circulation axial flow fan, the axial leads of the hot air circulation axial flow fan and the cold air circulation axial flow fan are respectively parallel to a horizontal plane, a partition plate I with a plurality of air suction ports I uniformly distributed is arranged between the air suction side of the hot air circulation axial flow fan and the high-temperature chamber, the left side and the right side of the inner part of the high-temperature chamber are respectively provided with a left heating chamber and a right heating chamber communicated with an installation chamber of the hot air circulation axial flow fan, the positions of the left heating chamber and the right heating chamber, which are close to the door side of the high-temperature chamber, are longitudinally and; a partition plate II with a plurality of air suction ports II uniformly distributed is arranged between the air suction side of the cold air circulating axial flow fan and the low-temperature chamber, a left cooling chamber and a right cooling chamber communicated with the installation chamber of the cold air circulating axial flow fan are respectively arranged on the left side and the right side in the low-temperature chamber, a plurality of cold air exhaust ports are longitudinally and uniformly arranged at the positions of the left cooling chamber and the right cooling chamber close to the door side of the low-temperature chamber, and condensate tube bundles are respectively distributed in the left cooling chamber and the right cooling chamber and below the bottom plate of the low; and the side surface of the high-temperature chamber is provided with a power-on operation opening which sequentially penetrates through the left heating chamber and the shell, and the outer end of the power-on operation opening is fixedly provided with a sealing cover.
2. The temperature shock test apparatus for crystal element according to claim 1, wherein: and a condensate water tank is arranged below the low-temperature chamber, and a plurality of condensate water leakage openings are transversely and uniformly formed in the position, close to the side of the low-temperature chamber door, of the bottom plate of the low-temperature chamber.
3. The temperature shock test apparatus for crystal element according to claim 1, wherein: the lifting mechanism comprises a support arranged at the top of the machine shell, a gear rack transmission mechanism arranged on the support, a driving motor connected with the gear rack transmission mechanism, a vertical plate arranged on the side of the support, upper and lower proximity switches arranged on the vertical plate, and a metal ring arranged on the top of the rack and matched with the upper and lower proximity switches, wherein the rack of the gear rack transmission mechanism is vertically arranged, and the lower end of the rack passes through the machine shell and the high-temperature chamber and then is fixedly connected with the top of the lifting basket.
4. The temperature shock test apparatus for crystal element according to claim 1, wherein: the hand-basket comprises roof, bottom plate, connect four frame posts between roof and bottom plate, connect in the product supporting disk at four frame post middle parts, the interior facade of intercommunication mouth of high, low temperature room be the spigot surface and with the contact of four frame posts of hand-basket, the upper and lower punishment of punishment along do not being equipped with and be used for realizing the seal ring of high, low temperature room isolation with roof and bottom plate contact, evenly arranged the venthole matrix on the product supporting disk.
5. The temperature shock test apparatus for crystal element according to claim 1, wherein: the high-temperature chamber and the low-temperature chamber are respectively provided with a high-temperature chamber door and a low-temperature chamber door, and the high-temperature chamber door is provided with a visual window.
6. The temperature shock test apparatus for crystal element according to claim 1, wherein: the power-on operation port is a circular pipe, one end of the circular pipe is communicated with the high-temperature chamber, and the other end of the circular pipe is fixedly connected with the outer side wall of the machine shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286743.4U CN210401558U (en) | 2019-08-09 | 2019-08-09 | Temperature impact test device for crystal element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286743.4U CN210401558U (en) | 2019-08-09 | 2019-08-09 | Temperature impact test device for crystal element |
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| Publication Number | Publication Date |
|---|---|
| CN210401558U true CN210401558U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921286743.4U Active CN210401558U (en) | 2019-08-09 | 2019-08-09 | Temperature impact test device for crystal element |
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| CN (1) | CN210401558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295912A (en) * | 2021-12-29 | 2022-04-08 | 惠州城市职业学院(惠州商贸旅游高级职业技术学校) | Cold and hot impact rapid test detection device for automobile electronic element |
-
2019
- 2019-08-09 CN CN201921286743.4U patent/CN210401558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295912A (en) * | 2021-12-29 | 2022-04-08 | 惠州城市职业学院(惠州商贸旅游高级职业技术学校) | Cold and hot impact rapid test detection device for automobile electronic element |
| CN114295912B (en) * | 2021-12-29 | 2023-08-08 | 惠州城市职业学院(惠州商贸旅游高级职业技术学校) | Cold and hot impact rapid test detection device for automobile electronic component |
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