阅读说明：本技术 一种高低温试验箱 (High-low temperature test box ) 是由 张从举 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种高低温试验箱,包括底板,所述底板的顶部外壁焊接有柜体,且柜体的一侧外壁设有配电柜,所述配电柜的顶端外壁设有控制面板和显示屏,所述柜体远离配电柜的一侧设有一组等距离分布的测试孔,所述柜体的内壁设有工作室,且工作室的内壁铺设有保温棉,所述工作室的内壁中部通过螺栓固定有挂架,且挂架的外壁卡接有试品架。本发明的设计更合理、实用,既能快速升温提供高温试验环境,又能快速制冷提供低温试验环境,而且控制面板功能简洁明了,易操作,可与外部计算机设备互动,通过环绕式温度变化,使内部的温度变化统一,在内部保温棉中穿插温度变化的元件,减少温度上下分层,进而造成温度差影响实验结果。(The invention discloses a high-low temperature test box which comprises a bottom plate, wherein a cabinet body is welded on the outer wall of the top of the bottom plate, a power distribution cabinet is arranged on the outer wall of one side of the cabinet body, a control panel and a display screen are arranged on the outer wall of the top end of the power distribution cabinet, a group of test holes which are distributed equidistantly are arranged on one side, away from the power distribution cabinet, of the cabinet body, a working chamber is arranged on the inner wall of the cabinet body, heat insulation cotton is laid on the inner wall of the working chamber, a hanging frame is fixed in the middle of the inner wall of the working chamber through. The temperature control device is more reasonable and practical in design, can quickly heat up to provide a high-temperature test environment, can quickly refrigerate to provide a low-temperature test environment, is simple and clear in function and easy to operate, can interact with external computer equipment, enables internal temperature change to be uniform through surrounding type temperature change, penetrates elements with temperature change in internal heat-preservation cotton, reduces upper and lower temperature stratification, and further causes temperature difference to influence an experiment result.)

1. A high-low temperature test box comprises a bottom plate (1) and is characterized in that a cabinet body is welded on the outer wall of the top of the bottom plate (1), a power distribution cabinet (3) is arranged on the outer wall of one side of the cabinet body, a control panel (4) and a display screen (5) are arranged on the outer wall of the top of the power distribution cabinet (3), a group of test holes (9) distributed at equal intervals are formed in one side, away from the power distribution cabinet (3), of the cabinet body, a working chamber (16) is arranged on the inner wall of the cabinet body, heat-insulating cotton (17) is laid on the inner wall of the working chamber (16), a hanging frame (15) is fixed in the middle of the inner wall of the working chamber (16) through bolts, a test article frame (14) is clamped on the outer wall of the top of the working chamber (16), a blast motor (12) and a blast blade are fixed on one side, close to, a condenser (19), a liquid storage tank (20) and a compressor (21) are fixed on the inner wall of the bottom of the cabinet body through bolts, the condenser (19), the liquid storage tank (20) and the compressor (21) are communicated through a pipeline, and the other end of the condenser (19) is communicated with the inner wall of the heat insulation cotton (17) through a pipeline.

2. The high-low temperature test chamber according to claim 1, wherein a control cabinet (13) is fixed on the inner wall of the top of the cabinet body through bolts, a temperature sensor is arranged on the inner wall of the control cabinet (13), and a signal end of the temperature sensor is connected with a PLC (programmable logic controller) through a signal line.

3. A high-low temperature test chamber as claimed in claim 1, wherein the external heat exchanger (10) is fixed on the outer wall of the bottom end of the cabinet body through bolts, and the port of the external heat exchanger (10) is connected to the liquid storage tank (20) and the condenser (19) through pipes and wires respectively.

4. The high and low temperature test chamber as claimed in claim 1, wherein a chamber door (8) is fixed on the outer wall of the top of the chamber body through a hinge, and an observation window (6) is arranged in the middle of the chamber door (8).

5. The high-low temperature test chamber as claimed in claim 1, wherein a bracket is fixed on the inner wall of the heat insulation cotton (17) through bolts, an evaporator (18) is fixed on the outer wall of the top of the bracket through bolts, and the port of the evaporator (18) is connected with a PLC (programmable logic controller) through a lead.

6. The high-low temperature test chamber as claimed in claim 1, wherein the inner wall of the heat insulation cotton (17) is provided with a heat insulation interlayer, and the inner wall of the heat insulation interlayer is laid with heating wires (11).

7. A high-low temperature test chamber as claimed in claim 1, wherein the blower motor (12), the condenser (19) and the compressor (21) are all connected with switches, and the switches are connected with the PLC controller through wires.

Technical Field

The invention relates to the technical field of test boxes, in particular to a high-low temperature test box.

Background

The high-low temperature test chamber is used for high-temperature and low-temperature reliability tests of industrial products. The performance indexes of parts and materials of related products such as electronics, electricians, automobiles, motorcycles, aerospace, ships, weapons, colleges, scientific research units and the like are tested in high-temperature and low-temperature environments. The existing high-low temperature test box is complicated and unreasonable in structural design, long in temperature rise/reduction process, independent in work, and incapable of being connected or controlled directly by external computer equipment, and test data and the like need to be recorded or read manually.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a high-low temperature test chamber.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-low temperature test chamber comprises a bottom plate, a cabinet body is welded on the outer wall of the top of the bottom plate, a power distribution cabinet is arranged on the outer wall of one side of the cabinet body, the outer wall of the top end of the power distribution cabinet is provided with a control panel and a display screen, one side of the cabinet body, which is far away from the power distribution cabinet, is provided with a group of test holes which are distributed at equal intervals, the inner wall of the cabinet body is provided with a working chamber, the inner wall of the working chamber is laid with heat insulation cotton, the middle part of the inner wall of the working chamber is fixed with a hanging rack through a bolt, and the outer wall of the hanging frame is clamped with a sample rack, the outer wall of the top of the working chamber is fixed with a blast motor and blast blades through bolts, a motor cover is fixed on one side of the outer wall of the top of the cabinet body close to the blower motor through bolts, a condenser, a liquid storage tank and a compressor are fixed on the inner wall of the bottom of the cabinet body through bolts, the condenser, the liquid storage tank and the compressor are communicated through a pipeline, and the other end of the condenser is communicated with the inner wall of the heat insulation cotton through a pipeline.

Preferably, the top inner wall of the cabinet body is fixed with a control cabinet through a bolt, the inner wall of the control cabinet is provided with a temperature sensor, and the signal end of the temperature sensor is connected with a PLC (programmable logic controller) through a signal line.

Preferably, the outer wall of the bottom end of the cabinet body is fixed with an external heat exchanger through a bolt, and the port of the external heat exchanger is respectively connected with the liquid storage tank and the condenser through a pipeline and a lead.

Preferably, the outer wall of the top of the cabinet body is fixedly provided with a bin door through a hinge, and the middle part of the bin door is provided with an observation window.

Preferably, the inner wall of the heat preservation cotton is fixed with a support through a bolt, the outer wall of the top of the support is fixed with an evaporator through a bolt, and a port of the evaporator is connected with the PLC through a wire.

Preferably, the inner wall of the heat preservation cotton is provided with a heat preservation interlayer, and the inner wall of the heat preservation interlayer is paved with heating wires.

Preferably, the blower motor, the condenser and the compressor are all connected with switches, and the switches are connected with the PLC through wires.

The invention has the beneficial effects that:

1. the design of this proof box is more reasonable, practical, and fast heating up provides high temperature test environment, can refrigerate fast again and provide low temperature test environment, and the control panel function is succinct clear moreover, and easy operation can be interactive with outside computer equipment, makes the experimental controllability better, and is more reliable.

2. In the high low temperature control process of this proof box, through the temperature variation of surrounding type, make inside temperature variation unified, alternate the component of temperature variation in inside heat preservation cotton, layering about the reduction temperature, and then cause the temperature difference, influence holistic experimental result.

Drawings

Fig. 1 is a schematic front view of a high-low temperature test chamber according to the present invention;

fig. 2 is a schematic side view of an internal structure of a high-low temperature test chamber according to the present invention.

In the figure: the device comprises a base plate 1, universal wheels 2, a power distribution cabinet 3, a control panel 4, a display screen 5, an observation window 6, a motor cover 7, a bin door 8, a test hole 9, an external heat exchanger 10, a heating wire 11, a blower motor 12, a control cabinet 13, a test sample rack 14, a hanging rack 15, a working chamber 16, heat insulation cotton 17, an evaporator 18, a condenser 19, a liquid storage tank 20 and a compressor 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a high and low temperature test box comprises a bottom plate 1, a cabinet body welded on the outer wall of the top of the bottom plate 1, a power distribution cabinet 3 arranged on the outer wall of one side of the cabinet body, a control panel 4 and a display screen 5 arranged on the outer wall of the top end of the power distribution cabinet 3, a group of test holes 9 distributed equidistantly on one side of the cabinet body away from the power distribution cabinet 3, a working chamber 16 arranged on the inner wall of the cabinet body, heat insulation cotton 17 laid on the inner wall of the working chamber 16, a hanging rack 15 fixed on the middle part of the inner wall of the working chamber 16 through bolts, a sample rack 14 clamped on the outer wall of the hanging rack 15, a blower motor 12 and blower blades fixed on the outer wall of the top of the working chamber 16 through bolts, a motor cover 7 fixed on one side of the outer wall of the top of the cabinet body close to the blower motor 12 through bolts, a condenser 19, a liquid storage, the other end of the condenser 19 is communicated with the inner wall of the heat-preservation cotton 17 through a pipeline, a control cabinet 13 is fixed on the inner wall of the top of the cabinet body through bolts, a temperature sensor is arranged on the inner wall of the control cabinet 13, a signal end of the temperature sensor is connected with a PLC (programmable logic controller) through a signal line, an external heat exchanger 10 is fixed on the outer wall of the bottom of the cabinet body through bolts, a port of the external heat exchanger 10 is respectively connected with a liquid storage tank 20 and the condenser 19 through a pipeline and a wire, a bin door 8 is fixed on the outer wall of the top of the cabinet body through a hinge, an observation window 6 is arranged in the middle of the bin door 8, a support is fixed on the inner wall of the heat-preservation cotton 17 through bolts, an evaporator 18 is fixed on the outer wall of the top of the support through bolts, a port of the evaporator 18 is connected with the PLC through a, The condenser 19 and the compressor 21 are both connected with a switch, and the switch is connected with the PLC controller through a lead.

The working principle is as follows: this high low temperature test box test process, when using, place the article on sample frame 14 through opening the side door, distribute on stores pylon 15, inside is when experimental, through evaporimeter 18 and blower motor 12, the cooperation of air-blast blade, through producing temperature and moisture in the air of hot-blast cotton 17 rise to the standard value, 25 ℃ and a standard atmospheric pressure, through condenser 19, liquid storage tank 20 and compressor 21 form low temperature, through the temperature variation of surrounding type, make inside temperature variation unified, alternate the component of temperature variation in inside heat preservation cotton 17, the layering about the reduction temperature, and then cause the temperature difference, influence holistic experimental result.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.