High-temperature aging test box

Abstract

The utility model relates to a high-temperature aging test box which comprises a high-temperature box body, a temperature sensor, a gas flow controller, a gas pump and a controller, the temperature sensor is arranged in the high-temperature box body to monitor the temperature in the high-temperature box body; the high-temperature box body is provided with an air inlet, the air inlet is connected with the output end of the gas flow controller through an air pipe, and the input end of the gas flow controller is connected with the air pump through an air pipe; and the temperature sensor and the gas flow controller are connected with the controller. The internal temperature of the high-temperature box body is collected through the temperature sensor, and when cooling is needed, the controller controls the gas flow of the gas flow controller, so that the interior of the high-temperature box body is cooled. The safety of a user can be better protected, the test efficiency is improved, and meanwhile, an abnormal failure mechanism in the test is avoided.

Description

Technical Field

[0001] The utility model relates to the field of test equipment, in particular to a high-temperature aging test box. Background Art

[0002] High temperature box is also called high temperature aging test box, aging box, high temperature oven, high temperature oven, thermal aging test box. High temperature box is used for thermal aging test of various electronic products and rubber plastics.

[0003] Temperature test chambers usually use heaters for heating and compressors for cooling. However, high-temperature chambers do not include compressor refrigeration systems due to cost considerations, so they cannot control the cooling after the temperature rises. In practice, users can only choose to open the door to cool down or wait for the equipment to cool down naturally.

[0004] The maximum temperature of a conventional high temperature box is around 200℃~300℃, and the maximum temperature of some high temperature boxes can reach 500℃ or even 800℃ or higher. Once the temperature is high, opening the door directly will pose a safety hazard, and the time required for the equipment to cool naturally is too long, which seriously affects the efficiency of the test.

[0005] If you choose to open the door, the temperature inside the box will change dramatically. Some materials cannot withstand the rapid temperature change, which may cause abnormal failure of the sample and lead to failure of the test. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a high temperature aging test box to solve the problems in the background technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model discloses a high temperature aging test box, comprising a high temperature box body, a temperature sensor, a gas flow controller, an air pump and a controller;

[0009] The temperature sensor is arranged inside the high-temperature box to monitor the internal temperature of the high-temperature box; the high-temperature box is provided with an air inlet, the air inlet is connected to the output end of the gas flow controller through an air pipe, and the input end of the gas flow controller is connected to the air pump through an air pipe; the temperature sensor and the gas flow controller are both connected to the controller.

[0010] In one embodiment of the present application, the high temperature box is provided with a cabinet door.

[0011] In one embodiment of the present application, a pressure balancing port is also provided on the high temperature box.

[0012] In one embodiment of the present application, a heater for heating the interior of the high temperature box is further provided inside the high temperature box.

[0013] In one embodiment of the present application, a circulating fan for circulating the air inside the high-temperature box is further provided inside the high-temperature box.

[0014] The beneficial effects of the utility model are as follows: the utility model is a high-temperature aging test box, including a high-temperature box, a temperature sensor, a gas flow controller, an air pump and a controller; the temperature sensor is arranged inside the high-temperature box to monitor the internal temperature of the high-temperature box; the high-temperature box is provided with an air inlet, the air inlet is connected to the output end of the gas flow controller through an air pipe, and the input end of the gas flow controller is connected to the air pump through an air pipe; the temperature sensor and the gas flow controller are both connected to the controller. The present application uses a temperature sensor to collect the internal temperature of the high-temperature box, but when cooling is required, the controller controls the gas flow of the gas flow controller to cool the inside of the high-temperature box. The present application can better protect the safety of users, improve test efficiency, and avoid abnormal failure mechanisms during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is a structural schematic diagram of a high temperature aging test chamber of the utility model;

[0017] 1- high temperature box, 11- air inlet, 12- pressure balance port, 2- circulation fan, 3- temperature sensor, 4- heater, 5- gas flow controller, 6- air pump, 7- controller, 8- air pipe. DETAILED DESCRIPTION

[0018] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0019] It should be noted that the illustrations provided in the following embodiments are only used to schematically illustrate the basic concept of the present invention, so the drawings only show the layers related to the present invention rather than being drawn according to the number, shape and size of the layers in actual implementation. In actual implementation, the type, quantity and proportion of each layer may be changed arbitrarily, and the layer layout may also be more complicated.

[0020] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention; however, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details.

[0021] like Figure 1 As shown, a high temperature aging test chamber in the present application includes a high temperature chamber 1, a temperature sensor 3, a gas flow controller 5, an air pump 6 and a controller 7;

[0022] The temperature sensor 3 is arranged inside the high-temperature box 1 to monitor the internal temperature of the high-temperature box 1; the high-temperature box 1 is provided with an air inlet 11, and the air inlet 11 is connected to the output end of the gas flow controller 5 through the air pipe 8, and the input end of the gas flow controller 5 is connected to the air pump 6 through the air pipe 8; the temperature sensor 3 and the gas flow controller 5 are both connected to the controller 7.

[0023] The high temperature box 1 is provided with a cabinet door.

[0024] The high temperature box 1 is also provided with a pressure balance port 12 .

[0025] A heater 4 for heating the interior of the high temperature box 1 is also provided inside the high temperature box 1 .

[0026] A circulating fan 2 for circulating the air inside the high-temperature box 1 is also provided inside the high-temperature box 1 .

[0027] In the present application, the high temperature box 1 and the cabinet door form a cavity, and provide insulation to isolate the internal and external temperature conduction. The circulation fan 2 forces the internal air to circulate so that the internal temperature is evenly distributed.

[0028] The heater 4 heats the air inside, which causes the air to expand and increase in pressure. The gas is discharged through the pressure balance port 12 and reaches pressure balance with the external environment.

[0029] When cooling is required, the power supply to the heater 4 is stopped, the circulating fan 2 is kept working, and the air pump 6 is started to extract normal temperature air around the high temperature box and output compressed air. The gas flow controller 5 controls the flow rate of the output compressed air and enters the high temperature box 1 through the air inlet 11 to cool the inner cavity of the high temperature box 1. The controller 7 controls the cooling rate by controlling the gas flow rate.

[0030] Generally speaking, conventional cooling methods include compressor refrigeration, liquid nitrogen refrigeration, semiconductor refrigeration, etc.

[0031] The compressor is large in size, has high power consumption, a complex system, and high cost, but has strong refrigeration capacity and can achieve a high cooling rate. Liquid nitrogen refrigeration has extremely fast cooling capacity and extreme cooling capacity, but requires a relatively complex supporting system and has high requirements for the supporting system. Not only is the supporting cost very high, but the cost of use is also very high. Semiconductor refrigeration is small in size, but has a low cooling capacity and high power consumption. The corresponding low cooling rate cannot meet actual use needs.

[0032] Compressed air cooling has the characteristics of low cost, small size and sufficient cooling capacity. It is very suitable for high temperature boxes and can well control the size and cost of high temperature boxes.

[0033] Considering that the existing high temperature chambers are sold at a low price, but lack a cooling function, the high temperature chambers are very unfriendly to users in actual use, which seriously affects the waiting time after the test. Or the only option is to take the unconventional method of opening the chamber door to cool down, but this is followed by additional failures that may be caused by rapid temperature changes of the samples.

[0034] In order to better protect the safety of users, improve test efficiency, and avoid additional failure mechanisms during the test, it is a very suitable solution to control the cooling and rate control of the high temperature box by controlling and injecting compressed air.

[0035] The utility model discloses a high-temperature aging test box, including a high-temperature box, a temperature sensor, a gas flow controller, an air pump and a controller; the temperature sensor is arranged inside the high-temperature box to monitor the internal temperature of the high-temperature box; the high-temperature box is provided with an air inlet, the air inlet is connected to the output end of the gas flow controller through an air pipe, and the input end of the gas flow controller is connected to the air pump through an air pipe; the temperature sensor and the gas flow controller are both connected to the controller. The present application uses a temperature sensor to collect the internal temperature of the high-temperature box, but when cooling is required, the controller controls the gas flow of the gas flow controller to cool the inside of the high-temperature box. The present application can better protect the safety of users, improve test efficiency, and avoid abnormal failure mechanisms during the test.

[0036] In the above embodiments, although the utility model has been described in conjunction with the specific embodiments of the utility model, many replacements, modifications and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. The embodiments of the utility model are intended to cover all such replacements, modifications and variations that fall within the broad scope of the appended claims.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A high temperature aging test chamber, characterized in that: It comprises a high temperature box (1), a temperature sensor (3), a gas flow controller (5), an air pump (6) and a controller (7); The temperature sensor (3) is arranged inside the high-temperature box (1) to monitor the internal temperature of the high-temperature box (1); the high-temperature box (1) is provided with an air inlet (11), the air inlet (11) is connected to the output end of the gas flow controller (5) through an air pipe (8), and the input end of the gas flow controller (5) is connected to the air pump (6) through the air pipe (8); the temperature sensor (3) and the gas flow controller (5) are both connected to the controller (7).

2. A high temperature aging test chamber according to claim 1, characterized in that: The high-temperature box (1) is provided with a cabinet door.

3. A high temperature aging test chamber according to claim 1, characterized in that: The high-temperature box (1) is also provided with a pressure balancing port (12).

4. A high temperature aging test chamber according to claim 1, characterized in that: A heater (4) for heating the interior of the high-temperature box (1) is also provided inside the high-temperature box (1).

5. A high temperature aging test chamber according to claim 1, characterized in that: A circulating fan (2) for circulating the air inside the high-temperature box (1) is also provided inside the high-temperature box (1).

Images