Constant temperature and humidity chamber

Abstract

The utility model discloses a constant temperature and humidity chamber, and relates to the technical field of constant temperature and humidity equipment, the constant temperature and humidity chamber comprises a chamber body, a pressurization module and a pressure discharge module, and a constant temperature and humidity cavity is formed in the chamber body; the pressurizing module is used for conveying steam to the constant-temperature and constant-humidity cavity; the pressure discharging module comprises a pressure discharging opening, and the pressure discharging opening communicates with the constant-temperature and constant-humidity cavity, is arranged close to the bottom end of the constant-temperature and constant-humidity cavity and is used for discharging part of gas in the constant-temperature and constant-humidity cavity so as to reduce the pressure in the constant-temperature and constant-humidity cavity. The technical scheme provided by the utility model aims to reduce the energy consumption during the operation of the constant temperature and humidity chamber.

Description

Technical Field

[0001] The utility model relates to the technical field of constant temperature and humidity equipment, in particular to a constant temperature and humidity box. Background Art

[0002] A constant temperature and humidity chamber is a type of testing equipment capable of maintaining a set temperature and humidity within a certain range. It can be used to store instruments with specific requirements for ambient humidity and temperature. To maintain the humidity and temperature within the chamber at preset values, water vapor is promptly added to prevent heat loss and the resulting loss of humidity and temperature due to condensation of water vapor into liquid. However, this process also increases the air pressure within the chamber. To prevent the chamber from rupturing due to excessive air pressure, thereby compromising its airtight structure, a pressure relief vent is installed within the chamber to allow excess gas to escape and reduce the pressure within.

[0003] In the current constant temperature and humidity chamber, the pressure relief port is set near the top of the constant temperature and humidity chamber. When the internal pressure increases, this setting is conducive to rapid pressure release at the initial stage of pressure rise. However, if the pressure is discharged too frequently, the airflow will carry away more water vapor from the pressure relief port, reducing the humidity and temperature in the constant temperature and humidity chamber, thereby prompting the constant temperature and humidity chamber to transport more water vapor to the constant temperature and humidity chamber, which is not conducive to the energy-saving operation of the constant temperature and humidity chamber. Utility Model Content

[0004] The main purpose of the utility model is to provide a constant temperature and humidity chamber, aiming to reduce energy consumption during operation of the constant temperature and humidity chamber.

[0005] To achieve the above-mentioned purpose, the constant temperature and humidity chamber proposed in the present invention comprises:

[0006] The box body is formed with a constant temperature and humidity chamber;

[0007] A pressurizing module, used for delivering water vapor to the constant temperature and humidity chamber;

[0008] The pressure discharge module includes a pressure discharge port, which is connected to the constant temperature and humidity chamber and is arranged near the bottom end of the constant temperature and humidity chamber. It is used to discharge part of the gas in the constant temperature and humidity chamber to reduce the pressure in the constant temperature and humidity chamber.

[0009] In one embodiment, the pressure relief module includes a pressure relief pipe, one end of the pressure relief pipe extends out of the top plate of the box body, and the other end is formed with the pressure relief port.

[0010] In one embodiment, the box body further includes a first compartment, the first compartment is provided with a first opening connected to the constant temperature and humidity chamber, and the first opening is arranged near the bottom end of the constant temperature and humidity chamber, and the pressure relief port is arranged in the first compartment and near the first opening.

[0011] In one embodiment, the box body further includes a second compartment, the second compartment and the constant temperature and humidity chamber are respectively arranged on both sides of the first compartment, the pressure relief pipe includes a first pipe section and a second pipe section connected to each other, the pressure relief port is arranged in the first pipe section, the first pipe section extends from the first compartment to the second compartment, and the second pipe section extends in the second compartment along the height direction of the box body and extends out of the top end of the box body.

[0012] In one embodiment, the box body includes a partition plate, the first compartment and the second compartment are respectively formed on both sides of the partition plate, the partition plate is provided with a through hole for the first pipe section to pass through, and a seal is provided between the through hole and the first pipe section.

[0013] In one embodiment, the pressure relief port is arranged toward the first opening, and the constant temperature and humidity chamber, the first compartment, and the second compartment are arranged in sequence in a first direction, and the first direction intersects with a height direction of the box.

[0014] In one embodiment, the bottom end plate of the first compartment extends obliquely toward the bottom end of the box body in a direction away from the constant temperature and humidity chamber.

[0015] In one embodiment, the first opening comprises a grille hole.

[0016] In one embodiment, the pressurization module includes a blowing assembly, and the first compartment is also provided with a second opening connected to the constant temperature and humidity chamber, and the second opening is arranged near the top of the constant temperature and humidity chamber, and the blowing assembly is used to make the air flow flow through the second opening, the constant temperature and humidity chamber, the first opening and the first compartment in sequence.

[0017] In one embodiment, the blowing assembly includes a blower, which is arranged in the first compartment and near the top of the constant temperature and humidity chamber. The blower includes an air inlet and an air outlet, the air outlet is arranged toward the second opening, and the air inlet is arranged toward the first compartment.

[0018] In one embodiment, the pressurizing module further includes a steam component, which is disposed in the box and includes a steam pipe communicating with the first compartment, and the steam pipe is used to provide steam to the first compartment.

[0019] The technical solution of the present invention is to set the pressure relief port near the lower end of the constant temperature and humidity chamber. When the pressure in the constant temperature and humidity chamber accumulates, the air flow will flow upward. When the pressure accumulates to a certain level, the air flow can enter the pressure relief port to discharge the gas in the constant temperature and humidity chamber. Therefore, the amount of air discharged from the constant temperature and humidity chamber is small and the frequency of exhaust is low. Therefore, the water vapor and heat brought out when the air flow flows out of the constant temperature and humidity chamber are low, so that the pressurizing module can replenish humidity and temperature to the constant temperature and humidity chamber at a low frequency, which helps to reduce the energy consumption during the operation of the constant temperature and humidity chamber and achieve energy-saving operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A structural diagram of an embodiment of a constant temperature and humidity chamber provided by the present utility model;

[0022] Figure 2 for Figure 1 a side view of the illustrated embodiment;

[0023] Figure 3 for Figure 1 Another structural schematic diagram of the illustrated embodiment;

[0024] Figure 4 for Figure 1 a front view of the illustrated embodiment;

[0025] Figure 5 for Figure 1 Another structural schematic diagram of the illustrated embodiment.

[0026] Description of Figure Numbers:

[0027] 100, housing; 11, constant temperature and humidity chamber; 111, first opening; 112, second opening; 12, first compartment; 13, second compartment;

[0028] 200, pressurizing module; 21, blowing assembly; 211, blower; 212, air inlet; 213, air outlet; 22, steam assembly;

[0029] 300, pressure relief module; 31, pressure relief pipe; 311, pressure relief port; 312, first pipe section; 313, second pipe section; 32, partition plate; 321, through hole; 322, air hole.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The utility model provides a constant temperature and humidity box.

[0035] See also Figures 1 to 5 In one embodiment of the present invention, the constant temperature and humidity chamber comprises:

[0036] The box body 100 is formed with a constant temperature and humidity chamber 11;

[0037] The pressurizing module 200 is used to deliver water vapor to the constant temperature and humidity chamber 11;

[0038] The pressure relief module 300 includes a pressure relief port 311 , which is connected to the constant temperature and humidity chamber 11 and is arranged near the bottom end of the constant temperature and humidity chamber 11 , and is used to discharge part of the gas in the constant temperature and humidity chamber 11 to reduce the pressure in the constant temperature and humidity chamber 11 .

[0039] The technical solution of the present invention is to set the pressure relief port 311 close to the lower end of the constant temperature and humidity chamber 11. When the pressure in the constant temperature and humidity chamber 11 accumulates, the air flow will flow upward. When the pressure accumulates to a certain level, the air flow can enter the pressure relief port 311 to discharge the gas in the constant temperature and humidity chamber 11. Therefore, the amount of air discharged from the constant temperature and humidity chamber 11 is small and the frequency of exhaust is low. Therefore, the water vapor and heat brought out when the air flow flows out of the constant temperature and humidity chamber 11 are low, so that the pressurizing module 200 can replenish the humidity and temperature to the constant temperature and humidity chamber 11 at a low frequency, which helps to reduce the energy consumption during the operation of the constant temperature and humidity chamber and achieve energy-saving operation.

[0040] In one embodiment, the pressure relief module 300 includes a pressure relief pipe 31, one end of which extends out of the top plate of the housing 100, and the other end is formed with a pressure relief port 311. That is, after entering the pressure relief pipe 31, the airflow will flow upward and be discharged from the top of the housing 100. During this process, the gas in the pressure relief pipe 31 will exchange heat with the gas in the non-constant temperature and humidity chamber 11 in the housing 100, causing some of the water vapor in the pressure relief pipe to cool down and thus be unable to rise with the gas. Instead, it will be retained in the pressure relief pipe 31 and gradually condense into liquid. The water vapor then flows downward along the inner wall of the pressure relief pipe 31 and out of the pressure relief port 311, so that the humidity in the constant temperature and humidity chamber 11 can be replenished at an appropriate time. In other embodiments, the pressure relief pipe 31 may extend from the side of the housing 100.

[0041] In one embodiment, the housing 100 further includes a first compartment 12, which is provided with a first opening 111 communicating with the constant temperature and humidity chamber 11. The first opening 111 is located near the bottom of the constant temperature and humidity chamber 11, and a pressure relief port 311 is located in the first compartment 12 and near the first opening 111. That is, the first opening 111 is located near the bottom of the constant temperature and humidity chamber 11, and gas within the constant temperature and humidity chamber 11 enters the first compartment 12 through the first opening 111. When the pressure within the constant temperature and humidity chamber 11 accumulates to a level requiring pressure relief, the gas within the constant temperature and humidity chamber 11 enters the pressure relief port 311 through the first compartment 12. The pressure relief port 311 is located near the first opening 111, which helps the gas within the constant temperature and humidity chamber 11 flow directly into the pressure relief pipe 31 after passing through the first opening 111, thereby achieving rapid pressure relief. At the same time, liquid dripping from the pressure relief port 311 is received by the first compartment 12, thereby preventing the liquid from accumulating in the constant temperature and humidity chamber 11 and damaging the equipment placed therein. This also prevents the liquid from absorbing too much heat from the constant temperature and humidity chamber 11, thereby helping to maintain a stable temperature within the constant temperature and humidity chamber 11. In other embodiments, the first compartment 12 may not be provided.

[0042] In one embodiment, the bottom end plate of the first compartment 12 extends obliquely toward the bottom end of the housing 100, away from the constant temperature and humidity chamber 11. This allows liquid dripping from the pressure relief port 311 to slide along the oblique direction of the bottom plate after landing on the bottom end plate of the first compartment 12, accumulating on the end of the first compartment 12 away from the constant temperature and humidity chamber 11. This allows the first compartment 12 to store a large amount of liquid. This helps prevent liquid from flowing into the constant temperature and humidity chamber 11 through the first opening 111 in a short period of time during prolonged operation of the constant temperature and humidity chamber. In other embodiments, the bottom end plate of the first compartment 12 is positioned below the bottom end plate of the constant temperature and humidity chamber 11.

[0043] In one embodiment, the pressurizing module 200 includes a blowing assembly 21. The first compartment 12 is further provided with a second opening 112 communicating with the constant temperature and humidity chamber 11. The second opening 112 is disposed near the top of the constant temperature and humidity chamber 11. The blowing assembly 21 is configured to sequentially cause airflow to flow through the second opening 112, the constant temperature and humidity chamber 11, the first opening 111, and the first compartment 12. In other words, the blowing assembly 21 is configured to cause airflow to circulate between the first compartment 12 and the constant temperature and humidity chamber 11. Specifically, within the constant temperature and humidity chamber 11, airflow flows in from the second opening 112 and out from the first opening 111, thereby evenly distributing water vapor within the constant temperature and humidity chamber 11. This also facilitates direct and convenient flow of airflow into the pressure relief port 311 near the first opening 111 during pressure relief. In other embodiments, the first compartment 12 may not be provided with the second opening 112, and an outlet fan may be provided in the constant temperature and humidity chamber 11. The outlet fan may discharge air in a direction in the constant temperature and humidity chamber 11 to realize the circulation of air flow in the constant temperature and humidity chamber 11, thereby driving the water vapor to be evenly distributed in the constant temperature and humidity chamber 11.

[0044] In one embodiment, the pressurizing module 200 further includes a steam assembly 22 disposed within the housing 100 and including a steam pipe communicating with the first compartment 12. The steam pipe is configured to supply steam to the first compartment 12. Specifically, the steam first enters the first compartment 12 and diffuses therein. The steam is then blown into the constant temperature and humidity chamber 11 through the second opening 112 by the blowing assembly 21 to replenish the humidity and temperature of the constant temperature and humidity chamber 11. It should be noted that, since the steam component 22 heats the liquid to gaseous water vapor and then directly passes the water vapor into the first compartment 12, the water vapor entering the first compartment 12 has a relatively high temperature. It is necessary to wait in the first compartment 12 for the water vapor's temperature to drop to a preset temperature before the blowing component 21 passes the gas in the first compartment 12 to the constant temperature and humidity chamber 11. During this process, the liquid accumulated in the first compartment 12 can absorb the heat in the first compartment 12, and some of the liquid can be re-vaporized and blown into the constant temperature and humidity chamber 11 by the blowing component 21. Therefore, the pressure relief port 311 is positioned close to the first opening 111 so that the pressure relief port 311 can receive the maximum amount of gas from the constant temperature and humidity chamber 11, thereby preventing gas with a large amount of water vapor or a relatively high temperature from entering the pressure relief port 311. In other embodiments, the steam component 22 can also be positioned in the second compartment 13.

[0045] In one embodiment, the housing 100 further includes a second compartment 13. The second compartment 13 and the constant temperature and humidity chamber 11 are located on either side of the first compartment 12. The pressure relief pipe 31 includes a first pipe section 312 and a second pipe section 313 connected to each other. The pressure relief port 311 is located in the first pipe section 312. The first pipe section 312 extends from the first compartment 12 into the second compartment 13. The second pipe section 313 extends within the second compartment 13 along the height of the housing 100 and extends out of the top of the housing 100. To reduce the loss of water vapor in the constant temperature and humidity chamber 11 and avoid frequent activation of the pressurizing module 200, it is necessary to prevent a large amount of water vapor from flowing out during pressure relief. Therefore, the overall temperature within the pressure relief pipe 31 should not be too high so that the water vapor has sufficient energy to flow out of the second pipe section 313. Because the temperature in the first compartment 12 rises when water vapor is introduced, the temperature of the tube wall of the first pipe section 312 also rises. Solid materials have better heat storage properties than gases, so the tube wall cools down more slowly. After the constant temperature and humidity chamber has been in operation for a long time, that is, after water vapor has been introduced into the first compartment 12 multiple times, the temperature in the first pipe section 312 remains high. To prevent water vapor from gaining sufficient energy to rise within the pressure relief pipe 31, a second pipe section 313 is provided outside the first compartment 12 and the constant temperature and humidity chamber 11, i.e., the second compartment 13. The temperature of the second compartment 13 is lower than that of the first compartment 12, thereby maintaining a lower temperature within the second pipe section 313 and dissipating the energy of the water vapor within the second pipe section 313. This reduces the energy of the water vapor, preventing it from continuing to rise and allowing it to liquefy within the second pipe section 313, roll to the exhaust port, and drip into the first compartment 12, thereby retaining a large amount of water vapor within the constant temperature and humidity chamber. In other embodiments, the second pipe section 313 may not be provided.

[0046] In one embodiment, the chamber 100 includes a partition plate 32, with the first compartment 12 and the second compartment 13 formed on either side. The partition plate 32 is provided with a through hole 321 for the first tube section 312 to pass through, and a seal is provided between the through hole 321 and the first tube section 312. Furthermore, the partition plate 32 is provided with an air hole 322, through which a steam pipe is provided, and a seal is provided between the air hole 322 and the steam pipe. This maintains the airtightness within the first compartment 12 and prevents moisture from entering other chambers within the constant temperature and humidity chamber. In other embodiments, the partition plate 32 may not be provided.

[0047] In one embodiment, the pressure relief port 311 is positioned toward the first opening 111. The constant temperature and humidity chamber 11, the first compartment 12, and the second compartment 13 are sequentially arranged in a first direction, with the first direction intersecting the height direction of the housing 100. In other words, the first pipe section 312 extends in the first direction, with the pressure relief port 311 facing the first opening 111. In other embodiments, the constant temperature and humidity chamber 11 and the second compartment 13 may be positioned on either side of the first compartment 12.

[0048] In one embodiment, the first opening 111 includes grille holes. Furthermore, the grille holes are arranged along the width of the constant temperature and humidity chamber 11. While shielding the first compartment 12, they also allow more airflow within the constant temperature and humidity chamber 11 to flow into the first compartment 12. In other embodiments, the first opening 111 may not include grille holes.

[0049] In one embodiment, the blowing assembly 21 includes a blower 211, which is disposed in the first compartment 12 and near the top of the constant temperature and humidity chamber 11. The blower 211 includes an air inlet 212 and an air outlet 213. The air outlet 213 is disposed toward the second opening 112, and the air inlet 212 is disposed toward the first compartment 12. The air inlet 212 can draw air from the first compartment 12, and the air outlet 213 can blow air toward the top of the constant temperature and humidity chamber 11, injecting water vapor from the top of the constant temperature and humidity chamber 11, thereby forming a circulating airflow between the constant temperature and humidity chamber 11 and the first compartment 12. In other embodiments, the blowing assembly 21 can also include an air flow fan, which is disposed toward the second opening 112.

[0050] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A constant temperature and humidity chamber, characterized in that: include: The box body is formed with a constant temperature and humidity chamber; A pressurizing module, used for delivering water vapor to the constant temperature and humidity chamber; The pressure discharge module includes a pressure discharge port, which is connected to the constant temperature and humidity chamber and is arranged near the bottom end of the constant temperature and humidity chamber. It is used to discharge part of the gas in the constant temperature and humidity chamber to reduce the pressure in the constant temperature and humidity chamber.

2. The constant temperature and humidity chamber according to claim 1, characterized in that The pressure relief module includes a pressure relief pipe, one end of which extends out of the top plate of the box body, and the other end of which is formed with the pressure relief port.

3. The constant temperature and humidity chamber according to claim 2, characterized in that: The box body also includes a first compartment, which is provided with a first opening connected to the constant temperature and humidity chamber, and the first opening is arranged near the bottom end of the constant temperature and humidity chamber. The pressure relief port is arranged in the first compartment and near the first opening.

4. The constant temperature and humidity chamber according to claim 3, characterized in that The box body also includes a second compartment, and the second compartment and the constant temperature and humidity chamber are respectively arranged on both sides of the first compartment. The pressure relief pipe includes a first pipe section and a second pipe section connected to each other. The pressure relief port is arranged in the first pipe section. The first pipe section extends from the first compartment to the second compartment. The second pipe section extends in the second compartment along the height direction of the box body and extends out of the top end of the box body.

5. The constant temperature and humidity chamber according to claim 4, characterized in that: The box body includes a partition plate, the first compartment and the second compartment are respectively formed on both sides of the partition plate, the partition plate is provided with a through hole for the first pipe section to pass through, and a sealing member is provided between the through hole and the first pipe section.

6. The constant temperature and humidity chamber according to claim 4, characterized in that: The pressure discharge port is arranged toward the first opening. The constant temperature and humidity chamber, the first compartment, and the second compartment are sequentially arranged in a first direction, and the first direction intersects with a height direction of the box body.

7. The constant temperature and humidity chamber according to claim 3, characterized in that: The bottom end plate of the first compartment extends obliquely toward the bottom end of the box body in a direction away from the constant temperature and humidity chamber; And / or, the first opening includes a grille hole.

8. The constant temperature and humidity chamber according to claim 3, wherein: The pressurization module includes a blowing assembly, and the first compartment is also provided with a second opening connected to the constant temperature and humidity chamber. The second opening is arranged near the top of the constant temperature and humidity chamber. The blowing assembly is used to allow the air flow to flow through the second opening, the constant temperature and humidity chamber, the first opening and the first compartment in sequence.

9. The constant temperature and humidity chamber according to claim 8, characterized in that The blowing assembly includes a blower, which is arranged in the first compartment and close to the top of the constant temperature and humidity chamber. The blower includes an air inlet and an air outlet. The air outlet is arranged toward the second opening, and the air inlet is arranged toward the first compartment.

10. The constant temperature and humidity chamber according to claim 8, characterized in that The pressurizing module further includes a steam component, which is disposed in the box body and includes a steam pipe communicating with the first compartment, and the steam pipe is used to provide steam to the first compartment.

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