Constant humidity device

Abstract

The utility model belongs to the technical field of humidity control, and discloses a constant humidity device, which comprises a box body provided with a spray inlet used for introducing spray into the box body; the measuring assembly comprises a measuring cavity and a base rod, the measuring cavity is communicated with the base rod, a part of the base rod is exposed out of the box body, the measuring cavity is arranged in the box body, a water absorption part covers the outside of the measuring cavity, and a humidity measuring part is arranged in the measuring cavity; the control part is connected with the humidity measuring part, and the control part is used for controlling the spray flow of the spray inlet. The humidity in the box is monitored in real time by arranging the measuring assembly, errors caused by indirect measurement are avoided, regular calibration is not needed while the measuring precision is ensured, humidity measuring result distortion caused by pollutants is avoided, and the humidity stability of the constant humidity device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of humidity control, specifically relates to a constant humidity device. BACKGROUND

[0002] In the process of high-speed development of new energy manufacturing field, humidity control plays an important role in quality guarantee of production link. Many key processes, such as preparation of lithium battery electrode material, processing of hydrogen fuel cell proton exchange membrane and coating process of solar cell piece, all have extremely strict requirements on environmental humidity. Once humidity deviates, many problems such as material performance degradation, product structure defect and even production process interruption will be caused.

[0003] Traditional oven humidity ware exposes many limitations in new energy manufacturing scene. Its composition usually depends on two temperature meters of the same specification, dry bulb thermometer is exposed to air to measure ambient temperature, and wet bulb thermometer adopts spray type humidity design, from which the specific functional relationship between air humidity and dry-wet bulb temperature difference is derived to provide basis for humidity calculation. However, as an indirect measuring instrument, the traditional oven humidity ware has the following problems, firstly, in order to ensure measurement accuracy, calibration work needs to be carried out regularly, secondly, some pollutants in the production environment can easily interfere with the normal work of the thermometer, causing the measurement result to be distorted. Furthermore, when the temperature range of the application scene is large, due to thermal expansion and contraction and other physical effects, the characteristics of the thermometer itself change, and complex temperature compensation must be carried out to ensure measurement accuracy.

[0004] Therefore, there is an urgent need in the field for a constant humidity device to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model aims at solving the above problems and provides a constant humidity device.

[0006] The utility model provides a constant humidity device, which comprises:

[0007] A box body is provided with a spray inlet, and the spray inlet is used to introduce spray into the inside of the box body.

[0008] A measuring assembly comprises a measuring cavity and a base rod, the measuring cavity is communicated with the base rod, the base rod is partially leaked outside the box body, the measuring cavity is arranged inside the box body, a water absorbing element is arranged outside the measuring cavity, and a humidity measuring element is arranged inside the measuring cavity.

[0009] A control element is connected with the humidity measuring element, and the control element is used to control the spray flow of the spray inlet.

[0010] As a further improvement of the utility model, the constant humidity device further comprises a position adjusting piece, the position adjusting piece is sleeved on the base rod, the position adjusting piece abuts against the box, and the position adjusting piece is used for adjusting the position of the measuring cavity in the box.

[0011] As a further improvement of the utility model, the measuring cavity is provided with a measuring opening at one end away from the base rod, the humidity measuring piece comprises a detection end and a data transmission end, the detection end is arranged towards the measuring opening, and the data transmission end is connected with the control piece through the base rod.

[0012] As a further improvement of the utility model, the constant humidity device further comprises a spray output pipeline, the spray output pipeline is communicated with an external liquid supply device, and the spray output pipeline is plug-in connected with the spray inlet.

[0013] As a further improvement of the utility model, the water absorbing piece is covered outside the measuring cavity in a spiral winding mode.

[0014] As a further improvement of the utility model, the water absorbing piece is gauze.

[0015] As a further improvement of the utility model, the humidity measuring piece is a capacitive sensor.

[0016] As a further improvement of the utility model, a flow regulating valve is arranged on the spray output pipeline, and the flow regulating valve is connected with the control piece.

[0017] As a further improvement of the utility model, the constant humidity device further comprises a sealing piece, the sealing piece is arranged between the position adjusting piece and the box, and the sealing piece is used for sealing the box.

[0018] As a further improvement of the utility model, the outer surface of the box is coated with a water-proof material.

[0019] The technical effect of the utility model is: compared with prior art, the utility model provides a constant humidity device, through setting up measurement assembly to the real-time accurate monitoring of humidity in the box, and the efficient regulation and control of control piece based on measurement feedback, realize the accurate maintenance of humidity in the box body in the set range. Compared with the existing constant humidity box using indirect measurement, the intermediate link error is reduced, the measurement accuracy is ensured without regular calibration; and the measurement cavity is located in the box body, the water absorption part wraps the measurement cavity, the anti-interference ability is strong, the humidity data is stable and reliable. The control piece and the humidity measurement piece are connected to constitute a feedback system, realize rapid and accurate regulation and control of the spray inlet flow, meet the different humidity change rate requirements, can adapt to various spray sources, widen the application range, at the same time, the box body is the overall shell of the device, isolates the direct entry of a large amount of dust, particulate matter and other pollutants in the external measurement assembly area, effectively blocks the large size pollutants such as metal scraps, fiber fluff and the like in the workshop production, avoids that the pollutants easily interfere to cause the distortion of humidity measurement result, improves the stability of the constant humidity device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only a part of the embodiments of the utility model, not all the embodiments, for those skilled in the art, under the premise of not creating labor, according to these drawings, other drawings obtained also belong to the protection scope of the application.

[0021] Figure 1 It is the internal structure schematic diagram of the constant humidity device provided by the utility model embodiment.

[0022] Mark explanation:

[0023] 10 is the box body, 11 is the spray inlet, 20 is the measurement assembly, 21 is the measurement cavity, 211 is the water absorption part, 212 is the opening, 22 is the base rod, 23 is the humidity measurement piece, 231 is the detection end, 232 is the data transmission end, 30 is the position adjusting piece, 31 is the sealing piece. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed to the utility model with the drawings and specific embodiments.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0025] To make the description of the present disclosure more detailed and complete, the following describes the embodiments of the present application in a descriptive manner; but this is not the only form of implementation or use of the specific embodiments of the present application. The embodiments include the features of the specific embodiments and the method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] It should be noted that the terms "first", "second" and the like in the description of the present application and the claims and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0027] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; the text "and / or" is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two, and other quantifiers similar thereto should be understood. The preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application, and the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] Please refer to Figure 1 The present application provides a constant humidity device to solve the problem of indirect measurement of the existing humidity meter, which needs to be calibrated periodically, and is easily contaminated by pollutants, resulting in distorted measurement results and low measurement accuracy.

[0029] Specifically, please refer to Figure 1The utility model provides a constant humidity device's internal structure schematic diagram provides, the utility model provides a kind of constant humidity device, including: box 10, measurement component 20 and control piece (not shown in drawing).The box 10 is equipped with spray inlet 11, the spray inlet 11 is used to introduce spray into the inside of the box 10, and the box 10 is as the closed space of entire device, and the stable humidity environment foundation is created for inside.It is set on the spray inlet 11 of it and is the passageway that external spray water vapor enters, and spray is introduced into the inside of box 10, when spray enters the box 10 after passing through spray inlet 11, the humidity state in the box 10 is changed, and condition is created for subsequent humidity regulation and measurement.It needs to be explained that, the window for taking and placing product is also opened on the box, and the size shape of window is not limited in this embodiment, and is set according to product specification.The measurement component 20 includes measurement cavity 21 and base rod 22, the measurement cavity 21 is communicated with the base rod 22, the base rod 22 part leaks out the outside of the box 10, the measurement cavity 21 is located in the inside of the box 10, the measurement cavity 21 is covered with water absorbing part 211 outside, the measurement cavity 21 is equipped with humidity measuring piece 23 inside, and measurement cavity 21 is located in the inside of the box 10, directly contacts the air in the box, and the water absorbing part 211 covered outside it has high water absorption, can quickly absorb the water vapor in the air in the box, along with the change of humidity in the box, the water content of water absorbing part 211 also changes, when the humidity in the box increases, water absorbing part 211 absorbs more moisture;Conversely, when humidity decreases, the moisture in water absorbing part 211 will slowly evaporate, and the base rod 22 is communicated with measurement cavity 21 and part extends outside the box 10, on the one hand, the base rod 22 plays a structural support role, and ensures the stability of the position of measurement cavity 21 in the box 10;On the other hand, the part of base rod 22 extending outside the box 10 is convenient for the connection of some auxiliary components or external equipment, and the humidity measuring piece 23 in measurement cavity 21 converts the change of humidity physical quantity measured into electrical signal for subsequent processing.The control piece is connected with the humidity measuring piece 23, and the control piece is used to control the spray flow of the spray inlet 11, and the control piece is electrically connected with the humidity measuring piece 23 through line, and real-time humidity measurement data from the humidity measuring piece 23 is received.The control piece accurately controls the spray flow of the spray inlet 11 according to the humidity data measured by the humidity measuring piece 23, to realize the real-time regulation of the humidity in the box 10.If it is detected that humidity is low, the control piece increases the spray flow of the spray inlet 11, so that more water vapor enters the box 10;If humidity is high, then reduce the spray flow of the spray inlet 11, so as to maintain the constant humidity in the box 10.

[0030] The constant humidity device provided by the utility model realizes accurate maintenance of the humidity in the box body 10 in the set range through real-time accurate monitoring of the humidity in the box by the measuring assembly 20 and efficient regulation and control of the control piece based on measurement feedback. Compared with the existing constant humidity box using indirect measurement, the intermediate link error is reduced, the measurement accuracy is ensured, and periodical calibration is not needed; and the measuring cavity 21 is located inside the box body 10, the water absorption piece 211 wraps the measuring cavity 21, the anti-interference capability is strong, and the stability and reliability of the humidity data are ensured. The control piece and the humidity measuring piece 23 are connected to constitute a feedback system, rapid and accurate regulation and control of the spray inlet 11 flow are realized, different humidity change rate requirements are met, various spray sources can be adapted, the application range is widened, meanwhile, the box body 10 serves as the overall shell of the device, prevents a large amount of dust, particulate matter and other pollutants from directly entering the internal measuring assembly 20 area, effectively blocks large-size pollutants such as metal scraps and fiber fluff in the workshop production, and avoids that the pollutants easily interfere to cause distortion of the measurement result.

[0031] As a further improvement of the utility model, the constant humidity device further comprises a position adjusting piece 30, the position adjusting piece 30 is sleeved on the base rod 22, the position adjusting piece 30 abuts against the box body 10, and the position adjusting piece 30 is used for adjusting the position of the measuring cavity 21 in the box body 10. The position adjusting piece 30 is sleeved on the base rod 22 and tightly abuts against the box body 10, in actual application, a threaded structure can be adopted, the inner wall of the position adjusting piece 30 is provided with internal threads matched with the external threads of the base rod 22, by rotating the position adjusting piece 30, the position adjusting piece 30 can be axially moved along the base rod 22, by arranging the position adjusting piece 30, the position of the measuring cavity 21 in the box body 10 can be flexibly and accurately adjusted, the measuring cavity 21 can avoid the local temperature and humidity abnormal area possibly existing in the box body 10, for example, the high humidity sudden change area close to the spray inlet 11, the measuring cavity 21 can be accurately positioned to the area with uniform temperature and humidity distribution and representative in the box body 10, the accuracy of the humidity data collected by the humidity measuring piece 23 is ensured, and reliable basis is provided for subsequent spray flow regulation and control. The existence of the position adjusting piece 30 can also calibrate and reset the position of the measuring cavity 21 regularly, the measuring cavity 21 can always be in the best measuring position, thereby maintaining the stability and reliability of the humidity measurement, and ensuring that the device continuously and efficiently operates.

[0032] As a further improvement of the utility model, the measuring cavity 21 is provided with a measuring water absorption part 212 at one end away from the base rod 22, the humidity measuring part 23 comprises a detection end 231 and a data transmission end 232, the detection end 231 is arranged towards the measuring water absorption part 212, and the data transmission end 232 is connected to the control part through the base rod 22. By arranging the measuring water absorption part 212 at one end of the measuring cavity 21 away from the base rod 22, the design of the measuring water absorption part 212 ensures that the humidity inside the cavity is consistent with the overall humidity of the box body 10, creates conditions for accurate measurement, the detection end 231 of the humidity measuring part 23 is arranged towards the measuring water absorption part 212, ensuring the sensitivity of the humidity measurement of the humidity measuring part 23, the arrangement of the measuring water absorption part 212 ensures that the measuring cavity 21 can obtain real humidity information in the box body 10 in real time and accurately, avoiding measurement errors caused by local air stagnation or poor circulation, and the data connection between the humidity measuring part 23 and the control part is realized through the base rod 22, on the one hand, the mechanical stability of the base rod 22 ensures that the data transmission process is not affected by external factors such as vibration and electromagnetic interference, ensuring the integrity and accuracy of the data; on the other hand, compared with external wiring, the built-in transmission mode reduces the risk of line exposure and reduces the probability of data transmission failure caused by line aging and damage. The humidity measuring part 23 is arranged inside the measuring cavity 21 and connected to the control part through the base rod 22, so that the structure of the device is more compact. The installation space of the device is saved, and the overall usability of the device is improved.

[0033] As a further improvement of the utility model, the constant humidity device further comprises a spray output pipeline (not shown in the figure), the spray output pipeline is connected to an external liquid supply device, and the spray output pipeline is plug-in connected with the spray inlet 11. The spray output pipeline connected to the external liquid supply device introduces an external water vapor source for the constant humidity device. In some embodiments, the external liquid supply device can be a precision humidifier, a water vapor generating device or a liquid storage container. The spray output pipeline is plug-in connected with the spray inlet 11, ensuring that the connection is simple and efficient. When connection is needed, the spray output pipeline is inserted into the spray inlet 11 to achieve tight connection. When the external liquid supply device needs to be replaced, the pipeline needs to be maintained or different humidity sources need to be switched, the spray output pipeline only needs to be pulled out, which is convenient and fast, and does not need to rely on complex tools. The plug-in connected spray output pipeline enables the constant humidity device to easily adapt to different types of external liquid supply devices, greatly expanding the application range of the device and meeting diversified humidity control needs.

[0034] As a further improvement of the utility model, the water absorbing part 211 is covered on the outside of the measuring cavity 21 in a spiral winding mode. By covering the water absorbing part 211 on the outside of the measuring cavity 21 in a spiral winding mode, the spiral winding water absorbing part 211 maximizes the coverage area of the water absorbing part 211 without increasing the volume of the device, increases the contact area with the air in the box, facilitates the flow of air on the surface of the water absorbing part 211 and the diffusion of water vapor, and accelerates the adsorption and release speed of water vapor, improves the water vapor exchange efficiency, so that the constant humidity device can respond to the change of humidity in the box faster, adjust the spray flow in time, shorten the humidity adjustment time, and improve the working efficiency of the device.

[0035] As a further improvement of the utility model, the water absorbing part 211 is gauze. The gauze has excellent water absorption performance, can quickly absorb water vapor in the air, and the water evaporation process is also relatively stable when the humidity decreases. This feature enables the gauze to respond to changes in humidity in the box in a timely manner, providing accurate humidity change signals for the humidity measuring element 23. At the same time, gauze is inexpensive and easy to obtain. Using gauze as the water absorbing part 211 can greatly reduce the manufacturing cost of the constant humidity device and effectively control the equipment cost.

[0036] As a further improvement of the utility model, the humidity measuring element 23 is a capacitive sensor. By setting the humidity measuring element 23 as a capacitive sensor, the response speed of the capacitive sensor is faster, which can respond to humidity changes in a short time. When the humidity in the box changes, the humidity data can be quickly converted into an electrical signal and transmitted to the control element, so that the control element can adjust the spray flow in time, quickly restore the stability of the humidity in the box, and help to improve the working efficiency of the constant humidity device and reduce the influence of humidity fluctuations on the tested objects.

[0037] As a further improvement of the utility model, the spray output pipeline is provided with a flow regulating valve, and the flow regulating valve is connected with the control member. The flow regulating valve is installed on the spray output pipeline, the flow of the spray output pipeline is adjusted by changing the flow passage area of the spray output pipeline, the flow regulating valve is connected with the control member, and when the humidity measuring member 23 detects that the humidity in the box changes, the humidity signal is converted into an electric signal and transmitted to the control member. According to the deviation between the preset humidity value and the actual measured value, the control member sends a corresponding control signal to the flow regulating valve, and the flow regulating valve can accurately adjust the spray flow according to the instruction of the control member, so that the humidity in the box can quickly and accurately reach and remain in the preset value range. Compared with the traditional fixed flow spray mode, this adjustable flow control can better cope with different humidity changes, whether it is a slight humidity fluctuation or a large amplitude humidity deviation, which can be effectively adjusted by accurately adjusting the spray flow, greatly improving the accuracy of humidity control.

[0038] As a further improvement of the utility model, the constant humidity device further comprises a sealing member 31, the sealing member 31 is arranged between the position adjusting member 30 and the box body 10, and the sealing member 31 is used for sealing the box body 10. The sealing member 31 is installed between the position adjusting member 30 and the box body 10, the position adjusting member 30 is sleeved on the base rod 22 and abuts against the box body 10, the position of the measuring cavity 21 in the box body 10 is adjusted, when the position adjusting member 30 and the box body 10 are assembled, the sealing member 31 is extruded and deformed, is filled between the two, a sealing barrier is formed, air, water vapor and dust and other pollutants in the outside are effectively prevented from entering the inside of the box body 10, and it is ensured that the inside of the box body 10 is always in a relatively closed and stable environment.

[0039] As a further improvement of the utility model, the outer surface of the box body 10 is coated with a water-proof material. By coating the outer surface of the box body 10 with a water-proof material, the outside moisture is effectively prevented from entering the inside of the box body 10, the interference of the outside moisture on the humidity in the box is reduced, and the stability of the humidity in the box is maintained. The water-proof performance of the box body 10 can ensure that the humidity in the box is always in a preset stable range, providing reliable environmental conditions for the production and storage of products. At the same time, the constant humidity device can also work normally in a harsh environment with high humidity or liquid splashing, improving the environmental adaptability and reliability of the constant humidity device.

[0040] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0041] The above embodiment only expresses the preferred implementation of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A constant humidity device, characterized by, The constant humidity device comprises: a box body, a spray inlet being arranged on the box body and used to introduce spray into the box body; a measuring assembly, the measuring assembly comprising a measuring cavity and a base rod, the measuring cavity being in communication with the base rod, the base rod being partially exposed outside the box body, the measuring cavity being arranged inside the box body, a water absorbing member being arranged outside the measuring cavity, and a humidity measuring member being arranged inside the measuring cavity; a control member, the control member being connected with the humidity measuring member and used to control the spray flow of the spray inlet.

2. The constant-humidity device according to claim 1, characterized by The constant humidity device further comprises a position adjusting member, the position adjusting member being sleeved on the base rod, the position adjusting member being in abutment with the box body, and the position adjusting member being used to adjust the position of the measuring cavity in the box body.

3. The constant-humidity device of claim 1, wherein The measuring cavity is provided with a measuring opening at one end away from the base rod, the humidity measuring member comprises a detection end and a data transmission end, the detection end being arranged towards the measuring opening, and the data transmission end being connected with the control member through the base rod.

4. The constant-humidity device of claim 1, wherein The constant humidity device further comprises a spray output pipeline, the spray output pipeline being in communication with an external liquid supply device, and the spray output pipeline being in plug-in connection with the spray inlet.

5. The constant-humidity device of claim 1, wherein The water absorbing member is arranged outside the measuring cavity in a spiral winding manner.

6. The constant-humidity device of claim 3, wherein The water absorbing member is gauze.

7. The constant-humidity device of claim 1, wherein The humidity measuring member is a capacitive sensor.

8. The constant-humidity device of claim 4, wherein, The spray output pipeline is provided with a flow adjusting valve, the flow adjusting valve being connected with the control member.

9. The constant-humidity device of claim 2, wherein, The constant humidity device further comprises a sealing member, the sealing member being arranged between the position adjusting member and the box body, and the sealing member being used to seal the box body.

10. The constant-humidity device of claim 1, wherein, The outer surface of the box body is coated with a water-proof material.

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