A high-efficiency internal temperature and humidity monitoring constant temperature and humidity test chamber

Abstract

This application discloses a high-efficiency temperature and humidity monitoring constant temperature and humidity test chamber, including a chamber body, a door, a temperature control unit, and a humidity control unit. The chamber body has an inner cavity, in which a shelf, a first temperature sensor, and a first humidity sensor are installed. The door is hinged to the chamber body and has a detection unit at the door, which includes a second temperature sensor and a second humidity sensor. This constant temperature and humidity test chamber, by setting up the detection unit, can independently perform detection in addition to the multiple first temperature sensors and multiple humidity sensors installed inside the chamber. This avoids the situation where the internal temperature and humidity are out of control without being known when the integrated temperature and humidity sensors in the constant temperature and humidity test chamber malfunction or when the system program malfunctions. The second temperature sensor and the second humidity sensor at the detection unit can perform independent detection, thus making the detection more efficient.

Description

Technical Field

[0001] This invention relates to the field of constant temperature and humidity test chamber technology, and more specifically, to a constant temperature and humidity test chamber with efficient internal temperature and humidity monitoring. Background Technology

[0002] A constant temperature and humidity test chamber is a device used to simulate experiments and tests under various environmental conditions. It can control the temperature and humidity inside the chamber, maintaining them at a stable level to meet the needs of different experimental conditions. Constant temperature and humidity test chambers are widely used in industries such as electronics, electrical engineering, instrumentation, plastics, metals, food, chemicals, and textiles to test the performance and stability of products under different temperature and humidity conditions. They provide reliable experimental data for product development and quality control, and are of great significance for improving product quality and technical levels.

[0003] Existing constant temperature and humidity test chambers typically integrate temperature and humidity sensors to monitor and control the temperature and humidity levels within the chamber. However, sensor malfunctions or system program errors can lead to uncontrolled temperature and humidity within the chamber. When either sensor fails, the chamber cannot accurately monitor and control the temperature and humidity levels, potentially causing deviations from preset values ​​and failing to provide stable environmental conditions for testing. For example, a damaged temperature sensor may prevent the chamber from sensing the actual temperature, resulting in excessively high or low temperatures that fail to meet testing requirements. Similarly, a faulty humidity sensor can cause humidity levels to deviate from the target range, affecting the accuracy of test results. Furthermore, system program errors can also lead to uncontrolled temperature and humidity within the chamber, preventing the correct interpretation of sensor data or the execution of corresponding control operations, resulting in unstable temperature and humidity levels. In such cases, users may not immediately recognize the uncontrolled temperature and humidity within the chamber, potentially negatively impacting the reliability and accuracy of test results and even damaging the tested items. Summary of the Invention

[0004] This invention aims to overcome the shortcomings of existing technologies and provide a high-efficiency internal temperature and humidity monitoring constant temperature and humidity test chamber.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a constant temperature and humidity test chamber, comprising a chamber body, a chamber door, a temperature control unit, and a humidity control unit. The chamber body has an inner cavity, in which a placement rack, a first temperature sensor, and a first humidity sensor are installed. The chamber door is hinged to the chamber body, and a detection unit is provided at the chamber door. The detection unit includes a second temperature sensor and a second humidity sensor.

[0006] Furthermore, the detection unit includes a microprocessor.

[0007] Furthermore, there are multiple first temperature sensors and multiple first humidity sensors.

[0008] This allows for more accurate detection of temperature and humidity inside the cavity.

[0009] Furthermore, the door has an observation window and a handle; the body of the box is equipped with a display screen and multiple physical buttons.

[0010] The observation window facilitates observation of the contents of the enclosure, the handle makes it easy to open and close the enclosure door, the display screen makes it easy to display various data information, and the physical buttons make it easy to operate.

[0011] Furthermore, the enclosure door has two ventilation slots and a connecting channel connecting the two ventilation slots, and one of the ventilation slots has a fan unit; the enclosure door also has a connecting hole communicating with the connecting channel, a first mounting slot communicating with the connecting hole, and a second mounting slot communicating with the first mounting slot; the detection unit includes a first mounting plate that can be inserted into the first mounting slot, a second mounting plate that is fixedly connected to the first mounting plate and can be inserted into the second mounting slot, and a mounting bracket connected to the first mounting plate, wherein the second temperature sensor and the second humidity sensor are installed on the mounting bracket.

[0012] This mounting bracket facilitates the installation of a second temperature sensor and a second humidity sensor.

[0013] Furthermore, it also includes a shielding unit, which comprises a rotating ring and two baffles. Each baffle is connected to the rotating ring by a connecting rod. The two baffles can respectively shield two ventilation slots. A first rotating shaft is installed at the door, and the rotating ring is fixedly connected to the first rotating shaft. One end of the first rotating shaft extends into the communicating hole, and the end of the first rotating shaft extending into the communicating hole has a groove with a regular hexagonal cross-section. The mounting bracket includes two horizontal plates, a vertical plate connecting the two horizontal plates, and a connecting block connecting the two horizontal plates. The second temperature sensor and the second humidity sensor are both installed on... At the connecting block, a rotary cylinder is installed on the first mounting plate. The rotary cylinder drives a second rotating shaft that passes through the vertical plate and the connecting block. A bearing is installed between the second rotating shaft and the vertical plate. The connecting block has a through hole through which the second rotating shaft passes. A driving block with a regular hexagonal cross-section is fixed at the second rotating shaft. The door has two limiting units, which correspond to two baffles respectively. The limiting unit includes a first arc-shaped fixing block, a second arc-shaped fixing block, and a cover plate connecting the first arc-shaped fixing block and the second arc-shaped fixing block. The second arc-shaped fixing block has an arc-shaped through groove through which the connecting rod passes.

[0014] This allows the shielding unit to open and close, thereby opening and blocking the two ventilation slots.

[0015] Furthermore, the second mounting plate and the second mounting groove are fixed together by bolts; the first mounting plate has multiple limiting holes, and the first mounting groove has multiple limiting rods that cooperate with the limiting holes.

[0016] This allows for more precise installation and positioning of the detection unit.

[0017] Furthermore, the connecting hole includes two cuboid holes and a cylindrical hole connecting the two cuboid holes.

[0018] Furthermore, the connecting block includes two cuboid blocks and a cylindrical block connecting the two cuboid blocks.

[0019] This allows the shape of the connecting block to match that of the connecting hole.

[0020] Furthermore, the connecting block is made of rubber material.

[0021] Thus, the connecting block is passed through by the second rotating shaft, which can rotate relative to the connecting block, and there is still good sealing between the second rotating shaft and the connecting block.

[0022] Furthermore, a pressure sensor is installed at the connecting block; a display unit is installed at the second mounting plate.

[0023] This allows for the detection of air pressure within the connection channel and provides a clear display of temperature, humidity, and air pressure values.

[0024] Furthermore, the cover plate has a notch, and the notch has a rotating plate hinged to the cover plate via an elastic reset hinge component. When there is no external force, the rotating plate is parallel to the door. The rotating plate has a notch, and a wedge block is installed at the baffle. Two mounting seats are installed at the connecting block, and a light emitter and a light intensity sensor are installed at the mounting seats. A reflector is installed on the surface of the rotating plate. The top of the upper ventilation slot and the bottom of the lower ventilation slot have reflective surfaces with reflective coatings. The angle between the reflective surfaces and the horizontal plane is 45 degrees.

[0025] Therefore, based on the detection of the light emitter and the light intensity sensor, it can be determined whether the rotating plate is normally abutted and rotated by the wedge block, and whether the blocking baffle is properly reset.

[0026] Furthermore, when the rotary cylinder is in the first state, the connecting rod is in a vertical state, the rotating plate is parallel to the box door, and the wedge block is located in the notch; when the rotary cylinder is in the second state, the wedge block abuts against the rotating plate, so that the angle between the rotating plate and the box door is 45 degrees.

[0027] Therefore, when the rotary cylinder is in the second state, the rotary cylinder drives the blocking unit to open, and under the action of the wedge block, the two rotating plates open.

[0028] Furthermore, the rotating plate has a positioning groove; the first arc-shaped fixing block has a first rubber positioning block and a second rubber positioning block; when the rotating cylinder is in the first state, the first rubber positioning block is embedded in the positioning groove; when the rotating cylinder is in the second state, the second rubber positioning block is embedded in the positioning groove.

[0029] Furthermore, the cross-sections of the positioning groove, the first rubber positioning block, and the second rubber positioning block are all semi-circular.

[0030] When the rotary cylinder is in the first or second state, the baffle is limited by the first rubber positioning block or the second rubber limiting block, thus making the position of the baffle more stable. However, under the drive of the rotary cylinder, the first rubber limiting block or the second rubber limiting block can disengage from the positioning groove.

[0031] Beneficial effects:

[0032] 1. The constant temperature and humidity test chamber of this application can perform independent detection in addition to the multiple first temperature sensors and multiple humidity sensors installed inside the chamber by setting up a detection unit; thereby avoiding the situation where the internal temperature and humidity are out of control without being known when the integrated temperature and humidity sensors of the constant temperature and humidity test chamber malfunction or the system program malfunctions. The second temperature sensor and the second humidity sensor at the detection unit can perform independent detection, thereby making the detection more efficient.

[0033] The constant temperature and humidity test chamber of this application can drive the shielding unit to open by rotating the cylinder, and activate the fan unit to make the temperature and humidity in the connection channel consistent with the temperature and humidity in the test chamber. When the air pressure detected by the air pressure sensor is stable, the detection unit performs temperature and humidity detection, and the detection results can be directly displayed on the display unit.

[0034] When the temperature and humidity monitoring requirements of the constant temperature and humidity test chamber in this application are low, the detection unit can be omitted and a cover can be used instead. Thus, the detection unit can be modularly designed and can be used selectively, making it more convenient to use. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the test chamber;

[0036] Figure 2 A schematic diagram of the gearbox door when the rotary cylinder is in its first state;

[0037] Figure 2A for Figure 2AEnlarged view of the region;

[0038] Figure 3 A schematic diagram of the gearbox door when the rotary cylinder is in the second state;

[0039] Figure 3A for Figure 3A Enlarged view of the region;

[0040] Figure 4 for Figure 3 Another angle diagram;

[0041] Figure 4A for Figure 4A Enlarged view of the region;

[0042] Figure 5 This is a schematic diagram showing the separation of the detection unit from the enclosure door;

[0043] Figure 5 A is Figure 5A Enlarged view of the region;

[0044] Figure 6 for Figure 5 Another angle diagram;

[0045] Figure 6A for Figure 6A Enlarged view of the region;

[0046] Figure 6B for Figure 6B Enlarged view of the region;

[0047] Figure 7 This is a schematic diagram of the occlusion unit;

[0048] Figure 8 This is a schematic diagram of the box door and lid.

[0049] Explanation of reference numerals in the attached drawings: 1. Cabinet; 1.1 Display screen; 1.2 Physical buttons; 2. Cabinet door; 2.1 Observation window; 2.2 Handle; 2.3 Ventilation slot; 2.3.1 Reflective surface; 2.4 Fan unit; 2.5 Connecting hole; 2.5.1 Recessed part; 2.6 First mounting slot; 2.6.1 Limiting rod; 2.7 Second mounting slot; 2.8 First rotating shaft; 3.1 Second temperature sensor; 3.2 Second humidity sensor; 3.3 First mounting plate; 3.4 Second mounting plate; 3.4.1 Bolt; 3.4.2 Display unit; 3.5 Horizontal plate; 3.6 Vertical plate; 3.7 Connecting block; 3.7.1 Barometric pressure sensor; 3.7.2 Light emitter; 3.7.3 Light intensity sensor; 4.1 Rotating ring; 4.2 Baffle; 4.3 Connecting rod; 4.4 Wedge block; 5.1 Second rotating shaft; 5.2 Bearing; 5.3 Drive block; 6.1 First arc-shaped fixing block; 6.2 Second arc-shaped fixing block; 6.2.1 Arc-shaped through slot; 6.3 Cover plate; 6.4 Rotating plate; 6.4.1 Notch; 6.4.2 Positioning slot; 6.5 Reflector; 7.1 Plug; 7.2 First cover plate; 7.3 Second cover plate. Detailed Implementation

[0050] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0051] This invention provides, for example Figure 1-8 The diagram shows an internal temperature and humidity high-efficiency monitoring constant temperature and humidity test chamber, including a chamber body 1, a chamber door 2, a temperature control unit and a humidity control unit. The chamber body 1 has an inner cavity, in which a shelf, a first temperature sensor and a first humidity sensor are installed. The chamber door 2 is hinged to the chamber body 1, and a detection unit is provided at the chamber door 2. The detection unit includes a second temperature sensor 3.1 and a second humidity sensor 3.2.

[0052] The door 2 has an observation window 2.1 and a handle 2.2; the body 1 is equipped with a display screen 1.1 and multiple physical buttons 1.2; the door 2 has two ventilation slots 2.3 and a connecting channel connecting the two ventilation slots 2.3, and one of the ventilation slots 2.3 has a fan unit 2.4; the door 2 also has a connecting hole 2.5 communicating with the connecting channel, a first mounting slot 2.6 communicating with the connecting hole 2.5, and a second mounting slot 2.7 communicating with the first mounting slot 2.6; the detection unit includes a first mounting plate 3.3 that can be inserted into the first mounting slot 2.6, a second mounting plate 3.4 that is fixedly connected to the first mounting plate 3.3 and can be inserted into the second mounting slot 2.7, and a mounting bracket connected to the first mounting plate 3.3, wherein the mounting bracket is equipped with the second temperature sensor 3.1 and the second humidity sensor 3.2.

[0053] The constant temperature and humidity test chamber also includes a shielding unit, which comprises a rotating ring 4.1 and two baffles 4.2. A connecting rod 4.3 connects each baffle 4.2 to the rotating ring 4.1. The two baffles 4.2 can respectively shield the two ventilation slots 2.3. A first rotating shaft 2.8 is installed at the chamber door 2. The rotating ring 4.1 is fixedly connected to the first rotating shaft 2.8. One end of the first rotating shaft 2.8 extends into the connecting hole 2.5, and the end of the first rotating shaft 2.8 extending into the connecting hole 2.5 has a groove with a regular hexagonal cross-section. Part 2.5.1; The mounting bracket includes two horizontal plates 3.5, a vertical plate 3.6 connecting the two horizontal plates 3.5, and a connecting block 3.7 connecting the two horizontal plates 3.5. The second temperature sensor 3.1 and the second humidity sensor 3.2 are both mounted on the connecting block 3.7. A rotary cylinder is mounted on the first mounting plate 3.3. The rotary cylinder drives a second rotating shaft 5.1 that passes through the vertical plate 3.6 and the connecting block 3.7. A bearing 5.2 is installed between the second rotating shaft 5.1 and the vertical plate 3.6. The connecting block 3.7 is supported by the second rotating shaft. 5.1 Through the perforation, a driving block 5.3 with a regular hexagonal cross-section is fixed at the second rotating shaft 5.1; the box door 2 has two limiting units, which correspond to two baffles 4.2 respectively. The limiting unit includes a first arc-shaped fixing block 6.1, a second arc-shaped fixing block 6.2, and a cover plate 6.3 connecting the first arc-shaped fixing block 6.1 and the second arc-shaped fixing block 6.2. The second arc-shaped fixing block 6.2 has an arc-shaped through groove 6.2.1 through which the connecting rod 4.3 passes; the second mounting plate 3.4 and the second mounting groove 2.7 are connected by... Bolt 3.4.1 is used for fixing; the first mounting plate 3.3 has multiple limiting holes, and the first mounting groove 2.6 has multiple limiting rods 2.6.1 that cooperate with the limiting holes; the connecting hole 2.5 includes two cuboid holes and a cylindrical hole connecting the two cuboid holes; the connecting block 3.7 includes two cuboid blocks and a cylindrical block connecting the two cuboid blocks; the connecting block 3.7 is made of rubber material; a pressure sensor 3.7.1 is installed at the connecting block 3.7; a display unit 3.4.2 is installed at the second mounting plate 3.4.

[0054] The cover plate 6.3 has a notch, and a rotating plate 6.4 is hinged to the cover plate 6.3 via an elastic reset hinge component. When there is no external force, the rotating plate 6.4 is parallel to the door 2. The rotating plate 6.4 has a notch 6.4.1, and a wedge block 4.4 is installed at the baffle 4.2. Two mounting seats are installed at the connecting block 3.7, and a light emitter 3.7.2 and a light intensity sensor 3.7.3 are installed at the mounting seats. A reflector 6.5 is installed on the surface of the rotating plate 6.4. The top of the upper ventilation slot and the bottom of the lower ventilation slot in the two ventilation slots 2.3 both have reflective surfaces 2.3.1. The reflective surfaces 2.3.1 have a reflective coating, and the angle between the reflective surfaces 2.3.1 and the horizontal plane is 45 degrees. When rotating... When the cylinder is in the first state, the connecting rod 4.3 is in a vertical position, the rotating plate 6.4 is parallel to the door 2, and the wedge block 4.4 is located within the notch 6.4.1. When the rotating cylinder is in the second state, the wedge block 4.4 abuts against the rotating plate 6.4, making the angle between the rotating plate 6.4 and the door 2 45 degrees. The rotating plate 6.4 has a positioning groove 6.4.2. The first arc-shaped fixing block 6.1 has a first rubber positioning block and a second rubber positioning block. When the rotating cylinder is in the first state, the first rubber positioning block is embedded in the positioning groove 6.4.2. When the rotating cylinder is in the second state, the second rubber positioning block is embedded in the positioning groove 6.4.2. The cross-sections of the positioning groove 6.4.2, the first rubber positioning block, and the second rubber positioning block are all semi-circular.

[0055] Working principle: The constant temperature and humidity test chamber of this application can perform independent detection in addition to the multiple first temperature sensors and multiple humidity sensors installed inside the chamber by setting up a detection unit; thereby avoiding the situation where the internal temperature and humidity are out of control without being known when the integrated temperature and humidity sensors of the constant temperature and humidity test chamber malfunction or the system program malfunctions. The second temperature sensor and the second humidity sensor at the detection unit can perform independent detection.

[0056] During testing, a rotary cylinder drives the shielding unit to open (and, under the action of the wedge block, the two rotating plates open), thereby opening the two ventilation slots and activating the fan unit. This ensures that the temperature and humidity within the connection channel are consistent with those inside the test chamber. Once the air pressure sensor stabilizes, temperature and humidity are measured, and the results are directly displayed on the display unit. After testing, the rotary cylinder drives the shielding unit to reset, and the two rotating plates also reset. The rotating plates and baffles together effectively shield the ventilation slots, ensuring a tight seal between the chamber door and the internal cavity and reducing heat transfer at the ventilation slots.

[0057] Furthermore, whether the rotating plate is properly abutted and rotated by the wedge block, and whether the blocking baffle is properly reset, can be determined based on the detection of the light emitter and the light intensity sensor. When properly reset, the light emitted by the light emitter is reflected by the reflective surface and the reflector and detected by the light intensity sensor, resulting in a larger measurement value. When the rotating plate is abutted and rotated open by the wedge block, the reflector cannot reflect most of the light into the connecting channel for reception by the light intensity sensor, thus reducing the measurement value. The two sets of light emitters and light intensity sensors at the mounting bracket can be detected separately to avoid mutual interference when detected simultaneously.

[0058] In some cases, where temperature and humidity monitoring requirements are not so stringent, a cover can be used instead of a detection unit, such as... Figure 8 As shown, the cover includes a plug that can be inserted into the communicating hole, a first cover plate connected to the plug, and a second cover plate connected to the first cover plate. The first cover plate also has a limiting hole that mates with a limiting rod. The second cover plate is fixedly connected to the second mounting groove by bolts. Thus, the detection unit achieves a modular design, allowing for selective use and convenient replacement of different detection modules.

[0059] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. A high-efficiency internal temperature and humidity monitoring constant temperature and humidity test chamber, characterized in that, The device includes a housing, a door, a temperature control unit, and a humidity control unit. The housing has an inner cavity in which a shelf, a first temperature sensor, and a first humidity sensor are installed. The door is hinged to the housing and has a detection unit at the door, which includes a second temperature sensor and a second humidity sensor. The door has an observation window and a handle; the body of the box is equipped with a display screen and multiple physical buttons. The enclosure door has two ventilation slots and a connecting channel connecting the two ventilation slots. One of the ventilation slots has a fan unit. The enclosure door also has a connecting hole communicating with the connecting channel, a first mounting slot communicating with the connecting hole, and a second mounting slot communicating with the first mounting slot. The detection unit includes a first mounting plate that can be inserted into the first mounting slot, a second mounting plate that is fixedly connected to the first mounting plate and can be inserted into the second mounting slot, and a mounting bracket connected to the first mounting plate. The mounting bracket is equipped with the second temperature sensor and the second humidity sensor. It also includes a shielding unit, which comprises a rotating ring and two baffles. Each baffle is connected to the rotating ring by a connecting rod. The two baffles can respectively shield two ventilation slots. A first rotating shaft is installed at the door, and the rotating ring is fixedly connected to the first rotating shaft. One end of the first rotating shaft extends into the communicating hole, and the end of the first rotating shaft extending into the communicating hole has a groove with a regular hexagonal cross-section. The mounting bracket includes two horizontal plates, a vertical plate connecting the two horizontal plates, and a connecting block connecting the two horizontal plates. The second temperature sensor and the second humidity sensor are both installed on the connecting block. At the connecting block, a rotary cylinder is installed on the first mounting plate. The rotary cylinder drives a second rotating shaft that passes through the vertical plate and the connecting block. A bearing is installed between the second rotating shaft and the vertical plate. The connecting block has a through hole through which the second rotating shaft passes. A driving block with a regular hexagonal cross-section is fixed at the second rotating shaft. The box door has two limiting units, which correspond to two baffles respectively. The limiting unit includes a first arc-shaped fixing block, a second arc-shaped fixing block, and a cover plate connecting the first arc-shaped fixing block and the second arc-shaped fixing block. The second arc-shaped fixing block has an arc-shaped through groove through which the connecting rod passes. The cover plate has a notch, and the notch has a rotating plate hinged to the cover plate by an elastic reset hinge component. When there is no external force, the rotating plate is parallel to the box door. The rotating plate has a notch, and a wedge block is installed on the baffle. When the rotary cylinder is in the first state, the connecting rod is in the vertical state, the rotating plate is parallel to the box door, and the wedge block is located in the notch. When the rotary cylinder is in the second state, the wedge block abuts against the rotating plate, so that the angle between the rotating plate and the box door is 45 degrees.

2. The high-efficiency internal temperature and humidity monitoring constant temperature and humidity test chamber according to claim 1, characterized in that, The second mounting plate and the second mounting groove are fixed together by bolts; the first mounting plate has multiple limiting holes, and the first mounting groove has multiple limiting rods that cooperate with the limiting holes.

3. The high-efficiency internal temperature and humidity monitoring constant temperature and humidity test chamber according to claim 1, characterized in that, The connecting hole includes two cuboid holes and a cylindrical hole connecting the two cuboid holes; the connecting block includes two cuboid blocks and a cylindrical block connecting the two cuboid blocks; the connecting block is made of rubber material.

4. The high-efficiency internal temperature and humidity monitoring constant temperature and humidity test chamber according to claim 1, characterized in that, A pressure sensor is installed at the connecting block; a display unit is installed at the second mounting plate.

5. The high-efficiency internal temperature and humidity monitoring constant temperature and humidity test chamber according to claim 1, characterized in that, Two mounting bases are installed at the connecting block. A light emitter and a light intensity sensor are installed at the mounting bases. A reflector is installed on the surface of the rotating plate. The top of the upper ventilation slot and the bottom of the lower ventilation slot have reflective surfaces with reflective coatings. The angle between the reflective surfaces and the horizontal plane is 45 degrees.

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