A multifunctional thermal test experiment box suitable for laboratory scene

Abstract

The utility model provides a kind of multifunctional heat test experiment box suitable for laboratory scene, it is related to experimental box technical field, including base, inner shell, shell, heater, sealing baffle and fan assembly, inner shell is fixedly connected in base, shell is detachably connected in base, inner shell is located in shell, and heat insulation cavity is arranged between shell and inner shell;First air vent and second air vent are opened in inner shell side wall, and first air vent and second air vent are oppositely arranged;First air vent and second air vent are used for detachably connecting sealing baffle or fan assembly.The utility model's experimental box is detachably connected in base by shell, and first air vent and second air vent are used for detachably connecting sealing baffle or fan assembly, can satisfy two assembly states, two assembly states correspond two different functions, and different working conditions of different heat test objects are simulated conveniently.

Description

Technical Field

[0001] This utility model relates to the field of experimental chamber technology, and in particular to a multifunctional thermal testing experimental chamber adapted to laboratory scenarios. Background Technology

[0002] During thermal testing, constructing a test environment that closely matches the target operating scenario is a prerequisite for ensuring the validity of test data. It is worth noting that the application environments of electronic devices exhibit significant differences across various scenarios: some products need to adapt to outdoor environments with strong airflow disturbances, while others operate continuously in indoor, calm conditions; seasonal temperature fluctuations also need to be considered when conducting comprehensive product verification to cover a wide range of temperature conditions. Traditional constant temperature and humidity chambers, while capable of simulating a wide temperature range and circulating internal hot air, cannot simultaneously simulate ambient temperature under constant temperature and windless conditions, nor can they flexibly switch between natural heat dissipation and forced air cooling. Therefore, they are ill-suited to the diverse testing needs of laboratories simulating different types of electronic devices in various scenarios. Utility Model Content

[0003] This invention provides a multifunctional thermal testing chamber adapted to laboratory settings, which solves the problem in the prior art that it is impossible to simultaneously simulate ambient temperature under constant temperature and windless conditions and achieve flexible switching between natural heat dissipation and forced air cooling.

[0004] This utility model provides a multifunctional thermal testing chamber adapted to laboratory scenarios, including a base, inner shell, outer shell, heater, sealing baffle and fan assembly; The inner shell is fixedly connected to the base, and the inner wall of the inner shell and the base form an experimental cavity, and the heater is installed in the experimental cavity; The outer shell is detachably connected to the base, the inner shell is located inside the outer shell, and a heat insulation cavity is provided between the outer shell and the inner shell; The inner shell sidewall is provided with a first ventilation opening and a second ventilation opening, with the first ventilation opening and the second ventilation opening being arranged opposite to each other. The first vent and the second vent are used for detachably connecting a sealing baffle or a fan assembly. The fan assembly includes a cooling fan and a ventilation plate. The ventilation plate has multiple ventilation holes. The cooling fan is used to connect to the first vent, and the ventilation plate is used to connect to the second vent.

[0005] Furthermore, it also includes a shelf, and a support protrusion is fixedly connected to the inner wall of the inner shell, and the shelf is placed on the support protrusion.

[0006] Furthermore, at least two heaters are provided, and the heaters are respectively located on the upper and lower sides of the shelf.

[0007] Furthermore, the base has an inlet and outlet, and the inlet and outlet are hinged with opening and closing doors.

[0008] Furthermore, a sealing strip is fixedly connected to the edge of the inlet and outlet, and when the door rotates to close the inlet and outlet, it contacts the sealing strip to form a seal.

[0009] Furthermore, an observation port is provided on the substrate, and a light-transmitting observation plate is fixedly connected to the observation port.

[0010] Furthermore, the ventilation plate includes a main ventilation plate, a slide rail, and a ventilation slide plate. The ventilation plate is detachably connected to the second ventilation opening. The slide rail is fixedly connected to both sides of the main ventilation plate. The ventilation slide plate is inserted into the slide rail. The ventilation holes are distributed on the main ventilation plate and the ventilation slide plate.

[0011] Furthermore, multiple rubber feet are fixedly connected to the bottom of the substrate.

[0012] Furthermore, the cooling fan includes a fan body and a fan connecting plate. The fan connecting plate has multiple heat dissipation holes. The fan body is fixedly connected to the fan connecting plate, and the fan connecting plate is used for detachable connection with the first vent.

[0013] Furthermore, the substrate includes a side plate, a top plate, and a bottom plate, wherein the top plate is fixedly connected to the top of the side plate, and the bottom plate is fixedly connected to the bottom of the side plate; The outer shell is configured as a U-shaped structure, and plug strips are fixedly connected to both sides of the outer shell, with the plug strips protruding inward; The top plate has a insertion slot at one end near the side plate. The insertion slot is located on the side of the top plate and is for the bottom of the insertion strip to be inserted. The top of the insertion strip is fixedly connected to a limiting plate.

[0014] The beneficial effects of this utility model are as follows: 1. The experimental chamber of this utility model can satisfy two assembly states by detachably connecting the outer shell to the base and using the first and second ventilation ports for detachably connecting the sealing baffle or fan assembly. The two assembly states correspond to two different functions, which can facilitate the simulation of different working conditions of different thermal test objects.

[0015] 2. By fixing connecting strips on both sides of the outer shell and opening a connecting groove on the top plate, the connecting strips of the outer shell are slidably installed along the connecting groove, realizing the rapid conversion between the double-layer structure and the single-layer structure.

[0016] 3. The shelf is placed on the support protrusion fixedly connected to the inner wall of the inner shell. The shelf can be pulled out horizontally and can be installed and removed without tools, so that the test piece is located in the middle of the experimental chamber. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the experimental chamber when the present invention is used in the simulated ambient temperature mode.

[0018] Figure 2 This is a schematic diagram showing the connection relationship between the outer shell and the substrate of this utility model.

[0019] Figure 3 This is an exploded view of the experimental chamber during the constant temperature and windless mode of this utility model.

[0020] Figure 4 This is an exploded view of the experimental chamber during the simulated heat dissipation mode of this utility model.

[0021] Figure 5 This is a schematic diagram of the overall structure of the experimental chamber when the present invention is in heat dissipation mode.

[0022] Figure 6 This is a cross-sectional schematic diagram of the experimental chamber in constant temperature and windless mode according to this utility model.

[0023] Figure 7 yes Figure 6 Enlarged diagram of point B in the middle.

[0024] Figure 8 yes Figure 2 Enlarged diagram of point A in the middle.

[0025] Figure label: 1. Outer shell; 2. Supporting protrusion; 3. Connecting strip; 4. Shelf; 5. Inner shell; 51. Fixing strip; 6. Light-transmitting observation plate; 61. High borosilicate glass; 62. Infrared glass; 63. Stepped hole; 7. Base; 71. Side plate; 711. Inlet / outlet; 72. Top plate; 73. Bottom plate; 74. Insulation cavity; 75. Connecting slot; 76. Experimental cavity; 8. Opening door; 9. Limiting plate; 10. Rubber foot pad; 11. Sealing baffle; 12. Heater; 13. Ventilation sliding plate; 131. Ventilation hole; 14. Main ventilation plate; 15. Slide rail; 16. Fan connecting plate; 17. Fan body; 18. Hinge; 19. Door handle; 20. Sealing strip. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The terms "first" and "second" in the specification and claims of this utility model may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] The following is combined Figures 1-8 This invention describes a multifunctional thermal testing chamber adapted for laboratory settings, comprising a base 7, an inner shell 5, an outer shell 1, a heater 12, a sealing baffle 11, and a fan assembly. The inner shell 5 is fixedly connected to the base 7, and its inner wall and the base 7 form an experimental cavity 76, within which the heater 12 is installed. The outer shell 1 is detachably connected to the base 7, and the inner shell 5 is located within the outer shell 1, with a heat insulation cavity 74 provided between the outer shell 1 and the inner shell 5. The inner shell 5 has a first ventilation opening and a second ventilation opening on its side wall, which are positioned opposite each other. The first and second ventilation openings are used for detachable connection of the sealing baffle 11 or the fan assembly. The fan assembly includes a cooling fan and a ventilation plate, with multiple ventilation holes 131 on the ventilation plate. The cooling fan is connected to the first ventilation opening, and the ventilation plate is connected to the second ventilation opening.

[0030] Specifically, such as Figure 1 , Figure 6As shown, the inner shell 5 is fixed to the base 7 by bolts or welding. The inner wall of the inner shell 5 and the inner wall of the base 7 together form an experimental cavity 76, which is used to place the experimental items to be tested. The heater 12 installed in the experimental cavity 76 is used to heat the temperature inside the experimental cavity 76. The outer shell 1 is detachably connected to the base 7 by bolts. The outer shell 1 encloses the inner shell 5. The heat insulation cavity 74 formed between the inner wall of the outer shell 1 and the outer wall of the inner shell 5 is used for heat preservation. The inner shell 5 has a first ventilation port and a second ventilation port on each side. The two ventilation ports can be replaced with sealing baffles 11 or fan assemblies as needed, thereby realizing the integration of simulated ambient temperature and simulated heat dissipation methods on the same housing, while taking into account miniaturization, low cost and high compatibility.

[0031] Specifically, when using the test chamber of this application to simulate ambient temperature in a constant-temperature, windless mode, sealing baffles 11 are installed on both the first and second vents using screws, completely covering and sealing the first and second vents. Then, the outer shell 1 is installed on the base 7 using screws to insulate and seal the experimental chamber 76. A temperature sensor can be installed inside the experimental chamber 76. The test object is placed inside the experimental chamber 76, and the heater 12 heats the experimental chamber 76 to a specified temperature, thereby conducting a constant-temperature, windless mode ambient temperature simulation test.

[0032] When conducting a simulation test of the heat dissipation mode using the test chamber of this application, the outer shell 1 is first disassembled, then the two sealing baffles 11 are removed, and a ventilation plate is installed on the first vent and a cooling fan is installed on the second vent. Alternatively, a cooling fan can be installed on the first vent and a ventilation plate on the second vent. The test object is placed inside the test chamber 76. By turning off the cooling fan, natural heat dissipation without wind can be simulated; by turning on the cooling fan, convection is formed between the cooling fan and the ventilation hole 131, thereby simulating forced air cooling.

[0033] Furthermore, the base 7 includes a side plate 71, a top plate 72, and a bottom plate 73. The top plate 72 is fixedly connected to the top of the side plate 71, and the bottom plate 73 is fixedly connected to the bottom of the side plate 71. The outer shell 1 is configured as a U-shaped structure, and plug-in strips 3 are fixedly connected to both sides of the outer shell 1, with the plug-in strips 3 protruding inward. A plug-in groove 75 is provided at one end of the top plate 72 near the side plate 71. The plug-in groove 75 is located on the side of the top plate 72, and the bottom of the plug-in strip 3 is inserted into the plug-in groove 75. A limiting plate 9 is fixedly connected to the top of the plug-in strip 3.

[0034] Specifically, the base 7 and inner shell 5 are both made of Al5052 aluminum profile, the outer shell 1 is made of SPCC material, and the sealing baffle 11 can be made of the same Al5052 aluminum profile as the base 7 and inner shell 5. The connector strip 3 and the limiting plate 9 are integrally formed with the outer shell 1 and are completed by stamping. Figure 3 , Figure 4 As shown, the base 7, inner shell 5, and outer shell 1 are all designed with a U-shaped structure. Figure 5 , Figure 6 As shown, the inner shell 5 is fixedly connected to the inner side of the base 7. The inner walls of the side plates 71, top plate 72, and bottom plate 73, together with the inner shell 5, form the experimental cavity 76. The edge of the base 7 protrudes from the outer wall of the inner shell 5, as shown. Figure 2 , Figure 8 As shown, a fixing strip 51 is fixedly connected to one end of the inner shell 5 near the side plate 71. The fixing strip 51 is formed by bending outward from the edge of the inner shell 5. The insertion groove 75 is formed by the gap between the fixing strip 51 and the edge of the top plate 72. The insertion groove 75 is located on both sides of the base 7. When installing the outer shell 1, the insertion strips 3 on both sides of the outer shell 1 are inserted into the insertion grooves 75 and then slid downward. The bottom of the outer shell 1 contacts the bottom plate 73, and the limiting plate 9 contacts the top plate 72, realizing the quick installation and positioning of the outer shell 1. Specifically, the insertion strips 3 and the fixing strip 51 can also be connected and fixed by screws to improve the stability of the connection of the outer shell 1.

[0035] Furthermore, it also includes a shelf 4, and a support protrusion 2 is fixedly connected to the inner wall of the inner shell 5, with the shelf 4 placed on the support protrusion 2.

[0036] Specifically, such as Figure 4 , Figure 6 As shown, a support protrusion 2 is pre-set on the inner wall of the inner shell 5, and the shelf 4 is placed directly on it, so that the test piece is suspended in the middle of the experimental cavity 76. The shelf 4 can be pulled out horizontally and can be installed and removed without tools. In a specific embodiment, the support protrusion 2 is formed by stamping from the outside to the inside on the left and right side walls of the inner shell 5. Specifically, multiple support protrusions 2 are stamped inward on both sides of the inner shell 5, evenly distributed along the vertical direction, for the shelf 4 of different heights to be pulled out and placed.

[0037] Furthermore, at least two heaters 12 are provided, with the heaters 12 located on the upper and lower sides of the shelf 4 respectively.

[0038] Specifically, such as Figure 6 As shown, a heater 12 is respectively attached and fixed to the inner wall of the inner shell 5 and the inner wall of the side plate 71 of the base 7 using thermally conductive adhesive. The two heaters 12 are arranged opposite each other and are located on the upper and lower sides of the shelf 4, respectively, to improve the temperature uniformity index. In a specific embodiment, the heater 12 can be a PTC heating plate.

[0039] Furthermore, an inlet / outlet 711 is provided on the base 7, and an opening / closing door 8 is hinged on the inlet / outlet 711.

[0040] Specifically, such as Figure 1 , Figure 4As shown, the inlet / outlet 711 is located on the side panel 71, and the hinged door 8 is hinged to the top of the inlet / outlet 711 via a hinge 18. The inlet / outlet 711 allows for the horizontal pulling of the shelf 4 for taking out and placing the test piece. In an optional embodiment, a door handle 19 is installed on the hinged door 8 via screws.

[0041] Furthermore, a sealing strip 20 is fixedly connected to the edge of the inlet / outlet 711. When the door 8 rotates to close the inlet / outlet 711, it comes into contact with the sealing strip 20 to form a seal.

[0042] Specifically, such as Figure 4 As shown, a sealing strip 20 is fixed to the edge of the inlet / outlet 711. The sealing strip 20 can be fixed to the edge of the inlet / outlet 711 by adhesive. When the door is closed, the sealing strip 20 is pressed to form a reliable seal, increasing the sealing performance of the experimental chamber 76.

[0043] Furthermore, an observation port is provided on the substrate 7, and a light-transmitting observation plate 6 is fixedly connected to the observation port.

[0044] Specifically, such as Figure 5 , Figure 6 As shown, the observation port is located on the top plate 72, and the light-transmitting observation plate 6 is made of glass, thus forming a viewing window.

[0045] In an alternative embodiment, such as Figure 6 , Figure 7 As shown, the light-transmitting observation plate 6 adopts a composite structure of high borosilicate glass 61 and infrared glass 62: the high borosilicate glass 61 with lower cost is the main body, and a stepped hole 63 is designed in the center of it to embed infrared glass 62 that is adapted to the size of the thermal imager lens.

[0046] Furthermore, the ventilation plate includes a main ventilation plate 14, a slide rail 15, and a ventilation slide plate 13. The ventilation plate is detachably connected to the second ventilation opening. The slide rail 15 is fixedly connected to both sides of the main ventilation plate 14. The ventilation slide plate 13 is inserted into the slide rail 15. Ventilation holes 131 are distributed on the main ventilation plate 14 and the ventilation slide plate 13.

[0047] Specifically, such as Figure 4 , Figure 5 As shown, slide rails 15 are fixedly connected to the upper and lower sides of the main ventilation plate 14, and ventilation slide plate 13 is inserted between the two slide rails 15. The main ventilation plate 14 and slide rails 15 are connected by screws to achieve a detachable connection with the inner shell 5. The ventilation slide plate 13 slides along the slide rails 15 to adjust the overlap of the ventilation holes 131 of the two plates, thereby adjusting the opening ratio. In a specific embodiment, the ventilation holes 131 of the main ventilation plate 14 are set as elliptical holes, and the ventilation holes 131 on the ventilation slide plate 13 are set as circular holes.

[0048] Furthermore, multiple rubber feet 10 are fixedly connected to the bottom of the base 7.

[0049] Specifically, such as Figure 1 As shown, the rubber feet 10 have four supports for the base 7. In one specific embodiment, the rubber feet 10 are made of high-temperature resistant rubber, which, in addition to being non-slip, also prevents the high temperature of the experimental chamber from burning the table surface.

[0050] Furthermore, the cooling fan includes a fan body 17 and a fan connecting plate 16. The fan connecting plate 16 has multiple heat dissipation holes. The fan body 17 is fixedly connected to the fan connecting plate 16, and the fan connecting plate 16 is used for detachable connection with the first ventilation port.

[0051] Specifically, such as Figure 4 As shown, the fan body 17 is first fixedly connected to the fan connecting plate 16 to form an assembly, and then detachably connected to the first ventilation port through the fan connecting plate 16; the fan connecting plate 16 has its own heat dissipation holes, forming internal and external airflow channels. The fan assembly is modular, which facilitates quick assembly and disassembly.

[0052] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional thermal testing chamber adapted for laboratory settings, characterized in that: Includes the base, inner shell, outer shell, heater, sealing baffle, and fan assembly; The inner shell is fixedly connected to the base, and the inner wall of the inner shell and the base form an experimental cavity, and the heater is installed in the experimental cavity; The outer shell is detachably connected to the base, the inner shell is located inside the outer shell, and a heat insulation cavity is provided between the outer shell and the inner shell; The inner shell sidewall is provided with a first ventilation opening and a second ventilation opening, with the first ventilation opening and the second ventilation opening being arranged opposite to each other. The first vent and the second vent are used for detachably connecting a sealing baffle or a fan assembly. The fan assembly includes a cooling fan and a ventilation plate. The ventilation plate has multiple ventilation holes. The cooling fan is used to connect to the first vent, and the ventilation plate is used to connect to the second vent.

2. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 1, characterized in that: It also includes a shelf, and a support protrusion is fixedly connected to the inner wall of the inner shell, and the shelf is placed on the support protrusion.

3. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 2, characterized in that: The heater is provided in at least two parts, which are located on the upper and lower sides of the shelf respectively.

4. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 1, characterized in that: The base has an inlet and outlet, and the inlet and outlet are hinged with opening and closing doors.

5. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 4, characterized in that: A sealing strip is fixedly connected to the edge of the inlet and outlet. When the door rotates to close the inlet and outlet, it contacts the sealing strip to form a seal.

6. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 1, characterized in that: An observation port is provided on the substrate, and a light-transmitting observation plate is fixedly connected to the observation port.

7. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 1, characterized in that: The ventilation panel includes a main ventilation panel, a slide rail, and a ventilation slide plate. The ventilation panel is detachably connected to the second ventilation opening. The slide rail is fixedly connected to both sides of the main ventilation panel. The ventilation slide plate is inserted into the slide rail. The ventilation holes are distributed on the main ventilation panel and the ventilation slide plate.

8. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 1, characterized in that: The base is fixedly connected to multiple rubber feet.

9. The multifunctional thermal testing chamber adapted to laboratory scenarios according to claim 1, characterized in that: The cooling fan includes a fan body and a fan connecting plate. The fan connecting plate has multiple heat dissipation holes. The fan body is fixedly connected to the fan connecting plate. The fan connecting plate is used for detachable connection with the first vent.

10. The multifunctional thermal testing chamber adapted for laboratory scenarios according to any one of claims 1-9, characterized in that: The substrate includes a side plate, a top plate, and a bottom plate. The top plate is fixedly connected to the top of the side plate, and the bottom plate is fixedly connected to the bottom of the side plate. The outer shell is configured as a U-shaped structure, and plug strips are fixedly connected to both sides of the outer shell, with the plug strips protruding inward; The top plate has a insertion slot at one end near the side plate. The insertion slot is located on the side of the top plate and is for the bottom of the insertion strip to be inserted. The top of the insertion strip is fixedly connected to a limiting plate.

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