Constant-temperature protection box for laboratory
By introducing a hot air circulation mechanism, a placement mechanism, and a sealing mechanism into the constant temperature protection chamber, the problems of temperature unevenness and heat loss are solved, achieving more efficient temperature control and flexible product placement.
Patent Information
- Application Number
- CN202423148639.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Thermostatic protection chambers suffer from problems such as uneven internal temperature, lack of flexibility, and rapid heat loss during use.
By incorporating a hot air circulation mechanism, a placement mechanism, and a sealing mechanism, uniform temperature and flexible placement are achieved, while heat loss is reduced through the sealing mechanism.
It improves the uniformity of temperature inside the constant temperature protection chamber, increases the flexibility of product placement, and reduces heat loss.
Smart Images
Figure CN223543011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laboratory equipment technology, specifically to a constant temperature protection box for laboratory use. Background Technology
[0002] Laboratory constant temperature protection chambers are used to test and determine whether the parameters and performance of electrical, electronic and other products and materials still meet the predetermined requirements after high-temperature testing and temperature environment changes, so as to provide for product design, qualification and factory inspection.
[0003] Thermostatic protection chambers typically maintain a constant temperature through heating tubes. During heating, heat is emitted from these tubes, leading to uneven heating in some areas initially, followed by uneven heating later, thus affecting the uniformity of the internal temperature. Furthermore, the products being tested vary in size, but the chamber can generally only hold one large product or several smaller products, making it difficult to adjust to different needs and reducing its flexibility. Finally, while the chamber itself is usually insulated, outside air can easily enter through gaps between the chamber and the door, causing rapid heat loss during operation. Utility Model Content
[0004] The purpose of this invention is to provide a laboratory constant temperature protection box to solve the problems mentioned in the background art, such as low internal temperature uniformity, low flexibility, and rapid heat loss when using constant temperature protection boxes.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a laboratory constant temperature protection box, including an insulated box body, a door rotatably connected to the surface of the insulated box body, a control panel installed on the surface of the door, a support mesh plate fixed inside the insulated box body, a temperature monitor installed inside the insulated box body, the input end of the temperature monitor being electrically connected to the output end of the control panel, a hot air circulation mechanism provided on the surface of the insulated box body, the hot air circulation mechanism consisting of a circulation duct and a hot air circulation assembly, a placement mechanism provided inside the insulated box body, the placement mechanism including a placement tray, a rotating column, an insertion column, a base plate, and an insertion hole, and a sealing mechanism provided between the insulated box body and the door, the sealing mechanism including a sealing airbag, a felt strip, and a groove.
[0006] Preferably, a circulating air duct is fixed at the bottom of the insulated box, and a hot air circulation assembly is provided on the surface of the insulated box, with the hot air circulation assembly located above the circulating air duct.
[0007] Preferably, the hot air circulation assembly includes an air outlet duct frame, heating wire, heating frame and blower inside. The air outlet duct frame is fixed at the top of the insulation box, and the heating frame is fixed to the surface of the insulation box by screws. The heating frame is connected to the air outlet duct frame.
[0008] Preferably, an electric heating wire is installed inside the heating frame, and the input end of the electric heating wire is electrically connected to the output end of the control panel.
[0009] Preferably, a blower is installed on one side of the heating frame, one end of the blower extends into the interior of the heating frame through a pipe, and the other end of the blower is connected to a circulating air duct through a pipe.
[0010] Preferably, a base plate is placed on the surface of the supporting mesh plate, and a rotating column is rotatably connected at the center of the base plate.
[0011] Preferably, the interior of the insulated box is provided with equally spaced placement trays, the center of which is fixedly connected to the surface of the rotating column, and the central axis of the placement tray coincides with the central axis of the rotating column.
[0012] Preferably, each of the chassis has a fixed post at its bottom, and each of the support mesh plates has a hole on its surface, with the hole and the post being inserted into each other.
[0013] Preferably, a felt strip is adhered to the edge of the door surface, and when the door is closed, the surface of the felt strip is in close contact with the surface of the insulated box.
[0014] Preferably, a groove is provided at the edge of the surface of the insulated box. The groove has a U-shaped structure. A sealing airbag is adhered to the surface of the box door. The sealing airbag is located inside the felt strip. When the box door is closed, the sealing airbag is squeezed into the groove and fits tightly against the inner wall of the groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are: the laboratory constant temperature protection box not only improves the uniformity of the internal temperature during use and the flexibility of placing products in the constant temperature protection box, but also reduces the heat loss during use.
[0016] 1. Equipped with a hot air circulation mechanism, the heating wire and blower are controlled via a control panel. The heating wire heats the inside of the heating frame, and the hot air is guided to the air outlet frame, which then heats the inside of the insulation box. A temperature monitor tracks the temperature inside the insulation box, maintaining a constant temperature. Simultaneously, the blower exhausts hot air from the bottom of the insulation box through the circulation duct, returning it to the heating frame. This circulating hot air within the insulation box ensures more even heating, achieving the circulating heating function of the constant temperature protection box and improving the uniformity of the internal temperature during use.
[0017] 2. With the addition of a placement mechanism, when smaller experimental products need to be placed, the placement tray can be placed inside the insulated chamber, and the insert pin can be inserted into the insertion hole to position the placement tray. Then, multiple smaller experimental products can be placed on the surface of the placement tray. The placement tray can be rotated under the action of the rotating pin, which facilitates the placement of products and realizes the flexible product placement function of the constant temperature protection chamber, thereby improving the flexibility of product placement in the constant temperature protection chamber.
[0018] 3. With a sealing mechanism, when the door is closed, the felt strips adhere tightly to the edge of the insulated box, providing an initial seal between the door and the insulated box. Simultaneously, when the door is closed, the sealing airbag is compressed into the groove and fits tightly against the inner wall of the groove, resealing the door and the insulated box. This prevents heat loss from the inside of the insulated box, achieving a highly efficient sealing function between the insulated box and the door, and reducing heat loss during the use of the insulated box. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0021] Figure 3 This is an enlarged structural schematic diagram of the hot air circulation mechanism of this utility model;
[0022] Figure 4 This is an enlarged structural schematic diagram of the placement mechanism of this utility model.
[0023] In the diagram: 1. Insulated box; 11. Box door; 12. Control panel; 13. Support mesh plate; 14. Temperature monitor; 2. Hot air circulation mechanism; 21. Circulating air duct; 22. Hot air circulation assembly; 221. Air outlet bracket; 222. Heating wire; 223. Heating frame; 224. Blower; 3. Placement mechanism; 31. Placement tray; 32. Rotating column; 33. Insertion column; 34. Chassis; 35. Insertion hole; 4. Sealing mechanism; 41. Sealing airbag; 42. Felt strip; 43. Groove. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0025] The structure of a laboratory constant temperature protection box provided by this utility model is as follows: Figure 1 and Figure 2 As shown, the device includes an insulated box 1, with a door 11 rotatably connected to the surface of the insulated box 1. A control panel 12 is mounted on the surface of the door 11. The control panel 12 contains a lithium battery and a processor. The processor includes an amplifier tube, a protective resistor Rm, a filter, an A / D converter, and a microcontroller. The sensor and the protective resistor Rm are connected in parallel with the amplifier tube and then in series with the filter. The signal is converted by the A / D converter and sent to the microcontroller. The display screen receives the processing signals sent by the microcontroller. A support mesh plate 13 is fixed inside the insulated box 1. A temperature monitor 14 is installed inside the insulated box 1. The temperature monitor 14 can be an SDN series model. The input terminal of the temperature monitor 14 is electrically connected to the output terminal of the control panel 12.
[0026] Furthermore, such as Figure 3As shown, a hot air circulation mechanism 2 is provided on the surface of the insulation box 1. The hot air circulation mechanism 2 consists of a circulation duct 21 and a hot air circulation assembly 22. The circulation duct 21 is fixed at the bottom of the insulation box 1. The hot air circulation assembly 22 is provided on the surface of the insulation box 1 and is located above the circulation duct 21. The interior of the hot air circulation assembly 22 includes an air outlet bracket 221, a heating wire 222, a heating frame 223, and a blower 224. The air outlet bracket 221 is fixed at the top of the interior of the insulation box 1. A heating frame 223 is fixed with screws and is connected to an air outlet duct bracket 221. An electric heating wire 222 is installed inside the heating frame 223. The electric heating wire 222 can be of the CR series. The input end of the electric heating wire 222 is electrically connected to the output end of the control panel 12. A blower 224 is installed on one side of the heating frame 223. The blower 224 can be of the VFC series. One end of the blower 224 extends into the interior of the heating frame 223 through a pipe, and the other end of the blower 224 is connected to the circulating air duct 21 through a pipe.
[0027] In use, the heating wire 222 and blower 224 are controlled by the control panel 12. The heating wire 222 heats the inside of the heating frame 223 and guides the hot air to the inside of the air outlet frame 221. The air outlet frame 221 heats the inside of the insulation box 1. The temperature inside the insulation box 1 is monitored by the temperature monitor 14 to keep the inside of the insulation box 1 at a constant temperature. At the same time, the blower 224 can discharge the hot air at the bottom of the insulation box 1 through the circulating air duct 21 and return the hot air to the inside of the heating frame 223, so that the hot air circulates inside the insulation box 1, making the heating more uniform, so as to realize the circulating heating function of the constant temperature protection box.
[0028] Furthermore, such as Figure 4 As shown, the interior of the insulation box 1 is provided with a placement mechanism 3. The interior of the placement mechanism 3 includes a placement plate 31, a rotating column 32, an insert column 33, a base plate 34, and an insertion hole 35. The base plate 34 is placed on the surface of the supporting mesh plate 13. The rotating column 32 is rotatably connected to the center of the base plate 34. The interior of the insulation box 1 is provided with equally spaced placement plates 31. The center of the placement plate 31 is fixedly connected to the surface of the rotating column 32. The central axis of the placement plate 31 coincides with the central axis of the rotating column 32. The bottom of the base plate 34 is fixed with an insert column 33. The surface of the supporting mesh plate 13 is provided with an insertion hole 35. The insertion hole 35 and the insert column 33 are inserted into each other.
[0029] When using the product, if smaller experimental products need to be placed, the placement tray 31 can be placed inside the insulated box 1, and the insert post 33 can be inserted into the insertion hole 35 to position the placement tray 31. Then, multiple smaller experimental products can be placed on the surface of the placement tray 31. The placement tray 31 can be rotated under the action of the rotating post 32 to facilitate the placement of products, so as to realize the flexible product placement function of the constant temperature protection box.
[0030] Furthermore, such as Figure 2 As shown, a sealing mechanism 4 is provided between the insulated box body 1 and the box door 11. The sealing mechanism 4 includes a sealing airbag 41, a felt strip 42 and a groove 43 inside. The felt strip 42 is glued to the edge of the surface of the box door 11. When the box door 11 is closed, the surface of the felt strip 42 is tightly attached to the surface of the insulated box body 1. A groove 43 is provided at the edge of the surface of the insulated box body 1. The groove 43 has a U-shaped structure. The sealing airbag 41 is glued to the surface of the box door 11. The sealing airbag 41 is located inside the felt strip 42. When the box door 11 is closed, the sealing airbag 41 is squeezed into the inside of the groove 43 and tightly attached to the inner wall of the groove 43.
[0031] When the door 11 is closed, the felt strip 42 is pressed tightly against the edge of the insulated box 1, providing an initial seal between the door 11 and the insulated box 1. At the same time, when the door 11 is closed, the sealing airbag 41 is squeezed into the inside of the groove 43 and fits tightly against the inner wall of the groove 43, which can reseal the door 11 and the insulated box 1, making it difficult for heat to dissipate from the inside of the insulated box 1, thus achieving a highly efficient sealing function between the insulated box 1 and the door 11 of the constant temperature protection box.
[0032] Working principle: When in use, first open the door 11 and place the product to be tested on the surface of the support mesh plate 13. Then close the door 11. When closed, the felt strip 42 is tightly attached to the edge of the insulation box 1, which initially seals the door 11 and the insulation box 1. At the same time, when the door 11 is closed, the sealing airbag 41 is squeezed into the inside of the groove 43 and tightly attached to the inner wall of the groove 43, which can re-seal the door 11 and the insulation box 1, making it difficult for the heat inside the insulation box 1 to dissipate. This achieves the efficient sealing function between the insulation box 1 and the door 11 of the constant temperature protection box, reducing the heat loss during the use of the constant temperature protection box.
[0033] Subsequently, the heating wire 222 and blower 224 are controlled by the control panel 12. The heating wire 222 heats the inside of the heating frame 223 and guides the hot air to the inside of the air outlet frame 221. The air outlet frame 221 heats the inside of the insulation box 1. The temperature inside the insulation box 1 is monitored by the temperature monitor 14 to keep the inside of the insulation box 1 at a constant temperature. At the same time, the blower 224 can discharge the hot air at the bottom of the insulation box 1 through the circulating air duct 21 and return the hot air to the inside of the heating frame 223, so that the hot air circulates inside the insulation box 1 and the heating is more uniform. This realizes the circulating heating function of the constant temperature protection box and improves the uniformity of the internal temperature when the constant temperature protection box is used.
[0034] When smaller experimental products need to be placed, the placement tray 31 can be placed inside the insulated box 1, and the insertion post 33 can be inserted into the insertion hole 35 to position the placement tray 31. Then, multiple smaller experimental products can be placed on the surface of the placement tray 31. The placement tray 31 can be rotated under the action of the rotating post 32 to facilitate the placement of products, so as to realize the flexible product placement function of the constant temperature protection box, thereby improving the flexibility of product placement in the constant temperature protection box, and finally completing the use of the constant temperature protection box.
[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A laboratory constant temperature protection chamber, comprising an insulated chamber body (1), characterized in that: The surface of the insulated box (1) is rotatably connected to a door (11), and a control panel (12) is installed on the surface of the door (11). A support mesh plate (13) is fixed inside the insulated box (1), and a temperature monitor (14) is installed inside the insulated box (1). The input end of the temperature monitor (14) is electrically connected to the output end of the control panel (12). A hot air circulation mechanism (2) is provided on the surface of the insulated box (1). Composed of a circulating air duct (21) and a hot air circulation assembly (22), the heat preservation box (1) is provided with a placement mechanism (3). The placement mechanism (3) includes a placement plate (31), a rotating column (32), an insertion column (33), a base plate (34), and an insertion hole (35). A sealing mechanism (4) is provided between the heat preservation box (1) and the box door (11). The sealing mechanism (4) includes a sealing airbag (41), a felt strip (42), and a groove (43).
2. The laboratory constant temperature protection chamber according to claim 1, characterized in that: A circulating air duct (21) is fixed at the bottom of the insulated box (1), and a hot air circulation assembly (22) is provided on the surface of the insulated box (1), with the hot air circulation assembly (22) located above the circulating air duct (21).
3. A laboratory constant temperature protection chamber according to claim 2, characterized in that: The hot air circulation assembly (22) includes an air outlet frame (221), a heating wire (222), a heating frame (223), and a blower (224). The air outlet frame (221) is fixed at the top of the insulation box (1). The heating frame (223) is fixed to the surface of the insulation box (1) by screws. The heating frame (223) is connected to the air outlet frame (221).
4. A laboratory constant temperature protection chamber according to claim 3, characterized in that: The heating frame (223) is equipped with a heating wire (222), and the input end of the heating wire (222) is electrically connected to the output end of the control panel (12).
5. A laboratory constant temperature protection chamber according to claim 4, characterized in that: A blower (224) is installed on one side of the heating frame (223). One end of the blower (224) extends into the interior of the heating frame (223) through a pipe, and the other end of the blower (224) is connected to the circulating air duct (21) through a pipe.
6. A laboratory constant temperature protection chamber according to claim 1, characterized in that: A base plate (34) is placed on the surface of the supporting mesh plate (13), and a rotating column (32) is rotatably connected at the center of the base plate (34).
7. A laboratory constant temperature protection chamber according to claim 6, characterized in that: The interior of the insulated box (1) is provided with equally spaced placement trays (31). The center of the placement tray (31) is fixedly connected to the surface of the rotating column (32), and the central axis of the placement tray (31) coincides with the central axis of the rotating column (32).
8. A laboratory constant temperature protection chamber according to claim 7, characterized in that: The bottom of each chassis (34) is fixed with a post (33), and the surface of each support mesh plate (13) is provided with a hole (35), and the hole (35) and the post (33) are inserted into each other.
9. A laboratory constant temperature protection chamber according to claim 1, characterized in that: Felt strips (42) are adhered to the edge of the door (11). When the door (11) is closed, the surface of the felt strips (42) is tightly attached to the surface of the insulated box (1).
10. A laboratory constant temperature protection chamber according to claim 9, characterized in that: A groove (43) is provided at the edge of the surface of the heat preservation box (1). The groove (43) has a U-shaped structure. A sealing airbag (41) is adhered to the surface of the box door (11). The sealing airbag (41) is located inside the felt strip (42). When the box door (11) is closed, the sealing airbag (41) is squeezed into the inside of the groove (43) and fits tightly against the inner wall of the groove (43).