Freeze-drying cavity light-transmitting assembly and freeze dryer

Abstract

The utility model provides a freeze-drying cavity light-transmitting assembly and a freeze dryer, and belongs to the technical field of freeze-drying equipment. The top of the sealing cover is adjusted to be of an open structure, the top opening is sealed and covered through the freeze-drying cavity light-transmitting assembly, the transparent cover plate is arranged on the freeze-drying cavity light-transmitting assembly, and the freeze-drying state of an internal sample can be visually observed through the transparent cover plate; in addition, illumination can be applied to the interior of the freeze-drying cavity through the transparent cover plate, and the sublimation process in the freeze-drying cavity is enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of freeze-drying equipment technology, specifically relating to a light-transmitting component for a freeze-drying chamber and a freeze dryer. Background Technology

[0002] A freeze dryer is a device used for freeze-drying samples. Its principle is to rapidly freeze the sample at low temperatures, and then, in a suitable vacuum environment, allow the frozen water molecules to sublimate directly into water vapor and escape. A freeze dryer mainly consists of a sample shelf assembly and a cold trap assembly. The sample shelf assembly is used to hold the samples, and the cold trap assembly is used to provide a freezing environment for the samples.

[0003] In related technologies, the sample shelf assembly includes a shelf and a sealing cover. The sealing cover is closed at the top and open at the bottom. The sealing cover is fitted around the shelf and, together with the shelf mounting plate, forms a closed chamber. The sealing cover is made of metal, which has the advantages of long service life and high structural strength. However, the metal sealing cover is not transparent to light, so the freeze-drying state of the sample inside cannot be well observed; and the sublimation process inside the freeze dryer cannot be enhanced by applying light.

[0004] Therefore, it is necessary to provide a light-transmitting component for the freeze-drying chamber and a freeze dryer to solve the above problems. Utility Model Content

[0005] This utility model provides a freeze-drying chamber light-transmitting component and a freeze dryer. The top of the sealing cover is adjusted to an open structure, and the top opening is sealed by a freeze-drying chamber light-transmitting component. A transparent cover plate is provided on the freeze-drying chamber light-transmitting component. The freeze-drying state of the sample inside can be directly observed through the transparent cover plate. Furthermore, light can be applied to the inside of the freeze-drying chamber through the transparent cover plate to enhance the sublimation process inside the freeze-drying chamber, effectively solving at least one of the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is implemented as follows:

[0007] A lyophilization chamber light-transmitting component, comprising:

[0008] A cover is provided on the top of the freeze-drying chamber, and a first through hole is provided through the cover in the axial direction, the through hole connecting the freeze-drying chamber and the outside.

[0009] A transparent cover plate is detachably connected to the cover body and completely covers the first through hole.

[0010] As a preferred improvement, the cover includes a top wall, an outer side wall and an inner side wall disposed on the back side of the top wall, the inner side wall and the outer side wall are spaced apart to form a gap, the gap is in communication with the freeze-drying chamber, the inner side wall is located inside the outer side wall, and the first through hole is surrounded by the inner side wall.

[0011] As a preferred improvement, the bottom of the inner sidewall protrudes towards the center of the first through hole to form a ring block, the transparent cover plate is supported on the ring block and fixed to the ring block by screws, and the axes of the first through hole, the ring block and the transparent cover plate are on the same straight line.

[0012] As a preferred improvement, the ring block and the inner sidewall cooperate to form a mounting groove, the mounting groove being part of the first through hole, the transparent cover plate being installed in the mounting groove, and the sidewall of the transparent cover plate being in contact with the inner sidewall, and the upper surface being flush with the upper surface of the top wall.

[0013] As a preferred improvement, a sealing ring is sandwiched between the transparent cover plate and the ring block, and the upper surface of the ring block is recessed downward to form an annular groove, which communicates with the mounting groove, and the sealing ring is installed in the annular groove.

[0014] As a preferred improvement, the outer wall is provided with a plurality of second through holes along the radial direction of the cover, the second through holes connecting the gap and the outside. Each second through hole has a connection port at its outer end for mounting an external bottle. Each connection port is provided with a valve for controlling the opening and closing of the connection port.

[0015] As a preferred improvement, the plurality of second through holes are arranged in a ring array along the axis of the cover.

[0016] A freeze dryer includes the aforementioned freeze-drying chamber light-transmitting component, sample shelf assembly, and cold trap assembly. The sample shelf assembly includes a glass cover with openings at both ends, a shelf, and a shelf mounting plate. The freeze-drying chamber light-transmitting component covers the top opening of the glass cover, and the shelf mounting plate covers the bottom opening of the glass cover. The three components cooperate to form a freeze-drying chamber. The shelf is housed within the freeze-drying chamber and fixed to the shelf mounting plate. The cold trap assembly is disposed below the shelf mounting plate to maintain the freezing environment within the freeze-drying chamber.

[0017] As a preferred improvement, the shelf includes multiple parallel and spaced shelf panels and shelf rods for supporting the shelf panels. The bottom of the shelf rods is fixed to the shelf mounting plate, and the top is suspended. Each shelf panel is fixed to the shelf rod, and the sample is placed on the shelf panel.

[0018] As a preferred improvement, the cold trap assembly includes a base, a hanging plate, and a cold trap. The hanging plate is disposed on the top of the base and cooperates with the base to form a receiving space. The cold trap is fixed to the bottom of the hanging plate and suspended within the receiving space. The hanging plate has a clearance hole through it corresponding to the position of the cold trap. A shelf mounting plate is supported above the hanging plate and covers the clearance hole. The shelf mounting plate has a guide hole through it communicating with the clearance hole, through which the freeze-drying chamber and the cold trap are connected.

[0019] The beneficial effects of this utility model are as follows:

[0020] (1) Adjust the top of the sealing cover to an open structure and seal the top opening through a freeze-drying chamber light transmission component. A transparent cover is provided on the freeze-drying chamber light transmission component. The freeze-drying state of the sample inside can be observed directly through the transparent cover. Light can also be applied to the freeze-drying chamber through the transparent cover to enhance the sublimation process inside the freeze-drying chamber.

[0021] (2) Setting the sealing cover as a transparent glass cover can serve the same purpose as a transparent cover plate. Combining the two methods promotes the sublimation process and improves the sample freeze-drying efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the light-transmitting component of the freeze-drying chamber provided in Embodiment 1 of this utility model;

[0023] Figure 2 express Figure 1 The exploded structural diagram of the light-transmitting component of the freeze-drying chamber is shown.

[0024] Figure 3 express Figure 1 A cross-sectional view of the light-transmitting component of the freeze-drying chamber shown;

[0025] Figure 4 express Figure 2 The half-sectional view of the cover shown;

[0026] Figure 5 This is a three-dimensional structural diagram of the freeze dryer provided in Embodiment 2 of this utility model;

[0027] Figure 6 express Figure 5 The exploded view of the freeze dryer is shown below;

[0028] Figure 7 express Figure 5 The image shows a cross-sectional view of the freeze dryer. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. 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 protection scope of this utility model.

[0030] Example 1

[0031] Please see Figures 1-4 This embodiment provides a freeze-drying chamber light-transmitting component 100, including a cover 10 and a transparent cover plate 20.

[0032] The cover 10 is used to seal the top of the freeze-drying chamber. The cover 10 has a first through hole 11 extending through it in the axial direction, which connects the freeze-drying chamber to the outside. The transparent cover plate 20 is detachably connected to the cover 10 and completely covers the first through hole 11.

[0033] The transparent cover 20 is made of transparent materials such as glass, acrylic sheet, or plastic. Through the transparent cover 20, the freeze-drying state of the internal sample can be directly observed. Furthermore, light can be applied to the freeze-drying chamber through the transparent cover 20 to enhance the sublimation process inside the chamber and accelerate the freeze-drying efficiency. The transparent cover 20 is detachably connected to the cover body 10. When the transparent cover 20 becomes scratched or dirty, its light transmittance decreases, affecting the freeze-drying effect. In this case, the transparent cover 20 can be directly removed and replaced.

[0034] The cover 10 includes a top wall 12, an outer side wall 13 and an inner side wall 14 disposed on the back of the top wall 12. The inner side wall 14 and the outer side wall 13 are spaced apart to form a gap 15. The gap 15 communicates with the freeze-drying chamber. The inner side wall 14 is located inside the outer side wall 13. The first through hole 11 is surrounded by the inner side wall 14.

[0035] The bottom of the inner sidewall 14 protrudes towards the center of the first through hole 11 to form a ring block 16. The transparent cover plate 20 is supported on the ring block 16 and fixed to the ring block 16 by screws. The axes of the first through hole 11, the ring block 16 and the transparent cover plate 20 are on the same straight line, making the overall structure regular and the appearance more harmonious.

[0036] Specifically, the ring block 16 and the inner sidewall 14 cooperate to form an installation groove 17, which is part of the first through hole 11. The transparent cover plate 20 is installed in the installation groove 17, and the sidewall of the transparent cover plate 20 is attached to the inner sidewall 14, and the upper surface is flush with the upper surface of the top wall 12, so that the transparent cover plate 20 is completely embedded in the cover body 10, as part of the cover body 10.

[0037] A sealing ring 18 is sandwiched between the transparent cover plate 20 and the ring block 16 to ensure the airtightness of the freeze-drying chamber. Specifically, the upper surface of the ring block 16 is recessed to form an annular groove 160, which communicates with the mounting groove 17. The sealing ring 18 is installed in the annular groove 160. The annular groove 160 serves to position the sealing ring 18 during installation and to limit its position after installation, preventing displacement and air leakage.

[0038] The outer wall 13 is provided with a plurality of second through holes 130 extending radially through the cover 10, the second through holes 130 connecting the gap 15 and the outside. Each second through hole 130 has a connection port 19 at its outer end, the connection port 19 being used to install an external bottle, and each connection port 19 is provided with a valve 30, the valve 30 being used to control the opening and closing of the connection port 19.

[0039] The connection port 19 allows multiple external vials to be connected to the light-transmitting component of the freeze-drying chamber. Each external vial maintains the same internal environment as the freeze-drying chamber, enabling synchronous freeze-drying of the samples within it. Each freeze-drying vial corresponds to a valve 30 for controlling the pressure within it, allowing each vial to be controlled independently.

[0040] Preferably, the plurality of second through holes 130 are arranged in a circular array along the axis of the cover 10, and correspondingly, the external hanging bottle is also evenly distributed around the periphery of the cover 10.

[0041] Example 2

[0042] Please see Figures 5-7 This embodiment provides a freeze dryer 1000, including the freeze drying chamber light-transmitting component 100, sample shelf component 200 and cold trap component 300 as in embodiment 1.

[0043] The sample shelf assembly 200 includes a glass cover 210 with openings at both ends, a shelf 220, and a shelf mounting plate 230. The freeze-drying chamber light-transmitting component 100 covers the top opening of the glass cover 210, and the shelf mounting plate 230 covers the bottom opening of the glass cover 210. The three components work together to form a freeze-drying chamber 240. The shelf 220 is housed in the freeze-drying chamber 240 and fixed on the shelf mounting plate 230.

[0044] The glass cover 210 can serve the same function as the transparent cover 20. On the one hand, it allows for direct observation of the freeze-drying state of the internal sample. On the other hand, it can also apply light to the freeze-drying chamber 240 through the glass cover 210 to enhance the sublimation process inside the freeze-drying chamber 240.

[0045] The shelf 220 includes multiple parallel shelf panels 221 and shelf rods 222 for supporting the shelf panels 221. The bottom of the shelf rods 222 is fixed to the shelf mounting plate 230 and the top is suspended. Each shelf panel 221 is fixed to the shelf rods 222 and the sample is placed on the shelf panel 221.

[0046] The cold trap assembly 300 includes a base 310, a hanging plate 320, and a cold trap 330. The hanging plate 320 is disposed on the top of the base 310 and cooperates with the base 310 to form a receiving space. The cold trap 330 is fixed to the bottom of the hanging plate 320 and suspended in the receiving space. The hanging plate 320 is provided with a clearance hole 321 corresponding to the position of the cold trap 330. The shelf mounting plate 230 is supported above the hanging plate 310 and covers the clearance hole 321. The shelf mounting plate 230 is provided with a guide hole communicating with the clearance hole 321. The guide hole and the clearance hole 321 connect the freeze-drying chamber 240 and the cold trap 330, allowing the freeze-drying chamber 240 and the cold trap 330 to exchange heat and maintain the freezing environment in the freeze-drying chamber 240.

[0047] The working mechanism of the cold trap 330 is conventional technology in the field, and will not be described in detail in this embodiment. It should be noted that the freeze dryer 1000 provided in this embodiment needs to be used in conjunction with a light source. The light source is used to generate illumination, and conventional technology in the field can be used. This embodiment does not impose any restrictions on this.

[0048] The sample shelf assembly 200 is detachably mounted on top of the cold trap assembly 300. After all the samples in the sample shelf assembly 200 have been freeze-dried, the sample shelf assembly 200 can be directly detached from the cold trap assembly 300 before the samples are taken out. At this time, a new sample shelf assembly 200 can be placed on top of the cold trap assembly 300, which can improve the utilization rate of the cold trap assembly 300 and improve the overall freeze-drying efficiency.

[0049] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A lyophilization chamber light-transmitting assembly, characterized in that, The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly.

2. The lyophilization cavity light-transmitting assembly of claim 1, wherein, The application relates to a lyophilization cavity light-transmitting assembly.

3. The lyophilization cavity light-transmitting assembly of claim 2, wherein, The application relates to a lyophilization cavity light-transmitting assembly.

4. The lyophilization cavity light-transmitting assembly of claim 1, wherein, The application relates to a lyophilization cavity light-transmitting assembly.

5. The lyophilization cavity light-transmitting assembly of claim 4, wherein, The application relates to a lyophilization cavity light-transmitting assembly.

6. A freeze dryer characterized by, The application relates to a lyophilization cavity light-transmitting assembly.

7. The lyophilizer of claim 6, wherein The application relates to a lyophilization cavity light-transmitting assembly.

8. The lyophilizer of claim 6, wherein, The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. The application relates to a lyophilization cavity light-transmitting assembly. 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