Household freeze dryer
By introducing a vibrating frame assembly and an adjustable heating plate assembly into a home freeze dryer, the problem of low freezing and heating efficiency caused by fixed heating plate spacing is solved, achieving uniform freezing and synchronous heating of food, and improving freezing and heating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-27
AI Technical Summary
The fixed spacing of heating plates in existing household freeze dryers results in low efficiency in freezing and heating food, especially insufficient contact between food and cold air, and uneven heating.
The vibrating frame assembly uses high-frequency, small-amplitude vibration, combined with an adjustable heating plate assembly, to increase the contact between food and cold air during freezing. After freezing, the spacing between the heating plates is adjusted to achieve synchronous heating.
It improves freezing and heating efficiency, ensures uniform freezing and heating of food, shortens freezing time, and enhances ease of operation and safety.
Smart Images

Figure CN224050851U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to freeze dryer technical field, concretely is a kind of household freeze dryer. BACKGROUND
[0002] Household freeze dryer is a kind of miniaturization, applicable to the freeze-drying equipment of family environment, through low-temperature freezing and vacuum sublimation technology, the moisture in food, pet food, herbal medicine and other materials is removed, so as to prolong shelf life and retain nutritional ingredients and original form. Its design is simplified on the basis of industrial freeze dryer, and more attention is paid to operation convenience, safety and space adaptability.
[0003] But the patent under prior art has the following several shortcomings:
[0004] (1) the existing utility model household freeze dryer uses heating plate for heating sublimation frozen food, and the heating plate is arranged on the support frame. The spacing between the heating plates is fixed. First, the food is placed on the heating plate. In the freezing process, the side of the food that is in contact with the heating plate is not easy to contact with the cold air, which prolongs the freezing time. In order to maintain stable freezing efficiency, the spacing between the heating plates is too large, so that the food cannot be heated simultaneously by the heating plates at the bottom and the top, resulting in low heating efficiency of the food. UTILITY MODEL CONTENTS
[0005] The technical problem to be solved by the utility model is to overcome the above technical defects, and to provide a household freeze dryer which can vibrate the heating plate at high frequency and small amplitude when freezing food, and can adjust the spacing between the heating plates during sublimation.
[0006] In order to solve the above problems, the technical scheme of the utility model is as follows: a household freeze dryer, comprising:
[0007] The freeze dryer box body is provided with a sealing box door which is rotatably connected to the front side of the freeze dryer box body. An electromagnetic lock is arranged between the sealing box door and the freeze dryer box body. The inside top of the freeze dryer box body is a freezing chamber, and the inside bottom of the freeze dryer box body is provided with an equipment chamber.
[0008] The vibration frame assembly is arranged inside the freezing chamber and the equipment chamber.
[0009] The adjustable heating plate assembly is arranged inside the vibration frame assembly.
[0010] Further, the vibration frame assembly comprises
[0011] The motor one is fixedly installed at the inside bottom end of the equipment chamber. The drive shaft of the motor one is fixedly connected with a rotating disc at both ends. The rotating disc is fixedly connected with a connecting shaft at one side.
[0012] Vibration frame, the freezing bin is fixedly connected with the partition plate between the equipment bin, the vibration frame is slidably connected to the inner side of the partition plate, the vibration frame bottom end is fixedly connected with the connecting ring, the connecting ring is sleeved on the outer side of the connecting shaft.
[0013] Further, the adjustable heating plate assembly comprises
[0014] Heating plate, the vibration frame is provided with a sliding rail on both sides, the heating plate is slidably connected to the inner side of the sliding rail, the heating plate and the inner side of the vibration frame are provided with a threading hole;
[0015] Motor two, the motor two is fixedly installed on the top end of the vibration frame, the motor two is fixedly installed with a sealing cover on the outer side, the motor two drive shaft one end is fixedly connected with a synchronous pulley one;
[0016] Synchronous pulley two, the fixed shaft is fixedly connected to the inner side of the sliding rail, the synchronous pulley two is rotatably connected to the outer side of the fixed shaft, the outer side of the synchronous pulley one and the synchronous pulley two is sleeved on the synchronous belt;
[0017] Drive rod, the drive rod is fixedly connected to the outer side of the synchronous pulley two;
[0018] Transmission rod, the transmission rod is rotatably connected to both ends of the heating plate, the length of the transmission rod rotatably connected to both ends of the heating plate of the bottom layer is half of the upper layer transmission rod, the transmission rods are rotatably connected, and the drive rod is rotatably connected with the transmission rod of the uppermost layer.
[0019] The utility model discloses a kind of household freeze-drying machines compared with prior art, the advantages are as follows:
[0020] (1) the utility model discloses a kind of household freeze-drying machines on the basis of original, vibration frame assembly is increased, when food material is frozen, high-frequency small amplitude vibration can be carried out, so that the bottom end of food material can also be contacted with cold air, improve freezing efficiency, while adjustable heating plate assembly is also set, when sublimation, adjust the spacing between heating plate, so that the top end and bottom end of food material can be heated synchronously, greatly improve heating efficiency. DRAWINGS
[0021] Figure 1 It is a perspective view of the utility model discloses a kind of household freeze-drying machines.
[0022] Figure 2 It is a sectional view of the utility model discloses a kind of household freeze-drying machines. Figure One .
[0023] Figure 3 It is a sectional view of the utility model discloses a kind of household freeze-drying machines. Figure Two .
[0024] Figure 4 It is a sectional view of the utility model discloses a kind of household freeze-drying machines. Figure Three .
[0025] Figure 5 The utility model Figure 2 A is an enlarged view of the A region in the utility model.
[0026] As shown in the figure: 1, freeze dryer box body; 2, sealing door; 3, freezing warehouse; 4, equipment warehouse; 5, vibration frame assembly; 501, motor one; 502, rotary disc; 503, connecting shaft; 504, vibration frame; 505, connecting ring; 6, adjustable hot plate assembly; 601, slide rail; 602, hot plate; 603, threading hole; 604, motor two; 605, synchronous pulley one; 606, synchronous pulley two; 607, synchronous belt; 608, driving rod; 609, transmission rod. DETAILED DESCRIPTION
[0027] The specific embodiments of the utility model will be further described below in conjunction with the drawings. Wherein the same parts are indicated by the same reference signs.
[0028] It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a particular component.
[0029] In order to make the content of the utility model more easily understood clearly, the technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments.
[0030] As Figures 1 to 5 shown, a household freeze dryer, comprising: freeze dryer box body 1 vibration frame assembly 5 and adjustable hot plate assembly 6, freeze dryer box body 1 front side rotationally connected with sealing door 2, sealing door 2 and freeze dryer box body 1 between the setting has electromagnetic lock, freeze dryer box body 1 inner side top is freezing warehouse 3, freeze dryer box body 1 inner side bottom is provided with equipment warehouse 4, vibration frame assembly 5 sets up in freezing warehouse 3 and equipment warehouse 4 inner side, adjustable hot plate assembly 6 sets up in vibration frame assembly 5 inner side.
[0031] The inner wall of the equipment warehouse of freeze dryer box body 1 and the freezing warehouse 3 is provided with a refrigeration system composed of semiconductor refrigerating fins, which can cool the freezing warehouse 3. A vacuum system composed of a dry vacuum pump is installed on the tank wall of the freezing warehouse 3. A water trap is installed in the freezing warehouse 3 to capture water vapor during sublimation. A controller is installed in the equipment warehouse 4 to detect the temperature and pressure in the freezing warehouse 3 and control the start of the electrical appliances.
[0032] The vibration frame assembly 5 comprises a motor 501 and a vibration frame 504. The motor 501 is fixedly installed at the bottom end of the inner side of the equipment bin 4. The drive shaft of the motor 501 is fixedly connected with a rotating disc 502 at both ends. The rotating disc 502 is fixedly connected with a connecting shaft 503 at one side. A partition plate is fixedly connected between the freezing bin 3 and the equipment bin 4. The vibration frame 504 is slidingly connected to the inner side of the partition plate, and the two are sealed when sliding. The vibration frame 504 is fixedly connected with a connecting ring 505 at the bottom end. The connecting ring 505 is sleeved on the outer side of the connecting shaft 503.
[0033] The adjustable heating plate assembly 6 comprises a heating plate 602, a motor 604, a synchronous wheel 606, a drive rod 608 and a transmission rod 609. The vibration frame 504 is provided with sliding rails 601 at both sides. The heating plate 602 is slidingly connected to the inner side of the sliding rails 601. The inner sides of the heating plate 602 and the vibration frame 504 are provided with threading holes 603. The connecting line of the heating plate 602 and the motor 604 can have excess line and pass through the threading hole 603 to be connected with the controller in the equipment bin 4. The bottom end of the threading hole 603 is sealed. The motor 604 is fixedly installed at the top end of the vibration frame 504. A sealing cover is fixedly installed on the outer side of the motor 604. The drive shaft of the motor 604 is fixedly connected with a synchronous wheel 605 at one end. The inner side of the sliding rail 601 is fixedly connected with a fixed shaft. The synchronous wheel 606 is rotatably connected to the outer side of the fixed shaft. The outer sides of the synchronous wheel 605 and the synchronous wheel 606 are sleeved on a synchronous belt 607. The drive rod 608 is fixedly connected to the outer side of the synchronous wheel 606. The transmission rod 609 is rotatably connected to both ends of the heating plate 602. The length of the transmission rod 609 rotatably connected to both ends of the bottommost heating plate 602 is half of the length of the upper transmission rod 609. The transmission rods 609 are rotatably connected between them. The drive rod 608 is rotatably connected to the uppermost transmission rod 609.
[0034] In specific use, open the sealing box door 2, place the food to be frozen on the heating plate 602, close the sealing box door 2, start the refrigeration system to cool the freezing bin 3, and start freezing the food. At this time, start the motor 501 to drive the drive shaft of the motor 501 to rotate the rotating disc 502. The rotating disc 502 drives the connecting shaft 503 deviated from the center of the rotating disc to rotate. The connecting shaft 503 slides in the connecting ring 505, pushes the connecting ring 503, and makes the vibration frame 504 vibrate in the freezing bin 3. The food on the top of the heating plate 602 is shaken, and the freezing efficiency of the food is improved.
[0035] After the controller completes the freezing of the food, the vacuum system is started to maintain a vacuum environment in the freezing bin 3.
[0036] Through the controller, the motor two 604 is started, so that the motor two 604 drive shaft drives synchronous wheel one 605 to rotate, through synchronous belt 607 drive synchronous wheel two 606 rotation, so that the drive rod 609 rotates, drive rod 609 start transmission rod 609 rotation, transmission rod 609 rotation, drive the heating plate 602 that is limited by slide rail 601 in slide rail 601 sliding, so that the interval between heating plate 602 can be equidistant adjustment, according to the size of the freeze-dried food material, through the controller can adjust the rotation time of motor two 604, and then complete the adjustment of the interval of heating plate, reduce the interval of heating plate 602, at this time start heating plate 602, so that the temperature slowly rises, so that the water in the frozen food inside sublimate, start water trap to capture water vapor, complete drying.
[0037] Reverse start vacuum pump, so that the pressure in the frozen warehouse 3 recovers to normal, open electromagnetic lock, so that the sealing box door 2 opens, take out the freeze-dried food material.
[0038] The electrical components appearing in the text are all connected with the main controller and 220V mains, and the main controller can be a computer or other conventional known device that can be controlled, and the detailed description of known functions and known components is omitted in the specific embodiment of the present disclosure. In order to ensure the compatibility of the device, the operation means adopted is consistent with the parameters of the market appliances.
[0039] The above describes the present application and its embodiments, which is not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution, which should belong to the protection scope of the present application.
Claims
1. A domestic lyophilizer characterized in that, Include: Freeze dryer box (1), the freeze dryer box (1) front side rotation is connected with the sealed box door (2), the sealed box door (2) with freeze dryer box (1) between electromagnetic lock is established, the freeze dryer box (1) inside top is frozen warehouse (3), the freeze dryer box (1) inside bottom is equipped with equipment warehouse (4); Vibration frame assembly (5), the vibration frame assembly (5) is set up in frozen warehouse (3) and equipment warehouse (4) inside; Adjustable hot plate assembly (6), the adjustable hot plate assembly (6) is set up in vibration frame assembly (5) inside.
2. A domestic freeze-dryer as claimed in claim 1, characterised in that: The vibration frame assembly (5) includes: Motor one (501), the motor one (501) fixed mounting is equipped with inside bottom end in equipment warehouse (4), the motor one (501) drive shaft both ends are fixedly connected with rotary disc (502), the rotary disc (502) one side is fixedly connected with connecting shaft (503); Vibration frame (504), the frozen warehouse (3) and equipment warehouse (4) between fixedly connected with partition, the vibration frame (504) is slidably connected in partition inside, the vibration frame (504) bottom end is fixedly connected with connecting ring (505), the connecting ring (505) is sleeved in connecting shaft (503) outside.
3. A domestic freeze-dryer as claimed in claim 2, characterised in that: The adjustable hot plate assembly (6) includes Heating plate (602), the vibration frame (504) both sides are equipped with slide rail (601), the heating plate (602) is slidably connected in slide rail (601) inside, the heating plate (602) and vibration frame (504) inside are equipped with threading hole (603); Motor two (604), the motor two (604) fixed mounting is equipped with in vibration frame (504) top, the motor two (604) outside fixed mounting has seal cover, the motor two (604) drive shaft one end is fixedly connected with synchronous pulley one (605); Synchronous pulley two (606), the slide rail (601) inside is fixedly connected with fixed shaft, the synchronous pulley two (606) rotation is connected in fixed shaft outside, the synchronous pulley one (605) and synchronous pulley two (606) outside sleeve in synchronous belt (607); Drive rod (608), the drive rod (608) is fixedly connected in synchronous pulley two (606) outside; Transmission rod (609), the transmission rod (609) rotation is connected in heating plate (602) both ends, the most bottom layer heating plate (602) both ends rotation is connected transmission rod (609) length is half of upper layer transmission rod (609), the transmission rod (609) is rotationally connected, the drive rod (608) and the most upper layer transmission rod (609) rotation is connected.