CN105371566A - An air outlet control system for a freezer - Google Patents

Abstract

The invention relates to the technical field of freezing and low-temperature refrigeration, in particular to an air outlet control system of a freezing chamber, which comprises an air feeder, an air duct, an air outlet cover and a controller, wherein the air feeder is arranged on the air duct; the blower and the wind are blown to the top part arranged outside the freezing chamber; the air outlet cover is arranged on the wall in the freezing chamber; the input end of the air duct is connected with the air feeder, and the output end of the air duct is connected with the input end of the air outlet cover; an air guide device is arranged at the output end of the air outlet cover; an air speed sensor is arranged in the air outlet cover; the air feeder, the air guide device and the air speed sensor are all electrically connected with the controller. The air outlet of the air guide device is provided with the air guide device, and the angle of a guide plate in the air guide device can be changed under the control of the linkage mechanism and the motor, so that the blowing angle of cold air is changed, the feeding uniformity of the cold air is ensured, and the cooling speed consistency of substrates placed on a shelf at different heights is ensured.

Description

An air outlet control system for a freezer

technical field

The invention relates to the technical field of freezing and low-temperature refrigeration, in particular to an air outlet control system of a freezing chamber.

Background technique

A lot of substrates are needed in the production process of ointment plasters, which is a porous jelly-like substance attached to ointment plasters for carrying drugs. The base is mostly disc-shaped, which is formed by filling the paste evenly on the disc-shaped material pan, and placing the material pan in the freezer for freeze-drying.

In mass production of substrates, trays are lined up on racks and the racks are transferred to a larger freezer chamber where the substrates are freeze-dried. It is usually clear that a dozen or dozens of shelves are stored in a freezer. In order to ensure that all substrates can be fully freeze-dried within the same time, the temperature in the freezer must be uniform, and large local temperature differences are not allowed.

Contents of the invention

The object of the present invention is to address the deficiencies of the prior art and provide an air outlet control system for a freezer. The air outlet control system is provided with an air guiding device at the air outlet, and the deflectors in the air guiding device can be linked The angle is changed under the control of the mechanism and the motor, so as to change the angle of the cold air blowing in and ensure the uniformity of the cold air feeding. Since the deflectors are arranged at equal intervals in parallel with the air outlet of the air outlet hood, and are horizontally arranged, it can realize The up and down sweeping action can evenly distribute the cold air entering the freezer in the vertical direction, avoid vertical temperature differences in the freezer, and ensure that the cooling speed of the substrates placed on the shelves at different heights is consistent.

In order to solve the above problems, the present invention provides the following technical solutions:

An air outlet control system for a freezer, comprising a blower, an air duct, an air outlet hood and a controller; the blower and air are installed on the top outside the freezer; the air outlet hood is installed on the wall inside the freezer; the The input end of the air duct is connected to the air blower, and the output end is connected to the input end of the air outlet hood; an air guiding device is installed at the output end of the air outlet hood; a wind speed sensor is installed in the air outlet hood; the air blower, Both the wind guiding device and the wind speed sensor are electrically connected with the controller.

Further, the air guiding device includes a deflector, a linkage mechanism and a motor; the deflectors are equidistantly arranged in parallel at the air outlet of the air outlet hood and are connected to the motor through a linkage mechanism; the motor is connected to the controller electric sexual connection.

Further, both ends of the deflector are fixed with rotating shafts; the rotating shaft on one side of the deflector is connected to the motor through a linkage mechanism.

Further, the linkage structure includes a main connecting rod and a secondary connecting rod; one end of the secondary connecting rod is fixedly connected to the rotating shaft, and the other end is hinged to the main connecting rod; a swing arm is installed on the output shaft of the motor; the The swing arm is hinged with the main link.

Beneficial effects: the air outlet control system of a freezer of the present invention, the air outlet control system is provided with an air guide device at the air outlet, and the deflector in the air guide device can be changed under the control of the linkage mechanism and the motor Angle, so as to change the angle of cold air blowing in, to ensure the uniformity of cold air feeding, because the deflector is equidistantly arranged in parallel with the air outlet of the air outlet hood, and is set horizontally, it can realize the up and down sweeping action, which can be The cold air entering the freezer is evenly distributed in the vertical direction, avoiding the temperature difference in the vertical direction in the freezer, and ensuring the same cooling speed of the substrates placed on the shelves at different heights.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of an exploded structure of the present invention;

Fig. 3 is the enlarged schematic diagram of place A in Fig. 2;

Explanation of reference numerals: blower 1, air duct 2, air outlet cover 3, wind speed sensor 4, deflector 5, rotating shaft 6, main connecting rod 7, auxiliary connecting rod 8, motor 9, swing arm 10.

detailed description

Below in conjunction with accompanying drawing and embodiment of description, specific embodiment of the present invention is described in further detail:

Referring to the air outlet control system of a freezer shown in Figure 1 and Figure 3, it includes a blower 1, an air duct 2, an air outlet cover 3 and a controller; the blower 1 and the wind are installed on the top outside the freezer; the The air outlet cover 3 is installed on the wall in the freezing chamber; the input end of the air duct 2 is connected with the blower 1, and the output end is connected with the input end of the air outlet cover 3; a guide is installed at the output end of the air outlet cover 3 Wind device: a wind speed sensor 4 is installed in the air outlet cover 3; the blower 1, the wind guiding device and the wind speed sensor 4 are all electrically connected to the controller.

Described wind guiding device comprises deflector plate 5, linkage mechanism and motor 9; Described deflector plate 5 is equidistantly arranged in parallel at the air outlet place of air outlet cover 3 and is connected with motor 9 by linkage mechanism; Described motor 9 and The controller is electrically connected.

Both ends of the deflector 5 are fixed with rotating shafts 6; the rotating shaft 6 on one side of the deflector 5 is connected with the motor 9 through a linkage mechanism.

The linkage structure includes a main connecting rod 7 and a secondary connecting rod 8; one end of the secondary connecting rod 8 is fixedly connected to the rotating shaft 6, and the other end is hinged to the main connecting rod 7; a swing arm is installed on the output shaft of the motor 9 10 ; the swing arm 10 is hinged to the main connecting rod 7 .

It should be noted that, in the air outlet control system of a freezer of the present invention, the air outlet control system is provided with an air guiding device at the air outlet, and the deflector 5 in the air guiding device can be connected between the linkage mechanism and the motor 9. Change the angle under the control of the control, thereby changing the angle of cold air blowing, to ensure the uniformity of cold air feeding, because the deflector 5 is equidistantly arranged in parallel with the air outlet of the air outlet hood 3, and is horizontally arranged, it can realize up and down The sweeping action can make the cold air entering the freezer evenly distributed in the vertical direction, avoid vertical temperature differences in the freezer, and ensure that the cooling speed of the substrates placed on the shelves at different heights is consistent.

The above description is only a preferred embodiment of the present invention, and does not make any limitation to the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still valid. It belongs to the scope of the technical solution of the present invention.

Claims (4)

1. An air outlet control system for a freezer, characterized in that: it includes a blower (1), an air duct (2), an air outlet cover (3) and a controller; the blower (1) is installed outside the freezer The top of the air outlet hood (3) is installed on the wall of the freezing chamber; the input end of the air duct (2) is connected to the blower (1), and the output end is connected to the input end of the air outlet hood (3); An air guide device is installed at the output end of the air outlet cover (3); an air speed sensor (4) is installed inside the air outlet cover (3); the air blower (1), the air guide device and the wind speed sensor (4 ) are electrically connected to the controller. 2. An air outlet control system for a freezer according to claim 1, characterized in that: the air guide device includes a deflector (5), a linkage mechanism and a motor (9); the deflector ( 5) Equidistantly arranged in parallel at the air outlet of the air outlet hood (3) and connected to the motor (9) through a linkage mechanism; the motor (9) is electrically connected to the controller. 3. The air outlet control system of a freezer according to claim 2, characterized in that: the two ends of the deflector (5) are fixed with rotating shafts (6); the deflector (5) is The rotating shaft (6) on the side is connected with the motor (9) through a linkage mechanism. 4. The air outlet control system of a freezer according to claim 3, characterized in that: the linkage structure includes a main connecting rod (7) and a secondary connecting rod (8); the secondary connecting rod (8) One end of one end is fixedly connected with the rotating shaft (6), and the other end is hinged with the main connecting rod (7); a swing arm (10) is installed on the output shaft of the motor (9); the swing arm (10) is connected with the main connecting rod (7) Hinged.