阅读说明：本技术 一种具有循环降温结构的节能型电柜 (Energy-saving electric cabinet with circulation cooling structure ) 是由 王浪舟 王正群 于 2021-07-16 设计创作，主要内容包括：一种具有循环降温结构的节能型电柜,本发明涉及电柜技术领域；单向阀为四个,且分别固定设置在空气循环腔左右两侧壁的开口内部；固定板为两个,且分别活动设置在左右两侧的空气循环腔的内部；橡胶密封圈为两个,且分别固定套设在左右两侧的固定板四周壁上,橡胶密封圈的外侧壁与空气循环腔的内侧壁相抵触设置；偏心转杆固定设置在驱动电机的输出轴上；调节柱固定设置在偏心转杆前端的上侧面上,且调节柱的上端活动插设在腰形槽的内部；半导体制冷片固定设置在右侧的空气循环腔的内底面上；电柜的左右两侧分别设置有用于热气散出和制冷降温的腔体,同时,能够实现箱体内部的空气进行单向输送,保证了循环的正常进行。(The invention discloses an energy-saving electric cabinet with a circulating cooling structure, and relates to the technical field of electric cabinets; the four check valves are respectively and fixedly arranged in the openings of the left side wall and the right side wall of the air circulation cavity; the two fixing plates are respectively and movably arranged in the air circulation cavities at the left side and the right side; the number of the rubber sealing rings is two, the rubber sealing rings are fixedly sleeved on the peripheral walls of the fixing plates on the left side and the right side respectively, and the outer side walls of the rubber sealing rings are arranged in a manner of abutting against the inner side walls of the air circulation cavity; the eccentric rotating rod is fixedly arranged on an output shaft of the driving motor; the adjusting column is fixedly arranged on the upper side surface of the front end of the eccentric rotating rod, and the upper end of the adjusting column is movably inserted in the kidney-shaped groove; the semiconductor refrigerating sheet is fixedly arranged on the inner bottom surface of the air circulation cavity on the right side; the left and right sides of electric cabinet is provided with the cavity that is used for steam to spill out and refrigeration cooling respectively, simultaneously, can realize that the inside air of box carries out one-way transport, has guaranteed the normal clear of circulation.)

1. An energy-saving electric cabinet with a circulating cooling structure comprises a box body (1), supporting legs (2) and a box door (3); supporting legs (2) are fixedly arranged on four corners of the bottom surface of the box body (1), the box body (1) is of a hollow structure with an opening at the front side, and a box door (3) is rotatably arranged at the opening end at the front side of the box body (1) through a hinge; a partition plate (4) is fixedly arranged in the box body (1) at the left side and the right side of the box door (3), and an air circulation cavity (5) is arranged between the partition plate (4) and the left side wall and the right side wall of the box body (1);

it is characterized in that it also comprises:

the number of the one-way valves (6) is four, and the four one-way valves (6) are respectively and fixedly arranged in openings of the left side wall and the right side wall of the air circulation cavity (5);

the number of the fixing plates (7) is two, and the fixing plates (7) are respectively movably arranged in the air circulation cavities (5) on the left side and the right side;

the number of the rubber sealing rings (8) is two, the rubber sealing rings (8) are fixedly sleeved on the peripheral walls of the fixing plates (7) on the left side and the right side respectively, and the outer side walls of the rubber sealing rings (8) are arranged in a manner of abutting against the inner side walls of the air circulation cavity (5);

the number of the first connecting rods (9) is four, and the four first connecting rods (9) are hinged to the rear side wall of the fixing plate (7) in pairs respectively;

the number of the second connecting rods (10) is four, the four second connecting rods (10) are respectively hinged with the other end of the first connecting rod (9), and the first connecting rods (9) and the second connecting rods (10) on the upper side and the lower side are symmetrically arranged;

the number of the first rotating shafts (11) is four, the first rotating shafts (11) are respectively and fixedly arranged in the middle of the other end of the second connecting rod (10) in a penetrating mode, and the left end and the right end of each first rotating shaft (11) are respectively in rotary connection with the left side wall and the right side wall of the air circulation cavity (5) through bearings;

the four transmission gears (12) are fixedly sleeved at the end parts of the second connecting rod (10) respectively, the central shaft of each transmission gear (12) is coaxially arranged with the central shaft of the first rotating shaft (11) in the middle of the same second connecting rod (10), and the transmission gears (12) at corresponding positions are meshed;

the two driving gears (13) are fixedly sleeved at the end part of the outer side of the first rotating shaft (11) positioned at the lower side respectively;

the two right-angle mounting seats (14) are respectively fixedly arranged on the left side wall and the right side wall of the box body (1);

two driving racks (15), wherein the two driving racks (15) are respectively and movably arranged on the upper side surface of the horizontal end of the right-angle mounting seat (14); the driving rack (15) is meshed with the driving gear (13);

the two connecting strips (16) are fixedly arranged on the rear end of the driving rack (15) respectively;

the adjusting rod (17) is arranged at the rear side of the box body (1), and the left end and the right end of the adjusting rod (17) are respectively fixedly connected with the rear ends of the connecting strips (16) at the left side and the right side; the middle part of the adjusting rod (17) is provided with a kidney-shaped groove (18);

the driving motor (19) is fixedly arranged on the rear side wall of the box body (1) through a motor support, and the driving motor (19) is connected with an external power supply;

the eccentric rotating rod (20), the said eccentric rotating rod (20) is fixedly arranged on output shaft of the driving motor (19);

the adjusting column (21) is fixedly arranged on the upper side surface of the front end of the eccentric rotating rod (20), and the upper end of the adjusting column (21) is movably inserted in the kidney-shaped groove (18);

the semiconductor refrigerating piece (22), the semiconductor refrigerating piece (22) is fixedly arranged on the inner bottom surface of the right air circulation cavity (5); the semiconductor refrigerating sheet (22) is connected with an external power supply.

2. The energy-saving electric cabinet with the circulating cooling structure as claimed in claim 1, wherein: the upper end of the adjusting column (21) is fixedly provided with a limiting cap (23), and the limiting cap (23) is clamped on the adjusting rod (17) on the upper side of the kidney-shaped groove (18); when the adjusting column (21) moves left and right in the kidney-shaped groove (18), the limiting cap (23) prevents the adjusting column (21) from slipping.

3. The energy-saving electric cabinet with the circulating cooling structure as claimed in claim 1, wherein: a guide groove (24) is formed in the upper side face of the horizontal end of the right-angle mounting seat (14), a guide strip (25) is fixedly arranged on the bottom face of the driving rack (15), and the guide strip (25) is arranged in the guide groove (24) in a sliding mode; the back and forth movement of the driving rack (15) is limited and guided by the matching sliding of the guide strip (25) and the guide groove (24).

4. The energy-saving electric cabinet with the circulating cooling structure as claimed in claim 1, wherein: a tension spring (26) is fixedly connected to the rear side wall of the vertical end of the right-angle fixing seat, and the other end of the tension spring (26) is fixedly connected with the front end of the driving rack (15); the stability of the driving rack (15) is kept through the reverse tensile force of the tension spring (26).

5. The energy-saving electric cabinet with the circulating cooling structure as claimed in claim 1, wherein: a heat dissipation box (27) is fixedly arranged on the right side of the bottom of the box body (1), the heat dissipation box (27) covers the bottom of the semiconductor refrigeration sheet (22), a plurality of heat dissipation fans (28) are fixedly arranged at equal intervals on the bottom of the heat dissipation box (27), and the plurality of heat dissipation fans (28) are connected with an external power supply; a plurality of heat conducting columns (29) are fixedly inserted at the bottom of the box body (1) at the bottom of the semiconductor refrigerating sheet (22), and the upper ends of the heat conducting columns (29) are in contact with the semiconductor refrigerating sheet (22); the heat generating end of the semiconductor refrigeration sheet (22) is radiated by a radiation fan (28).

6. The energy-saving electric cabinet with the circulating cooling structure as claimed in claim 1, wherein: a temperature sensor (30) is fixedly arranged on the rear side wall in the box body (1), and the temperature sensor (30) is connected with an external power supply; the temperature sensor (30) detects the temperature inside the box body (1) to prevent the temperature inside the box body (1) from being overhigh.

7. The working principle of the energy-saving electric cabinet with the circulating cooling structure according to claim 1 is characterized in that: when the device is used, an electrical element is installed inside a box body (1), then the whole device is fixed through supporting legs (2), when the inside of the box body (1) is cooled circularly, a semiconductor refrigerating sheet (22) is opened, the semiconductor refrigerating sheet (22) absorbs heat and emits heat at two ends of a couple of the semiconductor refrigerating sheet (22) respectively, the semiconductor refrigerating sheet (22) cools an air circulation cavity (5) on the right side, then a driving motor (19) is opened, the output end of the driving motor (19) drives an eccentric rotating rod (20) to rotate, the eccentric rotating rod (20) drives an adjusting column (21) to rotate, the adjusting column (21) is inserted inside a kidney-shaped groove (18), the adjusting column (21) drives the adjusting rod (17) to reciprocate back and forth, and forth on a right-angle mounting seat (14) by driving a rack, the driving gear (13) on the left side and the driving gear (13) on the right side are driven to rotate, the driving gear (13) drives the first rotating shaft (11) to rotate, the transmission gear (12) is driven to be meshed, the first connecting rod (9) is driven to rotate, the first connecting rod (9) is hinged with the second connecting rod (10), the fixing plate (7) is driven to reciprocate back and forth inside the air circulation cavity (5), the rubber sealing ring (8) seals the space between the fixing plate (7) and the air circulation cavity (5), when the fixing plate (7) moves backwards, the air circulation cavity (5) on the left side is sucked into the air circulation cavity (5) from the inside of the box body (1) under the action of the one-way valve (6), and the air circulation cavity (5) on the right side enters the inside of the air circulation cavity (5) from the outside of the box body (1); when the fixed plate (7) moves forwards, cold air in the right air circulation cavity (5) enters the box body (1), and hot air in the left air circulation cavity (5) is output to the outer side of the box body (1) to realize air circulation.

Technical Field

The invention relates to the technical field of electric cabinets, in particular to an energy-saving electric cabinet with a circulating cooling structure.

Background

With the continuous development of the power engineering technology, the structure and the heat dissipation of the electric cabinet are still to be improved, the requirements for improving the functionality and the convenience of the electric cabinet are also improved, and the development of electric cabinet products must adapt to the requirements of modern quality development; electric cabinet in the use, the inside of electric cabinet can produce a large amount of heats, generally adopts the air in the electric cabinet outside to cool down the inside of electric cabinet among the prior art, and the cooling effect is not obvious.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art and provide an energy-saving electric cabinet with a circulating cooling structure, which is simple in structure, reasonable in design and convenient to use.

In order to achieve the purpose, the invention adopts the technical scheme that: it comprises a box body, supporting legs and a box door; supporting legs are fixedly arranged at four corners of the bottom surface of the box body, the box body is of a hollow structure with an opening at the front side, and a box door is rotatably arranged at the opening end at the front side of the box body through a hinge; a partition board is fixedly arranged in the box body at the left side and the right side of the box door, and an air circulation cavity is formed between the partition board and the left side wall and the right side wall of the box body;

it also includes:

the four check valves are respectively and fixedly arranged in the openings of the left side wall and the right side wall of the air circulation cavity;

the two fixed plates are movably arranged in the air circulation cavities on the left side and the right side respectively;

the two rubber sealing rings are fixedly sleeved on the peripheral walls of the fixing plates on the left side and the right side respectively, and the outer side walls of the rubber sealing rings are arranged in a manner of abutting against the inner side walls of the air circulation cavity;

the four first connecting rods are hinged on the rear side wall of the fixing plate in pairs;

the four second connecting rods are hinged with the other ends of the first connecting rods respectively, and the first connecting rods and the second connecting rods on the upper side and the lower side are symmetrically arranged;

the first rotating shafts are four and are respectively fixedly arranged in the middle of the other end of the second connecting rod in a penetrating mode, and the left end and the right end of each first rotating shaft are respectively in rotary connection with the left side wall and the right side wall of the air circulation cavity through bearings;

the four transmission gears are fixedly sleeved at the end part of the second connecting rod respectively, the central shaft of each transmission gear is coaxially arranged with the central shaft of the first rotating shaft in the middle of the same second connecting rod, and the transmission gears at corresponding positions are meshed;

the two driving gears are fixedly sleeved at the end part of the outer side of the first rotating shaft positioned at the lower side respectively;

the two right-angle mounting seats are respectively and fixedly arranged on the left side wall and the right side wall of the box body;

two driving racks are movably arranged on the upper side face of the horizontal end of the right-angle mounting seat respectively; the driving rack is meshed with the driving gear;

the two connecting strips are respectively and fixedly arranged on the rear end head of the driving rack;

the adjusting rod is arranged at the rear side of the box body, and the left end and the right end of the adjusting rod are respectively fixedly connected with the rear ends of the connecting strips at the left side and the right side; the middle part of the adjusting rod is provided with a kidney-shaped groove;

the driving motor is fixedly arranged on the rear side wall of the box body through a motor bracket and is connected with an external power supply;

the eccentric rotating rod is fixedly arranged on an output shaft of the driving motor;

the adjusting column is fixedly arranged on the upper side surface of the front end of the eccentric rotating rod, and the upper end of the adjusting column is movably inserted in the kidney-shaped groove;

the semiconductor refrigerating piece is fixedly arranged on the inner bottom surface of the air circulation cavity on the right side; the semiconductor refrigerating sheet is connected with an external power supply.

Preferably, the upper end of the adjusting column is fixedly provided with a limiting cap which is clamped on the adjusting rod on the upper side of the kidney-shaped groove; when the adjusting column moves left and right in the kidney-shaped groove, the limiting cap prevents the adjusting column from slipping.

Preferably, a guide groove is formed in the upper side face of the horizontal end of the right-angle mounting seat, a guide strip is fixedly arranged on the bottom face of the driving rack, and the guide strip is arranged inside the guide groove in a sliding manner; the front and back movement of the driving rack is limited and guided by the matching sliding of the guide strip and the guide groove.

Preferably, the rear side wall of the vertical end of the right-angle fixing seat is fixedly connected with a tension spring, and the other end of the tension spring is fixedly connected with the front end of the driving rack; the stability of the driving rack is kept through the reverse tensile force of the tension spring.

Preferably, the right side of the bottom of the box body is fixedly provided with a heat dissipation box, the heat dissipation box is covered at the bottom of the semiconductor refrigeration sheet, the bottom of the heat dissipation box is fixedly provided with a plurality of heat dissipation fans at equal intervals, and the plurality of heat dissipation fans are connected with an external power supply; a plurality of heat conducting columns are fixedly inserted at the bottom of the box body at the bottom of the semiconductor refrigerating sheet, and the upper ends of the heat conducting columns are in contact with the semiconductor refrigerating sheet; the heating end of the semiconductor refrigeration piece is radiated by the cooling fan.

Preferably, a temperature sensor is fixedly arranged on the rear side wall in the box body, and the temperature sensor is connected with an external power supply; carry out temperature measurement to the inside of box through temperature sensor, prevent that the box is internal temperature is too high.

The working principle of the invention is as follows: when the device is used, an electric element is installed inside a box body, then the whole device is fixed through supporting legs, when the inside of the box body is circularly cooled, a semiconductor refrigerating sheet is opened, the semiconductor refrigerating sheet absorbs heat and emits heat at two ends of a couple of the semiconductor refrigerating sheet respectively, the semiconductor refrigerating sheet cools an air circulation cavity on the right side, then a driving motor is opened, an output end of the driving motor drives an eccentric rotating rod to rotate, the eccentric rotating rod drives an adjusting column to rotate, the adjusting column drives the adjusting rod to reciprocate back and forth as the adjusting column is inserted inside a kidney-shaped groove, a rack is driven to reciprocate back and forth on a right-angle mounting seat, driving gears on the left side and the right side are driven to rotate, the driving gears drive a first rotating shaft to rotate, a transmission gear is driven to mesh, a first connecting rod is driven to rotate, and the first connecting rod is hinged with a second connecting rod, the fixed plate is driven to reciprocate back and forth in the air circulation cavity, the rubber sealing ring seals the space between the fixed plate and the air circulation cavity, when the fixed plate moves backwards, the air circulation cavity on the left side is sucked into the air circulation cavity from the interior of the box body under the action of the one-way valve, and the air circulation cavity on the right side enters the air circulation cavity from the outer side of the box body; when the fixed plate moves forwards, cold air in the right air circulation cavity enters the box body, and hot air in the left air circulation cavity is output to the outer side of the box body, so that air circulation is realized.

Compared with the prior art, the invention has the beneficial effects that:

1. the left side and the right side of the box body are respectively provided with an air circulation cavity, the air circulation cavity on the left side is used for hot air emission, and the air circulation cavity on the right side is used for refrigeration and cooling;

2. the one-way valves on the left side and the right side of the air circulation cavity realize one-way conveying of air in the box body, and normal operation of circulation is guaranteed;

3. the semiconductor refrigeration piece cools down the inside air in air cycle chamber, and the air temperature of circulation is lower for the cooling effect is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is an enlarged view of a portion C in fig. 3.

Fig. 5 is a schematic structural view of the fixing plate, the rubber seal ring, the first connecting rod and the second connecting rod of the present invention.

Fig. 6 is a schematic view of the right angle mount, drive rack and guide bar configuration of the present invention.

Fig. 7 is a schematic view of a connection structure of the adjusting column and the limit cap of the invention.

Description of reference numerals:

the box body 1, supporting legs 2, a box door 3, a partition plate 4, an air circulation cavity 5, a one-way valve 6, a fixing plate 7, a rubber sealing ring 8, a first connecting rod 9, a second connecting rod 10, a first rotating shaft 11, a transmission gear 12, a driving gear 13, a right-angle mounting seat 14, a driving rack 15, a connecting strip 16, an adjusting rod 17, a kidney-shaped groove 18, a driving motor 19, an eccentric rotating rod 20, an adjusting column 21, a semiconductor refrigerating sheet 22, a limiting cap 23, a guide groove 24, a guide strip 25, a tension spring 26, a heat dissipation box 27, a heat dissipation fan 28, a heat conduction column 29 and a temperature sensor 30.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 7, the technical solution adopted by the present embodiment is: the box comprises a box body 1, supporting legs 2 and a box door 3; four corners of the bottom surface of the box body 1 are fixedly provided with supporting legs 2 through bolts, the box body 1 is of a hollow structure with an opening at the front side, and the opening end at the front side of the box body 1 is rotatably provided with a box door 3 through a hinge; a partition plate 4 is fixedly arranged in the box body 1 at the left side and the right side of the box door 3 through bolts, and an air circulation cavity 5 is arranged between the partition plate 4 and the left side wall and the right side wall of the box body 1;

it also includes:

the number of the one-way valves 6 is four, the four one-way valves 6 are respectively fixedly arranged in openings of the left side wall and the right side wall of the air circulation cavity 5 through bolts, and the flow direction of air flow is controlled by the one-way valves 6;

the number of the fixing plates 7 is two, and the fixing plates 7 are respectively movably arranged in the air circulation cavities 5 on the left side and the right side;

the number of the rubber sealing rings 8 is two, the rubber sealing rings 8 are respectively sleeved on the peripheral walls of the fixing plates 7 on the left side and the right side through adhesive fixing, and the outer side walls of the rubber sealing rings 8 are arranged in a manner of abutting against the inner side walls of the air circulation cavity 5;

the number of the first connecting rods 9 is four, and the four first connecting rods 9 are hinged to the rear side wall of the fixing plate 7 in pairs;

the number of the second connecting rods 10 is four, the second connecting rods 10 are respectively hinged with the other end of the first connecting rod 9, and the first connecting rod 9 and the second connecting rod 10 on the upper side and the lower side are symmetrically arranged;

the number of the first rotating shafts 11 is four, the first rotating shafts 11 are fixedly welded in the middle of the other end of the second connecting rod 10 in a penetrating mode respectively, and the left end and the right end of each first rotating shaft 11 are rotatably connected with the left side wall and the right side wall of the air circulation cavity 5 through bearings respectively;

four transmission gears 12 are arranged and are respectively fixedly sleeved at the end part of the second connecting rod 10, the central shaft of each transmission gear 12 is coaxially arranged with the central shaft of the first rotating shaft 11 in the middle of the same second connecting rod 10, and the transmission gears 12 at corresponding positions are meshed;

the number of the driving gears 13 is two, and the driving gears 13 are respectively fixedly welded and sleeved on the end part of the outer side of the first rotating shaft 11 positioned on the lower side;

the number of the right-angle mounting seats 14 is two, and the two right-angle mounting seats 14 are respectively fixedly welded on the left side wall and the right side wall of the box body 1;

two driving racks 15 are arranged and movably arranged on the upper side face of the horizontal end of the right-angle mounting seat 14 respectively; the driving rack 15 is meshed with the driving gear 13;

two connecting strips 16 are arranged, and the two connecting strips 16 are respectively fixedly welded on the rear end head of the driving rack 15;

the adjusting rod 17 is arranged at the rear side of the box body 1, and the left end and the right end of the adjusting rod 17 are fixedly welded with the rear ends of the connecting strips 16 at the left side and the right side respectively; the middle part of the adjusting rod 17 is provided with a kidney-shaped groove 18;

the driving motor 19 is fixedly arranged on the rear side wall of the box body 1 through a motor bracket and a bolt, and the driving motor 19 is connected with an external power supply;

the eccentric rotating rod 20 is fixedly arranged on an output shaft of the driving motor 19 through a coupler;

the adjusting column 21 is fixedly welded on the upper side surface of the front end of the eccentric rotating rod 20, and the upper end of the adjusting column 21 is movably inserted in the kidney-shaped groove 18;

the semiconductor refrigerating piece 22 is fixedly arranged on the inner bottom surface of the right air circulation cavity 5 through bolts; the semiconductor refrigerating plate 22 is connected with an external power supply.

Preferably, the upper end of the adjusting column 21 is fixedly provided with a limiting cap 23 through a bolt, and the limiting cap 23 is clamped on the adjusting rod 17 on the upper side of the kidney-shaped groove 18; when the adjusting column 21 moves left and right in the kidney-shaped groove 18, the limiting cap 23 prevents the adjusting column 21 from slipping off.

Preferably, a guide groove 24 is formed in the upper side surface of the horizontal end of the right-angle mounting seat 14, a guide strip 25 is fixedly arranged on the bottom surface of the driving rack 15 through a bolt, and the guide strip 25 is slidably arranged in the guide groove 24; the back and forth movement of the driving rack 15 is limited and guided by the sliding fit of the guide bar 25 and the guide groove 24.

As a preferable scheme, furthermore, a tension spring 26 is fixedly welded on the rear side wall of the vertical end of the right-angle fixing seat, and the other end of the tension spring 26 is fixedly connected with the front end of the driving rack 15; the stability of the drive rack 15 is maintained by the counter-tension of the tension spring 26.

Preferably, a heat dissipation box 27 is fixedly arranged on the right side of the bottom of the box body 1 through bolts, the heat dissipation box 27 covers the bottom of the semiconductor refrigeration sheet 22, a plurality of heat dissipation fans 28 are fixedly arranged at equal intervals on the bottom of the heat dissipation box 27 through bolts, and the plurality of heat dissipation fans 28 are connected with an external power supply; a plurality of heat conducting columns 29 are fixedly inserted at the bottom of the box body 1 at the bottom of the semiconductor refrigerating sheet 22, and the upper ends of the heat conducting columns 29 are in contact with the semiconductor refrigerating sheet 22; the heat generating end of the semiconductor cooling plate 22 is radiated by the heat radiation fan 28.

Preferably, a temperature sensor 30 is fixedly arranged on the rear side wall inside the box body 1 through bolts, and the temperature sensor 30 is connected with an external power supply; the temperature sensor 30 detects the temperature inside the case 1, thereby preventing the temperature inside the case 1 from being excessively high.

The specific use models of the driving motor 19, the temperature sensor 30 and the semiconductor chilling plates 22 are directly purchased from the market and installed and used according to the use requirements.

The working principle of the specific embodiment is as follows: when the device is used, an electrical element is installed inside a box body 1, then the whole device is fixed through supporting legs 2, when the inside of the box body 1 is cooled circularly, a semiconductor refrigerating sheet 22 is opened, the semiconductor refrigerating sheet 22 absorbs heat and emits heat at two ends of a galvanic couple of the semiconductor refrigerating sheet 22 respectively, the semiconductor refrigerating sheet 22 cools an air circulation cavity 5 on the right side, then a driving motor 19 is opened, an output end of the driving motor 19 drives an eccentric rotating rod 20 to rotate, the eccentric rotating rod 20 drives an adjusting column 21 to rotate, the adjusting column 21 is inserted inside a waist-shaped groove 18, the adjusting column 21 drives an adjusting rod 17 to reciprocate back and forth, a rack is driven to reciprocate back and forth on a right-angle mounting seat 14, driving gears 13 on the left side and the right side are driven to rotate, the driving gears 13 drive a rotating shaft 11 to rotate, and a transmission gear 12 is driven to be meshed, the first connecting rod 9 is driven to rotate, the first connecting rod 9 is hinged with the second connecting rod 10, the fixing plate 7 is further driven to reciprocate back and forth in the air circulation cavity 5, the rubber sealing ring 8 seals the space between the fixing plate 7 and the air circulation cavity 5, when the fixing plate 7 moves backwards, the air circulation cavity 5 on the left side is sucked into the air circulation cavity 5 from the inside of the box body 1 under the action of the one-way valve 6, and the air circulation cavity 5 on the right side enters the air circulation cavity 5 from the outside of the box body 1; when the fixing plate 7 moves forward, the cold air in the right air circulation chamber 5 enters the inside of the box body 1, and the hot air in the left air circulation chamber 5 is output to the outside of the box body 1, so that air circulation is realized.

After adopting above-mentioned structure, this embodiment beneficial effect does:

1. the left side and the right side of the box body 1 are respectively provided with an air circulation cavity 5, the air circulation cavity 5 on the left side is used for hot gas emission, and the air circulation cavity 5 on the right side is used for refrigeration and cooling;

2. the one-way valves 6 on the left side and the right side of the air circulation cavity 5 realize one-way conveying of air in the box body 1, and normal operation of circulation is guaranteed;

3. the semiconductor refrigerating sheet 22 cools the air inside the air circulation cavity 5, and the temperature of the circulated air is lower, so that the cooling effect is better;

4. the heat radiation fan 28 radiates heat to the heating end of the semiconductor refrigeration piece 22, so that the stable operation of the semiconductor refrigeration piece 22 is ensured.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.