Incubator with precise temperature control

Abstract

The application discloses a culture box capable of precisely controlling temperature, which comprises a cabinet body and a top cover, the front end of the cabinet body is provided with a cabinet door, the four corners of the cabinet body are provided with stand columns, the bottom end is provided with a bottom plate, the inside of the cabinet body is provided with side vertical rods on both sides, the back side is provided with a hanging buckle plate, the front end of the top cover is provided with a display screen, the top side of the top cover is provided with a ceiling, a groove is arranged between the top cover and the ceiling, the surface of the top cover is provided with an air outlet in the middle, and the inside of the cabinet body further comprises a culture plate. Through the design of the internal heat preservation degree, the heat preservation of the middle part of the culture plate and the three-section heat preservation strategy formed around, the entering air can be continuously circulated in the cabinet and the cabinet layer, and the phenomenon of high internal temperature and low surface temperature is formed, so that the internal culture plate is better heat preserved and the energy consumption is lower.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of biological culture, in particular to a culture box capable of precise temperature control. BACKGROUND

[0002] The culture box is a kind of constant temperature cavity, and has many different classifications according to its own function, such as constant temperature incubator and plant incubator, etc. The plant incubator or artificial climate chamber commonly used in biological culture can quickly cultivate the growth of plants. For example, the prior art disclosed in patent No. CN107155724B improves the sealing condition of the similar plant incubator.

[0003] However, the existing plant incubator has a reduced sensitivity to temperature after long-term use, especially the heat preservation effect is greatly reduced, and finally the temperature rise and fall cannot be accurately controlled. For example, under the influence of external environment or frequent opening and closing of the cabinet door, due to the single air flow direction of the pipeline itself, the temperature measurement in the same area in the culture box is inaccurate, which causes the plants cultivated in the same layer to be greatly affected by temperature, resulting in errors in the final test data. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the defects of the prior art and provide a culture box capable of precise temperature control.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme:

[0006] The present application provides a culture box capable of precise temperature control, which comprises a cabinet body and a top cover, the front end of the cabinet body is provided with a cabinet door, the four corners of the cabinet body are provided with vertical columns, the bottom end is provided with a bottom plate, the inside of the cabinet body is provided with side vertical rods on both sides, and the back side is provided with a hanging buckle plate, the front end of the top cover is provided with a display screen, the top side of the top cover is provided with a ceiling, a groove is arranged between the top cover and the ceiling, the surface of the top cover is provided with an air outlet in the middle, and the inside of the cabinet body further comprises a culture plate.

[0007] The left and right sides and the bottom of the rear side of the cabinet body are provided with air outlets, the inside of the side wall of the cabinet body comprises an inner air duct and an outer air duct, the outer air duct is connected to the air outlet, a vacuum cavity is arranged between the inner air duct and the outer air duct, the inside of the cabinet body is provided with a raised negative pressure machine at the bottom side, the air outlet of the negative pressure machine is located at the inclined position of the front and rear sides, and an inclined air pump is arranged at the top, the air pump further comprises a dust screen, the inside of the top cover comprises a circulating air duct, the circulating air duct comprises an air extractor, the circulating air duct is connected to the air pump, the inner air duct and the outer air duct, and is used for sucking hot air from the inner air duct and discharging from the outer air duct, and the inner air duct and the outer air duct are separated by the vertical column at the corner.

[0008] As a preferred technical scheme of the present application, the temperature air outlet is spirally arranged from bottom to top, and the temperature air outlet penetrates to the inner air duct, the circulating air duct further comprises a humidifier and an air filter device at the air inlet, and the cabinet further comprises a humidity sensor, a temperature sensor and a dust raising sensor.

[0009] As a preferred technical scheme of the present application, the circulating air duct comprises an input pipe and an output pipe, both of which are C-shaped structures, the openings of which are directed to the cabinet door side, and the input pipe is located inside, the cross section of the input pipe and the output pipe is flat, the bottom end of the input pipe is connected to the inner air duct, and the output pipe is connected to the outer air duct, the middle top side of three sides of the input pipe is provided with a connecting pipe extending to the center, and a top pipe is connected at the joint, the top end of the top pipe is connected with an air extractor, and the bottom end of the circulating air duct is further provided with a cover plate, the middle of the cover plate penetrates an air extraction pump, and the surface of the air extraction pump is provided with a through pipe from the input pipe, the through pipe penetrates from the opening of the input pipe and is connected to the output pipe, and the output pipe is also a three-sided structure.

[0010] As a preferred technical scheme of the present application, the air extractor further comprises a heating module, the heating module is a resistance heating type, and the air outlet is downwardly inclined.

[0011] As a preferred technical scheme of the present application, the vacuum cavity is internally provided with a liquid, and the liquid is brine or oil.

[0012] As a preferred technical scheme of the present application, the top of the rectangular pipe structure of the three sides of the input pipe and the output pipe is provided with an air flow groove, a connecting head is mounted at the top end of the air flow groove, the connecting head is connected with the through pipe or the connecting pipe, a pipe cover is arranged at the bottom end of the connecting head, a wind pipe is arranged at the bottom end of the pipe cover, the wind pipes are arranged at equal distances, and the top of the wind pipes is connected to the connecting head.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] 1: The present application designs the internal heat preservation degree, preserves the heat in the middle of the cultivation tray, and forms a three-section heat preservation strategy around, so that the entering air can continuously circulate in the cabinet and the cabinet layer, and the internal temperature is high and the surface temperature is low, so as to form better heat preservation of the internal cultivation tray and lower energy consumption.

[0015] 2: The application further provides an air inlet and outlet duct at the top and a negative pressure machine at the bottom, so that the air outlet of the temperature air outlet at the inner air duct is higher, and the upper part constitutes a circulating air duct for the operation effect of the cabinet body, which can change the linear air flow into a planar air flow with the air flow groove, so that the innermost layer is insulated, and more air flow can be discharged from the inner wall, and the circulating adjustment effect can be completed according to the actual demand. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the application without limiting the application. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the application;

[0018] Figure 2 is a schematic diagram of the cross-sectional structure of the application;

[0019] Figure 3 is a split diagram of the top cover structure of the application;

[0020] Figure 4 is a schematic diagram of the air flow groove structure of the application;

[0021] In the drawings: 1, cabinet; 101, top cover; 102, cabinet door; 103, vertical column; 104, bottom plate; 105, side vertical rod; 106, hanging buckle plate; 107, display screen; 108, ceiling; 109, groove; 110, air outlet; 111, culture plate; 2, inner air duct; 201, outer air duct; 202, vacuum cavity; 203, negative pressure machine; 204, air pump; 3, temperature air outlet; 4, input pipe; 401, connecting pipe; 402, top pipe; 403, air extractor; 404, cover plate; 403, air extractor; 5, output pipe; 501, through pipe; 6, air flow groove; 601, connecting head; 602, pipe cover; 603, air pipe. DETAILED DESCRIPTION

[0022] The preferred embodiments of the application are described below in conjunction with the accompanying drawings, it should be understood that the preferred embodiments described herein are only used to illustrate and explain the application, and do not limit the application.

[0023] Example 1

[0024] As Figures 1-4As shown, the present application provides a culture box with precise temperature control, which comprises a cabinet body 1 and a top cover 101, the front end of the cabinet body 1 is provided with a cabinet door 102, the four corners of the cabinet body 1 are provided with vertical columns 103, the bottom end is installed with a bottom plate 104, the inside of the cabinet body 1 is provided with side vertical rods 105 on both sides, the rear side is installed with a hanging buckle plate 106, the front end of the top cover 101 is provided with a display screen 107, the top side of the top cover 101 is installed with a ceiling 108, a groove 109 is arranged between the top cover 101 and the ceiling 108, the surface of the top cover 101 is provided with an air outlet 110 in the middle, and the inside of the cabinet body 1 further comprises a culture plate 111.

[0025] The left and right sides and the bottom of the rear side of the cabinet body 1 are provided with air outlets 110, the inside of the side wall of the cabinet body 1 comprises an inner air duct 2 and an outer air duct 201, the outer air duct 201 is connected to the air outlet 110, a vacuum cavity 202 is arranged between the inner air duct 2 and the outer air duct 201, the inside of the bottom of the cabinet body 1 is provided with a raised negative pressure machine 203, the air outlet of the negative pressure machine 203 is located at the inclined position of the front and rear sides, and an inclined air pump 204 is arranged at the top, the air pump 204 further comprises a dust screen, the inside of the top cover 101 comprises a circulating air duct, the circulating air duct comprises an air extractor 403, the circulating air duct is connected to the air pump 204, the inner air duct 2 and the outer air duct 201 respectively, for sucking hot air from the inner air duct 2 and discharging from the outer air duct 201, the inner air duct 2 and the outer air duct 201 are separated by the vertical column 103 at the corner.

[0026] The inner wall of the cabinet body 1 at the left and right sides and the rear side is provided with a temperature air outlet 3, the temperature air outlet 3 is arranged in a spiral from bottom to top, and the temperature air outlet 3 penetrates to the inner air duct 2, the circulating air duct further comprises a humidifier and an air filter device at the air inlet, the inside of the cabinet body 1 further comprises a humidity sensor, a temperature sensor and a dust raising sensor.

[0027] The circulating air duct comprises an input pipe 4 and an output pipe 5, the input pipe 4 and the output pipe 5 are both C-shaped structures, the openings are both directed to the cabinet door 102 side, the input pipe 4 is located inside, the cross section of the input pipe 4 and the output pipe 5 is flat, the bottom end of the input pipe 4 is connected to the inner air duct 2, the output pipe 5 is connected to the outer air duct 201, the middle top side of three sides of the input pipe 4 is provided with a connecting pipe 401, the connecting pipe 401 extends to the center, a top pipe 402 is connected at the joint, the top end of the top pipe 402 is connected with the air extractor 403, the bottom end of the circulating air duct is further provided with a cover plate 404, the middle of the cover plate 404 penetrates the air pump 204, the surface of the air pump 204 is provided with a penetrating pipe 501 from the position of the input pipe 4, the penetrating pipe 501 penetrates from the opening of the input pipe 4 to the output pipe 5, and the output pipe 5 is also a three-sided structure.

[0028] The air extractor 403 further comprises a heating module, the heating module is a resistance heating type, and the air outlet 110 is arranged in a downward inclined manner.

[0029] The vacuum chamber 202 is filled with liquid, which is either salt water or oil.

[0030] The top of the rectangular tubular structure on three sides of the input pipe 4 and the output pipe 5 is provided with an airflow groove 6. The top of the airflow groove 6 is equipped with a connector 601, which is connected to the through pipe 501 or the connecting pipe 401. The bottom of the connector 601 is provided with a pipe cover 602, and the bottom of the pipe cover 602 is provided with an air duct 603. The air ducts 603 are arranged at equal intervals, and the top of each air duct 603 is connected to the connector 601.

[0031] Specifically, the overall structure is as follows: Figure 1 As shown, similar to other cabinet structures, it is equipped with a conventional cabinet 1 and includes columns 103, a base plate 104, a cabinet door 102, and a top cover 101. Inside the cabinet 1, there are side vertical rods 105 and hook plates 106 for fixing the height of the cultivation tray 111. The difference from the conventional structure is that it is further equipped with a top canopy 108, a groove 109, and an air outlet 110 on the side. At the same time, a display screen 107 is installed on the top cover 101, and a control module is installed in conjunction with the display screen 107.

[0032] On the inner wall of cabinet 1, such as Figure 2 As shown, a C-shaped inner air duct 2 and outer air duct 201 are arranged in a semi-enclosed manner. Hot air is drawn in through the top circulating air duct and enters the inner air duct 2. A sandwich is formed between the inner air duct 2 and the vacuum chamber 202. Because the vacuum chamber 202 is in a vacuum state and is filled with oil or salt water, the temperature is higher near the inner air duct 2 and lower near the outer air duct 201. After entering the bottom of the inner air duct 2, the negative pressure machine 203 raised at the bottom continuously draws the airflow from the inner air duct 2 into the cabinet and discharges it. Because the discharge direction is oblique, it will be discharged upward from the front, back, left and right sides of the inner wall of the cabinet 1. Even if the cabinet door 102 is opened, the airflow in the front wall will block most of the airflow from the outside. The cold air directly enters the cabinet; the upward-exhausting airflow is directly drawn back into the circulating air duct by the top air pump 204, and then discharged from the outer air duct 201 from top to bottom, that is, the air is discharged from the air outlet 110, thereby realizing the circulation of air inside the cabinet. For example, the innermost inner air duct 2 is always in the hottest state, and hot air is directly discharged from the inside, while the outermost outer air duct 201 is at a slightly lower temperature. At the same time, the temperature difference between the front and back is separated by the vacuum chamber 202 and the liquid filled inside. This reduces the influence of the external environment, reduces the overall insulation material and thickness of the cabinet 1, and increases the overall insulation performance from the inside to the outside.

[0033] And on top of that, there is also designed with temperature air outlet 3 structure, in the cabinet 1 inner wall in the form of a spiral structure in the inner air duct 2 on the slot, located in the hanging buckle plate 106 is in the form of an array of holes, set in the form of a column of air duct system, in the circulating air duct from the inner air duct 2 input air is large or the same time, negative pressure machine 203 will discharge hot air, while the temperature air outlet 3 will also discharge hot air flow, and because it is set to the lower part, so the hot air flow will be directly towards the middle of the cultivation plate 111, so that the temperature around the cultivation plate and the middle temperature is always in the same state, so as to realize more accurate temperature control; when needed, it can also be based on the internal demand to form the internal circulation of the cabinet, that is, when the negative pressure machine 203 draws in the air flow is greater than the circulating air duct, the temperature air outlet 3 will continuously draw air from the inner air duct 2 in the cabinet again, and mix with other temperature air. This way can form the bottom power consumption form of the whole cabinet 1, and is to meet the requirement of sudden power failure or the need for a large amount of internal circulation of air in the cabinet. At this time, the top air pump 204 will also reduce the power consumption; when needed, the power of the air pump 204 can be increased, so that the internal circulation is increased while the external circulation is still increased, and the whole structure of the stroke control is controlled by the control module contained in the display screen 107. The control module contains conventional micro control chip, clock chip and other electronic and electrical structures.

[0034] Because the whole device is small in size, the top needs to be designed to match the structure of the inner air duct 2 and the outer air duct 201, so the inner air duct 2 and the outer air duct 201 are designed in the form of Figure 3 , that is, the inner air duct 2 mainly inputs hot air flow through the input pipe 4, and the top end of the input pipe 4 is provided with a connecting pipe 401 in the form of L structure, and a top pipe 402 structure is arranged at the connection, which draws air from the upper layer at the groove 109 through the air suction machine 403, or directly in the form of Figure 3 welding pipe structure, the air flow from the input pipe 4 near the inner side is input; because the air suction machine 403 connected with the air pump 204 is mainly for pressurization, after receiving the air input, the air suction machine 403 will be discharged from the outer air duct 201 through the through pipe 501 connected with the four-way pipe and the through pipe 501, and the input pipe 4 is provided with a corresponding hole slot at the corresponding position for the installation of the through pipe 501, and then the through pipe 501 discharges the input air again to realize the auxiliary function of the circulating air duct.

[0035] Because the conventional air duct structure is usually in the form of a pipe, some are also like Figure 3The connecting pipe 401 or the through pipe 501 is flat, so it cannot adapt to the width of the input pipe 4 and the input pipe 5, and the air flow groove 6 is arranged at different transverse surfaces of the input pipe 4 and the output pipe 5, that is, the air flow entering the input pipe 4 and the output pipe 5 mainly enters from the connecting head 601 of the air flow groove 6 and is discharged from the air pipe 603 under the pipe cover 602, the air pipe 603 is connected with the connecting head 601 in a cluster shape, or the structure of the air pipe 603 at the top end is arranged in an array shape, and the gap between the top end and the top of the pipe cover 602 is small, so that the air flow is discharged in a surface shape, thereby ensuring the temperature of the inner wall and the outer wall of the cabinet 1, and the columnar structure at the temperature air outlet 3 can also be used in cooperation.

[0036] Further, the circulating air duct can also adopt other air duct structures to form an inner and outer output form, but the circulating air duct under the application adopts the through pipe 501 structure through the inside of the input pipe 4, when the through pipe 501 is directly welded as a non-detachable structure to the inner wall structure of the hole groove of the input pipe 4, the input pipe 4 can also form a single-layer spaced heating form to the through pipe 501, so that the temperature difference between the inner air duct 2 and the outer air duct 202 is smaller, and the through pipe 501 is arranged in a point shape to contact the input pipe 4, and the flow-shaped contact time of the input pipe 4 is short, so that the temperature difference between the through pipe 501 inside and the input pipe 4 is large, and the pipe structure or the temperature balance of the input pipe 4 itself is not affected.

[0037] Finally, it should be noted that: the above only describes the preferred embodiments of the application and is not used to limit the application, although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A precision temperature-controllable incubator, comprising a cabinet body (1) and a top cover (101), the front end of the cabinet body (1) is provided with a cabinet door (102), the four corners of the cabinet body (1) are provided with stand columns (103), the bottom end is installed with a bottom plate (104), the inside of the cabinet body (1) is provided with side vertical rods (105) on both sides, the rear side is installed with a hanging buckle plate (106), the front end of the top cover (101) is provided with a display screen (107), characterized in that, The top side of the top cover (101) is provided with a ceiling (108), and a groove (109) is arranged between the top cover (101) and the ceiling (108); the surface of the middle part of the top cover (101) is provided with an air outlet (110); and the inside of the cabinet (1) further comprises a culture plate (111); The left and right sides and the rear bottom of the cabinet (1) are provided with air outlets (110); the inner wall of the cabinet (1) comprises an inner air duct (2) and an outer air duct (201); the outer air duct (201) is connected to the air outlet (110); a vacuum cavity (202) is arranged between the inner air duct (2) and the outer air duct (201); the inside bottom of the cabinet (1) is provided with a raised negative pressure machine (203); the air outlet of the negative pressure machine (203) is located at the inclined position of the front and rear sides; the top of the negative pressure machine (203) is provided with an inclined air pump (204); the air pump (204) further comprises a dust screen; the inside of the top cover (101) comprises a circulating air duct; the circulating air duct comprises an air extractor (403); the circulating air duct is connected to the air pump (204), the inner air duct (2) and the outer air duct (201) respectively; the circulating air duct is used for sucking in hot air from the inner air duct (2) and discharging the hot air from the outer air duct (201); the inner air duct (2) and the outer air duct (201) are separated by a stand column (103) at the corner; the circulating air duct comprises an input pipe (4) and an output pipe (5); the input pipe (4) and the output pipe (5) are both C-shaped structures; the openings of the input pipe (4) and the output pipe (5) are both directed to the side of the cabinet door (102); the input pipe (4) is located inside; the cross section of the input pipe (4) and the output pipe (5) is flat; the bottom end of the input pipe (4) is connected to the inner air duct (2); the output pipe (5) is connected to the outer air duct (201); the middle part of three sides of the input pipe (4) is provided with a connecting pipe (401); the connecting pipe (401) extends to the center; the connecting pipe (401) is connected to a top pipe (402) at the joint; the top end of the top pipe (402) is connected to the air extractor (403); the bottom end of the circulating air duct is further provided with a cover plate (404); the middle part of the cover plate (404) penetrates the air pump (204); the surface of the air pump (204) is provided with a penetrating pipe (501) from the input pipe (4); the penetrating pipe (501) penetrates the input pipe (4) and is connected to the output pipe (5); the output pipe (5) is also a three-sided structure.

2. The precision temperature-controlled incubator of claim 1, wherein, The inner wall of the cabinet (1) at the left and right sides and the rear side is provided with a temperature air outlet (3); the temperature air outlet (3) is arranged in a spiral shape from bottom to top; the temperature air outlet (3) penetrates the inner air duct (2); the circulating air duct further comprises a humidifier and an air filter device at the air inlet; the inside of the cabinet (1) further comprises a humidity sensor, a temperature sensor and a dust raising sensor.

3. The precision temperature-controlled incubator of claim 1, wherein, The air extractor (403) further comprises a heating module; the heating module is a resistance heating type; the air outlet (110) is arranged in a downward inclined manner.

4. The precision temperature-controlled incubator of claim 1, wherein, The vacuum cavity (202) is provided with a liquid; the liquid is brine or oil.

5. The precision temperature-controlled incubator of claim 1, wherein, The rectangular tubular structure of the three sides of the input pipe (4) and the output pipe (5) is provided with an air flow groove (6) at the top, the top end of the air flow groove (6) is provided with a connecting head (601), the connecting head (601) is connected with the penetrating pipe (501) or the connecting pipe (401), the bottom end of the connecting head (601) is provided with a pipe cover (602), the bottom end of the pipe cover (602) is provided with an air pipe (603), the air pipes (603) are arranged at equal distances, and the top of the air pipes (603) is connected to the connecting head (601).

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