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CN-224230489-U - Constant temperature heat preservation cabinet

CN224230489UCN 224230489 UCN224230489 UCN 224230489UCN-224230489-U

Abstract

The utility model provides a constant-temperature heat preservation cabinet which comprises a cabinet body, wherein a lower shell is arranged at an opening at the top of the cabinet body, an upper shell is spliced above the lower shell, an installation space formed by the lower shell and the upper shell is communicated with the cabinet body, heating mechanisms and semiconductor refrigerating sheets are distributed left and right on the inner side of the installation space, the heating mechanisms and the semiconductor refrigerating sheets and the lower shell form a heating space and a cooling space, the upper shell and the lower shell are arranged at the top of the cabinet body, the heating mechanisms and the semiconductor refrigerating sheets are distributed left and right in the space formed by the upper shell and the lower shell, and meanwhile, the heating mechanisms, the semiconductor refrigerating sheets and an air pump respectively form an air circulation channel, so that air can be pumped to the heating space or the cooling space through the air pump according to requirements, the temperature at the inner side of the cabinet body is at a certain numerical value, heat preservation treatment of food is realized, and the practicability of the device is improved.

Inventors

  • LV XUEWU

Assignees

  • 福建省约翰丹尼科技有限公司

Dates

Publication Date
20260512
Application Date
20250721

Claims (10)

  1. 1. A constant-temperature heat preservation cabinet is characterized by comprising a cabinet body, wherein a lower shell is installed at an opening at the top of the cabinet body, an upper shell is spliced above the lower shell, an installation space formed by the lower shell and the upper shell is communicated with the cabinet body, heating mechanisms and semiconductor refrigerating sheets are distributed on the left side and the right side of the inner side of the installation space, the heating mechanisms, the semiconductor refrigerating sheets and the lower shell form a heating space and a cooling space, and an air pump located in the installation space blows air to circulate into the cabinet body through the heating space or the cooling space.
  2. 2. A constant temperature cabinet according to claim 1, wherein a second partition plate is provided at an inner side of the installation space, the second partition plate including a horizontal plate and a vertical plate vertically installed at a lower end portion of the horizontal plate, the horizontal plate and the vertical plate enclosing a heating space with the lower case.
  3. 3. The constant temperature heat preservation cabinet according to claim 2, wherein a first partition board is arranged on the inner side of the heating space, the first partition board is of an L-shaped structure, the first partition board separates the heating space into two areas which are communicated up and down, and a plurality of dispersing holes are evenly distributed at the horizontal section of the first partition board.
  4. 4. A constant temperature cabinet according to claim 3, wherein the heating mechanism comprises a heating wire and an end device mounted at the end of the heating wire, the heating wire is provided in an L-shaped configuration, and the body of the heating wire is located in the lower region of the heating space, while the end of the heating wire penetrates the first and second partitions, and the end device is located above the second partition.
  5. 5. The constant temperature heat preservation cabinet according to claim 2, wherein the semiconductor refrigerating sheets are arranged on the side edges of the horizontal plate in parallel, the upper side faces of the semiconductor refrigerating sheets are flush with the upper side faces of the horizontal plate, radiating sheets are arranged above the semiconductor refrigerating sheets, and fans are arranged above the radiating sheets.
  6. 6. The constant temperature cabinet according to claim 5, wherein a plurality of mounting holes are formed in the top surface of the upper housing, air holes are formed in the vertical side wall of the upper housing, the fan is arranged at the mounting holes, and the air holes are arranged opposite to the radiating fins.
  7. 7. The constant temperature heat preservation cabinet according to claim 5, wherein two air delivery pipes are arranged above the second partition board in a communicating manner, the two air delivery pipes are distributed on two sides of the vertical board and are respectively connected with the heating space and the cooling space in a communicating manner, and the two air delivery pipes are respectively connected with the output end of the air pump through electromagnetic valves.
  8. 8. The constant temperature cabinet of claim 7, wherein a dispersing bin is attached below the semiconductor refrigerating sheet, the dispersing bin comprises a second side plate which is parallel and close to the vertical plate and a bottom plate which is vertically arranged on the side edge of the second side plate, two first side plates and a plurality of isolating plates are arranged between the bottom plate and the semiconductor refrigerating sheet in parallel, and the two first side plates are positioned at the end part of the bottom plate.
  9. 9. The constant temperature cabinet according to claim 8, wherein the length of the first side plate is greater than the width of the bottom plate, the end of the first side plate is connected with the end wall of the lower shell, a gap is reserved between the bottom plate and the end wall of the lower shell, the upper end and the lower end of the second side plate are respectively connected with the semiconductor refrigerating sheet and the bottom wall of the lower shell, and air inlets are arranged on the second side plate opposite to the holes of the two isolation plates.
  10. 10. The constant temperature heat preservation cabinet according to claim 1, wherein a plurality of through holes are uniformly formed in the bottom wall of the lower shell, a cabinet door is arranged at an opening at the front side of the cabinet body, and a plurality of brackets are arranged on the inner side of the cabinet body in an up-down distribution mode.

Description

Constant temperature heat preservation cabinet Technical Field The utility model relates to the technical field of heat preservation equipment, in particular to a constant-temperature heat preservation cabinet. Background With the improvement of life quality, the constant-temperature preservation demands of various articles are increasing. In the food industry, this need is particularly pronounced, and maintaining a proper temperature of the food is critical to maintaining its mouthfeel, nutrition, or even freshness. At present, a water heating type heat preservation cabinet is widely adopted in the market for heat preservation aiming at thermally processed foods. The heat preservation cabinet is generally composed of a heating element and a food cabinet for containing food, wherein the electric heating soup pool cabinet is further provided with a water tank, the heating element is immersed in the water tank, water in the water tank is heated, and heat transfer between hot water and the food cabinet is utilized, so that the food in the food cabinet is kept at a certain temperature, the heat preservation cabinet is very suitable for preserving heat for hot food in cold seasons, and the requirement of people on the temperature of the hot food is met. However, there are significant functional limitations to such water-heated thermal cabinets. From thermodynamic principle analysis, the adopted circulating heating system depends on water temperature conduction, and can only realize unidirectional temperature regulation and control of 30-75 ℃, so that the circulating heating system faces double technical bottlenecks in summer, on one hand, when the ambient temperature breaks through 35 ℃, the interior of the cabinet body cannot form effective heat exchange, and even if the heating device is turned off, the internal temperature can continuously rise along with the external environment. The measured data show that the temperature in the heat preservation cabinet for storing mung bean soup is increased from the initial 25 ℃ to 38 ℃ in 1 hour under the high-temperature environment of 40 ℃, so that the mung bean soup has starch retrogradation, the original fine taste is roughened, and the total number of microbial colonies is increased by 200% in 12 hours. More serious, for foods such as instant salad, sushi and the like which need to be refrigerated and stored, the thermal insulation cabinet can not block the propagation chains of mesophilic bacteria and thermophilic bacteria due to lack of a refrigeration module. Taking the salmon bone as an example, the fish bone is stored for 4 hours under the environment of 30 ℃, the TVB-N (volatile basic nitrogen) content exceeds the food safety standard by 2.3 times, and the nitrite content reaches 1.8 times of the initial value. Meanwhile, the temperature control precision of the traditional water heating type heat preservation cabinet is generally within +/-5 ℃, the storage requirement of dairy products and the like on temperature fluctuation sensitive articles cannot be met, the application scene boundary of the dairy products is further compressed, and the requirements of increasingly refined food full-scene constant-temperature preservation in modern society are difficult to meet. If the refrigerating equipment is equipped in hot summer, the operating cost in the food field is increased. Disclosure of utility model The utility model discloses a constant-temperature heat-preserving cabinet, which mainly solves the problem that the existing heat-preserving cabinet only has a heating or refrigerating function. In order to achieve the purpose, the technical scheme of the utility model is realized as follows: The utility model provides a constant-temperature heat-preservation cabinet which comprises a cabinet body, wherein a lower shell is arranged at an opening at the top of the cabinet body, an upper shell is spliced above the lower shell, an installation space formed by the lower shell and the upper shell is communicated with the cabinet body, heating mechanisms and semiconductor refrigerating sheets are distributed on the left side and the right side of the installation space, the heating mechanisms, the semiconductor refrigerating sheets and the lower shell form a heating space and a cooling space, and an air pump in the installation space blows air to circulate into the cabinet body through the heating space or the cooling space. Preferably, a second partition plate is arranged on the inner side of the installation space, the second partition plate comprises a horizontal plate and a vertical plate vertically installed at the end part below the horizontal plate, and the horizontal plate, the vertical plate and the lower shell enclose a heating space. Preferably, a first baffle plate is arranged on the inner side of the heating space, the first baffle plate is of an L-shaped structure, the first baffle plate separates the heating space into two areas which are communicated