Drying oven preheating cavity structure and drying oven
By using fully enclosed heating wires and internal circulation components in the oven, combined with air inlet and outlet, the problem of uneven temperature during oven preheating is solved, resulting in a more uniform temperature distribution and more efficient drying effect.
Patent Information
- Application Number
- CN202423273967.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing drying ovens suffer from uneven temperature and ineffective hot air diffusion during the preheating process, resulting in poor drying performance.
The heating wire and internal circulation components are fully enclosed, combined with the air inlet and outlet to form an airflow circulation, and work with the temperature sensor and insulation layer to achieve temperature uniformity.
It improves the temperature uniformity during the preheating process of the inner cavity, thereby enhancing drying efficiency and product quality.
Smart Images
Figure CN223580452U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of oven, in particular to an oven preheating cavity structure and oven. BACKGROUND
[0002] As a common heating equipment, the oven is widely used in industrial production, laboratory research and daily life and many other fields. In many application scenarios, the preheating effect of the oven is crucial, directly affecting the subsequent drying process and product quality.
[0003] However, the existing oven may have uneven preheating problems in the preheating process. On the one hand, due to the uneven distribution of heating elements inside the oven, the temperature rises faster near the heating elements, while the temperature rises slowly away from the heating elements, resulting in a significant temperature gradient in the oven chamber. On the other hand, the existing oven often lacks an effective air circulation system in design. Without good air circulation, hot air cannot effectively diffuse in the oven chamber, making it difficult to achieve uniform temperature distribution.
[0004] Based on this, the utility model provides an oven preheating cavity structure and oven to solve the above problems. INVENTION CONTENTS
[0005] The utility model aims to provide an oven preheating cavity structure and oven to improve the temperature uniformity during the preheating process of the inner cavity.
[0006] To solve the above technical problems, the utility model provides an oven preheating cavity structure, which includes an inner cavity, an air inlet duct and an internal circulation assembly.
[0007] The inner cavity is surrounded by heating wires on the outer wall, and an air outlet is provided on the upper end of one side wall of the inner cavity for discharging air inside the inner cavity,
[0008] The air inlet duct is arranged below the inner cavity to guide external air from both sides of the bottom of the inner cavity into the inner cavity.
[0009] The internal circulation assembly is installed inside the inner cavity to drive air circulation in the inner cavity.
[0010] Further, the internal circulation assembly includes an air duct plate installed on the inner side wall of the inner cavity, the bottom of the air duct plate is provided with an air extraction mechanism for driving air into the inside of the air duct plate, and the top of the air duct plate has an air outlet.
[0011] Further, the oven preheating cavity structure further includes a storage grid, which is detachably installed in the inner cavity.
[0012] Furthermore, support frames are installed on two opposite side walls inside the inner cavity, and the support frames are provided with limiting slots for inserting the storage rack along their length.
[0013] Furthermore, a temperature sensor is installed inside the inner cavity.
[0014] Furthermore, the inner cavity is covered with an insulation layer, and the heating wire is located between the insulation layer and the inner cavity.
[0015] This utility model also provides an oven, including the oven preheating cavity structure described above;
[0016] It also includes an outer shell and a door, with the oven preheating chamber structure installed inside the outer shell and the door installed on the outer shell for opening and closing.
[0017] Furthermore, one side of the cabinet door is rotatably mounted on the outer casing via a hinge, and the other side of the cabinet door is equipped with a locking door lock.
[0018] Furthermore, an electrical box is provided on the top of the outer casing, a main control module is provided inside the electrical box, and a touch screen is installed outside the electrical box.
[0019] Furthermore, omnidirectional brake wheels are installed at all four corners of the bottom of the outer casing.
[0020] Compared with the prior art, the present invention has at least the following beneficial effects:
[0021] The oven preheating chamber structure and oven provided by this utility model, through the heating wires arranged in a fully enclosed manner, combined with the internal circulation component to drive the airflow inside the inner cavity to circulate, effectively improves the temperature uniformity of the inner cavity during the preheating process; furthermore, through the setting of the air inlet and outlet, the heat is more evenly distributed in the inner cavity, further improving the temperature uniformity of the inner cavity during the preheating process. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the oven preheating chamber in Embodiment 1 of this utility model;
[0023] Figure 2 This is a schematic diagram of the overall structure of the drying oven in Embodiment 2 of this utility model.
[0024] In the diagram: 1. Inner cavity; 011. Exhaust vent; 2. Air inlet; 3. Internal circulation assembly; 31. Air duct plate; 32. Exhaust port; 4. Heating wire; 5. Storage rack; 6. Support frame; 7. Temperature sensor; 8. Insulation layer; 9. Outer shell; 10. Door; 11. Locking door; 12. Electrical box; 13. Touch screen; 14. Universal brake wheel. Detailed Implementation
[0025] The preheating chamber structure and oven of this utility model will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the advantageous effects of this utility model. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model.
[0026] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0027] Example 1
[0028] like Figure 1 As shown, this embodiment proposes a preheating cavity structure for an oven, including an inner cavity 1, an air inlet duct 2, and an internal circulation component 3. The outer wall of the inner cavity 1 is fully surrounded by heating wires 4, and an exhaust port 011 for venting air from the inside of the inner cavity 1 is provided at the upper end of one side wall of the inner cavity 1. The air inlet duct 2 is located below the inner cavity 1 and is used to introduce external air into the inner cavity 1 from both sides of the bottom of the inner cavity 1. The internal circulation component 3 is installed inside the inner cavity 1 and is used to drive the airflow to circulate within the inner cavity 1.
[0029] In this embodiment, the heating wire 4 is fully surrounded outside the inner cavity 1. When preheating is required inside the inner cavity 1, it can ensure that all surfaces of the inner cavity 1 are heated well. In conjunction with the internal circulation component 3, the airflow inside the inner cavity 1 is circulated, so that the hot airflow carries the heat to every corner of the inner cavity 1, and the warm airflow is evenly distributed throughout the entire inner cavity 1, effectively improving the temperature uniformity of the inner cavity 1 during the preheating process.
[0030] During the preheating process, external air is introduced from both sides of the bottom of the inner cavity 1 through the air inlet duct 2, and exhaust is carried out in conjunction with the exhaust port 011 at the top of the inner cavity 1 to form natural convection. This convection can work together with the internal circulation component 3 to make the heat more evenly distributed in the inner cavity 1, further improving the temperature uniformity of the inner cavity 1 during the preheating process.
[0031] In the above embodiment, the internal circulation component 3 includes an air duct plate 31 installed on the inner side wall of the inner cavity 1. The bottom of the air duct plate 31 is equipped with a suction mechanism for driving airflow into the interior of the air duct plate 31, and the top of the air duct plate 31 has an air outlet (not shown in the figure).
[0032] Specifically, a plurality of air extraction holes 32 are formed at the bottom end of the air duct plate 31, and an air extraction mechanism is installed inside the air duct plate 31 at the position of the air extraction holes 32. When the air extraction mechanism 32 is started, the gas inside the inner cavity 1 enters the air duct plate 31 from the air extraction holes 32, and the gas flow entering the air duct plate 31 is discharged from the air outlet at the top of the air duct plate 31. The gas flow discharged from the air outlet will enter the air duct plate 31 again from the air extraction holes 32 due to the air extraction effect of the air extraction mechanism 32, and this cycle will continue to realize the circulation of the gas flow in the inner cavity 1.
[0033] In the above embodiment, a temperature sensor 7 is installed inside the inner cavity 1. Through the setting of the temperature sensor 7, the temperature inside the inner cavity 1 can be monitored in real time. In the preheating stage, it can accurately detect the change of temperature. For example, when the oven preheating temperature is set to 80℃, the temperature sensor will continuously measure the temperature and feed back the data to the control module. Once the temperature reaches 80℃, the control module can adjust the power of the heating wire 4 according to the signal of the sensor, such as reducing the power to maintain this temperature, so as to realize accurate temperature control.
[0034] It should be noted that how the control module adjusts the power of the heating wire 4 according to the data of the temperature sensor 7 belongs to the prior art, and will not be described here.
[0035] In the above embodiment, the inner cavity 1 is covered with a heat preservation layer 8, and the heating wire 4 is located between the heat preservation layer 8 and the inner cavity 1. Through the setting of the heat preservation layer 8, the loss of heat inside the inner cavity 1 can be effectively avoided, achieving the purpose of energy saving and emission reduction.
[0036] In a specific embodiment, the oven preheating cavity structure further comprises a placing grid 5, which is detachably installed in the inner cavity 1.
[0037] Specifically, a support frame plate 6 is installed on each of the two opposite side walls inside the inner cavity 1, and a limiting slot (not marked in the figure) for inserting the placing grid 5 is formed on the support frame plate 6 along the length direction.
[0038] In the above specific embodiment, the placing grid 5 has a channel for air flow, and using the placing grid 5 as a component for carrying products can make the hot air flow more freely in the inner cavity 1, and good air flow can help to maintain uniform distribution of temperature in the inner cavity 1.
[0039] In addition, the placing grid 5 is installed in a plug-in manner, which is convenient for putting or taking out the products to be dried into or out of the inner cavity 1.
[0040] Embodiment two
[0041] The embodiment provides a drying oven, which comprises the drying oven preheating cavity structure, a shell 9 and a door 10.
[0042] Specifically, the drying oven preheating cavity structure is installed in the shell 9, and the drying oven preheating cavity structure is protected and supported.
[0043] The door 10 is installed on the shell 9 in an openable and closable mode, and is used for sealing an opening end of the inner cavity 1 of the drying oven preheating cavity structure, so that heat dissipation during operation of the drying oven is reduced.
[0044] In the above embodiment, one side of the door 10 is rotatably installed on the shell 9 through a hinge, and the other side of the door 10 is provided with a forced door lock 11.
[0045] The forced door lock is a door lock device with special design and function, the door 10 is connected with the outer shell 9 through the forced door lock, and has the following advantages.
[0046] (1) Preventing heat and moisture leakage: when the door 10 is closed, the forced door lock can make the door 10 tightly fit the inner cavity 1. This is crucial for maintaining the temperature and humidity environment inside the drying oven.
[0047] (2) Isolating external dust and impurities: in addition to temperature and humidity, the forced door lock can also prevent external dust and impurities from entering the inner cavity 1.
[0048] (3) Preventing accidental opening of the door: the forced door lock usually has a good locking mechanism, and during the operation of the drying oven, especially in a high-temperature and high-pressure environment, accidental opening of the door may cause injury to the operator or interruption of the drying process, resulting in product damage. The forced door lock can ensure that the door remains closed during operation, avoiding such dangerous situations.
[0049] (4) Reducing the probability of failure: due to the relatively simple and solid structure of the forced door lock, the probability of failure is low.
[0050] (5) Reducing maintenance cost: compared with some complex electronic door locks or mechanical door locks, the maintenance cost of the forced door lock is also low, and under normal use, only regular inspection and cleaning are needed to ensure normal operation.
[0051] In the above embodiment, further, the shell 9 is provided with an electrical box 12 at the top, the electrical box 12 is provided with a main control module, and the electrical box 12 is provided with a touch display screen 13 outside.
[0052] The electrical box 12 protects the main control module, and improves the stability of the drying oven. Through the setting of the touch display screen 13, relevant personnel can be conveniently operated.
[0053] In the above embodiment, optionally, the four corners of the bottom of the shell 9 are each provided with a universal brake wheel 14. Through the arrangement of the universal brake wheel 14, the flexibility of the whole oven is improved, and it can ensure that the oven can be stably placed.
[0054] In conclusion, the oven preheating cavity structure and the oven provided by the utility model improve the preheating efficiency and temperature uniformity in the inner cavity through the heating wire arranged in full enclosure and the circulation of the airflow in the inner cavity driven by the inner circulation assembly; further, the heat is more evenly distributed in the inner cavity through the arrangement of the air inlet and the air outlet, and the temperature uniformity in the preheating process is further improved.
[0055] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model claims and equivalent technologies, the utility model also intends to include these modifications and variations.
Claims
1. A preheating cavity structure for an oven, characterized in that, This includes the internal cavity, air intake duct, and internal circulation components; The outer wall of the inner cavity is fully surrounded by heating wires, and an exhaust port for venting the air inside the inner cavity is provided at the upper end of one side wall of the inner cavity. The air inlet duct is located below the inner cavity and is used to introduce external air into the inner cavity from both sides of the bottom of the inner cavity; The internal circulation component is installed in the internal cavity to drive the airflow to circulate within the internal cavity.
2. The oven preheating chamber structure as described in claim 1, characterized in that, The internal circulation component includes an air duct plate installed on the inner side wall of the inner cavity, an exhaust mechanism for driving airflow into the interior of the air duct plate is installed at the bottom of the air duct plate, and an air outlet is provided at the top of the air duct plate.
3. The oven preheating chamber structure as described in claim 1, characterized in that, It also includes a storage rack, which is detachably installed in the inner cavity.
4. The oven preheating chamber structure as described in claim 3, characterized in that, Support plates are installed on two opposite side walls inside the inner cavity, and the support plates are provided with limiting slots for inserting the storage rack along their length.
5. The oven preheating chamber structure as described in claim 1, characterized in that, A temperature sensor is installed inside the cavity.
6. The oven preheating chamber structure as described in claim 1, characterized in that, The inner cavity is covered with an insulation layer, and the heating wire is located between the insulation layer and the inner cavity.
7. An oven, characterized in that, Includes the oven preheating chamber structure as described in any one of claims 1-6; It also includes an outer shell and a door, with the oven preheating chamber structure installed inside the outer shell and the door installed on the outer shell for opening and closing.
8. The drying oven as described in claim 7, characterized in that, One side of the cabinet door is mounted on the outer casing via a hinge, and the other side of the cabinet door is equipped with a locking door lock.
9. The drying oven as described in claim 7, characterized in that, An electrical box is located on the top of the outer casing, a main control module is located inside the electrical box, and a touch screen is installed outside the electrical box.
10. The oven as described in claim 7, characterized in that, The bottom four corners of the outer casing are equipped with omnidirectional brake wheels.