Head cover assembly with exhaust passage
By designing a slender exhaust channel in the head cover assembly, the problem of hot air and food overflow in the existing technology is solved, achieving better anti-overflow effect and reducing food waste.
Patent Information
- Application Number
- CN202421014392.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the existing head cover assembly, the exhaust passage is a constant diameter pipe, causing hot air and food to overflow, causing problems with overflowing pots.
The head cover assembly is designed with a slender exhaust channel, which slows down the outflow speed of the airflow through the slender channel, forming a narrow air outlet channel to prevent food from overflowing the pot.
The design of the slender exhaust channel reduces food spillage, improves the anti-spill effect during cooking, and reduces food waste.
Smart Images
Figure CN222367551U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of exhaust in cooking utensils, in particular to a head cover component with an exhaust passage. Background Art
[0002] The head cover assembly is generally used for the assembly of motors in rice cookers. Usually, an overflow prevention port is set on the top of the head cover of the rice cooker, and then equipped with a corresponding overflow prevention pipe. The whole structure is relatively simple, especially the overflow prevention pipe, which is basically a constant diameter pipe. The exhaust gas rushes out directly, which will cause excessive hot air to overflow, and this process will inevitably cause food to overflow, causing the pot to overflow. Utility Model Content
[0003] The utility model aims to provide a head cover assembly with an exhaust channel, which slows down the outflow speed of the airflow by selecting a slender exhaust channel, thereby forming a narrow and long exhaust channel in the head cover, thereby preventing food from overflowing from the pot.
[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.
[0005] A head cover assembly with an exhaust passage, comprising an assembly space formed in the head cover, and an anti-overflow assembly located in the assembly space;
[0006] The anti-overflow component includes an exhaust port and an anti-overflow port respectively located at the bottom and the top of the head cover and communicating with each other, and an exhaust channel communicating with the exhaust port, wherein an elongated channel with a minimum width:length of 1:3-2 is formed in the exhaust channel;
[0007] From top to bottom, the exhaust channel forms a guiding path away from the anti-overflow port, driving the airflow at the exhaust port to move upward and dispersing the airflow at the exhaust port.
[0008] Preferably, a buffer portion is provided at a position corresponding to the exhaust channel and the exhaust port, and a plurality of air inlet holes are formed on the periphery of the buffer portion.
[0009] Preferably, the air inlet hole is formed by partially concavely passing through the exhaust passage toward the buffer portion.
[0010] Preferably, a plurality of inwardly concave air intake holes form an air intake guide area toward the center of the exhaust passage.
[0011] Preferably, at the bottom of the exhaust channel, the area of the air intake guide region accounts for one half to two thirds of the circumferential area of the bottom of the exhaust channel.
[0012] Preferably, the air inlet is concave to form a symmetrical arc-shaped guiding surface.
[0013] Preferably, it also includes an enclosure cavity located outside the exhaust passage and communicating with the exhaust port.
[0014] Preferably, the head cover also includes an inner cover, and the inner cover or inner lining in the head cover partially extends to form the enclosure cavity, and the enclosure cavity is integrally arranged with the exhaust channel via a connecting portion.
[0015] Preferably, the inner liner or the inner cover extends upward to form a buffer cavity communicated with the exhaust passage, and the anti-overflow port is assembled at the buffer cavity.
[0016] Preferably, a diffuse exhaust hole extending outward is formed at the top of the exhaust channel.
[0017] The beneficial effects of the utility model are as follows:
[0018] In the utility model, a slender channel is selected to enter the limited assembly space of the head cover so that the length-width ratio of the exhaust channel reaches a set range. At this time, the flow of the airflow is slowed down, and what is formed in the head cover is not a stream of airflow, but a narrow and long small airflow, which lessens the food and does not cause food overflowing from the pot.
[0019] In the utility model, the exhaust channel and the narrow ventilation channel are combined with each other to effectively prevent overflow, and the generation of bubbles in the pot can be suppressed when the bubbles flow through the exhaust channel and the narrow ventilation channel, thereby achieving the effect of breaking bubbles. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of the structure of the exhaust passage in the head cover assembly with the exhaust passage provided by the utility model;
[0021] Figure 2 An assembly diagram of an exhaust passage in a head cover assembly with an exhaust passage provided by the utility model;
[0022] Figure 3 A schematic diagram of the structure of a head cover assembly with an exhaust passage provided by the utility model;
[0023] In the figure:
[0024] 100. Head cover; 110. Inner cover; 120. Inner lining; 200. Anti-overflow assembly; 210. Exhaust port; 220. Anti-overflow port; 230. Exhaust channel; 231. Buffer portion; 232. Air inlet hole; 233. Diffusion exhaust hole; 240. Enclosure cavity; 250. Connecting portion; 260. Buffer cavity; 300. Cooking cavity of rice cooker. DETAILED DESCRIPTION
[0025] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.
[0026] Refer to the attached Figure 1-3 As shown, the head cover assembly with an exhaust channel in this embodiment includes an assembly space formed in the head cover 100, and an anti-overflow assembly 200 located in the assembly space;
[0027] The anti-overflow component 200 includes an exhaust port 210 and an anti-overflow port 220, which are respectively located at the bottom and top of the head cover 100 and are interconnected, and an exhaust channel 230 connected to the exhaust port 210, wherein a slender channel with a minimum width: length of 1:3-2 is formed in the exhaust channel 230; compared with the constant diameter pipe in the prior art, the slender channel avoids the entry of excessive hot air and food, and reduces overflow caused by their discharge.
[0028] In this embodiment, the height of the entire head cover is 45-50mm, preferably 49.4mm, the height of the entire narrow exhaust channel is 20-24mm, preferably 21.7mm, the narrowest width is 8-9mm, preferably 8.7mm, and the widest top is 32-36mm, preferably 35.4mm. Relatively speaking, it is relatively narrow and long, and the width of the enclosing cavity is 34-50mm, preferably the narrowest is 34.7mm, and the widest is 47.7mm, and the height of the enclosing cavity is 30-32mm, preferably 31.5mm. Relatively speaking, its width is always greater than the height, and in this embodiment, the minimum width of the exhaust channel is smaller than the height, and thus it is a narrow and long channel.
[0029] In this embodiment, from top to bottom, the exhaust channel 230 forms a guiding path away from the anti-overflow port 220 , driving the airflow at the exhaust port 210 to move upward, thereby dispersing the airflow at the exhaust port 210 .
[0030] The principle of the utility model is that when the food is heated in the cooking cavity at the bottom of the head cover 100, excessive hot air is generated, and the hot air needs to be discharged to avoid the problem of airflow blockage and overflow. Since the exhaust channel is narrow and long, the hot air entering is limited, and the limited hot air will be discharged through a longer channel. In this process, part of the energy of the hot air is consumed, and the air flow cools down to form water falling instead of continuing to be discharged, thereby achieving a good anti-overflow effect.
[0031] In this embodiment, within the limited head cover space, the exhaust channel is reasonably designed to ensure that the outflow of hot air is better controlled as expected, thereby reducing overflow during food cooking, improving the user experience, and reducing food waste caused by overflow.
[0032] Since the energy of the overflowing airflow is large, it has a great impact on the entire head cover. In order to reduce the impact and protect the head cover and the exhaust channel, in this embodiment, a buffer portion 231 is provided at the position corresponding to the exhaust channel 230 and the exhaust port 210, and a plurality of air inlet holes 232 are formed on the periphery of the buffer portion 231.
[0033] In order to form a better guiding path so that the airflow enters along the air inlet, in this embodiment, the air inlet 232 is formed by partially concavely facing the buffer portion through the exhaust channel 230. The concave is used to form an arc-shaped guiding path, which provides a basis for the discharge of steam.
[0034] Compared with a single hole, a plurality of inwardly concave air intake holes 232 are selected to form an air intake guide area toward the center of the exhaust channel 230. At this time, the air intake guide area will make the peripheral air flow flow toward the center to guide the exhaust. In this embodiment, specifically, the air intake port 232 is a three-dimensional opening structure with a gradually narrowing width. The closer to the center, the narrower the width, thereby avoiding blockage in the exhaust channel caused by the introduction of too much airflow.
[0035] In order to achieve better overflow prevention, the area of the air intake guide area at the bottom of the exhaust channel 230 occupies one-half to two-thirds of the circumferential area of the bottom of the exhaust channel 230. At this time, the air intake area occupies one-half or even more of the volume formed at the entire bottom, in order to avoid gas accumulation caused by the bottom, especially in the narrow exhaust channel, to achieve gas flow.
[0036] In order to make the flow more uniform, the inlet hole 232 is concave to form a symmetrical arc guide surface. The whole structure is symmetrical, the flow is evenly dispersed, and the arc guide surface is selected to form a good arc guide surface, so that the gas flow is relatively smooth, and the impact on other structures in the concave part is small. Since a hole is opened on the channel at this time, if the impact is large, the inlet hole is easily damaged, affecting the use.
[0037] In order to protect the exhaust passage, a barrier cavity 240 is also included, which is located outside the exhaust passage 230 and communicates with the exhaust port 210. The barrier cavity 240 forms a cavity to assist gas circulation, and on the other hand, the barrier cavity 240 avoids direct influence of the outside world on the exhaust passage, thereby achieving good protection.
[0038] In order to facilitate production, the head cover 100 further includes an inner cover 110. The inner cover 110 or the inner liner 120 in the head cover 100 partially extends to form the enclosure cavity, and the enclosure cavity is integrally arranged with the exhaust channel 230 via the connecting portion 250. The integral arrangement allows production with one template, thereby reducing production costs. At this time, the connecting portion 250 is added to form a connecting structure, which makes the mold cost relatively low.
[0039] Specifically, the inner liner 120 or the inner cover 110 extends upward to form a buffer cavity 260 communicating with the exhaust channel 230, and the anti-overflow port 220 is assembled at the buffer cavity 260. The cross-sectional area of the buffer cavity 260 is larger than the cross-sectional area of the exhaust channel 230, so that the gas exhausted from the exhaust channel can be temporarily buffered, and the cooking time is generally not too long, so that the buffer cavity and the enclosure cavity meet the overall exhaust use.
[0040] As shown in the accompanying drawings, a diffuse exhaust hole 233 extending outward is formed at the top of the exhaust channel 230. From bottom to top, the width of the entire exhaust channel will become wider, and the top is a diffuse exhaust hole, which allows the airflow to flow quickly into the buffer cavity 260 to speed up the circulation.
[0041] In the utility model, applied to the head cover, both sides of the entire exhaust channel 230 are arc-shaped, and the arc forms an expanded diameter with gradually increasing width from bottom to top, thereby guiding the airflow to flow upward and outward, forming a good guidance. Compared with a single straight pipe, its flow and exhaust effects are better.
[0042] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.
[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A head cover assembly with an exhaust channel, characterized in that: It includes an assembly space formed in the head cover, and an anti-overflow component located in the assembly space; The anti-overflow component includes an exhaust port and an anti-overflow port respectively located at the bottom and the top of the head cover and communicating with each other, and an exhaust channel communicating with the exhaust port, wherein an elongated channel with a minimum width:length of 1:3-2 is formed in the exhaust channel; From top to bottom, the exhaust channel forms a guiding path away from the anti-overflow port, driving the airflow at the exhaust port to move upward and dispersing the airflow at the exhaust port.
2. The head cover assembly with an exhaust passage according to claim 1, characterized in that: A buffer portion is provided at a position corresponding to the exhaust channel and the exhaust port, and a plurality of air inlet holes are formed on the periphery of the buffer portion.
3. The head cover assembly with an exhaust passage according to claim 2, characterized in that: The air inlet hole is formed by being partially concave toward the buffer portion through the exhaust passage.
4. The head cover assembly with an exhaust passage according to claim 3, characterized in that: A plurality of inwardly concave air intake holes form an air intake guide area toward the center of the exhaust passage.
5. The head cover assembly with an exhaust passage according to claim 4, characterized in that: At the bottom of the exhaust passage, the area of the air intake guide region accounts for one half to two thirds of the circumferential area of the bottom of the exhaust passage.
6. The head cover assembly with an exhaust passage according to claim 3, characterized in that: The air inlet is concave to form a symmetrical arc-shaped guiding surface.
7. The head cover assembly with an exhaust passage according to claim 1, characterized in that: It also includes an enclosure cavity located outside the exhaust passage and communicated with the exhaust port.
8. The head cover assembly with an exhaust passage according to claim 7, characterized in that: The head cover also includes an inner cover, and the inner cover or the inner liner is partially extended to form the enclosure cavity, and the enclosure cavity is integrally arranged with the exhaust channel via a connecting portion.
9. The head cover assembly with an exhaust passage according to claim 8, characterized in that: The inner liner or inner cover in the head cover extends upward to form a buffer cavity communicated with the exhaust channel, and the anti-overflow port is assembled at the buffer cavity.
10. The head cover assembly with an exhaust passage according to claim 1, characterized in that: A diffusion-type exhaust hole extending outward is formed at the top of the exhaust channel.