Integrated stove negative pressure box general modular exhaust device

Abstract

The application discloses a general modular exhaust device of an integrated cooker negative pressure box, which comprises a negative pressure box assembly, a lower-positioned adapter, and a back-positioned air duct conversion adapter assembly. The negative pressure box assembly, the lower-positioned adapter, and the back-positioned air duct conversion adapter assembly cooperatively form a lower-positioned position and a back-positioned position. The negative pressure box assembly is fixedly connected with the lower-positioned adapter when the negative pressure box assembly is in the lower-positioned position, and the negative pressure box assembly is fixedly connected with the back-positioned air duct conversion adapter assembly when the negative pressure box assembly is in the back-positioned position. The lower-positioned adapter and the back-positioned air duct conversion adapter assembly realize the general structure of the lower-positioned and back-positioned air duct layout, and the two structures share the same size and structure of the negative pressure box assembly, thereby being high in universality.

Description

Technical Field

[0001] This invention relates to the field of integrated stove technology, and in particular to a universal modular exhaust device for the negative pressure box of an integrated stove. Background Technology

[0002] Currently, mainstream manufacturers in the integrated stove industry offer two main unit air duct systems: bottom-mounted (horizontal) and back-mounted. These different duct structures have significantly different design and manufacturing processes due to their distinct characteristics, making them incompatible and increasing costs and making process control more difficult for manufacturers. In particular, the negative pressure boxes for the bottom-mounted and back-mounted structures are not interchangeable, necessitating improvements to address these issues. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies, such as the incompatibility between bottom-mounted and back-mounted negative pressure boxes, by providing a new universal modular exhaust device for integrated stove negative pressure boxes.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0005] A universal modular exhaust device for the negative pressure box of an integrated stove includes a negative pressure box assembly, and further includes a bottom-mounted adapter and a back-mounted duct conversion connector assembly. The negative pressure box assembly, the bottom-mounted adapter, and the back-mounted duct conversion connector assembly cooperate to form a bottom-mounted position and a back-mounted position. When the negative pressure box assembly is in the bottom-mounted position, it is fixedly connected to the bottom-mounted adapter, and when the negative pressure box assembly is in the back-mounted position, it is fixedly connected to the back-mounted duct conversion connector assembly.

[0006] This patent achieves a universal structure for both bottom-mounted and back-mounted duct layouts through a bottom-mounted adapter and a back-mounted duct conversion connector assembly. Both structures share the same size and structure of the negative pressure box assembly, offering strong versatility. In the back-mounted position, the back-mounted duct conversion connector assembly can be quickly and accurately placed and positioned using the end face countersunk of the negative pressure box assembly, and then fixed with 10 M4X12 pan head screws, making it more suitable for customized production switching on assembly lines. In the bottom-mounted position, the bottom-mounted adapter is vertically connected to the negative pressure box assembly.

[0007] Preferably, the above-described universal modular exhaust device for the negative pressure box of an integrated stove includes an L-shaped cover plate, a U-shaped frame plate, and a slide rail assembly. The slide rail assembly is fixedly connected to the U-shaped frame plate, and the L-shaped cover plate is fixedly connected to the U-shaped frame plate.

[0008] The negative pressure box assembly features a fully modular design and a completely fixed structure. The L-shaped cover plate and the U-shaped frame plate of the air box are interconnected to form the main structure of the negative pressure box assembly. A volute fan is installed inside the negative pressure box assembly, and the slide rail assembly cooperates with the volute fan to facilitate its assembly and disassembly.

[0009] Preferably, the above-described universal modular exhaust device for the negative pressure box of an integrated stove further includes a wind box end cover sealing ring assembly and a snap-fit ​​sealing ring, wherein the wind box end cover sealing ring assembly and the snap-fit ​​sealing ring are symmetrically arranged on both sides of the wind box U-shaped frame plate.

[0010] The bellows end cover sealing ring assembly and snap-fit ​​sealing ring significantly improve the sealing performance of the negative pressure box assembly.

[0011] Preferably, the above-described universal modular exhaust device for the negative pressure box of an integrated stove further includes a wiring sheath on the side of the U-shaped frame plate of the air box.

[0012] The wiring sleeve is used to protect the wiring of the negative pressure box assembly, thereby improving the stability of the negative pressure box assembly.

[0013] Preferably, in the above-described universal modular exhaust device for the negative pressure box of an integrated stove, when in the lower position, the lower adapter is vertically connected to the negative pressure box assembly, the lower adapter has an arc structure, and the volute fan of the negative pressure box assembly is centrally located along the axis with the main air inlet facing downwards.

[0014] The integrated cooktop's air intake duct is vertically inserted into the negative pressure box assembly via a bottom-mounted adapter, allowing for quick connection and disassembly for greater convenience. The air intake duct forms a 90° angle with the negative pressure box assembly through the bottom-mounted adapter; this arc structure creates a Coanda effect at this point, resulting in smoother airflow, less loss, and avoiding turbulence and noise caused by opposing airflows from reflective surfaces. The volute fan is centrally positioned along the axis, with symmetrical left and right exhaust distribution, ensuring equal exhaust capacity and improving the user experience. Inside the volute fan, because the main air intake has a larger air volume than the auxiliary air intake, the main air intake is positioned downwards to prevent the intake air from directly hitting the impeller top cover, thus reducing noise generation and minimizing the dipole noise generated by the airflow and the volute fan.

[0015] Preferably, the above-mentioned universal modular exhaust device for the negative pressure box of an integrated stove further includes an exhaust pipe assembly and a main frame. The fixing seat of the exhaust pipe assembly is an eccentric structure with a rectangular gradient circle. The exhaust pipe assembly, the main frame, and the negative pressure box assembly are fixedly connected in sequence.

[0016] The eccentric structure of the rectangular gradient circle effectively raises the exhaust pipe section of the range hood assembly, preventing interference between the exhaust pipe assembly and the cabinet bottom panel during installation and improving the user experience.

[0017] Preferably, in the above-described universal modular exhaust device for the negative pressure box of an integrated stove, the bottom and back of the negative pressure box assembly are fixedly connected to the main frame.

[0018] The above design enables the negative pressure box assembly to be connected and fixed to the main frame in three directions: bottom, back, and single, making the connection more stable and improving the rigidity and structural strength of the negative pressure box assembly and the main frame.

[0019] Preferably, in the above-described universal modular exhaust device for the negative pressure box of an integrated stove, the volute fan of the negative pressure box assembly cooperates with the slide rail assembly, and the volute fan of the negative pressure box assembly is snap-fitted to the negative pressure box assembly.

[0020] The front of the negative pressure box assembly opens, allowing the volute fan to be placed on the slide rail assembly. It is then pushed in and snapped into place with the negative pressure box assembly, enabling quick installation and disassembly. For later maintenance, the volute fan can be directly disassembled without removing the negative pressure box assembly, improving maintenance efficiency. The slide rail assembly features a vibration damping structure; its horizontal push-in and quick snap-fit ​​assembly ensures the dimensional accuracy requirements of the volute fan after installation.

[0021] Preferably, in the above-described universal modular exhaust device for the negative pressure box of an integrated stove, the air outlet of the volute fan of the negative pressure box assembly is connected to the air outlet of the negative pressure box assembly via a tapered connection.

[0022] The two air outlets are connected by a tapered joint, achieving a quick tapered docking structure that eliminates the need for screw connections and fastening. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention in the rear-mounted position;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention in the lower position;

[0025] Figure 3 This is a partial exploded view of the negative pressure box assembly in this invention;

[0026] Figure 4 This is a partial structural schematic diagram of the negative pressure box assembly in this invention;

[0027] Figure 5 This is a schematic diagram of the negative pressure box assembly of the present invention in the lower position.

[0028] Figure 6This is a cross-sectional schematic diagram of the bottom-mounted adapter in this invention;

[0029] Figure 7 This is a cross-sectional schematic diagram of the negative pressure box assembly in this invention;

[0030] Figure 8 This is an exploded view of the negative pressure box assembly of the present invention in the lower position.

[0031] Figure 9 This is a schematic diagram of the eccentric structure in this invention. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-9 The invention will be further described in detail with reference to specific embodiments, but these are not intended to limit the invention:

[0033] Example 1

[0034] A universal modular exhaust device for the negative pressure box of an integrated stove includes a negative pressure box assembly 1, a bottom-mounted adapter 2, and a back-mounted duct conversion adapter assembly 3. The negative pressure box assembly 1, the bottom-mounted adapter 2, and the back-mounted duct conversion adapter assembly 3 cooperate to form a bottom-mounted position and a back-mounted position. When the negative pressure box assembly 1 is in the bottom-mounted position, it is fixedly connected to the bottom-mounted adapter 2. When the negative pressure box assembly 1 is in the back-mounted position, it is fixedly connected to the back-mounted duct conversion adapter assembly 3.

[0035] Preferably, the negative pressure box assembly 1 includes an L-shaped cover plate 11 for the air box, a U-shaped frame plate 12 for the air box, and a slide rail assembly 13. The slide rail assembly 13 is fixedly connected inside the U-shaped frame plate 12 for the air box, and the L-shaped cover plate 11 for the air box is fixedly connected to the U-shaped frame plate 12 for the air box.

[0036] Preferably, the negative pressure box assembly 1 further includes a bellows end cover sealing ring assembly 14 and a snap-fit ​​sealing ring 15, wherein the bellows end cover sealing ring assembly 14 and the snap-fit ​​sealing ring 15 are symmetrically arranged on both sides of the bellows U-shaped frame plate 12.

[0037] Preferably, the negative pressure box assembly 1 further includes a wiring sheath 16, which is disposed on the side of the U-shaped frame plate 12 of the air box.

[0038] Preferably, in the lower position, the lower adapter 2 is vertically connected to the negative pressure box assembly 1, the lower adapter 2 is provided with an arc structure 21, and the volute fan of the negative pressure box assembly 1 is centrally located along the axis with the main air inlet facing downward.

[0039] Preferably, the system also includes an exhaust pipe assembly 4 and a main unit frame 5. The mounting base of the exhaust pipe assembly 4 is an eccentric structure 41 with a rectangular gradient circle. The exhaust pipe assembly 4, the main unit frame 5, and the negative pressure box assembly 1 are fixedly connected in sequence.

[0040] Preferably, the bottom and back of the negative pressure box assembly 1 are fixedly connected to the main frame 5.

[0041] Preferably, the volute fan of the negative pressure box assembly 1 is matched with the slide rail assembly 13, and the volute fan of the negative pressure box assembly 1 is snap-fit ​​connected to the negative pressure box assembly 1.

[0042] Preferably, the air outlet of the volute fan of the negative pressure box assembly 1 is connected to the air outlet of the negative pressure box assembly 1 by a tapered connection.

[0043] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be included within the scope of the present invention.

Claims

1. A universal modular exhaust device for the negative pressure box of an integrated stove, comprising a negative pressure box assembly (1), characterized in that: It also includes a bottom-mounted adapter (2) and a back-mounted air duct conversion connector assembly (3). The negative pressure box assembly (1), the bottom-mounted adapter (2), and the back-mounted air duct conversion connector assembly (3) cooperate to form a bottom-mounted position and a back-mounted position. When the negative pressure box assembly (1) is in the bottom-mounted position, it is fixedly connected to the bottom-mounted adapter (2). When the negative pressure box assembly (1) is in the back-mounted position, it is fixedly connected to the back-mounted air duct conversion connector assembly (3). The back-mounted air duct conversion connector assembly (3) can be quickly placed and accurately positioned through the end face counter of the negative pressure box assembly (1). In the lower position, the lower adapter (2) is vertically connected to the negative pressure box assembly (1), the lower adapter (2) is provided with an arc structure (21), and the volute fan of the negative pressure box assembly (1) is centrally located along the axis and the main air inlet faces downward. It also includes an exhaust pipe assembly (4) and a main frame (5). The mounting base of the exhaust pipe assembly (4) is an eccentric structure (41) with a rectangular gradient circle. The exhaust pipe assembly (4), the main frame (5), and the negative pressure box assembly (1) are fixedly connected in sequence. The air outlet of the volute fan inside the negative pressure box assembly (1) is connected to the air outlet of the negative pressure box assembly (1) by a tapered connection. The bottom and back of the negative pressure box assembly (1) are fixedly connected to the main frame (5).

2. The universal modular exhaust device for the negative pressure box of an integrated stove according to claim 1, characterized in that: The negative pressure box assembly (1) includes an L-shaped cover plate (11), a U-shaped frame plate (12), and a slide rail assembly (13). The slide rail assembly (13) is fixedly connected inside the U-shaped frame plate (12), and the L-shaped cover plate (11) is fixedly connected to the U-shaped frame plate (12).

3. The universal modular exhaust device for the negative pressure box of an integrated stove according to claim 2, characterized in that: The negative pressure box assembly (1) also includes a bellows end cap sealing ring assembly (14) and a snap-fit ​​sealing ring (15). The bellows end cap sealing ring assembly (14) and the snap-fit ​​sealing ring (15) are symmetrically arranged on both sides of the bellows U-shaped frame plate (12).

4. The universal modular exhaust device for the negative pressure box of an integrated stove according to claim 3, characterized in that: The negative pressure box assembly (1) also includes a wiring sleeve (16), which is disposed on the side of the U-shaped frame plate (12) of the air box.

5. A universal modular exhaust device for the negative pressure box of an integrated stove according to claim 2, characterized in that: The volute fan of the negative pressure box assembly (1) cooperates with the slide rail assembly (13), and the volute fan of the negative pressure box assembly (1) is snap-fit ​​connected to the negative pressure box assembly (1).

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