US-12624841-B2 - Split-type range hood having optimal configuration of smoke-collecting case

US12624841B2US 12624841 B2US12624841 B2US 12624841B2US-12624841-B2

Abstract

A split-type range hood having an optimal configuration of a smoke-collecting case includes a housing and the smoke-collecting case. The housing has an upper wall, a lower wall, and an intake port. The smoke-collecting case covers on the intake port. The smoke-collecting case has an outer box and a covering lid. The outer box is fixed to a periphery of the intake port. The covering lid is fixedly connected to a top portion of the outer box. The covering lid has an outlet port that fluidly connects the smoke-collecting case to the intake port of the housing. A height of the smoke-collecting case is between 5 cm and 7 cm.

Inventors

CHIN-JUNG LIAO

Assignees

BLUESKY COOKING STYLE CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20230913
Priority Date: 20220914

Claims (9)

1 . A split-type range hood having an optimal configuration, comprising: a housing including an upper wall, a lower wall, and an intake port, wherein the intake port is fluidly connected to the upper wall and the lower wall; and a smoke-collecting case covering on the intake port and protruding above the upper wall, wherein the smoke-collecting case includes an outer box and a covering lid, the outer box is fixed to a periphery of the intake port, and the covering lid is fixedly connected to a top portion of the outer box; wherein the covering lid has an outlet port, the outlet port fluidly connects the smoke-collecting case to the intake port of the housing, a height of the smoke-collecting case is between 1 cm and 10 cm, so that a fume can pass through the smoke-collecting case to be exhausted outside from the outlet port of the covering lid; wherein the intake port is in a shape of a rectangle, the outer box has four box plates each in a shape of a rectangular tube, and the outlet port is in a shape of a round hole, wherein a ratio of an area of the outlet port to an area of the intake port is 0.24:1, and a height of the outer box is 7 cm.
2 . The split-type range hood according to claim 1 , wherein the upper wall of the housing has a plurality of connection walls, the plurality of connection walls extend upward and are bent from the upper wall along the periphery of the intake port, and a bottom portion of the outer box is fixedly connected to the plurality of connection walls.
3 . The split-type range hood according to claim 1 , wherein the covering lid includes a top covering wall and a plurality of assembling flaps, the plurality of assembling flaps are bent downward from a periphery of the top covering wall, the outlet port protrudes upward from the top covering wall, and the plurality of assembling flaps are fixedly connected to the outer box.
4 . The split-type range hood according to claim 1 , wherein the smoke-collecting case further includes a guiding shell, and the guiding shell is disposed in the outer box; wherein a top end of the guiding shell is fixedly connected to the covering lid, a bottom edge of the guiding shell has a plurality of shielding tabs that extend outwardly, the plurality of shielding tabs are adjacent to an inner wall of the intake port, and the guiding shell has four sides that are arranged to have a shape of a rectangular tube.
5 . The split-type range hood according to claim 4 , wherein the guiding shell includes a top guiding wall and a plurality of side guiding walls, and the plurality of side guiding walls are connected to a periphery of the top guiding wall; wherein the plurality of shielding tabs are connected to the plurality of side guiding walls, and a quantity of the plurality of shielding tabs is less than a quantity of the plurality of side guiding walls.
6 . The split-type range hood according to claim 5 , wherein a vent is formed in the top guiding wall, the vent corresponds in position to the outlet port, and the top guiding wall is fixedly connected to the covering lid.
7 . The split-type range hood according to claim 5 , further comprising an auxiliary-shielding member, the guiding shell has three of the shielding tabs and four of the side guiding walls, and a height of one of the four side guiding walls without the shielding tab is lower than a height of another three of the four side guiding walls, so as to form a gap between the one of the four side guiding walls without the shielding tab and the outer box and a concave portion; wherein the auxiliary-shielding member is fixed to one side of the inner wall of the intake port and shields the concave portion, and the auxiliary-shielding member is L-shaped.
8 . The split-type range hood according to claim 7 , further comprising a control box and a hood filter, wherein the control box is disposed on the covering lid of the smoke-collecting case, a controlling wire is arranged from the housing through the gap and passes through the covering lid to be connected to the control box, and the hood filter is disposed at the intake port and abuts against the auxiliary-shielding member.
9 . The split-type range hood according to claim 4 , wherein the guiding shell includes a top guiding wall and a plurality of side guiding walls, and the plurality of side guiding walls are connected to a periphery of the top guiding wall; wherein the plurality of shielding tabs are connected to the plurality of side guiding walls, and a quantity of the plurality of shielding tabs is equal to a quantity of the plurality of side guiding walls.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATION This application claims the benefit of priority to Taiwan Patent Application No. 111134630, filed on Sep. 14, 2022. The entire content of the above identified application is incorporated herein by reference. Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference. FIELD OF THE DISCLOSURE The present disclosure relates to a split-type range hood having an optimal configuration of a smoke-collecting case, and more particularly to a split-type range hood having a blower unit being separate from the smoke-collecting case, and the smoke-collecting case having an optimal configuration. BACKGROUND OF THE DISCLOSURE As shown in FIG. 1, a conventional range hood such as an island range hood 9 has a top wall 91 and a bottom wall 92, and includes a smoke-collecting cap 93, a fan motor 95, and a hood filter 96. The smoke-collecting cap 93 is disposed on the top wall 91, the fan motor 95 is disposed in the smoke-collecting cap 93, and the hood filter 96 is disposed on the bottom wall 92. During the use of the conventional range hood, the noise from the fan motor 95 may not be prevented from affecting the kitchen. Furthermore, when a cooking fume passes through the hood filter 96 and the smoke-collecting cap 93, and then is exhausted by the fan motor 95 outside the range hood 9, the fume usually remains between the top wall 91 and the bottom wall 92. The fume also easily remains at the corners of the smoke-collecting cap 93, and cannot be smoothly exhausted outside. These issues cause the range hood 9 to have low efficiency, accumulation of fumes, and shortened life span. In another conventional technology associated with the relevant art, the fan motor is arranged to be outside the smoke-collecting cap, and the fan motor is disposed outside the kitchen room for noise reduction similar to the way of a split-type air conditioner. For example, in Taiwan Patent No. TWI750684 “Split-Type Range Hood” as filed by the applicant of the present disclosure, the fan motor is disposed outside the smoke-collecting cap so as to be separated from the range hood as an outdoor split blower unit. However, after removing the fan motor outside, the space inside the smoke-collecting cap becomes larger, and the fluid phenomenon in the smoke-collecting cap is changed, so as to affect the speed and sound of the fume exhausting flow. Considering the flow phenomenon in the smoke-collecting cap, when an object is moving in an air flow, viscous air molecules will attach on the object and form a boundary layer. When a flow distance of the air flow is increased, a disorder and unpredictable turbulent flow is formed. Gases move randomly to form different vortices, which causes energy to be lost. Moreover, if an exhaust duct above the smoke-collecting cap is bent, a partial resistance may be formed. Furthermore, the smoke-collecting cap is made of metal boards with bending processes and is usually connected to the housing through screws or rivets. The interior of the smoke-collecting cap, which is used to collect the fume, inevitably has some fixing screws that are exposed. These fixing screws are not only unaesthetic, but also cause turbulence in the flow of the fume, so that the fume does not flow smoothly. In addition, residue of the fume can remain on screws and is difficult to be cleaned and wiped off. Therefore, how to improve the internal fluid performance in the smoke-collecting cap through an improvement in structural design to overcome the above-mentioned problems has become one of the important issues to be solved in this field. SUMMARY OF THE DISCLOSURE In response to the above-referenced technical inadequacies, the present disclosure provides a split-type range hood having an optimal configuration of a smoke-collecting case, which provides a smoke-collecting case that is able to improve the fluid flow performance in the smoke-collecting cap, so as to improve a smoothness of an airflow of a fume. In order to solve the above-mentioned problems, one of the technical aspects adopted by the present disclosure is to provide a split-type range hood having an optimal configuration, which includes a housing and a smoke-collecting case. The housing includes an upper wall, a lower wall, and an intake port. The intake port is fluidly connected to the upper wall and the lower wall. The smoke-collecting case covers the intake port, and protrudes above the upper wall. The smoke-collecting case inc