Switch assembly and range hood provided with same

Abstract

The utility model discloses a switch assembly and a range hood provided with the switch assembly. The switch assembly comprises a lower cover, an upper cover, a circuit board and a display film, the upper cover is gradually closed from an opening at one end to an opening at the other end, a large opening port and a small opening port are correspondingly formed, the lower cover is installed at the large opening port and covers the large opening port, the size of the lower cover is matched with the size of the large opening port, and the display film is arranged on the circuit board. The display film is installed at the small opening port and covers the small opening port, the size of the display film is matched with the size of the small opening port, the circuit board is installed in an installation cavity defined by the lower cover, the upper cover and the display film, and the circuit board is adjacent to the lower cover. The switch assembly is installed on the front side of the lower cavity of the range hood, on one hand, the internal space can be utilized to the maximum extent, the size of a circuit board is not limited, and internal layout is facilitated, on the other hand, when the size of the circuit board cannot be reduced, the width of a display film can be further reduced through the structure of the large port and the small port, and the ultra-narrow edge effect of the range hood is achieved; and the appearance is more fashionable and beautiful.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to a switch component and a range hood equipped with the switch component. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can quickly extract the waste from stove combustion and the fumes generated during cooking and discharge them outdoors, reduce pollution, and purify the air. With the advancement of science and technology, the intelligence of range hoods is getting higher and higher. Smart screen range hoods have been favored by the majority of users. The smart screen range hood includes a range hood body and a smart screen installed on the range hood body, as well as a controller, a communication module, and an audio output module. In the process of using the range hood, the smart screen can also display the air conditions of the cooking environment to the user in real time. The user can also operate on the smart screen according to the air conditions displayed by the smart screen to adjust the wind speed or rotation speed of the exhaust fan of the range hood, so that the range hood can effectively purify the cooking environment and ensure the quality of the air inhaled by the user. The display light board is one of the important components of the smart screen. The existing range hood display light boards generally adopt a spring button structure. For example, the Chinese utility model patent "A panel assembly and a range hood having the same" with patent number 202321144725.9 (authorization announcement number CN 219550633U) discloses a display light board with a spring button structure, wherein the first display part includes a glass display screen or a spring button arranged on the panel body, and the first display part is provided with a light display area. When the first display part is turned on, the light display area is lit; when the first display part is turned off, the light display area is extinguished. The disadvantage of the display light board with a spring button structure is that it is relatively wide, and is restricted by the width of the PCB board, so it is impossible to produce an ultra-narrow frame display appearance, and the display appearance is wide and bulky. In addition, the cost of the spring button structure is relatively high, and the appearance is not good enough. Utility Model Content

[0003] The first technical problem to be solved by the present invention is to provide a switch assembly with an unlimited circuit board size and a display light board with an ultra-narrow frame in view of the above-mentioned existing technical status.

[0004] The second technical problem to be solved by the present invention is to provide a range hood equipped with the switch assembly according to the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the first technical problem mentioned above is: the switch component includes a lower cover, an upper cover, a circuit board and a display film, and is characterized in that: openings are formed at both ends of the upper cover, and the upper cover gradually closes from one end opening to the other end opening. Correspondingly, one end opening is a large opening port, and the other end is a small opening port. The lower cover is installed on the large opening port and covers the large opening port, and the size of the lower cover is adapted to the size of the large opening port. The display film is installed on the small opening port and covers the small opening port, and the size of the display film is adapted to the size of the small opening port. The circuit board is installed in an installation cavity enclosed by the lower cover, the upper cover and the display film, and the circuit board is adjacent to the lower cover.

[0006] Preferably, the cross section of the upper cover is a trapezoidal structure as a whole.

[0007] In order to seal the lower cover and the upper cover to each other, the lower cover and the upper cover are sealed and connected via a sealing ring.

[0008] The sealing ring can have a variety of installation structures. Preferably, a mounting groove is provided on the edge of the large opening port of the upper cover, and a clamping ring is protruded on the side of the lower cover facing the large opening port. The sealing ring is installed in the mounting groove, and the clamping ring is inserted into the mounting groove and presses the sealing ring.

[0009] Further preferably, a light-transmitting plate bracket is installed in the installation cavity, the light-transmitting plate bracket is arranged on the front side of the circuit board, and corresponding positions of the lower cover, the circuit board and the light-transmitting plate bracket are provided with installation holes, and the fixing member passes through the corresponding installation holes from back to front to connect and fix the lower cover, the circuit board and the light-transmitting plate bracket to each other. In this way, the lower cover, the circuit board and the light-transmitting plate bracket are connected and fixed together by the fixing member.

[0010] In order to enable the upper cover and the light-transmitting plate bracket to be sealed and connected, the edge of the small opening port of the upper cover has a first clamping portion, and the edge of the corresponding side of the light-transmitting plate bracket has a second clamping portion. The first clamping portion and the second clamping portion are clamped together to form a sealing structure between the light-transmitting plate bracket and the upper cover.

[0011] Further preferably, the lower cover and the display film are both rectangular, and accordingly, the light-transmitting plate bracket is provided with light-transmitting holes at intervals along the length direction.

[0012] In order to fix the display film on the upper cover and the light-transmitting plate bracket, the outer end surface of the small opening port of the upper cover is flush with the outer end surface of the light-transmitting plate bracket, and the display film is bonded to the upper cover and the light-transmitting plate bracket.

[0013] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a range hood, comprising an upper box body and a lower cavity, the upper box body is equipped with a range fume fan, and the lower cavity is provided with a smoke inlet connected to the air inlet of the range fume fan, characterized in that: the switch assembly is installed on the front side of the lower cavity.

[0014] In order to make the range hood more beautiful, the lower cavity extends forward from the upper box body, the switch assembly is hidden inside the front side of the lower cavity, a light-transmitting decorative plate is installed on the front side of the lower cavity, and the display film is attached to the inner side of the light-transmitting decorative plate.

[0015] Compared with the prior art, the advantages of the utility model are: the upper cover of the switch assembly gradually closes from one opening to the other opening, the lower cover is installed at the large opening port, the display film is installed at the small opening port and covers the small opening port, the circuit board is installed in the installation cavity enclosed by the lower cover, the upper cover and the display film, and the circuit board is adjacent to the lower cover, and the switch assembly is installed on the front side of the lower cavity of the range hood. On the one hand, the internal space can be maximized, and the size of the circuit board is not limited, which is beneficial to the internal layout. On the other hand, when the size of the circuit board cannot be reduced, the structure of the large and small ports of the switch assembly allows the width of the display film to be further reduced, forming an ultra-narrow edge effect for the range hood, and the appearance is more fashionable and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a switch assembly according to an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic structural diagram of the switch assembly from another angle;

[0018] Figure 3 for Figure 1 an exploded schematic diagram of the switch assembly shown;

[0019] Figure 4 for Figure 1 An exploded schematic diagram of the switch assembly shown at another angle;

[0020] Figure 5 for Figure 1 A structural cross-sectional view of the switch assembly shown;

[0021] Figure 6 for Figure 5 A magnified schematic diagram of part A;

[0022] Figure 7 It is a structural schematic diagram of a range hood according to an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 6 As shown, the switch assembly of this embodiment includes a lower cover 1, an upper cover 2, a circuit board 3, a display film 4, a sealing ring 5 and a light-transmitting plate bracket 6. Among them, both ends of the upper cover 2 are formed with openings, and the upper cover 2 gradually closes from one end opening to the other end opening, one end opening is a large opening port 21, and the other end is a small opening port 22. In this embodiment, the cross section of the upper cover 2 is a trapezoidal structure as a whole.

[0025] The lower cover 1 is installed on the large opening port 21 and covers the large opening port 21. The lower cover 1 is rectangular, and the size of the lower cover 1 is adapted to the size of the large opening port 21. The lower cover 1 and the upper cover 2 are sealed and connected by a sealing ring 5. Specifically, a mounting groove 23 is provided on the edge of the large opening port 21 of the upper cover 2, and a clamping ring 11 is protruded on the side of the lower cover 1 facing the large opening port 21. The sealing ring 5 is installed in the mounting groove 23. When installing, the clamping ring 11 is clamped into the mounting groove 23 and presses the sealing ring 5.

[0026] The display film 4 is installed on the small opening port 22 and covers the small opening port 22. The display film 4 is rectangular, and the size of the display film 4 is adapted to the size of the small opening port 22, that is, the size of the display film is smaller than the size of the lower cover 1, and the switch assembly forms a narrow frame effect.

[0027] The circuit board 3 is installed in the installation cavity enclosed by the lower cover 1, the upper cover 2 and the display film 4, and the circuit board 3 is adjacent to the lower cover 1. A light-transmitting plate bracket 6 is installed in the installation cavity, and the light-transmitting plate bracket 6 is arranged on the front side of the circuit board 3. Mounting holes 7 are opened at corresponding positions of the lower cover 1, the circuit board 3 and the light-transmitting plate bracket 6, and fixing members such as screws pass through the corresponding mounting holes 7 from back to front to connect and fix the lower cover 1, the circuit board 3 and the light-transmitting plate bracket 6 to each other.

[0028] A sealed connection structure is also formed between the upper cover 2 and the light-transmitting plate bracket 6. Specifically, the edge of the small opening port 22 of the upper cover 2 has a first clamping portion 24, and the edge of the corresponding side of the light-transmitting plate bracket 6 has a second clamping portion 61. The first clamping portion 24 and the second clamping portion 61 are clamped with each other to form a sealed structure between the light-transmitting plate bracket 6 and the upper cover 2. In addition, the light-transmitting plate bracket 6 is provided with light-transmitting holes 62 at intervals along the length direction.

[0029] In this embodiment, the outer end surface of the small opening port 22 of the upper cover 2 is flush with the outer end surface of the light-transmitting plate bracket 6, and the display film 4 is bonded to the upper cover 2 and the light-transmitting plate bracket 6. After installation, the upper cover 2 and the light-transmitting plate bracket 6 are hidden behind the display film 4.

[0030] like Figure 7As shown, the range hood of this embodiment includes an upper box body 8 and a lower cavity body 9, the upper box body 8 is equipped with a range hood fan 10, and the lower cavity body 9 is provided with a smoke inlet 91 connected to the air inlet of the range hood fan 10. After the smoke is sucked in from the smoke inlet 91, it is discharged into the public flue through the range hood fan 10. Among them, the lower cavity body 9 extends forward from the upper box body 8, the switch assembly is hidden inside the front side of the lower cavity body 9, and a light-transmitting decorative plate 92 is installed on the front side of the lower cavity body 9. The light-transmitting decorative plate 92 serves to decorate and protect the switch assembly, and the display film 4 is attached to the inner side of the light-transmitting decorative plate 92. After the range hood is equipped with the switch assembly, on the one hand, the internal space can be maximized, the size of the circuit board 3 is not limited, which is conducive to the internal layout. On the other hand, when the size of the circuit board 3 cannot be reduced, the structure of the large and small ports of the switch assembly allows the width of the display film 4 to be further reduced, and the range hood forms an ultra-narrow edge effect, and the appearance is more fashionable and beautiful.

Claims

1. A switch assembly, comprising a lower cover (1), an upper cover (2), a circuit board (3) and a display film (4), characterized in that: The upper cover (2) is formed with openings at both ends, and the upper cover (2) gradually closes from one end opening to the other end opening. Accordingly, one end opening is a large opening port (21), and the other end is a small opening port (22). The lower cover (1) is installed on the large opening port (21) and covers the large opening port (21), and the size of the lower cover (1) matches the size of the large opening port (21). The display film (4) is installed on the small opening port (22) and covers the small opening port (22), and the size of the display film (4) matches the size of the small opening port (22). The circuit board (3) is installed in a mounting cavity enclosed by the lower cover (1), the upper cover (2) and the display film (4), and the circuit board (3) is adjacent to the lower cover (1).

2. The switch assembly according to claim 1, characterized in that: The cross section of the upper cover (2) is overall in a trapezoidal structure.

3. The switch assembly according to claim 1, characterized in that: The lower cover (1) and the upper cover (2) are sealed and connected via a sealing ring (5).

4. The switch assembly according to claim 3, characterized in that: The edge of the large opening port (21) of the upper cover (2) is provided with a mounting groove (23); the lower cover (1) is provided with a clamping ring (11) protruding on a side facing the large opening port (21); the sealing ring (5) is installed in the mounting groove (23); the clamping ring (11) is clamped into the mounting groove (23) and presses the sealing ring (5).

5. The switch assembly according to claim 1, characterized in that: A light-transmitting plate bracket (6) is installed in the installation cavity. The light-transmitting plate bracket (6) is arranged on the front side of the circuit board (3). Mounting holes (7) are opened at corresponding positions of the lower cover (1), the circuit board (3) and the light-transmitting plate bracket (6). The fixing parts pass through the corresponding mounting holes (7) from back to front to connect and fix the lower cover (1), the circuit board (3) and the light-transmitting plate bracket (6) to each other.

6. The switch assembly according to claim 5, characterized in that: The edge of the small opening port (22) of the upper cover (2) has a first clamping portion (24), and the edge of the corresponding side of the light-transmitting plate bracket (6) has a second clamping portion (61); the first clamping portion (24) and the second clamping portion (61) are mutually clamped to form a sealing structure between the light-transmitting plate bracket (6) and the upper cover (2).

7. The switch assembly according to claim 5, characterized in that: The lower cover (1) and the display film (4) are both rectangular, and accordingly, the light-transmitting plate bracket (6) is provided with light-transmitting holes (62) at intervals along the length direction.

8. The switch assembly according to claim 5, characterized in that: The outer end surface of the small opening port (22) of the upper cover (2) is flush with the outer end surface of the light-transmitting plate bracket (6), and the display film (4) is bonded to the upper cover (2) and the light-transmitting plate bracket (6).

9. A range hood, comprising an upper box (8) and a lower chamber (9), wherein the upper box (8) is provided with a range hood fan (10), and the lower chamber (9) is provided with a smoke inlet (91) connected to an air inlet of the range hood fan (10), wherein: A switch assembly according to any one of claims 1 to 8 is installed on the front side of the lower cavity (9).

10. The range hood according to claim 9, characterized in that: The lower cavity (9) extends forward from the upper box (8), the switch assembly is hidden inside the front side of the lower cavity (9), a light-transmitting decorative plate (92) is installed on the front side of the lower cavity (9), and the display film (4) is attached to the inner side of the light-transmitting decorative plate (92).

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