Power box assembly and range hood

Abstract

The present application relates to the technical field of range hoods, and in particular to a power box assembly and a range hood. The power box assembly includes a power box and a power board arranged therein. The power box is arranged on the top plate of the chassis of the range hood and is connected to the external environment and the chassis respectively. The power board is fixed to the top plate of the chassis by a first bracket and a second bracket, so that the power board is lifted to a predetermined height from the bottom plate of the chassis. When the fan in the chassis is working, the air in the external environment can be sucked into the chassis through the power box, and when the air flows through the power box, the heat released by the power board can be taken away to cool the power board; by raising the power board, it is not only conducive to full contact between the air and the power board, but also can ensure that the air path in the power box is unobstructed and the air flow is large enough, thereby improving the heat dissipation efficiency, so as to effectively cool the power board, and can meet the heat dissipation requirements of the power board with a large current flux.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to a power box assembly and a range hood. Background Art

[0002] A power board is generally provided on the chassis of the range hood, and a power box is covered on the outside of the power board. When the range hood is working, current will pass through the power board, and as the current passes through, the power board will generate heat, causing the temperature to rise. Especially for range hoods with large air volume, the power power required is greater, and the input current of the power board is also greater, resulting in a higher temperature rise of the power board. If the power board is not cooled in time, the service life of the power board will be affected, and in severe cases, the electronic components on the power board may even be burned.

[0003] At present, one way to dissipate heat for the power board is to use the negative pressure generated by the fan in the chassis to allow air from the external environment to continuously enter the power box to exchange heat with the power board. However, the current installation method of the power board is not conducive to the timely discharge of hot air in the power box, resulting in the heat released by the power board cannot be dissipated in time. Utility Model Content

[0004] The utility model aims to provide a power box assembly and a range hood, so as to improve the heat dissipation efficiency of a power board to a certain extent.

[0005] The utility model provides a power box assembly, comprising a power box and a power board;

[0006] The power box is used to be arranged on the top plate of the range hood chassis, the power box is provided with an air inlet, the top plate of the chassis is provided with a vent, and the vent is connected to the power box;

[0007] The power board is arranged in the power box, and one end of the power board in the first direction is fixed to the chassis top plate by a first bracket, and the other end of the power board in the first direction is fixed to the chassis top plate by a second bracket, so that the power board is lifted to a predetermined height from the chassis top plate.

[0008] Further, the first bracket and the second bracket each include a bottom plate;

[0009] The bottom plate has a length direction perpendicular to the first direction, one end of the bottom plate in the length direction is provided with a hook, the top plate of the chassis is provided with a hook groove engaged with the hook, and the other end of the bottom plate in the length direction is fastened to the top plate of the chassis.

[0010] Furthermore, the hook is L-shaped, including a first connecting part and a second connecting part vertically connected, the first connecting part is arranged in parallel and spaced apart on the side of the bottom plate facing the top plate of the chassis, and the first connecting part is connected to the bottom plate through the second connecting part, and a holding space for the top plate of the chassis to be clamped into is formed between the first connecting part, the second connecting part and the bottom plate.

[0011] Furthermore, a first support column is provided at one end of the bottom plate of the first bracket in the length direction, and a second support column is provided at the other end of the bottom plate of the first bracket in the length direction;

[0012] One end of the power board facing the first bracket is respectively mounted on the first support column and the second support column, and is respectively fastened to the first support column and the second support column.

[0013] Further, a first support is provided at one end of the bottom plate of the second bracket in the length direction, and a second support is provided at the other end of the bottom plate of the second bracket in the length direction;

[0014] One end of the power board facing the second bracket is supported on the first support and the second support respectively;

[0015] The support surface formed by the first support and the second support is flush with the support surface formed by the first pillar and the second support seat.

[0016] Furthermore, pressure plates are provided above the first support and the second support at intervals, and the power supply board is located between the pressure plate and the corresponding support.

[0017] Furthermore, an elastic pad is provided on a plate surface of the pressure plate on one side facing the power supply plate.

[0018] Furthermore, the second bracket is arranged on the power line inlet side of the power box;

[0019] A wire-holding hook is provided at one end of the second bracket in the length direction, and the strong wire of the range hood passes through the wire-holding hook.

[0020] Furthermore, a U-shaped slot is provided on the second bracket. The U-shaped slot is located at an end of the second bracket away from the wire hook, and the low-voltage wire of the range hood passes through the U-shaped slot.

[0021] The utility model also provides a range hood, comprising any one of the above power box components.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The power box assembly provided by the utility model comprises a power box and a power board, the power box is arranged on the top plate of the chassis of the range hood, the power box is provided with an air inlet for the external environment air to enter, the top plate of the chassis is provided with a ventilating port connecting the chassis and the power box, the power board is arranged in the power box, and the two sides of the power board are respectively fixed to the top plate of the chassis by a first bracket and a second bracket, so that the power board is lifted to a predetermined height from the bottom plate of the chassis. Thus, when the fan in the chassis is working, the air in the external environment can be sucked into the chassis through the power box, and when the air flows through the power box, the heat released by the power board can be taken away to achieve the purpose of cooling the power board; at the same time, by lifting the power board to a predetermined height from the bottom plate of the chassis, on the one hand, it is conducive to the full contact between the air and the power board, so as to effectively cool the power board, and on the other hand, it can also ensure that the air path between the power box and the chassis is unblocked, so as to ensure that the air in the external environment can smoothly enter the power box, and have sufficient air flow, thereby improving the heat dissipation efficiency, so as to effectively cool the power board, and can meet the heat dissipation requirements of the power board with a large current flux.

[0024] The utility model also provides a range hood, comprising the power box assembly, so the range hood also has the beneficial effects of the power box assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a power box assembly provided by an embodiment of the utility model at a first viewing angle on a chassis;

[0027] Figure 2 A schematic diagram of the structure of the power box assembly provided by an embodiment of the utility model at a second viewing angle on the chassis;

[0028] Figure 3 A schematic diagram of the structure of a first bracket of a power box assembly provided by an embodiment of the utility model at a first viewing angle;

[0029] Figure 4 A schematic diagram of the structure of the first bracket of the power box assembly provided by an embodiment of the utility model at a second viewing angle;

[0030] Figure 5 A schematic diagram of the structure of the second bracket of the power box assembly provided by an embodiment of the utility model at a first viewing angle;

[0031] Figure 6 A schematic structural diagram of the second bracket of the power box assembly provided in an embodiment of the utility model at a second viewing angle.

[0032] Reference numerals:

[0033] 1-chassis, 11-chassis top plate;

[0034] 2-power box, 21-first bracket, 22-second bracket, 23-bottom plate, 24-first pillar, 25-second pillar, 26-hook, 27-first connecting hole, 28-first support, 29-second support, 210-pressing plate, 211-cable hook, 212-U-shaped slot;

[0035] 3- Power board;

[0036] a-First direction. DETAILED DESCRIPTION

[0037] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0038] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0039] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Refer to the following Figures 1 to 6 A power box assembly and a range hood according to some embodiments of the present application are described.

[0043] The present application provides a power box assembly, such as Figure 1 and Figure 2 As shown, the power box assembly includes a power box 2 and a power board 3.

[0044] The power box 2 is arranged on the chassis top plate 11 of the range hood; specifically, the range hood is provided with a chassis 1, the fan of the range hood is located in the chassis 1, the top of the chassis 1 is provided with a chassis top plate 11, the power box 2 is located outside the chassis 1 and is arranged above the chassis 1, the power box 2 is buckled on the chassis top plate 11 with the opening facing downward, and is fastened to the chassis top plate 11 by fasteners.

[0045] The power board 3 is arranged in the power box 2. The box body of the power box 2 is provided with an air inlet. The power box 2 is connected with the external environment through the air inlet. The chassis top plate 11 is provided with a vent that penetrates the chassis top plate 11. The power box 2 is connected with the inside of the chassis 1 through the vent. Therefore, when the fan in the chassis 1 is working, the air in the external environment can enter the chassis 1 through the power box 2 and then be discharged through the fan. When the air in the external environment flows through the power box 2, it can take away the heat released by the power board 3, so as to achieve the purpose of cooling the power board 3 and make the temperature of the power board 3 within the normal working temperature range.

[0046] The power board 3 is fixed to the chassis top plate 11 on one side of the first direction a by the first bracket 21, and the power board 3 is fixed to the chassis top plate 11 on the other side of the first direction a by the second bracket 22, so that the power board 3 is stably installed in the power box 2, and the power board 3 is lifted to a predetermined height from the chassis top plate 11 by the first bracket 21 and the second bracket 22. On the one hand, this is conducive to full contact between the air and the upper and lower surfaces of the power board 3, and on the other hand, it can also ensure that the air path between the power box 2 and the chassis 1 is unobstructed, so as to ensure that the air from the external environment can smoothly enter the power box 2 and have sufficient air flow, thereby improving the heat dissipation efficiency, effectively cooling the power board 3, and being able to meet the heat dissipation requirements of the power board 3 with large current.

[0047] In one embodiment of the present application, preferably, Figures 3 to 6 As shown, the first bracket 21 and the second bracket 22 both include a bottom plate 23 , and the first bracket 21 and the second bracket 22 are respectively fixed to the chassis top plate 11 through their respective bottom plates 23 . Specifically, the length direction of the bottom plate 23 extends along a direction perpendicular to the first direction a, a hook 26 is provided at one end of the bottom plate 23 in the length direction, and a hook groove is provided at a position of the chassis top plate 11 opposite to the hook 26, the hook 26 can pass through the hook groove, so that the chassis top plate 11 at the edge of the hook groove is clamped in the hook 26, so that one end of the bottom plate 23 in the length direction can be quickly and detachably limited on the chassis top plate 11; a first connecting hole 27 is provided at the other end of the bottom plate 23 in the length direction (i.e., the end away from the hook 26), and a second connecting hole coaxially opposite to the first connecting hole 27 is provided on the chassis top plate 11, so that a fastener is passed through to fasten the bottom plate 23 and the chassis top plate 11, so that the bottom plate 23 is stably installed on the chassis top plate 11, and by clamping one end of the bottom plate 23 with the chassis top plate 11 by the hook 26 and connecting the other end with the chassis top plate 11 by the fastener, the disassembly and assembly of the bottom plate 23 and the chassis top plate 11 is more convenient.

[0048] In this embodiment, preferably, Figure 4 or Figure 6 As shown, the hook 26 is L-shaped, including a first connecting portion and a second connecting portion vertically connected, wherein the first connecting portion is arranged in parallel and spaced apart on the side of the bottom plate 23 facing the chassis top plate 11, and the first connecting portion is connected to the bottom plate 23 through the second connecting portion, and a holding space is formed between the first connecting portion, the second connecting portion and the bottom plate 23 for the chassis top plate 11 to be clamped.

[0049] Preferably, at least the first connecting portion of the hook 26 is elastic so that it can be pulled away from the bottom plate 23 to facilitate the insertion of the chassis top plate 11 into the hook 26, and after the external force disappears, the first connecting portion can return to its initial position to clamp the chassis top plate 11, so that one end of the bottom plate 23 is limitedly connected to the chassis top plate 11 through the hook 26.

[0050] In one embodiment of the present application, preferably, Figure 3As shown, in the first bracket 21, a first pillar 24 and a second pillar 25 are provided on the side of the bottom plate 23 facing away from the top plate 11 of the chassis, the first pillar 24 is provided at one end of the bottom plate 23 in the length direction, and the second pillar 25 is provided at the other end of the bottom plate in the length direction; one end of the power board 3 facing the first bracket 21 is respectively mounted on the first pillar 24 and the second pillar 25, and screw holes are respectively provided on the first pillar 24 and the second pillar 25, through holes are provided at positions where the power board 3 and the screw holes of the first pillar 24 are opposite, and at positions where the power board 3 and the screw holes of the second pillar 25 are opposite, so that the power board 3 can be fastened to the first pillar 24 and the second pillar 25 respectively by fastening screws, so that one end of the power board 3 in the first direction a is stably mounted on the first bracket 21.

[0051] In one embodiment of the present application, preferably, Figure 5 and Figure 6 As shown, in the second bracket 22, a first support 28 and a second support 29 are provided on the side of the bottom plate 23 facing away from the pad of the chassis 1, the first support 28 is provided at one end of the bottom plate 23 in the length direction, and the second support 29 is provided at the other end of the bottom plate 23 in the length direction. The second bracket 22 supports one end of the power board 3 toward the second bracket 22 through the first support 28 and the second support 29, and the supporting surface formed by the first support 28 and the second support 29 is flush with the supporting surface formed by the first support 24 and the second support 25, so that the power board 3 can be stably fixed in the power box and lifted to a predetermined height from the chassis top plate 11.

[0052] In this embodiment, preferably, Figure 5 and Figure 6 As shown, in the second bracket 22, a pressure plate 210 is provided at intervals above the first support 28, and a pressure plate 210 is also provided at intervals above the second support 29, thereby forming a limiting space for the insertion of the power board 3 above the first support 28 and the second support 29, so that the end of the power board 3 facing the second bracket 22 will not be tilted upward while being supported on the first support 28 and the second support 29, and the fastening installation method of the power board 3 at the first bracket 21 not only ensures the stability of the power board 3 in the power box 2, but also makes it easier to disassemble and assemble the power board 3 for repair or replacement.

[0053] Preferably, an elastic pad is provided on the side of the pressing plate 210 facing the power board 3 to prevent the pressing plate 210 from damaging the power board 3 .

[0054] It should be noted that the pressing plate 210 above the first support 28 and the second support 29 can be a complete pressing plate 210 or two independent pressing plates 210 .

[0055] In one embodiment of the present application, preferably, Figure 5 and Figure 6 As shown, the second bracket 22 is arranged on the power cord input side of the power box 2, and the second bracket 22 is provided with a wire hook 211 and a U-shaped slot 212. The wire hook 211 is arranged at one end of the second bracket 22 in the length direction, and the U-shaped slot 212 is arranged at the other end of the second bracket 22 in the length direction. The strong wires in the power box 2 (for example, the fan motor wire) are clamped in the wire hook 211, and the weak wires in the power box 2 (for example, the fan control panel wire) are clamped in the U-shaped slot 212, so as to effectively distinguish the strong current and the weak current in the power box 2, and ensure the safe operation of the fan.

[0056] The present application also provides a range hood, comprising a power box assembly according to any of the above embodiments.

[0057] In this embodiment, the range hood includes a power box assembly, so the range hood has all the beneficial effects of the power box assembly, which will not be described in detail here.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A power box assembly, characterized in that: It comprises a power box (2) and a power board (3); The power supply box (2) is used to be arranged on the top plate (11) of the range hood chassis, the power supply box (2) is provided with an air inlet, the top plate (11) of the chassis is provided with a vent, and the vent is connected to the power supply box (2); The power board (3) is arranged in the power box (2); one end of the power board (3) in a first direction (a) is fixed to the chassis top plate (11) via a first bracket (21); the other end of the power board (3) in the first direction (a) is fixed to the chassis top plate (11) via a second bracket (22), so that the power board (3) is lifted to a predetermined height from the chassis top plate (11).

2. The power box assembly according to claim 1, characterized in that: The first bracket (21) and the second bracket (22) both include a bottom plate (23); The bottom plate (23) has a length direction perpendicular to the first direction (a); one end of the bottom plate (23) in the length direction is provided with a hook (26); the top plate (11) of the chassis is provided with a hook groove that cooperates with the hook (26); and the other end of the bottom plate (23) in the length direction is fixedly connected to the top plate (11) of the chassis.

3. The power box assembly according to claim 2, characterized in that: The hook (26) is L-shaped and comprises a first connecting portion and a second connecting portion which are vertically connected. The first connecting portion is arranged in parallel and spaced apart on a side of the bottom plate (23) facing the chassis top plate (11), and the first connecting portion is connected to the bottom plate (23) via the second connecting portion. A holding space for the chassis top plate (11) to be engaged is formed between the first connecting portion, the second connecting portion and the bottom plate (23).

4. The power box assembly according to claim 2, characterized in that: A first support column (24) is provided at one end of the bottom plate (23) of the first bracket (21) in the length direction, and a second support column (25) is provided at the other end of the bottom plate (23) of the first bracket (21) in the length direction; One end of the power board (3) facing the first bracket (21) is respectively mounted on the first support column (24) and the second support column (25), and is respectively firmly connected to the first support column (24) and the second support column (25).

5. The power box assembly according to claim 4, characterized in that: A first support (28) is provided at one end of the bottom plate (23) of the second bracket (22) in the length direction, and a second support (29) is provided at the other end of the bottom plate (23) of the second bracket (22) in the length direction; One end of the power board (3) facing the second bracket (22) is supported on the first support (28) and the second support (29) respectively; The support surface formed by the first support (28) and the second support (29) is flush with the support surface formed by the first pillar (24) and the second pillar (25).

6. The power box assembly according to claim 5, characterized in that: A pressure plate (210) is provided above the first support (28) and the second support (29) at intervals, and the power supply board (3) is located between the pressure plate (210) and the corresponding support.

7. The power box assembly according to claim 6, characterized in that: An elastic pad is provided on a side surface of the pressing plate (210) facing the power supply plate (3).

8. The power box assembly according to claim 1, characterized in that: The second bracket (22) is arranged on the power line inlet side of the power box (2); A wire-holding hook (211) is provided at one end of the second bracket (22) in the length direction, and the strong wire of the range hood passes through the wire-holding hook (211).

9. The power box assembly according to claim 8, characterized in that: The second bracket (22) is also provided with a U-shaped slot (212), the U-shaped slot (212) being located at an end of the second bracket (22) away from the wire hook (211), and the weak wire of the range hood passes through the U-shaped slot (212).

10. A range hood, characterized in that: A power box assembly comprising any one of claims 1 to 9.

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