A threading plate assembly for a range hood

Abstract

The utility model relates to a kind of threading board components for range hood, for being installed on the substrate of range hood to be installed, the substrate is provided with mounting hole, threading board sealing structure includes threading board, the threading board is provided with threading hole for wire, wire loop assembly for being sleeved outside wire is embedded in the threading hole, the threading board includes at least two blocks of splicing plate that can be spliced together and form complete threading board, two adjacent splicing plates are provided with half through-hole at the edge position of splicing, each splicing plate is detachably mounted at the mounting hole of the substrate, in the splicing plate at the mounting hole of the substrate is spliced to place state, the half through-hole on two adjacent splicing plates is opposite to form a complete threading hole. Advantage lies in: flexible and convenient wiring, can effectively improve the applicability of threading board.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a wiring board assembly for a range hood. Background Technology

[0002] The controller of a range hood is connected to its various actuators via a wiring harness. This harness typically passes through a cable tray and a sealing ring located on the main body of the range hood. The sealing ring, usually a rubber-coated wire seal, is used to protect the wire insulation from abrasion by the metal plate. It not only protects the wire insulation but also prevents oil fume particles from escaping into the electrical box and corroding the control board. Existing cable tray sealing structures are generally as follows: one type is... Figure 1 The single-wire conduit 20 shown can only accommodate one wire a of a single specification, which cannot meet the practical needs of connecting multiple different wire harnesses inside the range hood to the control board, motor, panel, etc. Each additional wire requires an extra hole to install a separate conduit, which is cumbersome, space-consuming, costly, and has extremely poor versatility. Another option is... Figure 2 The elliptical multi-wire conduit 20 shown can accommodate multiple wires a, but its reliance on the "grid-type sealing sheet 22" separation method has inherent defects. It is difficult to form a tight and reliable seal between the wires and the grid holes, and between the wires themselves, resulting in small gaps s. This allows oil fume particles to easily seep into the electrical box through these gaps, accumulating over time and corroding critical electrical components such as the control board, severely impacting product lifespan and safety. In particular, the grid separation holes are pre-set and relatively fixed, making it impossible to flexibly adjust or add / remove them later based on the actual wire thickness, quantity, and direction. The wires are forcibly constrained in specific positions, potentially causing wiring difficulties, excessive wire bending, or poor heat dissipation, lacking design and usage flexibility.

[0003] Therefore, the existing wiring board assembly used in range hoods still needs further improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wiring board assembly for range hoods that offers flexible and convenient wiring and effectively improves the applicability of wiring boards, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a wire guide plate assembly for a range hood, used for installation on a base plate of the range hood to be installed. The base plate has an installation hole. The wire guide plate sealing structure includes a wire guide plate. The wire guide plate has a wire hole for wires to pass through. A protective coil assembly for sleeved on the wire is embedded in the wire hole. The wire guide plate includes at least two splicing plates that can be spliced ​​together to form a complete wire guide plate. Two adjacent splicing plates have semi-through holes at the edge where they are spliced ​​together. Each splicing plate is detachably installed at the installation hole of the base plate. When each splicing plate is spliced ​​in place at the installation hole of the base plate, the semi-through holes on the two adjacent splicing plates face each other to form a complete wire hole.

[0006] The aforementioned "detachable method" can be understood as the use of a non-destructive connection structure between components, allowing for repeated disassembly and assembly. Examples include snap-fit ​​connections, threaded fastenings, and magnetic fixation.

[0007] The aforementioned "splicing in place state" can be understood as the splicing boards being fully assembled according to the design position, with the semi-through holes aligned to form complete wire-passing holes, and fixed to the mounting holes of the substrate.

[0008] As an improvement, the mounting holes on the substrate are oblong holes, and each of the splicing panels is arranged sequentially along the length direction of the oblong hole. The two ends of each splicing panel along its length are respectively connected to two opposite sides along the width direction of the oblong hole. The oblong hole design provides a relatively long and narrow extension space, allowing for linear arrangement of the splicing panels and accommodating more wiring holes. The two ends of the splicing panels are fixed to the sides of the oblong hole to prevent shaking or detachment after installation.

[0009] As an improvement, each of the splicing plates includes a first plate and a second plate respectively arranged at both ends along the length of the waist-shaped hole, and at least one third plate disposed between the first plate and the second plate. This structural design strengthens the overall structure of the threading plate, with the first and second plates fixing the two ends and the third plate filling the middle, thus improving the overall load-bearing capacity. The number of threading holes on the threading plate can be flexibly adjusted by increasing or decreasing the number of third plates.

[0010] As an improvement, there are at least two third plates, each with a structure that may be the same or different. This design allows for standardized production of some common plates, which can be combined as needed, reducing production costs.

[0011] As an improvement, the first and second plates have identical structures. The two end plates are interchangeable, reducing the number of parts and lowering production and spare parts costs. There is no need to distinguish between the left and right end plates, reducing assembly error rates.

[0012] To further ensure the secure installation of each splicing panel, the edges of the first, second, and third panels are respectively provided with a first snap-fit ​​groove, a second snap-fit ​​groove, and a third snap-fit ​​groove for the edges of the mounting holes to be embedded therein. In any two adjacent panels, one panel has a side edge with a snap-fit ​​plate protruding laterally to press against the back of the other panel. The aforementioned "snap-fit ​​plate" can be a sheet-like structure extending laterally from the side edge of the corresponding panel, used for hooking or pressing adjacent components.

[0013] As an improvement, the coil guard assembly includes a coil guard with an annular mounting groove on its outer periphery for the edge of the threading hole to be embedded therein. This structural design of the coil guard ensures that the annular mounting groove and the edge of the threading hole mechanically engage, preventing vibration-induced loosening. The coil guard can be pre-assembled independently onto the splicing plate, simplifying the overall assembly process.

[0014] Considering that a single-diameter retainer coil cannot accommodate wires of different diameters and is prone to gaps, a detachable sealing ring is included to accommodate wires of different outer diameters and ensure sealing. This sealing ring is installed in the inner hole of the retainer coil, and there may be one or at least two sealing rings sequentially arranged radially. By replacing / stacking the sealing rings, different wire thicknesses can be matched, ensuring a tight seal. Furthermore, only the sealing ring needs to be replaced after wear; there is no need to disassemble the retainer coil or the wire guide plate.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: The wiring board assembly of this utility model consists of multiple detachable splicing plates. When adjacent splicing plates are spliced ​​together, the semi-through holes combine to form a complete wiring hole. During installation, the number of splicing plates can be freely increased, decreased, or adjusted according to the actual number, thickness, and direction of the wire harness, completely breaking through the fixed limitations of traditional single-hole or grid hole positions. Whether adding motor lines or adjusting the wire harness layout, there is no need for additional holes or replacement of the overall structure, greatly improving design freedom and ease of later maintenance. On the other hand, since each wiring hole is embedded with an independent protective coil assembly, tightly wrapping a single wire, the problem of gap leakage caused by multiple wires sharing holes in grid-type sealing sheets is completely solved. Oil fume particles cannot enter the electrical box through the gaps between wires, effectively protecting the control board from corrosion and significantly improving product safety and service life. The splicing plates are detachably installed independently on the base plate, and local adjustments do not require overall disassembly. The modular design reduces redundant parts, avoids the space-consuming problem of stacking multiple wiring boards in traditional solutions, reduces material costs and assembly complexity, and enhances structural versatility. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a threading plate assembly in the prior art;

[0017] Figure 2 This is a schematic diagram of another threading plate assembly in the prior art;

[0018] Figure 3 This is a three-dimensional structural diagram of the threading plate assembly according to an embodiment of the present utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the threading plate assembly from another angle according to an embodiment of the present utility model;

[0020] Figure 5 This is an exploded view of the threading plate assembly according to an embodiment of the present utility model;

[0021] Figure 6 This is a cross-sectional view of the threading plate assembly according to an embodiment of the present utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0024] Figures 3-6 This illustration shows a preferred embodiment of the wiring plate assembly for a range hood according to the present invention. The wiring plate assembly is used to mount on the mounting plate (which can be a base plate 10) of the range hood. The base plate 10 is part of the main body of the range hood and is typically made of sheet metal, with mounting holes 11 formed thereon. The wiring plate 20 sealing structure includes the wiring plate 20 and a coil guard assembly 30. The wiring plate 20 consists of at least two interlocking panels (e.g., two or three panels), each panel being independently mounted at the mounting holes 11 of the base plate 10 via a detachable method (e.g., snap-fit ​​connection). Adjacent panels have semi-through holes 201 (i.e., semi-circular or semi-elliptical through holes) at their joint edges. When all panels are joined at the mounting holes 11 of the base plate 10, the semi-through holes 201 of adjacent panels are aligned, forming a complete circular wiring hole 200.

[0025] See Figure 6In this embodiment, the coil protector assembly 30 is embedded in the wire hole 200 for housing the wire a. The coil protector assembly 30 includes a coil protector 31, which may be made of elastic rubber, and has an annular mounting groove 310 on its outer periphery. During installation, the edge of the wire hole 200 is embedded in the annular mounting groove 310, forming a tight mechanical engagement. The wire passes through the inner hole of the coil protector 31, and the coil protector 31 protects the outer sheath of the wire a from abrasion by the substrate 10 and prevents oil fume particles from seeping into the electrical box.

[0026] A sealing ring 32 is detachably installed in the inner hole of the coil protector 31 of the coil protector assembly 30. The number of sealing rings 32 can be flexibly configured according to the outer diameter of the wire. For example, a single sealing ring 32 is suitable for standard diameter wires; multiple sealing rings 32 can also be radially nested. For example, after multiple sealing rings 32 are nested radially, their inner rings are suitable for thin wires (e.g., 2mm in diameter), and after removing the innermost one or two, their inner rings can be suitable for thicker wires (e.g., 5mm in diameter). The sealing ring 32 replacement process is as follows: remove the old sealing ring 32 from the inner hole of the coil protector 31, select a single-layer or nested sealing ring 32 according to the outer diameter of the wire, and press the new sealing ring 32 into the inner hole of the coil protector 31.

[0027] See Figure 5 In this embodiment, the mounting hole 11 of the substrate 10 is an oblong hole (i.e., a long oval hole). Each splicing plate is arranged linearly along the length of the oblong hole. Each splicing plate includes a first plate 21 and a second plate 22 disposed at both ends of the oblong hole, and at least one third plate 23 (e.g., one or two third plates 23) located between them. The two ends of each splicing plate along its length are respectively connected to opposite sides along the width of the oblong hole and fixed by snap-fits. In some embodiments, the first plate 21 and the second plate 22 have the same structure, both being end plates, with a first snap-fit ​​groove 210 and a second snap-fit ​​groove 220 along their edges for the corresponding edges of the mounting hole 11 of the substrate 10 to be inserted. The third plate 23 is an intermediate plate, with a third snap-fit ​​groove 230 along its edges, also for the corresponding edges of the mounting hole 11 of the substrate 10 to be inserted.

[0028] The length of the oblong hole in this embodiment can be adjusted according to the number of third plates 23 (e.g., increasing the number of third plates 23 can expand the number of wire holes 200), that is, the number of third plates 23 can be two or more. The structure of each third plate 23 can be the same (standardized production) or different (e.g., to adapt to special wire diameters). Of course, the mounting holes 11 of the substrate 10 are not limited to oblong holes, but oblong holes can provide optimal linear layout space.

[0029] To ensure the secure installation of the splicing panels, the edges of the first panel 21, the second panel 22, and the third panel 23 are respectively provided with a first latching groove 210, a second latching groove 220, and a third latching groove 230. During installation, the edges of the mounting holes 11 on the substrate 10 are inserted into the corresponding latching grooves. Between the first panel 21 and the adjacent third panel 23, the side edge of the first panel 21 has a latching plate 24 (a sheet-like extension structure) protruding to the side. When spliced ​​in place, the latching plate 24 presses against the back of the third panel 23 (i.e., the inner side not visible from the outside) to prevent the panels from separating. Similarly, the third panel 23 and the second panel 22 are interlocked by the latching plate 24.

[0030] Insert the snap-fit ​​groove of the first plate 21 into one side of the oblong hole. Push the third plate 23 toward the first plate 21, aligning it with the semi-through hole 201, while the back of the third plate 23 is pressed against the snap plate 24 of the first plate 21. Repeat the above steps to add more third plates 23. Finally, install the second plate 22, whose snap plate 24 locks the end of the third plate 23. The snap plate 24 is designed to provide lateral restraint and enhance vibration resistance. The snap-fit ​​grooves of the corresponding plates simplify installation and allow for quick disassembly and maintenance.

[0031] The installation process of the threading plate assembly in this embodiment is as follows:

[0032] The number of splicing boards is determined based on the actual number of wire harnesses (for example, three splicing boards are selected when three wires need to be run). Each splicing board is placed sequentially at the mounting holes 11 of the base plate 10, ensuring that the semi-through holes 201 of adjacent splicing boards are aligned. Each splicing board is detachably fixed to the base plate 10 using a snap-fit ​​structure, forming a complete wiring board 20. At this point, the semi-through holes 201 combine to form multiple independent wiring holes 200. The protective coil 31 is pressed into each wiring hole 200, causing its annular mounting groove 310 to clamp tightly against the edge of the wiring hole 200. The wires are then sequentially passed through the inner hole of the protective coil 31 to complete the sealed wiring.

[0033] The splicing panels can be freely added or removed to accommodate different numbers of wire harnesses (such as control boards, motors, and panel wiring) without requiring additional openings. Each wire hole is individually wrapped with a 200mm wire, eliminating gaps between wires, significantly improving sealing, and preventing oil fumes from corroding electrical components.

[0034] The wiring board assembly in this embodiment consists of multiple detachable splicing boards. When adjacent splicing boards are spliced ​​together, the semi-through holes 201 combine to form a complete wiring hole 200. During installation, the number of splicing boards can be freely increased, decreased, or adjusted according to the actual number, thickness, and direction of the wire harness, completely breaking through the fixed limitations of traditional single-hole or grid hole positions. Whether adding motor lines or adjusting the wire harness layout, no additional holes or replacement of the overall structure is required, greatly improving design freedom and ease of later maintenance. On the other hand, since each wiring hole 200 has an embedded independent protective coil assembly 30 that tightly wraps a single wire, the problem of gap leakage caused by multiple wires sharing holes in the grid-type sealing sheet is completely solved. Oil fume particles cannot enter the electrical box through the gaps between the wires, effectively protecting the control board from corrosion and significantly improving product safety and service life. The splicing boards are detachably installed independently on the base plate 10, and local adjustments do not require overall disassembly. The modular design reduces redundant parts, avoids the space occupation problem of stacking multiple wiring boards 20 in traditional solutions, reduces material costs and assembly complexity, and enhances structural versatility.

Claims

1. A wiring assembly for a range hood, used for mounting on a base plate (10) of the range hood to be installed, wherein the base plate (10) has mounting holes (11), characterized in that: The sealing structure of the wire guide plate (20) includes a wire guide plate (20), which has a wire guide hole (200) for wires to pass through. A protective coil assembly (30) for sleeved on the wire is embedded in the wire guide hole (200). The wire guide plate (20) includes at least two splicing plates that can be spliced ​​together to form a complete wire guide plate (20). Two adjacent splicing plates have a semi-through hole (201) at the edge where they are spliced ​​together. Each splicing plate is detachably installed at the mounting hole (11) of the substrate (10). When each splicing plate is spliced ​​in place at the mounting hole (11) of the substrate (10), the semi-through holes (201) on the two adjacent splicing plates face each other to form a complete wire guide hole (200).

2. The wiring assembly for a range hood according to claim 1, characterized in that: The mounting holes (11) on the substrate (10) are waist-shaped holes. Each splicing plate is arranged sequentially along the length direction of the waist-shaped hole, and the two ends of each splicing plate along the length direction are respectively connected to the two opposite sides in the width direction of the waist-shaped hole.

3. The wiring board assembly for a range hood according to claim 2, characterized in that: Each of the splicing plates includes a first plate (21) and a second plate (22) respectively arranged at the two ends of the waist-shaped hole in the length direction, and at least one third plate (23) disposed between the first plate (21) and the second plate (22).

4. The wiring board assembly for a range hood according to claim 3, characterized in that: There are at least two third plates (23), and the structures of each third plate (23) may be the same or different.

5. The wiring assembly for a range hood according to claim 4, characterized in that: The first plate (21) and the second plate (22) have the same structure.

6. The wiring board assembly for a range hood according to claim 3, characterized in that: The edges of the first plate (21), the second plate (22), and the third plate (23) are respectively provided with a first snap-fit ​​groove (210), a second snap-fit ​​groove (220), and a third snap-fit ​​groove (230) for the edge of the mounting hole (11) to be embedded therein. In any two adjacent plates of the first plate (21), the second plate (22), and the third plate (23), one of the plates has a buckle plate (24) that protrudes to the side to press against the back of the other plate.

7. The wiring assembly for a range hood according to any one of claims 1 to 6, characterized in that: The coil guard assembly (30) includes a coil guard (31), and the outer periphery of the coil guard (31) is provided with an annular mounting groove (310) for the edge of the thread hole (200) to be embedded therein.

8. The wiring assembly for a range hood according to claim 7, characterized in that: It also includes a detachable sealing ring (32) installed in the inner hole of the protective coil (31), the sealing ring (32) having one or at least two sequentially fitted in the radial direction.

Images