Wire harness fixing structure of indoor unit of air conditioner

Abstract

The utility model relates to an air conditioner indoor unit wire harness fixing structure, and belongs to the technical field of air conditioners. The wire clamping device comprises a wire clamping groove formed in an air conditioner bottom frame, the wire clamping groove comprises a wire clamping bottom plate, the wire clamping bottom plate is horizontally arranged as a reference state, an L-shaped limiting arm plate is fixedly arranged on the left side of the upper surface of the wire clamping bottom plate, an L-shaped elastic hook is fixedly arranged on the right side of the upper surface of the wire clamping bottom plate, and the L-shaped limiting arm plate comprises a first vertical plate and a transverse limiting part. The L-shaped elastic hook comprises a second vertical plate and a hook part, the first vertical plate and the second vertical plate are oppositely arranged, the lower surface of the hook part and the upper surface of the transverse limiting part are combined to form a first wire passing channel, and the right side end face of the transverse limiting part and the left side surface of the second vertical plate are combined to form a second wire passing channel. When the L-shaped elastic hook is in a natural state, the thread passing width of the first thread passing channel is smaller than that of the second thread passing channel. The device is simple and reliable in structure and high in universality.

Description

Technical Field

[0001] The utility model relates to a wire harness fixing structure for an air conditioner indoor unit, belonging to the technical field of air conditioners. Background Art

[0002] Generally, the wire harness used in current air conditioners consists of two parts. The inside is multiple scattered wires, and the outer layer is an insulating cortex, which plays the role of gathering the multiple internal wires and providing insulation. Classified by the insulating cortex, there are generally two types of wire harnesses. One is that the outer insulating cortex tightly wraps the wires. The insulating cortex is thicker and harder and is not easily deformed when subjected to radial force, but this type of wire harness is more expensive. The other is that the outer insulating cortex is thinner and is easily deformed when subjected to radial force, but it is cheaper, and the multiple internal wires are loosely gathered together.

[0003] Currently, the above two types of wire harnesses are commonly used in air conditioners. For example, two wire harnesses for the guide vane stepper motors and one wire harness for the display module are connected from the electronic control box. The two wire harnesses for the guide vane stepper motors have a thicker and harder outer insulating cortex and are not easily deformed when subjected to radial force, and the diameter of the wire harness is 5 mm. One wire harness for the display module has a thinner outer insulating cortex and is easily deformed when subjected to radial force. The non-deformed diameter of the wire harness is 4 mm, but due to the loose internal wires, the actual diameter variation range of the wire harness is between 2 mm and 4 mm. It is relatively easy to implement a fixing structure that only fixes one of the wire harnesses. However, for a structure that fixes both wire harnesses at the same time, since the insulating cortex of the second wire harness is thinner and is easily deformed when subjected to radial force, while ensuring that the first wire harness can be smoothly inserted into the fixing structure, the second wire harness will easily fall out of the fixing structure. In the conventional solution, the two wire harnesses for the guide vane stepper motors and the wire harness for the display module usually have to be routed separately, making the structure relatively complex. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a wire harness fixing structure for an air conditioner indoor unit with a simple and reliable structure and capable of clamping two specifications of wires at the same time.

[0005] The technical solution adopted by the present utility model to solve the above technical problems is: a wire harness fixing structure for an air conditioner indoor unit, including a wire clamping groove provided on the bottom frame of the air conditioner. The wire clamping groove includes a wire clamping bottom plate. Taking the horizontal setting of the wire clamping bottom plate as the reference state, an L-shaped limiting arm plate is fixedly arranged on the left side of the upper surface of the wire clamping bottom plate, and an L-shaped elastic hook is fixedly arranged on the right side. The L-shaped limiting arm plate includes a first vertical plate connected to the upper surface of the wire clamping bottom plate and a horizontal limiting part integrally connected to the top end of the first vertical plate. The L-shaped elastic hook includes a second vertical plate connected to the upper surface of the wire clamping bottom plate and a hook part integrally connected to the top end of the second vertical plate. The first vertical plate and the second vertical plate are arranged oppositely. The horizontal limiting part extends towards the direction close to the second vertical plate, and the hook part extends towards the direction close to the first vertical plate. The position of the hook part is higher than the position of the horizontal limiting part. The combination of the lower surface of the hook part and the upper surface of the horizontal limiting part forms a first wire passing channel. The combination of the right end face of the horizontal limiting part and the left surface of the second vertical plate forms a second wire passing channel. The combination of the upper surface of the wire clamping bottom plate, the right surface of the first vertical plate, the lower surface of the horizontal limiting part, and the left surface of the second vertical plate forms a wire accommodating space of the wire clamping groove. When the L-shaped elastic hook is in a natural state, the wire passing width of the first wire passing channel is smaller than that of the second wire passing channel.

[0006] Further preferably: Two wires with different diameter specifications are clamped in the wire clamping groove. The wire with a relatively larger diameter among the two wires is the first wire, and the wire with a relatively smaller diameter is the second wire. When the L-shaped elastic hook is in a natural state, the wire passing width of the first wire passing channel is smaller than the diameter of the first wire and smaller than the diameter of the second wire, and the wire passing width of the second wire passing channel is smaller than the diameter of the first wire but larger than the diameter of the second wire.

[0007] Further preferably: The wire clamping groove is arranged above the electronic control box. The first wire is the wire of the air deflector stepping motor, and the second wire is the wire of the display module.

[0008] Further preferably: The diameter of the wire of the air deflector stepping motor is 5 mm, and the diameter of the wire of the display module is 4 mm. When the L-shaped elastic hook is in a natural state, the wire passing width of the first wire passing channel is 2.6 mm to 3 mm, and the wire passing width of the second wire passing channel is 4.3 mm to 4.7 mm.

[0009] Further preferably: The lower surface of the hook part includes a convex arc surface arranged oppositely to the upper surface of the horizontal limiting part. The convex arc surface is smoothly connected to the left surface of the second vertical plate through a concave arc surface. The combination of the convex arc surface and the upper surface of the horizontal limiting part forms the first wire passing channel.

[0010] Further preferably: The wire clamping bottom plate, the L-shaped limiting arm plate, and the L-shaped elastic hook are an integrally injection-molded structure, and the thickness of the L-shaped elastic hook is uniformly set.

[0011] Further preferably, the L-shaped elastic hook includes an L-shaped hook body with a thickness of 1.8 mm to 2 mm, and rib plates are integrally formed on the front and back sides of the back surface of the L-shaped hook body respectively.

[0012] Further preferably, at least one side surface of the front and back sides of the lateral limiting portion is provided with a boss at the right end position.

[0013] The beneficial effects of the present utility model are as follows: A first wire passing channel and a second wire passing channel with different wire passing widths are integrally designed in the same wire clamping groove. The first wire passing channel is located in the hook portion with relatively large elastic deformation ability, and wires within a certain diameter range can be conveniently clamped. The second wire passing channel is used to clamp wires with relatively large diameter specifications and not easily deformed. Both the first wire passing channel and the second wire passing channel can play a limiting role for wires with relatively large diameter specifications and not easily deformed, while the first wire passing channel mainly plays a limiting role for wires with relatively small diameter specifications and easily deformed. The structure of the present utility model is simple, the performance is reliable, and the applicable range is wide. A wire harness fixing structure can be applicable to wire harnesses with a certain range of diameters or wire harnesses with a certain range of thicknesses, and the versatility is strong. Description of the Drawings

[0014] Figure 1 It is an overall three-dimensional structure schematic diagram of the present utility model (without wire arrangement and without showing the electric control box).

[0015] Figure 2 It is an overall three-dimensional structure schematic diagram of the present utility model (with wire arrangement and without showing the electric control box).

[0016] Figure 3 It is a partially enlarged three-dimensional structure diagram of the present utility model.

[0017] Figure 4 It is a partially enlarged two-dimensional structure diagram of the present utility model.

[0018] Component marks in the figure: air conditioner bottom frame 1, wire clamping bottom plate 2, L-shaped limiting arm plate 3, L-shaped elastic hook 4, first wire passing channel 5, second wire passing channel 6, wire of air deflector stepping motor 7, wire of display module 8, convex arc surface 9, concave arc surface 10, rib plate 11, boss 12. Detailed Embodiments

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] It should be noted that the definitions of upper, lower, left, right, front, back and other orientations in the present utility model are only for facilitating the understanding of the technical solution, and the actual specific orientations can be adaptively changed according to the different placement states of the product.

[0021] As shown Figures 1 to 4 in the figure, the utility model includes a wire clamping groove arranged on the air conditioner bottom frame 1. The wire clamping groove includes a wire clamping bottom plate 2. Taking the horizontal setting of the wire clamping bottom plate 2 as the reference state, an L-shaped limiting arm plate 3 is fixedly arranged on the left side of the upper surface of the wire clamping bottom plate 2, and an L-shaped elastic hook 4 is fixedly arranged on the right side. The L-shaped limiting arm plate 3 includes a first vertical plate connected to the upper surface of the wire clamping bottom plate 2 and a horizontal limiting part integrally connected to the top end of the first vertical plate. The L-shaped elastic hook 4 includes a second vertical plate connected to the upper surface of the wire clamping bottom plate 2 and a hook part integrally connected to the top end of the second vertical plate. The first vertical plate and the second vertical plate are arranged oppositely. The horizontal limiting part extends towards the direction close to the second vertical plate, and the hook part extends towards the direction close to the first vertical plate. The position of the hook part is higher than that of the horizontal limiting part. The combination of the lower surface of the hook part and the upper surface of the horizontal limiting part constitutes a first wire passing channel 5. The combination of the right end face of the horizontal limiting part and the left side surface of the second vertical plate constitutes a second wire passing channel 6. The combination of the upper surface of the wire clamping bottom plate 2, the right side surface of the first vertical plate, the lower surface of the horizontal limiting part and the left side surface of the second vertical plate constitutes the wire accommodating space of the wire clamping groove. When the L-shaped elastic hook 4 is in the natural state, the wire passing width of the first wire passing channel 5 is smaller than that of the second wire passing channel 6. The "wire passing width of the first wire passing channel 5" refers to the minimum vertical distance between the lower surface of the hook part and the upper surface of the horizontal limiting part. The "wire passing width of the second wire passing channel 6" refers to the minimum horizontal distance between the right end face of the horizontal limiting part and the left side surface of the second vertical plate. In the preferred scheme, the lower surface of the hook part includes a convex arc surface 9 arranged opposite to the upper surface of the horizontal limiting part. The convex arc surface 9 is smoothly connected to the left side surface of the second vertical plate through a concave arc surface 10. The combination of the convex arc surface 9 and the upper surface of the horizontal limiting part constitutes the first wire passing channel 5. The wire passing width of the first wire passing channel 5 shows a trend of gradually decreasing first and then gradually increasing, which can more conveniently guide the wire to be clamped. Except for the necessary chamfer structure at the upper end, the right end face of the horizontal limiting part is usually parallel to the left side surface of the second vertical plate, and the wire passing width of the first wire passing channel 5 remains basically unchanged.

[0022] During specific implementation, two kinds of wires with different diameter specifications are clamped in the wire clamping groove. The specific values of the wire passing width of the first wire passing channel 5 and the wire passing width of the second wire passing channel 6 can be reasonably designed according to the wire specifications. The preferred scheme is that among the two kinds of wires, the one with a relatively larger diameter is the first wire, and the one with a relatively smaller diameter is the second wire. When the L-shaped elastic hook 4 is in the natural state, the wire passing width of the first wire passing channel 5 is smaller than the diameter of the first wire and smaller than the diameter of the second wire, and the wire passing width of the second wire passing channel 6 is smaller than the diameter of the first wire but larger than the diameter of the second wire.

[0023] The position of the wire slot can be reasonably designed on the bottom frame 1 of the air conditioner according to the different fixed objects. In the utility model, it is mainly used to clamp and fix the air deflector stepper motor wire 7 and the display module wire 8 connected from the electric control box. Therefore, the wire slot is correspondingly arranged at the upper position of the electric control box (the electric control box is not shown in the figure), wherein the first wire is the air deflector stepper motor wire 7, and the second wire is the display module wire 8. More specifically, the diameter of the air deflector stepper motor wire 7 is 5mm, and the diameter of the display module wire 8 is 4mm. When the L-shaped elastic hook 4 is in a natural state, the wire width of the first wire passage 5 is 2.6mm to 3mm (preferably 2.8mm), and the wire width of the second wire passage 6 is 4.3mm to 4.7mm (preferably 4.5mm). The wire accommodation space in this embodiment needs to be sufficient to accommodate two air deflector stepper motor wires 7 and one display module wire 8. The left and right spacing of the space can be designed to be 11.5mm, and the vertical spacing is 9.5mm.

[0024] For the convenience of processing, the wire clamping bottom plate 2, the L-shaped limit arm plate 3 and the L-shaped elastic hook 4 are an integral structure formed by injection molding. For the convenience of processing and convenient control of the elastic deformation ability of the L-shaped elastic hook 4, the thickness of the L-shaped elastic hook 4 is uniformly set. More preferably, the L-shaped elastic hook 4 includes an L-shaped hook body with a thickness of 1.8mm to 2mm, and the front and rear sides of the back of the L-shaped hook body are respectively integrally formed with ribs 11, which can adjust the elasticity of the hook structure and strengthen the structural strength of the hook structure.

[0025] Preferably, at least one of the front and rear sides of the lateral limiting portion has a boss 12 at the right end, and the boss 12 can play an auxiliary limiting role for the second electric wire with a relatively small diameter. Because the wire harness diameter of the display module wire 8 varies greatly and is easy to pass through the second wire passage 6, the role of this boss 12 is to block the display module wire 8, which can effectively prevent the wire harness from escaping from the wire accommodating space of the wire slot. The height of the boss 12 can be reasonably set according to actual conditions.

Claims

1. A wiring harness fixing structure for an indoor unit of an air conditioner, comprising a wiring slot arranged on a bottom frame (1) of the air conditioner, characterized in that: The wire clamping slot comprises a wire clamping bottom plate (2), with the wire clamping bottom plate (2) being arranged horizontally as a reference state, an L-shaped limiting arm plate (3) is fixedly arranged on the left side of the upper surface of the wire clamping bottom plate (2), and an L-shaped elastic curved hook (4) is fixedly arranged on the right side, the L-shaped limiting arm plate (3) comprises a first vertical plate connected to the upper surface of the wire clamping bottom plate (2) and a transverse limiting portion connected to the top end of the first vertical plate as an integral whole, the L-shaped elastic curved hook (4) comprises a second vertical plate connected to the upper surface of the wire clamping bottom plate (2) and a curved hook portion connected to the top end of the second vertical plate as an integral whole, the first vertical plate and the second vertical plate are arranged relative to each other, and the transverse limiting portion extends in a direction close to the second vertical plate. The hook portion is arranged to extend in a direction close to the first vertical plate, the position of the hook portion is higher than the position of the transverse limiting portion, the lower surface of the hook portion and the upper surface of the transverse limiting portion are combined to form a first wire passing channel (5), the right end surface of the transverse limiting portion and the left surface of the second vertical plate are combined to form a second wire passing channel (6), the upper surface of the wire clamping bottom plate (2), the right surface of the first vertical plate, the lower surface of the transverse limiting portion and the left surface of the second vertical plate are combined to form a wire accommodating space of the wire clamping groove, and when the L-shaped elastic hook (4) is in a natural state, the wire passing width of the first wire passing channel (5) is smaller than the wire passing width of the second wire passing channel (6).

2. The air conditioner indoor unit wiring harness fixing structure according to claim 1, characterized in that: Two electric wires with different diameters are inserted into the wire slot, the electric wire with a relatively larger diameter is a first electric wire, and the electric wire with a relatively smaller diameter is a second electric wire; when the L-shaped elastic hook (4) is in a natural state, the wire passing width of the first wire passing channel (5) is smaller than the diameter of the first wire and smaller than the diameter of the second wire, and the wire passing width of the second wire passing channel (6) is smaller than the diameter of the first wire but larger than the diameter of the second wire.

3. The air conditioner indoor unit wiring harness fixing structure according to claim 2, characterized in that: The wire slot is arranged above the electric control box, the first wire is the wire of the air guide plate stepping motor (7), and the second wire is the wire of the display module (8).

4. The air conditioner indoor unit wiring harness fixing structure according to claim 3, characterized in that: The diameter of the air guide plate stepper motor wire (7) is 5 mm, the diameter of the display module wire (8) is 4 mm, and when the L-shaped elastic hook (4) is in a natural state, the wire width of the first wire passage (5) is 2.6 mm to 3 mm, and the wire width of the second wire passage (6) is 4.3 mm to 4.7 mm.

5. The air conditioner indoor unit wiring harness fixing structure according to claim 1, characterized in that: The lower surface of the hook portion comprises a convex arc surface (9) arranged opposite to the upper surface of the transverse limiting portion; the convex arc surface (9) is smoothly transitionally connected to the left side surface of the second vertical plate via a concave arc surface (10); the convex arc surface (9) and the upper surface of the transverse limiting portion are combined to form a first wire-passing channel (5).

6. The air conditioner indoor unit wiring harness fixing structure according to claim 1, characterized in that: The wire clamping bottom plate (2), the L-shaped limiting arm plate (3) and the L-shaped elastic hook (4) are an integral structure formed by injection molding, and the thickness of the L-shaped elastic hook (4) is evenly set.

7. The air conditioner indoor unit wiring harness fixing structure according to claim 6, characterized in that: The L-shaped elastic hook (4) comprises an L-shaped hook body with a thickness of 1.8 mm to 2 mm, and rib plates (11) are integrally formed on the front and rear sides of the back of the L-shaped hook body.

8. The air conditioner indoor unit wiring harness fixing structure according to any one of claims 1 to 7, characterized in that: At least one surface of the front and rear sides of the transverse limiting portion is provided with a boss (12) at the right end.

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