Air conditioner indoor unit and wire harness fixing device thereof

By designing a wiring harness fixing device in the indoor unit of the air conditioner, and utilizing the fixing structure of the air duct and electrical box, as well as the wire channel, the problems of connection difficulties and shortened lifespan caused by messy wiring harnesses are solved. This achieves clear and corresponding terminal connections and physical isolation, improving operational efficiency and equipment stability.

CN224502798UActive Publication Date: 2026-07-14QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Filing Date
2025-07-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The current indoor units of air conditioners have multiple wire harnesses that are arranged in a messy manner, which leads to problems such as difficult terminal connection, interference, and shortened service life.

Method used

Design a wiring harness fixing device for an indoor air conditioner unit, including a first fixing structure on the air duct and an electrical box. By setting multiple spaced fixing holes and guide bevels, different types of terminals are fixed respectively, and the terminals are electrically connected to the electrical box through the wire groove, so as to achieve clear correspondence and physical isolation of the terminals.

Benefits of technology

It improves the convenience and efficiency of terminal connection, avoids the quality risks caused by terminal stacking, extends the service life of the structure, reduces electromagnetic signal interference, and enhances the stability and aesthetics of equipment operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224502798U_ABST
    Figure CN224502798U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of air conditioner provides an air conditioner indoor unit and wire harness fixing device, wire harness fixing device, include: the air ring, the air ring is equipped with first fixed structure, the first fixed structure includes a plurality of interval arrangement's fixed hole, the electric appliance box is set up on the air ring, and the terminal of a plurality of first wire harnesses leading out from the electric appliance box is fixed in the fixed hole, and each fixed hole corresponds and fixes an end, the utility model can solve the defect that the terminal connection of a plurality of wire harnesses disorderly discharges leads to difficult, the interference between wire harnesses, realizes the terminal fixed respectively to a plurality of wire harnesses, promotes the aesthetic property while, provides the convenience for the terminal connection, reduces the connection difficulty, and avoids the quality hidden danger caused by the stacking of a plurality of terminals.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air conditioning indoor unit and its wiring harness fixing device. Background Technology

[0002] Currently, multiple wire harnesses with different functions inside the embedded machine are placed directly on the air duct ring. The wire harnesses are arranged and stacked in a messy manner, which not only affects the aesthetics, but also causes problems such as difficulty in connecting terminals and interference between wire harnesses.

[0003] For wiring harnesses with female terminals extending from the electrical box, the intertwined arrangement of the wires can lead to confusion in the correspondence between these female terminals and the sub-terminals on the panel. This necessitates meticulous identification of each sub-terminal against multiple female terminals for accurate connection, resulting in cumbersome and labor-intensive operation. Furthermore, stacking multiple terminals can cause stress on the terminals, affecting their lifespan. Utility Model Content

[0004] This utility model provides an indoor air conditioner unit and its wiring harness fixing device to solve the defects of the prior art, which are difficult to connect between terminals and cause interference between wiring harnesses due to the messy arrangement of multiple wiring harnesses. It realizes the separate fixing of the terminals of multiple wiring harnesses, improves the aesthetics, facilitates the connection of terminals, reduces the connection difficulty, and avoids the quality hazards caused by the stacking of multiple terminals.

[0005] This utility model provides a wiring harness fixing device for an air conditioner indoor unit, comprising:

[0006] An air-guiding ring, wherein the air-guiding ring is provided with a first fixing structure, the first fixing structure including a plurality of fixing holes arranged at intervals;

[0007] An electrical box is mounted on the air intake ring, and the terminals of multiple first wire harnesses extending from the electrical box are fixed in the fixing holes, with each fixing hole corresponding to one terminal.

[0008] According to the present invention, a wiring harness fixing device for an indoor air conditioning unit is provided, wherein multiple fixing holes are provided with different shapes or sizes or at different heights, so as to fix different types of terminals respectively.

[0009] Alternatively, each of the multiple fixing holes may have a marking portion on its outer periphery, and different types of terminals may be matched with the corresponding fixing holes according to the marking portion.

[0010] According to the present invention, a wiring harness fixing device for an indoor air conditioner unit is provided. The first fixing structure includes a mounting plate, on which a plurality of fixing holes are provided in parallel. A guide bevel is provided on the bottom side of the fixing holes facing the electrical box.

[0011] According to the present invention, a wiring harness fixing device for an indoor air conditioning unit is provided, wherein the guide bevel and the bottom wall of the fixing hole are connected by a rounded corner.

[0012] According to the present invention, a wiring harness fixing device for an indoor air conditioning unit is provided, wherein the air duct is provided with a second fixing structure, and the second fixing structure and the first fixing structure are located on the same side of the air duct.

[0013] The second fixing structure includes a wire channel, through which the second wire harness is electrically connected to the electrical box.

[0014] According to the present invention, an air conditioner indoor unit wiring harness fixing device is provided, wherein a wiring port is provided on one side of the wiring channel to avoid the surface of the air duct ring, and the second wiring harness enters the wiring channel through the wiring port.

[0015] According to the present invention, a wiring harness fixing device for an indoor air conditioning unit is provided, wherein the inner wall of the inlet of the wiring trough is provided with a guide slope.

[0016] According to the present invention, a wiring harness fixing device for an indoor air conditioning unit is provided, wherein the horizontally extending inner wall and the vertically extending inner wall of the wire channel are transitioned by rounded corners.

[0017] According to the present invention, a wiring harness fixing device for an indoor air conditioning unit is provided, wherein the air duct ring is provided with a second fixing structure, the second fixing structure includes a wire passage groove, the lower end of the mounting plate is recessed and surrounds the surface of the air duct ring to form the wire passage groove, and the fixing hole is provided above the wire passage groove.

[0018] This utility model also provides an indoor air conditioning unit, including the above-mentioned wiring harness fixing device.

[0019] The air conditioner indoor unit and its wiring harness fixing device provided by this utility model, by setting a first fixing structure, includes multiple fixing holes arranged at intervals. The multiple fixing holes provide limiting installation for multiple terminals of multiple first wiring harnesses, which can fix multiple terminals. In this way, when other terminals on the panel are connected to these multiple terminals, it is easy to see and connect them one by one, saving the time of finding the wires, thereby improving the efficiency and convenience of operation. Moreover, the multiple terminals are fixed separately and isolated, which can avoid the quality problems caused by the stacking of multiple terminals and extend the service life of the structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is one of the structural schematic diagrams of the air intake ring provided by this utility model;

[0022] Figure 2 This is the second schematic diagram of the structure of the air intake ring provided by this utility model;

[0023] Figure 3 This is a schematic diagram of the arrangement of the first and second wire harnesses provided by this utility model.

[0024] Figure label:

[0025] 10. Air intake ring; 11. Fixing hole; 111. Guide bevel; 12. Electrical box; 13. First wire harness; 131. Terminal; 14. Mounting plate; 141. Reinforcing rib; 15. Wire passage groove; 151. Guide bevel; 152. Rounded corner; 16. Second wire harness; 17. Wire passage opening; 18. Cable routing channel. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] like Figures 1 to 3 As shown, this utility model provides a wiring harness fixing device for an air conditioner indoor unit, comprising:

[0031] The air-guiding ring 10 is provided with a first fixing structure, which includes a plurality of fixing holes 11 arranged at intervals.

[0032] An electrical box 12 is mounted on the air intake ring 10. The terminals 131 of a plurality of first wire harnesses 13 extending from the electrical box 12 are fixed in the fixing holes 11, with each fixing hole 11 corresponding to a fixed terminal 131.

[0033] Specifically, such as Figure 3 As shown, multiple first wire harnesses 13 extending from the electrical box 12 are equipped with terminals 131. By fixing these terminals 131 one by one, multiple terminals 131 can be positioned, solving the problem of wire harness tangling in traditional technology. This makes the wiring neat and orderly, which not only facilitates the connection of other terminals on the panel to these terminals 131, reducing the difficulty of docking, avoiding incorrect connections, saving connection time and improving efficiency, but also prevents deformation or poor contact caused by squeezing when the wire harnesses are stacked, extending the service life of the terminals 131. Moreover, the fixed wire harness layout is clear, and the problem terminal 131 can be quickly located during fault diagnosis, shortening the repair time.

[0034] Multiple first wiring harnesses 13 have different functions, and the corresponding multiple terminals 131 also include various types to achieve different functions. Terminals 131 are used to realize circuit conduction or signal transmission, and may include power terminals 131, signal terminals 131, multi-function terminals 131, etc., so as to realize functions such as power supply, panel display control, and remote control control through the corresponding first wiring harnesses 13, according to different air conditioner configurations.

[0035] The air conditioner indoor unit and its wiring harness fixing device provided by this utility model, by setting a first fixing structure, includes a plurality of fixing holes 11 arranged at intervals. The plurality of fixing holes 11 provide limiting installation for the plurality of terminals 131 of the plurality of first wiring harnesses 13, which can fix the plurality of terminals 131. In this way, when other terminals 131 on the panel are connected to the plurality of terminals 131, they can be clearly identified and connected one by one, saving the time of finding the wires, thereby improving the efficiency and convenience of operation. Moreover, the plurality of terminals 131 are fixed separately and isolated, which can avoid the quality problems caused by the stacking of the plurality of terminals 131 and extend the service life of the structure.

[0036] In order to achieve rapid installation of multiple terminals 131, or to clarify the correspondence between multiple terminals 131 and mating terminals, so as to further reduce the difficulty of docking and improve efficiency, a correspondence between multiple terminals 131 and multiple fixing holes 11 can be established.

[0037] In some embodiments, the multiple fixing holes 11 can be configured in different shapes so that multiple different types of terminals 131 can be installed according to a predetermined correspondence. For example, the first terminal 131 is installed in a circular fixing hole 11, the second terminal 131 is installed in a square fixing hole 11, the third terminal 131 is installed in a hexagonal fixing hole 11, etc., so that the installation position of each terminal 131 is clearly defined, reducing the wiring harness arrangement time and improving efficiency.

[0038] Alternatively, multiple fixing holes 11 can be set to different sizes, and multiple terminals 131 can also be set to different sizes, so that each terminal 131 can only be installed in the fixing hole 11 of the corresponding size, clarifying the correspondence, preventing incorrect installation, improving efficiency, and facilitating the quick location of a certain type of terminal 131 during subsequent maintenance.

[0039] Alternatively, multiple fixing holes 11 can be set at different heights. After installing multiple terminals 131, a certain type of terminal 131 can be quickly found according to the height difference. This also facilitates staggered isolation between multiple terminals 131, improving the isolation effect.

[0040] In other embodiments, each of the multiple fixing holes 11 is provided with a marking portion on its outer periphery, which indicates the type of terminal 131 that can be corresponding. When multiple terminals 131 are installed, they can be located and fixed according to their respective markings, which can achieve quick installation and facilitates quick positioning of a certain type of terminal 131 during subsequent maintenance.

[0041] In a preferred embodiment of the present invention, the first fixing structure includes a mounting plate 14, on which a plurality of fixing holes 11 are provided in parallel, and a guide bevel 111 is provided at the bottom of the side of the fixing hole 11 facing the electrical box 12.

[0042] like Figure 1 or Figure 2 As shown, the mounting plate 14 is located on one side adjacent to the electrical box 12, and a corresponding number of fixing holes 11 are provided according to the number of terminals 131. Figure 1 or Figure 2 Three fixing holes 11 are provided in the middle, which can be adjusted as needed according to the actual situation. For example Figure 2 As shown, by setting the guide bevel 111, the terminal 131 can slide along the guide bevel 111 into the fixing hole 11, which can ensure smooth installation and improve installation efficiency. The guide bevel 111 extends upward from bottom to top towards the fixing hole 11, and plays a guiding role.

[0043] Furthermore, the guide bevel 111 and the bottom wall of the fixing hole 11 are connected by a rounded corner.

[0044] By setting rounded corners, a smooth transition can be formed on the moving path of terminal 131, avoiding sharp corners at the transition position from causing wear to terminal 131 and protecting the structure of terminal 131.

[0045] The shape of the fixing hole 11 is adapted to the shape of the terminal 131, such as Figure 1 or Figure 2 A square fixing hole 11 is used, which allows for better fitting with the square-shaped terminal 131. The vertical height of the fixing hole 11 can be slightly less than the height of the terminal 131, allowing the terminal 131 to be pressed into and securely locked within the fixing hole 11. The horizontal width of the fixing hole 11 is close to the width of the terminal 131, which helps to stabilize the terminal 131 during connection. Figure 1 As shown, the mounting plate 14 is provided with reinforcing ribs 141 between adjacent fixing holes 11, which can improve the structural strength of the mounting plate 14, enable the fixing holes 11 to withstand the mechanical stress of the wire harness, and reduce the risk of loosening caused by vibration or movement.

[0046] In a preferred embodiment of the present invention, the air intake ring 10 is provided with a second fixing structure, which is located on the same side of the air intake ring 10 as the first fixing structure; the second fixing structure includes a wire passage groove 15, through which the second wire harness 16 is electrically connected to the electrical box 12.

[0047] It is understandable that air conditioners typically contain multiple functional modules, and the haphazard arrangement of multiple wiring harnesses within these modules is a problem that needs to be addressed. This application, by setting a second fixing structure, enables the orderly arrangement of the second wiring harness 16, similar to the wiring harnesses in the functional modules, while simultaneously separating the second wiring harness 16 from the first wiring harness 13, reducing electromagnetic crosstalk and improving equipment operational stability. By setting a wire guide groove 15, the second wiring harness 16 can be inserted into the wire guide groove 15, thereby limiting the routing path of the second wiring harness 16 and achieving physical isolation from the first wiring harness 13.

[0048] In some embodiments, the wire channel 15 is provided with a wire passage 17 on one side to avoid the surface of the air guide ring 10, and the second wire harness 16 enters the wire channel 15 through the wire passage 17.

[0049] like Figure 1 As shown, by providing the wire passage opening 17, the second wire harness 16 can easily enter the wire passage groove 15 from the side through the wire passage opening 17, avoiding the difficulty and inconvenience of directly threading the second wire harness 16 into the wire passage groove 15. The height of the wire passage opening 17 is preferably less than the diameter of the second wire harness 16, allowing the second wire harness 16 to deform and pass through the wire passage opening 17 into the wire passage groove 15, while ensuring that the second wire harness 16 will not come out of the wire passage opening 17.

[0050] Furthermore, the inner wall at the entrance of the cable tray 15 is provided with a guide slope 151.

[0051] like Figure 2 As shown, after the second wire harness 16 enters the wire groove 15 through the wire passage 17, it can first slide along the guide slope 151, which helps to guide the second wire harness 16 to move inward and ensures smooth installation.

[0052] In some embodiments, the laterally extending inner wall and the vertically extending inner wall of the cable tray 15 are transitioned by a fillet 152.

[0053] like Figure 2 As shown, by setting the rounded corner 152, it is beneficial for the wire harness to smoothly transition from the inner top wall to the side wall along the wire groove 15, reducing wire wear. Moreover, when there is more than one second wire harness 16, some of the second wire harness 16 can fit more closely at the rounded corner 152, improving the fit.

[0054] It is understood that the number of second wiring harnesses 16 in this application is not one, but one or more, and may include wiring harnesses for WIFI function modules, temperature sensors or other types of sensors, depending on the actual module type.

[0055] In some embodiments, the air guide ring 10 is provided with a second fixing structure, the second fixing structure including a wire passage groove 15, the lower end of the mounting plate 14 is recessed and surrounds the surface of the air guide ring 10 to form the wire passage groove 15, and the fixing hole 11 is provided above the wire passage groove 15.

[0056] like Figure 1As shown, a wiring channel 15 is provided, which can be integrated with the fixing hole 11 on the same structure. The wiring channel 15 is used to arrange the second wire harness 16, and the fixing hole 11 is used to fix the terminal 131 of the first wire harness 13. The first wire harness 13 and the second wire harness 16 are both low-voltage wires. By setting them on the same side of the air intake ring 10, it is beneficial to connect them to the corresponding low-voltage area in the electrical box 12. Since the space on the annular surface of the air intake ring 10 is limited, under the premise that the first wire harness 13 and the second wire harness 16 are arranged on the same side, in order to achieve the orderly arrangement of the first wire harness 13 and the second wire harness 16 while forming isolation, the wiring channel 15 and the fixing hole 11 can be integrated on the same mounting plate 14 to reduce space occupation and improve space utilization.

[0057] The wire channel 15 is located on one side edge of the mounting plate 14, which facilitates the installation of the wire passage 17 and simplifies the installation of the second wire harness 16. Since the wire channel 15 is located at the lower end of the mounting plate 14, it does not affect the space utilization at the upper end of the mounting plate 14. Fixing holes 11 can be opened at the upper end of the mounting plate 14 to improve space utilization.

[0058] In some embodiments, such as Figure 2 As shown, a wiring channel 18 is provided between the electrical box 12 and the mounting plate 14. After passing through the wiring channel 18, the first wire harness 13 and the second wire harness 16 cooperate with the fixing hole 11 and the wire groove 15, which can enhance the neat and orderly arrangement of the first wire harness 13 and the second wire harness 16 and improve the aesthetics.

[0059] like Figure 3 As shown, the electrical box 12 contains a circuit board, which includes a high-voltage area and a low-voltage area. The first wire harness 13 and the second wire harness 16 are located on the same side of the air intake ring 10 and are positioned corresponding to the low-voltage area. On the other side of the air intake ring 10, there is a high-voltage wire harness, which is positioned corresponding to the high-voltage area. By partitioning the circuit, mutual interference between high-voltage and low-voltage circuits can be reduced, the stability of signal transmission can be improved, and safety can be enhanced. It also facilitates the rapid location of faulty circuits during maintenance. When repairing high-voltage circuits, there is no need to worry about accidentally touching low-voltage parts, reducing operational risks. It can also prevent the heat (which generates a lot of heat) of the high-voltage cables from affecting the low-voltage cables, accelerating the aging of the insulation layer of the low-voltage cables, and extending the cable life.

[0060] This utility model also provides an air conditioner indoor unit, including the above-mentioned wiring harness fixing device. The air conditioner indoor unit of this application has all the beneficial effects of the above-mentioned embodiments and examples, which will not be repeated here.

[0061] The air conditioner indoor unit and its wiring harness fixing device provided by this utility model, by setting a first fixing structure, includes a plurality of fixing holes 11 arranged at intervals. The plurality of fixing holes 11 provide limiting installation for the plurality of terminals 131 of the plurality of first wiring harnesses 13, which can fix the plurality of terminals 131. In this way, when other terminals 131 on the panel are connected to the plurality of terminals 131, they can be clearly identified and connected one by one, saving the time of finding the wires, thereby improving the efficiency and convenience of operation. Moreover, the plurality of terminals 131 are fixed separately and isolated, which can avoid the quality problems caused by the stacking of the plurality of terminals 131 and extend the service life of the structure.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wiring harness fixing device for an air conditioner indoor unit, characterized in that, include: The air guide ring (10) is provided with a first fixing structure, which includes a plurality of fixing holes (11) arranged at intervals. An electrical box (12) is set on the air intake ring (10). The terminals (131) of a plurality of first wire harnesses (13) leading out from the electrical box (12) are fixed in the fixing holes (11), and each fixing hole (11) corresponds to fixing one terminal (131).

2. The wiring harness fixing device for an air conditioner indoor unit according to claim 1, characterized in that, The multiple fixing holes (11) are provided with different shapes or sizes or at different heights, so as to fix different types of terminals (131) respectively. Alternatively, each of the multiple fixing holes (11) may have an identification portion on its outer periphery, and different types of terminals (131) may be matched with the corresponding fixing holes (11) according to the identification portion.

3. The wiring harness fixing device for an air conditioner indoor unit according to claim 1, characterized in that, The first fixing structure includes a mounting plate (14), on which a plurality of fixing holes (11) are provided in parallel, and a guide bevel (111) is provided at the bottom of the side of the fixing hole (11) facing the electrical box (12).

4. The wiring harness fixing device for an air conditioner indoor unit according to claim 3, characterized in that, The guide bevel (111) and the bottom wall of the fixing hole (11) are connected by a rounded corner.

5. The wiring harness fixing device for an air conditioner indoor unit according to claim 1, characterized in that, The air intake ring (10) is provided with a second fixing structure, which is located on the same side of the air intake ring (10) as the first fixing structure. The second fixing structure includes a wire channel (15), through which the second wire harness (16) is electrically connected to the electrical box (12).

6. The wiring harness fixing device for an air conditioner indoor unit according to claim 5, characterized in that, The wire passage (15) has a wire passage opening (17) on one side to avoid the surface of the air guide ring (10), and the second wire bundle (16) enters the wire passage (15) through the wire passage opening (17).

7. The wiring harness fixing device for an air conditioner indoor unit according to claim 6, characterized in that, The inner wall at the entrance of the cable tray (15) is provided with a guide slope (151).

8. The wiring harness fixing device for an air conditioner indoor unit according to any one of claims 5-7, characterized in that, The transversely extending inner wall and the vertically extending inner wall of the cable groove (15) are transitioned by a rounded corner (152).

9. The wiring harness fixing device for an air conditioner indoor unit according to claim 3, characterized in that, The air guide ring (10) is provided with a second fixing structure, the second fixing structure includes a wire groove (15), the lower end of the mounting plate (14) is recessed and surrounds the surface of the air guide ring (10) to form the wire groove (15), and the fixing hole (11) is provided above the wire groove (15).

10. An indoor unit for an air conditioner, characterized in that, Includes the wiring harness fixing device for an indoor air conditioning unit as described in any one of claims 1-9.