Heat-resistant waterproof integrated wire harness for air conditioner

Abstract

The utility model relates to the technical field of integrated wire harnesses, in particular to a heat-resistant waterproof integrated wire harness for an air conditioner. The integrated wire harness mainly aims at solving the problems that an existing integrated wire harness for an air conditioner is difficult to give consideration to both heat resistance and water resistance, is easy to age and deform in a high-temperature environment to cause reduction of insulation performance, is easy to erode by water in a humid environment to reduce service life, and is not ideal in comprehensive protection effect of partially improved wire harnesses. According to the technical scheme, the wire harness comprises multiple sets of wire harness bodies, each wire harness body comprises multiple sets of wire cores, the outer sides of the multiple sets of wire harness bodies are wrapped with inner insulating layers respectively, heat-resisting layers are arranged on the outer sides of the multiple sets of inner insulating layers, filling layers are arranged in gaps between the inner insulating layers and the heat-resisting layers, and the outer sides of the heat-resisting layers are wrapped with waterproof layers. And an outer insulating layer is arranged on the outer side of the waterproof layer. According to the utility model, the working stability and the service life of the wire harness in a complex environment can be improved, reliable connection and good sealing are ensured, and safe and normal operation of an air conditioner is ensured.

Description

Technical Field

[0001] This utility model relates to the field of integrated wire harness technology, and in particular to a heat-resistant and waterproof integrated wire harness for air conditioning. Background Technology

[0002] With the improvement of people's living standards, air conditioners have become an indispensable electrical appliance in daily life. During the operation of an air conditioner, the integrated wiring harness plays a crucial role, responsible for transmitting power and signals to ensure the normal operation of all components. However, existing integrated wiring harnesses for air conditioners still have some shortcomings in their use.

[0003] On the one hand, air conditioners generate heat during operation, especially when working for extended periods in high-temperature environments, where the integrated wiring harness is located. Ordinary wiring harness materials are prone to aging and deformation at high temperatures, leading to decreased insulation performance and even safety issues such as short circuits. On the other hand, in certain environments, such as humid locations or where condensation exists inside the air conditioner, the wiring harness is susceptible to moisture corrosion. Moisture can damage the insulation layer of the wiring harness, accelerate the corrosion of the metal wires, reduce the lifespan of the wiring harness, and in severe cases, affect the normal operation of the air conditioner.

[0004] While some wire harnesses on the market employ certain heat-resistant or waterproof measures, they often fail to achieve both simultaneously, or the results are less than ideal. For example, some wire harnesses improve heat resistance simply by increasing the thickness of the insulation layer, but offer limited improvement in waterproof performance; conversely, some waterproof wire harnesses perform poorly in terms of heat resistance. Therefore, this utility model proposes a heat-resistant and waterproof integrated wire harness for air conditioning. Utility Model Content

[0005] The purpose of this invention is to address the problems in the prior art where existing integrated wiring harnesses for air conditioners cannot simultaneously achieve both heat resistance and waterproof performance, are prone to aging and deformation in high-temperature environments leading to decreased insulation performance, are susceptible to moisture erosion in humid environments reducing their service life, and the overall protective effect of some improved wiring harnesses is not ideal. The invention proposes a heat-resistant and waterproof integrated wiring harness for air conditioners.

[0006] The technical solution of this utility model is as follows: A heat-resistant and waterproof integrated wiring harness for air conditioners includes multiple sets of wiring harness bodies, each wiring harness body including multiple sets of conductor cores. Each set of wiring harness bodies is wrapped with an inner insulation layer, and a heat-resistant layer is disposed on the outer side of each set of inner insulation layers. A filling layer is disposed in the gap between the inner insulation layer and the heat-resistant layer. A waterproof layer is wrapped on the outer side of the heat-resistant layer, and an outer insulation layer is disposed on the outer side of the waterproof layer. A male connector and a female connector are disposed at the connection ends of two adjacent sets of wiring harness bodies, respectively mounted on the two sets of wiring harness bodies. A sealing component is mounted on the male connector and the female connector, the sealing component being used to connect the male connector and the female connector while ensuring a seal.

[0007] Optionally, the male connector includes a first connecting cylinder fixedly connected to one end of the wire harness body. A plug is installed at the end of the first connecting cylinder away from the wire harness body. A mating groove is provided in the plug, and multiple sets of connecting pins are fixedly connected in the mating groove. The multiple sets of connecting pins are electrically connected to multiple sets of wire cores respectively.

[0008] Optionally, a locking block is fixedly connected to the inner side of the mating groove.

[0009] Optionally, the female connector includes a second connecting cylinder fixedly connected to one end of the wire harness body. The second connecting cylinder has a slot, and a mating block is fixedly connected to the slot. The mating block has multiple sets of connecting holes corresponding to the connector and a slot corresponding to the locking block.

[0010] Optionally, the sealing assembly includes a fixing ring fixedly connected to the outer ring of the second connecting cylinder, a threaded sleeve slidably sleeved on the outer ring of the fixing ring, a pressure ring fixedly connected to the inner ring of the threaded sleeve on the side of the fixing ring away from the male connector, the pressure ring slidably sleeved on the outer ring of the second connecting cylinder, a first rubber ring between the pressure ring and the fixing ring, and a limit ring on the side of the pressure ring away from the fixing ring, the limit ring being fixedly connected to the outer ring of the second connecting cylinder.

[0011] Optionally, the sealing assembly further includes a positioning ring fixedly connected to the outer ring of the first connecting cylinder. The positioning ring has a threaded groove on the side near the connecting female head. The threaded sleeve is threadedly connected to the threaded groove, and a second rubber ring is provided in the threaded groove.

[0012] Optionally, the fixing ring is fixedly connected to multiple sets of limiting blocks on the side near the male connector, and the positioning ring is provided with multiple sets of limiting grooves corresponding to the limiting blocks on the side near the female connector.

[0013] Optionally, the inner insulation layer is made of polyvinyl chloride, the heat-resistant layer is a ceramic fiber braided layer, the waterproof layer is a butyl rubber layer, and the outer insulation layer is made of cross-linked polyethylene.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This utility model features a multi-layered structure design for the main body of the wire harness, consisting of, from the inside out, conductor cores, inner insulation layer, heat-resistant layer, waterproof layer, and outer insulation layer. The polyvinyl chloride inner insulation layer ensures insulation between conductor cores, the ceramic fiber braided heat-resistant layer can withstand high temperatures, the butyl rubber waterproof layer prevents moisture penetration, and the cross-linked polyethylene outer insulation layer further enhances insulation and durability. The synergistic effect of each layer greatly improves the working stability of the wire harness in complex environments and extends its service life.

[0016] Furthermore, through the design of connecting male and female connectors, and the cooperation of components such as plugs, slots, connecting pins, and connecting holes, a quick electrical connection is achieved. The setting of the locking block and slot, and the limit block and limit slot, ensures that no rotation occurs after connection, thus guaranteeing connection stability. The sealing component, through the cooperation of components such as threaded sleeves, fixing rings, and pressure rings, squeezes the rubber ring to achieve a good seal at the connection point, preventing moisture intrusion and improving the safety and reliability of the wire harness.

[0017] In summary, this utility model can improve the working stability and service life of the wiring harness in complex environments, ensure reliable connection and good sealing, and guarantee the safe and normal operation of the air conditioner. Attached Figure Description

[0018] Figure 1 A schematic diagram of a heat-resistant and waterproof integrated wiring harness for air conditioning is provided.

[0019] Figure 2 This is a cross-sectional structural diagram of the sealing assembly;

[0020] Figure 3 This is a schematic diagram of the male connector structure;

[0021] Figure 4 This is a schematic diagram of the connection of the female connector;

[0022] Figure 5 yes Figure 1 Enlarged diagram of point A in the middle.

[0023] Figure label:

[0024] 1. Wire harness body; 11. Conductor core; 12. Inner insulation layer; 13. Heat-resistant layer; 14. Filler layer; 15. Waterproof layer; 16. Outer insulation layer;

[0025] 2. Male connector; 21. First connecting sleeve; 22. Insert block; 23. Mating groove; 24. Connecting pin; 25. Locking block;

[0026] 3. Connecting female head; 31. Second connecting cylinder; 32. Slot; 33. Mating block; 34. Connecting hole; 35. Slot;

[0027] 4. Sealing assembly; 41. Retaining ring; 42. Threaded sleeve; 43. Pressure ring; 44. First rubber ring; 45. Limiting ring; 46. Positioning ring; 47. Threaded groove; 48. Second rubber ring;

[0028] 5. Limiting block; 51. Limiting groove. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of 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 to illustrate selected embodiments of the invention.

[0031] 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.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example

[0035] like Figure 1 and Figure 5 As shown, this utility model proposes a heat-resistant and waterproof integrated wiring harness for air conditioners, comprising multiple harness bodies 1. Each harness body 1 includes five sets of conductor cores 11. Each of the five harness bodies 1 is wrapped with an inner insulation layer 12. The inner insulation layer 12 is made of polyvinyl chloride (PVC) material, possessing excellent insulation properties and effectively preventing short circuits between the conductor cores 11. A heat-resistant layer 13 is provided on the outer side of each of the five inner insulation layers 12. The heat-resistant layer 13 is a ceramic fiber braided layer. Ceramic fibers have excellent high-temperature resistance, can withstand high-temperature environments, and protect the conductor cores 11 and the inner insulation layer 12 from high temperatures. Simultaneously, the ceramic fiber braided layer also possesses a certain degree of flexibility, ensuring the wiring harness's bending performance. A filling layer 14 is provided in the gap between the inner insulation layer 12 and the heat-resistant layer 13, ensuring structural stability. The heat-resistant layer 13 is wrapped with a waterproof layer 15, which is a butyl rubber layer. Butyl rubber has excellent waterproof performance and can prevent moisture from penetrating into the wire harness, thus providing waterproof protection for the internal conductor core 11, inner insulation layer 12, and heat-resistant layer 13. An outer insulation layer 16 is provided outside the waterproof layer 15. The outer insulation layer 16 is made of cross-linked polyethylene material. Cross-linked polyethylene has high insulation strength and good resistance to environmental stress cracking, further improving the overall insulation performance and durability of the wire harness.

[0036] For details, please refer to Figure 2 , Figure 3 and Figure 4 The aforementioned integrated wire harness includes a male connector 2 and a female connector 3 disposed at the connection ends of two adjacent wire harness bodies 1. The male connector 2 and the female connector 3 are respectively installed on the two wire harness bodies 1 to facilitate quick connection of the two wire harness bodies 1. The male connector 2 includes a first connecting cylinder 21 fixedly connected to one end of the wire harness body 1. A plug block 22 is installed at the end of the first connecting cylinder 21 away from the wire harness body 1. A mating groove 23 is provided in the plug block 22. Multiple sets of connecting pins 24 are fixedly connected in the mating groove 23. The multiple sets of connecting pins 24 are electrically connected to multiple sets of wire cores 11 respectively. A locking block 25 is fixedly connected inside the mating groove 23.

[0037] Furthermore, the aforementioned integrated wire harness also includes a connecting female connector 3 comprising a second connecting cylinder 31 fixedly connected to one end of the wire harness body 1. The second connecting cylinder 31 has a slot 32 for inserting the insertion block 22 into the slot 32. A mating block 33 is fixedly connected to the slot 32. The mating block 33 has multiple sets of connecting holes 34 corresponding to the connecting pins 24, facilitating the insertion of the connecting pins 24 into the connecting holes 34 to achieve electrical connection between the two wire harness bodies 1. The mating block 33 has a slot 35 corresponding to the locking block 25 for guiding and limiting, preventing rotation after the connecting male connector 2 and the connecting female connector 3 are connected, and ensuring the stability of the connection of the connecting pins 24.

[0038] Finally, the aforementioned integrated wiring harness includes a sealing assembly 4 installed on the male connector 2 and the female connector 3. The sealing assembly 4 connects the male connector 2 and the female connector 3 while ensuring a tight seal. The sealing assembly 4 includes a fixing ring 41 fixedly connected to the outer ring of the second connecting cylinder 31. A threaded sleeve 42 is slidably fitted onto the outer ring of the fixing ring 41 to ensure the stability of the threaded sleeve 42 during movement. A pressure ring 43 is fixedly connected to the inner ring of the threaded sleeve 42 on the side of the fixing ring 41 away from the male connector 2. The pressure ring 43 is slidably fitted onto the outer ring of the second connecting cylinder 31, and moves synchronously with the threaded sleeve 42. A first rubber ring 44 is provided between the pressure ring 43 and the fixing ring 41. The pressure ring 43 cooperates with the fixing ring 41 to compress the first rubber ring 44 to improve the sealing performance. A limit ring 45 is provided on the side of the pressure ring 43 away from the fixing ring 41. The limit ring 45 is fixedly connected to the outer ring of the second connecting cylinder 31 to prevent the threaded sleeve 42 from disengaging from the second connecting cylinder 31. The sealing assembly 4 also includes a positioning ring 46 fixedly connected to the outer ring of the first connecting cylinder 21. The positioning ring 46 has a threaded groove 47 on the side near the connecting female head 3. The threaded sleeve 42 is threadedly connected to the threaded groove 47, so that when the threaded sleeve 42 is rotated, one end of the threaded sleeve 42 is threaded into the threaded groove 47, thereby locking the connecting male head 2 and the connecting female head 3 together. A second rubber ring 48 is provided in the threaded groove 47 to increase the sealing performance.

[0039] The fixing ring 41 is fixedly connected to multiple sets of limiting blocks 5 on the side near the male connector 2, and the positioning ring 46 is provided with multiple sets of limiting grooves 51 corresponding to the limiting blocks 5 on the side near the female connector 3. By setting the limiting blocks 5 and the limiting grooves 51, the male connector 2 and the female connector 3 are prevented from rotating, thereby reducing the torque effect on the locking block 25.

[0040] In this embodiment, when connecting the two sets of wire harness bodies 1, the plug 22 of the male connector 2 is aligned with the slot 32 of the female connector 3, and the plug 22 is slowly inserted into the slot 32. During this process, the locking block 25 on the plug 22 of the male connector 2 is guided and inserted along the locking groove 35 on the mating block 33 of the female connector 3, initially positioning the male connector 2 and the female connector 3 to prevent rotation after connection.

[0041] As the insert block 22 is inserted into the slot 32, the connecting pin 24 in the mating slot 23 of the male connector 2 is inserted into the corresponding connecting hole 34 on the mating block 33 of the female connector 3, thereby realizing the electrical connection between the two sets of wire harness bodies 1.

[0042] In the sealing assembly 4, the threaded sleeve 42 is slidably fitted onto the outer ring of the fixing ring 41, which is fixed to the outer ring of the second connecting cylinder 31. After the male connector 2 and the female connector 3 are initially aligned, the threaded groove 47 on the positioning ring 46 aligns with the threaded sleeve 42. The threaded sleeve 42 is rotated to move towards the positioning ring 46. The threaded sleeve 42 drives the pressure ring 43 to move synchronously, and the pressure ring 43 squeezes the first rubber ring 44, improving the sealing performance at the connection between the male connector 2 and the female connector 3. When the threaded sleeve 42 is screwed into the threaded groove 47 of the positioning ring 46, the second rubber ring 48 further enhances the sealing effect and locks the male connector 2 and the female connector 3. The limiting block 5 on the fixing ring 41 is embedded in the limiting groove 51 on the positioning ring 46, further preventing the male connector 2 and the female connector 3 from rotating, reducing the torque effect on the locking block 25, and ensuring the stability of the connection.

[0043] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A heat-resistant and waterproof integrated wiring harness for air conditioners, characterized in that, include: Multiple sets of wire harness bodies (1), each wire harness body (1) includes multiple sets of conductor cores (11), each set of wire harness bodies (1) is wrapped with an inner insulation layer (12), each set of inner insulation layers (12) is provided with a heat-resistant layer (13) on the outside, a filling layer (14) is provided in the gap between the inner insulation layer (12) and the heat-resistant layer (13), a waterproof layer (15) is wrapped on the outside of the heat-resistant layer (13), and an outer insulation layer (16) is provided on the outside of the waterproof layer (15). The male connector (2) and female connector (3) are provided at the connection ends of the two adjacent groups of wire harness bodies (1), and the male connector (2) and female connector (3) are respectively installed on the two groups of wire harness bodies (1); A sealing assembly (4) is installed on the male connector (2) and the female connector (3), the sealing assembly (4) being used to connect the male connector (2) and the female connector (3).

2. The heat-resistant and waterproof integrated wiring harness for air conditioning according to claim 1, characterized in that, The male connector (2) includes a first connecting tube (21) fixedly connected to one end of the wire harness body (1). A plug (22) is installed at the end of the first connecting tube (21) away from the wire harness body (1). A mating groove (23) is provided in the plug (22). Multiple sets of connecting pins (24) are fixedly connected in the mating groove (23). The multiple sets of connecting pins (24) are electrically connected to multiple sets of wire cores (11).

3. The heat-resistant and waterproof integrated wiring harness for air conditioning according to claim 2, characterized in that, A locking block (25) is fixedly connected to the inner side of the mating groove (23).

4. The heat-resistant and waterproof integrated wiring harness for air conditioning according to claim 3, characterized in that, The female connector (3) includes a second connecting tube (31) fixedly connected to one end of the wire harness body (1). The second connecting tube (31) has a slot (32) and a mating block (33) fixedly connected to the slot (32). The mating block (33) has multiple sets of connecting holes (34) corresponding to the connecting pin (24) and a slot (35) corresponding to the locking block (25).

5. The heat-resistant and waterproof integrated wiring harness for air conditioning according to claim 4, characterized in that, The sealing assembly (4) includes a fixing ring (41) fixedly connected to the outer ring of the second connecting cylinder (31). A threaded sleeve (42) is slidably sleeved on the outer ring of the fixing ring (41). A pressure ring (43) fixedly connected to the inner ring of the threaded sleeve (42) is provided on the side of the fixing ring (41) away from the connecting male (2). The pressure ring (43) is slidably sleeved on the outer ring of the second connecting cylinder (31). A first rubber ring (44) is provided between the pressure ring (43) and the fixing ring (41). A limit ring (45) is provided on the side of the pressure ring (43) away from the fixing ring (41). The limit ring (45) is fixedly connected to the outer ring of the second connecting cylinder (31).

6. The heat-resistant and waterproof integrated wiring harness for air conditioning according to claim 5, characterized in that, The sealing assembly (4) further includes a positioning ring (46) fixedly connected to the outer ring of the first connecting cylinder (21). The positioning ring (46) has a threaded groove (47) on the side near the connecting female head (3). The threaded sleeve (42) is threadedly connected to the threaded groove (47). A second rubber ring (48) is provided in the threaded groove (47).

7. The heat-resistant and waterproof integrated wiring harness for air conditioning according to claim 6, characterized in that, The fixing ring (41) is fixedly connected to a number of limiting blocks (5) on the side near the male connector (2), and the positioning ring (46) is provided with a number of limiting grooves (51) corresponding to the limiting blocks (5) on the side near the female connector (3).

8. The heat-resistant and waterproof integrated wiring harness for air conditioning according to claim 7, characterized in that, The inner insulation layer (12) is made of polyvinyl chloride, the heat-resistant layer (13) is a ceramic fiber braided layer, the waterproof layer (15) is a butyl rubber layer, and the outer insulation layer (16) is made of cross-linked polyethylene.

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