Wire passing bridge, electric control device and heating and ventilation equipment

Abstract

This application discloses a wire bridge, an electrical control device, and HVAC equipment. The wire bridge is applied to the electrical control device, which has mating holes. The wire bridge includes a main body and a connecting part. A wire channel is formed within the main body, through which connecting wires are arranged in an orderly manner, making the wiring inside the electrical control box neater and helping to reduce improper contact between connecting wires and components of various circuit modules. The connecting part is connected to the side of the main body opposite to the opening of the wire channel. The connecting part is used to insert into the mating hole to fix the wire bridge inside the electrical control device. This facilitates the installation and replacement of the wire bridge and helps to reduce the size of the wire bridge along the width direction of the wire channel. In the electrical control device of this application, the wire bridge is installed in the electrical control box through the connecting part. The position of the wire bridge is independent of the circuit modules inside the electrical control box. When maintenance or replacement of circuit modules is required, there is no need to disassemble the wire bridge, effectively improving the maintainability and assembly convenience of the electrical control device.

Description

Technical Field

[0001] This application relates to the field of HVAC equipment technology, and in particular to a cable bridge, an electrical control device, and HVAC equipment. Background Technology

[0002] In electronic control devices, multiple circuit modules are electrically connected via connecting wires. Traditional electronic control devices often use loose wiring, with connecting wires randomly arranged within the device, resulting in scattered wiring areas and messy wire harness layouts, which is inconvenient for maintenance and poses safety hazards. Related technologies use wiring structures such as cable trays to manage the wiring. However, these wiring structures are bulky, require independent space, and affect the assembly or replacement of surrounding components, hindering the miniaturization and compact design of electronic control devices. Utility Model Content

[0003] This application provides a cable bridge, an electrical control device, and a heating and ventilation system, which can solve the technical problems in related technologies where unreasonable wiring structures lead to large space occupation and interference with adjacent components.

[0004] In a first aspect, embodiments of this application provide a wire bridge, which is applied to an electronic control device. The electronic control device is provided with a mating hole. The wire bridge includes a main body and a connecting part. A wire groove is formed in the main body. The connecting part is connected to the side of the main body away from the groove opening and is used to insert into the mating hole to fix the position of the wire bridge in the electronic control device.

[0005] In some embodiments, the main body includes a bottom wall and two side walls connected to opposite sides of the bottom wall, the two side walls and the bottom wall enclosing the cable groove, wherein the connecting portion is connected to the bottom wall.

[0006] In some embodiments, the cable tray is used to accommodate a connecting wire, and the sidewall has a sidewall surface facing the adjacent sidewall; the cable bridge further includes a wire pressing portion, which protrudes from the sidewall surface of the sidewall and is spaced apart from the bottom wall to prevent the connecting wire from moving along the depth direction of the cable tray.

[0007] In some embodiments, the pressure section includes a pressure segment and a guide segment: the pressure segment has a limiting surface for stopping the connecting line; the guide segment is connected to the side of the pressure segment away from the bottom wall, the guide segment is provided with a guide surface facing the adjacent side wall, and the guide surface is an inclined surface sloping towards the side where the adjacent side wall is located in the direction from the guide segment toward the pressure segment.

[0008] In some embodiments, the cable bridge includes multiple sets of clamping portions, which are spaced apart along the extension direction of the cable bridge. Each set of clamping portions includes two clamping portions disposed on two side walls. The two clamping portions in the same set are arranged opposite each other in a direction perpendicular to the extension direction of the cable bridge, or the two clamping portions in the same set are staggered in a direction perpendicular to the extension direction of the cable bridge.

[0009] In some embodiments, the main body is provided with outlets at both ends along the extension direction of the cable bridge. The outlets are connected to the cable groove and are used for connecting wires to pass through and extend out of the cable bridge.

[0010] In some embodiments, the connecting portion includes a plug-in body and a plurality of plug-in flaps, each of the plug-in flaps being connected to the plug-in body around the outer periphery of the plug-in body; wherein the plug-in flaps are configured to undergo elastic deformation so that the plug-in flaps extend into the mating hole and abut against the inner wall of the mating hole.

[0011] In some embodiments, the plug-in flap has an elastically constricted end and a connecting end disposed opposite each other along its extension direction. The connecting end is connected to the outer peripheral wall of the plug-in body. The elastically constricted end is spaced apart from the outer wall of the plug-in body along the circumference of the plug-in body, so that a deformable space is formed between the plug-in flap and the plug-in body. A plurality of plug-in flaps are arranged sequentially at intervals along the insertion direction of the connecting portion, and the elastically constricted end of each plug-in flap is disposed closer to the main body portion relative to the connecting end. Alternatively, a plurality of plug-in flaps are arranged sequentially at intervals along the circumference of the plug-in body, and each plug-in flap extends obliquely outward at an angle to the radial direction of the plug-in body.

[0012] In some embodiments, the plug-in body has a central axis; from the direction of the elastic constriction end toward the connection end, the outer wall surface of the plug-in petal is inclined toward the side where the central axis of the plug-in body is located, and the inclination angle is α, where α satisfies: 5°≤α≤90°.

[0013] In some embodiments, the plug-in flap has an opening groove extending from the connecting end to the resilient constriction end.

[0014] In some embodiments, the plug-in body has a central axis, the plug-in body includes a connecting middle portion and a guide top portion connected sequentially along the plugging direction of the connecting portion, and a plurality of the plug-in petals are connected to the connecting middle portion; from the connecting middle portion toward the guide top portion, the outer peripheral wall surface of the guide top portion is an inclined surface inclined toward the central axis of the plug-in body.

[0015] In some embodiments, the plug-in body includes a positioning root and a connecting middle part connected sequentially along the plugging direction of the connecting portion, and a plurality of plug-in petals are connected to the connecting middle part; the connecting portion also includes a plurality of limiting ribs, the limiting ribs protruding from the outer wall surface of the positioning root, the plurality of limiting ribs being spaced apart circumferentially along the positioning root, and the plurality of limiting ribs being adapted to extend into the mating hole and abut against the inner wall surface of the mating hole along the radial direction of the mating hole.

[0016] In some embodiments, the diameter of the mating hole is A, the maximum diameter of the insertion flap is R1, and the diameter of the circumcircle of the outer wall surface of the plurality of limiting ribs is R2, wherein A, R1, and R2 satisfy: R2 < A < R1.

[0017] In some embodiments, the connecting portion further includes a positioning portion connected to the insertion body, and the positioning portion abuts against the wall surface of the mating hole of the electronic control device along the insertion direction of the connecting portion.

[0018] In some embodiments, the connecting portion further includes an elastic arm connected to the outer wall surface of the plug-in body. The elastic arm extends radially from the outer wall surface of the plug-in body to both sides of the plug-in body and is inclined towards the side where the plug-in flap is located, so that the elastic arm can deform and clamp the mating portion radially along the plug-in body.

[0019] In some embodiments, the electronic control device includes a mating portion for defining the mating hole; the connecting portion extends along the depth direction of the wire groove and is adapted to engage with the mating portion along the depth direction of the wire groove.

[0020] In some embodiments, the inner wall surface of the mating hole forms a limiting step; the connecting portion includes a plug-in body and a plug-in flap protruding circumferentially from the outer wall surface of the plug-in body; as the connecting portion enters the mating hole along the plugging direction, the plug-in flap is adapted to undergo elastic deformation circumferentially in the plug-in body to extend into the mating hole, and is adapted to undergo elastic recovery within the mating hole so that its end abuts against the limiting step of the mating hole.

[0021] In some embodiments, the inner wall of the mating hole is provided with threads, and the limiting step is formed between two adjacent threads; the minor diameter of the thread in the mating hole is D1, the major diameter of the thread is D2, the maximum diameter of the insertion flap is R1, and the diameter of the insertion body is R3; the wire bridge satisfies at least one of the following conditions: (1) R3≤D1; (2) D1≤R1≤D2.

[0022] Secondly, this application also provides an electrical control device, which includes an electrical control box and the aforementioned cable bridge. The electrical control box has an installation cavity, and the cavity wall of the installation cavity is provided with the mating hole. The connecting portion of the cable bridge is inserted into the mating hole to fix the cable bridge to the electrical control box.

[0023] In some embodiments, the electronic control device includes a first circuit module and a second circuit module, which are spaced apart within the mounting cavity; a wire bridge extending along the edge of the first circuit module, the connecting portion being inserted into the mating hole of the electronic control box to fix the wire bridge to the electronic control box; and a connecting wire passing through the wire groove and electrically connecting the first circuit module and the second circuit module.

[0024] In some embodiments, the first circuit module includes two first circuit boards arranged side by side, and the electronic control device includes a plurality of said wire bridges; one of the plurality of said wire bridges is a first wire bridge that extends along the gap between the first circuit board and the electronic control box; and / or, one of the plurality of said wire bridges is a second wire bridge that extends at least partially along the gap between two adjacent first circuit boards.

[0025] In some embodiments, the inner wall surface of the mating hole forms a limiting step, and a portion of the connecting part abuts against the limiting step in the insertion direction of the connecting part; the inner wall surface of the mating hole is provided with threads, and the limiting step is formed between two adjacent turns of threads; or, the inner wall surface of the mating hole is provided with multiple limiting protrusions, and the side surfaces of the limiting protrusions and the inner wall surface of the mating hole together form the limiting step.

[0026] In some embodiments, the electrical control box includes a limiting protrusion plate protruding from the cavity wall of the mounting cavity; the cable bridge also includes a limiting portion connected to the bottom surface of the main body, the limiting portion including two limiting walls spaced apart along a first direction, and a limiting cavity is formed between the main body and the two limiting walls; wherein the limiting protrusion plate is disposed in the limiting cavity, and the main body rests against the limiting protrusion plate.

[0027] Thirdly, embodiments of this application also provide a heating, ventilation, and air conditioning (HVAC) device, including a housing and the aforementioned electrical control device, wherein the electrical control device is disposed within the housing.

[0028] In some embodiments, the housing is provided with an access port, and the electronic control device is located at the access port.

[0029] According to embodiments of this application, a cable bridge, an electrical control device, and HVAC equipment are disclosed. The cable bridge's cable trays allow for orderly wiring of connecting wires, resulting in cleaner internal wiring within the electrical control device. The cable bridge isolates the connecting wires from the functional surfaces of the various circuit modules within the electrical control device, helping to reduce improper contact between the connecting wires and the components of each circuit module, thus improving the electrical safety of the electrical control device. In this application, the connecting portion of the cable bridge is inserted into the mating hole of the electrical control device, facilitating the positioning and detachable installation of the cable bridge. Furthermore, the connecting portion is positioned away from the opening of the cable tray, which helps to reduce the cable bridge's dimensions along the width of the cable tray, thereby reducing interference with the assembly and disassembly paths of adjacent components in the width direction of the cable tray, and improving the maintainability and assembly convenience of the electrical control device.

[0030] In the electrical control device of this application, the cable bridge is plugged into the electrical control box via a connector, making the cable bridge's position independent of the circuit modules inside the control box. Therefore, it does not obstruct the disassembly and replacement of each circuit module. When maintenance or replacement of a circuit module is required, the operator does not need to additionally disassemble the cable bridge, effectively improving the maintainability and ease of assembly of the electrical control device. Furthermore, the cable bridge is arranged along the edge of the first circuit module, utilizing the space surrounding the first circuit module without occupying additional space. Thus, without increasing the overall size of the electrical control device, it achieves orderly storage and guidance of the connecting cables. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the main structure of an outdoor unit according to an embodiment of this application;

[0033] Figure 2 This is a front view schematic diagram of the electrical control device exposed in the access port according to an embodiment of this application;

[0034] Figure 3 This is a three-dimensional structural diagram of an electronic control device exposed in an access port according to an embodiment of this application;

[0035] Figure 4 This is a three-dimensional structural schematic diagram of an electronic control device according to an embodiment of this application;

[0036] Figure 5 This is a partial exploded structural diagram of an electronic control device according to an embodiment of this application;

[0037] Figure 6for Figure 5 Enlarged structural diagram at point A;

[0038] Figure 7 This is a three-dimensional structural schematic diagram of a cross-bridge according to an embodiment of this application;

[0039] Figure 8 This is a three-dimensional structural schematic diagram of a cross-bridge according to another embodiment of this application;

[0040] Figure 9 for Figure 7 A magnified schematic diagram of the local structure at point B;

[0041] Figure 10 This is yet another three-dimensional structural schematic diagram of the cross-bridge according to another embodiment of this application;

[0042] Figure 11 for Figure 10 A magnified schematic diagram of the local structure at point C;

[0043] Figure 12 This is a partial cross-sectional schematic diagram of an embodiment of the electronic control device of this application;

[0044] Figure 13 This is a partial cross-sectional schematic diagram of a cable bridge according to another embodiment of this application;

[0045] Figure 14 This is a partial three-dimensional structural diagram of a cable bridge according to another embodiment of this application;

[0046] Figure 15 This is an assembly diagram of a cable bridge according to an embodiment of this application;

[0047] Figure 16 This is a longitudinal sectional view of an electrical control box according to an embodiment of this application.

[0048] Figure label:

[0049] 1. Outdoor unit;

[0050] 2. Housing; 2a. Inspection port;

[0051] 3. Electrical control device;

[0052] 10. Electrical control box; 110. First cavity; 120. Second cavity; 130. Third cavity; 11. Mating part; 11A. Mating hole; 12. Limiting protrusion; 14. Heat dissipation structure; 141. Cold plate body; 142. First enclosure plate; 143. Second enclosure plate; 15. First box cover; 16. Second box cover; 17. Third box cover; 18. Fan wiring part; 19. Compressor wiring part;

[0053] 20. First circuit module; 21. First circuit board; 22. Driver board; 23. Filter board;

[0054] 30. Second circuit module; 31. Main control board;

[0055] 40. Cable guide bridge; 401. First cable guide bridge; 402. Second cable guide bridge; 41. Main body; 410. Cable groove; 41a. Cable outlet; 411. Bottom wall; 412. Side wall; 412a. Side wall surface; 42. Connecting part; 421. Insertion body; 4211. Connecting middle part; 4212. Guide top; 4213. Positioning root; 422. Insertion petal; 4221. Elastic constriction end; 4220. Opening groove; 4222. Connecting end; 423. Limiting rib; 43. Wire pressing part; 431. Wire pressing section; 43a. Limiting surface; 432. Inlet section; 43b. Inlet surface; 44. Positioning part; 45. Elastic arm; 46. Limiting part; 461. Limiting wall;

[0056] 50. Adapter board; 51. First terminal block; 52. Second terminal block;

[0057] 60. Power terminal block;

[0058] X, the first direction. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0060] Heating, ventilation, and air conditioning (HVAC) systems are used to regulate the indoor environment, including functions such as heating, ventilation, and air conditioning. Their main purpose is to provide users with a comfortable and healthy indoor environment by controlling parameters such as temperature, humidity, and airflow. Common HVAC equipment includes air conditioners, radiators, and ventilation systems. These devices are widely used in residential, commercial buildings, and industrial settings.

[0061] Taking HVAC equipment as an example, an air conditioning system can be a multi-split system for buildings, that is, multiple indoor units are connected in parallel relative to one or more outdoor units 1, forming a refrigerant circuit so that refrigerant can circulate. Figures 1-3 The diagram shows the outdoor unit 1 of the air conditioning system. Outdoor unit 1 has a casing 2, inside which are housed a compressor, switching valve, outdoor heat exchanger, outdoor expansion valve, and oil separator, etc. These components are connected by refrigerant piping. Additionally, an air supply fan is installed in outdoor unit 1.

[0062] Furthermore, the outdoor unit 1 also includes an electrical control device 3, which can be box-shaped. The casing 2 is the external structure of the outdoor unit 1, protecting internal components, providing a mounting base, and optimizing airflow. The casing 2 can be made of metal or high-strength plastic, possessing good mechanical strength and corrosion resistance. The casing 2 can be cuboid and placed on the roof or ground. The casing 2 isolates internal live components from the outside environment, preventing direct contact by users and reducing the occurrence of electric shock and other safety accidents. The electrical control device 3 is the core control component of the HVAC equipment. Installed inside the casing 2, it facilitates maintenance and replacement, and also streamlines the installation and layout of the overall HVAC structure. The electrical control device 3 is responsible for precisely controlling the operation of the HVAC equipment. It is equipped with various circuit modules and uses various electronic components and wiring to control the HVAC equipment's start-up, stop, temperature adjustment, mode switching, and other operations.

[0063] The housing 2 provides protection for the electronic components inside the electronic control device 3, preventing dust, moisture, oil, and other external impurities from entering. It also protects the electronic control device 3 from extreme environmental conditions (such as temperature, humidity, and chemical corrosion), ensuring normal operation in various environments and extending its service life. The electronic control device 3 contains high-voltage circuits and live components; housing it within the housing 2 prevents accidental contact by users, reduces the risk of electric shock, and improves safety. Furthermore, the housing 2 acts as a shield, reducing the impact of external electromagnetic interference on the electronic components inside the electronic control device 3, ensuring the stability and reliability of the control system.

[0064] In this embodiment, the housing 2 is rectangular, and the electronic control device 3 has a length direction, which is arranged along the height direction (i.e., the vertical direction) of the housing 2. Therefore, the internal structure of the electronic control device 3 has a vertical arrangement. This vertical length arrangement can better meet the overall structural layout requirements of the equipment when the housing 2 has a large height and limited horizontal space, and is also conducive to heat dissipation and maintenance operations.

[0065] It should be noted that the present invention is not limited to the arrangement of the electronic control device 3 along the height direction of the housing 2 in the above embodiments. In other embodiments, the electronic control device 3 may also be arranged along the length direction of the housing 2, or the electronic control device 3 may also be arranged along the width direction of the housing 2. Furthermore, the electronic control device 3 may not be a single form extending along the length direction; it may also vary according to the internal space of the housing 2, for example, it may be formed into an approximate "L" shape, "T" shape, etc.

[0066] In some embodiments, an air duct is formed within the housing 2. This air duct guides air to flow along a predetermined path, preventing disordered airflow within the housing 2 and thus improving heat dissipation efficiency. Specifically, as exemplarily shown in the figure, the air supply fan is located at the top of the housing 2, i.e., at the top of the air duct, and blows air upwards. Furthermore, the electronic control device 3 is located within the air duct, so that the airflow within the air duct can carry away the heat generated by the electronic control device 3, ensuring the heat dissipation effect of the electronic control device 3.

[0067] Please continue reading. Figure 3 In some embodiments, the housing 2 is provided with an access port 2a. In one configuration, the housing 2 includes a housing body and an access door rotatably connected to the housing body, allowing maintenance personnel to expose the access port 2a by opening the access door. In another configuration, the housing 2 includes a housing body and a front panel connected to the housing body. The front panel is fixedly connected to the housing body by screws, allowing maintenance personnel to separate the front panel from the housing body by removing the screws to expose the access port 2a. This application does not impose specific limitations on the manner in which the access port 2a is exposed.

[0068] The electronic control device 3 is located at the inspection port 2a, allowing maintenance personnel to quickly access it without having to extend excessively into the casing 2, thus greatly improving the efficiency of maintenance and repair.

[0069] Within the electrical control device 3, multiple circuit modules are electrically connected to each other or within each circuit module via connecting wires. In related technologies, the electrical control device may lack a wiring structure, resulting in messy and crisscrossing connecting wires, or the wiring structure may be too large, easily occupying layout space and affecting the assembly or replacement of surrounding components, which is detrimental to the maintenance convenience and layout flexibility of the electrical control device 3. Based on this, the embodiments of this application provide a cable bridge, an electrical control device, and HVAC equipment.

[0070] Please see Figures 4-6The electronic control device 3 includes a mating hole 11A and a wire bridge 40 for routing connecting wires within the electronic control device 3. The wire bridge 40 includes a main body 41 and a connecting part 42 connected to each other. A wire groove 410 is formed within the main body 41, and the connecting part 42 is connected to the side of the main body 41 opposite to the opening of the wire groove 410. The connecting part 42 is used to insert into the mating hole 11A to fix the position of the wire bridge 40 within the electronic control device 3. In practical use, the wire groove 410 of the wire bridge 40 can arrange connecting wires in an orderly manner, making the internal wiring of the electronic control device 3 neater and helping to reduce improper contact between connecting wires and components of various circuit modules. In traditional wire routing, connecting wires are usually directly exposed between the internal structures of the electronic control device 3, and are prone to bridging with electronic components or solder joints of the circuit module. This may lead to safety hazards such as insulation wear and short circuits due to heat, vibration or long-term pressure. The main body 41 of the wire bridge 40 of this application forms a clear conductor path and isolates the connecting wires, thereby improving the electrical safety of the electronic control device 3.

[0071] Understandably, the cable bridge 40 is fixedly installed in the mating hole 11A of the electrical control device 3 via the connecting part 42, ensuring that the cable bridge 40 remains stable during wiring and does not loosen or shift due to the tension of the connecting wire or external vibration. Furthermore, the plug-in connection structure facilitates the installation and replacement of the cable bridge 40. The connecting part 42 connects to the side of the main body 41 opposite to the opening of the cable tray 410, which helps reduce the size of the cable bridge 40 along the width direction of the cable tray 410, thereby reducing the obstruction of the cable bridge 40 to adjacent components in the width direction of the cable tray 410 and improving the maintainability and assembly convenience of the electrical control device 3.

[0072] In specific implementation, the electrical control device 3 includes an electrical control box 10 and multiple circuit modules disposed within the electrical control box 10. The mating hole 11A can be disposed on the wall of the electrical control box 10, or the mating hole 11A can be disposed on the board surface of the circuit module. The mating relationship between the cable bridge 40 and the mating hole 11A does not depend on the change of installation position. Therefore, reliable positioning and flexible replacement can be achieved in various assembly scenarios, giving the cable bridge 40 good structural adaptability and versatility, thereby improving the overall wiring flexibility and maintenance convenience of the electrical control device 3.

[0073] Optionally, the cable bridge 40 may be made of insulating materials, such as ABS plastic or rubber, to ensure electrical safety.

[0074] It should be noted that the connecting lines of the electronic control device 3 include power supply lines and signal lines. In specific implementations, relevant technical personnel can flexibly configure the cable bridges 40 to accommodate the connecting lines according to the actual wiring requirements of different functional circuits inside the electronic control device 3. For example, multiple cable bridges 40 can be installed inside the electronic control device 3, respectively for the independent routing of signal lines and power supply lines, to achieve physical isolation between high-voltage and low-voltage circuits. As another example, the power supply lines and signal lines inside the electronic control device 3 may be located in different cavities, with the cable bridge 40 used for routing the signal lines in one cavity, or the cable bridge 40 used for routing the power supply lines in one cavity.

[0075] The structure of the cable bridge 40 according to the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0076] Please continue reading. Figure 7 and Figure 8 The main body 41 includes a bottom wall 411 and two side walls 412 connected to opposite sides of the bottom wall 411. The two side walls 412 and the bottom wall 411 enclose a wire passage 410. It is understood that the wire passage 410 has an open design on one side, which ensures effective storage of the connecting wire while the main body 41 has a simple structure and is easy to form, helping to reduce manufacturing costs and improve assembly efficiency. Furthermore, the connecting wire does not require complex winding operations when threading; it can be directly inserted into the wire passage 410 from the open side, making operation convenient.

[0077] The connecting part 42 is connected to the bottom wall 411, which helps to reduce the overall size of the cable bridge 40 along the width direction of the cable tray 410. This avoids the connecting part 42 protruding into the width direction of the cable tray 410 and occupying extra space, thereby reducing the interference of the cable bridge 40 on adjacent components, especially the disassembly and assembly paths of circuit modules. This not only optimizes the spatial adaptability of the cable bridge 40 but also facilitates reasonable wiring and efficient layout within the compact internal structure of the electronic control device 3, further improving the maintainability of the electronic control device 3.

[0078] like Figure 9 As shown, the cable bridge 40 also includes a wire pressing part 43. The side wall 412 has a side wall surface 412a facing the adjacent side wall 412. The wire pressing part 43 protrudes from the side wall surface 412a of the side wall 412, and the wire pressing part 43 is spaced apart from the bottom wall 411. The connecting wire is placed in the cable groove 410 and is located between the wire pressing part 43 and the bottom wall 411 along the depth direction of the cable groove 410. The wire pressing part 43 can stop the connecting wire from moving along the depth direction of the cable groove 410, thereby preventing the connecting wire from accidentally coming out. In specific implementation, the connecting wire can be directly inserted from the open side of the cable groove 410 during the laying process, and slightly pressed in at the position where it passes the wire pressing part 43 to form a stable embedding, without the need for complicated snap-fit ​​or binding actions, effectively improving assembly efficiency and consistency.

[0079] In some embodiments, the wire pressing portion 43 includes a wire pressing section 431 and a guide section 432. The wire pressing section 431 has a limiting surface 43a disposed towards the bottom wall 411. The limiting surface 43a is used to stop the connecting wire in the depth direction of the wire groove 410 to prevent the connecting wire from accidentally coming out of the wire groove 410 due to vibration, tension changes, or gravity. The guide section 432 is connected to the side of the wire pressing section 431 away from the bottom wall 411. The guide section 432 has a guide surface 43b disposed towards the adjacent side wall 412. From the direction of the guide section 432 toward the wire pressing section 431, the guide surface 43b is an inclined surface that slopes toward the side where the adjacent side wall 412 is located.

[0080] Based on the structure of the wire clamping section 43 in the above embodiment, during the wiring process, when the connecting wire is inserted from the open side of the wire groove 410, it easily contacts the inclined surface of the guide section 432 first. The inclined surface applies a guiding effect to the connecting wire, guiding it smoothly into the stable embedding area formed between the wire clamping section 431 and the bottom wall 411. The inclined guide section 432 helps reduce the resistance of the connecting wire during assembly, improves wiring efficiency, and avoids damage to the cable sheath or breakage of the internal conductor due to forced insertion.

[0081] In this embodiment, the cable bridge 40 includes multiple sets of clamping portions 43, which are spaced apart along the extension direction of the cable bridge 40, thereby creating a multi-point limiting effect on the cable laying path. Each set of clamping portions 43 includes two clamping portions 43 disposed on two side walls 412. The clamping portions 43 in the same set can be arranged opposite each other, that is, the two clamping portions 43 are arranged opposite each other in a direction perpendicular to the extension direction of the cable bridge 40. The oppositely arranged clamping portions 43 form a symmetrical limiting structure and can stably limit the cable. Of course, the clamping portions 43 in the same set can also be arranged in a staggered manner, that is, the two clamping portions 43 in the same set are staggered in a direction perpendicular to the extension direction of the cable bridge 40. The staggered arrangement forms a larger guide path, which helps to improve the excessive pressure caused by symmetrical clamping, reduce the risk of jamming of the cable during the insertion process, and reduce the probability of local damage to the cable sheath.

[0082] In some embodiments, the main body 41 is provided with outlets 41a at both ends along the extension direction of the cable bridge 40. The outlets 41a are connected to the cable groove 410. The connecting wire passes through the outlet hole and extends out of the cable bridge 40 from the outlet 41a to be electrically connected to the circuit module of the electronic control device 3. The connecting wire does not need to be led out from the middle part of the cable bridge 40, thereby reducing the bending or sharp turn at the outlet and improving the reliability and safety of the connecting wire in long-term use.

[0083] Please see Figures 10-11In this embodiment, the connecting part 42 includes a plug-in body 421 and a plurality of plug-in petals 422. Each plug-in petal 422 is connected to the plug-in body 421 around the outer periphery of the plug-in body 421, that is, the plug-in petals 422 form a deformable annular structure around the plug-in body 421. The plug-in petals 422 have good elastic properties, which allows them to undergo elastic compression deformation relative to the plug-in body 421 during the insertion into the mating hole 11A, so as to smoothly pass through the entrance of the mating hole 11A. After insertion, the plug-in petals 422 open outward under their own elastic recovery and abut against the inner wall of the mating hole 11A, so as to realize a reliable connection between the connecting part 42 and the mating hole 11A.

[0084] In some embodiments, the insertion flap 422 has an elastic constriction end 4221 and a connecting end 4222 disposed opposite to each other along its extension direction. The connecting end 4222 is connected to the outer peripheral wall of the insertion body 421. The elastic constriction end 4221 is disposed at intervals from the outer wall of the insertion body 421 along the circumference of the insertion body 421, so that a deformable space is formed between the insertion flap 422 and the insertion body 421. Thus, the insertion flap 422 has a strong elastic deformation capability during the insertion into the mating hole.

[0085] Optionally, multiple insertion petals 422 are arranged sequentially at intervals along the insertion direction of the connecting portion 42, and the elastic constricted end 4221 of each insertion petal 422 is set closer to the main body 41 than the connecting end 4222. That is, the insertion petal 422 extends from the outer wall surface of the insertion body 421 in the opposite direction to the insertion direction of the connecting portion 42, while the elastic constricted end 4221 of the insertion petal 422 is suspended relative to the outer wall surface of the insertion body 421. Thus, during the process of the insertion petal 422 extending into the mating hole 11A, the connecting end 4222 enters the mating hole 11A before the elastic constricted end 4221, and the part of the insertion petal 422 near the elastic constricted end 4221 gradually undergoes elastic deformation and recovery under the restriction of the mating hole 11A.

[0086] Optionally, multiple insertion petals 422 are arranged sequentially at intervals along the circumference of the insertion body 421, and each insertion petal 422 extends outward at an angle to the radial direction of the insertion body 421. That is, the insertion petal 422 has a conical expansion trend, and a wedge-shaped deformable space is formed between the outer periphery of the insertion body 421 and the insertion petal 422, so that the insertion petal 422 has good deformation response capability.

[0087] In some embodiments, such as Figure 12As shown, the insertion body 421 has a central axis parallel to the insertion direction of the connecting part 42. From the elastic constriction end 4221 toward the connecting end 4222, the outer wall surface of the insertion petal 422 is inclined toward the side where the central axis of the insertion body 421 is located, and the inclination angle is α, which satisfies: 5°≤α≤90°. By controlling the inclination angle α to satisfy the above range, the insertion petal 422 has a certain elasticity and deformation capacity, so that during the insertion of the connecting part 42, the insertion petal 422 undergoes appropriate deformation and enters the mating hole 11A.

[0088] In some embodiments, the connecting portion 42 includes a plurality of insert flaps 422 arranged at intervals along the insertion outlet. Each insert flap 422 has an opening groove 4220 extending from the connecting end 4222 to the elastically constricted end 4221 to facilitate injection molding demolding. Furthermore, during the process of the connecting portion 42 entering the mating hole 11A along the insertion direction, gas between the insert flap 422 and the mating hole 11A can be discharged through the opening groove 4220, thereby reducing pressure buildup during the insertion process and allowing the insert flap 422 to enter the mating hole 11A more smoothly.

[0089] In some embodiments, the insertion body 421 includes a connection middle portion 4211 and a guide top 4212 connected sequentially along the insertion direction of the connection portion 42. A plurality of insertion petals 422 are connected to the connection middle portion 4211. From the connection middle portion 4211 toward the guide top 4212, the outer peripheral wall surface of the guide top 4212 is an inclined surface that is inclined toward the central axis of the insertion body 421, so that the guide top 4212 guides the connection portion 42 into the mating hole 11A.

[0090] In some embodiments, the insertion body 421 includes a positioning root 4213 and a connecting middle portion 4211 connected sequentially along the insertion direction of the connecting portion 42. Multiple insertion petals 422 are connected to the connecting middle portion 4211. The connecting portion 42 also includes multiple limiting ribs 423, which protrude from the outer wall surface of the positioning root 4213. The multiple limiting ribs 423 are spaced apart circumferentially along the positioning root 4213 and are adapted to extend into the mating hole 11A and abut against the inner wall surface of the mating hole 11A radially. In this embodiment, the multiple limiting ribs 423 provide uniform support force, effectively suppressing the shaking or deflection of the insertion body 421 within the mating hole 11A, reducing insertion tilting caused by manufacturing tolerances or assembly errors during insertion, thereby enhancing the positioning stability and structural rigidity of the connecting portion 42 and ensuring the long-term stable fixation of the cable bridge 40 in the electrical control device 3.

[0091] Furthermore, the diameter of the mating hole 11A is A, the maximum diameter of the insertion flap 422 is R1, and the diameter of the circumscribed circle containing the outer walls of the multiple limiting ribs 423 is R2, where R2 < A < R1. It should be noted that, as... Figure 13As shown, the maximum diameter R1 of the insertion flap 422 refers to the maximum diameter of the circumference traversed by the outer wall surface of the insertion flap 422 when no elastic deformation occurs (i.e., elastic compression). The maximum diameter of the insertion flap 422 is larger than the diameter of the mating hole 11A, so that the insertion flap 422 undergoes elastic compression when inserted into the mating hole 11A, and abuts against the inner wall of the mating hole 11A under the action of elastic recovery. Furthermore, the diameter of the circumcircle of the outer peripheral walls of the multiple limiting ribs 423 is slightly smaller than the diameter of the mating hole 11A, avoiding excessive interference that could affect assembly efficiency and facilitating the smooth insertion of the multiple limiting ribs 423 into the mating hole 11A.

[0092] In some embodiments, the connecting portion 42 further includes a positioning portion 44, which is connected to the side of the insertion body 421 opposite to the mating hole 11A. In a direction perpendicular to the insertion direction, the size of the positioning portion 44 is larger than the size of the insertion body, so as to form an abutment position at the end of the positioning portion 44 facing the insertion body 421. Along the insertion direction of the connecting portion 42, the abutment position of the positioning portion 44 abuts against the wall surface of the electronic control device 3 where the mating hole 11A is provided, so as to position the insertion depth of the connecting portion 42. For example, the electronic control device 3 includes a mating portion 11, the end face of which is provided with a mating hole 11A, and the abutment position of the positioning portion 44 is adapted to abut against the end face of the mating portion 11 to position the insertion depth of the connecting portion 42.

[0093] Furthermore, in this embodiment, the connecting portion 42 further includes an elastic arm 45, which is connected to the outer wall surface of the insertion body 421. The elastic arm 45 extends radially from the outer wall surface of the insertion body 421 to both sides of the insertion body 421, and is inclined towards the side where the insertion petal 422 is located. When the connecting portion 42 is pushed into the mating hole 11A along the insertion direction, the inclined elastic arm 45 will elastically expand radially along the insertion body 421 when it contacts the end of the mating portion 11, and tends to elastically recover after insertion, thereby clamping the mating portion 11 from both sides radially along the insertion body 421. It can be understood that the inclined arrangement of the elastic arm 45 gives it good deformation ability during insertion, which facilitates quick installation. The clamping force it forms helps to enhance the installation stability of the connecting portion 42 and improve the loosening and displacement of the connecting portion 42 caused by vibration, impact or long-term load.

[0094] In this embodiment of the application, the electronic control device 3 includes a mating part 11 for defining the mating hole 11A, and a connecting part 42 extending along the depth direction of the wire passage groove 410. In actual assembly, the connecting part 42 is inserted and mated with the mating part 11 along the depth direction of the wire passage groove 410, thereby securely installing the wire bridge 40 inside the electronic control device 3.

[0095] In some embodiments, a limiting step is formed on the inner wall surface of the mating hole 11A. As the connecting part 42 enters the mating hole 11A along the insertion direction, the portion of the insertion petal 422 near the elastic constriction end 4221 is compressed and elastically contracted towards the side closer to the insertion body 421 when entering the mating hole 11A, thereby smoothly passing through the smaller diameter entrance area of ​​the mating hole 11A. When the insertion continues until the end of the elastic constriction end 4221 aligns with the limiting step inside the mating hole 11A, the elastic constriction end 4221 automatically rebounds when the external pressure is released, and its end engages with the limiting step, thereby forming a reliable limiting and positioning effect and preventing the connecting part 42 from loosening or falling off.

[0096] In specific implementation, the mating hole 11A can be configured as a threaded hole to form a limiting step. For example, the inner wall surface of the mating hole 11A is threaded, and a limiting step is formed between two adjacent turns of the thread. The limiting step can provide a clear physical block for the insertion petal 422 in the direction in which the connecting part 42 disengages from the mating hole 11A, preventing the connecting part 42 from loosening or shifting due to vibration or external force. In actual manufacturing, the dimensions of the insertion body 421 and the insertion petal 422 of the connecting part 42 are adapted to the dimensions of the mating hole 11A to ensure smooth insertion and stable connection. Specifically, the minor diameter of the internal thread in the mating hole 11A is D1, and the maximum diameter of the insertion body 421 is R3. D1 and R1 satisfy: R3≤D1, so that the insertion body 421 can extend into the mating hole 11A. The major diameter of the internal thread in the mating hole 11A is D2, and the diameter of the insertion flap 422 is R1. D2 and R1 satisfy: R1≤D2, so that the end of the insertion flap 422 can enter between two adjacent threads. Furthermore, the distance between the roots of two adjacent insertion flaps 422 is approximately equal to the pitch of the internal thread, so that multiple insertion flaps 422 and multiple threads make one-to-one contact.

[0097] Optionally, the inner wall surface of the mating hole 11A is provided with a plurality of spaced limiting protrusions. The limiting protrusions are arranged around the inner wall of the mating hole 11A, and the side surface of the limiting protrusions and the inner wall surface of the mating hole 11A together form a limiting step. The limiting step can provide a clear physical block for the insertion petal 422 in the direction in which the connecting part 42 is disengaged from the mating hole 11A, so as to prevent the connecting part 42 from loosening or shifting due to vibration or external force.

[0098] Please see Figure 15This application also provides an electronic control device 3, which includes an electronic control box 10 and a wire bridge 40. The electronic control box 10 has a mounting cavity, and the cavity wall of the mounting cavity is provided with a mating hole 11A. The connecting portion 42 of the wire bridge 40 is inserted into the mating hole 11A of the electronic control box 10 to fix the wire bridge 40 to the electronic control box 10. Thus, the position of the wire bridge 40 is independent of the circuit modules within the electronic control box 10, and therefore does not hinder the disassembly and replacement of each circuit module. When maintenance or replacement of circuit modules is required, the operator does not need to additionally disassemble the wire bridge 40, effectively improving the maintainability and assembly convenience of the electronic control device 3.

[0099] Furthermore, the electronic control device 3 also includes a first circuit module 20, a second circuit module 30, and connecting wires. The first circuit module 20 and the second circuit module 30 are spaced apart within the mounting cavity. A wire bridge 40 extends along the edge of the first circuit module 20, and its connecting portion 42 is inserted into the mating hole 11A of the electronic control box 10 to fix the wire bridge 40 to the electronic control box 10. The connecting wires pass through the wire groove 410 and electrically connect the first circuit module 20 and the second circuit module 30. In this way, the wire bridge 40 is set up using the space around the first circuit module 20 without occupying additional space. Without increasing the overall size of the electronic control device 3, the connecting wires are neatly stored and guided. This application makes full use of the space around the first circuit module 20, improves the space utilization rate of the mounting cavity of the electronic control box 10, and is conducive to the compact and miniaturized design of the electronic control device 3.

[0100] In some embodiments, the two sidewalls 412 of the main body 41 extend from the bottom wall 411 toward the side away from the first circuit module 20, that is, the wire groove 410 is arranged away from the first circuit module 20. The bottom wall 411 and the sidewalls 412 can stop the connecting wires to reduce the risk of them pressing against or overlapping the circuit elements, and further realize the effective isolation between the connecting wires and the functional surfaces of the first circuit module 20.

[0101] In some embodiments, the electrical control box 10 includes a limiting protrusion 12 protruding from the cavity wall of the mounting cavity, and the cable bridge 40 further includes a limiting portion 46 connected to the bottom surface of the main body 41. The limiting portion 46 includes two limiting walls 461 spaced apart along a first direction X, and a limiting cavity is formed between the main body 41 and the two limiting walls 461. The limiting protrusion 12 is disposed in the limiting cavity, and the main body 41 rests against the limiting protrusion 12. The first direction X is perpendicular to the depth direction of the cable groove 410. The limiting portion 46 provides stable support for the cable bridge 40 in the depth direction of the cable groove 410, and the two limiting walls 461 limit and abut against the limiting protrusion 12 in the first direction X, thereby positioning the cable bridge 40 relative to the first circuit module 20 in the first direction X. When the extension length of the cable bridge 40 is long, multiple limiting parts 46 can be set along the extension direction of the cable bridge 40, and multiple limiting protrusions 12 can be set on the electrical control box 10 accordingly. The multiple limiting protrusions 12 cooperate with the multiple limiting parts 46 to perform multi-point positioning and support of the cable bridge 40, suppress the cable bridge 40 from tilting, sinking or lateral displacement during use, and improve the installation stability and positioning accuracy of the cable bridge 40.

[0102] In some embodiments, the wire bridge 40 can be used to lay connecting lines between the first circuit module 20 and the second circuit module 30. Exemplarily, the first circuit module 20 includes a first circuit board 21, and a portion of the second circuit module 30 is disposed on one side of the first circuit board 21. The connecting lines include a first wire harness electrically connected between the first circuit board 21 and the second circuit module 30. The wire bridge 40 includes a first wire bridge 401, which extends along the gap between the first circuit board 21 and the electrical control box 10, such that both ends of the first wire harness are electrically connected to the first circuit board 21 and the second circuit module 30 disposed adjacent to the first circuit board 21, respectively.

[0103] In other embodiments, the wire bridge 40 can be used to route connecting wires within the first circuit module 20. Exemplarily, the first circuit module 20 includes two first circuit boards 21 arranged side-by-side. The connecting wires also include a second wire harness electrically connected between the two first circuit boards 21. The wire bridge 40 includes a second wire bridge 402, which extends at least partially along the gap between two adjacent first circuit boards 21, allowing the second wire harness to pass through the gap between the two adjacent first circuit boards 21 and be electrically connected to each of the two first circuit boards 21.

[0104] In other embodiments, the first circuit module 20 includes two first circuit boards 21 arranged side by side, the electronic control device 3 includes a plurality of wire bridges 40, and the connecting wires include a first wire harness and a second wire harness. Optionally, both the first and second wire harnesses are signal lines, and the first wire harness is electrically connected to one of the first circuit boards 21 and the second circuit module 30, respectively, and the second wire harness is electrically connected to both of the first circuit boards 21. Correspondingly, the plurality of wire bridges 40 includes a first wire bridge 401 and a second wire bridge 402. The first wire bridge 401 extends along the gap between the first circuit board 21 and the electronic control box 10, so that the two ends of the first wire harness are electrically connected to the first circuit board 21 and the second circuit module 30, respectively. The second wire bridge 402 extends at least partially along the gap between two adjacent first circuit boards 21, so that the second wire harness is electrically connected to both first circuit boards 21, respectively.

[0105] Based on the first cable bridge 401 and the second cable bridge 402 in the above embodiments, the gap between the first circuit board 21 and the electrical control box 10 and the gap between two adjacent first circuit boards 21 are fully utilized, avoiding congestion or cross interference when wiring in the compact electrical control device 3, effectively organizing and guiding the connection lines, thereby making the wiring path more orderly and reducing the space waste of the mounting cavity of the electrical control box 10.

[0106] In some embodiments, the first circuit module 20 is configured as a frequency converter drive module, and the second circuit module 30 is configured as a main control module. The first circuit module 20 is primarily used to eliminate high-frequency interference and noise in the power grid, ensuring that electrical equipment operates normally without being affected by power fluctuations, and to provide frequency-adjustable electrical signals to drive the compressor and fan, achieving precise control over cooling or heating capacity and realizing the dual goals of energy saving and comfort. The second circuit module 30 is responsible for the operation management and control of the entire HVAC system. It typically integrates multiple functional modules such as a microprocessor, memory, signal processing, and communication interface. By receiving data, executing algorithm calculations, and outputting instructions, it achieves precise control over key components such as the compressor, fan, and electronic expansion valve, including functions such as temperature adjustment, mode switching, and fault diagnosis.

[0107] Please see Figure 16In some embodiments, the control box 10 includes a first side and a second side arranged opposite to each other. The mounting cavity includes a first cavity 110 and a second cavity 120, both located on the first side and spaced apart. The first circuit module 20 includes a drive board 22 disposed in the first cavity 110, and the second circuit module 30 includes a main control board 31 disposed in the second cavity 120. By separating the drive board 22 and the main control board 31 into cavities, interference between different circuit modules is reduced, and different power modules can be quickly identified and located, facilitating internal and external wiring of the control box 10. A wire bridge 40 is disposed in the first cavity 110 to ensure that the connecting wires in the first cavity 110 are laid out in an orderly manner, reducing the risk of wiring chaos and cross-interference.

[0108] Furthermore, the electrical control box 10 includes a heat dissipation structure 14, a first cover 15, and a second cover 16. The heat dissipation structure 14 is the main body of the electrical control box 10, and a portion of the heat dissipation structure 14 can be made of a material with good thermal conductivity, such as aluminum alloy. The heat dissipation structure 14 can be designed with internal heat dissipation channels. The heat dissipation channels can be straight or curved, used to guide the flow of the heat exchange medium, such as air or liquid, i.e., to remove heat through air cooling or water cooling. The first cover 15 and the second cover 16 are both cover-like structures with an opening on one side, and they are arranged along the length of the electrical control box 10. The first cover 15 and the heat dissipation structure 14 cooperate to form a first cavity 110, and the second cover 16 and the heat dissipation structure 14 cooperate to form a second cavity 120. Through the tight cooperation between the first cover 15 and the second cover 16 and the heat dissipation structure 14, external contaminants such as dust and moisture can be effectively prevented from entering the interior of the first cavity 110 and the second cavity 120.

[0109] The electronic control device 3 also includes an adapter plate 50. The heat dissipation structure 14 is also provided with a mounting groove, which is located between the first cavity 110 and the second cavity 120 and is connected to the first cavity 110 and the second cavity 120 respectively. The adapter plate 50 is provided with a first terminal block 51 and a second terminal block 52. The first terminal block 51 extends into the first cavity 110 and is electrically connected to the connecting wire, and then electrically connected to the drive board 22 through the connecting wire. The second terminal block 52 extends into the second cavity 120 and is electrically connected to the main control board 31, so as to realize the electrical connection between the main control board 31 and the drive board 22, and thus realize the signal transmission between the two.

[0110] Furthermore, the heat dissipation structure 14 includes a cold plate body 141 and a first enclosure 142 and a second enclosure 143 connected to the cold plate body 141 and located on the first side. The first enclosure 142 and the second enclosure 143 are spaced apart. A first cover 15 and the first enclosure 142 are combined to form a first cavity 110, and a second cover 16 and the second enclosure 143 are combined to form a second cavity 120. The cold plate body 141 is provided with heat exchange channels for the flow of heat exchange medium. In the thickness direction of the cold plate body 141, the first cavity 110 and the second cavity 120 are located outside the cold plate body 141. The cold plate body 141 can directly receive the heat generated by the drive plate 22 and the main control plate 31, or it can cool the gas inside the first cavity 110 and the second cavity 120, thereby dissipating heat from the drive plate 22 and the main control plate 31.

[0111] In some embodiments, the first circuit module 20 further includes a filter board 23, which and the driver board 22 are both disposed in the first cavity 110 and are integrated for easy installation.

[0112] In other embodiments, the first circuit module 20 further includes a filter board 23, which is disposed in two separate cavities from the drive board 22. Specifically, the control box 10 also includes a third cover 17, which cooperates with the heat dissipation structure 14 to form a third cavity 130. The third cavity 130 is located on the second side of the control box 10, and the third cavity 130 and the first cavity 110 are arranged opposite each other along the thickness direction of the heat dissipation structure 14. The filter board 23 is disposed in the third cavity 130 and is electrically connected to the drive board 22. That is, the drive board 22 and the filter board 23 are disposed on opposite sides of the heat dissipation structure 14, so that the space on both sides of the heat dissipation structure 14 can be utilized. For example, components with high heat generation can be disposed in the first cavity 110 on one side of the heat dissipation structure 14, and components with low heat generation can be disposed in the third cavity 130 on the other side of the heat dissipation structure 14, to prevent thermal interference between components with different heat generation in the same space.

[0113] In some embodiments, the electronic control device 3 further includes a power connector 60, which is used to connect an external power supply line to provide power to the electronic control device 3. In the first direction X, the power connector 60 is located on the side of the first cavity 110 away from the second cavity 120, and is mounted on the heat dissipation structure 14 and electrically connected to the filter board 23. The filter board 23 is then electrically connected to the main control board 31 of the second cavity 120, allowing external power to be transmitted sequentially to the first circuit module 20 and the second circuit module 30 via the power connector 60, providing power support for the normal operation of the first circuit module 20 and the second circuit module 30. The power connector 60 is electrically connected to the filter board 23, which receives the power signal transmitted from the power connector 60 and filters the power signal, for example, removing high-frequency noise and suppressing harmonics, before transmitting it to the drive board 22 and the main control board 31 via the connection structure.

[0114] The electrical control box 10 includes a fan wiring section 18 and a compressor wiring section 19, which are spaced apart on the same wall surface of the first enclosure 142. The fan wiring section 18 is used for connecting a fan plug, and the fan interface is electrically connected to the fan plug connected to the fan wiring section 18 to transmit fan control signals to the fan of the outdoor unit 1, thereby controlling the fan's operating state. The compressor wiring section 19 is used for connecting the compressor wire to the drive board 22, and the compressor drive module is electrically connected to the compressor wire to transmit compressor drive electrical signals to the compressor of the outdoor unit 1, thereby controlling the compressor's operating state.

[0115] It should be noted that, in this embodiment, the cable tray 410 of the cable bridge 40 is offset from the fan wiring section 18 and the compressor wiring section 19 to avoid interference between the control line and the fan plug and compressor line. A portion of the first cable bridge 401 is located near the fan wiring section 18. The first cable bridge 401 extends at least partially along the thickness direction of the control box 10 and bends after bypassing the fan wiring section 18 to avoid it. A portion of the second cable bridge 402 is located near the compressor wiring section 19. In the thickness direction of the control box 10, the main body 41 of the second cable bridge 402 is spaced apart from the compressor wiring section 19 to avoid it.

[0116] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0117] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wire crossing bridge, applied to an electronic control device, wherein the electronic control device is provided with mating holes, characterized in that, The cross-bridge includes: The main body portion, wherein a wire groove is formed therein; and A connecting part is connected to the side of the main body away from the slot of the wire passage and is used to insert into the mating hole to fix the position of the wire passage bridge in the electrical control device.

2. The cable bridge according to claim 1, characterized in that, The main body includes a bottom wall and two side walls connected to opposite sides of the bottom wall. The two side walls and the bottom wall enclose the cable groove, wherein the connecting part is connected to the bottom wall.

3. The cable bridge according to claim 2, characterized in that, The cable tray is used to accommodate the connecting wire, and the sidewall has a sidewall surface facing the adjacent sidewall; The cable bridge also includes a wire pressing part, which protrudes from the side wall surface of the side wall and is spaced apart from the bottom wall to prevent the connecting wire from moving along the depth direction of the cable groove.

4. The cable bridge according to claim 3, characterized in that, The pressure line portion includes: The pressure segment has a limiting surface for stopping the connecting wire; and An inlet section is connected to the side of the pressure line section away from the bottom wall. The inlet section faces the inlet surface of the adjacent side wall. From the direction of the inlet section toward the pressure line section, the inlet surface is an inclined surface that slopes toward the side of the adjacent side wall.

5. The cable bridge according to claim 3, characterized in that, The wire bridge includes multiple sets of wire pressing parts, which are spaced apart along the extension direction of the wire bridge. Each set of wire pressing parts includes two wire pressing parts disposed on two side walls. In this configuration, the two pressure sections of the same group are arranged opposite each other in a direction perpendicular to the extension direction of the wire bridge, or the two pressure sections of the same group are staggered in a direction perpendicular to the extension direction of the wire bridge.

6. The cable bridge according to claim 1, characterized in that, Both ends of the main body are provided with cable outlets along the extension direction of the cable bridge. The cable outlets are connected to the cable grooves and are used for connecting wires to pass through and extend out of the cable bridge.

7. The cable bridge according to any one of claims 1-6, characterized in that, The connecting part includes a plug-in body and a plurality of plug-in petals, each of the plug-in petals being connected to the plug-in body around the outer periphery of the plug-in body; The insertion flap is configured to undergo elastic deformation so that it extends into the mating hole and abuts against the inner wall of the mating hole.

8. The cable bridge according to claim 7, characterized in that, The plug-in flap has an elastic constriction end and a connecting end disposed opposite to each other along its extension direction. The connecting end is connected to the outer peripheral wall of the plug-in body. The elastic constriction end is spaced apart from the outer wall of the plug-in body along the circumference of the plug-in body, so that a deformable space is formed between the plug-in flap and the plug-in body. In this configuration, multiple plug-in segments are arranged sequentially at intervals along the insertion direction of the connecting portion, and the elastic constricted end of each plug-in segment is positioned closer to the main body relative to the connecting end; or, multiple plug-in segments are arranged sequentially at intervals along the circumference of the plug-in body, and each plug-in segment extends outward at an angle to the radial direction of the plug-in body.

9. The cable bridge according to claim 8, characterized in that, The plug-in body has a central axis; from the elastic constriction end toward the connection end, the outer wall surface of the plug-in petal is inclined toward the side where the central axis of the plug-in body is located, and the inclination angle is α, where α satisfies: 5°≤α≤90°.

10. The cable bridge according to claim 8, characterized in that, The plug-in flap has an opening groove extending from the connecting end to the elastic constriction end.

11. The cable bridge according to claim 7, characterized in that, The plug-in body has a central axis, and the plug-in body includes a connecting middle part and a guide top connected sequentially along the plugging direction of the connecting part, and a plurality of the plug-in petals are all connected to the connecting middle part; From the middle of the connection towards the top of the guide, the outer peripheral wall of the top of the guide is an inclined surface that is inclined toward the central axis of the plug body.

12. The cable bridge according to claim 7, characterized in that, The plug-in body includes a positioning root and a connecting middle part connected sequentially along the plugging direction of the connecting part, and multiple plug-in petals are all connected to the connecting middle part; The connecting part further includes a plurality of limiting ribs, which protrude from the outer wall surface of the positioning root. The plurality of limiting ribs are arranged circumferentially at intervals along the positioning root. The plurality of limiting ribs are adapted to extend into the mating hole and abut against the inner wall surface of the mating hole along the radial direction of the mating hole.

13. The cable bridge according to claim 12, characterized in that, The diameter of the mating hole is A, the maximum diameter of the insertion flap is R1, and the diameter of the circumscribed circle of the outer wall surface of the plurality of limiting ribs is R2, wherein A, R1, and R2 satisfy: R2 < A < R1.

14. The cable bridge according to claim 7, characterized in that, The connecting part further includes a positioning part connected to the insertion body. Along the insertion direction of the connecting part, the positioning part is in limiting contact with the wall surface of the mating hole of the electronic control device.

15. The cable bridge according to claim 7, characterized in that, The electronic control device includes a mating portion for defining the mating hole; The connecting part further includes an elastic arm, which is connected to the outer wall surface of the plug-in body. The elastic arm extends from the outer wall surface of the plug-in body to both radial sides of the plug-in body and is inclined towards the side where the plug-in lobe is located, so that the elastic arm can deform and clamp the mating part radially along the plug-in body.

16. The cable bridge according to any one of claims 1-6, characterized in that, The electronic control device includes a mating portion for defining the mating hole; The connecting portion extends along the depth direction of the wire groove and is adapted to be inserted and engaged with the mating portion along the depth direction of the wire groove.

17. The cable bridge according to any one of claims 1-6, characterized in that, The inner wall surface of the mating hole forms a limiting step; the connecting part includes a plug-in body and a plug-in petal that protrudes circumferentially from the outer wall surface of the plug-in body. During the process of the connecting part entering the mating hole along the insertion direction, the insertion petal is adapted to undergo elastic deformation in the circumferential direction of the insertion body to extend into the mating hole, and is adapted to undergo elastic recovery in the mating hole so that its end abuts against the limiting step of the mating hole.

18. The cable bridge according to claim 17, characterized in that, The inner wall of the mating hole is provided with threads, and the limiting step is formed between two adjacent turns of threads; The minor diameter of the thread in the mating hole is D1, the major diameter is D2, the maximum diameter of the insertion flap is R1, and the diameter of the insertion body is R3; the wire bridge satisfies at least one of the following conditions: (1) R3≤D1; (2) D1≤R1≤D2.

19. An electronic control device, characterized in that, include: An electrical control box has an internal mounting cavity, and the cavity wall of the mounting cavity is provided with the mating hole. The cable bridge as described in any one of claims 1-18, wherein the connecting portion of the cable bridge is inserted into the mating hole to fix the cable bridge to the electrical control box.

20. The electronic control device according to claim 19, characterized in that, The electronic control device includes a first circuit module and a second circuit module, which are spaced apart within the mounting cavity. The wire bridge extends along the edge of the first circuit module, and the connecting portion is inserted into the mating hole of the electrical control box to fix the wire bridge to the electrical control box; and A connecting wire is threaded through the wire groove and electrically connects the first circuit module and the second circuit module.

21. The electronic control device according to claim 20, characterized in that, The first circuit module includes two first circuit boards arranged side by side, and the electronic control device includes multiple wire bridges; One of the plurality of said cable bridges is a first cable bridge, which extends along the gap between the first circuit board and the electrical control box; and / or, One of the multiple cable bridges is a second cable bridge, which extends at least partially along the gap between two adjacent first circuit boards.

22. The electronic control device according to claim 19, characterized in that, The inner wall surface of the mating hole forms a limiting step, and a portion of the connecting part abuts against the limiting step in the insertion direction of the connecting part; The inner wall of the mating hole is threaded, and the limiting step is formed between two adjacent turns of the thread; or, The inner wall surface of the mating hole is provided with multiple limiting protrusions, and the side surface of the limiting protrusions and the inner wall surface of the mating hole together form the limiting step.

23. The electronic control device according to claim 19, characterized in that, The electrical control box includes a limiting protrusion plate protruding from the cavity wall of the mounting cavity; The cable bridge further includes a limiting part connected to the bottom surface of the main body. The limiting part includes two limiting walls spaced apart along a first direction, and a limiting cavity is formed between the main body and the two limiting walls. The limiting protrusion is disposed in the limiting cavity, and the main body rests against the limiting protrusion.

24. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, It includes a housing and an electronic control device as described in any one of claims 19-23, wherein the electronic control device is disposed within the housing.

25. The HVAC equipment according to claim 24, characterized in that, The housing is provided with an inspection port, and the electronic control device is located at the inspection port.

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