Pure electric automobile air conditioner three-in-one electric control box

Abstract

The utility model discloses a pure electric vehicle air conditioner three in one electric cabinet, include: casing assembly, inside is provided with the accommodation cavity, the accommodation cavity bottom is provided with the installation bottom plate, is used to install compressor drive unit, fan drive unit and control unit, heat dissipation subassembly, install on casing assembly, play the heat dissipation effect, bottom fixed plate, set up the heat dissipation subassembly downside, bottom fixed plate is provided with support fixed component. The utility model has the advantages of, will compressor drive unit, fan drive unit and control unit integration, reduce the wire harness interface, save the cost, the whole structure size is close, and the volume is small, and the installation is simple, and the whole machine installation space is saved.

Description

Technical Field

[0001] This utility model relates to the field of electrical control technology, specifically to a three-in-one electrical control box for air conditioning in pure electric vehicles. Background Technology

[0002] Traditional automotive air conditioning electronic control systems mostly adopt open mounting or sheet metal welding structures, which have the following problems:

[0003] Heat dissipation and protection deficiencies: The open design makes components prone to dust accumulation, moisture, or electromagnetic interference, affecting system stability. For example, insufficient heat dissipation in the air conditioning electronic control assembly of new energy vehicles may cause component overheating failures, while poor sealing of the sheet metal structure can easily lead to condensation seepage.

[0004] Inefficient space occupation and layout: The drive module and control module are used as separate units. For example, the compressor drive unit is an independent module and is packaged separately; the fan drive module is packaged separately; the control unit is packaged separately; the three are installed separately and connected by wiring harnesses, which results in large space occupation, many wiring harness interfaces, difficult layout, and difficulty in troubleshooting. It is difficult to meet the requirements of new energy vehicles for lightweight and compactness. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a three-in-one electrical control box for pure electric vehicle air conditioning, which integrates the compressor drive unit, fan drive unit and control unit, reduces wiring harness interfaces, saves costs, has a compact overall structure, small size, simple installation, and saves overall installation space.

[0006] Specifically, this utility model discloses a three-in-one electrical control box for air conditioning in pure electric vehicles, comprising:

[0007] The housing assembly has an internal receiving cavity, and a mounting base plate is provided at the bottom of the receiving cavity for mounting the compressor drive unit, the fan drive unit and the control unit.

[0008] A heat dissipation component is installed on the housing assembly and serves to dissipate heat.

[0009] A bottom fixing plate is disposed on the lower side of the heat dissipation assembly, and the bottom fixing plate is provided with a support fixing component.

[0010] The advantages of adopting the above technical solution are that it integrates the compressor drive unit, fan drive unit and control unit, reduces wiring harness interfaces, saves costs, has a compact overall structure, small size, simple installation, and saves installation space.

[0011] Furthermore, the housing assembly includes a lower plate, a side plate assembly, and a cover plate assembly. The side plate assembly includes a front side plate, a rear side plate, and two side plates. The front side plate is provided with multiple wire harness through holes. The two side plates are symmetrically arranged and have protrusions. The cover plate assembly is detachably installed with the side plate assembly.

[0012] The advantages of adopting the above technical solution are that the combination of the lower plate, side plate assembly and cover plate assembly forms a closed cavity, which can effectively isolate external dust, moisture and electromagnetic interference, and improve the protection performance of the electronic control assembly; the wiring harness through holes on the front side plate facilitate the connection of wiring harnesses of each unit to external equipment, and the protruding design of the two side plates can increase the height of the housing, while providing additional installation space or heat dissipation gaps for internal components; the cover plate assembly adopts a detachable installation method, which facilitates the inspection and maintenance of internal units.

[0013] Furthermore, the heat dissipation component includes a heat sink and a cooling fan. The heat sink is fixedly installed at the bottom of the housing assembly, and a fixing plate is installed at the bottom of the housing assembly. The cooling fan is installed on the fixing plate, and the fixing plate is arranged along a direction perpendicular to the length of the heat sink.

[0014] The advantage of adopting the above technical solution is that the heat sink is in direct contact with the bottom of the housing assembly, which can quickly conduct the heat generated by each unit in the housing cavity to the outside. The fixing plate is set along the length of the heat sink, so that the airflow direction of the cooling fan and the direction of the heat sink fins form efficient convection, which accelerates the airflow on the surface of the heat sink and significantly improves the heat dissipation efficiency.

[0015] Furthermore, the mounting base plate is provided with multiple partition plates, which divide the mounting base plate into a first mounting area, a second mounting area, and a third mounting area. The first mounting area is used to install the compressor drive unit, the second mounting area is used to install the fan drive unit, and the third mounting area is used to install the control unit. The partition plates are provided with through holes for passing wire harnesses.

[0016] The advantages of adopting the above technical solution are that the partition plate orderly divides the mounting base into three independent installation areas, which physically isolates the compressor drive unit, fan control unit, and control unit, effectively avoiding mutual interference from electromagnetic interference generated by different units during operation and improving the stability of system operation; the partitioned layout makes the installation position of each unit clear, which facilitates quick positioning and installation during production assembly, and also provides convenience for unit identification and disassembly during subsequent maintenance; the through holes opened on the partition plate provide an orderly channel for the wiring harness connection between each unit, avoiding messy crossover of wiring harnesses, reducing the risk of short circuits caused by wiring harness entanglement, and improving the standardization and safety of overall wiring.

[0017] Furthermore, the mounting base plate is provided with multiple connectors, each connector having a T-shaped groove in which a movable nut is placed, and each connector having multiple mounting holes opened along the width direction.

[0018] The advantages of adopting the above technical solution are that the T-slot and the movable nut cooperate to make the installation flexible according to the actual installation needs, without the need to pre-set a large number of fixing screw holes on the mounting base plate, which enhances the adaptability to the installation position of different specifications of units. The fixing holes are set for passing through cable ties, etc., to facilitate the fixing of connecting wires, without the need to install separate cable tie fixing parts.

[0019] Furthermore, the support and fixing assembly includes: a bottom support plate, a floating plate, and a spring. The bottom support plate is provided with a mounting groove, and a support column is provided in the mounting groove. Multiple guide columns are provided on the lower side of the floating plate. Both the support column and the guide column have receiving grooves to accommodate the spring. The end of the guide column extends into the support column, and the guide column floats up and down along the support column.

[0020] The advantage of adopting the above technical solution is that an elastic buffer structure is formed by the combination of bottom support plate, floating plate and spring. When the electronic control assembly is subjected to bumps or vibrations during vehicle operation, the floating plate can float up and down along the support column through the guide column. The spring is compressed or stretched in the receiving groove of the support column and the guide column. The elastic deformation of the spring absorbs the external impact force and effectively reduces the impact of vibration on the internal precision components.

[0021] Furthermore, a limit block is provided on the inner wall of the mounting groove, and a buffer block is installed at the bottom of the limit block.

[0022] The advantage of adopting the above technical solution is that the limiting block can effectively limit the up and down floating stroke of the floating plate, prevent the spring from failing due to excessive compression or stretching caused by excessive floating amplitude, and at the same time prevent the guide column from coming out of the support column, ensuring the structural stability of the support and fixing components, reducing vibration, and improving the vibration damping effect of the overall structure.

[0023] Furthermore, the side panel assembly is provided with multiple mounting pieces, each mounting piece including a main body and a protruding part, the protruding parts being symmetrically arranged.

[0024] The advantage of adopting the above technical solution is that the mounting plate effectively utilizes the space on the side of the housing assembly, which facilitates the fixing of the wiring harness and the installation of other components.

[0025] Furthermore, the mounting base plate is provided with multiple studs.

[0026] The advantage of adopting the above technical solution is that the stud can be directly used as a fixed support point for the installation of internal units without the need for additional welding or brackets, which facilitates installation and ensures that the unit will not move. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0028] Figure 1 This is an isometric drawing of the overall structure of the three-in-one electrical control box for air conditioning in a pure electric vehicle.

[0029] Figure 2 This is a structural diagram of the bottom heat dissipation component of this utility model.

[0030] Figure 3 This is a structural diagram of the cover plate removal assembly of this utility model.

[0031] Figure 4 This is a structural diagram of the mounting plate of this utility model.

[0032] Figure 5 This is a cross-sectional view of the support and fixing component of this utility model.

[0033] Figure 6 This is a structural diagram of the connector of this utility model.

[0034] The reference numerals used in the attached figures are as follows:

[0035] Mounting base plate 1; First mounting area 14; Second mounting area 15; Third mounting area 16; Stud 17; Heat dissipation assembly 2; Heat sink 21; Cooling fan 22; Bottom fixing plate 3; Front side plate 4; Rear side plate 41; Side plates 42; Wiring harness through hole 43; Protrusion 44; Mounting piece 45; Main body 46; Extension 47; Cover plate assembly 5; Fixing plate 6; Divider plate 7; Connector 8; T-slot 81; Mounting hole 82; Bottom support plate 9; Floating plate 91; Spring 92; Support column 93; Guide column 94; Limiting block 95; Buffer block 96. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings.

[0037] like Figure 1-6 As shown, this utility model discloses a three-in-one electrical control box for air conditioning in pure electric vehicles, comprising:

[0038] The housing assembly has an internal receiving cavity, and a mounting base plate 1 is provided at the bottom of the receiving cavity for mounting the compressor drive unit, the fan drive unit and the control unit. The compressor drive unit, the fan drive unit and the control unit are all electronic control components, which are existing technologies.

[0039] Heat dissipation component 2 is installed on the housing assembly and serves to dissipate heat.

[0040] The bottom fixing plate 3 is disposed on the lower side of the heat dissipation component 2, and the bottom fixing plate 3 is provided with a support fixing component.

[0041] The advantages of adopting the above technical solution are that it integrates the compressor drive unit, fan drive unit and control unit, reduces wiring harness interfaces, saves costs, has a compact overall structure, small size, simple installation, and saves installation space.

[0042] In some embodiments, the housing assembly includes a lower plate, side plate assemblies, and a cover plate assembly 5. The side plate assembly includes a front side plate 4, a rear side plate 41, and two side plates 42. The front side plate 4 has multiple wiring harness through holes 43. The two side plates 42 are symmetrically arranged and have protrusions 44. The cover plate assembly 5 is detachably installed with the side plate assembly. The lower plate and side plate assembly can be integrally formed by sheet metal bending or can be separate parts installed by screws. The side plate assembly is integrally formed by sheet metal bending.

[0043] The cover plate assembly 5 is divided into a first cover plate, an inclined cover plate, and a second cover plate. The edges of the first cover plate, the inclined cover plate, and the second cover plate all have bent portions. The bent portions are fixed to the side plate assembly by screws, so that the entire cover plate assembly 5 can be disassembled. The first cover plate is connected to the protrusions 44 of the two side plates, so that the housing assembly has a high installation space for installing high workpieces and reducing the volume of the entire electronic control assembly.

[0044] A rubber protective component is installed at the wire harness through hole 43 to provide protection.

[0045] In some embodiments, the heat dissipation assembly 2 includes a heat sink 21 and a cooling fan 22. The heat sink 21 is fixedly installed at the bottom of the housing assembly, and a fixing plate 6 is installed at the bottom of the housing assembly. The fixing plate 6 is fixed by welding or screws. The cooling fan 22 is installed on the fixing plate 6. There are multiple cooling fans 22. The fixing plate 6 is arranged along the direction perpendicular to the length of the heat sink 21. There are multiple heat sinks 21 arranged side by side. There is a heat dissipation channel between adjacent heat sinks 21. The cooling fan 22 faces the outside of the heat dissipation channel to accelerate the heat dissipation of the heat dissipation channel and accelerate the air flow on the surface of the heat sink 21, which significantly improves the heat dissipation efficiency.

[0046] In some implementations, the mounting base plate 1 is provided with multiple partition plates 7, which divide the mounting base plate 1 into a first mounting area 14, a second mounting area 15, and a third mounting area 16. The first mounting area 14 is used to install the compressor drive unit, the second mounting area 15 is used to install the fan control unit, and the third mounting area 16 is used to install the control unit. The partition plates 7 are provided with through holes for passing wire harnesses. The partition plates 7 are detachable and are made of anti-static shielding plates, and the specific material is selected as needed.

[0047] The partition plate 7 divides the mounting base plate 1 into three independent installation areas, physically isolating the compressor drive unit, fan control unit, and control unit. This effectively prevents electromagnetic interference from different units from affecting each other during operation, improving the stability of the system. The partitioned layout clearly defines the installation location of each unit, facilitating rapid positioning and installation during production assembly, and also providing convenience for unit identification and disassembly during subsequent maintenance. The through holes on the partition plate 7 provide an orderly channel for the wiring harness connection between the units, avoiding messy and cross-shaped wiring harnesses, reducing the risk of short circuits caused by wiring harness tangling, and improving the standardization and safety of the overall wiring.

[0048] Furthermore, the mounting base plate 1 is provided with multiple connectors 8, each connector 8 having a T-slot 81 in which a movable nut is placed. Each connector 8 has multiple mounting holes 82 extending along its width. The connectors 8 are fixed to the mounting base plate 1 by locking. Multiple horizontally parallel connectors 8 can be provided, and multiple vertical connectors 8 can be provided between the connectors 8, adapting to different installation needs. The installation position can be flexibly adjusted according to actual installation requirements, eliminating the need for pre-setting numerous fixing screw holes on the mounting base plate 1. This enhances the adaptability to the installation positions of different unit specifications. The fixing holes are used for passing cable ties, etc., facilitating the fixing of connecting wires. No separate cable tie fixing component is required, making it convenient to replace workpieces and connecting wire harnesses.

[0049] Furthermore, the mounting base plate 1 is provided with multiple studs 17, which are welded and fixed to the bottom of the mounting base plate 1. For heavy workpieces, the studs 17 are used to connect and prevent movement.

[0050] Furthermore, the side panel assembly is provided with multiple mounting pieces 45, each mounting piece 45 including a main body 46 and a protruding part 47. The protruding parts 47 are symmetrically arranged. The main body 46 is locked and fixed to the side panel assembly, and the protruding parts 47 extend to both sides, leaving a certain gap between them and the side panel assembly.

[0051] This gap can be used to accommodate wire harnesses or small fixing clips, allowing the wire harnesses to be arranged in an orderly manner along the side panel assembly and secured by the protrusion 47, preventing the wire harnesses from hanging or being scattered outside the housing assembly, further improving the overall structure's neatness and space utilization. It can also be used to hold some air switches, relays, etc.

[0052] In some implementations, the support and fixing assembly includes: a bottom support plate 9, a floating plate 91, and a spring 92. The bottom support plate 9 is provided with a mounting groove, and a support column 93 is provided in the mounting groove. Multiple guide columns 94 are provided on the lower side of the floating plate 91. Both the support column 93 and the guide column 94 have receiving grooves to accommodate the spring 92. The end of the guide column 94 extends into the support column 93 and floats up and down along the support column 93. The bottom of the spring 92 contacts the support column 93 and the top contacts the guide column 94, forming an elastic buffer structure to effectively reduce vibration. The bottom support plate 9 has through holes on both sides for easy locking and fixing with screws. The floating plate 91 is locked and fixed to the bottom fixing plate 3. A connecting block can also be provided between the floating plate 91 and the bottom fixing plate for easy connection. It can be installed at the four corners of the bottom fixing plate 3 or in other positions, depending on the actual use requirements.

[0053] Furthermore, a limit block 95 is provided on the inner wall of the mounting groove, and a buffer block 96 is installed at the bottom of the limit block 95. The limit block 95 is provided with a threaded hole, and a through hole is provided on the side of the bottom support plate 9. The limit block 95 is locked with a screw through it. The limit blocks 95 are installed symmetrically to limit the floating position of the floating plate 91 and prevent the floating plate 91 from falling out of the mounting groove. The buffer block 96 is a rubber block and is fixed on the lower side of the limit block 95 to effectively reduce impact, extend the service life of the entire device, and improve the vibration damping effect.

[0054] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A three-in-one electrical control box for air conditioning in a pure electric vehicle, characterized in that, include: The housing assembly has an internal cavity, and a mounting base plate (1) is provided at the bottom of the cavity for mounting the compressor drive unit, the fan drive unit and the control unit. The heat dissipation component (2) is installed on the housing assembly and serves to dissipate heat. A bottom fixing plate (3) is disposed on the lower side of the heat dissipation assembly (2), and the bottom fixing plate (3) is provided with a support fixing assembly.

2. The three-in-one electrical control box for pure electric vehicle air conditioning according to claim 1, characterized in that, The housing assembly includes a lower plate, a side plate assembly, and a cover plate assembly (5). The side plate assembly includes a front side plate (4), a rear side plate (41), and two side plates (42). The front side plate (4) is provided with a plurality of wire harness through holes (43). The two side plates (42) are symmetrically arranged and have protrusions (44). The cover plate assembly (5) is detachably installed with the side plate assembly.

3. The three-in-one electrical control box for pure electric vehicle air conditioning according to claim 1, characterized in that, The heat dissipation component (2) includes a heat sink (21) and a cooling fan (22). The heat sink (21) is fixedly installed at the bottom of the housing assembly. A fixing plate (6) is installed at the bottom of the housing assembly. The cooling fan (22) is installed on the fixing plate (6). The fixing plate (6) is arranged along the direction perpendicular to the length of the heat sink (21).

4. The three-in-one electrical control box for pure electric vehicle air conditioning according to claim 1, characterized in that, The mounting base plate (1) is provided with multiple partition plates (7), which divide the mounting base plate (1) into a first mounting area (14), a second mounting area (15) and a third mounting area (16). The first mounting area (14) is used to install the compressor drive unit, the second mounting area (15) is used to install the fan drive unit, and the third mounting area (16) is used to install the control unit. The partition plate (7) is provided with through holes for wire harnesses to pass through.

5. The three-in-one electrical control box for pure electric vehicle air conditioning according to claim 4, characterized in that, The mounting base plate (1) is provided with a plurality of connectors (8), each connector (8) is provided with a T-shaped groove (81), a movable nut is placed in the T-shaped groove (81), and each connector (8) is provided with a plurality of mounting holes (82) opened along the width direction.

6. The three-in-one electrical control box for pure electric vehicle air conditioning according to claim 1, characterized in that, The supporting and fixing assembly includes: a bottom support plate (9), a floating plate (91) and a spring (92). The bottom support plate (9) is provided with a mounting groove, and a support column (93) is provided in the mounting groove. A plurality of guide columns (94) are provided on the lower side of the floating plate (91). Both the support column (93) and the guide column (94) have receiving grooves to accommodate the spring (92). The end of the guide column (94) extends into the support column (93), and the guide column (94) floats up and down along the support column (93).

7. The three-in-one electrical control box for pure electric vehicle air conditioning according to claim 6, characterized in that, The inner wall of the mounting groove is provided with a limiting block (95), and a buffer block (96) is installed at the bottom of the limiting block (95).

8. The three-in-one electrical control box for pure electric vehicle air conditioning according to claim 2, characterized in that, The side panel assembly is provided with a plurality of mounting pieces (45), each mounting piece (45) including a main body (46) and a protrusion (47), the protrusions (47) being symmetrically arranged.

9. The three-in-one electrical control box for air conditioning in pure electric vehicles according to claim 1, characterized in that, The mounting base plate (1) is provided with multiple studs (17).

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