CN213280235U - Electric control device, compressor, air conditioning equipment and vehicle - Google Patents

Abstract

The application belongs to the technical field of compression equipment, and particularly relates to an electric control device, a compressor, air conditioning equipment and a vehicle. The electric control device comprises a circuit component, the circuit component comprises a PCB, a high-voltage circuit and a low-voltage circuit, the high-voltage circuit and the low-voltage circuit are arranged on the PCB, the electric control device further comprises a shielding cover, the shielding cover is arranged on the low-voltage circuit and used for shielding electromagnetic waves emitted from the high-voltage circuit to the low-voltage circuit, and the shielding cover is a metal cover or a metal composite material cover. The low-voltage circuit is covered with the shielding cover, so that the improvement of the overall electromagnetic compatibility of the electric control device is simply and reliably realized, the low-voltage circuit is covered with the shielding cover, the realization cost of the shielding cover is low, the technical difficulty is small, the electromagnetic compatibility improvement cost of the electric control device is effectively controlled, the overall electromagnetic compatibility of the compressor is effectively improved, the manufacturing cost of the compressor is saved, and the manufacturing difficulty of the compressor is simplified.

Description

Electric control device, compressor, air conditioning equipment and vehicle

Technical Field

The application belongs to the technical field of compression equipment, and particularly relates to an electric control device, a compressor, air conditioning equipment and a vehicle.

Background

With the improvement of technology and the improvement of environmental awareness, vehicles such as electric vehicles have gradually begun to be popularized and applied due to the characteristics of high energy utilization rate and no harmful exhaust emission. Compared with the traditional fuel vehicle, the fuel vehicle as a traffic participant on a complex road has more important safety, and especially has higher requirements on the electromagnetic compatibility of electrical components in the vehicle.

The compressor is an important part of a vehicle such as an electric automobile, and generates a large electromagnetic field during operation, which has a great influence on other electrical components in the vehicle. The first means for improving the electromagnetic compatibility of the compressor is to increase the inductance and capacitance of the electric control part of the compressor, however, the internal space of the compressor is usually very compact, and the implementation of increasing the inductance and capacitance is poor. The second approach is to coat the shielding layer on the high-voltage connection line of the compressor, which can effectively improve the electromagnetic compatibility, but will also lead to the overall manufacturing cost of the compressor rising.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide an electric control device, a compressor, an air conditioning device and a vehicle, and the technical problem that improvement of electromagnetic compatibility and control of manufacturing cost of the compressor are difficult to be considered in the prior art is solved.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

in a first aspect: the application provides an electrically controlled device is applied to the compressor, electrically controlled device includes circuit assembly, circuit assembly include the PCB board, set up in high-voltage circuit and low-voltage circuit on the PCB board, electrically controlled device still includes the shield cover, the shield cover is located low-voltage circuit is used for shielding high-voltage circuit is to the electromagnetic wave of low-voltage circuit transmission, the shield cover is metal covering or metal composite cover.

Optionally, the shielding case includes a cover top plate and a side wall plate, an upper side edge of the side wall plate is connected with an outer peripheral edge of the cover top plate, a lower side edge of the side wall plate is arranged on the PCB, and the low-voltage circuit is located in a shielding space formed by the cover top plate and the side wall plate.

Optionally, the side wall plate is disposed vertically or obliquely toward the outer side with respect to the cover top plate.

Optionally, the cover top plate and the side coaming are integrally formed.

Optionally, the upper side edge of the side panel is bonded to the peripheral edge of the cover top panel.

Optionally, the lower side edge of the side enclosing plate is provided with a plurality of leg pieces, and the leg pieces are welded and fixed on the PCB board.

Optionally, the thickness of the cover top plate and the thickness of the side panel are both 0.1mm to 2 mm.

Optionally, the cover top plate and the side wall plate are both copper plate pieces or silicon steel pieces.

Optionally, the side coaming is provided with an opening.

Compared with the prior art, the electric control device provided by the embodiment of the application has the following beneficial effects at least: the electric control device provided by the embodiment of the application is applied to the compressor. The high-voltage circuit and the low-voltage circuit of the circuit component of the electric control device are arranged on the PCB, the high-voltage circuit and the low-voltage circuit are separated by setting the separation distance, and the shielding cover is covered on the low-voltage circuit, so that the space radiation interference of the electromagnetic waves emitted by the high-voltage circuit on the low-voltage circuit is obviously reduced, and the interference influence of the high-voltage circuit on the low-voltage circuit is further reduced. Therefore, the shielding cover made of metal or metal composite material is arranged on the low-voltage circuit, so that the improvement of the overall electromagnetic compatibility of the electric control device is simply and reliably realized, and the realization cost of arranging the shielding cover on the low-voltage circuit is low, the technical difficulty is small, and the improvement cost of the electromagnetic compatibility of the electric control device is effectively controlled. Therefore, the electric control device provided by the embodiment of the application has the advantages that the isolation distance is formed between the high-voltage circuit and the low-voltage circuit, and the shielding cover is covered on the low-voltage circuit, so that the electromagnetic compatibility of a compressor of the electric control device can be effectively improved, the integral manufacturing cost of the electric control device is saved, the integral electromagnetic compatibility of the compressor with the electric control device is improved, the integral manufacturing cost of the compressor with the electric control device is saved, and the integral manufacturing difficulty of the compressor is reduced.

In a second aspect: the application provides a compressor, which comprises the electric control device.

Compared with the prior art, the compressor provided by the embodiment of the application has the following beneficial effects: the compressor provided by the embodiment of the application comprises the electric control device, and the electric control device effectively improves the electromagnetic compatibility of the compressor by covering the low-voltage circuit with the shielding cover, so that the overall electromagnetic compatibility of the compressor is improved, and the overall manufacturing cost of the compressor is saved.

In a third aspect: the application provides an air conditioning device, which comprises the compressor.

Compared with the prior art, the air conditioning equipment provided by the embodiment of the application at least has the following beneficial effects: the air conditioning equipment provided by the embodiment of the application comprises the compressor, and the compressor can save the manufacturing cost while having better overall electromagnetic compatibility, so that the air conditioning equipment with the compressor can run more stably, and the overall manufacturing cost of the air conditioning equipment is reduced.

In a fourth aspect: the application provides a vehicle, which comprises the air conditioning equipment.

Compared with the prior art, the vehicle provided by the embodiment of the application has the following beneficial effects at least: the vehicle provided by the embodiment of the application comprises the air conditioning equipment, and the air conditioning equipment has better working stability, so that the air conditioning equipment can stably work in the vehicle for a long time, and the user product experience of the vehicle with the air conditioning equipment is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an electric control device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another angle of the electric control device provided in the embodiment of the present application;

fig. 3 is a schematic structural diagram of a shielding case of an electronic control device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of another angle of a shield case of an electronic control device according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

10-electric control device 11-PCB 12-circuit assembly

13-high voltage circuit 14-low voltage circuit 15-shielding case

16-cover top plate 17-side coaming plate 18-shielding space

19-fillet-member 20-opening.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-4 are exemplary and intended to be used to illustrate the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 to 3, an embodiment of the application provides an electric control device, a compressor, an air conditioning device and a vehicle. The electric control device 10 can be applied to a compressor and is used for controlling a handle to drive a power component in the compressor to operate. The compressor can be applied to air-conditioning equipment, and the air-conditioning equipment can be vehicle-mounted air-conditioning equipment applied to vehicles such as cars and trucks.

The following explains the electric control device 10 provided in the embodiment of the present application as follows: the electronic control device 10 provided by the embodiment of the application specifically includes a PCB 11, a circuit assembly 12, and a shielding case 15. Wherein, when the electric control device 10 is applied to the compressor, the PCB board 11 of the electric control device 10 can be mounted on the shell of the compressor. Specifically, the compressor casing can be assembled on the compressor casing through screws or the like, or fixed on the compressor casing through adhesives or the like, or embedded in a corresponding position of the compressor casing.

The circuit assembly 12 disposed on the PCB 11 is electrically connected to a driving device of the compressor, and is used to control the driving device to drive a power component such as a crankshaft of the compressor to rotate in the compressor, so as to implement the operation of the compressor.

Specifically, the circuit assembly 12 includes a high-voltage circuit 13 and a low-voltage circuit 14. The high-voltage circuit 13 and the low-voltage circuit 14 are both arranged on the PCB 11, an isolation distance is formed between the high-voltage circuit 13 and the low-voltage circuit 14, and the shielding cover 15 covers the low-voltage circuit 14, so that the shielding cover 15 can block electromagnetic radiation generated by the high-voltage circuit 13, and can be effectively used for shielding electromagnetic waves emitted from the high-voltage circuit 13 to the low-voltage circuit 14, and the shielding cover is a metal cover or a metal composite material cover.

The electric control device 10 provided in the embodiment is further described as follows: the electric control device 10 provided by the embodiment of the application is applied to a compressor, for the electric control device 10, the high-voltage circuit 13 and the low-voltage circuit 14 are arranged in a separated mode, the coupling interference between the high-voltage circuit 13 and the low-voltage circuit 14 can be effectively reduced, the shielding cover 15 is covered on the low-voltage circuit 14, so that the space radiation interference of electromagnetic waves emitted by the high-voltage circuit 13 on the low-voltage circuit 14 is remarkably reduced, and the interference influence of the high-voltage circuit 13 on the low-voltage circuit 14 is further reduced. Therefore, the high-voltage circuit 13 and the low-voltage circuit 14 are arranged in a separated mode, and the shielding cover 15 made of metal or metal composite material is arranged on the low-voltage circuit 14 in a covering mode, so that the improvement of the overall electromagnetic compatibility of the electric control device 10 is simply and reliably achieved, and the cost for achieving the shielding cover 15 on the low-voltage circuit 14 is low, the technical difficulty is small, and the cost for improving the electromagnetic compatibility of the electric control device 10 is effectively controlled. Thus, the electric control device 10 provided in the embodiment of the present application forms an isolation distance between the high-voltage circuit 13 and the low-voltage circuit 14, and the shielding cover 15 is covered on the low-voltage circuit 14, so that the electromagnetic compatibility of the electric control device can be effectively improved, and at the same time, the overall manufacturing cost of the electric control device is also saved, thereby also improving the overall electromagnetic compatibility of the compressor having the electric control device 10, and at the same time, the overall manufacturing cost of the compressor having the electric control device 10 is also saved, and the overall manufacturing difficulty of the compressor is reduced.

Alternatively, the high-voltage circuit 13 may be an overcurrent protection module, an overheat protection module, a GTO (Gate Turn-Off Thyristor) or IGBT (Insulated Gate Bipolar Thyristor) driving module, etc. of the circuit component 12. The low voltage circuit 14 may be a power module, a power board module, a ground module, etc.

Alternatively, the power board module and the ground module in the low voltage circuit 13 may be further processed by copper plating separately and disposed away from the high voltage circuit 14, so that there is no overlap between the power board module and the ground module in the low voltage circuit 13 with respect to the high voltage circuit 14 in a direction perpendicular to the PCB 11, which improves the noise phenomenon of the high voltage circuit 14.

In other embodiments of the present application, as shown in fig. 3 and 4, the shielding case 15 includes a top cover plate 16 and a side cover plate 17, an upper side edge of the side cover plate 17 is connected to an outer peripheral edge of the top cover plate 16, a lower side edge of the side cover plate 17 is disposed on the PCB 11, and the low-voltage circuit 14 is located in a shielding space 18 formed by the top cover plate 16 and the side cover plate 17. Specifically, the side wall plate 17 and the cover top plate 16 are jointly surrounded to form a shielding space 18, so that the cover top plate 16 covers the top of the low-voltage circuit 14, and the side wall plate 17 is surrounded on the periphery of the side portion of the low-voltage circuit 14, so that the low-voltage circuit 14 can be shielded and protected in a three-dimensional space in an all-dimensional manner, so that when electromagnetic waves emitted by the high-voltage circuit 13 reach the position of the low-voltage circuit 14, the electromagnetic waves can flow through the low-voltage circuit 14 along the side wall plate 17 and the cover top plate 16, effective shielding cannot be achieved, the low-voltage circuit 14 in the shielding space 18 is prevented from being interfered, and the electromagnetic compatibility of the electric control device 10 is effectively.

In other embodiments of the present application, as shown in fig. 3 and 4, the side enclosures 17 are disposed vertically or obliquely toward the outside with respect to the cover top panel 16. In the present embodiment, the outer side refers to the outer peripheral direction of the shield case 15. The side coaming 17 is arranged perpendicularly relative to the cover top plate 16, namely the cross section of the shielding cover 15 along the thickness direction of the PCB 11 is rectangular, so that the whole structure of the shielding cover 15 is stable, the structural strength of the shielding cover 15 is improved, and when the shielding cover 15 provides electromagnetic shielding protection for the low-voltage circuit 14, reliable structural protection can be provided for the low-voltage circuit 14.

And the side wall plate 17 is disposed obliquely outward with respect to the cover top plate 16, that is, the cross section of the shield cover 15 in the thickness direction of the PCB board 11 is trapezoidal. And when the cross section of the shielding cover 15 along the thickness direction of the PCB 11 is trapezoidal, the included angle between the side wall plate 17 and the cover top plate 16 can be greater than 90 degrees and less than or equal to 115 degrees, the side wall plate 17 is obliquely arranged, so that the included angle between the side wall plate 17 and the cover top plate 16 is greater than 90 degrees and less than or equal to 115 degrees, and the side wall plate 17 can be obliquely arranged towards the outer side of the shielding space 18, so that the shielding cover 15 forms a structure with a trapezoidal cross section, thereby on one hand, the configuration of the shielding cover is more stable, on the other hand, the shielding space 18 formed in the shielding cover is also increased, and further, the shielding cover 15 can meet the requirement of protecting the low-voltage circuit 14 with a.

In other embodiments of the present application, the contour of the shielding case 15 is similar to the contour of the low-voltage circuit 14, so that on one hand, the overall space occupancy rate of the electronic control device can be optimized by profiling the shielding case 15 relative to the low-voltage circuit 14, so that the overall volume of the electronic control device is more compact, and on the other hand, the shielding case 15 can also reduce the occupation of the space of the PCB board 11 as much as possible to reserve the assembly space for other electrical components on the PCB board 11.

In other embodiments of the present application, the cover top panel 16 and the side gusset 17 are integrally formed. Specifically, the cover top plate 16 and the side wall plate 17 are integrally formed, so that the production cost of the shielding cover 15 can be effectively reduced, meanwhile, the shielding cover 15 can be rapidly manufactured, and the production efficiency of the shielding cover 15 is improved.

Meanwhile, cracks are not easy to generate at the connecting part of the cover top plate 16 and the side wall plate 17 which are manufactured by the integral forming process, so that the cracks are not easy to generate when the shielding cover 15 works in a vibration environment, and the quality reliability of the shielding cover 15 in a long-term use process is ensured.

Alternatively, the cover top plate 16 and the side wall plates 17 are specifically integrally formed by stamping, that is, when the shielding case 15 is manufactured, the outlines of the cover top plate 16 and the side wall plates 17 are firstly formed on the base plate, then the base plate is formed into the three-dimensional shielding case 15 by using a stamping machine and a stamping die in a stamping manner, and in the process, the side wall plates 17 are bent relative to the cover top plate 16 to form the shielding case 15.

Alternatively, the side gusset 17 and the cover top plate 16 may be integrally cast, which may further reduce the manufacturing cost of the shield cover 15, and particularly, may form the shield cover 15 having a complicated configuration at low cost and high efficiency, and may further reduce the manufacturing cost of the shield cover 15. Of course, the side wall plates 17 and the cover top plate 16 may be formed by sand casting, or may be formed by various casting methods such as die casting, lost foam casting, and vacuum casting.

In other embodiments of the present application, as shown in FIG. 3, the upper side edges of the side enclosures 17 are bonded to the peripheral edges of the cover top panel. Specifically, when the shielding case 15 is formed, the cover top plate 16 and the side wall plates 17 can be formed separately, and then the side wall plates 17 and the cover top plate 16 can be bonded by using a bonding material such as a super glue, so that on one hand, the connection stability of the cover top plate 16 and the side wall plates 17 is ensured, and on the other hand, the cover top plate 16 and the side wall plates 17 can be made of different metals, thereby improving the flexibility of manufacturing and material selection of the shielding case 15.

Alternatively, the peripheral edge of the top cover plate 16 may be formed on the side coaming 17 directly by bending manually or by machine, so that when the shielding cover 15 is processed, only an integral blank of the top cover plate 16 and the side coaming 17 is processed, and then the side coaming 17 is bent at the corresponding position of the blank, so that the manufacturing and forming of the shielding cover 15 become simple and reliable, and the manufacturing cost and the material consumption of the shielding cover 15 can be saved.

Optionally, the side coaming 17 and the cover top plate 16 can be detachably connected through a connecting piece such as a screw or a buckle, so that the side coaming 17 and the cover top plate 16 can be detachably connected on one hand, and the side coaming 17 or the cover top plate 16 can be conveniently detached, replaced and maintained. On the other hand, the side coaming 17 and the cover top plate 16 can be made of different materials, so that the flexibility of material selection in manufacturing of the shielding cover 15 is improved.

In other embodiments of the present application, as shown in fig. 3 and 4, the lower edge of the side enclosure 17 has a plurality of solder tails 19, and the solder tails 19 are soldered to the PCB 11. Specifically, by arranging the soldering foot piece 19 at the lower side edge of the side wall plate 17, the shielding case 15 can be directly soldered on the PCB 11 when being assembled with respect to the PCB 11, which is simple and convenient, so that the soldering installation of the shielding case 15 can be realized when the low-voltage circuit 14 is soldered on the PCB 11, thereby improving the overall manufacturing efficiency of the electronic control device 10.

Optionally, the number of the fillet members 19 is plural, and the fillet members are formed at the lower side edge of the side wall 17 at equal intervals, so that the installation stability of the shielding cover 15 relative to the PCB 11 can be ensured, and further, the shielding cover 15 can be still stably installed on the PCB 11 in a vibration environment for a long time, and thus, the long-term service reliability of the electronic control device 10 is also effectively improved.

In other embodiments of the present application, the thickness of the cover top panel 16 and the thickness of the side gusset 17 are both 0.1mm to 2 mm. Specifically, the thickness of the shield case 15 is selected in consideration of the skin effect of the electromagnetic wave with respect to the penetration depth of the electromagnetic wave with respect to the shield case 15. The thickness of the shield 15 should satisfy the following skin effect formula:

where Δ represents the penetration depth of the electromagnetic waves, k represents the temperature coefficient of electrical conductivity of the material of the shield can 15, μ represents the magnetic permeability of the shield can 15, and ω represents the angular frequency of the electromagnetic waves. From the above formula, it can be determined that the minimum thickness of the shield can 15 should be 0.1mm or more, and the maximum thickness of the shield can 15 can be less than or equal to 2mm considering that the shield can 15 satisfies the thickness requirement of the press manufacturing process and the cost requirement of the manufacturing materials.

To sum up, the thickness of the top plate 16 and the thickness of the side wall plate 17 are set to be 0.1 mm-2 mm, so that the phenomenon that the overall strength of the shielding case 15 is insufficient when the thickness of the top plate 16 and the thickness of the side wall plate 17 are smaller than 0.1mm can be avoided on one hand, and the phenomenon that the electromagnetic wave emitted from the high-voltage circuit 13 cannot be effectively shielded due to the fact that the overall thickness of the shielding case 15 is too small can also be avoided on the other hand, that is, the shielding case 15 has enough overall strength and meets the requirement of a stamping process is ensured, and the electromagnetic radiation generated by the high-voltage circuit 13 can be effectively isolated.

On the basis of the parameters, the thickness of the cover top plate 16 and the thickness of the side wall plate 17 are set to be less than or equal to 2mm, so that on one hand, the whole strength of the shielding cover 15 is ensured, and simultaneously, the manufacturing cost of the shielding cover 15 is effectively controlled, on the other hand, the whole weight of the shielding cover 15 can be effectively controlled, and the load bearing burden of the PCB 11 is avoided.

In other embodiments of the present application, the thickness of the cover top panel 16 and the thickness of the side gusset 17 may each be 0.3mm to 0.5 mm. Thus, the shielding case 15 with the thickness dimension can effectively isolate the electromagnetic radiation generated by the high-voltage circuit 13, and can also give consideration to the thickness dimension of the shielding case 15, so that the overall weight of the shielding case 15 can be effectively controlled, and the manufacturing materials of the shielding case 15 can be saved while the requirement of the stamping process of the shielding case 15 is met.

In other embodiments of the present application, both the cover top panel 16 and the side wall panels 17 are copper or silicon steel panels. Specifically, by setting both the ceiling plate 16 and the side fence 17 as copper plate members, it is possible to achieve effective shielding against an external electromagnetic field thanks to good electrical conductivity of copper metal.

And through setting up the capping board 16 and the side bounding wall 17 for the silicon steel spare, benefit from the good magnetic permeability of silicon steel spare, utilize shield 15 that silicon steel made, the magnetic flux can flow along its surface, and then can realize effectively shielding to the low frequency electromagnetic wave that high-voltage circuit 13 sent. Meanwhile, the silicon steel shielding case 15 has a low manufacturing cost, so that the overall manufacturing cost of the electric control device 10 can be effectively reduced.

In other embodiments of the present application, as shown in fig. 3 and 4, the side enclosures 17 are provided with openings 20. Specifically, the opening 20 is formed in the side wall 17, so that cables for connecting the low-voltage circuit 14 and external devices can freely enter and exit the shielding case 15, and the overall wiring and routing of the electric control device 10 are facilitated.

Optionally, the opening 20 may be a semi-open opening formed at the lower side edge of the side panel 17, so that when an external cable passes through the opening 20, there is no need to worry about damage caused by mutual friction between the outer wall of the cable and the lower side edge of the opening 20, and thus the cable can be easily connected to the low-voltage circuit 14 through the opening, the safety of the cable passing through the opening 20 is also ensured, and a fault that the cable insulation skin is cut by the sharp edge of the opening 20 to cause direct contact between the PCB 11 and the cable core of the cable and short circuit is avoided.

Optionally, the opening 20 may also be opened on the side surrounding plate 17, and a certain distance is left between the opening 20 and the lower side edge of the side surrounding plate 17, so that the overall strength of the shielding case 15 can be improved, and in order to prevent the edge of the opening 20 from cutting the insulating skin of the cable, arc transition can be realized at the edge of the opening 20 through a sheet metal process, so that the insulating skin of the cable and the edge of the opening 20 are in arc contact, and the integrity of the insulating skin of the cable when passing through the opening 20 is effectively ensured.

Optionally, in order to avoid the edge of the opening 20 from cutting the insulating skin of the cable, a rubber ring may be further embedded in the edge of the opening 20, so that the insulating skin of the cable can be in flexible contact with the edge of the opening 20, and thus, the integrity of the insulating skin of the cable when passing through the opening 20 is effectively ensured.

Alternatively, the opening 20 may be opened on the side of the side wall 17 facing away from the high-voltage circuit 13, so that the opening 20 faces away from the high-voltage circuit 13, so that the electromagnetic waves emitted by the high-voltage circuit 13 can enter the shielding case 15 through the opening 20 as little as possible, thereby achieving effective protection of the low-voltage circuit 14 in the shielding case 15.

Alternatively, the opening 20 may be a rectangular opening, a triangular opening, a trapezoidal opening, a circular or elliptical opening, and the like. By designing the opening 20 as a rectangular opening, the difficulty of opening the opening 20 can be reduced, thereby reducing the overall manufacturing cost of the shield case 15.

By designing the opening 20 as a triangular opening or a trapezoidal opening, the strength of the side wall 17 at the opening 20 can be ensured, and the overall strength of the shielding case 15 is ensured not to be significantly reduced by the opening 20.

And through designing opening 20 for circular or oval opening, then can make the edge of opening 20 be the arc limit, and then can increase the area of contact with the insulating skin of cable conductor, reduce the risk that the insulating skin of cable conductor is cut by opening 20 edge.

The embodiment of the application also provides a compressor, which comprises the electric control device 10. The electric control device 10 can be applied to a compressor and is used for controlling and driving power components in the compressor to operate. The electric control device 10 may be integrally installed on a housing of the compressor, and the like, and electrically connected to a driving device of the compressor, the electric control device 10 controls the driving device of the compressor to operate according to a preset instruction, and the driving device may drive a power component in the compressor to operate according to the instruction of the electric control device 10. Optionally, the compressor provided by the embodiment of the application can be applied to air conditioning equipment, particularly automobile air conditioning equipment. The method can also be applied to household appliances such as refrigerators and the like, and the method is not limited in the embodiment of the application.

The compressor provided by the embodiment of the application comprises the electric control device 10, the circuit assembly 12 in the electric control device 10 of the compressor is provided with the high-voltage circuit 13 and the low-voltage circuit 14 in a separated manner, and the low-voltage circuit 14 is covered with the shielding cover 15, so that the improvement of the overall electromagnetic compatibility of the electric control device 10 is simply and reliably realized, and the realization cost of covering the low-voltage circuit 14 with the shielding cover 15 is low, the technical difficulty is small, and the improvement cost of the electromagnetic compatibility of the electric control device 10 is effectively controlled. Therefore, the overall electromagnetic compatibility of the compressor is improved, and the overall manufacturing cost of the compressor is saved.

The embodiment of the application also provides air conditioning equipment which comprises the compressor. The compressor can be installed in an outdoor unit of an air conditioning apparatus. For automotive air conditioners, the compressor may also be a non-variable displacement or variable displacement compressor. The compressor may also be of the reciprocating or rotary type, depending on the mode of operation, and the reciprocating compressor may also be embodied as a crankshaft-link type or an axial piston type. The rotary compressor may then be a rotary vane compressor or a scroll compressor.

The compressor is used for compressing and delivering refrigerant vapor in the air conditioning equipment, the compressor extracts the refrigerant from a low-pressure area, compresses the refrigerant and then delivers the compressed refrigerant to a high-pressure area for cooling and condensation, heat dissipation devices such as radiating fins and the like deliver the heat dissipated into air, the refrigerant is changed into liquid from gas, and the pressure is increased.

Specifically, the working circuit of the automobile air conditioning compressor is divided into an evaporation zone (low pressure zone) and a condensation zone (high pressure zone). The refrigerant flows from the high pressure region to the low pressure region and is injected into the evaporator through the capillary tube, the pressure of the refrigerant suddenly drops, the liquid refrigerant immediately changes into a gas state, and a large amount of heat in the air is absorbed through the radiating fins. Therefore, the air conditioner compressor continuously works, and heat at one end of the low-pressure area is continuously absorbed into the refrigerant and then is sent to the high-pressure area to be diffused into the air, so that the air conditioner compressor plays a role in adjusting the air temperature.

The air conditioning equipment provided by the embodiment of the application comprises the compressor, the circuit assembly 12 in the electric control device 10 of the compressor is provided with the high-voltage circuit 13 and the low-voltage circuit 14 in a separated manner, and the low-voltage circuit 14 is covered with the shielding cover 15, so that the improvement of the overall electromagnetic compatibility of the electric control device 10 is simply and reliably realized, and the realization cost of covering the low-voltage circuit 14 with the shielding cover 15 is low, the technical difficulty is small, and the improvement cost of the electromagnetic compatibility of the electric control device 10 is effectively controlled. Therefore, the overall manufacturing cost of the compressor with the electric control device 10 is saved, and the overall manufacturing difficulty of the compressor is reduced. Therefore, the compressor can have better overall electromagnetic compatibility, meanwhile, the manufacturing cost of the compressor can be saved, the air conditioning equipment with the compressor can operate more stably, and the overall manufacturing cost of the air conditioning equipment is reduced.

The embodiment of the application also provides a vehicle which comprises the air conditioning equipment. In the embodiment, the vehicle may be a new energy vehicle using an unconventional vehicle fuel as a power source, or may be a new energy vehicle using a conventional vehicle fuel but a new vehicle-mounted power device. The new energy vehicle may be a hybrid electric vehicle, a pure electric vehicle, a fuel cell electric vehicle, or the like, or may be a vehicle using a super capacitor, a flywheel battery, a flywheel energy storage, or a high-efficiency energy storage as a power source.

Alternatively, the vehicle in the embodiment of the present application may be a vehicle that uses a conventional vehicle fuel as a power source. Such as vehicles using gasoline, diesel fuel, natural gas, liquefied petroleum gas, ethanol gasoline, methanol, or dimethanol as a power source.

The vehicle provided by the embodiment of the application comprises the air conditioning equipment, and the compressor in the air conditioning equipment has lower overall manufacturing cost and overall manufacturing difficulty and better overall electromagnetic compatibility, so that the air conditioning equipment with the compressor can run more stably and has better working stability, and the air conditioning equipment can work stably in the vehicle for a long time, thereby effectively improving the user product experience of the vehicle with the air conditioning equipment.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (12)

1. The utility model provides an electric control device, is applied to the compressor, electric control device includes circuit assembly, circuit assembly include the PCB board, set up in high-voltage circuit and low-voltage circuit on the PCB board, its characterized in that: the electric control device further comprises a shielding cover, the shielding cover is arranged on the low-voltage circuit and used for shielding the electromagnetic waves emitted by the high-voltage circuit to the low-voltage circuit, and the shielding cover is a metal cover or a metal composite material cover.

2. The electrical control device according to claim 1, characterized in that: the shield cover includes capping board and side wall board, the upside edge of side wall board with the neighboring edge of capping board meets, the downside edge of side wall board set up in on the PCB board, low voltage circuit is located the capping board with the side wall board encloses the shielding space who closes the formation.

3. The electrical control device according to claim 2, characterized in that: the side wall plate is vertically arranged relative to the cover top plate or obliquely arranged towards the outer side.

4. The electrical control device according to claim 3, characterized in that: the cover top plate and the side coaming are integrally formed.

5. The electrical control device according to claim 3, characterized in that: the upper side edge of the side coaming is bonded to the peripheral edge of the cover top plate.

6. The electrical control device according to claim 2, characterized in that: the lower side edge of the side enclosing plate is provided with a plurality of welding leg pieces, and the welding leg pieces are welded and fixed on the PCB.

7. The electric control device according to any one of claims 2 to 6, wherein: the thickness of the cover top plate and the thickness of the side panel are both 0.1 mm-2 mm.

8. The electric control device according to any one of claims 2 to 6, wherein: the cover top plate and the side wall plate are both copper plate pieces or silicon steel pieces.

9. The electric control device according to any one of claims 2 to 6, wherein: the side coaming is provided with an opening.

10. A compressor, characterized by: an electrically controlled device according to any one of claims 1 to 9.

11. An air conditioning apparatus characterized by: comprising the compressor of claim 10.

12. A vehicle, characterized in that: comprising an air conditioning apparatus according to claim 11.

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