CN211240675U - Mounting assembly of controller and household electrical appliance - Google Patents
Mounting assembly of controller and household electrical appliance Download PDFInfo
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- CN211240675U CN211240675U CN201922481645.2U CN201922481645U CN211240675U CN 211240675 U CN211240675 U CN 211240675U CN 201922481645 U CN201922481645 U CN 201922481645U CN 211240675 U CN211240675 U CN 211240675U
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Abstract
The utility model provides a mounting assembly and tame electric installation of controller, wherein, mounting assembly includes: a mounting part configured to assemble a switch assembly configured to be turned on or off according to an instruction of a controller; the lead is connected between the controller and the motor; the electromagnetic shielding assembly is arranged between the switch assembly and the lead and is configured to shield electromagnetic interference signals between the lead and the switch assembly. Through the technical scheme of the utility model, promoted electromagnetic shielding performance effectively, reduced the electromagnetic interference of power device to the wire, in addition, need not set up components such as magnetic ring, be favorable to reduction in production cost.
Description
Technical Field
The utility model relates to an electromagnetic interference field particularly, relates to an installation component and a tame electric installation of controller.
Background
EMI (Electromagnetic Interference) describes the degree of Electromagnetic Interference from one product to another product, and is one of the essential measures in the Certification experiment of air conditioner 3C (chinese Compulsory product Certification).
As shown in fig. 1, an outdoor unit 300 of an inverter air conditioner is generally provided with a phase-change circuit and a power factor calibration circuit, which are strong electromagnetic interference sources 102, and a controller mounting box 104 made of plastic material, which is generally used to fix a circuit board, and has a slot for placing a wire, such as a connecting wire of a motor 200, at an edge thereof.
Because the plastic part of the mounting box 104 has no shielding effect on electromagnetic interference, the electromagnetic interference generated by the electromagnetic interference source 102 can be directly radiated on the wires in the card slot through the space, so that the product is not easy to pass an EMI test.
In the related art, the solution to reduce the electromagnetic interference is to improve the filter circuit of the controller, such as adjusting the parameters of the capacitor and the inductor, or to change the unipolar filter circuit into the bipolar filter circuit, or to add a magnetic ring on the wire body, and these methods make the installation assembly of the controller not only increase the difficulty of circuit design, but also greatly increase the production cost.
Moreover, any discussion of the prior art throughout the specification is not an admission that the prior art is necessarily known to a person of ordinary skill in the art, and any discussion of the prior art throughout the specification is not an admission that the prior art is necessarily widely known or forms part of common general knowledge in the field.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
In view of this, an object of the present invention is to provide a mounting assembly for a controller.
Another object of the present invention is to provide a household electrical appliance.
In order to achieve the above object, the present invention provides a mounting assembly for a controller, including: a mounting part configured to assemble a switch assembly configured to be turned on or off according to an instruction of a controller; the lead is connected between the controller and the motor; the electromagnetic shielding assembly is arranged between the switch assembly and the lead and is configured to shield electromagnetic interference signals between the lead and the switch assembly.
In the technical scheme, the electromagnetic shielding assembly is arranged, so that the electromagnetic interference signals of the switch assembly, which are radiated to the guide line, are effectively shielded, on one hand, complex circuit improvement is not needed, or a filter circuit is improved, or a magnetic ring assembly is added, and on the other hand, the cost and the structural complexity of the installation assembly are also reduced.
Furthermore, the conductive metal in the electromagnetic shielding component generally adopts a sheet metal part, and the sheet metal part is low in price, so that the production cost can be further reduced.
In the above technical solution, the wire is detachably assembled to one side surface of the electromagnetic shielding component, and the switch component is disposed on the other side surface of the electromagnetic shielding component.
In the technical scheme, the wire is detachably assembled on one side face of the electromagnetic shielding assembly, and the switch assembly is arranged on the other side face of the electromagnetic shielding assembly, so that electromagnetic signals generated by the switch assembly are isolated, namely the electromagnetic signals can be absorbed by the electromagnetic shielding assembly, and the interference of the electromagnetic signals on guide transmission signals is reduced.
In the above technical solution, the electromagnetic shielding assembly includes a groove, and the wire is detachably assembled in the groove.
In this technical scheme, through the recess that sets up electromagnetic shield subassembly, can conveniently place the wire, shield the electromagnetic signal that switch module produced to improve wire transmission signal's stability.
In the above technical solution, the electromagnetic shielding assembly includes a protruding edge, the protruding edge is bent toward one side of the wire, and the wire is detachably assembled on the protruding edge.
In this technical scheme, include a protruding edge through setting up the electromagnetic shield subassembly, can conveniently place the wire on the protruding edge, make the electromagnetic signal that switch module produced effectively keep apart by the electromagnetic shield subassembly, and then make the better reliable of process of wire driving motor.
In the above technical solution, the method further comprises: and one end of the grounding wire is connected to the electromagnetic shielding assembly, the other end of the grounding wire is connected to the metal supporting part of the motor, and the metal supporting part is configured to be grounded.
In the technical scheme, one end of the grounding wire is connected to the electromagnetic shielding assembly, and the other end of the grounding wire is connected to the metal supporting part of the motor, so that electrostatic particles on the electromagnetic shielding assembly can be led into the grounding wire, the safety and the reliability of the driving motor are further improved, and the electrostatic interference and the electromagnetic interference on the wire are reduced.
In the above technical solution, the switch assembly includes a switch tube of the phase change circuit and/or a switch tube of the power factor correction circuit.
In the technical scheme, the switching tube of the phase change circuit can change the phase of a Power supply signal, such as an inverter or an IPM (Intelligent Power Module), and in addition, the Power factor correction circuit is also widely applied to a motor driving circuit to ensure the energy efficiency utilization rate of electric equipment.
In the above technical solution, the switch tube includes a metal oxide semiconductor field effect transistor or an insulated gate bipolar transistor, and a reverse freewheeling diode is connected between a source and a drain of the metal oxide semiconductor field effect transistor.
In the technical scheme, the metal oxide semiconductor field effect transistor has the characteristics of low cost, small use area and high integration level, the insulated gate bipolar transistor has the characteristics of high voltage resistance, energy conservation, convenience in installation and stable heat dissipation, and the reliability of the control installation assembly is further improved by arranging the switch tube.
In the above technical solution, the method further comprises: the metal oxide semiconductor field effect transistor includes at least one of a silicon type metal oxide semiconductor field effect transistor, a silicon carbide type metal oxide semiconductor field effect transistor, and a gallium nitride type metal oxide semiconductor field effect transistor.
The utility model discloses technical scheme of second aspect provides a household electrical appliances, include: a motor; the mounting assembly of a controller as defined in any preceding claim wherein the controller is adapted to drive the motor to operate.
Therefore, the technical effect defined by any one technical scheme is achieved, and details are not repeated herein.
In the above technical solution, the household electrical appliance includes at least one of an air conditioner, a refrigerator, a fan, a range hood, a dust collector, and a computer host.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic structural view of a mounting assembly of a prior art controller;
fig. 2 shows a schematic structural view of a mounting assembly of a controller according to an embodiment of the present invention;
fig. 3 shows a schematic view of a mounting assembly of a controller according to yet another embodiment of the present invention;
fig. 4 shows a schematic view of a mounting assembly of a controller according to yet another embodiment of the present invention;
fig. 5 shows a schematic view of a mounting assembly of a controller according to yet another embodiment of the present invention;
fig. 6 shows a schematic view of a mounting assembly of a controller according to yet another embodiment of the present invention;
fig. 7 shows a schematic view of a mounting assembly of a controller according to yet another embodiment of the present invention;
figure 8 shows a schematic block diagram of a home device according to an embodiment of the present invention,
the corresponding relation between the structure and the mark of the drawings is as follows:
the electromagnetic shielding device comprises a wire 100, an electromagnetic interference source 102, a mounting box 104, an impeller 106, an electromagnetic shielding assembly 108, a convex edge 1082, a grounding wire 110, a motor 200, a metal supporting part 202, an outdoor unit 300, an electromagnetic interference signal 400, one side surface 116 of the electromagnetic shielding assembly, and the other side surface 114 of the electromagnetic shielding assembly.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 2 to 8.
As shown in fig. 2 to 7, a mounting assembly of a controller according to an embodiment of the present invention includes: a mounting part configured to assemble a switch assembly configured to be turned on or off according to an instruction of a controller; a lead 100, wherein the lead 100 is connected between the controller and the motor 200; an electromagnetic shielding component 108 disposed between the switch component and the conductor 100, the electromagnetic shielding component 108 configured to shield electromagnetic interference signals 400 between the conductor 100 and the switch component.
In the technical scheme, the electromagnetic shielding assembly 108 is arranged, so that the electromagnetic interference signal 400 radiated to the wire 100 by the switch assembly is effectively shielded, on one hand, complex circuit improvement is not needed, or a filter circuit is improved, or a magnetic ring assembly is added, and on the other hand, the cost and the structural complexity of the assembly are also reduced.
Furthermore, the conductive metal in the electromagnetic shielding assembly 108 is generally made of sheet metal, and the sheet metal is cheap, so that the production cost can be further reduced.
As shown in fig. 4 to 7, the switch assembly is disposed inside the electromagnetic interference source 102, i.e. as an electrically controlled switch to drive the motor to operate.
In the above technical solution, the wire 100 is detachably assembled to one side surface 116 of the electromagnetic shielding assembly 108, and the switch assembly is disposed on the other side surface 114 of the electromagnetic shielding assembly 108.
In this embodiment, the wire 100 is detachably assembled to one side 116 of the electromagnetic shielding assembly 108, and the switch assembly is disposed on the other side 116 of the electromagnetic shielding assembly 108, so that the electromagnetic signal generated by the switch assembly is isolated, that is, the electromagnetic signal can be absorbed by the electromagnetic shielding assembly 108, so as to reduce the interference of the electromagnetic signal on the guided transmission signal.
The other side 114 and the one side 116 of the electromagnetic shielding assembly 108 are not limited to two opposite sides.
In the above solution, the electromagnetic shielding assembly 108 includes a groove, and the wire 100 is detachably assembled in the groove.
In this technical scheme, through the recess that sets up electromagnetic shield subassembly 108, can conveniently place wire 100, shield the electromagnetic signal that the switching element produced to improve wire 100 transmission signal's stability.
In the above technical solution, the electromagnetic shielding assembly 108 includes a convex edge 1082, the convex edge 1082 is bent toward one side of the conductive wire 100, and the conductive wire 100 is detachably assembled on the convex edge 1082.
In the technical scheme, the electromagnetic shielding assembly 108 comprises the convex edge 1082, and the conducting wire 100 can be conveniently placed on the convex edge 1082, so that an electromagnetic signal generated by the switching assembly is effectively isolated by the electromagnetic shielding assembly 108, and further, the process of driving the motor 200 by the conducting wire 100 is better and more reliable.
In the above technical solution, the method further comprises: a ground wire 110, one end of which is connected to the electromagnetic shielding assembly 108, and the other end of the ground wire 110 is connected to a metal support 202 of the motor 200, the metal support 202 being configured to be grounded.
In this embodiment, by disposing one end of the ground wire to be connected to the electromagnetic shielding assembly 108 and the other end of the ground wire 110 to be connected to the metal supporting portion 202 of the motor 200, the electrostatic particles on the electromagnetic shielding assembly 108 can be guided to the ground wire, so as to further improve the safety and reliability of the driving motor 200 and reduce the electrostatic interference and electromagnetic interference signal 400 received by the lead 100.
In the above technical solution, the switch assembly includes a switch tube of the phase change circuit and/or a switch tube of the power factor correction circuit.
In the technical solution, a switching tube of the phase-change circuit can change a phase of a Power supply signal, such as an inverter or an IPM (Intelligent Power Module), and in addition, the Power factor correction circuit is also widely applied to a driving circuit of the motor 200 to ensure an energy efficiency utilization rate of the electric device, and by providing the electromagnetic shielding assembly 108, the interference of the electromagnetic interference signal 400 on the lead 100 can be reduced, and the reliability of the phase-change circuit or the Power factor correction circuit is not affected.
In the above technical solution, the switch tube includes a metal oxide semiconductor field effect transistor or an insulated gate bipolar transistor, and a reverse freewheeling diode is connected between a source and a drain of the metal oxide semiconductor field effect transistor.
In the technical scheme, the metal oxide semiconductor field effect transistor has the characteristics of low cost, small use area and high integration level, the insulated gate bipolar transistor has the characteristics of high voltage resistance, energy conservation, convenience in installation and stable heat dissipation, and the reliability of the control installation assembly is further improved by arranging the switch tube.
In the above technical solution, the method further comprises: the metal oxide semiconductor field effect transistor includes at least one of a silicon type metal oxide semiconductor field effect transistor, a silicon carbide type metal oxide semiconductor field effect transistor, and a gallium nitride type metal oxide semiconductor field effect transistor.
Based on the disclosure of fig. 2 and 3, the following describes the arrangement among the electromagnetic interference source 102, the electromagnetic shielding assembly 108 and the wire 100 according to the embodiment of the present invention with reference to fig. 4 to 7.
As shown in fig. 4, the cross section of the electromagnetic shielding assembly 108 is concave, the conductive wire 100 is disposed inside the groove, the electromagnetic interference source 102 is disposed on the other side surface 114 of the electromagnetic shielding assembly 108, and the electromagnetic interference signal 400 is absorbed by the electromagnetic shielding assembly 108 and does not radiate to the conductive wire 100 when being transmitted toward the conductive wire 100.
As shown in fig. 5, the cross-section of the electromagnetic shielding assembly 108 is "L" shaped, that is, the bottom of the electromagnetic shielding assembly 108 is provided with a convex edge 1081, the conductive wire 100 is provided on the convex edge 1082, the electromagnetic interference source 102 is provided on the other side surface 114 of the electromagnetic shielding assembly 108, and the electromagnetic interference signal 400 is absorbed by the electromagnetic shielding assembly 108 and does not radiate to the conductive wire 100 when being transmitted toward the conductive wire 100.
As shown in fig. 6, the cross section of the electromagnetic shielding assembly 108 is arc-shaped, the conductive wire 100 is disposed inside the groove, the electromagnetic interference source 102 is disposed on the other side surface 114 of the electromagnetic shielding assembly 108, and the electromagnetic interference signal 400 is absorbed by the electromagnetic shielding assembly 108 and does not radiate to the conductive wire 100 when being transmitted toward the conductive wire 100.
As shown in fig. 7, the cross section of the electromagnetic shielding assembly 108 is a hollow cylinder, the conductive wire 100 is disposed inside the hollow cylinder, i.e., in the hollow area of the hollow cylinder, the electromagnetic interference source 102 is disposed on the other side surface 114 of the electromagnetic shielding assembly 108, and the electromagnetic interference signal 400 is absorbed by the electromagnetic shielding assembly 108 and does not radiate to the conductive wire 100 when being transmitted toward the conductive wire 100.
As shown in fig. 8, an embodiment of the present invention provides a home appliance 800, including: a motor; a mounting assembly 802 for a controller as defined in any of the embodiments above.
In the above technical solution, the household electrical appliance 800 includes at least one of an air conditioner, a refrigerator, a fan, a range hood, a dust collector, and a computer host.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A mounting assembly for a controller for driving operation of a motor, the mounting assembly comprising:
a mounting part configured to assemble a switch assembly configured to be turned on or off according to an instruction of the controller;
a wire connected between the controller and the motor;
an electromagnetic shielding assembly disposed between the switch assembly and the wire, the electromagnetic shielding assembly configured to shield electromagnetic interference signals between the wire and the switch assembly.
2. The mounting assembly of a controller of claim 1,
the wire detachably assemble in a side of electromagnetic shield subassembly, the switch module is located another side of electromagnetic shield subassembly.
3. The mounting assembly of a controller of claim 1,
the electromagnetic shielding component comprises a groove, and the conducting wire is detachably assembled in the groove.
4. The mounting assembly of a controller of claim 1,
the electromagnetic shielding assembly comprises a convex edge, the convex edge is bent towards one side of the lead, and the lead is detachably assembled on the convex edge.
5. The mounting assembly of a controller according to any one of claims 1 to 4, further comprising:
a ground line having one end connected to the electromagnetic shield assembly and another end connected to a metal support of the motor, the metal support configured to be grounded.
6. The mounting assembly of a controller according to any one of claims 1 to 4,
the switch assembly comprises a switch tube of the phase change circuit and/or a switch tube of the power factor correction circuit.
7. The mounting assembly of a controller of claim 6,
the switch tube comprises a metal oxide semiconductor field effect transistor or an insulated gate bipolar transistor, and a reverse freewheeling diode is connected between a source electrode and a drain electrode of the metal oxide semiconductor field effect transistor.
8. The mounting assembly of the controller of claim 7, further comprising:
the metal oxide semiconductor field effect transistor comprises at least one of a silicon type metal oxide semiconductor field effect transistor, a silicon carbide type metal oxide semiconductor field effect transistor and a gallium nitride type metal oxide semiconductor field effect transistor.
9. An appliance, comprising:
a motor;
a mounting assembly for a controller as claimed in any one of claims 1 to 8, the controller being adapted to drive operation of the motor.
10. The home device of claim 9,
the household appliance comprises at least one of an air conditioner, a refrigerator, a fan, a range hood, a dust collector and a computer host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922481645.2U CN211240675U (en) | 2019-12-31 | 2019-12-31 | Mounting assembly of controller and household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922481645.2U CN211240675U (en) | 2019-12-31 | 2019-12-31 | Mounting assembly of controller and household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211240675U true CN211240675U (en) | 2020-08-11 |
Family
ID=71918178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922481645.2U Active CN211240675U (en) | 2019-12-31 | 2019-12-31 | Mounting assembly of controller and household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211240675U (en) |
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2019
- 2019-12-31 CN CN201922481645.2U patent/CN211240675U/en active Active
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