CN110602935B - Electrical apparatus box, air conditioner internal unit and air conditioner - Google Patents
Electrical apparatus box, air conditioner internal unit and air conditioner Download PDFInfo
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- CN110602935B CN110602935B CN201910775441.1A CN201910775441A CN110602935B CN 110602935 B CN110602935 B CN 110602935B CN 201910775441 A CN201910775441 A CN 201910775441A CN 110602935 B CN110602935 B CN 110602935B
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- box body
- electrical
- flow
- flow guiding
- side wall
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- 238000009413 insulation Methods 0.000 claims description 8
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- 238000000034 method Methods 0.000 description 9
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- 230000008569 process Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001674044 Blattodea Species 0.000 description 1
- 241000270290 Gekkota Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 239000008358 core component Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0049—Casings being metallic containers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
The invention relates to an electric appliance box, an air conditioner indoor unit and an air conditioner, wherein the electric appliance box comprises a box body main body, electric appliance elements and a diversion assembly; the electric element is arranged in the box body, the first surface of the electric element faces to the first side wall of the box body, and the box body is provided with a grounding structure; one end of the flow guide component is arranged between the first surface of the electrical element and the first side wall of the box body, the other end of the flow guide component is connected with the grounding structure, and the flow guide component can conduct the current which is generated in the electrical element and exceeds a preset current value to the grounding structure. The dangers such as high temperature, fire and the like caused by current aggregation are prevented, and the stability, safety and reliability of the electrical box are improved; moreover, the safety, stability and reliability of electrical equipment such as air conditioners, refrigerators and the like applying the electrical box are improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an electric appliance box, an air conditioner indoor unit and an air conditioner.
Background
In the use process of the existing split type wall-mounted air conditioner indoor unit electrical box, due to the requirements of wiring and after-sale maintenance, the electrical box cannot be completely sealed, dust, moisture and foreign matters (such as cockroaches and geckos) can enter the interior of the electrical box, if the safety on the PCB of the electrical box fails at this moment, the dust, the moisture and the foreign matters can cause strong electric parts on the PCB to generate short-circuit arc discharge, the short-circuit arc discharge can generate instant heavy current, and the current can directly act on the surface of the electrical box, so that the local temperature on the surface of the electrical box is caused, and the electrical box is caused to catch fire. Therefore, when the fireproof performance of the electrical box is evaluated, the continuous short-circuit arc discharge experiment is required to be performed by simulating the conditions, the short-circuit arc discharge phenomenon is ensured to occur in the using process, the electrical box is not ignited, and the reliability of the quality of the electrical box can be ensured. At present, in order to improve the anti-arcing and ignition performance of the electrical box, a method for directly improving the fireproof and flame-retardant performance of the electrical box is mostly adopted, such as a mode of adopting a metal shielding plate, a flame-retardant plastic electrical box and a thermosetting plastic electrical box, although the electrical box can be prevented from igniting other parts around the electrical box due to short-circuit arcing and ignition, ignition caused by blocking the short-circuit arcing is still realized, and when the sealing performance of the electrical box is poor or gaps exist between the metal shielding plates, flame can still blow out from the electrical box to ignite the peripheral parts, so that the fire disaster of the whole air conditioner is initiated.
Accordingly, there is a need to provide an electrical box, an air conditioner indoor unit, and an air conditioner that solve the shortcomings of the prior art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an electric box, an air conditioner indoor unit and an air conditioner.
An electric appliance box comprises a box body main body, an electric appliance element and a diversion component;
the electric element is arranged in the box body, the first surface of the electric element faces to the first side wall of the box body, and the box body is provided with a grounding structure;
one end of the flow guide component is arranged between the first surface of the electrical element and the first side wall of the box body, the other end of the flow guide component is connected with the grounding structure, and the flow guide component can conduct the current which is generated in the electrical element and exceeds a preset current value to the grounding structure.
Further, the electrical component comprises a printed circuit board, and the flow guide assembly is provided with a flow guide end, and the flow guide end is arranged between the first surface of the printed circuit board and the first side wall of the box body.
Further, the flow guiding assembly is a plurality of flow guiding needles, and each flow guiding needle comprises a first tip part, a flow guiding part and a tip part which are sequentially connected;
the first tip end portion forms the flow guiding end, and the first tip end portion penetrates through the box body and then sequentially passes through the flow guiding portion and the tail end portion to be connected with the grounding structure.
Further, the box body is an insulating box body;
the drainage part is arranged on the outer side of the insulation box body or embedded on the insulation box body;
the insulation box body is provided with a first through hole for the first tip end to pass through.
Further, the grounding structure is arranged on the outer surface of the box body, and is provided with a fixing bolt;
the tip portion is plate-shaped, and the fixing bolt fixes the tip portion to the ground structure.
Further, the flow guide assembly is a shielding cover, and the shielding cover comprises a metal shielding plate and a plurality of second tip parts, wherein the metal shielding plate is arranged on the outer side of the box body in a fitting mode, and the second tip parts are connected with the metal shielding plate;
one end of each second tip part is connected with the inner surface of the metal shielding plate, and the other end of each second tip part penetrates through the box body to form the flow guiding end;
the metal shielding plate is connected with the grounding structure.
Further, the first surface of the printed circuit board comprises a high-flow area and a low-flow area,
at least one flow guiding end is arranged between the low flow area and the first side wall of the box body, and the rest flow guiding ends are arranged between the high flow area and the first side wall of the box body.
Further, the arrangement density of the flow guiding ends arranged between the high flow area and the first side wall of the box body is greater than the arrangement density of the flow guiding ends arranged between the low flow area and the first side wall of the box body.
Further, the arrangement density of the flow guiding ends arranged between the high flow area and the first side wall of the box body is 2-4 times of the arrangement density of the flow guiding ends arranged between the low flow area and the first side wall of the box body.
Further, the first surface of the printed circuit board is provided with a positive electrode binding post and a negative electrode binding post, a high-flow area is formed in an area between the positive electrode binding post and the negative electrode binding post, and a low-flow area is formed in other areas.
Further, the distance between each flow guiding end and the printed circuit board is greater than or equal to 8mm.
Further, the axis of each flow guiding end is perpendicular to the printed circuit board.
Furthermore, each flow guiding end is conical, and the vertex angle of each flow guiding end is in the range of 15-25 degrees.
Further, the distance between each flow guiding end and the first surface of the printed circuit board is smaller than 8mm, and the outer surface of each flow guiding end is coated with an insulating layer.
Based on the same inventive concept, the invention also provides an air conditioner indoor unit, which comprises the electrical box.
Based on the same inventive concept, the invention also provides an air conditioner, comprising the air conditioner indoor unit.
Compared with the closest prior art, the technical scheme of the invention has the following advantages:
according to the electrical box provided by the technical scheme, the one end of the diversion component is arranged between the box body main body and the electrical element, so that instant heavy current generated when short-circuit arc discharge occurs in the electrical element can be concentrated on one end of the diversion component close to the electrical element, then the current is conducted to the other end of the diversion component, and further the current is conducted to the ground through the grounding structure connected with the other end of the diversion component, namely, the current is timely led out of the electrical box, the current is prevented from being concentrated in the interior and on the surface of the electrical box, and further the risks of high temperature, fire and the like caused by current concentration are prevented, and the stability, safety and reliability of the electrical box are improved; moreover, as the inside and the surface of the electrical box can avoid high temperature and fire, the problem that high temperature and flame spread to peripheral parts are not generated any more, and the safety and the operation reliability of other parts are affected is solved, and the safety, the stability and the reliability of electrical equipment such as an air conditioner, a refrigerator and the like applying the electrical box are improved.
Drawings
Fig. 1 is a schematic structural view of an electrical box provided by the present invention;
fig. 2 is a front view of the electrical box provided by the present invention;
fig. 3 is a rear view of the electrical box provided by the present invention.
Wherein, 1-a box body; 2-a guide needle, 21-a first tip part, 22-a drainage part and 23-a tip part; 3-a printed circuit board; 4-grounding structure, 41-fixing bolt.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to fig. 1-3 in conjunction with examples. Fig. 1 is a schematic structural view of an electrical box provided by the present invention; fig. 2 is a front view of the electrical box provided by the present invention; and, fig. 3 is a rear view of the electrical box provided by the present invention.
The invention provides an electric appliance box, which comprises a box body main body 1, electric appliance elements and a diversion assembly; the electric element is arranged in the box body 1, the first surface of the electric element faces to the first side wall of the box body 1, and the box body 1 is provided with a grounding structure 4; one end of the flow guiding component is arranged between the first surface of the electrical element and the first side wall of the box body 1, the other end of the flow guiding component is connected with the grounding structure 4, and the flow guiding component can conduct the current which is generated in the electrical element and exceeds a preset current value to the grounding structure 4.
By arranging one end of the diversion component between the box body main body 1 and the electrical element, instant heavy current generated when short circuit arc discharge occurs in the electrical element can be concentrated on one end of the diversion component close to the electrical element, then the current is conducted to the other end of the diversion component, and then the current is conducted to the ground through the grounding structure 4 connected with the other end of the diversion component, namely the current is timely led out of the electrical box, so that the current is prevented from being concentrated in the interior and the surface of the electrical box, and further the risks of high temperature, fire and the like caused by current aggregation are prevented, and the stability, the safety and the reliability of the electrical box are improved; moreover, as the inside and the surface of the electrical box can avoid high temperature and fire, the problem that high temperature and flame spread to peripheral parts are not generated any more, and the safety and the operation reliability of other parts are affected is solved, and the safety, the stability and the reliability of electrical equipment such as an air conditioner, a refrigerator and the like applying the electrical box are improved.
In some embodiments of the invention, the electrical component comprises a printed circuit board 3, and the diversion assembly is provided with a diversion end, and the diversion end is arranged between a first surface of the printed circuit board 3 and a first side wall of the box body 1. The printed circuit board 3 (PCB circuit board) is a core component in the electrical box, all control functions of the electrical box need to be changed through data transmission and voltage and current of the PCB circuit board, a bracket is arranged in the box body 1, the PCB circuit board is fixed on the bracket, so that positioning and mounting of the PCB circuit board can be completed, the PCB circuit board is close to a side wall of one side of the box body 1, and a diversion end of the diversion component is arranged between the side wall and the PCB circuit board.
In some embodiments of the present invention, the guide assembly is a plurality of guide pins 2, and each guide pin 2 includes a first tip portion 21, a drainage portion 22, and a distal end portion 23 connected in sequence; the first tip portion 21 forms the flow guiding end, and the first tip portion 21 penetrates through the box body 1 and then sequentially passes through the flow guiding portion 22 and the tip portion 23 to be connected with the grounding structure 4. The plurality of guide pins 2 are independent guide channels, each guide channel takes a first tip part 21 for attracting and gathering current as a starting point, and then the gathered current is transmitted to the grounding structure 4 through the guide part 22 and the tip part 23 in sequence; the current that produces on a plurality of water conservancy diversion passageway can guarantee the PCB circuit board can in time derive, and the current that produces in the different positions on the PCB circuit board all can in time derive moreover, has improved the timeliness of current derivation on the PCB circuit board, has avoided the omission to the current that produces in some positions, has realized deriving at any time of the whole time quantum of all positions, has made security, reliability and the stability of electrical apparatus box further improve.
In some embodiments of the invention, the box body 1 is an insulating box; the drainage part 22 is arranged on the outer side of the insulation box body or embedded on the insulation box body; the insulating case is provided with a first through hole through which the first tip portion 21 passes. The drainage portion 22 may be a rod-shaped metal wire or a plate-shaped metal wire, and functions to timely conduct the current collected at the first tip portion 21 to the tip portion 23, so long as the conductivity is ensured, other aspects such as the shape thereof may be set according to the installation practice, the connection manner between the drainage portion and the case body 1 is not particularly limited, and the drainage portion may be embedded in the case body 1 by keeping a certain distance from the outer surface of the case body 1 due to its own rigidity; the first through holes can facilitate the first tip parts 21 to pass through, and the first through holes are provided in a plurality and are in one-to-one correspondence with the first tip parts 21.
In some embodiments of the present invention, the grounding structure 4 is provided on the outer surface of the box body 1, and the grounding structure 4 has a fixing bolt 41; the distal end portion 23 is plate-shaped, and the fixing bolt 41 fixes the distal end portion 23 to the ground structure 4. The terminal part 23 is the terminal point of the diversion channel formed by the diversion needle 2, the current gathered through the first terminal part 21 is finally conducted to the terminal part 23, then the terminal part 23 is fixed on the fixing bolt 41 of the grounding structure 4, namely, the current can be transferred to the grounding structure 4 through the fixing bolt 41, the current is led out, and the danger of current concentration, high temperature generation and fire is avoided.
In some embodiments of the present invention, the diversion component is a shielding case, and the shielding case includes a metal shielding plate and a plurality of second tip parts connected with the metal shielding plate, wherein the metal shielding plate is arranged on the outer side of the box body 1 in a fitting way; one end of each second tip part is connected with the inner surface of the metal shielding plate, and the other end of each second tip part penetrates through the box body main body 1 to form the flow guiding end; the metal shield is connected to the grounding structure 4. The metal shielding plate is attached to the outer side of the box body main body 1, namely, a metal cover body which is completely corresponding to the metal shielding plate is additionally arranged on the outer side of the insulating box body, so that the tightness of the metal shielding plate is greatly improved, and the high temperature and flame can be prevented from being transmitted to other external parts through the box body main body 1 once the high temperature and even the fire occur in the electric box, the safety of peripheral parts is affected, and the insulating box body can be made of a box body made of plastic materials or a box body made of resin materials; the metal cover body formed by the metal shielding plate has conductive performance and is connected with the grounding structure 4, so that a plurality of second tip parts are arranged in the metal cover body, the second tip parts respectively penetrate through the box body main body 1 and respectively form guide ends in a space close to the PCB circuit board, the guide ends and the metal cover body form a plurality of guide channels intersecting at one position, the starting points of the guide channels are the guide ends formed by the second tip parts respectively, the guide ends are gathered on the metal cover body, the metal cover body is further connected with the grounding structure 4, namely, currents gathered at the guide ends are gathered on the metal cover body, and then are led out through the grounding structure 4; and the box body 1 is correspondingly provided with a plurality of second through holes, and each second through hole can be used for passing through one second tip end part.
In some embodiments of the present invention, the first surface of the printed circuit board 3 includes a high-flow area and a low-flow area, at least one of the flow guiding ends is disposed between the low-flow area and the first sidewall of the box body 1, and the other flow guiding ends are disposed between the high-flow area and the first sidewall of the box body 1. The high-current area is an area easy to generate arc-drawing short circuit, namely a position easy to generate large current, and compared with the high-current area, the low-current area is lower in probability of generating arc-drawing short circuit and generating current, and the low-current area is lower in magnitude of generating current. The space corresponding to the high-current area and the space corresponding to the low-current area are both provided with the diversion ends, so that the current generated at each position of the PCB can be timely led out, and the timeliness and comprehensiveness of current lead-out are improved.
In some embodiments of the present invention, the arrangement density of the flow guiding ends provided between the high flow region and the first side wall of the box body 1 is greater than the arrangement density of the flow guiding ends provided between the low flow region and the first side wall of the box body 1. The arrangement density of the diversion ends is proportional to the magnitude of the generated current respectively, the arrangement density of the high-current area is larger than the arrangement density of the low-current area, so that the PCB circuit board can be conducted out comprehensively, the probability and the magnitude of the current are matched, the diversion ends are prevented from being abused, and the utilization rate of each diversion end is improved; and whether the current guiding end is in the high-flow area or the low-flow area, the set density is required to ensure that the current generated in the corresponding area can be totally guided out.
In some embodiments of the present invention, the arrangement density of the flow guiding ends between the high flow region and the first side wall of the box body 1 is 2 to 4 times the arrangement density of the flow guiding ends between the low flow region and the first side wall of the box body 1. The current guiding-out device can simultaneously ensure the current guiding-out of the high-current area and the low-current area within the multiple range, simultaneously furthest avoids the abusive installation and abuse of the guiding end, saves the cost and simplifies the internal structure of the electric box.
In some embodiments of the present invention, the first surface of the printed circuit board 3 is provided with a positive terminal and a negative terminal, and the area between the positive terminal and the negative terminal forms a high-flow area, and the other area forms a low-flow area. And a strong current part, namely a high current area, is arranged between the positive electrode binding post and the negative electrode binding post.
In some embodiments of the invention, the distance between each of the diversion ends and the first surface of the printed circuit board 3 is greater than or equal to 8mm. The great current that produces when the arc short circuit can cause to draw between water conservancy diversion end and the PCB circuit board is unable normally to export, consequently the water conservancy diversion end need set up in box body main part 1 is close to the lateral wall of PCB circuit board, so can guarantee that the current on the PCB circuit board is exported in time. But also avoid the water conservancy diversion end excessively to be close to with the PCB circuit board, avoid influencing the normal current transmission on the PCB circuit board, through actual detection know, limit the minimum distance that its set up at 8mm can avoid the emergence of above-mentioned condition.
In some embodiments of the invention, the axis of each of the diversion ends is perpendicular to the printed circuit board 3. The diversion end is perpendicular to the PCB, so that the led-out current can be timely kept away from the PCB in the leading-out process, and the influence of the current on the PCB in the conduction process is avoided.
In some embodiments of the present invention, each of the flow guiding ends has a conical shape, and a vertex angle of each of the flow guiding ends is in a range of 15 ° to 25 °. The cone-shaped diversion end is favorable for current collection, the vertex angle of 15-25 degrees is favorable for current collection, the current collection rate is the fastest in the angle range, and the current collection rate is the largest in the angle range.
In some embodiments of the present invention, the distance between each of the diversion ends and the printed circuit board 3 is less than 8mm, and the outer surface of each diversion end is coated with an insulating layer. Because the water conservancy diversion end can not be too close to the PCB circuit board, but the distance between the PCB circuit board and the lateral wall of box body 1 is not necessarily all can satisfy and be greater than 8mm, consequently, in the electric apparatus box that the distance is less between the lateral wall of PCB circuit board and box body 1, the position that sets up the water conservancy diversion end just becomes the difficult point, and through the surface coating insulating layer at the water conservancy diversion end, can reduce the ability of gathering the flow of water conservancy diversion end, also reduced the water conservancy diversion end simultaneously and influence the ability of the normal electric current transmission of PCB circuit board, can set up the water conservancy diversion end in the position department that is less than 8mm apart from the PCB circuit board, the installation scope and the mounted position's of water conservancy diversion end flexibility have been enlarged.
Based on the same inventive concept, the invention also provides an air conditioner indoor unit, which comprises the electrical box.
Based on the same inventive concept, the invention also provides an air conditioner, comprising the air conditioner indoor unit.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (16)
1. An electric appliance box is characterized by comprising a box body main body (1), electric appliance elements and a diversion component;
the electric element is arranged in the box body (1), the first surface of the electric element faces to the first side wall of the box body (1), the box body (1) is provided with a grounding structure (4), and the grounding structure is arranged on the outer surface of the box body;
the flow guiding component is provided with a flow guiding end, the flow guiding end is arranged between the first surface of the electrical element and the first side wall of the box body main body (1), the other end of the flow guiding end is connected with the grounding structure (4), and the flow guiding component can conduct the current which is generated in the electrical element and exceeds a preset current value to the grounding structure (4);
wherein the distance between the flow guiding end and the first surface of the electrical element is more than or equal to 8mm; or, the distance between the diversion end and the first surface of the electrical element is smaller than 8mm, and the outer surface of the diversion end is coated with an insulating layer.
2. An electrical box according to claim 1, characterized in that the electrical component comprises a printed circuit board (3), the flow guiding end being arranged between a first surface of the printed circuit board (3) and a first side wall of the box body (1).
3. The electrical box according to claim 2, wherein the flow guiding assembly is a plurality of flow guiding needles (2), each flow guiding needle (2) comprises a first tip part (21), a flow guiding part (22) and a tail end part (23) which are connected in sequence;
the first tip part (21) forms the diversion end, and the first tip part (21) penetrates through the box body main body (1) and then sequentially passes through the drainage part (22) and the tail end part (23) to be connected with the grounding structure (4).
4. -electrical box according to claim 3, characterised in that the box body (1) is an insulating box body;
the drainage part (22) is arranged on the outer side of the insulation box body or embedded on the insulation box body;
the insulation box body is provided with a first through hole for the first tip part (21) to pass through.
5. -electrical box according to claim 3, characterised in that the grounding structure (4) is provided on the outer surface of the box body (1), the grounding structure (4) having a fixing bolt (41);
the tip portion (23) is plate-shaped, and the fixing bolt (41) fixes the tip portion (23) to the grounding structure (4).
6. The electrical box according to claim 2, wherein the flow guiding assembly is a shielding cover, and the shielding cover comprises a metal shielding plate and a plurality of second tip parts, wherein the metal shielding plate is arranged on the outer side of the box body (1) in a fitting way, and the second tip parts are connected with the metal shielding plate;
one end of each second tip part is connected with the inner surface of the metal shielding plate, and the other end of each second tip part penetrates through the box body (1) to form the flow guiding end;
the metal shielding plate is connected with the grounding structure (4).
7. An electrical box according to any of claims 2 to 6, characterized in that the first surface of the printed circuit board (3) comprises a high flow zone and a low flow zone,
at least one flow guiding end is arranged between the low flow area and the first side wall of the box body (1), and the rest flow guiding ends are arranged between the high flow area and the first side wall of the box body (1).
8. The electrical box according to claim 7, characterized in that the arrangement density of the flow guiding ends provided between the high flow area and the first side wall of the box body (1) is greater than the arrangement density of the flow guiding ends provided between the low flow area and the first side wall of the box body (1).
9. The electrical box according to claim 8, characterized in that the arrangement density of the flow guiding ends provided between the high flow area and the first side wall of the box body (1) is 2-4 times the arrangement density of the flow guiding ends provided between the low flow area and the first side wall of the box body (1).
10. The electrical box according to claim 7, characterized in that the first surface of the printed circuit board (3) is provided with a positive terminal and a negative terminal, the area between the positive terminal and the negative terminal forming a high flow area, the other areas forming a low flow area.
11. An electrical box according to any one of claims 2 to 6, characterized in that the distance between each of the flow-guiding ends and the first surface of the printed circuit board (3) is greater than or equal to 8mm.
12. An electrical box according to any one of claims 2 to 6, characterized in that the axis of each of the deflector ends is perpendicular to the printed circuit board (3).
13. The electrical box of any one of claims 2 to 6, wherein each of the flow-guiding ends is conical, and the apex angle of each of the flow-guiding ends is in the range of 15-25 °.
14. An electrical box according to any one of claims 2 to 6, characterized in that the distance of each of the flow-guiding ends from the first surface of the printed circuit board (3) is less than 8mm, and the outer surface of each of the flow-guiding ends is coated with an insulating layer.
15. An air conditioner indoor unit comprising the electrical box according to any one of claims 1 to 14.
16. An air conditioner comprising the air conditioner indoor set of claim 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910775441.1A CN110602935B (en) | 2019-08-21 | 2019-08-21 | Electrical apparatus box, air conditioner internal unit and air conditioner |
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| CN201910775441.1A CN110602935B (en) | 2019-08-21 | 2019-08-21 | Electrical apparatus box, air conditioner internal unit and air conditioner |
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| CN110602935A CN110602935A (en) | 2019-12-20 |
| CN110602935B true CN110602935B (en) | 2024-01-12 |
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| CN110602935A (en) | 2019-12-20 |
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Effective date of registration: 20200715 Address after: 519070 Guangdong city of Zhuhai Province Qianshan Applicant after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Applicant after: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI Address before: 519070 Guangdong city of Zhuhai Province Qianshan Applicant before: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI |
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