Electric heating device and air conditioner

Abstract

The utility model discloses an electric heating device and an air conditioner, a motor heating device is used for the air conditioner, the electric heating device comprises an electric heating belt and a grounding assembly, the electric heating belt is arranged on a chassis of the air conditioner, the electric heating belt comprises a heating core, an insulating part and a metal net, and the insulating part is arranged between the heating core and the metal net. The grounding assembly comprises a grounding wire and a grounding terminal, one end of the grounding wire is connected with the metal net, the other end of the grounding wire is connected with the grounding terminal, and the grounding terminal is suitable for grounding. According to the electric heating device provided by the utility model, the grounding assembly is arranged, and the grounding assembly releases the induced voltage of the metal net in time, so that the use safety of the electric heating device is improved.

Description

Technical Field

[0001] The utility model relates to the field of air conditioning equipment, in particular to an electric heating device and an air conditioner. Background Art

[0002] The outdoor unit of an air conditioner sold in cold regions is generally equipped with chassis electric heating to ensure that the water generated when the outdoor unit of the air conditioner operates in a low-temperature environment does not freeze on the chassis and can be quickly discharged, so as to ensure the normal operation of the machine. Since the chassis structures of different models of outdoor units usually vary, strip-shaped electric heaters are generally selected. To ensure the long-term reliable operation of the strip-shaped electric heater, a metal mesh is usually woven on its surface to play a protective role.

[0003] The strip-shaped electric heater generally uses an alternating voltage. An induced voltage will be generated on the metal mesh on its surface. If the induced voltage is not released in time, it may discharge to nearby metals, posing a safety hazard. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides an electric heating device, which can release the induced voltage of the metal mesh in time and improve the use safety.

[0005] The utility model also provides an air conditioner with the above electric heating device.

[0006] The electric heating device according to the first aspect of the utility model is used for an air conditioner and includes: an electric heating belt, which is arranged on the chassis of the air conditioner. The electric heating belt includes a heating core, an insulating member and a metal mesh, and the insulating member is arranged between the heating core and the metal mesh; a grounding assembly, which includes a grounding wire and a grounding terminal. One end of the grounding wire is connected to the metal mesh, and the other end is connected to the grounding terminal, and the grounding terminal is suitable for grounding.

[0007] According to the electric heating device of the embodiment of the utility model, by setting the grounding assembly, the grounding assembly releases the induced voltage of the metal mesh in time, and improves the use safety of the electric heating device.

[0008] In some embodiments, the grounding terminal is electrically connected to the power grounding wire of the air conditioner.

[0009] In some embodiments, two ends of the heating core are respectively a first power connection end and a second power connection end, and the electric heating device further includes: a power connector; a first wire, two ends of the first wire are respectively a first end and a second end, the first end is connected to the first power connection end, and the second end is connected to the power connector; a second wire, two ends of the second wire are respectively a third end and a fourth end, the third end is connected to the second power connection end, and the fourth end is connected to the power connector; a first head, the first head encloses the first end and the first power connection end; a second head, the second head encloses the third end, the second power connection end, an end of the metal mesh for connecting to the ground wire, and an end of the ground wire for connecting to the metal mesh.

[0010] In some embodiments, the second head includes a first part and a second part, the length directions of the first part and the second part are parallel, and a side surface between two length ends of the first part is connected to a side surface between two length ends of the second part; the first part encloses the third end and the second power connection end, and the electric heating tape and the second wire respectively extend out from two length ends of the first part; the second part encloses an end of the metal mesh for connecting to the ground wire and an end of the ground wire for connecting to the metal mesh, and the ground wire extends out from one length end of the second part.

[0011] In some embodiments, the electric heating device further includes: a wire protection sleeve, the wire protection sleeve encloses a part of the first wire between the first head and the power connector, a part of the second wire between the second head and the power connector, and a part of the ground wire between the second head and the ground terminal.

[0012] In some embodiments, the first end and the first power connection end are connected through a first connection terminal or directly welded; the third end and the second power connection end are connected through a second connection terminal or directly welded, and the ground wire and the metal mesh are connected through a third connection terminal or directly welded.

[0013] In some embodiments, both the first head and the second head are high-temperature resistant and ultraviolet resistant components.

[0014] In some embodiments, both the first head and the second head are silicone heads or thermoplastic tube heads.

[0015] In some embodiments, the heating core includes: an insulating core rope and a heating wire, the heating wire being wound around the insulating core rope; and / or, the insulating member includes an inner sleeve and an outer sleeve, the inner sleeve being sleeved outside the heating core, and the outer sleeve being sleeved outside the inner sleeve; and / or, the metal mesh is a woven mesh.

[0016] An air conditioner according to the second aspect of the present invention includes an outdoor heat exchanger and a motor heat device according to the first aspect of the present invention, and the electric heating belt is disposed below the outdoor heat exchanger and in a water receiving cavity of the chassis of the air conditioner.

[0017] The air conditioner according to the embodiment of the present invention, by providing the electric heating device according to the first aspect of the present invention, ensures that the water generated when the outdoor heat exchanger operates in a low-temperature environment does not condense and block in the water receiving cavity, but can be quickly drained away, thereby ensuring the normal operation of the outdoor heat exchanger and improving the working reliability of the air conditioner.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of an electric heating device according to an embodiment of the present invention;

[0020] Figure 2 is a structural sectional view of an electric heating belt according to an embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of the connection between the first end of an electric heating belt and a first wire according to an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of the connection between the second end of an electric heating belt and the first wire and a ground wire according to an embodiment of the present invention.

[0023] Reference Signs:

[0024] Electric heating device 100;

[0025] Electric heating belt 1; heating core 11; first power connection end 111; second power connection end 112; insulating core rope 11a; heating wire 11b; insulating member 12; inner sleeve 121; outer sleeve 122; metal mesh 13; end portion 131 of the metal mesh for connecting to the ground wire;

[0026] Grounding assembly 2; ground wire 21; end portion 211 of the ground wire for connecting to the metal mesh; grounding terminal 22;

[0027] Power connector 3;

[0028] The first wire 4; the first end 41; the second end 42;

[0029] The second wire 5; the third end 51; the fourth end 52;

[0030] The first sealing head 6;

[0031] The second sealing head 7; the first part 71; the second part 72;

[0032] The conductive wire protective sleeve 8;

[0033] The first connecting terminal 91; the second connecting terminal 92; the third connecting terminal 93. Specific embodiments

[0034] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0035] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the applicability of other processes and / or the use of other materials.

[0036] The electric heating device 100 according to the first aspect of the present invention will be described below with reference to the drawings.

[0037] The electric heating device 100 according to an embodiment of the present invention is used for an air conditioner. As Figure 1 shown, the electric heating device 100 includes: an electric heating tape 1 and a grounding assembly 2. The electric heating tape 1 is provided on the chassis of the air conditioner. As Figure 2 shown, the electric heating tape 1 includes a heating core 11, an insulating member 12, and a metal mesh 13. The insulating member 12 is provided between the heating core 11 and the metal mesh 13.

[0038] In winter or in cold regions, the outdoor temperature is very low. In the related art, the water generated by the outdoor heat exchanger is collected in the chassis and will condense into ice, affecting the normal operation of the outdoor heat exchanger. The electric heating device 100 of the present utility model is arranged on the chassis of the air conditioner to ensure that the water generated when the outdoor heat exchanger operates in a low-temperature environment does not condense and block in the chassis, but can be quickly drained away, thereby ensuring the normal operation of the air conditioner.

[0039] It should be noted that the chassis may only include a single chassis; or, the chassis may also be composed of a chassis body and a water receiving tray arranged on the chassis body. The electric heating tape is located in the water storage cavity to heat the water storage cavity, ensuring that the water generated when the outdoor heat exchanger operates in a low-temperature environment does not condense and block in the water storage cavity, but can be quickly drained away, thereby ensuring the normal operation of the air conditioner.

[0040] The electric heating tape 1 has a flexible structure and can change its layout shape to expand its application range. The heating core 11 of the electric heating tape 1 is powered on to generate heat for heating the chassis. The insulating member 12 is located on the outer periphery of the heating core 11 to insulate the heating core 11 from the outside, improving the safety of use. Since the outdoor environment is relatively harsh, the metal mesh 13 is coated on the outer periphery of the insulating member 12 to protect the internal insulating member 12 from being contaminated and damaged, reducing the occurrence of failure due to damage of the insulating member 12.

[0041] However, the heating core 11 generally uses an alternating voltage, which will generate a continuously changing magnetic field around the heating core 11, and the metal mesh 13 will generate an induced electromotive force. As long as the heating core 11 is working, an induced voltage will always be generated on the surface of the metal mesh 13. In the related art, if the induced voltage is not released in time, it may discharge to nearby metals and generate an electric arc. This is very dangerous for an outdoor heat exchanger using a flammable / flammable refrigerant such as R32 or R290 or R454B.

[0042] The embodiment of the present utility model is provided with a grounding assembly 2. The grounding assembly 2 includes a grounding wire 21 and a grounding terminal 22. One end of the grounding wire 21 is connected to the metal mesh 13, and the other end is connected to the grounding terminal 22. The grounding terminal 22 is adapted to be grounded. The grounding assembly 2 releases the induced voltage of the metal mesh 13 in time, improving the safety of use of the electric heating device 100.

[0043] According to the electric heating device 100 of the embodiment of the present utility model, by providing the grounding assembly 2, the grounding assembly 2 releases the induced voltage of the metal mesh 13 in time, improving the safety of use of the electric heating device 100.

[0044] In some embodiments of the present utility model, the grounding terminal 22 is electrically connected to the power supply grounding wire 21 of the air conditioner.

[0045] The electric heating device 100 is used for an air conditioner, is arranged below the outdoor heat exchanger of the air conditioner and is located in the water storage cavity, so as to ensure normal operation even when the outdoor temperature is relatively low.

[0046] Optionally, the air conditioner includes an air conditioner wall-mounted unit, an air conditioner floor-standing unit, a mobile unit, a window unit, a fresh air unit, a duct unit, etc.

[0047] The grounding terminal 22 is electrically connected to the power supply ground wire 21 of the air conditioner to ground the metal mesh 13 and release the induced voltage of the metal mesh 13 in time, thereby improving the use safety of the electric heating device 100. And with the connection design of the grounding terminal 22 and the power supply ground wire 21, the installation method of the grounding terminal 22 is simple, the connection reliability is strong, the induced voltage of the metal mesh 13 can be reliably released in time, and the use safety of the electric heating device 100 can be further improved.

[0048] In some embodiments of the present utility model, the two ends of the heating core 11 are respectively a first power connection end 111 and a second power connection end 112. As Figure 1 shown, the electric heating device 100 further includes: a power connector 3, a first wire 4 and a second wire 5. The two ends of the first wire 4 are respectively a first end 41 and a second end 42. The first end 41 is connected to the first power connection end 111, the second end 42 is connected to the power connector 3. The two ends of the second wire 5 are respectively a third end 51 and a fourth end 52. The third end 51 is connected to the second power connection end 112, and the fourth end 52 is connected to the power connector 3.

[0049] The power connector 3, the first wire 4, the heating core 11 and the second wire 5 form a complete loop. After the power connector 3 is connected to the power supply, the heating core 11 is energized to generate heat for heating the water storage cavity.

[0050] As Figure 3 and Figure 4 shown, the electric heating device 100 further includes: a first end cap 6 and a second end cap 7. The first end cap 6 wraps the first end 41 and the first power connection end 111. The second end cap 7 wraps the third end 51, the second power connection end 112, the end 131 of the metal mesh 13 for connecting to the ground wire 21, and the end 211 of the ground wire 21 for connecting to the metal mesh 13.

[0051] On the one hand, the first end cap 6 and the second end cap 7 can improve the connection reliability between the first end 41 and the first power connection end 111, the connection reliability between the third end 51 and the second power connection end 112, and the connection reliability between the metal mesh 13 and the ground wire 21, thereby improving the working reliability.

[0052] On the other hand, the first end cap 6 and the second end cap 7 can protect the internal first end 41, the first power connection end 111, the third end 51, the second power connection end 112, the metal mesh 13 and the ground wire 21, insulate the internal wiring connection from the outside world, and prevent external contaminants from contacting the internal wiring connection, thus extending the service life.

[0053] The second end cap 7 externally wraps the third end 51, the second power connection end 112, the end portion 131 of the metal mesh 13 for connecting with the ground wire 21, and the end portion 211 of the ground wire 21 for connecting with the metal mesh 13, that is, the ground wire 21 is connected to the metal mesh 13 near the second power connection end 112 of the electric heating tape 1. Compared with connecting the metal mesh in the middle part of the electric heating tape to the ground wire, connecting the metal mesh 13 at the end of the electric heating tape 1 to the ground wire 21 is simpler and has strong connection reliability.

[0054] And by connecting the metal mesh 13 at the end of the electric heating tape 1 to the ground wire 21, setting one second end cap 7 can meet the protection of the connection between the third end 51 and the second power connection end 112, as well as the protection of the connection between the metal mesh 13 and the ground wire 21, which can save end caps, reduce manufacturing costs, and also improve the assembly efficiency of the electric heating device 100.

[0055] In some embodiments of the present invention, as Figure 4 shown, the second end cap 7 includes a first part 71 and a second part 72. The length directions of the first part 71 and the second part 72 are parallel, and the side surfaces between the two length ends of the first part 71 are connected to the side surfaces between the two length ends of the second part 72. The first part 71 externally wraps the third end 51 and the second power connection end 112, and the electric heating tape 1 and the second wire 5 respectively extend out from the two length ends of the first part 71. The second part 72 externally wraps the end portion 131 of the metal mesh 13 for connecting with the ground wire 21 and the end portion 211 of the ground wire 21 for connecting with the metal mesh 13, and the ground wire 21 extends out from one length end of the second part 72.

[0056] The first part 71 and the second part 72 of the second end cap 7 are independent of each other. The first part 71 is used to externally wrap the connection between the third end 51 and the second power connection end 112, and the second part 72 is used to externally wrap the connection between the metal mesh 13 and the ground wire 21, which can avoid short circuits caused by the connection between the second wire 5 and the metal mesh 13 and improve working safety. And the electric heating tape 1 and the second wire 5 respectively extend out from the two length ends of the first part 71, and the ground wire 21 extends out from one length end of the second part 72, which can improve the regularity of wire routing.

[0057] The first part 71 and the second part 72 are connected into one body through the side part, which can reduce the space occupied by the second end cap 7, contribute to simplifying electrical wiring and improving the reliability of connection.

[0058] In some embodiments of the present utility model, as Figure 4 shown, the metal mesh 13 near the second power connection end 112 of the electric heating tape 1 extends from the first part 71 to the second part 72, and the end 131 of the metal mesh 13 is connected to the ground wire 21 within the second part 72.

[0059] In some embodiments of the present utility model, as Figure 1 shown, the electric heating device 100 further includes: a conductive wire protective sleeve 8, and the conductive wire protective sleeve 8 wraps the part of the first wire 4 between the first end cap 6 and the power connector 3, the part of the second wire 5 between the second end cap 7 and the power connector 3, and the part of the ground wire 21 between the second end cap 7 and the ground terminal 22.

[0060] On the one hand, the conductive wire protective sleeve 8 can play a protective role, isolating external contaminants from contacting the internal first wire 4, second wire 5, and ground wire 21, and prolonging the service life. On the other hand, the conductive wire protective sleeve 8 can also play a constraining role, limiting the first wire 4, the second wire, and the ground wire 21, improving the regularity of the wire routing, avoiding the internal wire harness from moving due to shaking, and improving the working reliability of the electric heating device 100.

[0061] In some embodiments of the present utility model, as Figure 3 and Figure 4 shown, the first end 41 is connected to the first power connection end 111 through a first connection terminal 91, the third end 51 is connected to the second power connection end 112 through a second connection terminal 92, and the ground wire 21 and the metal mesh 13 are connected through a third connection terminal 93. The connection is made through connection terminals, and the connection operation is simple, which can improve the assembly efficiency of the electric heating device 100.

[0062] In some other embodiments of the present utility model, the first end 41 is directly welded to the first power connection end 111, the third end 51 is directly welded to the second power connection end 112, and the ground wire 21 and the metal mesh 13 are directly welded. The connection is made through welding, which can improve the connection reliability.

[0063] It should be noted that the connection between the first end 41 and the first power connection end 111, the connection between the third end 51 and the second power connection end 112, and the connection between the metal mesh 13 and the ground wire 21 can also adopt a mixed connection method of connection terminals and welding. For example, the first end 41 is connected to the first power connection end 111 through a first connection terminal 91, the third end 51 is connected to the second power connection end 112 through a second connection terminal 92, and the ground wire 21 and the metal mesh 13 are directly welded, which also falls within the protection scope of the present utility model.

[0064] It is also worth noting that the above two connection methods are for illustrative purposes. After reading the above technical solutions, those skilled in the art can obviously understand that the first end 41 and the first power connection end 111 can be connected, the third end 51 and the second power connection end 112 can be connected, and the metal mesh 13 and the ground wire 21 can be connected by using other connection methods, which also fall within the protection scope of the present invention.

[0065] In some embodiments of the present invention, both the first end cap 6 and the second end cap 7 are high-temperature resistant and ultraviolet-proof components.

[0066] The first end cap 6 and the second end cap 7 can reliably protect the connection parts of the first end 41 and the first power connection end 111, the connection parts of the third end 51 and the second power connection end 112, and the connection part of the metal mesh 13 and the ground wire 21 inside for a long time in the outdoor environment, improving the working reliability of the motor heating device.

[0067] In some embodiments of the present invention, both the first end cap 6 and the second end cap 7 are silicone end caps.

[0068] In some other embodiments of the present invention, both the first end cap 6 and the second end cap 7 are thermoplastic tube end caps.

[0069] The first end cap 6 and the second end cap 7 have strong sealing reliability and good waterproof performance, ensuring that no matter how harsh the environment is, the heating core 11 can be reliably powered for a long time, thereby improving the working stability; the metal mesh 13 can be reliably grounded for a long time, thereby ensuring that the induced voltage can be released in time.

[0070] In some embodiments of the present invention, as Figure 2 shown, the heating core 11 includes: an insulating core rope 11a and a heating wire 11b, and the heating wire 11b is wound around the insulating core rope 11a. The insulating core rope 11a supports the installation of the heating wire 11b, and the heating wire 11b is used for power connection and heating.

[0071] As Figure 3 shown, the first power connection end 111 of the heating core 11 is connected by the heating wire 11b and the first wire 4. As Figure 4 described, the second power connection end 112 of the heating core 11 is connected by the heating wire 11b and the second wire 5.

[0072] In some embodiments of the present invention, as Figure 2 shown, the insulating member 12 includes an inner sleeve 121 and an outer sleeve 122. The inner sleeve 121 is sleeved outside the heating core 11, and the outer sleeve 122 is sleeved outside the inner sleeve 121. Through double sleeve insulation, the use safety of the motor heating device can be improved.

[0073] In some embodiments of the present invention, as Figure 2As shown, the metal mesh 13 is a woven mesh. The woven mesh has stronger tensile and compressive capabilities, and can reduce stress concentration points, enhancing the durability of the metal mesh 13. Moreover, the woven mesh helps with heat dissipation, quickly conducting the heat generated by the heating core 11, and enhancing the working reliability of the motor heating device.

[0074] An air conditioner according to an embodiment of the second aspect of the present utility model includes an outdoor heat exchanger and an electric heating device 100. The electric heating device 100 is the electric heating device 100 according to the embodiment of the first aspect of the present utility model. The electric heating belt 1 is disposed below the outdoor heat exchanger and within the water receiving cavity of the chassis of the air conditioner.

[0075] According to the air conditioner of the embodiment of the present utility model, by providing the electric heating device 100 according to the embodiment of the first aspect of the present utility model, it is ensured that the water generated when the outdoor heat exchanger operates in a low-temperature environment does not condense and block within the water receiving cavity, but can be quickly drained away, thereby ensuring the normal operation of the outdoor heat exchanger and enhancing the working reliability of the air conditioner.

[0076] In some other embodiments of the present application, the electric heating belt 1 is disposed within the water receiving cavity defined by the water receiving tray. The arrangement of the motor heating belt 1 can be flexibly set according to different models of the air conditioner.

[0077] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0078] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0079] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or also a communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0080] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0081] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0082] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An electric heating device, characterized in that: The electric heating device is used for an air conditioner and comprises: An electric heating belt, the electric heating belt is arranged on the chassis of the air conditioner, the electric heating belt comprises a heating core, an insulating member and a metal mesh, and the insulating member is arranged between the heating core and the metal mesh; A grounding component, the grounding component comprises a grounding wire and a grounding terminal, one end of the grounding wire is connected to the metal mesh, and the other end is connected to the grounding terminal, and the grounding terminal is suitable for grounding.

2. The electric heating device according to claim 1, characterized in that: The ground terminal is electrically connected to a power ground line of the air conditioner.

3. The electric heating device according to claim 1 or 2, characterized in that: The two ends of the heating core are respectively a first power connection end and a second power connection end, and the electric heating device further comprises: Power connector; A first wire, wherein two ends of the first wire are respectively a first end and a second end, the first end is connected to the first power connection end, and the second end is connected to the power connector; A second wire, wherein two ends of the second wire are respectively a third end and a fourth end, the third end is connected to the second power connection end, and the fourth end is connected to the power connector; a first sealing head, the first sealing head outsourcing the first end and the first power connection end; A second sealing head, wherein the second sealing head outwardly encloses the third end, the second power connection end, the end of the metal mesh used for connecting to the grounding wire, and the end of the grounding wire used for connecting to the metal mesh.

4. The electric heating device according to claim 3, characterized in that: The second end cap comprises a first part and a second part, the first part is parallel to the length direction of the second part, and the side surface between the two ends of the length of the first part is connected to the side surface between the two ends of the length of the second part; The first part surrounds the third end and the second power connection end, and the electric heating belt and the second wire extend from two ends of the length of the first part respectively; The second part surrounds the end of the metal mesh used for connecting to the grounding wire and the end of the grounding wire used for connecting to the metal mesh, and the grounding wire extends from one end of the length of the second part.

5. The electric heating device according to claim 3, characterized in that: Also includes: A conductive wire protective cover, wherein the conductive wire protective cover covers a portion of the first conductive wire located between the first seal and the power connector, a portion of the second conductive wire located between the second seal and the power connector, and a portion of the grounding wire located between the second seal and the grounding terminal.

6. The electric heating device according to claim 3, characterized in that: The first end and the first power connection end are connected through a first connection terminal or directly welded; the third end and the second power connection end are connected through a second connection terminal or directly welded, and the ground wire and the metal mesh are connected through a third connection terminal or directly welded.

7. The electric heating device according to claim 3, characterized in that: The first sealing head and the second sealing head are both high temperature resistant and UV resistant.

8. The electric heating device according to claim 7, characterized in that: The first sealing head and the second sealing head are both silicone sealing heads or thermoplastic pipe sealing heads.

9. The electric heating device according to claim 1, characterized in that: The heating core comprises: an insulating core rope and a heating wire, wherein the heating wire is wound around the insulating core rope; And / or, the insulating member comprises an inner sleeve and an outer sleeve, the inner sleeve is arranged outside the heating core, and the outer sleeve is arranged outside the inner sleeve; And / or, the metal mesh is a woven mesh.

10. An air conditioner, characterized in that: It comprises an outdoor heat exchanger and an electric heating device according to any one of claims 1 to 9, wherein the electric heating belt is arranged below the outdoor heat exchanger and located in a water storage cavity of a chassis of the air conditioner.

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