RU2805579C1 - Spraying unit, made with possibility of reliable connection of electrodes, and spraying device - Google Patents

Abstract

FIELD: spraying.

SUBSTANCE: invention relates to a spray unit and a spray device. The spray unit includes a heating unit, a cover, a base and an electrode. The heating unit includes a heating element and a support. On one of the lid and base there is a chamber which is open towards the other of the lid and base. The heating unit is located in the chamber. The heating element is laterally integrated with the top of the support to provide support from the support. The heating unit is located between the lid and the base. The heating element includes a main part used for heating and atomizing liquid, and an electrical connection part connected to the main part. The electrical connection portion is curved from the top of the pole to one side of the pole. The electrode is in contact with a portion of the electrical connection portion curved toward one side of the support.

EFFECT: increasing the strength of the heating element; the electrode can be easily and reliably electrically connected to the electrical connection portion of the heating element.

15 cl, 16 dwg

Description

TECHNICAL FIELD

[0001] The present invention relates to the technical field of spraying, in particular to a spray assembly and a spray device.

BACKGROUND OF THE ART

[0002] With reference to FIG. 1, the spray assembly in many spray devices generally includes a liquid transfer unit 31 and a heating element 32, the liquid being transferred by the liquid transfer unit 31 to the heating element 32 for heating and atomization, and the heating element 32 is electrically connected to an external battery. The heating element 32 and electrodes 33 of existing spray units in the art are connected in two ways. According to the first, a wire is welded to the heating element 32, and the heating element 32 is connected to the electrode 33 of the spray assembly through the wire; with this connection, the contact resistance is low and the resistance is stable; However, welding defects are easy to occur, and the wire is soft and not suitable for automatic assembly, and manual assembly is required, which is labor-intensive. According to the second, the electrodes 33 are connected to the contacts of the heating element 32 of the spray unit. The electrodes 33 are longitudinally adjacent to the heating elements 32, and vertical (longitudinal) electrodes 33 that are in direct contact with contacts at the bottom of the heating element 32 are often used in the art today; However, due to the fact that the spray assembly is assembled vertically, problems of large contact resistance and unreliable contact may be caused due to inaccurate dimensions or deformation of the upper and lower parts in the connection, which in turn affects the use experience. Thus, it is of great importance to provide a spray assembly that is simple, reliable and stable in contact, as well as a connection method for the electrodes 33 of the spray assembly.

DISCLOSURE OF THE INVENTION

[0003] The technical problem to be solved by the present invention is to provide, due to the shortcomings of the prior art, a spray unit in which the electrode connection is convenient and reliable, as well as a spray device.

[0004] The technical solution proposed in the present invention to solve the specified technical problem includes: providing a spray unit containing a cap, a base, a heating unit and an electrode. On one of the lid and base there is a chamber which corresponds to the heating unit and is open towards the other of the lid and base. The heating unit is located in the chamber, the lid is combined with the base, the heating unit is located between the cover and the base. The heating unit includes a support and a heating element, the heating element contains a main part and an electrical connection part connected to the main part, the main part contains a heating circuit configured to generate heat for heating and atomizing liquid, and the heating element is laterally integrated with the upper part. part of the support so that the heating element is supported by the support. The electrical connection part is curved from the top of the post to one side of the post, or the electrical connection part is curved from the top of the post to one side of the post and then curved to the bottom of the post, or the electrical connection part is curved from the top of the post to one side support and then brought into interaction with the support.

[0005] The electrode includes a first portion, a second portion, and a third portion that are connected to each other, the first portion being located on a transverse side of the electrical connection portion, and the side surface of the first portion being in contact with at least a portion of the electrical connection portion, curved towards one side of the support to make an electrical connection, a second part is connected to the base, and a third part is open to the outside of the base to make contact with an external circuit to make an electrical connection.

[0006] Preferably, the first part and the second electrode part are rod-shaped, the radial size of the third part is larger than the radial size of the first part and the second part, and the base is provided with an electrode hole extending longitudinally through the base. After the first portion and the second portion pass in the longitudinal direction through the electrode hole, the second portion is connected to the base, and the side surface of the first portion is in contact with a portion of the electrical connection portion curved toward one side of the support.

[0007] Preferably, two parts for electrical connection are located at two ends of the main part, respectively. The spray unit contains two electrodes. The side surfaces of the first parts of the two electrodes are in contact with the two parts for electrical connection, respectively, and the heating unit is placed between the two electrodes.

[0008] Preferably, the electrode is an elastic plate, the second part is integrated with the base, and the first part is located on one side of the heating unit, curved towards one side of the support or curved towards one side and the bottom of the support and is in elastic contact with the electrical part. connections.

[0009] Preferably, the first portion is connected to the upper end of the second portion and is bent downward to form an arcuate portion that is bent upward, and the first portion is bent downward to form contact with a portion of the electrical connection portion bent toward one side of the support and then bent toward the lower part of the support to form contact with a portion of the electrical connection part curved towards the lower part of the support.

[0010] Preferably, the cover presses a side of the first electrode portion opposite the electrical connection portion such that the first portion is resiliently pressed against the electrical connection portion.

[0011] Preferably, a protective film is formed on the surface of the electrode and/or on the surface of the electrical connection portion of the heating element by galvanizing to prevent oxidation of the contact point of the electrode and the electrical connection portion to avoid increasing the contact resistance.

[0012] Preferably, two parts for electrical connection are located at two ends of the main part, respectively. The spray unit contains two of these electrodes. The first parts of the two electrodes are in elastic contact with the two electrical connection parts, respectively, and the heating unit is placed between the two electrodes.

[0013] Preferably, an electrode hole is formed in the base, the second part of the electrode corresponds to the electrode hole for connecting the electrode to the base, and the upper part of the electrode hole is higher than the inner bottom surface of the base, so that liquid in the spray assembly is prevented from leaking from the gap in holes for the electrode.

[0014] Preferably, the support includes a transverse wall and a longitudinal wall, a heating element is integrated with an upper part of the transverse wall, a longitudinal wall is connected to a lower edge of the transverse wall, and an air hole is formed in the transverse wall extending longitudinally through the transverse wall, the main part The heating element is integrated in the transverse direction with the transverse wall, and the electrical connection part is curved from the transverse wall to the side surface of the longitudinal wall.

[0015] Preferably, an air passage extending transversely through the longitudinal wall is formed in the longitudinal wall, and its position corresponds to the main part of the heating element, so that the gas generated by heating the heating element and atomizing flows out sequentially through the air hole and the air passage .

[0016] The support is preferably made of an insulating material, and the support is integrally or separably integrated with the heating element.

[0017] Preferably, the atomizing unit includes a liquid transfer unit, the chamber corresponds to the heating unit and the liquid transfer unit, and the liquid transfer unit is located in the chamber and is in contact with the heating element main part, so that the liquid is transferred by the liquid transfer unit to the main part for heating and spraying.

[0018] Preferably, the support is made of a material capable of carrying liquid such that the liquid is carried by the support to the heating element for heating and atomization.

[0019] The technical solution proposed in the present invention to solve the specified technical problem includes: providing a spray device containing a shell, and the above-described spray unit located on the shell, wherein the shell is provided with a liquid supply device and a gas release device, and the liquid is supplied by the liquid delivery device to the heating element to be heated and atomized to generate gas, which flows out through the gas release device.

[0020] By adopting a technical solution, the invention has at least the following beneficial effects: in accordance with the atomizing unit, the heating element is supported by a support to improve the strength of the heating element; and the electrode can be easily and reliably electrically connected to the electrical connection portion of the heating element.

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. On the drawings:

[0022] In FIG. 1 is an internal structural view of the liquid transfer unit, heating element, and electrodes of a conventional spray assembly.

[0023] In FIG. 2 is a perspective view of a spray assembly according to an embodiment of the invention.

[0024] FIG. 3 is a sectional view along line A-A of FIG. 2.

[0025] FIG. 4 is a partial enlarged view of part P of FIG. 3.

[0026] FIG. 5 is a sectional view of the cover of FIG. 3.

[0027] In FIG. 6 is a perspective view of the heating unit of FIG. 3 according to one embodiment of the invention.

[0028] FIG. 7 is an exploded view of the heating assembly of FIG. 6.

[0029] FIG. 8 is a perspective view of the heating assembly of FIG. 3 according to another embodiment.

[0030] FIG. 9 is an exploded view of the heating assembly of FIG. 8.

[0031] FIG. 10 is a perspective view of a spray assembly according to another embodiment of the invention.

[0032] FIG. 11 is a sectional view taken along line BB of FIG. 10.

[0033] FIG. 12 is a sectional view taken along line BB of FIG. 10 according to another embodiment.

[0034] FIG. 13 is a partial enlarged view of part N of FIG. 12.

[0035] FIG. 14 is a perspective view of a spray device according to another embodiment of the invention.

[0036] FIG. 15 is an exploded view of the spray device assembly of FIG. 14;

[0037] FIG. 16 is a sectional view along line C-C of FIG. 14.

[0038] Reference Symbols 1, spray assembly; 11, heating unit; 111, heating element; 1111, main part; 11111, heating circuit; 1112, electrical connection part; 112, support; 1121, transverse wall; 1122, longitudinal wall; 1123, air hole; 1124, air passage; 12, liquid transfer unit; 13, cover; 131, connection hole for electrode; 14, base; 141, hole for electrode; 15, camera; 16, electrode; 161, first part; 162, second part; 163, third part; 164, arcuate part; 2, shell; 21, liquid storage chamber; 22, gas release passage; 31, prior art liquid transfer unit; 32, prior art heating element; 33, prior art electrode.

IMPLEMENTATION OF THE INVENTION

[0039] To better understand the technical features, objects and effects of the present invention, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that terms such as “front”, “rear”, “top”, “bottom”, “left”, “right”, “longitudinal”, “transverse”, “vertical”, “horizontal”, “top” "", "bottom", "inner", "outer", "head" and "tail" are used to indicate directional or positional relationships, as well as configuration and operation in specific directions based on the accompanying drawings only to facilitate the present description of the technical solution according to this invention, and do not indicate that the mentioned devices or elements must be located in a particular direction, so they should not be construed as limiting the technical solution of the present invention. It should be noted that, unless otherwise expressly stated or defined, terms such as “establish”, “connect”, “connect”, “fasten” and “position” are to be understood in a broad sense. For example, the term "connect" may refer to a rigid connection, a detachable connection or union, or a direct connection, an indirect connection through an intermediate medium, or an internal connection or interaction of two elements. When one element is referred to as being "over" or "under" another element, it may be located on said other element "directly" or "indirectly", or one or more intermediate elements may be located between the two elements. Terms such as "first", "second" and "third" in the present specification and claims are used only for convenience of describing the technical solution according to the present invention and should not be construed as indicating or implying relative importance or as implicitly indicating the number of technical signs. Thus, when a feature is defined by terms such as “first,” “second,” and “third,” it may explicitly or implicitly indicate the inclusion of one or more of those features. Those skilled in the art will understand the specific meanings of these terms in the invention depending on the circumstances.

[0040] To provide a complete understanding of the embodiments of the invention, specific details such as system designs and methods are set forth in the following description for the purpose of description and not limitation. It will be apparent to those skilled in the art that the invention may also be practiced in other embodiments without these specific details. In other cases, detailed descriptions of generally known systems, devices, circuits, and methods are omitted to ensure that the invention can be described without unnecessary detail.

[0041] With reference to FIG. 2 - fig. 7, the spray unit 1 according to an embodiment of the present invention includes a cover 13, a base 14, a heating unit 11 and an electrode 16. On one of the cover 13 and the base 14 there is a chamber 15 that matches the heating unit 11 in size and shape and is open towards the other from the cover 13 and the base 14, and preferably the chamber is located on the cover. The heating unit 11 is located in the chamber 15, the cover 13 is assembled with the base 14, and the heating unit 11 is located between the cover 13 and the base 14. The heating unit 11 includes a support 112 and a heating element 111. The heating element 111 includes a main part 1111 and a part 1112 for electrical connection connected to the main part 1111. The main part 1111 includes a heating circuit 11111 used to generate heat for heating and atomizing liquid, and the heating element 111 is laterally in contact with the top of the support 112, so that the heating element 111 is supported by the support 112. Part An electrical connection portion 1112 is curved from the top of the support 112 to one side of the support 112, or an electrical connection portion 1112 is curved from the top of the support 112 to one side of the support 112 and then curved toward the bottom of the support 112, or an electrical connection portion 1112 is curved away from the top of the support 112 to one side of the support 112 and then engaged with the support 112.

[0042] The electrode 16 includes a first portion 161, a second portion 162, and a third portion 163, which are connected to each other. The first portion 161 is located on the transverse side of the electrical connection portion 1112, the side surface of the first portion 161 is at least in contact with a portion of the electrical connection portion 1112 curved toward one side of the support 112 to effect electrical connection. The second part 162 is connected to the base. The third portion 163 is open on the outside of the base 14 to come into contact with external circuitry to make an electrical connection.

[0043] According to the atomizing unit 1, the heating element 111 is supported by a support 112 to improve the strength of the heating element 111; and the electrode 16 can be easily and reliably electrically connected to the electrical connection portion 1112 of the heating element 111.

[0044] With reference to FIG. 6 - fig. 7, in some embodiments, the electrical connection portion 1112 may be bent from the top of the support 112 to one side of the support 112. Referring to FIG. 8 - fig. 9, in some embodiments, the electrical connection portion 1112 may be bent from the top of the support 112 to one side of the support 112 and then bent towards the bottom of the support 112 so that the support can be better wrapped and loose contact caused by deformation due to deflection is prevented. parts 1112 for electrical connection of the heating element 111 when inserting the electrode.

[0045] With reference to FIG. 12 - fig. 13, in some embodiments, the electrical connection portion 1112 is curved from the top of the support 112 to one side of the support 112 and then engages with the support 112. The support 112 is preferably made of plastic, and the heating element 111 and the support 112 can be secured together by injection molded, so that the structure is more durable.

[0046] With reference to FIG. 12 - fig. 13, in some embodiments, an electrode hole 141 is formed in the base 14, a second portion 162 of the electrode 16 corresponds to an electrode hole 141 for connecting the electrode 16 to the base 14. An upper portion (M in FIG. 12 and FIG. 13) of the electrode hole 141 higher than the inner lower surface of the base 14, so that the liquid in the spray unit 1 is prevented from leaking from the gap of the electrode hole 141.

[0047] With reference to FIG. 2 - fig. 5, in some embodiments, the first portion 161 and the second portion 162 of the electrode 16 are rod-shaped, the radial dimension of the third portion 163 being larger than the radial dimension of the first portion 161 and the second portion 162. An electrode hole 141 is formed in the base 14 extending in the longitudinal direction. through the base 14. After the first part 161 and the second part 162 pass in the longitudinal direction through the electrode hole 141, the second part 162 is connected to the base 14, and the side surface of the first part 161 is in contact with a portion of the electrical connection part 1112 curved to one side supports 112.

[0048] Two electrical connection portions 1112 are located at two ends of the main portion 1111, respectively, the atomizer assembly 1 includes two electrodes 16, the side walls of the first portions 161 of the two electrodes 16 are in contact with the two electrical connection portions 1112, respectively, and the heating node 11 is placed between two electrodes 16.

[0049] Preferably, the cover 13 is provided in the longitudinal direction with an electrode connecting hole 131 configured to receive the electrode 16 and a corresponding electrode hole 141. The electrode connection hole 131 is open towards the electrode hole 141, and the electrode 16 passes through the electrode hole 141 and is inserted into the electrode connection hole 131. When the spray unit 1 is assembled, the cover 13, heating unit 11 and base 14 are first assembled, and then the electrode 16 is inserted into the electrode hole 141 so that the electrode 16 and the heating element 111 are electrically connected.

[0050] The chamber 15 and the electrode connection hole 131 are located on one side of the cover 13.

[0051] The first portion 161 of the electrode 16 may be electrically connected to a charger of the atomization unit 1 for charging.

[0052] In some embodiments, as shown in FIG. 10-11, electrode 16 is made in the form of an elastic plate. The second portion 162 of the electrode 16 is integrated with the base 14. The first portion 161 of the electrode 16 is located on one side of the heating assembly 11, curved toward one side of the support 112, or curved toward one side and the bottom of the support 112, and is in elastic contact with the electrical connection portion 1112 . The exposed third portion 163 of the electrode 16 may be electrically coupled to a charger of the spray unit 1 for charging.

[0053] The first portion 161 is connected to the upper end of the second portion 162 and is bent downward to form an arcuate portion 164 that is bent upward, and the first portion 161 is bent downward to form contact with a portion of the electrical connection portion 1112 bent toward one side of the support 112, and then curved toward the bottom of the support 112 to form contact with a portion of the electrical connection portion 1112 curved toward the bottom of the support 112.

[0054] The cover 13 is fitted with a slight interference fit on the first part 161 of the electrode 16 in the form of an elastic plate, and the cover 13 presses the side of the electrode 16 opposite the electrical connection part 1112, so that the first part 161 is elastically pressed against the electrical connection part 1112 . Because the first portion 161 is further pressed against the electrical connection portion 1112, the contact resistance is lower and the contact is more stable.

[0055] The resilient plate electrode may interact with the base by bending after insertion into the base or by injection molding into a mold. The elastic plate electrode can be formed by stamping to achieve low cost and elasticity, whereby good contact can be formed with the electrical connection portion 1112 of the heating element 111, and the size requirement of the parts is not strict. To ensure good contact and low contact resistance, the electrode 16 and the electrical connection portion 1112 of the heating element 111 may be galvanized so that, through galvanization, protective films are formed on the surface of the electrode 16 and/or on the surface of the electrical connection portion 1112 of the heating element 111. According to usage requirements, the protective film may be formed by electroplating such as gold plating, nickel plating or chrome plating to prevent oxidation of the contact point of the electrode 16 and the electrical connection portion 1112 to avoid increasing the contact resistance. In fig. 11, position Q is a position in which the cover 13 presses the electrical connection portion 1112.

[0056] Two electrical connection portions 1112 are located at two ends of the main portion 1111, respectively, the spray assembly 1 includes two electrodes 16, the side walls of the first portions 161 of the two electrodes 16 are in elastic contact with the two electrical connection portions 1112, respectively, and heating unit 11 is placed between two electrodes 16.

[0057] The support 112 includes a transverse wall 1121 and a longitudinal wall 1122 surrounding the transverse wall 1121, a heating element 111 is attached to and contacts the top of the transverse wall 1121, the longitudinal wall 1122 is connected to the lower edge of the transverse wall 1121, and in the transverse wall 1121 an air hole 1123 is formed extending longitudinally through the transverse wall 1121. The main body 1111 of the heating element 111 is attached to and contacts the transverse wall 1121 in the transverse direction, and electrical connection portions 1112 are curved from the transverse wall 1121 to the side surfaces of the longitudinal wall 1122. In the longitudinal wall 1122, an air passage 1124 is formed, extending transversely through the longitudinal wall 1122, and its position corresponds to the main part of the heating element, so that the gas generated by heating the heating element 111 and atomizing flows out sequentially through the air hole 1123 and the passage 1124 for air.

[0058] The support 112 is made of an insulating material and is integrally or separably integrated with the heating element 111.

[0059] The lateral dimension of the liquid transfer unit 12 corresponds to the lateral dimension of the chamber 15. The support 112 supports the lower portion of the heating element 111; the lateral dimension of the heating element 111 corresponds to the lateral dimension of the support 112, and preferably the lateral dimension of the heating element 111 is equal to the lateral dimension of the support 112.

[0060] In some embodiments, with reference to FIG. 3 and fig. 11, the spray unit 1 includes a liquid transfer unit 12, the chamber 15 corresponds to the heating unit 11 and the liquid transfer unit 12, and the liquid transfer unit 12 is located in the chamber and is in contact with the main part 1111 of the heating element 111, so that the liquid is transferred by the transfer unit 12 liquid to the main part 1111 for heating and atomization. In some other embodiments, the support 112 is made of a material capable of carrying liquid, such as ceramic, provided internally with multiple pores, there is no liquid transfer unit, and the liquid is carried by the support 112 to the heating element 111 for heating and atomization.

[0061] With reference to FIG. 14 - fig. 16, the spray device according to an embodiment of the present invention includes a shell 2 and the above-described spray unit 1 located in the shell 2. The shell is provided with a liquid supply device and a gas release device. The liquid supply device communicates with the liquid transfer unit 12 so that the liquid is transferred to the liquid transfer unit 12 through the liquid supply device, and then transferred by the liquid transfer unit 12 to the heating element 111 for heating and atomizing to produce gas, which flows through the device to release gas. Preferably, the liquid supply device includes a liquid storage chamber 21, and the gas release device includes a gas release passage 22.

[0062] Thus, in the atomization unit 1 and the atomization device, the electrodes 16 and the heating element 111 are easily and reliably electrically connected. A method that does not require welding of wires can be used. The electrodes 16 are located on two sides of the heating element 111, and the side surfaces of the electrodes 16 are in contact with the electrical connection parts 1112 of the heating element 111.

[0063] The present invention has the following advantages:

[0064] 1. Wire welding is not needed, so labor is saved, subsequent automatic assembly is simplified, and the situation where the automatic unit 1 does not work due to open circuit caused by poor welding is prevented.

[0065] 2. The contact portion of the electrode 16 in contact with the heating element 111 is located on the side surface of the heating unit 11 and is independent of the size of the upper and lower structures of the unit, which prevents unreliable contact caused by poor precision.

[0066] 3. Generally, the number of electrodes 16 is two, the two electrodes 16 are located on two sides of the heating unit, respectively, the contact portions of the electrodes 16 in contact with the heating element 111 are located on the side surfaces of the electrical connection parts 1112 of the heating element 111, and the heating unit is sandwiched between the side surfaces of the two electrodes 16, so that good contact is ensured, and the heating unit 11 is fixed.

[0067] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications, combinations and changes can be made to the present invention by those skilled in the art. Any changes, equivalent replacements and improvements made on the basis of the essence and principle of the invention must be included in the scope of protection of the invention.

Claims (16)

1. Spray unit (1), characterized in that it contains a cover (13), a base (14), a heating unit (11) and an electrode (16), and a chamber is located on one of the cover (13) and the base (14) (15), which corresponds to the heating unit (11) and is open towards the other of the cover (13) and the base (14), the heating unit (11) is located in the chamber (15), the cover (13) is combined with the base (14) , the heating unit (11) is placed between the cover (13) and the base (14); the heating unit (11) contains a support (112) and a heating element (111), the heating element (111) contains a main part (1111) and an electrical connection part (1112) connected to the main part (1111), the main part contains a heating circuit (11111) configured to generate heat for heating and atomizing liquid, and the heating element (111) is laterally integrated with the upper part of the support (112), so that the heating element (111) is supported by the support (112); an electrical connection portion (1112) is bent from the top of the support (112) to one side of the support (112), or an electrical connection portion (1112) is bent from the top of the support (112) to one side of the support (112) and then bent to a lower portion of the support (112), or an electrical connection portion (1112) is bent from the top of the support (112) to one side of the support (112) and then engaged with the support (112); the electrode (16) contains a first part (161), a second part (162) and a third part (163), which are connected to each other, the first part (161) being located on the transverse side of the electrical connection part (1112), and the side surface the first part (161) is at least in contact with a portion of the electrical connection part (1112) curved toward one side of the support (112) to effect electrical connection; the second part (162) is connected to the base (14), and the third part (163) is open on the outside of the base (14) to contact the external circuit for electrical connection. 2. Spray assembly (1) according to claim 1, characterized in that the first part (161) and the second part (162) of the electrode (16) are rod-shaped, the radial size of the third part (163) is larger than the radial size of the first part ( 161) and the second part (162), and in the base (14) a hole (141) for the electrode is formed, which extends in the longitudinal direction through the base (14); after passing in the longitudinal direction of the first part (161) and the second part (162) through the electrode hole (141), the second part (162) is connected to the base (14), and the side surface of the first part (161) is in contact with a portion of the part (1112) for electrical connection, bent towards one side of the support (112). 3. Spray unit (1) according to claim 2, characterized in that the two specified parts (1112) for electrical connection are located at the two ends of the main part (1111), respectively, the spray unit (1) contains two specified electrodes (16), side the surfaces of the first parts (161) of the two electrodes (16) are in contact with the two parts (1112) for electrical connection, respectively, and the heating unit (11) is placed between the two said electrodes (16). 4. Spray unit (1) according to claim 1, characterized in that the electrode (16) is made in the form of an elastic plate, the second part (162) is combined with the base (14), and the first part (161) is located on one side of the heating unit (11), curved towards one side of the support (112) or curved towards one side and the bottom of the support (112) and is in elastic contact with the electrical connection part (1112). 5. Spray assembly (1) according to claim 4, characterized in that the first part (161) is connected to the upper end of the second part (162) and is bent downward to form an arcuate part (164), which is bent upward, and the first part (161 ) is curved downward to form contact with the portion of the electrical connection portion (1112) curved toward one side of the support (112), and then curved toward the bottom of the support (112) to form contact with the portion of the electrical connection portion (1112) curved toward the bottom of the support (112). 6. Spray assembly (1) according to claim 4 or 5, characterized in that the cover (13) presses the side of the first part (161) of the electrode (16) opposite to the part (1112) for electrical connection, so that the first part (161) resiliently pressed against the electrical connection portion (1112). 7. Spray unit (1) according to claim 4 or 5, characterized in that a protective film is formed on the surface of the electrode (16) and/or on the surface of the part (1112) for electrically connecting the heating element (111) by galvanizing to prevent oxidation of the site contact of the electrode (16) and the electrical connection part (1112), so as to avoid an increase in contact resistance. 8. Spray unit (1) according to claim 4 or 5, characterized in that the two specified parts (1112) for electrical connection are located at the two ends of the main part (1111), respectively, the spray unit (1) contains two specified electrodes (16) , the first parts (161) of the two electrodes (16) are in elastic contact with the two parts (1112) for electrical connection, respectively, and the heating unit (11) is placed between the two said electrodes (16). 9. Spray unit (1) according to claim 4 or 5, characterized in that a hole (141) for the electrode is formed in the base (14), the second part (162) of the electrode (16) corresponds to the hole (141) for the electrode for connecting the electrode (16) with the base (14), and the top of the electrode hole (141) is higher than the inner bottom surface of the base (14), so that the liquid in the spray unit (1) is prevented from leaking from the gap in the electrode hole (141). 10. Spray assembly (1) according to claim 1, characterized in that the support (112) contains a transverse wall (1121) and a longitudinal wall (1122), a heating element (111) is combined with the upper part of the transverse wall (1121), the longitudinal wall (1122) is connected to the lower edge of the transverse wall (1121), and an air hole (1123) is formed in the transverse wall, extending in the longitudinal direction through the transverse wall (1121), the main part (1111) of the heating element (111) is combined in the transverse direction with the transverse wall (1121), and the electrical connection portion (1112) is curved from the transverse wall (1121) to the side surface of the longitudinal wall (1122). 11. Spray unit (1) according to claim 10, characterized in that a passage (1124) for air is formed in the longitudinal wall (1122), passing transversely through the longitudinal wall (1122), and its position corresponds to the main part (1111) of the heating element (111), so that the gas generated by heating the heating element (111) and atomizing flows out sequentially through the air hole (1123) and the air passage (1124). 12. Spray unit (1) according to claim 1, characterized in that the support (112) is made of insulating material and is integrally or separably combined with the heating element (111). 13. Spray unit (1) according to claim 1, characterized in that the spray unit (1) contains a liquid transfer unit (12), a chamber (15) corresponds to a heating unit (11) and a liquid transfer unit (12), and a unit ( 12) liquid transfer is located in the chamber (15) and is in contact with the main part (1111) of the heating element (111), so that the liquid is transferred by the liquid transfer unit (12) to the main part (1111) for heating and atomization. 14. Spray assembly (1) according to claim 1, characterized in that the support (112) is made of a material capable of carrying liquid so that the liquid is carried by the support (112) to the heating element (111) for heating and atomization. 15. Spray device, characterized in that it contains a shell (2) and a spray unit (1) according to any one of claims. 1-14 located on the shell (2), wherein the shell (2) is provided with a liquid supply device and a gas release device, and the liquid is supplied by a liquid delivery device to the heating element (111) for heating and spraying to generate gas, which flows out through the gas release device.