Handheld fan

Abstract

The embodiment of the utility model relates to the technical field of temperature regulation, and discloses a handheld fan which comprises a fan head and a handle, and the fan head is detachably connected with the handle. At least one button is arranged on the handle, and a control circuit, a battery and a temperature adjusting structure used for heating and / or cooling are arranged in the handle; the control circuit is electrically connected with the button, the fan head, the battery and the temperature adjusting structure and used for controlling the fan head and the temperature adjusting structure to work according to the triggering action of the button, so that the handheld fan has multiple functions, when only the temperature adjusting function is used, the fan head can be conveniently detached, and the temperature adjusting function is achieved. The size of the handheld fan is reduced, and the handheld fan is more portable.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of temperature regulation, and in particular to a handheld fan. Background Art

[0002] An electric fan is a device that generates airflow using electricity. Existing fans generally include floor fans, desktop fans, and handheld fans. With the development of technology, small fans have been reduced in size to the point where they can be held in the hand to cool down. Fans are products that people often use to regulate body temperature. Handheld fans can be held in the hand to cool down, and are small and portable. However, the inventor of this application has found that existing handheld fans have a single function and cannot meet user needs. Utility Model Content

[0003] In view of the above problems, an embodiment of the utility model provides a handheld fan to solve the problem that the existing handheld fans have a single function.

[0004] According to one aspect of the embodiment of the utility model, a handheld fan is provided, the handheld fan comprising a fan head and a handle, the fan head and the handle being detachably connected;

[0005] At least one button is provided on the handle, and a control circuit, a battery and a temperature adjustment structure for heating and / or cooling are provided in the handle;

[0006] The control circuit is electrically connected to the at least one button, the fan head, the battery and the temperature adjustment structure respectively, and is used to control the operation of the fan head and the temperature adjustment structure according to the triggering action of the button.

[0007] In an optional manner, the temperature control structure includes at least one semiconductor temperature control sheet; the cooling end or the heating end of the semiconductor temperature control sheet is in contact with at least part of the inner surface of the handle shell of the handle, the battery is arranged in the handle shell, and a first baffle for isolating the battery from the semiconductor temperature control sheet is arranged between the semiconductor temperature control sheet and the battery.

[0008] In an optional manner, foam is connected to the battery, and the temperature control structure also includes a cooling fan for dissipating heat for the semiconductor temperature control sheet; the handle shell also includes an air outlet and an air inlet; the cooling fan is arranged at one end of the semiconductor temperature control sheet, opposite to the air inlet; the air outlet is arranged on the bottom plate of the handle shell, and the air outlet is arranged opposite to the other end of the semiconductor temperature control sheet; the air flow enters through the air inlet, blows toward the semiconductor temperature control sheet through the cooling fan, and flows out through the air outlet.

[0009] In an optional manner, the control circuit is also used to control the switching between the cooling end and the heating end of the semiconductor thermostat. In this way, the semiconductor thermostat can achieve hot and cold switching to provide heating or cooling for the user.

[0010] In an optional manner, the temperature adjustment structure includes at least one electric heating film; the electric heating film is attached to at least a portion of the inner surface of the handle shell of the handle, the battery is arranged in the handle shell, and a heat insulating material is arranged between the electric heating film and the battery. By arranging the heat insulating material, the electric heating film is separated from the battery, and the heat insulating material also plays a role in fixing the battery.

[0011] In an optional manner, the handle shell is a plastic shell or a metal shell; the electric heating film is attached to the inner surface of the plastic shell or the metal shell.

[0012] In an optional manner, the handle shell includes a plastic shell and a metal shell arranged on the outer surface of the plastic shell; the electric heating film is arranged between the plastic shell and the metal shell; and the battery is arranged in a receiving cavity of the plastic shell.

[0013] In an optional manner, a thermal interface management material for enhancing the temperature conduction effect is further provided between the electric heating film and the metal shell.

[0014] In an optional manner, there are two electric heating diaphragms, which are respectively arranged on two opposite inner surfaces of the handle shell; or, the electric heating diaphragm is a ring structure, and the electric heating diaphragm is arranged along a circle on the inner surface of the handle shell.

[0015] In an optional manner, a connecting structure is provided at the bottom of the fan head, and a locking groove is provided on the connecting structure; the handle also includes a joint part and an unlocking key provided on the surface of the joint part, and the joint part is fixedly connected to one end of the handle housing; the joint part includes a groove, and a locking mechanism is provided in the groove; the connecting structure is embedded in the groove, the locking mechanism is connected to the unlocking key, and the locking mechanism is locked with the locking groove; when the unlocking key is triggered, the locking mechanism is unlocked from the locking groove, and the connecting structure can be detached from the groove.

[0016] In an optional manner, the handle also includes a charging and discharging module for charging external electronic devices.

[0017] The handheld fan of the embodiment of the utility model includes a fan head and a handle. The fan head is detachably connected to the handle, and at least one button is provided on the handle. The handle is provided with a control circuit, a battery and a temperature adjustment structure for heating and / or cooling; the control circuit is electrically connected to the at least one button, the fan head, the battery and the temperature adjustment structure respectively, and is used to control the fan head and the temperature adjustment structure to work according to the triggering action of the button. The handheld fan of the embodiment of the utility model can be used as a fan and a cooler, and can also be used as a hand warmer. Through such a setting, the handheld fan has multiple functions. In addition, the fan head and the handle of the handheld fan of the utility model are detachable, so that when the user only wants to use the temperature adjustment function without the fan function, the fan head can be removed, which is more portable.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0020] Figure 1 It shows a three-dimensional schematic diagram of the handheld fan provided by the embodiment of the utility model before and after being disassembled;

[0021] Figure 2 A schematic structural diagram of a joint portion of a handheld fan provided by an embodiment of the utility model is shown;

[0022] Figure 3 A schematic diagram of an exploded structure of a gripping portion of a handle of a handheld fan provided by an embodiment of the utility model is shown;

[0023] Figure 4 A schematic diagram of an exploded structure of a gripping portion of a handle of a handheld fan provided by another embodiment of the utility model is shown;

[0024] Figure 5 A schematic diagram of an exploded structure of a gripping portion of a handle of a handheld fan provided by another embodiment of the utility model is shown;

[0025] Figure 6 A schematic diagram of an exploded structure of a gripping portion of a handle of a handheld fan provided by another embodiment of the utility model is shown;

[0026] Figure 7 A schematic diagram of the exploded structure of a gripping portion of a handle of a handheld fan provided in yet another embodiment of the utility model is shown.

[0027] The reference numerals in the specific implementation manner are as follows:

[0028] Fan head 100, connecting structure 110, contact 111, locking groove 112, handle 200, joint part 210, grip part 220, air inlet 22011, groove 2101, first groove hole 2102, second groove hole 2103; unlocking key 2104, abutting plate 2105, elastic contact pin 2106, sliding block 2107, spring 2108, insert 2109, circuit board 2110, unlocking key hole 2104, contact plate 2105, elastic contact pin 2106, sliding block 2107, spring 2108, insert 2109, circuit board 2110, unlocking key hole 210 11. Handle shell 2201, semiconductor temperature regulating sheet 2202A, second baffle 2203A, first baffle 2203B, heat insulating material 2203, battery 2204, cooling fan 2205, fixing plate 2206, fan hole 2207, temperature regulating sheet slot 2208, fixing cotton 2209, bottom plate 2210, air outlet 2211, electric heating diaphragm 2202B, metal shell 2201A, plastic shell 2201B. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0030] See also Figure 1 , Figure 1 A stereoscopic diagram of an embodiment of a handheld fan of the utility model is shown, and the handheld fan includes a fan head 100 and a handle 200. The fan head 100 is detachably connected to the handle 200. The handle 200 is provided with at least one button, and the handle 200 is provided with a control circuit, a battery 2204, and a temperature adjustment structure for heating and / or cooling. The control circuit is electrically connected to the at least one button, the fan head 100, the battery 2204, and the temperature adjustment structure, respectively, and is used to control the fan head 100 and the temperature adjustment structure to work according to the triggering action of the at least one button. The number of the buttons can be one or more, and can be set accordingly according to the function of the button.

[0031] like Figure 1As shown, the fan head 100 and the handle 200 of the handheld fan embodiment of the utility model are detachably connected. Among them, the detachable connection method of the fan head 100 and the handle 200 in the embodiment of the utility model can be a snap-on connection method. In one embodiment of the utility model, a connection structure 110 is provided at the bottom of the fan head 100, and a contact 111 and a locking groove 112 are provided on the connection structure 110. The handle 200 includes a joint part 210 and a grip part 220, and the joint part 210 includes an unlocking key 2104 provided on the surface of the joint part 210. The gripping portion 220 includes a handle 200 housing, and the joint portion 210 is fixedly connected to one end of the handle 200 housing; the joint portion 210 includes a groove 2101, and a locking mechanism is arranged in the groove 2101; the connecting structure 110 is embedded in the groove 2101, and the locking mechanism is connected to the unlocking key 2104, and the locking mechanism is locked with the locking groove 112; when the unlocking key 2104 is triggered, the locking mechanism is unlocked from the locking groove 112, and the connecting structure 110 can be detached from the groove 2101. By setting a detachable connection between the two, when the user does not need the fan function, the fan head 100 can be removed from the handle 200, so that only the temperature adjustment function of the handle 200 can be used, and the size of the handheld fan can be reduced, making it more portable. By setting this connection mode on the fan head 100 and the handle 200, the fan head 100 can be separated and assembled from the handle 200 simply and quickly, and disassembly is convenient. The control circuit can be arranged in the joint part 210, and the battery 2204 and the temperature adjustment structure are arranged in the handle housing. The control circuit is electrically connected to the battery 2204, the temperature adjustment structure and the fan head 100 respectively.

[0032] like Figure 2As shown, in one embodiment of the handheld fan of the utility model, the joint part 210 further includes a groove 2101 on the housing of the joint part 210, and the groove 2101 is provided with a first groove hole 2102 and a second groove hole 2103 penetrating the upper and lower surfaces of the groove 2101. The locking mechanism includes two unlocking keys 2104, two abutment plates 2105, elastic contact pins 2106, a sliding block 2107, a spring 2108, an insert 2109 and a circuit board 2110, and the control circuit is arranged on the circuit board 2110. Among them, one end of the elastic contact pin 2106 is fixedly connected to the circuit board 2110, and the other end passes through the first groove hole 2102 to abut against the contact 111. The sliding block 2107 is arranged above the circuit board 2110 and connected to the housing of the joint part 210. An insert 2109 is fixedly arranged above the sliding block 2107. The insert 2109 is used to pass through the second groove hole 2103 and abut against the locking groove 112. The two ends of the sliding block 2107 are inclined structures. The opposite sides of the two abutment plates 2105 are respectively connected to the two ends of the spring 2108. The opposite sides of the two abutment plates 2105 are respectively provided with inclined structures that abut against the sliding block 2107. The inclined matching structure on the two abutment plates 2105, an unlocking key 2104 is provided on the other side of the two abutment plates 2105, the unlocking key 2104 passes through the unlocking key hole 2111 on the shell of the joint part 210, the two unlocking keys 2104, the two abutment plates 2105 and the spring 2108 are clamped and fixed by the unlocking key hole 2111, the circuit board 2110 abuts against the raised structure on the abutment plate 2105, when the unlocking key 2104 is pressed, the spring 2108 is compressed and deformed to become shorter, the inclined matching structure of the abutment plate 2105 generates an inward force, and the sliding block 2107 is driven to slide downward through the inclined surface matching, so that the insert 2109 moves downward and disengages from the locking groove 112. Among them, the part where the elastic contact pin 2106 abuts against the contact 111 is a circular structure. When the fan head 100 slides relative to the groove 2101 of the connecting part, it can be easily disengaged and contacted. When the elastic contact pin 2106 abuts against the contact 111, the fan head 100 is electrically connected to the handle 200, so that the button can control the operation of the fan head 100.

[0033] like Figure 3As shown, in one embodiment of the handheld fan of the utility model, the temperature regulating structure includes at least one semiconductor temperature regulating sheet 2202A. The cooling end or the heating end of the semiconductor temperature regulating sheet 2202A is in contact with at least part of the surface of the handle shell 2201 of the handle 200, the battery 2204 is arranged in the accommodating cavity of the handle shell 2201, the bottom of the battery 2204 is fixedly connected to the bottom of the handle shell 2201, and a first baffle 2203B for isolating the battery 2204 from the semiconductor temperature regulating sheet 2202A is arranged between the semiconductor temperature regulating sheet 2202A and the battery 2204. Specifically, in this embodiment, the handle shell 2201 can be a rectangular parallelepiped structure, and its material can be a metal material or a plastic material. The number of the semiconductor thermostat 2202A can be two, and the shape is rectangular, wherein one semiconductor thermostat 2202A is arranged on one side of the rectangular parallelepiped and is thermally connected to the side, and the other semiconductor thermostat 2202A is arranged on the other side opposite to the rectangular parallelepiped structure and is thermally connected to the other side. The side and the other side opposite are the sides with larger areas in the rectangular parallelepiped structure. The first baffle 2203B can include a material with heat-insulating properties, such as foam, etc., which can achieve thermal isolation between the battery 2204 and the semiconductor thermostat 2202A. Moreover, the first baffle 2203B can also fix the battery 2204.

[0034] In the embodiment of the utility model, the temperature regulating structure further includes a cooling fan 2205 for dissipating heat for the semiconductor temperature regulating sheet 2202A, and the handle housing 2201 further includes an air outlet 2211 and an air inlet 22011. The cooling fan 2205 and the semiconductor temperature regulating sheet 2202A can be fixed to the first baffle through a fixing plate 2206, wherein the fixing plate 2206 is provided with a fan hole 2207 matching the shape of the cooling fan 2205, and a temperature regulating sheet slot 2208 matching the semiconductor temperature regulating sheet 2202A, and the cooling fan 2205 and the temperature regulating sheet slot 2208 are opposite to the fixing plate 2206 through the fan hole 2207 and the temperature regulating sheet slot 2208 and contact the handle housing 2201. The cooling fan 2205 is arranged at one end of the semiconductor temperature regulating sheet 2202A, and is arranged opposite to the air inlet 22011; the bottom plate 2210 of the handle housing 2201 is provided with an air outlet 2211, and the air outlet 2211 is arranged opposite to the other end of the semiconductor temperature regulating sheet 2202A; the air flow enters through the air inlet 22011, blows toward the semiconductor temperature regulating sheet 2202A through the cooling fan 2205, and flows out through the air outlet 2211. Among them, the battery 2204 is provided with a fixing cotton 2209, which is fixed to the bottom plate 2210 or the side wall of the handle housing 2201 through the fixing cotton 2209, and the fixing cotton 2209 is foam. Figure 3As shown, in the embodiment of the utility model, the length of the first baffle 2203B can be greater than the sum of the lengths of the heat dissipation fan 2205 and the semiconductor temperature regulating sheet 2202A, and the heat dissipation fan 2205 and the semiconductor temperature regulating sheet 2202A are both arranged between the first baffle 2203B and the handle housing 2201, and an air duct is formed between the first baffle 2203B and the handle housing 2201, so as to facilitate the rapid dissipation of airflow. In another embodiment, the first baffle 2203B can also be arranged only between the semiconductor temperature regulating sheet 2202A and the battery 2204, and the second baffle 2203A is arranged between the heat dissipation fan 2205 and the battery 2204. The embodiment of the utility model is not specifically limited, and the second baffle 2203A can also be foam. The cooling end or the heating end of the semiconductor thermostat 2202A is thermally connected to the handle housing 2201, and the control circuit is also used to control the switching between the cooling end and the heating end of the semiconductor thermostat 2202A, so that the handle 200 of the handheld fan can be used as a hand warmer or as a cold source. In a specific implementation of the utility model, the control circuit can also control the temperature of the semiconductor thermostat 2202A.

[0035] like Figure 4 As shown, in another embodiment of the utility model, the inventor of the present application considers the practical comprehensive factors such as product shape, battery 2204 capacity and selection, temperature change mode, etc., and sets the temperature adjustment structure to include at least one electric heating film 2202B. By using the electric heating film 2202B to replace the semiconductor temperature adjustment film 2202A, the utility model embodiment can also make more space for the battery 2204, so as to select a battery 2204 with a larger capacity to improve the battery life. Among them, the electric heating film 2202B is attached to at least a part of the inner surface of the handle shell 2201 of the handle 200, and the battery 2204 is arranged in the handle shell 2201. Among them, the number of the electric heating film 2202B can be two, which are respectively arranged on the two opposite inner surfaces of the handle shell 2201; or, the electric heating film 2202B can be a ring structure, and the electric heating film 2202B is arranged along the inner surface of the handle shell 2201. The handle shell 2201 may be a plastic shell or a metal shell, and the at least one electric heating film 2202B is attached to the inner surface of the plastic shell or the metal shell; a heat insulating material 2203 is arranged between the electric heating film 2202B and the battery 2204, which is used to insulate the battery 2204 from the electric heating film 2202B, so as to prevent the heat generated by the electric heating film 2202B from damaging the battery 2204. The heat insulating material 2203 is a material with heat insulating properties, such as foam. When the handle shell 2201 is a metal shell, a thermal interface management material may be arranged between the electric heating film 2202B and the metal shell, and the thermal interface management material may be thermal conductive silicone grease or thermal conductive coating, etc., to enhance the temperature conduction effect. Figure 4As shown, in a specific implementation of the present invention, the handle housing 2201 may be a rectangular parallelepiped structure, the electric heating film 2202B may be a rectangular or square structure, and the number may be two, one of which is disposed on one side of the rectangular parallelepiped structure and is thermally connected to the side, and the other is disposed on the other side opposite to the rectangular parallelepiped structure and is thermally connected to the other side. By disposing the electric heating film 2202B on part of the inner surface of the handle housing 2201, while ensuring the temperature adjustment function of the handle, it is possible to save materials and reduce costs.

[0036] like Figure 5 As shown, in another embodiment of the utility model, the handle shell 2201 is a plastic shell or a metal shell, and the temperature adjustment structure is an electric heating film 2202B around the handle shell 2201, which is in the shape of a ring structure and is adapted to the metal shell or the plastic shell. The battery 2204 is arranged in the accommodating cavity of the plastic shell or the metal shell, and a heat insulating material 2203 is arranged between the battery 2204 and the electric heating film 2202B. The heat insulating material 2203 can be a ring structure, which wraps and fixes the battery 2204. The electric heating film 2202B of the ring structure is attached or fixed on the outer surface of the heat insulating material 2203, and contacts and thermally connects with the plastic shell or the metal shell. The heat insulating material 2203 is a material with heat insulating properties, such as foam or heat insulating coating, etc. By setting the electric heating film 2202B of the ring structure, the heating or cooling area is larger.

[0037] Among them, Figure 6As shown, in another embodiment of the utility model, the temperature adjustment structure includes at least one electric heating film 2202B, and the handle shell includes a plastic shell 2201B and a metal shell 2201A arranged outside the plastic shell 2201B. Among them, the metal shell 2201A can be a shell structure that completely wraps the plastic shell 2201B, or it can be a metal sheet arranged on two opposite outer surfaces of the plastic shell 2201B. Among them, the electric heating film 2202B is located between the plastic shell 2201B and the metal shell 2201A. Specifically, at least one slot can be set on the surface where the plastic shell 2201B contacts the metal shell 2201A, each slot is used to accommodate an electric heating film 2202B, and the electric heating film 2202B is attached to the slot. Among them, the number of electric heating films 2202B can be set accordingly according to the contact position between the human body and the handle 200 when holding the handle, and the embodiment of the utility model does not make specific restrictions. For example, in a specific implementation, the plastic shell 2201B can be a rectangular parallelepiped structure, and the two opposite outer surfaces are the two sides with larger areas in the rectangular parallelepiped structure. The two side areas are larger and the contact area with the human body is larger, so the electric heating film can be set on the two sides. Specifically, two slots can be set on the surface where the plastic shell 2201B contacts the metal shell 2201A, and the two slots are respectively set on the two opposite outer surfaces of the plastic shell 2201B, and the two slots are respectively set on the two opposite outer surfaces of the plastic shell 2201B, and the two electric heating films 2202B are respectively set in the two slots. When the metal shell 2201A is a metal sheet set on the two opposite outer surfaces of the plastic shell 2201B, the two metal sheets are respectively fitted with the corresponding electric heating films 2202B. Among them, a thermal interface management material can also be set between the metal shell 2201A and the electric heating film 2202B, and the thermal interface management material can be thermal conductive silicone grease, etc., to enhance the temperature conduction effect. The battery 2204 is disposed in the accommodating cavity of the plastic housing 2201B, and the plastic housing 2201B and the battery 2204 can be isolated by a heat insulating material (not shown in the figure), and the heat insulating material 2203 can be a structure with the same shape as the electric heating module, located at a position corresponding to the electric heating film 2202B, and is used to insulate the battery 2204 and fix the battery 2204. The heat insulating material can be foam or the like.

[0038] Among them, Figure 7As shown, in another embodiment of the utility model, the temperature adjustment structure is an electric heating film 2202B that surrounds the handle shell, and is in the shape of a ring structure, which is adapted to the handle shell. Among them, the handle shell includes a plastic shell 2201B and a metal shell 2201A wrapped outside the plastic shell 2201B; the electric heating film of the ring structure is arranged between the plastic shell 2201B and the metal shell 2201A. Specifically, a slot can be set between the plastic shell 2201B and the metal shell 2201A to accommodate the electric heating film 2202B of the ring structure, and the battery 2204 is arranged in the accommodating cavity of the plastic shell 2201B. The plastic shell 2201B and the battery 2204 can be isolated by a heat insulating material 2203, and the heat insulating material 2203 can be a ring structure, which wraps and fixes the battery 2204. The heat insulating material 2203 is a material with heat insulating properties, such as foam or heat insulating coating.

[0039] In an embodiment of the utility model, a charging and discharging module is also provided in the handle 200, and a charging and discharging interface is also provided on the handle housing 2201, which is used to charge external electronic devices during discharge and to charge the battery of the handheld fan itself during charging. By providing the charging and discharging module, the handle 200 of the handheld fan can also be used as a power bank.

[0040] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present invention should have the common meanings understood by technicians in the field to which the embodiments of the present invention belong.

[0041] In the description of the embodiments of the present invention, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the embodiments of the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0042] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0043] In the description of the present embodiment, unless otherwise clearly specified and limited, the technical terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0044] In the description of the present embodiment, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and description of the utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A handheld fan, characterized in that: The handheld fan comprises a fan head and a handle, and the fan head is detachably connected to the handle; At least one button is provided on the handle, and a control circuit, a battery and a temperature adjustment structure for heating and / or cooling are provided in the handle; The control circuit is electrically connected to the at least one button, the fan head, the battery and the temperature adjustment structure respectively, and is used to control the operation of the fan head and the temperature adjustment structure according to the triggering action of the at least one button.

2. The handheld fan according to claim 1, characterized in that: The temperature regulating structure comprises at least one semiconductor temperature regulating sheet; The cooling end or the heating end of the semiconductor thermostat is in contact with at least a portion of the inner surface of the handle shell of the handle, the battery is arranged in the handle shell, and a first baffle for isolating the battery from the semiconductor thermostat is arranged between the semiconductor thermostat and the battery.

3. The handheld fan according to claim 2, characterized in that: The battery is connected with foam, and the temperature regulating structure also includes a cooling fan for dissipating heat for the semiconductor temperature regulating sheet; the handle housing also includes an air outlet and an air inlet; The cooling fan is arranged at one end of the semiconductor temperature regulating sheet, and is arranged opposite to the air inlet; the air outlet is arranged on the bottom plate of the handle shell, and is arranged opposite to the other end of the semiconductor temperature regulating sheet; the air flow enters through the air inlet, is blown toward the semiconductor temperature regulating sheet by the cooling fan, and flows out through the air outlet.

4. The handheld fan according to claim 1, characterized in that: The temperature adjustment structure includes at least one electric heating film; the electric heating film is attached to at least a portion of the inner surface of the handle shell of the handle, the battery is arranged in the handle shell, and an insulating material is arranged between the electric heating film and the battery.

5. The handheld fan according to claim 4, characterized in that: The handle shell is a plastic shell or a metal shell; the electric heating film is attached to the inner surface of the plastic shell or the metal shell.

6. The handheld fan according to claim 4, characterized in that: The handle shell comprises a plastic shell and a metal shell arranged on the outer surface of the plastic shell; the electric heating film is arranged between the plastic shell and the metal shell; and the battery is arranged in the accommodating cavity of the plastic shell.

7. The handheld fan according to claim 6, characterized in that: A thermal interface management material for enhancing the temperature conduction effect is also arranged between the electric heating film and the metal shell.

8. The handheld fan according to claim 4, characterized in that: There are two electric heating films, which are respectively arranged on two opposite inner surfaces of the handle housing; or, The electric heating film is a ring structure, and the electric heating film is arranged along the inner surface of the handle shell.

9. The handheld fan according to any one of claims 1 to 8, characterized in that: The bottom of the fan head is provided with a connection structure, and the connection structure is provided with a locking groove; the handle also includes a joint part and an unlocking key arranged on the surface of the joint part, and the joint part is fixedly connected to one end of the handle housing; The joint portion includes a groove, in which a locking mechanism is arranged; the connecting structure is embedded in the groove, the locking mechanism is connected to the unlocking key, and the locking mechanism is locked with the locking groove; when the unlocking key is triggered, the locking mechanism is unlocked from the locking groove, and the connecting structure can be detached from the groove.

10. The handheld fan according to any one of claims 1 to 8, characterized in that: The handle also includes a charging and discharging module for charging external electronic devices.

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