Folding electric heater

Abstract

The present invention discloses a foldable electric heater, an electric heater body and an air supply device, wherein the electric heater body comprises a first electric heater body and a second electric heater body which are movably connected, and the first electric heater body and the second electric heater body are both provided with air inlets at the bottom and air outlets at the top; the air supply device comprises a first air supply component and a second air supply component, wherein the first air supply component is located at the bottom of the first electric heater body and is used to introduce air into the air inlet of the first electric heater body, and the second air supply component is located at the bottom of the second electric heater body and is used to introduce air into the air inlet of the second electric heater body. In this way, the thermal efficiencies of the first electric heater body and the second electric heater body can be similar, so that the foldable electric heater body can generate heat evenly as a whole, and the overall heating efficiency of the foldable electric heater can be improved at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a foldable electric heater. Background Art

[0002] Currently, most skirting board electric heaters are long and straight. Since they cannot be flexibly used in special scenarios such as corners and small areas, their usage ratio is gradually decreasing and they are being replaced by skirting board electric heaters with folding functions.

[0003] Baseboard electric heaters often use convection heating, which means that a heating element is set inside the body, an air inlet is set at the bottom of the body, and an air outlet is set at the top of the body. When the heating element is heated, the cold air around it is heated and becomes hot air, which rises and is discharged from the air outlet, and the cold air is replenished from the air inlet at the bottom. This cycle forms a natural convection of heat exchange. However, since the folding electric heater is long when unfolded, when relying on natural convection, the air flow at the air inlet is complex, and the amount of air entering each position of the heating element is uneven, resulting in uneven heating of the heating element as a whole, large local temperature differences, and reduced heating efficiency of the heater. Summary of the invention

[0004] Based on this, it is necessary to provide a foldable electric heater to address the above problems. The foldable electric heater has strong adaptability, uniform heating effect and high heating efficiency.

[0005] A foldable electric heater comprises: an electric heater body and an air supply device, wherein the electric heater body comprises a first electric heater and a second electric heater which are movably connected, and the first electric heater and the second electric heater are both provided with air inlets at the bottom and air exhaust outlets at the top; the air supply device comprises a first air supply component and a second air supply component, the first air supply component is located at the bottom of the first electric heater and is used to supply air to the air inlet of the first electric heater, and the second air supply component is located at the bottom of the second electric heater and is used to supply air to the air inlet of the second electric heater.

[0006] In the above-mentioned foldable electric heater, since the first electric heater is provided with a first air supply component at the bottom, and the second electric heater is provided with a second air supply component at the bottom, when the foldable electric heater is working, the first air supply component can pass air into the first electric heater to speed up the air circulation rate in the first electric heater, and the second air supply component can pass air into the second electric heater to speed up the air circulation rate in the second electric heater, so that the thermal efficiency of the first electric heater and the second electric heater can be similar, so that the foldable electric heater can heat evenly as a whole, and at the same time, the overall heating efficiency of the foldable electric heater can be improved.

[0007] The technical solution is further described below:

[0008] In one embodiment, the first air supply assembly and the second air supply assembly both include an air supply pipe and an air supply part, the air outlet ends of the two air supply parts are respectively connected to the respective air supply pipes, and the two air supply pipes are provided with air outlets, the air outlet on the air supply pipe of the first air supply assembly can be connected to the air inlet of the first electric heater, and the air outlet on the air supply pipe of the second air supply assembly can be connected to the air inlet of the second electric heater.

[0009] In one embodiment, the electric heater body also includes a first rotating mechanism, and the first electric heater and the second electric heater are respectively rotatably arranged on the first rotating mechanism, so that the electric heater body has a folded state and an unfolded state; the air supply device also includes a second rotating mechanism, and the two air supply parts are both arranged in the second rotating mechanism, and the two air supply pipes are respectively movably connected to the second rotating mechanism, and the second rotating mechanism is placed at the bottom of the first rotating mechanism and can be connected to the first rotating mechanism, the air supply pipe of the first air supply component is connected to the first electric heater, and the air supply pipe of the second air supply component is connected to the second electric heater, so that the air supply device also has the folded state and the unfolded state along with the electric heater body.

[0010] In one of the embodiments, both of the two air supply pipes are provided with hooks, and the first electric heater and the second electric heater are correspondingly provided with buckles that are compatible with the hooks, and the hooks are snap-fitted with the buckles.

[0011] In one embodiment, the second rotating mechanism includes an upper shell, a lower shell, a first rotating ring and a second rotating ring, the first rotating ring and the second rotating ring are respectively rotatably clamped between the upper shell and the lower shell, the upper shell and the lower shell are connected by a connecting piece, a partial area of ​​the upper shell and the first rotating ring and a partial area of ​​the lower shell form a first accommodating chamber, a partial area of ​​the upper shell and the second rotating ring and a partial area of ​​the lower shell form a second accommodating chamber, the first rotating ring is provided with a first exhaust port connected to the first accommodating chamber, the second rotating ring is provided with a second exhaust port connected to the second accommodating chamber, the air supply pipe of the first air supply assembly is inserted at the first exhaust port and is connected to the first accommodating chamber, the air supply pipe of the second air supply assembly is inserted at the second exhaust port and is connected to the second accommodating chamber, and the upper shell is connected to the first rotating mechanism.

[0012] In one embodiment, two air inlets are provided on the lower shell, one of which is connected to the first accommodating cavity, and the other is connected to the second accommodating cavity, the air supply portion of the first air supply assembly is located in the first accommodating cavity and is used to suck air from the air inlet into the first accommodating cavity, and the air supply portion of the second air supply assembly is located in the second accommodating cavity and is used to suck air from the air inlet into the second accommodating cavity.

[0013] In one of the embodiments, the air supply unit includes a motor and a wind wheel, the wind wheel is connected to the output end of the motor, and the wind wheel is used to draw air from the air inlet.

[0014] In one embodiment, two circular guide rails are provided on the surface of the upper shell facing the lower shell and on the surface of the lower shell facing the upper shell, the two circular guide rails on the upper shell correspond to the first rotating ring and the second rotating ring respectively, and the two circular guide rails on the lower shell also correspond to the first rotating ring and the second rotating ring respectively, the first rotating ring and the second rotating ring are both circular ring structures, and both ends of the first rotating ring and both ends of the second rotating ring are provided with slots, and the slots are concave-convexly matched with the circular guide rails.

[0015] In one embodiment, the second rotating mechanism further includes a positioning member, a matching portion is provided on the upper shell, and the positioning member is disposed on the lower shell and can be positioned and matched with the matching portion.

[0016] In one of the embodiments, the foldable electric heater further includes a support foot, and at least one of the support feet is provided at the bottom of the first electric heater and the bottom of the second electric heater respectively, and the height of the support foot in the vertical direction is greater than the height of the air supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0020] Figure 1 It is a structural schematic diagram of a foldable electric heater in a folded state according to an embodiment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a foldable electric heater in an embodiment of the present invention when it is in an unfolded state;

[0022] Figure 3 It is a schematic diagram of a partial structure explosion of a foldable electric heater in one embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the explosion structure of the second rotating mechanism in one embodiment of the present invention;

[0024] Figure 5 It is a structural schematic diagram of a foldable electric heater in another viewing angle in one embodiment of the present invention;

[0025] Figure 6 A cross-sectional view of an air supply device in one embodiment of the present invention;

[0026] Figure 7 FIG. 1 is a gas flow path diagram of a foldable electric heater in operation according to an embodiment of the present invention.

[0027] The components in the figure are marked as follows:

[0028] 10. Folding electric heater; 110. Electric heater body; 111. First electric heater; 112. Second electric heater; 1121. Air inlet; 1122. Air outlet; 113. Heating component; 114. First rotating mechanism; 120. Air supply device; 121. First air supply component; 122. Second air supply component; 1221. Air supply pipe; 12211. Air outlet; 1222. Air supply unit; 12221. Motor; 12222. Wind wheel; 123. Second rotating mechanism; 1 231, upper shell; 1232, lower shell; 12321, air inlet; 12322, auxiliary air inlet; 1233, first rotating ring; 12331, first exhaust port; 1234, second rotating ring; 12341, second exhaust port; 12342, slot; 1235, first accommodating cavity; 1236, second accommodating cavity; 1237, circular guide rail; 1238, positioning member; 1249, matching portion; 124, hook; 130, support foot; 140, support block. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] See also Figures 1 to 3 One embodiment of the present application provides a foldable electric heater 10, comprising: an electric heater body 110 and an air supply device 120. The electric heater body 110 comprises a first electric heater 111 and a second electric heater 112 that are movably connected. The first electric heater 111 and the second electric heater 112 are both provided with an air inlet 1121 at the bottom and an air outlet 1122 at the top. The air supply device 120 comprises a first air supply component 121 and a second air supply component 122. The first air supply component 121 is located at the bottom of the first electric heater 111 and is used to supply air to the air inlet 1121 of the first electric heater 111. The second air supply component 122 is located at the bottom of the second electric heater 112 and is used to supply air to the air inlet 1121 of the second electric heater 112.

[0031] In the above-mentioned foldable electric heater 10, since the first electric heater 111 is provided with a first air supply component 121 at the bottom, and the second electric heater 112 is provided with a second air supply component 122 at the bottom. Thus, when the foldable electric heater 10 is working, the first air supply component 121 can pass air into the first electric heater 111 to speed up the air circulation rate in the first electric heater 111, and the second air supply component 122 can pass air into the second electric heater 112 to speed up the air circulation rate in the second electric heater 112, so that the thermal efficiencies of the first electric heater 111 and the second electric heater 112 can be similar, so that the foldable electric heater 10 can heat evenly as a whole, and the overall heating efficiency of the foldable electric heater 10 can be improved.

[0032] Specifically, Figure 3 As shown, a heating component 113 is provided in each of the first electric heater 111 and the second electric heater 112, and the heating component 113 is located at the air inlet 1121. The heating component 113 is used to heat the air entering from the air inlet 1121, and the hot air heated by the heating component 113 can be discharged from the air outlet 1122 for use by the user.

[0033] See also Figure 2 , Figure 3 and Figure 6On the basis of the above embodiments, in one embodiment, the first air supply assembly 121 and the second air supply assembly 122 both include an air supply pipe 1221 and an air supply unit 1222. The air outlet ends of the two air supply units 1222 are respectively connected to their respective air supply pipes 1221. An air outlet 12211 is provided on the air supply pipe 1221. The air outlet 12211 on the air supply pipe 1221 of the first air supply assembly can be connected to the air inlet 1121 of the first electric heater. The air outlet 12211 on the air supply pipe 1221 of the second air supply assembly can be connected to the air inlet 1121 of the second electric heater 112. In this way, the air supply unit 1222 can transfer air to the air inlet 1121 of the first electric heater 111 and the air inlet 1121 of the second electric heater 112 through the air supply pipe 1221, so that the air flow entering the air inlet 1121 is larger and more uniform. Furthermore, the air can quickly flow to the heat generating component 113 and then be discharged from the exhaust port 1122, thereby increasing the air circulation rate and reducing the loss of heat during the heat transfer process.

[0034] Specifically, in this embodiment, Figure 3 As shown, an air outlet 12211 is provided on the end surface of the air supply pipe 1221 facing the electric heater body 110. In this way, the air outlet 12211 on the air supply pipe 1221 can be opposite to the air inlet 1121 of the electric heater body, which is convenient for direct transmission of air.

[0035] In this embodiment, a plurality of air outlets 12211 are disposed on the air supply pipe 1221 , and the plurality of air outlets 12211 are sequentially spaced apart along the length direction of the air supply pipe 1221 .

[0036] Optionally, in another embodiment, a baffle is provided at the air outlet 12211. When the baffle is covered on the air outlet 12211, the air outlet 12211 stops discharging air. In this way, the user can set the opening and closing conditions of the air outlet 12211 (including the number and position of the air outlet 12211) to adjust the flow rate of air entering the electric heater.

[0037] Optionally, in another embodiment, the first air supply assembly 121 can be separately installed at the bottom of the first electric heater 111 and connected to the first electric heater 111, and the second air supply assembly 122 can be separately installed at the bottom of the second electric heater 112 and connected to the second electric heater 112.

[0038] Specifically, in this embodiment, please refer to Figure 2 and Figure 3 The electric heater body 110 further includes a first rotating mechanism 114. The first electric heater 111 and the second electric heater 112 are rotatably disposed on the first rotating mechanism 114, respectively, so that the electric heater body 110 has a folded state and an unfolded state.

[0039] It should be noted that when the electric heater body 110 is in the folded state, Figure 1 and Figure 3 As shown, the first electric heater 111 and the second electric heater 112 are arranged opposite to each other and close to each other. When the electric heater body is in the unfolded state, the first electric heater 111 and the second electric heater 112 can be arranged at an angle.

[0040] Optionally, the angle between the first electric heater 111 and the second electric heater 112 is less than or equal to 180°. Figure 2 As shown, the angle between the first electric heater 111 and the second electric heater 112 is 180°. At this time, the first electric heater 111, the first rotating mechanism 114 and the second electric heater 112 are located in the same plane.

[0041] For further information, see Figure 2 and Figure 3 , the air supply device 120 also includes a second rotating mechanism 123. The two air supply parts 1222 are both arranged in the second rotating mechanism 123. The two air supply pipes 1221 are respectively movably connected to the second rotating mechanism 123. The second rotating mechanism 123 is placed at the bottom of the first rotating mechanism 114 and can be connected to the first rotating mechanism 114. The air supply pipe 1221 of the first air supply component 121 is connected to the first electric heater 111, and the air supply pipe 1221 of the second air supply component 122 is connected to the second electric heater 112. In this way, the air supply device 120 can have a folded state and an unfolded state along with the electric heater body 110.

[0042] In the foldable electric heater 10, the electric heater body 110 and the air supply device 120 both have a folded state and an unfolded state, so the user can adjust the unfolded state of the foldable electric heater 10 according to the environment. At the same time, when the electric heater is not needed, it can be placed in a folded state for easy storage. Further, since the air inlet 1121 is relatively long when the foldable electric heater 10 is in the unfolded state, after the air supply device 120 is arranged at the bottom of the electric heater body 110, the air supply device 120 can pass air into the air inlet 1121 of the first electric heater 111 and the air inlet 1121 of the second electric heater 112, so that the air flow at the air inlet 1121 of the first electric heater 111 and the air inlet 1121 of the second electric heater 112 is relatively uniform. Correspondingly, the air flow entering each area of ​​the heating component 113 in each electric heater is relatively uniform, so that the thermal efficiency of each part of the two heating components 113 is similar, so that the first electric heater 111 heats evenly, and the second electric heater 112 also heats evenly, thereby improving the heating uniformity of the foldable electric heater 10 as a whole.

[0043] Optionally, the second rotating mechanism 123 is detachably connected to the first rotating mechanism 114. For example, the second rotating mechanism 123 is installed on the first rotating mechanism 114 by means of a snap or threaded connection. In this way, the electric heater body 110 and the air supply device 120 can be detachably connected, and when any one of the components is damaged, the damaged component can be replaced separately. At the same time, when moving or storing the foldable electric heater 10, the electric heater body 110 and the air supply device 120 can be disassembled and moved or stored.

[0044] In order to ensure that the air supply device 120 can rotate synchronously with the electric heater body 110 when the electric heater body 110 rotates, based on the above embodiment, in one embodiment, as shown in FIG. Figure 2 and Figure 3 As shown, the two air supply pipes 1221 are both provided with hooks 124. The first electric heater 111 and the second electric heater 112 are both provided with buckles that match the hooks 124. The hooks 124 and the buckles are engaged with each other. In this way, the air supply pipe 1221 can be quickly connected to the electric heater body 110, which is convenient for operation.

[0045] Since the air supply device 120 and the electric heater body 110 have different operating systems, the two can be used separately or simultaneously. When it is necessary to improve the heating efficiency of the electric heater body 110, the air supply device 120 and the electric heater body 110 can be turned on at the same time. When the indoor temperature is high, the air supply device 120 can be removed or started separately to accelerate the circulation of air in the room. In addition, since the air supply device 120 is located outside the electric heater body 110, when the parts inside the electric heater body 110 become loose and fall off, the falling parts will not affect the normal use of the air supply device 120, so as to protect the air supply device 120.

[0046] Based on the above embodiments, in one embodiment, Figure 3 and Figure 4 As shown, the second rotating mechanism 123 includes an upper shell 1231, a lower shell 1232, a first rotating ring 1233 and a second rotating ring 1234. The first rotating ring 1233 and the second rotating ring 1234 are rotatably clamped between the upper shell 1231 and the lower shell 1232. The upper shell 1231 and the lower shell 1232 are connected by a connecting member. In this way, the first rotating ring 1233 and the second rotating ring 1234 can be stably rotated between the upper shell 1231 and the lower shell 1232.

[0047] Specifically, the connecting member is a bolt or a screw. The upper shell 1231 and the lower shell 1232 are fixedly connected by bolts or screws.

[0048] For further information, see Figure 2 , Figure 3 and Figure 6 , a partial area of ​​the upper shell 1231, the first rotating ring 1233 and a partial area of ​​the lower shell 1232 form a first accommodating chamber 1235. A partial area of ​​the upper shell 1231, the second rotating ring 1234 and a partial area of ​​the lower shell 1232 form a second accommodating chamber 1236. A first exhaust port 12331 communicating with the first accommodating chamber 1235 is provided on the first rotating ring 1233. A second exhaust port 12341 communicating with the second accommodating chamber 1236 is provided on the second rotating ring 1234. The air supply pipe 1221 of the first air supply assembly is inserted at the first exhaust port 12331 and communicates with the first accommodating chamber 1235. The air supply pipe 1221 of the second air supply assembly is inserted at the second exhaust port 12341 and communicates with the second accommodating chamber 1236. The upper shell 1231 is connected to the first rotating mechanism 114. In this way, the two air supply pipes 1221 can be rotatably connected to the second rotating mechanism 123 respectively, and the rotation of one of the air supply pipes 1221 will not affect the other air supply pipe 1221.

[0049] Specifically, in this embodiment, the air supply pipe 1221 and the first rotating ring 1233 of the first air supply assembly 121 rotate relative to the upper shell 1231 and the lower shell 1232 with the axis of the first rotating ring 1233 as the rotation center. And / or, the air supply pipe 1221 and the second rotating ring 1234 of the second air supply assembly 122 rotate relative to the upper shell 1231 and the lower shell 1232 with the axis of the second rotating ring 1234 as the rotation center. In this way, the air supply device 120 can be switched between the folded state and the unfolded state along with the electric heater body 110.

[0050] Based on the above embodiment, in one embodiment, please refer to Figures 3 to 6 , two air inlets 12321 are provided on the lower shell 1232. One of the air inlets 12321 is communicated with the first accommodating chamber 1235, and the other air inlet 12321 is communicated with the second accommodating chamber 1236. Specifically, the air supply portion 1222 of the first air supply assembly is located in the first accommodating chamber 1235 and is used to suck air from the air inlet 12321 into the first accommodating chamber 1235. The air supply portion 1222 of the second air supply assembly is located in the second accommodating chamber 1236 and is used to suck air from the air inlet 12321 into the second accommodating chamber 1236. In this way, the air supply portion 1222 can draw external air from the air inlet 12321 into the accommodating chamber to be discharged into the air supply pipe 1221.

[0051] To clearly understand the assembly relationship between the two air inlets 12321 and the first accommodating cavity 1235 and the second accommodating cavity 1236, the two air inlets 12321 can be referred to as the first air inlet and the second air inlet, respectively. The first air inlet is communicated with the first accommodating cavity 1235, and the second air inlet is communicated with the second accommodating cavity 1236.

[0052] See also Figure 2 , Figure 3 , Figures 5 to 7 Specifically, in this embodiment, the air supply part 1222 located in the first accommodating cavity 1235 works, so that the external air can enter the first accommodating cavity 1235 from the first air inlet and then flow from the first exhaust port 12331 to the air supply pipe 1221 of the first air supply component 121, and the air in the air supply pipe 1221 can be discharged from the air outlet 12211 arranged thereon and flow to the air inlet 1121 of the first electric heater, and the air enters the first electric heater 111 and is heated by the heating component 113, and the hot air formed by the heating is then discharged from the exhaust port 1122 on the top of the first electric heater for use by the user. And / or, the air supply part 1222 located in the second accommodating cavity 1236 works, so that the external air can enter the second accommodating cavity 1236 from the second air inlet and then flow from the second exhaust port 12341 to the air supply pipe 1221 of the second air supply component. The air in the air supply pipe 1221 can be discharged from the air outlet 12211 arranged thereon and flow to the air inlet 1121 of the second electric heater. After the air enters the second electric heater 112, it is heated by the heating component 113, and the hot air formed by the heating is then discharged from the exhaust port 1122 at the top of the second electric heater for use by the user.

[0053] Further, in one embodiment, if Figure 5 As shown, a plurality of auxiliary air inlet holes 12322 are provided at intervals along the circumferential direction of the air inlet 12321 to increase the air flow rate entering the accommodating cavity.

[0054] See also Figure 3 and Figure 5 On the basis of the above embodiment, in one embodiment, the air supply unit 1222 includes a motor 12221 and a wind wheel 12222. The wind wheel 12222 is connected to the output end of the motor 12221. In this way, when the motor 12221 is working, it can drive the wind wheel 12222 to rotate, and the wind wheel 12222 is used to inhale air from the air inlet 12321.

[0055] Specifically, in this embodiment, the motor 12221 is connected to the upper shell 1231 , and the wind wheel 12222 is placed at the air inlet 12321 .

[0056] See also Figure 4On the basis of the above embodiments, in one embodiment, two annular guide rails 1237 are provided on the surface of the upper shell 1231 facing the lower shell 1232 and on the surface of the lower shell 1232 facing the upper shell 1231. The two annular guide rails 1237 on the upper shell 1231 correspond to the first rotating ring 1233 and the second rotating ring 1234 respectively. The two annular guide rails 1237 on the lower shell 1232 also correspond to the first rotating ring 1233 and the second rotating ring 1234 respectively. The first rotating ring 1233 and the second rotating ring 1234 are both annular structures. And both ends of the first rotating ring 1233 and the two ends of the second rotating ring 1234 are provided with a clamping groove 12342. The clamping groove 12342 is matched with the annular guide rail 1237 in a concave-convex manner. In this way, the first rotating ring 1233 and the second rotating ring 1234 can both rotate between the upper shell 1231 and the lower shell 1232 along the set circular guide rail 1237, which can effectively prevent the first rotating ring 1233 and the second rotating ring 1234 from falling off between the upper shell 1231 and the lower shell 1232 during rotation.

[0057] To facilitate the assembly of the upper housing 1231 and the lower housing 1232, the second rotating mechanism 123 further includes a positioning member 1238. Figure 4 and Figure 6 As shown, the upper shell 1231 is provided with a matching portion 1249, and the positioning member 1238 is provided on the lower shell 1232 and can be positioned and matched with the matching portion 1249. In this way, when the upper shell 1231 and the lower shell 1232 are connected, the positioning member 1238 and the matching portion 1249 can be used to achieve the positioning between the upper shell 1231 and the lower shell 1232.

[0058] Specifically, the positioning member 1238 is a convex block, and a positioning groove is provided in the convex block, and the matching portion 1249 is a positioning rod. When the upper shell 1231 and the lower shell 1232 are assembled, the positioning rod can be inserted into the positioning groove.

[0059] Based on the above embodiments, in one embodiment, Figures 1 to 3 as well as Figure 5 As shown, the foldable electric heater 10 further includes a support leg 130. At least one support leg 130 is provided at the bottom of the first electric heater 111 and the bottom of the second electric heater 112. And the height of the support leg 130 in the vertical direction is greater than the height of the air supply device 120. In this way, when the foldable electric heater 10 is placed on the ground for operation, a certain distance can be left between the air inlet 12321 and the ground so that air can enter the air inlet 12321.

[0060] To clearly understand the height in this embodiment, Figure 1 As shown, the height of the support leg 130 is H1, and the height of the air supply device 120 is H2, wherein H1>H2.

[0061] Specifically, in this embodiment, a leg 130 is provided at one end of the first electric heater 111 away from the second electric heater 112, and a leg 130 is provided at one end of the second electric heater 112 away from the first electric heater 111. In this way, interference with the installation of the air supply device 120 can be avoided.

[0062] To ensure that the foldable electric heater 10 remains stable when placed on the ground, Figure 1 and Figure 5 As shown, a support block 140 is provided on the lower shell 1232. The support block 140 is located in the area of ​​the lower shell 1232 except the air inlet 12321 and the auxiliary air inlet hole 12322. The sum of the heights of the air supply device 120 and the support block 140 in the vertical direction is equal to the height of the support leg 130. Among them, the height of the support block 140 is H3.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0064] In the present invention, unless otherwise clearly specified and limited, the 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the present invention, 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.

[0066] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A foldable electric heater, characterized in that: include: An electric heater body, wherein the electric heater body comprises a first electric heater and a second electric heater which are movably connected, and the first electric heater and the second electric heater are both provided with air inlets at the bottom and air outlets at the top; and An air supply device, the air supply device comprising a first air supply component and a second air supply component, the first air supply component is located at the bottom of the first electric heater and is used to pass air into the air inlet of the first electric heater, the second air supply component is located at the bottom of the second electric heater and is used to pass air into the air inlet of the second electric heater; The first air supply assembly and the second air supply assembly each include an air supply pipe and an air supply portion, the air outlet ends of the two air supply portions are respectively connected to the respective air supply pipes, and the two air supply pipes are provided with air outlets, the air outlet on the air supply pipe of the first air supply assembly can be connected to the air inlet of the first electric heater, and the air outlet on the air supply pipe of the second air supply assembly can be connected to the air inlet of the second electric heater; The electric heater body also includes a first rotating mechanism, and the first electric heater and the second electric heater are respectively rotatably arranged on the first rotating mechanism, so that the electric heater body has a folded state and an unfolded state; the air supply device also includes a second rotating mechanism, and the two air supply parts are both arranged in the second rotating mechanism, and the two air supply pipes are respectively movably connected to the second rotating mechanism, and the second rotating mechanism is placed at the bottom of the first rotating mechanism and can be connected to the first rotating mechanism, the air supply pipe of the first air supply component is connected to the first electric heater, and the air supply pipe of the second air supply component is connected to the second electric heater, so that the air supply device also has the folded state and the unfolded state along with the electric heater body; The second rotating mechanism comprises an upper shell, a lower shell, a first rotating ring and a second rotating ring, the first rotating ring and the second rotating ring are respectively rotatably clamped between the upper shell and the lower shell, the upper shell and the lower shell are connected by a connecting piece, a partial area of ​​the upper shell, the first rotating ring and a partial area of ​​the lower shell form a first accommodating chamber, a partial area of ​​the upper shell, the second rotating ring and a partial area of ​​the lower shell form a second accommodating chamber, a first exhaust port communicating with the first accommodating chamber is provided on the first rotating ring, a second exhaust port communicating with the second accommodating chamber is provided on the second rotating ring, an air supply pipe of the first air supply assembly is inserted at the first exhaust port and communicated with the first accommodating chamber, an air supply pipe of the second air supply assembly is inserted at the second exhaust port and communicated with the second accommodating chamber, and the upper shell is connected to the first rotating mechanism; The lower shell is provided with two air inlets, one of which is communicated with the first accommodating chamber, and the other is communicated with the second accommodating chamber, the air supply portion of the first air supply assembly is located in the first accommodating chamber and is used to suck air from the air inlet into the first accommodating chamber, and the air supply portion of the second air supply assembly is located in the second accommodating chamber and is used to suck air from the air inlet into the second accommodating chamber; A plurality of auxiliary air inlet holes are arranged at intervals along the circumferential direction of the air inlet.

2. The foldable electric heater according to claim 1, characterized in that: The two air supply pipes are both provided with hooks, and the first electric heater and the second electric heater are both correspondingly provided with buckles matched with the hooks, and the hooks are engaged with the buckles.

3. The foldable electric heater according to claim 1, characterized in that: The air supply unit includes a motor and a wind wheel. The wind wheel is connected to the output end of the motor and is used to draw air from the air inlet.

4. The foldable electric heater according to claim 1, characterized in that: Two circular guide rails are provided on the surface of the upper shell facing the lower shell and on the surface of the lower shell facing the upper shell. The two circular guide rails on the upper shell correspond to the first rotating ring and the second rotating ring respectively, and the two circular guide rails on the lower shell also correspond to the first rotating ring and the second rotating ring respectively. The first rotating ring and the second rotating ring are both circular ring structures, and both ends of the first rotating ring and both ends of the second rotating ring are provided with slots, and the slots are concave-convex matched with the circular guide rails.

5. The foldable electric heater according to claim 1, characterized in that: The second rotating mechanism further includes a positioning member, a matching portion is provided on the upper shell, and the positioning member is arranged on the lower shell and can be positioned and matched with the matching portion.

6. The foldable electric heater according to any one of claims 1 to 5, characterized in that: The foldable electric heater also includes a support foot. The bottom of the first electric heater and the bottom of the second electric heater are respectively provided with at least one of the support feet, and the height of the support foot in the vertical direction is greater than the height of the air supply device.

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