A telescopic portable electric heater

Abstract

The application discloses a portable telescopic electric heater, which comprises a plurality of heating sheets, a telescopic device, a power connection device, a support, a controller, the support comprises a left end support plate and a right end support plate, the plurality of heating sheets are arranged in parallel with equal intervals or in a V-shaped head-to-tail mode between the left end support plate and the right end support plate, the left end support plate, the plurality of heating sheets and the right end support plate are connected through the telescopic device, the adjacent heating sheets are electrically connected through the power connection device, the controller is fixedly connected to the support, and the controller is electrically connected with the power connection device. The application can realize the telescopic function of the electric heater, increase the heating area, reduce the use area, and is convenient to carry, simple in structure and high in practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heating, in particular to a telescopic portable electric heater. BACKGROUND

[0002] At present, the domestic electric heating methods mainly include heating cable floor radiant heating, electric heating film heating and electric heater, but the existing electric heater has small heating area and poor heating effect, while the large electric heater has large heating area, but has large volume and quality, and is inconvenient to carry and store, and has poor practicability. SUMMARY

[0003] The present application relates to the field of heating, in particular to a telescopic portable electric heater.

[0004] The technical scheme of the present application for realizing the above-mentioned purpose is a telescopic portable electric heater, comprising a plurality of heating sheets, a telescopic device, a power connection device, a support, a controller, wherein the support comprises a left end support plate and a right end support plate, the plurality of heating sheets are arranged in parallel at equal intervals or in a V-shaped head-to-tail manner between the left end support plate and the right end support plate, the left end support plate, the plurality of heating sheets and the right end support plate are connected through the telescopic device, the adjacent heating sheets are electrically connected through the power connection device, the controller is fixedly connected to the support, and the controller is electrically connected to the power connection device.

[0005] The heating sheet is a hollow structure, comprising a shell, a heating body, a power connection port and a conductive sheet, the heating body comprises a heating layer and two insulating layers, the heating layer is arranged between the two insulating layers, the heating body is wrapped by the shell on both sides, the heating body and the shell on both sides thereof are provided with an opening, the conductive sheet is arranged on the heating body on both sides of the opening, the power connection port is arranged on the shell on both sides of the opening, and the conductive sheet is electrically connected to the heating layer and the power connection port.

[0006] The heating sheet is a single hollow structure, the left side or the right side surface of the heating sheet is provided with an opening, and the power connection port is arranged on the shell on both sides of the opening.

[0007] The heating sheet is a three-hollow structure, the left side and the right side surface of the heating sheet are provided with openings, the power connection port is arranged on the shell on both sides of each opening, the power connection ports at the two openings are electrically connected through an electric wire, and the electric wire is arranged in the shell.

[0008] The heat-generating sheet is a double hollow structure, and the upper side and the lower side of the heat-generating sheet are provided with openings, and the power connection port is arranged on the shell outside both sides of each opening, and the two power connection ports at the openings on the front side and the rear side are electrically connected by wires, and the telescopic device includes a plurality of first telescopic chains, and each adjacent two heat-generating sheets in the plurality of heat-generating sheets arranged in parallel at equal intervals are fixedly connected with a first telescopic chain, and the leftmost heat-generating sheet in the plurality of heat-generating sheets arranged in parallel at equal intervals is fixedly connected with a first telescopic chain between the left end support plate, and the rightmost heat-generating sheet in the plurality of heat-generating sheets arranged in parallel at equal intervals is fixedly connected with a first telescopic chain between the right end support plate.

[0009] The plurality of heat-generating sheets arranged in V-shape and connected end to end are connected by connecting flaps, and the connecting flaps include a first flap plate, a second flap plate and a connecting shaft, and each adjacent two heat-generating sheets in the plurality of heat-generating sheets arranged in V-shape and connected end to end are fixedly connected with a plurality of first flap plates and a plurality of second flap plates at the connection, and the corresponding first flap plate and second flap plate are rotationally connected by the connecting shaft; the telescopic device is a plurality of springs arranged on the connecting flaps, and the spring passes through the connecting shaft and is arranged between the first flap plate and the second flap plate, and the two ends of the spring are fixedly connected to the first flap plate and the second flap plate respectively.

[0010] The telescopic device includes a plurality of second telescopic chains and a plurality of third telescopic chains, and each adjacent two heat-generating sheets in the plurality of heat-generating sheets arranged in V-shape and connected end to end are fixedly connected with a second telescopic chain, and the leftmost heat-generating sheet in the plurality of heat-generating sheets arranged in V-shape and connected end to end is fixedly connected with a third telescopic chain between the left end support plate, and the rightmost heat-generating sheet in the plurality of heat-generating sheets arranged in V-shape and connected end to end is fixedly connected with a third telescopic chain between the right end support plate.

[0011] The power connection device includes a V-shaped heat-resistant elastic insulation plastic plate, a plurality of conductive wires and two plug-in connectors, the conductive wires are arranged inside the V-shaped heat-resistant elastic insulation plastic plate, the plug-in connectors are fixedly connected to both ends of the V-shaped heat-resistant elastic insulation plastic plate, the two plug-in connectors are respectively inserted into the openings of each adjacent two heat-generating sheets in the plurality of heat-generating sheets arranged in parallel at equal intervals, and the plug-in connectors are electrically connected with the power connection port and the conductive wire.

[0012] The power connection device includes a plurality of second conductive wires, and the two ends of the second conductive wire are respectively electrically connected with the power connection port on each adjacent two heat-generating sheets in the plurality of heat-generating sheets arranged in V-shape and connected end to end.

[0013] The application discloses a telescopic convenient electric heater. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Figure 1 is a side structural schematic diagram of an embodiment one of the telescopic convenient electric heater;

[0015] Figure 2 Figure 2 is another side structural schematic diagram of the embodiment one of the telescopic convenient electric heater;

[0016] Figure 3 Figure 3 is a side structural schematic diagram of an embodiment two of the telescopic convenient electric heater;

[0017] Figure 4 Figure 4 is a side structural schematic diagram of an embodiment three of the telescopic convenient electric heater;

[0018] Figure 5 Figure 5 is another side structural schematic diagram of the embodiment two and the embodiment three of the telescopic convenient electric heater;

[0019] Figure 6 Figure 6 is a side structural schematic diagram of an embodiment four of the telescopic convenient electric heater;

[0020] Figure 7 Figure 7 is a side structural schematic diagram of an embodiment five of the telescopic convenient electric heater;

[0021] Figure 8 Figure 8 is another side structural schematic diagram of the embodiment four and the embodiment five of the telescopic convenient electric heater;

[0022] Figure 9 Figure 9 is a first structural schematic diagram of a heating sheet of the telescopic convenient electric heater;

[0023] Figure 10 Figure 10 is a second structural schematic diagram of the heating sheet of the telescopic convenient electric heater;

[0024] Figure 11 Figure 11 is a third structural schematic diagram of the heating sheet of the telescopic convenient electric heater;

[0025] Figure 12 Figure 12 is a structural schematic diagram of an embodiment six of the telescopic convenient electric heater;

[0026] Figure 13is the first structural schematic view of embodiment seven of the telescopic convenient electric heater according to the present application;

[0027] Figure 14 is the second structural schematic view of embodiment seven of the telescopic convenient electric heater according to the present application;

[0028] Figure 15 is the third structural schematic view of embodiment seven of the telescopic convenient electric heater according to the present application;

[0029] Figure 16 is the fourth structural schematic view of embodiment seven of the telescopic convenient electric heater according to the present application;

[0030] Figure 17 is the fifth structural schematic view of embodiment seven of the telescopic convenient electric heater according to the present application;

[0031] Figure 18 is the enlarged view of A of the telescopic convenient electric heater according to the present application;

[0032] Figure 19 is the enlarged view of B of the telescopic convenient electric heater according to the present application;

[0033] Figure 20 is the circuit block diagram of the telescopic convenient electric heater according to the present application;

[0034] In the figure, 1 is a heating sheet; 2 is a telescopic device; 3 is a power supply connecting device; 4 is a support; 5 is a controller; 6 is a left end support plate; 7 is a right end support plate; 8 is a first telescopic chain; 9 is a second telescopic chain; 10 is a third telescopic chain; 11 is a connecting folding leaf; 12 is a first folding leaf plate; 13 is a second folding leaf plate; 14 is a connecting shaft; 15 is a spring; 16 is a shell; 17 is a V-shaped heat-resistant elastic insulation plastic plate; 18 is a heating body; 19 is a power supply connecting port; 20 is a conductive sheet; 21 is a heating layer; 22 is an insulation layer; 23 is an opening; 24 is a plug; 25 is an electric wire; and 26 is a connecting plate. DETAILED DESCRIPTION

[0035] The present application will be described in detail below with reference to the accompanying drawings, in which Figures 1-8As shown in the figure, a portable electric heater is characterized in that it comprises a plurality of heating sheets 1, a telescopic device 2, a power connection device 3, a support 4, a controller 5, the support 4 comprises a left end support plate 6 and a right end support plate 7, the plurality of heating sheets 1 are arranged in parallel at equal intervals or in a V-shaped head-to-tail manner between the left end support plate 6 and the right end support plate 7, the left end support plate 6, the plurality of heating sheets 1 and the right end support plate 7 are connected through the telescopic device 2, the adjacent heating sheets 1 are electrically connected through the power connection device 3, the controller 5 is fixedly connected to the support 4, and the controller 5 is electrically connected to the power connection device 3.

[0036] As shown in the figure, Figures 9-11 The heating sheet 1 is a hollow structure, the heating sheet 1 comprises a shell 16, a heating body 18, a power connection port 19 and a conductive sheet 20, the heating body 18 comprises a heating layer 21 and two insulating layers 22, the heating layer 21 is arranged between the two insulating layers 22, the heating body 18 is wrapped by the shell 16 on both sides, the heating body 18 and the shell 16 on both sides thereof are provided with an opening 23, the conductive sheet 20 is arranged on the heating body 18 on both sides of the opening 23, the shell 16 on both sides of the opening 23 is provided with the power connection port 19, and the conductive sheet 20 is electrically connected with the heating layer 21 and the power connection port 19.

[0037] Embodiment one:

[0038] As shown in the figure, Figures 1-2 The plurality of heating sheets 1 are arranged in parallel at equal intervals between the left end support plate 6 and the right end support plate 7. As shown in the figure, Figure 9 The heating sheet 1 used in embodiment one is a single hollow structure, the left side or right side surface of the heating sheet 1 is provided with an opening 23, and the power connection port 19 is arranged on the shell 16 on both sides inside the opening 23.

[0039] As shown in the figure, Figures 1-2 The telescopic device 2 is a plurality of first telescopic chains 8, each adjacent two of the plurality of heating sheets 1 arranged in parallel at equal intervals are fixedly connected with a first telescopic chain 8, the leftmost heating sheet 1 of the plurality of heating sheets 1 arranged in parallel at equal intervals is fixedly connected with a first telescopic chain 8 between the left end support plate 6, and the rightmost heating sheet 1 of the plurality of heating sheets 1 arranged in parallel at equal intervals is fixedly connected with a first telescopic chain 8 between the right end support plate 7.

[0040] As shown in the figure, Figure 1As shown, the power connection device 3 comprises a V-shaped heat-resistant elastic insulating plastic plate 17, a conductive wire arranged inside the V-shaped heat-resistant elastic insulating plastic plate 17, and two plug-in connectors 24 fixedly connected at both ends of the V-shaped heat-resistant elastic insulating plastic plate 17, which are respectively inserted into the openings 23 of every adjacent two heating fins 1 arranged in parallel and at equal intervals, and the plug-in connectors 24 are electrically connected with the power connection port 19 and the conductive wire.

[0041] When the controller 5 is started, the power connection device 3 is connected with the power supply, as shown in Figure 20 As shown, the plug-in connector 24 is electrically connected with the power connection port 19, the conductive sheet 20, and the heating layer 21, and the electric energy is converted into heat energy by the heating layer 21, and then the heat is dissipated. If the electric heater is not used, the first telescopic chain 8 can be compressed to shorten the distance between the heating fins 1, and thus the volume of the electric heater is reduced, which is convenient for carrying.

[0042] Embodiment two:

[0043] As shown in Figure 3 , 5 , and 18, the plurality of heating fins 1 are arranged in a V-shaped manner between the left end support plate 6 and the right end support plate 7, and the upper surface of the left heating fin 1 is connected with the lower surface of the right heating fin 1 through the connecting fold 11, so that the electric heater has a long upper and lower and a short front and back shape. The connecting fold 11 comprises a first fold plate 12, a second fold plate 13, and a connecting shaft 14, and the adjacent two heating fins 1 in the plurality of heating fins 1 arranged in a V-shaped manner are fixedly connected with a plurality of first fold plates 12 and a plurality of second fold plates 13 at the connecting position, and the corresponding first fold plate 12 and the second fold plate 13 are rotationally connected through the connecting shaft 14.

[0044] As shown in Figure 3 , 5 , the telescopic device 2 comprises a plurality of second telescopic chains 9 and a plurality of third telescopic chains 10, the second telescopic chain 9 is fixedly connected between every adjacent two heating fins 1 in the plurality of heating fins 1 arranged in a V-shaped manner, the third telescopic chain 10 is fixedly connected between the leftmost heating fin 1 and the left end support plate 6 in the plurality of heating fins 1 arranged in a V-shaped manner, and the third telescopic chain 10 is fixedly connected between the rightmost heating fin 1 and the right end support plate 7 in the plurality of heating fins 1 arranged in a V-shaped manner.

[0045] By operating the expansion and contraction of the second telescopic chain 9 and the third telescopic chain 10, the connecting fold 11 on the heating fin 1 rotates around the connecting shaft 14, and thus the angle between the plurality of heating fins 1 arranged in a V-shaped manner is adjusted, the telescopic electric heater is realized, and the occupied area can be reduced when the electric heater is not used.

[0046] AsFigure 11 As shown, the heating plate 1 used in Example 2 is a double hollow structure, and openings 32 are provided on the front and rear surfaces of the heating plate 1. The power connection port 19 is provided on the shell 16 on both sides of the outside of each opening 23. The two power connection ports 19 at the openings 23 on the left and right surfaces are electrically connected through wires 25, and the wires 25 are provided inside the shell 16.

[0047] The power connection device 3 is a plurality of No. 2 conductive wires, both ends of which are electrically connected to the power connection ports 19 on each two adjacent heating sheets 1 in a plurality of heating sheets 1 arranged end to end in a V shape.

[0048] The controller 5 controls the connection between the power connection device 3, the power connection port 19, the conductive sheet 20, the heating layer 21 and the power supply. The heating layer 21 converts electrical energy into thermal energy, so that the electric heater emits heat.

[0049] Example 3:

[0050] like Figure 3 、 4 As shown, the difference between the third embodiment and the second embodiment is the telescopic device 2. Figure 4 、 5 As shown in Figures 19 and 20, the telescopic device 2 in the third embodiment is a plurality of springs 15 provided on the connecting hinge 11. The springs 15 pass through the connecting shaft 14 and are provided between the first hinge plate 12 and the second hinge plate 13. The two ends of the springs 15 are fixedly connected to the first hinge plate 12 and the second hinge plate 13, respectively. In a normal state, the springs 15 can maintain a certain angle between the first hinge plate 12 and the second hinge plate 13, so that the plurality of heating plates 1 between the left end support plate 6 and the right end support plate 7 are arranged end to end in a V-shape, squeezing the left end support plate 6 and the right end support plate 7 toward the middle, and the springs 15 are in a compressed state, thereby achieving compression of the electric heater.

[0051] Example 4:

[0052] like Figure 6 、 8 As shown, the difference between Example 4 and Example 2 is that several heating plates 1 are arranged end to end in a V shape between the left end support plate 6 and the right end support plate 7, wherein the wide side of the upper surface of the left heating plate 1 is connected to the wide side of the lower surface of the right heating plate 1 by a connecting hinge 11, so that the electric heater is short at the top and bottom and long at the front and back.

[0053] like Figure 10As shown, the heating plate 1 used in Example 4 is a three-hollow structure, and openings 23 are provided on the front and rear surfaces of the heating plate 1. The power connection port 19 is provided on the shell 16 on both sides of the outside of each opening 23. The power connection ports 19 at the two openings 23 are electrically connected through wires 25, and the wires 25 are provided inside the shell 16.

[0054] Embodiment 5:

[0055] like Figure 7 、 8 As shown in Figures 19, the difference between Example 5 and Example 3 is that several heating plates 1 are arranged end to end in a V shape between the left end support plate 6 and the right end support plate 7, wherein the wide side of the upper surface of the left heating plate 1 is connected to the wide side of the lower surface of the right heating plate 1 by a connecting hinge 11, so that the electric heater is short at the top and bottom and long at the front and back.

[0056] like Figure 10 As shown, the heating plate 1 used in Example 5 is a three-hollow structure, and openings 23 are provided on the front and rear surfaces of the heating plate 1. The power connection port 19 is provided on the shell 16 on both sides of the outside of each opening 23. The power connection ports 19 at the two openings 23 are electrically connected through wires 25, and the wires 25 are provided inside the shell 16.

[0057] Example 6:

[0058] like Figure 12 As shown, two or more of any type of retractable convenient electric heaters described in Examples 1 to 5 are arranged in parallel, and adjacent electric heaters are connected by a connecting plate 26, which has a rotating shaft and a buckle to achieve folding and locking of adjacent electric heaters.

[0059] Embodiment seven:

[0060] like Figures 13-17 As shown, two or more of any type of retractable convenient electric heaters described in Examples 1 to 5 are arranged in a vertical direction, and adjacent electric heaters are connected by a connecting plate 26, which has a rotating shaft and a buckle to achieve folding and locking of adjacent electric heaters.

[0061] In this embodiment, the electric heater can be extended and retracted, increasing the area of ​​the heating plate 1, while reducing the space occupied, being light in weight, and being easy to carry. At the same time, multiple electric heaters can be used in combination in vertical or horizontal directions, and can be folded and locked. While the number of heat sinks increases, the space occupied by the heater increases slightly.

[0062] The above technical solution only reflects the preferred technical solution of the present application, and some changes made by the skilled in the art to some parts thereof also reflect the principle of the present application and are within the protection scope of the present application.

Claims

1. A retractable portable electric heater, characterized in that: The invention comprises a plurality of heating sheets (1), a telescopic device (2), a power connection device (3), a bracket (4), and a controller (5); the bracket (4) comprises a left end support plate (6) and a right end support plate (7); the plurality of heating sheets (1) are arranged in parallel and at equal intervals between the left end support plate (6) and the right end support plate (7) or arranged end to end in a V-shape; the left end support plate (6), the plurality of heating sheets (1), and the right end support plate (7) are connected via the telescopic device (2); adjacent heating sheets (1) are electrically connected via the power connection device (3); the controller (5) is fixedly connected to the bracket (4); and the controller (5) is electrically connected to the power connection device (3); The heating sheet (1) is a hollow structure. The heating sheet (1) comprises a shell (16), a heating element (18), a power connection port (19), and a conductive sheet (20). The heating element (18) comprises a heating layer (21) and two insulating layers (22). The heating layer (21) is arranged between the two insulating layers (22). Both sides of the heating element (18) are wrapped by the shell (16). Openings (23) are provided on the heating element (18) and the shells (16) on both sides of the opening (23). Conductive sheets (20) are provided on the heating element (18) on both sides of the opening (23). Power connection ports (19) are provided on the shells (16) on both sides of the opening (23). The conductive sheet (20) is electrically connected to the heating layer (21) and the power connection port (19). The heating plate (1) is a three-hollow structure, and openings (23) are provided on the upper and lower surfaces of the heating plate (1). The power connection port (19) is provided on the housing (16) on both sides outside each opening (23). The power connection ports (19) at the two openings (23) are electrically connected via an electric wire (25), and the electric wire (25) is provided inside the housing (16); The power connection device (3) comprises a V-shaped heat-resistant elastic insulating plastic plate (17), a conductive wire, and two plug connectors (24). The conductive wire is arranged inside the V-shaped heat-resistant elastic insulating plastic plate (17). The plug connectors (24) are fixedly connected to both ends of the V-shaped heat-resistant elastic insulating plastic plate (17). The two plug connectors (24) are respectively inserted into the openings (23) of each adjacent two heating sheets (1) in a plurality of heating sheets (1) arranged in parallel with equal intervals. The plug connectors (24) are electrically connected to the power connection port (19) and the conductive wire.

2. A retractable portable electric heater according to claim 1, characterized in that: The telescopic device (2) comprises a plurality of No. 1 telescopic chains (8), wherein a No. 1 telescopic chain (8) is fixedly connected between each two adjacent heating sheets (1) of the plurality of heating sheets (1) arranged in parallel and at equal intervals, a No. 1 telescopic chain (8) is fixedly connected between the leftmost heating sheet (1) of the plurality of heating sheets (1) arranged in parallel and at equal intervals and the left end support plate (6), and a No. 1 telescopic chain (8) is fixedly connected between the rightmost heating sheet (1) of the plurality of heating sheets (1) arranged in parallel and at equal intervals and the right end support plate (7).

3. A retractable portable electric heater according to claim 1, characterized in that: The plurality of heating sheets (1) arranged end to end in a V-shape are connected via a connecting hinge (11), wherein the connecting hinge (11) comprises a first hinge plate (12), a second hinge plate (13), and a connecting shaft (14); two adjacent heating sheets (1) in the plurality of heating sheets (1) arranged end to end in a V-shape are respectively fixedly connected to a plurality of first hinge plates (12) and a plurality of second hinge plates (13) at a connection point; the first hinge plate (12) and the second hinge plate (13) are rotatably connected via the connecting shaft (14); the telescopic device (2) comprises a plurality of springs (15) arranged on the connecting hinge (11); the springs (15) pass through the connecting shaft (14) and are arranged between the first hinge plate (12) and the second hinge plate (13); and the two ends of the spring (15) are respectively fixedly connected to the first hinge plate (12) and the second hinge plate (13).

4. A retractable portable electric heater according to claim 1, characterized in that: The telescopic device (2) comprises a plurality of No. 2 telescopic chains (9) and a plurality of No. 3 telescopic chains (10); a No. 2 telescopic chain (9) is fixedly connected between each two adjacent heating sheets (1) in the plurality of heating sheets (1) arranged end to end in a V-shape; a No. 3 telescopic chain (10) is fixedly connected between the leftmost heating sheet (1) in the plurality of heating sheets (1) arranged end to end in a V-shape and the left end support plate (6); and a No. 3 telescopic chain (10) is fixedly connected between the rightmost heating sheet (1) in the plurality of heating sheets (1) arranged end to end in a V-shape and the right end support plate (7).

5. The retractable portable electric heater according to claim 1, characterized in that: The power connection device (3) is a plurality of No. 2 conductive wires, and both ends of the No. 2 conductive wires are electrically connected to the power connection ports (19) on each two adjacent heating sheets (1) in a plurality of heating sheets (1) arranged end to end in a V shape.

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