CN209782800U - Folding warmer - Google Patents

Abstract

The application relates to a folding warmer, which comprises at least two warming pieces and a connecting piece, wherein the connecting piece is arranged between every two adjacent warming pieces and is rotatably connected with at least one warming piece, so that the two adjacent warming pieces can rotate relatively; the heating device is characterized in that one or more connecting pieces are arranged, at least one connecting piece is provided with a through hole, two adjacent heating pieces are electrically connected through a cable, and the cable for connecting the two adjacent heating pieces penetrates through the through hole. Through setting up the connecting piece, be provided with the rigidity between two heating pieces and support, the supporting role of connecting piece can prevent that the heating piece collapses after folding into to predetermine the shape to avoid producing deformation. Two adjacent heating pieces are electrically connected, so that a plurality of heating pieces can share a power supply, and a cable for connecting two adjacent heating pieces passes through the through hole, thereby realizing the hiding of the cable, enhancing the appearance of a product, and simultaneously avoiding the cable from exposing and damaging to cause an electric leakage safety accident.

Description

Folding warmer

Technical Field

The application relates to a heating device, in particular to a folding heater.

Background

Electric heaters are commonly used to provide heat to rooms and offices. Such heaters typically comprise a sheet metal housing in which a heating element is provided to convert electricity into heat, which can then be transferred to the ambient air by natural convection. To maximize the heating effect, it is often important to properly direct the heat generated from the heater device. Thus, electric heaters have been manufactured in various forms.

One known type of electric heater is a dado heater, which comprises an elongate housing intended to be positioned horizontally at the junction of a wall and a floor in use. Another known type of electric heater has a relatively tall, upright housing mounted on support legs. The heated air may exit through an air outlet formed substantially throughout the front face of the upright housing.

In some variant designs, the upright casing may also be provided with an opening at the top to increase the path of the heat outflow. During operation, heat may be released through the plurality of openings accordingly to warm the surrounding space. The ability to release heat along multiple paths may allow for warming an enclosed space (e.g., a room) in a faster manner, but this may not be appropriate when only localized heating work is desired. For example, a user sitting outdoors may only require localized heating from the front. In this case, the wasted heat can be dissipated through an unused heat release path provided on the electric heater, which wastes electric power when used.

Chinese patent CN207674563U discloses a mobile warmer, which is characterized in that a plurality of heating structures are disposed in a jacket, so that the heating structures can be folded into a predetermined shape, and the connection relationship is maintained through the jacket, thereby reducing the dissipation of heat and obtaining a better heat collecting effect. However, in the warmer, the middle of the warmer is indirectly connected with the plurality of heating structures through the flexible outer sleeve, and after the warmer is folded into a preset shape, the outer sleeve is easy to deform, so that the folded shape cannot be well maintained, the warmer is easy to collapse, and the use experience is influenced.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a folding room heater to the problem that the shape after folding can not be well maintained, and the folding room heater is easy to collapse and influence the use experience because the overcoat is easy to deform in the existing mobile room heater.

a folding warmer comprises at least two warming pieces and a connecting piece, wherein the connecting piece is arranged between every two adjacent warming pieces and is rotatably connected with at least one warming piece so that the two adjacent warming pieces can rotate relatively; the heating device is characterized in that one or more connecting pieces are arranged, at least one connecting piece is provided with a through hole, two adjacent heating pieces are electrically connected through a cable, and the cable for connecting the two adjacent heating pieces penetrates through the through hole.

In one embodiment, a groove is formed in the heating sheet corresponding to the connecting piece, and the connecting piece extends into the groove and is rotatably connected with the heating sheet.

in one embodiment, the connecting piece comprises a pivot, through holes are formed in two ends of the pivot, rotating shafts are arranged on the heating sheets corresponding to the pivot, two ends of the pivot respectively extend into the grooves of two adjacent heating sheets, and the rotating shafts penetrate through the through holes.

in one embodiment, the connecting piece comprises a rotating table and a protruding shaft, the protruding shaft is fixedly connected to the rotating table, the rotating table at least partially extends into the groove of the heating sheet, a containing groove is concavely formed on the side wall of the groove, the containing groove is communicated with the groove, and when the rotating table extends into the groove, the protruding shaft is contained in the containing groove;

The through hole penetrates through the rotating table and communicates the grooves of the two adjacent heating sheets, so that a cable connecting the two adjacent heating sheets penetrates through the rotating table.

In one embodiment, a concave hole is formed in the convex shaft, and the through hole is formed in the heating sheet corresponding to the concave hole;

The fixing piece penetrates through the through hole, enters the concave hole and is fixedly connected with the convex shaft.

in one embodiment, the accommodating groove is provided with a side opening, the accommodating groove is communicated with the outside through the side opening, and the convex shaft can enter and exit the accommodating groove from the side opening;

Still include the dress trim cover, the dress trim cover corresponds the side opening setting, dress trim cover detachable connect in the heating piece, and seal the side opening.

In one embodiment, the heating sheet comprises a heating part and a covered edge, the covered edge is arranged along the periphery of the heating part and fixedly connected to the heating part, and the heating part is at least partially embedded into the covered edge.

In one embodiment, the wrapping edge comprises a wrapping edge frame and a wrapping edge, the wrapping edge frame is fixedly connected through the wrapping edge, and the groove is arranged on the wrapping edge.

in one embodiment, the heat generating portion includes a heat generating layer, a heat insulating layer and a partition plate, the heat generating layer is disposed on the heat insulating layer, and the heat insulating layer is disposed on the partition plate.

in one embodiment, the controller comprises a face cover, a bottom cover, a control PCB and a power plug wire, wherein the face cover is fixedly connected to the bottom cover, a cavity is formed by the face cover and the bottom cover in a surrounding mode, the control PCB is arranged in the cavity, and the power plug wire is electrically connected to the control PCB and at least partially led out of the cavity;

The controller is fixed on one of the heating sheets, or the controller and the heating sheets are arranged in a split mode, and the heating layer of one of the heating sheets is connected to the controller through an external cable.

Above-mentioned folding room heater through set up the connecting piece between two adjacent heating pieces to make the connecting piece rotate to connect in two adjacent heating pieces at least one, from this, at least one heating piece can rotate by relative connecting piece, just also can rotate by another heating piece relatively, thereby the angle between two adjacent heating pieces of adjustment makes a plurality of heating pieces surround and forms preset shape, reaches the purpose that prevents the temperature loss. Due to the fact that the connecting piece is arranged, the rigid support is arranged between the two heating sheets, and the heating sheets can be prevented from collapsing after being folded into the preset shape under the supporting effect of the connecting piece, so that deformation is avoided. Two adjacent heating pieces are electrically connected, make a plurality of heating pieces can the power of sharing, the cable of connecting two adjacent heating pieces passes from passing through the hole, the hiding of cable has been realized, the outward appearance of product has been strengthened, avoid the cable to expose simultaneously and damage and lead to electric leakage incident, and this cable passes the walking line mode of through the hole, can be under two adjacent heating pieces folding state in the limit, if two adjacent heating pieces overlap completely, because the connecting piece has certain length all the time, can avoid the cable to be passed through foldingly, even under the limit state, the folding angle of cable can not be less than 90 yet.

Drawings

FIG. 1 is a schematic structural view of a folding warmer according to an embodiment of the present application;

FIG. 2 is a schematic structural view of another position of the folding warmer according to an embodiment of the present application;

FIG. 3 is a schematic view of an exploded structure of a heating sheet of the folding warmer according to an embodiment of the present application;

FIG. 4 is a schematic view of a partial structure of the folding warmer according to an embodiment of the present application;

FIG. 5 is a schematic view of a sectional view of a folding warmer according to an embodiment of the present application;

FIG. 6 is a schematic view of a portion of a folding warmer according to another embodiment of the present application;

FIG. 7 is a schematic view of a sectional view of a folding warmer according to another embodiment of the present application;

FIG. 8 is a schematic structural view of a connector of a folding warmer according to another embodiment of the present application;

FIG. 9 is a schematic structural view of a decorative cover of the folding warmer according to another embodiment of the present application;

FIG. 10 is a schematic structural view of a tipping frame of the folding warmer according to another embodiment of the present application;

FIG. 11 is an expanded top view of the folding warmer of the present application in accordance with yet another embodiment;

FIG. 12 is an expanded top view of the folding warmer of the present application in accordance with yet another embodiment;

fig. 13 is a schematic diagram of an exploded structure of a controller of a folding warmer according to yet another embodiment of the present application.

Detailed Description

to facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The folding room heater of this application embodiment through set up the connecting piece between two adjacent heating pieces, can avoid folding room heater to fold into and predetermine the shape after, produce deformation, maintenance that can be better predetermine folding shape.

The folding warmer of the embodiment of the present application is described in detail below with reference to the accompanying drawings.

Referring to fig. 1, 2 and 7, which schematically illustrate a structure of the folding warmer 10 according to an embodiment of the present application, the folding warmer 10 may include at least two heating sheets 110 and a connecting member 140, wherein the connecting member 140 is disposed between two adjacent heating sheets 110 and is rotatably connected to at least one heating sheet 110, so that the two adjacent heating sheets 110 can rotate relative to each other; one or more connecting pieces 140 are provided, at least one connecting piece 140 is provided with a through hole 140a, two adjacent heating sheets 110 are electrically connected through a cable, and the cable connecting two adjacent heating sheets 110 passes through the through hole 140a to hide the cable.

The connecting piece 140 is arranged between the two adjacent heating sheets 110, and the connecting piece 140 is rotatably connected to at least one of the two adjacent heating sheets 110, so that at least one heating sheet 110 can rotate relative to the connecting piece 140, and also can rotate relative to the other heating sheet 110, and the angle between the two adjacent heating sheets 110 is adjusted, so that the plurality of heating sheets 110 surround to form a preset shape, and the purpose of preventing temperature dissipation is achieved. Due to the connection members 140, rigid support is provided between the two connection members 140, and the support function of the connection members 140 can prevent the heating sheet 110 from collapsing after being folded into the preset shape, thereby avoiding deformation. Two adjacent heating fins 110 are electrically connected, make a plurality of heating fins 110 can the power supply of sharing, the cable of connecting two adjacent heating fins 110 passes from in through hole 140a, the hiding of cable has been realized, the outward appearance of product has been strengthened, avoid the cable to expose the damage simultaneously and lead to electric leakage incident, and this cable passes the line mode of walking of through hole 140a, can be under two adjacent heating fins 110 folding state of limit, if two adjacent heating fins 110 overlap completely, because connecting piece 140 has certain length all the time, can avoid the cable by the transition folding, even under the limit state, the folding angle of cable can not be less than 90 yet.

Referring to fig. 4 and 6, in some embodiments, the heating plate 110 may be provided with a groove 110a corresponding to the connecting member 140, and the connecting member 140 may extend into the groove 110a and be rotatably connected to the heating plate 110. This reduces the gap between two adjacent heating fins 110, and minimizes the heat dissipation from between the two heating fins 110.

Referring to fig. 3 to 5, in some embodiments, the connection member 140 may include a pivot 141, two ends of the pivot 141 are provided with through holes 141a, the heating fins 110 are provided with rotating shafts 112 corresponding to the pivot 141, and two ends of the pivot 141 respectively extend into the grooves 110a of two adjacent heating fins 110, so that the rotating shafts 112 pass through the through holes 141a, and the pivot 141 can rotate around the rotating shafts 112. At this time, the pivot 141 can rotate with respect to two adjacent heating fins 110. Specifically, when the two heating sheets 110 are rotated, one of the heating sheets 110 is fixed relatively, the other heating sheet 110 is swung, and the other heating sheet 110 is rotated relative to the pivot 141 when being stressed, so that the two adjacent heating sheets 110 are folded mutually. When rotated to a certain angle, the pivot 141 can rotate relative to the rotating shaft 112 on the fixed heating sheet 110, so that the movable heating sheet 110 continues to rotate relative to the fixed heating sheet 110, and finally the two heating sheets 110 are completely folded and parallel to each other.

Referring to fig. 3, 6 to 8, in other embodiments, the connection member 140 may include a rotating table 143 and a protruding shaft 145, the protruding shaft 145 is fixedly connected to the rotating table 143, the rotating table 143 at least partially extends into the recess 110a of the heating sheet 110, a sidewall of the recess 110a is recessed to form a receiving groove 110b, the receiving groove 110b is communicated with the recess 110a, when the rotating table 143 extends into the recess 110a, the protruding shaft 145 is received in the receiving groove 110b, the through hole 140a penetrates through the rotating table 143 and communicates the recesses 110a of two adjacent heating sheets 110, so that the cable connecting two adjacent heating sheets 110 passes through the rotating table 143, and the cable is hidden. For example, in the illustrated embodiment, four protruding shafts 145 may be correspondingly provided on each rotating base 143, receiving grooves 110b may be provided on opposite sidewalls of the groove 110a corresponding to the protruding shafts 145, both ends of the rotating base 143 may be respectively fitted into the grooves 110a of two adjacent heating fins 110, and the two protruding shafts 145 may be vertically fitted into the receiving grooves 110b of the heating fins 110, so that the heating fins 110 may rotate relative to the rotating base 143 about the protruding shafts 145, and thus the two adjacent heating fins 110 may rotate relative to each other. Of course, in other embodiments, only two or three protruding shafts 145 may be provided on each rotating platform 143, and the rotation can be achieved only by inserting at least one protruding shaft 145 corresponding to each heating sheet 110 into the receiving groove 110 b.

In one or more embodiments, the protruding shaft 145 is provided with a concave hole 145a, the heating sheet 110 is provided with a through hole 110c corresponding to the concave hole 145a, and the folding warmer 10 further includes a fixing member 150, and the fixing member 150 penetrates through the through hole 110c, enters the concave hole 145a, and is fixedly connected to the protruding shaft 145. For example, the fixing member 150 may be a screw that fixes the rotation table 143 to prevent the rotation table 143 from being detached when rotating. In addition, the protruding shaft 145 can be completely fixed by adjusting the locking degree of the screw, so that the heating sheet 110 is not rotatable relative to the rotating table 143. It will be appreciated that, in order to avoid the protruding shaft 145 from being locked, the inner wall of the through hole 110c is smooth, and the portion of the screw corresponding to the through hole 110c is not threaded.

referring to fig. 6 and 9, in one or more embodiments, the connector 140 is removably connected to the heating panel 110. In order to detach the connecting member 140, the receiving groove 110b is opened with a side opening 110d, and the receiving groove 110b is communicated with the outside through the side opening 110d, so that the protruding shaft 145 can enter and exit the receiving groove 110b from the side opening 110d to achieve the assembling and disassembling; the decoration cover 160 is arranged corresponding to the side opening 110d of the folding warmer 10, and the decoration cover 160 is detachably connected to the warming sheet 110 and closes the side opening 110 d. When the decoration cover 160 is fixed on the heating sheet 110, the protruding shaft 145 cannot be taken out of the receiving groove 110b due to the blocking of the decoration cover 160; and when the deco-cover 160 is detached, the protruding shaft 145 can be taken out from the side opening 110 d. For example, the decoration cover 160 can be detachably connected to the heating sheet 110 by a buckle, the decoration cover 160 extends outward to form a hook 161, a slot (not shown) is formed on the sidewall of the accommodating groove 110b corresponding to the hook 161, the hook 161 is embedded into the slot and is clamped in the slot, when the decoration cover 160 needs to be detached, only an external force needs to be directly or indirectly applied to the hook 161, so that the hook 161 and the slot are separated from the clamping, and the decoration cover 160 can be detached.

It will be appreciated that the folding warmer 10 can have both of the above-described configurations of the connecting members 140, for example, in the illustrated embodiment, two adjacent warming sheets 110 are connected to each other by two connecting members 140, one of the two connecting members 140 being in the form of a pivot 141 and the other being in the form of a rotating table 143.

In the above embodiment, the connecting member 140 is configured such that the connecting member 140 can rotate relative to each of two adjacent heating sheets 110 to adjust the folding angle between the two adjacent heating sheets 110, and 360 ° blind-angle rotation between the two adjacent heating sheets 110 can be achieved. In other embodiments, the connecting member 140 can be fixed with respect to one of the two adjacent heating sheets 110 and can be rotatably connected with the other heating sheet, and the folding angle can be adjusted. For example, when the fixing member 150 is provided, the fixing member 150 is provided as a screw, and the protruding shaft 145 on one side is completely locked by the screw so that the protruding shaft 145 cannot rotate, and at this time, the corresponding heating sheet 110 cannot rotate with respect to the connecting member 140, and the heating sheet 110 on the other side, which is not locked by the protruding shaft 145, can rotate with respect to it.

Referring to fig. 1, the heating sheet 110 may include a heating portion 120 and a covering edge 130, the covering edge 130 is disposed along the periphery of the heating portion 120 and is fixedly connected to the heating portion 120, and the heating portion 120 is at least partially embedded in the covering edge 130.

Referring to fig. 3, the wrapping edge 130 may include a wrapping edge frame 131 and a wrapping edge 133, the wrapping edge frame 131 is fixedly connected by the wrapping edge 133, and the groove 110a and the through hole 110c may be disposed on the wrapping edge 133.

Referring to fig. 4, 6 and 7, the hemming frame 131 and the hemming corner 133 may be detachably connected. For example, a tube 131a may be provided in the hem frame 131 to reduce weight, and the hem corners 133 may be at least partially embedded in the tube 131a to provide a detachable fastening.

For example, referring to fig. 10, the frame 131 may include a U-shaped tube 1311 and a horizontal plate 1313, the horizontal plate 1313 is disposed in the U-shaped tube 1311 and fixedly connected to the U-shaped tube 1311, the U-shaped tube 1311 has an opening, the horizontal plate 1313 has a predetermined distance from the opening, so that the horizontal plate 1313 separates the U-shaped tube 1311 into two isolated regions, the horizontal plate 1313 and the bottom of the U-shaped tube 1311 form a tube 131a, a receiving portion 131b is formed between the horizontal plate 1313 and the opening, and the heat generating portion 120 is at least partially embedded in the receiving portion 131 b.

Referring to fig. 4, 6 and 7, the wrapping edge 133 may include a main body part 1331 and an insertion part 1333, the wrapping edge 133 is disposed corresponding to a corner of the heating sheet 110, the main body part 1331 is a chamfered structure, the groove 110a and the through hole 110c are disposed on the main body part 1331, the insertion parts 1333 are respectively disposed at two ends of the main body part 1331, and the insertion parts 1333 are inserted into the pipes 131a of the wrapping frame 131.

In one or more embodiments, the insertion portion 1333 may be provided with a sliding groove 133a, the inner wall of the pipe 131a of the frame 131 may be provided with a sliding strip (not shown) corresponding to the sliding groove 133a, and when the insertion portion 1333 is inserted into the pipe 131a, the sliding strip is at least partially accommodated in the sliding groove 133 a. This facilitates insertion of the insertion portion 1333, and increases the friction force when the rounded portion 133 is removed, thereby preventing the rounded portion 133 from being removed at will.

The hemming frame 131 and the hemming edge 133 may be made of aluminum or plastic to reduce the weight of the hemming 130.

referring to fig. 3, the heat generating unit 120 may include a heat generating layer 121, a heat insulating layer 123 and a partition 125, the heat generating layer 121 is disposed on the heat insulating layer 123 for dissipating heat, the heat insulating layer 123 is disposed on the partition 125 for preventing heat from diffusing through the heat insulating layer 123, and the partition 125 is used for providing support and further insulating heat. The heating layer 121 may be provided therein with a heating element, which may be an existing heating element, such as a carbon crystal heating element or a graphene heating element, as long as heating can be achieved.

In a specific embodiment, the partition 125 may be made of a heat insulating material and has the function of the heat insulating layer 123, and in this case, the heat insulating layer 123 may not be provided.

Referring to fig. 11, in some embodiments, the folding warmer 10 may further include a controller 170, wherein the controller 170 is electrically connected to the heating layer 121 for controlling the heating of the heating layer 121, and the control principle may be similar to the heating control of a conventional electric blanket.

Referring to fig. 13, the controller 170 may include a surface cover 171, a bottom cover 172, a control PCB 173 and power plug wires 174, the surface cover 171 is fixedly connected to the bottom cover 172, and a cavity 170a is defined by the surface cover 171 and the bottom cover 172, the control PCB 173 is disposed in the cavity 170a, the power plug wires 174 are electrically connected to the control PCB 173 and at least partially led out of the cavity 170a, and the power plug wires 174 are used for connecting an external power source.

In the embodiment shown in fig. 11, the controller 170 is secured to one of the heating panels 110. For example, the heating sheet 110 may be provided with a notch corresponding to the controller 170, and the controller 170 is assembled at the notch, specifically, when assembled, the heating sheet 110 may be partially embedded between the front shell and the bottom shell, and the covering edge 130 may at least partially extend into the cavity 170a, so as to enhance the tightness of the connection between the controller 170 and the heating sheet 110.

Referring to fig. 12, in other embodiments, the controller 170 may also be separately disposed from the heating sheets 110, wherein the heating layer 121 of one heating sheet 110 is connected to the controller 170 through an external cable, and at this time, the controller 170 may be externally connected.

in other embodiments, the controller 170 is removably coupled to one of the heating panels 110. In this case, the controller 170 may be externally connected to the heating sheet 110 as well as fixedly connected to the heating sheet. For example, there may be surplus cables connecting the heat generating layer 121 and the control PCB 173, and the surplus cables may be gathered in the cavity 170a, so that it may be ensured that the cables have a sufficient length when the controller 170 is disassembled.

The control PCB 173 is provided with a control circuit, which may be an existing heater control circuit, for example, similar to an electric blanket.

Referring to fig. 3, in one or more embodiments, the folding warmer 10 further includes a temperature sensor 180, the temperature sensor 180 may be disposed on the thermal insulation layer 123 and electrically connected to the control PCB 173, and the control PCB 173 may control the temperature of the heating element according to the temperature parameter fed back by the temperature sensor 180. The specific temperature feedback control scheme may refer to the existing feedback control scheme of the temperature sensor 180: when the temperature is detected to exceed a threshold value, cutting off the power supply of the heating element to enable the heating element to work at low power or not work; when the detected temperature is lower than another threshold value, the heat generating body is operated at high power.

When the folding warmer 10 is used, two hands respectively act on two adjacent heating sheets 110, and force directed to the heating layer 121 from the partition 125 is applied, so that the two adjacent heating sheets 110 rotate relative to the connecting member 140, the folding angle between the two adjacent heating sheets 110 changes, and at this time, the two adjacent heating sheets 110 have a tendency to fold. Apply the effort to all heating pieces 110 in proper order for arbitrary two adjacent heating pieces 110 accomplish the folding angle adjustment, at this moment, all heating pieces 110 surround and form a heating area of closing relatively, generate heat the layer 121 and be located the one side that is close to the heating area, the layer 121 begins work of generating heat through controller 170 control, the heat-generating body generates heat, heat conduction is in the heating area, thereby heat the heating area, when the corresponding position of human body enters into the heating area, can be through the air to the human body heating.

when the folding warmer is used, external force acts on two adjacent heating sheets 110, so that one heating sheet 110 is relatively fixed, the other heating sheet 110 rotates relative to the connecting piece 140, the other heating sheet 110 rotates relative to the fixed heating sheet 110, and in the rotating process, the connecting piece 140 also rotates relative to the fixed heating sheet 110, and finally, the two adjacent heating sheets 110 are mutually stacked to finish folding. For example, any two adjacent heating sheets 110 are stacked on each other, so that all the heating sheets 110 are folded in an S-shape, and the folding and gathering of the folding warmer 10 is completed.

In the folding warmer 10, the connecting piece 140 is arranged between the two adjacent heating sheets 110, and the connecting piece 140 is rotatably connected to at least one of the two adjacent heating sheets 110, so that at least one heating sheet 110 can rotate relative to the connecting piece 140, and also can rotate relative to the other heating sheet 110, thereby adjusting the angle between the two adjacent heating sheets 110, enabling the plurality of heating sheets 110 to surround to form a preset shape, and achieving the purpose of preventing temperature dissipation. Due to the connection member 140, a rigid support is provided between the two heating sheets 110, and the support function of the connection member 140 can prevent the heating sheets 110 from collapsing after being folded into a preset shape, thereby avoiding deformation. Two adjacent heating fins 110 are electrically connected, make a plurality of heating fins 110 can the power supply of sharing, the cable of connecting two adjacent heating fins 110 passes from in through hole 140a, the hiding of cable has been realized, the outward appearance of product has been strengthened, avoid the cable to expose the damage simultaneously and lead to electric leakage incident, and this cable passes the line mode of walking of through hole 140a, can be under two adjacent heating fins 110 folding state of limit, if two adjacent heating fins 110 overlap completely, because connecting piece 140 has certain length all the time, can avoid the cable by the transition folding, even under the limit state, the folding angle of cable can not be less than 90 yet.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The folding warmer is characterized by comprising at least two heating sheets and a connecting piece, wherein the connecting piece is arranged between two adjacent heating sheets and is rotatably connected to at least one heating sheet so that the two adjacent heating sheets can rotate relatively; the heating device is characterized in that one or more connecting pieces are arranged, at least one connecting piece is provided with a through hole, two adjacent heating pieces are electrically connected through a cable, and the cable for connecting the two adjacent heating pieces penetrates through the through hole.

2. The folding warmer as claimed in claim 1, wherein a groove is provided on the warming sheet corresponding to the connecting member, and the connecting member extends into the groove and is rotatably connected to the warming sheet.

3. the folding warmer as claimed in claim 2, wherein the connecting member comprises a pivot, two ends of the pivot are provided with through holes, the warming sheets are provided with rotating shafts corresponding to the pivot, two ends of the pivot respectively extend into the grooves of two adjacent warming sheets, and the rotating shafts penetrate through the through holes.

4. The folding warmer of claim 2, wherein the connecting member comprises a rotary table and a protruding shaft, the protruding shaft is fixedly connected to the rotary table, the rotary table at least partially extends into the groove of the warming sheet, a receiving groove is concavely formed on a side wall of the groove, the receiving groove is communicated with the groove, and the protruding shaft is received in the receiving groove when the rotary table extends into the groove;

The through hole penetrates through the rotating table and communicates the grooves of the two adjacent heating sheets, so that a cable connecting the two adjacent heating sheets penetrates through the rotating table.

5. The folding warmer as claimed in claim 4, wherein the protruding shaft is provided with a concave hole, and the warming sheet is provided with the through hole corresponding to the concave hole;

The fixing piece penetrates through the through hole, enters the concave hole and is fixedly connected with the convex shaft.

6. The folding warmer as claimed in claim 4, wherein the receiving slot is opened at one side, the receiving slot is connected to the outside through the side opening, and the protruding shaft can enter and exit the receiving slot from the side opening;

still include the dress trim cover, the dress trim cover corresponds the side opening setting, dress trim cover detachable connect in the heating piece, and seal the side opening.

7. The folding warmer as claimed in claim 2, wherein said heating sheet includes a heat generating portion and a covering, said covering being disposed along a periphery of said heat generating portion and fixedly attached to said heat generating portion, said heat generating portion being at least partially embedded in said covering.

8. the folding warmer as claimed in claim 7, wherein the wrapping includes a wrapping frame and a wrapping corner, the wrapping frame is fixedly connected by the wrapping corner, and the groove is disposed on the wrapping corner.

9. The folding warmer as claimed in claim 7, wherein the heat generating unit comprises a heat generating layer, a heat insulating layer and a partition, the heat generating layer is disposed on the heat insulating layer, and the heat insulating layer is disposed on the partition.

10. The folding warmer of claim 9, further comprising a controller, wherein the controller comprises a face cover, a bottom cover, a control PCB board and power plug wires, the face cover is fixedly connected to the bottom cover, and a cavity is defined by the face cover and the bottom cover, the control PCB board is disposed in the cavity, and the power plug wires are electrically connected to the control PCB board and at least partially led out of the cavity;

The controller is fixed on one of the heating sheets, or the controller and the heating sheets are arranged in a split mode, and the heating layer of one of the heating sheets is connected to the controller through an external cable.