WO2015027489A1

WO2015027489A1 - Electric warmer

Info

Publication number: WO2015027489A1
Application number: PCT/CN2013/082731
Authority: WO
Inventors: 谢虹
Original assignee: Xie Hong
Priority date: 2013-08-29
Filing date: 2013-08-30
Publication date: 2015-03-05
Also published as: CN103405302A

Abstract

An electric warmer (1) comprises a shell body and an electric heating sheet (4). The shell body comprises a surface shell (2) and a back shell (3). The electric warmer (1) also comprises a heat-conductive sheet (9) that is fixed on the surface shell (2). The electric heating sheet (4) is fixed on the heat-conductive sheet (9). Because the electric heating sheet (4) is arranged between the heat-conductive sheet (9) and the surface shell (2), the heat-conductive sheet (9) is not inside the shell body. The heat-conductive sheet (9) has good heat conductivity, and can effectively transfer heat generated by the electric heating sheet (4) to a user, greatly improving heating effect of the electric warmer (1).

Description

Electric heating treasure

[Technical Field]

The invention relates to the field of hand warmers and, more particularly, to an electric heating treasure. 【Background technique】

With the improvement of people's living standards, electric heating treasure has become a must-have for the family, not only for heating, but also for physical therapy or hot compress.

I have designed an electric heating treasure, comprising a casing and a heating piece fixed inside the casing, a rechargeable battery for supplying the electric heating piece, a circuit board for controlling the working state of the electric heating treasure, and the circuit The board is provided with a first escaping hole adapted to the shape of the charging interface through a charging interface connected by a wire; the circuit board is provided with a control switch and a working indicator, the electric heating sheet and the circuit The boards are connected by wires, and the battery and the circuit board are connected by wires; the control switch is a push-pull switch, and there are two states to control the working state of the electric heating treasure, and the control switch is Locating a push switch, the housing is provided with a second escape hole adapted to the shape of the push switch; the electric heating sheet is fixed on an inner wall of the housing; The body is generally mango-shaped, including a shell and a back shell, and the shell and the back shell are fixed by screws. The housing is made of plastic. This program is not public. The thermal conductivity of the plastic material is poor, and the power of the heating sheet is specific, which will affect the heating effect of the electric heating treasure.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide an electric heating treasure with better heating effect.

The object of the present invention is achieved by the following technical solutions: an electric heating treasure, comprising a casing and a heating sheet; the casing comprises a face shell and a rear shell; the electric heating treasure further comprises a fixed a heat conducting sheet on the face shell, the electric heating sheet being fixed on the heat conducting sheet.

Preferably, the electric heating treasure further comprises a circuit board disposed inside the casing, wherein the electric heating sheet and the circuit board are connected by two wires, and the surface shell is provided with a wire avoiding hole. Setting guide The wire escaping hole facilitates the connection of the heating sheet and the circuit board with wires.

Preferably, the electric heating sheet is fixed on the thermal conductive sheet with double-sided tape. The double-sided tape has strong adhesion, and the double-sided tape is a kind of solid glue, which does not overflow like liquid glue when used.

Preferably, the heat conducting sheet is fixed on the surface shell by screws, and the heat conducting sheet is provided with a first screw hole, and a second screw hole is disposed at a corresponding position on the surface shell. Screw the operating cylinder.

Preferably, the outer surface of the surface shell is provided with a concave first placing table, and the first placing table is disposed corresponding to the size of the heat conducting sheet. The first placing table acts on the limit of the heat transfer piece, so that when the heat conductive piece is fixed by screws, the heat conductive piece does not slide on the outer surface of the surface case.

Preferably, the first placing table is provided with a concave second placing table, the height of the first placing table is equal to the thickness of the heat conducting sheet, and the second placing table is to the first The height of the placement table is equal to the thickness of the heater. This allows the electric heating sheet to be placed in the second placing table, and after the combination of the electric heating sheet, the heat conducting sheet and the face shell, the flatness of the outer surface of the surface shell can be ensured.

Preferably, the heat conducting sheet is further provided with a protruding ossicle, and the face shell is provided with a slot for use with the ossicle. Set the slot for the ossicle and the ossicle, and fix the heat transfer plate and the cover with screws. The heat transfer plate will not shake.

Preferably, the two inserted bones are disposed on two sides of one end portion of the heat conducting sheet, and the first screw hole is located at an intermediate position of the other end of the heat conducting sheet. This is the specific setting of the insertion hole on the thermal pad and the first screw hole.

Preferably, a wire connecting the circuit board and the electric heating piece is welded to an end of one end of the heating piece, and a third recessed place for avoiding a solder joint is disposed at a corresponding position of the second placing table. The wire avoiding hole is located at one side of the third placing table. This arrangement is also to ensure that the thermal pad is in seamless contact with the first placement stage after the thermal pad is secured to the cover.

Preferably, the thermal conductive sheet is an aluminum sheet. The aluminum sheet has good thermal conductivity, and the aluminum sheet is lighter, which does not make the electric heating treasure too heavy.

In the present invention, since the electric heating sheet is disposed between the heat conducting sheet and the face shell, the heat conducting sheet is not in the casing. Internal, and the thermal conductivity of the thermal conductive sheet is good, and the heat generated by the electric heating sheet can be effectively transmitted to the user, which greatly improves the heating effect of the electric heating treasure.

[Description of the Drawings]

1 is a schematic overall view of an electric heating treasure according to an embodiment of the present invention;

2 is a schematic diagram of splitting of an electric heating treasure according to an embodiment of the present invention;

3 is a schematic diagram of a circuit board according to an embodiment of the present invention;

4 is a schematic diagram of a push switch according to an embodiment of the present invention;

Figure 5 is a schematic view of a thermally conductive sheet according to an embodiment of the present invention;

Figure 6 is a schematic view of the outer surface of the face shell of the embodiment of the present invention;

7 is a schematic view showing the combination of a heat conductive sheet and an electric heating sheet according to an embodiment of the present invention;

Figure 8 is a schematic view showing the inside of a face shell according to an embodiment of the present invention;

Fig. 9 is a schematic view showing the inside of a rear case of an embodiment of the present invention.

Among them: 1, electric heating treasure; 2, face shell; 20, slot; 21, the second screw hole column; 22, the third screw hole column; 24, the first limit groove; 25, the third avoidance half hole; 26, the first avoidance half hole; 27, the first placement table; 28, the second screw hole; 29, the third placement table; 201, the second placement table; 3, the rear case; 31, the first screw hole column; Positioning column; 34, first limiting part; 35, fourth avoiding half hole; 36, second avoiding half hole; 4, electric heating piece; 5, battery; 6, charging interface; 7, circuit board; 72; indicator light; 8, push-twist switch; 81, panel; 82, strip-shaped dial; 83, surrounding bone; 9, thermal pad; 91, first screw hole; 92, osteogenesis.

【detailed description】

An electric heating treasure comprising a casing and a heating sheet; the casing comprises a face shell and a rear shell; the electric heating treasure further comprises a heat conducting piece fixed on the face shell, the electric heating A sheet is attached to the thermally conductive sheet. In the present invention, since the electric heating sheet is disposed between the heat conducting sheet and the surface shell, the heat conducting sheet is not inside the casing, and the thermal conductive sheet has good thermal conductivity, and can effectively transfer the heat generated by the electric heating sheet to the user. Greatly improved the heating effect of electric heating treasure.

The invention will now be further described with reference to the drawings and preferred embodiments.

As shown in Figure 1-9, the electric heating treasure 1 includes a casing, a heating sheet 4, a rechargeable battery for powering the heating sheet 4, a circuit board 7 for controlling the working state of the electric heating panel 1, and a charging interface 6. The housing is in the shape of a mango, and includes a surface shell 2 and a rear shell 3. The electric heating treasure 1 further includes a heat conducting sheet fixed on the surface shell 2 and having the same shape as the surface shell 2, and the electric heating sheet 4 is fixed on the heat conducting sheet 9. .

Since the double-sided adhesive has strong adhesion, and the double-sided adhesive is a kind of solid glue, it does not overflow like a liquid glue when used, and the electric heating sheet 4 is fixed on the heat conductive sheet 9 with double-sided tape. The outer surface of the face shell 2 is provided with a first placing table 27 corresponding to the size of the heat conducting sheet 9 and limiting the heat conducting sheet 9. On the first placing table 27, a second placing for placing the heating sheet 4 is further disposed. The distance between the first placing table 27 and the outer surface of the face shell 2 is the same as the thickness of the heat conducting sheet 9. The height of the second placing table 201 to the first placing table 27 is the same as the thickness of the heat conducting sheet 9, so that the heating sheet 4 can be made. It is placed in the second placing table 201, and after the combination of the heating sheet 4, the heat conducting sheet 9 and the face shell 2, the flatness of the outer surface of the face shell 2 can be ensured. The heating sheet 4 and the circuit board 7 are connected by two wires, and the wires connecting the circuit board 7 and the electric heating sheet 4 are welded to the end of one end of the heating fin 4, and the corresponding position of the second placing table 201 is provided with a recess. The third placing table 29 for avoiding the solder joints is provided with a wire avoiding hole (not shown) on one side of the third placing table 29.

The heat conducting sheet 9 is fixed to the face shell 2 by screws, and a first screw hole 91 is disposed at an intermediate position of one end of the heat conducting sheet 9, and a first screw hole 91 is provided at a corresponding position of the face shell 2 Two screw holes 28, the other end of the heat conducting sheet are provided with an ossicle 92 on each side of the other end, and the corresponding surface shell is provided with a slot 20 for use with the ossicle 92. A schematic diagram of the combination of a heat conductive sheet and a heating sheet, as shown in FIG.

The face shell 2 and the rear case 3 are fixed by screws, and the face shell 2 and the rear case 3 are fixed by screws, so that when there is a problem in the electric heating treasure 1, the electric heating treasure 1 is taken apart, and the components inside the casing are inspected. The face shell is provided with a screw hole, and a corresponding position of the inner surface of the rear case 3 is provided with a first screw hole post 31 for use with the screw hole. The surface of the face shell 2 corresponding to the screw hole is provided with a protruding second screw hole post 21, the height of the second screw hole post 21 and the height of the first screw hole post 31 and the inside of the face shell 2 and the rear case 3 The distance is the same. A screw threaded with the screw is disposed inside the second screw hole post 21 and the first screw hole post, so that it is more convenient to fix the face shell 2 and the rear shell 3 with screws. A recessed screw placement platform is provided on the outer surface of the face shell 2 corresponding to the screw hole, so that the screw does not protrude outside the face shell 2, thereby ensuring the flatness of the face shell 2.

A positioning post 32 is disposed on the rear case 3. Correspondingly, the face shell 2 is provided with a positioning post insertion hole 22 for use with the positioning post. The positioning post 32 is inserted into the positioning post insertion hole 22, and can be performed on the face shell and the rear case. Limiting, such that when the housing is fixed by screws, the housing is not misaligned; the positioning post insertion hole 22 is located on the opposite side of the second screw hole post 21 disposed on the side of the face shell 2, and the positioning post 32 is located at the first screw The opposite side of the column 31. There are two positioning posts 32. The height of the positioning post 32 is higher than the height of the rear case 3 and the height of the positioning post receptacle 22 is flush with the height of the face shell 2, so that the positioning post 32 can be inserted into the face shell 2 for positioning. Inside the column jack 22.

The face shell 2 and the rear shell 3 are fixed by three screws. Correspondingly, one screw hole is provided at both ends and one side of the shell shell 2, then the first screw hole column 31 is also located at both ends of the rear shell 3 and one The positioning post 32 is maximized, and the positioning post 32 is disposed on the side of the rear case 3 where the second screw hole post is not provided.

As shown in Figures 5 and 6, the sides of the face shell 2 and the rear shell 3 are fully enclosed and surrounded by side walls. The inner wall of the rear shell 3 is provided with a protruding first ring limiting portion 34. The end of the side wall of the outer shell 2 is provided with a first limiting slot 24 that cooperates with the first limiting portion 34. The first limiting slot 24 The height of the first limiting portion 34 is equal to the height of the first limiting portion 34, and the width of the first limiting portion 24 is equal to the thickness of the first limiting portion 34. The first limiting portion 34 and the first limiting slot 24 engaged with the first limiting portion 34 are disposed, so that the first limiting portion 34 on the rear casing 3 can be inserted into the first limiting slot fixed to the surface shell 2 24, so that the face shell 2 and the rear case 3 are not staggered when fixed by screws, and the face shell 2 and the rear case 3 can be fixed without a gap therebetween.

The electric heating treasure 1 further includes a usb data line, and the interface of one end of the USB data line is adapted to the shape of the charging interface 6, and the housing is provided with a first escape hole adapted to the charging interface 6. In this way, the usb data cable can be used to charge it. At work, the electric heater is used up, and it can be charged by using the computer in the office. The circuit board 7 is provided with a control switch 71 and two indicator lights, and the control switch 71 is The push switch, the control switch 71 has two states, and a push switch 8 is sleeved, and a corresponding second position of the push switch 8 is provided at a corresponding position of the housing; the indicator light 72 includes a red light. And a green light, the red light indicates the working state of the electric heating treasure. When the electric heating treasure works, the red light is on; the green light indicates the charging state of the electric heating treasure, the green light indicates that the charging is in progress, and when the green light is off, the charging is completed or not charged. The indicator light 72 and the control switch 71 are located on the same side of the circuit board 7. The push switch 8 includes an elliptical panel 81 and an outwardly projecting strip-shaped dial 82 disposed at an intermediate position of the panel 81, and is disposed in the middle of the opposite side of the strip-shaped dial 82 of the panel 81. The surrounding bone 83 at the position, the control switch 7 is sleeved in the surrounding bone 83; the length of the surrounding bone 83 is equal to the shortest distance from the control switch 7 to the outside of the housing, so that after assembly, the panel of the push switch 8 will be in close contact with The outside of the housing. The first escape hole corresponds to a third escape half hole 25 disposed on the face shell 2 and a fourth escape half hole 35 disposed on the rear case 3; the second escape hole corresponds to the first avoidance provided on the face shell 2 The half hole 26 and the second escaping half space 36 provided on the rear case 3.

The heating sheet 4 and the circuit board 7 are connected by two wires, and the battery 5 and the circuit board 7 are also connected by two wires; one end of the wire connecting the battery 5 and the circuit board 7 is soldered on the circuit board, and One end is disposed on the circuit 7; two protruding soldering points are disposed at one end of the heating fin 4, and one end of the connecting wire connecting the heating fin 4 and the circuit board 7 is soldered on the soldering point on the heating fin 4, and the other end is soldered to the circuit On board 7. The charging interface 6 and the circuit board 7 adopt a split design. In other words, the charging interface 6 is not disposed on the circuit board 7. The charging interface 6 and the circuit board 7 are also connected by two wires, and the tail of the charging connection 6 is set. There are two outwardly projecting and parallel wire connecting portions, one end of which is soldered to the wire connecting portion, and the other end of the wire is soldered to the circuit board 7.

The above is a further detailed description of the present invention in conjunction with the specific preferred embodiments. It is not intended that the specific embodiments of the invention are limited to the description. It will be apparent to those skilled in the art that the present invention can be made without departing from the spirit and scope of the invention.

Claims

Rights request

1. An electric heater, characterized in that it includes a shell and an electric heating sheet; the housing includes a front shell and a rear shell; the electric heater also includes a heat conductive sheet fixed on the front shell , the electric heating sheet is fixed on the thermal conductive sheet.

2. The electric heater according to claim 1, characterized in that, the electric heater further includes a circuit board arranged inside the front case and the back case, and the electric heater and the circuit board pass through The wires are connected, and the surface shell is provided with wire avoidance holes.

3. The electric heating device according to claim 2, characterized in that the electric heating plate is fixed on the thermal conductive plate with double-sided tape.

4. The electric heater according to claim 3, characterized in that, the thermal conductive sheet is fixed on the face shell with screws, the thermal conductive sheet is provided with a first screw hole, and the thermal conductive sheet is provided with a first screw hole. A second screw hole is provided at the corresponding position.

5. The electric heater according to claim 4, characterized in that a concave first placing platform is provided on the outer surface of the surface shell, and the first placing platform is set corresponding to the size of the thermal conductive sheet.

6. The electric heater according to claim 5, wherein the first placing platform is provided with a concave second placing platform, and the height of the first placing platform is equal to the thickness of the thermal conductive sheet. , the height from the second placement platform to the first placement platform is equal to the thickness of the electric heating sheet.

7. The electric heater according to claim 6, wherein the heat conductive sheet is further provided with a protruding rib, and the surface shell is provided with a slot for use in conjunction with the rib.

8. The electric heater according to claim 7, characterized in that, there are two said ribs, which are arranged on both sides of one end of the thermal conductive sheet, and the first screw hole is located on the thermal conductive sheet. in the middle of the other end.

9. The electric heating device according to claim 8, characterized in that the wire connecting the circuit board and the electric heating plate is welded to the end of one end of the electric heating plate at the corresponding position of the second placement platform. A concave third placement platform is provided for avoiding solder joints; the wire escape hole is located on the third placement platform. one side.

10. The electric heater according to any one of claims 1 to 9, characterized in that the heat conductive sheet is an aluminum sheet.