TWI607713B - Tension stresses absorbable heating insole - Google Patents

Description

Heated insole that absorbs tensile stress

The present invention relates to a heated insole, and more particularly to a heated insole that absorbs tensile stress.

The heating insole is mainly used in cold regions or in the frigid zone to keep the human foot warm in a cold environment without being frozen.

The principle of heating the insole is to apply the energy of the controller's battery to the coil loop of the heater chip to convert the battery's electrical energy into thermal energy to keep the foot stepped on the heated insole warm.

In the existing heating insole, the connection between the coil circuit of the heating piece and the controller is mostly connected by wires or directly connected by a heating piece. In terms of wire connection, it is easy to cause a foreign body sensation when worn due to the wire diameter of the wire, and is not conducive to the thinning of the insole; in the case of the direct extension of the heating piece, although the insole can be made thinner, since the heating pad is Straightening flat on the heating insole, when the user walks on the heated insole, the heated insole will be bent, and the physical length of the heated insole after bending will be slightly different from the length when straightening and flattening, thus resulting in When bending, tensile stress is applied to the heating pad and the welding spot of the heating pad is welded on the controller. As a result, when the heating insole is bent over a period of time and bent many times, it will easily cause heating and control. The solder joint between the soldering elements or the coil loop of the heater chip itself is broken and loses electrical connection, that is, the reliability of the electrical connection is insufficient, which has long been a problem for human beings.

Therefore, how to design an electrical connection reliability problem that can solve the above-mentioned extension of the heater chip and electrically connect to the controller is a major problem that the inventors of the present invention are trying to solve.

It is an object of the present invention to provide a heated insole that reduces the impact on the electrical connection by absorbing the tensile stress generated by the heated insole due to bending so as to heat the heating sheet in the insole and the control box. The sexual connection is not interrupted, and the reliability of the electrical connection is improved, thereby ensuring that the warmth of the foot continues.

In order to achieve the above object, the present invention provides a heating insole comprising: a insole body having a front space, a rear space, and a wave connecting passage connected between the front space and the rear space; a control box is disposed in the rear space; and a heating piece is disposed in the front space and extends to an extension of the control box, the extension is disposed in the wave connection channel Forming a wave shape corresponding to the wave-shaped connecting passage; wherein the wave-shaped connecting passage and the extending portion corresponding to the wave shape therein absorb the heat generated by the heating insole when being bent Tensile stress.

Compared with the prior art, the present invention has the following effects: the tensile stress generated by bending the heated insole due to walking is absorbed to reduce the impact on the coil circuit of the heating sheet itself and the electrical connection portion, thereby avoiding Because the bending of the heating insole causes the electrical connection between the heating sheet and the control box to break and loses the electrical connection, thereby maintaining the electrical connection between the heating sheet in the heating insole and the control box without interruption. The connection improves the reliability of the electrical connection and ensures that the warmth of the foot continues.

The detailed description and technical content of the present invention are set forth below with reference to the accompanying drawings.

As shown in Figures 1, 2, 3 and 4, the present invention provides a heated insole for laying in a shoe to keep the foot stepped on the heated insole warm. The heating insole of the present invention comprises: an insole body 1, a control box 2 and a heating sheet 3, which will be separately described below.

The insole body 1 is disposed in a shoe (not shown) and has a front space 111, a rear space 112, and a wave connecting passage 113 connected between the front space 111 and the rear space 112 (see 4), wherein the front space 111 is disposed corresponding to the sole portion of the insole body 1, and the rear space 112 is disposed corresponding to the heel portion of the insole body 1.

The insole body 1 may be an integrally formed type or a layered combination. The present invention is not limited. In the present embodiment, the layered combination is taken as an example for illustration: the insole body 1 includes adjacent to each other. The first insole body 11 and the second insole body 12 are formed between the first insole body 11 and the second insole body 12, and can be implemented according to requirements when implemented. The first insole body 11 or the second insole body 12 is described as an example of the abutment surface 114 of the first insole body 11 in the present embodiment. The invention is not limited thereto.

The undulating connecting passage 113 is formed between the first insole body 11 and the second insole body 12. Specifically, as shown in FIGS. 2 and 4, the abutting surface 114 of the first insole body 11 and the second insole body 12 The abutting faces 121 are respectively provided with at least one arc groove 115 and at least one arc protrusion 122, and the arc groove 115 and the arc protrusion 122 are corresponding to each other, and the wave connecting channel 113 is formed in the arc groove 115 and the arc convex Between the bodies 122. The number of the arc groove 115 and the arc protrusion 122 may be one or a plurality. In the embodiment, a plurality of arc grooves 115 and a plurality of arc protrusions 122 are taken as an example, as shown in FIG. 4 . It is shown that the wave-shaped connecting passage 113 includes a plurality of wave portions 1131 which are connected end to end to each other to form a continuous wave shape. In the embodiment not shown in the present invention, in the case where the number of the arc grooves 115 and the arc projections 122 is one, the wave-shaped connecting passages 113 will form a single wave shape.

The control box 2 is disposed in the rear space 112 of the insole body 1. The control box 2 is preferably fixed to the first insole body 11 by means of bonding, and the plurality of screwing elements can be further screwed to enhance the fixing effect. The control box 2 includes a plurality of electronic components. As shown in FIG. 3, in the embodiment, a circuit board 21 accommodated in the control box 2 and a battery 22 electrically connected to the circuit board 21 are included, and preferably further includes It is also electrically connected to an electrical connector 23 of the circuit board 21. Among them, the energy of the battery 22 in the control box 2 will be applied to the coil circuit of the heating sheet 3 to convert the electrical energy of the battery 22 into heat energy, so that the foot stepped on the heating insole is kept warm.

The heating sheet 3 is made of a flexible material and is disposed in the front space 111 of the insole body 1. The heating sheet 3 is preferably fixed to the first insole body 11 by bonding. The heating plate 3 further extends an extension 31. The free end of the extension 31 is electrically connected to the circuit board 21 in the control box 2 to form an electrical connection portion 312.

The extension 31 is disposed in the undulating connecting passage 113 of the insole body 1 and forms a single undulating or continuous wavy shape corresponding to the undulating connecting passage 113 (see Fig. 4). The extension 31 can include at least one wave portion 311. In this embodiment, a plurality of wave portions 311 (shown in FIG. 1 ) connected to each other are formed to form a continuous wave shape, for example, The undulating connecting passages 113 also correspond to each other to form a continuous wave shape. Preferably, the extending portion 31 is correspondingly disposed at the position of the undulating connecting passage 113 and is adhesively fixed to the insole body 1, for example, bonded and fixed to the inner groove wall or/and the arc convex body 122 of the arc groove 115 corresponding to each other. Curved surface.

As shown in FIGS. 4 and 5, the heating insole of the present invention combined by the above-mentioned members enables the extension 31 connected between the control box 2 and the heating sheet 3 to be in the shape of the wave-shaped connecting passage 113. Correspondingly, it also forms a wave shape (the wave shape includes a single wave shape and a continuous wave shape). When the user walks on the shoe having the heated insole of the present invention, the wave position of the wave portion 311 of the extended portion 31 will be the wave of the wave-shaped connecting passage 113 by the wavy design of the wave-shaped connecting passage 113 and the extending portion 31. The arc groove 115 of the portion 1131 generates interference, and the arc convex portion 122 of the wave portion 1131 of the wave-shaped connecting passage 113 also interferes with the trough position of the wave portion 311 of the extended portion 31 to absorb the heated insole when being bent. The tensile stress is generated, thereby reducing the impact on the coil circuit of the heating sheet 3 itself and the aforementioned electrical connection portion 312, and avoiding the electrical connection between the heating sheet 3 and the control box 2 due to the bending of the heating insole The 312 breaks and loses the electrical connection, so that the electrical connection between the heating sheet 3 in the heating insole and the control box 2 is kept uninterrupted and remains electrically connected, so that the warmth of the foot continues.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , in order to charge or control the set temperature of the battery 22 in the control box 2 , for example, the circuit board 21 is preferably electrically connected to the aforementioned electrical connector 23 , the insole. The first insole body 11 or the second insole body 12 of the body 1 is provided with an external socket 117 corresponding to the electrical connector 23 to insert a plug connector (not shown) corresponding to the external jack 117. The connection is electrically connected to the electrical connector 23 to achieve the purpose of charging the battery 22 or controlling the set temperature of the heater chip 3, for example.

In summary, the present invention has the following effects as compared with the prior art: by providing the extension 31 of the heating sheet 3 in the wave-shaped connecting passage 113, it is also formed in a wave shape so as to be able to walk while the user is wearing The tensile stress generated by the heated insole at the time of bending is absorbed, thereby reducing the impact on the coil circuit of the heating sheet 3 and the electrical connection portion 312, and avoiding the heating sheet 3 and the control due to the bending of the heating insole The electrical connection portion 312 between the boxes 2 is broken and loses electrical connection, so that the electrical connection between the heating sheet 3 and the control box 2 in the heating insole is maintained and the electrical connection is maintained without interruption, thereby improving the reliability of the electrical connection. Sex, which in turn ensures that the warmth of the feet continues.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural changes of the present invention and the contents of the drawings are all included in the present invention. Within the scope of the rights, it is given to Chen Ming.

1‧‧‧Insole body

11‧‧‧First insole body

111‧‧‧Pre-space

112‧‧‧ Rear space

113‧‧‧Wave connection channel

1131‧‧‧Wave Department

114‧‧‧Adjacency

115‧‧‧ arc groove

117‧‧‧External jack

12‧‧‧Second insole body

121‧‧‧Adjacent faces

122‧‧‧Arc convex

2‧‧‧Control box

21‧‧‧ boards

22‧‧‧Battery

23‧‧‧Electrical connector

3‧‧‧ heating film

31‧‧‧Extension

311‧‧‧Wave Department

312‧‧‧Electrical connection

1 is a perspective view of a heating insole of the present invention.

2 is an exploded perspective view of the heating insole of the present invention.

Figure 3 is a bottom plan view of the heated insole of the present invention.

Figure 4 is a cross-sectional view of the heated insole of the present invention before being bent.

Figure 5 is a cross-sectional view of the heated insole of the present invention after being bent.

1‧‧‧Insole body

11‧‧‧First insole body

111‧‧‧Pre-space

112‧‧‧ Rear space

113‧‧‧Wave connection channel

1131‧‧‧Wave Department

12‧‧‧Second insole body

122‧‧‧Arc convex

2‧‧‧Control box

3‧‧‧ heating film

31‧‧‧Extension

Claims (13)

A heating insole includes: a insole body having a front space, a rear space, and a wave connecting passage connected between the front space and the rear space; a control box disposed at the rear And a heating piece disposed in the pre-space and extending with an extension electrically connected to the control box, the extension being disposed in the undulating connecting channel and forming a wavy connecting channel Corresponding undulations; wherein the undulating connection channel and the extension portion corresponding thereto are wavy to absorb the tensile stress generated by the heating insole when being bent. The heated insole of claim 1 wherein the undulating connecting channel comprises at least one wave portion. The heating insole of claim 1, wherein the undulating connecting passage comprises a plurality of wave portions connected to each other to form a continuous wave shape. The heated insole of claim 1 wherein the extension comprises at least one wave portion. The heated insole of claim 1 wherein the extension comprises a plurality of undulations connected to each other to form a continuous wave. The heating insole of claim 1, wherein the insole body comprises a first insole body and a second insole body abutting each other, and the front space and the rear space are formed on the first insole body and the Between the second insole bodies. The heating insole of claim 6, wherein the abutting surface of the first insole body and the abutting surface of the second insole body are respectively provided with at least one arc groove and at least one arc protrusion corresponding to each other, the wave shape The connecting channel is formed between at least one of the arc grooves and at least one of the arc protrusions. The heating insole of claim 6, wherein the front space and the rear space are both open to an abutment surface of the first insole body. The heating insole of claim 7, wherein the arc groove and the arcuate body therein are mostly disposed. The heating insole of claim 1, wherein the heating sheet and the control box are respectively bonded to the insole body corresponding to the front space position and the rear space position. The heating insole of claim 1, wherein the control box is provided with an electrical connector, and the insole body is provided with an external socket corresponding to the electrical connector. The heating insole of claim 1, wherein the control box is provided with a circuit board and a battery electrically connected to the circuit board, and the extension of the heating piece is electrically connected to the circuit board. The heating insole of claim 1, wherein the extension of the heating sheet is disposed in a position corresponding to the undulating connecting passage and is bonded to the insole body.