Touch sensing structure for intelligent plush product

Abstract

The utility model discloses a touch sensing structure for an intelligent plush product, which comprises a machine core and a plush layer coated on the machine core, and the machine core is provided with a touch sensing integrated circuit (IC). The surface of the machine core is partially or completely coated with a flexible layer, the flexible layer is provided with at least one piece of outer conductive cloth which is electrically connected with the touch sensing IC and serves as a sensing electrode, and the outer conductive cloth can conduct electricity, has the characteristics of cloth and can be pasted and fixed to the non-woven fabric layer through the sewing technology or back glue. The outer conductive fabric is not easy to fall off, loosen and the like, the production cost is low, the operation is easy, and due to the flexibility of the outer conductive fabric, the outer conductive fabric cannot be perceived when the outer side of the plush layer is touched; meanwhile, as the outer conductive cloth is directly attached to the inner side of the plush layer, the distance between the fingers of the user and the outer conductive cloth is short, and the touch sensitivity is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to a plush toy, in particular to a touch sensing structure of an intelligent plush toy with a touch interaction function. Background Art

[0002] Plush products (plush toys) with touch functions refer to products that, when the user touches the toy itself, will respond with corresponding actions according to the program, thereby improving the interactivity and entertainment of the toy itself.

[0003] There is a plastic structure movement inside the plush (i.e. the outermost fur layer of the plush toy), which has a built-in touch sensing IC. A sensing plate for capacitance detection is set on the outside of the movement. The sensing plate is connected to the touch sensing IC, and the capacitance of the sensing plate changes through the capacitance of the user's finger, so that the plush product responds accordingly through the touch sensing IC. The traditional touch detection method is to use a single-sided copper foil as the sensing plate and stick it on the outside of the movement. In order to increase the softness of the hand, shape the shape, and the aesthetic needs after the plush is removed, a layer of PP filling cotton (wrapped with non-woven fabric on the outside) is added to the outermost side. Since the compression of the PP filling cotton is large, it is generally filled The capacitance of the finger is not enough to change the capacitance of the single-sided copper foil sufficiently, resulting in insensitive touch. If the sensitivity of the touch sensing IC is improved through adjustment, the sensitivity may be too high, and the radiation of the circuit itself when working may be enough to affect the capacitance change of the sensing plate to a large enough amount, thereby causing false triggering. Designers always find it difficult to strike a balance between sensitivity and false triggering. At the same time, even if a set of parameters is debugged and a balance is found between sensitivity and false triggering, after long-term use, due to the slight compression of the PP filling cotton and the changes in temperature and humidity in the environment, the product will become insensitive or have more false triggers again.

[0004] Therefore, competitors' products have also made some improvements. They mount the single-sided copper foil on a plastic liner with a certain strength (since the single-sided copper foil is easy to bend and break, the plastic liner plays a protective role), and place the plastic liner between the PP filling cotton and the plush (that is, the positions of the PP filling cotton and the single-sided copper foil are interchanged). At this time, since the distance between the sensing plate and the finger is shortened, the problem of insensitive touch sensing is solved, and the problem of false triggering is also eliminated. However, a new problem is introduced: when you touch it through the plush, you can feel the hard plastic liner, which is no longer soft, and the experience is reduced.

[0005] In addition, there is another solution, which is to use a flexible PCB board instead of copper foil as the sensing electrode, and directly sandwich it between the plush and PP filling cotton (the flexible PCB board is placed between the non-woven fabric and the plush, and the position is fixed by the friction between the flexible PCB and the plush and the non-woven fabric). Since the flexible PCB board is very soft and has a certain toughness, when you touch the outside of the plush, you cannot feel that there is something under the plush, which solves the problems of sensitivity and touch experience. However, the plush of many plush products now needs to be removable and washable. If the plush is disassembled, it will inevitably cause the relative position of the flexible PCB board to change, and the leads of the flexible PCB board and the touch sensing IC will be repeatedly pulled, causing it to be easily damaged. Therefore, this solution cannot solve the problem of removable and washable plush. At the same time, the cost of the flexible PCB electrode is also very high. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a touch sensing structure for an intelligent plush product.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A touch sensing structure for an intelligent plush product comprises a core and a plush layer coated on the core, wherein the core is provided with a touch sensing IC; the surface of the core is partially or completely coated with a flexible layer, wherein the flexible layer is provided with at least one outer conductive cloth electrically connected to the touch sensing IC as a sensing electrode.

[0009] The outer conductive fabric is disposed on the outer side of the flexible layer.

[0010] The flexible layer is composed of a PP cotton layer and a non-woven fabric layer wrapped outside the PP cotton layer, and the outer conductive fabric is arranged on the non-woven fabric layer outside the flexible layer.

[0011] A copper foil electrode is also provided on the inner side of the flexible layer, and the copper foil electrode is electrically connected to the outer conductive cloth.

[0012] The flexible layer is composed of a PP cotton layer and a non-woven fabric layer wrapped outside the PP cotton layer, the outer conductive fabric is arranged on the non-woven fabric layer outside the flexible layer, the copper foil electrode is arranged on the core, and the non-woven fabric layer inside the flexible layer is arranged on the copper foil electrode.

[0013] An inner conductive cloth is also arranged in the flexible layer, and the inner conductive cloth is electrically connected to the outer conductive cloth.

[0014] The flexible layer is composed of a PP cotton layer and a non-woven fabric layer wrapped outside the PP cotton layer, the outer conductive fabric is arranged on the non-woven fabric layer outside the flexible layer, and the inner conductive fabric is arranged on the non-woven fabric layer inside the flexible layer.

[0015] A copper foil electrode is also provided on the inner side of the flexible layer, and the copper foil electrode is electrically connected to the outer conductive cloth and the inner conductive cloth.

[0016] The flexible layer is composed of a PP cotton layer and a non-woven fabric layer wrapped outside the PP cotton layer, the outer conductive fabric is arranged on the non-woven fabric layer outside the flexible layer, the inner conductive fabric is arranged on the non-woven fabric layer inside the flexible layer, the copper foil electrode is arranged on the movement, and the inner conductive fabric is arranged on the copper foil electrode.

[0017] The outer conductive cloth and the inner conductive cloth are formed by cutting and folding a whole piece of material.

[0018] The beneficial effects of the utility model are as follows: the utility model comprises a movement and a plush layer coated on the movement, the movement is provided with a touch sensing IC; the surface of the movement is partially or completely coated with a flexible layer, the flexible layer is provided with at least one outer conductive cloth electrically connected to the touch sensing IC as a sensing electrode, the outer conductive cloth can conduct electricity and has the characteristics of cloth, and can be fixed on the non-woven fabric layer by sewing technology or adhesive bonding, and is not prone to falling off or loosening when the plush layer is disassembled and washed, and has low production cost and is easy to operate, and due to the flexibility of the outer conductive cloth, the existence of the outer conductive cloth cannot be sensed when the outer side of the plush layer is touched; at the same time, due to the direct adhesion to the inner side of the plush layer, the distance between the user's fingers and the outer conductive cloth is close, and the touch sensitivity is also effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 is a schematic diagram of the position structure of Example 1;

[0021] Figure 2 1 is a schematic diagram of the circuit principle of Example 1;

[0022] Figure 3 It is a schematic diagram of the position structure of embodiments 2 and 3;

[0023] Figure 4 It is one of the circuit principle schematic diagrams of embodiments 2 and 3;

[0024] Figure 5 This is the second circuit principle schematic diagram of embodiments 2 and 3;

[0025] Figure 6 is a schematic diagram of the position structure of Example 4;

[0026] Figure 7 This is one of the circuit principle schematic diagrams of Example 4;

[0027] Figure 8This is one of the circuit principle schematic diagrams of Example 4. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0029] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0030] Some embodiments of the present invention are described below in conjunction with the accompanying drawings. Example 1

[0031] Reference Figure 1 , 2 A touch sensing structure for a smart plush product comprises a movement 1 (i.e., the body of the toy) and a plush layer 8 coated on the movement 1, wherein the movement 1 is provided with a touch sensing IC 2; the surface of the movement 1 is partially or completely coated with a flexible layer 4, and the flexible layer 4 is provided with at least one outer conductive cloth 5 electrically connected to the touch sensing IC 2 as a sensing electrode.

[0032] The outer conductive fabric 5 is disposed on the outer side of the flexible layer 4 .

[0033] The flexible layer 4 is composed of a PP cotton layer 9 (PP cotton is also called doll cotton, hollow cotton or filling cotton, which is a man-made chemical fiber product with good elasticity, strong bulkiness, beautiful shape, no fear of extrusion, easy to wash, quick drying and other advantages. PP cotton is harmless to the human body and is widely used in toy filling, clothing, bedding, etc.) and a non-woven fabric layer 3 wrapped outside the PP cotton layer 9. The outer conductive fabric 5 is attached to the non-woven fabric layer 3 outside the flexible layer 4 by sewing technology or adhesive.

[0034] In this embodiment, the sensing electrode is the outer conductive cloth 5 , and the outer conductive cloth 5 is electrically connected to the touch sensing IC 2 through a wire.

[0035] The outer conductive cloth 5 is conductive and has the properties of cloth. It can be fixed on the non-woven fabric layer by sewing or gluing with adhesive. When the plush layer is removed and washed, it is not easy to fall off or loosen. The production cost is low and the operation is easy. In addition, due to the flexibility of the outer conductive cloth, the outer side of the plush layer cannot be felt when touched. At the same time, since it is directly attached to the inner side of the plush layer, the distance between the user's fingers and the outer conductive cloth is close, and the touch sensitivity is also effectively guaranteed. Example 2

[0036] Reference Figure 3-5A copper foil electrode 6 is also provided on the inner side of the flexible layer 4 , and the copper foil electrode 6 is electrically connected to the outer conductive cloth 5 .

[0037] The flexible layer 4 is composed of a PP cotton layer 9 and a non-woven fabric layer 3 wrapped around the PP cotton layer 9, the outer conductive fabric 5 is adhered to the non-woven fabric layer 3 on the outside of the flexible layer 4 by sewing or adhesive, the copper foil electrode 6 is adhered to the movement 1, and the non-woven fabric layer 3 on the inside of the flexible layer 4 is arranged on the copper foil electrode 6.

[0038] In this embodiment, the sensing electrodes are the outer conductive cloth 5 and the copper foil electrode 6. The outer conductive cloth 5 and the copper foil electrode 6 are connected in series through a wire and are electrically connected to the touch sensing IC 2 through a wire. Alternatively, the outer conductive cloth 5 and the copper foil electrode 6 may be electrically connected to the touch sensing IC 2 through a wire respectively. Example 3

[0039] Reference Figure 3-5 An inner conductive cloth 7 is also provided in the flexible layer 4 , and the inner conductive cloth 7 is electrically connected to the outer conductive cloth 5 .

[0040] The flexible layer 4 is composed of a PP cotton layer 9 and a non-woven fabric layer 3 wrapped around the PP cotton layer 9, the outer conductive fabric 5 is adhered to the non-woven fabric layer 3 on the outside of the flexible layer 4 by sewing or adhesive, and the inner conductive fabric 7 is adhered to the non-woven fabric layer 3 on the inside of the flexible layer 4 by sewing or adhesive.

[0041] In this embodiment, the sensing electrodes are the outer conductive cloth 5 and the inner conductive cloth 7. After the outer conductive cloth 5 and the inner conductive cloth 7 are connected in series, they are electrically connected to the touch sensing IC 2 through a wire. Alternatively, the outer conductive cloth 5 and the inner conductive cloth 7 can be electrically connected to the touch sensing IC 2 through wires respectively. Example 4

[0042] Reference Figure 6-8 A copper foil electrode 6 is also provided on the inner side of the flexible layer 4 , and the copper foil electrode 6 is electrically connected to the outer conductive cloth 5 and the inner conductive cloth 7 .

[0043] The flexible layer 4 is composed of a PP cotton layer 9 and a non-woven fabric layer 3 wrapped around the PP cotton layer 9, the outer conductive fabric 5 is adhered to the non-woven fabric layer 3 on the outside of the flexible layer 4 by sewing or adhesive, the inner conductive fabric 7 is adhered to the non-woven fabric layer 3 on the inside of the flexible layer 4 by sewing or adhesive, the copper foil electrode 6 is adhered to the movement 1, and the inner conductive fabric 7 is arranged on the copper foil electrode 6.

[0044] In this embodiment, the sensing electrodes are the outer conductive cloth 5, the inner conductive cloth 7 and the copper foil electrode 6. The outer conductive cloth 5, the inner conductive cloth 7 and the copper foil electrode 6 are connected in series and electrically connected to the touch sensing IC 2 through a wire. Alternatively, the outer conductive cloth 5, the inner conductive cloth 7 and the copper foil electrode 6 are electrically connected to the touch sensing IC 2 through a wire respectively.

[0045] The outer conductive cloth 5 and the inner conductive cloth 7 are formed by cutting and folding a whole piece of material, and are arranged on both sides of the non-woven fabric layer 3 of the flexible layer 4 by folding. In this way, the outer conductive cloth 5 and the inner conductive cloth 7 are themselves in a connected state, and no additional wire is required for electrical connection. In addition, the outer conductive cloth 5 and the inner conductive cloth 7 can also be composed of two independent materials. In this way, the outer conductive cloth 5 and the inner conductive cloth 7 need to be electrically connected by a wire.

[0046] A driving mechanism controlled by a control board is provided in the movement 1. The capacitance of the user's finger approaches the sensing electrode, thereby causing the capacitance of the sensing electrode to change, and then the corresponding signal is sent to the control board through the touch sensing IC2, thereby controlling the driving mechanism to control the toy to perform corresponding actions, such as shaking the head, waving the hands, making sounds, etc.

[0047] In actual use scenarios, different embodiments need to be selected according to the sensitivity requirements. For example, if the required sensitivity is relatively low, the structure of embodiment 1 can be used. If the required sensitivity is improved, the structure of embodiment 2 or 3 can be used. If the required sensitivity is higher, embodiment 4 can be used. In addition, the copper foil electrode 6 and the inner conductive cloth 7 can be replaced by conventional sensing electrode materials.

[0048] Compared with toys with smaller volumes, the area of ​​the outer conductive cloth 5 is smaller due to the limitation of its internal space. In this case, one of the embodiments 2-4 can be used, or more layers of sensing electrodes can be stacked to achieve sensing electrodes with larger equivalent areas, thereby ensuring touch sensitivity.

[0049] The conductive cloth is composed of polyester and conductive fiber. The conductive fiber is a mixed fiber of carbon black and fiber material, that is, carbon black is doped in the fiber material. The carbon black forms a continuous phase structure in the fiber, which gives the fiber conductivity. The warp and weft threads composed of polyester and conductive fibers are woven into conductive cloth, so that the conductive cloth has good conductivity, ensuring the sensitivity and accuracy of signal transmission, and can respond quickly to external changes; it has good flexibility, can better fit surfaces of various shapes, adapt to different application scenarios and equipment structures, and is not easy to damage; it is easy to cut, sew and other processing operations, and is convenient to make into various shapes and sizes; there will be no obvious foreign body feeling, giving users a more comfortable experience.

[0050] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0051] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0052] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A touch sensing structure for a smart plush product, comprising a core (1) and a plush layer (8) coated on the core (1), characterized in that The movement (1) is provided with a touch sensing IC (2); the surface of the movement (1) is partially or completely covered with a flexible layer (4), and the flexible layer (4) is provided with at least one piece of external conductive cloth (5) electrically connected to the touch sensing IC (2) as a sensing electrode.

2. The touch sensing structure for smart plush products according to claim 1, characterized in that The outer conductive fabric (5) is arranged on the outer side of the flexible layer (4).

3. The touch sensing structure for smart plush products according to claim 2, characterized in that The flexible layer (4) is composed of a PP cotton layer (9) and a non-woven fabric layer (3) wrapped around the PP cotton layer (9), and the outer conductive fabric (5) is arranged on the non-woven fabric layer (3) outside the flexible layer (4).

4. The touch sensing structure for smart plush products according to claim 2, characterized in that A copper foil electrode (6) is also provided on the inner side of the flexible layer (4), and the copper foil electrode (6) is electrically connected to the outer conductive cloth (5).

5. The touch sensing structure for smart plush products according to claim 4, characterized in that The flexible layer (4) is composed of a PP cotton layer (9) and a non-woven fabric layer (3) coated outside the PP cotton layer (9); the outer conductive fabric (5) is arranged on the non-woven fabric layer (3) outside the flexible layer (4); the copper foil electrode (6) is arranged on the core (1); and the non-woven fabric layer (3) inside the flexible layer (4) is arranged on the copper foil electrode (6).

6. The touch sensing structure for smart plush products according to claim 2, characterized in that An inner conductive cloth (7) is also provided in the flexible layer (4), and the inner conductive cloth (7) is electrically connected to the outer conductive cloth (5).

7. The touch sensing structure for smart plush products according to claim 6, characterized in that The flexible layer (4) is composed of a PP cotton layer (9) and a non-woven fabric layer (3) wrapped around the PP cotton layer (9); the outer conductive fabric (5) is arranged on the non-woven fabric layer (3) outside the flexible layer (4); and the inner conductive fabric (7) is arranged on the non-woven fabric layer (3) inside the flexible layer (4).

8. The touch sensing structure for smart plush products according to claim 6, characterized in that A copper foil electrode (6) is also provided on the inner side of the flexible layer (4), and the copper foil electrode (6) is electrically connected to the outer conductive cloth (5) and the inner conductive cloth (7).

9. The touch sensing structure for smart plush products according to claim 8, characterized in that The flexible layer (4) is composed of a PP cotton layer (9) and a non-woven fabric layer (3) wrapped around the PP cotton layer (9); the outer conductive fabric (5) is arranged on the non-woven fabric layer (3) outside the flexible layer (4); the inner conductive fabric (7) is arranged on the non-woven fabric layer (3) inside the flexible layer (4); the copper foil electrode (6) is arranged on the movement (1); and the inner conductive fabric (7) is arranged on the copper foil electrode (6).

10. The touch sensing structure for smart plush products according to claim 6 or 8, characterized in that The outer conductive cloth (5) and the inner conductive cloth (7) are formed by cutting and folding a whole piece of material.

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