CN206577028U - A kind of nappy urinates wet detection inductor - Google Patents

Abstract

The utility model discloses a urine wetness detection sensor for paper diapers, which comprises a first wire mesh layer arranged on the first surface of the non-woven fabric of the paper diaper, and a second metal mesh layer arranged on the second surface of the non-woven fabric of the paper diaper. Wire mesh layer; wherein, the first wire mesh layer and the second wire mesh layer are formed by sticking fine, messy sections of conductive wire on the surface of the non-woven fabric respectively, and the first The wire mesh layer and the second wire mesh layer are respectively used as the first electrode and the second electrode of the urine wetness detection sensor of the paper diaper; and, the first electrode and the second electrode are respectively connected to an external monitoring circuit . The utility model has good comfort performance, does not affect the water absorption of the paper diaper, and has low cost.

Description

A paper diaper urine wetness detection sensor

technical field

The utility model relates to the field of electronics, in particular to a urine wetness detection sensor for paper diapers.

Background technique

Young children, the elderly, and patients who cannot get care due to prolonged urination will cause physical discomfort and related diseases.

Using the conductive properties of urine, electrodes are inserted into the diaper to monitor whether the diaper is wet. At present, the commonly used method is to use PCB (printed circuit board) to print two electrodes. The PCB is installed in the diaper, and the wetness of the urine is detected by measuring the resistance between the electrodes.

The main problems with current technology:

1. The PCB board is a hard piece, which is uncomfortable to wear when placed in a diaper;

2. The PCB board is a hard piece, which is unstable when installed in a diaper. The PCB board deviates from the monitoring position, and the monitoring is unreliable.

3. Affect the water absorption performance of diapers.

Therefore, there are defects in the prior art and need to be improved.

Utility model content

The technical problem to be solved by the utility model is to provide a urine wetness detection sensor for paper diapers which has good comfort performance, does not affect the water absorption of the paper diapers, and is low in cost.

The technical scheme of the utility model is as follows: a urine wetness detection sensor for a paper diaper, comprising a first wire mesh layer arranged on the first surface of the non-woven fabric of the paper diaper, and a second surface of the non-woven fabric of the paper diaper The second wire mesh layer; wherein, the first wire mesh layer and the second wire mesh layer are formed by sticking fine, soft and messy sections of conductive metal wires on the surface of the non-woven fabric respectively, and the The first wire mesh layer and the second wire mesh layer are respectively used as the first electrode and the second electrode of the urine wetness detection sensor of the diaper; and, the first electrode and the second electrode are respectively connected with the external Monitor circuit connections.

Applied to the above technical solution, in the urine wetness detection sensor for diapers, a protective film layer is also provided on the surfaces of the first wire mesh layer and the second wire mesh layer.

Using the above scheme, the utility model utilizes non-woven fabric sticky metal wire as a detection electrode to detect urine leakage, and its beneficial effects are:

1. The composite non-woven fabric is soft and does not affect the wearing comfort of diapers;

2. It can be directly pasted on the inner layer of the diaper, and the structure is firm;

3. Hydrophilic composite non-woven fabric does not affect the water absorption performance of diapers;

4. The composite non-woven fabric has good ductility, can be stretched and folded with the diaper, and the detection is reliable;

5. Low cost and can be used once;

6. The material is environmentally friendly.

Description of drawings

Fig. 1 is a structural sectional view of the utility model;

Fig. 2 is the structural representation of wire mesh layer of the present utility model;

Fig. 3 is a working principle block diagram of the utility model.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.

This embodiment provides a urine wetness detection sensor for a paper diaper. As shown in FIGS. The wire mesh layer 1, and the second wire mesh layer 3 provided with the second surface of the paper diaper nonwoven fabric 2; wherein, the first wire mesh layer 1 and the second wire mesh layer 3 pass through the surface of the nonwoven fabric respectively It is formed by sticking soft and messy sections of conductive wire, and the first wire mesh layer and the second wire mesh layer are respectively used as the first wetness detection sensor of the diaper. electrode and the second electrode.

In this way, on both sides of the hydrophilic and insulating non-woven fabric, sticky, soft and messy sections of conductive metal wires form a sandwich-style composite non-woven fabric. The surface of this composite non-woven fabric is a conductive mesh wire mesh, which is used as two detection electrodes of the urine wetness detection sensor of the diaper, and is embedded in the inner layer of the diaper. In the case of a dry diaper, the resistance between the two electrodes is high; after the diaper is wet, the resistance is low. Wetness can be detected by measuring the resistance between the electrodes.

Moreover, the first electrode and the second electrode are respectively connected to an external monitoring circuit. As shown in FIG. The electric signal indicates the wetness status of the diaper, and realizes the detection and display of the wetness.

The wetness of diapers can be displayed by lights or sounds, and the wetness of diapers can be monitored remotely through radio transmission devices, and connected to the background server for data processing and analysis to provide intelligent services.

Or, in order to strengthen the fastness of the surface sticking metal wire, a layer of permeable protective film can be covered to form a five-layer composite structure, and a protective film is respectively arranged on the surface of the first wire mesh layer and the second wire mesh layer. Layers, that is, a protective film layer is arranged on the first first wire mesh layer, and another protective film layer is arranged on the surface of the second wire mesh layer. Among them, if a regular wire mesh is used on the surface, the structure has poor ductility and the wire mesh is easy to tear; and the use of metal wires interspersed or stitched on the cloth as a monitoring electrode has a good effect.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (2)

1. A paper diaper urine wetness detection sensor, characterized in that: It includes a first wire mesh layer arranged on the first surface of the non-woven diaper fabric, and a second wire mesh layer arranged on the second surface of the non-woven diaper fabric; Wherein, the first wire mesh layer and the second wire mesh layer are respectively formed by sticking thin, soft and messy conductive wires on the surface of the non-woven fabric, and the first wire mesh layer and the The second wire mesh layer is respectively used as the first electrode and the second electrode of the urine wetness detection sensor of the diaper; In addition, the first electrode and the second electrode are respectively connected to an external monitoring circuit. 2. The urine wetness detection sensor for paper diapers according to claim 1, characterized in that a protective film layer is provided on the surface of the first wire mesh layer and the second wire mesh layer respectively.