CN201242757Y - fingerprint identification device - Google Patents

Abstract

The utility model discloses a fingerprint identification device contains printed circuit board, machine component, sensor, and upper cover. A machine member is disposed on a printed circuit board, a sensor is disposed on the machine member, and then an upper cover is disposed on the uppermost layer. The fingerprint identification device may further include a connector for connecting an external electronic product. The connector is connected with an interface of an external electronic product so as to transmit the fingerprint image sensed by the sensor to the electronic product. The direct connection of the upper cover and the sensor ensures that the whole structure is stable and is not easy to loosen, slide or shift, thus improving the imaging quality, reducing the probability of wrong imaging and reducing the probability of wrong identification. Furthermore, the module can be used as an independent module which can be widely applied to various electronic products.

Description

fingerprint identification device

technical field

The utility model relates to a fingerprint identification device, in particular to a fingerprint identification device which has a stable structure and can be easily combined with various electronic products.

Background technique

In recent years, due to the increasing demand for confidentiality of personal information and the diversification of methods for criminals to steal information, for daily electronic products, such as personal computers (PCs), personal digital assistants (PDAs) ), or a portable hard disk, etc., must develop a technology that can still prevent the personal secret information recorded therein from being leaked even if the electronic product falls into the hands of others.

Previously, most of the passwords used for protection were composed of English letters, Arabic numerals or their combinations entered by the user. If the security of protection is to be improved, the length of the password must be increased. But on the other hand, the problem that arises is that as the length of the password becomes longer and longer, the user is likely to forget the password, which is very inconvenient when accessing data is urgently needed. If the user has multiple different passwords, how to remember the different passwords correctly will become a big problem. In view of the above problems, the emerging protection technology is biometric technology. Scientists have found that even for the same species of organisms, different individuals still have different biological characteristics that can be significantly distinguished, and the biological characteristics are difficult to be copied and stolen by others. Therefore, the technology of using biological characteristics as a distinguishing identity has gradually become the mainstream of information protection technology . It is known that everyone's fingerprints, voiceprints, irises, etc. are different. Therefore, the utility model aims at using fingerprints as the password for opening files, electronic products or accessing data, and provides a stable structure, easy installation, And the fingerprint identification device with excellent imaging quality. In this way, not only do you not have to worry about forgetting your password, but you can also highly protect your data, greatly reducing the chance of data leakage.

If you want to use fingerprints as authentication and identification, it is obvious that the imaging quality and accuracy of fingerprint images are important factors that determine whether fingerprints can be accurately identified. A general fingerprint identification device must determine the type of slideway for placing fingers according to the type of sensor, so the combination of slideway (or "top cover") and sensor is very important, which will determine the sensing accuracy for identity authentication and image quality.

Previously known fingerprint identification devices are combined in the following two ways: the first is that the fingerprint identification device is combined with external electronic products. The problem of this combination is: because the type of upper cover will correspond to the type of sensor Different, the product manufacturer must pre-set the type of upper cover used by the product as a system component, and this fingerprint recognition device cannot be widely used in various products; another combination method is to fix the sensor on the printed circuit board. The problem with the method is: From a microscopic point of view, the upper cover and the sensor are still separated, and there are still concerns about structural instability.

Utility model content

The purpose of this utility model is to provide a fingerprint recognition device, which can improve the defect that the sensor of the previous fingerprint recognition device cannot be directly combined with the upper cover, improve the problem of structural sliding, loosening or displacement, and further provide Identify fingerprint images with good imaging quality.

A fingerprint identification device provided according to an embodiment of the present invention includes a printed circuit board, mechanical components, a sensor, and an upper cover. The mechanism component is arranged on the printed circuit board; the sensor is arranged on the mechanism component; the upper cover is arranged on the sensor, and the sensor and the upper cover are firmly and fixedly connected together.

The fingerprint identification device may further include a connector for connecting to an interface of an external electronic product. In the embodiment of the present invention, the difference from the prior art is that the upper cover and the sensor are directly connected together, so that they are combined into a stable module, so the identification and imaging quality of the fingerprint image is good. Moreover, in the prior art, the upper cover is a system component, and the user has to consider the design of the upper cover corresponding to different sensors. And different from the prior art, according to the embodiment of the fingerprint identification device of the present invention, the upper cover and other components form a single module, and the user does not need to consider how to place the fingerprint identification device and the design of the upper cover, making the utility model The new type can be widely used in different products.

The beneficial effect of the utility model is that the fingerprint identification device can solve the shortcomings of the existing fingerprint identification device that the sensor cannot be directly combined with the upper cover, causing the structure to slide, loose or shift, and thus can further provide identification and imaging with good quality. fingerprint image; in addition, the fingerprint identification device can solve the problem in the prior art that the type of upper cover corresponds to the type of sensor, and the product manufacturer must pre-set the type of upper cover used by the product, resulting in The previous fingerprint identification device must be used as a system component and cannot be widely used in various electronic products; therefore, the fingerprint identification device of the present invention can be easily combined with various electronic products to broaden the industrial applicability.

Description of drawings

Fig. 1 is a perspective view of an embodiment of the fingerprint identification device described in the present invention; and

FIG. 2 is a perspective view of another embodiment of the fingerprint identification device according to the present invention.

Symbol description of main components

100: Fingerprint identification device

110: printed circuit board

120: Mechanism components

130: sensor

140: top cover

141: upper surface

150: connector

Detailed ways

Referring to the perspective view of FIG. 1 , the fingerprint recognition device 100 includes a printed circuit board 110 , a mechanical component 120 , a sensor 130 , and an upper cover 140 . The mechanical component 120 is disposed on the printed circuit board 110 , the sensor 130 is disposed on the mechanical component 120 , and the upper cover 140 is disposed on the uppermost layer. The connection mode between the upper cover 140 and the sensor 130 can be directly and firmly connected together, or indirectly connected together through the printed circuit board 110 and the mechanical component 120 . Ways of direct connection include but are not limited to screws, heat fusion or mechanical bonding.

When the user intends to use the fingerprint image as identification authentication to open files, electronic products or access data, the user puts his finger on the upper cover 140, the upper cover 140 has an inclined upper surface 141, and the user moves along the Sliding the finger along the inclined upper surface 141 enables the sensor 130 and the printed circuit board 110 below to capture the fingerprint image.

Referring to the perspective view of FIG. 2 , elements having the same numbers as those shown in FIG. 1 are the same as those shown in FIG. 1 , so the same description will not be repeated.

The difference between FIG. 2 and FIG. 1 is that the embodiment in FIG. 2 further includes a connector 150 connected to an external electronic device. In the above operation as shown in FIG. 1 , after the sensor 130 senses the fingerprint image, the connector 150 transmits the fingerprint image to the interface of the external electronic device as a basis for identification and authentication.

In addition, the fingerprint recognition device is any kind of linear fingerprint recognition device.

According to the embodiment of the present invention, the structure between the upper cover 140 and the sensor 130 is stable, and it is not easy to slide and shift when the user slides the finger, that is, not only the imaging quality can be improved, but also imaging errors or identification errors are not easy to occur question.

Those who are familiar with the technology should know that various changes can still be implemented to the present invention without departing from the protection scope of the claims, and the changed embodiments should still be considered as falling within the patent protection scope of the utility model.

Claims (6)

1. A fingerprint identification device, characterized in that it comprises: a printed circuit board; a mechanical component arranged on the printed circuit board; a sensor disposed on the mechanism member; and An upper cover is arranged on the sensor, and the sensor is firmly and fixedly connected with the upper cover. 2. The fingerprint identification device according to claim 1, further comprising: A connector is connected with an interface of an external electronic product. 3 . The fingerprint identification device according to claim 1 , wherein the upper cover is connected directly or indirectly to the sensor. 4 . 4. The fingerprint identification device according to claim 2, wherein the upper cover is connected directly or indirectly to the sensor. 5. The fingerprint identification device according to any one of claims 1 to 4, wherein the fingerprint identification device is a linear fingerprint identification device. 6. The fingerprint identification device according to any one of claims 3 to 4, wherein the direct connection or indirect connection comprises hot-melt connection, screw connection, and mechanical connection.

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