Waterproof fingerprint module

Abstract

The utility model discloses a waterproof fingerprint module comprising a fixed frame structure, a module structure, a connecting backboard structure and a cover body structure, the internal surface of the fixed frame structure is fixedly sleeved with the module structure, the surface of the fixed frame structure is fixedly sleeved with the connecting backboard structure, and the surface of the fixed frame structure is fixedly butted with the cover body structure. According to the waterproof fingerprint module provided by the utility model, the fixed frame structure is arranged to facilitate the installation of the module structure, the first sealing ring is arranged to be in butt joint with the embedded groove to form a first layer of sealing, and the connecting back plate structure is arranged to be in butt joint with the fixed frame structure to form a second layer of sealing; the surface of the fixing frame structure is closed through the cover body structure, then the second sealing ring on the inner side is in butt joint and fixed with the sealing groove, and the surface of the bottom end is fixedly attached to the fixing plate through the second sealing glue, so that multiple protection is formed, and dust and water vapor are effectively prevented from entering.

Description

Technical Field

[0001] The utility model relates to the field of fingerprint devices, and particularly relates to a waterproof fingerprint module. Background Art

[0002] Semiconductor fingerprint modules are divided into capacitive and inductive types. Their working principle is that on a sensor board integrated with thousands of semiconductor devices, when a finger is placed on it, it forms the other side of the capacitor. Since the finger surface is uneven, the actual distances of the convex and concave points in contact with the flat plate are different, and the formed capacitance / inductance values are also different. The device summarizes the different values collected according to this principle to complete fingerprint acquisition. Due to the fitting gap between the existing module and the mobile phone housing, water vapor / dust and other substances will enter the mobile phone through this gap, resulting in unreliable waterproof and dustproof effects for the mobile phone. Therefore, a waterproof fingerprint module is proposed. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a waterproof fingerprint module, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A waterproof fingerprint module includes a fixed frame structure, a module structure, a connection backplane structure and a cover body structure. The module structure is fixedly sleeved on the inner surface of the fixed frame structure, the connection backplane structure is fixedly sleeved on the surface of the fixed frame structure, and the cover body structure is fixedly butted on the surface of the fixed frame structure.

[0006] The fixed frame structure includes a fixed base, an installation groove, an annular groove, a first sealing ring and a sealing groove. The installation groove is fixedly arranged on the inner surface of the fixed base, the annular groove is fixedly formed on the surface of the fixed base, the first sealing ring is fixedly arranged on the inner surface of the fixed base, and the sealing groove is fixedly formed on the surface of the fixed base.

[0007] The module structure includes a cover plate, a fingerprint chip, a circuit board, a metal protection layer, an FPC flexible cable and an embedding groove. The fingerprint chip is fixedly connected to the bottom surface of the cover plate, the circuit board is fixedly connected to the bottom surface of the fingerprint chip, the metal protection layer is fixedly arranged on the bottom surface of the circuit board, the FPC flexible cable is fixedly connected to the bottom surface of the circuit board, and the embedding groove is fixedly formed on the surface of the cover plate.

[0008] The connection backplane structure includes a fixing plate, an ink layer, holes, a sealing ring, a silica gel ring, and a first sealing glue. The ink layer is fixedly arranged on the bottom surface of the fixing plate. The holes are fixedly formed on the surface of the fixing plate. The sealing ring is fixedly connected to the surface of the holes. The first sealing glue is fixedly arranged on the bottom surface of the fixing plate. The silica gel ring is fixedly attached to the surface of the first sealing glue.

[0009] The cover body structure includes a sealing cover, a second sealing ring, a second sealing glue, and a pressing window. The second sealing ring is fixedly arranged on the inner surface of the sealing cover. The second sealing glue is fixedly arranged on the bottom surface of the sealing cover. The pressing window is fixedly formed on the surface of the sealing cover.

[0010] The module structure is butt-jointed and fixed with the installation groove. The embedding groove is butt-jointed and fixed with the first sealing ring. The fixing base is fixedly sleeved with the holes. The sealing ring is butt-jointed and fixed with the annular groove. The sealing cover is butt-jointed and sleeved with the fixing base. The second sealing ring is butt-jointed and fixed with the sealing groove. The second sealing glue is fixedly attached to the surface of the fixing plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, a waterproof fingerprint module is provided. By setting the fixing frame structure, it is convenient to install the module structure. And by setting the first sealing ring to be butt-jointed with the embedding groove, a first layer of sealing is formed. By setting the connection backplane structure to be butt-jointed with the fixing frame structure, the sealing ring is butt-jointed with the annular groove to form a layer of sealing on the outer layer. The cover body structure closes the surface of the fixing frame structure. Then, the second sealing ring on the inner side is butt-jointed and fixed with the sealing groove, and the bottom surface is fixedly attached to the fixing plate through the second sealing glue, forming multiple protections, effectively preventing the entry of dust and water vapor. And the inside is integrally sealed with the silica gel ring and the first sealing glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of a waterproof fingerprint module of the utility model;

[0014] Figure 2 It is a schematic diagram of the fixing frame structure of a waterproof fingerprint module of the utility model;

[0015] Figure 3 It is a schematic diagram of the module structure of a waterproof fingerprint module of the utility model;

[0016] Figure 4 It is a schematic diagram of the connection backplane structure of a waterproof fingerprint module of the utility model;

[0017] Figure 5 It is a schematic diagram of the cover body structure of a waterproof fingerprint module of the utility model;

[0018] In the figure: 1. Fixed frame structure; 101. Fixed base; 102. Installation groove; 103. Annular groove; 104. First sealing ring; 105. Sealing groove; 2. Module structure; 201. Cover plate; 202. Fingerprint chip; 203. Circuit board; 204. Metal protective layer; 205. FPC flexible cable; 206. Embedding groove; 3. Connecting backplane structure; 301. Fixed plate; 302. Ink layer; 303. Hole; 304. Sealing ring; 305. Silicone rubber ring; 306. First sealing glue; 4. Cover body structure; 401. Sealing cover; 402. Second sealing ring; 403. Second sealing glue; 404. Pressing window. Detailed implementation manners

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation manners.

[0020] As Figures 1-5 shown, a waterproof fingerprint module includes a fixed frame structure 1, a module structure 2, a connecting backplane structure 3 and a cover body structure 4. The module structure 2 is fixedly sleeved on the inner surface of the fixed frame structure 1, the connecting backplane structure 3 is fixedly sleeved on the surface of the fixed frame structure 1, and the cover body structure 4 is fixedly butted on the surface of the fixed frame structure 1;

[0021] The fixed frame structure 1 includes a fixed base 101, a mounting groove 102, an annular groove 103, a sealing ring 104 and a sealing groove 105. The inner surface of the fixed base 101 is fixedly provided with a mounting groove 102, the surface of the fixed base 101 is fixedly provided with an annular groove 103, the inner surface of the fixed base 101 is fixedly provided with a sealing ring 104, and the surface of the fixed base 101 is fixedly provided with a sealing groove 105; the module structure 2 includes a cover plate 201, a fingerprint chip 202, a circuit board 203, a metal protective layer 204, an FPC The bottom surface of the cover plate 201 is fixedly connected with the fingerprint chip 202, the bottom surface of the fingerprint chip 202 is fixedly connected with the circuit board 203, the bottom surface of the circuit board 203 is fixedly provided with a metal protective layer 204, the bottom surface of the circuit board 203 is fixedly connected with the FPC soft flat cable 205, and the surface of the cover plate 201 is fixedly provided with an embedding groove 206; the connecting back plate structure 3 includes a fixing plate 301, an ink layer 302, a hole 303, a sealing ring 304, a silicone ring 305 and a sealing glue The bottom surface of the fixed plate 301 is fixedly provided with an ink layer 302, the surface of the fixed plate 301 is fixedly provided with a hole 303, the surface of the hole 303 is fixedly connected with a sealing ring 304, the bottom surface of the fixed plate 301 is fixedly provided with a sealing glue 1 306, and the surface of the sealing glue 1 306 is fixedly attached with a silicone ring 305; the cover structure 4 includes a sealing cover 401, a sealing ring 2 402, a sealing glue 2 403 and a pressing window 404, the inner surface of the sealing cover 401 is fixedly provided with a sealing ring 2 402, The bottom surface of the sealing cover 401 is fixedly provided with sealing glue 2 403, and the surface of the sealing cover 401 is fixedly provided with a pressing window 404; the module structure 2 is docked and fixed to the installation groove 102, the embedded groove 206 is docked and fixed to the sealing ring 104, the fixed base 101 is fixedly sleeved with the hole 303, the sealing ring 304 is docked and fixed to the annular groove 103, the sealing cover 401 is docked and sleeved with the fixed base 101, the sealing ring 2 402 is docked and fixed to the sealing groove 105, and the sealing glue 2 403 is fit and fixed to the surface of the fixed plate 301.

[0022] It should be noted that the utility model is a waterproof fingerprint module, which can facilitate the installation of the module structure 2 through the fixed frame structure 1 and form a first layer of sealing by setting a sealing ring 104 and docking it with the embedding groove 206, connecting the back plate structure 3 and the fixed frame structure 1 to dock it, so that the sealing ring 304 is docked with the annular groove 103 to form a layer of sealing on the outer layer, and the surface of the fixed frame structure 1 is closed by the cover structure 4, and then the inner sealing ring 402 is docked and fixed with the sealing groove 304, and the surface of the bottom end is fixed and fitted with the fixed plate 301 by the sealing glue 403, so that it forms multiple protections and effectively prevents the entry of dust and water vapor, and the interior is sealed as a whole with a silicone ring 305 and a sealing glue 306.

[0023] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof fingerprint module, characterized in that: It includes a fixed frame structure (1), a module structure (2), a connection backplane structure (3) and a cover body structure (4). The module structure (2) is fixedly sleeved on the inner surface of the fixed frame structure (1), the connection backplane structure (3) is fixedly sleeved on the surface of the fixed frame structure (1), and the cover body structure (4) is fixedly butted on the surface of the fixed frame structure (1).

2. The waterproof fingerprint module according to claim 1, wherein: The fixed frame structure (1) includes a fixed base (101), a mounting groove (102), an annular groove (103), a first sealing ring (104) and a sealing groove (105). The mounting groove (102) is fixedly arranged on the inner surface of the fixed base (101), the annular groove (103) is fixedly formed on the surface of the fixed base (101), the first sealing ring (104) is fixedly arranged on the inner surface of the fixed base (101), and the sealing groove (105) is fixedly formed on the surface of the fixed base (101).

3. The waterproof fingerprint module according to claim 2, wherein: The module structure (2) includes a cover plate (201), a fingerprint chip (202), a circuit board (203), a metal protection layer (204), an FPC flexible cable (205) and an embedding groove (206). The fingerprint chip (202) is fixedly connected to the bottom surface of the cover plate (201), the circuit board (203) is fixedly connected to the bottom surface of the fingerprint chip (202), the metal protection layer (204) is fixedly arranged on the bottom surface of the circuit board (203), the FPC flexible cable (205) is fixedly connected to the bottom surface of the circuit board (203), and the embedding groove (206) is fixedly formed on the surface of the cover plate (201).

4. The waterproof fingerprint module according to claim 3, wherein: The connection backplane structure (3) includes a fixing plate (301), an ink layer (302), holes (303), a sealing ring (304), a silica gel ring (305) and a first sealing glue (306). The ink layer (302) is fixedly arranged on the bottom surface of the fixing plate (301), the holes (303) are fixedly formed on the surface of the fixing plate (301), the sealing ring (304) is fixedly connected to the surface of the holes (303), the first sealing glue (306) is fixedly arranged on the bottom surface of the fixing plate (301), and the silica gel ring (305) is fixedly attached to the surface of the first sealing glue (306).

5. The waterproof fingerprint module according to claim 4, wherein: The cover body structure (4) includes a sealing cover (401), a second sealing ring (402), a second sealing glue (403) and a pressing window (404). The second sealing ring (402) is fixedly arranged on the inner surface of the sealing cover (401), the second sealing glue (403) is fixedly arranged on the bottom surface of the sealing cover (401), and the pressing window (404) is fixedly formed on the surface of the sealing cover (401).

6. The waterproof fingerprint module according to claim 5, wherein: The module structure (2) is butt-jointed and fixed with the installation groove (102), the embedding groove (206) is butt-jointed and fixed with the first sealing ring (104), the fixed base (101) is fixedly sleeved with the hole (303), the sealing ring (304) is butt-jointed and fixed with the annular groove (103), the sealing cover (401) is butt-jointed and sleeved with the fixed base (101), the second sealing ring (402) is butt-jointed and fixed with the sealing groove (105), and the second sealing glue (403) is fixedly attached to the surface of the fixing plate (301).

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