Electronic lock shell sealing structure and electronic lock

Abstract

The utility model discloses an electronic lock shell sealing structure and an electronic lock. The electronic lock shell sealing structure comprises a supporting frame, a waterproof pad, an isolation plate and a pressing plate. The supporting frame is provided with an open hole part which penetrates through the supporting frame in one direction. The waterproof pad is located on the inner side of the supporting frame in the direction and provided with a connecting hole. The isolation plate is located on the outer side of the supporting frame in the direction. And the isolation plate is contacted with the waterproof pad through the opening part so as to jointly form an electronic device accommodating space. The pressing plate is located on the inner side of the supporting frame in the direction, and the waterproof pad is located between the isolation plate and the pressing plate. The pressing plate and the isolation plate are connected with each other through the connecting hole so that the waterproof pad can tightly abut against the isolation plate. The utility model further discloses an electronic lock which comprises the electronic lock shell sealing structure and a printed circuit board contained in the electronic device containing space.

Description

Technical Field

[0001] This utility model relates to an electronic lock housing sealing structure and an electronic lock with waterproof effect. Background Technology

[0002] Sometimes electronic locks are installed on doors that are exposed to the outside. If the electronic lock is not waterproof, rainwater or moisture can easily enter the lock, causing problems such as short circuits in electronic components and corrosion of wiring. Although some electronic locks have waterproof gaskets, the installation process often causes these gaskets to warp, reducing their waterproof function or even rendering them ineffective. Utility Model Content

[0003] In view of the problems in the prior art, the purpose of this utility model is to provide an electronic lock housing sealing structure and an electronic lock with waterproof effect, wherein the waterproof gasket is firmly fixed in the structure before being installed on the door panel, and the waterproof function of the waterproof gasket will not be affected by the installation.

[0004] This utility model provides a sealing structure for an electronic lock housing, comprising a support frame, a waterproof gasket, an isolation plate, and a pressure plate. The support frame has an opening extending through it in one direction. The waterproof gasket is located inside the support frame in this direction and has a connecting hole. The isolation plate is located outside the support frame in this direction. The isolation plate contacts the waterproof gasket through the opening to form an electronic device housing space together with the waterproof gasket. The pressure plate is located inside the support frame in this direction, and the waterproof gasket is located between the isolation plate and the pressure plate. The pressure plate and the isolation plate are connected to each other through the connecting hole, so that the waterproof gasket is tightly abutted against the isolation plate. Thus, the waterproof gasket is securely clamped between the isolation plate and the pressure plate, so subsequent installation will not change the connection relationship between the waterproof gasket and the isolation plate and affect the waterproof effect on the electronic device housing space.

[0005] The partition plate and the waterproof pad each include a protruding wall, and the other part of the partition plate and the waterproof pad includes a groove. The protruding wall is inserted into the groove and surrounds the electronic device accommodating space.

[0006] The waterproof pad has a receiving groove, and the pressure plate is received in the receiving groove, the outline of the receiving groove matching the outline of the pressure plate.

[0007] The support frame has a perimeter wall and a door panel fixing hole. The door panel fixing hole is located inside the perimeter wall, and the waterproof pad abuts against the edge of the perimeter wall in that direction.

[0008] It also includes a flexible pad, wherein the isolation plate has an operation hole that connects to the electronic device accommodating space, and the flexible pad is attached to the isolation plate and covers the operation hole.

[0009] The support frame has a second opening, the partition plate has a receiving perforation, the waterproof pad includes a groove structure that forms a receiving area, and the partition plate and the groove structure are interconnected via the second opening so that the receiving perforation communicates with the receiving area.

[0010] The accommodating perforation has a first part and a second part connected in the direction, the cross-section of the second part is larger than the cross-section of the first part, the partition plate is connected to the groove structure via the second part, the groove structure has a protruding wall structure, the protruding wall structure extends along the direction and is inserted into the second part.

[0011] The pressure plate includes a protruding rib that abuts against the waterproof pad and overlaps with the edge of the second opening in that direction.

[0012] This utility model also provides an electronic lock, which includes the aforementioned electronic lock housing sealing structure and a printed circuit board. The printed circuit board is disposed within the electronic device accommodating space of the electronic lock housing sealing structure. Similarly, the waterproof gasket is securely sandwiched between the isolation plate and the pressure plate, so the subsequent installation of the electronic lock will not change the connection relationship between the waterproof gasket and the isolation plate and thus will not affect the waterproof effect on the electronic device accommodating space. Therefore, it can be ensured that the printed circuit board can achieve the expected waterproof effect.

[0013] The printed circuit board has a switch, the electronic lock housing sealing structure includes a flexible pad, the isolation plate has an operation hole that connects to the electronic device accommodating space and aligns with the switch, the flexible pad is attached to the isolation plate and covers the operation hole, and the flexible pad can be pressed to trigger the switch.

[0014] It also includes a fingerprint recognition component, wherein the support frame has a second opening portion, the isolation plate has a receiving perforation, the waterproof pad includes a groove structure, the groove structure forms a receiving area, the isolation plate and the groove structure are interconnected through the second opening portion so that the receiving perforation communicates with the receiving area, and the fingerprint recognition component is housed in the receiving perforation and the receiving area.

[0015] The accommodating perforation has a first part and a second part connected in the direction. The cross-section of the second part is larger than that of the first part. The partition plate is connected to the groove structure via the second part. The groove structure has a protruding wall structure that extends along the direction and is inserted into the second part. The protruding wall structure has a positioning notch into which the fingerprint recognition component is inserted.

[0016] The pressure plate includes a protruding rib that abuts against the waterproof pad and overlaps with the edge of the second opening in that direction.

[0017] The waterproof pad and the isolation plate clamp the printed circuit board.

[0018] It also includes a lock cylinder, which is fixed to the support frame.

[0019] The advantages and spirit of this utility model can be further understood through the following detailed description of the utility model and the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an electronic lock according to one embodiment.

[0021] Figure 2 for Figure 1 A schematic diagram of the electronic lock from another perspective.

[0022] Figure 3 for Figure 1 Exploded view of the electronic lock.

[0023] Figure 4 for Figure 3 An exploded view of the electronic lock from another perspective.

[0024] Figure 5 for Figure 1 A cross-sectional view of the electronic lock along line XX.

[0025] Figure 6 for Figure 2 A cross-sectional view of the electronic lock along line YY.

[0026] Figure 7 for Figure 3 A partial schematic diagram of the combination of the isolation plate and waterproof pad of the electronic lock.

[0027] Figure 8 This is a front view of the rear side of the isolation panel.

[0028] Explanation of reference numerals in the attached drawings: 1-Electronic lock; 12-Support frame; 12a-Inner side; 12b-Outer side; 122-First opening portion; 124-Second opening portion; 126-Peripheral wall; 128-Door panel fixing hole; 14-Waterproof pad; 142-Connecting hole; 144-Groove; 145-Notch; 146-Opening; 148-Slot structure; 148a-Accommodation area; 1482-Protruding wall structure; 1482a-Positioning notch; 1484-Opening; 150-Accommodation groove; 16-Membrane keypad assembly; 162-Isolation plate; 162 2-Operating hole; 1624-Protrusion; 1624a-Notch; 1626-Accommodation perforation; 1626a-First part; 1626b-Second part; 164-Flexible pad; 1642-Bump; 166-Membrane; 17-Electronic component accommodating space; 18-Pressure plate; 182a, 182b, 182c-Ribs; 20-Switch circuit board assembly; 202-Printed circuit board; 204-Switch; 22-Fingerprint recognition component; 24-Lock cylinder; 26, 28-Cables; 30-Auxiliary base plate; 32-Fixing bracket; D1-Direction. Detailed Implementation

[0029] Please see Figures 1 to 4 An electronic lock 1 according to one embodiment can be installed on the outside of a door panel, and includes a support frame 12, a waterproof pad 14, a membrane keypad assembly 16, a pressure plate 18, a switch circuit board assembly 20, a fingerprint recognition component 22, and a lock cylinder 24. In a direction D1 (indicated by a double-headed arrow) Figure 1 and Figure 2 In the lock 1, the membrane keypad assembly 16, support frame 12, waterproof pad 14, and pressure plate 18 are arranged and assembled in sequence. The switch circuit board assembly 20 is housed between the membrane keypad assembly 16 and the waterproof pad 14, and is connected to the outside via a cable 26 (which may include a connector at the end of the cable) (e.g., via mounting holes on the door panel to a control component located opposite the inside of the door panel). The membrane keypad assembly 16 is exposed in the electronic lock 1 and can be operated to trigger the switch circuit board assembly 20. The fingerprint recognition component 22 is housed in the membrane keypad assembly 16 and the pressure plate 18, and is connected to the switch circuit board assembly 20 via a cable 28 (which may include a connector at the end of the cable). The fingerprint recognition component 22 is exposed in the electronic lock 1 and is used to recognize fingerprints. The lock cylinder 24 is fixed to the support frame 12, and the latch actuating rod of the lock cylinder 24 is used to drive the latches of the latch assembly (not shown) located on the door panel. The electronic lock 1 is mounted to the door panel via the support frame 12. Furthermore, the electronic lock 1 includes an auxiliary base plate 30, which is fixed to the support frame 12 and engages with the mounting holes in the door panel during installation. Alternatively, the combination of the support frame 12, waterproof gasket 14, membrane keypad assembly 16, and pressure plate 18 can logically be considered as a sealing structure for the electronic lock housing, providing waterproofing for the switch circuit board assembly 20.

[0030] Please also refer to Figure 5 and Figure 6 The door panel is indicated by a dashed frame. Figure 5 In this embodiment, the support frame 12 has a first opening 122 and a second opening 124, both penetrating the support frame 12 in direction D1. The printed circuit board 202 of the switch circuit board assembly 20 has a plurality of switches 204 (e.g., but not limited to pairs of contacts) arranged facing the first opening 122. The membrane keypad assembly 16 includes an isolation plate 162, a flexible pad 164 (e.g., but not limited to a silicone pad), and a membrane 166. The waterproof pad 14 and the isolation plate 162 are located on the inner side 12a and outer side 12b of the support frame 12 in direction D1. The isolation plate 162 has a plurality of operating holes 1622 aligned with the plurality of switches 204. The flexible pad 164 is attached to the isolation plate 162 and covers the plurality of operating holes 1622, with a plurality of protrusions 1642 on the flexible pad 164 correspondingly extending into the plurality of operating holes 1622. A thin film 166 is attached to the outer surface of a flexible pad 164. Symbols corresponding to bumps 1642 (i.e., corresponding switches 204) are formed on the thin film 166. The user can press the thin film 166 on one of the symbols, causing the corresponding bump 1642 to move toward the printed circuit board 202 to trigger the corresponding switch 204.

[0031] The isolation plate 162 contacts the waterproof pad 14 through the first opening portion 122, so that the isolation plate 162 and the waterproof pad 14 together form an electronic device accommodating space 17 (reference). Figure 5 The electronic device housing 17 connects to the plurality of operating holes 1622. At least the printed circuit board 202 of the switch circuit board assembly 20 is completely housed within the electronic device housing 17. The waterproof gasket 14 has a plurality of connection holes 142. The pressure plate 18 and the isolation plate 162 are interconnected via the plurality of connection holes 142 (e.g., both are formed with perforated protrusions that extend into the connection holes 142 to directly abut against each other and are fixed with screws, such as...). Figure 6 As shown; the support frame 12 is correspondingly formed with a clearance structure for the protruding column to extend, so that the pressure plate 18 and the partition plate 162 sandwich the waterproof pad 14, so that the waterproof pad 14 is tightly against the partition plate 162. The waterproof pad 14 includes a groove 144, and the partition plate 162 correspondingly includes a protrusion 1624, which is inserted into the groove 144. Both the groove 144 and the protrusion 1624 surround the electronic device receiving space 17 to increase the waterproof effect of the electronic device receiving space 17. Furthermore, the waterproof pad 14 and the partition plate 162 also clamp the edge of the printed circuit board 202. In addition, in practice, the flexible pad 164 can be tightly attached to the partition plate 162 to effectively seal the plurality of operating holes 1622, thus effectively preventing moisture from entering the electronic device receiving space 17 from the plurality of operating holes 1622.

[0032] Furthermore, in this embodiment, although the groove 144 and the protrusion 1624 do not completely surround the electronic device housing space 17, but have gaps (the gap 1624a of the protrusion 1624 and the gap 145 of the waterproof pad 14 form a channel connecting the electronic device housing space 17 for the cable 26 to pass through), this gap is largely filled by the cable 26, which also helps moisture to enter the electronic device housing space 17. However, this is not a limitation in practice; for example, the groove 144 and the protrusion 1624 completely surround the electronic device housing space 17, and the cable 26 enters the electronic device housing space 17 through other channels. In addition, in practice, the protrusion 1624 still has a portion of the protrusion at the gap 1624a, which can press against the cable 26, helping to fix the cable 26. Furthermore, the plurality of connection holes 142 are generally located around the electronic device housing space 17, which helps the pressure plate 18 and the partition plate 162 to provide uniform structural restraint on the structure of the waterproof pad 14 corresponding to the electronic device housing space 17. In addition, in practice, the structure of the groove 144 can be modified to be set on the partition plate 162, and the structure of the protrusion 1624 can be modified to be set on the waterproof pad 14 accordingly; this structural configuration can still achieve the aforementioned waterproof effect.

[0033] Furthermore, in practice, the pressure plate 18 and the partition plate 162 are rigid components, while the waterproof pad 14 is a flexible component (e.g., but not limited to rubber). Therefore, the pressure plate 18 and the partition plate 162 can compress the waterproof pad 14, and after being directly fixedly connected to each other, they can maintain their relative positions. This ensures that during the installation of the electronic lock 1 to the door panel, the compression (or clamping) state of the pressure plate 18 and the partition plate 162 on the waterproof pad 14 will not change, thereby ensuring that the waterproof effect of the waterproof pad 14 on the electronic device housing space 17 is not affected. Additionally, in this embodiment, the waterproof pad 14 also has an opening 146 that connects to the electronic device housing space 17, allowing the cable 28 to pass through.

[0034] Please see Figures 3 to 5 and Figure 7In this embodiment, the isolation plate 162 has a receiving perforation 1626, and the waterproof pad 14 includes a groove structure 148, which forms a receiving area 148a. The isolation plate 162 and the groove structure 148 are interconnected via a second opening portion 124, so that the receiving perforation 1626 communicates with the receiving area 148a. The fingerprint recognition component 22 is housed within the receiving perforation 1626 and the receiving area 148a. The receiving perforation 1626 has a first portion 1626a and a second portion 1626b connected in direction D1, and the cross-section of the second portion 1626b is larger than the cross-section of the first portion 1626a. The groove structure 148 has a protruding wall structure 1482, which is composed of three arc-shaped plates arranged in a ring at intervals, with a positioning notch 1482a formed between adjacent arc-shaped plates. The isolation plate 162 is connected to the groove structure 148 via its second portion 1626b, and the protruding wall structure 1482 extends along direction D1 and is inserted into the second portion 1626b. The fingerprint recognition component 22 is also snapped into the positioning notch 1482a. In addition, the bottom of the groove structure 148 has an opening 1484 for the cable 28 to pass through. Furthermore, the fingerprint recognition component 22 is also fixedly connected to the support frame 12 via a mounting bracket 32 ​​(e.g., by screwing the mounting bracket 32).

[0035] like Figure 3 and Figure 4 As shown, in this embodiment, the pressure plate 18 has multiple protruding ribs (including a protruding rib 182a extending in an arc shape on the front side (i.e., towards the waterproof pad 14), three protruding ribs 182b extending horizontally on the rear side, and two protruding ribs 182c extending in an arc shape on the rear side), which have the effect of reinforcing the structure of the pressure plate 18 itself. The protruding ribs 182a correspond to the groove structure 148 and abut against the waterproof pad 14, and (see also...) Figure 8 ) Rib 182a (its outline is relatively positioned at) Figure 8 (Drawn in dashed lines) The edge of the second portion 1626b of the receiving perforation 1626 overlaps with the edge of the receiving perforation 1626 in direction D1, which contributes to the structural stability of the connection between the groove structure 148 and the receiving perforation 1626. Also, (see also...) Figure 2 and Figure 5 The protruding rib 182c is set to correspond to the electronic device accommodating space 17, and the pressure plate 18 with its flat part closely attached to the waterproof pad 14 (corresponding to the part of the electronic device accommodating space 17) can enhance the support effect provided by the pressure plate 18 to the electronic device accommodating space 17.

[0036] In addition, such as Figure 2 and Figure 4 As shown, in this embodiment, the waterproof pad 14 has a receiving groove 150, and the pressure plate 18 is received in the receiving groove 150 (e.g., Figure 2(As shown). The contour of the receiving groove 150 matches the contour of the pressure plate 18, which facilitates the pressure plate 18 pressing against the waterproof gasket 14. Please also refer to... Figure 5 The support frame 12 has a peripheral wall 126 and two door panel fixing holes 128, which are located inside the peripheral wall 126. A waterproof gasket 14 abuts against the edge of the peripheral wall 126 in direction D1. The support frame 12 is fixed to the door panel via the door panel fixing holes 128 (e.g., by using screws (not shown) to lock into the door panel fixing holes 128 from the inside of the door panel). The waterproof gasket 14 is sandwiched between the peripheral wall 126 of the support frame 12 and the door panel, and the support frame 12 does not contact the door panel. Therefore, the waterproof gasket 14 prevents external rainwater or moisture from entering the electronic lock 1 from between the peripheral wall 126 and the door panel. Furthermore, during the installation of the electronic lock 1 to the door panel, even if the waterproof gasket 14 is not properly sandwiched between the peripheral wall 126 of the support frame 12 and the door panel (e.g., the waterproof gasket 14 cannot be completely flat against the door panel, causing slight warping around the waterproof gasket 14), the waterproofing effect of the waterproof gasket 14 on the electronic device housing space 17 will not be affected. In addition, the support frame 12 is provided with multiple positioning posts to position the waterproof pad 14 relative to the support frame 12 (by inserting the positioning posts into the corresponding positioning holes on the waterproof pad 14). This helps to suppress the chance of the waterproof pad 14 warping during the installation of the electronic lock 1. The aforementioned positioning structure is also implemented for positioning between the support frame 12 and the auxiliary base plate 30, which will not be described in detail elsewhere.

Claims

1. A sealing structure for an electronic lock housing, characterized in that, Include: A support frame having a first opening portion that extends through the support frame in one direction; A waterproof pad located inside the support frame in the direction, the waterproof pad having a connection hole; An isolation plate, located on one side of the support frame in that direction, contacts the waterproof pad via the first opening to form an electronic device housing space together with the waterproof pad; and A pressure plate is located on the inner side of the support frame in the direction, and a waterproof pad is located between the partition plate and the pressure plate. The pressure plate and the partition plate are connected to each other through the connecting hole so that the waterproof pad is tightly against the partition plate.

2. The electronic lock housing sealing structure as described in claim 1, characterized in that, One of the isolation plate and the waterproof pad includes a protruding wall, and the other of the isolation plate and the waterproof pad includes a groove, the protruding wall being inserted into the groove and surrounding the electronic device accommodating space.

3. The electronic lock housing sealing structure as described in claim 1, characterized in that, The waterproof pad has a receiving groove in which the pressure plate is received, and the contour of the receiving groove matches the contour of the pressure plate.

4. The electronic lock housing sealing structure as described in claim 1, characterized in that, The support frame has a perimeter wall and a door panel fixing hole, the door panel fixing hole being located inside the perimeter wall, and the waterproof pad abutting against the edge of the perimeter wall in that direction.

5. The electronic lock housing sealing structure as described in claim 1, characterized in that, It also includes a flexible pad, wherein the isolation plate has an operating hole that communicates with the electronic device accommodating space, and the flexible pad is attached to the isolation plate and covers the operating hole.

6. The electronic lock housing sealing structure as described in claim 1, characterized in that, The support frame has a second opening portion, the partition plate has a receiving perforation, the waterproof pad includes a groove structure that forms a receiving area, and the partition plate and the groove structure are interconnected via the second opening portion so that the receiving perforation communicates with the receiving area.

7. An electronic lock, characterized in that, Include: The electronic lock housing sealing structure as described in any one of claims 1 to 4; and A printed circuit board disposed within the electronic device housing space.

8. The electronic lock as described in claim 7, characterized in that, The printed circuit board has a switch, the electronic lock housing sealing structure includes a flexible pad, the isolation plate has an operating hole that communicates with the electronic device accommodating space and aligns with the switch, the flexible pad is attached to the isolation plate and covers the operating hole, and the flexible pad can be pressed to trigger the switch.

9. The electronic lock as described in claim 7, characterized in that, It also includes a fingerprint recognition component, wherein the support frame has a second opening portion, the isolation plate has a receiving perforation, the waterproof pad includes a groove structure that forms a receiving area, the isolation plate and the groove structure are interconnected via the second opening portion so that the receiving perforation communicates with the receiving area, and the fingerprint recognition component is received in the receiving perforation and the receiving area.

10. The electronic lock as described in claim 7, characterized in that, The waterproof pad and the isolation plate clamp the printed circuit board.

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