Intelligent door lock with sound cavity structure
By designing multiple independent sound cavity structures in the smart door lock, the problem of insufficient speaker cavity space is solved, resulting in better sound production and enhanced sound depth and clarity.
Patent Information
- Application Number
- CN202520588224.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The speakers in existing smart door locks have limited size and small internal sound cavity space, resulting in unsatisfactory sound production.
A smart door lock with a sound cavity structure was designed. By forming multiple independent sound cavity spaces between the housing and the door lock panel, including a front sound cavity, a first rear sound cavity, and a second rear sound cavity, the sound cavity space behind the speaker is increased, the air pressure is balanced, and the degree of freedom of diaphragm vibration is improved.
The speaker's low-frequency response has been enhanced, resulting in a richer, fuller sound, and improved clarity and purity.
Smart Images
Figure CN223964300U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of smart door lock technology, specifically relating to a smart door lock with a sound cavity structure. Background Technology
[0002] Smart locks offer enhanced user security, identification, and management capabilities, and are now widely used in private residences, offices, and other locations. The speaker in a smart lock is typically integrated into the lock panel or the lock itself, providing alarm, doorbell, and voice prompt functions. To enhance the speaker's sound quality, acoustic chambers are usually placed at the front and rear of the speaker, resulting in a deeper, more resonant sound. However, the limited size of current smart locks and the relatively small internal acoustic chamber space lead to less than ideal speaker performance.
[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0004] The purpose of this invention is to provide a smart door lock with a sound cavity structure, which solves the problem that existing smart door locks cannot provide sufficient sound cavity space for the internal speaker.
[0005] To achieve the above objectives, a specific embodiment of this utility model provides an intelligent door lock with a sound cavity structure. This intelligent door lock includes a housing, a door lock panel, and a door lock speaker. A first receiving cavity is formed inside the housing, and an installation port communicating with the first receiving cavity is provided on the housing. The door lock panel mates with and closes the installation port. A second receiving cavity for accommodating the door lock speaker is formed inside the door lock panel. A front sound cavity is formed between the front surface of the door lock speaker and the front wall of the second receiving cavity. A first rear sound cavity is formed between the rear surface of the door lock speaker and the rear wall of the second receiving cavity. A second rear sound cavity is formed between the rear surface of the door lock panel and the rear wall of the first receiving cavity. A sound outlet hole communicating with the front sound cavity is provided on the front side of the door lock panel, and a connecting hole communicating with the first and second rear sound cavities is provided on the rear side of the door lock panel.
[0006] In one or more embodiments of this utility model, the front acoustic cavity and the first rear acoustic cavity are not connected.
[0007] In one or more embodiments of the present invention, the door lock panel includes a first housing and a second housing that enclose a second receiving cavity.
[0008] In one or more embodiments of the present invention, the first housing includes a first inner surface that fits against the front surface of the door lock speaker, and a first groove that communicates with the sound outlet and faces the door lock speaker is formed on the first inner surface, and a front sound cavity is formed between the front surface of the door lock speaker and the bottom of the first groove.
[0009] In one or more embodiments of the present invention, the first housing includes a first outer surface facing away from the door lock speaker, a second groove is formed on the first outer surface, and the sound outlet extends from the circumferential groove wall of the first groove to the circumferential groove wall of the second groove.
[0010] In one or more embodiments of this utility model, the sound outlet hole extends through the bottom of the first groove but does not extend through the first outer surface.
[0011] In one or more embodiments of the present invention, the second accommodating cavity includes a second sub-cavity formed on the second housing, the second sub-cavity being spaced apart from the rear surface of the door lock speaker and forming a first rear sound cavity.
[0012] In one or more embodiments of the present invention, the second housing includes a second inner surface facing the door lock horn and a second outer surface facing away from the door lock horn. A third groove facing the door lock horn is formed on the second inner surface, and a fourth groove is formed on the second outer surface. A connecting hole extends from the circumferential groove wall of the third groove to the circumferential groove wall of the fourth groove.
[0013] In one or more embodiments of this utility model, the distance between the second outer surface and the rear cavity wall of the first accommodating cavity is greater than the distance between the rear surface of the door lock horn and the second inner surface.
[0014] In one or more embodiments of this utility model, the first housing and the second housing are fixedly connected by bolts.
[0015] Compared with the existing technology, this utility model utilizes the space between the box and the door lock panel to form a new sound cavity structure, which increases the sound cavity space behind the door lock speaker, provides more space to balance air pressure, and allows the diaphragm of the door lock speaker to vibrate more freely, thereby enhancing the low frequency response and making the sound more robust. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1This is a three-dimensional structural diagram of an intelligent door lock with a sound cavity structure according to an embodiment of the present invention;
[0018] Figure 2 This is a cross-sectional view of a smart door lock with a sound cavity structure according to an embodiment of the present invention;
[0019] Figure 3 This is an internal structural diagram of an intelligent door lock with a sound cavity structure according to an embodiment of the present invention;
[0020] Figure 4 This is an exploded view of a smart door lock with a sound cavity structure according to an embodiment of the present invention, taken from a single perspective.
[0021] Figure 5 This is an exploded view of the intelligent door lock with a sound cavity structure in one embodiment of the present invention from another perspective.
[0022] Explanation of main reference numerals in the attached drawings: 1. Box body; 101. First accommodating cavity; 102. Mounting port; 2. Door lock panel; 21. First housing; 211. First inner surface; 212. First outer surface; 213. First groove; 214. Second groove; 22. Second housing; 221. Second inner surface; 222. Second outer surface; 223. Third groove; 224. Fourth groove; 201. Second accommodating cavity; 202. Sound outlet hole; 203. Connecting hole; 3. Door lock speaker; 4. Magnet. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0024] In the description of this utility model, it should be understood that the terms "front", "rear", "top", "bottom", "upper", "lower", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] In one embodiment, reference is made to Figures 1 to 5 As shown, this embodiment provides a smart door lock with a sound cavity structure, which includes a housing 1, a door lock panel 2, a door lock speaker 3, and a magnet 4.
[0027] Specifically, the housing 1 has a first receiving cavity 101 inside, and a mounting opening 102 communicating with the first receiving cavity 101 is provided on the front side of the housing 1. The door lock panel 2 cooperates with the mounting opening 102 and closes the mounting opening 102. The magnet 4 is installed on the door lock panel 2, and a magnetic attraction force is generated between the magnet 4 and the housing 1, which fixes the door lock panel 2 to the mounting opening 102. The door lock panel 2 has a second receiving cavity 201 inside to receive the door lock speaker 3. A front sound cavity is formed between the front surface of the door lock speaker 3 and the front wall of the second receiving cavity 201. A sound outlet 202 communicating with the front sound cavity is provided on the front side of the door lock panel 2. The sound generated by the door lock speaker 3 can be transmitted to the outside of the housing 1 in sequence through the front sound cavity and the sound outlet 202. A first rear acoustic cavity is formed between the rear surface of the door lock speaker 3 and the rear wall of the second accommodating cavity 201, and a second rear acoustic cavity is formed between the rear surface of the door lock panel 2 and the rear wall of the first accommodating cavity 101. A connecting hole 203 is provided on the rear side of the door lock panel 2, and the first and second rear acoustic cavities are connected through the connecting hole 203, so that the first and second rear acoustic cavities together constitute the rear acoustic cavity, increasing the space of the rear acoustic cavity. When the door lock speaker 3 emits sound, the rear acoustic cavity can provide enough space to balance the air pressure, allowing the diaphragm of the door lock speaker 3 to vibrate more freely, thereby enhancing the low-frequency response and making the sound more robust.
[0028] In one embodiment, reference is made to Figure 2 and Figure 3 As shown, in order to avoid the sound emitted from the rear of the door lock speaker 3 from interfering with the sound emitted from the front after reflection, and to reduce the interference of the rear reflected sound on the front output sound, the front sound cavity and the first rear sound cavity are relatively independent and not connected to each other, thereby improving the clarity and purity of the sound of the door lock speaker 3.
[0029] Furthermore, the front acoustic chamber is separated from the first rear acoustic chamber by the door lock speaker 3.
[0030] In one embodiment, reference is made to Figures 2 to 5As shown, the door lock panel 2 includes a first housing 21 and a second housing 22. The first housing 21 and the second housing 22 are fixedly connected together by bolts. The first housing 21 and the second housing 22 together form a second accommodating cavity 201. The internal cavity of the first housing 21 forms a first sub-cavity of the second accommodating cavity 201, and the internal cavity of the second housing 22 forms a second sub-cavity of the second accommodating cavity 201.
[0031] The first housing 21 includes a first inner surface 211 facing the door lock speaker 3, and the first inner surface 211 is the cavity wall of the first sub-cavity facing the door lock speaker 3. A first groove 213 is recessed on the first inner surface 211, the first groove 213 is connected to the sound outlet 202 and its opening is also facing the door lock speaker 3. The front surface of the door lock speaker 3 is in contact with the first inner surface 211, sealing the opening of the first groove 213, so that a front sound cavity is formed between the front surface of the door lock speaker 3 and the bottom of the first groove 213.
[0032] In one embodiment, reference is made to Figure 2 and Figure 4 As shown, the first housing 21 also includes a first outer surface 212 disposed opposite to the first inner surface 211. The first outer surface 212 is disposed away from the door lock speaker 3. A second groove 214 is formed on the first outer surface 212. The sound outlet 202 passes through the circumferential groove wall of the first groove 213 to the circumferential groove wall of the second groove 214.
[0033] Furthermore, the second groove 214 is an annular groove, and the sound outlet 202 penetrates the inner circumferential groove wall of the second groove 214.
[0034] Furthermore, the sound outlet 202 extends into a portion of the bottom of the first groove 213, but does not extend into the first outer surface 212 of the first housing 21.
[0035] In one embodiment, reference is made to Figure 2 , Figure 4 and Figure 5 As shown, the second housing 22 includes a second inner surface 221 facing the door lock speaker 3. The second inner surface 221 is the cavity wall of the second sub-cavity facing the door lock speaker 3. The second inner surface 221 is spaced apart from the rear surface of the door lock speaker 3, and a first rear sound cavity is formed between the two. The second housing 22 also includes a second outer surface 222 facing away from the door lock speaker 3. The second outer surface 222 and the cavity wall of the housing 1 facing the door lock speaker 3 form a second rear sound cavity.
[0036] Furthermore, a third groove 223 facing the door lock horn 3 is formed on the second inner surface 221, and a fourth groove 224 is formed on the second outer surface 222. The connecting hole 203 extends from the circumferential groove wall of the third groove 223 to the circumferential groove wall of the fourth groove 224.
[0037] Furthermore, the fourth groove 224 is an annular groove, and the connecting hole 203 penetrates the inner circumferential groove wall of the fourth groove 224.
[0038] In one embodiment, reference is made to Figure 2 As shown, in order to ensure that the second rear sound cavity has sufficient space, the distance between the second outer surface 222 and the rear cavity wall of the first accommodating cavity 101 is greater than the distance between the rear surface of the door lock speaker 3 and the second inner surface 221, that is, the length of the second rear sound cavity in the front-back direction is greater than the length of the first rear sound cavity in the front-back direction.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A smart door lock having an acoustic cavity structure, characterized by, The smart door lock with the sound cavity structure comprises a box body (1), a door lock panel (2) and a door lock horn (3), a first accommodating cavity (101) is formed in the box body (1), an installation opening (102) is formed in the box body (1) and communicates with the first accommodating cavity (101), the door lock panel (2) is matched with the installation opening (102) and closes the installation opening (102), a second accommodating cavity (201) for accommodating the door lock horn (3) is formed in the door lock panel (2), a front sound cavity is formed between the front surface of the door lock horn (3) and the front cavity wall of the second accommodating cavity (201), a first rear sound cavity is formed between the rear surface of the door lock horn (3) and the rear cavity wall of the second accommodating cavity (201), a second rear sound cavity is formed between the rear surface of the door lock panel (2) and the rear cavity wall of the first accommodating cavity (101), an sound hole (202) is formed in the front side of the door lock panel (2) and communicates with the front sound cavity, and a communication hole (203) is formed in the rear side of the door lock panel (2) and communicates the first rear sound cavity and the second rear sound cavity.
2. The smart door lock with a sound cavity structure according to claim 1, wherein, The front sound cavity and the first rear sound cavity are not communicated.
3. The smart door lock having a sound cavity structure according to claim 1, wherein, The door lock panel (2) comprises a first shell (21) and a second shell (22) which surround to form the second accommodating cavity (201).
4. The smart door lock having an acoustic cavity structure according to claim 3, characterized in that, The first shell (21) comprises a first inner surface (211) which is matched with the front surface of the door lock horn (3), a first groove (213) is formed in the first inner surface (211) and communicates with the sound hole (202) and faces the door lock horn (3), and the front sound cavity is formed between the front surface of the door lock horn (3) and the groove bottom of the first groove (213).
5. The smart door lock with a sound cavity structure according to claim 4, characterized in that, The first shell (21) comprises a first outer surface (212) which faces away from the door lock horn (3), a second groove (214) is formed in the first outer surface (212), and the sound hole (202) penetrates from the circumferential groove wall of the first groove (213) to the circumferential groove wall of the second groove (214).
6. The smart door lock having a sound cavity structure according to claim 4, characterized in that, The sound hole (202) penetrates to the groove bottom of the first groove (213) and does not penetrate to the first outer surface (212).
7. The smart door lock having an acoustic cavity structure according to claim 3, characterized in that, The second accommodating cavity (201) comprises a second sub-cavity formed on the second shell (22), the cavity wall of the second sub-cavity which faces the door lock horn (3) is arranged in a spaced manner with the rear surface of the door lock horn (3) and forms the first rear sound cavity.
8. The smart door lock with a sound cavity structure according to claim 7, characterized in that, The second shell (22) comprises a second inner surface (221) which faces the door lock horn (3) and a second outer surface (222) which faces away from the door lock horn (3), a third groove (223) is formed in the second inner surface (221) and faces the door lock horn (3), a fourth groove (224) is formed in the second outer surface (222), and the communication hole (203) penetrates from the circumferential groove wall of the third groove (223) to the circumferential groove wall of the fourth groove (224).
9. The smart door lock having an acoustic cavity structure according to claim 8, wherein, The distance between the second outer surface (222) and the rear cavity wall of the first accommodating cavity (101) is greater than the distance between the rear surface of the door lock horn (3) and the second inner surface (221).
10. The smart door lock having an acoustic cavity structure according to claim 3, wherein, The first shell (21) and the second shell (22) are fixedly connected by bolts.