Low-speed pedestrian warning tone structure of electric automobile
By using a detachable shell and cover design, combined with a mounting plate, the problem of high maintenance costs and poor connection stability of low-speed pedestrian warning sound structures for electric vehicles is solved, achieving low-cost maintenance and high-stability connection, thus ensuring driving safety.
Patent Information
- Application Number
- CN202520715586.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-16
AI Technical Summary
Existing low-speed pedestrian warning sound structures for electric vehicles are costly to repair after speaker damage, have poor connection stability, and cannot be easily disassembled for repair.
The design features a detachable housing and cover, combined with a mounting plate, which facilitates the maintenance of the internal speakers and PCB board. The housing and cover provide a sealed installation, enhancing connection stability, and the mounting plate secures it to the electric vehicle.
It reduces maintenance costs, improves structural connectivity and stability, ensures the maintainability of the speaker and PCB board, ensures that a warning sound is emitted when driving at low speeds, and improves driving safety.
Smart Images
Figure CN223904964U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sound production device technical field, specifically, relate to a low -speed pedestrian prompt tone structure of electric automobile. BACKGROUND
[0002] The existing electric automobile compares with oil car, because electric automobile does not have engine, thereby in the driving process does not have the roar of engine, is relatively quiet, and electric automobile is in the low -speed driving process, is easy to be ignored by the road pedestrian or rider, thereby causes traffic accident, in order to increase and cause the attention of pedestrian or rider, set up low -speed pedestrian prompt tone structure on electric automobile. The existing prompt tone structure includes shell and the loudspeaker and PCB board set up in the shell, is provided with connecting interface on the shell, and is directly installed on electric automobile through connecting interface, and the loudspeaker is controlled through PCB board and emits prompt tone when low -speed driving.
[0003] But the existing structure is damaged after using a period of loudspeaker, because shell cannot be disassembled needs to change the whole structure, maintenance cost is higher, simultaneously only through connecting interface connects, and the stability and connectivity of connection are relatively poor. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem that the existing structure connectivity is poor, and maintenance cost is higher, in order to overcome above existing technology's defects, the utility model provides a through detachable casing and lid body is convenient to maintain the loudspeaker and PCB board in the inside, does not need to change entirely, reduces maintenance cost, simultaneously through mounting plate can be conveniently and firmly installed on electric automobile, further promotes the connectivity and stability of structure.
[0005] For the purpose of the utility model, the following technical solutions are adopted to realize it:
[0006] The low-speed pedestrian prompt sound structure of an electric vehicle comprises a shell, a PCB board, a loudspeaker, a cover and a mounting plate; the top surface of the shell is open, and a shell mounting cavity is arranged in the shell and communicates with the top surface of the shell; a connecting interface is arranged on one side of the shell; the PCB board is mounted in the shell mounting cavity and is electrically connected with the connecting interface; the lower part of the loudspeaker is mounted in the shell mounting cavity and is electrically connected with the PCB board; the bottom surface of the cover is open, and a cover mounting cavity is arranged in the cover and communicates with the bottom surface of the cover; the cover is detachably connected with the shell, the top surface of the shell is sealed by the cover, and the upper part of the loudspeaker is mounted in the cover mounting cavity; a plurality of sound holes for sound emission of the loudspeaker are arranged on the top surface of the cover; the mounting plate is detachably connected with the shell; and the shell is fixedly connected with the electric vehicle through the mounting plate. The shell and the cover are used to conveniently mount the PCB board and the loudspeaker, facilitate maintenance of the loudspeaker and the PCB board, reduce maintenance cost, and enable the structure to be mounted on the electric vehicle, thereby further improving the connectivity and stability of the structure; meanwhile, the loudspeaker is controlled by the PCB board to emit a prompt sound during low-speed driving, thereby facilitating the reminding of pedestrians or cyclists on the roadside and attracting attention, and ensuring driving safety.
[0007] Preferably, the mounting plate comprises a first vertical plate, a horizontal plate and a second vertical plate which are integrally formed; the first vertical plate and the second vertical plate are respectively connected perpendicularly to the two ends of the horizontal plate, and the first vertical plate and the second vertical plate are oppositely arranged; the first vertical plate is inserted into one side of the shell, and the horizontal plate is fixedly connected with the bottom surface of the shell; and the second vertical plate is provided with a mounting hole for connection with the electric vehicle. The Z-shaped structure of the mounting plate facilitates positioning and installation, thereby improving the convenience of installation.
[0008] Preferably, at least one side of the shell is provided with a slot for insertion of the first vertical plate; a positioning protrusion is arranged on the outer wall of the shell and located in the slot; and the first vertical plate is provided with a positioning hole for positioning cooperation with the positioning protrusion. The slot facilitates insertion of the first vertical plate, and the positioning protrusion enters the positioning hole, thereby facilitating the accuracy and stability of insertion of the first vertical plate, preventing the first vertical plate from being separated from the shell, and ensuring the firmness of connection.
[0009] Preferably, the horizontal plate and the bottom surface of the shell are fixedly connected by at least one second screw.
[0010] As preferred, a plurality of supporting protrusions are arranged on the inner circumferential wall of the shell mounting cavity of the shell; the PCB board is placed flat on all the supporting protrusions; a supporting column is arranged in the shell mounting cavity; the supporting column supports below the PCB board, and the PCB board is fixedly connected to the supporting column by the first screw. The supporting protrusions can facilitate the support and placement of the PCB board, and the first screw can also facilitate the fixation of the PCB board in the shell.
[0011] As preferred, the bottom of the loudspeaker is placed flat on the PCB board; a convex ring is arranged on the sound film of the top of the loudspeaker in the circumferential direction; an annular groove is arranged on the inner wall of the top of the cover mounting cavity of the cover and is positioned and matched with the convex ring; the cover is mounted to the shell, and the loudspeaker is limited between the PCB board and the cover. The positioning and matching between the convex ring and the annular groove facilitate the limitation and positioning of the loudspeaker between the PCB board and the cover.
[0012] As preferred, a step is arranged on the inner side below the annular groove in the circumferential direction; the top outer circumferential wall of the loudspeaker basket is limited on the step. The cooperation between the step and the loudspeaker basket further ensures the stability of the loudspeaker installation and the accuracy of the positioning.
[0013] As preferred, the shell and the cover are both cuboid structures, vertical connection clamping blocks are arranged at the four corners of the shell; and the cover is provided with a plurality of clamping openings which are matched with the connection clamping blocks. The cooperation between the connection clamping blocks and the clamping openings facilitates the disassembly and assembly, and the arrangement at the four corners further improves the connection strength and stability.
[0014] As preferred, the sound emitting hole comprises a plurality of first hole channels arranged in the transverse direction and a plurality of second hole channels arranged in the transverse direction; the first hole channels and the second hole channels are arranged in the upper and lower layers, and the first hole channels are arranged in the interstices of the second hole channels. The design of the first hole channels and the second hole channels further improves the sound emitting effect.
[0015] In summary, the structure of the utility model can conveniently install the PCB board and the loudspeaker in the shell and cover, facilitate the maintenance of the internal loudspeaker and PCB board, reduce the maintenance cost, and install the structure on the electric vehicle through the mounting plate, further improve the connectivity and stability of the structure; at the same time, the loudspeaker controlled by the PCB board can emit a prompt sound when driving at low speed, so as to facilitate the reminding of the pedestrians or cyclists on the roadside, attract attention, and ensure the safety of driving. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is the structure schematic view of the front of the low-speed pedestrian prompt sound structure of the electric vehicle of the utility model.
[0017] Figure 2 is a structural schematic view of the back of the low-speed pedestrian prompt sound structure of the electric vehicle.
[0018] Figure 3 is a first sectional view of the low-speed pedestrian prompt sound structure of the electric vehicle.
[0019] Figure 4 is a second sectional view of the low-speed pedestrian prompt sound structure of the electric vehicle.
[0020] Mark explanation:
[0021] 1, shell; 10, connecting block; 11, shell mounting cavity; 12, support convex edge; 13, support column; 14, slot; 15, positioning protrusion; 2, PCB; 21, first screw; 3, loudspeaker; 31, sound film; 32, basin frame; 311, convex ring; 4, cover; 40, bayonet; 41, cover mounting cavity; 42, sound hole; 421, first hole; 422, second hole; 43, annular groove; 44, step; 5, mounting plate; 51, first vertical plate; 511, positioning hole; 52, horizontal plate; 53, second vertical plate; 54, mounting hole; 55, second screw; 6, connection interface. DETAILED DESCRIPTION
[0022] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.
[0023] In the description of the embodiments of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0024] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0025] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0026] like Figures 1 to 4 As shown, a low-speed pedestrian warning sound structure for an electric vehicle includes a housing 1, a PCB board 2, a speaker 3, a cover 4, and a mounting plate 5. Both the housing 1 and the cover 4 are cuboid structures. The top surface of the housing 1 is open, and a housing mounting cavity 11 connected to the top surface of the housing 1 is provided inside the housing 1. A connection interface 6 is provided on the rear side of the housing 1. The PCB board 2 is installed flatly in the housing mounting cavity 11, and the PCB board 2 is electrically connected to the connection interface 6 to realize signal transmission. The lower part of the speaker 3 is installed in the housing mounting cavity 11 and electrically connected to the PCB board 2; the bottom surface of the cover 4 is open, and the cover 4 has a cover mounting cavity 41 that communicates with the bottom surface of the cover 4; the cover 4 is detachably connected to the housing 1, the cover 4 seals the top surface of the housing 1, and the upper part of the speaker 3 is installed in the cover mounting cavity 41; the top surface of the cover 4 is provided with several sound holes 42 for the speaker 3 to emit sound, and the sound holes 42 communicate with the top of the speaker 3; the mounting plate 5 is detachably connected to the housing 1; and the housing 1 is fixedly connected to the electric vehicle through the mounting plate 5. This structure facilitates the installation of the PCB board 2 and the speaker 3 inside the housing 1 and the cover 4, making it convenient to maintain the speaker 3 and the PCB board 2 inside without replacing the whole thing, reducing maintenance costs. The mounting plate 5 allows it to be installed on the electric vehicle, further improving the connectivity and stability of the structure; at the same time, the PCB board 2 controls the speaker 3 to emit a warning sound when driving at low speeds, thereby alerting pedestrians or cyclists near the vehicle, attracting their attention, and ensuring driving safety.
[0027] like Figure 1 and Figure 2 As shown, vertically distributed connecting blocks 10 are provided at the four corners of the housing 1; and latches 40 that engage with the connecting blocks 10 are provided at the four corners of the cover 4. The engagement between the connecting blocks 10 and the latches 40 facilitates assembly and disassembly, while the placement at the four corners further enhances the connection strength and stability.
[0028] like Figure 3 and Figure 4 As shown, the housing 1 has several vertically distributed support protrusions 12 on the inner peripheral wall of the housing mounting cavity 11; the outer edge of the PCB board 2 is placed flat on all the support protrusions 12, and a support column 13 is provided inside the housing mounting cavity 11; the support column 13 supports the PCB board 2 below, and the PCB board 2 is fixedly connected to the support column 13 by a first screw 21. The support protrusions 12 facilitate the support and placement of the PCB board 2, and the first screw 21 also facilitates the fixation of the PCB board 2 inside the housing 1.
[0029] As shown in Figure 3 and Figure 4 , the bottom of the loudspeaker 3 is placed flat on the PCB board 2; the convex ring 311 is arranged on the sound film 31 of the top of the loudspeaker 3 in the circumferential direction; the annular groove 43 is arranged on the inner wall of the top of the cover mounting cavity 41 of the cover 4, which is positioned and matched with the convex ring 311; the cover 4 is mounted on the shell 1, and the loudspeaker 3 is limited between the PCB board 2 and the cover 4. Through the positioning and matching between the convex ring 311 and the annular groove 43, the loudspeaker 3 is conveniently limited and positioned between the PCB board 2 and the cover 4. The lower inner side of the annular groove 43 is arranged in the circumferential direction with a step 44; the outer circumferential wall of the top of the loudspeaker 3 is limited on the step 44. Through the cooperation between the step 44 and the loudspeaker 32, the stability of the loudspeaker 3 installation and the accuracy of the positioning are further ensured.
[0030] As shown in Figures 1 to 4 , the mounting plate 5 includes a first vertical plate 51, a horizontal plate 52 and a second vertical plate 53 which are integrally formed; the first vertical plate 51 and the second vertical plate 53 are respectively connected vertically at both ends of the horizontal plate 52, and the first vertical plate 51 and the second vertical plate 53 are reversely arranged; the first vertical plate 51 is inserted on one side of the shell 1, and the horizontal plate 52 is fixedly connected with the bottom surface of the shell 1; the second vertical plate 53 is provided with a mounting hole 54 for connecting with the electric vehicle. The mounting plate 5 is in Z-shaped structure, which is convenient for positioning and installation, and improves the convenience of installation.
[0031] As shown in Figures 1 to 4 , at least one side of the shell 1 is provided with a slot 14 for inserting the first vertical plate 51; in this embodiment, the front side, the left side and the right side of the shell 1 are all provided with a vertically distributed slot 14, and the outer wall of the shell 1 and located in the slot 14 is provided with a positioning protrusion 15; the first vertical plate 51 is provided with a positioning hole 511 which is positioned and matched with the positioning protrusion 15. Through the slot 14, the first vertical plate 51 is inserted, and at the same time, the positioning protrusion 15 enters the positioning hole 511, which is convenient for the accuracy and stability of the first vertical plate 51 insertion, prevents the first vertical plate 51 from being separated from the shell 1, and ensures the firmness of the connection. The horizontal plate 52 and the bottom surface of the shell 1 are fixedly connected by at least one second screw 55, and in this embodiment, three second screws 55 are used for fixation.
[0032] As shown in Figure 2 and 3 , the sound hole 42 includes a plurality of first hole channels 421 arranged transversely and a plurality of second hole channels 422 arranged transversely; the first hole channels 421 and the second hole channels 422 are arranged in layers, and the first hole channels 421 are arranged in the gaps between the second hole channels 422. Through the design of the first hole channels 421 and the second hole channels 422, the sound effect is further improved.
[0033] The utility model discloses the advantages are: the structure through casing 1 and cover 4 are convenient for installing PCB board 2 and loudspeaker 3 in, and the inside loudspeaker 3 and PCB board 2 are conveniently maintained, do not need to replace as a whole, reduce maintenance cost, and through mounting plate 5 can be installed on electric automobile, further promote the connectivity and stability of structure, simultaneously through the prompt sound of PCB board 2 control loudspeaker 3 when low -speed driving, thereby convenient for reminding the pedestrian or rider of car side, cause attention, ensure the safety of driving.
[0034] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0035] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "in the present embodiment", "specific examples" or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.
[0036] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A low-speed pedestrian alert sound structure for an electric vehicle, characterized by comprising: The utility model provides a loudspeaker, including shell (1), PCB board (2), loudspeaker (3), cover (4) and mounting plate (5), the top of shell (1) is open, and the shell (1) is provided with the shell mounting cavity (11) of the top surface communication of shell (1) in, shell (1) one side is provided with the connecting interface (6), PCB board (2) is installed in shell mounting cavity (11), and PCB board (2) is electrically connected with connecting interface (6), the lower part of loudspeaker (3) is installed in shell mounting cavity (11), and is electrically connected with PCB board (2), the bottom of cover (4) is open, and cover (4) is provided with the cover mounting cavity (41) of the bottom surface communication of cover (4) in, cover (4) can be detachably connected on shell (1), the top of cover (4) seals the top of shell (1), and the upper part of loudspeaker (3) is installed in cover mounting cavity (41), the top of cover (4) is provided with a plurality of sound holes (42) for loudspeaker (3) sound production, mounting plate (5) is detachably connected on shell (1), and shell (1) is fixedly connected on electric automobile through mounting plate (5).
2. The low-speed pedestrian alert sound structure for an electric vehicle according to claim 1, characterized by, The mounting plate (5) includes a first vertical plate (51), a horizontal plate (52), and a second vertical plate (53) formed integrally; the first vertical plate (51) and the second vertical plate (53) are respectively connected perpendicularly to both ends of the horizontal plate (52), and the first vertical plate (51) and the second vertical plate (53) are oppositely arranged; the first vertical plate (51) is inserted into one side of the shell (1), and the horizontal plate (52) is fixedly connected with the bottom surface of the shell (1); the second vertical plate (53) is provided with a mounting hole (54) for connecting with the electric automobile.
3. The low-speed pedestrian alert sound structure of an electric vehicle according to claim 2, characterized by, At least one side of the shell (1) is provided with a slot (14) for inserting the first vertical plate (51); the outer wall of the shell (1) and located in the slot (14) is provided with a positioning protrusion (15); the first vertical plate (51) is provided with a positioning hole (511) matched with the positioning protrusion (15).
4. The low speed pedestrian chime structure of an electric vehicle according to claim 2, wherein The horizontal plate (52) and the bottom surface of the shell (1) are fixedly connected by at least one second screw (55).
5. The low-speed pedestrian alert sound structure for an electric vehicle according to claim 1, characterized by, The inner circumferential wall of the shell mounting cavity (11) of the shell (1) is provided with a plurality of support protrusions (12); the PCB board (2) is placed flat on all the support protrusions (12), and the shell mounting cavity (11) is provided with a support column (13); the support column (13) is supported below the PCB board (2), and the PCB board (2) is fixedly connected to the support column (13) by a first screw (21).
6. The low speed pedestrian chime structure for an electric vehicle of claim 1, wherein, The bottom of the loudspeaker (3) is placed flat on the PCB board (2); the top of the loudspeaker (3) is provided with a convex ring (311) on the circumferential direction of the sound film (31); the inner wall of the top of the cover mounting cavity (41) of the cover (4) is provided with an annular groove (43) matched with the convex ring (311); the cover (4) is installed on the shell (1), and the loudspeaker (3) is limited between the PCB board (2) and the cover (4).
7. The low-speed pedestrian chime structure of an electric vehicle according to claim 6, wherein A step (44) is arranged on the inner side of the annular groove (43) in the circumferential direction; the top outer wall of the speaker (3) is limited on the step (44).
8. The low speed pedestrian chime structure of an electric vehicle according to claim 1, wherein The shell (1) and the cover (4) are both cuboid structures, the shell (1) is provided with vertically distributed connecting clamping blocks (10) at four corners thereof; the cover (4) is provided with clamping openings (40) at four corners thereof, which are clamped with the connecting clamping blocks (10).
9. The low speed pedestrian chime structure for an electric vehicle of claim 1, wherein, The sound emitting hole (42) comprises a plurality of first hole channels (421) and a plurality of second hole channels (422) arranged transversely and spaced apart; the first hole channels (421) and the second hole channels (422) are arranged in layers in the up-down direction, and the first hole channels (421) are arranged in the interspace with the plurality of second hole channels (422).