A vehicle acoustic warning device and a method of making the same

Abstract

The present application relates to the technical field of vehicle engineering, and especially relates to a vehicle acoustic warning device and a preparation method thereof, which comprises a front shell, a rear shell arranged opposite to the open end of the front shell, a bottom plate and a basin frame structure integrally formed on the bottom plate, the basin frame structure comprising a center cylinder and a ring-shaped support, a vibration assembly comprising a sound film fixed on the ring-shaped support and a voice coil fixed on the bottom of the sound film, a magnetic circuit assembly comprising a magnetic steel fixed in the center cylinder, the voice coil and the magnetic steel being gap-fitted to realize relative vibration, wherein a wire arranging part is further arranged on the bottom plate, the wire arranging part being arranged between the center cylinder and the ring-shaped support, the height of the wire arranging part being between the center cylinder and the ring-shaped support, the wire arranging part being used for arranging the wire of the voice coil into an arc line, and the wire arranging part being removed after the wire of the voice coil is arranged into an arc line. Through the arrangement of the above structure, the operation convenience is improved and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle engineering, in particular to a vehicle acoustic warning device and a preparation method thereof. BACKGROUND

[0002] The vehicle acoustic warning device, also known as AVAS, is a device that emits simulated sound when an electric vehicle is driving at low speed. Its purpose is to avoid the risk of auditory identification by pedestrians and to protect the safety of pedestrians.

[0003] In the prior art, patent No. CN218750537U discloses a car pedestrian warning device. The device is provided with a voice coil, a diaphragm, a magnetic circuit system and a panel on the mounting seat. The voice coil is connected with alternating current to make the voice coil reciprocate in the magnetic field formed by the magnetic circuit system, thereby emitting a vehicle prompt sound.

[0004] However, the base of the above-mentioned pedestrian warning device includes a rear cover and a bracket, the magnetic circuit system and the diaphragm are respectively installed at the bottom and the top of the bracket, the panel and the rear cover are respectively installed at the bottom of the magnetic circuit system and the top of the diaphragm, and the bracket also has a welding piece for communication with the lead of the voice coil. The operation is relatively cumbersome when installing in detail, especially when connecting the lead of the voice coil with the welding piece, the space is narrow, it is difficult to straighten the arc on the lead, and the overall cost is also relatively high. SUMMARY

[0005] In view of at least one of the above technical problems, the present application provides a vehicle acoustic warning device and a preparation method thereof, which improves the convenience of device installation and reduces the cost of the device by improving the structure.

[0006] According to a first aspect of the present application, a vehicle acoustic warning device is provided, comprising:

[0007] a front shell in a cover structure;

[0008] a rear shell arranged opposite to the open end of the front shell, comprising a bottom plate for connecting with the front shell and a basin structure integrally formed on the bottom plate, the basin structure comprising a center cylinder vertically arranged at the center of the bottom plate and an annular bracket arranged at the periphery of the center cylinder, the bottom of the center cylinder being provided with a through opening with the bottom plate, and the height of the annular bracket being greater than that of the center cylinder;

[0009] a vibration assembly comprising a diaphragm fixed on the annular bracket and a voice coil fixed at the bottom of the diaphragm;

[0010] a magnetic circuit assembly comprising a magnetic steel fixed in the center cylinder, the voice coil and the magnetic steel being gap-fitted to realize relative vibration;

[0011] The bottom plate is further provided with a wire arranging part, which is arranged between the center cylinder and the annular support, has a height between the center cylinder and the annular support, is used for arranging the lead wire of the voice coil into an arc shape, and is removed after the lead wire of the voice coil is arranged into an arc shape.

[0012] Further, the annular support comprises an annular support table and support columns fixed at two ends of the annular support table and the bottom plate respectively, the support columns are arranged in a circumferential direction and at least three in number, and the distance between two adjacent support columns is not less than the pick-and-place distance of the wire arranging part.

[0013] Further, the wire arranging part is a plate structure with a height lower than that of the support columns, and the top of the wire arranging part is provided with a rounded corner.

[0014] Further, the wire arranging part is integrally formed on the bottom plate, and the wire arranging part is perpendicular to the bottom plate.

[0015] Further, the wire arranging part is a plate structure, the top of the wire arranging part is provided with a rounded corner, and the lead wire of the voice coil is arranged into an arc shape through the top of the wire arranging part.

[0016] Further, the wire arranging part is a cylindrical structure, and the lead wire of the voice coil is arranged into an arc shape after being wrapped around the side wall of the wire arranging part.

[0017] Further, the wire arranging part is a prism structure, and the top of the wire arranging part has two guide grooves penetrating through the two sides.

[0018] Further, the wire arranging part comprises a prism segment and a thickened segment in the height direction of the wire arranging part, the cross-sectional area of the thickened segment is greater than that of the prism segment, the thickened segment is connected to the bottom plate, and the guide grooves are arranged at the top of the prism segment.

[0019] Further, the top of the annular support has an inwardly arranged positioning step, the bottom plate has an annular positioning groove near the edge, and the front shell has a first annular positioning part matched with the positioning step and a second annular positioning part matched with the annular positioning groove.

[0020] The edge of the diaphragm is overlapped on the positioning step and is pressed by the first annular positioning part.

[0021] Further, the top of the center cylinder has an axially limiting part extending towards the center.

[0022] The magnetic circuit assembly further comprises a magnetic bowl with an opening facing and connected to the axially limiting part, the magnetic steel is fixed in the magnetic bowl, the magnetic circuit assembly further comprises a pole piece fixed on the magnetic steel, and the voice coil is suspended in a gap between the pole piece and the magnetic bowl.

[0023] According to the second aspect of the present application, there is further provided a method for manufacturing the vehicle acoustic warning device according to any one of the first aspect, characterized in comprising the following steps:

[0024] fixing the magnetic circuit assembly in the central cylinder from the opening of the bottom plate;

[0025] fixing the voice coil on the diaphragm and fixing the diaphragm on the annular support;

[0026] after the lead wire on the voice coil is arranged in an arc shape by the wire arranging part, the wire arranging part is removed, and the lead wire is connected with the pin needle on the rear shell;

[0027] connecting the front shell with the rear shell.

[0028] The present application has the beneficial effects that: the present application sets the basin frame structure integrally on the bottom plate of the rear shell, sets the central cylinder towards the bottom plate through the through opening, so that the magnetic circuit assembly is directly installed through the bottom opening during specific assembly, the vibration assembly is installed through the annular support integrally on the floor, and the lead wire of the voice coil is conveniently arranged in an arc shape through the wire arranging part on the bottom plate, compared with the prior art, not only the operation is convenient, but also the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0030] Figure 1 It is an exploded structural schematic diagram of the vehicle acoustic warning device in the embodiment of the present application;

[0031] Figure 2 It is a structural schematic diagram of the rear shell in the embodiment of the present application;

[0032] Figure 3 It is a sectional structural schematic diagram of the vehicle acoustic warning device in the embodiment of the present application;

[0033] Figure 4 It is a sectional structural schematic diagram of the vehicle acoustic warning device in the embodiment of the present application; Figure 3 after the wire arranging part is removed;

[0034] Figure 5 It is a structural schematic diagram of a wire arranging part in the embodiment one when arranging the wire;

[0035] Figure 6A structure schematic view of a wire arrangement part in the second embodiment of the present application;

[0036] Figure 7 A structure schematic view of another wire arrangement part in the second embodiment of the present application;

[0037] Figure 8 A structure schematic view of still another wire arrangement part in the second embodiment of the present application;

[0038] Figure 9 A structure schematic view of yet another wire arrangement part in the second embodiment of the present application;

[0039] Figure 10 A structure schematic view of a partial enlargement of A in the second embodiment of the present application; Figure 3

[0040] Figure 11 A structure schematic view of a partial enlargement of B in the second embodiment of the present application; Figure 4

[0041] Figure 12 A flow chart of the steps of the preparation method of the vehicle acoustic warning device in the second embodiment of the present application.

[0042] Reference signs: 1, front shell; 11, first annular positioning part; 12, second annular positioning part; 2, rear shell; 21, bottom plate; 211, annular positioning groove; 22, basin structure; 221, central cylinder; 221a, axial limiting part; 221b, concave cavity; 221c, snap ring; 222, annular support; 222a, annular support table; 222b, support column; 222c, positioning step; 3, vibration assembly; 31, sound film; 32, voice coil; 4, magnetic circuit assembly; 41, magnetic steel; 42, magnetic bowl; 43, pole piece; 5, wire arrangement part; 51, guide groove; 52, prismatic section; 53, thickened section. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application.

[0044] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being “connected” to another element, it can be directly connected to the other element or intervening elements can be present. The terms “vertical”, “horizontal”, “left”, “right” and similar expressions used herein are for illustrative purposes only and are not meant to be limiting.

[0045] ​​Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0046] Embodiment one

[0047] As Figures 1 to 5 shown in the vehicle acoustic warning device, comprising a front shell 1, a rear shell 2, a vibration assembly 3 and a magnetic circuit assembly 4, as Figure 1 shown in the embodiment of the present application, the front shell 1 is in the form of a cover, in the embodiment of the present application, the front shell 1 comprises a top surface and a side wall perpendicular to the top surface, and the bottom of the side wall is open; it should be noted here that in the embodiment of the present application, the specific structure of the front shell 1 is not limited, for example, the top surface can be circular or square, and through the structure in the form of a cover, it is convenient to connect with the rear shell 2.

[0048] The rear shell 2 is arranged opposite to the open end of the front shell 1, comprising a bottom plate 21 for connecting with the front shell 1 and a pot rack structure 22 integrally formed on the bottom plate 21, the pot rack structure 22 comprises a center cylinder 221 vertically arranged in the center of the bottom plate 21 and an annular support 222 arranged at the periphery of the center cylinder 221, the bottom of the center cylinder 221 is arranged through the opening of the bottom plate 21, and the height of the annular support 222 is greater than that of the center cylinder 221; it should be noted here that the rear shell 2 is arranged opposite to the opening of the front shell 1, which means that during installation, the rear shell 2 is arranged opposite to the front shell 1, and the annular support 222 and the center cylinder 221 are inside the front shell 1 as Figure 3 shown in the figure; in the embodiment of the present application, the annular support 222 and the center cylinder 221 are integrally formed on the bottom plate 21, as Figure 3 shown in the figure, the bottom plate 21 is shaped with the top surface of the front shell 1, and the outer edge of the bottom edge is not shorter than the side wall of the front shell 1, at least flush with the outer edge of the side wall of the front shell 1. In the embodiment of the present application, by integrally forming the center cylinder 221 and the annular support 222 of the pot rack structure 22 on the bottom plate 21, and by arranging the bottom of the center cylinder 221 to be open, on the one hand, it saves the manufacturing process of the pot rack, and on the other hand, it reduces the installation steps of the pot rack and the bottom plate 21, and on the other hand, it also simplifies the installation procedure, compared with the prior art, not only saves the cost, but also improves the convenience of installation.

[0049] Please continue to refer to Figure 1In the embodiment of the present application, the vibration assembly 3 comprises the diaphragm 31 fixed on the annular support 222 and the voice coil 32 fixed on the bottom of the diaphragm 31; when the voice coil 32 passes through alternating current in the magnetic field, the magnetic field generated by the voice coil 32 interacts with the magnetic field, thereby driving the vibration of the diaphragm 31, so that the diaphragm 31 emits sound; in the embodiment of the present application, the magnetic circuit assembly 4 comprises the magnetic steel 41 fixed in the center cylinder 221, and the voice coil 32 and the magnetic steel 41 are gap matched to realize relative vibration; as shown in Figure 3 , the voice coil 32 and the magnetic steel 41 have a gap therebetween, and the voice coil 32 is in the magnetic field formed by the magnetic steel 41; by such arrangement, when the voice coil 32 passes through alternating current, the vibration of the diaphragm 31 is driven, thereby emitting the required warning sound.

[0050] In the embodiment of the present application, since the voice coil 32 is vibrating during operation, in order to avoid the collision between the lead wire and the diaphragm 31 when the voice coil 32 vibrates, affecting the sound quality or causing fatigue fracture of the lead wire, it is necessary to connect and fix the lead wire of the voice coil 32 with the connecting terminal on the shell after the lead wire is arranged in an arc before the shell is assembled; however, the traditional basket is of a horn-shaped structure, and the structure thereof makes the space at the bottom small, and it is difficult to arrange the arc operation; in the embodiment of the present application, the bottom plate 21 is further provided with the wire arranging part 5, the wire arranging part 5 is arranged between the center cylinder 221 and the annular support 222, the height of the wire arranging part 5 is between the center cylinder 221 and the annular support 222, the wire arranging part 5 is used for arranging the arc of the lead wire of the voice coil 32, and the wire arranging part 5 is removed after the lead wire of the voice coil 32 is arranged in an arc. As shown in Figure 3 and Figure 4 , by arranging the wire arranging part 5 between the center cylinder 221 and the annular support 222, the lead wire on the voice coil 32 is led to the position of the terminal, it is pointed out that in the embodiment of the present application, the terminal for leading the lead wire can also be arranged on the bottom plate 21, or can be arranged at the center cylinder 221, and the structure of the terminal for leading the lead wire has various forms, and the person skilled in the art can arrange it according to the needs, which will not be described herein. Please continue to refer to Figure 3 and Figure 4 , when the wire is arranged, the height of the wire arranging part 5 is between the center cylinder 221 and the annular support 222, so that the lead wire of the voice coil 32 is arranged in an arc by passing the top of the wire arranging part 5, and then the end of the lead wire is connected with the connecting terminal, and after the arc arrangement is completed, the wire arranging part 5 is removed, so that the lead wire is arranged in an arc. Figure 4

[0051] ​In the above embodiment, through the pot rack structure 22 integrally formed on the bottom plate 21 of the rear shell 2, the through opening of the center cylinder 221 towards the ground of the bottom plate 21 is arranged, so that the magnetic circuit assembly 4 is directly installed through the bottom opening during specific assembly, the vibration assembly 3 is installed through the annular support 222 integrally formed on the floor, and the lead of the voice coil 32 is arranged in an arc through the wire arrangement 5 arranged on the bottom plate 21. Compared with the prior art, not only the operation is convenient, but also the cost is reduced.

[0052] On the basis of the above embodiment, in the embodiment of the present application, the specific structure of the annular support 222 is as shown in Figure 5 The annular support 222 includes an annular support table 222a and a support column 222b fixed at both ends of the annular support table 222a and the bottom plate 21, and at least three support columns 222b are arranged in the circumferential direction, and the spacing between two adjacent support columns 222b is not less than the pick-and-place spacing of the wire arrangement 5. In the embodiment of the present application, the support column 222b can be provided as four as shown in Figure 2 , or three or more, and the annular support table 222a is supported by the support column 222b to provide space for the operation of the wire arrangement 5.

[0053] In an embodiment of the present application, the wire arrangement 5 is a tool structure temporarily placed on the bottom plate 21, as shown in Figure 5 The wire arrangement 5 is a plate-shaped structure with a height lower than the support column 222b, and the top of the wire arrangement 5 is provided with a rounded corner. That is, during the specific wire arrangement operation, the wire arrangement 5 is first placed between the center cylinder 221 and the support column 222b, then the lead is forced on the top of the wire arrangement 5, so that the lead forms an arc structure according to the top of the wire arrangement 5, then the wire arrangement 5 is removed, and the end of the lead is welded or inserted with the connecting terminal.

[0054] As shown in Figure 3 and Figure 10 In the embodiment of the present application, the top of the annular support 222 has an inwardly arranged positioning step 222c, the bottom plate 21 has an annular positioning groove 211 near the edge, and the front shell 1 has a first annular positioning part 11 matched with the positioning step 222c and a second annular positioning part 12 matched with the annular positioning groove 211; here, the inwardly arranged positioning step 222c means that the lower layer of the positioning step 222c is inside, and through the arrangement of the positioning step 222c, the positioning function for the fixation of the diaphragm 31 is provided to ensure the consistency of the fixation of the diaphragm 31. As shown in Figure 10As shown in FIG. 11, the annular positioning groove 211 is matched with the second annular positioning portion 12 at the bottom of the side wall of the front shell 1, the edge of the diaphragm 31 is overlapped on the positioning step 222c, and is pressed by the first annular positioning portion 11. Through the setting of the two positioning structures, on one hand, the accuracy of the connection between the front shell 1 and the rear shell 2 can be ensured, and on the other hand, the stability of the position between the rear shell 2 and the vibration system can be ensured, so that the stability of the relative position between the vibration assembly 3 and the magnetic circuit assembly 4 is ensured, and the reliability of the product is improved.

[0055] In addition, in the embodiment of the present application, as shown in Figure 11 As shown in FIG. 11, the top of the center cylinder 221 has an axial limiting portion 221a extending towards the center; it should be pointed out here that the axial limiting portion 221a can be a continuous annular structure, or can be intermittently arranged, and the inner diameter of the axial limiting portion 221a is greater than the outer diameter of the voice coil 32, so that the voice coil 32 can vibrate in the gap between the magnetic bowl 42 and the magnetic steel 41; in the embodiment of the present application, please continue to refer to Figure 11 The magnetic circuit assembly 4 further comprises a magnetic bowl 42 which is open towards the axial limiting portion 221a and is connected with the axial limiting portion 221a, the magnetic steel 41 is fixed in the magnetic bowl 42, the magnetic circuit assembly 4 further comprises a pole piece 43 fixed on the magnetic steel 41, and the voice coil 32 is suspended in the gap between the pole piece 43 and the magnetic bowl 42. In the embodiment of the present application, as shown in Figure 11 The open end of the magnetic bowl 42 is fixedly connected with the axial limiting portion 221a, the magnetic steel 41 is fixed on the bottom wall in the magnetic bowl 42, the pole piece 43 is fixed on the magnetic steel 41, and the height of the pole piece 43 after being fixed is matched with the height of the side wall of the magnetic bowl 42, through the setting of this form, the magnetic induction lines emitted by the magnetic steel 41 are transmitted to the upper part of the side wall of the magnetic bowl 42 through the bottom of the magnetic bowl 42, and then are transmitted to the pole piece 43 in parallel, and the magnetic field intensity is greater at the gap between the side wall of the magnetic bowl 42 and the pole piece 43, in the embodiment of the present application, the voice coil 32 is arranged between the pole piece 43 and the magnetic bowl 42 when being at the initial position, so that greater kinetic energy can be obtained; when the magnetic circuit assembly 4 is fixed, the magnetic steel 41 and the pole piece 43 can be fixed in the magnetic bowl 42 first, and then the magnetic bowl 42 is fixed on the axial limiting portion 221a from the bottom of the center cylinder 221; of course, the magnetic bowl 42 can be fixed in the center cylinder 221 first, and then the magnetic steel 41 and the pole piece 43 are fixed in the magnetic bowl 42.

[0056] In the embodiment of the present application, through the setting of the center cylinder 221, not only the installation space of the magnetic field assembly is provided, but also the height of the center cylinder 221 provides sufficient installation space for the setting of the wire arrangement part 5; in addition, in the embodiment of the present application, the center cylinder 221 forms a recess cavity 221b after the magnetic field assembly is installed, as shown in Figure 11 The recess cavity 221b also has the function of adjusting the sound production effect, as shown in Figure 11As shown in FIG. 1, a plurality of snap rings 221c are arranged at intervals along the height direction of the inner wall of the center cylinder 221, which are used for fixing the magnetic bowl 42 or the auxiliary magnet, and the user can adjust the position of the magnetic bowl 42 or increase or decrease the auxiliary magnet according to actual needs, so that the strength of the magnetic field is changed, and the sound effect of the sound is made more high-pitched or low-pitched.

[0057] In the embodiment of the present application, the preparation method of the vehicle acoustic warning device is as shown in Figure 12 The preparation method comprises the following steps:

[0058] S10: fixing the magnetic circuit assembly 4 in the center cylinder 221 from the opening of the bottom plate 21; the fixing of the magnetic circuit assembly 4 has been introduced above, which can be fixing the magnetic steel 41 and the magnetic bowl 42 first, then fixing the pole piece 43 and the magnetic steel 41, and then fixing the magnetic bowl 42 on the axial limiting portion 221a in the center cylinder 221; or the magnetic bowl 42 can be fixed in the center cylinder 221 first, and then the magnetic steel 41 and the pole piece 43 are fixed, and the specific fixing mode can be realized by the adhesive bonding mode.

[0059] S20: fixing the voice coil 32 on the sound film 31, and fixing the sound film 31 on the annular support 222; the voice coil 32 and the sound film 31 can be fixed by the bonding mode, and the sound film 31 fixed on the annular support 222 can also be realized by the adhesive bonding mode, and it is noted that the lead wire of the voice coil 32 is directed towards the terminal during the bonding.

[0060] S30: after the lead wire on the voice coil 32 is arranged in an arc line by the wire arranging part 5, the wire arranging part 5 is removed, and the lead wire is connected with the pin needle on the rear shell 2; it is pointed out that in the embodiment of the present application, the structure form of the wire arranging part 5 has multiple forms, which will be introduced in detail in the following embodiments of the present application.

[0061] S40: connecting the front shell 1 and the rear shell 2. During the specific bonding, the position is fixed by the two positioning structures, and then the front shell 1 and the rear shell 2 are fixed by the bonding or welding mode.

[0062] Embodiment two

[0063] In the embodiment of the present application, the structure form of the wire arranging part 5 is improved, and the structure forms of the remaining wire arranging parts 5 are introduced below, which are different from the embodiment one in that the wire arranging part 5 is integrally formed on the bottom plate 21, and the wire arranging part 5 is perpendicular to the bottom plate 21. The other components and compositions and the mounting form are the same as those of the embodiment one, which will not be described here.

[0064] As shown in Figure 6As shown in FIG. 5, the wire arranging member 5 is in a plate structure, and the top of the wire arranging member 5 is rounded, and the lead wires of the voice coil 32 are arranged in an arc line on the top of the wire arranging member 5. It should be pointed out here that the plate structure is inside the vertical projection of the annular support table 222a on the bottom plate 21, and through the plate structure, the arc line operation can be performed on both lead wires, the operation is more convenient, and the overall plate structure has better strength, and after the wire arranging is completed, the wire arranging member 5 can be cut off by scissors or other cutters.

[0065] As shown in FIG. 5, the wire arranging member 5 is in a plate structure, and the top of the wire arranging member 5 is rounded, and the lead wires of the voice coil 32 are arranged in an arc line on the top of the wire arranging member 5. It should be pointed out here that the plate structure is inside the vertical projection of the annular support table 222a on the bottom plate 21, and through the plate structure, the arc line operation can be performed on both lead wires, the operation is more convenient, and the overall plate structure has better strength, and after the wire arranging is completed, the wire arranging member 5 can be cut off by scissors or other cutters. Figure 7 As shown in FIG. 5, the wire arranging member 5 is in a plate structure, and the top of the wire arranging member 5 is rounded, and the lead wires of the voice coil 32 are arranged in an arc line on the top of the wire arranging member 5. It should be pointed out here that the plate structure is inside the vertical projection of the annular support table 222a on the bottom plate 21, and through the plate structure, the arc line operation can be performed on both lead wires, the operation is more convenient, and the overall plate structure has better strength, and after the wire arranging is completed, the wire arranging member 5 can be cut off by scissors or other cutters. Figure 7 As shown in FIG. 5, the wire arranging member 5 is in a plate structure, and the top of the wire arranging member 5 is rounded, and the lead wires of the voice coil 32 are arranged in an arc line on the top of the wire arranging member 5. It should be pointed out here that the plate structure is inside the vertical projection of the annular support table 222a on the bottom plate 21, and through the plate structure, the arc line operation can be performed on both lead wires, the operation is more convenient, and the overall plate structure has better strength, and after the wire arranging is completed, the wire arranging member 5 can be cut off by scissors or other cutters.

[0066] As shown in FIG. 5, the wire arranging member 5 is in a plate structure, and the top of the wire arranging member 5 is rounded, and the lead wires of the voice coil 32 are arranged in an arc line on the top of the wire arranging member 5. It should be pointed out here that the plate structure is inside the vertical projection of the annular support table 222a on the bottom plate 21, and through the plate structure, the arc line operation can be performed on both lead wires, the operation is more convenient, and the overall plate structure has better strength, and after the wire arranging is completed, the wire arranging member 5 can be cut off by scissors or other cutters. Figure 8 As shown in FIG. 5, the wire arranging member 5 is in a plate structure, and the top of the wire arranging member 5 is rounded, and the lead wires of the voice coil 32 are arranged in an arc line on the top of the wire arranging member 5. It should be pointed out here that the plate structure is inside the vertical projection of the annular support table 222a on the bottom plate 21, and through the plate structure, the arc line operation can be performed on both lead wires, the operation is more convenient, and the overall plate structure has better strength, and after the wire arranging is completed, the wire arranging member 5 can be cut off by scissors or other cutters. Figure 9 As shown in FIG. 5, the wire arranging member 5 is in a plate structure, and the top of the wire arranging member 5 is rounded, and the lead wires of the voice coil 32 are arranged in an arc line on the top of the wire arranging member 5. It should be pointed out here that the plate structure is inside the vertical projection of the annular support table 222a on the bottom plate 21, and through the plate structure, the arc line operation can be performed on both lead wires, the operation is more convenient, and the overall plate structure has better strength, and after the wire arranging is completed, the wire arranging member 5 can be cut off by scissors or other cutters.

[0067] It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A vehicle acoustic warning device, characterized in that: include: The front shell has a cover structure; a rear shell, disposed opposite the open end of the front shell, comprising a bottom plate for connection to the front shell and a basin frame structure integrally formed on the bottom plate, the basin frame structure comprising a central tube vertically disposed at the center of the bottom plate and an annular bracket disposed around the periphery of the central tube, the bottom of the central tube being disposed through an opening with the bottom plate, and the height of the annular bracket being greater than that of the central tube; A vibration assembly comprising a sound diaphragm having an edge fixed to the annular support and a voice coil fixed to the bottom of the sound diaphragm; The magnetic circuit assembly includes a magnetic steel fixed in the central tube, and the voice coil and the magnetic steel are in clearance fit to achieve relative vibration; The bottom plate is further provided with a wire management member, which is provided between the central tube and the annular bracket. The height of the wire management member is between the central tube and the annular bracket. The wire management member is used to manage the arc of the lead wire of the voice coil. The wire management member is removed after the lead wire of the voice coil is arranged into an arc. The annular bracket includes an annular support platform and support columns with two ends respectively fixed to the annular support platform and the base plate, at least three support columns are arranged along the circumferential direction, and the spacing between two adjacent support columns is not less than the pick-up and placement spacing of the cable management component; The top of the central tube has an axial limiting portion extending toward the center; The magnetic circuit assembly also includes a magnetic bowl with an opening toward the axial limit portion and connected to the axial limit portion, the magnet is fixed in the magnetic bowl, the magnetic circuit assembly also includes a pole piece fixed on the magnet, and the voice coil is suspended in the gap between the pole piece and the magnetic bowl.

2. The vehicle acoustic warning device according to claim 1, characterized in that: The cable management component is a plate-shaped structure with a height lower than that of the support column, and the top of the cable management component is rounded.

3. The vehicle acoustic warning device according to claim 1, characterized in that: The cable management component is integrally formed on the bottom plate, and the cable management component is perpendicular to the bottom plate.

4. The vehicle acoustic warning device according to claim 3, characterized in that: The wire management component is in a plate-like structure, and the top of the wire management component is provided with a rounded corner, and the lead wire of the voice coil is arranged into an arc through the top of the wire management component.

5. The vehicle acoustic warning device according to claim 3, characterized in that: The wire management component is a cylindrical structure, and the lead wire of the voice coil is wrapped around the side wall of the wire management component and then led out in an arc line.

6. The vehicle acoustic warning device according to claim 3, characterized in that: The cable management component is a prismatic structure, and the top of the cable management component is provided with guide grooves penetrating on both sides.

7. The vehicle acoustic warning device according to claim 6, characterized in that: The cable management member includes a prism section and a thickened section in its height direction. The cross-sectional area of ​​the thickened section is larger than that of the prism section. The thickened section is connected to the bottom plate. The guide groove is arranged on the top of the prism section.

8. The vehicle acoustic warning device according to claim 1, characterized in that: The top of the annular bracket has an inwardly arranged positioning step, the bottom plate has an annular positioning groove near the edge, and the front shell has a first annular positioning portion adapted to the positioning step and a second annular positioning portion adapted to the annular positioning groove; The edge of the sound membrane overlaps the positioning step and is pressed by the first annular positioning part.

9. A method for preparing a vehicle acoustic warning device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Fix the magnetic circuit assembly in the center tube through the opening of the bottom plate; Fix the voice coil on the diaphragm, and fix the diaphragm on the ring bracket; After using the wire management component to arrange the wires on the voice coil into an arc, remove the wire management component and connect the wires to the pins on the rear shell. Connect the front shell and the back shell.

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