Integrated sound production device and electric automobile

Abstract

The utility model relates to an integrated sound production device and an electric automobile, the integrated sound production device comprises a base and a sound production outer cover clamped on the base, the base and the sound production outer cover are enclosed to form an accommodating space, and a control circuit board and a sound production module are arranged in the accommodating space; a low-voltage interface which penetrates through the base and protrudes out of the upper surface and the lower surface of the base is embedded in the base, and a low-voltage connecting plug matched with the low-voltage interface is arranged on the control circuit board. The sound production module is electrically connected with the control circuit board, and the sound production surface of the sound production module faces the sound transmission hole of the sound production outer cover. According to the integrated sound production device, the low-speed prompt tone function and the klaxon share the same sound production module, and the klaxon device integrating the low-speed prompt tone function is designed, so that an external sound system scheme of an electric automobile at present is improved, the number of parts is reduced, the integration level of the klaxon is improved, and the cost is reduced. Therefore, the arrangement space on the automobile is saved, and the effect of reducing weight and cost is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle sound systems, in particular to an integrated sound-generating device and an electric vehicle. Background Art

[0002] The car horn makes sound by the vibration of the metal diaphragm. The car horn is composed of an iron core, a magnetic coil, a contact, an armature, a diaphragm, etc.

[0003] Principle of car electric horn: Car electric horn uses the current through the contact to pass through the coil, the coil generates magnetic force to attract the armature, and force the diaphragm to move. The armature moves to disconnect the contact, the current is interrupted, the coil magnetic force disappears, the diaphragm returns to its original position together with the armature under the action of its own elasticity and spring sheet, the contact closes the circuit again, the current flows through the contact and passes through the coil to generate magnetic force, and the above action is repeated. In this repeated cycle, the diaphragm vibrates continuously, thus making a sound.

[0004] When electric vehicles (pure electric vehicles, hybrid electric vehicles, fuel cell vehicles, etc.) are driving at low speeds in pure electric mode, the average external noise is significantly reduced compared with traditional internal combustion engine vehicles, making it difficult for other road users, including pedestrians, bicycles, etc., especially the blind and visually impaired, to detect the approach of the vehicle, which can easily lead to traffic accidents. In recent years, the National Highway Traffic Safety Administration (NHTSA) of the United States, the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) of Japan, the World Forum for Harmonization of Vehicle Regulations (WP29) of the United Nations Economic Commission for Europe (UNECE), etc. have done a lot of research and discussion on the safety of electric vehicles at low speeds. They unanimously determined that electric vehicles with pure electric driving modes must be equipped with a device that can emit a warning sound when driving at low speeds to reduce the probability of traffic accidents with pedestrians. Domestic automobile manufacturers are investing more and more in the field of electric vehicles. In order to avoid accidents caused by excessive silence, it is necessary to formulate technical standards for electric vehicles' low-speed driving warning sounds, improve the detectability of electric vehicles at low speeds, enhance the safety performance of electric vehicles, and effectively protect the personal safety of other road users including pedestrians.

[0005] With the rapid development of new energy vehicles, the demand for lightweight and integrated vehicles is increasing. At present, in new energy vehicles, the external sound system still realizes the corresponding functions through electric horns and low-speed warning sound systems. Both electric horns and low-speed warning sound devices are used to warn other road users by making sounds. The functional categories overlap and the layout requirements on the whole vehicle are similar, resulting in weight and cost redundancy, which does not meet the development requirements of reducing weight and cost, has a low degree of integration, and does not conform to the current development trend of new energy vehicles. Utility Model Content

[0006] In view of this, the purpose of the utility model is to overcome the deficiencies of the prior art and provide an integrated sound device and an electric vehicle to solve the problem that the electric horn and the low-speed warning sound system of the electric vehicle in the prior art are installed separately and used independently, and the integration is not high.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] In a first aspect of the present invention, an integrated sound-generating device is provided, comprising:

[0009] A base and a sound-generating outer cover clamped on the base, wherein the base and the sound-generating outer cover together form an accommodating space, and a control circuit board and a sound-generating module are arranged in the accommodating space;

[0010] The base is embedded with a low-voltage interface that penetrates the base and protrudes from the upper and lower surfaces of the base, and the control circuit board is provided with a low-voltage plug connector that matches the low-voltage interface; the sound module is electrically connected to the control circuit board, and the sound-emitting surface of the sound module faces the sound-transmitting hole of the sound-emitting outer cover.

[0011] Preferably, the low-voltage interface is located on the inner side of the base, and is used for plugging with the low-voltage plug connector;

[0012] The low-voltage interface is located on the outer side of the base and is used to be connected to the vehicle controller and / or the body controller.

[0013] Preferably, a first conductive connection column and a second conductive connection column are symmetrically arranged on the inner side of the base;

[0014] The control circuit board is provided with a first through hole and a second through hole correspondingly;

[0015] The first conductive connecting column passes through the first through hole and is electrically connected to the sound module;

[0016] The second conductive connecting column passes through the second through hole and is electrically connected to the sound module.

[0017] Preferably, the outer side of the base is provided with a first conductive end electrically connected to the first conductive connection column, and a second conductive end electrically connected to the second conductive connection column;

[0018] The first conductive end and the second conductive end are externally connected to an electric horn switch.

[0019] Preferably, the sound-emitting outer cover comprises a cylindrical cover body, the bottom end of the cover body is open, and the top end is provided with a plurality of evenly arranged sound-transmitting holes;

[0020] The bottom end of the cover body is buckled on the inner circumference of the base.

[0021] Preferably, an upper flange is connected to the outer circumference of the base, and a clamping protrusion is provided on the upper flange;

[0022] When the bottom end of the cover body is buckled on the inner circumference of the base, the clamping protrusion is clamped on the outer circumference of the cover body.

[0023] Preferably, a lower flange is provided on the outer circumference of the top end of the sound-emitting outer cover, and the lower flange is wrapped around the cover body; and an irregular convex edge is provided on the lower flange.

[0024] Preferably, the sound-generating module is an electrically controlled sound-generating module.

[0025] Preferably, the base and the sound-emitting cover are made of waterproof and dustproof materials.

[0026] A second aspect of the utility model provides an electric vehicle, comprising:

[0027] The integrated sound-generating device described above.

[0028] The utility model adopts the above technical solution, which has at least the following beneficial effects:

[0029] An electric horn device with an integrated low-speed warning sound function is designed by reusing the same sound module for the low-speed warning sound function and the electric horn, thereby improving the current external sound system solution of electric vehicles, reducing the number of parts, and improving the integration of the electric horn, thereby saving layout space on the vehicle and achieving the effect of reducing weight and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 An exploded view of an integrated sound-generating device provided in one embodiment of the utility model;

[0032] Figure 2 A schematic diagram of the overall structure of an integrated sound-generating device provided in one embodiment of the utility model;

[0033] Figure 3 A schematic diagram of the circuit connection relationship of an integrated sound-generating device provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0035] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments.

[0036] Embodiment 1

[0037] See also Figure 1 , an integrated sound-generating device provided by an embodiment of the utility model includes:

[0038] A base 10 and a sound-generating outer cover 40 clamped on the base 10, wherein the base 10 and the sound-generating outer cover 40 together form an accommodation space, and a control circuit board 20 and a sound-generating module 30 are arranged in the accommodation space;

[0039] The base 10 is embedded with a low-voltage interface 11 that penetrates the base 10 and protrudes from the upper and lower surfaces of the base 10, and the control circuit board 20 is provided with a low-voltage plug connector that matches the low-voltage interface 11; the sound module 30 is electrically connected to the control circuit board 20, and the sound-emitting surface of the sound module 30 faces the sound-transmitting hole of the sound-emitting outer cover 40.

[0040] In specific practice, the base 10 and the sound-emitting cover 40 can be made of waterproof and dustproof materials to reduce the entry of dust and moisture and extend the service life of the product.

[0041] It can be understood that the technical solution provided in this embodiment designs an electric horn device with an integrated low-speed warning sound function by reusing the same sound module 30 for the low-speed warning sound function and the electric horn, thereby improving the current external sound system solution of electric vehicles, reducing the number of parts, and improving the integration of the electric horn, thereby saving layout space on the vehicle and achieving the effect of reducing weight and cost.

[0042] In specific practice, the sound module 30 is an electrically controlled sound module 30 .

[0043] See also Figure 1 , the low-voltage interface 11 is located on the inner side of the base 10 and is used for connecting with the low-voltage plug connector;

[0044] The low-voltage interface 11 is located on the outer side of the base 10 and is used to connect to a vehicle controller and / or a body controller.

[0045] It should be noted that when the vehicle enters the anti-theft alarm, unlocking prompt and other states, the body controller inputs the relevant signal into the control circuit board 20, and the control circuit board 20 drives the sound module 30 to emit the alarm electric horn sound. Preferably, the sound can be configured to meet the requirements of GB 20816 "Vehicle Anti-theft Alarm System Passenger Car" standard based on the product structure provided by the utility model.

[0046] When the vehicle is powered on, the control circuit board 20 receives the gear signal, vehicle speed signal, etc. input by the vehicle controller. When driving at a low speed, the driving sound module 30 emits a low-speed driving prompt sound, and the sound meets the requirements of the GB / T 37153 "Electric Vehicle Low-Speed ​​Prompt Sound" standard.

[0047] In addition, when the vehicle is powered on, the vehicle controller can turn off the low-speed reminder sound function through a physical switch or a screen soft switch; in a hybrid vehicle, when the engine is running and the vehicle driving noise exceeds 75dB(A), the vehicle controller can also determine whether to turn on or off the low-speed driving reminder sound by identifying the engine start / stop. In the integrated sound device provided by the utility model, the control circuit board 20 only needs to receive the corresponding start / stop signal sent by the vehicle controller.

[0048] See also Figure 1 , a first conductive connection column and a second conductive connection column are symmetrically arranged on the inner side of the base 10;

[0049] The control circuit board 20 is correspondingly provided with a first through hole and a second through hole;

[0050] The first conductive connecting column passes through the first through hole and is electrically connected to the sound module 30;

[0051] The second conductive connecting column passes through the second through hole and is electrically connected to the sound module 30 .

[0052] Furthermore, the outer side of the base 10 is provided with a first conductive end (not shown in the drawings) electrically connected to the first conductive connection column, and a second conductive end (not shown in the drawings) electrically connected to the second conductive connection column;

[0053] See also Figure 3 The first conductive end and the second conductive end are externally connected to an electric horn switch (not shown in the drawings).

[0054] It should be noted that when the electric horn switch is pressed, the sound module 30 can be directly driven to emit a conventional electric horn sound. Preferably, the sound can be configured to meet the requirements of GB 15742 "Performance Requirements and Test Methods for Horns for Motor Vehicles" based on the product structure provided by the utility model.

[0055] In specific practice, the sound priority level can be configured as follows: pressing the electric horn switch > alarm type (anti-theft alarm) turns on the electric horn > reminder type (door unlocking, low-speed prompt sound) turns on the electric horn.

[0056] See also Figure 1 and Figure 2 The sound-generating outer cover 40 comprises a cylindrical cover body, the bottom end of the cover body is open, and the top end is provided with a plurality of evenly arranged sound-transmitting holes;

[0057] The bottom end of the cover body is buckled on the inner circumference of the base 10 .

[0058] An upper flange 12 is connected to the outer circumference of the base 10, and a clamping protrusion is provided on the upper flange 12;

[0059] When the bottom end of the cover body is buckled onto the inner circumference of the base 10 , the snap-fitting protrusion is snap-fitted onto the outer circumference of the cover body.

[0060] It is understandable that the upper flange 12 structure of the base 10 can make the connection between the sound-emitting cover 40 and the base 10 simple and easy to disassemble, which is convenient for later maintenance and replacement of circuit components.

[0061] See also Figure 1 and Figure 2 A lower flange 41 is provided on the outer circumference of the top end of the sound-generating outer cover 40 , and the lower flange 41 is wrapped around the cover body; an irregular convex edge is provided on the lower flange 41 .

[0062] It can be understood that the lower flange 41 structure of the sound-emitting outer cover 40 can enable the sound-emitting outer cover 40 to be tightly engaged with other components in the surrounding environment, thereby facilitating fixing the position of the integrated sound-emitting device provided in this embodiment in the entire vehicle.

[0063] Embodiment 2

[0064] According to another exemplary embodiment of the present utility model, an electric vehicle is provided, comprising:

[0065] The integrated sound-generating device described above.

[0066] It can be understood that since the electric vehicle provided in this embodiment includes the above-mentioned integrated sound device, and the above-mentioned integrated sound device reuses the low-speed warning sound function and the electric horn with the same sound module, an electric horn device with an integrated low-speed warning sound function is designed, thereby improving the current electric vehicle external sound system solution, reducing the number of parts, and improving the integration of the electric horn, thereby saving layout space on the car and achieving the effect of reducing weight and cost.

[0067] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise clearly defined.

Claims

1. An integrated sound-generating device, characterized in that: include: A base and a sound-generating outer cover clamped on the base, wherein the base and the sound-generating outer cover together form an accommodating space, and a control circuit board and a sound-generating module are arranged in the accommodating space; The base is embedded with a low-voltage interface that penetrates the base and protrudes from the upper and lower surfaces of the base, and the control circuit board is provided with a low-voltage plug connector that matches the low-voltage interface; the sound module is electrically connected to the control circuit board, and the sound-emitting surface of the sound module faces the sound-transmitting hole of the sound-emitting outer cover.

2. The integrated sound generating device according to claim 1, characterized in that: The low-voltage interface is located on the inner side of the base and is used for plugging with the low-voltage plug connector; The low-voltage interface is located on the outer side of the base and is used to be connected to the vehicle controller and / or the body controller.

3. The integrated sound generating device according to claim 1, characterized in that: A first conductive connection column and a second conductive connection column are symmetrically arranged on the inner side of the base; The control circuit board is provided with a first through hole and a second through hole correspondingly; The first conductive connecting column passes through the first through hole and is electrically connected to the sound module; The second conductive connection column passes through the second through hole and is electrically connected to the sound module.

4. The integrated sound-generating device according to claim 3, characterized in that: The outer side of the base is provided with a first conductive end electrically connected to the first conductive connection column and a second conductive end electrically connected to the second conductive connection column; The first conductive end and the second conductive end are externally connected to an electric horn switch.

5. The integrated sound generating device according to claim 1, characterized in that: The sound-generating outer cover comprises a cylindrical cover body, the bottom end of the cover body is open, and the top end is provided with a plurality of evenly arranged sound-transmitting holes; The bottom end of the cover body is buckled on the inner circumference of the base.

6. The integrated sound-generating device according to claim 5, characterized in that: An upper flange is connected to the outer circumference of the base, and a clamping protrusion is provided on the upper flange; When the bottom end of the cover body is buckled on the inner circumference of the base, the clamping protrusion is clamped on the outer circumference of the cover body.

7. The integrated sound-generating device according to claim 5, characterized in that: A lower flange is arranged on the outer circumference of the top end of the sound-generating outer cover, and the lower flange is wrapped on the cover body; and an irregular convex edge is arranged on the lower flange.

8. The integrated sound generating device according to any one of claims 1 to 7, characterized in that: The sound-generating module is an electrically controlled sound-generating module.

9. The integrated sound-generating device according to claim 8, characterized in that: The base and the sound-generating outer cover are made of waterproof and dustproof materials.

10. An electric vehicle, characterized in that: include: An integrated sound-generating device as claimed in any one of claims 1 to 9.

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